FR3098112A1 - Cosmetic composition comprising silicones containing a carboxylic group and anionic direct dyes, and method of cosmetic treatment - Google Patents

Abstract

The present invention relates to a cosmetic composition, in particular for hair, comprising silicones containing a carboxylic group, and anionic direct dyes. The composition provides improved coloring, as well as color wash protection for artificially colored hair. The invention also relates to a process for cosmetic treatment of the hair using said composition.

Description

Cosmetic composition comprising silicones containing a carboxylic group and anionic direct dyes, and method of cosmetic treatment

The present invention relates to a cosmetic composition, in particular for the hair, comprising the combination of a carboxylic silicone and acid dyes, as well as a method for implementing said composition, in particular for providing conditioning to the hair and improving the rise of the colour.

For a long time, many people have been looking to change the color of their hair, and in particular to hide their white hair.

It is in particular known to dye keratin fibres, in particular human keratin fibres, with dye compositions containing oxidation dye precursors, generally called oxidation bases. These oxidation bases are colorless or weakly colored compounds which, associated with oxidizing products, can give rise by a process of oxidative condensation to colored compounds. The shades obtained with these oxidation bases can be modified by combining them with couplers or color modifiers. The variety of molecules involved in the oxidation bases and couplers makes it possible to obtain a rich palette of colors.

Another well-known method consists in obtaining so-called semi-permanent colorations by applying direct dyes, which are colored and coloring molecules having an affinity for said fibers, to the keratin fibers. The direct dyes conventionally employed are chosen from nitrobenzene, anthraquinone, nitropyridine, azo, xanthene, acridine, azine or triarylmethane direct dyes. The chemical species can be nonionic, anionic (acid dyes) or cationic (basic dyes). Direct dyes can also be natural dyes.

Conventional direct dyeing processes consist in applying to the keratin fibres, dye compositions comprising direct dyes. After application, a pause time is observed in order to let the coloring molecules penetrate by diffusion inside the fibres. At the end of the process, the fibers are rinsed. The resulting colorations are generally chromatic but are however only semi-temporary. The nature of the interactions which link the direct dyes to the keratinous fibres, as well as their desorption from the surface and/or from the core of the fibre, are responsible for their low dyeing power.

Thus, there is a real need to have compositions for the direct dyeing of keratin fibres, in particular human keratin fibers such as the hair, which do not have the drawbacks mentioned above, and which in particular make it possible to produce dyes with better properties, in particular with regard to their chromaticity, their power, their intensity and their selectivity; in particular, a more powerful coloration and/or having an improved dye (or color) build-up.

It is also known to those skilled in the art that, unlike oxidative dyes, direct dyeing processes tend to better protect the integrity of keratin fibres. However, it would be desirable to have coloring compositions which make it possible to bring even more conditioning to said fibers, in particular in terms of smooth feel and flexibility.

Hair care compositions of the conditioner type are known, comprising fatty alcohols, anionic surfactants and direct dyes, in particular anionic direct dyes. These compositions make it possible to revive the color of the hair of the users.

However, the level of care provided by these compositions could be improved, for example by incorporating silicone compounds; but it has been found that the addition of certain silicones, in particular amino silicone, in these hair care compositions, can adversely affect the stability of the compositions (a possible explanation being the precipitation of the silicone).

The applicant has now discovered that the use of particular anionic silicone, in combination with anionic direct dyes, makes it possible to obtain a composition leading to very good cosmetic properties and in particular providing smoothing, softness and suppleness to the hair, in particular to sensitized hair, while also leading to very good dyeing properties, in particular in terms of strength and/or color build-up.

The subject of the invention is therefore a cosmetic composition, in particular for the hair, comprising:

- one or more silicones containing a carboxylic group, and

- one or more anionic direct dyes.

It has been found that the rise of the dyes is improved when the compositions according to the invention are used; in addition, these compositions also provide color washout protection for artificially colored hair.

Furthermore, the cosmetic properties of the hair are also improved.

Other characteristics and advantages of the invention will appear more clearly on reading the description and the examples which follow.

In what follows, and unless otherwise indicated, the limits of a range of values are included in this range, in particular in the expressions "between" and "ranging from ... to ...", these expressions being equivalent meaning and therefore interchangeable.

Furthermore, the expression “at least one” used in the present description is equivalent to the expression “one or more”.

1/ Carboxylic silicone

The cosmetic composition according to the invention therefore comprises one or more silicones containing a carboxylic group.

We hear by "carboxylic group» a functional group -COOH or -COO^-, the counterion of the -COO group^-being a cosmetically acceptable counterion which can preferably be chosen from alkali metals or alkaline earth metals, and quaternary ammonium groups.

The carboxylic group will be denoted hereinafter COOM, with M chosen from H and cosmetically acceptable counterions, such as alkali metals or alkaline earth metals, and quaternary ammonium groups, for example NR′3, with identical or different R′, representing independently of each other H or C1-C4 alkyl.

Said silicones may comprise one or more carboxylic groups.

The silicones that can be used can be in the form of oil, wax, resin or gum; silicone oils and gums are preferred.

Preferably, the silicone(s) containing a carboxylic group are chosen from the organosiloxanes of formula (I) below:

in which :

- R1 represent, independently of one another, an alkyl group having from 1 to 20 carbon atoms, preferably from 1 to 10 carbon atoms; an alkoxy group having 1 to 20 carbon atoms; or an aryl group having 6 to 12 carbon atoms;

- R2 represents:

a group -R4-COOM with R4 representing a linear or branched alkylene group, having from 1 to 20 carbon atoms, preferably from 4 to 16 carbon atoms and M representing H or a cosmetically acceptable counterion;

a pyrrolidone radical comprising a carboxylic group COOH; Or

a -R _a -(OR _b ) _x -COOM group with R _a representing a linear or branched alkylene group having from 1 to 4 carbon atoms, R _b representing an alkylene group having from 1 to 4 carbon atoms; x being an integer ranging from 1 to 200; and M representing H or a cosmetically acceptable counterion;

- R3 represent independently of each other,

an alkyl group having 1 to 20 carbon atoms;

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 and M representing H or a cosmetically acceptable counterion;

an alkoxy group having 1 to 20 carbon atoms;

an aryl group having 6 to 12 carbon atoms; Or

a -R _a -(OR _b ) _x -COOM group with R _a representing a linear or branched alkylene group having from 1 to 4 carbon atoms, R _b representing an alkylene group having from 1 to 4 carbon atoms; x being an integer ranging from 1 to 200; and M representing H or a cosmetically acceptable counterion;

- 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 at least one carboxylic group COOM, preferably at least one group COOH.

In particular, the silicones comprising at least one carboxylic group can be chosen from, alone or as a mixture:

a/ the organosiloxanes of formula (II) below:

in which :

- R1 represent, independently of each other, 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; preferentially methyl;

- R4 represents, independently of one another, a linear or branched alkylene group having from 1 to 20 carbon atoms, preferably from 4 to 16 carbon atoms; or else 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 a whole number ranging from 1 to 200;

- M represents, independently of one another, a hydrogen atom or a cosmetically acceptable counter-ion, in particular an alkali or alkaline-earth metal or a quaternary ammonium, in particular NR'3, with identical or different R', representing H or C1-C4 alkyl;

- n designates an integer ranging from 1 to 1000.

Preferably, the organosilanes of formula (II) comprise at least one COOH group, better still at least two COOH groups, even better still two COOH groups.

b/ the organosiloxanes of formula (III) below:

in which :

- R1 represent, independently of each other, an alkyl group having from 1 to 10 carbon atoms, preferably from 1 to 6 carbon atoms, more preferably a methyl;

- R4 represents a linear or branched alkylene group having 1 to 20 carbon atoms, preferably 4 to 16 carbon atoms; or else 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 a whole number ranging from 1 to 200;

- M represents, independently of one another, a hydrogen atom or a cosmetically acceptable counter-ion, in particular an alkali or alkaline-earth metal or a quaternary ammonium, in particular NR'3, with identical or different R', representing H or C1-C4 alkyl;

- p denotes an integer ranging from 1 to 1000;

- n denotes an integer ranging from 1 to 1000.

Preferably, the organosilanes of formula (III) comprise at least one COOH group.

c/ the organosiloxanes of the following formula (IV):

in which :

- R1 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; preferentially methyl;

- R4 represents a linear or branched alkylene group having 1 to 20 carbon atoms, preferably 4 to 16 carbon atoms; or else 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 a whole number ranging from 1 to 200;

- R3 represents an alkyl group having 1 to 20 carbon atoms; an alkoxy group having 1 to 20 carbon atoms or an aryl group having 6 to 12 carbon atoms;

- M represents, independently of one another, a hydrogen atom or a cosmetically acceptable counter-ion, in particular an alkali or alkaline-earth metal or a quaternary ammonium, in particular NR'3, with identical or different R', representing H or C1-C4 alkyl;

- n designates an integer ranging from 1 to 1000.

Preferably, the organosilanes of formula (IV) comprise at least one COOH group, better still a single COOH group.

d/ the organosiloxanes of the following formula (V):

in which :

- R8 represents an alkyl group having 1 to 6 carbon atoms, preferably a methyl;

- m denotes an integer ranging from 1 to 1000; And

- n designates an integer ranging from 1 to 1000.

Among the organosiloxanes of formula (II), mention may be made of polydimethylsiloxanes (PDMS) with a carboxyl terminal function such as the compounds sold by the company Momentive under the trade name SILFORM INX (INCI name: Bis-Carboxydecyl dimethicone).

Among the organosiloxanes of formula (III), mention may be made of polydimethylsiloxanes (PDMS) with a pendent carboxylic function such as the compounds sold by the company Shin Etsu under the trade name X-22-3701E.

Among the organosiloxanes of formula (IV), mention may be made of polydimethylsiloxanes (PDMS) with a carboxyl terminal function such as the compounds sold by the company Shin Etsu under the trade name X-22-3710.

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

The silicones comprising a carboxylic group can for example correspond to the compounds described in patent application EP186507 in the name of Chisso Corporation.

The silicones comprising at least one carboxylic group preferably have a weight-average molecular weight (Mw) of between 1,000 and 100,000 g/mol, in particular between 5,000 and 50,000 g/mol, or even between 8,000 and 30,000 g/mol, even better between 10000 and 20000 g/mol.

Preferably, the silicone(s) comprising at least one carboxylic group are chosen from the organopolysiloxanes of formula (II), in particular those corresponding to the following formula (IIa):

in which :

- R1 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; preferentially methyl; even better, all the R1 are identical and represent a methyl radical;

- R4 independently represents a linear or branched alkylene group, having from 1 to 20 carbon atoms, preferably from 4 to 16 carbon atoms, better still from 6 to 14 carbon atoms, or even from 8 to 12 carbon atoms; preferably, the R4 are identical;

- n designates an integer ranging from 1 to 1000.

Preferably, the cosmetic composition according to the invention comprises the silicone(s) containing a carboxylic group in a total amount ranging from 0.01 to 10% by weight, preferably from 0.1 to 8% by weight, in particular from 0.2 to 5% by weight, even better from 0.3 to 3% by weight, or even from 0.4 to 2% by weight, even better from 0.5 to 1.5% by weight, relative to the total weight of the cosmetic composition.

Preferably, the cosmetic composition according to the invention comprises the silicone(s) containing a carboxylic group of formula (II) in a total amount ranging from 0.01 to 10% by weight, preferably from 0.1 to 8% by weight, in particular from 0.2 to 5% by weight, even better from 0.3 to 3% by weight, even from 0.4 to 2% by weight, even better from 0.5 to 1.5% by weight, relative to the total weight of the cosmetic composition.

2/ Anionic direct dyes

The composition according to the invention comprises one or more anionic direct dyes.

By “direct dye”, we mean natural and/or synthetic dyes, different from oxidation dyes. These are dyes that will diffuse superficially on the fiber.

The anionic direct dyes of the invention are dyes commonly called "acid dyes" or "acid dyes" for their affinity with alkaline substances (see for example "Industrial Dyes, Chemistry, Properties, Application", Klaus Hunger Ed. VCH Verlag GmbH & CoKGaA, Weinheim 2003). Acidic or anionic dyes are known in the literature (see for example "Ullman's Encyclopedia of Industrial Chemistry", Azo Dyes, 2005 Wiley-VCH Verlag GmbH & Co. KGaA, Weinheim 10.1002/14356007.a03 245, point 3.2; ibid, Textile Auxiliaries, 2002 Wiley-VCH Verlag GmbH & Co. KGaA, Weinheim 10.1002/14356007.a26 227 and "Ashford's Dictionary of Industrial Chemicals, Second Edition, p. 14-p. 39, 2001).

By anionic direct dyes is meant any direct dye comprising in its structure at least one sulphonic group SO ₃ H, or sulphonate SO ₃ ^- and/or at least one carboxylic group COOH or carboxylate COO ^- and optionally one or more anionic groups G ^- with G ^- , identical or different, representing an anionic group chosen from alcoholate O ^- , thiolate S ^- , thiocarboxylate C(Q)Q'- with Q and Q' identical or different representing an oxygen or sulfur atom, the at least one representing a sulfur.

The preferred anionic direct dyes are chosen from acid nitro direct dyes, acid azo dyes, acid azine dyes, acid triarylmethane dyes, acid indoamine dyes, acid anthraquinone dyes, indigoids, acid natural dyes and mixtures thereof, each of these dyes having at least one sulphonate or carboxylate group.

As anionic dyes according to the invention, mention may be made of the dyes of formulas (II), (II'), (III), (III'), (IV), (IV'), (V), (V' ), (VI), (VII), (VIII) and (IX):

a) diaryl anionic azo dyes of formula (II) or (II')

• R₇, R₈, R₉, R₁₀, R’₇, R’₈, R’₉et R’₁₀, identiques ou différents, représentent un atome d'hydrogène ou un groupe choisi parmi :

• alkyle ;
• alkoxy, alkylthio ;
• hydroxy, mercapto ;
• nitro,
• R°-C(X)-X’-, R°-X’-C(X)-, R°-X’-C(X)-X’’- avec R° représentant un atome d’hydrogène, un groupe alkyle ou aryle ; X, X’ et X’’, identiques ou différents, représentant un atome d’oxygène, de soufre ou NR avec R représentant un atome d’hydrogène ou un groupe alkyle ;
• (O)₂S(O^-)-M⁺, avec M⁺représentant un contre ion cationique tel que de métal alcalin (Na, K) ou de métal alcalino-terreux (Ca) ;
• (O)CO^--M⁺, avec M⁺tel que défini précédemment ;
• R’’-S(O)₂ ^-, avec R’’ représentant un atome d’hydrogène, un groupe alkyle, un groupe aryle, (di)(alkyl)amino, aryl(alkyl)amino ; préférentiellement un groupe phénylamino ou phényle ;
• R’’’-S(O)₂-X’- avec R’’’ représentant un groupe alkyle, aryle éventuellement substitué, X’ tel que défini précédemment ;
• (di)(alkyl)amino ;
• aryl(alkyl)amino éventuellement substitué par un ou plusieurs groupes choisis parmi i) nitro ; ii) nitroso ; iii) (O)₂S(O^-)-M⁺et iv) alkoxy, avec M⁺tel que définis précédemment ;
• hétéroaryle éventuellement substitué ; préférentiellement un groupe benzothiazolyle ;
• cycloalkyle ; notamment cyclohexyle,
• Ar-N=N- avec Ar représentant un groupe aryle éventuellement substitué ; préférentiellement un phényle éventuellement substitué par un ou plusieurs groupes alkyle, (O)₂S(O^-)-M⁺ou phénylamino;
• ou alors deux groupes contigus R₇avec R₈ou R₈avec R₉ou R₉avec R₁₀forment ensemble un groupe fusionné benzo A’ ; et R’₇avec R’₈ou R’₈avec R’₉ou R’₉avec R’₁₀forment ensemble un groupe fusionné benzo B’ ; avec A’ et B’ éventuellement substitués par un ou plusieurs groupes choisi parmi i) nitro ; ii) nitroso ; iii) (O)₂S(O^-)-M⁺; iv) hydroxy ; v) mercapto ; vi) (di)(alkyl)amino ; vii) R°-C(X)-X’- ; viii) R°-X’-C(X)- ; ix) R°-X’-C(X)-X’’- ; x) Ar-N=N- et xi) aryl(alkyl)amino éventuellement substitué; avec M⁺, R°, X, X’, X’’ et Ar tels que définis précédemment ;

• W représente une liaison sigma s, un atome d'oxygène, de soufre, ou un radical divalent i) –NR- avec R tel que défini précédemment, ou ii) méthylène -C(R_a)(R_b)- avec R_aet R_bidentiques ou différents, représentant un atome d’hydrogène ou un groupe aryle, ou alors R_aet R_bforment ensemble avec l’atome de carbone qui les porte un cycloalkyle spiro ; préférentiellement W représente un atome de soufre ou R_aet R_bforment ensemble un cyclohexyle ;

in which,

• R ₇ , R ₈ , R ₉ , R ₁₀ , R' ₇ , R' ₈ , R' ₉ and R' ₁₀ , which are identical or different, represent a hydrogen atom or a group chosen from:

• alkyl;
• alkoxy, alkylthio;
• hydroxy, mercapto;
• nitro,
• R°-C(X)-X'-, R°-X'-C(X)-, R°-X'-C(X)-X''- with R° representing a hydrogen atom, a 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;
• (O) ₂ S(O ^- )-M ⁺ , with M ⁺ representing a cationic counter ion such as an alkali metal (Na, K) or an alkaline-earth metal (Ca);
• (O)CO ^- -M ⁺ , with M ⁺ as defined above;
• R''-S(O) ₂ ^- , with R'' representing a hydrogen atom, an alkyl group, an aryl group, (di)(alkyl)amino, aryl(alkyl)amino; preferably a phenylamino or phenyl group;
• R'''-S(O) ₂ -X'- with R''' representing an optionally substituted alkyl or aryl group, X' as defined above;
• (di)(alkyl)amino;
• aryl(alkyl)amino optionally substituted with one or more groups chosen from i) nitro; ii) nitroso; iii) (O) ₂ S(O ^- )-M ⁺ and iv) alkoxy, with M ⁺ as defined previously;
• optionally substituted heteroaryl; preferably a benzothiazolyl group;
• cycloalkyl; in particular cyclohexyl,
• Ar-N=N- with Ar representing an optionally substituted aryl group; preferably a phenyl optionally substituted by one or more alkyl, (O) ₂ S(O ^- ) -M ⁺ or phenylamino groups;
• or two contiguous groups R ₇ with R ₈ or R ₈ with R ₉ or R ₉ with R ₁₀ together form a fused group benzo A'; and R' ₇ with R' ₈ or R' ₈ with R' ₉ or R' ₉ with R' ₁₀ together form a fused benzo group B'; with A' and B' optionally substituted by one or more groups chosen from i) nitro; ii) nitroso; iii) (O) 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''-; x) Ar-N=N- and xi) optionally substituted aryl(alkyl)amino; with M ⁺ , R°, X, X', X'' and Ar as defined above;

• W represents a sigma s bond, an oxygen or sulfur atom, or a divalent radical i) –NR- with R as previously defined, or ii) methylene -C(R _a )(R _b )- with R _a and R _b which are identical or different, representing a hydrogen atom or an aryl group, or else R _a and R _b together with the carbon atom which bears them form a spiro cycloalkyl; preferably W represents a sulfur atom or R _a and R _b together form a cyclohexyl;

it being understood that formulas (II) and (II') comprise at least one sulfonate (O) ₂ S(O ^- )-M ⁺ or carboxylate (O)C(O ^- )-M ⁺ radical on one of the rings A, A', B, B' or C with M ⁺ as previously defined.

