FR2989581A1 - Dyeing keratin fiber e.g. hair, involves applying dye composition including oxidation dye precursor, oxidizing composition including chemical oxidizing agent and compositions comprising unsaturated fatty acid and fatty alcohol to fiber - Google Patents

Abstract

Dyeing keratin fiber comprises applying a mixture obtained from a dye composition comprising an oxidation dye precursor, an oxidizing composition comprising a chemical oxidizing agent and a mixture of compositions comprising 8-40C unsaturated fatty acid and 8-30C fatty alcohol that is liquid at an ambient temperature and an atmospheric pressure to keratinous fibers, where the compositions are supplied from a pressurized container. An independent claim is included for a device for dyeing keratinous fibers, comprising a first container containing the dye composition, a second container containing the oxidizing composition, and a unit for delivering the compositions, where the mixture of compositions comprises 8-40C unsaturated fatty acid and fatty alcohol that is liquid at an ambient temperature and an atmospheric pressure and the containers are pressurized containers.

Description

The present invention relates to a hair dyeing process using a mixture comprising at least one mixture comprising at least one coloring compound comprising at least one coloring compound comprising at least one coloring compound comprising at least one coloring compound. an unsaturated fatty acid and a liquid fatty alcohol, said mixture being obtained from two compositions, at least one of which is packaged in a pressurized container, and a device suitable for carrying out this process. Among the methods for staining human keratinous fibers, such as the hair, mention may be made of oxidation or permanent staining. More particularly, this mode of staining uses one or more oxidation dyes, usually one or more oxidation bases possibly associated with one or more couplers. In general, the oxidation bases are chosen from ortho- or para-phenylenediamines, ortho- or para-aminophenols as well as heterocyclic compounds. These oxidation bases are colorless or weakly colored compounds which, combined with oxidizing products, allow access to colored species. Very often, the shades obtained with these oxidation bases are varied by combining them with one or more couplers, the latter being chosen in particular from aromatic meta-diamines, meta-aminophenols, meta-diphenols and certain heterocyclic compounds, such as indole compounds.

The variety of molecules involved in the oxidation bases and couplers allows a rich palette of colors to be obtained. The permanent coloring processes therefore consist in using with the dyeing composition an aqueous composition comprising at least one oxidizing agent such as hydrogen peroxide, under alkaline pH conditions in the vast majority of cases. The alkaline agent conventionally used is ammonia or other alkaline agents, such as alkanolamines. The coloring compositions may be in various forms such as lotions, gels, emulsions, creams or foams. These compositions, in particular the compositions comprising oxidation dyes, are obviously sensitive to oxidation and contain this makes reducing agents or antioxidants. This protective action against oxidation is further enhanced by the inert atmosphere that is sometimes used in the packaging of these compositions.

The difficulty encountered with this type of compositions results precisely from their sensitivity to oxidation. Indeed, during their use, they are placed in contact with the oxygen of the air and this then requires that they be used quickly. Otherwise, the compositions become unusable after storage and are lost. There are in the field of hair dyeing, compositions which are packaged in pressurized containers and which make it possible to prevent the composition from coming into contact with the air during their use, as is described, for example, in the documents US 2010/0236570 or FR 2 048 629.

However, the coverage of the hair, more particularly the white hair, remains to be improved as well as the galenic quality of the product from the pressurized container. There is a constant need to develop oxidation dyeing compositions in aerosol form, which are easy to prepare and apply, which remain sufficiently stable over time and while maintaining effective dyeing properties, especially in terms of hair coverage. , in particular white hair, but also intensity, homogeneity and chromaticity of the coloring obtained.

This and other objects are achieved by the present invention which relates to a process for dyeing keratin fibers in which a mixture obtained from: - a dyeing composition comprising at least one dye precursor on said fibers is applied to said fibers; oxidizing, and - an oxidizing composition comprising at least one chemical oxidizing agent, - at least one of the compositions being delivered from a pressurized device - the mixture of the two compositions comprising at least one C 8 fatty acid C40, unsaturated, in acidic or salified form; and comprising at least one C8-C30 fatty alcohol liquid at room temperature and at atmospheric pressure. It also relates to a device suitable for carrying out the process according to the invention, comprising: a first container containing a coloring composition comprising at least one oxidation dye precursor, and a second container containing an oxidizing composition comprising at least one oxidation dye precursor comprising: at least one chemical oxidizing agent, at least one of the containers being pressurized, preferably both containers being pressurized; means for delivering the compositions; the mixture of the two compositions comprising at least one unsaturated C 8 -C 40 fatty acid, in acid or salified form; and comprising at least one C 8 -C 30 fatty alcohol liquid at ambient temperature and at atmospheric pressure. Preferably, the composition used in the process according to the invention is in the form of a foam which is particularly pleasant to apply. It has a light and airy texture, which makes it particularly pleasant to use. The qualities of the foam are sufficiently persistent over time to allow application of the product of homogeneous color and without sagging.

The composition of the invention makes it possible to retain dyeing properties such as the power of color, resistance to external agents (shampoos, perspiration, light) and selectivity, and especially the coverage of white hair. Other characteristics and advantages of the invention will emerge more clearly on reading the description and examples which follow. In what follows, and unless otherwise indicated, the boundaries of a domain of values are included in this field. The term "at least one" associated with an ingredient in the composition means "one or more". The terms oxyalkylenated, oxyethylenated, oxypropylenated, glycerol, respectively cover mono- or polyoxyalkylenated compounds, oxyethylenated, oxypropylenated, glycerolated unless otherwise specified. Unless otherwise indicated, the contents of the ingredients present in the compositions are indicated without taking into account the propellant content (s). The human keratinous fibers treated by the process according to the invention are preferably the hair. Unsaturated fatty acid As indicated previously, the mixture used in the context of the invention comprises at least one unsaturated C 8 -C 40 fatty acid, in acid or salified form.

More particularly, the unsaturated fatty acid (s) are (C 8 -C 40), preferably (C 8 -C 30), linear or branched, optionally bearing one or more hydroxyl groups, and contain at least one unsaturation, preferably from one to six unsaturations. , conjugated or not, and are in acid or salified form, Preferably, the unsaturated fatty acid or acids are chosen from oleic acid, linoleic acid, linolenic acid, di-homo-y- linolenic, arachidonic acid, erucic acid, sorbic acid, docosahexaenoic acid, eicosapentaenoic acid, palmitoleic acid, nervonic acid, alone or in mixtures, in acidic or salified form. Even more preferentially, the unsaturated acid is oleic acid, in acid or salified form. According to a preferred embodiment of the invention, the content of unsaturated fatty acid (s), in acid or salified form, represents from 0.1 to 50% by weight, preferably from 0.5 to 10% by weight. by weight, even more particularly from 1 to 5% by weight relative to the weight of the mixture. The unsaturated acid (s) may be in the dye composition, in the oxidizing composition, or in both compositions simultaneously.

Liquid fatty alcohols The mixture used in the context of the invention also comprises at least one C 8 -C 30 fatty alcohol which is liquid at ambient temperature and at atmospheric pressure.

In particular, the C 8 -C 30 fatty alcohol (s) which are liquid at room temperature and at atmospheric pressure are linear or branched monoalcohols, saturated or comprising at least one unsaturation, and preferably from one to three unsaturations, conjugated or otherwise. Suitable alcohols include isostearyl alcohol, octyldodecanol, 2-butyloctanol, 2-hexyldecanol, 2-undecylpentadecanol, oleic alcohol, linoleic alcohol, linolenic alcohol, alcohol and the like. undecylenic, palmitoleic alcohol, arachidonic alcohol, erucic alcohol, alone or in mixtures. Preferably, the mixture according to the invention comprises at least one C 8 -C 30 fatty alcohol which is liquid at ambient temperature and at atmospheric pressure, comprising at least one unsaturation and preferably from one to three unsaturations, conjugated or otherwise. Even more preferentially, the liquid fatty alcohol is oleic alcohol.

According to one particular embodiment of the invention, the content of C 8 -C 30 fatty alcohol (s) at ambient temperature and at atmospheric pressure represents from 0.1 to 30% by weight, preferably from 1 to 30% by weight. 20% by weight, better still 2 to 10% by weight relative to the weight of the mixture.

