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: COMPOSITION COMPRISING AT LEAST ONE PARTICULAR
SILICONE, AT LEAST ONE ALKANE AND AT LEAST ONE DIRECT DYE AND/OR AT LEAST ONE PIGMENT
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.

The present invention relates to a cosmetic composition for treating keratin fibres, and in particular human keratin fibres such as hair, which comprises a specific oil-in-water-type silicone emulsion, one or more alkanes, and one or more direct dye(s) and/or one or more pigment.
The invention also relates to a method for treating keratin fibres, especially dyeing keratin fibres, in particular human keratin fibres such as hair, which consists in applying to said keratin fibres said composition.
Throughout the years, people have sought to modify the colour of their skin, their eyelashes or their hair. More particularly, one of the major concerns of long hair consumers is uneven colour and conditioning from root to tips.
Several techniques have been developed to achieve the desired colour.
A first method for dyeing human keratin fibres implies dye compositions containing oxidation dye precursors, generally known as oxidation bases. These oxidation bases are colourless or weakly coloured compounds, which, when combined with oxidizing products, may give rise to coloured compounds via a process of oxidative condensation.
The shades obtained with these oxidation bases can be modified by combining them with couplers or coloration modifiers. The variety of molecules used as oxidation bases and couplers allows a wide range of colours to be obtained.
Although this oxidative hair dye method generally provi des good dyeing properties, notably in terms of chromaticity and brightness, as well as good cosmetic properties, such as lightness, volume and shine, these properties tend to fade over time and new grey dull hair is visible after few weeks. The consumers usually experience dull and dry ends,

which lack colour, shine and smoothness, which is not appreciated by the consumers, who then need to dye their hair more frequently. However, people hesitate to use oxidative dyes that often because of hair damage and scalp irritation.
A second method for dyeing human keratin fibres is known as direct dyeing or semi-permanent dyeing, and comprises the application of direct and/or natural dyes, which are coloured and colouring molecules that have affinity for fibres. Given the nature of the molecules used, they tend rather to remain on the surface of the fibre and penetrate relatively little into the fibre, when compared with the small mole cules of oxidation dye precursors.
The main advantages of this type of dyeing are that it does not require any oxidizing agent, which limits the degradation of the fibres, and that it does not use any dyes that have particular reactivity, resulting in limitation of the intolerance risks.
More particularly, direct dyeing may involve natural hair dyes, such as henna, which provide a good coverage of the hair. However, these natural products are quite difficult to control and the shades thus obtained are not completely satisfactory. To avoid unwanted yellow and/or orange tones on their hair, many people may prefer give off such dyeing agents. Use of these natural dyeing agents also tends to transfer on the hands and/or on the clothes of the users.
Among the other dyeing agents, synthetic direct dyes and/or pigments such as metal oxides are commonly used. These agents can notably be included in many different types of compositions such as in shampoo, conditioner or leave-on formats. However, depending on the dye concentration in the formulations, these compositions may be applied more or less frequently and may require the use of gloves to avoid any stains on the hands. In addition, the cosmetic and dyeing properties conferred by these compositions are also not completely satisfactory and need to be improved.
Hence, there is a real need to develop a cosmetic composition, and notably a cosmetic dyeing composition, which can be part of consumer daily regime, i.e. which is easy to apply without any irritation

of the skin or the scalp and/or any stain on the hands or clothes. This composition should also provide improved dyeing properties, and notably a progressive and satisfactory coverage of grey hair by even deposition of colour with care, while conferring good cosmetic properties, notably in terms of shine, brightness, smoothness and softness.
The Applicant has now discovered that a cosmetic composition comprising a specific oil-in-water-type silicone emulsion, one or more alkanes comprising from 6 to 32 carbon atoms in a specific content, and one or more direct dye(s) and/or one or more pigment makes it possible to achieve the objectives outlined above.
Thus, the subject of the invention is a cosmetic composition comprising:
a. an oil-in-water emulsion having D50 particle size of less than
350 nm and comprising:
- a silicone mixture comprising (i) one or more trialkylsilyl terminated dialkylpolysiloxane(s) having a viscosity of from 40,000 to less than 100,000 mPa.s at 25°C and (ii) one or more amino silicone(s) having a viscosity of from 1,000 to 15,000 mPa.s at 25°C and an amine value of from 2 to 10 mg of KOH per gram of amino silicone,
- a mixture of emulsifiers comprising one or more nonionic emulsifiers, wherein the mixture of emulsifiers has a HLB value of from 10 to 16, and
- water;
b. one or more alkanes comprising from 6 to 32 carbon atoms in
a total amount of at least 1% by weight relative to the total weight of
the composition;
c. one or more direct dye(s) and/or one or more pigment(s).
The cosmetic composition according to the present invention
provides a good and progressive coverage of grey hair by even deposition of colour with care, and also provides a good deposition of the direct dye(s) and/or the pigment(s) on the fibres.

In addition, the hair dyed with the composition of the invention present good cosmetic properties, notably in terms of lightness, brightness, smoothness and softness of the hair.
The composition of the present invention is also stable over time and easy to apply.
The invention also relates to a method for treating keratin fibres, especially dyeing keratin fibres, in particular human keratin fibres such as hair, which consists in applying to said keratin fibres a composition as previously defined, and after an optional leave-on time, optionally removing it by rinsing.
Other subject-matters, characteristics, aspects and advantages of the invention will emerge even more clearly on reading the description and the example that follows.
In the text herein below, unless otherwise indicated, the limits of a range of values are included in that range, for example in the expressions "between" and "ranging from ... to ...".
Moreover, the expression "at least one" used in the present description is equivalent to the expression "one or more".
Silicone(s) in the form of an oil-in-water emulsion
The cosmetic composition according to the invention comprises an oil-in-water (or silicone-in-water) emulsion having D50 particle size of less than 350 nm and comprising:
- a silicone mixture comprising (i) a trialkylsilyl terminated
dialkylpolysiloxane having a viscosity of from 40,000 to less than
100,000 mPa.s at 25°C and (ii) an amino silicone having a viscosity of
from 1,000 to 15,000 mPa.s at 25°C and an amine value of from 2 to 10
mg of KOH per gram of amino silicone;
- a mixture of emulsifiers comprising one or more nonionic emulsifiers, wherein the mixture of emulsifiers has a HLB value of from 10 to 16; and
- water.
In the oil-in-water emulsion, or silicone-in-water emulsion, one liquid phase (the dispersed phase) is dispersed in the other liquid phase

(the continuous phase); in the present invention, the silicone mixture, or silicone phase, is dispersed in the continuous aqueous phase.
The silicone mixture comprises one or more trialkylsilyl terminated dialkylpolysiloxanes, that are preferably of formula (IX):
R’3SiO(R’2SiO)pSiR’3 (IX), wherein:
- R’, identical or different, is a monovalent hydrocarbon radical having from 1 to 18 carbon atoms, preferably from 1 to 6 carbon atoms, even better from 1 to 3 carbon atoms, more preferably methyl, and
- p is an integer of from 500 to 2,000, preferably of from 1,000 to 2,000.
The trialkylsilyl terminated (or end-blocked or α,ω-position) dialkylpolysiloxanes according to the invention have a viscosity of from 40,000 to less than 100,000 mPa.s (100,000 excluded) at 25°C, preferably a viscosity of from 40,000 to 70,000 mPa.s at 25°C, more preferably a viscosity of from 51,000 to 70,000 mPa.s at 25°C.
The trialkylsilyl terminated dialkylpolysiloxanes according to the invention are preferably linear but may contain additionally to the R’2SiO2/2 units (D-units) in formula (IX), R’SiO3/2 units (T-units) and/or SiO4/2 units (Q-units), wherein R’, same or different, is a monovalent hydrocarbon radical having from 1 to 18 carbon atoms.
Preferably, R’, identical or different, are alkyl radicals, preferably C1-C18 alkyl radicals, such as the methyl, ethyl, n-propyl, isopropyl, 1-n-butyl, 2-n-butyl, isobutyl, tert-butyl, n-pentyl, isopentyl, neopentyl and tert-pentyl radicals, hexyl radicals, such as the n-hexyl radical, heptyl radicals such as the n-heptyl radical, octyl radicals such as the n-octyl radical and isooctyl radicals, such as the 2,2,4-trimethylpentyl radical, nonyl radicals, such as the n-nonyl radicals, decyl radicals, such as the n-decyl radical, dodecyl radicals, such as the n-dodecyl radical, and octadecyl radicals, such as the n-octadecyl radical; alkenyl radicals such as the vinyl and ally radical; cycloalkyl radicals, such as the cyclopentyl, cyclohexyl, cycloheptyl and methylcyclohexyl radicals; aryl radicals, such as the phenyl, naphthyl, anthryl and phenanthryl radical; alkaryl radicals, such as the o-, m- and

p-tolyl radicals, xylyl radicals and ethylphenyl radicals; and aralkyl radicals such as the benzyl radical and the a- and the b-phenylethyl radical. Most preferred is the methyl radical.
Preferably, the trialkylsilyl terminated dialkylpolysiloxanes are
trimethylsilyl terminated PDMS (polydimethylsiloxanes or
dimethicones).
The silicone mixture comprises one or more amino silicones, that are preferably of formula (X):
XR2Si(OSiAR)n(OSiR2)mOSiR2X (X), wherein:
- R, identical or different, is a monovalent hydrocarbon radical having from 1 to 18 carbon atoms, preferably from 1 to 6 carbon atoms, even better from 1 to 3 carbon atoms, more preferably methyl;
- X, identical or different, is R or a hydroxyl (OH) or a C1-C6-alkoxy group; preferably X is R, i.e. a monovalent hydrocarbon radical having from 1 to 18 carbon atoms, preferably from 1 to 6 carbon atoms, even better from 1 to 3 carbon atoms, more preferably methyl;
- A is an amino radical of the formula -R1-[NR2-R3-]xNR22, or the protonated amino forms of said amino radical, wherein R1 is a C1-C6-alkylene radical, preferably a radical of the formula -CH2CH2CH2-or -CH2CH(CH3)CH2-, R2, same or different, is a hydrogen atom or a C1-C4-alkyl radical, preferably a hydrogen atom, R3 is a C1-C6-alkylene radical, preferably a radical of the formula -CH2CH2-, and x is 0 or 1; and
- m+n is an integer from 50 to about 1000, preferably from 50 to 600.
Preferably, A is an amino radical of the formula -R1-[NR2-R3-]xNR22, or the protonated amino forms of said amino radical, wherein R1 is -CH2CH2CH2- or -CH2CH(CH3)CH2-, R2 are hydrogen atoms, R3 is -CH2CH2-, and x is 1.
Preferably, R, identical or different, are alkyl radicals, preferably C1-C18 alkyl radicals, such as the methyl, ethyl, n-propyl, isopropyl, 1-n-butyl, 2-n-butyl, isobutyl, tert-butyl, n-pentyl, isopentyl, neopentyl and tert-pentyl radicals, hexyl radicals, such as the n-hexyl

radical, heptyl radicals such as the n-heptyl radical, octyl radicals such as the n-octyl radical and isooctyl radicals, such as the 2,2,4 -trimethylpentyl radical, nonyl radicals, such as the n-nonyl radicals, decyl radicals, such as the n-decyl radical, dodecyl radicals, such as the n-dodecyl radical, and octadecyl radicals, such as the n-octadecyl radical; alkenyl radicals such as the vinyl and ally radical; cycloalkyl radicals, such as the cyclopentyl, cyclohexyl, cycloheptyl and methylcyclohexyl radicals; aryl radicals, such as the phenyl, naphthyl, anthryl and phenanthryl radical; alkaryl radicals, such as the o -, m- and p-tolyl radicals, xylyl radicals and ethylphenyl radicals; and aralkyl radicals such as the benzyl radical and the a- and the b-phenylethyl radical. Most preferred is the methyl radical.
The amino silicones according to the invention have a viscosity of from 1,000 to 15,000 mPa.s at 25°C, preferably of from 1,500 to 15,000 mPa.s.
The amino silicones according to the invention have an amine value of from 2 to 10 mg of KOH per gram of amino silicone, preferably of from 3.5 to 8 mg.
The mole percent of amine functionality is preferably in the range of from about 0.3 to about 8%.
Examples of amino silicones useful in the silicone mixture according to the invention include trialkylsilyl terminated amino silicone.
Most preferably, amino silicones are trimethylsilyl terminated aminoethylaminopropylmethylsiloxane, most preferably trimethylsilyl terminated aminoethylaminopropylmethylsiloxane - dimethylsiloxane copolymers. The amino radical A can be protonated partially or fully by adding acids to the amino silicone, wherein the salt forms of the amino radical are obtained. Examples of acids are carboxylic acids with 3 to 18 carbon atoms which can be linear or branched, such as formic acid, acetic acid, propionic acid, butyric acid, pivalic acid, sorbic acid, benzoic acid, salicylic acid. The acids are preferably used in amounts of from 0.1 to 2.0 mol per 1 mol of amino radical A in the amino silico ne of formula (X).