As examples of dyes of formula (II), mention may be made of Acid Red 1, Acid Red 4, Acid Red 13, Acid Red 14, Acid Red 18, Acid Red 27, Acid Red 32, Acid Red 33, Acid Red 35, Acid Red 37, Acid Red 40, Acid Red 41, Acid Red 42, Acid Red 44, 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, 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.

As examples of dyes of formula (II'), mention may be made of Acid Red 111, Acid Red 134, Acid yellow 38.

b) the anionic azo dyes pyrrazolone of formula (III) and (III')

• R₁₁, R₁₂et R₁₃, identiques ou différents, représentent un atome d'hydrogène, d’halogène, un groupe alkyle ou -(O)₂S(O^-), M⁺avec M⁺tel que défini précédemment ;
• R₁₄représente un atome d’hydrogène, un groupe alkyle ou un groupe -C(O)O^-, M⁺avec M⁺tel que défini précédemment ;
• R₁₅représente un atome d’hydrogène ;
• R₁₆représente un groupe oxo auquel cas R’₁₆est absent, ou alors R₁₅avec R₁₆forment ensemble une double liaison ;
• R₁₇et R₁₈, identiques ou différents, représentent un atome d’hydrogène, ou un groupe choisi parmi :

• (O)₂S(O^-), M⁺avec M⁺tel que défini précédemment ;
• Ar-O-S(O)₂ ^-avec Ar représentant un groupe aryle éventuellement substitué ; préférentiellement un phényle éventuellement substitué par un ou plusieurs groupes alkyle ;

• R₁₉et R₂₀, forment ensemble soit une double liaison, soit un groupe benzo D’, éventuellement substitué ;
• R’₁₆, R’₁₉et R’₂₀, identiques ou différents, représentent un atome d’hydrogène ou un groupe alkyle, ou hydroxy ;
• R₂₁représente un atome d’hydrogène, un groupe alkyle, ou alkoxy ;
• R_aet R_b, identiques ou différents, sont tels que définis précédemment, préférentiellement R_areprésente un atome d’hydrogène et R_breprésente un groupe aryle ;
• Y représente soit un groupe hydroxy soit un groupe oxo ;
• représente une simple liaison lorsque Y est groupe oxo ; et représente une double liaison lorsque Y représente un groupe hydroxy ;

in which,

• R ₁₁ , R ₁₂ and R ₁₃ , which are identical or different, represent a hydrogen atom, a halogen atom, an alkyl group or -(O) ₂ S(O ^- ), M ⁺ with M ⁺ as defined previously;
• R ₁₄ represents a hydrogen atom, an alkyl group or a -C(O)O ^- group, M ⁺ with M ⁺ as defined previously;
• R ₁₅ represents a hydrogen atom;
• R ₁₆ represents an oxo group in which case R' ₁₆ is absent, or else R ₁₅ with R ₁₆ together form a double bond;
• R ₁₇ and R ₁₈ , identical or different, represent a hydrogen atom, or a group chosen from:

• (O) ₂ S(O ^- ), M ⁺ with M ⁺ as defined above;
• Ar-OS(O) ₂ ^- with Ar representing an optionally substituted aryl group; preferably a phenyl optionally substituted by one or more alkyl groups;

• R ₁₉ and R ₂₀ together form either a double bond or an optionally substituted benzo group D';
• R′ ₁₆ , R′ ₁₉ and R′ ₂₀ , which are identical or different, represent a hydrogen atom or an alkyl or hydroxy group;
• R ₂₁ represents a hydrogen atom, an alkyl or alkoxy group;
• R _a and R _b , which are identical or different, are as defined above, preferably R _a represents a hydrogen atom and R _b represents an aryl group;
• Y represents either a hydroxy group or an oxo group;
• represents a single bond when Y is oxo; and represents a double bond when Y represents a hydroxy group;

it being understood that the formulas (III) and (III') comprise at least one sulphonate group (O) ₂ S(O ^- ), M ⁺ on one of the rings D or E or the formulas (III) and (III') comprise at least one carboxylate group (O)C(O ^- ), M ⁺ with M ⁺ as defined above.

As examples of dyes of formula (III), mention may be made of Acid Red 195, Acid Yellow 23, Acid Yellow 27, Acid Yellow 76.

As an example of dyes of formula (III'), mention may be made of the ammonium salt derived from Acid Yellow 17.

c) anthraquinone dyes of formula (IV) and (IV')

• R₂₂, R₂₃, R₂₄, R₂₅, R₂₆et R₂₇, identiques ou différents, représentent un atome d'hydrogène, d’halogène, ou un groupe choisi parmi :

• alkyle ;
• hydroxy, mercapto ;
• alkoxy, alkylthio ;
• aryloxy ou arylthio éventuellement substitué, préférentiellement substitué par un ou plusieurs groupes choisis parmi alkyle et (O)₂S(O^-), M⁺avec M⁺tel que défini précédemment ;
• aryl(alkyl)amino éventuellement substitué par un ou plusieurs groupes choisis parmi alkyle et (O)₂S(O^-), M⁺avec M⁺tel que défini précédemment ;
• (di)(alkyl)amino ;
• (di)(hydroxyalkyl)amino
• (O)₂S(O^-), M⁺avec M⁺tel que défini précédemment ;

• Z’ représente un atome d’hydrogène ou un groupe NR₂₈R₂₉avec R₂₈et R₂₉, identiques ou différents, représentent un atome d'hydrogène ou un groupe choisi parmi :

• alkyle ;
• polyhydroxyalkyle tel que l’hydroxyéthyle ;
• aryle éventuellement substitué par un ou plusieurs groupes particulièrement i) alkyle tel que le méthyle, le n-dodécyle, le n-butyle ; ii) (O)₂S(O^-), M⁺avec M⁺tel que défini précédemment ; iii) R°-C(X)-X’-, R°-X’-C(X)-, R°-X’-C(X)-X’’- avec R°, X, X’ et X’’ tels que définis précédemment, préférentiellement R° représente un groupe alkyle ;
• cycloakyle ; notamment cyclohexyle ;

• Z, représente un groupe choisi parmi hydroxy et NR’₂₈R’₂₉avec R’₂₈et R’₂₉, identiques ou différents, représentent les même atomes ou groupes que R₂₈et R₂₉tels que définis précédemment ;

in which,

• R ₂₂ , R ₂₃ , R ₂₄ , R ₂₅ , R ₂₆ and R ₂₇ , identical or different, represent a hydrogen atom, a halogen atom, or a group chosen from:

• alkyl;
• hydroxy, mercapto;
• alkoxy, alkylthio;
• optionally substituted aryloxy or arylthio, preferentially substituted by one or more groups chosen from alkyl and (O) ₂ S(O ⁻ ), M ⁺ with M ⁺ as defined above;
• aryl(alkyl)amino optionally substituted by one or more groups chosen from alkyl and (O) ₂ S(O ⁻ ), M ⁺ with M ⁺ as defined above;
• (di)(alkyl)amino;
• (di)(hydroxyalkyl)amino
• (O) ₂ S(O ^- ), M ⁺ with M ⁺ as defined above;

• Z' represents a hydrogen atom or an NR ₂₈ R ₂₉ group with R ₂₈ and R ₂₉ , which are identical or different, represent a hydrogen atom or a group chosen from:

• alkyl;
• polyhydroxyalkyl such as hydroxyethyl;
• aryl optionally substituted by one or more particularly i) alkyl groups such as methyl, n-dodecyl, n-butyl; ii) (O) ₂ S(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 above, preferably R° represents an alkyl group;
• cycloakyl; in particular cyclohexyl;

• Z represents a group chosen from hydroxy and NR′ ₂₈ R′ ₂₉ with R′ ₂₈ and R′ ₂₉ , which are identical or different, represent the same atoms or groups as R ₂₈ and R ₂₉ as defined above;

it being understood that the formulas (IV) and (IV') comprise at least one sulphonate group (O) ₂ S(O ^- ), M ⁺ with as defined previously.

As examples of dyes of formula (IV), mention may be made of 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.

Examples of dyes of formula (IV') include the ammonium salt derived from Acid Black 48.

d) dyes corresponding to formulas (V) and (V')

• R₃₀, R₃₁et R₃₂, identiques ou différents, représentent un atome d'hydrogène, d’halogène, ou un groupe choisi parmi :

• alkyle ;
• alkoxy éventuellement substitué par un ou plusieurs groupes hydroxy, alkylthio éventuellement substitué par un ou plusieurs groupes hydroxy ;
• hydroxy, mercapto ;
• nitro, nitroso ;
• (poly)halogénoalkyle ;
• R°-C(X)-X’-, R°-X’-C(X)-, R°-X’-C(X)-X’’- avec R° ; X, X’ et X’’ tels que définis précédemment ;
• (O)₂S(O^-), M⁺avec M⁺tel que défini précédemment ;
• (O)CO^-, M⁺avec M⁺tel que défini précédemment ;
• (di)(alkyl)amino ;
• (di)(hydroxyalkyl)amino ;
• hétérocycloalkyle tel que pipéridino, pipérazino ou morpholino ;

in which,

• R ₃₀ , R ₃₁ and R ₃₂ , which are identical or different, represent a hydrogen or halogen atom, or a group chosen from:

• alkyl;
• alkoxy optionally substituted by one or more hydroxy groups, alkylthio optionally substituted by one or more hydroxy groups;
• hydroxy, mercapto;
• nitro, nitroso;
• (poly)haloalkyl;
• R°-C(X)-X'-, R°-X'-C(X)-, R°-X'-C(X)-X''- with R°; X, X' and X'' as defined previously;
• (O) ₂ S(O ^- ), M ⁺ with M ⁺ as defined above;
• (O)CO ^- , M ⁺ with M ⁺ as defined above;
• (di)(alkyl)amino;
• (di)(hydroxyalkyl)amino;
• heterocycloalkyl such as piperidino, piperazino or morpholino;

• Rc et Rd, identiques ou différents, représentent un atome d’hydrogène ou un groupe alkyle ;
• W est tel que défini précédemment ; W représente particulièrement un groupe –NH– ;
• ALK représente un groupe alkylène divalent, linéaire ou ramifié, en C₁-C₆; particulièrement ALK représente un groupe –CH₂-CH₂- ;
• n vaut 1 ou 2 ;
• p représente un entier compris inclusivement entre 1 et 5 ;
• q représente un entier compris inclusivement entre 1 et 4 ;
• u vaut 0 ou 1 ;
• lorsque n vaut 1, J représente un groupe nitro, ou nitroso ; particulièrement nitro ;
• lorsque n vaut 2, J représente un atome d'oxygène, de soufre, ou un radical divalent –S(O)_m– avec m représentant un entier 1 ou 2 ; préférentiellement J représente un radical –SO₂– ;
• M’ est tel que défini précédemment pour M⁺;

particularly R ₃₀ , R ₃₁ and R ₃₂ represent a hydrogen atom;

• Rc and Rd, identical or different, represent a hydrogen atom or an alkyl group;
• W is as previously defined; W particularly represents an –NH– group;
• ALK represents a divalent, linear or branched, C ₁ -C ₆ alkylene group; particularly ALK represents a –CH ₂ -CH ₂ - group;
• n is 1 or 2;
• p represents an integer comprised inclusively between 1 and 5;
• q represents an integer comprised inclusively between 1 and 4;
• u is 0 or 1;
• when n is 1, J represents a nitro or nitroso group; especially nitro;
• when n is 2, J represents an oxygen or sulfur atom, or a divalent radical –S(O) _m – with m representing an integer 1 or 2; preferably J represents a –SO ₂ – radical;
• M' is as previously defined for M ⁺ ;

present or absent represents a benzo group optionally substituted by one or more R ₃₀ groups as defined previously;

it being understood that the formulas (V) and (V') comprise at least one sulphonate group (O) ₂ S(O ^- ), M ⁺ or carboxylate (O)C(O ^- ), M ⁺ with M ⁺ as defined previously.

As examples of dyes of formula (V), mention may be made of Acid Brown 13; acid orange 3.

As examples of dyes of formula (V'), mention may be made of Acid Yellow 1, Sodium salt of 2,4-dinitro-1-naphthol-7-sulfonic acid, 2-piperidino 5-nitro benzene sulfonic acid, 2(4'-N,N(2"-hydroxyethyl)amino-2'-nitro)aniline ethane sulfonic acid, 4-β-hydroxyethylamino-3-nitrobenzene sulfonic acid.

e) triarylmethane dyes of formula (VI)

• R₃₃, R₃₄, R₃₅et R₃₆, identiques ou différents, représentent un atome d'hydrogène ou un groupe choisi parmi alkyle, aryle éventuellement substitué et arylalkyle éventuellement substitué ; particulièrement un groupe alkyle et benzyle éventuellement substitué par un groupe (O)_mS(O^-)-M⁺avec M⁺et m tels que définis précédemment ;
• R₃₇, R₃₈, R₃₉, R₄₀, R₄₁, R₄₂, R₄₃et R₄₄, identiques ou différents, représentent un atome d'hydrogène ou un groupe choisi parmi :

• alkyle ;
• alkoxy, alkylthio ;
• (di)(alkyl)amino ;
• hydroxy, mercapto ;
• nitro, nitroso ;
• R°-C(X)-X’-, R°-X’-C(X)-, R°-X’-C(X)-X’’- avec R° représentant un atome d’hydrogène, un groupe alkyle ou aryle ; X, X’ et X’’, identiques ou différents, représentant un atome d’oxygène, de soufre ou NR avec R représentant un atome d’hydrogène ou un groupe alkyle ;
• (O)₂S(O^-), M⁺avec M⁺représentant un atome d’hydrogène ou un contre-ion cationique ;
• (O)CO^-, M⁺avec M⁺tel que défini précédemment ;
• ou alors deux groupes contigus R₄₁avec R₄₂ou R₄₂avec R₄₃ou R₄₃avec R₄₄forment ensemble un groupe fusionné benzo : I’ ; avec I’ éventuellement substitués par un ou plusieurs groupes choisi parmi i) nitro ; ii) nitroso ; iii) (O)₂S(O^-), M⁺; iv) hydroxy ; v) mercapto ; vi) (di)(alkyl)amino ; vii) R°-C(X)-X’- ; viii) R°-X’-C(X)- ; ix) R°-X’-C(X)-X’’-; avec M⁺, R°, X, X’, X’’ tels que définis précédemment ;

in which,

• R ₃₃ , R ₃₄ , R ₃₅ and R ₃₆ , which are identical or different, represent a hydrogen atom or a group chosen from alkyl, optionally substituted aryl and optionally substituted arylalkyl; particularly an alkyl and benzyl group optionally substituted by a group (O) _m S(O ⁻ )—M ⁺ with M ⁺ and m as defined above;
• R ₃₇ , R ₃₈ , R ₃₉ , R ₄₀ , R ₄₁ , R ₄₂ , R ₄₃ and R ₄₄ , identical or different, represent a hydrogen atom or a group chosen from:

• alkyl;
• alkoxy, alkylthio;
• (di)(alkyl)amino;
• hydroxy, mercapto;
• nitro, nitroso;
• R°-C(X)-X'-, R°-X'-C(X)-, R°-X'-C(X)-X''- with R° representing a hydrogen atom, a 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;
• (O) ₂ S(O ^- ), M ⁺ with M ⁺ representing a hydrogen atom or a cationic counterion;
• (O)CO ^- , M ⁺ with M ⁺ as defined previously;
• or else two contiguous groups R ₄₁ with R ₄₂ or R ₄₂ with R ₄₃ or R ₄₃ with R ₄₄ together form a fused benzo group: I'; with I' optionally substituted by one or more groups chosen from i) nitro; ii) nitroso; iii) (O) ₂ S(O ^- ), M ⁺ ; iv) hydroxy; (v) mercapto; vi) (di)(alkyl)amino; vii) R°-C(X)-X'-; viii) R°-X'-C(X)-; ix) R°-X'-C(X)-X''-; with M ⁺ , R°, X, X′, X″ as defined previously;

particularly R ₃₇ to R ₄₀ represent a hydrogen atom, and R ₄₁ to R ₄₄ , which are identical or different, represent a hydroxy or (O) ₂ S(O ^- ) -M ⁺ group; and when R ₄₃ with R ₄₄ together form a benzo group, it is preferentially substituted by a group (O) ₂ S(O ^- )-;

it being understood that at least one of the rings G, H, I or I' comprises at least one sulfonate (O) ₂ S(O ^- )-M ⁺ or carboxylate (O)C(O ^- )-M ⁺ group with M ⁺ as previously defined.

