Hair coloring process comprising at least the application of a composition comprising a (poly)carbodiimide compound, a silicone acrylic copolymer and at least one coloring agent

Abstract

The present invention relates to a hair coloring process comprising the following steps: a) applying to the hair at least one composition C comprising: - one or more (poly)carbodiimide compounds; - one or more silicone acrylic copolymer(s); and - one or more coloring agent(s) chosen from pigments, direct dyes, and mixtures thereof; and b) applying to the hair at least one composition D comprising at least one silicone compound comprising at least one carboxylic group.

Description

Title of the invention: Process for coloring hair comprising at least the application of a composition comprising a (poly)carbodiimide compound, a silicone acrylic copolymer and at least one coloring agent

[0001] The present invention relates to a method for coloring hair comprising the application to the hair of a composition C comprising a (poly)carbodiimide compound, a silicone acrylic copolymer and a coloring agent, and the application to the hair of a composition D comprising a silicone compound comprising at least one carboxylic group. Technical field

[0002] In the field of coloring hair keratin fibers, in particular human hair, it is already known to color hair keratin fibers by different techniques using direct dyes or pigments for non-permanent colorings or dye precursors for permanent colorings.

[0003] There are basically three types of hair coloring process:

[0004] a) so-called permanent coloring which has the function of bringing about a significant modification of the natural color and which uses oxidation dyes which penetrate into the hair fiber and form the dye by a process of oxidative condensation;

[0005] b) non-permanent, semi-permanent or direct coloring, which does not involve the oxidative condensation process and is resistant to 4 or 5 shampoos; consists of dyeing keratin fibers with dyeing compositions containing direct dyes;

[0006] c) temporary coloring which results in a change in the natural color of the hair which lasts from one shampoo to the next and which serves to enhance or correct a shade already obtained. It can also be likened to a “make-up” process.

[0007] For this latter type of coloring, it is known to use colored polymers formed by grafting one or more dyes of azoic, triphenyl-methane, azine, indoamine or anthraquinone nature onto a polymer chain. These colored polymers are not entirely satisfactory, particularly in terms of the homogeneity of the coloring obtained, its resistance, not to mention the problems linked to their manufacture and particularly to their reproducibility.

[0008] Another coloring method consists of using pigments. Indeed, the use of pigment on the surface of keratin fibers generally allows visible coloring to be obtained on dark hair since the pigment on the surface masks the natural color of the fiber. However, the colors obtained by this coloring method have the disadvantage of having low resistance to shampoos as well as external agents such as sebum, perspiration, brushing and / or friction.

[0009] Furthermore, temporary hair coloring compositions can also lead to cosmetic properties which are not entirely satisfactory, more particularly hair conditioning properties, in particular in terms of detangling or smooth feel of the hair.

[0010] There therefore remains a need to have a hair coloring process, which has the advantage of obtaining a homogeneous colored coating on the hair, while forming a coating that is resistant to shampoos and various attacks that the hair may be subjected to such as brushing and / or rubbing without degrading the cosmetic properties of the hair.

[0011] Thus, the aim of the present invention is to develop a hair coloring process which has the advantage of obtaining a homogeneous and smooth colored coating on the hair, while forming a coating which is resistant to shampoos and various attacks which the hair may be subjected to such as brushing and / or rubbing without degrading the cosmetic properties of the hair. Statement of the invention

[0012] The present invention therefore relates to a method for coloring hair comprising the following steps:

[0013] a) the application to the hair of at least one composition C comprising:

[0014] - one or more (poly)carbodiimide compounds;

[0015] - one or more silicone acrylic copolymer(s); and

[0016] - one or more coloring agent(s) chosen from pigments, dyes direct, and their mixtures; and

[0017] b) the application to the hair of at least one composition D comprising at least one silicone compound comprising at least one carboxylic group.

[0018] Thanks to the hair coloring process according to the invention, colored coatings are obtained on the hair making it possible to obtain a visible coloring on all types of hair in a way that remains after shampooing while preserving the physical qualities of the hair. Such a coating can be resistant to external aggressions that the hair may be subjected to, such as brushing and perspiration. In particular, it makes it possible to obtain a homogeneous deposit. The hair coloring process according to the invention also makes it possible to obtain good cosmetic properties, in particular good conditioning properties, in particular in terms of detangling or smooth feel.

[0019] By "remanent coloration after shampooing" is meant, within the meaning of the present invention, that the coloration obtained persists after shampooing, preferably after 3 shampoos, more preferably after 5 shampoos.

[0020] The expression “at least one” means one or more.

[0021] Unless otherwise indicated, the limits of a domain of values ​​are included in this domain, in particular in the expressions “between” and “ranging from ... to ...”.

[0022] The invention is not limited to the illustrated examples. The characteristics of the different examples may in particular be combined within variants not illustrated.

[0023] For the purposes of the present invention and, unless otherwise indicated,

[0024] - an “alkyl” radical denotes a saturated linear or branched radical containing by example of 1 to 20 carbon atoms;

[0025] - an “aminoalkyl” radical denotes an alkyl radical as defined previously, said alkyl radical comprising an NH2 group;

[0026] - a “hydroxyalkyl” radical denotes an alkyl radical as defined previously, said alkyl radical comprising an OH group;

[0027] - an “alkylene” radical denotes a divalent saturated C2-C4 hydrocarbon group, linear or branched, such as methylene, ethylene, or propylene;

[0028] - a “cycloalkyl” or “alicycloalkyl” radical denotes a hydrocarbon group mono- or bicyclic saturated cyclic, preferably monocyclic, comprising from 1 to 3 rings, preferably 2 rings, and comprising from 3 to 24 carbon atoms, in particular comprising from 3 to 20 carbon atoms, more particularly from 3 to 13 carbon atoms, even more particularly from 3 to 12 carbon atoms, preferably between 5 and 10 carbon atoms, such as cyclopropyl, cyclopentyl, cyclohexyl, cycloheptyl, or norbomyl, in particular cyclopropyl, cyclopentyl or cyclohexyl. it being understood that the cycloalkyl radical may be substituted by one or more (Ci-C4)alkyl groups such as methyl, preferably the cycloalkyl radical is then an isobomyl group,

[0029] - a “cycloalkylene” radical denotes a divalent cycloalkyl group with “cy “cloalkyl” as defined above, preferably C3-C12;

[0030] - an “aryl” radical is an unsaturated and aromatic cyclic hydrocarbon radical, comprising from 6 to 14 carbon atoms, preferably between 6 and 12 carbon atoms, mono / bi / or tri / cyclic, fused or not, preferably the aryl group comprises 1 cycle with 6 carbon atoms such as phenyl, naphthlyl, anthryl, phenanthryl and biphenyl, it being understood that the aryl radical may be substituted by one or more (Ci-C4)alkyl groups such as methyl, preferably tolyl, xylyl, or methylnaphthyl, preferably the aryl group represents phenyl;

[0031] - an “arylene” radical is a divalent aryl radical with “aryl” as defined above preferably arylene represents phenylene;

[0032] - a “heterocyclic” radical denotes a mono or poly hydrocarbon radical cyclic, saturated or unsaturated, non-aromatic or aromatic, comprising one or more heteroatoms, preferably from 1 to 5 atoms chosen from O, S or N, comprising from 3 to 20 links, preferably between 5 and 10 links such as imidazolyl, pyrrolyl and furanyl;

[0033] - a “heterocycloalkylene” radical is a divalent heterocyclic group with “heterocyclic” as defined above;

[0034] - an “aryloxy” radical denotes an aryl-oxy radical with “aryl” as defined above cededly;

[0035] - an “alkoxy” radical denotes an alkyl-oxy radical with “alkyl” as defined previously;

[0036] - an “acyloxy” radical denotes an ester radical RC(O)-O- with R an alkyl group as previously defined;

[0037] - a “reactive” group is a group capable of forming a bond covalent with another group, identical or different, by chemical reaction.

[0038] Unless otherwise indicated, when compounds are mentioned in the present application, their optical isomers, their geometric isomers, their tautomers, their salts, alone or in mixture, are also meant.

[0039] By "hair keratin fibers" is meant hair. In other words, the expressions "hair keratin fibers" and "hair" are equivalent in the remainder of the description.

[0040] For the purposes of the present invention, the term "hair" means the hair of the head. This term does not correspond to body hair, eyebrows, or eyelashes. Polycarbodiimide compound

[0041] Composition C used in the context of the process according to the invention comprises at least one (poly)carbodiimide compound.

[0042] The composition may comprise at least two distinct (poly)carbodiimide compounds, present as a mixture in the composition.

[0043] The term “(poly)carbodiimide compound” means a compound comprising one or more carbodiimide group(s), preferably at least two carbodiimide groups, more preferably at least three carbodiimide groups, in particular the number of carbodiimide groups does not exceed 200, preferably 150, more preferably 100.

[0044] The term “carbodiimide group” means a divalent linear triatomic moiety of general formula - (N=C=N) -.

[0045] The (poly)carbodiimide compound(s) according to the invention may optionally include in their structure one or more reactive groups different from the carbodiimide groups, chosen from the alkoxysilyl, hydroxysilyl, acetoxysilyl, vinylsilyl, acrylalkylsilyl, methacrylalkylsilyl, crotonylalkylsilyl, carboxyanhydridoalkylsilyl, carboxyalkylsilyl, hydroxyalkylsilyl, aldehydoalkylsilyl, mercaptoalkylsilyl, norbornenylsilyl, acylpentadienylalkylsilyl, maleimidoalkylsilyl, sulphonylalkylsilyl, (meth)acrylalkyl, crotonylalkyl, alkylepoxide groups such as propylepoxide or butylepoxide and azacyclopropane.

[0046] The reactive group(s) other than the carbodiimide groups may be pendant or terminal. Preferably, the (poly)carbodiimide compound(s) comprise one or more terminal groups other than the carbodiimide groups, preferably one or more terminal groups chosen from alkoxysilyl, hydroxysilyl, acetoxysilyl, vinylsilyl, acrylalkylsilyl, methacrylalkylsilyl, crotonylalkylsilyl, carboxyanhydridoalkylsilyl, carboxyalkylsilyl, hydroxyalkylsilyl, aldehydoalkylsilyl, mercaptoalkylsilyl, norbornenylsilyl, acylpentadienylalkylsilyl, maleimidoalkylsilyl, sulphonylalkylsilyl, (meth)acrylalkyl, crotonylalkyl, alkylepoxide groups such as propylepoxide or butylepoxide and azacyclopropane.

[0047] According to a particular embodiment, the (poly)carbodiimide compound is chosen from the compounds of the following formula (I):

[0048] . (I),

[0049] in which:

[0050] - Xi and X2 represent, independently, an oxygen atom O, a sulfur atom S or an NH group;

[0051] - Ri and R2 independently represent a group chosen from a radical hy carbon radical, preferably alkyl, optionally interrupted by one or more heteroatom(s), a group chosen from alkoxysilyl, hydroxysilyl, acetoxysilyl, vinylsilyl, acrylalkylsilyl, methacrylalkylsilyl, crotonylalkylsilyl, carboxyanhydridoalkylsilyl, carboxyalkylsilyl, hydroxyalkylsilyl, aldehydoalkylsilyl, mercaptoalkylsilyl, norbornenylsilyl, acylpentadienylalkylsilyl, maleimidoalkylsilyl, sulphonylalkylsilyl, (meth)acrylalkyl, crotonylalkyl, alkylepoxide such as propylepoxide or butylepoxide, and azacyclopropane, and a hydrocarbon radical, preferably alkyl, optionally interrupted by one or more heteroatom(s) and by one or more groups chosen from the groups alkoxysilyl, hydroxysilyl, acetoxysilyl, vinylsilyl, acrylalkylsilyl, methacrylalkylsilyl, crotonylalkylsilyl, carboxyanhydridoalkylsilyl, carboxyalkylsilyl, hyd

[0052]

[0053]

[0054] roxyalkylsilyl, aldehydoalkylsilyl, mercaptoalkylsilyl, norbornenylsilyl, acylpenta-dienylalkylsilyl, maleimidoalkylsilyl, sulphonylalkylsilyl, (meth)acrylalkyl, croto-nylalkyl, alkylepoxide such as propylepoxide or butylepoxide, and azacyclopropane; - n denotes an integer ranging from 1 to 1000; and - A is a monomer chosen from the compounds below:

[0055] According to another embodiment, the (poly)carbodiimide compound is chosen from the compounds of the following formula (!):

[0056] (D

[0057] in which:

[0058] - Xi and X2 represent, independently, an oxygen atom O, a sulfur atom S or an NH group;

[0059] - Yi and Y2 represent, independently, a divalent organic radical chosen from a saturated C1-C36 aliphatic group or a C6-C24 aromatic or alkylaromatic group, the aliphatic or aromatic group optionally comprising one or more non-pendant heteroatoms, such as nitrogen, oxygen, the sulfur atom, or combinations thereof;

[0060] - Zi and Z2 represent, independently, a reactive terminal group or a group inert terminal;

[0061] - as an inert terminal group, Zi and Z2 can represent, independently, a saturated, linear or branched or cyclic aliphatic group, C1 to C50, or an aromatic group C6 to C[8, said aliphatic and aromatic groups optionally comprising from 1 to 10 heteroatoms chosen from nitrogen, oxygen, sulfur and combinations thereof, and the aliphatic or aromatic group may be partially or fully fluorinated; in this variant, Zi and Z2 comprise a CG linking group linking Zi to Yi and Z2 to Y2, the CG group being able to be a single covalent bond, a saturated CC bond, an unsaturated covalent CC bond, an amide group, an ester group, a carbonate group, a thioester group, an ether group, a urethane group, a thiourethane group or a urea group;

[0062] - as a reactive terminal group, Zi and Z2 may be chosen from alkoxysilyl, hydroxysilyl, acetoxysilyl, vinylsilyl, acrylalkylsilyl, methacrylalkylsilyl, crotonylalkylsilyl, carboxyanhydridoalkylsilyl, carboxyal-kylsilyl, hydroxyalkylsilyl, aldehydoalkylsilyl, mercaptoalkylsilyl, norbomenylsilyl, acylpentadienylalkylsilyl, maleimidoalkylsilyl, sulfonylalkylsilyl, (meth)acrylalkyl, crotonylalkyl, alkylepoxide groups such as propylepoxide or butylepoxide and azacyclopropane;

[0063] - Q represents an organopolymer or an organo-oligomer comprising units re repeating saturated aliphatic groups, linear or branched or cyclic, or aromatic groups or alkylaromatic groups, coupled by repeating carbonate, ester, ether, amide, urethane or urea bonds or combinations thereof;

[0064] - A represents a divalent aliphatic, aromatic, alkylaromatic or radical linear, saturated, branched or cyclic having from 2 to 30 carbon atoms, which may optionally include one or more non-pendant heteroatoms, such as the nitrogen atom, the oxygen atom, the sulfur atom, or combinations thereof, in the aliphatic chain or the aromatic chain;

[0065] - r denotes an integer equal to 0 or 1;

[0066] - m denotes an integer ranging from 0 to 1000, preferably equal to 0 or 1;

[0067] - m' denotes an integer ranging from 0 to 1000, preferably equal to 0 or 1;

[0068] - n denotes an integer ranging from 0 to 1000, preferably equal to 0 or 1, with m+ (m'*n ) > 2.

[0069] Preferably, Zi and Z2 represent, independently, a reactive terminal group, more preferably, Zi and Z2 represent, independently, a group chosen from alkoxysilyl, hydroxysilyl, acetoxysilyl, vinylsilyl, acrylalkylsilyl, methacrylalkylsilyl, crotonylalkylsilyl, carboxyanhydridoalkylsilyl, car- boxyalkylsilyl, hydroxyalkylsilyl, aldehydoalkylsilyl, mercaptoalkylsilyl, norborenylsilyl, acylpentadienylalkylsilyl, maleimidoalkylsilyl, sulfonylalkylsilyl, (meth)acrylalkyl, crotonylalkyl, alkylepoxide such as propylepoxide or butylepoxide, and azacyclopropane.

[0070] Such (poly)carbodiimide compounds are, for example, marketed by the company Stahl BV, under the name Permutex XR, or under the name RelcaLink10., under the name Picassian XL and Nisshinbo compounds marketed under the name CARBODILITE with the series V-02, V-02-L2, SV-02, E-02, V-10, SW-12G, E-03A, E-04DG-T, E-05, V-04, V-02B, V-04PF, V-05.

[0071] Preferably, the (poly)carbodiimide compound(s) is (are) chosen from compounds of the following formula (II):

[0072]

[0073] in which

[0074] - Xi and X2 represent, independently, an oxygen atom O, a sulfur atom S or an NH group;

[0075] - Ri and R2 independently represent a hydrocarbon radical optionally in interrupted by one or more heteroatom(s);

[0076] - n and z denote an integer ranging from 1 to 20, with n+z > 2 and w denotes a whole number ranging from 1 to 3;

[0077] - Li independently represents a divalent aliphatic hydrocarbon radical in C 1 - Cig, a C3-Ci5 cycloalkylene radical, a C3-Ci2 heterocycloalkylene group, or a C6-Ci4 arylene group, and mixtures thereof;

[0078] - E independently represents a group chosen from:

[0079] - -O-R3-O-; -S-R4-S-; -R5-N(R6)-R4-N(R6)-R5-,

[0080] in which R3 and R4 independently represent a divalent hydrocarbon radical optionally interrupted by one or more heteroatom(s);

[0081] - R5 independently represents a covalent bond or a hydrocarbon radical saturated divalent, possibly interrupted by one or more heteroatom(s);

[0082] - R6 independently represents a hydrogen atom, or a hydrocarbon radical possibly interrupted by one or more heteroatom(s).

[0083] The term “hydrocarbon radical” means a saturated or unsaturated, linear or branched radical having from 1 to 300 carbon atoms, preferably from 1 to 250 carbon atoms, more preferably from 1 to 200 carbon atoms. Preferably, the hydrocarbon radical is a linear and saturated radical.

[0084] The hydrocarbon radical may comprise one or more cyclic groups.

[0085] The hydrocarbon radical may be interrupted by one or more heteroatom(s), in particular chosen from O, S or N and / or substituted by one or more cation(s), anion(s), or zwitterion(s) or cationic group(s) such as ammonium, anionic group(s) such as carboxylate, or zwitterionic group(s), and / or comprising a metal ion which may be incorporated in the form of a salt.

[0086] The term "heteroatom(s)" means an oxygen O, sulfur S or nitrogen N atom, as well as halogen atoms such as Cl, F, Br and I. If the heteroatom is included in the chain of the hydrocarbon radical, the heteroatom is preferably chosen from oxygen O, sulfur S or nitrogen N atoms.

[0087] Preferably, X1 and X2 independently represent an oxygen atom.

[0088] Preferably, R1 and R2 are independently selected from dialkylaminoalcohols, hydroxycarboxylic acid alkyl esters and (poly)alkylene glycol monoalkyl ethers, in which a hydroxy group has been removed, and mixtures thereof.

