A hair coloring process comprising the application of a (poly)carbodiimide compound, a silicone acrylic copolymer, a specific alkaline agent, and a coloring agent.

Abstract

The present invention relates to a hair coloring process comprising the application to the hair of at least one composition C comprising: - at least one (poly)carbodiimide compound; - at least one silicone acrylic copolymer; - at least one alkaline agent having a saturated vapor pressure at 20°C greater than or equal to 2500 Pa; and - at least one coloring agent selected from pigments, direct dyes, and mixtures thereof.

Description

Title of the invention: A hair coloring process comprising the application of a (poly)carbodiimide compound, a silicone acrylic copolymer, a specific alkaline agent, and a coloring agent.

[0001] The present invention relates to a hair coloring process comprising the application to the hair of a composition C comprising a (poly)carbodiimide compound, a silicone acrylic copolymer, an alkali agent having a saturated vapor pressure at 20°C greater than or equal to 2500 Pa, and a coloring agent. Technical field

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

[0003] There are essentially three types of hair coloring processes:

[0004] a) so-called permanent coloring which has the function of bringing about a significant change in the natural color and which uses oxidation dyes which penetrate 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 implement the oxidative condensation process and resists 4 or 5 shampoos; consists of dyeing the keratin fibers with dyeing compositions containing direct dyes;

[0006] c) Temporary hair coloring that results in a change to the natural hair color that lasts from one shampoo to the next and serves to enhance or correct a previously achieved shade. It can also be considered a "makeup" process.

[0007] Another coloring method involves using pigments. Indeed, applying pigment to the surface of keratin fibers generally produces visible colors on dark hair, since the surface pigment masks the fiber's natural color. However, the colors obtained using this method have the disadvantage of being poorly resistant to shampoos and external agents such as sebum, perspiration, brushing, and / or friction.

[0008] There therefore remains a need for 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 aggressions that hair can undergo processes such as brushing and / or rubbing without degrading the cosmetic properties of the hair.

[0009] 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 that is resistant to shampoos and to the various aggressions that hair can undergo such as brushing and / or rubbing without degrading the cosmetic properties of the hair. Description of the invention

[0010] The present invention therefore relates to a hair coloring process comprising the application to the hair of at least one composition C comprising:

[0011] - at least one (poly)carbodiimide compound;

[0012] - at least one silicone acrylic copolymer;

[0013] - at least one alkaline agent having a saturation vapor pressure at 20°C greater or equal to 2500 Pa; and

[0014] - at least one coloring agent selected from pigments, direct colorants, and their mixtures.

[0015] Thanks to the hair coloring process according to the invention, colored coatings are applied to the hair, resulting in a visible color that is permanent after shampooing on all hair types while preserving the hair's physical qualities. Such a coating can be resistant to external aggressions to which hair may be subjected, such as blow-drying and perspiration. In particular, it allows for a homogeneous deposit.

[0016] By "residual shampoo colour" in the context of the present invention, the colour obtained persists after one shampoo, preferably after 3 shampoos, more preferably after 5 shampoos.

[0017] The expression "at least one" means one or more.

[0018] Unless otherwise indicated, the bounds of a range of values ​​are included in that range, in particular in the expressions "between" and "ranging from ... to ...".

[0019] The invention is not limited to the illustrated examples. The features of the different examples can, in particular, be combined within non-illustrated variants.

[0020] For the purposes of the present invention and, unless otherwise indicated,

[0021] - an "alkyl" radical designates a saturated linear or branched radical containing by example of 1 to 20 carbon atoms;

[0022] - an "aminoalkyl" radical means an alkyl radical as defined above, said alkyl radical comprising an NH2 group;

[0023] - a "hydroxyalkyl" radical means an alkyl radical as defined above, said alkyl radical comprising an OH group;

[0024] - an "alkylene" radical designates a divalent saturated hydrocarbon group at C2-C4, linear or branched, such as methylene, ethylene, or propylene;

[0025] - a "cycloalkyl" or "alicycloalkyl" radical designates a hydrocarbon group saturated cyclic mono- or polycyclic, 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 a 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 isobotyl group.

[0026] - a "cycloalkylene" radical designates a divalent cycloalkyl group with "cy cloalkyl” as defined above, preferably in C3-Ci2;

[0027] - an "aryl" radical is an unsaturated and aromatic hydrocarbon cyclic 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 ring of 6 carbon atoms such as phenyl, naphthyl, anthryl, phen-nanthryl 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;

[0028] - an "arylene" radical is a divalent aryl radical with "aryl" as defined above Previously, preferably arylene represents phenylene;

[0029] - a "heterocyclic" radical designates a mono or poly hydrocarbon radical cyclic, saturated or unsaturated, non-aromatic or aromatic, comprising one or more heteroatoms preferably of 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;

[0030] - a "heterocycloalkylene" radical is a divalent heterocyclic group with "heterocyclic" as defined above;

[0031] - an "aryloxy" radical designates an aryl-oxy radical with "aryl" as defined above previously;

[0032] - an "alkoxy" radical designates an alkyl-oxy radical with "alkyl" as defined previously;

[0033] - an "acyloxy" radical designates an ester radical RC(O)-O- with R an alkyl group as defined previously;

[0034] - a "reactive" group is a group capable of forming a bond covalent with another group, identical or different, by chemical reaction.

[0035] Unless otherwise indicated, when compounds are mentioned in this application, this also includes their optical isomers, their geometric isomers, their tautomers, their salts, alone or in mixtures.

[0036] By "capillary keratin fibers" is meant hair. In other words, the expressions "capillary keratin fibers" and "hair" are equivalent in the remainder of the description.

[0037] For the purposes of the present invention, "hair" means the hair on the head. This term does not include body hair, eyebrows, or eyelashes. Polycarbodiimide compound

[0038] Composition C used in the process according to the invention comprises at least one (poly)carbodiimide compound.

[0039] The composition may comprise at least two distinct (poly)carbodiimide compounds, present in mixture in the composition.

[0040] 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 not exceeding 200, preferably 150, more preferably 100.

[0041] The term “carbodiimide group” means a linear divalent triatomic fraction of general formula - (N=C=N) -.

[0042] The (poly)carbodiimide compound(s) according to the invention may optionally comprise in their structure one or more reactive groups other than carbodiimide groups, selected from alkoxysilyl, hydroxysilyl, acetoxysilyl, vinylsilyl, acrylalkylsilyl, methacrylalkylsilyl, crotonylalkylsilyl, carboxyanhydridoalkylsilyl, carboxyalkylsilyl, hydroxyalkylsilyl, aldehydoal-kylsilyl, mercaptoalkylsilyl, norbomenylsilyl, acylpentadienylalkylsilyl, maleimi-doalkylsilyl, sulphonylalkylsilyl, (meth)acrylalkyl, crotonylalkyl, alkyl epoxide such as propyl epoxide or butyl epoxide and azacyclopropane.

[0043] 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 selected from the following groups: alkoxysilyl, hydroxysilyl, acetoxysilyl, vinylsilyl, acrylalkylsilyl, methacrylalkylsilyl, crotonylalkylsilyl, carboxyanhydridoalkylsilyl, carboxyalkylsilyl, hydroxyalkylsilyl, aldehydoalkylsilyl, mercaptoalkylsilyl, norbomenylsilyl, acylpentadienylalkylsilyl, maleimidoalkylsilyl, sulfonylmylsilyl, (meth)acrylalkyl, crotonylalkyl, alkyl epoxide such as propyl epoxide or butyl epoxide and azacyclopropane.

[0044] According to a particular embodiment, the (poly)carbodiimide compound is chosen from the compounds of the following formula (I): O | —A——Al-NX H l H

[0045] in which:

[0046] - Xi and X2 represent, independently, an oxygen atom O, a sulfur atom S or an NH group;

[0047] - Ri and R2 independently represent a grouping chosen from a radical hy a hydrocarbon radical, preferably alkyl, optionally interrupted by one or more heteroatoms, a group selected from the following groups: alkoxysilyl, hydroxysilyl, acetoxysilyl, vinylsilyl, acrylalkylsilyl, methacrylalkylsilyl, crotonylalkylsilyl, carboxyanhydridoalkylsilyl, carboxyalkylsilyl, hydroxyalkylsilyl, aldehyde-kylsilyl, mercaptoalkylsilyl, norbomenylsilyl, acylpentadienylalkylsilyl, maleimi-doalkylsilyl, sulfonylmylsilyl, (meth)acrylalkyl, crotonylalkyl, alkyl epoxides such as propyl epoxide or butyl epoxide, and azacyclopropane, and a hydrocarbon radical, preferably alkyl, optionally interrupted by one or more heteroatoms and by one or more groups selected from the following groups alkoxysilyl, hydroxysilyl, acetoxysilyl, vinylsilyl, acrylalkylsilyl, methacrylalkylsilyl, crotonylalkylsilyl, carboxyanhydridoalkylsilyl, carboxyalkylsilyl, hydroxyalkylsilyl, aldehydoalkylsilyl, mercaptoalkylsilyl, norbomenylsilyl,acylpentadienylalkylsilyl, maleimidoalkylsilyl, sulfonylmylalkylsilyl, (meth)acrylalkyl, crotonylalkyl, alkyl epoxides such as propyl epoxide or butyl epoxide, and azacyclopropane; ,

[0048] - n denotes an integer from 1 to 1000; and

[0049] - A is a monomer selected from the compounds below:

[0050] According to another embodiment, the (poly)carbodiimide compound is chosen from the compounds with the following formula (!): (D

[0051] in which:

[0052] - Xi and X2 represent, independently, an oxygen atom O, a sulfur atom S or an NH group;

[0053] - Yiet Y2 represent, independently, a divalent organic radical chosen from a saturated aliphatic group in C36 at Ci or an aromatic or alkylaromatic group in C6 to C24, the aliphatic or aromatic group optionally comprising one or more non-pending heteroatoms, such as nitrogen atom, oxygen atom, sulfur atom, or combinations thereof;

[0054] - Zi and Z2 represent, independently, a reactive terminal group or a group inert terminal;

[0055] - as an inert terminal group, Zi and Z2 can represent, independently, a saturated aliphatic group, linear or branched or cyclic, in the C1 to C50 range, or an aromatic group in the C6 to C8 range, said aliphatic and aromatic groups optionally comprising from 1 to 10 heteroatoms selected from nitrogen, oxygen, sulfur and their combinations, and the aliphatic or aromatic group may be partially or totally fluorinated; in this variant, Zi and Z2 comprise a CG linking group connecting Zi to Yi and Z2 to Y2, the CG group being a single covalent bond, a saturated C-C bond, an unsaturated covalent C-C 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;

[0056] - as a reactive terminal group, Zi and Z2 can be chosen from the alkoxysilyl, hydroxysilyl, acetoxysilyl, vinylsilyl, acrylalkylsilyl, methacrylalkylsilyl, crotonylalkylsilyl, carboxyanhydridoalkylsilyl, carboxyal-kylsilyl, hydroxyalkylsilyl, aldehydoalkylsilyl, mercaptoalkylsilyl, norbomenylsilyl, acylpentadienylalkylsilyl, maleimidoalkylsilyl, sulfonylalkylsilyl, (meth)acrylalkyl, crotonylalkyl, alkyl epoxide groups such as propyl epoxide or butyl epoxide and azacyclopropane;

[0057] - Q represents an organopolymer or an organo-oligomer comprising re-units competitive of saturated aliphatic groups, linear or branched or cyclic, or of aromatic groups or alkylaromatic groups, coupled by repeating bonds carbonate, ester, ether, amide, urethane or urea or their combinations;

[0058] - A represents a divalent aliphatic, aromatic, alkylaromatic or linear, saturated, branched or cyclic having from 2 to 30 carbon atoms, optionally including one or more non-pending heteroatoms, such as nitrogen atom, oxygen atom, sulfur atom, or combinations thereof, in the aliphatic chain or aromatic chain;

[0059] - r denotes an integer equal to 0 or 1;

[0060] - m denotes an integer from 0 to 1000, preferably equal to 0 or 1;

[0061] - m' designates an integer from 0 to 1000, preferably equal to 0 or 1;

[0062] - n denotes an integer from 0 to 1000, preferably equal to 0 or 1, with m+ (m'*n ) > 2.

[0063] Preferably, Zi and Z2 represent, independently, a reactive terminal group, more preferably, Zi and Z2 represent, independently, a group selected from the following groups: alkoxysilyl, hydroxysilyl, acetoxysilyl, vinylsilyl, acrylalkylsilyl, methacrylalkylsilyl, crotonylalkylsilyl, carboxyanhydridoalkylsilyl, car-boxyalkylsilyl, hydroxyalkylsilyl, aldehydoalkylsilyl, mercaptoalkylsilyl, norbor-nénylsilyl, acylpentadienylalkylsilyl, maleimidoalkylsilyl, sulfonylalkylsilyl, (meth)acrylalkyl, crotonylalkyl, alkyl epoxide such as propyl epoxide or butyl epoxide, and azacyclopropane.

[0064] Such (poly)carbodiimide compounds are marketed for example by the company Stahl BV, under the name Permutex XR, or under the name RelcaLinklO., 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.

[0065] Preferably, the (poly)carbodiimide compound(s) is / are chosen from the compounds of the following formula (II): o A <">• A ......xA < ••

[0066] in which

[0067] - Xi and X2 represent, independently, an oxygen atom O, a sulfur atom S or an NH group;

[0068] - Ri and R2 independently represent a hydrocarbon radical possibly in interrupted by one or more heteroatom(s);

[0069] - n and z denote an integer from 1 to 20, with n+z > 2 and w denotes a integer ranging from 1 to 3;

[0070] - Li independently represents a divalent aliphatic hydrocarbon radical in Ci - Cig, a C3-Ci5 cycloalkylene radical, a C3-Ci2 heterocycloalkylene group, or a C6-Ci4 arylene group, and mixtures thereof;

[0071] - E independently represents a grouping chosen from:

[0072] - -O-R3-O-; -S-R4-S-; -R5-N(R6)-R4-N(R6)-R5-,

[0073] in which R3 and R4 independently represent a divalent hydrocarbon radical possibly interrupted by one or more heteroatom(s);

[0074] - R5 independently represents a covalent bond or a hydrocarbon radical saturated divalent, possibly interrupted by one or more heteroatom(s);

[0075] - R6 independently represents a hydrogen atom, or a hydrocarbon radical possibly interrupted by one or more heteroatom(s).

[0076] 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.

[0077] The hydrocarbon radical may comprise one or more cyclic groups.

[0078] The hydrocarbon radical can 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 can be incorporated in the form of a salt.

[0079] The term "heteroatom(s)" means an oxygen atom O, a sulfur atom S or a nitrogen atom N, 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 among the oxygen atoms O, sulfur atoms S or nitrogen atoms N.

[0080] Preferably, Xi and X2 independently represent an oxygen atom.

[0081] Preferably, Ri and R2 are chosen independently from dialkylaminoalcohols, alkyl esters of hydroxycarboxylic acid and monoalkyl ethers of (poly)alkylene glycol, in which a hydroxy group has been removed, and mixtures thereof.

[0082] According to a preferred embodiment, Ri and R2 are chosen independently from the following groupings (i) to (iv):

[0083] (i) the compound of the following formula (III):

[0084] R7-OC(O)-C(R8)(H)-(III),

[0085] wherein R7 represents a Ci-C3 alkyl group, and R8 represents a hydrogen atom or a Ci-C3 alkyl group, preferably R7 is a methyl and R8 is a hydrogen atom or a methyl.