The silicone mixture preferably comprises (i) one or more trialkylsilyl terminated dialkylpolysiloxanes having a viscosity of from 40,000 to less than 100,000 mPa.s at 25°C in a quantity of from 70 to 90% by weight, preferably from 75 to 85% by weight, relative to the total weight of the silicone mixture, and (ii) one or more amino silicones having a viscosity of from 1,000 to 15,000 mPa.s at 25°C and an amine value of from 2 to 10 mg of KOH per gram of amino silicone, in a quantity of from 10 to 30% by weight, preferably from 15 to 25% by weight, relative to the total weight of the silicone mixture.
The oil-in-water emulsion further comprises a mixture of emulsifiers that comprises one or more nonionic emulsifiers. It could optionally comprise one or more cationic surfactants.
The mixture of emulsifiers has a HLB value from 10 to 16.
The nonionic emulsifiers can be chosen among the nonionic surfactants as described hereunder.
Mention may be made of alcohols, α-diols and
(C1-20)alkylphenols, these compounds being polyethoxylated and/or polypropoxylated and/or polyglycerolated, the number of ethylene oxide and/or propylene oxide groups possibly ranging from 1 to 100, and the number of glycerol groups possibly ranging from 2 to 30 ; or alternatively these compounds comprising at least one fatty chain comprising from 8 to 30 carbon atoms and especially from 16 to 30 carbon atoms.
Mention may also be made of condensates of ethylene oxide and of propylene oxide with fatty alcohols; polyethoxylated fatty amides preferably having from 2 to 30 ethylene oxide units, polyglycerolated fatty amides comprising on average from 1 to 5, and in particular from 1.5 to 4, glycerol groups; ethoxylated fatty acid esters of sorbitan preferably containing from 2 to 40 ethylene oxide units, fatty acid esters of sucrose, polyoxyalkylenated and preferably polyoxyethylenated fatty acid esters containing from 2 to 150 mol of ethylene oxide, including oxyethylenated plant oils, N-(C6-24 alkyl)glucamine derivatives, amine

oxides such as (C10-14 alkyl)amine oxides or N-(C10-14
acyl)aminopropylmorpholine oxides.
Mention may also be made of nonionic surfactants of alkyl(poly)glycoside type, represented especially by the following general formula:
R1O-(R2O)t-(G)v, in which:
- R1 represents a linear or branched alkyl or alkenyl radical comprising 6 to 24 carbon atoms and especially 8 to 18 carbon atoms, or an alkylphenyl radical whose linear or branched alkyl radical comprises 6 to 24 carbon atoms and especially 8 to 18 carbon atoms;
- R2 represents an alkylene radical comprising 2 to 4 carbon atoms,
- G represents a sugar unit comprising 5 to 6 carbon atoms,
- t denotes a value ranging from 0 to 10 and preferably 0 to 4,
- v denotes a value ranging from 1 to 15 and preferably 1 to 4.
Preferably, the alkylpolyglycoside surfactants are compounds of the formula described above in which:
- R1 denotes a linear or branched, saturated or unsaturated alkyl radical comprising from 8 to 18 carbon atoms,
- R2 represents an alkylene radical comprising 2 to 4 carbon atoms,
- t denotes a value ranging from 0 to 3 and preferably equal to 0,
- G denotes glucose, fructose or galactose, preferably glucose;
- the degree of polymerization, i.e. the value of v, possibly ranging from 1 to 15 and preferably from 1 to 4; the mean degree of polymerization more particularly being between 1 and 2.
The glucoside bonds between the sugar units are generally of 1-6 or 1-4 type and preferably of 1-4 type. Preferably, the alkyl(poly)glycoside surfactant is an alkyl(poly)glucoside surfactant. C8/C16 alkyl(poly)glycosides 1,4, and especially decyl glucosides and caprylyl/capryl glucosides, are most particularly preferred.
Among the commercial products, mention may be made of the products sold by the company COGNIS under the names PLANTAREN® (600 CS/U, 1200 and 2000) or PLANTACARE® (818, 1200 and 2000); the products sold by the company SEPPIC under the names ORAMIX

CG 110 and ORAMIX NS 10; the products sold by the company BASF under the name LUTENSOL GD 70, or else the products sold by the company CHEM Y under the name AG10 LK.
The nonionic emulsifiers can preferably be chosen among ethoxylated aliphatic alcohols, polyoxyethylene surfactants, carboxylic esters, polyethylene glycol esters, sorbitol ester and their ethoxylated derivatives, glycol esters of fatty acids, carboxylic amides, monoalkanolamine condensates, polyoxyethylene fatty acid amides.
Preferably, nonionic emulsifiers are selected from: (i) polyoxyalkylene alkyl ethers, especially (poly)ethoxylated fatty alcohols of formula:
R3-(OCH2CH2)cOH, with:
- R3 representing a linear or branched C 8-C40 alkyl or alkenyl group, preferably C8-C30 alkyl or alkenyl group, optionally substituted with one or more hydroxyl groups, and
- c being an integer between 1 and 200 inclusive, preferentially between 2 and 150 and more particularly between 4 and 50, most preferably between 8 and 20.
The (poly)ethoxylated fatty alcohols are more particularly fatty alcohols comprising from 8 to 22 carbon atoms, oxyethylenated with 1 to 30 mol of ethylene oxide (1 to 30 OE);
(ii) polyoxyalkylene (C8-C32)alkylphenyl ethers,
(iii) polyoxyalkylene sorbitan (C8-C32) fatty acid esters, especially polyethoxylated fatty acid esters of sorbitan preferably containing from 2 to 40 ethylene oxide units, most preferably from 2 to 20 ethylene oxide units; preferably polyoxyethylenated so rbitan (C10-C24) fatty acid esters preferably containing from 2 to 40 ethylene oxide units, most preferably from 2 to 20 ethylene oxide units; and
(iv) polyoxyethylenated (C8-C32) fatty acid esters containing for example from 2 to 150 mol of ethylene oxide; preferably polyoxyethylenated (C10-C24) fatty acid esters containing for example from 2 to 150 mol of ethylene oxide.

Preferably, the nonionic emulsifiers could be selected from alkyl ether of polyalkyleneglycol and alkyl esters of polyalkyleneglycol; preferably of polyethyleneglycol (PEG).
Some useful emulsifiers are:
- polyethyleneglycol octyl ether; polyethyleneglycol lauryl ether; polyethyleneglycol tridecyl ether; polyethyleneglycol cetyl ether; polyethyleneglycol stearyl ether; among these, mention may be made more particularly of trideceth-3, trideceth-10 and steareth-6.
- polyethyleneglycol nonylphenyl ether; polyethyleneglycol dodecylphenyl ether; polyethyleneglycol cetylphenyl ether; polyethyleneglycol stearylphenyl ether;
- polyethyleneglycol sorbitan monostearate, polyethyleneglycol
sorbitan monooleate.
- polyethyleneglycol stearate, and especially PEG-100 stearate.
Most preferably, the nonionic emulsifiers are chosen among
steareth-6, PEG-100 stearate, trideceth-3 and trideceth-10 and their mixture; preferably, all these emulsifiers are present in the mixture of emulsifiers.
The mixture of emulsifiers could comprise one or more cationic emulsifiers that could be selected among tetraalkylammonium halides, tetraarylammonium halides, tetraalkylarylammonium halides, and their salts; quaternary ammonium compounds including salts; preferably, the cationic emulsifiers could be chosen among cetrimonium halides or behentrimonium halides, such as chloride.
The oil-in-water emulsion preferably comprises the mixture of emulsifiers in a total amount of from 5 to 15% by weight, preferably of from 8 to 15% by weight, most preferably of from 10 to 12% by weight, relative to the total weight of the emulsion.
The oil-in-water emulsion preferably comprises nonionic emulsifiers in a total amount of from 5 to 15% by weight, preferably of from 8 to 15% by weight, most preferably of from 10 to 12% by weight, relative to the total weight of the emulsion.

The oil-in-water emulsion preferably comprises cationic emulsifiers, when present, in a total amount of from 0.5 to 1.5% by weight, relative to the total weight of the emulsion.
The oil-in-water emulsion preferably comprises the silicone mixture in a total amount of from 40 to 60% by weight, preferably of from 45 to 55% by weight, relative to the total weight of the emulsion.
The oil-in-water emulsion preferably comprises the trialkylsilyl terminated dialkylpolysiloxane(s) in a total amount of from 35 to 45% by weight, preferably of from 38-42% by weight, relative to the total weight of the emulsion.
The oil-in-water emulsion preferably comprises the amino silicone(s) in a total amount of from 5 to 15% by weight, preferably of from 8-12% by weight, relative to the total weight of the emulsion.
The oil-in-water emulsion comprises water preferably in an amount of from 25 to 50% by weight, preferably of from 30 to 45% by weight, most preferably of from 35 to 42% by weight, relative to the total weight of the emulsion.
The oil-in-water emulsion could additionally comprise a biocide, such as phenoxyethanol, that could be present in the emulsion in a quantity of from 0.5 to 1% by weight, relative to the total weight of the emulsion.
A method of preparation of the oil-in-water emulsion preferably comprises:
- a step of mixing one or more trialkylsilyl terminated
dialkylpolysiloxanes of viscosity of from 40,000 to less than
100,000 mPa.s at 25°C and one or more amino silicones of viscosity of
from 1,000 to 15,000 mPa.s at 25°C and an amine value of from 2 to 10
mg of KOH per gram of amino silicone, at a temperature of from 15°C
to 40°C, preferably at 25°C, to obtain a mixed silicone fluid, then
- a step of adding a mixture of emulsifiers comprising one or
more nonionic emulsifiers, wherein the mixture of emulsifiers has a
HLB value from 10 to 16, to the mixed silicone fluid to obtain a silicone -
emulsifier-mixture, then

