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: PROCESS FOR TREATING KERATIN FIBRES COMPRISING
APPLYING TO SAID KERATIN FIBRES A SUBSTRATE IMPREGNATED WITH A PARTICULAR COMPOSITION
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 process for treating keratin fibres, preferably hair, comprising applying to said keratin fibres a substrate impregnated with a particular composition.
The present invention also relates to a cosmetic product
comprising a substrate impregnated with one specific
composition comprising at least talc and perlite, in specific contents.
Cosmetic wipes are generally composed of a substrate made of a material of natural or synthetic origin, which is preferably a non-woven material but which can also be a foam or woven material, the substrate being impregnated with a composition suitable for the desired objective, for example cleaning or removing make-up from the skin or eyes or also caring for the skin or hair, such as treating hair.
Such wipes are commonly used as they are valued for their practical side owing to the fact that they are disposable and that they are impregnated with the necessary and sufficient amount of treating or cleaning product.
When it comes to keratin fibres, in particular hair, the latter are generally treated by using a surfactant-based shampoo followed by a step for rinsing with water.
These bottles of shampoo need to be produced,
manufactured and then distributed all over the world. Therefore,
they need to be handled and transported. Furthermore, shampoos
are contained in plastic bottles. Thus, they are not
environmentally friendly.
Moreover, water needs to be used to rinse keratin fibres.
In addition, the colored keratin fibers, such as hair, are
conventionally treated with shampoos and conditioners for
cleansing and other cosmetic benefits (manageability,
smoothness and shine for example). This usually leads to color fading due to the surfactant present in the systems formed by shampoos and conditioners, along with the water rinsing.

As such, there is a need to find an alternative to the use of shampoos for treating keratin fibres, such as hair, to reach a positive impact on the environment, and to prevent color fading, while having cosmetic benefits.
The Applicant has now discovered that a process for treating keratin fibres, preferably human keratin fibres, such as hair, comprising applying to said keratin fibres a particular substrate, makes it possible to cleanse said keratin fibres, in particular removes sebum, dirt and/or dust from keratin fibres, prevent color fading, while conferring good cosmetic properties, notably in terms of frizz control and smoothness.
Thus, the subject of the present invention is a process for treating keratin fibres, preferably human keratin fibres, such as hair, comprising applying to said keratin fibres a substrate impregnated with an aqueous composition comprising at least talc and/or perlite.
The use of the substrates, such as wipes, for treating keratin fibres, preferably human keratin fibres, such as hair, offers an interesting advantage as it avoids the handling and transportation of bottles comprising cosmetic compositions.
Moreover, thanks to the process according to the invention, the hair treated present good cosmetic properties, notably in terms of frizz control and smoothness, while removing sebum, dirt and/or dust from keratin fibres.
When used on colored hair, the process according to the invention reduces significantly color fading compared to classical shampoos.
The process according to the present invention makes it also possible to maintain the integrity of the keratin fibres.
The invention also relates to a cosmetic product comprising a substrate impregnated with an aqueous composition comprising at least talc and perlite.
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".
As indicated above, the process for treating keratin fibres, preferably human keratin fibres, such as hair, comprises applying to said keratin fibres a substrate impregnated with an aqueous composition comprising at least talc and/or perlite.
Substrate
According to one embodiment, said substrate is a water insoluble substrate.
"Water insoluble" is defined herein as a substrate that does not dissolve in or readily break apart upon immersion in water.
Preferably, said substrate is a fibrous substrate.
Advantageously, said fibrous substrate comprises at least a fibrous layer. It comprises for example woven fibres, knitted fibres, non-woven fibres, paper, a polymeric film and/or a polymeric mesh.
Advantageously, the substrate comprises at least one fibrous layer of non-woven fibres. In a preferred embodiment, the substrate is made of a non-woven material.
Preferably, the substrate is a fibrous layer, more preferably a nonwoven fibres substrate, even more preferably a wipe.
By "non-woven", it is meant, in the sense of this invention, a solid substrate or support including fibres in which the individual fibres or filaments are arranged in a disordered manner in a sheet-like structure and which are neither woven nor knitted.
The fibres of the nonwoven body are generally linked to one another, under the effect of a mechanical action (for example, by needle-punching, air jet, water jet, etc.), or under

the effect of a thermal action, or by adding a binder. Such a non-woven material is, for example, defined by standard ISO 9092, as a web or a sheet of fibres oriented directionally or at random, bound by friction and/or cohesion and/or adhesion, excluding paper or products obtained by weaving, knitting, tufting or stitching incorporating threads or bonding filaments.
A non-woven material differs from a paper by the length of the fibres used. In paper, the fibres are shorter. However, there are nonwoven materials based on cellulose fibres that are produced by wet process and have short fibres as in paper. The difference between a nonwoven material and a paper is generally the absence of a hydrogen bond between the fibres in a nonwoven material.
The fibres can be natural fibres, synthetic fibres or mixtures thereof.
Non limiting examples of synthetic fibres are polyester,
polyolefin (polypropylene, polyethylene), polyamide (Nylon 6,
Nylon 66), viscose, acrylic fibres, modacrylic fibres,
polyvinylidene chloride and Spandex.
Example of natural fibre includes cellulosic fibres (such as wood pulp, cotton, hemp, jute, and flax fibres), silk, and keratin (such as wool and camel hair fibres).
Preferably, the fibres are synthetic fibres.
According to one particular embodiment, the substrate is a cellulosic substrate. More particularly, the substrate is a non -woven viscose substrate.
Preferably, the substrate has an embossed structure.
The size of the substrate may have a surface ranging from 10 to 700 cm2, preferably from 100 to 500 cm2, more preferably from 200 to 450 cm2.
According to one embodiment, the substrate has a density of from 30 to 400 g/m2, preferably from 40 to 200 g/m2, more preferably from 60 to 140 g/m2, even more preferably from 80 to 120 g/m2.