[0086] (ii) the compound of the following formula (IV):

[0087] R9-[0-CH2-C(H)(Rio)]p-(IV),

[0088] wherein R9 represents a Ci-C4 alkyl group, Rio represents a hydrogen atom or a Ci-C4 alkyl group and p denotes an integer from 1 to 3; preferably, R9 is a methyl, ethyl or butyl and R10 is a hydrogen atom or a methyl and p is equal to 1.

[0089] (iii) the compound of the following formula (V):

[0090] (Rh)2N-CH2-C(H)(Ri2)- (V),

[0091] wherein Ru represents a Ci-C4 alkyl group and R[2 represents a hydrogen atom or a Ci-C4 alkyl group; preferably Ru is a methyl, ethyl or butyl and R[2 is a hydrogen atom or a methyl.

[0092] (iv) the compound of the following formula (VI):

[0093] R13-[O-CH2-C(H)(R14)]q- (VI),

[0094] wherein Rn represents a Ci-C4 alkyl group or a phenyl group, RM represents a hydrogen atom or a CrC4 alkyl group and q denotes an integer from 4 to 30; preferably Rn is a methyl, ethyl or butyl group and Ru is a hydrogen atom or a methyl group.

[0095] Preferably, Ri and R2 independently represent a compound of formula (VI) in which Rn represents a CrC4 alkyl group or a phenyl, preferably a CrC4 alkyl group, more preferably a methyl, R14 represents a hydrogen atom or a CrC4 alkyl group, preferably a hydrogen atom and q denotes an integer from 4 to 30.

[0096] According to an alternative embodiment, Ri and R2 are different and one of the radicals Ri or R2 represents a compound of formula (IV) as described above and the other radical Ri or R2 represents a compound of formula (VI) as described above.

[0097] Preferably, in formula (IV), R9 is a methyl, ethyl or butyl and Rio is a hydrogen atom or a methyl and p is equal to 1.

[0098] Preferably, in formula (VI), Rb is a methyl, ethyl or butyl and R[4 is a hydrogen atom or a methyl and q denotes an integer from 4 to 30.

[0099] According to another alternative embodiment, Ri and R2 are identical and represent a compound of formula (VI) in which Rn represents a CrC4 alkyl group or a phenyl, preferably a Ci-C4 alkyl group, more preferably a methyl, R[4 represents a hydrogen atom or a CrC4 alkyl group, preferably a hydrogen atom and q denotes an integer from 4 to 30.

[0100] Preferably, n denotes an integer from 1 to 20, more preferably from 2 to 20.

[0101] Preferably, z denotes an integer from 1 to 20, more preferably from 2 to 20.

[0102] Preferably, w is equal to 1.

[0103] Preferably, w is equal to 1, n+z denotes an integer from 4 to 10.

[0104] Preferably, Li is chosen from a divalent aliphatic hydrocarbon radical in Ci -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.

[0105] For example, Li can be selected from a radical derived from tolylene diisocyanate, hexamethylene diisocyanate, xylylene diisocyanate, 2,2,4-trimethylhexamethylene diisocyanate, 1,12-diisocyanate dodecane, norbornane diisocyanate, 2,4-bis-(8-isocyanateoctyl)-1,3-dioctylcyclobutane, 4,4'-dicylclohexylmethane diisocyanate, tetramethylxylylene diisocyanate,

[0106] 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-Ci5 cycloalkylene radical, or a C6-Ci4 arylene group and mixtures thereof, such as the compounds of the following formula (VII):

[0107] Preferably, L1 is the 4,4-dicyclohexylene methane corresponding to the following formula (VIII): (VIII).

[0108] According to another embodiment, when L1 is an arylene group in C6-Ci4, Li is not the m-tetramethylxylylene radical represented by the following formula (IX): (IX).

[0109] As stated previously, E independently represents a grouping chosen from:

[0110] - -O-R3-O-; -S-R4-S-; -R5-N(R6)-R4-N(R6)-R5-;

[0111] wherein R3 and R4 independently represent a divalent hydrocarbon radical possibly interrupted by one or more heteroatom(s);

[0112] - R5 independently represents a covalent bond or a hydrocarbon radical saturated divalent, possibly interrupted by one or more heteroatom(s); and

[0113] - R6 independently represents a hydrogen atom, or a hydrocarbon radical possibly interrupted by one or more heteroatom(s).

[0114] Preferably, R3 and R4 are chosen independently from a C6-CM arylene radical such as phenylene, a C3-Ci2 cycloalkylene radical such as cyclopropylene and cyclobutylene, a linear or CrCi8 branched alkylene radical such as methylene and ethylene, optionally interrupted by one or more heteroatom(s) and mixtures thereof.

[0115] More preferably, R3 and R4 are chosen independently from a linear or CrCi8 branched alkylene radical such as methylene, butylene, propylene, ethylene, optionally interrupted by one or more heteroatom(s).

[0116] Preferably, when R5 is not a covalent bond, R5 is selected from a C6-Ci4 arylene radical such as phenylene, a C3-Ci2 cycloalkylene radical such as cyclopropylene and cyclobutylene, a linear or branched Ci-Ci8 alkylene radical such as methylene and ethylene, optionally interrupted by one or more heteroatom(s), and mixtures thereof.

[0117] Preferably, R6 is selected from a C6-Ci4 arylene radical such as phenylene, a C3-C[2] cycloalkylene radical such as cyclopropylene and cyclobutylene, a linear or CrCi8 branched alkylene radical such as methylene and ethylene, optionally interrupted by one or more heteroatom(s), and mixtures thereof.

[0118] Preferably, E represents an -O-R3-O- group in which R3 is selected 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.

[0119] More preferably, E represents a -O-R3-O- group in which R3 represents a linear or CrCi8 branched alkylene radical such as methylene, butylene, propylene, ethylene, optionally interrupted by one or more heteroatom(s).

[0120] According to a particular embodiment, the (poly)carbodiimide compound is a copolymer derived from alpha-methylstyryl-isocyanates of the following formula (X): (X),

[0121]

[0122]

[0123]

[0124]

[0125]

[0126]

[0127]

[0128]

[0129]

[0130]

[0131] in which 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, n denotes an integer ranging from 2 to 100. In this embodiment, the term "alkyl group" is as defined previously. In this embodiment, the term "cycloalkyl group" is as defined previously. In this embodiment, n can denote an integer from 2 to 50, preferably from 3 to 30, more preferably from 5 to 10. According to another particular embodiment, the (poly)carbodiimide compound is a compound of the following formula (XI): (XI), Z in which 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. The "alkyl group", the "cycloalkyl group" and the "aryl group" are as defined previously. According to a preferred embodiment, the (poly)carbodiimide compound is chosen from compounds of formula (I) or formula (II) in which: - Xi and X2 independently represent an oxygen atom; - Ri and R2 are chosen independently from dialkylaminoalcohols, alkyl esters of hydroxycarboxylic acid and monoalkyl ethers of (poly)alkylene glycol, in which a hydroxy group has been removed, and mixtures thereof, preferably from monoalkyl ethers of (poly)alkylene glycol, in which a hydroxy group has been removed, more preferably, the compound of formula (VI) as described previously in which Rn represents a group alkyl group in C1-C4 or a phenyl group, preferably an alkyl group in C1-C4, more preferably a methyl group, RM represents a hydrogen atom or an alkyl group in C1-C4, preferably a hydrogen atom, and q denotes an integer from 4 to 30

[0132] - n and z, when present, denote an integer from 1 to 20, with n+z > 2 and w is equal to 1;

[0133] - Li, when present, is chosen from an aliphatic hydrocarbon radical divalent in CrCi8, a cycloalkylene radical in C3-Ci5, a heterocycloalkylene group in C3-Ci2, or an arylene group in C6-Ci4, and mixtures thereof, preferably a cycloalkylene radical in C3-Ci5;

[0134] - A, when present, is chosen from an aliphatic hydrocarbon radical divalent in CrCi8, a cycloalkylene radical in C3-Ci5, a heterocycloalkylene group in C3-Ci2, or an arylene group in C6-Ci4, and mixtures thereof, preferably a cycloalkylene radical in C3-Ci5;

[0135] - E, when present, independently represents a grouping chosen from:

[0136] - -O-R3-O-; -S-R4-S-; -R5-N(R6)-R4-N(R6)-R5-;

[0137] wherein R3 and R4 are independently selected from a C6-Ci4 arylene radical, a C3-Ci2 cycloalkylene radical, a linear or branched Ci-Ci8 alkylene radical, optionally interrupted by one or more heteroatom(s), and mixtures thereof;

[0138] - when R5 is not a covalent bond, R5, when present, is chosen from an arylene radical in the C6-Ci4 range, a cycloalkylene radical in the C3-Ci2 range, a linear or branched alkylene radical in the CrCi8 range, possibly interrupted by one or more heteroatoms, and mixtures thereof; and

[0139] - R6, when present, is chosen from a C6-Ci4 arylene radical, a cy radical C3-Ci2 cloalkylene, a linear or CrCi8 branched alkylene radical, possibly interrupted by one or more heteroatom(s), and mixtures thereof.

[0140] Preferably, the (poly)carbodiimide compound is chosen from compounds of formula (II) in which:

[0141] - Xi and X2 independently represent an oxygen atom;

[0142] - Ri and R2 are chosen independently from among the dialkylaminoalcohols, the al- esters hydroxycarboxylic acid alkyls and monoalkyl ethers of (poly)alkylene glycol, in which a hydroxy group has been removed, and mixtures thereof;

[0143] - n and z denote an integer from 1 to 20, with n+z > 2 and w is equal to 1;

[0144] - Li is chosen from a divalent aliphatic hydrocarbon radical in Ci-Ci8, a cycloalkylene radical at C3-Ci5, a heterocycloalkylene group at C3-Ci2, or an arylene group at C6-Ci4, and mixtures thereof;

[0145] - E independently represents a grouping chosen from:

[0146] - -O-R3-O-; -S-R4-S-; -R5-N(R6)-R4-N(R6)-R5-;

[0147] wherein R3 and R4 are independently selected 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;

[0148] - 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 Ci-Ci8 alkylene radical, possibly interrupted by one or more heteroatoms, and mixtures thereof; and

[0149] - R6 is chosen from a C6-Ci4 arylene radical, a C3-Ci2 cycloalkylene radical, a linear or branched CrCi8 alkylene radical, possibly interrupted by one or more heteroatom(s), and mixtures thereof.

[0150] More preferably, the (poly)carbodiimide compound is chosen from compounds of formula (II) in which:

[0151] - Xi and X2 independently represent an oxygen atom;

[0152] - Ri and R2, are independently of (poly)alkylene glycol monoalkyl ethers, in which a hydroxy group has been removed;

[0153] - n and z denote an integer from 1 to 20, with n+z > 2 and w is equal to 1;

[0154] - Li is a C3-Ci5 cycloalkylene radical;

[0155] - E independently represents a grouping chosen from:

[0156] - -O-R3-O-; -S-R4-S-; -R5-N(R6)-R4-N(R6)-R5-;

[0157] wherein R3 and R4 are independently selected 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;

[0158] - 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 Ci-Ci8 alkylene radical, possibly interrupted by one or more heteroatoms, and mixtures thereof; and

[0159] - R6 is chosen from a C6-Ci4 arylene radical, a C3-Ci2 cycloalkylene radical, a linear or branched CrCi8 alkylene radical, possibly interrupted by one or more heteroatom(s), and mixtures thereof.

[0160] Even more preferably, the (poly)carbodiimide compound is chosen from compounds of formula (II) in which:

[0161] - Xi and X2 independently represent an oxygen atom;

[0162] - Ri and R2, independently represent the compound of the following formula (VI):

[0163] R13-[O-CH2-C(H)(R14)]q- (VI),

[0164] wherein R[3] represents a Ci-C4 alkyl group or a phenyl group, preferably a CrC4 alkyl group, more preferably a methyl group, R[4] represents an atom of hydrogen or a C1-C4 alkyl group, preferably a hydrogen atom and q denotes an integer from 4 to 30;

[0165] - n and z denote an integer from 2 to 20, with n+z from 4 to 10 and w is equal to 1;

[0166] - Li is a C3-Ci5 cycloalkylene radical such as cyclopentylene, cyclo- heptylene, cyclohexylene and 4,4-dicyclohexylene methane; and

[0167] - E represents a grouping -O-R3-O- in which R3 is chosen from a radical arylene in C6-Ci4, a cycloalkylene radical in C3-Ci2, a linear or branched alkylene radical in CrCi8, possibly interrupted by one or more heteroatom(s), and mixtures thereof.

[0168] Even more preferably, the (poly)carbodiimide compound is chosen from compounds of formula (II) in which:

[0169] - Xi and X2 independently represent an oxygen atom;

[0170] - Ri and R2, independently represent the compound of the following formula (VI):

[0171] R13-[O-CH2-C(H)(R14)]q- (VI)

[0172] wherein R[3 represents a Ci-C4 alkyl group or a phenyl, preferably a CrC4 alkyl group, more preferably a methyl, R[4 represents a hydrogen atom or a Ci-C4 alkyl group, preferably a hydrogen atom and q denotes an integer from 4 to 30;

[0173] - n and z denote an integer from 2 to 20, with n+z from 4 to 10 and w is equal to 1;

[0174] - Li is a C3-Ci5 cycloalkylene radical such as cyclopentylene, cyclo- heptylene, cyclohexylene, 4,4-dicyclohexylene methane, preferably 4,4-dicyclohexylene methane; and

[0175] - E represents a group- -O-R3-O- in which R3 represents a radical linear or CrCi8 branched alkylene such as methylene, propylene, butylene ethylene, possibly interrupted by one or more heteroatom(s).

[0176] According to a preferred embodiment, the (poly)carbodiimide compound is a compound with the following formula (XII):

[0177] in which L1 is 4,4-dicyclohexylene methane, n and z denote an integer from 2 to 20, with n+z ranging from 4 to 10, E represents an -O-R3-O- group in which R3 represents a linear or CrCi8 branched alkylene radical such as methylene, propylene, butylene ethylene, optionally interrupted by one or more heteroatom(s), and r and s denote an integer from 4 to 30.

[0178] Advantageously, the total amount 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 from 1 to 6% by weight relative to the total weight of composition C. Silicone acrylic copolymer

[0179] Composition C used in the process according to the invention comprises at least one silicone acrylic copolymer.

[0180] Preferably, said silicone acrylic copolymer(s) comprise:

[0181] - at least one acrylic, methacrylic, or crotonic motif; and

[0182] - at least one polydimethylsiloxane (PDMS) motif.

[0183] For the purposes of this invention, "polydimethylsiloxanes" (also abbreviated as PDMS) means, in accordance with general acceptance, any linear organosilicon polymer or oligomer of variable molecular weight, obtained by polymerization and / or polycondensation of suitably functionalized silanes, and consisting essentially of a repetition of principal motifs in which silicon atoms are linked together by oxygen atoms (siloxane Si- bond). O-Si), comprising methyl radicals directly linked via a carbon atom to said silicon atoms.

[0184] The PDMS chains that 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, i.e. 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 terminal trimethylsilyl group on the other end of the chain.

[0185] By polymerizable radical group is meant a radical capable of polymerizing with other polymerizable radical groups or monomers. Preferably, the poly-dimethylsiloxane motif comprises at least one polymerizable radical group.