- a step of homogenizing the silicone-emulsifier-mixture
followed by
- a step of adding, preferably step-wise, water, preferably
demineralized water, to obtain an oil-in-water emulsion having D50
particle size of less than 350 nm.
The method of preparation of the oil-in-water emulsion could further comprise an additional step of adding a biocide. Biocide could be added for preserving the emulsion against microbial contamination. The biocide could be added at the level of for preserving emulsion against microbial contamination and obtaining the said emulsion. The quantity of the biocide depends on the type of biocide and as recommended by the manufacturer.
The preparation of the mixture of emulsifiers could be made by mixing one or more nonionic emulsifiers.
The pH of the oil-in-water emulsion after neutralization (i.e. after addition of the biocide) is preferably of from 4 to 6.
The oil-in-water emulsion has D50 particle size of less than 350 nm, preferably of from 100 to 300 nm, more preferably from 150 to 250 nm, even more preferably from 150 to 225 nm, and most preferably from 160 to 200 nm. It corresponds to the average hydrodynamic particle diameter. The D50 particle size is expressed in volume. The D50 particle size could be measured by using a device ZetaSizer from Malvern, UK, model Nano-ZS, which is based on the Photon Correlation Spectroscopy (PCS) method.
Particle size measurement
Emulsion particle size is measured by using a device ZetaSizer from Malvern, UK, model Nano-ZS which is based on the Photon Correlation Spectroscopy (PCS) method. The D50 value of particle size (average hydrodynamic particle diameter) is measured, wherein the evaluating algorithm is “cumulants analysis”.
Take 0.5 g of the emulsion sample in a 250 ml beaker, 100 ml of demineralized water is poured into it and then mixed properly to get the sample test solution. The sample test solution is poured in the cuvette

cell and is put into the slot of the instrument to measure the particle size of the emulsion. D50 is defined as the value of the particle diameter at 50% in the cumulative distribution. For example, if D50=170 nm, then 50% of the particles in the sample are larger than 170 nm, and 50% smaller than 170 nm or about 50% by volume of all droplets in said emulsion is 170 nm.
Viscosity measurement
The viscosity, especially of the silicones or of the emulsion, is measured at 25°C, at atmospheric pressure .
For viscosities between 1000 to 40,000 mPa.s at 25ºC: the viscosity could be measured with an Anton Paar Rheometer; model MCR101, geometry single gap cylinder: CC27 spindle and shear rate of 1 s-1 for 2 minutes, at 25°C.
For viscosities between 40,000 to 100,000 mPa.s at 25ºC: the viscosity could be measured with an Anton Paar Rheometer; model MCR101, 25-6 cone (Cone-plate geometry: 25 mm dia. / 6° cone); the “Zero gap” setting being made and with a shear rate of 1 s-1 for 2 minutes, at 25°C.
Three measurements are made for each sample and the viscosity value is taken at 60 seconds. MCR Rheometer Series products work as per USP (US Pharmacopeia Convention) 912 – Rotational Rheometer methods.
Amine value measurement
The amine value is determined by acid-base titration using a potentiometer [Make: Veego; Model: VPT-MG]. 0.6 g of sample is taken in a 500 ml beaker and a toluene-butanol 1:1 mixture is added and stirred to mix the sample thoroughly; then the sample solution is titrated with a 0.1(N) HCl solution. A determination of the blank value with the toluene-butanol 1:1 mixture is also done. The calculation of the amine value is done by the above mentioned potentiometer.
The amine value is calculated according to the formula:
56.11 × (V - V Blank) × N / W mg KOH/ g of sample,

where V= Volume of HCl required in ml, VBlank= Volume of HCl for blank value (without sample) with the toluene-butanol 1:1 mixture in ml; N= Normality of HCl, i.e. 0.1 N, W= weight of the sample taken in gram.
HLB Value
The term HLB is well known to those skilled in the art, and denotes the hydrophilic-lipophilic balance of a surfactant or emulsifier. In the present invention, HLB values refer to the values at 25°C.
The HLB can be measured by experimental determination or can be calculated.
Calculation of HLB value of nonionic surfactans is calculated according to the equation: HLB = (E + P)/5, with E being the weight percentage of oxyethylene content and P being the weight percentage of polyhydric alcohol content, described in to the publication Griffin, J. Soc. Cosm. Chem. 1954 (vol.5, n°4), pp.249-256.
It can also experimentally be determined according to the book of F. Puisieux and M. Seiller, entitled "Galenica 5: Les systèmes disperses - Tome I - Agents de surface et émulsions - Chapitre IV -Notions de HLB et de HLB critique, pp.153-194 - paragraph 1.1.2. Determination de HLB par voie experimentale [Experimental determination of HLB], pp.164-180".
The calculated HLB is the preferred HLB values that should be taken into account.
Said calculated HLB could be defined as being the following:
“calculated HLB = 20 × molar mass of the hydrophilic part/total molar mass.”
For an oxyethylenated fatty alcohol, the hydrophilic part corresponds to the oxyethylene units condensed onto the fatty alcohol and the “calculated HLB” then corresponds to the “Griffin HLB” as defined hereabove.
For an ester or an amide, the hydrophilic part is naturally defined as being beyond the carbonyl group, starting from the fatty chain(s).

For ionic surfactants/emulsifiers, the HLB value of individual
surfactant/emulsifier can be calculated applying the Davies formula as
described in Davies JT (1957), "A quantitative kinetic theory of
emulsion type, I. Physical chemistry of the emulsifying agent",
Gas/Liquid and Liquid/Liquid Interface (Proceedings of the
International Congress of Surface Activity): 426-438.
According to the formula, the HLB is derived by summing the hydrophilic/hydrophobic contribution afforded by the struct ural components of the emulsifier: HLB = (hydrophilic groups numbers) – n(group number per CH2 group) +7.
Approximate HLB values for some cationic emulsifiers are given in Table IV, in “Cationic emulsifiers in cosmetics”, GODFREY, J. Soc. Cosmetic Chemists (1966) 17, pp17-27.
When two emulsifiers A and B of known HLB are blended for use, the HLBMix is said to be the required HLB for the mixture. This is expressed by the equation (WAHLBA + WBHLBB)/ (WA + WB) = HLBMix, where WA = the amount (weight) of the first emulsifier (A) used, and WB = the amount (weight) of the second emulsifier (B); HLBA, HLBB = the assigned HLB values for emulsifiers A and B; HLB Mix = the HLB of the mixture.
Said oil-in-water emulsion is for example described in WO 2017/108824.
The cosmetic composition according to the invention may comprise the oil-in-water emulsion in an amount ranging from 0.1% to 20% by weight, preferably from 0.3 % to 15% by weight and better still from 0.5% to 12% by weight, better from 0.5 to 10%, even more preferentially from 1 to 8% by weight relative to the total weight of the composition.
The composition according to the invention preferably comprises the trialkylsilyl terminated dialkylpolysiloxane(s) having a viscosity of from 40,000 to less than 100,000 mPa.s at 25°C and at atmospheric pressure, in a total amount ranging from 0.1% to 8% by weight, more preferably from 0.2 % to 5% by weight, even more preferably from 0.5%

to 4% by weight, better from 1 to 3% by weight, relative to the total weight of the composition.
The composition according to the invention preferably comprises the amino silicone(s) having a viscosity of from 1,000 to 15,000 mPa.s at 25°C and at atmospheric pressure, and an amine value of from 2 to 10 mg of KOH per gram of amino silicone, in a total amount ranging from 0.1% to 5% by weight, more preferably from 0.2 % to 3% by weight, even more preferably from 0.3% to 2% by weight, better from 0.4 to 1% by weight, relative to the total weight of the composition
Alkanes
The composition of the invention comprises one or more alkanes comprising from 6 to 32 carbon atoms in a total amount of at least 1% by weight relative to the total weight of the composition.
Preferably, the alkane(s) that is(are) suitable for the invention may comprise from 6 to 20 carbon atoms, preferably from 8 to 18 carbon atoms, most preferably from 10 to 16 carbon atoms. They could be cyclic, branched or linear. Preferably, they are branched .
Preferentially, a mixture of at least two different alkanes, differing from one another by a carbon number n of at least 1, may be used.
Preferably, a mixture of at least two different alkanes comprising from 6 to 32 carbon atoms, differing from each other by a carbon number of 1, may be used.
More preferably, a mixture of at least two different alkanes comprising from 10 to 16 carbon atoms and differing from each other by a carbon number of at least 1 may be used.
Preferably, a mixture of at least three different alkanes comprising from 6 to 32 carbon atoms, more preferably at least four different alkanes, differing from each other by a carbon number of 1, may be used.
Examples that may especially be mentioned include mixtures of C10/C11, C11/C12, C12/C13, C13/C14, C14/C15, C13/C14/C15/C16 alkanes.

A mixture of at least two different alkanes comprising from 6 to 32 carbon atoms, preferably from 10 to 16 carbon atoms, and differing from each other by a carbon number of at least 2 could also be used.
Examples that may especially be mentioned include mixtures of C10/C12, C10/C13, C10/C14, C10/C15, C10/C16, C11/C13, C11/C14, C11/C15, C11/C16, C12/C14, C12/C15, C12/C16, C13/C15, C13/C16 alkanes.
The alkane(s) according to the invention may be present in the composition in a total content ranging from 1 to 40% by weight, preferably from 5% to 30% by weight, in particular from 8% to 25% by weight, especially from 10 to 20% by weight relative to the total weight of said composition.
According to one particular embodiment of the invention, the composition may comprise less than 10% by weight, or even less than 5% by weight, or even less than 2% by weight, or may even be free of cyclic silicone oil.
Direct dye(s)
The cosmetic composition of the invention also comprises one or more direct dye(s) and/or one or more pigment(s).
A direct dye is understood to be any dye which does not require the presence of a chemical oxidizing agent other than air for colouring. The term "chemical oxidizing agent" is intended to mean an oxidizing agent other than atmospheric oxygen.
The direct dye(s) may be chosen from synthetic direct dyes and natural direct dyes.
A synthetic direct dye is understood to be any direct dye that does not exist in the natural state, including dyes obtained semi-synthetically.
Examples of suitable synthetic direct dyes that may be
mentioned include azo, methine, carbonyl, azine, xanthene,
nitro(hetero)aryl, tri(hetero)arylmethane, (metallo)porphyrin and
phthalocyanine direct dyes, alone or as mixtures.

More particularly, the synthetic azo direct dyes include an -N=N- function in which the two nitrogen atoms are not simultaneously part of a ring. However, it is not excluded for one of the two nitrogen atoms of the sequence -N=N- to be part of a ring.
Examples of azo direct dyes that may be mentioned include the following dyes, described in Colour Index International, 3rd edition:
- Disperse Red 17
- Basic Red 22
- Basic Red 76
- Basic Yellow 57
- Basic Brown 16
- Basic Brown 17
- Disperse Black 9.
The direct dyes of the methine family are more particularly compounds comprising at least one sequence chosen from >C=C< and -N=C< in which the two atoms are not simultaneously part of a ring. However, it is pointed out that one of the nitrogen or carbon atoms of the sequences may be part of a ring.
More particularly, the methine dyes are derived from methine, azomethine, hydrazono, mono- and diarylmethane, indoamine (or diphenylamine), indophenol, indoaniline and (hemi)cyanine compounds, such as styryl, streptocyanine, carbocyanine, azacarbocyanine, diazacarbocyanine and tetraazacarbocyanine, such as tetraazapentamethine, dyes, and the optical and geometric isomers thereof.
Among the azo, azomethine, methine or tetraazapentamethine direct dyes that may be used according to the invention, mention may be made of the cationic dyes described in patent applications WO 95/15144, WO 95/01772 and EP 714954; FR 2189006, FR 2285851, FR 2140205, EP 1378544, EP 1674073.
Among the indoamine dyes that may be used according to the invention, mention may be made of the following compounds: - 2-p-hydroxyethlyamino-5-[bis(p-4’-hydroxy ethyl)amino]anilino-1,4-benzoquinone;

- 2-P-hydroxyethylamino-5-(2’-methoxy-4’-amino)anilino-1,4-benzoquinone;
- 3-N-(2’-chloro-4’-hydroxy)phenylacetylamino-6-methoxy-1,4-benzoquinone imine;
- 3-N-(3’-chloro-4’-methylamino)phenylureido-6-methyl-1,4-benzoquinone imine; and
- 3-[4’-N-(ethyl,carbamylmethyl)amino]phenylureido-6-methyl-1,4-benzoquinone imine.
Among the tetraazapentamethine dyes that may be used according to the invention, mention may be made of the following compounds appearing in the table below:


X- representing an anion preferably chosen from chloride, iodide, methyl sulfate, ethyl sulfate, acetate and perchlorate.
As regards the synthetic direct dyes of the carbonyl family,
examples that may be mentioned include dyes chosen from quinone,
acridone, benzoquinone, anthraquinone, naphthoquinone, benzanthrone,
anthranthrone, pyranthrone, pyrazolanthrone, pyrimidinoanthrone,
flavanthrone, idanthrone, flavone, (iso)violanthrone, isoindolinone,
benzimidazolone, isoquinolinone, anthrapyridone,
pyrazoloquinazolone, perinone, quinacridone, quinophthalone,
indigoid, thioindigo, naphthalimide, anthrapyrimidine,
diketopyrrolopyrrole and coumarin dyes.
Among the quinone direct dyes, mention may be made of the following dyes:
- Disperse Red 15
- Solvent Violet 13
- Disperse Violet 1
- Disperse Violet 4
- Disperse Blue 1
- Disperse Violet 8
- Disperse Blue 3
- Disperse Red 11
- Disperse Blue 7
- Basic Blue 22
- Disperse Violet 15
- Basic Blue 99
and also the following compounds:
- 1-N-methylmorpholiniumpropylamino-4-hydroxyanthraquinone;
- 1-aminopropylamino-4-methylaminoanthraquinone;
- 1-aminopropylaminoanthraquinone;
- 5-p-hydroxyethyl-1,4-diaminoanthraquinone;
- 2-aminoethylaminoanthraquinone;
- 1,4-bis(p,Y-dihydroxypropylamino)anthraquinone.