As indicated above, the process for treating keratin fibres, preferably human keratin fibres, such as hair, comprises applying to said keratin fibres a substrate impregnated with an aqueous composition comprising at least talc and/or perlite.
Composition
As such, the substrate is impregnated with a particular aqueous composition.
“Aqueous composition” means that the composition comprises water.
Preferably, the aqueous composition comprises at least water, wherein the content of water is more than or equal to 70% by weight, preferably more than or equal to 80% by weight, more preferably more than or equal to 90% by weight relative to the total weight of the aqueous composition.
As indicated above, the composition can comprise talc.
When it is present, the content of talc, can range from 0.05 to 10% by weight, preferably from 0.1 to 5% by weight, more preferably from 0.5 to 2% by weight relative to the total weight of the aqueous composition.
Preferably, the aqueous composition comprises talc.
As indicated above, the aqueous composition can comprise perlite.
When it is present, the content of perlite can range from 0.05 to 5% by weight, preferably from 0.1 to 3% by weight, more preferably from 0.2 to 1.5% by weight relative to the total weight of the aqueous composition.
Preferably, the aqueous composition comprises perlite.
According to one preferred embodiment, the aqueous composition comprises talc and perlite.
More preferably, the aqueous composition comprises:
- talc in a content ranging from 0.05 to 10% by weight, preferably from 0.1 to 5% by weight, more preferably from 0.5 to 2% by weight relative to the total weight of the aqueous composition, and

- perlite in a content ranging from 0.05 to 5% by weight, preferably from 0,1 to 3% by weight, more preferably from 0.2 to 1,5% by weight relative to the total weight of the aqueous composition.
Preferably, the aqueous composition further comprises menthol.
The aqueous composition can further comprise one or more thickening agent(s).
Preferably, thickening agents are chosen from thickening polymers.
The term "thickening polymer" is understood to mean, within the meaning of the present invention, a polym er capable, by its presence, of increasing the viscosity of the medium by at least 50 centipoises at 25ºC and at a shear rate of 1 s-1. Preferably, the solution obtained by dissolving the thickening polymer at 1% by weight in water or in a 50/50 by weight water/alcohol mixture exhibits a viscosity at 25°C and at a shear rate of 1 s-1, which is greater than 100 centipoises. These viscosities can be measured using in particular viscometers or rheometers having cone-plate geometry.
Preferably, the thickening polymer(s) are chosen from the thickening polymers comprising acrylic and/or methacrylic units.
The term "polymer comprising acrylic and/or methacrylic units" is understood to mean, within the meaning of the present invention, a polymer resulting from the polymerization of one or more monomers including one or more monomers of structure (II):
(II),
- R1 denoting a hydrogen atom or a linear or branched C 1-C4
alkyl radical,

- R2 denoting a hydrogen atom, a hydroxy radical, a linear or branched C1-C4 alkyl radical, an NR3R4 radical or a linear or branched C1-C30 alkoxy radical, optionally substituted by one or more hydroxyl radicals or by a quaternary ammonium radical,
- R3 and R4 denoting a hydrogen atom or an optionally oxyalkylenated C1-C30 alkyl radical, it being possible for the alkyl radical to comprise a sulfonic group.
Preferably, R1 denotes a hydrogen atom or a methyl radical.
The thickening polymer(s) is (are) preferably chosen from thickening polymers comprising acrylic and/or methacrylic units, and more preferably from:
(a) acrylic associative thickeners,
(b) crosslinked acrylic acid homopolymers and copolymers,
(c) crosslinked copolymers of (meth)acrylic acid and of (C 1-
C6)alkyl acrylate,
(d) non-ionic homopolymers and copolymers comprising
ethylenically unsaturated monomers of ester and/or amide type,
(e) ammonium acrylate homopolymers or copolymers of
ammonium acrylate and of acrylamide,
(f) (meth)acrylamido(C1-C4)alkylsulfonic acid homopolymers
and copolymers,
(g) crosslinked methacryloyloxy(C1-C4)alkyltri(C1-
C4)alkylammonium homopolymers and copolymers, and
(h) mixtures thereof.
(a) The thickening polymers can preferably be chosen from acrylic associative thickeners.
The term "associative thickener" is understood to mean, according to the invention, an amphiphilic thickener comprising both hydrophilic units and hydrophobic units, in particular comprising at least one C 8-C30 fatty chain and at least one hydrophilic unit.
Mention may be made, as acrylic associative thickeners which can be used in the composition according to the invention, of acrylic associative polymers chosen from:

(i) non-ionic amphiphilic polymers comprising at least one fatty
chain and at least one hydrophilic unit;
(ii) anionic amphiphilic polymers comprising at least one
hydrophilic unit and at least one unit having a fatty chain;
(iii) cationic amphiphilic polymers comprising at least one
hydrophilic unit and at least one unit having a fatty chain;
(iv) amphoteric amphiphilic polymers comprising at least one
hydrophilic unit and at least one unit having a fatty chain;
the fatty chains having from 8 to 30 carbon atoms.
(i) The acrylic associative polymers may preferably be chosen from non-ionic amphiphilic polymers comprising at least one fatty chain and at least one hydrophilic unit; the fatty chains having from 8 to 30 carbon atoms.
These non-ionic amphiphilic polymers can preferably be chosen from:
- copolymers of C1-C6 alkyl methacrylates or acrylates and of amphiphilic monomers comprising at least one fatty chain (for example oxyethylenated (C8-C22)alkyl acrylates), such as, for example, the oxyethylenated methyl methacrylate/stearyl acrylate copolymer sold by Goldschmidt under the name Antil 208; and
- copolymers of hydrophilic methacrylates or acrylates and of hydrophobic monomers comprising at least one fatty chain (for example (C8-C22)alkyl (meth)acrylates), such as, for example, polyethylene glycol methacrylate/lauryl methacrylate copolymer.
(ii) The acrylic associative polymers may preferably be chosen from anionic amphiphilic polymers comprising at least one hydrophilic unit and at least one unit having a fatty chain; the fatty chains having from 8 to 30 carbon atoms.
These anionic amphiphilic polymers can be chosen from those comprising at least one hydrophilic unit of unsaturated olefinic carboxylic acid type and at least one hydrophobic unit of unsaturated carboxylic acid (C 10-C30)alkyl ester type. They are preferably chosen from those for which the hydrophilic unit

of unsaturated olefinic carboxylic acid type corresponds to the monomer of following formula (III):
(III)
in which, R3 denotes H or CH3 or C2H5, that is to say acrylic acid, methacrylic acid or ethacrylic acid units, and for which the hydrophobic unit of unsaturated carboxylic acid (C 10-C30)alkyl ester type corresponds to the monomer of following formula (IV):
(IV)
in which, R4 denotes H or CH3 or C2H5 (that is to say acrylate, methacrylate or ethacrylate units) and preferably H (acrylate units) or CH3 (methacrylate units), R5 denoting a C10-C30 and preferably C12-C22 alkyl radical.
(C10-C30)alkyl esters of unsaturated carboxylic acids in accordance with the invention comprise, for example, lauryl acrylate, stearyl acrylate, decyl acrylate, isodecyl acrylate and dodecyl acrylate, and the corresponding methacrylates, lauryl methacrylate, stearyl methacrylate, decyl methacrylate, isodecyl methacrylate and dodecyl methacrylate.
Anionic amphiphilic polymers of this type are, for example, described and prepared according to Patents US-3 915 921 and US-4 509 949.
The anionic amphiphilic polymers which can be used in the context of the present invention can more particularly denote polymers formed from a mixture of monomers comprising: - acrylic acid and one or more esters of following formula (V):