[0186] Preferably, the polymerizable radical group comprises at least one vinyl group.

[0187] Preferably, the polydimethylsiloxane (PDMS) motif comprises at least one polymerizable radical group comprising at least one vinyl group, preferably at least two polymerizable radical groups comprising at least one vinyl group, preferably located on at least one end of the chain.

[0188] As indicated above, said or said silicone acrylic copolymers preferably comprise at least one acrylic or methacrylic or crotonic motif, that is to say at least one motif comprising a carboxylic group.

[0189] The term “carboxylic group” means a functional group COOH or COO, the counter-ion of the COO group being able to be chosen from among the alkali metals, the alkaline earth metals, the quaternary ammoniums.

[0190] Preferably, said silicone acrylic copolymer(s) comprise:

[0191] - at least one acrylic or methacrylic or crotonic motif, and at least one motif acrylic ester or methacrylic ester or vinyl ester; and

[0192] - at least one polydimethylsiloxane (PDMS) motif.

[0193] More preferably, the composition comprises one or more silicone acrylic copolymers comprising: - at least one crotonic motif and at least one motif selected from an alkyl crotonate motif, the alkyl radical being a saturated linear or branched radical containing from 1 to 20 carbon atoms; a vinyl acetate motif; a vinyl alkyl ester motif, the alkyl radical being a saturated linear or branched radical containing from 2 to 20 carbon atoms; and mixtures thereof; and - at least one polydimethylsiloxane (PDMS) motif.

[0194] By crotonic motif is meant a motif derived from a crotonic acid monomer or one of its salts.

[0195] By alkyl crotonate motif, we mean a motif derived from an acid ester monomer crotonic, having an alkyl radical, linear or branched, saturated containing from 1 to 20 carbon atoms.

[0196] By vinyl alkyl ester motif is meant a motif derived from a vinyl ester monomer having a saturated linear or branched alkyl radical containing from 2 to 20 carbon atoms.

[0197] By vinylacetate motif, we mean a motif derived from a vinyl acetate monomer.

[0198] According to a preferred embodiment, said silicone acrylic copolymer(s) comprise: - at least one crotonic motif, at least one vinylacetate motif and at least one vinyl alkyl ester motif, 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) motif, preferably comprising at least one polymerizable radical group including at least one vinyl group.

[0199] According to a particularly preferred embodiment, said silicone acrylic copolymer(s) comprise: - at least one crotonic motif, at least one vinylacetate motif and at least one vinyl alkyl ester motif, the alkyl radical being a linear or branched, saturated radical containing from 6 to 16 carbon atoms, and

[0200] - at least one polydimethylsiloxane (PDMS) motif comprising at least one group polymerizable radical comprising at least one vinyl group.

[0201] More preferably, the composition comprises one or more silicone acrylic copolymers comprising: - at least one crotonic motif, at least one vinylacetate motif and at least one vinyl alkyl ester motif, 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) motif comprising at least one polymerizable radical group including at least one vinyl group.

[0202] Even more preferably, the composition comprises one or more silicone acrylic copolymers comprising:

[0203] - at least one crotonic motif, at least one vinylacetate motif and at least one motif vinyl alkyl ester, the alkyl radical being a linear or branched, saturated radical containing 6 to 16 carbon atoms; and

[0204] - at least one polydimethylsiloxane (PDMS) motif comprising at least one group polymerizable radical comprising at least one vinyl group.

[0205] Among the silicone acrylic copolymers that can be used in the context of the invention, mention may be made of the compound sold by 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.

[0206] Advantageously, the total amount 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 from 2 to 10% by weight relative to the total weight of composition C. Alkaline agent

[0207] Composition C used in the process according to the invention comprises at least one alkaline agent having a saturated vapor pressure at 20°C greater than or equal to 2500 Pa.

[0208] Preferably, the alkali agent(s) may be selected from organic alkali agents, inorganic alkali agents, and mixtures thereof.

[0209] Advantageously, the alkali agent(s) have a saturated vapor pressure at 20°C greater than or equal to 3000 Pa, preferably greater than or equal to 4000 Pa, preferably greater than or equal to 5000 Pa.

[0210] Advantageously, the alkali agent(s) have a saturation vapor pressure at 20°C ranging from 2500 to 350000 Pa, preferably from 3000 to 300000 Pa, preferably from 4000 to 250000 Pa, better from 5000 to 200000 Pa.

[0211] The term "saturating vapor pressure" means the pressure at which the gaseous phase of a substance is in equilibrium with its liquid or solid phase at a given temperature in a closed system.

[0212] The saturated vapor pressure of a compound can be measured in a closed chamber containing only the compound to be analyzed. The chamber is first evacuated to remove air from the vapor phase. This step also degasses the compound to be analyzed. The temperature of the chamber is then regulated to the desired temperature. After the system has reached equilibrium, the pressure of the gas phase is measured and corresponds to the vapor pressure of the compound.

[0213] The saturated vapor pressure of a compound can also be calculated, for example using Dupré's formula: s. / 1 / T \ ' In.:--= —-- î -- ■ "TI ■ —~—.tri II Pj Jè \ T / lï \ îg /

[0214] in which:

[0215] To represents the boiling point of the compound at a given pressure p0 (K);

[0216] Psat represents the saturated vapor pressure (in the same unit as p0);

[0217] a denotes the linearity factor of the variation of the fluid's enthalpy with temperature;

[0218] M denotes the molar mass of the compound (kg / mol);

[0219] Lv represents the latent heat of vaporization of the substance (J / kg);

[0220] R is the ideal gas constant (8.31447 J mol1 K;

[0221] T is the temperature of the vapor (K).

[0222] Saturated vapor pressure values ​​are generally available from the manufacturers of the raw materials, for example in safety data sheets.

[0223] Saturated vapor pressure values ​​can also be found in Perry's Chemical Engineers' Handbook, 6th edition, Robert H. Perry, Don W. Green, 1984, McGraw-Hill Book Company.

[0224] According to a preferred embodiment, the alkaline agent(s) according to the invention are chosen from ammonia, dimethylamine, ammonium carbonate, ammonium hydrogen carbonate and mixtures thereof, more preferably from ammonia, dimethylamine, ammonium carbonate and mixtures thereof.

[0225] Advantageously, the total quantity of alkali agent(s) having a saturated vapor pressure at 20°C greater than or equal to 2500 Pa ranges from 0.01 to 20% by weight, preferably from 0.05 to 15% by weight, more preferably from 0.1 to 10% by weight, better from 0.5 to 5% by weight relative to the total weight of composition C. Coloring agent

[0226] Composition C used in the process according to the invention comprises at least one coloring agent selected from pigments, direct colorants, and mixtures thereof.

[0227] Preferably, composition C used in the process according to the invention comprises at least one pigment.

[0228] The term "pigment" means all pigments that impart color to keratinous materials. Their solubility in water at 25 °C and atmospheric pressure (760 mmHg) is less than 0.05% by weight, and preferably less than 0.01%.

[0229] The pigments that can be used are in particular chosen from among the organic and / or mineral pigments known in the technique, in particular those described in Kirk-Othmer's Encyclopedia of Chemical Technology and in Ullmann's Encyclopedia of Industrial Chemistry.

[0230] They may be natural, of natural origin, or not.

[0231] These pigments may be in the form of a powder or pigment paste. They may be coated or uncoated.

[0232] Pigments can, for example, be chosen from mineral pigments, organic pigments, lacquers, special effect pigments such as mother-of-pearl or glitter, and mixtures thereof.

[0233] The pigment may be a mineral pigment. By mineral pigment, we mean any pigment that meets the definition in the Ullmann Encyclopedia in the chapter on inorganic pigments. Examples of mineral pigments useful in the present invention include iron or chromium oxides, manganese violet, ultramarine blue, chromium hydrate, ferric blue and titanium oxide.

[0234] The pigment may be an organic pigment. By "organic pigment" is meant any pigment that meets the definition in the Ullmann encyclopedia in the chapter on organic pigment.

[0235] The organic pigment may in particular be selected from the following compounds: nitroso, nitro, azo, xanthene, pyrene, quinoline, quinoline, anthraquinone, triphenylmethane, fluorane, phthalocyanine, metal complex type, isoindolinone, isoindoline, qui-nacridone, perinone, perylene, diketopyrrolopyrrole, indigo, thioindigo, dioxazine, triphenylmethane, quinophthalone.

[0236] In particular, white or colored organic pigments may be selected from carmine, carbon black, aniline black, azo yellow, quinacridone, phthalocyanine blue, the blue pigments coded in the Color Index under references Cl 42090, 69800, 69825, 74100, 74160, the yellow pigments coded in the Color Index under references Cl 11680, 11710, 19140, 20040, 21100, 21108, 47000, 47005, the green pigments coded in the Color Index under references Cl 61565, 61570, 74260, the orange pigments coded in the Color Index under reference CI 11725, 45370, 71105, the red pigments coded 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, the pigments obtained by oxidative polymerization of indole, phenolic derivatives as described in patent FR 2 679 771.

[0237] By way of example, one can also cite organic pigment pastes such as the products sold by the company HOECHST under the name:

[0238] - COSMENYL YELLOW IOG: Pigment YELLOW 3 (Cl 11710);

[0239] - COSMENYL YELLOW G: Pigment YELLOW 1 (Cl 11680);

[0240] - ORANGE COSMENYL GR: Pigment ORANGE 43 (Cl 71105);

[0241] - COSMENYL RED R: Pigment RED 4 (Cl 12085);

[0242] - CARMIN COSMENYL FB: Pigment RED 5 (Cl 12490);

[0243] - VIOLET COSMENYL RL: Pigment VIOLET 23 (Cl 51319);

[0244] - COSMENYL BLUE A2R: Pigment BLUE 15.1 (Cl 74160);

[0245] - COSMENYL GREEN GG: Pigment GREEN 7 (Cl 74260);

[0246] - COSMENYL BLACK R: Pigment BLACK 7 (Cl 77266).

[0247] The pigments according to the invention can also be in the form of composite pigments as described in patent EP 1 184 426. These composite pigments can be composed in particular of particles comprising an inorganic core, at least one binder ensuring the fixation of organic pigments on the core, and at least one organic pigment covering at least partially the core.

[0248] The organic pigment can also be a lake. By lake, we mean colorants adsorbed onto insoluble particles, the resulting mixture remains insoluble during use.

[0249] The inorganic substrates on which the dyes are adsorbed are, for example, alumina, silica, calcium sodium borosilicate or calcium aluminium borosilicate, and aluminium.

[0250] Among the colorants, we can mention carminic acid. We can also mention the colorants 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).

[0251] As examples of lacquers, we can cite the product known under the following name: D & C Red 7 (CI 15 850 :1).

[0252] The pigment can also be a special effects pigment. Special effects pigments are defined as pigments that generally create a non-uniform and changing colored appearance (characterized by a certain shade, vibrancy, and clarity) depending on the viewing conditions (light, temperature, viewing angles, etc.). They are thus distinct from colored pigments that provide a uniform opaque, semi-transparent, or conventionally transparent tint.

[0253] 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 mother-of-pearl, interference pigments or glitter.

[0254] Examples of special effect pigments include pearlescent pigments such as titanium-coated mica or bismuth oxychloride, colored pearlescent pigments such as titanium-coated mica with iron oxides, iron oxide-coated mica, titanium-coated mica, particularly with ferric blue or chromium oxide, titanium-coated mica with an organic pigment as defined above, and bismuth oxychloride-based pearlescent pigments. Examples of pearlescent pigments include Cellini pearlescent pigments marketed by BASF (Mica-TiO2-lake), Prestige pearlescent pigments marketed by Eckart (Mica-TiO2), Prestige Bronze marketed by Eckart (Mica-Fe2O3), and Colorona marketed by Merck (Mica-TiO2-Fe2O3).

[0255] We can also mention gold-colored mother-of-pearl, notably marketed by BASF under the names Brilliant Gold 212G (Timica), Gold 222C (Cloisonne), Sparkle Gold (Timica), Gold 4504 (Chromalite) and Monarch Gold 233X (Cloisonne); bronze mother-of-pearl, notably marketed by MERCK under the names Bronze Fine (17384) (Colorona) and Bronze (17353) (Colorona) and by the BASF under the name Super bronze (Cloisonne); orange mother-of-pearls, notably marketed 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 mother-of-pearls, notably marketed by BASF under the name Nu-antique copper 340XB (Cloisonne) and Brown CL4509 (Chromalite); copper-tinted mother-of-pearls, notably marketed by BASF under the name Copper 340A (Timica); red-tinted mother-of-pearls, notably marketed by MERCK under the name Sienna fine (17386) (Colorona); yellow-tinted mother-of-pearls, notably marketed by BASF under the name Yellow (4502) (Chromalite); red-tinted mother-of-pearl with a gold sheen, notably marketed by BASF under the name Sunstone G012 (Gemtone);Pink mother-of-pearl, notably marketed by BASF under the name Tan opale G005 (Gemtone); black mother-of-pearl with a gold sheen, notably marketed by BASF under the name Nu antique bronze 240 AB (Timica); blue mother-of-pearl, notably marketed by MERCK under the name Matte blue (17433) (Microna); white mother-of-pearl with a silver sheen, notably marketed by MERCK under the name Xirona Silver; and orange-pink-green-gold mother-of-pearl, notably marketed by MERCK under the name Indian summer (Xirona), and their mixtures.

[0256] As further examples of nacres, we can also mention particles comprising a borosilicate substrate coated with titanium oxide.

[0257] Particles with a glass substrate coated with titanium oxide are notably sold under the name METASHINE MC1080RY by the company TOYAL.

[0258] Finally, examples of mother-of-pearl include polyethylene terephthalate flakes, particularly those marketed by Meadowbrook Inventions under the name Silver IP 0.004X0.004 (silver flakes). Multilayer pigments based on synthetic substrates such as alumina, silica, calcium sodium borosilicate or calcium aluminum borosilicate, and aluminum can also be considered.

[0259] Special effect pigments may also be selected from reflective particles, that is to say, particles whose size, structure, including the thickness of the layer(s) that constitute them 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 applied to the makeup support, highlights visible to the naked eye, that is to say, brighter points that contrast with their surroundings by appearing to shine.

[0260] Reflective particles can 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, in particular, have a yellow, pink, red, bronze, orange, brown, gold and / or copper color or reflection.

[0261] These particles can have various shapes, including platelet or globular, particularly spherical.

[0262] Reflective particles, whatever their shape, may or may not have a multilayer structure and, in the case of a multilayer structure, for example at least one layer of uniform thickness, in particular of a reflective material.

[0263] When reflective particles do not have a multilayer structure, they can be composed, for example, of metal oxides, in particular titanium or iron oxides obtained by synthesis.

[0264] When reflective particles have a multilayer structure, they may, for example, comprise a natural or synthetic substrate, in particular a synthetic substrate at least partially coated by at least one layer of a reflective material, in particular at least one metal or metallic material. The substrate may be monomaterial, multimaterial, organic and / or inorganic.

[0265] More particularly, it may be selected from glasses, ceramics, graphite, metal oxides, aluminas, silicas, silicates, in particular aluminosilicates and borosilicates, synthetic mica and mixtures thereof, this list not being exhaustive.

[0266] The reflective material may include a layer of metal or a metallic material.

[0267] Reflective particles are described in particular in documents JP-A-09188830, JP-A-10158450, JP-A-10158541, JP-A-07258460 and JP-A-05017710.

