Abstract: ABSTRACT A DEVICE COMPRISING OXIDATIVE COMPOSITION FOR DYEING OF KERATIN FIBRES The present disclosure provides a device and compositions for dyeing of keratin fibres. The device (100, 300 or 400) comprises a first compartment (202, 310 or 402) having a first composition; and a second compartment (204, 312 or 404) having a second composition, in a closed envelope (102, 302, or 400a and 400b) having flexible walls. The first composition includes at least one oxidative dye, the total amount of oxidative dye(s), at least one fatty compound, and at least one first surfactant and the second composition includes at least one oxidizing agent and at least one second surfactant. The present disclosure further provides a method for dyeing of keratin fibres. The present disclosure achieves efficient color delivery along with good conditioning effect and having improved user convenience.
FORM 2
THE PATENTS ACT, 1970
(39 of 1970)
&
THE PATENTS RULES, 2003
COMPLETE SPECIFICATION (See section 10, rule 13)
1. Title of the invention: A DEVICE COMPRISING OXIDATIVE COMPOSITION FOR
DYEING OF KERATIN FIBRES
2. Applicant(s)
NAME NATIONALITY ADDRESS
L'OREAL French 14 rue Royale 75008 PARIS, France
3. Preamble to the description
COMPLETE SPECIFICATION
The following specification particularly describes the invention and the manner in which it
is to be performed.
FIELDOFINVENTION
[0001] The present disclosure relates, in general, to personal care products,
and more particularly, to devices and compositions for dyeing of keratin fibres. The present disclosure further relates to a method for dyeing of keratin fibres.
BACKGROUNDOFINVENTION
[0002] Oxidative permanent hair dye products are widely used for coloring
hair, and for covering grey hair. Typically, these products include compositions having an oxidative dye colorant and a developer with an oxidizing agent. However, such compositions having varying consistencies face issues as they do not always form a homogenous mixture while mixing during application. This in turn affects the cosmetic properties of the product as it fails to achieve uniform dyeing of the fibres.
[0003] Further, the colorant and developer are packaged separately and
required to be mixed before application. Among commercially available products, it is already known to use two-compartment devices in the form of sachet to package the colorant and the developer separately. Such products having varied rheologies often pose issues in achieving optimum spreadability on the hair.
[0004] It is desirable to achieve a creamy texture and uniform consistency
in the compositions. However, the use of thickeners or rheology modifiers pose an
issue in respect of stability in oxidizing compositions. Such issues of stability may
be attributed to the high reactivity of such thickeners with the oxidizing agents.
[0005] Additionally, the colorant and developers are generally required to
remain on the hair for a pause time of about 30 to 60 minutes, for color development. It is highly desirable to reduce this pause time to achieve faster coloration of hair, especially without compromising on color uptake by the keratin fibres. Generally known oxidative compositions are required to have a pause time of about 60 minutes making hair dyeing a time taking process.
[0006] Therefore, there is a need to improve user convenience of such
devices while providing good tinctorial and cosmetic properties in a short time.
SUMMARYOFTHEINVENTION
[0007] In an aspect of the present disclosure, there is provided a device
(100, 300 or 400) comprising a first compartment 202 and a second compartment (204) each defined in a closed envelope (102, 302 or 400a and 400b) having flexible walls, wherein said first compartment (202, 310 or 402) comprises a first composition (208) in the form of an emulsion, preferably an oil in water emulsion, comprising at least one oxidative dye, at least one fatty compound different from fatty acids, and at least one first surfactant; and said second compartment (204, 312 or 404) comprises a second composition (210) in the form of an emulsion, preferably an oil in water emulsion, comprising at least one oxidizing agent and at least one second surfactant.
[0008] In an aspect of the present disclosure, there is provided a device
(100, 300 or 400) comprising a first compartment (202, 310 or 402) and a second compartment (204 , 312 or 404) each defined in a closed envelope (102, 302 or 400a and 400b) having flexible walls, wherein said first compartment (202, 310 or 402) comprises a first composition (208) in the form of an emulsion, preferably an oil in water emulsion, comprising at least one oxidative dye, the total amount of oxidative dye(s) in the first composition ranging from 0.0002% to 20% by weight of the first composition, at least one fatty compound different from fatty acids, at least one first surfactant, the total amount of the first surfactant in the first composition ranging from 0.1 to 20% by weight of the first composition; and said second compartment (204, 312 or 404) comprises a second composition (210) in the form of an emulsion, preferably an oil in water emulsion, comprising at least one oxidizing agent and at least one second surfactant.
[0009] According to one aspect of the device, the two compartments (402
and 404) are defined in two separated closed envelopes (400a and 400b) having flexible walls. According to this aspect, the first compartment is defined in a first
sachet and the second compartment is defined in a second sachet, distinct of the first sachet.
[0010] According to another aspect of the device, which is a preferred
aspect of the device according to the invention, the two compartments (202) and (204) are defined in a single closed envelope (102) having flexible walls, the two compartments (202) and (204) is separated by an internal wall (206).
[0011] According to another aspect of the device, which is a preferred
aspect of the device according to the invention, the two compartments (310) and (312) are defined in a single closed envelope (302) having flexible walls, the two compartments (310) and (312) is separated by a seal (314).
[0012] In another aspect of the present disclosure, there is provided a
method for dyeing of keratin fibres, the method comprising applying the first composition and second composition on said fibre, wherein the first composition (208) in the form of an emulsion, preferably an oil in water emulsion, comprises at least one oxidative dye, the total amount of oxidative dye(s) in the first composition ranging from 0.0002% to 20% by weight of the first composition, at least one fatty compound different from fatty acids, at least one first surfactant, the total amount of the first surfactant in the first composition ranging from 0.1 to 20% by weight of the first composition; and the second composition (210) in the form of an emulsion, preferably an oil in water emulsion, comprises at least one oxidizing agent and at least one second surfactant, wherein compositions are contained in a device (100) comprising a first compartment (202) and a second compartment (204) each defined in a closed envelope (102) having flexible walls, wherein said first compartment (202) comprises the first composition (208), and said second compartment (204) comprises a the second composition (210).
[0013] In another aspect of the present disclosure, there is provided a
method for dyeing of keratin fibre, comprising providing the device as described herein; providing the first composition and second composition by applying sustained pressure on the device; mixing the first composition and second composition to obtain a mixture, applying the mixture on said fibre; and allowing the mixture to stand for a pause time ranging from 5 to 15 minutes.
[0014] The device, according to the present invention, is very easy to use
and allows to obtain quickly a uniform mixing of the compositions. The mixture provides better tinctorial and cosmetic properties, especially uniform color delivery, even color tone, efficient coloration, long lasting effect, improved color effect, such as intensity, selectivity, chromaticity, and good conditioning effect.
[0015] These and other features, aspects, and advantages of the present
subject matter will be better understood with reference to the following description and appended claims. This summary is provided to introduce a selection of concepts in a simplified form. This summary is not intended to identify key features or essential features of the claimed subject matter, nor is it intended to be used to limit the scope of the claimed subject matter.
BRIEFDESCRIPTIONOFTHEFIGURES
[0016] FIG. 1a illustrates a perspective view of an example of a device,
according to an embodiment herein;
[0017] FIG. 1b illustrates a front view of the device of FIG.1a, according to
an embodiment herein; and
[0018] FIG. 2 shows a schematic view of the device of FIG. 1a in an open
state, according to an embodiment herein.
[0019] FIG. 3a and FIG 3b illustrate a perspective view of another
embodiment of a device in two different positions.
[0020] FIG. 4 illustrates a perspective view of yet another embodiment of a
device.
DESCRIPTIONOFTHEINVENTION
[0021] Those skilled in the art will be aware that the present disclosure is
subject to variations and modifications other than those specifically described. It is to be understood that the present disclosure includes all such variations and modifications. The disclosure also includes all such steps, features, compositions, and compounds referred to or indicated in this specification, individually or collectively, and any and all combinations of any or more of such steps or features.
Definitions
[0022] For convenience, before further description of the present
disclosure, certain terms employed in the specification, and examples are delineated
here. These definitions should be read in the light of the remainder of the disclosure
and understood as by a person of skill in the art. The terms used herein have the
meanings recognized and known to those of skill in the art, however, for
convenience and completeness, particular terms and their meanings are set forth
below.
[0023] The articles “a”, “an” and “the” are used to refer to one or to more
than one (i.e., to at least one) of the grammatical object of the article.
[0024] The terms “comprise” and “comprising” are used in the inclusive,
open sense, meaning that additional elements may be included. It is not intended to
be construed as “consists of only”.
[0025] The term "at least one" is used to mean one or more and thus includes
individual components as well as mixtures/combinations.
[0026] Throughout this specification, unless the context requires otherwise
the word “comprise”, and variations such as “comprises” and “comprising”, will be
understood to imply the inclusion of a stated element or step or group of element or
steps but not the exclusion of any other element or step or group of element or steps.
[0027] The term “including” is used to mean “including but not limited to”.
“Including” and “including but not limited to” are used interchangeably.
[0028] The term “INCI” is an abbreviation of International Nomenclature
of Cosmetic Ingredients, which is a system of names provided by the International
Nomenclature Committee of the Personal Care Products Council to describe
personal care ingredients.
[0029] The term “pause time”, as used herein, refers to the time period a
hair dyeing product or composition remains on hair. It particularly refers to the
duration of time for which the hair dyeing product/composition remains on the hair
for coloration or color development.
[0030] The term “alkanolamine”, as used herein, refers to an organic amine
comprising a primary, secondary, or tertiary amine function, and one or more linear
or branched C1-C8 alkyl groups bearing one or more hydroxyl radicals.
[0031] The term “alkoxylated surfactant”, as used herein, refers to
surfactants having oxyalkyl or oxyalkylene units, for example, oxyethylene units, oxypropylene units, or combinations thereof, and include monooxyalkylated and/or polyoxyalkylated surfactants.
[0032] The term “C8-C30 fatty alcohol”, as used herein, refers to fatty
alcohols which are linear or branched, acyclic or cyclic, substituted or
unsubstituted, saturated or unsaturated alcohols containing 8 to 30 carbon atoms.
[0033] The term “C8-C30 amides”, as used herein, refers to amides which
are linear or branched, acyclic or cyclic, substituted, or unsubstituted, saturated, or unsaturated amides containing from 8 to 30 carbon atoms. The C8-C30 acids, in various embodiments herein, refers to acids, for eg: fatty acid, which are linear or branched, acyclic or cyclic, substituted, or unsubstituted, saturated, or unsaturated acids containing 8 to 30 carbon atoms.
[0034] The term "associative polymers", as used herein, refers to water-
soluble polymers that are capable, in an aqueous medium, of reversibly combining with each other or with other molecules. Their chemical structure comprises at least one hydrophilic region and at least one hydrophobic region characterized by at least one C8-C30 fatty chain.
[0035] The term “amphoteric polymers”, as used herein, refers to any
polymer comprising cationic groups and/or groups that can be ionized to cationic
groups, and anionic groups and/or groups that can be ionized to anionic groups.
[0036] The term “liquid”, as used herein, refers to liquid state, especially of
fatty compounds, at ambient temperature (25°C) and at atmospheric pressure (760 mmHg or 1.013 × 105 Pa), and includes for eg: oils.
[0037] The term “oil in water emulsion”, as used herein refers to mixture
wherein oil (the dispersed phase) is dispersed in an aqueous solution (the continuous phase).
[0038] All percentages, parts and ratios are based upon the total weight of
the compositions of the present disclosure unless otherwise indicated. Ratios, concentrations, amounts, and other numerical data may be presented herein in a range format. It is to be understood that such range format is used merely for convenience and brevity and should be interpreted flexibly to include not only the numerical values explicitly recited as the limits of the range, but also to include all the individual numerical values or sub-ranges encompassed within that range as if each numerical value and sub-range is explicitly recited. For example, a percentage range of about 15 % to 20 % should be interpreted to include not only the explicitly recited limits of about 15 % to about 20 %, but also to include sub-ranges, such as 16 % to 18 %, 17 % to 19%, and so forth, as well as individual amounts, including fractional amounts, within the specified ranges, such as 15.8 %, and 17.25 %, for example.
[0039] Unless defined otherwise, all technical and scientific terms used
herein have the same meaning as commonly understood by one of ordinary skill in the art to which this disclosure belongs. Although any methods and materials similar or equivalent to those described herein can be used in the practice or testing of the disclosure, the preferred methods and materials are now described. All publications mentioned herein are incorporated herein by reference.
[0040] The present disclosure is not to be limited in scope by the specific
embodiments described herein, which are intended for the purposes of exemplification only. Functionally equivalent products, compositions, and methods are clearly within the scope of the disclosure, as described herein.