The liquid alcohol (s) may be in the dye composition, in the oxidizing composition, or in both compositions simultaneously. Coloring composition Dyes The dye composition used in the process according to the invention comprises at least one oxidation dye precursor. As oxidation dye precursors, oxidation bases and couplers may be used. By way of example, the oxidation bases are chosen from para-phenylenediamines, bis-phenylalkylenediamines, para-aminophenols, ortho-aminophenols, heterocyclic bases and their addition salts. Among the paraphenylenediamines, there may be mentioned, for example, para-phenylenediamine, paratoluylenediamine, 2-chloro-para-phenylenediamine, 2,3-dimethyl-para-phenylenediamine, 2,6-dimethyl-para-phenylenediamine, 2,6-diethyl-para-phenylenediamine, 2,5-dimethyl paraphenylenediamine, N, N-dimethyl paraphenylenediamine, N, N-diethyl paraphenylenediamine, N, Ndipropyl paraphenylenediamine, 4-amino N, N-diethyl-3-methylaniline, N, N-bis- ( 3-hydroxyethyl) paraphenylenediamine, 4-N, N-bis - ((3-hydroxyethyl) amino 2-methyl aniline, 4-N, N-bis - ((3-hydroxyethyl) amino 2-chloroaniline, 2 (3-hydroxyethyl-para-phenylenediamine, 2-fluoro-para-phenylenediamine, 2-isopropyl-para-phenylenediamine, N - ((3-hydroxypropyl) para-phenylenediamine, 2-hydroxymethyl-para-phenylenediamine, N, N-dimethyl-3-methyl-para-phenylenediamine, N, N - (ethyl, 3-hydroxyethyl) paraphenylenediamine, N- (13, γ-dihydroxypropyl) p aphenylenediamine, N- (4'-aminophenyl) paraphenylenediamine, N-phenyl paraphenylenediamine, 2 (3-hydroxyethyloxy) paraphenylenediamine, 2 (3-acetylaminoethyloxy) paraphenylenediamine, N - ((3-methoxyethyl) paraphenylenediamine, 4-aminophenylpyrrolidine, 2-thienyl paraphenylenediamine, hydroxyethylamino 5-amino toluene, 3-hydroxy-1- (4'-aminophenyl) pyrrolidine and their addition salts with an acid. Among the paraphenylenediamines mentioned above, paraphenylenediamine, paratoluylenediamine, 2-isopropyl paraphenylenediamine, 2 (3-hydroxyethyl paraphenylenediamine, 2 (3-hydroxyethyloxy) paraphenylenediamine, 2,6-dimethyl paraphenylenediamine, 2,6 ethyl paraphenylenediamine, 2,3-dimethyl paraphenylenediamine, N, N-bis - ((3-hydroxyethyl) paraphenylenediamine, 2-chloro-para-phenylenediamine, 2 (3-acetylaminoethyloxy) para-phenylenediamine, and their acid addition salts Particularly preferred bis-phenylalkylenediamines include, for example, N, N'-bis- ((3-hydroxyethyl) N, N'-bis (4'-aminophenyl) -1,3- diamino propanol, N, N'-bis - ((3hydroxyethyl) N, N'-bis (4'-aminophenyl) ethylenediamine, N, N'-bis (4-aminophenyl) tetramethylenediamine, N, N ' bis ((3-hydroxyethyl) N, N'-bis- (4-aminophenyl) tetramethylenediamine, N, N'-bis- (4-methylaminophenyl) tetramethyl ènediamine, N, N'-bis (ethyl) N, N'-bis (4'-amino, 3'-methylphenyl) ethylenediamine, 1,8-bis (2,5-diamino phenoxy) -3 , 6-dioxaoctane, and their addition salts. Among para-aminophenols, para-aminophenol, 4-amino-3-methylphenol, 4-amino-3-fluoro phenol, 4-amino-3-chlorophenol, 4-amino-3 are exemplified. -hydroxymethyl phenol, 4-amino-2-methylphenol, 4-amino-2-hydroxymethylphenol, 4-amino-2-methoxymethylphenol, 4-amino-2-aminomethylphenol, 4-amino-2 - ((3- hydroxyethyl aminomethyl) phenol, 4-amino-2-fluoro phenol, and their addition salts with an acid Among the ortho-aminophenols, there may be mentioned by way of example, 2-amino phenol, 2-amino 3-methylphenol, 2-amino-6-methylphenol, 5-acetamido-2-amino phenol, and their addition salts Amongst the heterocyclic bases, mention may be made, by way of example, of pyridine derivatives and pyrimidine derivatives and the pyrazole derivatives Among the pyridine derivatives, mention may be made of the compounds described for example in patents GB 1,026,978 and GB 1,153,196, such as 2,5-diamino pyridine, 2 - (4-methoxyphenyl) amino-3-amino pyridine, 3,4-diamino pyridine, and their addition salts. Other pyridinic oxidation bases useful in the present invention are the 3-amino pyrazolo [1,5-a] pyridines oxidation bases or their addition salts described for example in the patent application FR 2801308. By way of example, mention may be made of pyrazolo [1,5-a] pyridin-3-ylamine; 2-acetylamino pyrazolo [1,5-a] pyridin-3-ylamine; 2-morpholin-4-yl-pyrazolo [1,5-a] pyridin-3-ylamine; 3-amino-pyrazolo [1,5-a] pyridin-2-carboxylic acid; 2-methoxy-pyrazolo [1,5-a] pyridin-3-ylamino; (3-amino-pyrazolo [1,5-a] pyridin-7-yl) -methanol; 2- (3-Amino-pyrazolo [1,5-a] pyridin-5-yl) -ethanol; 2- (3-Amino-pyrazolo [1,5-a] pyridin-7-yl) -ethanol; (3-Amino-pyrazolo [1,5-a] pyridin-2-yl) -methanol; 3,6-diaminopyrazolo [1,5-a] pyridine; 3,4-diamino-pyrazolo [1,5-a] pyridine; pyrazolo [1,5-a] pyridine-3,7-diamine; 7-morpholin-4-yl-pyrazolo [1,5-a] pyridin-3-ylamine; pyrazolo [1,5-a] pyridine-3,5-diamine; 5-morpholin-4-yl-pyrazolo [1,5-a] pyridin-3-ylamine; 2 - [(3-amino-pyrazolo [1,5-a] pyridin-5-yl) - (2-hydroxyethyl) amino] ethanol; 2 - [(3-amino-pyrazolo [1,5-a] pyridin-7-yl) - (2-hydroxyethyl) amino] ethanol; 3-amino-pyrazolo [1,5-a] pyridin-5-ol; 3-amino-pyrazolo [1,5-a] pyridin-4-ol; 3-amino-pyrazolo [1,5-a] pyridin-6-ol; 3-amino-pyrazolo [1,5-a] pyridin-7-ol; as well as their addition salts. Among the pyrimidine derivatives, mention may be made of the compounds described, for example, in DE 2359399; JP 88-169571; JP 05-63124; EP 0770375 or patent application WO 96/15765 such as 2,4,5,6-tetraaminopyrimidine, 4-hydroxy 2,5,6-triaminopyrimidine, 2-hydroxy 4,5,6-triaminopyrimidine, , 4-dihydroxy-5,6-diaminopyrimidine, 2,5,6-triaminopyrimidine and their addition salts and tautomeric forms, when tautomeric equilibrium exists. Among the pyrazole derivatives, mention may be made of the compounds described in DE 3843892, DE 4133957 and patent applications WO 94/08969, WO 94/08970, FR-A-2 733 749 and DE 195 43 988 as the 4.5 1-methyl pyrazole, 4,5-diamino-1 - ((3-hydroxyethyl) pyrazole, 3,4-diamino pyrazole, 4,5-diamino-1- (4'-chlorobenzyl) pyrazole, diamino 1,3-dimethyl pyrazole, 4,5-diamino-3-methyl-1-phenyl pyrazole, 4,5-diamino-1-methyl-3-phenylpyrazole, 4-amino-1,3-dimethyl-5-hydrazino pyrazole, 1-Benzyl-4,5-diamino-3-methyl-pyrazole, 4,5-diamino-3-tert-butyl-1-methyl-pyrazole, 4,5-diamino-1-tert-butyl-3-methyl-pyrazole, 4,5 -diamino 1 - ((3-hydroxyethyl) 3-methyl pyrazole, 4,5-diamino-1-ethyl-3-methyl-pyrazole, 4,5-diamino-1-ethyl-3- (4'-methoxyphenyl) pyrazole, 5-diamino-1-ethyl-3-hydroxymethyl pyrazole, 4,5-diamino-3-hydroxymethyl-1-methyl-pyrazole, 4,5-diamino-3-hydroxymethyl-1-isopropyl pyrazole, 4,5-diamino-3-meth 1-isopropyl pyrazole, 4-amino 5- (2'-aminoethyl) amino 1,3-dimethyl pyrazole, 3,4,5-triamino pyrazole, 1-methyl 3,4,5-triamino pyrazole, 3,5-diamino-1-methyl-4-methylamino pyrazole, 3,5-diamino 4 - ((3-hydroxyethyl) amino-1-methyl pyrazole, and their addition salts. It is also possible to use 4-5-diamino-1 - ((3-methoxyethyl) pyrazole.

Preferably, a 4,5-diaminopyrazole and even more preferably 4,5-diamino-1 - ((3-hydroxyethyl) pyrazole and / or one of its salts will be used as pyrazole derivatives. also mentioned diamino N, Ndihydropyrazolopyrazolones and in particular those described in application FR-A2 886 136 such as the following compounds and their addition salts: 2,3-diamino-6,735 dihydro-1H, 5H-pyrazolo [1,2- a] pyrazol-1-one, 2-amino-3-ethylamino-6,7-dihydro-1H, 5H-pyrazolo [1,2-a] pyrazol-1-one, 2-amino-3-isopropylamino-6 7-Dihydro-1H, 5H-pyrazolo [1,2-a] pyrazol-1-one, 2-amino-3- (pyrrolidin-1-yl) -6,7-dihydro-1H, 5H-pyrazolo [1] 2-a] pyrazol-1-one, 4,5-diamino-1,2-dimethyl-1,2-dihydro-pyrazol-3-one, 4,5-diamino-1,2-1,2-diethyl -dihydro-pyrazol-3-one, 4,5-diamino-1,2-di- (2-hydroxyethyl) -1,2-dihydro-pyrazol-3-one, 2-amino-3- (2-hydroxyethyl) amino-6,7-dihydro-1H, 5H-pyrazolo [1,2-a] pyrazol-1-one, 2-amino-3-di-methylamino-6,7-dihydro-1H, 5H-pyrazolo [1,2] -a] pyrazol-1-one, 2,3 5,6,7,8-tetrahydro-1H, 6H-pyridazino [1,2-a] pyrazol-1-one, 4-aminodo-1,2-diethyl-5- (pyrrolidin-1-yl) -1,2-dihydro-pyrazol-3-one, 4-amino-5- (3-dimethylamino-pyrrolidin-1-yl) -1,2-diethyl-1,2-dihydro-pyrazol-3-one, 2,3-diamino-6-hydroxy-6,7-dihydro-1H, 5H-pyrazolo [1,2-a] pyrazol-1-one. It is preferred to use 2,3-diamino-6,7-dihydro-1H, 5H-pyrazolo [1,2-a] pyrazol-1-one and / or a salt thereof.

As heterocyclic bases, 4,5-diamino-1 - ((3-hydroxyethyl) pyrazole and / or 2,3-diamino-6,7-dihydro-1H, 5H-pyrazolo [1,2a] are preferably used. ] pyrazol-1-one and / or a salt thereof Among the couplers that can be used in the composition used in the process according to the invention, mention may especially be made of meta-phenylenediamines, meta-aminophenols and meta-amines. -diphenols, naphthalenic couplers, heterocyclic couplers such as, for example, indole derivatives, indoline derivatives, sesamol and its derivatives, pyridine derivatives, pyrazolotriazole derivatives, pyrazolones, indazoles, benzimidazoles, benzothiazoles, benzoxazoles, 1,3-benzodioxoles, quinolines, and the addition salts of these compounds with an acid These couplers are more particularly chosen from 2,4-diamino-1 - ((3hydroxyethyloxy) -benzene, 2 -methyl-5-amino-phenol, 5-N - ((3-hydroxyethyl) amino-2-methyl-phenol, 3-amino-phenol, 1,3-dihydroxybenzene, 1,3-dihydroxy-2-methyl-benzene, 4-chloro-1,3-dihydroxybenzene, 2-amino-4 - ([3-hydroxyethylamino) -1-methoxy-benzene, 1,3-diamino-benzene, 1,3-bis (2,4-diaminophenoxy) -propane, sesamol, amino-2-methoxy-4,5-methylenedioxybenzene, α-naphthol, 6-hydroxyindole, 4-hydroxyindole, 4-hydroxy-N-methylindole, 6-hydroxyindoline 2,6-dihydroxy-4-methyl-pyridine, 1-H-3-methylpyrazol-5-one, 1-phenyl-3-methyl-pyrazol-5-one, 2-amino-3-hydroxypyridine , 3,6-dimethyl-pyrazolo [3,2-c] -1,2,4-triazole, 2,6-dimethyl-pyrazolo [1,5-13] -1,2,4-triazole , their addition salts with an acid, and mixtures thereof. The addition salts of the oxidation bases and the couplers are in particular chosen from acid addition salts such as hydrochlorides, hydrobromides, sulphates, citrates, succinates, tartrates, lactates and tosylates. , benzenesulfonates, phosphates and acetates. The oxidation base (s) are generally present each in an amount of between 0.0001% and 10% by weight relative to the total weight of the composition, and preferably from 0.005% to 5% by weight relative to the total weight of the composition. coloring composition. The coupler (s) are each in general from 0.0001 to 10% by weight relative to the total weight of the composition, and preferably from 0.005 to 5% by weight relative to the total weight of the dye composition. The dye composition used in the process according to the invention may contain synthetic or natural direct dyes, cationic or nonionic. By way of example of particularly suitable direct dyes, mention may be made of the nitro dyes of the benzene series; azo direct dyes; azomethines; methinic; azacarbocyanines such as tetraazacarbocyanines (tetraazapentamethines); quinone direct dyes and in particular anthraquinone, naphthoquinone or benzoquinone dyes; direct azine dyes; xanthenics; triarylmethanics; indoamines; indigoids; phthalocyanines, porphyrins and natural direct dyes, alone or in mixtures. In particular, mention may be made of azo direct dyes; methinic; carbonyls; azinic; nitro (hetero) aryl; tri- (hetero) aryl methanes; porphyrins; phthalocyanines and natural direct dyes, alone or in mixtures. When present, the direct dye (s) more particularly represent from 0.0001 to 10% by weight of the total weight of the dyeing composition, and preferably from 0.005 to 5% by weight. Alkaline agent According to a preferred variant of the invention, the dye composition comprises at least one alkaline agent. This agent may be chosen from inorganic or organic or hybrid alkaline agents or mixtures thereof. The inorganic alkaline agent (s) is (are) preferably chosen from ammonia, alkali carbonates or bicarbonates, such as sodium or potassium carbonates and sodium or potassium bicarbonates, sodium or potassium hydroxides, or mixtures thereof. The organic alkaline agent (s) is (are) preferably chosen from organic amines whose pKb at 25 ° C. is less than 12, and preferably less than 10, and even more advantageously less than 6. It should be noted that this is pKb corresponding to the highest basicity function. As hybrid compounds, mention may be made of the salts of the amines mentioned above with acids such as carbonic acid and hydrochloric acid.