[0268] As further examples of reflective particles comprising a mineral substrate coated with a layer of metal, one can also mention particles comprising a borosilicate substrate coated with silver.

[0269] Silver-coated glass substrate particles in the form of wafers are sold under the name MICROGLASS METASHINE REFSX 2025 PS by the company TOYAL. Nickel / chromium / molybdenum alloy-coated glass substrate particles are sold under the names CRYSTAL STAR GF 550, GF 2525 by the same company.

[0270] Particles comprising a metallic substrate such as silver, aluminum, iron, chromium, nickel, molybdenum, gold, copper, zinc, tin, magnesium, steel, bronze, titanium may also be used, said substrate being coated with at least one layer of at least one metallic oxide such as titanium oxide, oxide aluminium, iron oxide, cerium oxide, chromium oxide, silicon oxides and mixtures thereof.

[0271] An example can be cited as aluminium, bronze or copper powders coated with SiO2 marketed under the name VISIONAIRE by the company ECKART.

[0272] Other examples include non-substrate interference pigments such as liquid crystals (Wacker's Helicones HC) and interference holographic glitter (Spectratek's Geometry Pigments or Spectra f / x). Special effect pigments also include fluorescent pigments, whether daylight fluorescent or ultraviolet fluorescent, phosphorescent pigments, photochromic pigments, thermochromic pigments, and quantum dots, marketed, for example, by Quantum Dots Corporation.

[0273] 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, interference effects.

[0274] The size of the pigment used in the composition according to the present invention is generally between 10 nm and 200 µm, preferably between 20 nm and 80 µm, and more preferably between 30 nm and 50 µm.

[0275] The pigments can be dispersed within the composition by means of a dispersing agent.

[0276] The dispersing agent serves to protect the dispersed particles from agglomeration or flocculation. This dispersing agent may be a surfactant, an oligomer, a polymer, or a mixture of several of these, possessing one or more functionalities with a strong affinity for the surface of the particles to be dispersed. In particular, they may adhere physically or chemically to the surface of the pigments. These dispersants also have at least one functional group that is compatible with or soluble in the continuous medium.In particular, esters of 12-hydroxystearic acid are used, especially C8 to C20 fatty acids and polyols 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 Avecia, polyglyceryl-2 dipolyhydroxystearate (name CTFA) sold under the reference Dehymyls PGPH by Henkel or polyhydroxystearic acid such as that sold under the reference Arlacel P100 by Uniqema and their mixtures.

[0277] As another dispersant that can be used in the compositions of the invention, we can mention quaternary ammonium derivatives of polycondensed fatty acids such as Solsperse 17 000 sold by Avecia, poly dimethylsiloxane / oxypropylene mixtures such as those sold by Dow Corning under the references DC2-5185, DC2-5225 C.

[0278] The pigments used in the composition can be surface treated with an organic agent.

[0279] Thus the pigments previously treated on the surface useful within the framework of the invention are pigments which have undergone totally or partially a surface treatment of a chemical, electronic, electro-chemical, mechano-chemical 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 according to the invention.These organic agents may be chosen, for example, from waxes, such as 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 aluminum salts of fatty acids, for example aluminum stearate or laurate; metal alkoxides; polyethylene; (meth)acrylic polymers, for example polymethyl methacrylates; polymers and copolymers containing acrylate units; alkanoamines; silicone compounds, for example silicones, in particular polydimethylsiloxanes; fluorinated organic compounds, for example perfluoroalkyl ethers; Fluoro-silicon compounds.

[0280] The surface-treated pigments useful in the composition may also have been treated by a mixture of these compounds and / or have undergone several surface treatments.

[0281] The surface-treated pigments useful in the context of the present invention can be prepared using surface treatment techniques well known to those skilled in the art or found as such in the commercial market.

[0282] Preferably, the surface-treated pigments are covered by an organic layer.

[0283] 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.

[0284] Surface treatment can thus be achieved, for example, by a chemical reaction of a surfactant with the surface of the pigments and the 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.

[0285] Preferably, an organic agent covalently linked to the pigments will be used.

[0286] The surface treatment agent may represent from 0.1 to 50% by weight of the total weight of the pigment treated on the surface, preferably from 0.5 to 30% by weight, and even more preferably from 1 to 20% by weight of the total weight of the pigment treated on the surface.

[0287] Preferably, the surface treatments of the pigments are chosen from the following treatments:

[0288] - a PEG-Silicone treatment such as the AQ surface treatment marketed by LCW;

[0289] - a Methicone treatment such as the SI surface treatment marketed by LCW;

[0290] - a Dimethicone treatment such as the Covasil 3.05 com surface treatment marketed by LCW;

[0291] - a Dimethicone / Trimethylsiloxysilicate treatment as the surface treatment Covasil 4.05 marketed by LCW;

[0292] - a Magnesium Myristate treatment such as the MM com surface treatment marketed by LCW;

[0293] - an Aluminium Dimyristate treatment such as the MI com surface treatment marketed by Miyoshi;

[0294] - a Perfluoropolymethylisopropyl ether treatment as a surface treatment FHC marketed by LCW;

[0295] - an Isostearyl Sebacate treatment such as the commercially available HS surface treatment by Miyoshi;

[0296] - a Perfluoroalkyl Phosphate treatment as a PF surface treatment marketed by Daito;

[0297] - an acrylate / dimethicone copolymer and perfluoalkyl phosphate treatment such as the FSA surface treatment marketed by Daito;

[0298] - a Polymethylhydrogen siloxane / Perfluoroalkyl Phosphate treatment such as the FS01 surface treatment marketed by Daito;

[0299] - an Acrylate / Dimethicone Copolymer treatment as the surface treatment ASC marketed by Daito;

[0300] - an Isopropyl Titanium Triisostearate treatment such as the ITT surface treatment marketed by Daito;

[0301] - an Acrylate copolymer treatment such as the APD surface treatment marketed by Daito;

[0302] - a Perfluoroalkyl Phosphate / Isopropyl Titanium Triisostearate treatment such as the PF + ITT surface treatment marketed by Daito.

[0303] According to a particular embodiment of the invention, the dispersing agent is present with organic or inorganic pigments in submicron particulate form in composition B.

[0304] By "sub-micron" or in English "sub-micron" is meant pigments of which the particle size was 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.

[0305] According to one embodiment, the dispersing agent and the pigment(s) are present in quantity (dispersing agent: pigment), according to a weight ratio, 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.

[0306] The dispersing agent(s) may therefore have a silicone skeleton, such as silicone polyether, and amino-silicone dispersants, other than the amino silicones mentioned below. Suitable dispersing agents include:

[0307] - amino-silicones i.e. 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 les polymers,

[0308] - silicone acrylates such as Tego ® RC 902, Tego ® RC 922, Tego ® RC 1041, and Tego ® RC 1043, marketed by Evonik,

[0309] - polydimethylsiloxane (PDMS) silicones 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.

[0310] According to a particular embodiment, the dispersing agent(s) are of the amino-silicone type, different from the amino silicones mentioned below, and are cationic.

[0311] Preferably, the pigment(s) is / are chosen from mineral, mixed mineral-organic or organic pigments.

[0312] In one embodiment of the invention, the pigment(s) are organic pigments, preferably organic pigments surface-treated with an organic agent selected from silicone compounds. In another embodiment of the invention, the pigment(s) are mineral pigments.

[0313] Preferably, the pigment(s) are chosen from iron oxides, in particular red, brown or black. An example of an iron oxide is the iron oxide sold by Sun Chemical under the name SunPuro® Red Iron Oxide.

[0314] Direct dye

[0315] Composition C used in the process according to the invention may include one or more direct dye(s).

[0316] By "direct dye" is meant natural and / or synthetic dyes, different from oxidation dyes. These are dyes that will diffuse superficially onto the fiber.

[0317] They can be ionic or non-ionic, preferably cationic or non-ionic.

[0318] 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 in mixtures.

[0319] Direct dyes are preferably cationic direct dyes. Examples include the hydrazono cationic dyes of formulas (XIII) and (XIV), and the azo cationic dyes (XV) and (XVI) below: Hét+-N(Ra)-N=C(Rb)-Ars Q- (XIII)' (XIV), Hét* CCRa)=NN(Rb)-Ar£ Q Her-N=N-Ai; Q- + (XVI), Ai'*-N=i\-Ar , Q- v

[0320] formulas (XIII) to (XVI) in which:

[0321] - Het+ represents a cationic heteroaryl radical, preferentially with a ca charge endocyclic tionic such as imidazolium, indolium, or pyridinium, possibly preferentially substituted by at least one (CrC8)alkyl group such as methyl;

[0322] - 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;

[0323] - Ar represents an aryl group, in particular phenyl, possibly substituted, preferably by one or more electron-donating groups such as i) (Ci-C8)alkyl possibly substituted, ii) (Ci-C8)alkoxy possibly substituted, iii) (di)(Ci-C8)(alkyl)amino possibly 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 possibly substituted or else Ar represents a julolidine group;

[0324] - Ar” represents a (hetero)aryl group, possibly substituted such that phenyl or pyrazolyl possibly substituted, preferably by one or more (CrC8)alkyl, hydroxyl, (di)(Ci-C8)(alkyl)amino, (CrC8)alkoxy or phenyl groups;

[0325] - Ra and Rb, identical or different, representing a hydrogen atom or a (CrC8)alkyl group possibly substituted, preferably by a hydroxyl group;

[0326] or the substituent Ra with a substituent of Het+ and / or Rb with a substituent of Ar together with the atoms that bear them form a (hetero)cycloalkyl; particularly Ra and Rb, representing a hydrogen atom or a (CrC4)alkyl group possibly substituted by a hydroxyl group;

[0327] - Q- represents an organic or mineral anionic counterion such as a halide or an alkyl sulfate.

[0328] In particular, mention may be made of endocyclic cationic azo and hydrazono direct dyes of formula (XIII) to (XVI) as defined above; more particularly, endocyclic cationic direct dyes described in patent applications WO 95 / 15144, WO 95 / 01772 and EP-714954; preferably the following direct dyes: (XVIII),

[0329] Formulas (XVII) and (XVIII) in which:

[0330] - R1 represents an (Ci-C4)alkyl group such as methyl;

[0331] - R2 and R3, whether identical or different, represent a hydrogen atom or a (Ci-C4)alkyl group such as methyl; and

[0332] - R4 represents a hydrogen atom or an electron-donating group such as (Ci - C8)alkyl possibly substituted, (Ci-C8)alkoxy possibly substituted, (di)(CrC8)(alkyl)amino possibly substituted on the alkyl group(s) by a hydroxyl group; particularly R4 is a hydrogen atom,

[0333] - Z represents a CH group or a nitrogen atom, preferably CH,

[0334] - Q- is an anionic counterion as defined above, particularly ha lohenide such as chloride or an alkylsulfate such as methylsulfate or mesytyl.

[0335] In particular, the colorants of formula (XV) and (XVI) are selected from Basic Red 51, Basic Yellow 87 and Basic Orange 31 or their derivatives with Q' an anionic counter ion as defined above, particularly a halide such as chloride or an alkyl sulfate such as methyl sulfate or mesytyl.

[0336] Direct dyes can be chosen from anionic direct dyes. The anionic direct dyes of the invention are dyes commonly called Direct dyes are classified as "acidic" due to their affinity with alkali substances. Anionic direct dyes are defined as any direct dye containing in its structure at least one CO2R or SO3R substituent, where R represents a hydrogen atom, a cation from a metal or amine, or an ammonium ion. Anionic dyes can be selected from among acidic nitro dyes, acidic azo dyes, acidic azinic dyes, acidic triarylmethanic dyes, acidic indoamine dyes, acidic anthraquinone dyes, indigoids, and acidic natural dyes.

[0337] As examples of acid dyes useful to the invention, the following dyes with formulas (XIX), (XIX'), (XX), (XX'), (XXI), (XXI'), (XXII), (XXII'), (XXIII), (XXIV), (XXV) and (XXVI) may be cited: a. Diaryl anionic azo dyes of formula (XIX) or (XIX'):

[0338] formulas (XIX) and (XIX') in which:

[0339] - R7, R8, R9, Rio, R'7, R's, R'9 and R'i0, whether identical or different, represent an atom of hydrogen or a group chosen from:

[0340] - alkyl;

[0341] - alkoxy, alkylthio;

[0342] - hydroxy, mercapto;

[0343] - nitro, nitroso;

[0344] - 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;

[0345] - (O)2S(O-)-, M+ with M+ representing a hydrogen atom or a counterion ca tionic;

[0346] - (O)CO—, M+ with M+ as defined above;

[0347] - R”-S(O)2-, with R” representing a hydrogen atom, an alkyl group, a aryl group, (di)(alkyl)amino, aryl(alkyl)amino; preferably a phenylamino or phenyl group;

[0348] - R'”-S(O)2-X'- with R”' representing an alkyl group, possibly aryl substituted, X' as defined previously;

[0349] - (di)(alkyl)amino;

[0350] - 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;

[0351] - heteroaryl possibly substituted; preferably a benzo- group thiazolyl;

[0352] - cycloalkyl, in particular cyclohexyl;

[0353] - Ar-N=N- with Ar representing a possibly substituted aryl group; pre differentially a phenyl possibly substituted by one or more alkyl groups, (O)2S(O-)-, M+ or phenylamino;

[0354] - or two contiguous groups R7 with R8 or R8 with R9 or R9 with R10 together form a fused group benzo A'; and R'7 with R'8 or R'8 with R'9 or R'9 with R'1O together form a fused group benzo B'; with A' and B' possibly 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'-; vüi) R°-X'-C(X)-; ix) R°-X'-C(X)-X”-; x) Ar-N=N- and xi) aryl(alkyl)amino possibly substituted; with M+, R°, X, X', X” and Ar as defined above;

[0355] - 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 with the carbon atom bearing them form a spiro cycloalkyl; preferably W represents a sulfur atom or Ra and Rb together form a cyclohexyl;

[0356] it being understood that the 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.