(V)
in which, R6 denotes H or CH3, R7 denoting an alkyl radical having from 12 to 22 carbon atoms, and a crosslinking agent, such as, for example, those constituted of from 95% to 60% by weight of acrylic acid (hydrophilic unit), 4% to 40% by weight of C10-C30 alkyl acrylate (hydrophobic unit) and 0% to 6% by weight of crosslinking polymerizable monomer, or 98% to 96% by weight of acrylic acid (hydrophilic unit), 1% to 4% by weight of C10-C30 alkyl acrylate (hydrophobic unit) and 0.1% to 0.6% by weight of crosslinking polymerizable monomer, and
essentially acrylic acid and lauryl methacrylate, such as the product formed from 66% by weight of acrylic acid and 34% by weight of lauryl methacrylate.
The said crosslinking agent is a monomer comprising a
group with at least one other polymerizable group, the unsaturated bonds of which are non-conjugated with respect to one another. Mention may in particular be made of polyallyl ethers, such as, in particular, polyallyl sucrose and polyallyl pentaerythritol.
Among the said polymers above, preference is very particularly given, according to the present invention, to the products sold by Goodrich under the trade names Pemulen TR1, Pemulen TR2 and Carbopol 1382, and more preferably still Pemulen TR1, and to the product sold by S.E.P.C. under the name Coatex SX.
Mention may also be made, as anionic amphiphilic polymers having fatty chains, of the copolymer of methacrylic acid, methyl acrylate and dimethyl-meta-isopropenylbenzyl isocyanate of ethoxylated alcohol sold under the name Viscophobe DB 1000 by Amerchol.
Mention may be made, as other anionic amphiphilic polymers having fatty chains, of those comprising at least one

acrylic monomer having sulfonic group(s), in free or partially or completely neutralized form, and comprising at least one hydrophobic portion.
The hydrophobic portion present in the polymers of the invention preferably comprises from 8 to 22 carbon atoms, more preferably still from 8 to 18 carbon atoms and more particularly from 12 to 18 carbon atoms.
Preferably, the sulfonic polymers in accordance with the
invention are partially or completely neutralized by an inorganic
base (sodium hydroxide, potassium hydroxide or aqueous
ammonia) or an organic base, such as mono-, di- or
triethanolamine, an aminomethylpropanediol, N-
methylglucamine, basic amino acids, such as arginine and lysine, and mixtures of these compounds.
The sulfonic amphiphilic polymers in accordance with the present invention generally have a number-average molecular weight ranging from 1000 to 20 000 000 g/mol, preferably ranging from 20 000 to 5 000 000 g/mol and more preferably still ranging from 100 000 to 1 500 000 g/mol.
The sulfonic amphiphilic polymers according to the invention may or may not be crosslinked. Crosslinked amphiphilic polymers are preferably chosen.
When they are crosslinked, the crosslinking agents can
be chosen from polyolefinically unsaturated compounds
commonly used for the crosslinking of polymers obtained by
radical polymerization. Mention may be made, for example, of
divinylbenzene, diallyl ether, dipropylene glycol diallyl ether,
polyglycol diallyl ethers, triethylene glycol divinyl ether,
hydroquinone diallyl ether, ethylene glycol di(meth)acrylate or
tetraethylene glycol di(meth)acrylate, trimethylolpropane
triacrylate, methylenebisacrylamide,
methylenebismethacrylamide, triallylamine, triallyl cyanurate, diallyl maleate, tetraallylethylenediamine, tetraallyloxyethane, trimethylolpropane diallyl ether, allyl (meth)acrylate, allyl ethers of alcohols of the sugar series, or other allyl or vinyl

ethers of polyfunctional alcohols, and also allyl esters of phosphoric and/or vinylphosphonic acid derivatives, or mixtures of these compounds.
Methylenebisacrylamide, allyl methacrylate or
trimethylolpropane triacrylate (TMPTA) will more particularly be used. The degree of crosslinking will generally vary from 0.01 mol% to 10 mol% and more particularly from 0.2 mol% to 2 mol%, with respect to the polymer.
The acrylic monomers having sulfonic group(s) are
chosen in particular from (meth)acrylamido(C1-
C22)alkylsulfonic acids and N-(C1-
C22)alkyl(meth)acrylamido(C1-C22)alkylsulfonic acids, such as undecylacrylamidomethanesulfonic acid, and also their partially or completely neutralized forms.
More preferably, use will be made of
(meth)acrylamido(C1-C22)alkylsulfonic acids, such as, for
example, acrylamidomethanesulfonic acid,
acrylamidoethanesulfonic acid, acrylamidopropanesulfonic acid,
2-acrylamido-2-methylpropanesulfonic acid, methacrylamido-2-
methylpropanesulfonic acid, 2-acrylamido-n-butanesulfonic
acid, 2-acrylamido-2,4,4-trimethylpentanesulfonic acid, 2-
methacrylamidododecylsulfonic acid or 2-acrylamido-2,6-
dimethyl-3-heptanesulfonic acid, and also their partially or
completely neutralized forms.
More particularly, use can be made of 2-acrylamido-2-methylpropanesulfonic acid (AMPS®), and also its partially or completely neutralized forms.
The amphiphilic polymers in accordance with the invention can in particular be chosen from random amphiphilic AMPS® polymers modified by reaction with an n-mono(C8-C22)alkylamine or a di[n-(C8-C22)alkyl]amine, such as those described in Patent Application WO 00/31154; the polymers described in this patent application form part of the content of the present description. These polymers can also comprise other ethylenically unsaturated hydrophilic monomers chosen, for