As regards the synthetic direct dyes of the azine family, mention may be made in particular of azine, fluorindine, acridine, (di)oxazine and (di)thiazine dyes.
Examples of azine dyes that may be mentioned include the following compounds:
- Basic Blue 17
- Basic Red 2.
As regards the synthetic direct dyes of the xanthene family, mention may be made in particular of xanthene, thioxanthene and pyronine dyes.
The nitro(hetero)aryl synthetic direct dyes are more particularly nitrobenzene or nitropyridine direct dyes.
Among the nitrobenzene direct dyes that may be used according to the invention, mention may be made in a nonlimiting manner of the following compounds:
- 1,4-diamino-2-nitrobenzene;
- 1-amino-2 nitro-4-P-hydroxyethylaminobenzene;
- 1-amino-2 nitro-4-bis(p-hydroxyethyl)aminobenzene;
- 1,4-bis(P-hydroxyethylamino)-2-nitrobenzene;
- 1-P-hydroxyethylamino-2-nitro-4-bis(p-hydroxyethylamino)benzene;
- 1-P-hydroxyethylamino-2-nitro-4-aminobenzene;
- 1-p-hydroxyethylamino-2-nitro-4-(ethyl)(P-hydroxyethyl)aminobenzene;
- 1-amino-3-methyl-4-p-hydroxyethylamino-6-nitrobenzene;
- 1-amino-2-nitro-4-p-hydroxyethylamino-5-chlorobenzene;
- 1,2-diamino-4-nitrobenzene;
- 1-amino-2-p-hydroxyethylamino-5-nitrobenzene;
- 1,2-bis(p-hydroxyethylamino)-4-nitrobenzene;
- 1-amino-2-tris(hydroxymethyl)methylamino-5-nitrobenzene;
- 1-hydroxy-2-amino-5-nitrobenzene;
- 1-hydroxy-2-amino-4-nitrobenzene;
- 1-hydroxy-3-nitro-4-aminobenzene;
- 1-hydroxy-2-amino-4,6-dinitrobenzene;

- 1-p-hydroxyethyloxy-2-p-hydroxyethylamino-5-nitrobenzene;
- 1-methoxy-2-p-hydroxyethylamino-5-nitrobenzene;
- 1-p-hydroxyethyloxy-3-methylamino-4-nitrobenzene;
- 1-p,y-dihydroxypropyloxy-3-methylamino-4-nitrobenzene;
- 1-p-hydroxyethylamino-4-p,y-dihydroxypropyloxy-2-nitrobenzene;
- 1-p,y-dihydroxypropylamino-4-trifluoromethyl-2-nitrobenzene;
- 1-p-hydroxyethylamino-4-trifluoromethyl-2-nitrobenzene;
- 1-p-hydroxyethylamino-3-methyl-2-nitrobenzene;
- 1-p-aminoethylamino-5-methoxy-2-nitrobenzene;
- 1-hydroxy-2-chloro-6-ethylamino-4-nitrobenzene;
- 1-hydroxy-2-chloro-6-amino-4-nitrobenzene;
- 1-hydroxy-6-bis(p-hydroxyethyl)amino-3-nitrobenzene;
- 1-p-hydroxyethylamino-2-nitrobenzene;
- 1-hydroxy-4-p-hydroxyethylamino-3-nitrobenzene.
Among the triarylmethane dyes that can be used according to the invention, mention may be made of the following compounds:
- Basic Green 1
- Basic Violet 3
- Basic Violet 14
- Basic Blue 7
- Basic Blue 26.
As regards the (metallo)porphyrin or phthalocyanine synthetic direct dyes, use may be made of cationic or non-cationic compounds, optionally comprising one or more metals or metal ions, for instance alkali metals and alkaline-earth metals, zinc and silicon.
Examples of particularly suitable synthetic direct dyes that may be mentioned include nitrobenzene dyes; azo, methine, azomethine, hydrazono or styryl direct dyes; azacarbocyanines such as tetraazacarbocyanines (tetraazapentamethines); quinone direct dyes, and in particular anthraquinone, naphthoquinone or benzoquinone direct dyes; azine direct dyes; xanthene direct dyes; triarylmethane direct

dyes; indoamine direct dyes, indigoid direct dyes, phthalocyanine direct dyes and porphyrin direct dyes, alone or as mixtures.
These dyes may be monochromophoric dyes (i.e. dyes
comprising only one dye) or polychromophoric, preferably
dichromophoric or trichromophoric, dyes; the chromophores may be identical or different, and from the same chemical family or otherwise. It should be noted that a polychromophoric dye comprises a plurality of groups each derived from a molecule that absorbs in the visible region between 400 and 800 nm. Furthermore, this absorbance of the dye does not require any prior oxidation thereof, or combination with one or more other chemical species.
In the case of polychromophoric dyes, the chromophores are connected together by means of at least one linker L, which may be cationic or non-cationic.
The linker L is preferably a linear, branched or cyclic C1-C20 alkyl chain which is optionally interrupted and/or terminated with at least i) a heteroatom (such as nitrogen N(R), N+R, R’, Q-, oxygen or sulfur), ii) a group C(O), C(S), S(O) or S(O)2 or iii) a combination thereof, optionally interrupted with at least one heterocycle which may or may not be fused to a phenyl nucleus, and which comprises at least one quaternized nitrogen atom forming part of said ring system, and optionally at least one other heteroatom (such as oxygen, nitrogen or sulfur), optionally interrupted with at least one substituted or unsubstituted phenyl or naphthyl group, optionally at least one quaternary ammonium group substituted with two C 1-C15 alkyl groups which are optionally substituted; the linker does not contain a nitro, nitroso or peroxo group, and R and R’, which may be identical or different, represent a hydrogen atom or a C1-C6 alkyl group which is optionally substituted, preferably with at least one hydroxyl group, and Q- represents an organic or mineral anionic counterion such as a halide or an alkyl sulfate.
If the heterocycles or aromatic nuclei are substituted, they are
substituted, for example, with one or more C1-C8 alkyl groups
optionally substituted with a hydroxyl, C 1-C2 alkoxy, C2-C4

hydroxyalkoxy, acetylamino or amino group substituted with one or two C1-C4 alkyl groups, optionally bearing at least one hydroxyl group, or the two groups possibly forming, with the nitrogen atom to which they are attached, a 5- or 6-membered heterocycle, optionally comprising another nitrogen or non-nitrogen heteroatom; a halogen atom; a hydroxyl group; a C1-C2 alkoxy group; a C2-C4 hydroxyalkoxy group; an amino group; an amino group substituted with one or two identical or different C1-C4 alkyl groups, optionally bearing at least one hydroxyl group.
According to one particularly advantageous embodiment of the invention, the dye(s) are chosen from (poly)azo dyes such as (di)azo dyes; hydrazono dyes; (poly)methine dyes such as styryl dyes; anthraquinone dyes or naphthalimide dyes. Preferably, these dyes are (poly)cationic.
According to an even more preferred embodiment of the invention, the dyes are chosen from cationic dyes known as “basic dyes”.
Mention may be made of the cationic hydrazono dyes of formulae (XIX) and (XIX’), the azo dyes (XX) and (XX’) and the diazo dyes (XXI) below:
Het+-C(Ra)=N-N(Rb)- Het+-N(Ra)-N=C(Rb)- Het+-N=N-Ar,
Ar, Q- Ar, Q- Q-
(XIX) (XIX’) (XX)
Ar+-N=N-Ar", Q- and Het+-N=N-Ar'
(XX’) -N=N-Ar, Q-
(XXI)
in which formulae (XIX), (XIX’), (XX), (XX’) and (XXI):
- Het+ represents a cationic heteroaryl group, preferably bearing an endocyclic cationic charge, such as imidazolium, indolium or pyridinium, optionally substituted with one or more C 1-C8 alkyl groups such as methyl;

- Ar+ represents an aryl group, such as phenyl or naphthyl, bearing an exocyclic cationic charge, preferentially ammonium, particularly tri(C1-C8 alkyl)ammonium such as trimethylammonium;
- Ar represents an aryl group, in particular phenyl, which is optionally substituted, preferentially with one or more electron-donating groups such as i) optionally substituted C 1-C8 alkyl, ii) optionally substituted C1-C8 alkoxy, iii) (di)(C1-C8 alkyl)amino optionally substituted on the alkyl group(s) with a hydroxyl group, iv) aryl(C1-C8 alkyl)amino, or v) optionally substituted N-(C1-C8 alkyl)-N-aryl(C1-C8 alkyl)amino, or alternatively Ar represents a julolidine group;
- Ar’ is an optionally substituted divalent (hetero)arylene group such as phenylene, particularly para-phenylene, or naphthalene, which are optionally substituted, preferably with one or more C 1-C8 alkyl, hydroxyl or C1-C8 alkoxy groups;
- Ar’’ is an optionally substituted (hetero)aryl group such as phenyl or pyrazolyl, which are optionally substituted, preferably with one or more C1-C8 alkyl, hydroxyl, (di)(C1-C8 alkyl)amino, C1-C8 alkoxy or phenyl groups;
- Ra and Rb, which may be identical or different, represent a hydrogen atom or a C1-C8 alkyl group, which is optionally substituted, preferentially with a hydroxyl group;
or alternatively the substituent Ra with a substituent of Het+ and/or Rb with a substituent of Ar form, together with the atoms that bear them, a (hetero)cycloalkyl;
particularly, Ra and Rb represent a hydrogen atom or a C1-C4 alkyl group, which is optionally substituted with a hydroxyl group;
- Q- represents an organic or mineral anionic counterion, such
as a halide or an alkyl sulfate.
In particular, the dyes of the invention are cationicall y charged, endocyclic, azo and hydrazono dyes of formulae (XIX), (XIX’) and (XX) as defined previously. The dyes of formulae (XIX), (XIX’) and (XX) described in patent applications WO 95/15144, WO 95/01772 and EP 714954 are more particularly preferred.

Dyes of the invention are preferably chosen from the following compounds:

in which formulae (XIX-1) and (XX-1):
- R1 represents a C1-C4 alkyl group such as methyl;
- R2 and R3, which may be identical or different, represent a hydrogen atom or a C1-C4 alkyl group such as methyl; and
- R4 represents a hydrogen atom or an electron-donating group such as optionally substituted C1-C8 alkyl, optionally substituted C1-C8 alkoxy, or (di)(C1-C8 alkyl)amino optionally substituted on the alkyl group(s) with a hydroxyl group; particularly, R4 is a hydrogen atom;
- Z represents a CH group or a nitrogen atom, preferentially CH;
- Q- is as defined previously.
In particular, the dyes of formulae (XIX-1) and (XX-1) are chosen from Basic Red 51, Basic Yellow 87 and Basic Orange 31 or their derivatives:


where Q- is as defined previously, and represents in particular a halide such as a chloride, or an alkyl sulfate such as methyl sulfate or mesityl.
Mention may also be made of 1-(4’-aminodiphenylazo)-2-methyl-4-bis(p-hydroxyethyl)aminobenzene.
Among the polychromophoric dyes, mention may be made more particularly of the symmetrical or non-symmetrical di- or trichromophoric azo and/or azomethine (hydrazone) dyes, comprising on the one hand at least one 5- or 6-membered aromatic heterocycle, optionally fused, which comprises at least one quaternized nitrogen atom forming part of said heterocycle, and optionally at least one other heteroatom (such as nitrogen, sulfur or oxygen), and, on the other hand, at least one optionally substituted phenyl or naphthyl group optionally bearing at least one group OR in which R represents a hydrogen atom, an optionally substituted C1-C6 alkyl group, an optionally substituted phenyl nucleus, or at least one group N(R’)2 with R’, which may be identical or different, representing a hydrogen atom, an optionally substituted C1-C6 alkyl group or an optionally substituted phenyl nucleus; the groups R’ possibly forming, with the nitrogen atom to which they are attached, a saturated 5- or 6-membered heterocycle, or else one and/or both of the groups R’ may each form a saturated 5- or 6-membered heterocycle with the carbon atom of the aromatic ring that is ortho to the nitrogen atom.
Aromatic cationic heterocycles that may preferably be mentioned include 5- or 6-membered rings containing 1 to 3 nitrogen atoms and preferably 1 or 2 nitrogen atoms, one being quaternized; said heterocycle moreover being optionally fused to a benzene nucleus. It should similarly be noted that the heterocycle may optionally comprise another heteroatom other than nitrogen, for instance sulfur or oxygen.
If the heterocycles or phenyl or naphthyl groups are substituted, they are substituted, for example, with one or more C1-C8 alkyl groups optionally substituted with a hydroxyl, C1-C2 alkoxy, C2-C4 hydroxyalkoxy, acetylamino or amino group substituted with one or two C1-C4 alkyl groups, optionally bearing at least one hydroxyl group, or the two groups possibly forming, with the nitrogen atom to which they