As examples of dyes of formula (VI), mention may be made of Acid Blue 1; Acid Blue 3; Acid Blue 7, Acid Blue 9; Acid Violet 49; Acid Green 50.

f) dyes derived from xanthene of formula (VII)

• R₄₅, R₄₆, R₄₇et R₄₈, identiques ou différents, représentent un atome d'hydrogène ou un atome d’halogène ;
• R₄₉, R₅₀, R₅₁et R₅₂, identiques ou différents, représentent un atome d'hydrogène, d’halogène, ou un groupe choisi parmi :

• alkyle ;
• alkoxy, alkylthio ;
• hydroxy, mercapto ;
• nitro, nitroso ;
• (O)₂S(O^-), M⁺avec M⁺représentant un atome d’hydrogène ou un contre-ion cationique ;
• (O)CO^-, M⁺avec M⁺tel que défini précédemment ;

in which,

• R ₄₅ , R ₄₆ , R ₄₇ and R ₄₈ , which are identical or different, represent a hydrogen atom or a halogen atom;
• R ₄₉ , R ₅₀ , R ₅₁ and R ₅₂ , which are identical or different, represent a hydrogen or halogen atom, or a group chosen from:

• alkyl;
• alkoxy, alkylthio;
• hydroxy, mercapto;
• nitro, nitroso;
• (O) ₂ S(O ^- ), M ⁺ with M ⁺ representing a hydrogen atom or a cationic counterion;
• (O)CO ^- , M ⁺ with M ⁺ as defined previously;

• G représente un atome d’oxygène, de soufre ou un groupe NR_eavec R_etel que défini précédemment ; particulièrement G représente un atome d’oxygène ;
• L représente un alcoolate O^-, M⁺; un thioalcoolate S^-, M⁺ou un groupe NR_f, avec R_freprésentant un atome d’hydrogène ou un groupe alkyle, et M⁺tel que défini précédemment ; M⁺est particulièrement du sodium ;
• L’ représente un atome d’oxygène, de soufre ou un groupe ammonium : N⁺R_fR_g, avec R_fet R_g, identiques ou différents, représentant un atome d’hydrogène, un groupe alkyle, aryle éventuellement substitué ; L’ représente particulièrement un atome d’oxygène ou une groupe phénylamino éventuellement substitué par un ou plusieurs groupes alkyle ou (O)_mS(O^-), M⁺avec m et M⁺tels que défini précédemment ;
• Q et Q’, identiques ou différents, représentent un atome d’oxygène ou de soufre ; particulièrement Q et Q’ représentent un atome d’oxygène ;
• M⁺est tel que défini précédemment ;

particularly R ₅₃ R ₅₄ , R ₅₅ and R ₄₈ represent a hydrogen or halogen atom;

• G represents an oxygen or sulfur atom or an NR _e group with R _e as defined previously; particularly G represents an oxygen atom;
• L represents an O ^- , M ⁺ alkoxide; a thioalcoholate S ⁻ , M ⁺ or an NR _f group, with R _f representing a hydrogen atom or an alkyl group, and M ⁺ as defined previously; M ⁺ is particularly sodium;
• L' represents an oxygen or sulfur atom or an ammonium group: N ⁺ R _f R _g , with R _f and R _g , identical or different, representing a hydrogen atom, an optionally substituted alkyl or aryl group; L' represents in particular an oxygen atom or a phenylamino group optionally substituted by one or more alkyl groups or (O) _m S(O ⁻ ), M ⁺ with m and M ⁺ as defined above;
• Q and Q', identical or different, represent an oxygen or sulfur atom; particularly Q and Q' represent an oxygen atom;
• M ⁺ is as defined previously;

it being understood that formula (VII) comprises at least one sulphonate (O) ₂ S(O ^- ), M ⁺ or carboxylate (O)C(O ^- ), M ⁺ group with M ⁺ as defined above.

As examples of dyes of formula (VII), mention may be made of Acid Yellow 73; Acid Red 51; Acid Red 87; Acid Red 92; Acid Red 95; Acid Violet 9.

g) indole-derived dyes of formula (VIII)

• R₅₃, R₅₄, R₅₅, R₅₆, R₅₇, R₅₈, R₅₉et R₆₀, identiques ou différents, représentent un atome d'hydrogène ou un groupe choisi parmi :

• alkyle ;
• alkoxy, alkylthio ;
• hydroxy, mercapto ;
• nitro, nitroso ;
• R°-C(X)-X’-, R°-X’-C(X)-, R°-X’-C(X)-X’’- avec R° représentant un atome d’hydrogène, un groupe alkyle ou aryle ; X, X’ et X’’, identiques ou différents, représentant un atome d’oxygène, de soufre ou NR avec R représentant un atome d’hydrogène ou un groupe alkyle ;
• (O)₂S(O^-), M⁺avec M⁺tel que défini précédemment ;
• (O)CO^-, M⁺avec M⁺tel que défini précédemment ;

• G représente un atome d’oxygène, de soufre ou un groupe NR_eavec R_etel que défini précédemment ; particulièrement G représente un atome d’oxygène ;
• R_iet R_h, identiques ou différents, représentent un atome d’hydrogène ou un groupe alkyle ;

in which,

• R ₅₃ , R ₅₄ , R ₅₅ , R ₅₆ , R ₅₇ , R ₅₈ , R ₅₉ and R ₆₀ , identical or different, represent a hydrogen atom or a group chosen from:

• alkyl;
• alkoxy, alkylthio;
• hydroxy, mercapto;
• nitro, nitroso;
• R°-C(X)-X'-, R°-X'-C(X)-, R°-X'-C(X)-X''- with R° representing a hydrogen atom, a 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;
• (O) ₂ S(O ^- ), M ⁺ with M ⁺ as defined previously;
• (O)CO ^- , M ⁺ with M ⁺ as defined previously;

• G represents an oxygen or sulfur atom or an NR _e group with R _e as defined previously; particularly G represents an oxygen atom;
• R _i and R _h , which are identical or different, represent a hydrogen atom or an alkyl group;

it being understood that formula (VIII) comprises at least one sulfonate (O) ₂ S(O ^- ), M ⁺ or carboxylate (O)C(O ^- ), M ⁺ group with M ⁺ as defined above.

As an example of dyes of formula (VIII), mention may be made of the ammonium salt derived from Acid Blue 74.

h) dyes derived from quinoline of formula (IX)

• R₆₁représente un atome d’hydrogène, d’halogène ou un groupe alkyle ;
• R₆₂, R₆₃, et R₆₄, identiques ou différents, représentent un atome d'hydrogène ou un groupe (O)₂S(O^-), M⁺avec M⁺tel que défini précédemment ;
• ou alors R₆₁avec R₆₂, ou R₆₁avec R₆₄, forment ensemble un groupe benzo éventuellement substitué par un ou plusieurs groupe (O)₂S(O^-), M⁺avec M⁺représentant un atome d’hydrogène ou un contre-ion cationique ;

in which,

• R ₆₁ represents a hydrogen atom, halogen atom or an alkyl group;
• R ₆₂ , R ₆₃ , and R ₆₄ , which are identical or different, represent a hydrogen atom or an (O) ₂ S(O ⁻ ) group, M ⁺ with M ⁺ as defined previously;
• or else R ₆₁ with R ₆₂ , or R ₆₁ with R ₆₄ , together form a benzo group optionally substituted by one or more groups (O) ₂ S(O ^- ), M ⁺ with M ⁺ representing a hydrogen atom or a cationic counterion;

it being understood that formula (IX) comprises at least one sulphonate group (O) ₂ S(O ^- ), M ⁺ with M ⁺ as defined previously.

Examples of dyes of formula (IX) include Acid Yellow 2, Acid Yellow 3 and Acid Yellow 5.

i) the mesomers and tautomers of formulas (II) to (IX); And

j) mixtures thereof.

More particularly, the anionic direct dyes that can be used in the context of the invention can be chosen from the following dyes:

(C.I. 45380) Acid Red 87 belonging to the formula (VII) (I.C. 10316) salts of 2,4-dinitro-1-naphthol-7-sulfonic acid belonging to the formula (V') (I.C. 10383) Acid Orange 3 belonging to the formula (V) (I.C. 13015) Acid Yellow 9 / Food Yellow 2 belonging to formula (II) (I.C. 14780) Direct Red 45 / Food Red 13 belonging to formula (II) (I.C. 13711) Acid Black 52 belonging to the formula (II) (I.C. 13065) Acid Yellow 36 belonging to the formula (II) (I.C. 14700) 1-Hydroxy-2-(2',4'-xylyl-5-sulfonatoazo)-naphthalene-4-sulfonic acid / Food Red 1 salt belonging to the formula (II) (I.C. 14720) Acid Red 14 / Food Red 3 / Mordant Blue 79 belonging to formula (II) (C.l. 14805) 4-Hydroxy-3-[(2-metoxy-5-.nitrophenyl)diaza]-6-(phenylamino)naphthalene-2-sulfonic acid / Acid Brown 4 salt belonging to the formula (II) (I.C. 15510) Acid Orange 7 / Pigment Orange 17 / Solvent Orange 49 belonging to the formula (II) (I.C. 15985) Food Yellow 3 / Pigment Yellow 104 belonging to formula (II) (I.C. 16185) Acid Red 27 / Food Red 9 belonging to formula (II) (I.C. 16230) Acid Orange 10 / Food Orange 4 belonging to formula (II) (I.C. 16250) Acid Red 44 belonging to the formula (II) (I.C. 17200) Acid Red 33 / Food Red 12 belonging to formula (II) (I.C. 15685) Acid Red 184 belonging to the formula (II) (I.C. 19125) Acid Violet 3 belonging to the formula (II) (C.I. 18055) 1-hydroxy-2-(4'-acetamido phenylazo)-8-acetamido-naphthalene-3,6-disulphonic acid / Acid Violet 7 / Food Red 11 salt belonging to the formula (II) (I.C. 18130) Acid Red 135 belonging to the formula (II) (I.C. 19130) Acid Yellow 27 belonging to the formula (III) (I.C. 19140) Acid Yellow 23 / Food Yellow 4 belonging to formula (III) (L.C. 20170) 4'-(sulfonato-2'',4''-dimethyl)-bis-(2,6-phenylazo)-1,3-dihydroxy benzene / Acid Orange 24 belonging to the formula (II) (I.C. 20470) 1-amino-2-(4'-nitrophenylazo)-7-phenylazo-8-hydroxy-naphthalene-3,6-disulphonic acid salt / Acid Black 1 (II) (I.C. 23266) (4-((4-methylphenyl)sulfonyloxy)-phenylazo)2,2'-dimethyl-4-((2-hydroxy-5,8-disulfonato)naphthylazo)biphenyl / Acid Red 111 belonging to the formula (II’) (I.C. 27755) Food Black 2 belonging to formula (II) (I.C. 25440) 1-(4'-sulfonatophenylazo)-4-((2"-hydroxy-3"-acetylamino-6",8"-disulfonato)naphthylazo)-6-sulfonatonaphthalene (tetrasodium salt) / Food Black 1 belonging to the formula ( II) (C.I. 42090) Acid Blue 9 belonging to the formula (VI) (C.I. 60730) Acid Violet 43 belonging to the formula (IV) (C.I. 61570) Acid Green 25 belonging to the formula (IV) (C.I. 62045) salt of 1-amino-4-cyclohexylamino-9,10-anthraquinone 2-sulfonic acid / Acid Blue 62 belonging to the formula (IV) (C.I. 62105) Acid Blue 78 belonging to formula (IV) (I.C. 14710) 4-hydroxy-3((2-methoxy phenyl)-azo)-1-naphthalene sulfonic acid salt / Acid Red 4 belonging to the formula (II) 2-piperidino 5-nitro benzene sulphonic acid belonging to the formula (V') 2(4'-N,N(2"-hydroxyethyl)amino-2'-nitro)aniline ethane sulfonic acid belonging to the formula (V') 4-β-Hydroxyethylamino-3-nitrobenzeneSulphonic acid belonging to the formula (V') (C.I. 42640) Acid Violet 49 belonging to the formula (VI) (C.I. 42080) Acid Blue 7 belonging to the formula (VI) (C.I. 58005) ammonium salts of 1,2-dihydroxy-3-sulfo-anthraquinone / Mordant Red 3 belonging to the formula (IV) (C.I. 62055) 1-Amino-9,10-dihydro-9,10-dioxo-4-(phenylamino) 2-anthracene sulfonic acid / Acid Blue 25 salt belonging to the formula (IV)

Most of these dyes are described in particular in the Color Index published by The Society of Dyers and Colorists, P.O. Box 244, Perkin House, 82 Grattan Road, Bradford, Yorkshire, BD1 2JBN England.

The more particularly preferred anionic direct dyes are the dyes designated in the Color Index under the codes

C.I. 58005 (monosodium salt of 1,2-dihydroxy-9,10-anthraquinone-3-sulfonic acid),

C.I. 60730 (2-[(9,10-dihydro-4-hydroxy-9,10-dioxo-1-anthracenyl)-amino]-5-methyl-benzenesulfonic acid monosodium salt),

C.I. 15510 (4-[(2-Hydroxy-1-naphthalenyl)-azo]-benzenesulfonic acid monosodium salt),

C.I. 15985 (6-Hydroxy-5-[(4-sulfophenyl)-azo]-2-naphthalenesulfonic acid disodium salt),

C.I. 17200 (5-Amino-4-hydroxy-3-(phenylazo)-2,7-naphthalene disulfonic acid disodium salt),

C.I. 20470 (1-Amino-2-(4'-nitrophenylazo)-7-phenylazo-8-hydroxy-3,6-naphthalene di-sulfonic acid disodium salt),

C.I. 42090 (N-ethyl-N-[4-[[4-[ethyl[3-sulfophenyl)-methyl]-amino]-phenyl](2-sulfophenyl)-methylene]-2,5-cyclohexadien-disodium salt 1-ylidene]-3-sulfobenzene-methanaminium hydroxide, inner salt), and

C.I. 61570 (2,2'-[(9,10-dihydro-9,10-dioxo-1,4-anthracenediyl)-diimino]-bis-[5-methyl]-benzenesulfonic acid disodium salt.

More preferably, the anionic direct dyes are chosen from those of formula (II), (III) and (IV).

According to a preferred embodiment of the invention, the anionic direct dyes of the invention are chosen from those corresponding to the following formulas (IIa), (IIIa) and (IVa):

• R₇, R₈, R₉, R₁₀, R’₇, R’₈, R’₉et R’₁₀, identiques ou différents, représentent un atome d'hydrogène ou un groupe choisi parmi :

• hydroxy,
• nitro, nitroso ;
• (di)(alkyl)amino ;
• (O)₂S(O^-), M⁺avec M⁺représentant un atome d’hydrogène, un contre-ion cationique tel que défini précédemment ; et
• Ar-N=N- avec Ar représentant un groupe aryle éventuellement substitué ; préférentiellement un phényle éventuellement substitué par un ou plusieurs groupes alkyle, (O)₂S(O^-), M⁺;

• ou alors deux groupes contigus R₇avec R₈ou R₈avec R₉ou R₉avec R₁₀forment ensemble un groupe fusionné benzo A’ ; et R’₇avec R’₈ou R’₈avec R’₉ou R’₉avec R’₁₀forment ensemble un groupe fusionné benzo B’ ; avec A’ et B’ éventuellement substitués par un ou plusieurs groupes choisis parmi a) (O)₂S(O^-), M⁺; b) hydroxy ; c) Ar-N=N- ; avec M⁺, et Ar tels que définis précédemment ;

in which,

• R ₇ , R ₈ , R ₉ , R ₁₀ , R' ₇ , R' ₈ , R' ₉ and R' ₁₀ , which are identical or different, represent a hydrogen atom or a group chosen from:

• hydroxy,
• nitro, nitroso;
• (di)(alkyl)amino;
• (O) ₂ S(O ^- ), M ⁺ with M ⁺ representing a hydrogen atom, a cationic counterion as defined above; And
• Ar-N=N- with Ar representing an optionally substituted aryl group; preferentially a phenyl optionally substituted by one or more alkyl, (O) ₂ S(O ⁻ ), M ⁺ groups;

• or two contiguous groups R ₇ with R ₈ or R ₈ with R ₉ or R ₉ with R ₁₀ together form a fused group benzo A'; and R' ₇ with R' ₈ or R' ₈ with R' ₉ or R' ₉ with R' ₁₀ together form a fused benzo group B'; with A′ and B′ optionally substituted by one or more groups chosen from a) (O) ₂ S(O ⁻ ), M ⁺ ; b) hydroxy; c) Ar-N=N-; with M ⁺ , and Ar as defined above;

• R₁₁, R₁₂et R₁₃, identiques ou différents, représentent un atome d'hydrogène, d’halogène, un groupe alkyle ou (O)₂S(O^-), M⁺avec M⁺tel que défini précédemment ;
• R₁₄représente un atome d’hydrogène, un groupe alkyle ou un groupe C(O)O^-, M⁺avec M⁺tel que défini précédemment ;
• R₁₆, R₁₇, R₁₈, R₁₉et R₂₀, identiques ou différents, représentent un atome d’hydrogène, ou un groupe alkyle, hydroxy ou (O)₂S(O^-), M⁺avec M⁺tel que défini précédemment ;
• Y représente soit un groupe hydroxy soit un groupe oxo ;
• représente une simple liaison lorsque Y est groupe oxo ; et représente une double liaison lorsque Y représente un groupe hydroxy ;

in which,

• R ₁₁ , R ₁₂ and R ₁₃ , which are identical or different, represent a hydrogen atom, a halogen atom, an alkyl group or (O) ₂ S(O ⁻ ), M ⁺ with M ⁺ as defined previously;
• R ₁₄ represents a hydrogen atom, an alkyl group or a C(O)O ^- group, M ⁺ with M ⁺ as defined previously;
• R ₁₆ , R ₁₇ , R ₁₈ , R ₁₉ and R ₂₀ , which are identical or different, represent a hydrogen atom, or an alkyl, hydroxy or (O) ₂ S(O ^- ) group, M ⁺ with M ⁺ such that previously defined;
• Y represents either a hydroxy group or an oxo group;
• represents a single bond when Y is oxo; and represents a double bond when Y represents a hydroxy group;

it being understood that formula (IIIa) comprises at least one sulphonate group (O) ₂ S(O ^- ), M ⁺ on one of the D or E or carboxylate (O)C(O ^- ), M ⁺ rings;

• Z’ représente un groupe NR₂₈R₂₉avec R₂₈représentant un atome d’hydrogène ou un groupe alkyle et R₂₉, représentant un groupe aryle éventuellement substitué particulièrement par un ou plusieurs groupes choisis parmi i) alkyle tel que le méthyle et ii) (O)₂S(O^-), M⁺avec M⁺tel que défini précédemment ;
• Z, représente un groupe choisi parmi hydroxy et NR’₂₈R’₂₉avec R’₂₈et R’₂₉, identiques ou différents, représentent les même atomes ou groupes que R₂₈et R₂₉tels que définis précédemment ;

in which :

• Z' represents a group NR ₂₈ R ₂₉ with R ₂₈ representing a hydrogen atom or an alkyl group and R ₂₉ representing an aryl group optionally substituted particularly by one or more groups chosen from i) alkyl such as methyl and ii) (O) ₂ S(O ^- ), M ⁺ with M ⁺ as defined above;
• Z represents a group chosen from hydroxy and NR′ ₂₈ R′ ₂₉ with R′ ₂₈ and R′ ₂₉ , which are identical or different, represent the same atoms or groups as R ₂₈ and R ₂₉ as defined previously;

it being understood that formula (IVa) comprises at least one sulphonate group (O) ₂ S(O ^- ), M ⁺ .