[0089] According to a preferred embodiment, R1 and R2 are independently chosen from the following groups (i) to (iv):

[0090] (i) the compound of formula (III) following:

[0091] R7-OC(O)-C(R8)(H)-(III),

[0092] in which R7 represents a C1-C3 alkyl group, and R8 represents a hydrogen atom or a C1-C3 alkyl group, preferably R7 is a methyl and R8 is a hydrogen atom or a methyl.

[0093] (ii) the compound of formula (IV) following:

[0094] R9-[0-CH2-C(H)(Rio)]p-(IV),

[0095] wherein R9 represents a C1-C4 alkyl group, R10 represents a hydrogen atom or a C1-C4 alkyl group and p denotes an integer ranging from 1 to 3; preferably, R9 is methyl, ethyl or butyl and R10 is a hydrogen atom or methyl and p is equal to 1.

[0096] (iii) the compound of formula (V) following:

[0097] (Rh)2N-CH2-C(H)(Ri2)- (V),

[0098] in which Rn represents a C1-C4 alkyl group and R[2 represents a hydrogen atom or a C1-C4 alkyl group; preferably Ru is a methyl, ethyl or butyl and Rn is a hydrogen atom or a methyl.

[0099] (iv) the compound of formula (VI) following:

[0100] R13-[O-CH2-C(H)(R14)]q- (VI),

[0101] in which Rn represents a Cr-C4 alkyl group or a phenyl, RM represents a hydrogen atom or a Cr-C4 alkyl group and q denotes an integer ranging from 4 to 30; preferably Rn is a methyl, ethyl or butyl and Ru is a hydrogen atom or a methyl.

[0102] Preferably, R1 and R2 independently represent a compound of formula (VI) in which Rn represents a Cr-C4 alkyl group or a phenyl, preferably a Cr-C4 alkyl group, more preferably a methyl, R14 represents a hydrogen atom or a Cr-C4 alkyl group, preferably a hydrogen atom and q denotes an integer ranging from 4 to 30.

[0103] According to an alternative embodiment, R1 and R2 are different and one of the radicals R1 or R2 represents a compound of formula (IV) as described above and the other radical R1 or R2 represents a compound of formula (VI) as described above.

[0104] Preferably, in formula (IV), R9 is methyl, ethyl or butyl and Rio is hydrogen or methyl and p is 1.

[0105] Preferably, in formula (VI), Rb is methyl, ethyl or butyl and R[4 is hydrogen or methyl and q denotes an integer ranging from 4 to 30.

[0106] According to another alternative embodiment, R1 and R2 are identical and represent a compound of formula (VI) in which Rn represents a Cr-C4 alkyl group or a phenyl, preferably a Cr-C4 alkyl group, more preferably a methyl, R[4 represents a hydrogen atom or a Cr-C4 alkyl group, preferably a hydrogen atom and q denotes an integer ranging from 4 to 30.

[0107] Preferably, n denotes an integer ranging from 1 to 20, more preferably from 2 to 20.

[0108] Preferably, z denotes an integer ranging from 1 to 20, more preferably from 2 to 20.

[0109] Preferably, w is equal to 1.

[0110] Preferably, w is equal to 1, n+z denotes an integer ranging from 4 to 10.

[0111] Preferably, Li is chosen from a divalent C 1 -C 10 aliphatic hydrocarbon radical. -Ci8 such as methylene, ethylene, and propylene, a C3-Cb cycloalkylene radical such as cyclopentylene, cycloheptylene, and cyclohexylene, a C3-Ci2 heterocycloalkylene group such as imidazolene, pyrrolene, and furanylene, or a C6-Ci4 arylene group such as phenylene, and mixtures thereof.

[0112] For example, Li may be chosen from a radical derived from tolylene diisocyanate,

[0113]

[0114] hexamethylene diisocyanate, xylylene diisocyanate, 2,2,4-trimethylhexamethylene diisocyanate, 1,12-dodecane diisocyanate, norbornane diisocyanate, 2,4-bis-(8-isocyanateoctyl)-1,3-dioctylcyclobutane, 4,4'-dicylclohexylmethane diisocyanate, tetramethylxylylene diisocyanate, isophorone diisocyanate, 1,5-naphthylene diisocyanate, 4,4'-diphenylmethane diisocyanate, 4,4'-diphenyldimethylmethane diisocyanate and phenylene diisocyanate and mixtures thereof. Preferably, Li is chosen from a C3-C15 cycloalkylene radical, or a C6-C14 arylene group and mixtures thereof, such as the compounds of formula (VII) below:

[0115]

[0116]

[0117] Preferably, L1 is 4,4-dicyclohexylene methane corresponding to the following formula (VIII): According to another embodiment, when L1 is a C6-C14 arylene group, Li is not the m-tetramethylxylylene radical represented by the following formula (IX):

[0118] . (IX).

[0119] As indicated previously, E independently represents a group chosen from:

[0120] - -O-R3-O-; -S-R4-S-; -R5-N(R6)-R4-N(R6)-R5-;

[0121] in which R3 and R4 independently represent a divalent hydrocarbon radical optionally interrupted by one or more heteroatom(s);

[0122] - R5 independently represents a covalent bond or a hydrocarbon radical saturated divalent, optionally interrupted by one or more heteroatom(s); and

[0123] - R6 independently represents a hydrogen atom, or a hydrocarbon radical possibly interrupted by one or more heteroatom(s).

[0124] Preferably, R3 and R4 are independently chosen from a C6-CM arylene radical such as phenylene, a C3-Ci2 cycloalkylene radical such as cyclopropylene and cyclobutylene, a linear or branched CrCi8 alkylene radical such as methylene and ethylene, optionally interrupted by one or more heteroatom(s) and mixtures thereof.

[0125] More preferably, R3 and R4 are independently chosen from a linear or branched CrCi8 alkylene radical such as methylene, butylene, propylene, ethylene, optionally interrupted by one or more heteroatom(s).

[0126] Preferably, when R5 is not a covalent bond, R5 is chosen from a C6-Ci4 arylene radical such as phenylene, a C3-Ci2 cycloalkylene radical such as cyclopropylene and cyclobutylene, a linear or branched C1-Ci8 alkylene radical such as methylene and ethylene, optionally interrupted by one or more heteroatom(s), and mixtures thereof.

[0127] Preferably, R6 is chosen from a C6-Ci4 arylene radical such as phenylene, a C3-Ci2 cycloalkylene radical such as cyclopropylene and cyclobutylene, a linear or branched C1-Ci8 alkylene radical such as methylene and ethylene, optionally interrupted by one or more heteroatom(s), and mixtures thereof.

[0128] Preferably, E represents a group -O-R3-O- in which R3 is chosen from a C6-Ci4 arylene radical, a C3-Ci2 cycloalkylene radical, a linear or branched C1Ci8 alkylene radical, optionally interrupted by one or more heteroatom(s), and mixtures thereof.

[0129] More preferably, E represents a group - -O-R3-O- in which R3 represents a linear or branched CrCi8 alkylene radical such as methylene, butylene, propylene, ethylene, possibly interrupted by one or more heteroatom(s).

[0130] According to a particular embodiment, the (poly)carbodiimide compound is a copolymer derived from alpha-methylstyryl-isocyanates of the following formula (X):

[0131] (X),

[0132] wherein R independently represents an alkyl group having from 1 to 24 carbon atoms, a cycloalkyl group having from 3 to 24 carbon atoms or an aryl group having from 6 to 24 carbon atoms, and,

[0133] n denotes an integer ranging from 2 to 100.

[0134] In this embodiment, the term “alkyl group” is as defined above.

[0135] In this embodiment, the term “cycloalkyl group” is as defined above.

[0136] In this embodiment, n can denote an integer ranging from 2 to 50, preferably from 3 to 30, more preferably from 5 to 10.

[0137] According to another particular embodiment, the (poly)carbodiimide compound is a compound of the following formula (XI):

[0138] (XI), ......

[0139] wherein R independently represents an alkyl group having from 1 to 24 carbon atoms, a cycloalkyl group having from 3 to 24 carbon atoms, or an aryl group having from 6 to 24 carbon atoms.

[0140] “Alkyl group”, “cycloalkyl group” and “aryl group” are as defined above.

[0141] According to a preferred embodiment, the (poly)carbodiimide compound is chosen from the compounds of formula (I) or of formula (II) in which:

[0142] - Xi and X2 independently represent an oxygen atom;

[0143] - R1 and R2 are independently chosen from dialkylaminoalcohols, al- esters hydroxycarboxylic acid alkyls and monoalkyl ethers of (poly)alkylene glycol, in which a hydroxy group has been removed, and mixtures thereof, preferably monoalkyl ethers of (poly)alkylene glycol, in which a hydroxy group has been removed, more preferably, the compound of formula (VI) as described above in which Rn represents a C1-C4 alkyl group or a phenyl, preferably a C1-C4 alkyl group, more preferably a methyl, RM represents a hydrogen atom or a C1-C4 alkyl group, preferably a hydrogen atom and q denotes an integer ranging from 4 to 30

[0144] - n and z, when present, denote an integer ranging from 1 to 20, with n+z > 2 and w is equal to 1;

[0145] - Li, when present, is chosen from an aliphatic hydrocarbon radical divalent C1-C18, a C3-C15 cycloalkylene radical, a C3-C12 heterocycloalkylene group, or a C6-C14 arylene group, and mixtures thereof, preferably a C3-C15 cycloalkylene radical;

[0146] - A, when present, is chosen from an aliphatic hydrocarbon radical divalent C1-C18, a C3-C15 cycloalkylene radical, a C3-C12 heterocycloalkylene group, or a C6-C14 arylene group, and mixtures thereof, preferably a C3-C15 cycloalkylene radical;

[0147] - E, when present, independently represents a group chosen from:

[0148] - -O-R3-O-; -S-R4-S-; -R5-N(R6)-R4-N(R6)-R5-;

[0149] in which R3 and R4 are independently chosen from a C6-Ci4 arylene radical, a C3-Ci2 cycloalkylene radical, a linear or branched CrCi8 alkylene radical, optionally interrupted by one or more heteroatom(s), and mixtures thereof;

[0150] - when R5 is not a covalent bond, R5, when present, is chosen from a C6-Ci4 arylene radical, a C3-Ci2 cycloalkylene radical, a linear or branched CrCi8 alkylene radical, optionally interrupted by one or more heteroatom(s), and mixtures thereof; and

[0151] - R6, when present, is chosen from a C6-C14 arylene radical, a cy radical C3-C12 alkylene, a linear or branched CrC18 alkylene radical, optionally interrupted by one or more heteroatom(s), and mixtures thereof.

[0152] Preferably, the (poly)carbodiimide compound is chosen from the compounds of formula (II) in which:

[0153] - Xi and X2 independently represent an oxygen atom;

[0154] - R1 and R2 are independently chosen from dialkylaminoalcohols, al- esters hydroxycarboxylic acid alkyl ethers and (poly)alkylene glycol monoalkyl ethers, in which one hydroxy group has been removed, and mixtures thereof;

[0155] - n and z denote an integer ranging from 1 to 20, with n+z > 2 and w is equal to 1;

[0156] - Li is chosen from a divalent aliphatic hydrocarbon radical in CrCi8, a C3-Ci5 cycloalkylene radical, a C3-Ci2 heterocycloalkylene group, or a C6-Ci4 arylene group, and mixtures thereof;

[0157] - E independently represents a group chosen from:

[0158] - -O-R3-O-; -S-R4-S-; -R5-N(R6)-R4-N(R6)-R5-;

[0159] in which R3 and R4 are independently chosen from a C6-Ci4 arylene radical, a C3-Ci2 cycloalkylene radical, a linear or branched CrCi8 alkylene radical, optionally interrupted by one or more heteroatom(s), and mixtures thereof;

[0160] - when R5 is not a covalent bond, R5 is chosen from an arylene radical in C6-Ci4, a C3-Ci2 cycloalkylene radical, a linear or branched C1-Ci8 alkylene radical, optionally interrupted by one or more heteroatom(s), and mixtures thereof; and

[0161] -R6 is chosen from a C6-Ci4 arylene radical, a C3-Ci2 cycloalkylene radical, a linear or branched C1-C18 alkylene radical, optionally interrupted by one or more heteroatom(s), and mixtures thereof.

[0162] More preferably, the (poly)carbodiimide compound is chosen from the compounds of formula (II) in which:

[0163] - Xi and X2 independently represent an oxygen atom;

[0164] - R1 and R2 are independently monoalkyl ethers of (poly)alkylene glycol, in which a hydroxy group has been removed;

[0165] - n and z denote an integer ranging from 1 to 20, with n+z > 2 and w is equal to 1;

[0166] - Li is a C3-Ci5 cycloalkylene radical;

[0167] - E independently represents a group chosen from:

[0168] - -O-R3-O-; -S-R4-S-; -R5-N(R6)-R4-N(R6)-R5-;

[0169] in which R3 and R4 are independently chosen from a C6-Ci4 arylene radical, a C3-Ci2 cycloalkylene radical, a linear or branched CrCi8 alkylene radical, optionally interrupted by one or more heteroatom(s), and mixtures thereof;

[0170] - when R5 is not a covalent bond, R5 is chosen from an arylene radical in C6-Ci4, a C3-Ci2 cycloalkylene radical, a linear or branched C1-Ci8 alkylene radical, optionally interrupted by one or more heteroatom(s), and mixtures thereof; and

[0171] -R6 is chosen from a C6-Ci4 arylene radical, a C3-Ci2 cycloalkylene radical, a linear or branched CrCi8 alkylene radical, optionally interrupted by one or more heteroatom(s), and mixtures thereof.

[0172] Even more preferably, the (poly)carbodihnide compound is chosen from the compounds of formula (II) in which:

[0173] - Xi and X2 independently represent an oxygen atom;

[0174] - R1 and R2, independently represent the compound of formula (VI) following:

[0175] R13-[O-CH2-C(H)(R14)]q- (VI),

[0176] in which Rn represents a C1-C4 alkyl group or a phenyl, preferably a C1-C4 alkyl group, more preferably a methyl, RM represents a hydrogen atom or a C1-C4 alkyl group, preferably a hydrogen atom and q denotes an integer ranging from 4 to 30;

[0177] - n and z denote an integer ranging from 2 to 20, with n+z ranging from 4 to 10 and w is equal to 1;

[0178] - Li is a C3-Ci5 cycloalkylene radical such as cyclopentylene, cyclo- heptylene, cyclohexylene and 4,4-dicyclohexylene methane; and

[0179] - E represents a group -O-R3-O- in which R3 is chosen from a radical C6-Ci4 arylene, a C3-Ci2 cycloalkylene radical, a linear or branched CrCi8 alkylene radical, optionally interrupted by one or more heteroatom(s), and mixtures thereof.

[0180] Even more preferably, the (poly)carbodiimide compound is chosen from the compounds of formula (II) in which:

[0181] - Xi and X2 independently represent an oxygen atom;

[0182] - R1 and R2, independently represent the compound of formula (VI) following:

[0183] R13-[O-CH2-C(H)(R14)]q- (VI)

[0184] in which R[3 represents a C1-C4 alkyl group or a phenyl, preferably a C1-C4 alkyl group, more preferably a methyl, R[4 represents a hydrogen atom or a C1-C4 alkyl group, preferably a hydrogen atom and q denotes an integer ranging from 4 to 30;

[0185] - n and z denote an integer ranging from 2 to 20, with n+z ranging from 4 to 10 and w is equal to 1;

[0186] - Li is a C3-Ci5 cycloalkylene radical such as cyclopentylene, cyclo- heptylene, cyclohexylene, 4,4-dicyclohexylene methane, preferably 4,4-dicyclohexylene methane; and

[0187] - E represents a group -O-R3-O- in which R3 represents a radical linear or branched CrCi8 alkylene such as methylene, propylene, butylene ethylene, optionally interrupted by one or more heteroatom(s).

[0188] According to a preferred embodiment, the (poly)carbodiimide compound is a compound of the following formula (XII):

[0189]

[0190] in which L1 is 4,4-dicyclohexylene methane, n and z denote an integer ranging from 2 to 20, with n+z ranging from 4 to 10, E represents a group -O-R3-O- in which R3 represents a linear or branched CrCi8 alkylene radical such as methylene, propylene, butylene ethylene, optionally interrupted by one or more heteroatom(s), and r and s denote an integer ranging from 4 to 30.

[0191] Advantageously, the total quantity of the (poly)carbodiimide compound(s) ranges from 0.01 to 20% by weight, preferably from 0.1 to 15% by weight, more preferably from 0.2 to 10% by weight, even more preferably from 0.5 to 8%, better still from 1 to 6% by weight relative to the total weight of composition C. Silicone acrylic copolymer

[0192] Composition C used in the context of the process according to the invention comprises one or more silicone acrylic copolymer(s).

[0193] Preferably, said silicone acrylic copolymer(s) comprise:

[0194] - at least one acrylic or methacrylic or crotonic unit; and

[0195] - at least one polydimethylsiloxane (PDMS) unit.

[0196] For the purposes of the present invention, the term "polydimethylsiloxanes" (also abbreviated as PDMS) is understood to mean, in accordance with general acceptance, any organosilicon polymer or oligomer with a linear structure, of variable molecular weight, obtained by polymerization and / or polycondensation of suitably functionalized silanes, and consisting essentially of a repetition of main units in which the silicon atoms are linked together by oxygen atoms (siloxane bond Si- O-Si), comprising methyl radicals directly linked via a carbon atom to said silicon atoms.

[0197] The PDMS chains which can be used to obtain the copolymer used according to the invention comprise at least one polymerizable radical group, preferably located on at least one of the ends of the chain, that is to say that the PDMS can have for example a polymerizable radical group on each of the two ends of the chain or have a polymerizable radical group on one end of the chain and a trimethylsilyl terminal group on the other end of the chain.

[0198] By polymerizable radical group is meant a radical capable of polymerizing with other polymerizable radical groups or monomers. Preferably, the poly-dimethylsiloxane unit comprises at least one polymerizable radical group.

[0199] Preferably, the polymerizable radical group comprises at least one vinyl group.

[0200] Preferably, the polydimethylsiloxane (PDMS) unit comprises at least one polymerizable radical group comprising a vinyl group, preferably at least two polymerizable radical groups comprising a vinyl group, preferably located on at least one of the ends of the chain.

[0201] As indicated previously, said silicone acrylic copolymer(s) preferably comprise at least one acrylic or methacrylic or crotonic unit, i.e. at least one unit comprising a carboxylic group.

[0202] The term “carboxylic group” means a COOH or COO functional group, the counterion of the COO group being able to be chosen from alkali metals, alkaline earth metals, quaternary ammoniums.

[0203] Preferably, said silicone acrylic copolymer(s) comprise:

[0204] - at least one acrylic or methacrylic or crotonic unit, and at least one unit acrylic ester or methacrylic ester or vinyl ester; and

[0205] - at least one polydimethylsiloxane (PDMS) unit.

[0206] More preferably, the composition comprises one or more silicone acrylic copolymers comprising: - at least one crotonic unit and at least one unit chosen from an alkyl crotonate unit, the alkyl radical being a linear or branched, saturated radical containing from 1 to 20 carbon atoms; a vinyl acetate unit; a vinyl alkyl ester unit, the alkyl radical being a linear or branched, saturated radical containing from 2 to 20 carbon atoms; and mixtures thereof; and - at least one polydimethylsiloxane (PDMS) unit.