are attached, a 5- or 6-membered heterocycle, optionally comprising another nitrogen or non-nitrogen heteroatom; a halogen atom; a hydroxyl group; a C1-C2 alkoxy group; a C2-C4 hydroxyalkoxy group; an amino group; an amino group substituted with one or two identical or different C1-C4 alkyl groups, optionally bearing at least one hydroxyl group.
These polychromophores are connected together via at least one linker L as defined previously.
The bonding between the linker L and each chromophore generally takes place via a heteroatom substituent on the phenyl or naphthyl nucleus or via the quaternized nitrogen atom of the cationic heterocycle.
The dye may comprise identical or different chromophores.
As examples of such dyes, reference may be made in particular to patent applications EP 1 637 566, EP 1 619 221, EP 1 634 926, EP 1 619 220, EP 1 672 033, EP 1 671 954, EP 1 671 955, EP 1 679 312, EP 1 671 951, EP 167 952, EP 167 971, WO 06/063 866, WO 06/063 867, WO 06/063 868, WO 06/063 869, EP 1 408 919, EP 1 377 264, EP 1 377 262, EP 1 377 261, EP 1 377 263, EP 1 399 425, EP 1 399 117, EP 1 416 909, EP 1 399 116 and EP 1 671 560.
It is equally also possible to use cationic synthetic direct dyes which are mentioned in the following patent applications: EP 1 006 153, which describes dyes comprising two chromophores of anthraquinone type connected via a cationic linker; EP 1 433 472, EP 1 433 474, EP 1 433 471 and EP 1 433 473, which describe identical or different dichromophoric dyes, connected via a cationic or non-cationic linker, and also EP 6 291 333, which in particular describes dyes comprising three chromophores, one of them being an anthraquinone chromophore, to which are attached two chromophores of azo or diazacarbocyanine type or an isomer thereof.
The term "natural dyes" means any dye or dye precursor that is naturally occurring and that is produced either by extraction (and possibly purification) from a plant or animal matrix, optionally in the

presence of natural compounds such as ash or ammonia, or by chemical synthesis.
Natural dyes that may be mentioned include lawsone, henna, curcumin, chlorophyllin, alizarin, kermesic acid, purpurin, purpurogallin, indigo, Tyrian purple, sorghum, carminic acid, catechin, epicatechin, juglone, bixin, betanin, quercetin, chromene dyes and chroman dyes, including haematein and brazilein, and laccaic acids.
Preferably, the natural dyes used in the invention are chosen from curcumin, chlorophyllin, chromene dyes, chroman dyes and laccaic acids.
According to the invention, the terms "chromene dye" and "chroman dye" mean dyes which comprise in their structure at least one bicycle of formula (XXII) below:

the endocyclic bond — representing a carbon-carbon single bond or a carbon-carbon double bond, as illustrated by formula XXII-1 denoting the chromene family and formula XXII-2 denoting the chroman family below:

More particularly, the dyes having in their structure a bicycle of formula (XXII) are chosen from the dyes having the following formulae:

- formula (XXIII), comprising in its structure the bicycle of
formula XXII-2,

in which:
i) — represents a carbon-carbon single bond or a carbon-carbon double bond, the sequence of these — bonds denoting two carbon-carbon single bonds and two carbon-carbon double bonds, said bonds being conjugated,
ii) X represents a group:

iii) R1, R2, R3, R4, R5 and R6, which may be identical or different, represent, independently of each other, a hydrogen atom, a hydroxyl group, an optionally substituted alkyl group, an optionally substituted alkoxy group or an optionally substituted acyloxy group, and also the tautomeric and/or mesomeric forms thereof, the stereoisomers thereof, the addition salts thereof with a cosmetically acceptable acid or base, and the hydrates thereof, and
- formula (XXIV), comprising in its structure the bicycle of
formula XXII-1,


in which:
- R11, R12, R13, R16, R19 and R20, which may be identical or different, represent, independently of each other, a hydrogen atom or a C1-C4 alkyl group,
- R14, R15, R17 and R18, which may be identical or different, represent, independently of each other, a hydrogen atom, a hydroxyl group or a C1-C4 alkoxy group,
and also the tautomeric and/or mesomeric forms thereof, the stereoisomers thereof, the addition salts thereof with a cosmetically acceptable acid or base, and the hydrates thereof.
As regards the dyes of formula (XXIII) as defined previously, they may be in two tautomeric forms noted (XXIIIa) and (XXIIIb):

The alkyl groups mentioned in the preceding definitions of the substituents are linear or branched, saturated, generally C 1-C20, particularly C1-C10 and preferably C1-C6 hydrocarbon-based groups, such as methyl, ethyl, propyl, butyl, pentyl and hexyl.

The alkoxy groups are alkyl-oxy groups with alkyl groups as defined previously and preferably the alkoxy groups are C 1-C10, such as methoxy, ethoxy, propoxy and butoxy.
The alkyl or alkoxy groups, when they are substituted, may be substituted with at least one substituent borne by at least one carbon atom, chosen from:
- a halogen atom;
- a hydroxyl group;
- a C1-C2 alkoxy group;
- a C1-C10 alkoxycarbonyl group;
- a C2-C4 (poly)hydroxyalkoxy group;
- an amino group;
- a 5- or 6-membered heterocycloalkyl group;
- an optionally cationic 5- or 6-membered heteroaryl group, preferentially imidazolium, optionally substituted with a (C 1-C4)alkyl group, preferentially methyl;
- an amino group substituted with one or two identical or different C1-C6 alkyl groups, optionally bearing at least:
* one hydroxyl group;
* an amino group optionally substituted with one or two
optionally substituted C1-C3 alkyl groups, it being possible for said
alkyl groups to form, with the nitrogen atom to which they are attached,
a saturated or unsaturated and optionally substituted 5- to 7-membered
heterocycle, optionally comprising at least one other nitrogen or non -
nitrogen heteroatom,
* a quaternary ammonium group -N+R’R’’R’’’, M- for which R’, R’’ and R’’’, which may be identical or different, represent a hydrogen atom or a C1-C4 alkyl group; and M- represents the counterion of the corresponding organic or mineral acid or of the corresponding halide;
* or an optionally cationic 5- or 6-membered heteroaryl group, preferentially imidazolium, optionally substituted with a (C 1-C4) alkyl group, preferentially methyl;
- an acylamino group (-NR-COR') in which the group R is a
hydrogen atom or a C 1-C4 alkyl group optionally bearing at least one

hydroxyl group and the group R' is a C1-C2 alkyl group;
- a carbamoyl group ((R)2N-CO-) in which the groups R, which may be identical or different, represent a hydrogen atom or a C 1-C4 alkyl group optionally bearing at least one hydroxyl group;
- an alkylsulfonylamino group (R'SO2-NR-) in which the group R represents a hydrogen atom or a C1-C4 alkyl group optionally bearing at least one hydroxyl group and the group R' represents a C 1-C4 alkyl group, or a phenyl group;
- an aminosulfonyl group ((R)2N-SO2-) in which the groups R, which may be identical or different, represent a hydrogen atom or a C 1-C4 alkyl group optionally bearing at least one hydroxyl group;
- a carboxylic group in acid or salified form (preferably with an alkali metal or a substituted or unsubstituted ammonium);
- a cyano group;
- a nitro group;
- a carboxyl or glycosylcarbonyl group;
- a phenylcarbonyloxy group optionally substituted with one or more hydroxyl groups;
- a glycosyloxy group; and
- a phenyl group optionally substituted with one or more hydroxyl groups.
The term "glycosyl group" means a group originating from a mono- or polysaccharide.
Preferably, the alkyl or alkoxy groups of formula (XXIII) are unsubstituted.
According to one particular embodiment of the invention, the dyes of formula (XXIII) comprise a group R6 which represents a hydroxyl group.
In one preferred variant, X represents a group O=C.
Another particular embodiment of the invention relates to the dyes of formula (XXIII), for which the group R1 represents a hydrogen atom or a hydroxyl group.
More particularly, the dyes of formula (XXIII) are chosen from haematein and brazilein.


Brazilein is a conjugated form of a chroman compound of formula XXII-2. The tautomeric structures (XXIIIa) and (XXIIIb) illustrated above are found in the scheme below.

Brazilein and haematein or the haematoxylin/haematein and brazilin/brazilein pairings may be obtained synthetically or by extraction of plants known to be rich in these dyes.
The dyes of formula (XXIII) may be used in the form of extracts. Use may be made of the following plant extracts (genus and species): Haematoxylon campechianum, Haematoxylon brasiletto, Caesalpinia echinata, Caesalpinia sappan, Caesalpinia spinosa and Caesalpinia brasiliensis.
The extracts are obtained by extraction of various plant parts, such as, for example, the root, wood, bark or leaves.
According to a particular embodiment of the invention, the natural dyes of formula (XXIII) are obtained from logwood, pernambuco wood, sappan wood and Brazil wood.
The salts of the dyes of formulae (XXIII) and (XXIV) of the invention may be salts of cosmetically acceptable acids or bases.

The acids may be mineral or organic. Preferably, the acid is hydrochloric acid, which results in chlorides.
The bases may be mineral or organic. In particular, the bases are alkaline hydroxides, such as sodium hydroxide, resulting in sodium salts.
Preferably, the dye(s) of formulae (XXIII) and (XXIV) included in the composition according to the invention are derived from plant extracts. Use may also be made of mixtures of plant extracts.
The natural extracts of the dyes according to the invention may be in the form of powders or liquids. Preferably, the extracts are in powder form.
In another variant of the invention, the natural dyes are chosen from laccaic acids.
For the purposes of the present invention, the term "laccaic acid" means a compound having in its structure a unit of the type:

Preferably, the laccaic acids of the invention are of formula (XXV) below:

with R1 denoting a phenyl group substituted with at least one hydroxyl group, and preferably with a hydroxyl group that is advantageously in the ortho position relative to the bond attaching it to the fused nuclei.

In particular, the phenyl group R1 comprises, besides a hydroxyl group, at least one group -CH2R2, R2 denoting an acetamidomethyl (CH3CONHCH2-), hydroxymethyl (HOCH2-) or 2-aminoacetic acid (HO2C(NH2)CH-) group.
Preferentially, the laccaic acids of the invention are chosen from laccaic acids A, B, C and D, or mixtures thereof, and more particularly chosen from A, B and C, or mixtures thereof.

Laccaic acid A G: -CH2CH2NHC(O)CH3
Laccaic acid B G: -CH2CH2OH
Laccaic acid C G: -CH2CH(NH2)C(O)OH
Laccaic acid D G: -CH2CH2NH2
Laccaic acids A, B, C and D
A laccaic acid according to the invention that may in particular be used is the dye CI Natural Red 25, CI 75450, CAS - 60687-93-6, which is often referred to as laccaic acid. This is a dye of natural origin originating from the secretions of an insect, Coccus laccae (Lacifer Lacca Kerr), which is generally found on the twigs of certain trees native to South-East Asia.
CI Natural Red 25 generally contains two major constituents in its composition: laccaic acid A and laccaic acid B. It may also contain a small amount of laccaic acid C.
Needless to say, use may also be made of the purified forms of the laccaic acids of formula (XXV).