The organic alkaline agent (s) are, for example, chosen from alkanolamines, ethoxylated and / or oxypropylenated ethylenediamines, amino acids and compounds of the following formula: ## STR2 ## in which W is a C 1 -C 4 alkylene radical; C6 optionally substituted by a hydroxyl group or a C1-C6 alkyl radical; Rx, Ry, Rz and Rt, identical or different, represent a hydrogen atom, a C1-C6 alkyl or C1-C6 hydroxyalkyl, C1-C6 aminoalkyl radical. Examples of such amines include 1,3-diaminopropane, 1,3-diaminopropanol, spermine and spermidine. By alkanolamine is meant an organic amine comprising a primary, secondary or tertiary amine function, and one or more linear or branched C 1 -C 8 alkyl groups carrying one or more hydroxyl radicals. Alkanolamines, such as mono-, di- or trialkanolamines comprising one to three identical or different C 1 -C 4 hydroxyalkyl radicals, are particularly suitable for carrying out the invention. Among compounds of this type, mention may be made of monoethanolamine, diethanolamine, triethanolamine, monoisopropanolamine, diisopropanolamine, N-dimethylaminoethanolamine, 2-amino-2-methyl-1-propanol, triisopropanolamine and the like. 2-amino-2-methyl-1,3-propanediol, 3-amino-1,2-propanediol, 3-dimethylamino-1,2-propanediol, tris-hydroxymethylamino-methane. More particularly, the amino acids that can be used are of natural or synthetic origin, in their L, D, or racemic form, and comprise at least one acid function chosen more particularly from carboxylic, sulfonic, phosphonic or phosphoric acid functions. Amino acids can be in neutral or ionic form. As amino acids that may be used in the present invention, mention may in particular be made of aspartic acid, glutamic acid, alanine, arginine, ornithine, citrulline, asparagine, carnitine and cysteine. glutamine, glycine, histidine, lysine, isoleucine, leucine, methionine, N-phenylalanine, proline, serine, taurine, threonine, tryptophan, tyrosine and valine. Advantageously, the amino acids are basic amino acids comprising an additional amine function optionally included in a ring or in a ureido function. Such basic amino acids are preferably chosen from those corresponding to the following formula: ## STR2 ## where R denotes a group chosen from: - (C1-12) 3N1-12 - (CH2) 2NHCONH2 - The compounds corresponding to the above formula are histidine, lysine, arginine, ornithine, citrulline. The organic amine may also be chosen from heterocyclic organic amines. In addition to the histidine already mentioned in the amino acids, mention may in particular be made of pyridine, piperidine, imidazole, triazole, tetrazole and benzimidazole. . The organic amine may also be selected from amino acid dipeptides. As amino acid dipeptides that can be used in the present invention, mention may be made in particular of carnosine, anserin and balenine.

The organic amine is selected from compounds having a guanidine function. As amino amines of this type which can be used in the present invention, mention may in addition be made of arginine already mentioned as amino acid, creatine, creatinine, 1,1-dimethylguanidine, 1,1 diethylguanidine, glycocyamine, metformin, agmatine, n-amidinoalanine, 3-guanidinopropionic acid, 4-guanidinobutyric acid and 2- gamino (imino) methyl] amino) ethane-1-sulfonic acid . As hybrid compounds, mention may in particular be made of guanidine carbonate or monoethanolamine hydrochloride. More particularly, the coloring composition used in the process of the invention contains, as alkaline agent, ammonia and / or at least one alkanolamine and / or at least one basic amino acid, more preferably ammonia and / or at least one alkanolamine. Preferably, the alkaline agent is chosen from ammonia, monoethanolamine, or their mixture. Advantageously, the dyeing composition has an alkaline agent (s) content ranging from 0.01% to 30% by weight, preferably from 0.1% to 20% by weight and better still from 1% to 10% by weight. weight relative to the weight of said coloring composition. Note that this content is expressed in NH3 in the case where the alkaline agent is ammonia.

Additional Surfactants The coloring composition may further comprise one or more additional surfactants different from the above-mentioned fatty acid (s).

In particular, the additional surfactant or surfactants are chosen from anionic surfactants different from the above-mentioned fatty acid (s), amphoteric, zwitterionic, cationic or nonionic, and preferentially nonionic. The term "anionic surfactant" is understood to mean a surfactant comprising as ionic or ionizable groups only anionic groups. These anionic groups are preferably chosen from -C (O) OH, -C (O) O-, -SO3H, -S (O) 20-, -OS (O) 20H, -OS (O) groups. -, -P (O) OH2, -P (O) 20-, -P (O) O2, -P (OH) 2, = P (O) OH, -P (OH) O-, = P (0) 0-, = POH, = PO-, the anionic moieties comprising a cationic counter ion such as an alkali metal, alkaline earth metal, or ammonium. By way of examples of anionic surfactants which can be used in the dyeing composition according to the invention, mention may be made of alkyl sulphates, alkyl ether sulphates, alkylamido ether sulphates, alkylaryl polyether sulphates, monoglyceride sulphates, alkyl sulphonates and alkyl amide sulphonates. alkylarylsulfonates, alpha-olefin-sulfonates, paraffin-sulfonates, alkylsulfosuccinates, alkylethersulfosuccinates, alkylamide-sulfosuccinates, alkylsulfoacetates, acylsarcosinates, acylglutamates, alkylsulfosuccinamates, acylisethionates and N-acyltaurates salts of alkyl monoesters and polyglycoside-polycarboxylic acids, acyllactylates, D-galactoside-uronic acid salts, alkyl ether-carboxylic acid salts, alkyl aryl ether-acid salts, carboxylic acids, the alkyl amidoether carboxylic acid salts, and the corresponding non-salified forms of all these compounds, the alkyl and acyl radicals of all these compounds having from 6 to 40 carbon atoms and the aryl group denoting a phenyl group. These compounds can be oxyethylenated and then preferably comprise from 1 to 50 ethylene oxide units. The salts of C 6 -C 24 alkyl monoesters and polyglycoside polycarboxylic acids may be selected from C 60 -C 24 alkyl polyglycoside citrates, C 6 -C 24 alkyl polyglycoside tartrates and C 6 -C 24 alkyl polyglycoside sulfosuccinates. 024. When the anionic surfactant (s) is in the salt form, it (s) can be selected from alkali metal salts such as sodium or potassium salt and preferably sodium salt. , ammonium salts, amine salts and in particular aminoalcohols or alkaline earth metal salts such as magnesium salts. By way of example of aminoalcohol salts, mention may be made in particular of the salts of mono-, di- and triethanolamine, the salts of mono-, di- or triisopropanolamine and the salts of 2-amino-2-methyl-1-one. propanol, 2-amino-2-methyl-1,3-propanediol and tris (hydroxymethyl) amino methane. The alkali metal or alkaline earth metal salts and in particular the sodium or magnesium salts are preferably used. Among the anionic surfactants mentioned, it is preferred to use (C 6 -C 24) alkyl sulphates, alkyl (C 6 -C 24) ether sulphates comprising from 2 to 50 ethylene oxide units, in particular in the form of alkali metal or ammonium salts. , aminoalcohols, and alkaline earth metals, or a mixture of these compounds. In particular, it is preferred to use (C 12 -C 20) alkyl sulphates, C 12 -C 20 alkyl ether sulphates comprising from 2 to 20 ethylene oxide units, in particular in the form of alkali metal salts, ammonium salts, aminoalcohol , and alkaline earth metals, or a mixture of these compounds. More preferably, it is preferred to use sodium lauryl ether sulfate with 2.2 moles of ethylene oxide. The amphoteric or zwitterionic surfactant (s), preferably non-silicone surfactants, which may be used in the present invention may be in particular derivatives of secondary or tertiary aliphatic amines, optionally quaternized, in which the aliphatic group is a linear or branched chain containing from 8 to 8 carbon atoms. at 22 carbon atoms, said amine derivatives containing at least one anionic group such as, for example, a carboxylate group, sulfonate, sulfate, phosphate or phosphonate. Mention may in particular be made of (C 8 -C 20) alkyl betaines, sulphobetaines, (C 8 -C 20) alkylamido (C 3 -C 8) alkyl betaines and (C 8 -C 8) alkyl (C 8 -C 8) alkylsulfobetaines. Among the derivatives of secondary or tertiary aliphatic amines, optionally quaternized, which may be used, as defined above, there may also be mentioned the compounds of the following respective structures (B1) and (B2): Ra-C (O) -NH-CH2 -CH2-N + (Rb) (R1) -CH2C (O) O-, M +, X- (B1) Formula wherein: Ra represents a C10-C30 alkyl or alkenyl group derived from an acid RaCOOH, preferably present in hydrolyzed coconut oil, heptyl, nonyl or undecyl; Rb represents a beta-hydroxyethyl group; and R is a carboxymethyl group; M + represents a cationic counterion derived from an alkali metal, alkaline earth metal, such as sodium, an ammonium ion or an ion derived from an organic amine, and X - represents an organic or inorganic anionic counterion, such as that chosen from halides, acetates, phosphates, nitrates, (C 1 -C 4) alkyl sulphates, (C 1 -C 4) alkyl or (C 1 -C 4) alkylarylsulfonates, in particular methylsulphate and ethylsulphate; or else W and X- are absent; Ra-C (O) -NH-CH 2 -CH 2 -N (B) (131) (B2) Formula wherein: B is -CH 2 -CH 2 -O-X '; B 'represents the group - (CH2), Y', with z = 1 or 2; X 'represents the group -CH2-C (O) OH, -CH2-C (O) OZ', -CH2-CH2-C (O) OH, -CH2-CH2-C (O) OZ ', or hydrogen atom; Y 'represents the group -C (O) OH, -C (O) OZ', -CH2-CH (OH) -SO3H or the group -CH2-CH (OH) -SO3-Z '; Z 'represents a cationic counterion derived from an alkaline or alkaline earth metal, such as sodium, an ammonium ion or an ion derived from an organic amine; Ra, represents a C10-C30 alkyl or alkenyl group of an acid Ra-C (O) OH, preferably present in coconut oil or in hydrolysed linseed oil, an alkyl group, especially in 017 and its iso form, an unsaturated C17 group. These compounds are classified in the CTFA dictionary, 5th edition, 1993, under the names cocoamphodiacétate disodium, lauroamphodiacétate disodium, caprylamphodiacétate disodium, capryloamphodiacétate disodium, cocoamphodipropionate disodium, lauroamphodipropionate disodium, caprylamphodipropionate disodium, capryloamphodipropionate disodium, acid lauroamphodipropionic, cocoamphodipropionic acid. By way of example, mention may be made of cocoamphodiacetate marketed by Rhodia under the trade name MIRANOL® C2M concentrate. It is also possible to use compounds of formula (B'2); Ra-NH-CH (Y ") - (CH2) nC (O) -NH- (CH2) n -N (Rd) (Re) (B'2) Formula wherein: ^ Y" represents the group -C (O) OH, -C (O) OZ-, -CH2-CH (OH) -SO3H or -CH2-CH (OH) -SO3-Z-; Rd and Re, independently of one another, represent a C 1 -C 6 alkyl or hydroxyalkyl radical; represents a cationic counterion derived from an alkaline or alkaline earth metal, such as sodium, an ammonium ion or an ion; derived from an organic amine; - Re represents a C10-C30 alkyl or alkenyl group of an acid Ra-C (O) OH, preferably present in coconut oil or in hydrolysed linseed oil. and n ', independently of one another, denotes an integer ranging from 1 to 3. Among the compounds of formula (B'2), there may be mentioned the compound classified in the CTFA dictionary under the name sodium diethylaminopropyl cocoaspartamide and marketed by CHIMEX under the name CHIMEXANE HB. Among the amphoteric or zwitterionic surfactants mentioned above, alkyl (C 8 -C 20) betaines such as cocobetaine, (C 8 -C 20) alkylamidoalkyl are preferably used. (C3-C8) betaines such as cocamidopropylbetain e, and mixtures thereof, compounds of formula (B'2) such as the sodium salt of diethylaminopropyl lauryl amino succinamate (INCI name: sodium diethylaminopropyl cocoaspartamide). More preferably, the amphoteric or zwitterionic surfactant (s) is (are) chosen from cocamidopropylbetaine and cocobetaine, the sodium salt of diethylaminopropyl laurylamino succinamate, or mixtures thereof. The cationic surfactant or agents which may be used in the dyeing composition according to the invention comprise, for example, the optionally polyoxyalkylenated primary, secondary or tertiary fatty amine salts, the quaternary ammonium salts, and mixtures thereof. As quaternary ammonium salts, mention may be made, for example: - those corresponding to the following general formula (B3): - + R8 \ Rio XR / R1, '11 (B3) Formula in which: - R8 at R11, which may be identical or different, represent a linear or branched aliphatic group containing from 1 to 30 carbon atoms, or an aromatic group such as aryl or alkylaryl, it being understood that at least one of the groups R8 to R11 comprise from 8 to at 30 carbon atoms, and preferably from 12 to 24 carbon atoms; and 35 - X-, represents an organic or inorganic anionic counterion, such as that selected from halides, acetates, phosphates, nitrates, (C1-C4) alkyl sulfates, (C1-C4) alkyl or (C1-C4) alkyl aryl sulfonates, in particular methylsulfate and ethylsulfate. The aliphatic groups of R8 to R11 may further comprise heteroatoms such as in particular oxygen, nitrogen, sulfur and halogens.