[0041] Embodiments herein provide a device containing compositions for
dyeing of keratin fibres. The device, according to embodiments herein, containing the compositions achieves improved tinctorial and cosmetic properties in dyeing of the fibres. It facilitates achieving uniform color delivery, smoothening of keratin fibres, and long-lasting effect while having a shorter pause time. It further provides improved user convenience and faster dyeing solutions while achieving efficient color delivery, long lasting effect, improved color effect, such as intensity, selectivity, chromaticity, along with good conditioning effect. Further, the first
composition and second composition, according to embodiments herein, are emulsions, preferably oil in water emulsions, having rheological properties that are suited to provide uniform delivery on the fibres and have creamy consistency. The embodiments herein provide a user convenient method of dyeing keratin fibres which also enables improved and even coverage through application by hand and does not require the use of brushes, bowls, etc., for application. Accordingly, the embodiments herein provide a method for dyeing keratin fibres. The embodiments herein, further, include a method for preparation of the compositions.
[0042] Referring now to the figures, FIG. 1a illustrates a perspective view
of an example of a device 100, according to embodiments herein. This embodiment is the preferred embodiment of the device according to the invention. As illustrated in FIG. 1a, the device 100 is composed of a closed envelope 102, made of at least two flexible sidewalls 104a and 104b (collectively or individually referred to as 104) secured together along their peripheral edges 106, defining a sealed perimeter 108 and an internal volume. The sealed perimeter 108 has at least four ends 110a, 110b, 110c, and 110d (collectively or individually referred to as 110). Preferably, the sealed perimeter 108 has a width of between 5 to 15 mm.
[0043] The device 100 may also comprise an opening means, for example
by way of tearing or cutting with a pair of scissors. According to a preferred embodiment, the opening means is a pre-cut line 112, for example, from a first end 110a of the sealed perimeter 108 to a second end 110b of the sealed perimeter 108, as illustrated in FIG. 1a. When the device 100 is torn along the pre-cut line 112, the internal volume of the device becomes unsealed, and defining two distinct openings 212 and 214, a first opening 212 of a first compartment 202 and a second opening 214 of a second compartment 204. Preferably, the two openings 212 and 214 are adjacent.
[0044] In an embodiment, the device 100 may be torn along the pre-cut line
112 using a tool such as a pair of scissors. Alternatively, in another embodiment, the pre-cut line 112 can be produced by laser, and can then be torn easily without a tool.
[0045] Each flexible sidewall 104a and 104b is made of at least one sheet
of polymeric film. The sheet of polymeric film can be either a single layer or a
multilayer polymeric film. The layers of polymeric film may be different in
structure.
[0046] The length of the sidewalls 104a and 104b preferably ranges from
100 to 200 mm, and more preferentially from 120 to 160 mm.
[0047] The width of the sidewalls 104a and 104b preferably ranges from
100 to 200 mm, and more preferentially from 120 to 200 mm.
[0048] FIG. 1b illustrates a front view of the device of FIG.1a. FIG. 1b
illustrates that the pre-cut line 112 starts from the first end 110a of the sealed
perimeter 108 and ends at the second end 110b of the sealed perimeter 108.
[0049] FIG. 2 illustrates a schematic view of the device 100 in an open state.
The open state refers to a state when the internal volume of the device 100 is
unsealed by tearing a part of the device 100 along the pre-cut line 112. The internal
volume of the device 100 is divided in at least two distinct compartments 202 and
204, separated from one another by at least one internal wall 206.
[0050] According to the present invention, at least one of the compartments
202 contains a first composition 208, and the second compartment 204 contains a
second composition 210.
[0051] In other words, the first compartment 202 containing the first
composition 208 is separated from the second compartment 204 containing the
second composition 210 by the internal wall 206. The first composition 208 and the
second composition 210 are thus contained in two different compartments 202 and
204 and, cannot commingle together.
[0052] Preferably, the device 100 is divided into two distinct compartments
202 and 204.
[0053] According to this embodiment the two compartments 202 and 204
are joined by one wall, preferably the internal wall 206.
[0054] The internal wall 206, according to the present invention, is
comprised in the internal volume of the closed envelope 102. The internal wall 206
has at least four edges. Each of four edges of the internal wall 206 is connected to
at least one end 110 of the sealed perimeter 108. For example, a first edge of the internal wall 206 may be connected to the first end 110a, a second edge of the internal wall 206 may be connected to the second end 110b, a third edge of the internal wall 206 is connected to the third end 110c, and a fourth edge of the internal wall 206 is connected to the fourth end 110d.
[0055] The expressions “seal” or “sealed perimeter”, according to the
present disclosure, refers to a definitive bond between two sheets of polymeric film or between two parts of a sheet folded back on itself. This seal can be obtained fusing and/or mixing together the two sheets or the two parts. In other words, the seal between the two sheets or the two parts cannot be opened without damaging the walls formed by the two sheets or by the two parts. Sealing of the edges may be achieved by methods that are generally known and apparent to a person skilled in the art. The first and second compositions, may be filled in the first and second compartments, respectively, by methods generally known in the art. Various techniques and equipments are generally known in the art for sealing, filling and other packaging or fabrication of devices, sachets, etc which may be employed in achieving the various embodiments herein.
[0056] The internal wall 206 provides impermeability between the first
compartment 202 and the second compartment 204, avoiding the first composition 208 contained in the first compartment 202 to mix with the second composition 210 contained in the second compartment 204.
[0057] In the open state, when a user applies pressure to the closed envelope
102, the two compartments 202 and 204 allow discharge of the first composition 208 through the first opening 212 and the second composition 210 separately, through the second opening 214, preferably simultaneously and/or at a similar speed.
[0058] FIG. 3a illustrates a perspective view of a second embodiment of a
device 300, according to the invention. As illustrated in FIG. 3a, the device 300 is composed of a closed envelope 302, made of at least two flexible sidewalls 304a and 304b (collectively or individually referred to as 304) secured together along their peripheral edges 306, defining a sealed perimeter 308 and an internal volume.
The internal volume is divided in at least two distinct compartments 310 and 312,
separated from one another by at least one seal 314. According to the present
invention, at least one of the compartments 310 contains the first composition 208,
and the second compartment 312 contains the second composition 210.
[0059] In other words, the first compartment 310 containing the first
composition 208 is separated from the second compartment 312 containing the second composition 210 by the seal 314. The seal 314 may be formed by sealing the flexible sidewalls 304a and 304b together. The flexible sidewalls 304a and 304b may be sealed together for example by heat or ultrasonic process.
[0060] The first composition 208 and the second composition 210 are thus
contained in two different compartments 310 and 312 and, cannot commingle together.
[0061] Preferably, the device 300 is divided into two distinct compartments
310 and 312.
[0062] The sealed perimeter 308 has at least four ends 316a, 316b, 316c,
and 316d (collectively or individually referred to as 316). In an example
embodiment, the sealed perimeter 308 may have a width of between 5 to 15 mm.
[0063] The seal 314, according to the present invention, is comprised in the
internal volume of the closed envelope 302. Each of two ends of the seal 314 is
connected to at least one end 316 of the sealed perimeter 308. As illustrated in FIG.
1, one of the ends of the seal 314 is connected to the first end 316a, while the other
end of the seal 314 is connected to the second end 316c of the sealed perimeter 308.
[0064] The device 300 may also comprise an opening means for each
compartment 310 and 312. According to a preferred embodiment, the opening means includes a first pre-cut line 318, for example, from a first end 316a of the sealed perimeter 308 to a second end 316b of the sealed perimeter 308, for the first compartment 310 as illustrated in FIG. 3a. Further, the opening means includes a second pre-cut line 320, for example, from a first end 316a of the sealed perimeter 308 to a second end 316d of the sealed perimeter 308, for the second compartment 312 as illustrated in FIG. 3a. When the device 300 is torn along the pre-cut lines 318 and 320, the internal volume of the device becomes unsealed.
[0065] In an embodiment, the device 300 may be torn along the pre-cut lines
318 and 320 using a tool such as a pair of scissors. Alternatively, in another embodiment, the pre-cut lines 318 and 320 can be produced by laser, and can then be torn easily without a tool. The first compartment 310 can be opened by tearing a part of the device 300 along the first pre-cut line 318 and the second compartment 312 can be opened by tearing a part of the device 300 along the second pre-cut line 320. Therefore, the first compartment 310 and the second compartment 312 may be opened separately.
[0066] FIG. 3b illustrates a perspective view of the device 300 when the
device 300 is folded along the seal 314. When the device 300 is folded along the seal 314, a consumer may unseal the internal volume by tearing a part of the device 300 along both the pre-cut lines 318 and 320 together. Further, when a consumer applies a pressure to the closed envelope 302 and when the internal volume of the device 300 is unsealed, the two compartments 310 and 312 allow discharge of the first composition 208 and the second composition 210 separately, preferably simultaneously and/or at a similar speed. Preferably, the device can be folded along the seal 314 before unsealing the internal volume, in order to facilitate the unsealing and the discharge of the compositions. Therefore, the device 300 facilitates the unsealing of the internal volume of the device 300 and the discharge of the first composition 208 and the second composition 210.
[0067] FIG. 4 illustrates a perspective view of a third embodiment of a
device 400. As illustrated in FIG. 4, the device 400 is composed of two separated closed envelopes 400a and 400b. One closed envelope 400a defines a first compartment 402 and another closed envelope 400b defines a second compartment 404. According to the third embodiment, the two compartments 402 and 404 are not joined together. According to the present invention, at least one of the compartments 402 contains the first composition 208, and the second compartment 404 contains the second composition 210. In an embodiment, the first compartment is defined in a first sachet and the second compartment is defined in a second sachet, distinct of the first sachet.
[0068] Each closed envelope 400a and 400b may comprise an opening
means. According to a preferred embodiment, the opening means includes a pre-
cut line 406a and 406b as illustrated in FIG. 4. When the closed envelope 400a is
torn along the pre-cut line 406a, the first composition 208 may be moved out of the
device 400 by applying a pressure on the closed envelope 400a. When the closed
envelope 400b is torn along the pre-cut line 406b, the second composition 210 may
be moved out of the device 400 by applying a pressure on the closed envelope 400b.
The pre-cut lines 406a and 406b may be similar to pre-cut lines 318 and 320.
[0069] Accordingly, in an embodiment, the device (100, 300, or 400)
comprises the first compartment (202) and a second compartment (204) each defined in a closed envelope (102, 302, or 400a and 400b, respectively) having flexible walls.
[0070] According to a preferred embodiment, the closed envelope 102, as
well as closed envelopes 302, 400a and 400b, is made of at least one sheet of polymeric film folded back on itself and sealed at its corresponding peripheral edges 106, 306 and so on. In other words, according to this particular embodiment, the two flexible sidewalls 104a and 104b are made of the same sheet of polymeric film, which can be either a single layer or a multilayer polymeric film.
[0071] Preferably the sheet of polymeric film is a multilayer polymeric film
comprising at least two, different or identical, layers of polymeric film. Thus, the sheet of polymeric film has a laminate structure and the layers of polymeric film are superposed on one another.
[0072] A second sheet can optionally be made of paper.
[0073] The sheet of polymeric film suitable for the present invention is
preferably prepared from polyvinyl chloride (PVC), polyesters, polyolefins, polyamides, or polystyrenes.
[0074] Examples of polyvinyl chloride (PVC) are vinyl polymers
containing vinyl chloride units in their structure, such as copolymers of vinyl chloride with vinyl esters of aliphatic acids, copolymers of vinyl chloride with esters of acrylic or methacrylic acid or with acrylonitrile, copolymers of vinyl chloride with diene bonds and unsaturated dicarboxylic acids or anhydrides thereof,
copolymers of vinyl chloride and vinylidene chloride with unsaturated aldehydes, ketones, etc., or polymers and copolymers of vinylidene chloride with vinyl chloride or other polymerizable compounds. The thermoplastics based on vinyl can also be rendered flexible in a manner known per se by means of primary or secondary plasticizers. The PVC sheets can, as the case may be, also be drawn monoaxially (oPVC) or biaxially.
[0075] Examples of polyesters are poly(alkylene terephthalate)s or
poly(alkylene isophthalate)s having alkyl groups or radicals containing from 2 to
10 carbon atoms or alkyl groups containing from 2 to 10 carbon atoms which are
interrupted at least by one -O-, such as, for example, poly(ethylene terephthalate)
(PET sheets), poly(propylene terephthalate), poly(butylenes terephthalate)
(poly(tetramethylene terephtalate)), poly(decamethylene terephthalate), poly(1,4-
cyclohexyldimethylol hterephthalate) or poly(ethylene 2,6
naphthalenedicarboxylate), or copolymers of poly(alkylene terephthalate) and
poly(alkylene isophthalate), the proportion of isophthalate being, for example, from
1 to 10 mol%, copolymers and terpolymers, and also block polymers and grafted
alternative forms of the abovementioned substances. Other appropriate polyesters,
such as polyethylene naphthalate, are known in the technical field under the
abbreviation PEN.