[0357] 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;

[0358] et à titre d’exemple de colorants de formule (XIX’) on peut citer : Acid Red 111, Acid Red 134, Acid yellow 38 ;

[0359] b) les colorants azo anioniques pyrrazolone de formule (XX) et (XX’) :

[0360] formulas (XX) and (XX') in which:

[0361] - Rn, R12 and Rn, whether identical or different, represent a hydrogen atom, halogen, an alkyl group or -(O)2S(O-), M+ with M+ as defined previously;

[0362] - Rm represents a hydrogen atom, an alkyl group or a group - C(O)O-, M+ with M+ as defined previously;

[0363] - Rb represents a hydrogen atom;

[0364] - Ri6 represents an oxo group in which case R'i6 is absent, or else R[5 with R[6 together form a double bond;

[0365] - Rn and Ri8, whether identical or different, represent a hydrogen atom, or a group chosen from:

[0366] - (O)2S(O-)-, M+ with M+ as defined above;

[0367] - Ar-OS(O)2- with Ar representing an aryl group possibly substituted; preferably a phenyl possibly substituted by one or more alkyl groups;

[0368] - R19 and R2q together form either a double bond or a benzo D' group, possibly substituted;

[0369] - R' 16, R' 19 and R'2O, whether identical or different, represent a hydrogen atom or a alkyl group, or hydroxy;

[0370] - R2i represents a hydrogen atom, an alkyl group, or alkoxy;

[0371] - Ra and Rb, whether identical or different, are as defined above, preferably Ra represents a hydrogen atom and Rb represents an aryl group;

[0372] - Y represents either a hydroxy group or an oxo group;

[0373] - * » - - represents a single bond when Y is an oxo group; and represents a double bond when Y represents a hydroxy group;

[0374] it being understood that the 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;

[0375] Examples of colorants of formula (XX) include: Acid Red 195, Acid Yellow 23, Acid Yellow 27, Acid Yellow 76, and examples of colorants of formula (XX') include: Acid Yellow 17;

[0376] c) the anthraquinone dyes of formula (XXI) and (XXI'):

[0377] formulas (XXI) and (XXI') in which:

[0378] - R22, R23, R24, R25, R26 and R27, whether identical or different, represent an atom of hydrogen, halogen, or a group chosen from:

[0379] - alkyl;

[0380] - hydroxy, mercapto;

[0381] - alkoxy, alkylthio;

[0382] - aryloxy or arylthio, possibly substituted, preferably substituted by a or several groups chosen from alkyl and (O)2S(O-)-, M+ with M+ as defined previously;

[0383] - aryl(alkyl)amino optionally substituted by one or more selected groups among alkyl and (O)2S(O-)-, M+ with M+ as defined previously;

[0384] - (di)(alkyl)amino;

[0385] - (di)(hydroxyalkyl)amino

[0386] - (O)2S(O-)-, M+ with M+ as defined above;

[0387] - Z' represents a hydrogen atom or an NR28R29 group with R28 and R29, identical or different, represent a hydrogen atom or a group chosen from:

[0388] - alkyl;

[0389] - polyhydroxyalkyl such as hydroxyethyl;

[0390] - aryl possibly substituted by one or more particularly i) groups alkyl such as methyl, n-dodecyl, n-butyl; ii) (O)2S(O-)-, M+ with M+ as defined previously; iii) R°-C(X)-X'-, R°-X'-C(X)-, R°-X'-C(X)-X”- with R°, X, X' and X” as defined previously, preferably R° represents an alkyl group;

[0391] - cycloakyl, in particular cyclohexyl;

[0392] - Z represents a group chosen from hydroxy and NR'28R'29 with R'28 and R'29, identical or different, represent the same atoms or groups as R28 and R29 as defined previously;

[0393] 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;

[0394] Examples of colorants 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 colorants of formula (XXI') include: Acid Black 48;

[0395] d) Nitrated dyes of formula (XXII), (XXII'): (XXII), (XXII'), W—ALK-SOf M7 LOH no2

[0396] formulas (XXII) and (XXII') in which:

[0397] - R30, R3i and R32, whether identical or different, represent a hydrogen atom, halogen, or a group selected from:

[0398] - alkyl;

[0399] - alkoxy possibly substituted by one or more hydroxy groups, alkylthio possibly substituted by one or more hydroxy groups;

[0400] - hydroxy, mercapto;

[0401] - nitro, nitroso;

[0402] - polyhalogenoalkyl;

[0403] - R°-C(X)-X'-, R°-X'-C(X)-, R°-X'-C(X)-X' ' - with R° ; X, X' and X” as defined previously;

[0404] - (O)2S(O-)-, M+ with M+ as defined above;

[0405] - (O)CO—, M+ with M+ as defined above;

[0406] - (di)(alkyl)amino;

[0407] - (di)(hydroxyalkyl)amino;

[0408] - heterocycloalkyl such as piperidino, piperazino or morpholino; particularly R 30, R3i and R32 represent a hydrogen atom;

[0409] - Rc and Rd, whether identical or different, represent a hydrogen atom or a alkyl group;

[0410] - W is as defined above; W particularly represents a grouping -NH-;

[0411] - ALK represents a linear or branched divalent alkylene group, in Ci-C6; particularly ALK represents a grouping -CH2-CH2-;

[0412] - n is equal to 1 or 2;

[0413] - p represents an integer between 1 and 5 inclusive;

[0414] - q represents an integer between 1 and 4 inclusive;

[0415] - u is equal to 0 or 1;

[0416] - when n equals 1, J represents a nitro or nitroso group; particularly nitro;

[0417] - when n equals 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 -SO2- ;

[0418] - M' represents a hydrogen atom or a cationic counter-ion;

[0419] - ... present or absent represents a benzo group possibly substituted by one or more R30 groups as defined above,

[0420] it being understood that formulas (XXII) and (XXII') comprise at least one sulfonate radical (O)2S(O-)-, M+ or one carboxylate radical -C(O)O-, M+; preferably sodium sulfonate.

[0421] As an example of colorants of formula (XXII) we can cite: Acid Brown 13; Acid Orange 3; examples of colorants of formula (XXII') include: Acid Yellow 1, Sodium salt of 2,4-dinitro-1-naphthol-7-sulfonic acid, 2-piperidino-5-nitrobenzenesulfonic acid, 2(4'-N,N(2"-hydroxyethyl)amino-2'-nitro)aniline ethanesulfonic acid, 4-[3-hydroxyethylamino-3-nitrobenzenesulfonic acid; EXT D&C yellow 7;

[0422] e) triarylmethane dyes of formula (XXIII):

[0423] formula (XXIII) in which:

[0424] - R33, R34, R35 and R36, whether identical or different, represent a hydrogen atom or a group chosen from alkyl, possibly substituted aryl and possibly substituted arylalkyl; particularly an alkyl and benzyl group possibly substituted by an (O)mS(O-)-, M+ group with M+ and m as defined above;

[0425] - R37, R38, R39, R40, R41, R42, R43 and R44, whether identical or different, represent an atom of hydrogen or a group chosen from:

[0426] - alkyl;

[0427] - alkoxy, alkylthio;

[0428] - (di)(alkyl)amino;

[0429] - hydroxy, mercapto;

[0430] - nitro, nitroso;

[0431] - R°-C(X)-X'-, R°-X'-C(X)-, R°-X'-C(X)-X”- with R° representing 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;

[0432] - (O)2S(O-)-, M+ with M+ representing a hydrogen atom or a counterion ca tionic;

[0433] - (O)CO—, M+ with M+ as defined above;

[0434] - or two contiguous groups Ru with R2 or R42 with R3 or R3 with R44 together form a fused benzo group: I'; with I' possibly 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;

[0435] 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 an (O)2S(O-)- group;

[0436] provided that at least one of the rings G, H, I or I' comprises at least one sulfonate radical (O)2S(O-)- or one carboxylate radical -C(O)O-; preferably sulfonate.

[0437] Examples of colorants of formula (XXIII) include: Acid Blue 1; Acid Blue 3; Acid Blue 7, Acid Blue 9; Acid Violet 49; Acid green 3; Acid green 5; Acid Green 50.

[0438] f) xanthene-derived dyes of formula (XXIV): (XXIV),

[0439] formula (XXIV) in which:

[0440] - R5, R46, R7 and R48, whether identical or different, represent a hydrogen atom or an atom of halogen;

[0441] - R9, R50, R5i and R52, whether identical or different, represent a hydrogen atom, halogen, or a group selected from:

[0442] - alkyl;

[0443] - alkoxy, alkylthio;

[0444] - hydroxy, mercapto;

[0445] - nitro, nitroso;

[0446] - (O)2S(O-)-, M+ with M+ representing a hydrogen atom or a counterion ca tionic;

[0447] - (O)CO—, M+ with M+ as defined above;

[0448] particularly R49, R50, R5i and R52 represent a hydrogen or halogen atom

[0449] - G represents an oxygen atom, a sulfur atom, or an NRe group with Re such that defined previously; in particular G represents an oxygen atom;

[0450] - L represents an O-, M+ alkoxide; an S-, M+ thioalkoxide 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;

[0451] - L' represents an oxygen atom, a sulfur atom, or an ammonium group: N+RfRg, with Rf and Rg, identical or different, representing a hydrogen atom, an alkyl group, possibly substituted aryl; L' particularly represents an oxygen atom or a phenylamino group possibly substituted by one or more alkyl groups or (O)mS(O-)-, M+ with m and M+ as defined previously;

[0452] - Q and Q', identical or different, represent an oxygen or sulfur atom; in particular Q and Q' represent an oxygen atom;

[0453] - M+ is as defined previously.

[0454] Examples of colorants of formula (XXIV) include: Acid Yellow 73; Acid Red 51; Acid Red 52; Acid Red 87; Acid Red 92; Acid Red 95; Acid Violet 9;

[0455] g) dyes derived from indole of formula (XXV): (XXV),

[0456] formula (XXV) in which:

[0457] - R53, R54, R55, R56, R57, R58, R59 and R60, whether identical or different, represent an atom of hydrogen or a group chosen from:

[0458] - alkyl;

[0459] - alkoxy, alkylthio;

[0460] - hydroxy, mercapto;

[0461] - nitro, nitroso;

[0462] - R°-C(X)-X'-, R°-X' -C(X)-, R°-X'-C(X)-X' ' - with R° representing 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;

[0463] - (O)2S(O-)-, M+ with M+ representing a hydrogen atom or a counterion ca tionic;

[0464] - (O)CO—, M+ with M+ as defined above;

[0465] - G represents an oxygen atom, a sulfur atom, or an NRe group with Re such that defined previously; in particular G represents an oxygen atom;

[0466] - Ri and Rh, whether identical or different, represent a hydrogen atom or a alkyl group;

[0467] it being understood that the formula (XXV) comprises at least one sulfonate radical (O)2S(O-)-, M+ or one carboxylate radical -C(O)O-, M+; preferably sodium sulfonate.

[0468] As an example of colorants of formula (XXV) we can cite: Acid Blue 74;

[0469] h) quinoline-derived dyes of formula (XXVI): (XXVI),

[0470] formula (XXVI) in which:

[0471] - R6i represents a hydrogen atom, a halogen atom or an alkyl group;

[0472] - R62, R63, and RM, whether identical or different, represent a hydrogen atom or a group (O)2S(O-)-, M+ with M+ representing a hydrogen atom or a cationic counter-ion;

[0473] or R6[ with R62, or R6[ with R64, together form a benzo group possibly substituted by one or more (O)2S(O-)- groups, M+ with M+ representing a hydrogen atom or a cationic counter-ion;

[0474] it being understood that formula (XXVI) comprises at least one sulfonate radical (O)2 S(O-)-, M+ preferably sodium sulfonate.

[0475] Examples of colorants of formula (XXVI) include: Acid Yellow 2, Acid Yellow 3 and Acid Yellow 5.

[0476] Among the natural direct dyes that can be used according to the invention are lawsone, juglone, alizarin, purpurin, carminic acid, kermesic acid, purpurogallin, protocatechaldehyde, indigo, isatin, curcumin, spinulosin, apigenidine, and orceins. Extracts or decoctions containing these natural dyes, and in particular henna-based poultices or extracts, can also be used.

[0477] Preferably, the direct dyes are chosen from anionic direct dyes.

[0478] The colouring agent(s) may be present in a total quantity 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 colouring agent(s) are chosen from pigments.

[0479] The pigment(s) may be present in a total quantity ranging from 0.05 to 20% by weight, preferably from 0.1 to 15% by weight, better from 0.5 to 10% by weight relative to the total weight of composition C.

[0480] The direct colorant(s) may be present in a total quantity ranging from 0.001 to 10% by weight, preferably from 0.005 to 5% by weight relative to the total weight of composition C. Non-carboxylic anionic thickening agent

[0481] Composition C used in the process according to the invention may further comprise at least one non-carboxylic anionic thickening agent.

[0482] For the purposes of the present invention, "non-carboxylic agent" means an agent that does not include a carboxylic acid (-COOH) or carboxylate (-COO) function.

[0483] For the purposes of this invention, a thickening agent is defined as 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 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 similar).

[0484] Preferably, the non-carboxylic anionic thickening agent(s) are chosen from non-carboxylic anionic polymers, more preferably from anionic polymers with sulfonic group(s).

[0485] For the purposes of this invention, anionic polymer means a polymer comprising one or more anionic or anionizable groups and not comprising any cationic or cationizable group.

[0486] Advantageously, the non-carboxylic anionic thickening agent(s) are selected from anionic polymers comprising at least one monomer with ethylenic unsaturation and a sulfonic group, in free or partially or fully- completely neutralized.

[0487] These polymers can be crosslinked or non-crosslinked. They are preferably crosslinked.

[0488] These polymers may be associative or non-associative, preferably non-associative.

[0489] It is recalled that "associative polymers" are polymers capable, in an aqueous medium, of reversibly associating with each other or with other molecules.

[0490] Their chemical structure includes more particularly at least one hydrophilic zone and at least one hydrophobic zone.

[0491] By "hydrophobic group" is meant a hydrocarbon chain radical or polymer, saturated or unsaturated, linear or branched, comprising at least 8 carbon atoms, preferably 10 to 30 carbon atoms, in particular 12 to 30 carbon atoms and more preferably 18 to 30 carbon atoms.

[0492] Preferably, the hydrocarbon group is derived from a monofunctional compound. For example, the hydrophobic group may be derived from a fatty alcohol such as stearyl alcohol, dodecyl alcohol, or decyl alcohol. It may also refer to a hydrocarbon polymer such as polybutadiene.

[0493] Monomers with ethylenic unsaturation and a sulfonic group are selected 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 and their partially or totally neutralized forms.

[0494] More preferably, (meth)acrylamido(Ci-C22) alkylsulfonic acids 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 and their partially or totally neutralized forms will be used.

[0495] In particular, 2-acrylamido-2-methylpropanesulfonic acid (AMPS) and its partially or totally neutralized forms will be used.

[0496] 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 in particular mention may be made of the product described in Example 1 of document EP 503 853 and reference may be made to this document for information relating to these polymers.

[0497] We can also mention 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-lacrylate / sodium acryloyldimethyl taurate copolymer).

[0498] Associative AMPS polymers may, in particular, be selected from statistically 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 selected, 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.

[0499] Preferred polymers of this family are chosen from among associative copolymers of AMPS and at least one hydrophobic monomer with ethylenic unsaturation.

[0500] These same copolymers may further contain one or more ethylenically unsaturated monomers without a fatty chain such as (meth)acrylic acid derivatives, in particular their esters obtained with monoalcohols or mono- or poly-alkylene glycols, (meth)acrylamides, vinylpyrrolidone, or mixtures of these compounds.

[0501] These copolymers are described in particular in patent application EP-A-750899, US patent 5089578 and in the following publications by Yotaro Morishima:

[0502] - “Self-assembly amphiphilic polyelectrolytes and their nanostructures - Chinese Journal of Polymer Science Vol. 18, No. 40, (2000), 323-336. » ;

[0503] - “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”;

[0504] - “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”;

[0505] - “Stimuli responsive amphiphilic copolymers of sodium 2-(acrylamido)-2-methylpropanesulfonate and associative macromonomers - Polym. Preprint, Div. Polym. Chem., 40(2), (1999), 220-221”.

[0506] Among these polymers, we can mention:

[0507] - crosslinked or non-crosslinked copolymers, neutralized or not, comprising from 15 to 60% by weight of AMPS motifs and 40 to 85% by weight of (C8-Ci6)alkyl(meth)acrylamide or (C8-Ci6)alkyl(meth)acrylate motifs relative to polymer, such as those described in application EP-A750 899;

[0508] - terpolymers comprising from 10 to 90 mol% of acrylamide motifs, from 0.1 to 10 mole percent of AMPS motifs and 5 to 80 mole percent of n-(C6-Ci8)alkylacrylamide motifs, such as those described in US patent 5089578.