The aliphatic groups of R8 to R11 are, for example, chosen from C1-C30alkyl, C1-C30alkoxy, polyoxyalkylene (C2-06), alkyl (C1-C22) alkylamido (C2-C6) alkyl, ( C12-C22) acetate, and C1-C30 hydroxyalkyl, X- is an anionic counterion selected from halides, phosphates, acetates, lactates, alkyl (C1-C4) sulfates, alkyl (C1-C4) - or alkyl (Cl C4) arylsulphonates.

Of the quaternary ammonium salts of formula (B3), tetraalkylammonium chlorides, for example dialkyldimethylammonium or alkyltrimethylammonium chlorides in which the alkyl group comprises from about 12 to 22 carbon atoms, are preferred. carbon, in particular behenyltrimethylammonium, distearyl dimethylammonium, cetyltrimethylammonium, benzyldimethylstearylammonium chlorides, or distearoylethylhydroxyethylmethylammonium methosulphate, dipalmitoylethylhydroxyethylammonium methosulphate or distearoylethylhydroxyethylammonium methosulphate, or, finally, palmitylamidopropyltrimethylammonium chloride or stearamidopropyldimethyl (myristyl acetate) ammonium chloride sold under the name CERAPHYL® 70 by VAN DYK; the quaternary ammonium salts of imidazoline, such as, for example, those of formula (B4) below: ## STR3 ## in which R 12 represents a alkenyl or alkyl group having from 8 to 30 carbon atoms, for example fatty acid derivatives of tallow; R13 represents a hydrogen atom, a C1-C4 alkyl group or an alkenyl or alkyl group having from 8 to 30 carbon atoms; R14 represents a C1-C4 alkyl group; R15 represents a hydrogen atom, a C1-C4 alkyl group; X represents an organic or inorganic anionic counterion, such as that chosen from halides, phosphates, acetates, lactates, (C 1 -C 4) alkyl sulphates, (C 1 -C 4) alkyl or (C 1 -C 4) alkylaryl- sulfonates.

Preferably, R12 and R13 denote a mixture of alkenyl or alkyl groups containing from 12 to 21 carbon atoms, for example fatty acid derivatives of tallow, R14 denotes a methyl group, R15 denotes a hydrogen atom. Such a product is for example marketed under the name REWOQUAT® W 75 by the company REVVO; the quaternary di- or triammonium salts, in particular of formula (B5) below: R 17 R 16 N (CH 2) 3 N R 21 R 18 R 20 (B 5) Formula in which: R 16 denotes an alkyl group comprising from about 16 to 30 atoms of carbon, optionally hydroxylated and / or interrupted by one or more oxygen atoms; R 17 is chosen from hydrogen, an alkyl group comprising from 1 to 4 carbon atoms or a group - (CH 2) 3 -N + (R 16a) (R 17a) (R 1sa), X; R16a, R17a, R18a, R18, R19, R20 and R21, which are identical or different, are chosen from hydrogen and an alkyl group comprising from 1 to 4 carbon atoms; and - X-, which may be identical or different, represent an organic or inorganic anionic counterion, such as that chosen from halides, acetates, phosphates, nitrates, (C 1 -C 4) alkyl sulphates, (C 1 -C 4) alkyl or alkyl ( C1-C4) aryl sulfonates, in particular methylsulfate and ethylsulfate. Such compounds are, for example, the Finquat CT-P proposed by Finetex (Quaternium 89), the Finquat CT proposed by Finetex (Quaternium 75); quaternary ammonium salts containing one or more ester functions, such as those of formula (B6) below: embedded image Wherein R22 is selected from C1-C6alkyl and hydroxyalkyl or C1-C6dihydroxyalkyl; R23 is selected from: R26C2 + 2X - linear or branched, saturated - hydrocarbon groups R-C-C22, or unsaturated, - hydrogen, R25 is selected from: O - the group R2-8C - - R29 hydrocarbon groups C1-C6 saturated or unsaturated, linear or branched, hydrogen, R 24, R 26 and R 28, which are identical or different, are chosen from linear or branched, saturated or unsaturated C 7 -C 21 hydrocarbon-based groups; r, s and t, which may be identical or different, are integers of from 2 to 6, r1 and t1 which are identical or different, equal to 0 or 1 with r2 + r1 = 2r and t1 + t2 = 2t - y is an integer from 1 to 10, - x and z, which may be identical or different, are integers ranging from 0 to 10, - X- represents an anionic counterion, organic or inorganic, provided that the sum x + y + z is from 1 to 15, that when x is 0 then R23 is R27 and when z is 0 then R25 is R29. The alkyl groups R22 may be linear or branched, and more particularly linear.

Preferably, R 22 denotes a methyl, ethyl, hydroxyethyl or dihydroxypropyl group, and more particularly a methyl or ethyl group. Advantageously, the sum x + y + z is from 1 to 10. When R 23 is a hydrocarbon R 27 group, it may be long and have 12 to 22 carbon atoms, or short and have from 1 to 3 carbon atoms.

When R 25 is a hydrocarbon R 29 group, it preferably has 1 to 3 carbon atoms. Advantageously, R24, R26 and R28, which are identical or different, are chosen from linear or branched, saturated or unsaturated C11-C21 hydrocarbon-based groups, and more particularly from saturated linear or branched C11-C21 alkyl and alkenyl groups. or unsaturated. Preferably, x and z, which are identical or different, are equal to 0 or 1. Advantageously, y is equal to 1. Preferably, r, s and t, identical or different, are equal to 2 or 3, and even more particularly are equal to 2 .

The anionic counterion X- is preferably a halide, such as chloride, bromide or iodide; a (C1-C4) alkyl sulphate; (C1-C4) alkyl or (C1-C4) alkyl aryl sulfonate. However, it is possible to use methanesulphonate, phosphate, nitrate, tosylate, an anion derived from an organic acid such as acetate or lactate or any other anion compatible with ammonium with an ester function. The anionic counterion X- is even more particularly chloride, methylsulfate or ethylsulfate.

In the dye composition according to the invention, the ammonium salts of formula (B6) are used more particularly in which: R22 denotes a methyl or ethyl group, x and y are equal to 1, -z is equal to 0 or 1, - r, s and t are equal to 2, - R23 is chosen from: o - the group R26 C - - the methyl, ethyl or hydrocarbon groups at 014-022, - the hydrogen atom, - R25 is chosen from: 0 - the group R 28 C - - the hydrogen atom, - R 24, R 26 and R 28, which are identical or different, are chosen from linear or branched, saturated or unsaturated C 13 -C 17 hydrocarbon-based groups, and preferably from linear or branched, saturated or unsaturated C13-C17 alkyl and alkenyl groups. Advantageously, the hydrocarbon radicals are linear. Examples of compounds of formula (B6) include salts, especially diacyloxyethyldimethylammonium, diacyloxyethylhydroxyethylmethylammonium, monoacyloxyethyldihydroxyethylmethylammonium, triacyloxyethylmethylammonium, monoacyloxyethylhydroxyethyldimethylammonium, and mixtures thereof, especially diacyloxyethyldimethylammonium chloride or methylsulfate. The acyl groups preferably have from 14 to 18 carbon atoms and come more particularly from a vegetable oil such as palm oil or sunflower oil. When the compound contains more than one acyl group, the latter groups may be identical or different. These products are obtained, for example, by direct esterification of triethanolamine, triisopropanolamine, alkyldiethanolamine or alkyldisopropanolamine, optionally oxyalkylenated, with fatty acids or with mixtures of fatty acids of plant or animal origin, or with transesterification of their methyl esters. This esterification is followed by quaternization using an alkylating agent such as an alkyl halide, preferably methyl or ethyl, a dialkyl sulphate, preferably methyl or ethyl sulphate. methyl methanesulfonate, methyl para-toluenesulfonate, glycol or glycerol chlorohydrin. Such compounds are, for example, sold under the names DEHYQUART® by the company HENKEL, STEPANQUAT® by the company STEPAN, NOXAMIUM® by the company CECA, REWOQUAT® VVE 18 by the company REWOWITCO. The coloring composition according to the invention may contain, for example, a mixture of quaternary ammonium mono-, di- and triester salts with a majority of diester salts by weight. It is also possible to use the ammonium salts containing at least one ester function described in US-A-4874554 and US-A-4137180. The KAO-proposed behenoylhydroxypropyltrimethylammonium chloride may be used under the name Quatarmin BTC 131. Preferably, the ammonium salts containing at least one ester function contain two ester functions. Among the cationic surfactants that may be present in the dye composition according to the invention, it is more particularly preferred to choose the cetyltrimethylammonium, behenyltrimethylammonium, dipalmitoylethyl-hydroxyethylmethylammonium salts, and mixtures thereof, and more particularly behenyltrimethylammonium chloride, chloride cetyltrimethylammonium, dipalmitoylethylhydroxyethylammonium methosulfate, and mixtures thereof. Examples of nonionic surfactants useful in the dye composition used according to the invention are described for example in "Handbook of Surfactants" by M. R. PORTER, Blackie & Son editions (Glasgow and London), 1991, pp. 116-178. They are chosen in particular from alcohols, alpha-diols and (C1-C20) alkylphenols, these compounds being etherified with ethoxylated and / or propoxylated, glycerolated groups, and having at least one fatty chain comprising, for example, 8 to 18 carbon atoms, the number of ethylene oxide groups and / or propylene oxide may range in particular from 1 to 100, more particularly from 2 to 50, more particularly from 2 to 30, and the number of glycerol groups may In particular, the copolymers of ethylene oxide and of propylene oxide, the optionally oxyethylenated esters of fatty acids and of sorbitan, the esters of fatty acids and of sucrose, oxyalkylenated fatty acid esters, optionally oxyalkylenated alkylpolyglycosides, alkylglucoside esters, N-alkylglucamine and N-acyl-methylglucamine derivatives, aldobionamides and amine oxides. The nonionic surfactants are more particularly chosen from oxyalkylenated, glycerolated nonionic surfactants. The oxyalkylenated units are more particularly oxyethylenated units, oxypropylene, or their combination, preferably oxyethylenated. As examples of oxyalkylenated or glycerolated nonionic surfactants, mention may be made of: oxyalkylenated (C 8 -C 24) alkyl phenols; saturated or unsaturated, linear or branched, oxyalkylenated or glycerolated C 8 -C 30 alcohols; saturated or unsaturated, linear or branched, oxyalkylenated C 8 -C 30 amides; saturated or unsaturated, linear or branched, C 8 -C 30 acid esters of polyethylene glycols; saturated or unsaturated, linear or branched, C8-030 esters of oxyethylenated sorbitol; vegetable oils oxyethylenated, saturated or not; condensates of ethylene oxide and / or propylene oxide, among others, alone or in mixtures. Oxyethylenated and / or oxypropylenated silicones. Surfactants having a number of moles of ethylene oxide and / or propylene ranging from 1 to 100, preferably from 2 to 50, preferably from 2 to 30. Advantageously, the nonionic surfactants do not comprise oxypropylene units.