[0076] Other polyesters are copolymers of terephthalic acid and of another
polycarboxylic acid with at least one glycol. Copolyesters of terephthalic acid, of ethylene glycol and of an additional glycol are appropriate. Glycol-modified polyesters, which are known in the technical field under the name PETG, are preferred.
[0077] Appropriate polyesters are composed of poly(alkylene
terephthalate)s having alkyl groups or radicals comprising 2 to 10 carbon atoms and poly(alkylene terephthalate)s having alkyl groups or radicals containing 2 to 10 carbon atoms which are interrupted by 1 or 2 -O-.
[0078] Other preferred polyesters are poly(alkylene terephthalate)s having
alkyl groups or radicals containing 2 to 4 carbon atoms and preference is very
particularly given to polyethylene terephthalate)s. These polyethylene
terephthalate)s also include A-PET, PETP and the PETG mentioned or the G-PET.
[0079] Examples of polyolefins are polyethylenes (PE), for example high
density polyethylene (HDPE, density of greater than 0.944 g/cm3), medium density polyethylene (MDPE, density of 0.926 to 0.940 g/cm3), linear medium density polyethylene (LMDPE, density of 0.926 to 0.940 g/cm3), low density polyethylene (LDPE, density of 0.910 to 0.925 g/cm3) and linear low density polyethylene (LLDPE, density of 0.916 to 0.925 g/3), for example in the form of nonoriented sheets (PE sheet) or monoaxially or biaxially oriented sheets (oPE sheet), polypropylenes (PP), such as axially or biaxially oriented polypropylene (oPP sheet) or cast polypropylene (cPP sheet), amorphous or crystalline polypropylene or blends thereof or atactic or isotactic polypropylene or blends thereof, poly(1-butene), oly(3-methylbutene), poly(4-methylpentene) and copolymers thereof, then polyethylene with vinyl acetate, vinyl alcohol or acrylic acid, such as, for example, ionomer resins, such as copolymers of ethylene, of acrylic acid, of methacrylic acid, of acrylic esters, tetrafluoroethylene or polypropylene, in addition random copolymers, block copolymers or olefin polymer/elastomer blends. The polyolefin materials can also comprise cycloolefins as monomer of a homopolymer or of copolymers.
[0080] Preference is given to high density polyethylenes and to
polypropylenes, and also to ionomers, for example known under the trade name Surlyn and sold by the company Dupont de Nemours.
[0081] Examples of polyamides (PA) for the polymeric film are composed,
for example, of polyamide 6, ε-caprolactam homopolymer (polycaprolactam); polyamide 11; polyamide 12, ω-lauryllactam homopolymer (polylauryllactam); polyamide 6,6, homopolycondensate of hexamethylenediamine and of adipic acid (poly(hexamethylene adipamide)); polyamide 6,10, homopolycondensate of hexamethylenediamine and of sebacic acid (poly(hexa-methylene sebacamide); polyamide 6,12, homopolycondensate of hexamethylenediamine and of dodecanedioic acid (poly(hexamethylene dodecanamide)) or polyamide 6-3-T,
homopolycondensate of trimethylhexamethylenediamine and of terephthalic acid
(poly(trimethylhexamethylene terephthalamide)), and blends thereof.
[0082] The polyamide sheets are drawn monoaxially or biaxially (oPA).
[0083] Examples of polystyrenes for the polymeric film are composed, for
example, of oriented polystyrene, in particular mono- or biaxially oriented polystyrene, which may be produced by stretching extruded polystyrene film or polystyrene copolymerized with butadiene.
[0084] Preferentially, the sheet of polymeric film is chosen from
poly(alkylene terephthalate) and polyolefins, and more preferentially from
poly(ethylene terephthalate), polyethylene and ionomers, such as copolymer of
polyethylene and methacrylic acid, and polystyrene such as oriented polystyrene.
[0085] The thickness of polymeric films ranges from 60 µm to 200 µm and
preferably from 80 µm to 140 µm.
[0086] The device, according to embodiments herein, comprises a first
composition and a second composition. The combination of the first composition and second composition, as disclosed herein, achieves improved cosmetic properties such as uniform color delivery, long lasting effect, improved color effect, such as intensity, chromaticity, selectivity, etc while having a shorter pause time. The pause time generally varies between 30 to 60 mins. Embodiments herein achieve a shorter or reduced pause time of less than 10 mins, in the range of 5 to 10 min. Therefore, the embodiments herein, achieve improved cosmetic properties such as uniform color delivery, long lasting, improved color, etc. in about 5 to 10 mins.
[0087] The first composition and second composition, according to
embodiments herein, have rheological properties that facilitate improved cosmetic properties such as uniform color delivery, even color tone, efficient color delivery, good conditioning effect, and creamy consistency having good user feel. The compositions, are capable of being received and applied on keratin fibres by hand, preferably using gloves, of a user. Thus, it achieves application of the compositions without the need for brushes, spatula, bowls, etc, thereby contributing to user convenience.
[0088] In an embodiment, the device contains a first composition and a
second composition, wherein the first composition comprises at least one oxidative dye, at least one first surfactant, and at least one fatty compound different from fatty acids; and the second composition comprises at least one oxidizing agent, and at least one second surfactant.
[0089] In another embodiment, the device comprises a first composition
and a second composition, wherein the first composition comprises at least one oxidative dye, at least one first surfactant, at least one fatty compound different from fatty acids, and at least one fatty acid; and the second composition comprises at least one oxidizing agent, and at least one second surfactant.
[0090] In an embodiment, the device comprises a first composition and a
second composition, wherein the first composition comprises at least one oxidative dye, at least one first surfactant, at least one fatty compound different from fatty acids, at least one fatty acid, and at least one polymer selected from non-ionic associative polymer, amphoteric polymer, or combinations thereof; and the second composition comprises at least one oxidizing agent, and at least one second surfactant.
[0091] In another embodiment, the device comprises a first composition
and a second composition, wherein the first composition comprises at least one oxidative dye, the total amount of oxidative dye(s) in the first composition ranging from 0.0002% to 20% by weight of the first composition; at least one first surfactant, the total amount of first surfactant in the first composition ranging from 0.1 to 20% by weight of the first composition; and at least one fatty compound different from fatty acids; and the second composition comprises at least one oxidizing agent, and at least one second surfactant.
First composition
[0092] Embodiments herein include a first composition comprising at least
one oxidative dye, at least one first surfactant, and at least one fatty compound different from fatty acids. The first composition, according to embodiments herein, may further, optionally include other additives such as at least one fatty acid or its salts, vitamins, fragrances, adjuvants, dispersants, film-forming agents, ceramides,
preserving agents, opacifiers, antioxidants, penetrants, sequestrants, solvents, etc. The first composition, according to embodiments herein, is an emulsion, preferably an oil-in-water emulsion.
Oxidative dye
[0093] Embodiments of the first composition include at least one oxidative
dye. The oxidative dye, according to embodiments herein, includes at least one
oxidation base and at least one oxidation coupler. Oxidation bases are generally
colorless or weakly colored compounds which when mixed with oxidizing
compounds give rise to colored compounds or dye. Further, the color shades
obtained with such oxidation bases can be varied by combining them with oxidation
couplers or color modifiers. The first composition, according to embodiments
herein, may include one or more oxidation bases and couplers.
[0094] The oxidation bases, according to embodiments herein, may be
selected from para-phenylenediamines, bis(phenyl)alkylenediamines, para-aminophenols, ortho-aminophenols, heterocyclic bases, or their addition salts thereof, or combinations thereof.
[0095] The para-phenylenediamines that may be used include, for example,
para-phenylenediamine, para-tolylenediamine, 2-chloro-para-phenylenediamine,
2,3-dimethyl-para-phenylenediamine, 2,6-dimethyl-para-phenylenediamine, 2,6-
diethyl-para-phenylenediamine, 2,5-dimethyl-para-phenylenediamine, N,N-
dimethyl-para-phenylenediamine, N,N-diethyl-para-phenylenediamine, N,N-
dipropyl-para-phenylenediamine, 4-amino-N,N-diethyl-3-methylaniline, N,N-
bis(p-hydroxyethyl)-para-phenylenediamine, 4-N,N-bis(p-hydroxyethyl)amino-2-
methylaniline, 4-N,N-bis(p-hydroxyethyl)amino-2-chloroaniline, 2-p-
hydroxyethyl-para-phenylenediamine, 2-fluoro-para-phenylenediamine, 2-
isopropyl-para-phenylenediamine, 2-y-hydroxypropyl-para-phenylenediamine, 2-
methoxymethyl-para-phenylenediamine, N-(p-hydroxypropyl)-para-
phenylenediamine, 2-hydroxymethyl-para-phenylenediamine, N,N-dimethyl-3-
methyl-para-phenylenediamine, N,N-(ethyl-p-hydroxyethyl)-para-
phenylenediamine, N-(p,y-dihydroxypropyl)-para-phenylenediamine, N-(4'-
aminophenyl)-para-phenylenediamine, N-phenyl-para-phenylenediamine, 2-p-
hydroxyethyloxy-para-phenylenediamine, 2-p-acetylaminoethyloxy-para-
phenylenediamine, N-(p-methoxyethyl)-para-phenylenediamine, 4-
aminophenylpyrrolidine, 2-thienyl-para-phenylenediamine, 2-p-
hydroxyethylamino-5-aminotoluene, 3-hydroxy-1-(4'-aminophenyl)pyrrolidine, and/or the addition salts thereof with an acid.
[0096] The para-phenylenediamines, that may be used in embodiments
herein, may preferably be selected from para-phenylenediamine, para-
tolylenediamine, 2-isopropyl-para-phenylenediamine, 2-p-hydroxyethyl-para-
phenylenediamine, 2-p-hydroxyethyloxy-para-phenylenediamine, 2,6-dimethyl-
para-phenylenediamine, 2,6-diethyl-para-phenylenediamine, 2,3-dimethyl-para-
phenylenediamine, N,N-bis(p-hydroxyethyl)-para-phenylenediamine, 2-chloro-
para-phenylenediamine, 2-p-acetylaminoethyloxy-para-phenylenediamine, or,
preferably, the addition salts thereof with an acid, or mixtures thereof.
[0097] The bis(phenyl)alkylenediamines that may be used include, for
example, N,N'-bis(p-hydroxyethyl)-N,N'-bis(4'-aminophenyl)-1,3-
diaminopropanol, N,N'-bis-(p-hydroxyethyl)-N,N'-bis(4'-
aminophenyl)ethylenediamine, N,N'-bis(4-aminophenyl)tetramethylenediamine,
N,N'-bis(p-hydroxyethyl)-N,N'-bis(4-aminophenyl)tetramethylenediamine, N,N'-
bis(4-methylaminophenyl)tetramethylenediamine, N,N'-bis(ethyl)-N,N'-bis(4'-
amino-3'-methylphenyl)ethylenediamine, 1,8-bis(2,5-diaminophenoxy)-3,6-
dioxaoctane, and/or the addition salts thereof.
[0098] The para-aminophenols that may be used include, for example, para-
aminophenol, 4-amino-3-methylphenol, 4-amino-3-fluorophenol, 4-amino-3-chlorophenol, 4-amino-3-hydroxymethylphenol, 4-amino-2-methylphenol, 4-amino-2-hydroxymethylphenol, 4-amino-2-methoxymethylphenol, 4-amino-2-aminomethylphenol, 4-amino-2-(p-hydroxyethylaminomethyl)phenol and 4-amino-2-fluorophenol, and/or the addition salts thereof with an acid. In an example, the addition salt is salt of sulphurous acid or sodium metabisulphite salt.
Accordingly, in an embodiment, the oxidation base is a combination of para-aminophenol and sodium metabisulphite.
[0099] The ortho-aminophenols that may be used include, for example, 2-
aminophenol, 2-amino-5-methylphenol, 2-amino-6-methylphenol and 5-
acetamido-2-aminophenol, and/or the addition salts thereof.
[0100] Various heterocyclic bases are known and may be used in
embodiments herein. Examples of such heterocyclic bases include pyridine derivatives, pyrimidine derivatives and pyrazole derivatives.
[0101] Further, the pyridine derivatives, in various embodiments herein,
may be selected from the compounds as described, for example, in patents GB 1026978 and/or GB 1153196, including 2,5-diaminopyridine, 2-(4-methoxyphenyl)amino-3-aminopyridine, 3,4-diaminopyridine, and/or the addition salts thereof.