Even more preferentially, the natural direct dyes are chosen from haematein and brazilein.
Preferably, direct dyes are chosen from acidic (or anionic) direct dyes.
When it(they) is(are) present, the total amount of the direct dye(s) usually ranges from 0.01% to 10% by weight, and preferably from 0.01% to 5% by weight, still better from 0.05 to 4% by weight, better from 0.2 to 3%, more better from 0.4 to 2% by weight relative to the total weight of the composition of the invention.
Pigment(s)
For the purposes of the present invention, the term “pigment” means white or coloured particles of any form, which are insoluble in the medium of the composition and which give the composition a colour.
The pigments that may be used are especially chosen from the organic and/or mineral pigments known in the art, notably those described in Kirk-Othmer’s Encyclopedia of Chemical Technology and in Ullmann’s Encyclopedia of Industrial Chemistry.
They may be natural, of natural origin, or non-natural.
These pigments may be in pigment powder or paste form. They may be coated or uncoated.
The pigments may be chosen, for example, from mineral pigments, organic pigments, lakes, pigments with special effects such as nacres or glitter flakes, and mixtures thereof.
The pigment may be a mineral pigment. The term “mineral pigment” means any pigment that satisfies the definition in Ullmann’s encyclopedia in the chapter on inorganic pigments. Among the mineral pigments that are useful in the present invention, mention may be made of ochres such as red ochre (clay (in particular kaolinite) and iron hydroxide (for example hematite)), brown ochre (clay (in particular kaolinite) and limonite), yellow ochre (clay (in particular kaolinite) and goethite); titanium dioxide, optionally surface treated; zirconium oxide or cerium oxide; zinc oxide, iron oxide (black, yellow or red) or chromium oxide; manganese violet, ultramarine blue, chromium hydrate

and ferric blue; metal powders such as aluminum powder or copper powder.
Mention may also be made of alkaline-earth metal carbonates (such as calcium carbonate or magnesium carbonate), silicon dioxide, quartz and any other compound used as inert filler in cosmetic compositions, provided that these compounds contribute color or whiteness to the composition under the conditions under which they are employed.
The pigment may be an organic pigment. The term “organic pigment” means any pigment that satisfies the definition in Ullmann’s encyclopedia in the chapter on organic pigments.
The organic pigment may especially be chosen from nitroso,
nitro, azo, xanthene, pyrene, quinoline, anthraquinone,
triphenylmethane, fluorane, phthalocyanine, metal-complex,
isoindolinone, isoindoline, quinacridone, perinone, perylene,
diketopyrrolopyrrole, indigo, thioindigo, dioxazine, triphenylmethane and quinophthalone compounds.
Use may also be made of any mineral or organic compound that is insoluble in the composition and standard in the cosmetics field, provided that these compounds contribute color or whiteness to the composition under the conditions under which they are employed, for example guanine, which, according to the refractive index of the composition, is a pigment.
In particular, the white or colored organic pigments may be chosen from carmine, carbon black, aniline black, azo yellow, quinacridone, phthalocyanine blue, the blue pigments codified in the Color Index under the references CI 42090, 69800, 69825, 73000, 74100, 74160, the yellow pigments codified in the Color Index under the references CI 11680, 11710, 15985, 19140, 20040, 21100, 21108, 47000, 47005, the green pigments codified in the Color Index under the references CI 61565, 61570, 74260, the orange pigments codified in the Color Index under the references CI 11725, 15510, 4537 0, 71105, the red pigments codified in the Color Index under the references CI 12085, 12120, 12370, 12420, 12490, 14700, 15525, 15580, 15620, 15630,

15800, 15850, 15865, 15880, 17200, 26100, 45380, 45410, 58000,
73360, 73915, 75470, the pigments obtained by oxidative
polymerization of indole or phenol derivatives as described in patent FR 2 679 771.
Examples that may also be mentioned include pigment pastes of organic pigment, such as the products sold by the company Hoechst under the names:
- Cosmenyl Yellow IOG: Yellow 3 pigment (CI 11710);
- Cosmenyl Yellow G: Yellow 1 pigment (CI 11680);
- Cosmenyl Orange GR: Orange 43 pigment (CI 71105);
- Cosmenyl Red R: Red 4 pigment (CI 12085);
- Carmine Cosmenyl FB: Red 5 pigment (CI 12490);
- Cosmenyl Violet RL: Violet 23 pigment (CI 51319);
- Cosmenyl Blue A2R: Blue 15.1 pigment (CI 74160);
- Cosmenyl Green GG: Green 7 pigment (CI 74260);
- Cosmenyl Black R: Black 7 pigment (CI 77266).
The pigments in accordance with the invention may also be in the form of composite pigments, as described in patent EP 1 184 426. These composite pigments may be composed notably of particles comprising a mineral core, at least one binder, for attaching the organic pigments to the core, and at least one organic pigment which at least partially covers the core.
The organic pigment may also be a lake. The term “lake” means dyes adsorbed onto insoluble particles, the assembly thus obtained remaining insoluble during use.
The mineral substrates onto which the dyes are adsorbed are, for example, alumina, silica, calcium sodium borosilicate or calcium aluminum borosilicate and aluminum.
Among the dyes, mention may be made of carminic acid. Mention may also be made of the dyes known under the following names: D&C Red 21 (CI 45 380), D&C Orange 5 (CI 45 370), D&C Red 27 (CI 45 410), D&C Orange 10 (CI 45 425), D&C Red 3 (CI 45 430), D&C Red 4 (CI 15 510), D&C Red 33 (CI 17 200), D&C Yellow 5 (CI 19 140),

D&C Yellow 6 (CI 15 985), D&C Green (CI 61 570), D&C Yellow 10 (CI 47 005), D&C Green 3 (CI 42 053), D&C Blue 1 (CI 42 090).
An example of a lake that may be mentioned is the product known under the following name: D&C Red 7 (CI 15 850:1).
The pigment may also be a pigment with special effects. The term “pigments with special effects” means pigments that generally create a colored appearance (characterized by a certain shade, a certain vivacity and a certain level of luminance) that is non -uniform and that changes as a function of the conditions of observation (light, temperature, angles of observation, etc.). They thereby contrast with colored pigments, which afford a conventional opaque, semitransparent or transparent, uniform color.
Several types of pigment with special effects exist: those with a low refractive index, such as fluorescent or photochromic pigments, and those with a higher refractive index, such as nacres, interference pigments or glitter flakes.
Examples of pigments with special effects that may be mentioned include nacreous pigments such as mica coated with titanium or with bismuth oxychloride, colored nacreous pigments such as mica coated with titanium and iron oxides, mica coated with iron oxide, mica coated with titanium and especially with ferric blue or with chromium oxide, mica coated with titanium and with an organic pigment as defined above, and also nacreous pigments based on bismuth oxychloride. Nacreous pigments that may be mentioned include the Cellini nacres sold by Engelhard (mica-TiO2-lake), Prestige sold by Eckart (mica-TiO2), Prestige Bronze sold by Eckart (mica-Fe2O3), and Colorona sold by Merck (mica-TiO2-Fe2O3).
Mention may also be made of the gold-colored nacres sold especially by Engelhard under the name Brilliant gold 212G (Timica), Gold 222C (Cloisonne), Sparkle gold (Timica), Gold 4504 (Chromalite) and Monarch gold 233X (Cloisonne); the bronze nacres sold especially by Merck under the name Bronze fine (17384) (Colorona) and Bronze (17353) (Colorona) and by Engelhard under the name Super bronze (Cloisonne); the orange nacres sold especially by Engelhard under the

name Orange 363C (Cloisonne) and Orange MCR 101 (Cosmica) and by Merck under the name Passion orange (Colorona) and Matte orange (17449) (Microna); the brown-colored nacres sold especially by Engelhard under the name Nu-antique copper 340XB (Cloisonne) and Brown CL4509 (Chromalite); the nacres with a coppery glint sold especially by Engelhard under the name Copper 340A (Timica); the nacres with a red glint sold especially by Merck under the name Sienna fine (17386) (Colorona); the nacres with a yellow glint sold especially by Engelhard under the name Yellow (4502) (Chromalite); the red-colored nacres with a gold glint sold especially by Engelhard under the name Sunstone G012 (Gemtone); the pink nacres sold especially by Engelhard under the name Tan opale G005 (Gemtone); the black nacres with a gold glint sold especially by Engelhard under the name Nu antique bronze 240 AB (Timica), the blue nacres sold especially by Merck under the name Matte blue (17433) (Microna), the white nacres with a silvery glint sold especially by Merck under the name Xirona Silver, and the golden-green pink-orange nacres sold especially by Merck under the name Indian summer (Xirona), and mixtures thereof.
Still as examples of nacres, mention may also be made of particles comprising a borosilicate substrate coated with titanium oxide.
Particles comprising a glass substrate coated with titanium oxide are sold in particular under the name Metashine MC1080RY by the company Toyal.
Finally, as examples of nacres, mention may also be made of polyethylene terephthalate glitter flakes, especially those sold by the company Meadowbrook Inventions under the name Silver 1P 0.004X0.004 (silver glitter flakes).
It is also possible to envisage multilayer pigments based on synthetic substrates, such as alumina, silica, calcium sodium borosilicate or calcium aluminum borosilicate and aluminum.
The pigments with special effects may also be chosen from reflective particles, i.e. especially from particles whose size, structure, especially the thickness of the layer(s) of which they are made and their physical and chemical natures, and surface finish, allow them to reflect

incident light. This reflection may, where appropriate, have an intensity sufficient to create at the surface of the composition or of the mixture, when it is applied to the support to be made up, highlight points that are visible to the naked eye, i.e. more luminous points that contrast with their environment by appearing to sparkle.
The reflective particles may be selected so as not to significantly alter the coloring effect generated by the coloring agents with which they are combined, and more particularly so as to optimize this effect in terms of color rendition. They may more particularly have a yellow, pink, red, bronze, orange, brown, gold and/or coppery color or glint.
These particles may have varied forms and may especially be in platelet or globular form, in particular in spherical form.
Irrespective of their form, the reflective particles may or may not have a multilayer structure, and, in the case of a multilayer structure, may have, for example, at least one layer of uniform thickness, especially of a reflective material.
When the reflective particles do not have a multilayer structure, they may be composed, for example, of metal oxides, especially titanium or iron oxides obtained synthetically.
When the reflective particles have a multilayer structure, they may comprise, for example, a natural or synthetic substrate, especially a synthetic substrate at least partially coated with at least one layer of a reflective material, especially of at least one metal or metallic material. The substrate may be made of one or more organic and/or mineral materials.
More particularly, it may be chosen from glasses, ceramics, graphite, metal oxides, aluminas, silicas, silicates, especially aluminosilicates and borosilicates, and synthetic mica, and mixtures thereof, this list not being limiting.
The reflective material may comprise a layer of metal or of a metallic material.
Reflective particles are described especially in documents JP-A-09188830, JP-A-10158450, JP-A-10158541, JP-A-07258460 and JP-A-05017710.