[0509] We can also mention copolymers of totally neutralized AMPS and dodecyl methacrylate as well as copolymers of uncrosslinked and crosslinked AMPS and n-dodecylmethacrylamide, such as those described in the articles by Morishima cited above.

[0510] Preferably, the non-carboxylic anionic thickening agent(s) are selected from the sodium 2-acrylamido-2-methylpropane-sulfonate / hydroxyethylacrylate copolymer, marketed by SEPPIC (INCI name: hydroxyethyl-lacrylate / sodium acryloyldimethyl taurate copolymer).

[0511] 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 from 0.1 to 5% by weight, and better still from 0.1 to 3% by weight, relative to the total weight of composition C. Amino silicone

[0512] Composition C used in the process according to the invention may further comprise at least one amino silicone.

[0513] The term “amino silicone” means any silicone comprising at least one primary, secondary, tertiary amine or one quaternary ammonium group.

[0514] Preferably, the amino silicone is different from the silicone acrylic copolymer.

[0515] The average molecular masses by weight of these amine-based silicones can be measured by Gel Permeation Chromatography (GPC) at room temperature (25°C) in polystyrene equivalents. The columns used are Styragel p-columns. The eluent is THF, and the flow rate is 1 ml / min. 200 µL of a 0.5% by weight silicone solution is injected into the THF. Detection is performed by refractometry and UV measurement.

[0516] Preferably, the amine-based silicone(s) that may be used in the context of the invention are chosen from:

[0517] a) polysiloxanes corresponding to formula (A): HO--- CH. 1 " Si---O- CH. 2 x' OH i — Si---O - HH -H (HAS)

[0518] in which x' and y' are integers such that the average molecular weight in weight (Mw) is between approximately 5,000 and 500,000;

[0519] b) Amino silicones conforming to formula (B):

[0520] R'aG3-a-Si(OSiG2)n-(OSiGbR'2-b)mO-SiG3-a-R'a (B)

[0521] wherein: - G, identical or different, denotes a hydrogen atom, a phenyl group, OH, alkyl group in CrC8, for example methyl, or alkoxy group in CrC8, for example methoxy, - 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 from 2 to 8, and L is an amine group possibly quatemized 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 Ci-C2o alkyl radical; Q denotes a group of formula CrH2r, linear or branched, r being an integer from 2 to 6, preferably from 2 to 4; and A- represents a cosmetically acceptable anion, in particular a halide such as fluoride, chloride, bromide or iodide.

[0522] Preferably, the amino silicone(s) are selected from the amino silicones of formula (B). Preferably, the amino silicones of formula (B) are selected from the amino silicones conforming to the following formulas (C), (D), (E), (F), and / or (G).

[0523] According to a first embodiment, the amino silicones corresponding to formula (B) are chosen from the silicones called "trimethylsilylamodimethicone" corresponding to formula (C): In CH, [ " n es OS <CH,}3 CH, tCHp, 1 x w n N H i (CH \ i.yry, nh2 m

[0524] 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.

[0525] According to a second embodiment, the amino silicones corresponding to formula (B) are chosen from the silicones of the following formula (D): (D)

[0526] 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 can designate a number from 0 to 999 and in particular from 49 to 249 and more particularly from 125 to 175 and m can 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 Ci-C4, at least one of the radicals Ri to R3 designating an alkoxy radical.

[0527] Preferably the alkoxy radical is a methoxy radical.

[0528] The hydroxy / alkoxy molar ratio is preferably 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.

[0529] The average molecular mass by weight (Mw) of these silicones preferably ranges from 2000 to 1,000,000, more particularly from 3500 to 200,000.

[0530] According to a third embodiment, the amino silicones corresponding to formula (B) are chosen from the following silicones of formula (E):

[0531] 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 can designate a number from 0 to 999 and in particular from 49 to 349 and more particularly from 159 to 239 and q can designate a number from 1 to 1000, in particular from 1 to 10 and more particularly from 1 to 5; - 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.

[0532] Preferably the alkoxy radical is a methoxy radical.

[0533] 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.

[0534] The average molecular mass by weight (Mw) of silicone is preferably from 2000 to 200000 and even more particularly from 5000 to 100000 and more particularly from 10000 to 50000.

[0535] Commercial products comprising structural silicones (D) or (E) may include in their composition one or more other amino silicones whose structure is different from formulas (D) or (E).

[0536] A product containing structure (D) amino silicones is offered by the company WACKER under the name BELSIL® ADM 652.

[0537] A product containing structural amino silicones (E) is offered by WACKER under the name Fluid WR 1300® or under the name Belsil ADM Log 1.

[0538] When these amino silicones are implemented, 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 type, but preferably cationic and / or nonionic. The average number size of the silicone particles in the emulsion generally ranges from 3 nm to 500 nanometers. Preferably, particularly for amino silicones of formula (E), microemulsions are used with an average particle size ranging from 5 nm to 60 nanometers (inclusive), and more particularly from 10 nm to 50 nanometers (inclusive). Thus, according to the invention, amino silicone microemulsions of formula (E) offered under the names FINISH CT 96 E® or SLM 28020® by WACKER can be used.

[0539] According to a fourth embodiment, the amino silicones corresponding to formula (B) are chosen from the silicones of the following formula (F): O--1--O xyx ¢.9 1 OI 1 c œ—on T.' XXX V--05 - < — - O--X 1 1 1 XO . 1. 15—w—15 1 O 1 E

[0540] in which:

[0541]

[0542]

[0543] - 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 designates a linear or branched alkylene radical having from 4 to 8 carbon atoms and preferably 4 carbon atoms. This radical is preferably linear. The average molecular weight (Mw) of these amino silicones preferably ranges from 2000 to 1000000 and even more particularly from 3500 to 200000. Another silicone meeting 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):

[0544]

[0545]

[0546]

[0547] 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 designates a linear or branched alkylene radical having from 4 to 8 carbon atoms and preferably 4 carbon atoms. This radical is preferably branched. The average molecular weight (Mw) of these amino silicones preferably ranges from 500 to 1,000,000 and even more particularly from 1,000 to 200,000. One silicone that meets this formula is, for example, DOW CORNING's DC2-8566 Amino Fluid. c) Amino silicones conforming to formula (H): CHOH —CH,—M (R5> R. If— O (H)

[0548] in which: - R5 represents a monovalent hydrocarbon radical having from 1 to 18 carbon atoms, and in particular an alkyl radical in CrCi8, or alkenyl in C2-Ci8, 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 a salt of organic acid, 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.

[0549] Such amino silicones are described in particular in US patent 4,185,087.

[0550] - d) quaternary ammonium silicones of formula (I): R- OH l; i Rg-N-CH^HCH R, 1' Si:: FC - CH - - CH OH - C H. I R7

[0551] in which: - R7, identical or different, represent a monovalent hydrocarbon radical having from 1 to 18 carbon atoms, and in particular an alkyl radical in Ci-Ci8, an alkenyl radical in C2-Ci8 or a ring comprising 5 or 6 carbon atoms, for example methyl; - R6 represents a divalent hydrocarbon radical, in particular an alkylene radical in Ci-Ci8 or a divalent alkyleneoxy radical in Ci-Ci8, for example in CrC8 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 an alkyl radical in CrCi8, an alkenyl radical in C2-Ci8, an -R6-NHCOR7 radical; - X- is an anion such as a halide ion, in particular chloride or a salt of organic acid, in particular acetate; - r represents an average statistical value ranging from 2 to 200, in particular from 5 to 100.

[0552] These silicones are described for example in application EP-A-0530974.

[0553] e) Amino silicones of formula (J):

[0554] in which: - Rb R2, R3 and R4, whether identical or different, designate a C1-C4 alkyl radical or a phenyl group, - R5 designates 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.

[0555] f) multiblock polyoxyalkylened amine silicones, of type (AB)n, A being a polysiloxane block and B being a polyoxyalkylened block comprising at least one amine group.

[0556] Said silicones are preferably made up of repeating units of the following general formulas:

[0557] [-(SiMe2O)xSiMe2 - R -N(R")- R'-O(C2H4O)a(C3H6O)b -R'-N(H)-R-]

[0558] or

[0559] [-(SiMe2O)xSiMe2 - R -N(R")- R' - O(C2H4O)a(C3H6O)b -]

[0560] in which: - a is an integer greater than or equal to 1, preferably from 5 to 200, more particularly from 10 to 100; - b is an integer between 0 and 200, preferably from 4 to 100, more particularly between 5 and 30; - x is an integer ranging from 1 to 10000, more specifically from 10 to 5000; - R" is a hydrogen atom or a methyl atom; - R, whether identical or different, represents a linear or branched C2-Ci2 hydrocarbon divalent radical, possibly containing 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; preferably R denotes a CH2CH2CH2OCH2CH(OH)CH2 radical - R', identical or different, represent a divalent hydrocarbon radical in C2-Ci2, linear or branched, possibly comprising one or more heteroatoms such as oxygen; preferably, R' designates an ethylene radical, a linear or branched propylene radical, a linear or branched butylene radical, or a CH2CH2CH2OCH2 CH(OH)CH2- radical; preferably R' designates -CH(CH3)-CH2-.

[0561] The siloxane blocks preferably represent 50 and 95% by moles of the total weight of the silicone, more particularly 70 to 85% by moles.

[0562] The amine content 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.

[0563] The average molecular mass by weight (Mw) of silicone is preferably between 5000 and 1000000, more particularly between 10000 and 200000.

[0564] We can cite in particular the silicones marketed under the names Silsoft A-843 or Silsoft A+ by Momentive.

[0565] g) and their mixtures.

[0566] Preferably, the amino silicones of formula (B) are chosen from among the amino silicones meeting the formula (E).

[0567] Preferably, composition C used in the process according to the invention comprises at least one amino silicone.

[0568] Preferably, composition C used in the process according to the invention comprises at least one amino silicone with INCI name amodimethicone, preferably introduced in the form of an emulsion or microemulsion with surfactants.

[0569] Preferably, composition C used in the process according to the invention comprises at least one amino silicone of INCI name amodimethicone in emulsion or microemulsion with surfactants of INCI name trideceth-5 and trideceth-10.

[0570] The amine silicone(s) may be present in a total quantity varying from 0.01% to 20%, preferably from 0.05% to 15%, more preferably from 0.1% to 10%, more preferably still from 0.2% to 8% by weight relative to the total weight of composition C. Organic solvents

[0571] Composition C according to the invention may comprise one or more organic solvents.

[0572] Examples of organic solvents include lower CrC4 alkanols such as ethanol and isopropanol; polyols and polyol ethers such as 2-butoxyethanol, 1,2-hexanediol, propylene glycol, pentylene glycol, propylene glycol monomethyl ether, diethylene glycol monoethyl ether and monomethyl ether, as well as aromatic alcohols, in particular aromatic monoalcohols such as benzyl alcohol, phenoxyethanol and mixtures thereof.

[0573] Organic solvents may be present in a total quantity of between 0.01 and 60% by weight, preferably between 0.05 and 50% by weight relative to the total weight of composition C.

[0574] Composition C used in the process according to the invention may be aqueous. The water content may range from 1 to 70% by weight, preferably from 10 to 65% by weight, more preferably from 20 to 65% by weight relative to the total weight of composition C.

[0575] When composition C is aqueous, the pH can vary from 7 to 11, preferably from 7 to 10. Additives

[0576] Composition C used in the process according to the invention may contain any adjuvant or additive usually used.

[0577] Among the additives that may be contained in the composition, we can mention 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.

[0578] The composition C used in the process according to the invention may be in particular in the form of a suspension, dispersion, gel, emulsion, in particular an oil-in-water (O / W) or water-in-oil (W / O) emulsion, or multiple (W / O / W or polyol / O / W or O / O / O), in the form of a cream, foam, stick, dispersion of vesicles in particular of ionic or non-ionic lipids, bi-phase or multi-phase lotion.

[0579] 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 their 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

[0580] The hair coloring process according to the invention may further include the application to the hair of a composition D comprising at least one silicone compound comprising at least one carboxylic group.

[0581] 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 above.

[0582] The term “carboxylic group” means a functional group COOH or COO, the counter-ion of the COO group being able to be chosen from among the alkali metals, the alkaline earth metals, the quaternary ammoniums.

[0583] The silicones that may be used may be soluble or insoluble in composition D; they may be in the form of oil, wax, resin or gum; silicone oils and gums are preferred.

[0584] Silicones are described in detail in particular in Walter NOLL's book "Chemistry and Technology of Silicones" (1968), Academy Press.

[0585] Preferably, the silicone compound(s) comprising at least one carboxylic group are chosen from the organosiloxanes of the following formula (XXVII): (XXVII)

[0586] 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 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 selected from the sulfur atom, the nitrogen atom, the oxygen atom and mixtures thereof, 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 Ra-(ORb)x-COOM group with Ra representing an alkylene group, linear or branched, having from 1 to 4 carbon atoms, Rb representing an alkyl group having from 1 to 4 carbon atoms, x being an integer 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 1 to 4 carbon atoms; - R3 independently represent an alkyl group having from 1 to 20 carbon atoms; a hydroxyl 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, possibly interrupted by at least one heteroatom chosen from sulfur, nitrogen, oxygen, and mixtures thereof, and M representing a hydrogen atom; an alkali or alkaline earth metal or a quaternary ammonium NR'3, with identical or different R's, representing H or an alkyl group 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 Ra-(ORb)x group. COOM with Ra representing an alkylene group, linear or branched, having from 1 to 4 carbon atoms, Rb representing an alkyl group having from 1 to 4 carbon atoms, x being an integer 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 denotes 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 1 to 4 carbon atoms.

[0587] In particular, the silicone compound(s) comprising at least one carboxyl group may be selected from the organosiloxanes of the following formula (XXVIII): _ (XXVIII), R1 F RI n RI MOOC — R 4—S) ——O--S î • — G.............Si R 4 COOM Jm âi J n

[0588] in which: - 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, possibly interrupted by at least one heteroatom chosen from the sulfur atom, the nitrogen atom, the oxygen atom and mixtures thereof; or a divalent Ra-(ORb)x- group with Ra representing an alkylene group, linear or branched, having from 1 to 4 carbon atoms, Rb representing an alkylene group having from 1 to 4 carbon atoms, and x being an integer 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 1 to 4 carbon atoms; - n denotes an integer ranging from 1 to 1000;

[0589] - organosiloxanes of the following formula (XXIX): (XXIX),

[0590] 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 group - R4 represents a linear or branched alkylene group, saturated or unsaturated, having from 1 to 20 carbon atoms, preferably from 4 to 16 carbon atoms, possibly interrupted by at least one heteroatom chosen from the sulfur atom, the nitrogen atom, the oxygen atom and mixtures thereof; or a divalent group Ra-(ORb)x- with Ra representing an alkylene group, linear or branched, having from 1 to 4 carbon atoms, Rb representing an alkylene group having from 1 to 4 carbon atoms, and x being an integer 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 1 to 4 carbon atoms; - p denotes an integer ranging from 1 to 1000; - n denotes an integer ranging from 1 to 1000;

[0591] - organosiloxanes of the following formula (XXX):

[0592] 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, possibly interrupted by au less a heteroatom chosen from the sulfur atom, the nitrogen atom, the oxygen atom and mixtures thereof; or a divalent group Ra-(ORb)x- with Ra representing an alkylene group, linear or branched, having from 1 to 4 carbon atoms, Rb representing an alkylene group having from 1 to 4 carbon atoms, and x being an integer 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; - 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 1 to 4 carbon atoms; - n denotes an integer ranging from 1 to 1000;

[0593] - organosiloxanes of the following formula (XXXI):

[0594] 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.