[0102] The pyridine derivatives that maybe used, in some embodiments
herein, include 3-aminopyrazolo[1,5-a]pyridine oxidation bases or addition salts
thereof described, for example, in patent application FR 2801308. Examples of
such bases include pyrazolo[1,5-a]pyrid-3-ylamine, 2-acetylaminopyrazolo[1,5-
a]pyrid-3-ylamine, 2-morpholin-4-ylpyrazolo[1,5-a]pyrid-3-ylamine, 3-
aminopyrazolo[1,5-a]pyridine-2-carboxylic acid, 2-methoxypyrazolo[1,5-a]pyrid-
3-ylamine, (3-aminopyrazolo[1,5-a]pyrid-7-yl)methanol, 2-(3-aminopyrazolo[1,5-
a]pyrid-5-yl)ethanol, 2-(3-aminopyrazolo[1,5-a]pyrid-7-yl)ethanol, (3-
aminopyrazolo[1,5-a]pyrid-2-yl)methanol, 3,6-diaminopyrazolo[1,5-a]pyridine,
3,4-diaminopyrazolo[1,5-a]pyridine, pyrazolo[1,5-a]pyridine-3,7-diamine, 7-
morpholin-4-ylpyrazolo[1,5-a]pyrid-3-ylamine, pyrazolo[1,5-a]pyridine-3,5-
diamine, 5-morpholin-4-ylpyrazolo[1,5-a]pyrid-3-ylamine, 2-[(3-
aminopyrazolo[1,5-a]pyrid-5-yl)(2-hydroxyethyl)amino]ethanol, 2-[(3-
aminopyrazolo[1,5-a]pyrid-7-yl)(2-hydroxyethyl)amino]ethanol, 3-
aminopyrazolo[1,5-a]pyridin-5-ol, 3-aminopyrazolo[1,5-a]pyridin-4-ol, 3-
aminopyrazolo[1,5-a]pyridin-6-ol and 3-aminopyrazolo[1,5-a]pyridin-7-ol, and/or
the addition salts thereof.
[0103] Embodiments herein may further include pyrimidine derivatives
selected from the compounds described, for example, in the patents DE 2359399; JP 88-169571; JP 05-63124; EP 0770375 or patent application WO 96/15765, including 2,4,5,6-tetraaminopyrimidine, 4-hydroxy-2,5,6-triaminopyrimidine, 2-hydroxy-4,5,6-triaminopyrimidine, 2,4-dihydroxy-5,6-diaminopyrimidine, 2,5,6-triaminopyrimidine, their addition salts and their tautomeric forms, when a tautomeric equilibrium exists.
[0104] The pyrazole derivatives that may be used, in various embodiments
herein, may be selected from, for example, the compounds described in the patents
DE 3843892, DE 4133957 or patent applications WO 94/08969, WO 94/08970,
FR-A-2 733 749 or DE 195 43 988, including for example 4,5-diamino-1-methyl-
pyrazole, 4,5-diamino-1-(p-hydroxyethyl)pyrazole, 3,4-diaminopyrazole, 4,5-
diamino-1-(4'-chlorobenzyl)pyrazole, 4,5-diamino-1,3-dimethylpyrazole, 4,5-
diamino-3-methyl-1-phenylpyrazole, 4,5-diamino-1-methyl-3-phenylpyrazole, 4-
amino-1,3-dimethyl-5-hydrazinopyrazole, 1-benzyl-4,5-diamino-3-methyl-
pyrazole, 4,5-diamino-3-tert-butyl-1-methylpyrazole, 4,5-diamino-1-tert-butyl-3-
methylpyrazole, 4,5-diamino-1-(p-hydroxyethyl)-3-methylpyrazole, 4,5-diamino-
1-ethyl-3-methylpyrazole, 4,5-diamino-1-ethyl-3-(4'-methoxyphenyl)pyrazole,
4,5-diamino-1-ethyl-3-hydroxymethylpyrazole, 4,5-diamino-3-hydroxymethyl-1-
methylpyrazole, 4,5-diamino-3-hydroxymethyl-1-isopropylpyrazole, 4,5-diamino-
3-methyl-1-isopropylpyrazole, 4-amino-5-(2'-aminoethyl)amino-1,3-
dimethylpyrazole, 3,4,5-triaminopyrazole, 1-methyl-3,4,5-triaminopyrazole, 3,5-
diamino-1-methyl-4-methylaminopyrazole, 3,5-diamino-4-(p-hydroxyethyl)-
amino-1-methylpyrazole, and their addition salts. 4,5-diamino-1-(p-methoxyethyl)-pyrazole may also be used.
[0105] The pyrazole derivatives that may also be used, in various
embodiments herein, include diamino-N,N-dihydropyrazolopyrazolones and
especially those described in patent application FR-A-2 886 136, including 2,3-
diamino-6,7-dihydro- 1H, 5H-pyrazolo[1,2-a]pyrazol-1 -one, 2-amino-3 -
ethylamino-6,7-dihydro-1H,5H-pyrazolo[1,2-a]pyrazol-1-one, 2-amino-3-
isopropylamino-6,7-dihydro-1H,5H-pyrazolo[1,2-a]pyrazol-1-one, 2-amino-3-
(pyrrolidin-1-yl)-6,7-dihydro-1H,5H-pyrazolo[1,2-a]pyrazol-1-one, 4,5-diamino-
1,2-dimethyl-1,2-dihydropyrazol-3-one, 4,5-diamino-1,2-diethyl-1,2-
dihydropyrazol-3-one, 4,5-diamino-1,2-di-(2-hydroxyethyl)-1,2-dihydropyrazol-3-
one, 2-amino-3-(2-hydroxyethyl)amino-6,7-dihydro-1H,5H-pyrazolo[1,2-
a]pyrazol-1-one, 2-amino-3-dimethylamino-6,7-dihydro-1H,5H-pyrazolo[1,2-a]pyrazol-1-one, 2,3-diamino-5,6,7,8-tetrahydro-1H,6H-pyridazino[1,2-a]pyrazol-1 -one, 4-amino-1,2-diethyl-5-(pyrrolidin-1 -yl)-1,2-dihydropyrazol-3 -one, 4-amino-5-(3-dimethylaminopyrrolidin-1-yl)-1,2-diethyl-1,2-dihydropyrazol-3-one, 2,3-diamino-6-hydroxy-6,7-dihydro-1H,5H-pyrazolo[1,2-a]pyrazol-1-one, 2,3-diamino-6,7-dihydro-1H,5H-pyrazolo[1,2-a]pyrazol-1-one and/or, preferably, a salt thereof, or mixture thereof.
[0106] In some embodiments, the heterocyclic base is one or more selected
from 4,5-diamino-1-(p-hydroxyethyl)pyrazole, 2,3-diamino-6,7-dihydro-1H,5H-pyrazolo[1,2-a]pyrazol-1-one, and/or a salt thereof.
[0107] In an embodiment, the oxidation base comprises a combination of at
least one p-aminophenol, or its salt thereof, selected from para-aminophenol, 4-
amino-3-methylphenol, 4-amino-3-fluorophenol, 4-amino-3-chlorophenol, 4-
amino-3-hydroxymethylphenol, 4-amino-2-methylphenol, 4-amino-2-
hydroxymethylphenol, 4-amino-2-methoxymethylphenol, 4-amino-2-
aminomethylphenol, 4-amino-2-(p-hydroxyethylaminomethyl)phenol and 4-
amino-2-fluorophenol, wherein the salt is an addition salts with an acid; and at least
one p-phenylenediamine, or salt thereof, selected from para-phenylenediamine,
para-tolylenediamine, 2-isopropyl-para-phenylenediamine, 2-p-hydroxyethyl-
para-phenylenediamine, 2-p-hydroxyethyloxy-para-phenylenediamine, 2,6-
dimethyl-para-phenylenediamine, 2,6-diethyl-para-phenylenediamine, 2,3-
dimethyl-para-phenylenediamine, N,N-bis(p-hydroxyethyl)-para-
phenylenediamine, 2-chloro-para-phenylenediamine, 2-p-acetylaminoethyloxy-para-phenylenediamine, wherein the salt is, preferably, an addition salts with an acid.
[0108] In an embodiment, the oxidation base is selected from para-
aminophenol, p-aminophenol and sodium metabisulfite, p-phenylenediamine, or mixtures thereof.
[0109] Further, the embodiments herein include oxidation couplers.
Various couplers are generally known and may be used in embodiments herein. The couplers, according to embodiments herein, include meta-phenylenediamines, meta-aminophenols, meta-diphenols, naphthalene-based couplers, heterocyclic couplers and/or the addition salts thereof.
[0110] Examples of couplers include 1,3-dihydroxybenzene, 1,3-
dihydroxy-2-methylbenzene, 4-chloro-1,3-dihydroxybenzene, 2,4-diamino-1-(ß-
hydroxyethyloxy)benzene, 2-amino-4-(ß-hydroxyethylamino)-1 -methoxybenzene,
1,3-diaminobenzene, 2,4-diaminophenoxyethanol, 1,3-bis(2,4-diaminophenoxy)-
propane, 3-ureidoaniline, 3-ureido-1-dimethylaminobenzene sesamol, 1-ß-
hydroxyethylamino-3,4-methylenedioxybenzene, a-naphthol, 2-methyl-1-
naphthol, 6-hydroxyindole, 4-hydroxyindole, 4-hydroxy-N-methylindole, 2-
amino-3-hydroxypyridine, 6-hydroxybenzomorpholine, 3,5-diamino-2,6-
dimethoxypyridine, 1-N-(ß-hydroxyethyl)amino-3,4-methylenedioxybenzene, 2,6-bis(ß-hydroxyethylamino)toluene, 6-hydroxyindoline, 2,6-dihydroxy-4-methyl-pyridine, 1-H-3-methylpyrazol-5-one, 1-phenyl-3-methylpyrazol-5-one, 2,6-dimethylpyrazolo-[1,5-b]-1,2,4-triazole, 2,6-dimethyl-[3,2-c]-1,2,4-triazole and 6-methylpyrazolo[1,5-a]-benzimidazole and/or the addition salts thereof with an acid, or mixtures thereof.
[0111] In an embodiment, the coupler is selected from 1,3-dihydroxy-
benzene, m-aminophenol, 2,4-diaminophenoxyethanol and/or salts thereof, or mixtures thereof.
[0112] In some embodiments, the addition salts of the oxidation bases
and/or couplers are especially chosen from the addition salts with an acid such as the hydrochlorides, hydrobromides, sulfates, citrates, succinates, tartrates, lactates, tosylates, benzenesulfonates, phosphates and acetates.
[0113] The oxidation base(s), according to various embodiments herein,
each may, generally, be present in an amount ranging from 0.0001% to 10% by
weight, relative to the total weight of the first composition. In an embodiment, the total amount of oxidation base is an amount ranging from 0.0001% to 10% by weight, relative to the total weight of the first composition. In another embodiment, the first composition comprises the oxidation base in an amount ranging from 0.005% to 5% by weight, relative to the total weight of the first composition. In a preferrable embodiment, the amount of oxidation bases ranges from 0.005% to 5% by weight, relative to the total weight of the first composition.
[0114] The coupler(s), according to embodiments herein, each may,
generally, be present in an amount ranging from 0.0001% to 10% by weight, relative to the total weight of the first composition. In an embodiment, the total amount of oxidation coupler is an amount ranging from 0.0001% to 10% by weight, relative to the total weight of the first composition. In a preferable embodiment, the composition comprises the oxidation coupler in an amount ranging from 0.005% to 5% by weight, relative to the total weight of the first composition.
[0115] The composition, in some embodiments, may further include one or
more direct dyes, preferably selected from cationic or nonionic, synthetic or natural direct dyes.
[0116] Examples of suitable direct dyes include nitrobenzene dyes; azo
direct dyes; azomethine direct dyes; methine direct dyes; azacarbocyanin direct dyes, such as tetraazacarbocyanins (tetraazapentamethines); quinone, particularly anthraquinone, naphthoquinone or benzoquinone direct dyes; azine direct dyes; xanthene direct dyes; triarylmethane direct dyes; indoamine direct dyes; indigoid direct dyes; phthalocyanine direct dyes; porphyrin direct dyes; natural direct dyes; or mixtures thereof. In some embodiments, the direct dyes are selected from azo; methine; carbonyl; azine; nitro (hetero)aryl; tri(hetero)arylmethane; porphyrin; phthalocyanine; natural direct dyes; and/or mixtures thereof.
[0117] The direct dye(s), according to embodiments herein, may be present
in an amount ranging from 0.0001% to 10% by weight, relative to the total weight of the first composition. In an embodiment, the total amount of direct dye is an amount ranging from 0.005% to 5% by weight, relative to the total weight of the composition. In a preferable embodiment, the composition comprises the direct dye
in an amount ranging from 0.005% to 5% by weight, relative to the total weight of the composition.
[0118] The oxidation bases and couplers may be in suitable amounts such
that the total amount of oxidative dye is in the range of 0.0002% to 20% by weight, relative to the total weight of the first composition. In an embodiment, the total amount of oxidative dye in the first composition ranges from 0.0002% to 20% by weight, relative to the total weight of the first composition, preferably in a range of 0.0001 to 10% by weight, relative to the total weight of the first composition.