Again as an example of reflective particles including a mineral substrate coated with a layer of metal, mention may also be made of particles including a silver-coated borosilicate substrate.
Particles with a silver-coated glass substrate, in the form of platelets, are sold under the name Microglass Metashine REFSX 2025 PS by the company Toyal. Particles with a glass substrate coated with nickel/chromium/molybdenum alloy are sold under the names Crystal Star GF 550 and GF 2525 by this same company.
Use may also be made of particles comprising a metal substrate, such as silver, aluminum, iron, chromium, nickel, molybdenum, gold, copper, zinc, tin, magnesium, steel, bronze or titanium, said substrate being coated with at least one layer of at least one metal oxide, such as titanium oxide, aluminum oxide, iron oxide, cerium oxide, chromium oxide, silicon oxides and mixtures thereof.
Examples that may be mentioned include aluminum powder, bronze powder or copper powder coated with SiO2 sold under the name Visionaire by Eckart.
Mention may also be made of pigments with an interference effect which are not attached to a substrate, such as liquid crystals (Helicones HC from Wacker) or interference holographic glitter flakes (Geometric Pigments or Spectra f/x from Spectratek). Pigments with special effects also comprise fluorescent pigments, whether these are substances that are fluorescent in daylight or that produce an ultraviolet fluorescence, phosphorescent pigments, photochromic pigments, thermochromic pigments and quantum dots, sold, for example, by the company Quantum Dots Corporation.
Quantum dots are luminescent semiconductor nanoparticles that are capable of emitting, under light excitation, radiation with a wavelength of between 400 nm and 700 nm. These nanoparticles are known from the literature. In particular, they may be synthesized according to the processes described, for example, in US 6 225 198 or US 5 990 479, in the publications cited therein and also in the following publications: Dabboussi B.O. et al., “(CdSe)ZnS core-shell quantum dots: synthesis and characterisation of a size series of highly

luminescent nanocrystallites”, Journal of Physical Chemistry B, vol. 101, 1997, pages 9463-9475, and Peng, Xiaogang et al., “Epitaxial growth of highly luminescent CdSe/CdS core/shell nanocrystals with photostability and electronic accessibility”, Journal of the American Chemical Society, vol. 119, No. 30, pages 7019-7029.
The variety of pigments that may be used in the present invention makes it possible to obtain a wide range of colors, and also particular optical effects such as metallic effects or interference effects.
The size of the pigment used in the dye composition according to the present invention is generally between 10 nm and 200 µm, preferably between 20 nm and 80 µm and more preferably between 30 nm and 50 µm.
The pigments may be dispersed in the product by means of a dispersant.
The dispersant serves to protect the dispersed particles against agglomeration or flocculation thereof. This dispersant may be a surfactant, an oligomer, a polymer or a mixture of several thereof, bearing one or more functionalities with strong affinity for the surface of the particles to be dispersed. In particular, they may become physically or chemically attached to the surface of the pigments. These dispersants also contain at least one functional group that is compat ible with or soluble in the continuous medium. In particular, 12-hydroxystearic acid esters in particular and C 8 to C20 fatty acid esters of polyols such as glycerol or diglycerol are used, such as poly(12 -hydroxystearic acid) stearate with a molecular weight of approximately 750 g/mol, such as the product sold under the name Solsperse 21 000 by Avecia, polyglyceryl-2 dipolyhydroxystearate (CTFA name) sold under the reference Dehymyls PGPH by Henkel, or else polyhydroxystearic acid such as the product sold under the reference Arlacel P100 by Uniqema, and mixtures thereof.
As other dispersants that may be used in the compositions of the invention, mention may be made of quaternary ammonium derivatives of polycondensed fatty acids, for instance Solsperse 17 00 0 sold by

Avecia, and polydimethylsiloxane/oxypropylene mixtures such as those sold by Dow Corning under the references DC2-5185 and DC2-5225 C.
The pigments used in the dye composition according to the invention may be surface treated with an organic agent.
Thus, the pigments that have been surface treated beforehand,
which are useful in the context of the invention, are pigments that have
totally or partially undergone a surface treatment of chemical,
electronic, electrochemical, mechanochemical or mechanical nature,
with an organic agent such as those described especially in Cosmetics
and Toiletries, February 1990, Vol. 105, pages 53-64, before being
dispersed in the composition in accordance with the invention. These
organic agents may be chosen, for example, from waxes, for example
carnauba wax and beeswax; fatty acids, fatty alcohols and derivatives
thereof, such as stearic acid, hydroxystearic acid, stearyl alcohol,
hydroxystearyl alcohol and lauric acid and derivatives thereof; anionic
surfactants; lecithins; sodium, potassium, magnesium, iron, titanium,
zinc or aluminum salts of fatty acids, for example aluminum stearate or
laurate; metal alkoxides; polyethylene; (meth)acrylic polymers, for
example polymethyl methacrylates; polymers and copolymers
containing acrylate units; alkanolamines; silicone compounds, for example silicones, polydimethylsiloxanes; organofluorine compounds, for example perfluoroalkyl ethers; fluorosilicone compounds.
The surface-treated pigments that are useful in the dye composition according to the invention may also have been treated with a mixture of these compounds and/or may have undergone several surface treatments.
The surface-treated pigments that are useful in the context of the present invention may be prepared according to surface-treatment techniques that are well known to those skilled in the art, or may be commercially available as is.
Preferably, the surface-treated pigments are coated with an organic layer.
The organic agent with which the pigments are treated may be deposited on the pigments by solvent evaporation, chemical reaction

between the molecules of the surface agent or creation of a covalent bond between the surface agent and the pigments.
The surface treatment may thus be performed, for example, by chemical reaction of a surface agent with the surface of the pigments and creation of a covalent bond between the surface agent and the pigments or the fillers. This method is notably described in patent US 4 578 266.
An organic agent covalently bonded to the pigments will preferably be used.
The agent for the surface treatment may represent from 0.1% to 50% by weight, preferably from 0.5% to 30% by weight and even more preferentially from 1% to 10% by weight of the total weight of the surface-treated pigment.
Preferably, the surface treatments of the pigments are chosen from the following treatments:
- a PEG-silicone treatment, for instance the AQ surface
treatment sold by LCW;
- a methicone treatment, for instance the SI surface treatm ent sold by LCW;
- a dimethicone treatment, for instance the Covasil 3.05 surface treatment sold by LCW;
- a dimethicone/trimethyl siloxysilicate treatment, for instance the Covasil 4.05 surface treatment sold by LCW;
- a magnesium myristate treatment, for instance the MM surface treatment sold by LCW;

- an aluminum dimyristate treatment, such as the MI surface treatment sold by Miyoshi;
- a perfluoropolymethylisopropyl ether treatment, for instance the FHC surface treatment sold by LCW;
- an isostearyl sebacate treatment, for instance the HS surface treatment sold by Miyoshi;
- a perfluoroalkyl phosphate treatment, for instance the PF
surface treatment sold by Daito;

- an acrylate/dimethicone copolymer and perfluoroalkyl
phosphate treatment, for instance the FSA surface treatment sold by
Daito;
- a polymethylhydrosiloxane/perfluoroalkyl phosphate
treatment, for instance the FS01 surface treatment sold by Daito;
- an acrylate/dimethicone copolymer treatment, for instance the ASC surface treatment sold by Daito;
- an isopropyl titanium triisostearate treatment, for instance the ITT surface treatment sold by Daito;
- an acrylate copolymer treatment, for instance the APD surface treatment sold by Daito;
- a perfluoroalkyl phosphate/isopropyl titanium triisostearate
treatment, for instance the PF + ITT surface treatment sold by Daito.
According to one particular embodiment of the invention, the dispersant is present with organic or mineral pigments in submicron -sized particulate form in the dye composition.
The term “submicron” is understood to mean pigments having a particulate size that has been micronized by a micronization method and having a mean particle size of less than a micrometer (µm), in particular between 0.1 and 0.9 µm, and preferably between 0.2 and 0.6 µm.
According to one embodiment, the dispersant and the pigment or pigments are present in an amount (dispersant:pigment) of between 0.5:1 and 2:1, particularly between 0.75:1 and 1.5:1 or better still between 0.8:1 and 1.2:1.
According to one particular embodiment, the dispersant is suitable for dispersing the pigments and is compatible with a condensation-curable formulation.
The term “compatible” is understood to mean, for example, that said dispersant is miscible in the oily phase of the composition or of the dispersion containing the pigment(s), and it does not retard or reduce the curing. The dispersant is preferably cationic.
The dispersant(s) may therefore have a silicone backbone, such as silicone polyether and dispersants of aminosilicone typ e. Among the suitable dispersants, mention may be made of:

- aminosilicones, i.e. silicones comprising one or more amino groups such as those sold under the names and references: BYK LPX 21879 by BYK, GP-4, GP-6, GP-344, GP-851, GP-965, GP-967 and GP-988-1, sold by Genesee Polymers,
- silicone acrylates such as Tego ® RC 902, Tego ® RC 922, Tego ® RC 1041, and Tego ® RC 1043, sold by Evonik,
- polydimethylsiloxane (PDMS) silicones with carboxyl groups such as X- 22162 and X-22370 by Shin-Etsu, epoxy silicones such as GP-29, GP-32, GP-502, GP-504, GP-514, GP-607, GP-682, and GP-695 by Genesee Polymers, or Tego ® RC 1401, Tego ® RC 1403, Tego ® RC 1412 by Evonik.
According to one particular embodiment, the dispersant(s) is (are) of aminosilicone type and are positively charged.
Preferably, pigments of the invention are selected from mineral or inorganic pigments.
Examples of mineral or inorganic pigments that may especially be mentioned include:
- white pigments such as titanium dioxide, zinc oxide, zirconium oxide and cerium oxide;
- coloured pigments such as red iron oxide, yellow iron oxide, black iron oxide, chromium oxide, chromium hydroxide, Prussian blue, ultramarine blue, chromium hydrate, ferric blue, inorganic blue pigments, carbon black, lower titanium oxides, manganese violet, cobalt violet, and metal powders such as aluminium powder and copper powder;
- nacreous pigments such as bismuth oxychloride, mica/titanium, essence of pearl, powder prepared by coating synthetic mica with titanium dioxide, powder prepared by coating silica flakes with titanium dioxide, which is available under the brand name Metashine from Nippon Sheet Glass Co., Ltd, powder prepared by coating alumina flakes with tin oxide and titanium dioxide, powder prepared by coating aluminium flakes with titanium dioxide, powder prepared by coating copper flakes with silica, sold by the company

Eckert Inc. USA, powder prepared by coating bronze flakes with silica, and powder prepared by coating aluminum flakes with silica;
When it(they) is(are) present, the total amount of pigment(s) usually ranges from 0.01% to 15% by weight, preferably from 0.05 to 10% by weight, still better from 0.1 to 5% by weight, better from 0.2 to 4%; even more preferentially from 0.3 to 2% by weight, relative to the total weight of the composition of the invention.
When it(they) is(are) present, the total amount of the inorganic pigment(s) usually ranges from 0.01% to 15% by weight, preferably from 0.05 to 10% by weight, still better from 0.1 to 5% by weight, better from 0.2 to 4%; even more preferentially from 0.3 to 2% by weight, relative to the total weight of the composition of the invention.
Preferably, the cosmetic composition is such that the direct dyes are present in a total amount ranging from 0.01% to 10% by weight, and preferably from 0.01% to 5% by weight, still better from 0.05 to 4% by weight better 0.2 to 3%, relative to the total weight of the cosmetic composition,
and/or the pigment(s) is(are) present in a total amount ranging from 0.01% to 15% by weight, preferably from 0.05 to 10% by weight, still better from 0.1 to 5% by weight, better from 0.2 to 4%, relative to the total weight of the composition.
Surfactant(s)
The cosmetic composition according to the present invention may further comprise one or more surfactants additional to the surfactants contained in the oil-in-water emulsion (a) described above.
Said surfactant(s) are preferably chosen from the group consisting of cationic, anionic, nonionic and amphoteric surfactants, or mixtures thereof.
Cationic surfactant(s)
The surfactants additional to the surfactants contained in the oil-in-water emulsion (a) may preferably be cationic surfactants.

The term "cationic surfactant" means a surfactant that is positively charged when it is contained in the composition according to the invention. This surfactant may bear one or more positive permanent charges or may contain one or more cationizable functions in the composition according to the invention.
The cationic surfactants are preferably chosen from primary, secondary or tertiary fatty amines, optionally polyoxyalkylenated, or salts thereof, and quaternary ammonium salts, and mixtures thereof.
The fatty amines generally comprise at least one C 8-C30 hydrocarbon-based chain, and preferably a C 12-C22 alkyl chain.
As example of fatty amines, mention may be made of stearamidopropyl dimethylamine.
Examples of quaternary ammonium salts that may especially be mentioned include:
- quaternary ammonium salts of general formula (XVII)

wherein,
R8 to R11, which may be identical or different, represent a linear or
branched aliphatic group comprising from 1 to 30 carbon atoms, or an
aromatic group such as aryl or alkylaryl, it being understood that at least
one of the groups R8 to R11 comprises from 12 to 22 carbon atoms, and
preferably from 16 to 22 carbon atoms; and
X- represents an organic or mineral anionic counterion, such as that
chosen from halides, acetates, phosphates, nitrates, (C 1-C4)alkyl
sulfates, (C1-C4)alkyl- or (C1-C4)alkylaryl sulfonates.
The aliphatic groups may comprise heteroatoms especially such as oxygen, nitrogen, sulfur and halogens. The aliphatic groups are chosen, for example, from C 1-C30 alkyl, C1-C30 alkoxy, polyoxy(C2-C6)alkylene, C1-C30 alkylamide, (C12-C22)alkylamido(C2-C6)alkyl, (C12-