[0207] By crotonic unit is meant a unit derived from a crotonic acid monomer or one of its salts.

[0208] By alkyl crotonate unit is meant a unit derived from an acid ester monomer crotonic, having a linear or branched, saturated alkyl radical containing from 1 to 20 carbon atoms.

[0209] By vinyl alkyl ester unit is meant a unit derived from a vinyl ester monomer having a linear or branched, saturated alkyl radical containing from 2 to 20 carbon atoms.

[0210] By vinyl acetate unit is meant a unit derived from a vinyl acetate monomer.

[0211] According to a preferred embodiment, said silicone acrylic copolymer(s) comprise: - at least one crotonic unit, at least one vinyl acetate unit and at least one vinyl alkyl ester unit, the alkyl radical being a linear or branched, saturated radical containing from 2 to 20 carbon atoms, preferably from 2 to 18 carbon atoms, and - at least one polydimethylsiloxane (PDMS) unit, preferably comprising at least one polymerizable radical group comprising a vinyl group.

[0212] According to a particularly preferred embodiment, said silicone acrylic copolymer(s) comprise: - at least one crotonic unit, at least one vinyl acetate unit and at least one vinyl alkyl ester unit, the alkyl radical being a linear or branched, saturated radical containing from 6 to 16 carbon atoms, and

[0213] - at least one polydimethylsiloxane (PDMS) unit comprising at least one group polymerizable radical comprising a vinyl group.

[0214] More preferably, the composition comprises one or more silicone acrylic copolymers comprising: - at least one crotonic unit, at least one vinyl acetate unit and at least one vinyl alkyl ester unit, the alkyl radical being a linear or branched, saturated radical containing from 2 to 20 carbon atoms, preferably from 2 to 18 carbon atoms; and - at least one polydimethylsiloxane (PDMS) unit comprising at least one polymerizable radical group comprising a vinyl group.

[0215] Even more preferably, the composition comprises one or more silicone acrylic copolymers comprising:

[0216] - at least one crotonic unit, at least one vinylacetate unit and at least one unit vinyl alkyl ester, the alkyl radical being a linear or branched, saturated radical containing from 6 to 16 carbon atoms; and

[0217] - at least one polydimethylsiloxane (PDMS) unit comprising at least one group polymerizable radical comprising a vinyl group.

[0218] Among the silicone acrylic copolymers that can be used in the context of the invention, mention may be made of the compound sold by the company Wacker Chemie AG under the trade name Belsil® PI 101, with the INCI name Crotonic Acid / Vinyl C8-12 Isoalkyl Esters / VA / Bis-Vinyldimethicone Crosspolymer.

[0219] Advantageously, the total quantity of silicone acrylic copolymer(s) ranges from 0.1 to 30% by weight, preferably from 0.5 to 20% by weight, more preferably from 1 to 15% by weight, better still from 2 to 10% by weight relative to the total weight of composition C. Coloring agent

[0220] Composition C used in the context of the process according to the invention comprises one or more coloring agent(s) chosen from pigments, direct dyes, and mixtures thereof.

[0221] Preferably, the composition C used in the context of the process according to the invention comprises one or more pigments.

[0222] By "pigment" is meant all pigments providing color to keratin materials. Their solubility in water at 25°C and at atmospheric pressure (760 mmHg) is less than 0.05% by weight, and preferably less than 0.01%.

[0223] The pigments which can be used are in particular chosen from organic and / or mineral pigments known in the art, in particular those which are described in the Kirk-Othmer encyclopedia of chemical technology and in the Ullmann encyclopedia of industrial chemistry.

[0224] They can be natural, of natural origin, or not.

[0225] These pigments can be in the form of powder or pigment paste. They can be coated or uncoated.

[0226] The pigments may for example be chosen from mineral pigments, organic pigments, lakes, special effect pigments such as mother-of-pearl or glitter, and mixtures thereof.

[0227] The pigment may be a mineral pigment. By mineral pigment is meant any pigment which meets the definition of the Ullmann encyclopedia in the inorganic pigment chapter. Among the mineral pigments useful in the present invention, mention may be made of iron or chromium oxides, manganese violet, ultramarine blue, chromium hydrate, ferric blue and titanium oxide.

[0228] The pigment may be an organic pigment. By "organic pigment" we mean any pigment that meets the definition in the Ullmann encyclopedia in the organic pigment chapter.

[0229] The organic pigment may in particular be chosen from nitroso, nitro, azo, xanthene, pyrene, quinoline, quinoline, anthraquinone, triphenylmethane, fluorane, phthalocyanine, metal complex type compounds, isoindolinone, isoindoline, qui-nacridone, perinone, perylene, diketopyrrolopyrrole, indigo, thioindigo, dioxazine, triphenylmethane, quinophthalone.

[0230] In particular, the white or colored organic pigments may be chosen from carmine, carbon black, aniline black, azo yellow, quinacridone, phthalocyanine, the blue pigments codified in the Color Index under the references Cl 42090, 69800, 69825, 74100, 74160, the yellow pigments codified in the Color Index under the references Cl 11680, 11710, 19140, 20040, 21100, 21108, 47000, 47005, the green pigments codified in the Color Index under the references Cl 61565, 61570, 74260, the orange pigments codified in the Color Index under the references CI 11725, 45370, 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, 26100, 45380, 45410, 58000, 73360, 73915, 75470, pigments obtained by oxidative polymerization of indole, phenolic derivatives as described in patent FR 2 679 771.

[0231] As an example, we can also cite organic pigment pigment pastes such as the products sold by the company HOECHST under the name:

[0232] - COSMENYL YELLOW IOG: Pigment YELLOW 3 (Cl 11710);

[0233] - COSMENYL YELLOW G: Pigment YELLOW 1 (Cl 11680);

[0234] - ORANGE COSMENYL GR: Pigment ORANGE 43 (Cl 71105);

[0235] - COSMENYL RED R: Pigment RED 4 (Cl 12085);

[0236] - CARMIN COSMENYL FB: Pigment RED 5 (Cl 12490);

[0237] - VIOLET COSMENYL RL: Pigment VIOLET 23 (Cl 51319);

[0238] - COSMENYL BLUE A2R: Pigment BLUE 15.1 (Cl 74160);

[0239] - COSMENYL GREEN GG: Pigment GREEN 7 (Cl 74260);

[0240] - COSMENYL BLACK R: Pigment BLACK 7 (Cl 77266).

[0241] 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 in particular of particles comprising an inorganic core, at least one binder ensuring the fixing of the organic pigments on the core, and at least one organic pigment at least partially covering the core.

[0242] The organic pigment may also be a lake. By lake is meant the dyes adsorbed on insoluble particles, the whole thus obtained remaining insoluble during use.

[0243] The inorganic substrates on which the dyes are adsorbed are, for example, alumina, silica, calcium and sodium borosilicate or calcium and aluminum borosilicate, and aluminum.

[0244] Among the colorants, we can cite carminic acid. We can also cite 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 1 O (CI 77 002), D & C Green 3 (CI 42 053), D & C Blue 1 (CI 42 090).

[0245] As examples of lacquers, we can cite the product known under the following name: D & C Red 7 (CI 15 850:1).

[0246] The pigment may also be a special effect pigment. Special effect pigments are understood to mean pigments which generally create a colored appearance (characterized by a certain shade, a certain liveliness and a certain clarity) which is non-uniform and changes depending on the observation conditions (light, temperature, observation angles, etc.). They are thus opposed to colored pigments which provide a conventional uniform opaque, semi-transparent or transparent shade.

[0247] There are several types of special effect pigments, those with a low refractive index such as fluorescent or photochromic pigments, and those with a higher refractive index such as pearlescent pigments, interference pigments or glitter.

[0248] Examples of special effect pigments include pearlescent pigments such as mica coated with titanium or bismuth oxychloride, colored pearlescent pigments such as mica coated with titanium and iron oxides, mica coated with iron oxide, mica coated with titanium and in particular ferric blue or chromium oxide, mica coated with titanium and an organic pigment as defined above, and pearlescent pigments based on bismuth oxychloride. Pearlescent pigments include Cellini pearlescent pigments marketed by BASF (Mica-TiO 2-lake), Prestige pearlescent pigments marketed by Eckart (Mica-TiO2), Prestige Bronze pearlescent pigments marketed by Eckart (Mica-Fe2O3) and Colorona pearlescent pigments marketed by Merck (Mica-TiO2-Fe2 O3).

[0249] Mention may also be made of gold-colored mother-of-pearls marketed in particular by BASF under the name Brillant gold 212G (Timica), Gold 222C (Cloisonne), Sparkle gold (Timica), Gold 4504 (Chromalite) and Monarch gold 233X (Cloisonne); bronze mother-of-pearls marketed in particular by MERCK under the name Bronze fine (17384) (Colorona) and Bronze (17353) (Colorona) and by BASF under the name Super bronze (Cloisonne); orange mother-of-pearls marketed in particular by BASF 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); brown-tinted mother-of-pearl, notably marketed by BASF under the name Nu-antique copper 340XB (Cloisonne) and Brown CL4509 (Chromalite); copper-reflecting mother-of-pearl, notably marketed by BASF under the name Copper 340A (Timica);red-tinted mother-of-pearl, notably marketed by the company MERCK under the name Sienna fine (17386) (Colorona); yellow-tinted mother-of-pearl, notably marketed by the company BASF under the name Yellow (4502) (Chromalite); red-tinted mother-of-pearl with a gold tint, notably marketed; marketed by BASF under the name Sunstone G012 (Gemtone); pink mother-of-pearls marketed in particular by BASF under the name Tan opale G005 (Gemtone); black mother-of-pearls with a gold sheen marketed in particular by BASF under the name Nu antique bronze 240 AB (Timica), blue mother-of-pearls marketed in particular by MERCK under the name Matte blue (17433) (Microna), white mother-of-pearls with a silver sheen marketed in particular by MERCK under the name Xirona Silver and orangey pinkish-green gold mother-of-pearls marketed in particular by MERCK under the name Indian summer (Xirona) and their mixtures.

[0250] Still as an example of nacres, we can also cite particles comprising a borosilicate substrate coated with titanium oxide.

[0251] Particles with a glass substrate coated with titanium oxide are sold in particular under the name METASHINE MC1080RY by the company TOYAL.

[0252] Finally, as examples of nacres, mention may also be made of polyethylene terephthalate flakes, in particular those marketed by the company Meadowbrook Inventions under the name Silver IP 0.004X0.004 (silver flakes). Multilayer pigments based on synthetic substrates such as alumina, silica, calcium and sodium borosilicate or calcium and aluminum borosilicate, and aluminum may also be considered.

[0253] The special effect pigments may also be chosen from reflective particles, that is to say in particular particles whose size, structure, in particular the thickness of the layer(s) which constitute it and their physical and chemical nature, and surface condition, enable them to reflect incident light. This reflection may, where appropriate, have sufficient intensity to create on the surface of the composition or mixture, when the latter is applied to the support to be made up, highlights visible to the naked eye, that is to say brighter points which contrast with their environment by appearing to shine.

[0254] The reflective particles may be selected so as not to significantly alter the coloring effect generated by the coloring agents associated with them and more particularly so as to optimize this effect in terms of color rendering. They may more particularly have a yellow, pink, red, bronze, orange, brown, gold and / or copper color or reflection.

[0255] These particles can have various shapes, in particular being platelet-shaped or globular, in particular spherical.

[0256] The reflective particles, whatever their shape, may have a multi-layer structure or not and, in the case of a multi-layer structure, for example at least one layer of uniform thickness, in particular of a reflective material.

[0257] When the reflective particles do not have a multi-layer structure, they can be composed for example of metal oxides, in particular titanium or iron oxides obtained by synthesis.

[0258] When the reflective particles have a multi-layer structure, they may for example comprise a natural or synthetic substrate, in particular a synthetic substrate at least partially coated with at least one layer of a reflective material, in particular at least one metal or metallic material. The substrate may be single-material, multi-material, organic and / or inorganic.

[0259] More particularly, it can be chosen from glasses, ceramics, graphite, metal oxides, aluminas, silicas, silicates, in particular aluminosilicates and borosilicates, synthetic mica and their mixtures, this list not being limiting.

[0260] The reflective material may comprise a layer of metal or a metallic material.

[0261] Reflective particles are described in particular in documents JP-A-09188830, JP-A-10158450, JP-A-10158541, JP-A-07258460 and JP-A-05017710.

[0262] Still as an example of reflective particles comprising a mineral substrate coated with a layer of metal, mention may also be made of particles comprising a borosilicate substrate coated with silver.

[0263] Platelet-shaped particles with a silver-coated glass substrate are sold under the name MICROGLASS METASHINE REFSX 2025 PS by the company TOYAL. Particles with a nickel / chromium / molybdenum alloy-coated glass substrate are sold under the name CRYSTAL STAR GF 550, GF 2525 by the same company.

[0264] It is also possible to use particles comprising a metallic substrate such as silver, aluminum, iron, chromium, nickel, molybdenum, gold, copper, zinc, tin, magnesium, steel, bronze, titanium, said substrate being coated with at least one layer of at least one metallic oxide such as titanium oxide, aluminum oxide, iron oxide, cerium oxide, chromium oxide, silicon oxides and mixtures thereof.

[0265] Examples include aluminum, bronze or copper powders coated with SiO2 marketed under the name VISIONAIRE by the company ECKART.

[0266] Mention may also be made of interference effect pigments not fixed on a substrate such as liquid crystals (Helicones HC from Wacker), interference holographic flakes (Geometry Pigments or Spectra f / x from Spectratek). Special effect pigments also include fluorescent pigments, whether they are substances that fluoresce in daylight or that produce ultraviolet fluorescence, phosphorescent pigments, photochromic pigments, thermo- pigments chromic and quantum dots, marketed for example by the company Quantum Dots Corporation.

[0267] The variety of pigments that can be used in the present invention makes it possible to obtain a rich palette of colors, as well as particular optical effects such as metallic and interference effects.

[0268] The size of the pigment used in the composition according to the present invention is generally between 10 nm and 200 qm, preferably between 20 nm and 80 pm, and more preferably between 30 nm and 50 qm.

[0269] The pigments may be dispersed in the composition using a dispersing agent.

[0270] The dispersing agent serves to protect the dispersed particles against their agglomeration or flocculation. This dispersing agent may be a surfactant, an oligomer, a polymer or a mixture of several of them, carrying one or more functionalities having a strong affinity for the surface of the particles to be dispersed. In particular, they may attach physically or chemically to the surface of the pigments. These dispersants also have at least one functional group that is compatible or soluble in the continuous medium.In particular, esters of 12-hydroxystearic acid in particular and of C8 to C20 fatty acid and polyol such as glycerol, diglycerin, such as poly(12-hydroxystearic acid) stearate with a molecular weight of approximately 750g / mol such as that sold under the name Solsperse 21 000 by the company Avecia, polyglyceryl-2 dipolyhydroxystearate (CTFA name) sold under the reference Dehymyls PGPH by the company Henkel or polyhydroxystearic acid such as that sold under the reference Arlacel P100 by the company Uniqema and their mixtures are used.

[0271] As another dispersant that can be used in the compositions of the invention, mention may be made of quaternary ammonium derivatives of polycondensed fatty acids such as Solsperse 17 000 sold by the company Avecia, poly dimethylsiloxane / oxypropylene mixtures such as those sold by the company Dow Corning under the references DC2-5185, DC2-5225 C.

[0272] The pigments used in the composition may be surface-treated with an organic agent.

[0273] Thus, the previously surface-treated pigments useful in the context of the invention are pigments which have undergone totally or partially a surface treatment of a chemical, electronic, electrochemical, mechanochemical or mechanical nature, with an organic agent such as those described in particular in Cosmetics and Toiletries, February 1990, Vol. 105, p. 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 their derivatives, such as stearic acid, hydroxystearic acid, stearyl alcohol, hydroxystearyl alcohol, lauric acid and their derivatives; anionic surfactants; lecithins; sodium, potassium, magnesium, iron, titanium, zinc or aluminium salts of fatty acids, for example aluminium stearate or laurate; metal alkoxides; polyethylene; (meth)acrylic polymers, for example polymethylmethacrylates; polymers and copolymers containing acrylate units; alkanoamines; silicone compounds, for example silicones, in particular polydimethylsiloxanes; fluorinated organic compounds, for example perfluoroalkyl ethers; fluoro-silicone compounds.

[0274] The surface-treated pigments useful in the composition may also have been treated with a mixture of these compounds and / or have undergone several surface treatments.

[0275] The surface-treated pigments useful in the context of the present invention can be prepared according to surface treatment techniques well known to those skilled in the art or found as such commercially.

[0276] Preferably, the surface-treated pigments are covered by an organic layer.

[0277] The organic agent with which the pigments are treated can be deposited on the pigments by solvent evaporation, chemical reaction between the molecules of the surfactant or creation of a covalent bond between the surfactant and the pigments.

[0278] The surface treatment can thus be carried out for example by chemical reaction of a surfactant with the surface of the pigments and creation of a covalent bond between the surfactant and the pigments or fillers. This method is described in particular in US patent 4,578,266.

[0279] Preferably, an organic agent covalently bound to the pigments will be used.

[0280] The surface treatment agent may represent from 0.1 to 50% by weight of the total weight of the surface-treated pigment, preferably from 0.5 to 30% by weight, and even more preferably from 1 to 20% by weight of the total weight of the surface-treated pigment.

[0281] Preferably, the surface treatments of the pigments are chosen from the following treatments:

[0282] - a PEG-Silicone treatment such as the AQ surface treatment marketed by LCW;

[0283] - a Methicone treatment such as the SI surface treatment marketed by LCW;

[0284] - a Dimethicone treatment like Covasil 3.05 com surface treatment marketed by LCW;

[0285] - a Dimethicone / Trimethylsiloxysilicate treatment as the surface treatment Covasil 4.05 marketed by LCW;

[0286] - a Magnesium Myristate treatment such as the MM com surface treatment marketed by LCW;

[0287] - an Aluminum Dimyristate treatment such as the MI com surface treatment Merchandised by Miyoshi;

[0288] - a Perfluoropolymethylisopropyl ether treatment as the surface treatment FHC marketed by LCW;

[0289] - an Isostearyl Sebacate treatment like the commercialized HS surface treatment by Miyoshi;

[0290] - a Perfluoroalkyl Phosphate treatment such as the PF surface treatment marketed by Daito;

[0291] - an acrylate / Dimethicone and Perfluoroalkyl Phosphate Copolymer treatment such as the FSA surface treatment marketed by Daito;

[0292] - a Polymethylhydrogen siloxane / Perfluoroalkyl Phosphate treatment such as the FS01 surface treatment marketed by Daito;

[0293] - an Acrylate / Dimethicone Copolymer treatment as the surface treatment ASC marketed by Daito;

[0294] - an Isopropyl Titanium Triisostearate treatment such as the ITT surface treatment marketed by Daito;

[0295] - an Acrylate copolymer treatment such as APD surface treatment com sold by Daito;

[0296] - a Perfluoroalkyl Phosphate / Isopropyl Titanium Triisostearate treatment such as the PF + ITT surface treatment marketed by Daito.