According to a preferred embodiment of the invention, the oxyalkylenated nonionic surfactants are chosen from oxyethylenated C 8 -C 30 alcohols comprising from 1 to 100 moles of ethylene oxide, preferably from 2 to 50, more particularly from 2 to 30 moles of ethylene oxide; linear or branched, saturated or unsaturated C 8 -C 30 acid esters of oxyethylenated sorbitol comprising from 1 to 100 moles of ethylene oxide. As an example of glycerolated nonionic surfactants, the C 8 -C 40 alcohols, glycerolated, are preferably used. By way of example of compounds of this type, mention may be made of lauryl alcohol containing 4 moles of glycerol (INCI name: POLYGLYCERYL-4 LAURYL ETHER), lauric alcohol containing 1.5 moles of glycerol, and alcohol. oleic acid with 4 moles of glycerol (INCI name: POLYGLYCERYL-4 OLEYL ETHER), oleic alcohol with 2 moles of glycerol (INCI name: POLYGLYCERYL-2 OLEYL ETHER), cetearyl alcohol with 2 moles of glycerol, alcohol 6 moles of glycerol, oleocetyl alcohol with 6 moles of glycerol, and octadecanol with 6 moles of glycerol. Among the glycerolated alcohols, it is more particularly preferred to use the alcohol C8 / 010 to one mole of glycerol, the C10 / 012 alcohol to 1 mole of glycerol and the alcohol in O12 to 1.5 moles of glycerol. Preferably, the additional surfactant or surfactants are chosen from nonionic, anionic or amphoteric surfactants. More particularly, the additional surfactant (s) present in the composition are chosen from nonionic surfactants. Preferably, the additional surfactant (s), when present, are (are) chosen from oxyalkylenated, especially oxyethylenated, oxypropylene, glycerolated, or more particularly oxyethylenated nonionic surfactants. or glycerolated, or mixtures thereof. Even more preferentially, the nonionic surfactants are chosen from oxyethylenated sorbitol esters, oxyethylenated fatty alcohols and glycerolated fatty alcohols, and mixtures thereof. In the dye composition, the amount of the additional surfactant (s), when present, is preferably from 0.1 to 50% by weight, more preferably from 0.5 to 20% by weight. , relative to the weight of said composition Medium The medium of the dye composition according to the invention is advantageously an aqueous medium. It may further comprise one or more organic solvents. As organic solvent, there may be mentioned for example linear or branched, preferably saturated monoalcohols or diols, comprising 2 to 10 carbon atoms, such as ethyl alcohol, isopropyl alcohol, hexylene glycol (2 methyl 2,4-pentanediol), neopentyl glycol and 3-methyl-1,5-pentanediol, butylene glycol, dipropylene glycol and propylene glycol; aromatic alcohols such as benzyl alcohol, phenylethyl alcohol; polyols with more than two hydroxyl functions such as glycerol; polyol ethers such as, for example, ethylene glycol monomethyl, monoethyl and monobutyl ethers, propylene glycol or its ethers such as, for example, propylene glycol monomethyl ether; and the alkyl ethers of diethylene glycol, especially C1-C4, for example, monoethyl ether or monobutyl ether diethylene glycol, alone or in mixture.

The organic solvents, when they are present, generally represent between 1 and 40% by weight relative to the total weight of the dye composition, and preferably between 5 and 30% by weight relative to the total weight of the dye composition.

Preferably the coloring composition is aqueous. In this case it preferably comprises from 30 to 95% of water by weight, better still from 40 to 90% by weight of water, more preferably from 50 to 85% by weight relative to the total weight of the composition. coloring.

The pH of the dye composition, if it is aqueous, is generally between 3 and 12, preferably between 5 and 11. Preferably between 7 and 11 inclusive. It can be adjusted to the desired value by means of acidifying or basifying agents usually used for dyeing keratinous fibers and in particular the alkaline agents of the invention mentioned above. Fatty Bodies The coloring composition may optionally comprise one or more fatty substances.

By "fatty substance" is meant an organic compound which is insoluble in water at ordinary temperature (25 ° C.) and at atmospheric pressure (760 mmHg) (solubility of less than 5% and preferably of 1%, even more preferentially at 0.1%). They have in their structure at least one hydrocarbon chain containing at least 6 carbon atoms or a chain of at least two siloxane groups. In addition, the fatty substances are generally soluble in organic solvents under the same conditions of temperature and pressure, such as, for example, chloroform, dichloromethane, carbon tetrachloride, ethanol, benzene, toluene, tetrahydrofuran ( THF), petrolatum oil or decamethylcyclopentasiloxane.

The fatty substances of the invention do not contain salified or unsaturated carboxylic acid groups (COOH or COO-). In particular, the fatty substances of the invention are neither (poly) oxyalkylenated nor (poly) glycerolated. By "oil" is meant a "fat" which is liquid at room temperature (25 ° C), and at atmospheric pressure (760 mm Hg). The term "non-silicone oil" means an oil containing no silicon atom (Si) and a "silicone oil" an oil containing at least one silicon atom.

More particularly, the fatty substances are chosen from C 6 -C 16 hydrocarbons, hydrocarbons containing more than 16 carbon atoms, non-silicone oils of animal origin, vegetable oils of triglyceride type, synthetic triglycerides, and fluorinated oils. fatty alcohols other than the aforementioned liquid fatty alcohols, esters of fatty acids and / or fatty alcohol other than triglycerides and vegetable waxes, non-silicone waxes, silicones, and mixtures thereof. It is recalled that the alcohols, esters and fatty acids more particularly have at least one hydrocarbon group, linear or branched, saturated or unsaturated, comprising 6 to 30, more preferably 8 to 30 carbon atoms, optionally substituted, in particular by one or several hydroxyl groups (in particular 1 to 4). If unsaturated, these compounds may comprise one to three carbon-carbon double bonds, conjugated or otherwise. Regarding the C 6 -C 16 hydrocarbons, the latter are linear, branched, optionally cyclic and preferably alkanes. By way of example, mention may be made of hexane, dodecane and isoparaffins, such as isohexadecane and isodecane. As hydrocarbon oils of animal origin, mention may be made of perhydrosqualene. Triglyceride oils of vegetable or synthetic origin are preferably chosen from liquid triglycerides of fatty acids containing from 6 to 30 carbon atoms, for instance triglycerides of heptanoic or octanoic acids or, for example, sunflower, corn, soy, squash, grape seed, sesame, hazelnut, apricot, macadamia, arara, sunflower, castor, avocado, triglycerides of caprylic / capric acids such as those sold by Stearineries Dubois or those sold under the names Miglyol® 810, 812 and 818 by Dynamit Nobel, jojoba oil, shea butter oil; The linear or branched hydrocarbons, of mineral or synthetic origin, of more than 16 carbon atoms, are preferably chosen from paraffin oils, petroleum jelly, vaseline oil, polydecenes, hydrogenated polyisobutene such as Parleam ®. As regards the C 6 -C 16 alkanes, the latter are linear, branched, and possibly cyclic. By way of example, mention may be made of hexane, dodecane and isoparaffins, such as isohexadecane and isodecane. As oils of animal, vegetable, mineral or synthetic origin, which can be used in the composition of the invention, mention may be made, for example, of: the fluorinated oils may be chosen from perfluoromethylcyclopentane and perfluoro-1,3-dimethylcyclohexane, sold under the names "FLUTEC® PC1" and "FLUTEC® PC3" by BNFL Fluorochemicals; perfluoro-1,2-dimethylcyclobutane; perfluoroalkanes such as dodecafluoropentane and tetradecafluorohexane, sold under the names "PF 5050®" and "PF 5060®" by the company 3M, or bromoperfluorooctyl sold under the name "Foralkyl®" by the company Atochem; nonafluoro-methoxybutane and nonafluoroethoxyisobutane; perfluoromorpholine derivatives, such as 4-trifluoromethyl perfluoromorpholine sold under the name "PF 5052®" by the company 3M. The different fatty alcohols of the liquid fatty alcohols that are suitable for carrying out the invention are more particularly chosen from solid fatty alcohols at room temperature and atmospheric pressure. More particularly, the fatty alcohol or alcohols are chosen from saturated or unsaturated alcohols, linear or branched, containing from 8 to 30 carbon atoms. Preferably, the fatty alcohol or alcohols are chosen from saturated and linear fatty alcohols having from 8 to 30 and preferably from 10 to 22 carbon atoms. For example, cetyl alcohol, stearyl alcohol, behenyl alcohol and their mixture (cetylstearyl alcohol).