Fatty compounds)
[0119] Embodiments of the first composition further includes at least one
fatty compound different from fatty acid. The fatty compounds, according to
embodiments herein, include liquid fatty compounds, solid fatty compounds, and
their mixtures.
[0120] The fatty compounds, according to embodiments herein, may be
selected from oil of plant origin, oil having hydrocarbons comprising more than 16
carbon atoms, or combinations thereof. Examples include, but are not limited to,
mineral oil and olive oil.
[0121] In other embodiment, the fatty compounds may further include C6-
C16 hydrocarbons, hydrocarbons containing more than 16 carbon atoms, non-
silicone oils of animal origin, triglycerides of plant or synthetic origin, fluoro oils,
fatty alcohols, esters of fatty acids and/or of fatty alcohols other than triglycerides,
non-silicone waxes other than solid fatty alcohols and solid synthetic esters, and
silicones, and mixtures thereof.
[0122] The linear or branched hydrocarbons of inorganic or synthetic origin
containing more than 16 carbon atoms, for use in various embodiments herein, may
preferably be selected from liquid paraffins or liquid petroleum jelly, petroleum
jelly, polydecenes, hydrogenated polyisobutene such as Parleam®, or mixtures
thereof.
[0123] The oil of plant origin, for use in various embodiments herein, may
be selected from liquid non-silicone wax(es); triglycerides of plant; or mixtures
thereof.
[0124] The liquid non-silicone wax(es) refers to non-silicone wax(es) other
than solid fatty alcohols and solid synthetic esters. The liquid non-silicone wax(es),
according to embodiments herein, may be selected from carnauba wax, candelilla
wax, esparto wax, paraffin wax, ozokerite, plant waxes, such as olive tree wax, rice
wax, hydrogenated jojoba wax or absolute flower waxes, for example blackcurrant
blossom essential wax sold by Bertin (France).
[0125] The triglycerides of plant, for use in various embodiments herein,
are preferably chosen from liquid fatty acid triglycerides comprising from 8 to 30
carbon atoms, for instance heptanoic or octanoic acid triglycerides, or alternatively,
more particularly from those present in plant oils, for instance sunflower oil, corn
oil, soybean oil, marrow oil, grapeseed oil, sesame seed oil, hazelnut oil, apricot oil,
macadamia oil, arara oil, castor oil, avocado oil, jojoba oil, shea butter oil or
synthetic caprylic/capric acid triglycerides, for example those sold by Stéarineries
Dubois or those sold under the reference Miglyol® 810, 812 and 818 by the
company Dynamit Nobel, and mixtures thereof.
[0126] In some embodiments, the fatty compound comprises at least one
liquid fatty compound and at least one fatty alcohol, wherein fatty alcohol is solid
at room temperature and at atmospheric pressure, preferably selected from cetyl
alcohol (1-hexadecanol), stearyl alcohol (1-octadecanol), or mixture thereof for
example cetylstearyl alcohol.
[0127] Preferably, the first composition comprises at least one solid fatty
compound, more preferably selected from fatty alcohols.
[0128] Preferably, the first composition comprises at least one liquid fatty
compound, more preferably selected from oils having hydrocarbons comprising
more than 16 carbon atoms, triglycerides of plant; or mixtures thereof.
[0129] Preferably, the first composition comprises at least one fatty
compound, more preferably selected from oils having hydrocarbons comprising
more than 16 carbon atoms, triglycerides of plants, fatty alcohols, or mixtures
thereof.
[0130] The fatty compound(s), different from fatty acids, according to
embodiments herein, may be present in a total amount of at least 1%, preferably at
least 5%, more preferably at least 10% by weight relative to the total weight of the first composition. In an embodiment, the first composition comprises the fatty compound(s) different from fatty acids in a total amount ranging from 1 to 30%, preferably from 5% to 25 % by weight, preferably 10% to 20% by weight, relative to the weight of the first composition.. Surfactants
[0131] Embodiments of the first composition include at least one surfactant.
The surfactants, according to embodiments herein, may be selected from anionic, cationic, amphoteric and non-ionic surfactants, preferably from non-ionic surfactants.
[0132] The non-ionic surfactants may be selected from alkoxylated
including monooxyalkylated and/or polyoxyalkylated, nonionic surfactants; monoglycerolated and/or polyglycerolated nonionic surfactants, or combinations thereof. Accordingly, in an embodiment, the surfactant is a non-ionic surfactant selected from alkoxylated C8-C30 alcohols, alkoxylated fatty acid C8-C30 esters of sorbitan, or combinations thereof.
[0133] In an embodiment, the composition comprises ethoxylated non-ionic
surfactants. The C8-C30 alcohol, in various embodiments herein, include fatty alcohols which are linear or branched, saturated or unsaturated alcohols containing from 8 to 30 carbon atoms.
[0134] In some embodiments, the non-ionic surfactants include alkoxylated
(C8-C24)alkylphenols; saturated or unsaturated, linear or branched, alkoxylated C8-C30 alcohols; saturated or unsaturated, linear or branched, alkoxylated C8-C30 amides; esters of saturated or unsaturated, linear or branched, C8-C30 acids and of polyethylene glycols; condensates of ethylene oxide and/or of propylene oxide, or mixtures thereof.
[0135] The esters of fatty acids and/or of fatty alcohols, in various
embodiments herein, include esters of saturated or unsaturated, linear C1-C26 or branched C3-C26 aliphatic monoacids or polyacids and of saturated or unsaturated, linear C1-C26 or branched C3-C26 aliphatic monoalcohols or polyalcohols, the total
carbon number of the esters being greater than or equal to 6 and more
advantageously greater than or equal to 10.
[0136] In various embodiments herein, the non-ionic surfactant include
alkoxylated C8-C30 alcohols comprising a number of moles of alkylene oxide, for
example ethylene oxide and/or propylene oxide. In a preferable embodiment, the
non-ionic surfactant is alkoxylated, preferably ethoxylated, non-ionic surfactants
comprising at least one alkoxylated, preferably ethoxylated, C8-C30 alcohol
comprising from 1 to 100 mol, preferably from 1 to 50 mol, more preferably 2 to
30 mol, of alkylene oxide, preferably ethylene oxide.
[0137] In an embodiment, the non-ionic surfactant is selected from
ethoxylated C8-C30 alcohols comprising from 1 to 100 mol of ethylene oxide; and
alkoxylated fatty acid C8-C30 esters of sorbitan with or without 1 to 100 mol of
ethylene oxide. Examples of alkoxylated fatty acid C8-C30 esters of sorbitan include,
but not limited to, polysorbate 21, polysorbate 60, or mixtures thereof.
[0138] Embodiments herein include monoglycerolated or polyglycerolated
nonionic surfactants. In some embodiments, the monoglycerolated or
polyglycerolated nonionic surfactants include monoglycerolated or
polyglycerolated C8-C30 alcohols.
[0139] In particular, the monoglycerolated or polyglycerolated C8-C30
alcohols include those of the formula (III):
RO-[CH2-CH(CH2OH)-O]m-H Formula (III)
wherein, R represents a linear or branched C8-C30 and preferably C8-C30 alkyl or alkenyl radical, and m represents a number ranging from 1 to 30 and preferably from 1 to 10.
[0140] Examples of suitable non-ionic surfactants include lauryl alcohol
having 4 mol of glycerol (INCI name: Polyglyceryl-4 Lauryl Ether), lauryl alcohol having 1.5 mol of glycerol, oleyl alcohol having 4 mol of glycerol (INCI name: Polyglyceryl-4 Oleyl Ether), oleyl alcohol having 2 mol of glycerol (INCI name: Polyglyceryl-2 Oleyl Ether), cetearyl alcohol having 2 mol of glycerol, cetearyl alcohol having 6 mol of glycerol, oleocetyl alcohol having 6 mol of glycerol, and
octadecanol having 6 mol of glycerol. Examples of surfactants include, but is not
limited to, laureth-12, laureth-4, oleth-20, ceteareth-25 and ceteareth-33.
[0141] The alcohol may represent a mixture of alcohols in the same way
that the value of m represents a statistical value, which means that, in a commercial product, several species of polyglycerolated fatty alcohols may coexist in the form of a mixture.
[0142] In an embodiment, the monoglycerolated or polyglycerolated
alcohol, is preferably C8/C10 alcohol containing 1 mol of glycerol, the C10/C12 alcohol containing 1 mol of glycerol and the C12 alcohol containing 1.5 mol of glycerol.
[0143] The non-ionic surfactant(s), according to embodiments herein, may
be present in an amount ranging from 0.1 to 20% by weight, relative to the total
weight of the first composition. In an embodiment, the first composition comprises
total non-ionic surfactants in an amount ranging from 0.1 to 20% by weight,
preferably 0.5% to 15% by weight, relative to the total weight of the first
composition. In a preferable embodiment, the amount of non-ionic surfactant
ranges from 1% to 10% by weight, relative to the total weight of the composition.
[0144] Preferably, the first composition comprises total non-ionic
surfactants selected from ethoxylated C8-C30 alcohols comprising from 1 to 100 mol of ethylene oxide in an amount ranging from 0.1 to 20% by weight, preferably 0.5% to 15% by weight, relative to the total weight of the first composition. In a preferable embodiment, the amount of non-ionic surfactant ranges from 1% to 10% by weight, relative to the total weight of the first composition.
Polymers
[0145] Embodiments of the first composition may include at least one
polymer. The polymer, according to embodiments herein, may be selected from non-ionic associative polymers and amphoteric polymers. Accordingly, embodiments herein include non-ionic associative polymers. The non-ionic associative polymer, in various embodiments herein, may be selected from celluloses, or cellulose derivatives. The cellulose derivatives include modified
hydroxyethylcelluloses, modified hydroxypropylmethylcelluloses, or combinations thereof.
[0146] The modified hydroxyethylcelluloses, in some embodiments herein,
include hydroxyethylcelluloses modified with groups comprising at least one fatty chain, such as linear or branched alkyl, linear or branched arylalkyl or linear or branched alkylaryl groups, or mixtures thereof, and in which the linear or branched alkyl groups are preferably C8-C22, for example such as products sold under the reference Natrosol Plus Grade 330 CS® (C16 alkyl) by the company Aqualon, Polysurf 67 CS (cetylhydroxyethylcellulose) by the company Ashland, or Bermocoll EHM 100® by the company Berol Nobel.
[0147] The modified hydroxyethylcelluloses, in other embodiments,
include hydroxyethylcelluloses modified with alkylphenyl polyalkylene glycol ether groups, for example such as products sold under the reference Amercell Polymer HM-1500® (polyethylene glycol (15) nonylphenyl ether) by the company Amerchol.
[0148] The modified hydroxypropylmethylcelluloses, according to
embodiments herein, include hydroxypropylmethylcelluloses modified with groups with linear or branched C8-C22 alkyl groups, for example such as products sold under the reference Sangelose 60L (INCI name: hydroxypropyl methylcellulose stearoxy ether) by the company Daido Chemical.
[0149] The non-ionic associative polymer(s), according to embodiments
herein, may be present in an amount ranging from 0.005% to 5% by weight. In an embodiment, the total amount of non-ionic associative polymer is an amount ranging from 0.005% to 5% by weight, relative to the total weight of the first composition. In a preferrable embodiment, the first composition comprises non-ionic associative polymer in a total amount ranging from 0.01% to 2% by weight, relative to the total weight of the first composition.
[0150] Embodiments herein may further include amphoteric polymers. The
amphoteric polymers, according to embodiments herein, include copolymers based on acrylic acid and quaternary ammonium salt. In a preferable embodiment, the amphoteric polymer is a copolymer of (meth)acrylic acid, and
dialkyldiallylammonium salt such as dimethyldiallyl ammonium chloride
(DMDAAC), diethyldiallyl ammonium chloride (DEDAAC), or mixtures thereof.
[0151] In an embodiment, the amphoteric polymer is a copolymer of
(meth)acrylic acid and dimethyldiallylammonium chloride. Examples of suitable amphoteric polymers includes polyquaternium-22 sold under the reference Merquat 280, by Nalco.
[0152] The amphoteric polymers(s), according to embodiments herein, may
be present in an amount ranging from 0.01% and 5% by weight, relative to the composition. In an embodiment, the total amount of amphoteric polymers is an amount ranging from 0.01% and 5% by weight, relative to the first composition. In a preferable embodiment, the first composition comprises 0.05% to 3% by weight, more preferably 0.1% to 2% by weight, relative to the first composition.
Fatty acid
[0153] Embodiments of the first composition may include at least one fatty
acid. The fatty acids, according to embodiments herein, comprises a saturated or unsaturated, linear or branched alkyl chain having at least 8 carbon atoms, preferably from C10 to C24 and preferably C12-C20 fatty acids, more preferably C12-C18, fatty acids. The fatty acids may be chosen from solid acids, liquid fatty acids and mixtures thereof.