[0297] According to a particular embodiment of the invention, the dispersing agent is present with organic or inorganic pigments in particulate form of sub-micron size in composition B.

[0298] By "sub-micronic" or in English "sub-micronic" is meant pigments whose particle size has been micronized by micronization method and whose average particle size is less than one micrometer (pm), in particular between 0.1 and 0.9 pm, and preferably between 0.2 and 0.6 pm.

[0299] According to one embodiment, the dispersing agent and the pigment(s) are present in an amount (dispersant: pigment), according to a weight ratio, of between 1:4 and 4:1, particularly between 1.5:3.5 and 3.5:1 or better between 1.75:3 and 3:1.

[0300] The dispersing agent(s) may therefore have a silicone backbone, such as silicone polyether and amino-silicone dispersants, other than the amino silicones mentioned below. Suitable dispersing agents include:

[0301] - amino-silicones ie silicones comprising one or more amino groups such than those marketed 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, marketed by Genesee Polymers,

[0302] - silicone acrylates such as Tego ® RC 902, Tego ® RC 922, Tego ® RC 1041, and Tego ® RC 1043, marketed by Evonik,

[0303] - polydimethylsiloxane silicones (PDMS) with carboxylic groups such as X- 22162 and X-22370 by Shin-Etsu, silicone epoxy 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.

[0304] According to a particular embodiment, the dispersing agent(s) are of amino-silicone type different from the amino silicones mentioned below and are cationic.

[0305] Preferably, the pigment(s) is(are) chosen from mineral, mixed mineral-organic or organic pigments.

[0306] In one variant of the invention, the pigment(s) are organic pigments, preferably organic pigments surface-treated with an organic agent chosen from silicone compounds. In another variant of the invention, the pigment(s) are mineral pigments.

[0307] Preferably, the pigment(s) are chosen from iron oxides, in particular red, brown or black. As an example of iron oxide, mention may be made of iron oxide sold by the company Sun Chemical under the name SunPuro® Red Iron Oxide.

[0308] Direct dye

[0309] Composition C used in the context of the process according to the invention may comprise one or more direct dye(s).

[0310] By "direct dye" we mean natural and / or synthetic dyes, different from oxidation dyes. These are dyes which will diffuse superficially on the fiber.

[0311] They can be ionic or non-ionic, preferably cationic or non-ionic.

[0312] Examples of suitable direct dyes that may be mentioned include azo direct dyes; (poly)methine dyes such as cyanines, hemicyanines and styryls; carbonyl dyes; azine dyes; nitro(hetero)aryl dyes; tri(hetero)arylmethane dyes; porphyrin dyes; phthalocyanine dyes and natural direct dyes, alone or as mixtures.

[0313] The direct dyes are preferably cationic direct dyes. Mention may be made of the hydrazono cationic dyes of formulae (XIII) and (XIV), the azo cationic dyes (XV) and (XVI) below:

[0314] n'^VT? \ v rj (XIII), LJ Ret'-X(>a)-^=C(R^ v 7

[0315] Hét*-C(Ra)=NN(Rb)-Aî» Q (XIV),

[0316] Hét+-N=N-Ar: Q- ^XV)'

[0317]

[0318] formulas (XIII) to (XVI) in which:

[0319] - Hét+ represents a cationic heteroaryl radical, preferably with a ca charge endocyclic cationic such as imidazolium, indolium, or pyridinium, optionally substituted preferentially by at least one (CrC8)alkyl group such as methyl;

[0320] - Ar+ represents an aryl radical, such as phenyl or naphthyl, with a cationic charge exocyclic preferentially ammonium particularly tri(Ci-C8)alkyl-ammonium such as trimethylammonium;

[0321] - Ar represents an aryl group, in particular phenyl, optionally substituted, preferentially by one or more electron-donating groups such as i) (Ci-C8)alkyl optionally substituted, ii) (Ci-C8)alkoxy optionally substituted, iii) (di)(Ci-C8)(alkyl)amino optionally substituted on the alkyl group(s) by a hydroxyl group, iv) aryl(Ci-C8)alkylamino, v) N-(Ci-C8)alkyl-N-aryl(Ci-C8)alkylamino optionally substituted or Ar represents a julolidine group;

[0322] - Ar” represents an optionally substituted (hetero)aryl group such that phenyl or pyrazolyl optionally substituted, preferably by one or more (CrC8)alkyl, hydroxyl, (di)(Ci-C8)(alkyl)amino, (CrC8)alkoxy or phenyl groups;

[0323] - Ra and Rb, identical or different, representing a hydrogen atom or a (CrC8)alkyl group optionally substituted, preferably by a hydroxyl group;

[0324] or the substituent Ra with a substituent of Het+ and / or Rb with a substituent of Ar form together with the atoms which carry them a (hetero)cycloalkyl; particularly Ra and Rb, representing a hydrogen atom or a (CrC4)alkyl group optionally substituted by a hydroxyl group;

[0325] - Q- represents an organic or inorganic anionic counterion such as a halide or an alkyl sulfate.

[0326] In particular, mention may be made of the direct dyes with endocyclic azo and hydrazono cationic charge of formula (XIII) to (XVI) as defined above; more particularly, the direct cationic dyes with endocyclic cationic charge described in patent applications WO 95 / 15144, WO 95 / 01772 and EP-714954; preferably the following direct dyes:

[0327]

[0328]

[0329]

[0330]

[0331]

[0332]

[0333]

[0334]

[0335]

[0336]

[0337] Formulas (XVII) and (XVIII) in which: - R1 represents a (Ci-C4)alkyl group such as methyl; - R2 and R3, identical or different, represent a hydrogen atom or a (Ci-C4)alkyl group such as methyl; and - R4 represents a hydrogen atom or an electron-donating group such as (Ci-C8)alkyl optionally substituted, (Cr-C8)alkoxy optionally substituted, (di)(Cr-C8)(alkyl)amino optionally substituted on the alkyl group(s) by a hydroxyl group; particularly R4 is a hydrogen atom, - Z represents a CH group or a nitrogen atom, preferably CH, - Q- is an anionic counterion as defined above, particularly a halide such as chloride or an alkyl sulfate such as methyl sulfate or mesyl. In particular, the dyes of formula (XV) and (XVI) are chosen from Basic Red 51, Basic Yellow 87 and Basic Orange 31 or their derivatives with Q' an anionic counterion as defined above, particularly halide such as chloride or an alkyl sulfate such as methyl sulfate or mesyl. The direct dyes may be chosen from anionic direct dyes. The anionic direct dyes of the invention are dyes commonly called “acid” direct dyes for their affinity with alkaline substances. Anionic direct dyes means any direct dye comprising in its structure at least one CO2R or SO3R substituent with R denoting a hydrogen atom or a cation originating from a metal or an amine, or an ammonium ion. The anionic dyes may be chosen from acid nitro direct dyes, acid azo dyes, acid azine dyes, acid triarylmethane dyes, acid indoamine dyes, acid anthraquinone dyes, indigoids and acid natural dyes. As acid dyes useful in the invention, mention may be made of the dyes of formulae (XIX), (XIX'), (XX), (XX'), (XXI), (XXI'), (XXII), (XXII'), (XXIII), (XXIV), (XXV) and (XXVI) following:

[0338] a. diaryl anionic azo dyes of formula (XIX) or (XIX'):

[0341] formulas (XIX) and (XIX') in which:

[0342] - R7, R8, R9, Rio, R'7, R'8, R'9 and R'1O, identical or different, represent an atom of hydrogen or a group chosen from:

[0343] - alkyl;

[0344] - alkoxy, alkylthio;

[0345] - hydroxy, mercapto;

[0346] - nitro, nitroso;

[0347] - R°-C(X)-X'-, R°-X'-C(X)-, R°-X'-C(X)-X' ' - with R° representing an atom hydrogen, an alkyl or aryl group; X, X' and X”, identical or different, representing an oxygen, sulfur or NR atom with R representing a hydrogen atom or an alkyl group;

[0348] - (O)2S(O-)-, M+ with M+ representing a hydrogen atom or a counterion ca tionic;

[0349] - (O)CO—, M+ with M+ as defined previously;

[0350] - R”-S(O)2-, with R” representing a hydrogen atom, an alkyl group, a aryl, (di)(alkyl)amino, aryl(alkyl)amino group; preferably a phenylamino or phenyl group;

[0351] - R'”-S(O)2-X'- with R”' representing an alkyl, optionally aryl group substituted, X' as defined above;

[0352] - (di)(alkyl)amino;

[0353] - aryl(alkyl)amino optionally substituted by one or more selected groups among i) nitro; ii) nitroso; iii) (O)2S(O-)-, M+ and iv) alkoxy with M+ as defined previously;

[0354] - optionally substituted heteroaryl; preferably a benzo- group thiazolyl;

[0355] - cycloalkyl, in particular cyclohexyl;

[0356] - Ar-N=N- with Ar representing an optionally substituted aryl group; pre preferably a phenyl optionally substituted by one or more alkyl, (O)2S(O-)-, M+ or phenylamino groups;

[0357] - or two contiguous groups R7 with R8 or R8 with R9 or R9 with R10 together form a fused benzo group A'; and R'7 with R'8 or R'8 with R'9 or R'9 with R'1O together form a fused benzo group B'; with A' and B' optionally substituted by one or more groups chosen from i) nitro; ii) nitroso; iii) (O)2S(O-)-, M+; iv) hydroxy; v) mercapto; vi) (di)(alkyl)amino; vii) R°-C(X)-X'-; viii) R°-X'-C(X)-; ix) R°-X'-C(X)-X”-; x) Ar-N=N- and xi) optionally substituted aryl(alkyl)amino; with M+, R°, X, X', X” and Ar as defined above;

[0358] - W represents a sigma o bond, an oxygen atom, a sulfur atom, or a radical divalent i) -NR- with R as defined above, or ii) methylene -C(Ra)(Rb)- with Ra and Rb identical or different, representing a hydrogen atom or an aryl group, or Ra and Rb together form with the carbon atom which carries them a cycloalkyl spiro; preferably W represents a sulfur atom or Ra and Rb together form a cyclohexyl;

[0359] it being understood that formulas (XIX) and (XIX') comprise at least one sulfonate radical (O)2S(O-)-, M+ or one carboxylate radical (O)CO—, M+ on one of the rings A, A', B, B' or C; preferably sodium sulfonate.

[0360] A titre d’exemple de colorants de formule (XIX) on peut citer : Acid Red 1, Acid Red 4, Acid Red 13, Acid Red 14, Acid Red 18, Acid Red 27, Acid Red 28, Acid Red 32, Acid Red 33, Acid Red 35, Acid Red 37, Acid Red 40, Acid Red 41, Acid Red 42, Acid Red 44, Pigment red 57, Acid Red 68, Acid Red 73, Acid Red 135, Acid Red 138, Acid Red 184, Food Red 1, Food Red 13, Acid Orange 6, Acid Orange 7, Acid Orange 10, Acid Orange 19, Acid Orange 20, Acid Orange 24, Yellow 6, Acid Yellow 9, Acid Yellow 36, Acid Yellow 199, Food Yellow 3; Acid Violet 7, Acid Violet 14, Acid Blue 113, Acid Blue 117, Acid Black 1, Acid Brown 4, Acid Brown 20, Acid Black 26, Acid Black 52, Food Black 1, Food Black 2 ; Food yellow 3 ou sunset yellow;

[0361] et à titre d’exemple de colorants de formule (XIX’) on peut citer : Acid Red 111, Acid Red 134, Acid yellow 38 ;

[0362] b) les colorants azo anioniques pyrrazolone de formule (XX) et (XX’) :

[0365] formulas (XX) and (XX') in which:

[0366] - Rn, R12 and Rn, identical or different, represent a hydrogen atom, of halogen, an alkyl group or -(O)2S(O-), M+ with M+ as defined above;

[0367] - Rm represents a hydrogen atom, an alkyl group or a group - C(O)O-, M+ with M+ as defined previously;

[0368] - Rb represents a hydrogen atom;

[0369] - Ri6 represents an oxo group in which case R'i6 is absent, or else R[5 with R[6 together form a double bond;

[0370] - Rn and Ri8, identical or different, represent a hydrogen atom, or a group chosen from:

[0371] - (O)2S(O-)-, M+ with M+ as defined previously;

[0372] - Ar-OS(O)2- with Ar representing an optionally substituted aryl group; preferentially a phenyl optionally substituted by one or more alkyl groups;

[0373] - R19 and R2q, together form either a double bond or a benzo D' group, possibly substituted;

[0374] - R' i6, R' 19 and R'2O, identical or different, represent a hydrogen atom or a alkyl or hydroxy group;

[0375] - R2i represents a hydrogen atom, an alkyl group, or alkoxy;

[0376] - Ra and Rb, identical or different, are as defined previously, preferably Ra represents a hydrogen atom and Rb represents an aryl group;

[0377] - Y represents either a hydroxy group or an oxo group;

[0378]

[0379]

[0380]

[0381]

[0382] - * ». „ „ represents a single bond when Y is an oxo group; and represents a double bond when Y represents a hydroxy group; it being understood that formulas (XX) and (XX') comprise at least one sulfonate radical (O)2S(O-)-, M+ or one carboxylate radical -C(O)O-, M+ on one of the rings D or E; preferably sodium sulfonate; Examples of dyes of formula (XX) include: Acid Red 195, Acid Yellow 23, Acid Yellow 27, Acid Yellow 76, and examples of dyes of formula (XX') include: Acid Yellow 17; c) the anthraquinone dyes of formula (XXI) and (XXI'):

[0383] (XXD,

[0384]

[0385]

[0386]

[0387]

[0388]

[0389] formulas (XXI) and (XXI') in which: - R22, R23, R24, R25, R26 and R27, identical or different, represent a hydrogen atom, a halogen atom, or a group chosen from: - alkyl; - hydroxy, mercapto; - alkoxy, alkylthio; - optionally substituted aryloxy or arylthio, preferably substituted by one or more groups chosen from alkyl and (O)2S(O-)-, M+ with M+ as defined above;

[0390]

[0391]

[0392]

[0393]

[0394]

[0395]

[0396]

[0397]

[0398]

[0399]

[0400]

[0401]

[0402]

[0403] - aryl(alkyl)amino optionally substituted by one or more groups chosen from alkyl and (O)2S(O-)-, M+ with M+ as defined previously; - (di)(alkyl)amino; - (di)(hydroxyalkyl)amino - (O)2S(O-)-, M+ with M+ as defined previously; - Z' represents a hydrogen atom or a group NR28R29 with R28 and R29, identical or different, representing a hydrogen atom or a group chosen from: - alkyl; - polyhydroxyalkyl such as hydroxyethyl; - aryl optionally substituted by one or more groups, particularly i) alkyl such as methyl, n-dodecyl, n-butyl; ii) (O)2S(O-)-, M+ with M+ as defined above; iii) R°-C(X)-X'-, R°-X'-C(X)-, R°-X'-C(X)-X”- with R°, X, X' and X” as defined above, preferably R° represents an alkyl group; - cycloalkyl, in particular cyclohexyl; - Z represents a group chosen from hydroxy and NR'28R'29 with R'28 and R'29, identical or different, representing the same atoms or groups as R28 and R29 as defined previously; it being understood that formulas (XXI) and (XXI') comprise at least one sulfonate radical (O)2S(O-)-, M+ or one carboxylate radical -C(O)O-, M+; preferably sodium sulfonate; Examples of dyes of formula (XXI) include: Acid Blue 25, Acid Blue 43, Acid Blue 62, Acid Blue 78, Acid Blue 129, Acid Blue 138, Acid Blue 140, Acid Blue 251, Acid Green 25, Acid Green 41, Acid Violet 42, Acid Violet 43, Mordant Red 3; EXT violet No. 2; and examples of dyes of formula (XXI') include: Acid Black 48; (d) nitrated dyes of formula (XXII), (XXII'): (XXII),

[0404] (XXII'),

[0405] formulas (XXII) and (XXII') in which:

[0406] - R3o, R3i and R32, identical or different, represent a hydrogen atom, of halogen, or a group chosen from:

[0407] - alkyl;

[0408] - alkoxy optionally substituted by one or more hydroxy groups, alkylthio optionally substituted by one or more hydroxy groups;

[0409] - hydroxy, mercapto;

[0410] - nitro, nitroso;

[0411] - polyhaloalkyl;

[0412] - R°-C(X)-X'-, R°-X'-C(X)-, R°-X'-C(X)-X”- with R°; X, X' and X” as defined previously;

[0413] - (O)2S(O-)-, M+ with M+ as defined previously;

[0414] - (O)CO—, M+ with M+ as defined previously;

[0415] - (di)(alkyl)amino;

[0416] - (di)(hydroxyalkyl)amino;

[0417] - heterocycloalkyl such as piperidino, piperazino or morpholino; particularly R 30, R3i and R32 represent a hydrogen atom;

[0418] - Rc and Rd, identical or different, represent a hydrogen atom or a alkyl group;

[0419] - W is as defined above; W particularly represents a group -NH-;

[0420] - ALK represents a linear or branched divalent alkylene group, C1-C6; particularly ALK represents a -CH2-CH2- group;

[0421] - n is 1 or 2;

[0422] - p represents an integer between 1 and 5 inclusive;

[0423] - q represents an integer between 1 and 4 inclusive;

[0424] - u is 0 or 1;

[0425] - when n is 1, J represents a nitro, or nitroso group; particularly nitro ;

[0426] - when n is 2, J represents an oxygen atom, a sulfur atom, or a divalent radical -S(0)m- with m representing an integer 1 or 2; preferably J represents a radical -S02- ;

[0427] - M' represents a hydrogen atom or a cationic counterion;

[0428] - ... present or absent represents a benzo group possibly

[0429]

[0430]

[0431]

[0432] substituted by one or more R30 groups as defined above, it being understood that formulas (XXII) and (XXII') comprise at least one sulfonate radical (O)2S(O-)-, M+ or a carboxylate radical -C(O)O-, M+; preferably sodium sulfonate. Examples of dyes of formula (XXII) include: Acid Brown 13; Acid Orange 3; examples of dyes of formula (XXII') include: Acid Yellow 1, 2,4-dinitro-1-naphthol-7-sulfonic acid sodium salt, 2-piperidino 5-nitro benzene sulfonic acid, 2(4'-N,N(2"-hydroxyethyl)amino-2'-nitro)aniline ethane sulfonic acid, 4-[3-hydroxyethylamino-3-nitrobenzene sulfonic acid; EXT D&C yellow 7; e) triarylmethane dyes of formula (XXIII): (XXIII),

[0433] formula (XXIII) in which:

[0434] - R33, R34, R35 and R36, identical or different, represent a hydrogen atom or a group chosen from alkyl, optionally substituted aryl and optionally substituted arylalkyl; particularly an alkyl and benzyl group optionally substituted by a (O)mS(O-)-, M+ group with M+ and m as defined above;

[0435] - R37, R38, R39, R40, R41, R42, R43 and R44, identical or different, represent an atom of hydrogen or a group chosen from:

[0436] - alkyl;

[0437] - alkoxy, alkylthio;

[0438] - (di)(alkyl)amino;

[0439] - hydroxy, mercapto;

[0440] - nitro, nitroso;

[0441] - R°-C(X)-X'-, R°-X'-C(X)-, R°-X'-C(X)-X”- with R° representing an atony hydrogen, an alkyl or aryl group; X, X' and X”, identical or different, representing an oxygen, sulfur or NR atom with R representing a hydrogen atom or an alkyl group;

[0442] - (O)2S(O-)-, M+ with M+ representing a hydrogen atom or a counterion ca tionic;

[0443] - (O)CO—, M+ with M+ as defined previously;

[0444] - or two contiguous groups Ru with R2 or R42 with R3 or R3 with R44 together form a fused benzo group: I'; with I' optionally substituted by one or more groups chosen from i) nitro; ii) nitroso; iii) (O)2 S(O-)-, M+; iv) hydroxy; v) mercapto; vi) (di)(alkyl)amino; vii) R°-C(X)-X'-; viii) R°-X'-C(X)-; ix) R°-X'-C(X)-X”-; with M+, R°, X, X', X” as defined above;

[0445] particularly R37 to Ro represent a hydrogen atom, and R4[ to R4, identical or different, represent a hydroxy group or (O)2S(O-)-, M+; and when R3 with R^ together form a benzo group, it is preferentially substituted by a (O)2S(O-)- group;

[0446] it being understood that at least one of the cycles G, H, I or I' comprises at least one sulfonate radical (O)2S(O-)- or one carboxylate radical -C(O)O-; preferably sulfonate.