With regard to fatty acid esters and / or fatty alcohols (solid or liquid), advantageously different from the triglycerides mentioned previously; mention may in particular be made of linear or branched C 1 -C 26 saturated or unsaturated aliphatic mono or poly acid esters and linear or branched C 1 -C 26 saturated or unsaturated aliphatic mono or polyalcohols, the total number of carbon of the esters being greater or equal to 6, more preferably greater than or equal to 10. Among the monoesters, mention may be made of dihydroabietyl behenate; octyldodecyl behenate; isoketyl behenate; cetyl lactate; C12-C15 alkyl lactate; isostearyl lactate; lauryl lactate; linoleyl lactate; oleyl lactate; (iso) stearyl octanoate; isocetyl octanoate; octyl octanoate; cetyl octanoate; decyl oleate; isocetyl isostearate; isocetyl laurate; isocetyl stearate; isodecyl octanoate; isodecyl oleate; isononyl isononanoate; isostearyl palmitate; methyl ricinoleate acetyl; myristyl stearate; octyl isononanoate; 2-ethylhexyl isononanoate; octyl palmitate; octyl pelargonate; octyl stearate; octyldodecyl erucate; oleyl erucate; ethyl palmitates and isopropyl palmitate, ethyl-2-hexyl palmitate, 2-octyldecyl palmitate, alkyl myristates such as isopropyl, butyl, cetyl, 2-octyldodecyl myristate; , styryl, hexyl stearate, butyl stearate, isobutyl stearate; dioctyl malate, hexyl laurate, 2-hexyldecyl laurate. Still within the scope of this variant, it is also possible to use esters of C 4 -C 22 di or tricarboxylic acids and of C 1 -C 22 alcohols and esters of mono di or tricarboxylic acids and of di, tri, alcohols. C2-026 tetra or pentahydroxy. These include: diethyl sebacate; diisopropyl sebacate; diisopropyl adipate; di-propyl adipate; dioctyl adipate; diisostearyl adipate; dioctyl maleate; glyceryl undecylenate; octyldodecyl stearoyl stearate; pentaerythrityl monoricinoleate; pentaerythrityl tetraisononanoate; pentaerythrityl tetrapelargonate; pentaerythrityl tetraisostearate; pentaerythrityl tetraoctanoate; propylene glycol dicaprylate; propylene glycol dicaprate, tridecyl erucate; triisopropyl citrate; triisotearyl citrate; glyceryl trilactate; glyceryl trioctanoate; trioctyldodecyl citrate; trioleyl citrate, propylene glycol dioctanoate; neopentyl glycol diheptanoate; diethylene glycol diisononanoate; and polyethylene glycol distearates. Among the esters mentioned above, it is preferred to use ethyl, isopropyl, myristyl, cetyl, stearyl palmitates, ethyl-2-hexyl palmitate, 2-octyldecyl palmitate, myristates of alkyls such as isopropyl, butyl, cetyl, 2-octyldodecyl myristate, hexyl stearate, butyl stearate, isobutyl stearate; dioctyl malate, hexyl laurate, 2-hexyldecyl laurate and isononyl isonononate, cetyl octanoate. The dye composition may also comprise, as fatty ester, esters and diesters of C 6 -C 30, preferably C 12 -C 22, fatty acid sugars. It is recalled that "sugar" is understood to mean oxygenated hydrocarbon compounds which have several alcohol functions, with or without an aldehyde or ketone function, and which contain at least 4 carbon atoms. These sugars can be monosaccharides, oligosaccharides or polysaccharides. Suitable sugars include, for example, sucrose (or sucrose), glucose, galactose, ribose, fucose, maltose, fructose, mannose, arabinose, xylose, lactose, and their derivatives. especially alkyls, such as methyl derivatives such as methylglucose. The esters of sugars and of fatty acids may be chosen in particular from the group comprising the esters or mixtures of esters of sugars described above and of linear or branched, saturated C 6 -C 30, preferably linear or branched, 0-12-022 fatty acids. or unsaturated. If unsaturated, these compounds may comprise one to three carbon-carbon double bonds, conjugated or otherwise.

The esters according to this variant may also be chosen from mono-, di-, tri- and tetraesters, polyesters and mixtures thereof. These esters may be for example oleate, laurate, palmitate, myristate, behenate, cocoate, stearate, linoleate, linolenate, caprate, arachidonates, or mixtures thereof, such as, in particular, the mixed oleo-palmitate, oleostearate and palmitostearate esters. More particularly, mono- and di-esters are used, and in particular mono- or dioleate, stearate, behenate, oleopalmitate, linoleate, linolenate, oleostearate, sucrose, glucose or methylglucose.

By way of example, mention may be made of the product sold under the name Glucate® DO by the company Amerchol, which is a methylglucose dioleate. Mention may also be made, by way of examples, of esters or mixtures of esters of fatty acid sugar: the products sold under the names F160, F140, F110, F90, F70, SL40 by the company Crodesta, respectively denoting sucrose palmito-stearates of 73% monoester and 27% di- and tri-ester, 61% monoester and 39% di-, tri- and tetraester, 52% monoester and 48% monoester; % di-, tri, and tetraester, 45% monoester and 55% di-, tri-, and tetraester, 39% monoester, and 61% di-, tri-, and tetra- ester, and sucrose mono-laurate; the products sold under the name Ryoto Sugar Esters, for example referenced B370 and corresponding to sucrose behenate formed from 20% monoester and 80% di-triester-polyester; the sucrose mono-dipalmito-stearate marketed by Goldschmidt under the name Tegosoft® PSE.

The non-silicone wax or waxes are chosen in particular from carnauba wax, candelilla wax, and alfa wax, paraffin wax, ozokerite, vegetable waxes such as olive wax or rice wax. hydrogenated jojoba wax or the absolute waxes of flowers such as the essential wax of blackcurrant sold by the company BERTIN (France), animal waxes such as beeswax, or modified beeswax (cerabellina) ; other waxes or waxy raw materials that can be used according to the invention are, in particular, marine waxes, such as the one sold by SOPHIM under the reference M82, and polyethylene or polyolefin waxes in general. The silicones that can be used in the dyeing composition of the present invention are volatile or non-volatile, cyclic, linear or branched silicones, modified or not with organic groups, having a viscosity of 5 × 10 -6 to 2.5 m 2 / s at 25 ° C. C and preferably 1.10-5 to 1m2 / s.

The silicones that can be used in accordance with the invention can be in the form of oils, waxes, resins or gums. Preferably, the silicone is chosen from polydialkylsiloxanes, especially polydimethylsiloxanes (PDMS), and organomodified polysiloxanes comprising at least one functional group chosen from amino groups and alkoxy groups. Organopolysiloxanes are further defined in Walter Noll's "Chemistry and Technology of Silicones" (1968), Academie Press. They can be volatile or nonvolatile.

When they are volatile, the silicones are more particularly chosen from those having a boiling point of between 60 ° C. and 260 ° C., and even more particularly from: (i) cyclic polydialkylsiloxanes containing from 3 to 7, preferably from 4 to 5 silicon atoms. It is, for example, octamethylcyclotetrasiloxane sold in particular under the name VOLATILE SILICONE® 7207 by UNION CARBIDE or SILBIONE® 70045 V2 by RHODIA, decamethylcyclopentasiloxane marketed under the name VOLATILE SILICONE® 7158 by UNION CARBIDE, and SILBIONE ® 70045 V5 by RHODIA, as well as their mixtures. Mention may also be made of cyclocopolymers of the dimethylsiloxane / methylalkylsiloxane type, such as the VOLATILE® SILICONE FZ 3109 marketed by UNION CARBIDE, of formula: pD "-D 'D" D' -1 with D ': CH3 - Si - - CH3 CH3 - Si - - I C8H17 with D ": Cyclic polydialkylsiloxane mixtures can also be mentioned with organic compounds derived from silicon, such as the mixture of octamethylcyclotetrasiloxane and tetramethylsilylpentaerythritol (50/50) and the octamethylcyclotetrasiloxane mixture and oxy-1,1 '- (hexa-2,2,2', 2 ', 3,3'-trimethylsilyloxy) bis-neopentane (ii) linear volatile polydialkylsiloxanes having 2 to 9 silicon atoms and having a viscosity less than or equal to 5.10-6 m 2 / s at 25 ° C. It is, for example, decamethyltetrasiloxane marketed in particular under the name "SH 200" by Toray Silicone, silicones falling into this class are also described. in L' article published in Cosmetics and Toiletries, Vol. 91, Jan. 76, p. 27-32 - TODD & BYERS "Volatile Silicone fluids for cosmetics".

Non-volatile polydialkylsiloxanes, polydialkylsiloxane gums and resins, polyorganosiloxanes modified with the above organofunctional groups and mixtures thereof are preferably used. These silicones are more particularly chosen from polydialkylsiloxanes, among which may be mentioned mainly polydimethylsiloxanes with trimethylsilyl end groups. The viscosity of the silicones is measured at 25 ° C. according to the ASTM 445 Appendix C standard. Among these polydialkylsiloxanes, mention may be made, without limitation, of the following commercial products: SILBIONE® oils of the 47 and 70 047 series or the MIRASIL® oils marketed by RHODIA, such as, for example, 70 047 V 500 000; the oils of the MIRASIL® series marketed by RHODIA; the oils of the 200 series of Dow Corning, such as DC200 having a viscosity of 60,000 mm 2 / s; - VISCASIL® oils from GENERAL ELECTRIC and some oils from SF series (SF 96, SF 18) from GENERAL ELECTRIC. Mention may also be made of polydimethylsiloxanes with 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 sold under the names "ABIL WAX® 9800 and 9801" by GOLDSCHMIDT, which are polydialkyl (C1-C20) siloxanes. The silicone gums that can be used in accordance with the invention are in particular polydialkylsiloxanes, preferably polydimethylsiloxanes having high average molecular weights of between 200,000 and 1,000,000 used alone or in a mixture in a solvent. This solvent may be chosen from volatile silicones, polydimethylsiloxane (PDMS) oils, polyphenylmethylsiloxane (PPMS) oils, isoparaffins, polyisobutylenes, methylene chloride, pentane, dodecane, tridecane or their mixtures.

More particularly useful products according to the invention are mixtures such as: - mixtures formed from a hydroxyl end-of-the-chain polydimethylsiloxane, or dimethiconol (CTFA) and a cyclic polydimethylsiloxane also called cyclomethicone (CTFA) such that the product Q2 1401 marketed by Dow Corning; mixtures of a polydimethylsiloxane gum and a cyclic silicone such as the product SF 1214 Silicone Fluid from the company General Electric, this product is an SF 30 gum corresponding to a dimethicone, having a number average molecular weight of 500,000 solubilized in oil SF 1202 Silicone Fluid corresponding to decamethylcyclopentasiloxane; mixtures of two PDMSs of different viscosities, and more particularly of a PDMS gum and a PDMS oil, such as the product SF 1236 from the company General Electric. The product SF 1236 is the mixture of an SE 30 gum defined above having a viscosity of 20 m 2 / s and an SF 96 oil with a viscosity of 5 × 10 -6 m 2 / s. This product preferably comprises 15% of SE gum and 85% of an SF 96 oil. The organopolysiloxane resins that can be used in accordance with the invention are crosslinked siloxane systems containing the units: R 2 SiO 2/2, R 3 SiO 1/2, RSiO 3 / 2 and SiO412 wherein R represents an alkyl having 1 to 16 carbon atoms. Among these products, those that are particularly preferred are those in which R denotes a C1-C4 lower alkyl group, more particularly methyl.

Among these resins may be mentioned the product sold under the name "Dow Corning 593" or those sold under the names "Silicone Fluid SS 4230 and SS 4267" by the company General Electric and which are silicones of dimethyl / trimethyl siloxane structure. Mention may also be made of the trimethylsiloxysilicate type resins sold in particular under the names X22-4914, X21-5034 and X21-5037 by the company Shin-Etsu. The organomodified silicones that may be used in accordance with the invention are silicones as defined above and comprising in their structure one or more organofunctional groups attached via a hydrocarbon-based group. In addition to the silicones described above, the organomodified silicones may be polydiarylsiloxanes, in particular polydiphenylsiloxanes, and polyalkylarylsiloxanes functionalized with the organofunctional groups mentioned above. The polyalkylarylsiloxanes are especially chosen from linear and / or branched polydimethyl / methylphenylsiloxanes, polydimethyl / diphenylsiloxanes having a viscosity ranging from 1 × 10 -5 to 5 × 10 -2 m 2 / s at 25 ° C. Among these polyalkylarylsiloxanes, mention may be made, by way of example, of the products sold under the following names: SILBIONE® oils of the 70 641 series from RHODIA; . RHODORSIL® 70 633 and 763 RHODIA series of oils; . DOW CORNING 556 COSMETIC GRAD FLUID oil from DOW CORNING; . silicones of the PK series from BAYER, such as the product PK20; . silicones of the PN and PH series of BAYER, such as the PN1000 and PH1000 products; . some oils of the SF series of GENERAL ELECTRIC such as SF 1023, SF 1154, SF 1250, SF 1265.