Mention may in particular be made of the following anionic dyes, which are particularly preferred:

Name Structure acid orange 7 (belongs to formula (II) and (IIa)) Acid black 1 (belongs to formula (II) and (IIa)) Acid red 18
(belongs to formula (II) and (IIa)) Acid yellow 23 (belongs to formula (III) and (IIIa)) acid violet 43 (belongs to formula (IV) and (IVa))

With M ⁺ , identical or different, being a cationic counterion as defined previously.

Preferably, the composition according to the invention comprises the anionic direct dye(s) in a content ranging from 0.001 to 10% by weight, preferably from 0.005 to 8% by weight, better still from 0.01 to 5% by weight, and even better 0.05 to 2% by weight, relative to the total weight of the composition.

3/ Fatty alcohols

The composition according to the invention can advantageously comprise one or more fatty alcohols, comprising at least 8 carbon atoms, in particular from 8 to 32 carbon atoms, preferably from 10 to 28 carbon atoms, even better from 12 to 24 carbon atoms. carbon, or even 14 to 20 carbon atoms.

The fatty alcohols according to the invention can be liquid or solid at ambient temperature and at atmospheric pressure (25° C., 1 atm). Preferably, the fatty alcohols used are solid at ambient temperature and at atmospheric pressure (25° C., 1 atm).

Preferably, the fatty alcohols according to the invention have an R-OH structure with R denoting a hydrocarbon group, saturated or unsaturated, linear or branched, optionally substituted by one or more hydroxy groups, comprising from 8 to 32 carbon atoms, from preferably from 10 to 28 carbon atoms, even better from 12 to 24 carbon atoms, or even from 14 to 20 carbon atoms. These fatty alcohols are neither oxyalkylenated nor glycerolated.

Preferably, R is a (saturated), linear or branched, preferably linear, alkyl group comprising from 12 to 24 carbon atoms, better still from 14 to 20 carbon atoms.

The fatty alcohols which can be used can be chosen from, alone or as a mixture, lauryl alcohol, myristic alcohol, cetyl alcohol (1-hexadecanol), stearyl alcohol (1-octadecanol), arachidyl alcohol (1-eicosanol), behenyl alcohol (1-docosanol), lignoceryl alcohol (1-tetracosanol), ceryl alcohol (1-hexacosanol), montanyl alcohol (1-octacosanol) and myricyl alcohol (1-triacontanol).

Preferably, the composition comprises at least one fatty alcohol chosen from cetyl alcohol, stearyl alcohol, behenyl alcohol and mixtures thereof such as cetylstearyl or cetearyl alcohol.

When present, the composition according to the invention may comprise the fatty alcohol(s) in a total amount ranging from 5 to 25% by weight, in particular from 8 to 20% by weight, preferably from 10 to 15% by weight, relative to the total weight of the composition.

When present, the composition according to the invention may comprise the solid fatty alcohol(s) in a total amount ranging from 5 to 25% by weight, in particular from 8 to 20% by weight, preferably from 10 to 15% by weight. , relative to the total weight of the composition.

4/ Anionic surfactants

The composition according to the invention can advantageously comprise one or more anionic surfactants.

By anionic surfactant is meant a surfactant comprising as ionic or ionizable groups only anionic groups.

In the present description, an entity is qualified as being "anionic" when it has at least one permanent negative charge or when it can be ionized into a negatively charged entity, under the conditions of use of the composition of the invention. (medium, pH for example) and not comprising any cationic charge.

The anionic surfactants can be sulphate, sulphonate and/or carboxylic (or carboxylate) surfactants. It is of course possible to use a mixture of these surfactants.

It is understood in this description that:

- the carboxylate anionic surfactants comprise at least one carboxylic or carboxylate function (-COOH or -COO ^- ), and may optionally also comprise one or more sulphate and/or sulphonate functions;

- the sulphonate anionic surfactants comprise at least one sulphonate function (-SO ₃ H or -SO ₃ ^– ), and may optionally also comprise one or more sulphate functions, but do not comprise a carboxylate function; And

- the sulphate anionic surfactants comprise at least one sulphate function but do not comprise a carboxylate or sulphonate function.

The carboxylic anionic surfactants that can be used therefore contain at least one carboxylic or carboxylate function (-COOH or ^-COO- ).

They can be chosen from the following compounds: acylglycinates, acyllactylates, acylsarcosinates, acylglutamates; alkyl ether carboxylic acids, alkyl(aryl C6-30) ether carboxylic acids, alkyl-D-galactoside-uronic acids, alkylamido ether carboxylic acids; as well as the salts of these compounds; the alkyl and/or acyl groups of these compounds comprising from 6 to 30 carbon atoms, in particular from 12 to 28, even better from 14 to 24, or even from 16 to 22 carbon atoms; the aryl group preferably designating a phenyl or benzyl group; these compounds possibly being polyoxyalkylenated, in particular polyoxyethylenated and then preferably comprising from 1 to 50 ethylene oxide units, better still from 2 to 10 ethylene oxide units.

It is also possible to use monoesters of C6-C24 alkyl and of polyglycoside-polycarboxylic acids such as C6-C24 alkyl polyglycoside-citrates, C6-C24 alkyl polyglycoside-tartrates and polyglycoside-sulfosuccinates C6-C24 alkyl, and their salts.

Among the carboxylic surfactants above, mention may very particularly be made of polyoxyalkylenated alkyl(amido)ether carboxylic acids and their salts, in particular those comprising from 2 to 50 alkylene oxide groups, in particular of ethylene, such as the compounds offered by the company KAO under the names AKYPO,

The polyoxyalkylenated alkyl(amido)ether carboxylic acids which can be used are preferably chosen from those of formula (1):

R _1' –(OC ₂ H ₄ ) _n' –OCH ₂ COOA (1)

in which :

- R _1' represents a linear or branched C6-C24 alkyl or alkenyl radical, a (C8-C9)alkylphenyl radical, a radical R _2'CONH -CH2-CH2- with R _2' denoting a linear alkyl or alkenyl radical or branched at C9-C21; preferably R _1' is a C8-C20, preferably C8-C18, alkyl radical;

- n' is an integer or decimal number (average value) ranging from 2 to 24, preferably from 2 to 10,

- A denotes H, ammonium, Na, K, Li, Mg or a monoethanolamine or triethanolamine residue.

It is also possible to use mixtures of compounds of formula (1), in particular mixtures of compounds having different R _{1 '} groups.

Particularly preferred polyoxyalkylenated alkyl(amido)ether carboxylic acids are those of formula (1) in which:

- R _{1 '} denotes a linear or branched C8-C22 alkyl radical, in particular C10-C16, or even C12-C14, or alternatively a (C8-C9)alkylphenyl radical;

- A denotes a hydrogen or sodium atom, and

- n’ varies from 2 to 20, preferably from 2 to 10.

Even more preferably, compounds of formula (1) are used in which R _{1 '} denotes a C12-C14 alkyl, cocoyl, oleyl, nonylphenyl or octylphenyl radical, A denotes a hydrogen or sodium atom and n' varies from 2 to 10.

Among the commercial products, the products sold by the company KAO under the names:

AKYPO® NP 70 (R ₁ = nonylphenyl, n=7, A=H)

AKYPO® NP 40 (R ₁ = nonylphenyl, n=4, A=H)

AKYPO®OP 40 (R ₁ = octylphenyl, n=4, A=H)

AKYPO® OP 80 (R ₁ = octylphenyl, n=8, A=H)

AKYPO® OP 190 (R ₁ = octylphenyl, n=19, A=H)

AKYPO® RLM 38 (R ₁ =C ₁₂ -C ₁₄ alkyl, n=4, A=H)

AKYPO® RLM 38 NV (R ₁ = C ₁₂ -C ₁₄ alkyl, n=4, A=Na)

AKYPO® RLM 45 CA (R ₁ = C ₁₂ -C ₁₄ alkyl, n=4.5, A=H)

AKYPO® RLM 45 NV (R ₁ = C ₁₂ -C ₁₄ alkyl, n=4.5, A=Na)

AKYPO® RLM 100 (R ₁ = C ₁₂ -C ₁₄ alkyl, n=10, A=H)

AKYPO® RLM 100 NV (R ₁ = C ₁₂ -C ₁₄ alkyl, n=10, A=Na)

AKYPO® RLM 130 (R ₁ = C ₁₂ -C ₁₄ alkyl, n=13, A=H)

AKYPO® RLM 160 NV (R ₁ = C ₁₂ -C ₁₄ alkyl, n=16, A=Na),

or by SANDOZ under the names:

SANDOPAN DTC-Acid (R ₁ = C ₁₃ alkyl, n=6, A=H)

SANDOPAN DTC (R ₁ = C ₁₃ alkyl, n=6, A=Na)

SANDOPAN LS 24 (R ₁ = C ₁₂ -C ₁₄ alkyl, n=12, A=Na)

SANDOPAN JA 36 (R ₁ = C ₁₃ alkyl, n=18, A=H),

and more particularly, the products sold under the following names:

AKYPO® RLM 45 (INCI: Laureth-5 carboxylic acid)

AKYPO®RLM 100

AKYPO® RLM 38.

Preferably, the anionic carboxylic surfactants are chosen from, alone or as a mixture:

- acylglutamates, in particular C6-C24, or even C12-C20, such as stearoylglutamates, and in particular disodium stearoylglutamate;

- acylsarcosinates, in particular C6-C24, or even C12-C20, such as palmitoylsarcosinates, and in particular sodium palmitoylsarcosinate;

- acyllactylates, in particular C12-C28, or even C14-C24, such as behe-noyllactylates, and in particular sodium behenoyllactylate;

- C6-C24 acylglycinates, in particular C12-C20;

- alkyl (C6-C24) ether carboxylates, and in particular alkyl (C12-C20) ether carboxylates; in particular those comprising from 2 to 50 ethylene oxide groups;

- polyoxyalkylenated alkyl(C6-C24)amidoether carboxylic acids, in particular those comprising from 2 to 50 ethylene oxide groups;

in particular in acid form or in the form of alkali or alkaline-earth metal, ammonium or aminoalcohol salts.

Preferably, polyoxyalkylenated (C ₆ -C ₂₄ )alkyl ether carboxylic acids and their salts are used.

The sulphonate anionic surfactants capable of being used comprise at least one sulphonate function (-SO ₃ H or -SO ₃ ^– ). They can be chosen from the following compounds: alkylsulfonates, alkylethersulfonates, alkylamidesulfonates, alkylarylsulfonates, alpha-olefinsulfonates, paraffinsulfonates, alkylsulfosuccinates, alkylethersulfosuccinates, alkylamidesulfosuccinates, alkylsulfoacetates, N-acyltaurates, acylisethionates; alkylsulfolaurates; as well as the salts of these compounds;

the alkyl groups of these compounds comprising from 6 to 30 carbon atoms, in particular from 12 to 28, even better from 14 to 24, or even from 16 to 22, carbon atoms; the aryl group preferably designating a phenyl or benzyl group;

these compounds possibly being polyoxyalkylenated, in particular polyoxyethylenated and then preferably comprising from 1 to 50 ethylene oxide units, better still from 2 to 10 ethylene oxide units.

Preferably, the sulphonate anionic surfactants are chosen from, alone or as a mixture:

- C6-C24 olefinsulfonates, in particular C12-C20,

- C6-C24, in particular C12-C20, alkylsulfosuccinates, in particular laurylsulfosuccinates.

- C6-C24, in particular C12-C20, alkyl ether sulfosuccinates;

- (C6-C24)acylisethionates, preferably (C12-C18)acylisethionates, in particular in the form of alkali or alkaline-earth metal, ammonium or aminoalcohol salts.

The sulphate anionic surfactants capable of being used comprise at least one sulphate function (-OSO ₃ H or -OSO ₃ ^- ).

They can be chosen from the following compounds: alkyl sulphates, alkyl ether sulphates, alkylamido ether sulphates, alkylarylpolyether sulphates, monoglyceride sulphates; as well as the salts of these compounds;

the alkyl groups of these compounds comprising from 6 to 30 carbon atoms, in particular from 12 to 28, even better from 14 to 24, or even from 16 to 22, carbon atoms; the aryl group preferably designating a phenyl or benzyl group;

these compounds possibly being polyoxyalkylenated, in particular polyoxyethylenated and then preferably comprising from 1 to 50 ethylene oxide units, better still from 2 to 10 ethylene oxide units.

Preferably, the sulfate anionic surfactants are chosen from, alone or as a mixture:

- alkyl sulphates, in particular C6-C24, or even C12-C20,

- alkyl ether sulfates, in particular C6-C24, or even C12-C20, preferably comprising from 2 to 20 ethylene oxide units;

in particular in the form of alkali or alkaline-earth metal, ammonium or aminoalcohol salts.

When the anionic surfactant is in the form of a salt, said salt may be chosen from alkali metal salts such as sodium or potassium salt, ammonium salts, amine salts and in particular amino alcohol salts, and alkaline earth metal salts such as magnesium salt.

As examples of salts of amino alcohols, mention may be made of mono-, di- and triethanolamine salts, mono-, di- or tri-isopropanolamine salts, 2-amino 2-methyl 1-propanol, 2- amino 2-methyl 1,3-propanediol and tris(hydroxymethyl)amino methane.

Salts of alkali metals or alkaline earth metals, and in particular sodium or magnesium salts, are preferably used.

Preferably, the anionic surfactants are chosen from, alone or as a mixture,

- C6-C24 alkyl sulphates, in particular C12-C20,

- C6-C24 alkyl ether sulphates, in particular C12-C20; preferably comprising from 2 to 20 ethylene oxide units;

- C6-C24, in particular C12-C20, alkylsulfosuccinates, in particular laurylsulfosuccinates;

- C6-C24 olefinsulfonates, in particular C12-C20,

- C6-C24, in particular C12-C20, alkyl ether sulfosuccinates;

- (C6-C24)acylisethionates, preferably (C12-C18)acylisethionates,

- C6-C24 acylsarcosinates, in particular C12-C20; in particular palmitoylsarcosinates;

- alkyl (C6-C24) ether carboxylates, preferably alkyl (C12-C20) ether carboxylates; in particular those comprising from 2 to 50 ethylene oxide groups;

- polyoxyalkylenated (C6-C24)alkylamidoethercarboxylic acids and their salts, in particular those comprising from 2 to 50 alkylene oxide groups, in particular ethylene oxide groups;

- C6-C24 acylglutamates, in particular C12-C20;

- C6-C24 acylglycinates, in particular C12-C20;

in particular in the acid form or of alkali or alkaline-earth metal, ammonium or aminoalcohol salts.

Preferably, the composition comprises one or more sulphate anionic surfactants, preferably one or more C6-C24 alkyl sulphates, in particular C12-C20, and/or one or more C6-C24 alkyl ether sulphates, in particular C12-C20; preferably comprising from 2 to 20 ethylene oxide units; particularly in the form of alkali or alkaline-earth metal, ammonium or aminoalcohol salts.

When they are present, the anionic surfactant(s) are preferably present in the composition according to the invention in a total amount ranging from 0.1 to 20% by weight, in particular from 0.5 to 15% by weight, better still 0.8 to 10% by weight, even better still from 1 to 5% by weight, relative to the total weight of the composition.

5/ Additional silicones

The composition according to the invention can advantageously comprise one or more additional silicones, different from the silicones containing a carboxylic group above.

As silicones capable of being employed, mention may be made, alone or in a mixture, of polydialkylsiloxanes and in particular polydimethylsiloxanes (PDMS), polydiarylsiloxanes, polyalkylarylsiloxanes, silicone gums and resins, as well as organopolysiloxanes (or organomodified polysiloxanes, or organomodified silicones) which are polysiloxanes comprising in their structure one or more organofunctional groups, generally attached via a hydrocarbon group, and preferably chosen from aryl groups, amino groups, alkoxy groups and groups polyoxyethylene or polyoxypropylene.

The organomodified silicones can be polydiarylsiloxanes, in particular polydiphenylsiloxanes, and polyalkylarylsiloxanes, functionalized with the organofunctional groups mentioned above.

Among the organomodified silicones, mention may be made of organopolysiloxanes comprising:

- polyoxyethylene and/or polyoxypropylene groups possibly comprising C ₆ -C ₂₄ alkyl groups such as dimethicone-copolyols, and in particular those marketed by DOW CORNING under the name DC 1248 or SILWET ^® L 722, L 7500 oils , L 77, L 711 from UNION CARBIDE; or alternatively (C ₁₂ )alkyl-methicone-copolyols, and in particular those marketed by the company DOW CORNING under the name Q2-5200;

- substituted or unsubstituted amino groups, in particular C ₁ -C _{4 aminoalkyl groups;} mention may be made of the products marketed under the name GP4 Silicone Fluid and GP7100 by the company GENESEE, or under the names Q2-8220 and DC929 or DC939 by the company DOW CORNING;

- thiol groups, such as the products marketed under the names "GP 72 A" and "GP 71" from GENESEE;

- alkoxylated groups, such as the product marketed under the name "SILICONE COPOLYMER F-755" by SWS SILICONES and ABIL ^WAX® 2428, 2434 and 2440 by the company GOLDSCHMIDT;

- hydroxyl groups, such as polyorganosiloxanes with a hydroxyalkyl function;

- acyloxyalkyl groups such as the polyorganosiloxanes described in US-A-4957732.

- hydroxyacylamino groups, such as the polyorganosiloxanes described in application EP342834; mention may be made, for example, of the product Q2-8413 from the company DOW CORNING.

The polydialkylsiloxanes can be chosen mainly from polydimethylsiloxanes containing trimethylsilyl end groups. Among these polydialkylsiloxanes, mention may be made of the following commercial products:

- SILBIONE® oils of the 47 and 70 047 series or MIRASIL® oils marketed by RHODIA such as, for example oil 70 047 V 500 000;

- the oils of the MIRASIL® series marketed by the company RHODIA;

- oils of the 200 series from DOW CORNING, such as DC200 having a viscosity of 60,000 mm ² /s;

- VISCASIL® oils from GENERAL ELECTRIC and certain oils from the SF series (SF 96, SF 18) from GENERAL ELECTRIC.