example, from (meth)acrylic acids, their β-substituted alkyl derivatives or their esters obtained with monoalcohols or mono-or polyalkylene glycols, (meth)acrylamides, vinylpyrrolidone, maleic anhydride, itaconic acid or maleic acid, or mixtures of these compounds.
The polymers of the invention can be chosen from amphiphilic copolymers of AMPS® and of at least one ethylenically unsaturated hydrophobic monomer comprising at least one hydrophobic portion having from 8 to 30 carbon atoms, more preferably from 8 to 22 carbon atoms, more preferably still from 8 to 18 carbon atoms and more particularly from 12 to 18 carbon atoms.
These same copolymers can additionally comprise one or more ethylenically unsaturated monomers not comprising a fatty chain, such as (meth)acrylic acids, their β-substituted alkyl derivatives or their esters obtained with monoalcohols or mono-or polyalkylene glycols, (meth)acrylamides, vinylpyrrolidone, maleic anhydride, itaconic acid or maleic acid, or mixtures of these compounds.
These copolymers are described in particular in Patent Application EP-A-750 899, in Patent US 5 089 578 and in the following Yotaro Morishima publications:
- "Self-assembling amphiphilic polyelectrolytes and their nanostructures", Chinese Journal of Polymer Science, Vol. 18, No. 40, (2000), 323-336;
- "Micelle formation of random copolymers of sodium 2-(acrylamido)-2-methylpropanesulfonate and a non-ionic surfactant macromonomer in water as studied by fluorescence and dynamic light scattering", Macromolecules, 2000, Vol. 33, No. 10, 3694-3704;
- "Solution properties of micelle networks formed by non-ionic moieties covalently bound to a polyelectrolyte: salt effects on rheological behavior", Langmuir, 2000, Vol. 16, No. 12, 5324-5332;

- "Stimuli responsive amphiphilic copolymers of sodium 2-
(acrylamido)-2-methylpropanesulfonate and associative
macromonomers", Polym. Preprint, Div. Polym. Chem., 1999,
40(2), 220-221.
The ethylenically unsaturated hydrophobic monomers of these specific copolymers are preferably chosen from the acrylates or acrylamides of following formula (VI):

in which, R8 and R10, which are identical or different, denote a hydrogen atom or a linear or branched C1-C6 alkyl radical (preferably methyl); Y denotes O or NH; R9 denotes a hydrophobic hydrocarbon radical comprising at least from 8 to 30 carbon atoms, more preferably from 8 to 22 carbon atoms, more preferably still from 8 to 18 carbon atoms and more particularly from 12 to 18 carbon atoms; and x denotes a number of moles of alkylene oxide and varies from 0 to 100.
The R9 radical is preferably chosen from linear C8-C18 (for example n-octyl, n-decyl, n-hexadecyl or n-dodecyl) alkyl radicals or branched or cyclic (for example cyclododecane (C 12) or adamantane (C10)) alkyl radicals; C8-C18 perfluoroalkyl radicals (for example the group of formula –(CH2)2-(CF2)9-CF3); the cholesteryl (C27) radical or a cholesterol ester residue, such as the cholesteryl oxyhexanoate group; or polycyclic aromatic groups, such as naphthalene or pyrene. Preference is more particularly given, among these radicals, to linear alkyl radicals and more particularly to the n-dodecyl radical.
According to a particularly preferred form of the invention, the monomer of formula (VI) comprises at least one

alkylene oxide unit (x ≥ 1) and preferably a polyoxyalkylene chain. The polyoxyalkylene chain preferably consists of ethylene oxide units and/or of propylene oxide units and more particularly still consists of ethylene oxide units. The number of oxyalkylene units generally varies from 3 to 100, more preferably from 3 to 50 and more preferably still from 7 to 25.
Mention may be made, among these polymers, of:
- copolymers which are or are not crosslinked and which are or
are not neutralized, comprising from 15% to 60% by weight of
AMPS® units and from 40% to 85% by weight of (C8-
C16)alkyl(meth)acrylamide units or of (C8-C16)alkyl
(meth)acrylate units, with respect to the polymer, such as those
described in Application EP-A-750 899; and
- terpolymers comprising from 10 mol% to 90 mol% of
acrylamide units, from 0.1 mol% to 10 mol% of AMPS® units
and from 5 mol% to 80 mol% of n-(C8-C18)alkylacrylamide units,
such as those described in Patent US-5 089 578.
Mention may also be made of copolymers of completely neutralized AMPS® and of dodecyl methacrylate, and also non-crosslinked and crosslinked copolymers of AMPS® and of n-dodecylmethacrylamide, such as those described in the abovementioned papers by Morishima.
Mention will more particularly be made of the
copolymers constituted of 2-acrylamido-2-
methylpropanesulfonic acid (AMPS®) units of following formula (VII):
(VII)

in which, X+ is a proton, an alkali metal cation, an alkaline earth
metal cation or the ammonium ion,
and of units of following formula (VIII):
(VIII),
in which, x denotes an integer varying from 3 to 100, preferably from 5 to 80 and more preferably from 7 to 25, R 11 has the same meaning as that indicated above for R8 in the formula (VI) and R12 denotes a linear or branched C 8-C22 and more preferably C10-C22 alkyl.
The polymers which are particularly preferred are those for which x = 25, R11 denotes methyl and R12 represents n-dodecyl; they are described in the abovementioned papers by Morishima.
The polymers for which X+ denotes sodium or ammonium are more particularly preferred.
(iii) The acrylic associative thickeners may preferably be chosen from cationic amphiphilic polymers comprising at least one hydrophilic unit and at least one unit having a fatty chain; the fatty chains having from 10 to 30 carbon atoms.
The cationic amphiphilic polymers which can be used in the composition according to the present invention are preferably chosen from polyacrylates having aminated side groups.
The polyacrylates having quaternized or non-quaternized aminated side groups possess, for example, hydrophobic groups of the steareth-20 (polyoxyethylenated (20) stearyl alcohol) or (C10-C30)alkyl PEG-20 itaconate type.

Mention may be made, as examples of polyacrylates having aminated side chains, of the polymers 8781-124B or 9492-103 or Structure Plus from National Starch.
(iv) The acrylic associative polymers may preferably be chosen from amphoteric amphiphilic polymers comprising at least one hydrophilic unit and at least one unit having a fatty chain; the fatty chains having from 10 to 30 carbon atoms.
Among these amphoteric amphiphilic polymers, mention may be made of methacrylamidopropyltrimethylammonium chloride/acrylic acid/C 10-C30 alkyl methacrylate copolymers, the alkyl radical preferably being a stearyl radical.
(b) The thickening polymers can preferably be chosen
from crosslinked acrylic acid homopolymers.
Among these crosslinked acrylic acid homopolymers,
mention may be made of those crosslinked by an allyl ether of
an alcohol of the sugar series, such as, for example, the products
sold under the names Carbopol, 910, 934, 940, 941, 934 P, 980,
981, 2984, 5984 and Carbopol Ultrez 10 Polymer by Lubrizol or
the products sold under the names Synthalen M and Synthalen K
by 3 VSA, Cosmedia SP® or crosslinked sodium polyacrylate
comprising 90% of dry matter and 10% of water, Cosmedia SPL®
or sodium polyacrylate as inverse emulsion comprising
approximately 60% of dry active matter, an oil (hydrogenated
polydecene) and a surfactant (PPG-5 Laureth-5), both sold by
Cognis, or partially neutralized crosslinked sodium
polyacrylates occurring in the form of an inverse emulsion comprising at least one polar oil, for example that sold under the name Luvigel® EM by BASF.
(c) The thickening polymers can preferably be chosen
from crosslinked copolymers of (meth)acrylic acid and of (C1-
C6)alkyl acrylate.
Among these crosslinked copolymers of (meth)acrylic acid and of (C1-C6)alkyl acrylate, mention may be made of the product sold under the name Viscoatex 538C by Coatex, which is a crosslinked copolymer of methacrylic acid and of ethyl