[0447] As examples of dyes of formula (XXIII) we can cite: Acid Blue 1; Acid Blue 3; Acid Blue 7, Acid Blue 9; Acid Violet 49; Acid green 3; Acid green 5; Acid Green 50.

[0448] f) dyes derived from xanthene of formula (XXIV):

[0450] formula (XXIV) in which:

[0451] - R5, R46, R7 and R48, identical or different, represent a hydrogen atom or a halogen atom;

[0452] - R9, R50, R5i and R52, identical or different, represent a hydrogen atom, of halogen, or a group chosen from:

[0453] - alkyl;

[0454] - alkoxy, alkylthio;

[0455] - hydroxy, mercapto;

[0456] - nitro, nitroso;

[0457] - (O)2S(O-)-, M+ with M+ representing a hydrogen atom or a counterion ca tionic;

[0458] - (O)CO—, M+ with M+ as defined previously;

[0459] particularly R49, R50, R5i and R52 represent a hydrogen or halogen atom

[0460] - G represents an oxygen atom, a sulfur atom or an NRe group with Re such that defined previously; particularly G represents an oxygen atom;

[0461] - L represents an alcoholate O-, M+; a thioalcoholate S-, M+ or an NRf group, with Rf representing a hydrogen atom or an alkyl group, and M+ as defined previously; M+ is particularly sodium or potassium;

[0462] - L' represents an oxygen atom, sulfur or an ammonium group: N+RfRg, with Rf and Rg, identical or different, representing a hydrogen atom, an alkyl group, an optionally substituted aryl group; L' particularly represents an oxygen atom or a phenylamino group optionally substituted by one or more alkyl groups or (O)mS(O-)-, M+ with m and M+ as defined previously;

[0463] - Q and Q', identical or different, represent an oxygen or sulfur atom; particularly Q and Q' represent an oxygen atom;

[0464] - M+ is as defined previously.

[0465] As examples of dyes of formula (XXIV) we can cite: Acid Yellow 73; Acid Red 51; Acid Red 52, Acid Red 87; Acid Red 92; Acid Red 95; Acid Violet 9;

[0466] g) dyes derived from indole of formula (XXV):

[0467] (XXV),

[0468] formula (XXV) in which:

[0469] - R53, R54, R55, R56, R57, R58, R59 and R60, identical or different, represent an atom of hydrogen or a group chosen from:

[0470] - alkyl;

[0471] - alkoxy, alkylthio;

[0472] - hydroxy, mercapto;

[0473] - nitro, nitroso;

[0474] - R°-C(X)-X'-, R°-X' -C(X)-, R°-X'-C(X)-X' ' - with R° representing an atony hydrogen, an alkyl or aryl group; X, X' and X”, identical or different, representing an oxygen, sulfur or NR atom with R representing a hydrogen atom or an alkyl group;

[0475] - (O)2S(O-)-, M+ with M+ representing a hydrogen atom or a counterion ca tionic;

[0476] - (O)CO—, M+ with M+ as defined previously;

[0477] - G represents an oxygen atom, a sulfur atom or an NRe group with Re such that defined previously; particularly G represents an oxygen atom;

[0478] - Ri and Rh, identical or different, represent a hydrogen atom or a alkyl group;

[0479] it being understood that formula (XXIII) comprises at least one sulfonate radical (O)2S(O-)-, M+ or a carboxylate radical -C(O)O-, M+; preferably sodium sulfonate.

[0480] As examples of dyes of formula (XXV) we can cite: Acid Blue 74;

[0481] h) quinoline-derived dyes of formula (XXVI): (XXVI),

[0483] formula (XXVI) in which:

[0484] - R6i represents a hydrogen atom, halogen or an alkyl group;

[0485] - R62, R63, and RM, identical or different, represent a hydrogen atom or a (O)2S(O-)-, M+ group with M+ representing a hydrogen atom or a cationic counterion;

[0486] or R6[ with R62, or R6[ with R64, together form a benzo group optionally substituted by one or more (O)2S(O-)-, M+ groups with M+ representing a hydrogen atom or a cationic counterion;

[0487] it being understood that formula (XXVI) comprises at least one sulfonate radical (O)2 S(O-)-, M+ preferably sodium sulfonate.

[0488] As examples of dyes of formula (XXVI) we can cite: Acid Yellow 2, Acid Yellow 3 and Acid Yellow 5.

[0489] Among the natural direct dyes that can be used according to the invention, mention may be made of lawsone, juglone, alizarin, purpurin, carminic acid, kermesic acid, purpurogallin, protocatechaldehyde, indigo, isatin, curcumin, spinulosin, apigenidin, orceins. Extracts or decoctions containing these natural dyes and in particular poultices or extracts based on henna may also be used.

[0490] Preferably, the direct dyes are chosen from anionic direct dyes.

[0491] The coloring agent(s) may be present in a total amount ranging from 0.001 to 20% by weight, preferably from 0.005 to 15% by weight relative to the total weight of composition C, preferably the coloring agent(s) are chosen from pigments.

[0492] The pigment(s) may be present in a total amount ranging from 0.05 to 20% by weight, preferably from 0.1 to 15% by weight, better still from 0.5 to 10% by weight relative to the total weight of composition C.

[0493] The direct dye(s) may be present in a total amount ranging from 0.001 to 10% by weight of the total weight of the composition, preferably from 0.005 to 5% by weight relative to the total weight of composition C. Non-carboxylic anionic thickening agent

[0494] Composition C used in the context of the process according to the invention may further comprise at least one non-carboxylic anionic thickening agent.

[0495] For the purposes of the present invention, the term “non-carboxylic agent” means an agent which does not comprise a carboxylic acid (-COOH) or carboxylate (-COO) function.

[0496] For the purposes of the present invention, the term “thickening agent” means a compound which increases the viscosity of a composition into which it is introduced at a concentration of 0.05% by weight relative to the total weight of the composition, by at least 20 cps, preferably by at least 50 cps, at room temperature (25°C), at atmospheric pressure and at a shear rate of 1 s 1 (the viscosity can be measured using a cone / plate viscometer, Haake R600 Rheometer or the like).

[0497] Preferably, the non-carboxylic anionic thickening agent(s) are chosen from non-carboxylic anionic polymers, more preferably from anionic polymers with sulfonic group(s).

[0498] For the purposes of the invention, the term anionic polymer means a polymer comprising one or more anionic or anionizable groups and not comprising a cationic or cationizable group.

[0499] Advantageously, the non-carboxylic anionic thickening agent(s) are chosen from anionic polymers comprising at least one ethylenically unsaturated monomer with a sulfonic group, in free or partially or to- tally neutralized.

[0500] These polymers may be crosslinked or non-crosslinked. They are preferably crosslinked.

[0501] These polymers may be associative or not, preferably non-associative.

[0502] It is recalled that “associative polymers” are polymers capable, in an aqueous medium, of reversibly associating with each other or with other molecules.

[0503] Their chemical structure more particularly comprises at least one hydrophilic zone and at least one hydrophobic zone.

[0504] By "hydrophobic group" is meant a radical or polymer with a hydrocarbon chain, saturated or not, linear or branched, comprising at least 8 carbon atoms, preferably from 10 to 30 carbon atoms, in particular from 12 to 30 carbon atoms and more preferably from 18 to 30 carbon atoms.

[0505] Preferably, the hydrocarbon group originates from a monofunctional compound. For example, the hydrophobic group may originate from a fatty alcohol such as stearyl alcohol, dodecyl alcohol, decyl alcohol. It may also designate a hydrocarbon polymer such as, for example, polybutadiene.

[0506] The ethylenically unsaturated monomers with a sulfonic group are chosen in particular from vinylsulfonic acid, styrenesulfonic acid, (meth)acrylamido(Ci-C22)alkylsulfonic acids, N-(Ci-C22)alkyl(meth)acrylamido-(Ci-C22)alkylsulfonic acids such as undecyl-acrylamido-methane-sulfonic acid as well as their partially or totally neutralized forms.

[0507] More preferably, (meth)acrylamido(Ci-C22) alkylsulfonic acids will be used, such as, for example, acrylamido-methanesulfonic acid, acrylamido-ethanesulfonic acid, acrylamido-propanesulfonic acid, 2-acrylamido-2-methylpropanesulfonic acid, methacrylamido-2-methylpropanesulfonic acid, 2-acrylamido-n-butanesulfonic acid, 2-acrylamido-2,4,4-trimethylpentanesulfonic acid, 2-methacrylamido-dodecylsulfonic acid, 2-acrylamido-2,6-dimethyl-3-heptanesulfonic acid, as well as their partially or totally neutralized forms.

[0508] More particularly, 2-acrylamido-2-methylpropanesulfonic acid (AMPS) and its partially or totally neutralized forms will be used.

[0509] Among the copolymers of 2-acrylamido-2-methylpropane sulfonic acid, mention may be made of crosslinked copolymers of 2-acrylamido-2-methylpropane sulfonic acid and partially or totally neutralized acrylamide, and mention may be made in particular of the product described in Example 1 of document EP 503 853 and reference may be made to this document with regard to these polymers.

[0510] Mention may also be made of copolymers of 2-acrylamido-2-methylpropane sulfonic acid or its salts and hydroxyethyl acrylate, such as the compound sold under the name Sepinov EMT 10 by the company SEPPIC (INCI name: hydroxyethyl acrylate / sodium acryloyldimethyl taurate copolymer).

[0511] The associative AMPS polymers may in particular be chosen from random associative AMPS polymers modified by reaction with a C6-C22 n-monoalkylamine or di-n-alkylamine, and such as those described in patent application WO 00 / 31154 (forming an integral part of the content of the description). These polymers may also contain other ethylenically unsaturated hydrophilic monomers chosen, for example, from (meth)acrylic acid derivatives, such as their esters obtained with monoalcohols or mono- or polyalkylene glycols, (meth)acrylamides, vinylpyrrolidone, or mixtures of these compounds.

[0512] The preferred polymers of this family are chosen from associative copolymers of AMPS and at least one hydrophobic monomer with ethylenic unsaturation.

[0513] These same copolymers may also contain one or more ethylenically unsaturated monomers not comprising a fatty chain such as (meth)acrylic acid derivatives, in particular their esters obtained with monoalcohols or mono- or polyalkylene glycols, (meth)acrylamides, vinylpyrrolidone, or mixtures of these compounds.

[0514] These copolymers are described in particular in patent application EP-A-750899, patent US 5089578 and in the following publications by Yotaro Morishima:

[0515] - “Self-assembly amphiphilic polyelectrolytes and their nanostructures - Chinese Journal of Polymer Science Vol. 18, No. 40, (2000), 323-336. » ;

[0516] - “Miscelle 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, Vol. 33, No. 10 (2000), 3694-3704”;

[0517] - “Solution properties of miscelle networks formed by non-ionic moieties covalently bound to an polyelectrolyte: known effects on rheological behavior - Langmuir, Vol. 16, No. 12, (2000) 5324-5332”;

[0518] - “Stimuli responsive amphiphilic copolymers of sodium 2-(acrylamido)-2-methylpropanesulfonate and associative macromonomers - Polym. Preprint, Div. Polym. Chem., 40(2), (1999), 220-221”.

[0519] Among these polymers, we can cite:

[0520] - crosslinked or non-crosslinked copolymers, neutralized or not, comprising from 15 to 60% by weight of AMPS units and from 40 to 85% by weight of (C8-Ci6)alkyl(meth)acrylamide units or (C8-Ci6)alkyl(meth)acrylate units relative to the polymer, such as those described in application EP-A750 899;

[0521] - terpolymers comprising from 10 to 90 mol% of acrylamide units, from 0.1 to 10 mol% of AMPS units and from 5 to 80 mol% of n-(C6-Ci8)alkylacrylamide units, such as those described in US patent 5089578.

[0522] Mention may also be made of copolymers of fully neutralized AMPS and dodecyl methacrylate as well as non-crosslinked and crosslinked copolymers of AMPS and n-dodecylmethacrylamide, such as those described in the Morishima articles cited above.

[0523] Preferably, the non-carboxylic anionic thickening agent(s) are chosen from the sodium 2-acrylamido-2-methylpropanesulfonate / hydroxyethylacrylate copolymer, marketed by the company SEPPIC (INCI name: hydroxyethylacrylate / sodium acryloyldimethyl taurate copolymer).

[0524] Advantageously, the total amount of the non-carboxylic anionic thickening agent(s) ranges from 0.01 to 20% by weight, preferably from 0.1 to 10% by weight, better still from 0.1 to 5% by weight, and even better still from 0.1 to 3% by weight, relative to the total weight of composition C. Amino silicone

[0525] Composition C used in the context of the process according to the invention may further comprise at least one amino silicone.

[0526] The term “amino silicone” means any silicone comprising at least one primary, secondary, tertiary amine or a quaternary ammonium group.

[0527] Preferably, the amino silicone is different from the silicone acrylic copolymer.

[0528] The weight-average molecular masses of these amino silicones can be measured by Gel Permeation Chromatography (GPC) at room temperature (25°C) in polystyrene equivalent. The columns used are p styragel columns. The eluent is THF, the flow rate is 1 ml / min. 200 μl of a 0.5% by weight solution of silicone in THF are injected. Detection is done by refractometry and UVmetry.

[0529] Preferably, the amino silicone(s) capable of being used in the context of the invention are chosen from:

[0530] a) polysiloxanes corresponding to formula (A):

[0531] CH. 1 ' OH 1 1 Qj rv L -H ri UO CH. 2 x' (HAS)

[0532] in which x' and y' are integers such that the average molecular weight in

[0533]

[0534]

[0535]

[0536]

[0537] weight (Mw) is between approximately 5,000 and 500,000; b) amino silicones corresponding to the formula (B): R'aG3-a-Si(OSiG2)n-(OSiGbR'2-b)mO-SiG3-a-R'a (B) in which: - G, identical or different, denotes a hydrogen atom, a phenyl, OH, Cr-C8 alkyl, for example methyl, or Cr-C8 alkoxy, for example methoxy, group, - a, identical or different, denotes 0 or an integer from 1 to 3, in particular 0, - b denotes 0 or 1, in particular 1, - m and n are numbers such that the sum (n + m) varies from 1 to 2000, in particular from 50 to 150, n being able to designate a number from 0 to 1999, and in particular from 49 to 149 and m being able to designate a number from 1 to 2000, and in particular from 1 to 10; - R', identical or different, denotes a monovalent radical of formula -CqH2qL in which q is a number ranging from 2 to 8, and L is an optionally quaternized amino group chosen from the groups: -N(R")2 ; -N+(R")3 A- ; -NR"-QN(R")2 and -NR"-Q-N+(R")3 A-, in which R", identical or different, denotes hydrogen, phenyl, benzyl, or a monovalent saturated hydrocarbon radical, for example a C1-C20 alkyl radical; Q denotes a group of formula CrH2r, linear or branched, r being an integer ranging from 2 to 6, preferably from 2 to 4; and A- represents a cosmetically acceptable anion, in particular halide such as fluoride, chloride, bromide or iodide. Preferably, the amino silicone(s) are chosen from the amino silicones of formula (B). Preferably, the amino silicones of formula (B) are chosen from the amino silicones corresponding to the following formulas (C), (D), (E), (F), and / or (G). According to a first embodiment, the amino silicones corresponding to formula (B) are chosen from silicones called "trimethylsilylamodimethicone" corresponding to formula (C):

[0538] A n CH, [ " n es OS <CH,}3 CH, (CH2), 1 x w n N H i (CH \ i.yry, nh2 m (C)

[0539] in which m and n are numbers such that the sum (n + m) varies from 1 to 2000, in particular from 50 to 150, n being able to designate a number from 0 to 1999, and in particular from 49 to 149 and m being able to designate a number from 1 to 2000, and in particular from 1 to 10.

[0540] According to a second embodiment, the amino silicones corresponding to formula (B) are chosen from the silicones of the following formula (D):

[0541] (D)

[0542] in which: - m and n are numbers such that the sum (n + m) varies from 1 to 1000, in particular from 50 to 250 and more particularly from 100 to 200; n being able to designate a number from 0 to 999 and in particular from 49 to 249 and more particularly from 125 to 175 and m being able to designate a number from 1 to 1000, in particular from 1 to 10, more particularly from 1 to 5; - Ri, R2, R3, identical or different, represent a hydroxy or alkoxy radical in C1-C4, at least one of the radicals Ri to R3 designating an alkoxy radical.

[0543] Preferably the alkoxy radical is a methoxy radical.

[0544] The hydroxy / alkoxy molar ratio preferably ranges from 0.2:1 to 0.4:1 and preferably from 0.25:1 to 0.35:1 and more particularly is equal to 0.3:1.

[0545] The weight average molecular weight (Mw) of these silicones preferably ranges from 2000 to 1,000,000, more particularly from 3500 to 200,000.