Mention may also be made of polydimethylsiloxanes containing dimethylsilanol end groups known under the name of dimethiconol (CTFA), such as the oils of the 48 series from the company RHODIA.

In this class of polydialkylsiloxanes, mention may also be made of the products marketed under the names “ABIL WAX® 9800 and 9801” by the company GOLDSCHMIDT, which are polydialkyl (C1-C20) siloxanes.

Products which can be used more particularly in accordance with the invention are mixtures such as:

- the mixtures formed from a polydimethylsiloxane hydroxylated at the end of the chain, or dimethiconol (CTFA) and a cyclic polydimethylsiloxane also called cyclomethicone (CTFA) such as the product Q2-1401 marketed by the company DOW CORNING.

The polyalkylarylsiloxanes are particularly chosen from polydimethyl/methylphenylsiloxanes, linear and/or branched polydimethyl/diphenylsiloxanes, preferably having a viscosity ranging from 1.10 ^-5 to 5.10 ^-2 m²/s at 25°C.

Among these polyalkylarylsiloxanes, mention may be made of the products marketed under the following names:

- SILBIONE® oils of the 70 641 series from RHODIA;

- oils of the RHODORSIL® 70 633 and 763 series from RHODIA;

- DOW CORNING 556 COSMETIC GRAD FLUID oil from DOW CORNING;

- BAYER's PK series silicones such as the PK20 product;

- the silicones of the PN and PH series from BAYER such as the PN1000 and PH1000 products;

- certain oils from GENERAL ELECTRIC's SF series such as SF 1023, SF 1154, SF 1250, SF 1265.

Preferably, the additional silicones can be chosen from polydimethylsiloxanes (INCI name: dimethicone), in particular those having a weight-average molecular weight (Mw) of between 200 and 500,000, preferably between 500 and 300,000.

When present, the composition according to the invention may comprise the additional silicone(s) in a total amount ranging from 0.1 to 15% by weight, in particular from 1 to 10% by weight, preferably from 2 to 6% by weight. weight, relative to the total weight of the composition.

6/ Other constituents

The composition according to the invention may comprise a cosmetically acceptable medium, that is to say a medium compatible with topical application to keratin fibres, in particular the hair.

Preferably, said cosmetic composition is a hair composition, which may be a rinse-out or leave-in, preferably rinse-out, composition.

It is preferably presented in the form of a conditioning treatment or a hair mask.

The composition according to the invention preferably comprises water and/or one or more organic solvents which may be chosen from monoalcohols, linear or branched, C1-C6 such as ethanol, isopropanol, tertio- butanol or n-butanol; polyols such as glycerol, propylene glycol, hexylene glycol (or 2-methyl-2,4-pentanediol), and polyethylene glycols; polyol ethers such as dipropylene glycol monomethyl ether; and their mixtures.

Preferably, the cosmetic composition comprises water at a content ranging from 40 to 95% by weight, in particular from 55 to 90% by weight, better still from 65 to 85% by weight, relative to the total weight of the composition.

The cosmetic composition according to the invention may also comprise at least one usual cosmetic ingredient, chosen in particular from liquid fatty substances, such as vegetable, mineral, animal or synthetic oils and liquid fatty esters; solid fatty substances and in particular waxes and solid fatty esters; cationic, amphoteric and nonionic surfactants; sun filters; moisturizing agents; anti-dandruff agents, antioxidant agents; pearlescent and opacifying agents; plasticizing or coalescing agents; hydroxy acids; conservatives; sequestrants (EDTA and its salts). The composition can of course comprise several cosmetic ingredients appearing in the above list. The person skilled in the art will take care to choose the ingredients entering into the composition, as well as their quantities, in such a way that the advantageous properties of the composition according to the invention are not, or substantially not, altered by the addition envisaged.

The invention also relates to a process for the cosmetic treatment of keratin fibres, in particular a capillary treatment process for the hair, in which a cosmetic composition as defined above is applied to the said fibers.

The step of applying the composition can optionally be followed by a step of applying the composition to the fibers, and/or a step of rinsing the fibers, for example with water, and/or a step of drying the keratin fibres.

Preferably, the application step is followed by rinsing.

The composition according to the invention can advantageously be used in combination with a shampoo comprising one or more anionic surfactants chosen from polyoxyalkylenated alkyl(amido)ether carboxylic acids and their salts.

This combination provides even better conditioning properties.

Thus, another object of the invention is a method for the cosmetic treatment of keratin fibers, in particular human keratin fibers such as the hair, comprising:

- at least one step (a) of application to said keratin fibers of a washing cosmetic composition A, comprising (i) one or more anionic surfactants chosen from polyoxyalkylenated alkyl(amido)ether carboxylic acids and their salts;

- at least one step (b) of application to said keratin fibers of a cosmetic composition as defined above.

Preferably, step (a) is carried out before step (b), in particular a few minutes before, for example 1 to 15 minutes before.

The washing cosmetic composition may also comprise

(ii) one or more anionic surfactants other than polyoxyalkylenated alkyl(amido)ether carboxylic acid anionic surfactants and their salts (i); and or

(iii) one or more nonionic surfactants; and or

(iv) one or more amphoteric surfactants; and or

(v) one or more cationic polymers and/or

(vi) one or more amphoteric polymers.

Preferably, the cleansing cosmetic composition comprises

(ii) one or more anionic surfactants other than polyoxyalkylenated alkyl(amido)ether carboxylic acid anionic surfactants and their salts (i); (iii) one or more nonionic surfactants;

(iv) one or more amphoteric surfactants;

(v) one or more cationic polymers and/or (vi) one or more amphoteric polymers; and more preferably one or more cationic polymers and one or more amphoteric polymers.

Preferably, the care composition is applied to damp hair, after rinsing out the washing composition A, preferably immediately after rinsing out the washing composition A. Preferably, the care composition is allowed to stand on the hair for a time ranging in particular from 1 to 15 minutes, better still from 2 to 10 minutes.

The polyoxyalkylenated alkyl(amido)ether carboxylic acids and their salts (i) present in washing composition A are described above; most particularly preferred are those comprising from 2 to 50 alkylene oxide groups, in particular ethylene oxide groups, and even better those of formula (1) above.

The washing composition A according to the invention preferably comprises said polyoxyalkylenated alkyl (amido) ether carboxylic acid(s) and/or their salts, in a total amount ranging from 0.1 to 30% by weight, preferably from 0.5 to 25% by weight, better still from 1 to 20% by weight and preferentially from 3 to 10% by weight relative to the total weight of the washing composition A.

The additional anionic surfactant(s), other than polyoxyalkylenated alkyl (amido) ether carboxylic acids and their salts (i), which may be present in the washing composition A can be chosen from all those described above.

Preferably, the additional anionic surfactants (ii) used in the washing composition A comprise one or more sulphated anionic surfactants; and better are chosen from alkyl (C ₁₂ -C ₁₄ ) sodium, triethanolamine, magnesium or ammonium sulphates, and/or alkyl (C ₁₂ -C ₁₄ ) ether sulphates of sodium, ammonium or magnesium , oxyethylenated, for example with 1 to 10 moles of ethylene oxide.

The anionic surfactant(s) (ii) may be present in the washing composition A in a total content ranging from 3 to 20% by weight, preferably in a content ranging from 3.5 to 18%, better still from 4 to 15% by weight. weight, even better from 4.5 to 12% by weight, relative to the total weight of the washing composition A.

The nonionic surfactant(s) which may be present in the washing composition A may be chosen, alone or as a mixture, from:

- alcohols, alpha-diols and alkyl(C _1–20 )phenols, these compounds being polyethoxylated and/or polypropoxylated and/or polyglycerolated, the number of ethylene oxide and/or propylene oxide groups possibly ranging from 1 to 100, and the number of glycerol groups possibly ranging from 2 to 30; or alternatively these compounds comprising at least one fatty chain comprising from 8 to 40 carbon atoms, in particular from 16 to 30 carbon atoms; in particular alcohols comprising at least one C ₈ to C ₄₀ alkyl chain, saturated or not, linear or branched, oxyethylenated comprising from 1 to 100 moles of ethylene oxide, preferably from 2 to 50, more particularly from 2 with 40 moles of ethylene oxide and comprising one or two fatty chains;

- condensates of ethylene oxide and propylene oxide with fatty alcohols;

- polyethoxylated fatty amides preferably having from 2 to 30 ethylene oxide units, polyglycerolated fatty amides comprising on average from 1 to 5 glycerol groups and in particular from 1.5 to 4;

- ethoxylated sorbitan fatty acid esters preferably having from 2 to 40 ethylene oxide units;

- sucrose fatty acid esters;

- polyoxyalkylenated fatty acid esters, preferably polyoxyethylenated, containing from 2 to 150 moles of ethylene oxide, including oxyethylenated vegetable oils;

- N-(C _6-24 alkyl)glucamine derivatives;

- Amine oxides such as (C _10-14 alkyl)amine oxides or N-(C _10-14 acyl)-aminopropylmorpholine oxides.

- nonionic surfactants of the alkyl(poly)glycoside type, in particular represented by the following general formula (2): R ₁ O-(R ₂ O) _t -(G) _v (2)

in which:

R ₁ represents an alkyl or alkenyl radical, linear or branched, containing 6 to 24 carbon atoms, in particular 8 to 18 carbon atoms, or an alkylphenyl radical whose linear or branched alkyl radical contains 6 to 24 carbon atoms, in particular 8 to 18 carbon atoms;

R ₂ represents an alkylene radical containing 2 to 4 carbon atoms;

G represents a sugar unit comprising 5 to 6 carbon atoms;

t denotes a value ranging from 0 to 10, preferably from 0 to 4;

v denotes a value ranging from 1 to 15, preferably from 1 to 4.

Preferably, the alkyl(poly)glycoside surfactants are compounds of formula (2) described above in which:

- R ₁ denotes an alkyl radical, saturated or unsaturated, linear or branched, comprising from 8 to 18 carbon atoms;

- R ₂ represents an alkylene radical containing 2 to 4 carbon atoms;

- t denotes a value ranging from 0 to 3, preferably equal to 0;

- G denotes glucose, fructose or galactose, preferably glucose;

- the degree of polymerization, that is to say the value of v, which can range from 1 to 15, preferably from 1 to 4; the average degree of polymerization being more particularly between 1 and 2.

The glucosidic bonds between the sugar units are generally of the 1-6 or 1-4 type, preferably of the 1-4 type. Preferably, the alkyl(poly)glycoside surfactant is an alkyl(poly)glucoside surfactant. Particularly preferred are the C8/C16-(poly)glucosides 1,4, and in particular the decylglucosides and the caprylyl/capryl glucosides.

Even better, the nonionic surfactant(s) are preferably chosen from (C ₆ -C ₂₄ alkyl) (poly)glycosides, and even more particularly (C ₈ -C ₁₈ alkyl) (poly)glycosides.

Preferably, the nonionic surfactant(s) are present in the washing composition A in a total content ranging from 0.5 to 20% by weight, preferentially ranging from 1% to 15% by weight, in particular ranging from 1.5 to 10%, even better from 1.75 to 8% by weight, relative to the total weight of the washing composition A.

The amphoteric surfactant(s) likely to be present in the washing composition A are preferably non-silicone. They may be chosen from (C ₈ -C ₂₀ )alkyl betaines, (C ₈ -C ₂₀ )alkyl sulfobetaines, (C ₈ -C ₂₀ )alkylamido(C ₃ -C ₈ )alkyl betaines and (C 8 -C 8 )alkyl betaines and (C 8 -C 8 )alkyl betaines ₈ -C ₂₀ )-amid(C ₆ -C ₈ )alkylsulfobetaines.

They can also be chosen from the compounds of formulas (3), (4) or (5) below:

R _a -CONHCH ₂ CH ₂ -N ⁺ (R _b )(R _c )-CH ₂ COO ^- , M ⁺ , X ^- (3)

in which :

- R _a represents a C ₁₀ to C ₃₀ alkyl or alkenyl group derived from an acid R _a COOH, preferably present in hydrolyzed coconut oil, a heptyl, nonyl or undecyl group;

- R _b represents a beta-hydroxyethyl group; And

- R _c represents a carboxymethyl group;

- M ⁺ represents a cationic counter ion from an alkali metal, alkaline earth metal, such as sodium, an ammonium ion or an ion from an organic amine, and

- X ^- represents an organic or inorganic anionic counter-ion, such as that chosen from halides, acetates, phosphates, nitrates, alkyl (C ₁ -C ₄ )sulfates, alkyl (C ₁ -C ₄ )- or alkyl (C ₁ -C ₄ )aryl sulphonates, in particular methyl sulphate and ethyl sulphate; or else M ⁺ and X ^- are absent;

R _a' -CONHCH ₂ CH ₂ -N(B)(B') (4)

in which :

- B represents the -CH ₂ CH ₂ OX'group;

- B' represents the group -(CH ₂ ) _z Y', with z=1 or 2;

- X' represents the group -CH ₂ COOH, -CH ₂ -COOZ', -CH ₂ CH ₂ COOH, CH ₂ CH ₂ -COOZ', or a hydrogen atom;

- Y' represents the group –COOH, -COOZ', -CH ₂ CH(OH)SO ₃ H or the group CH ₂ CH(OH)SO ₃ -Z';

- Z' represents a cationic counter ion from an alkali or alkaline earth metal, such as sodium, an ammonium ion or an ion from an organic amine;

- R _{a '} represents a C ₁₀ to C ₃₀ alkyl or alkenyl group of an acid R _a' -COOH preferably present in coconut oil or in hydrolyzed linseed oil, an alkyl group, in particular C ₁₇ and its iso form, an unsaturated C ₁₇ group.

R _a'' -NHCH(Y'')-(CH ₂ ) _n CONH(CH ₂ ) _n' -N(R _d )(R _e ) (5)

in which :

- Y'' represents the group –COOH, -COOZ'', -CH ₂ -CH(OH)SO ₃ H or the group CH ₂ CH(OH)SO ₃ -Z'';

- R _d and R _e , independently of one another, represent a C ₁ to C ₄ alkyl or hydroxyalkyl radical;

- Z'' represents a cationic counter ion from an alkali metal or alkaline earth metal, such as sodium, an ammonium ion or an ion from an organic amine;

- R _a'' represents a C ₁₀ to C ₃₀ alkyl or alkenyl group of an acid R _a'' -COOH preferably present in coconut oil or in hydrolyzed linseed oil;

- n and n', independently of each other, designate an integer ranging from 1 to 3.

Preferably, the amphoteric surfactant(s) (iv) are chosen, alone or as a mixture, from (C ₈ -C ₂₀ )alkyl betaines such as cocobetaine, (C ₈ -C ₂₀ )amidoalkyl(C ₃ -C ₈ ) betaines such as cocamidopropyl betaine, and the compounds of formula (5) such as the sodium salt of diethylaminopropyl lauryl amino succinamate (INCI name: sodium diethylaminopropyl cocoaspartamide).

Preferably, the amphoteric surfactant(s) are present in the washing composition A in a total content ranging from 3 to 20% by weight, preferably in a content ranging from 3.5 to 15% by weight, even better still from 4 to 10% by weight, relative to the total weight of the washing composition A.

The cationic polymer or polymers likely to be present in the washing composition A preferably have a cationic charge density greater than or equal to 3 milliequivalents/gram (meq/g), better still greater than or equal to 4 meq/g, or even greater than or equal to 5 meq/g, in particular ranging from 3 to 20, in particular from 4 to 20, even better from 5 to 20 meq/g.

The cationic charge density of a polymer corresponds to the number of moles of cationic charge per unit mass of polymer under conditions where it is completely ionized. It can be determined by calculation if the structure of the polymer is known, i.e. the structure of the monomers constituting the polymer and their molar or weight proportion. It can also be determined experimentally by the Kjeldahl method.

Within the meaning of the present invention, the expression "cationic polymer" denotes any non-silicone polymer (not comprising a silicon atom) containing cationic groups and/or groups which can be ionized into cationic groups, and not containing anionic groups. and/or groups which can be ionized into anionic groups.

Among the cationic polymers, mention may more preferably be made of:

(1) homopolymers or copolymers derived from acrylic or methacrylic esters or amides and comprising at least one of the units of the following formula:

in which:

- R ₃ , identical or different, denote a hydrogen atom or a CH ₃ radical;

- A, identical or different, represent a divalent alkyl group, linear or branched, of 1 to 6 carbon atoms, preferably 2 or 3 carbon atoms or a hydroxyalkyl group of 1 to 4 carbon atoms;

- R ₄ , R ₅ , R ₆ , identical or different, represent an alkyl group having from 1 to 18 carbon atoms or a benzyl radical; preferably an alkyl group having 1 to 6 carbon atoms;

- R ₁ and R ₂ , identical or different, represent a hydrogen atom or an alkyl group having from 1 to 6 carbon atoms, preferably methyl or ethyl;

- X denotes an anion derived from a mineral or organic acid such as a methosulfate anion or a halide such as chloride or bromide.

The copolymers of family (1) can also contain one or more units deriving from comonomers which can be chosen from the family of acrylamides, methacrylamides, diacetone acrylamides, acrylamides and methacrylamides substituted on the nitrogen by lower alkyls (C ₁ -C ₄ ), acrylic or methacrylic acid esters, vinyllactams such as vinylpyrrolidone or vinylcaprolactam, vinyl esters.