acrylate as an aqueous dispersion comprising 38% of active material, or the product sold under the name Aculyn 33 by Rohm & Haas, which is a crosslinked copolymer of acrylic acid and of ethyl acrylate as an aqueous dispersion comprising 28% of active material. Mention may more particularly be made of the crosslinked methacrylic acid/ethyl acrylate copolymer in the form of an aqueous 30% dispersion manufactured and sold under the name Carbopol Aqua SF-1 by Noveon.
(d) The thickening polymers can preferably be chosen
from non-ionic homopolymers and copolymers comprising
ethylenically unsaturated monomers of ester and/or amide type.
Among these non-ionic homopolymers or copolymers comprising ethylenically unsaturated monomers of ester and/or amide type, mention may be made of the products sold under the names of: Cyanamer P250 by Cytec (polyacrylamide); PMMA MBX-8C by US Cosmetics (methyl methacrylate/ethylene glycol dimethacrylate copolymer); Acryloid B66 by Rohm & Haas (butyl methacrylate/methyl methacrylate copolymer); or BPA 500 by Kobo (polymethyl methacrylate).
(e) The thickening polymers can preferably be chosen
from ammonium acrylate homopolymers or copolymers of
ammonium acrylate and of acrylamide.
Among ammonium acrylate homopolymers, mention may be made of the product sold under the name Microsap PAS 5193 by Hoechst.
Among copolymers of ammonium acrylate and of acrylamide, mention may be made of the product sold under the name Bozepol C Nouveau or the product PAS 5193 sold by Hoechst (they are described and prepared in the documents FR-2 416 723, US-2 798 053 and US-2 923 692).
(f) The thickening polymers can preferably be chosen
from (meth)acrylamido(C1-C4)alkylsulfonic acid homopolymers
and copolymers.
Preferably, the thickening polymers can preferably be
chosen from (meth)acrylamido(C1-C4)alkylsulfonic acid

homopolymers and copolymers are different from the polymers (b).
Among these (meth)acrylamido(C1-C4)alkylsulfonic acid homopolymers and copolymers, preference is preferably given to the use of crosslinked polymers.
More particularly still, they are partially or completely neutralized.
These are water-soluble or water-swellable polymers.
Mention may in particular be made, among these polymers, of:
- polyacrylamidomethanesulfonic acid,
- polyacrylamidoethanesulfonic acid,
- polyacrylamidopropanesulfonic acid,
- poly(2-acrylamido-2-methylpropanesulfonic acid),
- poly(2-methacrylamido-2-methylpropanesulfonic acid),
- poly(2-acrylamido-n-butanesulfonic acid).
Polymers of this type and in particular crosslinked and
partially or completely neutralized poly(2-acrylamido-2-
methylpropanesulfonic acids) are known, described and prepared in Patent Application DE-196 25 810.
They are generally characterized in that they comprise, randomly distributed:
- from 90% to 99.9% by weight of units of following formula
(IX):
(VII)
(IX)
in which, X+ denotes a cation or a mixture of cations, including H+, and

- from 0.01% to 10% by weight of at least one crosslinking
unit having at least two olefinic double bonds;
the proportions by weight being defined with respect to the total weight of the polymer.
X+ represents a cation or a mixture of cations chosen in particular from a proton, an alkali metal cation, a cation equivalent to that of an alkaline earth metal, or the ammonium ion.
Preferably, the crosslinked and neutralized poly(2-acrylamido-2-methylpropanesulfonic acid) comprises from 98% to 99.5% by weight of units of formula (IX) and from 0.5% to 2% by weight of crosslinking units.
The crosslinking units having at least two olefinic double bonds are chosen, for example, from dipropylene glycol diallyl ether, polyglycol diallyl ethers, triethylene glycol divinyl ether, hydroquinone diallyl ether, tetraallyloxyethane or other polyfunctional alcohol allyl or vinyl ethers, tetraethylene glycol diacrylate, triallylamine, trimethylolpropane diallyl ether, methylenebisacrylamide or divinylbenzene.
The crosslinking units having at least two olefinic double
bonds are more particularly still chosen from those
corresponding to the following general formula (X):

in which, R13 denotes a hydrogen atom or a C1-C4 alkyl and more particularly methyl (trimethylolpropane triacrylate).
The acrylamido-2-methylpropanesulfonic acid (AMPS®) polymers according to the present invention generally have a number-average molecular weight ranging from ranging from

50 000 to 10 000 000 g/mol, and preferably ranging from 80 000 to 8 000 000 g/mol.
Among these AMPS® polymers, mention may preferably be made of:
- crosslinked sodium acrylamido-2-methyl propane sulfonate polymers, such as for example the product sold under the name Simulgel 800 (CTFA name : Sodium Polyacryloyldimethyl Taurate), crosslinked ammonium acrylamido-2-methyl propane sulfonate polymers, such as for example the polymers described in the patent EP 0 815 928 B1, or the product sold under the trade name Hostacerin AMPS® by Clariant (INCI name : Ammonium Polydiméthyltauramide);
- AMPS/acrylamide copolymers, in particular crosslinked acrylamide/ sodium acrylamido-2-methyl propane sulfonate copolymers such as for example the product sold under the name SEPIGEL 305 (INCI name : Polyacrylamide/C13-C14 Isoparaffin/ Laureth-7) or the product sold under the name Simulgel 600 by Seppic (INCI name : Acrylamide/Sodium acryloyldimethyltaurate/ Isohexadecane/ Polysorbate-80);
AMPS®/vinylpyrrolidone copolymers or
AMPS®/vinylformamide copolymers, such as for example the
copolymer used in the product sold under the name Aristoflex
AVC® by Clariant (CTFA name : Ammonium
Acryloyldiméthyltaurate/ VP Copolymer) neutralized by sodium carbonate or potassium carbonate;
- AMPS®/sodium acrylate copolymers, such as for example the AMPS/sodium acrylate copolymer used in the product sold under the name Simulgel EG® by Seppic or under the name Sepinov EM (CTFA name: Hydroxyethyl Acrylate/Sodium Acryloyldimethyl taurate copolymer);
- AMPS®/hydroxyethyl acrylate copolymers, such as for example the AMPS®/hydroxyéthyl acrylate copolymère used in the product sold under the name Simulgel NS® by Seppic (CTFA name: Hydroxyethyl Acrylate/Sodium Acryloyldimethyltaurate copolymer (And) Squalane (And)