[0154] For the purposes of the present invention, the term "solid fatty acid"
means a fatty acid having a melting point above 25°C, preferably above or equal to 28°C, more preferentially above or equal to 30°C at atmospheric pressure
(1.013×105 Pa).
[0155] The solid fatty acids that can be used in the present invention are
notably chosen from myristic acid, cetylic acid (or palmitic acid), arachidic acid,
stearic acid, lauric acid, behenic acid, 12-hydroxystearic acid, and mixtures thereof.
[0156] Particularly preferably, the solid fatty acid(s) are chosen from lauric
acid, myristic acid, palmitic acid (also referred to as cetylic acid) and stearic acid.
[0157] For the purposes of the present invention, the term "liquid fatty acid"
means a fatty acid having a melting point below or equal to 25°C, preferably below or equal to 20°C at atmospheric pressure (1.013×105 Pa).
[0158] The liquid fatty acid(s) according to the invention may be chosen
from oleic acid, linoleic acid, arachidonic acid, isostearic acid, isostearic acid,
isopalmitic acid, and mixtures thereof.
[0159] Preferably, the fatty acid(s) is/are chosen from myristic acid,
palmitic acid, stearic acid and mixtures thereof.
[0160] When present, the fatty acid(s), according to embodiments herein,
may be present in an amount ranging from 0.05 to 15 % by weight, preferably 0.1
to 10% by weight, more preferably 0.2 to 5 % by weight and even more preferably
0.2 to 3 % by weight, relative to the total weight of the composition. In an
embodiment, the total amount of fatty acid(s) is an amount ranging from 0.05 to 15
% by weight, relative to the total weight of the first composition.
[0161] In an embodiment, the fatty acid(s) is in an amount of at least 0.15%
by weight, preferably at least 0.2% by weight, relative to the total weight of the first
composition.
Alkaline agent
[0162] Embodiments of the first composition include at least one alkaline
agent. The alkaline agent, according to embodiments herein, may be selected from
mineral, organic or hybrid alkaline agents, or mixtures thereof.
[0163] The mineral alkaline agents, in embodiments herein, may preferably
be selected from aqueous ammonia, alkali metal carbonates, alkali metal
bicarbonates, or mixtures thereof. Example of suitable alkaline agents include
mineral sodium carbonates, potassium carbonates, sodium bicarbonates, potassium
bicarbonates, sodium hydroxide and potassium hydroxide.
[0164] The organic alkaline agents, in embodiments herein, may preferably
be selected from organic amines with a pKb at 25°C of less than 12, preferably less
than 10, and more preferably less than 6. It should be noted that it is the pKb
corresponding to the function of highest basicity.
[0165] The hybrid alkaline agents, in embodiments herein, may include the
salts of the organic amines with acids such as carbonic acid or hydrochloric acid.
[0166] In an embodiment, the alkaline agent is an organic alkaline agent
preferably selected from alkanolamines, oxyethylenated and/or oxypropylenated
ethylenediamines, amino acids, compounds of formula (I), or mixtures thereof.
[0167] The compounds of formula (I) are represented below:
wherein, W is a C1-C6 alkylene residue optionally substituted with a hydroxyl group or a C1-C6 alkyl radical; Rx, Ry, Rz and Rt, may be identical or different, represent a hydrogen atom or a C1-C6 alkyl, C1-C6 hydroxyalkyl or C1-C6 aminoalkyl radical. Examples of such amines include 1,3-diaminopropane, 1,3-diamino-2-propanol, spermine and spermidine.
[0168] In various embodiments, alkanolamine is selected from
monoalkanolamines, dialkanolamines, trialkanolamines, or mixtures thereof, comprising one to three identical or different C1-C4 hydroxyalkyl radicals are particularly.
[0169] Examples of suitable alkanolamines include monoethanolamine,
diethanolamine, triethanolamine, monoisopropanolamine, diisopropanolamine, N-
dimethylaminoethanolamine, 2-amino-2-methyl-1-propanol, triisopropanolamine,
2-amino-2-methyl-1,3-propanediol, 3-amino-1,2-propanediol, 3-dimethylamino-
1,2-propanediol and tris(hydroxymethylamino)methane. In an embodiment, the
alkaline agent is selected from monoethanolamine, diethanolamine,
triethanolamine, or mixtures thereof.
[0170] The amino acids that may be used, in various embodiments herein,
may be of natural or synthetic origin, in their L, D or racemic form, or mixtures thereof, and comprise at least one acid function selected more particularly from carboxylic acid, sulfonic acid, phosphonic acid or phosphoric acid functions. The amino acids may be in neutral or ionic form.
[0171] Examples of suitable amino acids include aspartic acid, glutamic
acid, alanine, arginine, ornithine, citrulline, asparagine, carnitine, cysteine,
glutamine, glycine, histidine, lysine, isoleucine, leucine, methionine, N-
phenylalanine, proline, serine, taurine, threonine, tryptophan, tyrosine and valine.
[0172] The amino acids, in some embodiments, may further include basic
amino acids comprising an additional amine function optionally included in a ring or in a ureido function.
[0173] Such basic amino acids are preferably selected from those of
formula (II) below:
wherein, R denotes a group selected from (a), (b), (c), (d) and (e):
(a) (b) -(CH2)3NH2
(c) -(CH2)2NH2 (d) -(CH2)2NHCONH2
(e)
[0174] Examples of the amino acids corresponding to formula (II) are
histidine, lysine, arginine, ornithine and citrulline.
[0175] Further, the organic amine, in some embodiments, may be selected
from organic amines of heterocyclic type. Examples of suitable heterocyclic type amines include histidine, pyridine, piperidine, imidazole, triazole, tetrazole and benzimidazole. The organic amine may also be selected from amino acid dipeptides. Examples of suitable amino acid dipeptides include carnosine, anserine and baleine.
[0176] The organic amine, in various embodiments herein, may also be
selected from compounds comprising a guanidine function. Examples of suitable organic amines include arginine, creatine, creatinine, 1,1-dimethylguanidine, 1,1-diethylguanidine, glycocyamine, metformin, agmatine, N-amidinoalanine, 3-
guanidinopropionic acid, 4-guanidinobutyric acid and 2-
([amino(imino)methyl]amino)ethane-1-sulfonic acid.
[0177] In some embodiments, the hybrid alkaline agent is selected from
guanidine carbonate, monoethanolamine hydrochloride, or mixtures thereof.
[0178] In an embodiment, the first composition comprises an alkaline agent
selected from at least one alkanolamines, preferably monoethanolamine, aqueous ammonia, or mixtures thereof, most preferably monoethanolamine.
[0179] The alkaline agent(s), according to embodiments herein, may be
present in an amount ranging from 0.01% to 30% by weight relative to the weight of the first composition. In an embodiment, the total amount of alkaline agent is an amount ranging from 0.01% to 30% by weight, relative to the weight of the composition. In an embodiment, the first composition comprises the alkaline agent in an amount ranging from 0.1% to 20% by weight, and preferably from 1% to 10% by weight, relative to the weight of the first composition.
Second composition
[0180] Embodiments herein include a second composition comprising at
least one oxidizing agent and at least one surfactant. The second composition, according to embodiments herein, may further, optionally include additives such as vitamins, fragrances, adjuvants, dispersants, film-forming agents, ceramides, preserving agents, opacifiers, antioxidants, penetrants, sequestrants, solvents, etc. The second composition, according to embodiments herein, is an emulsion, preferably an oil-in-water emulsion.
Oxidizing agent
[0181] Embodiments of the second composition include at least one
oxidizing agent. The oxidizing agents, according to embodiments herein, may be selected from, for example, hydrogen peroxide, urea peroxide, alkali metal bromates or ferricyanides, peroxygenated salts, such as persulfates, perborates, peracids and/or precursors thereof, and percarbonates of alkali metals or alkaline-earth metals. In a preferrable embodiment, the oxidizing agent is hydrogen peroxide.
[0182] The oxidizing agent(s), according to embodiments herein, may be
present in an amount ranging from 0.1% to 40% by weight, relative to the weight of the second composition. In a preferable embodiment, the second composition comprises the oxidizing agent in an amount ranging from 0.5% to 20% by weight, more preferably 1% to 15% by weight, relative to the weight of the second composition.
Surfactants
[0183] Embodiments of the second composition herein include at least one
surfactant. The surfactants for use in the second composition, according to embodiments herein, may be selected from the surfactants previously described herein. In an embodiment, the second composition comprises non-ionic surfactants selected from alkoxylated nonionic surfactants including monooxyalkylated and/or polyoxyalkylated; monoglycerolated and/or polyglycerolated nonionic surfactants, or combinations thereof. In an embodiment, the surfactant is a non-ionic surfactant selected from alkoxylated C8-C30 alcohols, or combinations thereof.
[0184] Accordingly, in an embodiment, the second composition comprises
saturated or unsaturated, linear or branched, acyclic or cyclic, substituted or unsubstituted, nonionic surfactant selected from alkoxylated C8-C30 alcohols, or combinations thereof, wherein said alkoxylated C8-C30 alcohol is ethoxylated C8-C30 alcohol comprising from 1 to 100 mol of ethylene oxide, preferably 1 to 50 mol of ethylene oxide, more preferably 2 to 30 mol of ethylene oxide, wherein said C8-C30 alcohol is selected from lauryl alcohol, oleyl alcohol, cetyl alcohol, stearyl alcohol, behenyl alcohol, cetearyl alcohol, or mixtures thereof. In an embodiment, the surfactant in the second composition is selected from non- alkoxylated cetearyl alcohol, ethoxylated C8-C30 alcohol, wherein the C8-C30 alcohol is a mixture of cetyl and stearyl alcohol; and ethoxylated behenyl alcohol, preferably comprising 2 to 30 mol of ethylene oxide. Examples include, but is not limited to, beheneth-10, ceteareth-25, etc.
[0185] In an embodiment, the second composition comprises total amount
of surfactant(s) ranging from 0.1 to 20% by weight, preferably 0.5% to 15% by weight, relative to the total weight of the second composition. In a preferable
embodiment, the amount of non-ionic surfactant ranges from 1% to 10% by weight, relative to the total weight of the second composition.
Non ionic ether of polyoxyalkylenated fatty alcohol
[0186] In an embodiment the second composition includes at least one
nonionic ether of a polyoxyalkylenated fatty alcohol. The nonionic ether of a polyoxyalkylenated fatty alcohol, according to the embodiments herein, comprises at least one nonionic ether of a polyoxyalkylenated fatty alcohol includes those of formula (IV):
R-(O-Alk)n-OR’ Formula (IV),
and/or optical isomers and/or geometrical isomers thereof,
wherein, R denotes a linear or branched, saturated or unsaturated C10-C30 hydrocarbon-based radical; R’ denotes a linear or branched, saturated or unsaturated C10-C30 hydrocarbon-based radical, which may be substituted with a hydroxyl radical, the hydroxyl preferably being p to the ether function; n is an integer between 1 and 100 inclusive; and Alk represents a linear or branched, preferably linear, (C1-C6)alkylene group such as ethylene or propylene, preferably ethylene.
[0187] In one particular embodiment, the radical Alk of formula (i)
represents a group -CH2-CH2-.
[0188] More particularly, the nonionic ether of formula (IV) is such that R
and R, independently of each other, denote a linear or branched, preferably linear, saturated or unsaturated, preferably saturated, C12-C20 and preferably C14-C18 hydrocarbon-based radical; R possibly being substituted with at least one hydroxyl radical and n denotes an integer greater than or equal to 20, for example ranging from 20 to 100 and preferably 40 to 80. Preferably, the R and R denote an alkyl radical.
[0189] In preferrable embodiments, the nonionic ether of formula (IV) is
such that: R denotes a C16-C18 alkyl radical, which is preferably linear, and R denotes a C14 alkyl radical, which is preferably linear, substituted with an OH group, and n is equal to 60.
[0190] In a preferably embodiment, the nonionic ether of a
polyoxyalkylenated fatty alcohol is of formula (V):
wherein, R is a cetyl or stearyl group with n = 60.
[0191] Such nonionic ethers of a polyoxyalkylenated fatty alcohol are
known, for example, in the CTFA dictionary under the name Ceteareth 60 myristyl glycol or Hydrogenated talloweth 60 myristyl glycol. Examples include commercial available Ceteareth 60 myristyl glycol, such as those sold under the reference Elfacos GT 282 S by Akzo.
[0192] In an embodiment, the nonionic ether(s) of a polyoxyalkylenated
fatty alcohol is(are) in a total amount ranging from 0.001 to 5% by weight, preferably form 0.01 to 1% by weight, more preferably from 0.02 to 0.5% by weight relative to the weight of the second composition.
Fatty compounds
[0193] Embodiments of the second composition may further include at least
one fatty compound other than fatty acid(s). The second composition, according to embodiments herein, may include at least one fatty compound selected from those described previously herein. In an embodiment, the second composition comprises fatty compounds selected from oil of plant origin, oil having hydrocarbons comprising more than 16 carbon atoms, or combinations thereof.