Among these copolymers of family (1), mention may be made of:

- copolymers of acrylamide and dimethylaminoethyl methacrylate quaternized with dimethyl sulphate or with a dimethyl halide, such as that sold under the name HERCOFLOC by the company HERCULES,

- copolymers of acrylamide and methacryloyloxyethyltrimethylammonium chloride, such as those sold under the name BINA QUAT P 100 by the company CIBA GEIGY,

- the copolymer of acrylamide and methacryloyloxyethyltrimethylammonium methosulfate, such as that sold under the name RETEN by the company HERCULES,

- vinylpyrrolidone/dialkylaminoalkyl acrylate or methacrylate copolymers, quaternized or not, such as the products sold under the name "GAFQUAT" by the company ISP, such as for example "GAFQUAT 734" or "GAFQUAT 755" or else the products called "COPOLYMER 845 , 958 and 937". These polymers are described in detail in French patents 2,077,143 and 2,393,573;

- dimethylaminoethyl methacrylate/vinylcaprolactam/vinylpyrrolidone terpolymers, such as the product sold under the name GAFFIX VC 713 by the company ISP,

- vinylpyrrolidone/methacrylamidopropyldimethylamine copolymers, such as those marketed under the name STYLEZE CC 10 by ISP;

- quaternized vinylpyrrolidone/dimethylaminopropyl methacrylamide copolymers, such as the product sold under the name "GAFQUAT HS 100" by the company ISP,

- polymers, preferably crosslinked, of methacryloyloxyalkyl (C ₁ -C ₄ ) trialkyl (C ₁ -C ₄ ) ammonium salts such as the polymers obtained by homopolymerization of dimethylaminoethyl methacrylate quaternized with methyl chloride, or by copolymerization of acrylamide with dimethylaminoethyl methacrylate quaternized with methyl chloride, the homo- or copolymerization being followed by cross-linking with an olefinically unsaturated compound, in particular methylene bisacrylamide. It is more particularly possible to use a crosslinked acrylamide/methacryloyloxyethyltrimethylammonium chloride copolymer (20/80 by weight) in the form of a dispersion comprising 50% by weight of the said copolymer in mineral oil. This dispersion is marketed under the name "SALCARE® SC 92" by the company CIBA. It is also possible to use a crosslinked homopolymer of methacryloyloxyethyltrimethylammonium chloride comprising approximately 50% by weight of the homopolymer in mineral oil or in a liquid ester. These dispersions are marketed under the names “SALCARE® SC 95” and “SALCARE® SC 96” by the company CIBA.

(2) cationic polysaccharides, in particular celluloses and gums of cationic galactomannans. Among the cationic polysaccharides, mention may more particularly be made of cellulose ether derivatives comprising quaternary ammonium groups, cationic cellulose copolymers or cellulose derivatives grafted with a water-soluble quaternary ammonium monomer and cationic galactomannan gums.

Cellulose ether derivatives comprising quaternary ammonium groups are described in particular in FR1492597, and mention may be made of the polymers marketed under the name "UCARE POLYMER JR" (JR 400 LT, JR 125, JR 30M) or "LR" (LR 400, LR 30M) by the AMERCHOL company. These polymers are also defined in the CTFA dictionary as quaternary ammoniums of hydroxyethylcellulose having reacted with an epoxide substituted by a trimethylammonium group.

Cationic cellulose copolymers or cellulose derivatives grafted with a water-soluble quaternary ammonium monomer are described in particular in patent US4131576, and mention may be made of hydroxyalkylcelluloses, such as hydroxymethyl-, hydroxyethyl- or hydroxypropyl celluloses grafted in particular with a salt methacryloylethyl trimethylammonium, methacrylamidopropyl trimethylammonium, dimethyl-diallylammonium. The marketed products corresponding to this definition are more particularly the products sold under the name "Celquat L 200" and "Celquat H 100" by the National Starch Company.

Cationic galactomannan gums are described more particularly in patents US3589578 and US4031307, and mention may be made of guar gums comprising cationic trialkylammonium groups. For example, guar gums modified with a salt (for example a chloride) of 2,3-epoxypropyl trimethylammonium are used. Such products are marketed in particular under the names JAGUAR C13 S, JAGUAR C 15, JAGUAR C 17 or JAGUAR C162 by the company RHODIA.

(3) polymers consisting of piperazinyl units and divalent alkylene or hydroxyalkylene radicals with straight or branched chains, optionally interrupted by oxygen, sulfur or nitrogen atoms or by aromatic or heterocyclic rings, as well as the products of oxidation and/or quaternization of these polymers.

(4) water-soluble polyaminoamides, prepared in particular by polycondensation of an acid compound with a polyamine; these polyaminoamides can be crosslinked by an epihalohydrin, a diepoxide, a dianhydride, an unsaturated dianhydride, a bis-unsaturated derivative, a bis-halohydrin, a bis-azetidinium, a bis-haloacyldiamine, a bis-alkyl halide or else by an oligomer resulting from the reaction of a bifunctional compound reactive with a bis-halohydrin, a bis-azetidinium, a bis-haloacyldiamine, a bis-alkyl halide, d an epilhalohydrin, a diepoxide or a bis-unsaturated derivative; the crosslinking agent being used in proportions ranging from 0.025 to 0.35 mole per amine group of the polyaminoamide; these polyaminoamides can be alkylated or if they contain one or more tertiary amine functions, quaternized.

(5) derivatives of polyaminoamides resulting from the condensation of polyalkylene polyamines with polycarboxylic acids followed by alkylation by bifunctional agents. Mention may be made, for example, of adipic acid-diacoylaminohydroxyalcoyldialoylene triamine polymers in which the alkyl radical contains from 1 to 4 carbon atoms and preferably denotes methyl, ethyl or propyl. Among these derivatives, mention may more particularly be made of the adipic acid/dimethylaminohydroxypropyl/diethylene triamine polymers sold under the name “Cartaretine F, F4 or F8” by the company Sandoz.

(6) polymers obtained by reaction of a polyalkylene polyamine comprising two primary amine groups and at least one secondary amine group with a dicarboxylic acid chosen from diglycolic acid and saturated aliphatic dicarboxylic acids having from 3 to 8 carbon atoms; the molar ratio between the polyalkylene polyamine and the dicarboxylic acid preferably being between 0.8:1 and 1.4:1; the resulting polyaminoamide being reacted with epichlorohydrin in a molar ratio of epichlorohydrin to secondary amine group of the polyaminoamide preferably between 0.5:1 and 1.8:1. Polymers of this type are in particular marketed under the name "Hercosett 57" by the company Hercules Inc. or else under the name "PD 170" or "Delsette 101" by the company Hercules in the case of the adipic acid copolymer /epoxypropyl/diethylene-triamine.

(7) alkyl diallyl amine or dialkyl diallyl ammonium cyclopolymers such as homopolymers or copolymers comprising, as main constituent of the chain, units corresponding to formulas (XXXI) or (XXXII):

in which

- k and t are equal to 0 or 1, the sum k + t being equal to 1;

- R ₁₂ denotes a hydrogen atom or a methyl radical;

- R ₁₀ and R ₁₁ , independently of one another, denote a C ₁ -C ₆ alkyl group, a C ₁ -C ₅ hydroxyalkyl group, a C ₁ -C ₄ amidoalkyl group; or alternatively R ₁₀ and R ₁₁ can denote, together with the nitrogen atom to which they are attached, a heterocyclic group such as piperidinyl or morpholinyl; R ₁₀ and R ₁₁ , independently of one another, preferably denote a C ₁ -C ₄ alkyl group;

- Y ^- is an anion such as bromide, chloride, acetate, borate, citrate, tartrate, bisulfate, bisulfite, sulfate, phosphate.

Mention may more particularly be made of the homopolymer of salts (for example chloride) of dimethyldiallylammonium, for example sold under the name "MERQUAT 100" by the company NALCO, and the copolymers of salts (for example chloride) of diallyldimethylammonium and of acrylamide marketed in particular under the name "MERQUAT 550" or "MERQUAT 7SPR".

(8) diquaternary ammonium polymers comprising recurring units of formula (XXXIII) below:

in which :

- R ₁₃ , R ₁₄ , R ₁₅ and R ₁₆ , which are identical or different, represent aliphatic, alicyclic or arylaliphatic radicals comprising from 1 to 20 carbon atoms or C ₁ -C ₁₂ hydroxyalkylaliphatic radicals,

or alternatively R ₁₃ , R ₁₄ , R ₁₅ and R ₁₆ , together or separately, constitute with the nitrogen atoms to which they are attached heterocycles optionally comprising a second heteroatom other than nitrogen

or alternatively R ₁₃ , R ₁₄ , R ₁₅ and R ₁₆ represent a linear or branched C ₁ -C ₆ alkyl radical substituted by a nitrile, ester, acyl, amide or -CO-OR ₁₇ -D or -CO-NH group -R ₁₇ -D where R ₁₇ is an alkylene and D a quaternary ammonium group;

- A ₁ and B ₁ represent divalent polymethylene groups comprising from 2 to 20 carbon atoms, linear or branched, saturated or unsaturated, and which may contain, linked to or intercalated in the main chain, one or more aromatic rings, or one or several oxygen or sulfur atoms or sulfoxide, sulfone, disulfide, amino, alkylamino, hydroxyl, quaternary ammonium, ureido, amide or ester groups; And

- X ^- denotes an anion derived from a mineral or organic acid;

it being understood that A ₁ , R ₁₃ and R ₁₅ can form with the two nitrogen atoms to which they are attached a piperazine ring;

in addition, if A ₁ denotes a linear or branched, saturated or unsaturated alkylene or hydroxyalkylene radical, B ₁ can also denote a group (CH ₂ )n-CO-D-OC-(CH ₂ ) _p -, with n and p, identical or different, being integers ranging from 2 to 20, and D denoting:

a) a glycol residue of formula -OZO-, where Z denotes a linear or branched hydrocarbon radical or a group corresponding to one of the following formulas: -(CH ₂ CH ₂ O) _x -CH ₂ CH ₂ - and - [CH ₂ CH(CH ₃ )O] _y -CH ₂ CH(CH ₃ )- where x and y denote an integer from 1 to 4, representing a defined and unique degree of polymerization or any number from 1 to 4 representing an average degree of polymerization;

b) a bis-secondary diamine residue such as a piperazine derivative;

c) a bis-primary diamine residue of formula -NH-Y-NH- where Y denotes a linear or branched hydrocarbon radical, or else the divalent radical -CH ₂ -CH ₂ -SS-CH ₂ -CH ₂ -;

d) a ureylene group of formula -NH-CO-NH-.

Preferably, X ^- is an anion such as chloride or bromide. These polymers have a number average molar mass (Mn) generally between 1000 and 100000.

Mention may more particularly be made of polymers which consist of recurring units corresponding to the formula:

in which R ₁ , R ₂ , R ₃ and R ₄ , which are identical or different, denote an alkyl or hydroxyalkyl radical having from 1 to 4 carbon atoms, n and p are integers ranging from 2 to 20, and X ^- is an anion derived from a mineral or organic acid.

A particularly preferred compound consisting of units of formula (XXXIV) is that for which R ₁ , R ₂ , R ₃ and R ₄ represent a methyl radical, n=3, p=6 and X=Cl, called Hexadimethrine chloride according to the nomenclature INCI (CTFA).

(9) quaternary polyammonium polymers comprising units of formula:

in which :

- R ₁₈ , R ₁₉ , R ₂₀ and R ₂₁ , which are identical or different, represent a hydrogen atom or a methyl, ethyl, propyl, β-hydroxyethyl, β-hydroxypropyl or -CH ₂ CH ₂ (OCH ₂ CH ₂ ) _p OH, where p is equal to 0 or to an integer between 1 and 6, provided that R ₁₈ , R ₁₉ , R ₂₀ and R ₂₁ do not simultaneously represent a hydrogen atom,

- r and s, identical or different, are whole numbers between 1 and 6,

- q is equal to 0 or an integer between 1 and 34,

- X ^- denotes an anion such as a halide,

- A denotes a divalent radical of a dihalide or preferably represents -CH ₂ -CH ₂ -O-CH ₂ -CH ₂ -.

Mention may be made, for example, of the products “Mirapol® A 15”, “Mirapol® AD1”, “Mirapol® AZ1” and “Mirapol® 175” sold by the company Miranol.

(10) Quaternary polymers of vinylpyrrolidone and vinylimidazole, such as for example the products marketed under the names Luviquat® FC 905, FC 550 and FC 370 by the company B.A.S.F.

(11) Polyamines such as Polyquart® H sold by Cognis, referenced under the name "POLYETHYLENEGLYCOL (15) TALLOW POLYAMINE" in the CTFA dictionary.

(12) polymers comprising in their structure:

(a) one or more grounds corresponding to the following formula (A):

(b) optionally one or more units corresponding to the following formula (B):

In other words, these polymers can be chosen in particular from homo- or copolymers comprising one or more units derived from vinylamine and optionally one or more units derived from vinylformamide.

Preferably, these cationic polymers are chosen from polymers comprising, in their structure, from 5 to 100% by moles of units corresponding to formula (A) and from 0 to 95% by moles of units corresponding to formula (B) , preferably from 10 to 100% by moles of units corresponding to formula (A) and from 0 to 90% by moles of units corresponding to formula (B).

These polymers can be obtained for example by partial hydrolysis of polyvinylformamide. This hydrolysis can take place in an acidic or basic medium.

The polymers comprising units of formula (A) and optionally units of formula (B) are in particular sold under the name LUPAMIN by the company BASF, such as for example, and in a non-limiting manner, the products offered under the name LUPAMIN 9095 , LUPAMIN 5095, LUPAMIN 1095, LUPAMIN 9030 (or LUVIQUAT 9030) and LUPAMIN 9010.

Preferably, the cationic polymers are chosen from those of families (1), (2), (7), (8) and (10) mentioned above, and even better from cationic polysaccharides, in particular celluloses and gums cationic galactomannans, and in particular quaternary cellulose ether derivatives such as the products sold under the name “JR 400” by the company AMERCHOL; cationic cyclopolymers, in particular homopolymers or copolymers of salts (for example chloride) of dimethyldiallylammonium, sold under the names MERQUAT 100, MERQUAT 550 and MERQUAT S by the company NALCO, quaternary polymers of vinylpyrrolidone and of vinylimidazole, homopolymers or copolymers optionally crosslinked methacryloyloxyalkyl(C ₁ -C ₄ )trialkyl(C ₁ -C ₄ )ammonium salts; polymers consisting of recurring units corresponding to formula (XXXIV) above, in particular the compound Hexadimethrine chloride according to the INCI nomenclature (CTFA), and mixtures thereof.

The total content of cationic polymer(s) in the washing composition A can vary from 0.05 to 5% by weight relative to the total weight of the washing composition A, preferably from 0.1 to 3% by weight , and preferably from 0.2 to 2% by weight, relative to the total weight of the washing composition A.

Within the meaning of the present invention, the expression "amphoteric polymer" denotes any non-silicone polymer (not comprising a silicon atom) containing cationic groups and/or groups which can be ionized into cationic groups, as well as anionic groups and/or or ionizable groups into anionic groups.

The one or more amphoteric polymers that may be present in the washing composition A can be chosen from amphoteric polymers comprising the repetition of:

(i) one or more units derived from a monomer of (meth)acrylamide type,

(ii) one or more units derived from a monomer of (meth)acrylamidoalkyltrialkylammonium type, and

(iii) one or more units derived from an acid monomer of (meth)acrylic acid type.

Preferably, the units derived from a monomer of (meth)acrylamide type are units of the following structure (Ia):

in which R ₁ denotes H or CH ₃ , and R ₂ is chosen from an amino, dimethylamino, tert-butylamino, dodecylamino or -NH-CH ₂ OH radical.

Preferably, said amphoteric polymer only comprises the repetition of a single unit of formula (Ia).

The unit resulting from a monomer of (meth)acrylamide type of formula (Ia) in which R ₁ denotes H and R ₂ is an amino radical (NH ₂ ) is particularly preferred. It corresponds to the acrylamide monomer itself.

Preferably, the units derived from a monomer of the (meth)acrylamido alkyltrialkylammonium type are units of the following structure (IIa):

in which :

- R ₃ denotes H or CH ₃ ,

- R ₄ denotes a (CH ₂ ) _k group, k being an integer ranging from 1 to 6, preferably from 2 to 4;

-R_5,R₆and R₇, identical or different, denote a C alkyl₁-VS₄,

- Y ^- is an anion such as bromide, chloride, acetate, borate, citrate, tartrate, bisulfate, bisulfite, sulfate, phosphate.

Preferably, said amphoteric polymer only comprises the repetition of a single unit of formula (IIa).

Among these units derived from a monomer of the (meth)acryl-amidoalkyltrialkylammonium type of formula (IIa), those derived from the methacrylamidopropyltrimethylammonium chloride monomer, for which R ₃ denotes a methyl radical, k is equal to 3, R ₅ , R ₆ are preferred. and R ₇ denote a methyl radical, and Y ^- denotes a chloride anion.

Preferably, the units derived from a monomer of (meth)acrylic acid type are units of formula (IIIa):

in which R ₈ denotes H or CH ₃ , and R ₉ denotes a hydroxyl radical or an –NH-C(CH ₃ ) ₂ -CH ₂ -SO ₃ H radical.

The preferred units of formulas (IIIa) correspond to the monomers acrylic acid, methacrylic acid and 2-acrylamino 2-methyl propane sulphonic acid.

Preferably, the unit derived from a monomer of (meth)acrylic acid type of formula (IIIa) is that derived from acrylic acid, for which R ₈ denotes a hydrogen atom and R ₉ denotes a hydroxyl radical.

The acid monomer(s) of (meth)acrylic acid type can be unneutralized, partially or totally neutralized, with an organic or inorganic base.

Preferably, said amphoteric polymer only comprises the repetition of a single unit of formula (IIIa).

According to a preferred embodiment of the invention, the amphoteric polymer(s) of this type comprise at least 30% by mole of units derived from a monomer of type (i) (meth)acrylamide. Preferably, they comprise from 30 to 70% by mole of units derived from a monomer of (meth)acrylamide type, more preferably from 40 to 60% by mole.

The content of units derived from a monomer of (ii) (meth)acrylamido alkyltrialkylammonium type can advantageously be from 10 to 60%, preferably from 20 to 55% in moles.

The content of units derived from an acid monomer of (iii) (meth)acrylic acid type can advantageously be from 1 to 20%, preferably from 5 to 15% by mole.

According to a particularly preferred embodiment of the invention, the amphoteric polymer of this type comprises:

- from 30 to 70% in moles of units derived from a monomer of type (i) (meth)acrylamide, more preferably from 40 to 60% in moles,

- from 10 to 60% by mole, preferably from 20 to 55% by mole, of units derived from a monomer of type (ii) (meth)acrylamido-alkyltrialkylammonium, and

- from 1 to 20% by mole, preferably from 5 to 15% by mole, of units derived from a monomer of type (iii) (meth)acrylic acid.

This type of amphoteric polymer can also comprise additional units, different from the units resulting from a monomer of the (meth)acrylamide type, of the (meth)acrylamidoalkyltrialkylammonium type and of the (meth)acrylic acid type as described above.

However, according to a preferred embodiment of the invention, said amphoteric polymers consist solely of units derived from monomers of type (i) (meth)acrylamide, type (ii) (meth)acrylamidoalkyltrialkylammonium and type (iii) acid (meth)acrylic.