[0595] -and their mixtures.

[0596] Among the organosiloxanes of formula (XXVIII), we can cite the polydimethyl-siloxane (PDMS) with terminal carboxy function such as the compounds sold by the company Momentive under the trade name SILFORM INX (INCI name: Bis-Carboxydecyl dimethicone).

[0597] Among the organosiloxanes of formula (XXIX), one can cite the polydimethylsiloxane (PDMS) with a pendant carboxy function such as the compounds sold by the Shin company Etsu under the trade name X-22-3701E.

[0598] Among the organosiloxanes of formula (XXX), we can cite the polydimethylsiloxane (PDMS) with terminal carboxy function such as the compounds sold by the company Shin Etsu under the trade name X-22-3710.

[0599] Among the organosiloxanes of formula (XXXI), we can cite 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).

[0600] 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 herein by reference.

[0601] Preferably, the silicone compound(s) comprising at least one carboxylic group are chosen from organopolysiloxanes of formula (XXVIII), organopolysiloxanes of formula (XXIX) and mixtures thereof.

[0602] More preferably, the silicone compound(s) comprising at least one carboxylic group are chosen from among the organopolysiloxanes of the following formula (XXVIII): (XXVIII)

[0603] in which:

[0604] - 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, possibly interrupted by at least one heteroatom chosen from the sulfur atom, the nitrogen atom, the oxygen atom and mixtures thereof; or a divalent Ra-(ORb)x- group with Ra representing an alkylene group, linear or branched, having from 1 to 4 carbon atoms, Rb representing an alkylene group having from 1 to 4 carbon atoms, and x being an integer 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 1 to 4 carbon atoms; - n denotes an integer ranging from 1 to 1000.

[0605] Advantageously, the total amount 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 from 1 to 5% by weight relative to the total weight of composition D. Oils

[0606] Composition D may comprise one or more oil(s) different from the silicone compounds comprising at least one carboxylic group previously described.

[0607] Preferably, composition D comprises one or more oil(s). More preferably, composition D comprises one or more oil(s) selected from among the alkanes.

[0608] By "oil" is meant a liquid fat at room temperature (25 °C) and atmospheric pressure (760 mm Hg or 1.013 105 Pa).

[0609] The oil can be volatile or non-volatile.

[0610] The term "volatile oil" means an oil capable of evaporating upon contact with the skin in less than one hour at room temperature and atmospheric pressure. Volatile oil is a cosmetic oil that is volatile and liquid at room temperature. More precisely, a volatile oil has an evaporation rate between 0.01 and 200 mg / cm² / min, inclusive.

[0611] By "non-volatile oil" is meant an oil that remains on the skin or keratinous 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).

[0612] Preferably, the composition comprises one or more oil(s) selected from C6-Ci6 alkanes and / or mixtures thereof.

[0613] As regards C6-Ci6 alkanes, the latter can be linear, branched, possibly cyclic.

[0614] We can cite in particular C8-Ci6 branched alkanes such as C8-Ci6 iso-alkanes (also called isoparaffins), isododecane, isodecane, isohexadecane and for example the oils sold under the trade names of Isopars or Permetyls, and their mixtures.

[0615] One can also mention linear alkanes, preferably of plant origin, comprising 7 to 15 carbon atoms, in particular 9 to 14 carbon atoms, and more particularly 11 to 13 carbon atoms.

[0616] By way of example of a linear alkane suitable for the invention, 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.

[0617] We can also mention n-dodecane (C12) and n-tetradecane (C14) sold by Sasol respectively under the references PARAFOL 12-97 and PARAFOL 14-97, as well as their mixtures.

[0618] As an example 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 coconut or palm oil.

[0619] According to a particular embodiment, the composition comprises isododecane. Such a compound is, for example, isododecane sold under the reference ISO-DODECANE by INEOS.

[0620] Preferably, composition D comprises one or more oil(s) selected from C8-Ci6 alkanes, more preferably from isododecane, isohexadecane, tetradecane and / or mixtures thereof.

[0621] More preferably, composition D comprises isododecane.

[0622] Composition D may comprise one or more different oils from the compounds silicones comprising at least one carboxylic group present in a total quantity of between 30% and 99% by weight, preferably between 50% and 99% by weight, better between 70% and 99% by weight relative to the total weight of composition D.

[0623] Composition D may include at least one colouring agent selected from pigments, direct colorants, and mixtures thereof as described above. Protocol

[0624] Composition C and optional composition D described above can be used on dry or wet hair, as well as on all types of hair, light or dark, natural or colored, permed, bleached or straightened.

[0625] According to a preferred embodiment, composition C and optional composition D are applied simultaneously to the hair.

[0626] According to another preferred embodiment, composition D is applied to the hair after the application of composition C to the hair.

[0627] According to another preferred embodiment, composition D is applied to the hair before the application of composition C to the hair.

[0628] More preferably, composition D is applied to the hair after the application of composition C to the hair.

[0629] According to a particular embodiment of the invention, the hair is washed before application of composition C and composition D.

[0630] 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.

[0631] More preferably, a drying step is implemented after the application of composition C to the hair and before the application of any composition D to the hair.

[0632] Application to the hair can be carried out by any conventional means, in particular by means of a comb, a brush, a sponge or the fingers.

[0633] The application of composition C and optional composition D to the hair is generally carried out at room temperature (between 15 and 25°C).

[0634] After application of composition C to the hair, one can 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, the application of composition D to the hair or, for example, a washing, rinsing, wringing or drying step.

[0635] Preferably, there is no waiting time after the application of composition C to the hair and before the application of any composition D to the hair.

[0636] After the application of composition C and optional composition D, the hair may be left to dry or dried, for example at a temperature of 30 °C or higher.

[0637] The process according to the invention can thus include a step of applying heat to the keratin fibers using a heating tool.

[0638] The heat application step of the process of the invention can be carried out using a helmet, a hair dryer, a straightener or curling iron, a climazon...

[0639] Preferably, the heat application step of the process of the invention is carried out using a hair dryer.

[0640] When the process 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 optional composition D to the hair.

[0641] During the heat application stage on the hair, a mechanical action on the strands can be exerted such as combing, brushing, passing with fingers.

[0642] 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.

[0643] When the step of applying heat to the hair is carried out using a straightening iron, the temperature is preferably between 110 and 220°C, preferably between 140 and 200°C.

[0644] In a particular embodiment, the process of the invention implements a step (c1) 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 straightening or curling iron, preferably a straightening iron.

[0645] Step (cl) can be performed before step (c2).

[0646] During step (cl), also called the drying step, the hair can be dried, for example, at a temperature of 30°C or higher. In one particular embodiment, this temperature is higher than 40°C. In another particular embodiment, this temperature is higher than 45°C and lower than 110°C.

[0647] Preferably, if the hair is dried, it is dried not only with heat but also with an airflow. This airflow during drying helps to improve the individualization of the coating.

[0648] During drying, mechanical action on the strands can be exerted such as combing, brushing, passing with fingers.

[0649] During step (c2), the passage of the straightening or curling iron, preferably the straightening iron, may be carried out at a temperature ranging from 110 to 220°C, preferably between 140 and 200°C.

[0650] After the heating step, a shaping step can be implemented with, for example, a straightening iron; the temperature for the shaping step is between 110 and 220°C, preferably between 140 and 200°C.

[0651] Preferably, the invention is a hair coloring process comprising the following steps: (i) the application to the hair of at least one composition C comprising: - at least one (poly)carbodihnide compound as described above,

[0652] - at least one silicone acrylic copolymer as described above;

[0653] - at least one alkaline agent having a saturation vapor pressure at 20°C greater or equal to 2500 Pa; and - at least one coloring agent chosen from pigments, direct dyes, and their mixtures; then ii) optionally, a processing time of said composition C on the hair of 1 to 30 minutes, preferably 1 to 20 minutes; then iii) optionally a step of washing, rinsing, wringing or drying said hair, then

[0654] iv) optionally the application to the hair of at least one composition D comprising at least one silicone compound comprising at least one carboxyl group as described above; then (v) optionally, a processing time of said composition D on the hair of 1 to 30 minutes, preferably 1 to 20 minutes; then vi) optionally a step of washing, rinsing, wringing or drying the hair.

[0655] Preferably, composition C further comprises at least one amino silicone and / or at least one non-carboxylic anionic thickening agent, as described above.

[0656] Advantageously, the coloring process includes step iv) of applying to the hair a composition D comprising at least one silicone compound comprising at least one carboxylic group as described above.

[0657] Preferably, the step of applying composition C to the hair is repeated several times.

[0658] According to a preferred embodiment, the coloring process according to the invention is a hair coloring process consisting of mixing at least two compositions A and B extemporaneously at the time of use to obtain a composition C and applying composition C to the hair, with: - composition A comprising at least one (poly)carbodiimide compound as described above; - composition B comprising at least one silicone acrylic copolymer as described above, and at least one alkali agent having a saturated vapor pressure at 20°C greater than or equal to 2500 Pa as described above,

[0659] composition A and / or composition B comprising at least one colouring agent selected from pigments, direct dyes, and mixtures thereof; composition A and / or composition B optionally comprising at least one amino silicone as described above and / or at least one non-carboxylic anionic thickening agent as described above.

[0660] Advantageously, the coloring process further comprises 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 above, said composition D being applied to the hair before and / or after the application of composition C to the hair.

[0661] Preferably, composition B comprises at least one colouring agent selected from pigments, direct dyes, and mixtures thereof.

[0662] Preferably, composition A does not include at least one colouring agent selected from pigments, direct colorants, and mixtures thereof.

[0663] According to this embodiment, compositions A and B are mixed preferably less than 15 minutes before application to the hair, more preferably less than 10 minutes before application, better less than 5 minutes before application.

[0664] The weight ratio between composition A and composition B preferably ranges from 0.1 to 10, preferably from 0.2 to 5, better from 0.5 to 2, or even from 0.6 to 1.5. In a mode In particular implementation, the weight ratio between composition A and composition B is equal to 1.

[0665] According to a particular embodiment, the hair coloring process according to the invention is a hair coloring process consisting of mixing at least two compositions A and B extemporaneously at the time of use to obtain a composition C, and applying composition C to the hair, with: - composition A comprising at least one (poly)carbodiimide compound as described above; and - composition B comprising at least one silicone acrylic copolymer as described above, at least one alkaline agent having a saturated vapor pressure at 20°C greater than or equal to 2500 Pa as described above, and at least one colouring agent selected from pigments, direct dyes, and mixtures thereof; Composition A and / or composition B optionally comprising at least one amino silicone as described above and / or at least one non-carboxylic anionic thickening agent as described above, 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 above, said composition D being applied to the hair before and / or after the application of composition C to the hair.

[0666] Preferably, composition A optionally comprises at least one amino silicone as described above.

[0667] More preferably, composition A comprises at least one amino silicone as described above.

[0668] Preferably, composition A optionally comprises at least one non-carboxylic anionic thickening agent as described above.

[0669] More preferably, composition A comprises at least one non-carboxylic anionic thickening agent as described above.

[0670] Preferably, composition B does not comprise at least one amino silicone as described above.

[0671] Preferably, composition B does not include at least one non-carboxylic anionic thickening agent as previously described.

[0672] 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 from 0.5 to 20% by weight, even more preferably from 1 to 12% by weight relative to the total weight of composition A.

[0673] The total quantity of silicone acrylic copolymer(s) preferably ranges from 2 to 60% by weight, more preferably from 5 to 40% by weight, better from 5 to 20% by weight relative to the total weight of composition B.

[0674] The total quantity of alkali agent(s) having a saturated vapor pressure at 20°C greater than or equal to 2500 Pa as described above ranges from 0.01 to 20% by weight, preferably from 0.05 to 15% by weight, more preferably from 0.1 to 10% by weight relative to the total weight of composition B.

[0675] The amine silicone(s) may be present in a total quantity varying from 0.01% to 20%, preferably from 0.05% to 15%, more preferably from 0.1% to 10%, more preferably still from 0.5% to 5% by weight relative to the total weight of composition A.

[0676] The non-carboxylic anionic thickening agent(s) may be present in a total amount ranging from 0.01 to 20% by weight, preferably from 0.1 to 10% by weight, better from 0.1 to 5% by weight, and better still from 0.1 to 3% by weight, relative to the total weight of composition A. Multi-compartment device (kit)

[0677] The present invention also relates to a hair coloring device comprising one or more compartments containing: - in a first compartment, a composition C comprising: a) at least one (poly)carbodiimide compound as described above, b) at least one silicone acrylic copolymer as described above, c) at least one alkali agent having a saturated vapor pressure at 20°C greater than or equal to 2500 Pa as described above, and (d) at least one coloring agent selected from pigments, direct colorants, and mixtures thereof, and - optionally in a second compartment, a composition D comprising at least one silicone compound comprising at least one carboxylic group as described above.

[0678] The present invention also relates to a hair coloring device comprising several compartments containing: - in a first compartment, a composition A comprising: a) at least one (poly)carbodiimide compound as described above,

[0679] -in a second compartment, a composition B comprising: b) at least one silicone acrylic copolymer as described above,

[0680] and

[0681] c) at least one alkaline agent having a saturated vapor pressure at 20°C greater than or equal to 2500 Pa as described above, and

[0682] Composition A and / or Composition B comprising: (d) at least one coloring agent selected from pigments, direct colorants, and mixtures thereof, and - optionally in a third compartment, a composition D comprising at least one silicone compound comprising at least one carboxylic group as described above.

[0683] The present invention will now be described more specifically by means of examples, which are in no way limiting to the scope of the invention. However, the examples allow for the support of specific features, variants, and preferred embodiments of the invention. EXAMPLES

[0684] The (poly)carbodiimide(s) of the invention are accessible by synthetic methods known to those skilled in the art, from commercial products or from reagents synthesizable according to chemical reactions also known to those skilled in the art. Examples include the book *Sciences of Synthesis - Houben - Weyl Methods of Molecular Transformations*, 2005, Georg Thiem Verlag Kg, Rudigerstrasse 14, D-70469 Stuttgart, or US patent 4,284,730 or Canadian application CA 2,509,861.

[0685] More particularly, the process for preparing the (poly)carbodiimides of the invention uses, in a first step, a diisocyanate reagent (1): O=C=N-LrN=C=O (1), formula (1) in which Li is as defined previously which reacts in the presence of a carboimidation catalyst (2) such as those described in US 4,284,730, in particular phosphorus catalysts especially chosen from among phospholene oxides and phospholene sulfoxides, diaza and oxazaphospholanes, preferably under an inert atmosphere (nitrogen or Argon), and in particular in a polar solvent 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 give 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. Benzoyl halogen such as benzoyl chloride can be added to deactivate the catalyst.

[0686] To obtain "symmetrical" (poly)carbodiimides, in 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 above, to give 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.

[0687] To obtain "asymmetric" (poly)carbodiimides, in 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 reagent HEH with Rb Xi and E as defined previously, to give compound (5): R1-X1-C(O)-NH-L1-(N=C=N-L1)n-NH-C(O)-EH (5), formula (5) in which Rh Xb Lb n, and E are as defined previously.

[0688] According to one variant for obtaining compound (5) from (3) it is possible to add first 1 eq. of reagent Ri-XrH, then 0.5 eq. of reagent HEH.