Among the organomodified silicones, mention may be made of polyorganosiloxanes comprising: substituted or unsubstituted amino groups, such as the products sold under the name GP 4 Silicone Fluid and GP 7100 by the company Genesee, or the products sold under the names Q2 8220 and DOW CORNING 929 or 939 by Dow Corning. The substituted amino groups are, in particular, C1-C4 aminoalkyl groups; alkoxylated groups, such as the product sold under the name "Silicone Copolymer F-755" by SWS Silicones and Abil Wax® 2428, 2434 and 2440 by the company GOLDSCHMIDT. More particularly, the fatty substances are chosen from liquid or pasty compounds at room temperature (25 ° C.) and at atmospheric pressure. Preferably, the fatty substance is a liquid compound at a temperature of 25 ° C. and at atmospheric pressure. The fatty substances are advantageously chosen from C 6 -C 16 alkanes, non-silicone oils of vegetable, mineral or synthetic origin, fatty alcohols, fatty acid esters and / or fatty alcohol esters, or mixtures thereof. Preferably, the fatty substance is chosen from liquid petrolatum, C6-C16 alkanes, polydecenes, liquid esters of fatty acids and / or fatty alcohol or mixtures thereof. In a first variant of the invention the total fat content in the mixture, when it contains, is less than 20% by weight relative to the total weight of the composition (mixture of dye and oxidizing compositions). It then preferably varies from a content greater than 0 to 19%, more preferably from a content of greater than 0 to 15%, more preferably from a content of greater than 0 to 10% by weight relative to the total weight of the composition. mixture of coloring and oxidizing compositions). In a second variant of the invention the total fat content is greater than or equal to 20% by weight relative to the total weight of the composition (mixture of dye and oxidizing compositions). It then varies preferably from 20 to 80%, more preferably from 30 to 75%, more preferably from 50 to 70% by weight relative to the total weight of the composition (mixture of dyeing and oxidizing compositions). Other adjuvants The coloring composition may also contain various adjuvants conventionally used in compositions for dyeing hair, such as, for example, anionic, cationic, nonionic, amphoteric or zwitterionic polymers, or mixtures thereof; thickening agents such as crosslinked acrylic acid homopolymers, cellulosic thickeners (with for example hydroxyethylcellulose, hydroxypropylcellulose, carboxymethylcellulose), guar gum and its derivatives (for example hydroxypropylguar), microbial origin (especially xanthan gum, scleroglucan gum); mineral thickeners such as clays; ammonium salts such as ammonium chloride, ammonium acetate; antioxidants or reducing agents such as ascorbic acid, erythorbic acid, sulfite, bisulfite or ammonium metabisulfite, ammonium thiolactate; penetrating agents, sequestering agents such as ethylenediamine tetraacetic or its salts; perfumes ; titanium oxides; buffers; dispersants; and preservatives, or mixtures thereof. The adjuvants above are generally present in an amount for each of them between 0.01 and 20% by weight relative to the weight of the dye composition.

Oxidizing Composition Chemical Oxidizing Agent The second composition used in the process according to the invention also comprises at least one chemical oxidizing agent.

It should be noted that the oxidizing agents present in the oxidizing composition are qualified as "chemical" to differentiate them from the oxygen in the air. In particular, the chemical oxidizing agent (s) that are suitable for the present invention are, for example, chosen from hydrogen peroxide, urea peroxide, alkali metal bromates or ferricyanides, peroxygenated salts such as, for example, persulfates, perborates, peracids and their precursors and alkali or alkaline earth metal percarbonates. Advantageously, the oxidizing agent is hydrogen peroxide. The content of oxidizing agent (s) is more particularly from 0.1 to 20% by weight, preferably from 0.5 to 10% by weight, relative to the weight of the oxidizing composition. Additional Surfactants The oxidizing composition may further comprise one or more additional surfactants different from the aforementioned fatty acids. In particular, the additional surfactant or surfactants are chosen from anionic surfactants different from the aforementioned fatty acids, amphoteric, zwitterionic, cationic or nonionic, and preferentially nonionic. Reference may be made to the lists of compounds of this type given in the context of the description of the dye composition. Preferably, these additional surfactants, if present, are chosen from nonionic surfactants.

Even more preferably, the oxyalkylenated nonionic surfactants are chosen from oxyethylenated C 8 -C 30 alcohols comprising from 1 to 100 moles of ethylene oxide, preferably from 2 to 50 and more preferably from 2 to 30; linear or branched, non-oxyalkylenated, saturated or unsaturated C 8 -C 30 amides or containing from 1 to 100 moles of ethylene oxide, preferably from 2 to 50 and more preferably from 2 to 30; linear or branched, saturated or unsaturated C 8 -C 30 acid esters of oxyethylenated sorbitol comprising from 1 to 100 moles of ethylene oxide, and mixtures thereof. In the oxidizing composition, the amount of the additional surfactant (s), when present, is preferably from 0.1 to 50% by weight, more preferably from 0.5 to 20% by weight. , relative to the weight of said composition Medium The oxidizing composition is advantageously an aqueous composition. It may also include one or more organic solvents selected from those previously listed; the latter more particularly, when present, from 1 to 40% by weight relative to the weight of the oxidizing composition, and preferably from 5 to 30% by weight. The oxidizing composition also preferably comprises one or more acidifying agents. Among the acidifying agents, mention may be made, for example, of mineral or organic acids such as hydrochloric acid, orthophosphoric acid, sulfuric acid, carboxylic acids such as acetic acid, tartaric acid citric acid, lactic acid, sulphonic acids. Usually, the pH of the oxidizing composition, when aqueous, is less than 7. Other adjuvants The oxidizing composition may also contain various adjuvants conventionally used, such as, for example, anionic, cationic, nonionic, amphoteric, zwitterionic polymers. or their mixtures; thickening agents such as crosslinked acrylic acid homopolymers, cellulosic thickeners (with for example hydroxyethylcellulose, hydroxypropylcellulose, carboxymethylcellulose), guar gum and its derivatives (for example hydroxypropylguar), microbial origin (especially xanthan gum, scleroglucan gum); sequestering agents such as ethylenediamine tetraacetic or its salts; perfumes ; and preservatives, or mixtures thereof. The adjuvants above are generally present in an amount for each of them between 0.01 and 20% by weight relative to the weight of the oxidizing composition.

Propellant Gas As has been indicated previously, at least one of the dyeing and / or oxidizing compositions used in the process according to the invention is delivered from a pressurized container. In other words, the mixture used in the process according to the invention comprises (initially) one or more propellants. It should be noted that in the context of the invention, the propellant gas can be used to allow the formation of propellants. expulsion of the composition or compositions, but also to facilitate or cause their expansion.

As indicated above, at least one of the compositions comprises at least one propellant, and preferably both compositions comprise at least one propellant. In other words, the gas or gases are mixed with the composition. As a propellant gas suitable for the implementation of the invention, mention may be made of the gases usually employed in the cosmetics field, in particular the volatile hydrocarbons, optionally halogenated, for example n-butane, propane isobutane, pentane and their halogenated derivatives; carbon dioxide, nitrous oxide, dimethyl ether, nitrogen, alone or in mixtures. Preferably, the propellant gas or gases are chosen from alkanes and in particular from n-butane, propane and isobutane, and mixtures thereof. The gases are under pressure, more particularly at least partially in the form of liquid.

In the preferred case where each of the compositions comprises at least one propellant gas, these may be identical or different, from one composition to another, whether in kind of the gas or gases, and in their respective proportions. they are mixtures.

Preferably, the content of propellant gas (s) represents a content ranging from 1 to 30% by weight relative to the weight of the composition, preferably from 2 to 15% by weight relative to the weight of the composition in which it ( s) is (are). Device The mixture applied to the fibers is thus obtained from the mixture of the dyeing and oxidizing compositions described above. The mixture can be obtained from a single pressurized container comprising either the oxidizing composition or the dye composition as previously described, said composition being mixed before use with a composition (coloring or oxidizing respectively) from a non-pressurized container such as a bottle, a tube; the mixture of the two compositions comprising at least one unsaturated C 8 -C 40 fatty acid, in acid or salified form, and at least one C 8 -C 30 fatty alcohol which is liquid at ambient temperature and at atmospheric pressure. The mixture may also be obtained from a single pressurized container comprising the oxidizing composition and the coloring composition as previously described in two separate pockets; the mixture of the two compositions comprising at least at least one unsaturated C 8 -C 40 fatty acid, in acid or salified form, and at least one C 8 -C 30 fatty alcohol which is liquid at ambient temperature and at atmospheric pressure. Preferably, said mixture used in the context of the invention is obtained from a device comprising: a first container containing the dyeing composition described above, and a second container containing the oxidizing composition also described previously; at least one of the containers being pressurized, preferably both containers being pressurized, means for delivering the compositions; - The mixture of the two compositions comprising at least one unsaturated fatty acid 08-C40 in acid or salified form; and comprising at least one C 8 -C 30 fatty alcohol liquid at ambient temperature and at atmospheric pressure.

Preferably, each container is surmounted by a means for delivering each composition. One or both containers may be rigid-walled and directly contain the composition. Alternatively, one or both containers may be rigid-walled and enclose a flexible-walled pouch that contains the composition. According to this embodiment, either the coloring composition is in a pocket or the oxidizing composition is in a pocket or both.

According to this configuration, the composition in the pocket may not include propellant, the latter being in the volume defined between the rigid walls of the container and the bag. Preferably, the composition contained in the bag also comprises at least one propellant gas. According to another variant, the device comprises a first rigid-walled container which contains one or other of the dyeing or oxidizing compositions, the first rigid walls enclosing a flexible pouch which contains the other coloring or oxidizing compositions and which constitutes a second container. According to another variant, which is preferred, the device comprises two containers with rigid walls, preferably without a pocket, each containing a composition. The device comprises means for delivering the compositions, the means comprising at least one dispensing valve which overcomes the container (s). Preferably, the means for delivering the compositions comprises two dispensing valves, each valve surmounting a container. The at least one valve is in selective fluid communication with the interior of the at least one container via an inlet port of the valve, the communication being established in response to the actuation of an actuating means, such as a button. -poussoir. When the device comprises a first rigid-walled container which encloses a flexible pouch, a single valve is provided to deliver the two compositions. The valve is then provided with two inlet ports, one of the ports being able to communicate with the inside of the bag and the other with the volume defined between the bag and the rigid walls of the container.

When the containers do not contain a pocket, they are provided with a dip tube for conveying the composition to the inlet port of the dispensing valve. When the containers enclose a pocket, the inlet port of the valve opens into the pocket. The device may comprise at least one diffuser that caps the valve or valves. According to a first variant, the device comprises a single diffuser which covers the two valves. According to a second variant, the device comprises two diffusers, each independently styling a valve. The push button can be part of the diffuser. The diffuser may be provided with one or more distribution ducts provided for conveying the composition or compositions to one or more dispensing orifices. When the device comprises two diffusers, each of the diffusers is provided with a conduit for conveying the composition between the outlet orifice of the valve and a dispensing orifice. When the device comprises a single diffuser, it may be provided with two delivery conduits compositions, each conduit communicating with the outlet port of a valve.