As an example of particularly preferred amphoteric polymers, mention may be made of acrylamide/methacrylamidopropyltrimethylammonium chloride/acrylic acid terpolymers. Such polymers are listed in the CTFA (INCI) dictionary under the name “Polyquaternium 53”. Corresponding products are notably marketed under the names MERQUAT 2003 and MERQUAT 2003 PR by the company NALCO.

As another type of amphoteric polymer capable of being used, mention may also be made of copolymers based on (meth)acrylic acid and a dialkyldiallylammonium salt, such as copolymers of (meth)acrylic acid and dialkyldiallylammonium chloride. dimethyldiallyl ammonium. Mention may be made, for example, of Merquat 280 offered by the company NALCO.

More preferably, the washing cosmetic composition A comprises one or more amphoteric polymers chosen, alone or as a mixture, from acrylamide/methacrylamidopropyltrimethylammonium chloride/acrylic acid terpolymers, copolymers based on (meth)acrylic acid and a salt of dialkyldiallylammonium.

The amphoteric polymer(s) may be present in the washing composition A in a total amount of between 0.05 and 5% by weight, preferably between 0.1 and 3% by weight, and more particularly between 0.2 and 2% by weight, relative to the total weight of the washing composition A.

Advantageously, the washing composition A comprises one or more cationic polymers and one or more amphoteric polymers.

According to a preferred embodiment of the invention, the washing composition A according to the invention comprises:

- one or more anionic surfactants (i) chosen from polyoxyalkylenated alkyl(amido)ether carboxylic acids and their salts, preferably of formula (1) as defined above;

- one or more anionic surfactants (ii) chosen from sodium, triethanolamine, magnesium or ammonium (C ₁₂ -C ₁₄ )alkyl sulfates, and/or sodium (C ₁₂ -C ₁₄ )alkyl ether sulfates, ammonium or magnesium, oxyethylenated, for example from 1 to 10 moles of ethylene oxide; (C ₆ -C ₂₄ )acylisethionates, preferably (C ₁₂ -C ₁₈ )acylisethionates; alpha-olefin sulfonates;

- one or more nonionic surfactants chosen from, alone or as a mixture, (C ₆ -C ₂₄ alkyl) (poly)glycosides, and more particularly (C ₈ -C ₁₈ alkyl) (poly)glycosides;

- one or more amphoteric surfactants chosen from (C ₈ -C ₂₀ )alkyl betaines, (C ₈ -C ₂₀ )alkyl sulfobetaines, (C ₈ -C ₂₀ )alkylamido(C ₃ -C ₈ )alkyl betaines and (C ₈ -C ₂₀ )alkyl-amid(C ₆ -C ₈ )alkylsulfobetaines; And

- one or more polymers chosen from

- cationic polymers preferably having a cationic charge density greater than or equal to 3 meq/g, preferably chosen from dialkyldiallylammonium halide homopolymers or copolymers; And

- amphoteric polymers preferably consisting solely of units derived from monomers of (i) acrylamide type, of (ii) acrylamidoalkyltrialkylammonium type and of (iii) (meth)acrylic acid type.

The invention is illustrated in more detail in the following examples, in which the amounts are given in % by weight of active material (% MA), unless otherwise indicated.

Example 1

A hair care composition according to the invention was prepared comprising the following ingredients:

Ingredients % MY CETEARYL ALCOHOL (50/50) 12.2 CETYL ESTERS 1.2 SODIUM CETEARYL SULFATE 1.6 DIMETHICONE 500,000 cst 1 DIMETHICONE 50 cst 3.2 CAPRYLYL GLYCOL 0.2 BIS-CARBOXY DECYL DIMETHICONE 0.65 Dyes (mixture of YELLOW 5, BLUE 1, ORANGE 4, EXT. VIOLET 2 and ACID RED 18) 0.1 Conservatives qs Water Qsp 100%

A composition having a spontaneous pH of 3.2±0.2 is obtained. This composition can be used as a rinse-out conditioner; it brings softness, suppleness and smoothness to the touch to the hair.

Example 2

A / The following shampoo compositions were prepared:

Ingredients Shampoo A Shampoo B SODIUM LAURETH SULFATE 7 17.5 LAURETH-5 CARBOXYLIC ACID 6 - COCAMIDOPROPYL BETAINE 7 3 CAPRYLYL/CAPRYL GLUCOSIDE 3 - POLYQUATERNIUM-6 0.5 0.3 HEXADIMETHRIN CHLORIDE 0.5 - POLYQUATERNIUM 53 0.2 - GLYCERIN - 2 DIMETHICONE 60,000 cst - 0.75 GLYCOL DISTEARATE - 1.6 AMODIMETHICONE - 1 CARBOMER - 0.15 PPG-5-CETETH-20 - 0.9 NaCl 1.8 1.4 Conservatives Q's Q's pH agent qs pH= 5.5 +/- 0.3 qs pH= 5.5 +/- 0.3 Water Qsp 100% Qsp 100%

B/ A control hair care composition (hereinafter referred to as “control care”), identical to that of example 1, was also prepared, in which the BIS-CARBOXY DECYL DIMETHICONE was replaced by water.

C/ The following treatment was carried out on locks of 100% natural white hair, weighing 1 g, previously washed with a DOP shampoo.

Treatment :

Step 1: apply the shampoo composition (A or B above) at a rate of 0.4 g per g of lock, mix and lather, then rinse the locks with water for 15 seconds (approximately 15 strokes between the fingers; flow rate 300 l/h, 37°C)

Step 2: apply 0.4 g of hair care (example 1 or control care) per g of lock, leave on for 2 minutes, then rinse for 15 seconds (flow rate 300 l/h, 37°C) and dry the locks with the hair dryer.

D/ L*a*b* measurements are then carried out using a Minolta Spectrophotometer CM3600A colorimeter, in the CIELab system (illuminant D65, angle 10°) on the dry locks.

The rise in color is represented by the color difference (ΔE) between a treated lock and an untreated lock:

In this equation, L*, a* and b* represent the values measured on a treated lock, and L ₀ *, a ₀ * and b ₀ * represent the values measured on an untreated lock.

We get the following results:

Step 1 (shampoo) Step 2 (treatment) ΔE Shampoo A Treatment Example 1 11.28 Control treatment 6.46

Step 1 (shampoo) Step 2 (treatment) ΔE
Shampoo B Treatment Example 1 7.13 Control treatment 4.90

The greater the value of ΔE, the greater the rise in color.

It is found that, regardless of the shampoo used, the presence of an anionic silicone according to the invention in the care composition makes it possible to increase the rise in color.

The effect is even more marked when the shampoo contains carboxylic anionic surfactants and alkylpolyglucosides.

E/ A sensory evaluation is carried out on these same locks (dry locks), by 5 evaluators, blindly.

The criteria assessed are:

- the "smooth to the touch" character: take the 2 locks to be compared and slide the lock between the fingers, from the root to the tip. We evaluate if the hair has (or not) roughness, if it hangs (or not) the fingers.

Ratings range from 0 (not smooth) to 5 (very smooth), in steps of 0.5.

- suppleness: we take the hair with both hands and try to bend it. We assess whether the hair can be bent, bent easily, if it is malleable, if it resists (or not), if it is rigid or stiff (or not).

The scores range from 0 (not flexible) to 5 (very flexible), in steps of 0.5.

We get the following results:

Step 1 2nd step Smooth Flexibility Shampoo A Treatment Example 1 4 3 Control treatment 3 2

Step 1 2nd step Smooth Flexibility
Shampoo B Treatment Example 1 3.5 2.5 Control treatment 2.5 1.5

It is found that, regardless of the shampoo used, the presence of an anionic silicone according to the invention in the care composition makes it possible to increase the level of cosmetics (conditioning) provided to the hair.

Claims (16)

Cosmetic composition, in particular hair composition, comprising:
- one or more silicones containing a carboxylic group, and
- one or more anionic direct dyes. Composition according to Claim 1, comprising one or more silicones containing a carboxylic group chosen from the organosiloxanes of formula (I):

in which :
- R1 represent, independently of one another, an alkyl group having from 1 to 20 carbon atoms, preferably from 1 to 10 carbon atoms; an alkoxy group having 1 to 20 carbon atoms; or an aryl group having 6 to 12 carbon atoms;

- R2 represents:
a group -R4-COOM with R4 representing a linear or branched alkylene group, having from 1 to 20 carbon atoms, preferably from 4 to 16 carbon atoms and M representing H or a cosmetically acceptable counterion;
a pyrrolidone radical comprising a carboxylic group COOH; Or
a -R _a -(OR _b ) _x -COOM group with R _a representing a linear or branched alkylene group having from 1 to 4 carbon atoms, R _b representing an alkylene group having from 1 to 4 carbon atoms; x being an integer ranging from 1 to 200; and M representing H or a cosmetically acceptable counterion;

- R3 represent independently of each other,
an alkyl group having 1 to 20 carbon atoms;
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 and M representing H or a cosmetically acceptable counterion;
an alkoxy group having 1 to 20 carbon atoms;
an aryl group having 6 to 12 carbon atoms; Or
a -R _a -(OR _b ) _x -COOM group with R _a representing a linear or branched alkylene group having from 1 to 4 carbon atoms, R _b representing an alkylene group having from 1 to 4 carbon atoms; x being an integer ranging from 1 to 200; and M representing H or a cosmetically acceptable counterion;

- 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 at least one carboxylic group COOM, preferably at least one group COOH. Composition according to one of the preceding claims, comprising one or more silicones comprising at least one carboxylic group chosen from, alone or as a mixture,:
a/ the organosiloxanes of formula (II) below:

in which :
- R1 represent, independently of one another, 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; preferentially methyl;
- R4 represents, independently of one another, a linear or branched alkylene group having from 1 to 20 carbon atoms, preferably from 4 to 16 carbon atoms; or else 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 a whole number ranging from 1 to 200;
- M represents, independently of one another, a hydrogen atom or a cosmetically acceptable counter-ion, in particular an alkali or alkaline-earth metal or a quaternary ammonium, in particular NR'3, with identical or different R', representing H or C1-C4 alkyl;
- n denotes an integer ranging from 1 to 1000;
preferably, the organosilanes of formula (II) comprising at least one COOH group, better still at least two COOH groups, even better still two COOH groups;

b/ the organosiloxanes of formula (III) below:

in which :
- R1 represent, independently of each other, an alkyl group having from 1 to 10 carbon atoms, preferably from 1 to 6 carbon atoms, more preferably a methyl;
- R4 represents a linear or branched alkylene group having 1 to 20 carbon atoms, preferably 4 to 16 carbon atoms; or else 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 a whole number ranging from 1 to 200;
- M represents, independently of one another, a hydrogen atom or a cosmetically acceptable counter-ion, in particular an alkali or alkaline-earth metal or a quaternary ammonium, in particular NR'3, with identical or different R', representing H or C1-C4 alkyl;
- p denotes an integer ranging from 1 to 1000;
- n denotes an integer ranging from 1 to 1000;
preferably, the organosilanes of formula (III) comprising at least one COOH group;
c/ the organosiloxanes of the following formula (IV):

in which :
- R1 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; preferentially methyl;
- R4 represents a linear or branched alkylene group having 1 to 20 carbon atoms, preferably 4 to 16 carbon atoms; or else 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 a whole number ranging from 1 to 200;
- R3 represents an alkyl group having 1 to 20 carbon atoms; an alkoxy group having 1 to 20 carbon atoms or an aryl group having 6 to 12 carbon atoms;
- M represents, independently of one another, a hydrogen atom or a cosmetically acceptable counter-ion, in particular an alkali or alkaline-earth metal or a quaternary ammonium, in particular NR'3, with identical or different R', representing H or C1-C4 alkyl;
- n denotes an integer ranging from 1 to 1000;
preferably, the organosilanes of formula (IV) comprising at least one COOH group, better still a single COOH group;
d/ the organosiloxanes of the following formula (V):

in which :
- R8 represents an alkyl group having 1 to 6 carbon atoms, preferably a methyl;
- m denotes an integer ranging from 1 to 1000; And
- n designates an integer ranging from 1 to 1000. Composition according to one of the preceding claims, comprising one or more silicones comprising at least one carboxylic group chosen from the organopolysiloxanes of formula (IIa):

in which :
- R1 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; preferentially methyl; even better, all the R1 are identical and represent a methyl radical;
- R4 independently represents a linear or branched alkylene group, having from 1 to 20 carbon atoms, preferably from 4 to 16 carbon atoms, better still from 6 to 14 carbon atoms, or even from 8 to 12 carbon atoms; preferably, the R4 are identical;
- n designates an integer ranging from 1 to 1000. Composition according to one of the preceding claims, comprising one or more silicones containing a carboxylic group in a total quantity ranging from 0.01 to 10% by weight, preferably from 0.1 to 8% by weight, in particular from 0.2 to 5% by weight, even better from 0.3 to 3% by weight, even from 0.4 to 2% by weight, even better from 0.5 to 1.5% by weight, relative to the total weight of the composition cosmetic. Composition according to one of the preceding claims, comprising one or more anionic direct dyes chosen from acid nitro direct dyes, acid azo dyes, acid azine dyes, acid triarylmethane dyes, acid indoamine dyes, acid anthraquinone dyes, acid indigoids, acidic natural dyes and mixtures thereof, each of these dyes having at least one sulphonate or carboxylate group;
and in particular chosen from the dyes of formulas (II), (II'), (III), (III'), (IV), (IV'), (V), (V'), (VI), (VII ), (VIII) and (IX) below:
a) diaryl anionic azo dyes of formula (II) or (II')


in which,

• R ₇ , R ₈ , R ₉ , R ₁₀ , R' ₇ , R' ₈ , R' ₉ and R' ₁₀ , which are identical or different, represent a hydrogen atom or a group chosen from:
• alkyl;
• alkoxy, alkylthio;
• hydroxy, mercapto;
• nitro,
• R°-C(X)-X'-, R°-X'-C(X)-, R°-X'-C(X)-X''- with R° representing a hydrogen atom, a 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;
• (O) ₂ S(O ^- )-M ⁺ , with M ⁺ representing a cationic counter ion such as an alkali metal (Na, K) or an alkaline-earth metal (Ca);
• (O)CO ^- -M ⁺ , with M ⁺ as defined above;
• R''-S(O) ₂ ^- , with R'' representing a hydrogen atom, an alkyl group, an aryl group, (di)(alkyl)amino, aryl(alkyl)amino; preferably a phenylamino or phenyl group;
• R'''-S(O) ₂ -X'- with R''' representing an optionally substituted alkyl or aryl group, X' as defined above;
• (di)(alkyl)amino;
• aryl(alkyl)amino optionally substituted with one or more groups chosen from i) nitro; ii) nitroso; iii) (O) ₂ S(O ^- )-M ⁺ and iv) alkoxy, with M ⁺ as defined above;
• optionally substituted heteroaryl; preferably a benzothiazolyl group;
• cycloalkyl; in particular cyclohexyl,
• Ar-N=N- with Ar representing an optionally substituted aryl group; preferably a phenyl optionally substituted by one or more alkyl, (O) ₂ S(O ^- ) -M ⁺ or phenylamino groups;
• or two contiguous groups R ₇ with R ₈ or R ₈ with R ₉ or R ₉ with R ₁₀ together form a fused group benzo A'; and R' ₇ with R' ₈ or R' ₈ with R' ₉ or R' ₉ with R' ₁₀ together form a fused benzo group B'; with A' and B' optionally substituted by one or more groups chosen from i) nitro; ii) nitroso; iii) (O) 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''-; x) Ar-N=N- and xi) optionally substituted aryl(alkyl)amino; with M ⁺ , R°, X, X', X'' and Ar as defined above;
• W represents a sigma s bond, an oxygen or sulfur atom, or a divalent radical i) –NR- with R as previously defined, or ii) methylene -C(R _a )(R _b )- with R _a and R _b which are identical or different, representing a hydrogen atom or an aryl group, or else R _a and R _b together with the carbon atom which bears them form a spiro cycloalkyl; preferably W represents a sulfur atom or R _a and R _b together form a cyclohexyl;

it being understood that formulas (II) and (II') comprise at least one sulphonate radical (O)₂N(O^-)-M⁺or carboxylate (O)C(O^-)-M⁺on one of the cycles A, A', B, B' or C with M⁺as previously defined.
b) the anionic azo dyes pyrrazolone of formula (III) and (III')


in which,

• R ₁₁ , R ₁₂ and R ₁₃ , which are identical or different, represent a hydrogen atom, a halogen atom, an alkyl group or -(O) ₂ S(O ^- ), M ⁺ with M ⁺ as defined previously;
• R ₁₄ represents a hydrogen atom, an alkyl group or a -C(O)O ^- group, M ⁺ with M ⁺ as defined previously;
• R ₁₅ represents a hydrogen atom;
• R ₁₆ represents an oxo group in which case R' ₁₆ is absent, or else R ₁₅ with R ₁₆ together form a double bond;
• R ₁₇ and R ₁₈ , identical or different, represent a hydrogen atom, or a group chosen from:
• (O) ₂ S(O ^- ), M ⁺ with M ⁺ as defined above;
• Ar-OS(O) ₂ ^- with Ar representing an optionally substituted aryl group; preferably a phenyl optionally substituted by one or more alkyl groups;
• R ₁₉ and R ₂₀ together form either a double bond or an optionally substituted benzo group D';
• R′ ₁₆ , R′ ₁₉ and R′ ₂₀ , which are identical or different, represent a hydrogen atom or an alkyl or hydroxy group;
• R ₂₁ represents a hydrogen atom, an alkyl or alkoxy group;
• R _a and R _b , which are identical or different, are as defined above, preferably R _a represents a hydrogen atom and R _b represents an aryl group;
• Y represents either a hydroxy group or an oxo group;
• represents a single bond when Y is oxo; and represents a double bond when Y represents a hydroxy group;

it being understood that the formulas (III) and (III') comprise at least one sulphonate group (O)₂N(O^-), M⁺on one of the rings D or E or the formulas (III) and (III') comprise at least one carboxylate group (O)C(O^-), M⁺with M⁺as previously defined.
c) anthraquinone dyes of formula (IV) and (IV')

in which,

• R ₂₂ , R ₂₃ , R ₂₄ , R ₂₅ , R ₂₆ and R ₂₇ , identical or different, represent a hydrogen atom, a halogen atom, or a group chosen from:
• alkyl;
• hydroxy, mercapto;
• alkoxy, alkylthio;
• optionally substituted aryloxy or arylthio, preferentially substituted by one or more groups chosen from alkyl and (O) ₂ S(O ⁻ ), M ⁺ with M ⁺ as defined previously;
• aryl(alkyl)amino optionally substituted by one or more groups chosen from alkyl and (O) ₂ S(O ⁻ ), M ⁺ with M ⁺ as defined previously;
• (di)(alkyl)amino;
• (di)(hydroxyalkyl)amino
• (O) ₂ S(O ^- ), M ⁺ with M ⁺ as defined above;
• Z' represents a hydrogen atom or an NR ₂₈ R ₂₉ group with R ₂₈ and R ₂₉ , which are identical or different, represent a hydrogen atom or a group chosen from:
• alkyl;
• polyhydroxyalkyl such as hydroxyethyl;
• aryl optionally substituted by one or more particularly i) alkyl groups such as methyl, n-dodecyl, n-butyl; ii) (O) ₂ S(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 above, preferably R° represents an alkyl group;
• cycloakyl; in particular cyclohexyl;
• Z represents a group chosen from hydroxy and NR′ ₂₈ R′ ₂₉ with R′ ₂₈ and R′ ₂₉ , which are identical or different, represent the same atoms or groups as R ₂₈ and R ₂₉ as defined previously;

it being understood that the formulas (IV) and (IV') comprise at least one sulphonate group (O)₂N(O^-), M⁺with as previously defined.
d) dyes corresponding to formulas (V) and (V')


in which,

• R ₃₀ , R ₃₁ and R ₃₂ , which are identical or different, represent a hydrogen or halogen atom, or a group chosen from:
• alkyl;
• alkoxy optionally substituted by one or more hydroxy groups, alkylthio optionally substituted by one or more hydroxy groups;
• hydroxy, mercapto;
• nitro, nitroso;
• (poly)haloalkyl;
• R°-C(X)-X'-, R°-X'-C(X)-, R°-X'-C(X)-X''- with R°; X, X' and X'' as defined previously;
• (O) ₂ S(O ^- ), M ⁺ with M ⁺ as defined above;
• (O)CO ^- , M ⁺ with M ⁺ as defined previously;
• (di)(alkyl)amino;
• (di)(hydroxyalkyl)amino;
• heterocycloalkyl such as piperidino, piperazino or morpholino;

particularly R₃₀, R₃₁and R₃₂represent a hydrogen atom;