[0689] 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'),

[0690] 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 give rise 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),

[0691] Formula (7) in which Rb Xb Lb R2, X2, n, z and E are as defined previously.

[0692] 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 give the compound (8): H-[EC(O)-NH-L1-(N=C=N-L1)z]w-NH-C(O)-X2-R2(8),

[0693] formula (8) in which Lb R2, X2, z and E are as defined previously, and w is an integer from 1 to 3, more preferably w = 1.

[0694] 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 lead to the (poly)carbodihnide 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 such as defined previously.

[0695] (Poly)carbodihnide compounds, as well as all reaction intermediates and reactants, 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.

[0696] Example 1: Process for the synthesis of the (poly)carbodiimide compound

[0697] In a 500 mL three-necked flask equipped with a thermometer, a stirrer and a tube at reflux, 50 g of dicyclohexylmethane 4,4'-düsocyanate and 0.5 g of 4,5-Dihydro-3-methyl-1-phenyl-1H-phosphole 1-oxide was introduced with stirring.

[0698] The reaction mixture was heated to 140°C under nitrogen for 4 hours, monitoring the reaction by infrared spectroscopy through the absorption of isocyanate groups between 2200 and 2300 cm1, and then cooled to 120°C.

[0699] 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 while stirring. The temperature of 120°C is maintained until the complete disappearance of the isocyanate groups, monitored by infrared spectroscopy at 2200-2300 cm1, and then cooled to room temperature.

[0700] After cooling to room temperature, the reaction mixture is poured dropwise under vigorous stirring into a 500 mL glass beaker containing 85 g of distilled water to produce the desired product in the form of a translucent yellow liquid. Example 2

[0701] Compositions A, Bl, B2, B3, B4 and B5 as described below were prepared: quantities are expressed in g of raw material as is / 100g, unless otherwise stated.

[0702] [Tables 1] Composition A Polycarbodiimide (1) 24 Hydroxyethyl acrylate / sodium acryloyldimethyl taurate copolymer (2) 1 Amodimethicone (and) Trideceth-5 (and) Trideceth-10 (3) 5 Preservative(s) qs Water qsp 100

[0703] (1) synthesized according to the synthesis process described in Example 1 (at 40% of material active in water),

[0704] (2) sold by the company SEPPIC under the name SEPINOV EMT10 (90% of active ingredient), (3) sold by the company WACKER under the name BELSIL ADM LOG 1 (with 15% active ingredient)

[0705] [Tables2] Compositions Bl B2 B3 B4 B5 Crotonic Acid / Vinyl C8-12 Isoalkyl Esters / VA / Bis-Vinyldimethicone Crosspolymer(4) 24 24 24 24 24 Red Iron Oxide (CI 77491) 12 12 12 12 12 Monoethanolamine Qs pH 10 - - - - Sodium Sodium hydroxide - Qs pH 10 - - - Ammonia (20% as NH3) - - Qs pH 10 - - Dimethylamine - - - Qs pH 10 - Ammonium Carbonate - - - - Qs pH 10 Ethanol Qsp 100 Qsp 100 Qsp 100 Qsp 100 Qsp 100

[0706] (4) sold by Wacker Chemie AG under the trade name Belsil® PI 101 (with 50% active ingredient in ethanol).

[0707] Five mixtures are then made. Composition A was mixed with each of compositions Bl, B2, B3, B4 and B5 at a mass ratio of 50 / 50 to obtain five compositions Cl, C2, C3, C4 and C5.

[0708] Monoethanolamine and sodium hydroxide are not alkali metals having a saturated vapor pressure at 20°C greater than or equal to 2500 Pa. Ammonia (20% NH3), dimethylamine and ammonium carbonate are alkali metals having a saturated vapor pressure at 20°C greater than or equal to 2500 Pa.

[0709] Thus, the processes using compositions C1 and C2 are comparative processes. The processes using compositions C3, C4 and C5 are processes according to the invention.

[0710] Then, composition D as described below was prepared: quantities are expressed in g of raw material as is / 100g.

[0711] [Tables3] Composition: Bis-carboxydecyl dimethicone (5) 2 Isododecane q.s. 100

[0712] (5) Silform INX sold by Momentive Performance Materials Protocol

[0713] Each of the compositions Cl to C5 is applied to strands of dry, natural hair that is 90% white, at a rate of 0.8g of composition per gram of strand. The hair strands are then detangled and dried with a hairdryer on medium heat, and then combed.

[0714] Then, composition D is applied to said strands of hair previously treated with compositions Cl, C2, C3, C4 and C5, respectively, at a rate of 0.5g of composition per gram of strand.

[0715] The hair strands are then detangled and dried using a medium heat hair dryer, then stored at a temperature of 22°C and a humidity of 35% for 24 hours.

[0716] The hair strands thus colored are then subjected to a test of several repeated shampoos in order to evaluate the tenacity (residual effect) of the color obtained after shampooing, according to the shampooing protocol described below. Shampooing protocol:

[0717] 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 squeezed dry between two fingers.

[0718] 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 massaging the strands of hair along their length (6 passes) for 15 seconds, from root to tip.

[0719] The strands of hair are then placed in a watch glass and left to rest for 1 minute.

[0720] Next, the hair strands are rinsed with water by passing the strand between the fingers (15 passes). The hair strands are then squeezed dry between two fingers before the next shampoo.

[0721] Once the tests of several shampoos have been carried out, the strands of hair are combed and dried with a hairdryer. Results

[0722] The color retention of the highlights was evaluated in the CIE L*a*b* system, using a Minolta Spectrophotometer CM3600A colorimeter (illuminant D65, angle 10°, specular component included).

[0723] In this L*a*b* system, L* represents the intensity of the color, a* indicates the green / red color axis and b* the blue / yellow color axis.

[0724] The permanence of the color is assessed by the color difference AE between the colored strands before shampooing, and then after 5 shampoos according to the protocol described above. The lower the AE value, the more the color remains after shampooing.

[0725] The value of AE is calculated according to the following equation: ■ L,. V' + SA - + Cfc* - A T'

[0726] In this equation, L*a*b* represent the values ​​measured after hair coloring and after shampooing, and Lo*ao*bo* represent the values ​​measured after hair coloring but before shampooing.

[0727] [Tables4] Processes Number of shampoos L* a* b* AE Cl + D (comparative) 0 34.5 27.5 21.2 - 5 65.6 0.8 15.5 41.4 C2 + D (comparative) 0 33.8 26.5 20.6 - 5 60.8 2.5 14.2 36.7 C3 + D (invention) 0 33.6 27.4 21.4 - 5 36.5 27.7 21.3 2.9 C4 + D (invention) 0 34.3 29.1 22.7 - 5 38.5 25.2 19.5 6.6 C5 + D (invention) 0 35.1 27.8 22.0 - 5 38.7 24.1 19.1 5.9

[0728] Hair strands treated with the processes according to the invention and washed with five shampoos exhibit lower AE values ​​than those of hair strands treated with the comparative process.

[0729] Thus, the coloured coating obtained with the processes according to the invention exhibits improved shampoo resistance.

Claims

Demands

1. A hair coloring process comprising the application to the hair of at least one composition C comprising: - at least one (poly)carbodiimide compound chosen from the compounds with the following formula (II): (II), in which - Xi and X2 represent, independently, an oxygen atom O, a sulfur atom S or an NH group; - Ri and R2 independently represent a hydrocarbon radical possibly interrupted by one or more heteroatom(s); - n and z denote an integer from 1 to 20, with n+z > 2 and w denotes an integer from 1 to 3; - Li independently represents a divalent aliphatic hydrocarbon radical in CrCi8, a cycloalkylene radical in C3-Ci5, a heterocycloalkylene group in C3-Ci2, or an arylene group in C6-Ci4, and their mixtures; - E independently represents a grouping 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 possibly interrupted by one or more heteroatom(s); - R5 independently represents a covalent bond or a divalent saturated hydrocarbon radical, possibly interrupted by one or more heteroatom(s); - R6 independently represents a hydrogen atom, or a hydrocarbon radical possibly interrupted by one or more heteroatom(s); - at least one silicone acrylic copolymer; - at least one alkali agent having a saturated vapor pressure at 20°C greater than or equal to 2500 Pa; and - at least one colouring agent chosen from pigments, direct dyes, and their mixtures.

2. A process according to claim 1, characterized in that the (poly)carbodiimide compound(s) is / are selected from compounds of formula (II) in which: - Xi and X2 independently represent an oxygen atom; - Ri and R2 are selected independently from dialkylaminoalcohols, alkyl esters of hydroxycarboxylic acid and monoalkyl ethers of (poly)alkylene glycol, in which a hydroxy group has been removed, and mixtures thereof; - n and z denote an integer from 1 to 20, with n+z > 2 and w equals 1; - L1 is selected from a divalent aliphatic hydrocarbon radical in C1-C18, a cycloalkylene radical in C3-C15, a heterocycloalkylene group in C3-C12, or an arylene group in C6-C14, and mixtures thereof; - E independently represents a grouping chosen from: - -O-R3-O-; -S-R4-S-; -R5-N(R6)-R4-N(R6)-R5-;in which R3 and R4 are chosen independently from a C6-Ci4 arylene radical, a C3-Ci2 cycloalkylene radical, a linear or branched CrCi8 alkylene radical, possibly interrupted by one or more heteroatoms, 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, possibly 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 Ci-Ci8 alkylene radical, possibly interrupted by one or more heteroatoms, and mixtures thereof.

3. A method according to claim 1 or 2, characterized in that the (poly)carbodiimide compound(s) is / are selected 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-Ci5 cycloalkylene radical; - E independently represents a grouping chosen from: -O-R3-O-; -S-R4-S-; -R5-N(R6)-R4-N(R6)-R5-; in which R3 and R4 are chosen independently from a C6-Ci4 arylene radical, a C3-Ci2 cycloalkylene radical, a linear or branched CrCi8 alkylene radical, possibly 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, possibly 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, possibly interrupted by one or more heteroatom(s), and mixtures thereof.

4. A method according to any one of claims 1 to 3, characterized in that the (poly)carbodiimide compound(s) is / are selected from the compounds of formula (II) in which: - Xi and X2 independently represent an oxygen atom; - Ri and R2 independently represent the compound with the following formula (VI): R13-[O-CH2-C(H)(R14)]q- (VI), in which R13 represents a CrC4 alkyl group or a phenyl, preferably a CrC4 alkyl group, more preferably a methyl, R14 represents a hydrogen atom or a Ci-C4 alkyl group, preferably a hydrogen atom and q denotes an integer 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, and - E represents a grouping -O-R3-O- in which R3 is chosen from an arylene radical in C6-Ci4, a cycloalkylene radical in C3-Ci2, a linear or branched alkylene radical in CrCi8, possibly interrupted by one or more heteroatom(s), and mixtures thereof.

5. A process according to any one of claims 1 to 4, characterized in that the (poly)carbodiimide compound(s) is / are selected from the compounds of formula (II) in which: - Xi and X2 independently represent an oxygen atom; - Ri and R2 independently represent the compound of the following formula (VI): R13-[O-CH2-C(H)(R14)]q- (VI), in which Rn represents a CrC4 alkyl group or a phenyl group, preferably a CrC4 alkyl group, more preferably a methyl group, R14 represents a hydrogen atom or a C1-C4 alkyl group, preferably a hydrogen atom, and q denotes an integer from 4 to 30; - n and z denote an integer 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 CrCi8 branched alkylene radical such as methylene, propylene, butylene, ethylene, possibly interrupted by one or more heteroatom(s).;

6. A process according to any one of claims 1 to 5, characterized in that the (poly)carbodiimide compound(s) is / are selected from the compounds of the following formula (XII): (XII), in which Li is 4,4-dicyclohexylene methane, n and z denote an integer from 2 to 20, with n+z ranging from 4 to 10, E represents a -O-R3-O- group in which R3 represents a linear or Ci-Ci8 branched alkylene radical such as methylene, propylene, butylene ethylene, possibly interrupted by one or more heteroatom(s), and r and s denote an integer from 4 to 30.

7. A process according to any one of the preceding claims, characterized in that the total amount 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 from 1 to 6% by weight relative to the total weight of composition C.

8. A process 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 motif; - at least one polydimethylsiloxane motif.

9. A process according to any one of the preceding claims, characterized in that the silicone acrylic copolymer(s) comprise: - at least one crotonic motif and at least one motif selected from a alkyl crotonate motif, the alkyl radical being a linear or branched, saturated radical containing from 1 to 20 carbon atoms; a vinyl acetate motif; a vinyl alkyl ester motif, 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 motif.

10. A process according to any one of the preceding claims, characterized in that the silicone acrylic copolymer(s) comprise: - at least one crotonic motif, at least one vinylacetate motif and at least one vinyl alkyl ester motif, 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 motif comprising at least one polymerizable radical group including a vinyl group.

11. A process according to any one of the preceding claims, characterized in that the total amount 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 from 2 to 10% by weight relative to the total weight of composition C.

12. A process according to any one of the preceding claims, characterized in that the alkali agent(s) have a saturated vapor pressure at 20°C greater than or equal to 3000 Pa, preferably greater than or equal to 4000 Pa, preferably greater than or equal to 5000 Pa.

13. A process according to any one of the preceding claims, characterized in that the alkali agent(s) having a saturated vapor pressure at 20°C greater than or equal to 2500 Pa are selected from ammonia, dimethylamine, ammonium carbonate, ammonium hydrogen carbonate and mixtures thereof, preferably from ammonia, dimethylamine, ammonium carbonate and mixtures thereof.

14. A process according to any one of the preceding claims, characterized in that the total quantity of alkali agent(s) with a saturated vapor pressure at 20°C greater than or equal to 2500 Pa ranges from 0.01 to 20% by weight, preferably from 0.05 to 15% by weight, more preferably from 0.1 to 10% by weight, better from 0.5 to 5% by weight relative to the total weight of composition C.

15. A method according to any one of the preceding claims, characterized in that it further comprises a step of applying to the hair a composition D comprising at least one silicone compound comprising at least one carboxylic group.

16. A process according to claim 15, characterized in that composition D further comprises one or more oil(s) different from silicone compounds comprising at least one carboxylic group, preferably chosen from C8-Ci6 alkanes, more preferably from isododecane, isohexadecane, tetradecane and / or mixtures thereof.

17. A method according to any one of claims 1 to 14, characterized in that it consists of extemporaneously mixing 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 at least one (poly)carbodiimide compound as defined in any one of claims 1 to 6; - composition B comprising at least one silicone acrylic copolymer as defined in any one of claims 1 and 8 to 10, and at least one alkaline agent as defined in any one of claims 1 and 12 to 13, composition A and / or composition B comprising at least one coloring agent selected from pigments, direct dyes, and mixtures thereof.

18. A hair coloring device comprising several compartments containing: - in a first compartment, a composition A comprising: a) at least one (poly)carbodiimide compound as defined in any one of claims 1 to 6; - in a second compartment, a composition B comprising: b) at least one silicone acrylic copolymer as defined in any one of claims 1 and 8 to 10, and c) at least one alkaline agent as defined in any one of claims 1 and 12 to 13; composition A and / or composition B comprising: d) at least one coloring agent selected from pigments, direct dyes, and mixtures thereof, and - optionally in a third compartment, a composition D comprising at least one silicone compound comprising at least one carboxylic group as defined in claim 15.