According to a first embodiment, the two ducts each end at a dispensing orifice (not communicating with each other before the dispensing orifice). According to this configuration, the mixture of the compositions is made only after being distributed (thus after the dispensing orifices). According to a second embodiment, the two ducts end in a mixing chamber, from which a single duct is directed towards a single dispensing orifice. According to this configuration, the mixture of the compositions is made just before its expulsion from the device. Preferably, the two ducts open directly to each one of a dispensing orifice.

When the device comprises two diffusers, namely that it comprises two containers each surmounted by a valve and a diffuser that are specific to it, the two containers may be free with respect to each other, it is ie not secured.

Alternatively, the two containers may be secured, for example by means of an outer envelope covering partially containers (including thermoformed film, rigid metal or plasticized envelope), or even by means of notches made in the outer wall of each container allowing them to hang. When the device comprises a single diffuser which caps the two valves, it allows to secure the two containers. In this case, it is also possible to provide an outer envelope covering part of the containers. According to a particular embodiment of the invention, the device comprises two containers with solid walls, the device for delivering the compositions concomitantly, via one or preferably two dispensing orifices. Preferably, according to this embodiment, the containers are rigid, a dispensing valve overlying each of the containers, a single diffuser covering the two valves.

Of course, the devices are designed in such a way that the dyeing and oxidizing compositions are brought into contact at the time of application of the mixture obtained. Advantageously, the mixture of the dye composition and the oxidizing composition used in the process according to the invention, which is applied to the fibers, is in the form of a foam which is therefore produced just before its application. .

More particularly, the dye composition that is delivered (obtained) from a pressurized container is in the form of a cream, a gel, a foam, preferably in the form of a foam. Furthermore, the oxidizing composition that is delivered (obtained) from a pressurized container is in the form of a cream, a gel, a foam, preferably in the form of a foam. The pH of the mixture of the dyeing and oxidizing compositions is advantageously between 3 and 12, preferably between 5 and 11, preferably between 7 and 11 inclusive.

It should be noted that the distribution valve (s), as well as the propellant (s) content, are adapted so as to allow the distribution of the compositions in respective appropriate proportions.

In practice the weight ratio of coloring composition / oxidizing composition in the distributed mixture varies from 0.25 to 4 and preferably from 0.5 to 2. Even more preferentially, this ratio is 1.

The dyeing process according to the invention consists in applying the mixture thus obtained to human, dry or moist keratin fibers for a time sufficient to develop the desired coloration. According to the invention, the mixture obtained according to the process of the invention is applied to the keratinous fibers, preferably in the form of a foam.

The dyeing process is generally carried out at room temperature (between 15 to 25 ° C) and up to temperatures of up to 60 ° C to 80 ° C. After a pause of one minute to one hour, preferably from 5 minutes to 30 minutes, the keratin fibers are rinsed with water, optionally washed with a shampoo followed by rinsing with water. The following example serves to illustrate the invention without being limiting in nature.

EXAMPLE Coloring composition (contents expressed in g% as it is): ingredients Concentration oleic alcohol polyglycerol (2 moles) (CHIMEXANE NC, 4 marketed by CHIMEX) oleic alcohol polyglycerol (4 moles) (at 78% by weight; 69 (Chimexane NB marketed by Chimex)) Oleic acid 3 oleic amine oxyethylenated (20E) (Rhodameen 02 / V, 7 sold by the company Rhodia) laurylamino succinamate of diethylaminopropyl, salt of 5.45 sodium in aqueous solution oleic alcohol alkyl monoethanolamide (C13 / C1570 / 30; 50% linear) carboxylic ether (20E) (AMIDET A15 / LAO 55 marketed by KAO) ethyl alcohol 96 degrees denatured 5 propylene glycol 9.7 perfume 0.75 hexylene glycol 9.3 erythorbic acid 0.12 diethylene triamine pentacetic acid, pentasodium salt 2.4 aqueous 40% sodium metabisulfite powder 0.45 ammonium acetate 0.8 1-methyl-2 5-diamino-benzene 0 1,3-bis [(4-aminophenyl) (2-oxo-hydroxyethyl) -amino] -2-propanol 1,3-dihydroxybenzene, 0.10 2-methyl-1,3-dihydroxybenzene, 0.05 1 tetrahydrochloride -hydroxy-3-amino-benzene 0.01 ammonia (concentration 20% ammonia) 10.2 deionized water QSP Oxidizing composition (contents expressed in g% as-is) chemical name Concentration mixture cetylstearyl alcohol / cetylstearyl alcohol 2.85 oxyethylene (33 OE) (SINNOWAX AO, sold by the company COGNIS) alkyl acid monoethanolamide (C13 / O15 70/30 50% linear) carboxylic ether (20E) 0.85 glycerol 0.5 tetrasodium pyrophosphate, 10 H2O 0.02 disodium tin hexahydroxide disodium 0.04 diethylene triamine pentaacetic acid, pentasodium salt 0.15 40% aqueous solution 50% hydrogen peroxide 12 phosphoric acid Qs pH 2.2 deionized water QSP 100 Each of the compositions above is packaged in an aerosol container in the presence of the following propellants, in the weight composition / propellant gases of 94/6. - Coloring composition: 50% propane, 35% n-butane, 15% i-butane - Oxidizing composition: 25% propane, 40% n-butane, 35% i-butane The two aerosols are secured via a dispensing head incorporating the two distribution channels from the two pressurized containers, the mixture of the two compositions in a 1/1 weight ratio is effected only immediately after the outlet of the dispensing head.

The resulting mixture is left on the fibers for 30 minutes at room temperature (25 ° C). A clear natural shade is obtained, covering the white hair well.

Claims (2)

REVENDICATIONS1. A process for dyeing keratinous fibers in which a mixture obtained from a coloring composition comprising at least one oxidation dye precursor and an oxidizing composition comprising at least one chemical oxidizing agent is applied to said fibers. at least one of the compositions being delivered from a pressurized container; the mixture of the two compositions comprising at least one unsaturated C8-C40 fatty acid, in acid or salified form; and comprising at least one C8-C30 fatty alcohol liquid at room temperature and at atmospheric pressure. 2. Method according to the preceding claim, characterized in that the unsaturated fatty acid or acids are C8-C40, preferably C8-C30, linear or branched, optionally bearing one or more hydroxyl groups, and contain at least one unsaturated, preferably from one to six unsaturations, conjugated or not, and are in acid or salified form, Process according to any one of the preceding claims, characterized in that the unsaturated fatty acid or acids are chosen from oleic acid. , linoleic acid, linolenic acid, di-homo-v-linolenic acid, arachidonic acid, erucic acid, sorbic acid, docosahexaenoic acid, eicosapentaenoic acid, acid palmitoleic acid, nervonic acid, alone or in mixtures, in acid or salified form, the unsaturated fatty acid is preferably oleic acid, in acid or salified form. 4. Process according to any one of the preceding claims, characterized in that the content of unsaturated fatty acid (s) represents from 0.1 to 50% by weight, preferably from 0.5 to 10% by weight, and even more particularly 1 to 5% by weight relative to the weight of the mixture. 5. Process according to any one of the preceding claims, characterized in that the C8-C30 fatty alcohol or alcohols that are liquid at room temperature and at atmospheric pressure are linear or branched monoalcohols, saturated or comprising at least one introduction, and preferably one to three unsaturations, conjugated or not. Process according to any one of the preceding claims, characterized in that the C8-C30 fatty alcohol or alcohols which are liquid at ambient temperature and at atmospheric pressure, are chosen from isostearyl alcohol, octyldodecanol, 2-butyloctanol, 2-hexyldecanol, 2-undecylpentadecanol, oleic alcohol, linoleic alcohol, linolenic alcohol, undecylenic alcohol, palmitoleic alcohol, arachidonic alcohol, erucic alcohol, alone or in mixtures. 7. Process according to any one of the preceding claims, characterized in that the C8-C30 fatty alcohol or alcohols which are liquid at ambient temperature and at atmospheric pressure comprise at least one unsaturation and preferably from one to three unsaturations, conjugated or not ; the fatty alcohol C8-C30 liquid at room temperature and at atmospheric pressure is preferably oleic alcohol. Process according to any one of the preceding claims, characterized in that the content of C 8 -C 30 fatty alcohol (s) at room temperature and at atmospheric pressure is from 0.1 to 30% by weight, preferably 1 to 20% by weight, more preferably 2 to 10% by weight, based on the weight of the mixture. Process according to any one of the preceding claims, characterized in that the oxidation dye precursor (s) are chosen from oxidation bases and couplers. 10. Method according to any one of the preceding claims, characterized in that the pressurized container or containers comprise at least one propellant gas chosen from volatile hydrocarbons, optionally halogenated, for example n-butane, propane or isobutane. pentane and their halogenated derivatives; carbon dioxide, nitrous oxide, dimethyl ether, nitrogen, compressed air, alone or in mixtures, preferably among the alkanes, still more preferably from n-butane, propane, isobutane and their mixtures. 11. Process according to any one of the preceding claims, characterized in that the propellant gas or gases represent a content ranging from 1 to 30% by weight. relative to the weight of the composition, preferably from 2 to 30% by weight relative to the weight of the composition. Process according to any one of the preceding claims, characterized in that the coloring composition and the oxidizing composition each comprise at least one identical or different propellant gas. Process according to any one of the preceding claims, characterized in that the chemical oxidizing agent (s) is (are) chosen from hydrogen peroxide, urea peroxide, alkali metal bromates or ferricyanides, peroxygenated salts and peracids and their precursors; and preferably hydrogen peroxide. Process according to any one of the preceding claims, characterized in that the dye composition comprises at least one alkaline agent, more particularly chosen from ammonia, alkanolamines and amino acids, or mixtures thereof; preferably ammonia, alkanolamines and mixtures thereof. Process according to the preceding claim, characterized in that the alkaline agent or agents represent a content ranging from 0.01 to 30% by weight, preferably from 0.1 to 20% by weight, more particularly from 1 to 10% by weight. , based on the weight of the dye composition. Process according to any one of the preceding claims, characterized in that the dye composition and / or the oxidizing composition comprises at least one additional surfactant different from the aforementioned fatty acid (s), in particular chosen from cationic, amphoteric, nonionic surfactants and different anions from the above-mentioned fatty acid (s). Process according to any one of the preceding claims, characterized in that the coloring composition and the oxidizing composition are each in a different container, constituting a single pressurized device, for delivering the two compositions. Process according to any one of Claims 1 to 17, characterized in that the coloring composition and the oxidizing composition are each in a different pressurized container, the containers being optionally joined together and making it possible to deliver the compositions concomitantly. , via one or two dispensing orifices. Process according to any one of the preceding claims, characterized in that the mixture of the coloring composition and the oxidizing composition takes place after the distribution openings. 20. A process according to any one of the preceding claims, characterized in that the mixture of the dye composition and the oxidizing composition, which is applied to the fibers, is in the form of a foam. 21. Device suitable for carrying out the method according to any one of the preceding claims, characterized in that it comprises: a first container containing a dye composition comprising at least one oxidation dye precursor, and a second container containing an oxidizing composition comprising at least one chemical oxidizing agent, - at one of the containers being pressurized, preferably both containers being pressurized; means for delivering the compositions; the mixture of the two compositions comprising at least one unsaturated C8-C40 fatty acid, in acid or salified form; and comprising at least one C8-C30 fatty alcohol liquid at room temperature and at atmospheric pressure. 22. Device according to claim 21, wherein each container is surmounted by a means for delivering each composition. 23. Device according to claims 21 or 22, wherein the containers are secured, the device for delivering the compositions concomitantly, via one or preferably two dispensing orifices.