C22)alkyl acetate and C1-C30 hydroxyalkyl groups; X- is an anion chosen from the group of halides, phosphates, acetates, lactates, (C 1-C4)alkyl sulfates, and (C1-C4)alkyl- or (C1-C4)alkylarylsulfonates.
Among the quaternary ammonium salts of formula (XVII), those
that are preferred are, on the one hand, tetraalkylammonium salts, for
instance dialkyldimethylammonium or alkyltrimethylammonium salts in
which the alkyl group contains approximately from 16 to 22 carbon
atoms, in particular behenyltrimethylammonium,
distearyldimethylammonium, cetyltrimethylammonium or
benzyldimethylstearylammonium salts, or, on the other hand, the
palmitylamidopropyltrimethylammonium salt, the
stearamidopropyltrimethylammonium salt, the
stearamidopropyldimethylcetearylammonium salt, or the
stearamidopropyldimethyl(myristyl acetate)ammonium salt sold under the name Ceraphyl® 70 by the company Van Dyk. It is particularly preferred to use the chloride salts of these compounds.
- quaternary ammonium salts of imidazoline, for instance, those of formula (XVIII)

wherein, R12 represents an alkyl or alkenyl group comprising from 8 to 30 carbon atoms, derived for example from tallow fatty acids, R 13 represents a hydrogen atom, a C1-C4 alkyl group or an alkyl or alkenyl group comprising from 8 to 30 carbon atoms, R 14 represents a C1-C4 alkyl group, R15 represents a hydrogen atom or a C 1-C4 alkyl group; X-is an anion chosen from the group of halides, phosphates, acetates, lactates, alkyl sulfates, alkyl- or alkylarylsulfonates in which the alkyl

and aryl groups each preferably comprise from 1 to 20 carbon atoms and from 6 to 30 carbon atoms.
R12 and R13 preferably denote a mixture of alkyl or alkenyl groups containing from 12 to 21 carbon atoms, derived for example from tallow fatty acids, R 14 preferably denotes a methyl group, and R15 preferably denotes a hydrogen atom. Such a product is sold, for example, under the name Rewoquat® W 75 by the company Rewo;
- di- or tri-quaternary ammonium salts, in particular of formula
(XIX)

wherein, R16 denotes an alkyl radical comprising approximately from 16 to 30 carbon atoms which is optionally hydroxylated and/or interrupted by one or more oxygen atoms, R 17 is chosen from hydrogen and an alkyl radical comprising from 1 to 4 carbon atoms and an (R 16a)(R17a)(R18a)N-(CH2)3 group, R16a, R17a, R18a, R18, R19, R20 and R21, which may be identical or different, are chosen from hydrogen and an alkyl radical comprising from 1 to 4 carbon atoms and X- is an anion chosen from the group of halides, acetates, phosphates, nitrates and methyl sulfates.
Such compounds are, for example, Finquat CT-P, available from the company Finetex (Quaternium 89), and Finquat CT, available from the company Finetex (Quaternium 75),
- quaternary ammonium salts containing at least one ester
function, such as those of formula (XX)
IX)

wherein,

R22 is chosen from C1-C6 alkyl groups and C1-C6 hydroxyalkyl or dihydroxyalkyl groups; R23 is chosen from:
- the group
- groups R27, which are linear or branched, saturated or
unsaturated C1-C22 hydrocarbon-based groups,
- a hydrogen atom, R25 is chosen from:
- the group
- groups R29, which are linear or branched, saturated or
unsaturated C1-C6 hydrocarbon-based groups,
- a hydrogen atom,
R24, R26 and R28, which may be identical or different, are chosen from
linear or branched, saturated or unsaturated C 7-C21 hydrocarbon-based
groups;
r, s and t, which may be identical or different, are integers ranging from
2 to 6;
y is an integer ranging from 1 to 10;
x and z, which may be identical or different, are integers ranging from
0 to 10;
X- is a simple or complex, organic or mineral anion;
with the proviso that the sum x + y + z is from 1 to 15, that when x is 0
then R23 denotes R27, and that when z is 0 then R 25 denotes R29.
The alkyl groups R22 may be linear or branched, and more particularly linear.
Preferably, R22 denotes a methyl, ethyl, hydroxyethyl or dihydroxypropyl group, and more particularly a methyl or ethyl group.
Advantageously, the sum x + y + z is from 1 to 10.
When R23 is an R27 hydrocarbon-based group, it may be long and may contain from 12 to 22 carbon atoms, or may be short and may have from 1 to 3 carbon atoms.

When R25 is an R29 hydrocarbon-based group, it preferably contains 1 to 3 carbon atoms.
Advantageously, R24, R26 and R28, which may be identical or different, are chosen from linear or branched, saturated or unsaturated C11-C21 hydrocarbon-based groups, and more particularly from linear or branched, saturated or unsaturated C 11-C21 alkyl and alkenyl groups.
Preferably, x and z, which may be identical or different, are equal to 0 or 1.
Advantageously, y is equal to 1.
Preferably, r, s and t, which may be identical or different, are equal to 2 or 3, and even more particularly are equal to 2.
The anion X- is preferably a halide (chloride, bromide or iodide) or an alkyl sulfate, more particularly methyl sulfate. However, use may be made of methanesulfonate, phosphate, nitrate, tosylate, an anion derived from an organic acid, such as acetate or lactate, or any other anion compatible with the ammonium containing an ester function.
The anion X- is even more particularly chloride or methyl sulfate.
Use is made more particularly in the composition according to the invention of the ammonium salts of formula (XX) wherein: R22 denotes a methyl or ethyl group; x and y are equal to 1; z is equal to 0 or 1; r, s and t are equal to 2; R23 is chosen from:
- the group
- methyl, ethyl or C14-C22 hydrocarbon-based groups;
- a hydrogen atom; R25 is chosen from:
- the group
- a hydrogen atom;

R24, R26 and R28, which may be identical or different, are chosen from linear or branched, saturated or unsaturated C 13-C17 hydrocarbon-based groups, and preferably from linear or branched, saturated or unsaturated C13-C17 alkyl and alkenyl groups.
The hydrocarbon-based groups are advantageously linear.
Mention may be made, for example, of the compounds of formula
(XX) such as the diacyloxyethyldimethylammonium,
diacyloxyethylhydroxyethylmethylammonium, monoacyloxyethyldihydroxyethylmethylammonium,
triacyloxyethylmethylammonium and
monoacyloxyethylhydroxyethyldimethylammonium salts (chloride or methyl sulfate in particular), and mixtures thereof. The acyl groups preferably contain 14 to 18 carbon atoms and are obtained more particularly from a plant oil, such as palm oil or sunflower oil. When the compound contains several acyl groups, these groups may be identical or different.
These products are obtained, for example, by direct
esterification of triethanolamine, triisopropanolamine, an
alkyldiethanolamine or an alkyldiisopropanolamine, which are
optionally oxyalkylenated, with C 10-C30 fatty acids or with mixtures of
C10-C30 fatty acids of plant or animal origin, or by transesterification of
the methyl esters thereof. This esterification is followed by
quaternization using an alkylating agent such as an alkyl (preferably
methyl or ethyl) halide, a dialkyl (preferably methyl or ethyl) sulfate,
methyl methanesulfonate, methyl para-toluenesulfonate, glycol
chlorohydrin or glycerol chlorohydrin.
Such compounds are, for example, sold under the names Dehyquart® by the company Henkel, Stepanquat® by the company Stepan, Noxamium® by the company Ceca or Rewoquat® WE 18 by the company Rewo-Witco.
The composition according to the invention may contain, for example, a mixture of quaternary ammonium monoester, diester and triester salts with a weight majority of diester salts.

Use may also be made of the ammonium salts containing at least one ester function that are described in patents US-A-4 874 554 and US-A-4 137 180.
Use may be made of behenoylhydroxypropyl
trimethylammonium chloride, provided by Kao under the name Quatarmin BTC 131.
Preferably, the ammonium salts containing at least one ester function contain two ester functions.
Among the quaternary ammonium salts containing at least one ester function, which may be used, it is preferred to use dipalmitoylethylhydroxyethylmethylammonium salts.
Anionic surfactant(s)
The surfactants additional to the surfactants contained in the oil-in-water emulsion (a) may be anionic surfactants.
The term "anionic surfactant" means a surfactant comprising, as ionic or ionizable groups, only anionic groups. In the present application, a species is termed as being "anionic" when it bears at least one permanent negative charge or when it can be ionized as a negatively charged species, under the conditions of use of the composition of the invention (for example the medium or the pl) and not comprising any cationic charge.
The anionic surfactants may be sulfate, sulfonate and/or carboxylic (or carboxylate) surfactants. Needless to say, a mixture of these surfactants may be used.
The carboxylic anionic surfactants that may be used thus comprise at least one carboxylic or carboxylate function (-COON or
-COO- ).
They may be chosen from the following compounds: acylglycinates, acyllactylates, acylsarcosinates, acylglutamates; alkyl-D-galactosideuronic acids, alkyl ether carboxylic acids, alkyl(С6-30 aryl) ether carboxylic acids, alkylamido ether carboxylic acids; and also the salts of these compounds; the alkyl and/or acyl groups of these compounds comprising from 6 to 30 carbon atoms, especially from 12

to 28, better still from 14 to 24 or even from 16 to 22 carbon atoms; the aryl group preferably denoting a phenyl or benzyl group; these compounds possibly being polyoxyalkylenated, especially polyoxyethylenated, and then preferably comprising from 1 to 50 ethylene oxide units and better still from 2 to 10 ethylene oxide units.
Use may also be made of the C6-C24 alkyl monoesters of polyglycoside-polycarboxylic acids, such as C6-C24 alkyl polyglycoside-citrates, C6-C24 alkyl polyglycoside-tartrates and C6-C24 alkyl polyglycoside-sulfosuccinates, and salts thereof.
Among the above carboxylic surfactants, mention may be made most particularly of polyoxyalkylenated alkyl(amido) ether carboxylic acids and salts thereof, in particular those comprising from 2 to 50 alkylene oxide and in particular ethylene oxide groups, such as the compounds sold by the company Kao under the name Akypo,
The polyoxyalkylenated alkyl (amido) ether carboxylic acids that may be used are preferably chosen from those of formula (XXI):
R(OC2Н4)OСН2COOA (XXI)
formula (XXI), in which:
- R represents a linear or branched C6-C24 alkyl or alkenyl radical, an alkyl(C8-C9)aryl radical, a radical R2CONНCН2CН2- with R2 denoting a linear or branched C9-C21 alkyl or alkenyl radical, preferably, R is a C8-C20 and preferably C8-C18 alkyl radical, and aryl preferably denotes phenyl,
- n is an integer or decimal number (average value) ranging from 2 to 24 and preferably from 2 to 10,
- A denotes Н, ammonium, Na, K, Li, Mg or a monoethanolamine or triethanolamine residue.
It is also possible to use mixtures of compounds of formula (XXI), in particular mixtures of compounds containing different groups R.
The polyoxyalkylenated alkyl(amido) ether carboxylic acids that are particularly preferred are those of formula (1) in which:
- R denotes a C12-C14 alkyl, cocoyl, oleyl, nonylphenyl or octylphenyl
radical,

- A denotes a hydrogen or sodium atom, and
- n ranges from 2 to 20 and preferably from 2 to 10.
Even more preferentially, use is made of compounds of formula (XXI) in which R denotes a C12 alkyl radical, A denotes a hydrogen or sodium atom and n ranges from 2 to 10.
Preferentially, the carboxylic anionic surfactants are chosen, alone or as a mixture, from:
- acylglutamates, especially of C6-C24 or even C12-C20, such as stearoylglutamates, and in particular disodium stearoylglutamate;
- acylsarcosinates, especially of C6-C24 or even C12-C20, such as palmitoylsarcosinates, and in particular sodium palmitoylsarcosinate;
- acyllactylates, especially of C12-C28 or even C14-C24, such as behenoyllactylates, and in particular sodium behenoyllactylate;

- C6-C24 and especially C12-C20 acylglycinates;
- (C6-C24)alkyl ether carboxylates and especially (C12-C20)alkyl ether carboxylates;
- polyoxyalkylenated (С6-C24)alkyl(amido) ether carboxylic acids, in particular those comprising from 2 to 50 ethylene oxide groups;
in particular in the form of alkali metal or alkaline-earth metal, ammonium or amino alcohol salts.
The sulfonate anionic surfactants that may be used comprise at least one sulfonate function (-SO3H or -SO3).
They may be chosen from the following compounds: alkylsulfonates, alkyla-midesulfonates, alkylarylsulfonates,