[0194] In some embodiments, the fatty compound comprises at least one
liquid fatty compound and at least one fatty alcohol, wherein fatty alcohol is solid at room temperature and at atmospheric pressure, preferably selected from cetyl alcohol (1-hexadecanol), stearyl alcohol (1-octadecanol), or mixture thereof for example cetylstearyl alcohol.
[0195] Preferably, the second composition comprises at least one solid fatty
compound, more preferably selected from fatty alcohols.
[0196] Preferably, the second composition comprises at least one liquid
fatty compound, more preferably selected from oils having hydrocarbons
comprising more than 16 carbon atoms, triglycerides of plant, or mixtures thereof.
[0197] Preferably, the second composition comprises at least one fatty
compound, more preferably selected from oils having hydrocarbons comprising more than 16 carbon atoms, triglycerides of plant, fatty alcohols, or mixtures thereof.
[0198] In an embodiment, the second composition comprises the fatty
compound(s) different from fatty acids in a total amount ranging from 0.5 to 30%, preferably from 0.5% to 25 % by weight, preferably 0.5% to 20% by weight, relative to the weight of the second composition.
Additives
[0199] Embodiment of the first and second composition may each include
one or more additives. Various additives are generally known conventionally for
use in hair dyeing compositions. Embodiments of the composition herein may
include all such suitable additives. The additives, according to embodiments herein,
include conditioning agents vitamins, fragrances, adjuvants, dispersants, film-
forming agents, ceramides, preserving agents, opacifiers, antioxidants, penetrants,
sequestrants, solvents, etc. The term fragrances, vitamins, conditioning agents, etc,
as used herein, refer to its generally accepted meaning and include compounds or
substances that are generally used in personal care and cosmetic compositions.
[0200] Each of the additive, in various embodiments herein, may be present
in an amount ranging from 0.01% and 20% by weight, relative to the weight of the composition.
[0201] Embodiments of each of the first and second compositions herein,
independently, further include one or more solvents. The solvents, according to embodiments herein, include water and/or one or more organic solvents. Examples of organic solvents that may be suitable include linear or branched and, preferably, saturated monoalcohols or diols, comprising 2 to 10 carbon atoms, such as ethanol, isopropanol, hexylene glycol (2-methyl-2,4-pentanediol), neopentyl glycol and 3-methyl-1,5-pentanediol, butylene glycol, dipropylene glycol and propylene glycol;
aromatic alcohols such as benzyl alcohol or phenylethyl alcohol; polyols containing
more than two hydroxyl functions, such as glycerol; polyol ethers, for instance
ethylene glycol monomethyl, monoethyl or monobutyl ether, propylene glycol or
ethers thereof, for instance propylene glycol monomethyl ether; and also diethylene
glycol alkyl ethers, especially C1-C4 alkyl ethers, for instance diethylene glycol
monoethyl ether or monobutyl ether, or mixtures thereof.
[0202] In an embodiment, each of said first and second compositions
comprise water. In a preferable embodiment, the each of the first composition and
second composition comprises water in an amount in ranging from 30% to 99% by
weight, more preferably 40% to 95% by weight, even more preferably 50% to 90%
by weight, relative to the total weight of each of the first composition and second
composition.
[0203] In another embodiment, each of the first and second compositions
comprise organic solvents in an amount ranging from 0.1% and 40% by weight,
preferably 1% and 30% by weight, relative to the total weight of each of the first
and second composition.
[0204] The first composition and the second composition are intended to be
mixed together to obtain a mixture which may be used in dyeing applications
according to embodiments herein. The mixture may be applied to keratin fibres for
dyeing of keratin fibres.
[0205] Preferably, the weight ratio of the first composition and the second
composition to form the mixture, for application, may range from 0.3:1 to 2:1,
preferably 0.5:1 to 1.5:1, and more preferably 1:1.
[0206] Each of the first composition and the second composition, according
to embodiments herein have viscosities suited to achieve creamy consistency. The
viscosity of each of the compositions may be in the range of 500 to 1500 mPa.s
preferably 600 to 1200 mPa.s. In an embodiment, the viscosity of the first
composition is in the range of 500. to 1500 mPa.s preferably 600 to 1200 mPa.s. In
an embodiment, the viscosity of the second composition is in the range of 500 to
1500 mPa.s, preferably 600 to 1200 mPa.s.
[0207] The first and second composition are intended to be mixed before
application on keratin fibres. In an embodiment, the viscosity of the mixture of the first and second composition is in the range of 550 to 1500 mPa.s, preferably 550 to 1200 mPa.s.
[0208] The viscosity of the compositions can be measured with a rheometer,
especially with Pro Rheo R180 Rotational Viscometer, with a spindle M3 and shear rate of 1 s-1, at 25°C and atmospheric pressure, measurement at 30s.
Method
[0209] Each of the first and second composition, according to embodiments
herein, may be manufactured using known methods that are generally used in the
cosmetics or dermatological field. Typically, the method for preparation of the first
composition comprises blending the oxidative dye, the surfactant and the fatty
compound with a suitable solvent, and optionally the additive, to obtain the first
composition. The method for preparation of the second composition comprises
blending oxidizing agent and surfactant into a mixture with a suitable solvent, and,
optionally, comprising the adjuvant to obtain the second composition.
[0210] Embodiments herein further include a method for dyeing of keratin
fibre. In an embodiment, the method comprises applying the first composition and second composition of the device (100, 300 or 400). In a preferable embodiment, the method comprises providing the first composition and second composition, preferably on the hand of a user, by applying sustained pressure on the device (100, 300 or 400); mixing the first composition and second composition to obtain a mixture; applying the mixture on the fibre; allowing the mixture to remain on the fibre for a pause time in the range of 5 to 15 minutes; and rinsing the composition to obtain treated, dyed or bleached keratin fibre. In an embodiment, the method comprises providing the device; providing the first composition and second composition by applying sustained pressure on the device; mixing the first composition and second composition to obtain a mixture; applying the mixture on said fibre; and allowing the mixture to stand for a pause time ranging from 5 to 15 minutes. In a preferable embodiment, the first composition and the second
composition are provided in a ratio ranging from 0.3:1 to 2:1, more preferably from 0.5:1 to 1.5:1, and even more preferably 1:1.
[0211] In an embodiment, the sustained pressure is applied after unsealing
the device (100) along the pre-cut line (112). In another embodiment, the sustained
pressure is applied preferably after folding the device (300) along the seal (314) so
as to preferably overlap the first compartments (310) and second compartment
(312), unsealing, preferably together, the device along the pre-cut lines (318 and
320). In yet another embodiment, the sustained pressure is applied preferably after
unsealing, preferably together, the device along the pre-cut lines (406a and 406b).
[0212] Although the subject matter has been described in considerable
detail with reference to certain examples and implementations thereof, it is understood that other implementations are possible and included within the scope of the present invention.
Examples
[0213] The disclosure will now be illustrated with working examples,
which is intended to illustrate the working of disclosure and not intended to take restrictively to imply any limitations on the scope of the present disclosure. Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood to one of ordinary skill in the art to which this disclosure belongs. Although methods and materials similar or equivalent to those described herein can be used in the practice of the disclosed methods and compositions, the exemplary methods, devices, and materials are described herein. It is to be understood that this disclosure is not limited to particular methods, and experimental conditions described, as such methods and conditions may apply.
First composition (Composition 1).
[0214] In an example, the first composition (also referred to herein as
Composition 1) was formulated using surfactants viz. 0.72 wt% of laureth-12, 1.44 wt% of laureth-4, 0.72 wt% of oleth-20 and 0.10 wt%, of Polysorbate 21; amphoteric polymer viz. 0.20 wt% of polyquaternium-22; non-ionic associative polymer viz. 0.05 wt% of cetyl hydroxyethylcellulose; fatty compounds viz. 8.16
wt% of cetearyl alcohol, 0.06 wt% of olea europaea (olive) fruit oil and 2.88 wt% of mineral oil, oxidative dyes viz. 0.22 wt% of 2,4-diaminophenoxyethanol HCL, 1.48 wt% of resorcinol, 0.51 wt% of m-aminophenol, 2 wt% of p-phenylenediamine and 0.08 wt% of p-aminophenol and 0.50 wt% of sodium metabisulfite; 4.7 wt% of ethanolamine; 0.2 wt% of EDTA, 0.25 wt% of ascorbic acid, 0.75 wt% of fragrance, water q.s up to 100 wt%, 0.13 wt% of stearic acid, 0.007 wt% of myristic acid, 0.10 wt% of palmitic acid.
[0215] Table 1 depicts an example of the first composition (oil in water
emulsion), according to embodiments herein.
Table 1
No.
1
2
3
4
5
6
7
8
9 10 11 12 13 14 15 16 17 18 19 20 21 Ingredient (INCI) Amount (wt%)
Laureth-12 0.72
Stearic acid 0.13
Laureth-4 1.44
Cetearyl alcohol 8.16
Oleth-20 0.72
Polysorbate 21 0.10
Polyquaternium-22 0.20
Cetyl hydroxyethylcellulose 0.05
Olea europaea (olive) fruit oil 0.06
Mineral oil 2.88
2,4-diaminophenoxyethanol HCL 0.22
Resorcinol 1.48
m-Aminophenol 0.51
p-Phenylenediamine 2
p-Aminophenol 0.08
Sodium metabisulfite 0.5
Ethanolamine 4.7
EDTA 0.2
Ascorbic acid 0.25
Fragrance 0.75
Water qs 100
22 23 Myristic acid 0.007
Palmitic acid 0.10
Second composition (Composition 2).
[0216] In an example, the second composition (also referred to herein as
Composition 2) was formulated using 0.06 wt% of tetrasodium etidronate, 0.03 wt % of sodium salicylate, 6 wt% of hydrogen peroxide (oxidizing agent), 0.04 wt% of tetrasodium pyrophosphate, 4.4 wt% of cetearyl alcohol, 0.8 wt% of mineral oil, 0.45 wt% of beheneth-10 (polyethylene glycol ether of behenyl alcohol) docosanol, 1.53 wt% of ceteareth-33, 0.03 wt% of ceteareth-60 myristyl glycol, and water q.s up to 100 wt%.
[0217] Table 2 depicts an example of the second composition (oil in water
emulsion), according to embodiments herein.
Table 2
No. Ingredient (INCI) Amount (wt%)
1 Tetrasodium etidronate 0.06
2 Sodium salicylate 0.03
3 Hydrogen peroxide 6
4 Tetrasodium pyrophosphate 0.04
5 Water qs 100
6 Mineral oil 0.8
7 Cetearyl alcohol 4.4
8 Beheneth-10 0.45
9 Ceteareth-33 1.53
10 Ceteareth-60 myristyl glycol 0.03
[0218] Composition 1 and composition 2 were packaged in a device 100
comprising a first compartment (202) and a second compartment (204) separated by an internal wall (206), each defined in a closed envelope (102) having flexible walls, according to embodiment illustrated on figures 1a, 1b and 2.
[0219] The device 100 is composed of a closed envelope 102, made of two
flexible sidewalls 104a and 104b (collectively or individually referred to as 104)
secured together along their peripheral edges 106, defining a sealed perimeter 108
and an internal volume. The sealed perimeter 108 has four ends 110a, 110b, 110c,
and 110d (collectively or individually referred to as 110). Preferably, the sealed
perimeter 108 has a width of between 5 to 15 mm. The device 100 also comprises
an opening means, a pre-cut line 112, for example, from a first end 110a of the
sealed perimeter 108 to a second end 110b of the sealed perimeter 108, as illustrated
in FIG. 1a. The device 100 was torn along the pre-cut line 112.
[0220] Composition 1 + Composition 2: pouring and mixing of the two
compositions in hands was found to be easy. The texture and consistency was
creamy, smooth and thick, and allowed an easy and smooth spreading on hair.
[0221] Composition 1 + Composition 3: dispensing of the two compositions
was observed to be uneven and the mixing was not easy.
Evaluation of viscosity.
[0222] The viscosity of Composition 1 and Composition 2 was evaluated in
comparison with a commercially available comparative composition (also referred to herein as Composition 3, depicted in Table 3), using Viscometer model used -pro Rheo Model - R 180 with spindle M3 at 25°C. Viscosities were measured for individual compositions, i.e. Composition 1, Composition 2, and Composition 3. Further, viscosities of the mixtures of the compositions after mixing the Composition 1 with Composition 2 or Composition 3, in a 1:1 ratio, i.e. mixture of Composition 1 and Composition 2 (also referred to herein as Mixture 1); and mixture of Composition 1 and Composition 3 (also referred to herein as Mixture 2), were also measured.