[0546] According to a third embodiment, the amino silicones corresponding to formula (B) are chosen from the following silicones of formula (E):

[0547] (L)

[0548] in which: - p and q are numbers such that the sum (p+q) varies from 1 to 1000, in particular from 50 to 350, and more particularly from 150 to 250; p being able to designate a number from 0 to 999 and in particular from 49 to 349 and more particularly from 159 to 239 and q being able to designate a number from 1 to 1000, in particular from 1 to 10 and more particularly from 1 to 5;

[0549]

[0550]

[0551]

[0552]

[0553]

[0554]

[0555]

[0556]

[0557] - Rb R2, different, represent a hydroxy or alkoxy radical in C1-C4, at least one of the radicals Ri or R2 designating an alkoxy radical. Preferably the alkoxy radical is a methoxy radical. The hydroxy / alkoxy molar ratio generally ranges from 1:0.8 to 1:1.1 and preferably from 1:0.9 to 1:1 and more particularly is equal to 1:0.95. The weight average molecular weight (Mw) of the silicone preferably ranges from 2000 to 200000 and even more particularly from 5000 to 100000 and more particularly from 10000 to 50000. Commercial products comprising silicones of structure (D) or (E) may include in their composition one or more other amino silicones whose structure is different from formulas (D) or (E). A product containing amino silicones of structure (D) is offered by the company WACKER under the name BELSIL® ADM 652. A product containing amino silicones of structure (E) is offered by WACKER under the name Fluid WR 1300® or under the name Belsil ADM Log 1. When these amino silicones are used, a particularly interesting embodiment is their use in the form of an oil-in-water emulsion. The oil-in-water emulsion may comprise one or more surfactants. The surfactants may be of any nature but preferably cationic and / or non-ionic. The number-average size of the silicone particles in the emulsion generally ranges from 3 nm to 500 nanometers. Preferably, in particular as amino silicones of formula (E), microemulsions are used whose average particle size ranges from 5 nm to 60 nanometers (inclusive) and more particularly from 10 nm to 50 nanometers (inclusive). Thus, the microemulsions of amino silicone of formula (E) offered under the names FINISH CT 96 E® or SLM 28020® by the company WACKER may be used according to the invention. According to a fourth embodiment, the amino silicones corresponding to formula (B) are chosen from the silicones of the following formula (F):

[0558] CH, 1 ' HO--Si — 1 CH3 CH 3 A Qi ch. W---Oi 1 CH, CH3 HA 1 NH l (CH A CH. hh2 m in which:

[0559]

[0560]

[0561]

[0562]

[0563]

[0564]

[0565]

[0566]

[0567] - m and n are numbers such that the sum (n + m) varies from 1 to 2000 and in particular from 50 to 150, n being able to designate a number from 0 to 1999 and in particular from 49 to 149 and m being able to designate a number from 1 to 2000, and in particular from 1 to 10; - A denotes a linear or branched alkylene radical having from 4 to 8 carbon atoms and preferably 4 carbon atoms. This radical is preferably linear. The weight average molecular mass (Mw) of these amino silicones preferably ranges from 2000 to 1000000 and even more particularly from 3500 to 200000. Another silicone with formula (B) is, for example, XIAMETER MEM 8299 EMULSION from DOW CORNING (INCI name amodimethicone and trideceth-6 and cetrimonium chloride). According to a fifth embodiment, the amino silicones corresponding to formula (B) are chosen from the silicones of the following formula (G): in which: - m and n are numbers such that the sum (n + m) varies from 1 to 2000 and in particular from 50 to 150, n being able to designate a number from 0 to 1999 and in particular from 49 to 149 and m being able to designate a number from 1 to 2000, and in particular from 1 to 10; - A denotes a linear or branched alkylene radical having from 4 to 8 carbon atoms and preferably 4 carbon atoms. This radical is preferably branched. The weight average molecular mass (Mw) of these amino silicones preferably ranges from 500 to 1,000,000 and even more particularly from 1,000 to 200,000. A silicone with this formula is, for example, DC2-8566 Amino Fluid from DOW CORNING. c) amino silicones corresponding to the formula (H): CHOH —CH,—M (R5> R. If— O (H)

[0568] in which: - R5 represents a monovalent hydrocarbon radical having from 1 to 18 carbon atoms, and in particular a C1-C18 alkyl radical, or C2-C18 alkenyl radical, for example methyl; - R6 represents a divalent hydrocarbon radical, in particular a C1-C18 alkylene radical or a divalent CrCi8 alkyleneoxy radical, for example CrC8 linked to Si by a SiC bond; - Q- is an anion such as a halide ion, in particular chloride or an organic acid salt, in particular acetate; - r represents an average statistical value ranging from 2 to 20, in particular from 2 to 8; - s represents an average statistical value ranging from 20 to 200, in particular from 20 to 50.

[0569] Such amino silicones are notably described in US patent 4,185,087.

[0570] - d) quaternary ammonium silicones of formula (I):

[0571] R- OH l; i Rg-N-CH^HCH R, 1' If:: FC - CH - - CH OH - C H. I R7

[0572] in which: - R7, identical or different, represent a monovalent hydrocarbon radical having from 1 to 18 carbon atoms, and in particular a C1-C18 alkyl radical, a C2-C18 alkenyl radical or a cycle comprising 5 or 6 carbon atoms, for example methyl; - R6 represents a divalent hydrocarbon radical, in particular a C1-C18 alkylene radical or a divalent C1-C18 alkyleneoxy radical, for example C1-C18 linked to Si by a SiC bond; - R8, identical or different, represent a hydrogen atom, a monovalent hydrocarbon radical having from 1 to 18 carbon atoms, and in particular a CrCi8 alkyl radical, a C2-Ci8 alkenyl radical, a -R6-NHCOR7 radical; - X- is an anion such as a halide ion, in particular chloride or an organic acid salt, in particular acetate; - r represents an average statistical value ranging from 2 to 200, in particular from 5 to 100.

[0573] These silicones are for example described in application EP-A-0530974.

[0574] e) amino silicones of formula (J): œ 3

[0576] in which: - Rb R2, Ri and R4, identical or different, denote a C1-C4 alkyl radical or a phenyl group, - R5 denotes a C1-C4 alkyl radical or a hydroxyl group, - n is an integer ranging from 1 to 5, - m is an integer ranging from 1 to 5, and - x is chosen such that the amine index varies from 0.01 to 1 meq / g.

[0577] f) multiblock polyoxyalkylenated amino silicones, of type (AB)n, A being a polysiloxane block and B being a polyoxyalkylenated block comprising at least one amine group.

[0578] Said silicones are preferably made up of repeating units of the following general formulas:

[0579] [-(SiMe2O)xSiMe2 - R -N(R")- R'-O(C2H4O)a(C3H6O)b -R'-N(H)-R-]

[0580] or else

[0581] [-(SiMe2O)xSiMe2 - R -N(R")- R' - O(C2H4O)a(C3H6O)b -]

[0582] in which: - a is an integer greater than or equal to 1, preferably ranging from 5 to 200, more particularly ranging from 10 to 100; - b is an integer between 0 and 200, preferably between 4 and 100, more particularly between 5 and 30; - x is an integer ranging from 1 to 10000, more particularly from 10 to 5000; - R" is a hydrogen atom or a methyl; - R, identical or different, represent a divalent C2-Ci2 hydrocarbon radical, linear or branched, optionally comprising one or more heteroatoms such as oxygen; preferably, R denotes an ethylene radical, a linear or branched propylene radical, a linear or branched butylene radical, or a CH2CH2CH2OCH2 CH(OH)CH2- radical; preferentially R denotes a CH2CH2CH2OCH2CH(OH)CH2 radical - R', identical or different, represent a divalent C2-Ci2 hydrocarbon radical, linear or branched, optionally comprising one or more heteroatoms such as oxygen; preferably, R' denotes an ethylene radical, a linear or branched propylene radical, a linear or branched butylene radical, or a CH2CH2CH2OCH2 CH(OH)CH2- radical; preferentially R' denotes -CH(CH3)-CH2-.

[0583] The siloxane blocks preferably represent 50 and 95 mol% of the total weight of the silicone, more particularly 70 to 85 mol%.

[0584] The amine level is preferably between 0.02 and 0.5 meq / g of copolymer in a 30% solution in dipropylene glycol, more particularly between 0.05 and 0.2.

[0585] The weight average molecular mass (Mw) of the silicone is preferably between 5000 and 1000000, more particularly between 10000 and 200000.

[0586] We can notably cite the silicones marketed under the names Silsoft A-843 or Silsoft A+ by Momentive.

[0587] g) and mixtures thereof.

[0588] Preferably, the amino silicones of formula (B) are chosen from the amino silicones corresponding to formula (E).

[0589] Preferably, the composition C used in the context of the process according to the invention comprises at least one amino silicone.

[0590] Preferably, the composition C used in the context of the process according to the invention comprises at least one amino silicone with the INCI name amodimethicone, preferably introduced in the form of an emulsion or microemulsion with surfactants.

[0591] Preferably, the composition C used in the context of the process according to the invention comprises at least one amino silicone with the INCI name amodimethicone in emulsion or microemulsion with surfactants with the INCI name trideceth-5 and trideceth-10.

[0592] The amino silicone(s) may be present in a total amount varying from 0.01% to 20%, preferably from 0.05 to 15%, more preferably from 0.1 to 10%, even more preferably from 0.2 to 8% by weight relative to the total weight of composition C. Organic solvents

[0593] Composition C used in the context of the process according to the invention may comprise one or more organic solvents.

[0594] Preferably, the composition comprises ethanol.

[0595] The organic solvents may be present in a total amount ranging from 5 to 90% by weight, preferably ranging from 10 to 85% by weight, preferably ranging from 10 to 70% by weight relative to the total weight of composition C.

[0596] The composition C used in the context of the process according to the invention may be aqueous. The water content may range from 0.1 to 50% by weight, preferably from 1 to 50% by weight, more preferably from 10 to 50% by weight relative to the total weight of the composition C. Additives

[0597] Composition C used in the context of the process according to the invention may contain any adjuvant or additive usually used.

[0598] Among the additives that may be contained in the composition, mention may be made of reducing agents, softeners, anti-foaming agents, moisturizing agents, UV filters, peptizers, perfumes, anionic, cationic, non-ionic or amphoteric surfactants, proteins, vitamins, preservatives, oils and mixtures thereof.

[0599] Composition C used in the context of the process according to the invention may be in particular in the form of a suspension, dispersion, gel, emulsion, in particular oil-in-water (O / W) or water-in-oil (W / O) emulsion, or multiple (W / O / W or polyol / O / W or O / W / O), in the form of a cream, mousse, stick, dispersion of vesicles in particular of ionic or non-ionic lipids, two-phase or multi-phase lotion.

[0600] A person skilled in the art will be able to choose the appropriate galenic form, as well as its method of preparation, on the basis of his general knowledge, taking into account on the one hand the nature of the constituents used, in particular their solubility in the support, and on the other hand the application envisaged for the composition. Application of composition D

[0601] As indicated previously, the hair coloring process according to the invention comprises the application to the hair of at least one composition D comprising at least one silicone compound comprising at least one carboxylic group.

[0602] Preferably, the silicone compound comprising at least one carboxylic group is a silicone compound different from the silicone acrylic copolymer and the amino silicone as described previously.

[0603] The term “carboxylic group” means a COOH or COO functional group, the counterion of the COO group being able to be chosen from alkali metals, alkaline earth metals, quaternary ammoniums.

[0604] The silicones that can be used can be soluble or insoluble in composition D; they can be in the form of oil, wax, resin or gum; silicone oils and gums are preferred.

[0605] Silicones are notably described in detail in the work of Walter NOLL "Chemistry and Technology of Silicones" (1968), Academie Press.

[0606] Preferably, the silicone compound(s) comprising at least one carboxylic group are chosen from the organosiloxanes of the following formula (XXVII):

[0607] (XXVII)

[0608] in which: - RI independently represent an alkyl group having from 1 to 20 carbon atoms, preferably from 1 to 10 carbon atoms; a hydroxy group; an alkoxy group having from 1 to 20 carbon atoms or an aryl group having from 6 to 12 carbon atoms; - R2 independently represents a group R4-COOM with R4 representing a linear or branched alkylene group, having from 1 to 20 carbon atoms, preferably from 4 to 16 carbon atoms, optionally interrupted by at least one heteroatom chosen from the sulfur atom, the nitrogen atom, the oxygen atom and their mixtures, and M representing a hydrogen atom; an alkali or alkaline-earth metal or a quaternary ammonium NR'3, with R' identical or different, representing H or alkyl having from 1 to 4 carbon atoms; a pyrrolidone radical comprising a carboxylic group COOH or a group Ra-(ORb)x-COOM with Ra representing a linear or branched alkylene group, having from 1 to 4 carbon atoms, Rb representing an alkyl group having from 1 to 4 carbon atoms, x being an integer ranging from 1 to 200;and M representing a hydrogen atom, an alkali or alkaline earth metal or a quaternary ammonium NR'3, with R', identical or different, representing H or an alkyl having from 1 to 4 carbon atoms; ; - R3 independently represent an alkyl group having from 1 to 20 carbon atoms; a hydroxy group; an R4-COOM group with R4 representing a linear or branched alkylene group, having from 1 to 20 carbon atoms, preferably from 4 to 16 carbon atoms, optionally interrupted by at least one heteroatom chosen from the sulfur atom, the nitrogen atom, the oxygen atom and their mixtures, and M representing a hydrogen atom; an alkali or alkaline-earth metal or a quaternary ammonium NR'3, with R' identical or different, representing H or alkyl having from 1 to 4 carbon atoms; an alkoxy group having from 1 to 20 carbon atoms; an aryl group having from 6 to 12 carbon atoms or a group Ra-(ORb)x -COOM with Ra representing a linear or branched alkylene group having from 1 to 4 carbon atoms, Rb representing an alkyl group having from 1 to 4 carbon atoms, x being an integer ranging from 1 to 200;and M representing a hydrogen atom, an alkali or alkaline earth metal or a quaternary ammonium NR'3, with R'; identical or different, representing H or an alkyl having from 1 to 4 carbon atoms; - n denotes an integer ranging from 1 to 1000; - p designated an integer ranging from 0 to 1000; it being understood that at least one of the radicals R2 and / or R3 comprises a carboxylic group COOH or COOM with M representing an alkali or alkaline-earth metal or a quaternary ammonium NR'3, with R', identical or different, representing H or an alkyl having from 1 to 4 carbon atoms.

[0609] In particular, the silicone compound(s) comprising at least one carboxylic group may be chosen from the organosiloxanes of the following formula (XXVIII):

[0610] RI MOOC— R4—St——O R1 (XXVIII), R1 YES.......R4......COOM Att

[0611] in which: - RI independently represents a linear or branched alkyl group having from 1 to 20 carbon atoms, preferably from 1 to 10 carbon atoms, even better from 1 to 6 carbon atoms; preferably methyl; - R4 independently represents a linear or branched alkylene group, having from 1 to 20 carbon atoms, preferably from 4 to 16 carbon atoms, optionally interrupted by at least one heteroatom chosen from the sulfur atom, the nitrogen atom, the oxygen atom and their mixtures; or a divalent group Ra-(ORb)x- with Ra representing a linear or branched alkylene group, having from 1 to 4 carbon atoms, Rb representing an alkylene group having from 1 to 4 carbon atoms, and x being an integer ranging from 1 to 200; - M independently represents a hydrogen atom, an alkali or alkaline earth metal or a quaternary ammonium NR'3, with R', identical or different, representing H or an alkyl having from 1 to 4 carbon atoms; - n denotes an integer ranging from 1 to 1000;

[0612] - organosiloxanes of the following formula (XXIX):

[0613]

[0614] in which: - RI independently represents an alkyl group having from 1 to 10 carbon atoms, preferably from 1 to 6 carbon atoms, more preferably a methyl - R4 represents a linear or branched, saturated or unsaturated alkylene group having from 1 to 20 carbon atoms, preferably from 4 to 16 carbon atoms, optionally interrupted by at least one heteroatom chosen from the sulfur atom, the nitrogen atom, the oxygen atom and their mixtures; or a divalent group Ra-(ORb)x- with Ra representing a linear or branched alkylene group having from 1 to 4 carbon atoms, Rb representing an alkylene group having from 1 to 4 carbon atoms, and x being an integer ranging from 1 to 200; - M represents a hydrogen atom; an alkali or alkaline earth metal or a quaternary ammonium NR'3, with R' identical or different, representing H or an alkyl having from 1 to 4 carbon atoms; - p denotes an integer ranging from 1 to 1000; - n denotes an integer ranging from 1 to 1000;

[0615] - organosiloxanes of the following formula (XXX): 106161 F “1 <XXX) —; n

[0617] in which: - RI independently represents an alkyl group having from 1 to 20 carbon atoms, preferably from 1 to 10 carbon atoms, even better from 1 to 6 carbon atoms; preferably methyl; - R4 represents a linear or branched alkylene group, having from 1 to 20 carbon atoms, preferably from 4 to 16 carbon atoms, optionally interrupted by at least least one heteroatom selected from the sulfur atom, the nitrogen atom, the oxygen atom and mixtures thereof; or a divalent group Ra-(ORb)x- with Ra representing a linear or branched alkylene group having from 1 to 4 carbon atoms, R b representing an alkylene group having from 1 to 4 carbon atoms, and x being an integer ranging from 1 to 200; - R3 represents an alkyl group having from 1 to 20 carbon atoms; an alkoxy group having from 1 to 20 carbon atoms or an aryl group having from 6 to 12 carbon atoms;

[0618]

[0619]

[0620]

[0621]

[0622]

[0623] - M independently represents a hydrogen atom, an alkali or alkaline earth metal or a quaternary ammonium NR'3, with R', identical or different, representing H or an alkyl having from 1 to 4 carbon atoms; - n denotes an integer ranging from 1 to 1000; - organosiloxanes of the following formula (XXXI): in which: - R8 represents an alkyl group having from 1 to 6 carbon atoms, preferably a methyl; - m denotes an integer ranging from 1 to 1000; - n denotes an integer ranging from 1 to 1000. -and their mixtures. Among the organosiloxanes of formula (XXVIII), we can cite polydimethylsiloxane (PDMS) with carboxy terminal function such as the compounds sold by the company Momentive under the trade name SILFORM INX (INCI name: Bis-Carboxydecyl dimethicone). Among the organosiloxanes of formula (XXIX), we can cite polydimethylsiloxane (PDMS) with a carboxy pendant function such as the compounds sold by the company Shin Etsu under the trade name X-22-3701E.

[0624] Among the organosiloxanes of formula (XXX), mention may be made of polydimethylsiloxane (PDMS) with a carboxy terminal function such as the compounds sold by the company Shin Etsu under the trade name X-22-3710.

[0625] Among the organosiloxanes of formula (XXXI), mention may be made of the compounds sold by the company Grant Industries under the trade name Grandsil SiW-PCA-10 (INCI name: Dimethicone (and) PCA Dimethicone (and) Butylene Glycol (and) Decyl Glucoside).

[0626] The silicone compounds comprising a carboxylic group may, for example, correspond to the compounds described in patent application EPI86507 in the name of Chisso Corporation introduced here by reference.

[0627] Preferably, the silicone compound(s) comprising at least one carboxylic group are chosen from organopolysiloxane of formula (XXVIII), organopolysiloxane of formula (XXIX) and mixtures thereof.