• Rc and Rd, identical or different, represent a hydrogen atom or an alkyl group;
• W is as previously defined; W particularly represents an –NH– group;
• ALK represents a divalent, linear or branched, C ₁ -C ₆ alkylene group; particularly ALK represents a –CH ₂ -CH ₂ - group;
• n is 1 or 2;
• p represents an integer comprised inclusively between 1 and 5;
• q represents an integer comprised inclusively between 1 and 4;
• u is 0 or 1;
• when n is 1, J represents a nitro or nitroso group; especially nitro;
• when n is 2, J represents an oxygen or sulfur atom, or a divalent radical –S(O) _m – with m representing an integer 1 or 2; preferably J represents a –SO ₂ – radical;
• M' is as previously defined for M ⁺ ;

present or absent represents a benzo group optionally substituted by one or more R groups₃₀as previously defined;
it being understood that the formulas (V) and (V') comprise at least one sulphonate group (O)₂N(O^-), M⁺or carboxylate (O)C(O^-), M⁺with M⁺as previously defined.
e) triarylmethane dyes of formula (VI)

in which,

• R ₃₃ , R ₃₄ , R ₃₅ and R ₃₆ , which are identical or different, represent a hydrogen atom or a group chosen from alkyl, optionally substituted aryl and optionally substituted arylalkyl; particularly an alkyl and benzyl group optionally substituted by a group (O) _m S(O ⁻ )—M ⁺ with M ⁺ and m as defined above;
• R ₃₇ , R ₃₈ , R ₃₉ , R ₄₀ , R ₄₁ , R ₄₂ , R ₄₃ and R ₄₄ , identical or different, represent a hydrogen atom or a group chosen from:
• alkyl;
• alkoxy, alkylthio;
• (di)(alkyl)amino;
• hydroxy, mercapto;
• nitro, nitroso;
• R°-C(X)-X'-, R°-X'-C(X)-, R°-X'-C(X)-X''- with R° representing a hydrogen atom, a 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;
• (O) ₂ S(O ^- ), M ⁺ with M ⁺ representing a hydrogen atom or a cationic counterion;
• (O)CO ^- , M ⁺ with M ⁺ as defined above;
• or else two contiguous groups R ₄₁ with R ₄₂ or R ₄₂ with R ₄₃ or R ₄₃ with R ₄₄ together form a fused benzo group: I'; with I' optionally substituted by one or more groups chosen from i) nitro; ii) nitroso; iii) (O) ₂ S(O ^- ), M ⁺ ; iv) hydroxy; (v) mercapto; vi) (di)(alkyl)amino; vii) R°-C(X)-X'-; viii) R°-X'-C(X)-; ix) R°-X'-C(X)-X''-; with M ⁺ , R°, X, X′, X″ as defined previously;

particularly R₃₇to R₄₀represent a hydrogen atom, and R₄₁to R₄₄, identical or different represent a hydroxy group or (O)₂N(O^-)-M⁺; and when R₄₃with R₄₄together form a benzo group, it is preferentially substituted by a group (O)₂N(O^-)-;
it being understood that at least one of the rings G, H, I or I' comprises at least one sulphonate group (O)₂N(O^-)-M⁺or carboxylate (O)C(O^-)-M⁺with M⁺as defined previously.
f) dyes derived from xanthene of formula (VII)

in which,

• R ₄₅ , R ₄₆ , R ₄₇ and R ₄₈ , which are identical or different, represent a hydrogen atom or a halogen atom;
• R ₄₉ , R ₅₀ , R ₅₁ and R ₅₂ , which are identical or different, represent a hydrogen or halogen atom, or a group chosen from:
• alkyl;
• alkoxy, alkylthio;
• hydroxy, mercapto;
• nitro, nitroso;
• (O) ₂ S(O ^- ), M ⁺ with M ⁺ representing a hydrogen atom or a cationic counterion;
• (O)CO ^- , M ⁺ with M ⁺ as defined previously;

particularly R₅₃R₅₄, R₅₅and R₄₈represent a hydrogen or halogen atom;

• G represents an oxygen or sulfur atom or an NR _e group with R _e as defined previously; particularly G represents an oxygen atom;
• L represents an O ^- , M ⁺ alkoxide; a thioalcoholate S ⁻ , M ⁺ or an NR _f group, with R _f representing a hydrogen atom or an alkyl group, and M ⁺ as defined previously; M ⁺ is particularly sodium;
• L' represents an oxygen or sulfur atom or an ammonium group: N ⁺ R _f R _g , with R _f and R _g , identical or different, representing a hydrogen atom, an optionally substituted alkyl or aryl group; L' represents in particular an oxygen atom or a phenylamino group optionally substituted by one or more alkyl groups or (O) _m S(O ⁻ ), M ⁺ with m and M ⁺ as defined previously;
• Q and Q', identical or different, represent an oxygen or sulfur atom; particularly Q and Q' represent an oxygen atom;
• M ⁺ is as defined previously;

it being understood that formula (VII) comprises at least one sulphonate group (O)₂N(O^-), M⁺or carboxylate (O)C(O^-), M⁺with M⁺as previously defined.
g) indole-derived dyes of formula (VIII)

in which,

• R ₅₃ , R ₅₄ , R ₅₅ , R ₅₆ , R ₅₇ , R ₅₈ , R ₅₉ and R ₆₀ , identical or different, represent a hydrogen atom or a group chosen from:
• alkyl;
• alkoxy, alkylthio;
• hydroxy, mercapto;
• nitro, nitroso;
• R°-C(X)-X'-, R°-X'-C(X)-, R°-X'-C(X)-X''- with R° representing a hydrogen atom, a 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;
• (O) ₂ S(O ^- ), M ⁺ with M ⁺ as defined previously;
• (O)CO ^- , M ⁺ with M ⁺ as defined previously;
• G represents an oxygen or sulfur atom or an NR _e group with R _e as defined previously; particularly G represents an oxygen atom;
• R _i and R _h , which are identical or different, represent a hydrogen atom or an alkyl group;

it being understood that the formula (VIII) comprises at least one sulphonate group (O)₂N(O^-), M⁺or carboxylate (O)C(O^-), M⁺with M⁺as previously defined.
h) dyes derived from quinoline of formula (IX)

in which,

• R ₆₁ represents a hydrogen atom, halogen atom or an alkyl group;
• R ₆₂ , R ₆₃ , and R ₆₄ , which are identical or different, represent a hydrogen atom or an (O) ₂ S(O ⁻ ) group, M ⁺ with M ⁺ as defined previously;
• or else R ₆₁ with R ₆₂ , or R ₆₁ with R ₆₄ , together form a benzo group optionally substituted by one or more groups (O) ₂ S(O ^- ), M ⁺ with M ⁺ representing a hydrogen atom or a cationic counterion;

it being understood that formula (IX) comprises at least one sulphonate group (O)₂N(O^-), M⁺with M⁺as previously defined.
i) the mesomers and tautomers of formulas (II) to (IX); And
j) their mixtures. Composition according to one of the preceding claims, comprising one or more anionic direct dyes chosen from the following dyes: (IC 45380) Acid Red 87 belonging to the formula (VII) (Cl 10316) salts of 2,4-dinitro-1-naphthol-7-sulfonic acid belonging to the formula (V') (Cl 10383) Acid Orange 3 belonging to the formula (V) (Cl 13015) Acid Yellow 9 / Food Yellow 2 belonging to formula (II) (Cl 14780) Direct Red 45 / Food Red 13 belonging to formula (II) (Cl 13711) Acid Black 52 belonging to the formula (II) (Cl 13065) Acid Yellow 36 belonging to the formula (II) (Cl 14700) 1-Hydroxy-2-(2',4'-xylyl-5-sulfonatoazo)-naphthalene-4-sulfonic acid salt / Food Red 1 belonging to the formula (II) (Cl 14720) Acid Red 14 / Food Red 3 / Mordant Blue 79 belonging to formula (II) (C.l. 14805) 4-Hydroxy-3-[(2-metoxy-5-.nitrophenyl)diaza]-6-(phenylamino)naphthalene-2-sulfonic acid / Acid Brown 4 salt belonging to the formula (II) (Cl 15510) Acid Orange 7 / Pigment Orange 17 / Solvent Orange 49 belonging to the formula (II) (Cl 15985) Food Yellow 3 / Pigment Yellow 104 belonging to formula (II) (Cl 16185) Acid Red 27 / Food Red 9 belonging to formula (II) (Cl 16230) Acid Orange 10 / Food Orange 4 belonging to formula (II) (Cl 16250) Acid Red 44 belonging to the formula (II) (Cl 17200) Acid Red 33 / Food Red 12 belonging to formula (II) (Cl 15685) Acid Red 184 belonging to the formula (II) (Cl 19125) Acid Violet 3 belonging to the formula (II) (IC 18055) 1-Hydroxy-2-(4'-acetamido phenylazo)-8-acetamido-naphthalene-3,6-disulphonic acid / Acid Violet 7 / Food Red 11 salt belonging to the formula (II) (Cl 18130) Acid Red 135 belonging to the formula (II) (Cl 19130) Acid Yellow 27 belonging to the formula (III) (Cl 19140) Acid Yellow 23 / Food Yellow 4 belonging to formula (III) (Cl 20170) 4'-(sulfonato-2'',4''-dimethyl)-bis-(2,6-phenylazo)-1,3-dihydroxy benzene / Acid Orange 24 belonging to the formula (II) (Cl 20470) 1-Amino-2-(4'-nitrophenylazo)-7-phenylazo-8-hydroxy-naphthalene-3,6-disulphonic acid salt / Acid Black 1 (II) (Cl 23266) (4-((4-methylphenyl)sulfonyloxy)-phenylazo)2,2'-dimethyl-4-((2-hydroxy-5,8-disulfonato)naphthylazo)biphenyl / Acid Red 111 belonging to the formula (II') (Cl 27755) Food Black 2 belonging to formula (II) (Cl 25440) 1-(4'-sulfonatophenylazo)-4-((2"-hydroxy-3"-acetylamino-6",8"-disulfonato)naphthylazo)-6-sulfonatonaphthalene (tetrasodium salt) / Food Black 1 belonging to the formula ( II) (IC 42090) Acid Blue 9 belonging to the formula (VI) (IC 60730) Acid Violet 43 belonging to the formula (IV) (IC 61570) Acid Green 25 belonging to the formula (IV) (IC 62045) 1-Amino-4-cyclohexylamino-9,10-anthraquinone 2-sulfonic acid / Acid Blue 62 salt belonging to the formula (IV) (IC 62105) Acid Blue 78 belonging to formula (IV) (Cl 14710) 4-Hydroxy-3((2-methoxy phenyl)-azo)-1-naphthalene sulfonic acid salt / Acid Red 4 belonging to the formula (II) 2-piperidino 5-nitro benzene sulphonic acid belonging to the formula (V') 2(4'-N,N(2"-hydroxyethyl)amino-2'-nitro)aniline ethane sulfonic acid belonging to the formula (V') 4-β-Hydroxyethylamino-3-nitrobenzeneSulphonic acid belonging to the formula (V') (IC 42640) Acid Violet 49 belonging to the formula (VI) (IC 42080) Acid Blue 7 belonging to the formula (VI) (IC 58005) ammonium salts of 1,2-dihydroxy-3-sulfo-anthraquinone / Mordant Red 3 belonging to the formula (IV) (IC 62055) 1-Amino-9,10-dihydro-9,10-dioxo-4-(phenylamino)2-anthracene sulfonic acid/Acid Blue 25 salt belonging to the formula (IV) Composition according to one of the preceding claims, comprising the anionic direct dye(s) in a content ranging from 0.001 to 10% by weight, preferably from 0.005 to 8% by weight, better still from 0.01 to 5% by weight, and even better 0.05 to 2% by weight, relative to the total weight of the composition. Composition according to one of the preceding claims, comprising one or more fatty alcohols of R-OH structure with R denoting a hydrocarbon group, saturated or unsaturated, linear or branched, optionally substituted by one or more hydroxy groups, comprising from 8 to 32 atoms carbon, preferably from 10 to 28 carbon atoms, even better from 12 to 24 carbon atoms, or even from 14 to 20 carbon atoms; preferably, R being a (saturated), linear or branched, preferably linear, alkyl group comprising from 12 to 24 carbon atoms, better still from 14 to 20 carbon atoms. Composition according to one of the preceding claims, comprising the fatty alcohol(s) in a total amount ranging from 5 to 25% by weight, in particular from 8 to 20% by weight, preferably from 10 to 15% by weight, relative to the weight total of the composition and/or comprising the solid fatty alcohol(s) in a total amount ranging from 5 to 25% by weight, in particular from 8 to 20% by weight, preferably from 10 to 15% by weight, relative to the total weight of composition. Composition according to one of the preceding claims, comprising one or more anionic surfactants; chosen in particular from sulphate, sulphonate and/or carboxylic surfactants; in particular among alone or in mixture:
- acylglutamates, in particular C6-C24, or even C12-C20, such as stearoylglutamates, and in particular disodium stearoylglutamate;
- acylsarcosinates, in particular C6-C24, or even C12-C20, such as palmitoylsarcosinates, and in particular sodium palmitoylsarcosinate;
- acyllactylates, in particular C12-C28, or even C14-C24, such as behe-noyllactylates, and in particular sodium behenoyllactylate;
- C6-C24 acylglycinates, in particular C12-C20;
- alkyl (C6-C24) ether carboxylates, and in particular alkyl (C12-C20) ether carboxylates; in particular those comprising from 2 to 50 ethylene oxide groups;
- polyoxyalkylenated alkyl(C6-C24)amidoether carboxylic acids, in particular those comprising from 2 to 50 ethylene oxide groups;
- C6-C24 olefinsulfonates, in particular C12-C20,
- C6-C24, in particular C12-C20, alkylsulfosuccinates, in particular laurylsulfosuccinates.
- C6-C24, in particular C12-C20, alkyl ether sulfosuccinates;
- (C6-C24)acylisethionates, preferably (C12-C18)acylisethionates,
- alkyl sulphates, in particular C6-C24, or even C12-C20,
- alkyl ether sulfates, in particular C6-C24, or even C12-C20, preferably comprising from 2 to 20 ethylene oxide units;
in particular in the form of alkali or alkaline-earth metal, ammonium or aminoalcohol salts. Composition according to one of the preceding claims, comprising the anionic surfactant(s) in a total amount ranging from 0.1 to 20% by weight, in particular from 0.5 to 15% by weight, better still from 0.8 to 10% by weight, even better from 1 to 5% by weight, relative to the total weight of the composition. Composition according to one of the preceding claims, comprising one or more additional silicones, other than silicones containing a carboxylic group; and in particular chosen from, alone or as a mixture, polydialkylsiloxanes and in particular polydimethylsiloxanes (PDMS), polydiarylsiloxanes, polyalkylarylsiloxanes, silicone gums and resins, as well as organopolysiloxanes; in particular chosen from, alone or as a mixture, polydimethylsiloxanes, in particular those having a weight-average molecular weight (Mw) of between 200 and 500,000, preferably between 500 and 300,000; preferably in a total amount ranging from 0.1 to 15% by weight, in particular from 1 to 10% by weight, preferably from 2 to 6% by weight, relative to the total weight of the composition. Composition according to one of the preceding claims, comprising water at a content ranging from 40 to 95% by weight, in particular from 55 to 90% by weight, better still from 65 to 85% by weight, relative to the total weight of the composition. Process for the cosmetic treatment of keratin fibers, in particular a process for the capillary treatment of the hair, in which a cosmetic composition as defined in one of Claims 1 to 14 is applied to the said fibers; the step of applying the composition possibly being followed by a step of applying the composition to the fibers, and/or a step of rinsing the fibers, for example with water, and/or a step of drying the keratin fibres. Process for the cosmetic treatment of keratin fibres, in particular human keratin fibers such as the hair, comprising:
- at least one step (a) of application to said keratin fibers of a washing cosmetic composition A, comprising (i) one or more anionic surfactants chosen from polyoxyalkylenated alkyl(amido)ether carboxylic acids and their salts;
- at least one step (b) of application to said keratin fibers of a cosmetic composition as defined in one of claims 1 to 14.