[0223] Composition 3 (not an emulsion) include 0.06 wt% of tetrasodium
etidronate, 0.03 wt% of sodium salicylate, 6wt % of hydrogen peroxide, 0.04 wt% of tetrasodium pyrophosphate, 2.28 wt% of cetearyl alcohol, 0.85 wt% of trideceth-2 carboxamide MEA, 0.5 wt% of glycerin, 0.57wt% of ceteareth-25, and up to 100 wt% of water.
Table 3
No. Ingredient (INCI) Amount (wt%)
1 Tetrasodium etidronate 0.06
2 Sodium salicylate 0.03
3 Hydrogen peroxide 6.0
4 Tetrasodium pyrophosphate 0.04
5 Cetearyl alcohol 2.28
6 Trideceth-2 carboxamide MEA 0.85
7 Glycerin 0.5
8 Ceteareth-25 0.57
9 Water qs 100
[0224] Results: The results of the viscosity test are depicted in Table 4. The
viscosity of Composition 2 was observed to be different as compared to Composition 3. The difference in viscosities of Composition 3 and 2 was found to facilitate improved cosmetic properties and user convenience, according to embodiment herein. It was observed that dispensing of the Composition 1 and Composition 3 was uneven due to the difference in viscosities thereby affecting the cosmetic properties and user convenience. This difference, and the improved properties, may be attributed to the carefully selected combination of ingredients in the Composition 2 within the specified weight ranges as disclosed herein. For example, Composition 2 include combination of surfactants such as ceteareth-33, and ceteareth-60 myristyl glycol which was not present in the Composition 3. Further the composition 3 was not an emulsion unlike the composition 2 as disclosed herein.
[0225] Further, on comparison of the viscosities of the combined
compositions, i.e Mixtures 1 and 2, it was observed that the Mixture 1 had creamy consistency as compared to that of Mixture 2, thereby contributing to improved user feel, and improved and uniform spreadability of the mixture/product on keratin fibres. It further led to difference in color delivery as product is intended to be applied by hands, i.e. without the requirement for brush and bowl. The creamy
consistency enabled the composition to be taken by hand for mixing and applying on keratin fibres.
Table 4
Description Viscosity
mPa.s
Composition 1 1020
Composition 2 855
Composition 3 270
Mixture 1 (Composition 1 + Composition 2) 770
Mixture 2 (Composition 1 + Composition 3) 510
Evaluation of coloration.
[0226] The coloration achieved by Mixture 1 and Mixture 2 (referred to in
Example 3) was evaluated using L*, a*, b* system. The evaluation of the coloration can be done visually or read on a spectrocolorimeter (such as Minolta CM3600d, illuminant D65, angle 10°, SCI values) for the L*, a*, b* colorimetric measurements. In this L*, a*, b* system, L* represents the intensity of the color, a* indicates the green/red color axis and b* indicates the blue/yellow color axis. The lower the value of L, the darker or more intense the color. The higher the value of a*, the redder the shade; the higher the value of b*, the yellower the shade. The variation in coloring between the colored locks of natural white hair which is untreated (control) and after treatment or coloration are defined by AE*, corresponding to the colour uptake on keratin fibres, according to the following equation:
[0227] In this equation, L*, a* and b* represent the values measured after
dyeing the natural hair comprising 90% of white hairs and L0*, a0* and b0* represent
the values measured for the untreated natural hair comprising 90% of white hairs.
[0228] The greater the value of AE, the greater the difference in color
between the control locks and the dyed locks and greater is the colour uptake.
[0229] Results: The results of the coloration test are depicted in Table 5. A
clear difference on swatches with the 2 mixtures, Mixture 1 and Mixture 2 is
observed. It was found that the Mixture 1, having AE of 43.99, had improved colour uptake on keratin fibres as compared to Mixture 2, having AE of40,39. The higher color uptake was further achieved by the Mixture 1, i.e. the product according to embodiments herein, in reduced pause time. Moreover, the intensity of the color was better with mixture 1 (L* significantly smaller for mixture 1).
Table 5
No
1
2 3 Colorant L* a* b* AE
Blank Swatch 59.41 0.49 12.17
Mixture 1 (Composition 1 + Composition 2) 16.88 0.75 0.92 43.99
Mixture 2 (Composition 1 + Composition 3) 20.22 1.23 2.41 40.39
ADVANTAGES OF THE PRESENT DISCLOSURE
[0230] The device, and the compositions therein, of the present disclosure
achieves improved user convenience and faster dyeing solutions while achieving
efficient color delivery along with good conditioning effect.
[0231] It further achieves improved cosmetic properties including uniform
color delivery, smoothening of keratin fibres, and long-lasting effect while having
a shorter pause time.
[0232] The compositions, as disclosed herein, can be received into the
hands or palm of a user; and applied by hand on keratin fibres. Further, the
compositions as disclosed herein, have rheological properties that are suited to
provide uniform delivery of the composition on the fibres.
[0233] Improved user feel and convenience is also attributed to the creamy
consistency of the compositions as it does not require the use of brushes, bowls, etc,
for mixing or application. The embodiments herein provide a user convenient
method of dyeing keratin fibres which also enables improved and even coverage
through application by hand.
I/We Claim:
1. A device (100, 300 or 400) comprising a first compartment (202) and a
second compartment (204) each defined in a closed envelope (102, 302 or
400a and 400b) having flexible walls, wherein
said first compartment (202, 310 or 402) comprises
a first composition (208) in the form of an emulsion, preferably an oil in water emulsion, comprising
at least one oxidative dye,
at least one fatty compound different from fatty acids, and at least one first surfactant; and said second compartment (204, 312 or 404) comprises
a second composition (210) in the form of an emulsion, preferably an oil in water emulsion, comprising at least one oxidizing agent and at least one second surfactant.
2. The device as claimed in claim 1, wherein the two compartments (202) and (204) are defined in a single closed envelope (102) having flexible walls, the two compartments (202) and (204) being separated by an internal wall (206).
3. The device as claimed in any of previous claims, wherein the oxidative dye(s) is in a total amount ranging from 0.0002% to 20% by weight relative to the first composition.
4. The device as claimed in any of previous claims, wherein the oxidative dye comprises at least one oxidation base and at least one oxidation coupler, the total amount of each of said base and coupler ranging from 0.0001% to 10% by weight relative to the first composition.
5. The device as claimed in claim 4, wherein
the oxidation base is selected from para-phenylenediamines, bis(phenyl)alkylenediamines, para-aminophenols, ortho-aminophenols, heterocyclic bases, or their addition salts; and
the oxidation coupler is selected from meta-phenylenediamines,
meta-aminophenols, meta-diphenols, naphthalene-based couplers,
heterocyclic couplers, or their addition salts.
6. The device as claimed in any of previous claims, wherein the fatty compound is selected from at least one oil of plant origin, oil having hydrocarbons comprising more than 16 carbon atoms, fatty alcohols, or combinations thereof.
7. The device as claimed in as claimed in any of previous claims, wherein the fatty compound is in an amount ranging from 1% to 30% by weight, preferably from 5% to 25% by weight, more preferably from 10% to 20% by weight relative to the first composition.
8. The device as claimed in any of previous claims, wherein the first surfactant and the second surfactant is independently selected from alkoxylated C8-C30 alcohols, alkoxylated fatty acid C8-C30 esters of sorbitan, or combinations thereof.
9. The device as claimed in claim 8, wherein said alkoxylated C8-C30 alcohol is ethoxylated C8-C30 alcohol comprising from 1 to 100 mol of ethylene oxide, preferably 1 to 50 mol of ethylene oxide, more preferably 2 to 30 mol of ethylene oxide.
10. The device as claimed in any of previous claims, wherein the total amount of said first surfactant and the total amount of said second surfactant is independently ranging from 0.1% to 20% by weight, preferably 0.1% to 10% by weight relative to said first and second composition, respectively.
11. The device as claimed in any of previous claims, wherein said first composition further comprises at least one fatty acid, preferably selected from C10 to C24 fatty acids, preferably C12-C18 fatty acids, more preferably lauric acid, myristic acid, stearic acid, oleic acid, palmitic acid, or combinations thereof.
12. The device as claimed in any of previous claims, wherein said first composition further comprises at least one polymer selected from non-ionic associative polymer, amphoteric polymer, or combinations thereof.
13. The device as claimed in claim 12, wherein said amphoteric polymer is a copolymer of (alkyl)acrylic acid and dialkyl diallyl ammonium salt, preferably of (meth)acrylic acid and dimethyl diallyl ammonium chloride, the total amount of amphoteric polymer ranging from 0.01% to 5% by weight, preferably 0.05% to 3% by weight, more preferably from 0.1 to 2% by weight, relative to the first composition.
14. The device as claimed in claim 12, wherein the non-ionic associative polymer is at least one non-ionic cellulose derivative in an amount ranging from 0.005% to 5% by weight, preferably 0.01% to 2% by weight, relative to the first composition.
15. The device as claimed in any of previous claims, wherein the oxidizing agent is hydrogen peroxide.
16. The device as claimed in any of previous claims, wherein the oxidizing agent is in an amount ranging from 0.1% to 40% by weight, preferably 0.5% to 20% by weight, relative to the second composition.
17. The device as claimed in any of previous claims, wherein viscosity of the first composition and second composition, independently, measured with a rheometer with a spindle M3 at 25°C, in the range of 550 to 1500 mPa.s, preferably 550 to 1200 mPa.s.
18. The device as claimed in any of previous claims, wherein the two compartments are openable so as to discharge the compositions separately, preferably simultaneously.
19. The device as claimed in any one of claims 1 to 18, wherein said flexible walls comprises at least two flexible sidewalls (104 or 304) secured together along their peripheral edges (106 or 306), defining a sealed perimeter (108 or 308), and an internal volume wherein the at least one said first compartment (202 or 310) and said second compartment (204 or 312) are defined.
20. The device as claimed in any one of claims 1 to 19, wherein the flexible sidewalls are made of at least one sheet of polymeric film.
21. The device as claimed in claim 20, wherein the sheet of polymeric film is a multilayer polymeric film comprising at least two, different or identical, layers of polymeric film.
22. The device as claimed in any one of claims 1 to 20, wherein the device further comprises an opening means, preferably a pre-cut line (112) joining two portions of the peripheral edge (106).
23. The device as claimed in any one of claims 1 to 20, wherein the device further comprises an opening means, preferably pre-cut lines (318, 320) each joining two portions of the peripheral edge (306).
24. The device as claimed in claim 1, wherein the two compartments (310) and (312) are defined in a single closed envelope (302) having flexible walls, the two compartments (310) and (312) being separated by a seal (314).
25. A method for dyeing of keratin fibre, comprising applying the first composition and the second composition of the device as claimed in claim 1 to 24, on said fibres.
26. A method for dyeing of keratin fibre, comprising
providing the device as claimed in claims 1 to 24;
providing the first composition and the second composition by applying sustained pressure on the device;
mixing the first composition and the second composition to obtain a mixture;
applying the mixture on said fibre; and allowing the mixture to stand for a pause time ranging from 5 to 15 minutes.
27. The method as claimed in claim 26, wherein the first and second
compositions are provided in a weight ratio range of 0.3:1 to 2:1, preferably
0.5:1 to 1.5:1, and more preferably 1:1.
| # | Name | Date |
|---|---|---|
| 1 | 202221074943-STATEMENT OF UNDERTAKING (FORM 3) [23-12-2022(online)].pdf | 2022-12-23 |
| 2 | 202221074943-POWER OF AUTHORITY [23-12-2022(online)].pdf | 2022-12-23 |
| 3 | 202221074943-FORM 1 [23-12-2022(online)].pdf | 2022-12-23 |
| 4 | 202221074943-DRAWINGS [23-12-2022(online)].pdf | 2022-12-23 |
| 5 | 202221074943-DECLARATION OF INVENTORSHIP (FORM 5) [23-12-2022(online)].pdf | 2022-12-23 |
| 6 | 202221074943-COMPLETE SPECIFICATION [23-12-2022(online)].pdf | 2022-12-23 |
| 7 | 202221074943-Proof of Right [19-01-2023(online)].pdf | 2023-01-19 |
| 8 | Abstract1.jpg | 2023-02-10 |
| 9 | 202221074943-FORM 3 [17-05-2023(online)].pdf | 2023-05-17 |
| 10 | 202221074943-Request Letter-Correspondence [27-11-2023(online)].pdf | 2023-11-27 |
| 11 | 202221074943-Power of Attorney [27-11-2023(online)].pdf | 2023-11-27 |
| 12 | 202221074943-Form 1 (Submitted on date of filing) [27-11-2023(online)].pdf | 2023-11-27 |
| 13 | 202221074943-Covering Letter [27-11-2023(online)].pdf | 2023-11-27 |
| 14 | 202221074943-CERTIFIED COPIES TRANSMISSION TO IB [27-11-2023(online)].pdf | 2023-11-27 |
| 15 | 202221074943-FORM 18 [08-07-2024(online)].pdf | 2024-07-08 |