[0628] More preferably, the silicone compound(s) comprising at least one carboxylic group are chosen from the organopolysiloxanes of the following formula (XXVIII):

[0629] (XXVIII)

[0630] in which:

[0631] - RI independently represents an alkyl group, linear or branched, having from 1 to 20 carbon atoms, preferably from 1 to 10 carbon atoms, even better from 1 to 6 carbon atoms; preferably methyl; - R4 independently represents a linear or branched alkylene group, having from 1 to 20 carbon atoms, preferably from 4 to 16 carbon atoms, optionally interrupted by at least one heteroatom chosen from the sulfur atom, the nitrogen atom, the oxygen atom and their mixtures; or a divalent group Ra-(ORb)x- with Ra representing a linear or branched alkylene group, having from 1 to 4 carbon atoms, Rb representing an alkylene group having from 1 to 4 carbon atoms, and x being an integer ranging from 1 to 200; - M independently represents a hydrogen atom, an alkali or alkaline earth metal or a quaternary ammonium NR'3, with R', identical or different, representing H or an alkyl having from 1 to 4 carbon atoms; - n denotes an integer ranging from 1 to 1000.

[0632] Advantageously, the total quantity of silicone compound(s) comprising at least one carboxylic group ranges from 0.01 to 20% by weight, preferably from 0.1 to 15% by weight, more preferably from 0.5 to 10% by weight, better still from 1 to 5% by weight relative to the total weight of composition D. Oils

[0633] Composition D may comprise one or more oil(s).

[0634] Preferably, composition D comprises one or more oil(s). More preferably, composition D comprises one or more oil(s) chosen from alkanes.

[0635] By “oil” is meant a fatty substance which is liquid at room temperature (25°C) and at atmospheric pressure (760 mm Hg or 1.013 105 Pa).

[0636] The oil may be volatile or non-volatile.

[0637] By "volatile oil" is meant an oil capable of evaporating on contact with the skin in less than one hour, at room temperature and atmospheric pressure. Volatile oil is a volatile cosmetic oil, liquid at room temperature. More precisely, a volatile oil has an evaporation rate of between 0.01 and 200 mg / cm2 / min, inclusive (see protocol for measuring the evaporation rate indicated in the text below).

[0638] By "non-volatile oil" is meant an oil remaining on the skin or keratin fiber at room temperature and atmospheric pressure. More precisely, a non-volatile oil has an evaporation rate strictly less than 0.01 mg / cm2 / min (see protocol for measuring the evaporation rate indicated in the text below).

[0639] Preferably, the composition comprises one or more oil(s) chosen from C6-C16 alkanes and / or mixtures thereof.

[0640] As regards C6-Ci6 alkanes, these can be linear, branched, possibly cyclic.

[0641] Mention may in particular be made of branched C8-Ci6 alkanes such as C8-Ci6 isoalkanes (also called isoparaffins), isododecane, isodecane, isohexadecane and for example the oils sold under the trade names Isopars or Permetyls, and their mixtures.

[0642] Mention may also be made of linear alkanes, preferably of plant origin, comprising from 7 to 15 carbon atoms, in particular from 9 to 14 carbon atoms, and more particularly from 11 to 13 carbon atoms.

[0643] As examples of linear alkane suitable for the invention, mention may be made of n-heptane (C7), n-octane (C8), n-nonane (C9), n-decane (C10), n-undecane (C11), n-dodecane (C12), n-tridecane (C13), n-tetradecane (C14), -pentadecane (C15), and their mixtures, and in particular the mixture of n-undecane (Cl 1) and n-tridecane (C13) described in example 1 of application WO2008 / 155059 from Cognis.

[0644] Mention may also be made of n-dodecane (Cl2) and n-tetradecane (Cl4) sold by Sasol respectively under the references PARAFOL 12-97 and PARAFOL 14-97, as well as their mixtures.

[0645] As examples of alkanes suitable for the invention, mention may be made of the alkanes described in patent applications WO 2007 / 068371 and WO2008 / 155059. These alkanes are obtained from fatty alcohols, themselves obtained from copra or palm oil.

[0646] According to a particular embodiment, the composition comprises isododecane. Such a compound is, for example, isododecane sold under the reference ISO-DODECANE by INEOS.

[0647] Preferably, composition D comprises one or more oil(s) chosen from C8-C16 alkanes, more preferably from isododecane, isohexadecane, tetradecane and / or mixtures thereof.

[0648] More preferably, composition D comprises isododecane.

[0649] Composition D may comprise one or more oils present in a total amount of between 30% and 99% by weight, preferably between 50% and 99% by weight, better still between 70% and 99% by weight relative to the total weight of composition D.

[0650] Composition D may comprise at least one coloring agent chosen from pigments, direct dyes, and their mixtures as described previously. Protocol

[0651] Composition C and composition D described above can be used on dry or damp hair, as well as on all types of hair, light or dark, natural or colored, permed, bleached or straightened.

[0652] According to a preferred embodiment, composition C and composition D are applied simultaneously to the keratin fibers.

[0653] According to another preferred embodiment, composition D is applied to the hair after the application of composition C to the hair.

[0654] According to another preferred embodiment, composition D is applied to the hair before applying composition C to the hair.

[0655] More preferably, composition D is applied to the hair after the application of composition C to the hair.

[0656] According to a particular embodiment of the invention, the hair is washed before applying composition C and composition D.

[0657] Preferably, a washing, rinsing, wringing or drying step is carried out after the application of composition C to the hair and before the application of composition D to the hair.

[0658] More preferably, a drying step is carried out after the application of composition C to the hair and before the application of composition D to the hair.

[0659] Application to the hair can be carried out by any conventional means, in particular by means of a comb, a brush, a brush, a sponge or with the fingers.

[0660] The application of composition C and composition D to the hair is generally carried out at room temperature (between 15 and 25°C).

[0661] After applying composition C to the hair, it is possible to wait between 1 minute and 6 hours, in particular between 1 minute and 2 hours, more particularly between 1 minute and 1 hour, more preferably between 1 minute and 30 minutes, before, for example, applying composition D to the hair or, for example, a washing, rinsing, wringing or drying step.

[0662] Preferably, there is no exposure time after the application of composition C to the hair and before the application of composition D to the hair.

[0663] After applying composition C and composition D, the hair may be left to dry or dried, for example at a temperature greater than or equal to 30°C.

[0664] The method according to the invention can thus comprise a step of applying heat to the keratin fibers using a heating tool.

[0665] The heat application step of the method of the invention can be implemented using a helmet, a hair dryer, a straightening or curling iron, a climazon, etc.

[0666] Preferably, the heat application step of the method of the invention is carried out using a hair dryer.

[0667] When the method of the invention implements a step of applying heat to the hair, the step of applying heat to the hair takes place after the application of composition C and composition D to the hair.

[0668] During the step of applying heat to the hair, a mechanical action on the strands can be exerted such as combing, brushing, or passing the fingers through.

[0669] When the step of applying heat to the hair is carried out using a helmet or a hair dryer, the temperature is preferably between 30 and 110°C, preferably between 50 and 90°C.

[0670] When the step of applying heat to the hair is carried out using a hair straightener, the temperature is preferably between 110 and 220°C, preferably between 140 and 200°C.

[0671] In a particular variant, the method of the invention implements a step (cl) of applying heat using a helmet, a hair dryer or a climazon, preferably a hair dryer and a step (c2) of applying heat using a hair straightener or curling iron, preferably a flat iron.

[0672] Step (cl) can be carried out before step (c2).

[0673] During step (cl), also called the drying step, the hair may be dried, for example at a temperature greater than or equal to 30°C. According to a particular embodiment, this temperature is greater than 40°C. According to a particular embodiment, this temperature is greater than 45°C and less than 110°C.

[0674] Preferably, if the hair is dried, it is dried, in addition to a heat supply, with a flow of air. This flow of air during drying makes it possible to improve the individualization of the sheathing.

[0675] During drying, a mechanical action on the strands can be exerted such as combing, brushing, passing the fingers.

[0676] During step (c2), the passage of the straightening or curling iron, preferably the straightening iron, can be carried out at a temperature ranging from 110 to 220°C, preferably between 140 and 200°C.

[0677] After the heating step, a shaping step can be carried out with, for example, a hair straightener, the temperature for the shaping step is between 110 and 220°C, preferably between 140 and 200°C.

[0678] Preferably, the invention is a hair coloring process comprising the following steps: a) the application to the hair of at least one composition C comprising: - one or more (poly)carbodiimide compound(s) as described previously,

[0679] - one or more silicone acrylic copolymer(s) as described previously cededly; and - one or more coloring agent(s) chosen from pigments, direct dyes, and their mixtures; then ii) optionally a time for leaving said composition C on the hair of 1 minute to 30 minutes, preferably 1 to 20 minutes; then iii) optionally a step of washing, rinsing, wringing or drying said hair, then

[0680] b) applying to the hair at least one composition D comprising at least one silicone compound comprising at least one carboxylic group as described previously; then v) optionally a time for leaving said composition D on the hair of 1 minute to 30 minutes, preferably 1 to 20 minutes; then vi) optionally a step of washing, rinsing, wringing or drying the hair.

[0681] Preferably, composition C further comprises at least one amino silicone and / or at least one non-carboxylic anionic thickening agent, as described above. cededly.

[0682] Preferably, the step of applying composition C to the hair is repeated several times.

[0683] According to a preferred embodiment, the coloring process according to the invention is a hair coloring process consisting of mixing extemporaneously at the time of use at least two compositions A and B to obtain a composition C and applying composition C to the hair, with: - composition A comprising one or more (poly)carbodiimide compound(s) as described previously; - composition B comprising one or more silicone acrylic copolymer(s) as described previously,

[0684] composition A and / or composition B comprising at least one coloring agent chosen from pigments, direct dyes, and mixtures thereof; composition A and / or composition B optionally comprising at least one non-carboxylic anionic thickening agent and / or at least one amino silicone as described previously; and

[0685] - the application to the hair of at least one composition D comprising at least a silicone compound comprising at least one carboxylic group as described above, said composition D being applied to the hair before and / or after the application of composition C to the hair.

[0686] Preferably, composition B comprises at least one coloring agent chosen from pigments, direct dyes, and mixtures thereof.

[0687] Preferably, composition A does not comprise at least one coloring agent chosen from pigments, direct dyes, and mixtures thereof.

[0688] According to this embodiment, compositions A and B are preferably mixed less than 15 minutes before application to the hair, more preferably less than 10 minutes before application, better still less than 5 minutes before application.

[0689] The weight ratio between composition A and composition B preferably ranges from 0.1 to 10, preferably from 0.2 to 5, better still from 0.5 to 2, or even from 0.6 to 1.5. In a particular embodiment, the weight ratio between composition A and composition B is equal to 1.

[0690] According to a particular embodiment, the hair coloring process according to the invention is a hair coloring process consisting of mixing extemporaneously at the time of use at least two compositions A and B to obtain a composition C, and applying composition C to the hair, with: - composition A comprising one or more (poly)carbodiimide compound(s) as described above; and - composition B comprising one or more silicone acrylic copolymer(s) as described above, and at least one coloring agent chosen from pigments, direct dyes, and their mixtures; composition A and / or composition B optionally comprising at least one non-carboxylic anionic thickening agent as described previously and / or at least one amino silicone as described previously, and - the application to the hair of at least one composition D comprising at least one silicone compound comprising at least one carboxylic group as described previously, said composition D being applied to the hair before and / or after the application of composition C to the hair.

[0691] Preferably, composition A optionally comprises at least one amino silicone as described previously.

[0692] More preferably, composition A comprises at least one amino silicone as described previously.

[0693] Preferably, composition A optionally comprises at least one non-carboxylic anionic thickening agent as described above.

[0694] More preferably, composition A comprises at least one non-carboxylic anionic thickening agent as described previously.

[0695] The total amount of the (poly)carbodiimide compound(s) preferably ranges from 0.01 to 40% by weight, more preferably from 0.1 to 30% by weight, better still from 0.5 to 20% by weight, even more preferably from 1 to 12% by weight relative to the total weight of composition A.

[0696] The total quantity of the silicone acrylic copolymer(s) preferably ranges from 2 to 60% by weight, more preferably from 5 to 40% by weight, better still from 5 to 20% by weight relative to the total weight of composition B.

[0697] The total amount of the non-carboxylic anionic thickening agent(s) preferably ranges from 0.01 to 20% by weight, more preferably from 0.1 to 10% by weight, better still from 0.1 to 5% by weight, and even better still from 0.1 to 3% by weight relative to the total weight of composition A.

[0698] The amino silicone(s) may be present in a total amount varying from 0.01% to 20%, preferably from 0.05 to 15%, more preferably from 0.1 to 10%, even more preferably from 0.5 to 5% by weight relative to the total weight of composition A. Multi-compartment device (kit)

[0699] The present invention also relates to a device for coloring hair comprising several compartments containing: - in a first compartment, a composition C comprising: a) one or more (poly)carbodiimide compound(s) as described above, b) one or more silicone acrylic copolymers as described above cededly, (c) at least one coloring agent chosen from pigments, direct dyes, and mixtures thereof, and - in a second compartment, a composition D comprising at least one silicone compound comprising at least one carboxylic group as described previously.

[0700] The present invention also relates to a device for coloring hair comprising several compartments containing: - in a first compartment, a composition A comprising: a) one or more (poly)carbodiimide compound(s) as described previously,

[0701] -in a second compartment, a composition B comprising: b) one or more silicone acrylic copolymers as described above, composition A and / or composition B comprising: (c) at least one coloring agent chosen from pigments, direct dyes, and mixtures thereof, and - in a third compartment, a composition D comprising at least one silicone compound comprising at least one carboxylic group as described previously.

[0702] The present invention will now be described more specifically by way of examples, which are in no way limiting of the scope of the invention. However, the examples make it possible to support specific characteristics, variations, and preferred embodiments of the invention. EXAMPLES

[0703] The (poly)carbodiimide(s) of the invention are accessible by the synthesis methods known to those skilled in the art from commercial products or reagents that can be synthesized according to chemical reactions also known to those skilled in the art. Examples include the work Sciences of Synthesis - Houben - Weyl Methods of Molecular Transformations, 2005, Georg Thiem Verlag Kg, Rudigerstrasse 14, D-70469 Stuttgart, or the American patent US 4,284,730 or the Canadian application CA 2,509,861.

[0704] More particularly, the process for preparing the (poly)carbodiimides of the invention uses, during a first step, a diisocyanate reagent (1): O=C=N-LrN=C=O (1), formula (1) in which Li is as defined above, which reacts in the presence of a carboimidation catalyst (2) such as those described in US 4,284,730, in particular phosphorus catalysts particularly chosen from phospholene oxides and phospholene sulfoxides, diaza and oxazaphospholanes, preferably under an inert atmosphere (nitrogen or Argon), and in particular in a polar solvent of preferably aprotic such as THF, glyme, diglyme, 1,4-dioxane, and DMF, at a temperature between room temperature and solvent reflux, preferably around 140 °C; to yield the carbodiimide diisocyanate compound (3): O=C=N-L1-(N=C=N-L1)nN=C=O (3), formula (3) in which Li and n are as defined previously. Halogenated benzoyl such as benzoyl chloride may be added to deactivate the catalyst.

[0705] To obtain “symmetrical” (poly)carbodiimides, during the second step of the preparation process, compound (3) reacts with 1 molar equivalent (1 eq) of nucleophilic reagent Ri-XrH, then 0.5 eq. of HEH reagent with Rb Xi and E as defined previously, to lead to the “symmetrical” compound according to the invention (4): [R1-X1-C(O)-NH-L1-(N=C=N-L1)n-NH-C(O)]2-E (4), formula (4) in which Rb Xb Lh n, and E are as defined previously. According to a variant to obtain compound (4) from (3) it is possible to first add 0.5 eq. of HEH reagent, then 1 eq. of Ri-XrH reagent.

[0706] To obtain “dissymmetric” (poly)carbodiimides, during the second step of the preparation process, compound (3) reacts with 1 molar equivalent (1 eq) of nucleophilic reagent Ri-XrH then 1 eq. of HEH reagent with Rb Xi and E as defined previously, to lead to compound (5): R1-X1-C(O)-NH-L1-(N=C=N-L1)n-NH-C(O)-EH (5), formula (5) in which Rb Xb Lb n, and E are as defined previously.

[0707] According to a variant to obtain compound (5) from (3) it is possible to first add 1 eq. of reagent Ri-XrH, then 0.5 eq. of reagent HEH.

[0708] In a third step, compound (5) reacts with 1 eq. of compound (6) R2-X2-C(O)-NH-Li-(N=C=N-Li)zN=C=O (6), said compound (6) is prepared beforehand from compound (3'): O=C=N-L1-(N=C=N-L1)ZN=C=O (3'),

[0709] formula (3') in which Li and z are as defined previously which reacts with 1 eq of nucleophilic reagent R2-X2-H with Lb R2, X2, and z as defined previously, to lead to the asymmetric compound (7): R1-X1-C(O)-NH-L1-(N=C=N-L1)n-NH-C(O)-EC(O)-NH-L1--(N=C=N-L1)z-NH-C(O) -X2-R2 (7),

[0710] Formula (7) in which Rb Xb Lb R2, X2, n, z and E are as defined previously.

[0711] It is also possible to react 1 molar equivalent of compound O=C=N-Li -(N=C=N-Li)zN=C=O (3') with 1 / w molar equivalent of HEH, then 1 eq. of nucleophilic reagent R2-X2-H to lead to compound (8): H-[EC(O)-NH-L1-(N=C=N-L1)z]w-NH-C(O)-X2-R2(8),

[0712] formula (8) in which Lb R2, X2, z and E are as defined previously, and w is an integer between 1 and 3, more preferably w = 1.

[0713] This last compound (8) can then react with 1 eq of compound (4'): Ri-Xi-C(O)-NH-Li-(N=C=N-Li)nN=C=O (4'), (said compound (4') can be synthesized by reaction of 0.5 eq. of nucleophilic reagent Ri-XrH with 1 equivalent of compound (3)), to yield the (poly)carbodiimide of the invention (9): R1-X1-C(O)-NH-L1-(N=C=N-L1)n-NH-C(O)-[EC(O)-NH-L1-(N=C=N-L1)z]w-NH C(O)-X2-R2 (9), formula (9) in which Lb Rb Xb R2, X2, n, z, w, and E are as defined previously.

[0714] The (poly)carbodiimide compounds as well as all reaction intermediates and reagents can be purified with conventional methods known to those skilled in the art, such as extraction with water and water-immiscible organic solvent, precipitation, centrifugation, filtration, and / or chromatography.

[0715] Example 1: Process for the synthesis of the compound (poly)carbodiimide

[0716] In a 500 mL three-necked flask equipped with a thermometer, a stirrer and a reflux tube, 50 g of dicyclohexylmethane 4,4'-diisocyanate and 0.5 g of 4,5-dihydro-3-methyl-l-phenyl-lH-phosphole 1-oxide were introduced with stirring.

[0717] The reaction medium was heated to 140°C under nitrogen for 4 hours, monitoring the reaction by infrared spectroscopy through the absorption of the isocyanate functions between 2200 and 2300 cm1, then cooled to 120°C.

[0718] A mixture of 5.3 g of polyethylene glycol monomethyl ether and 1.2 g of 1,4-butanediol is introduced into the reaction medium with stirring. The temperature of 120°C is maintained until the isocyanate functions have completely disappeared, monitored by infrared spectroscopy at 2200-2300 cm1, then cooled to room temperature.