Polysorbate 60) or the sodium acrylamido-2-methyl propane sulfonate /Hydroxyethylacrylate copolymer sold under the name Sepinov EMT 10 (INCI name: Hydroxyethyl Acrylate/Sodium Acryloyldimethyl taurate copolymer).
(g) The thickening polymers can preferably be chosen
from crosslinked methacryloyloxy(C1-C4)alkyltri(C1-
C4)alkylammonium homopolymers and copolymers.
Among these crosslinked methacryloyloxy(C1-
C4)alkyltri(C1-C4)alkylammonium homopolymers and
copolymers, mention may be made of crosslinked polymers of
methacryloyloxy(C1-C4)alkyltri(C1-C4)alkylammonium salts,
such as the polymers obtained by homopolymerization of
dimethylaminoethyl methacrylate quaternized by methyl
chloride or by copolymerization of acrylamide with
dimethylaminoethyl methacrylate quaternized by methyl
chloride, the homo- or copolymerization being followed by crosslinking by an olefinically unsaturated compound, in particular methylenebisacrylamide.
Use may more particularly be made of a crosslinked acrylamide/methacryloyloxyethyltrimethylammonium chloride (20/80 by weight) copolymer in the form of a dispersion comprising 50% by weight of the said copolymer in mineral oil. This dispersion is sold under the name of Salcare® SC 92 by Ciba. Use may also be made of a crosslinked homopolymer of methacryloyloxyethyltrimethylammonium chloride comprising approximately 50% by weight of the homopolymer in mineral oil or in a liquid ester. These dispersions are sold under the names of Salcare® SC 95 and Salcare® SC 96 by Ciba.
Preferably, the thickening polymer(s) is (are) chosen from crosslinked acrylic acid homopolymers and copolymers.
In a preferred embodiment of the invention, thickening polymer(s) is(are) chosen from acrylic associative polymers, more preferably chosen from anionic amphiphilic polymers comprising at least one hydrophilic unit and at least one unit

having a fatty chain; the fatty chains having from 8 to 30 carbon atoms.
In another preferred embodiment of the invention, thickening polymer(s) is(are) chosen from (meth)acrylamido(C1-C4)alkylsulfonic acid homopolymers and copolymers.
In a preferred embodiment of the invention, the composition comprises one or more thickening polymer(s) chosen from acrylic associative polymers, more preferably chosen from anionic amphiphilic polymers comprising at least one hydrophilic unit and at least one unit having a fatty chain, said fatty chains having from 8 to 30 carbon atoms, (meth)acrylamido(C1-C4)alkylsulfonic acid homopolymers and copolymers, and their mixtures.
In a particularly preferred embodiment of the invention, the composition comprises at least one thickening polymer chosen from acrylic associative polymers, more preferably chosen from anionic amphiphilic polymers comprising at least one hydrophilic unit and at least one unit having a fatty chain; the fatty chains having from 8 to 30 carbon atoms, and at least one thickening polymer chosen from from (meth)acrylamido(C1-C4)alkylsulfonic acid homopolymers and copolymers.
The total amount of thickening polymer(s), when present in the composition according to the present invention, preferably ranges from 0.01 to 5% by weight, more preferably from 0.02 to 1% by weight, and better still from 0.05 to 0.5% by weight, relative to the total weight of the aqueous composition.
Preferably, the relative weight of the aqueous
composition impregnated on the substrate is from 100 to 1000%, more preferably from 250 to 800% by weight relative to the weight of the substrate.
These ranges are given with respect to the substrate which is in a dry state.
By "substrate in a dry state", it is meant, in the sense of this invention, a substrate without any impregnated composition.

The different techniques for impregnating the substrate with compositions are well known by one of ordinary skill in the art and can all be applied in the present invention.
Generally, the composition is added to the substrate by one or more techniques comprising immersion, coating, vaporization, quenching, spraying, pouring, and the like. In some cases, the composition can be heated prior to be added to the substrate.
Additives
The composition may further comprise one or more additive(s).
As additives that may be used in accordance with the
invention, mention may be made of non-silicone fatty
substances, silicones, cationic, amphoteric, anionic, or non-ionic
polymers different from thickening polymers, antidandruff
agents, anti-seborrhoea agents different from talc and perlite,
agents for preventing hair loss and/or for promoting hair
regrowth, vitamins and provitamins including panthenol,
sunscreens, organic pigments, sequestrants, plasticizers,
solubilizers, acidifying agents, antioxidants, hydroxy acids, fragrances and preserving agents.
The above additives may generally be present in an amount, for each of them, of between 0.001% and 20% by weight, relative to the total weight of the composition.
According to one embodiment, the process according to the invention further comprises a step of passing the substrate through keratin fibres, preferably human keratin fibres, more preferably hair.
Preferably, the step of passing the substrate through keratin fibres is repeated at least once, more preferably said step is realized at least ten times, even more preferably at least thirty times, better still at least fifty times.
In a particular embodiment, keratin fibres, preferably hair, can be left in the open hair for at least 1 minute, preferably

at least 10 minutes, more preferably at least 30 minutes, better still at least one hour, between each step of passing the substrate through keratin fibres, preferably every 10 steps.
According to one particular embodiment, the process according to the invention is for cleansing keratin fibres.
According to another particular embodiment, the process according to the invention is for anti-color fading keratin fibres, i.e for decreasing the color fading on keratin fibres.
The invention also relates to a cosmetic product comprising a substrate impregnated with an aqueous composition comprising:
- from 0.05 to 10% by weight of talc; and
- from 0.05 to 5% by weight of perlite.
Preferably, the aqueous composition comprises talc in a content ranging from 0.1 to 5% by weight, more preferably from 0.5 to 2% by weight relative to the total weight of the aqueous composition.
Preferably, the aqueous composition comprises perlite in a content ranging from 0,1 to 3% by weight, more preferably from 0.2 to 1,5% by weight relative to the total weight of the aqueous composition.
The examples that follow serve to illustrate the invention without, however, being limiting in nature.
EXAMPLES
In the examples that follow and unless otherwise indicated, the amounts are given as weight percentages of active material (AM) relative to the total weight of the composition.
a. Compositions
The following compositions 1, 2 and 3 according to the present invention were prepared from the ingredients indicated, in percentage by active matter (AM), in the table 1 below.

Table 1

Composition 1 (Invention) 2 (Invention) 3 (Invention)
Ammonium polyacryloyldimethyl taurate 0.15 0.15 0.15
Menthol 0.1 0.125 0.1
Acrylates/C10-C30 alkyl
acrylate crosspolymer 0.09 0.09 0.09
Preservatives qs qs qs
Glyceryl stearate (and) PEG-100 stearate (50/50) 0.2 (0.1 + 0.1) 0.2 (0.1 + 0.1) 0.2 (0.1 + 0.1)
Perlite 0.75 0.75 0.35
Talc 1.25 1.25 1.25
Potassium cetyl phosphate 0.074 0.074 0.074
Water qsp 100 100 100
b. Substrate
The substrate used herein is a non-woven 100% viscose tissue (from Ginni Filaments) having a density of 100 g/m2 and an embossed structure.
The substrate has for dimensions 22 cm X 17.5 cm (385 cm2) and its weight is of 3.85 g (for low loading).
When higher quantities of composition are loaded, the dimensions of the substrate are 22 cm x 35 cm (= 770 cm2), and its weight is of 7.70 g.
Since the substrate is not impregnated with any compositions, the substrate is in a dry state.
c. Impregnation of the compositions
Said substrate is impregnated with compositions 1, 2 and 3, respectively, by immersion technique.
The degree of the compositions impregnated to the substrate is indicated in the table 2 below.

Table 2

Compositions 1 2 2 3
(Invention) (Invention) (Invention) (Invention)
Degree of 300% 550% 720% 300%
impregnation
Weight of the 3.85 7.70 7,70 3,85
substrate (g)
Weight of 11.55 42.35 55.44 11.55
composition
(g)
Substrate 1 Substrate 2A Substrate 2B Substrate 3
4 substrates impregnated with compositions were thus prepared.
The substrate impregnated with 300% by weight of composition 1, is called substrate 1. More specifically, the substrate 1 is impregnated with 11.55 g of composition 1. The substrate weighs 3.85 g in a dry state.
The substrate impregnated with 550% by weight of composition 2, is called substrate 2A. More specifically, the substrate 2A is impregnated with 42.35 g of composition 2. The substrate weighs 7.7 g in a dry state.
The substrate impregnated with 720% by weight of composition 2, is called substrate 2B. More specifically, the substrate 2B is impregnated with 55.44 g of composition 2. The substrate weighs 7.7 g in a dry state.
The substrate impregnated with 300% by weight of composition 3, is called substrate 3. More specifically, the substrate 3 is impregnated with 11.55 g of composition 3. The substrate weighs 3.85 g in a dry state.
d. Evaluation of the efficiency of sebum removal

An artificial sebum was prepared with the following ingredients, dissolved in 50 mL of heptane:
Squalene: 480 mg;
Trioleine: 1140 mg;
Oleic acid: 660 mg;
Oleyl oleate: 600 mg;
Cholesteryl oleate: 30 mg;
Cholesterol: 90 mg.
Then, hair locks (5) were left to soak in the artificial sebum overnight. Said hair locks were then dried at room temperature. Then, the substrate 1 was passed over said hair locks to clean them. The substrate is used five times on front side and five times on back side of the entire length of hair locks.
For the control, no substrate was passed over hair locks.
Hair locks were then cut so that about 100 mg of hair locks, with a length of 0.5 cm, were obtained. 1 mL of heptane was then poured on said hair locks. The obtained mixture was then mixed at 1500 rpm in a thermomixer for three hours at room temperature. The mixture was then centrifuged and analysed (GC-FID: Agilent GC with FID detector).
It is clearly observed that hair locks treated with the substrate 1 according to the present invention makes it possible to remove 70% of hair sebum (vs untreated hair).
The substrate according to the invention is therefore significantly efficient for cleansing hair.
e. Scalp oil removal
Sixteen volunteers were recruited (oily skin type, last hair wash 2 days before, 18-30 years old, hair length: mid-short).
1cm2 area was shaved off on both sides back of head.
Baseline sebumeter reading was taken on one untreated side.
2 cm2 of substrate 1 was cut and rubbed on the test site (right) for 60 seconds, removed and rubbed again (15 times).

After the 15 times, and after 10 minutes, sebumeter reading was taken again.
The quantity of sebum is evaluated by measuring the variation in the transparency of a film, which becomes increasingly translucent in the presence of a cutaneous lipid film.
In order to determine sebum content, a cassette containing the film is inserted into the opening of the device in which a photoelectric cell measures light transmission. This shows the quantity of sebum on the surface studied, a quantity that is expressed in ng/cm2.
The results appear in table below:

Scalp sebum levels Baseline T10
Average 36.50 2.71
Below, is the average value of scalp cleansability 10 minutes post product application.

% scalp cleansability wrt Baseline 94.06%
It is clearly observed that hair locks treated with the substrate 1 according to the present invention makes it possible to reduce the scalp sebum level by 94% (vs untreated hair).
f. Evaluation of the combing force
Hair locks (3g, 20 cm) were treated with a shampoo (DOP shampoo – DOP camomille) on one hand. On the other hand, same set of hair locks were treated with the substrate 1.
The combing force was then evaluated (in vitro test using Diastron’s combing instrument).
Hair locks were suspended from a force-measuring device, by inserting a comb closet to the root end of the lock, by

setting the comb in a straight combing motion through the lock at a constant speed and by continuously recording the forces that resists its motion during this transit from the point of insertion until it clears the tip end of the lock.
The data resulting from this operation consist of a graph showing the load (in grams) opposing combing as a function of the position of the comb along the length of the lock.
The results are indicated in the table below. The combing force (or peak load) is expressed in gmf.