[0719] After cooling to room temperature, the reaction medium is poured dropwise with vigorous stirring into a 500 mL glass beaker containing 85 g of distilled water to yield the desired product in the form of a translucent yellow liquid. Example 2

[0720] Compositions A and B1, B2, B3 and B4 as described below were prepared: the quantities are expressed in g of raw material as is / 100g, unless otherwise stated. In Table 1 below, “ma” means active ingredient.

[0721] [Tables 1] Composition A Polycarbodiimide (1) 24 Hydroxyethyl acrylate / sodium acryloyl-dimethyl taurate copolymer (2) 1 Amodimethicone (and) Trideceth-5 (and) Trideceth-10 (3) 5 Preservative(s) qs Water Qsp 100

[0722] 1. synthesized according to the synthesis process described in example 1 (at 40% active material in water), 2. sold by the company SEPPIC under the name SEPINOV EMT10, (3) sold by the company WACKER under the name BELSIL ADM LOG 1 (at 15% active ingredient)

[0723] [Tables2] Compositions B1 B2 Crotonic Acid / Vinyl C8-12 Isoalkyl Esters / VA / Bis-Vinyldimethicone Crosspolymer(4) 24 24 Pigment Green 7 1 - Red Iron Oxide (CI 77491) - 12 Alkaline Agent 4 4 Ethanol Qsp 100 Qsp 100

[0724] (4) sold by the company WACKER Chemie AG under the trade name Belsil® PI 101 (50% active ingredient in ethanol)

[0725] Two mixtures are then made. Composition A is mixed with each of compositions B1 and B2 at a mass ratio of 50 / 50 to obtain two compositions C1 and C2.

[0726] Then, composition D as described below was prepared: the quantities are expressed in g of raw material as is / 100g.

[0727] [Tables3] Compositions D Organopolysiloxane with carboxylic group (4) 2 Isododecane qsp 100

[0728] (4) Silform INX sold by Momentive Performance Materials

[0729] Each of the compositions C1 and C2 is applied to strands of 90% white natural dry hair, at a rate of 0.8g of composition per gram of strand. The strands of hair are then detangled and dried with a hairdryer, then combed.

[0730] Then, composition D is applied to some of the locks of hair previously treated with compositions C1 and C2, at a rate of 0.5g of composition per gram of lock.

[0731] The locks of hair are then left at room temperature and humidity for 24 hours.

[0732] The different processes are summarized in the following table:

[0733] ​​[Tables4] Method 1 (comparative) 2 (comparative) 3 (invention) 4 (invention) Application of composition Cl C2 Cl C2 Application of composition D No No Yes Yes

[0734] Thus, the locks of hair treated with compositions C1 then D, and C2 then D, are treated by methods 3 and 4 according to the invention.

[0735] The locks of hair treated with compositions C1 and C2 only are treated by comparative methods 1 and 2.

[0736] The locks of hair thus colored are then subjected to a test of several repeated shampoos in order to evaluate the tenacity (the persistence) of the coloring obtained from the shampoos, according to the shampoo protocol described below. Shampoo protocol:

[0737] The colored hair strands are combed, moistened under water at 35°C before being passed between the fingers 5 times for 5 seconds. The hair strands are then wrung out between two fingers.

[0738] A standard shampoo (Garnier Ultra Doux) is applied evenly to the colored strands at a rate of 0.4g of standard shampoo per gram of strands, gently kneading the strands of hair lengthwise (6 passes) for 15 seconds, from root to tip.

[0739] The strands of hair are then placed in a watch glass and left to rest for 1 minute.

[0740] Then, the hair strands are rinsed with water by passing the strand between the fingers (15 passes). The hair strands are then wrung out between two fingers before the next shampoo.

[0741] Once the tests of several shampoos are carried out, the strands of hair are combed and dried with a hairdryer. Results

[0742] The color persistence of the strands was evaluated in the CIE L*a*b* system, using a Minolta Spectrophotometer CM3600A colorimeter (illuminant D65, angle 10°, specular component included).

[0743] In this L*a*b* system, L* represents the color intensity, a* indicates the green / red color axis and b* the blue / yellow color axis.

[0744] The persistence of the color is evaluated by the color difference AE between the colored strands before shampooing, then after having undergone 5 shampoos according to the protocol described above. The lower the AE value, the more the color persists after shampooing.

[0745] The value of AE is calculated according to the following equation:

[0746] as -

[0747] In this equation, L*a*b* represent the values ​​measured after coloring the hair and after having undergone shampooing, and Lo*ao*bo* represent the values ​​measured after coloring the hair but before shampooing.

[0748] [Tables5] Processes Number of shampoos L* a* b* AE 1 (comparative) 0 46.9 -28.7 9.8 - 5 51.7 -17.1 9.0 12.6 2 (comparative) 0 35.1 28.3 21.6 - 5 41.0 21.5 17.0 10.1 3 (invention) 0 45.2 -23.8 9.9 - 5 50.9 -21.6 9.5 6.1 4 (invention) 0 34.1 28.0 21.7 - 5 38.6 26.2 20.0 5.2

[0749] The locks of hair treated with methods 3 and 4 according to the invention and washed with five shampoos exhibit lower AE values ​​than hair strands treated with comparative processes 1 and 2, respectively.

[0750] Thus, the colored coating obtained with the methods according to the invention has improved persistence to shampooing.

[0751] In addition, the locks of hair treated with methods 3 and 4 according to the invention have good hair conditioning properties, in particular easy detangling and a smooth feel.

Claims

Claims

1. A method of coloring hair comprising the following steps: a) applying to the hair at least one composition C comprising: - one or more (poly)carbodiimide compounds; - one or more silicone acrylic copolymer(s); and - at least one coloring agent chosen from pigments, direct dyes, and their mixtures; and b) the application to the hair of at least one composition D comprising at least one silicone compound comprising at least one carboxylic group.

2. Process according to claim 1, characterized in that the (poly)carbodiimide compound(s) is (are) chosen from the compounds of the following formula (I): O q ® To laugh &. —xr" —A——a4— H l 7« H in which: - Xi and X2 represent, independently, an oxygen atom O, a sulfur atom S or an NH group; - R 1 and R 2 independently represent a group chosen from a hydrocarbon radical, preferably alkyl, optionally interrupted by one or more heteroatoms, a group chosen from alkoxysilyl, hydroxysilyl, acetoxysilyl, vinylsilyl, acrylalkylsilyl, methacrylalkylsilyl, crotonylalkylsilyl, carboxyanhydroalkylsilyl, carboxyalkylsilyl, hydroxyalkylsilyl, aldehydoalkylsilyl, mercaptoalkylsilyl, norbornenylsilyl, acylpentadienylalkylsilyl, maleimidoalkylsilyl, sulphonylalkylsilyl, (meth)acrylalkyl, crotonylalkyl, alkylepoxide such as propylepoxide or butylepoxide, and azacyclopropane, and a hydrocarbon radical, preferably alkyl, optionally interrupted by one or more heteroatom(s) and by one or more groups chosen from the alkoxysilyl, hydroxysilyl, acetoxysilyl, vinylsilyl, acrylalkylsilyl, methacrylalkylsilyl, crotonylalkylsilyl, carboxyanhydridoalkylsilyl, carboxyalkylsilyl groups,hydroxyalkylsilyl, aldehydoalkylsilyl, mercaptoalkylsilyl, norbornenylsilyl, acylpentadienylalkylsilyl, maleimidoalkylsilyl, sulphonylalkylsilyl, (meth)acrylalkyl, crotonylalkyl, alkylepoxide such, that propylepoxide or butylepoxide, and azacyclopropane; - n denotes an integer ranging from 1 to 1000; and - A is a monomer chosen from the compounds below:

3. Process according to claim 1, characterized in that the (poly)carbodiimide compound(s) is (are) chosen from the compounds of formula (II) below: (II), in which - Xi and X2 represent, independently, an oxygen atom O, a sulfur atom S or an NH group; - R1 and R2 independently represent a hydrocarbon radical optionally interrupted by one or more heteroatoms; - n and z denote an integer ranging from 1 to 20, with n+z > 2 and w denotes an integer ranging from 1 to 3; - Li independently represents a divalent C1-C18 aliphatic hydrocarbon radical, a C3-C15 cycloalkylene radical, a C3-C12 heterocycloalkylene group, or a C6-C14 arylene group, and mixtures thereof; - E independently represents a group chosen from: -O-R3-O-; -S-R4-S-; -R5-N(R6)-R4-N(R6)-R5-, in which R3 and R4 independently represent a divalent hydrocarbon radical optionally interrupted by one or more heteroatoms; - R5 independently represents a covalent bond or a divalent saturated hydrocarbon radical, optionally interrupted by one or more heteroatom(s);- R6 independently represents a hydrogen atom, or a hydrocarbon radical optionally interrupted by one or more heteroatom(s).;

4. Process according to claim 3, characterized in that the (poly)carbodiimide compound(s) is (are) chosen from the compounds of formula (II) in which: - X1 and X2 independently represent an oxygen atom; - R1 and R2 are independently chosen from dialkylaminoalcohols, hydroxycarboxylic acid alkyl esters and (poly)alkylene glycol monoalkyl ethers, in which a hydroxy group has been removed, and mixtures thereof; - n and z denote an integer ranging from 1 to 20, with n+z > 2 and w is equal to 1; - L1 is chosen from a divalent C1-C18 aliphatic hydrocarbon radical, a C3-C15 cycloalkylene radical, a C3-C12 heterocycloalkylene group, or a C6-C14 arylene group, and mixtures thereof; - E independently represents a group chosen from: - -O-R3-O-; -S-R4-S-; -R5-N(R6)-R4-N(R6)-R5-;in which R3 and R4 are independently chosen from a C6-C14 arylene radical, a C3-C12 cycloalkylene radical, a linear or branched C1-C18 alkylene radical, optionally interrupted by a; or more heteroatom(s), and mixtures thereof; - when R5 is not a covalent bond, R5 is chosen from a C6-Ci4 arylene radical, a C3-Ci2 cycloalkylene radical, a linear or branched CrCi8 alkylene radical, optionally interrupted by one or more heteroatom(s), and mixtures thereof; and - R6 is chosen from a C6-Ci4 arylene radical, a C3-C12 cycloalkylene radical, a linear or branched CrCi8 alkylene radical, optionally interrupted by one or more heteroatom(s), and mixtures thereof.

5. Process according to claim 3 or 4, characterized in that the (poly)carbodiimide compound(s) is (are) chosen from the compounds of formula (II) in which: - Xi and X2 independently represent an oxygen atom; - Ri and R2, are independently monoalkyl ethers of (poly)alkylene glycol, in which a hydroxy group has been removed; - n and z denote an integer ranging from 1 to 20, with n+z > 2 and w is equal to 1; - Li is a C3-C15 cycloalkylene radical; - E independently represents a group chosen from: -O-R3-O-; -S-R4-S-; -R5-N(R6)-R4-N(R6)-R5-; in which R3 and R4 are independently chosen from a C6-C14 arylene radical, a C3-C12 cycloalkylene radical, a linear or branched C1C18 alkylene radical, optionally interrupted by one or more heteroatom(s), and mixtures thereof;- when R5 is not a covalent bond, R5 is chosen from a C6-Ci4 arylene radical, a C3-Ci2 cycloalkylene radical, a linear or branched CrCi8 alkylene radical, optionally interrupted by one or more heteroatoms, and mixtures thereof; and - R6 is chosen from a C6-Ci4 arylene radical, a C3-Ci2 cycloalkylene radical, a linear or branched CrCi8 alkylene radical, optionally interrupted by one or more heteroatoms, and mixtures thereof.;

6. Process according to any one of claims 3 to 5, characterized in that the (poly)carbodiimide compound(s) is (are) chosen from the compounds of formula (II) in which: - X1 and X2 independently represent an oxygen atom; - R1 and R2, independently represent the compound of the following formula (VI): R13-[O-CH2-C(H)(R14)]q- (VI), in which Rn represents a C1-C4 alkyl group or a phenyl, preferably a C1-C4 alkyl group, more preferably a methyl, RM represents a hydrogen atom or a C1-C4 alkyl group, preferably a hydrogen atom and q denotes an integer ranging from 4 to 30; - n and z denote an integer ranging from 2 to 20, with n+z ranging from 4 to 10 and w equal to 1; - Li is a C3-C15 cycloalkylene radical such as cyclopentylene, cycloheptylene, cyclohexylene and 4,4-dicyclohexylene methane, and - E represents a group -O-R3-O- in which R3 is chosen from a C6-Ci4 arylene radical, a C3-Ci2 cycloalkylene radical, a linear or branched CrCi8 alkylene radical, optionally interrupted by one or more heteroatom(s), and mixtures thereof.

7. Process according to any one of claims 3 to 6, characterized in that the (poly)carbodiimide compound(s) is (are) chosen from the compounds of formula (II) in which: - Xi and X2 independently represent an oxygen atom; - R1 and R2, independently represent the compound of formula (VI) following: R13-[O-CH2-C(H)(R14)]q- (VI), in which R13 represents a C1-C4 alkyl group or a phenyl, preferably a C1-C4 alkyl group, more preferably a methyl, R14 represents a hydrogen atom or a C1-C4 alkyl group, preferably a hydrogen atom and q denotes an integer ranging from 4 to 30; - n and z denote an integer ranging from 2 to 20, with n+z ranging from 4 to 10, and w is equal to 1; - Li is a C3-Ci5 cycloalkylene radical such as cyclopentylene, cycloheptylene, cyclohexylene and 4,4-dicyclohexylene methane, preferably 4,4-dicyclohexylene methane; and - E represents a group - -O-R3-O- in which R3 represents a linear or branched CrCi8 alkylene radical such as methylene, propylene, butylene, ethylene, optionally interrupted by one or more heteroatom(s).

8. Process according to any one of claims 3 to 7, characterized in that the (poly)carbodiimide compound(s) is (are) chosen from the compounds of formula (XII) below: (XII), in which Li is 4,4-dicyclohexylene methane, n and z denote an integer ranging from 2 to 20, with n+z ranging from 4 to 10, E represents a group - -O-R3-O- in which R3 represents a linear or branched C1-C18 alkylene radical such as methylene, propylene, butylene ethylene, optionally interrupted by one or more heteroatom(s), and r and s denote an integer ranging from 4 to 30.

9. Process according to any one of the preceding claims, characterized in that the total quantity of the (poly)carbodiimide compound(s) ranges from 0.01 to 20% by weight, preferably from 0.1 to 15% by weight, more preferably from 0.2 to 10% by weight, even more preferably from 0.5 to 8% by weight, better still from 1 to 6% by weight relative to the total weight of composition C.

10. Method according to any one of the preceding claims, characterized in that the silicone acrylic copolymer(s) comprise: - at least one acrylic or methacrylic or crotonic unit; - at least one polydimethylsiloxane unit.

11. Method according to any one of the preceding claims, characterized in that the silicone acrylic copolymer(s) comprise: - at least one crotonic unit and at least one unit chosen from a alkyl crotonate unit, the alkyl radical being a linear or branched, saturated radical containing from 1 to 20 carbon atoms; a vinyl acetate unit; a vinyl alkyl ester unit, the alkyl radical being a linear or branched, saturated radical containing from 2 to 20 carbon atoms; and mixtures thereof; and - at least one polydimethylsiloxane unit.

12. Process according to any one of the preceding claims, characterized in that the silicone acrylic copolymer(s) comprise: - at least one crotonic unit, at least one vinyl acetate unit and at least one vinyl alkyl ester unit, the alkyl radical being a linear or branched, saturated radical containing from 2 to 18 carbon atoms, preferably from 6 to 16 carbon atoms; and - at least one polydimethylsiloxane unit comprising at least one polymerizable radical group comprising a vinyl group.

13. Process according to any one of the preceding claims, characterized in that the total quantity of silicone acrylic copolymer(s) ranges from 0.1 to 30% by weight, preferably from 0.5 to 20% by weight, more preferably from 1 to 15% by weight, better still from 2 to 10% by weight relative to the total weight of composition C.

14. Method according to any one of the preceding claims, characterized in that the total quantity of coloring agent(s) ranges from 0.001 to 20% by weight, preferably from 0.005 to 15% by weight relative to the total weight of composition C, preferably the coloring agent(s) are chosen from pigments.

15. Process according to any one of the preceding claims, characterized in that the total quantity of pigments ranges from 0.05 to 20% by weight, preferably from 0.1 to 15% by weight, better still from 0.5 to 10% by weight relative to the total weight of composition C.

16. Process according to any one of the preceding claims, characterized in that the silicone compound(s) comprising at least one carboxylic group is (are) chosen from organosiloxanes of formula (XXVIII) below: RI ^OOC - - R4 If -i (XXVIII), Here R4—COOM

17.

18. In which: - RI independently represents a linear or branched alkyl group having from 1 to 20 carbon atoms, preferably from 1 to 10 carbon atoms, even better from 1 to 6 carbon atoms; preferably methyl; - R4 independently represents a linear or branched alkylene group, having from 1 to 20 carbon atoms, preferably from 4 to 16 carbon atoms, optionally interrupted by at least one heteroatom chosen from the sulfur atom, the nitrogen atom, the oxygen atom and their mixtures; or a divalent group Ra-(ORb)x- with Ra representing a linear or branched alkylene group, having from 1 to 4 carbon atoms, Rb representing an alkylene group having from 1 to 4 carbon atoms, and x being an integer ranging from 1 to 200; - M independently represents a hydrogen atom, an alkali or alkaline earth metal or a quaternary ammonium NR'3, with R', identical or different, representing H or an alkyl having from 1 to 4 carbon atoms; - n denotes an integer ranging from 1 to 1000. Process according to any one of the preceding claims, characterized in that the total quantity of silicone compound(s) comprising at least one carboxylic group ranges from 0.01 to 20% by weight, preferably from 0.1 to 15% by weight, more preferably from 0.5 to 10% by weight, better still from 1 to 5% by weight relative to the total weight of composition D. Method according to any one of the preceding claims, characterized in that it consists of mixing extemporaneously at the time of use at least two compositions A and B to obtain a composition C and applying composition C to the hair, with: - composition A comprising one or more (poly)carbodiimide compound(s) as defined in any one of claims 1 to 8; - composition B comprising one or more silicone acrylic copolymers as defined in any one of claims 1 and 10 to 12, composition A and / or composition B comprising at least one coloring agent chosen from pigments, direct dyes, and mixtures thereof; and - the application to the hair of at least one composition D comprising at least one silicone compound comprising at least one carboxylic group as defined in any one of claims 1 and 16 to 17, said composition D being applied to the hair before and / or after the application of composition C to the hair.

19. Device for coloring hair comprising several compartments containing: - in a first compartment, a composition A comprising: a) one or more (poly)carbodiimide compound(s) as defined in any one of claims 1 to 8; - in a second compartment, a composition B comprising: b) one or more silicone acrylic copolymers as defined in any one of claims 1 and 10 to 12; composition A and / or composition B comprising: (c) at least one coloring agent chosen from pigments, direct dyes, and mixtures thereof, and - in a second compartment, a composition D comprising at least one silicone compound comprising at least one carboxylic group as defined in any one of claims 1 and 16 to 17.