Substrate 1 (Invention) DOP shampoo (Comparative)
Combing force (gmf) 33.94 ± 9.82 68.55 ± 13.80
It is clearly observed that hair treated with substrate 1 according to the invention are significantly smoother (about 2 times) than hair treated with a shampoo.
g. Evaluation of the frizziness
12 locks (1g, 27 cm length for each lock, round natural Indian hair) were employed.
6 locks were treated with a shampoo (DOP shampoo – DOP camomille) on one hand. On the other hand, 6 hair locks were treated with the substrate 1.
In this example, the surfaces occupied by hair locks (hair tresses) are evaluated.
T0 measurements were done. Hair locks were then left at 25°C and 80% RH (Relative Humidity), in a glove box AI2D.
Measurements after 6 hours (T6) and after 24 hours (T24) were done.
The frizziness was evaluated at T6 and at T24.
An image analysis software for 2D volume measurement on hair locks was used for frizz calculation. An automated image analysis which allows measurements of kinetics of catch/loss of volume was used.

The results are indicated in the table below. The frizziness is expressed in mm2.
6 hours after treatment, the results in terms of frizz control are almost identical for hair treated with substrate 1 according to the invention and for hair treated with a shampoo.
However, 24 hours after treatment, the results in terms of frizz control is significantly better for hair treated with substrate 1 according to the invention than for hair treated with a shampoo.
h. Evaluation of the coloration
The evaluation of the coloration has been read on a spectrocolorimeter (Minolta CM2600d, illuminant D65, angle 10°, SCI values) for the L*, a*, b* colorimetric measurements. In this L*, a*, b* system, L* represents the intensity of the color, a* indicates the green/red color axis and b* indicates the blue/yellow color axis. The lower the value of L, the darker or more intense the color. The higher the value of a*, the redder the shade; the higher the value of b*, the yellower the shade. In the example below, the variation in coloring between the locks that have just been colored and after treatment, namely after a certain number of rubbing (or passages) of a substrate on hair locks, are defined by AE*, corresponding to the colour uptake on keratin fibers, according to the following equation:

In this equation, L*, a* and b* represent the values measured after dyeing hairs locks, after a certain number of rubbing (or passages) of a substrate, and L0*, a0* and b0*

represent the values measured just after hairs locks have been colored.
The greater the value of AE*, the greater the difference in color between the locks that have just been colored and the locks after treatment.
18 locks (3g, 27 cm length for each lock, flat 90% grey Indian hair) were employed, colored with Garnier Color Natural shade 6.60. The 18 locks were divided into 6 groups of 3 locks.
Baseline spectrocolorimeter readings were taken on all locks and all locks were then treated as below:
- Group 1: 5x5 cm2 piece of control substrate, i.e a
substrate which is not impregnated with any composition, rubbed
against colored locks (10 times in 60 sec);
- Group 2: 5x5 cm2 piece of a substrate, impregnated with 720% by weight of water, rubbed against colored locks (10 times in 60 sec); This substrate is called placebo.
- Group 3: 5x5 cm2 piece of substrate 1, as defined in table 2 above, rubbed against colored locks (10 times in 60 sec);
- Group 4: 5x5 cm2 piece of substrate 2A, as defined in table 2 above, rubbed against colored locks (10 times in 60 sec);
- Group 5: 5x5 cm2 piece of substrate 2B, as defined in table 2 above, rubbed against colored locks (10 times in 60 sec);
- Group 6: 5x5 cm2 piece of substrate 3, as defined in table 2 above, rubbed against colored locks (10 times in 60 sec).
The rubbing against colored locks 10 times in 60 seconds represents 1 sequence.
5 sequences were done for each group of locks.
Between 2 sequences, colored hair locks were left in the open hair for one hour.
Color measurements were done after 1, 3 and 5 sequences/substrate, respectively.
The performance of the product tested is reached by overall difference (AE*) between the color of the fiber prior to treatment and its color after treatment.

The results are indicated in the table below.

number of sequence(s) ΔE*
Control substrate 1 0.63
3 0.79
5 0.98
Placebo 1 0.61
3 1.10
5 1.73
Substrate 1 1 0.88
3 1.29
5 1.32
Substrate 2A 1 0.93
3 1.65
5 2.15
Substrate 2B 1 1.23
3 2.08
5 3.30
Substrate 3 1 0.86
3 1.65
5 1.60
It is clearly observed that the values of ΔE* contained in the table above are low. Therefore, the results show that the use of the substrates according to the invention makes it possible to prevent color fading. The results are particularly good for substrates 1 and 3.

I/We Claim:
1. Process for treating keratin fibres, preferably human keratin fibres, such as hair, comprising applying to said keratin fibres a substrate impregnated with an aqueous composition comprising at least talc and/or perlite.
2. Process according to claim 1, wherein said substrate is a fibrous substrate, preferably a fibrous layer, more preferably a nonwoven fibres substrate, even more preferably a wipe.
3. Process according to claim 1 or 2, wherein the aqueous composition comprises at least water, the content of water being more than or equal to 70% by weight, preferably more than or equal to 80% by weight, more preferably more than or equal to 90% by weight relative to the total weight of the aqueous composition.
4. Process according to any one of the preceding claims, wherein the content of talc, when it is present, ranges from 0.05 to 10% by weight, preferably from 0.1 to 5% by weight, more preferably from 0.5 to 2% by weight relative to the total weight of the aqueous composition.
5. Process according to any one of the preceding claims, wherein the content of perlite, when it is present, ranges from 0.05 to 5% by weight, preferably from 0.1 to 3% by weight, more preferably from 0.2 to 1.5% by weight relative to the total weight of the aqueous composition.
6. Process according to any one of the preceding claims, wherein the aqueous composition comprises talc and perlite.
7. Process according to any one of the preceding claims, wherein the aqueous composition further comprises menthol.
8. Process according to any one of the preceding claims, wherein the aqueous composition further comprises one or more thickening agents, preferably one or more thickening polymers.
9. Process according to the preceding claim, wherein the thickening polymers are chosen from anionic amphiphilic polymers comprising at least one hydrophilic unit and at least

one unit having a fatty chain, said fatty chains having from 8 to 30 carbon atoms, (meth)acrylamido(C1-C4)alkylsulfonic acid homopolymers and copolymers, and their mixtures.
10. Process according to claim 8 or 9, wherein the total amount of thickening polymer(s) ranges from 0.01 to 5% by weight, more preferably from 0.02 to 1% by weight, and better still from 0.05 to 0.5% by weight, relative to the total weight of the aqueous composition.
11. Process according to any one of the preceding claims, wherein the relative weight of the aqueous composition impregnated on the substrate is from 100 to 1000%, more preferably from 250 to 800% by weight relative to the weight of the substrate.
12. Cosmetic product comprising a substrate impregnated with an aqueous composition comprising:

- from 0.05 to 10% by weight of talc; and
- from 0.05 to 5% by weight of perlite.