FR2940056A1 - Coloring keratin fibers, preferably human keratin fibers such as hair, comprises applying on the fibers a composition comprising e.g. surfactants, cosmetic composition comprising e.g. direct dyes and composition comprising oxidizing agent - Google Patents

Abstract

Coloring keratin fibers, preferably human keratin fibers such as hair, in the presence of an oxidizing agent, comprises applying an anhydrous cosmetic composition (A) comprising one or more fatty substance and one or more surfactants, a cosmetic composition (B) comprising one or more oxidation dyes and/or one or more direct dyes and one or more organic amine salts having a negative logarithm of base dissociation constant (pKb) value of less than 12 at 25[deg] C; and a composition (C) comprising one or more oxidizing agents, on the fibers. Independent claims are included for: (1) the anhydrous composition comprising one or more fatty substances, one or more surfactants, one or more oxidation dyes and/or direct dyes, and one or more organic acid salts; and (2) device with several compartments comprising a first compartment containing (A); a second compartment containing (B); and a third compartment containing (C).

Description

B08-4318 GD / GL OA 08545

Société Anonyme known as L'OREAL

Process for direct lightening or oxidation dyeing in the presence of an organic amine salt and appropriate device Invention of: HERCOUET Leila LAGRANGE Alain Lightening direct dyeing or oxidation process in the presence of an organic amine salt and device The subject of the present invention is a process for dyeing keratinous fibers, in particular human keratinous fibers such as the hair in the presence of one or more oxidizing agents, which comprises the use of an anhydrous cosmetic composition (A). comprising one or more fatty substances and one or more surfactants, a cosmetic composition (B) comprising one or more dyes and one or more organic amine salts and an oxidizing composition (C). The present invention also relates to a multi-compartment device comprising a first compartment containing the abovementioned anhydrous cosmetic composition, a second compartment containing a cosmetic composition comprising one or more dyes and one or more organic amine salts and a third compartment containing an oxidizing composition. . The present invention relates to the field of dyeing keratin fibers and more particularly to the field of hair dyeing. For a long time, many people have been trying to change the color of their hair and in particular to hide their white hair. For this purpose, there are essentially two types of coloring that have been developed. The first type of staining is the so-called permanent staining or oxidation which uses dye compositions containing oxidation dye precursors, generally called oxidation bases. These oxidation bases are colorless or weakly colored compounds which, when combined with oxidizing products, can give rise to colored compounds by a process of oxidative condensation. It is also known that the shades obtained with these oxidation bases can be varied by combining them with couplers or color modifiers, the latter being chosen in particular from aromatic meta-diamines, meta-aminophenols, meta-aminophenols and meta-aminophenols. 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 second type of staining is so-called semipermanent staining, or direct staining, which consists of applying to the keratin fibers direct dyes which are colored and coloring molecules, having an affinity for the fibers, to be allowed to pausate to allow the molecules to penetrate, diffusion inside the fiber, then rinse them. In order to perform these stains, the direct dyes generally employed are chosen from nitrobenzene, anthraquinone, nitropyridine, azo, xanthene, acridine, azine or triarylmethane direct dyes. This type of process does not require the use of an oxidizing agent to develop the coloring. However, it is not excluded to implement in order to obtain a lightening effect with the coloring. We then speak of a direct or semi-permanent coloration in lightening conditions. The permanent or semipermanent coloring processes in lightening conditions therefore consist in using, with the dyeing composition, an aqueous composition comprising at least one oxidizing agent, under alkaline pH conditions in the vast majority of cases. This oxidizing agent has the role, at least in part, of degrading the melanin of the hair, which, depending on the nature of the oxidizing agent present, leads to a more or less pronounced lightening of the fibers. Thus, for relatively low lightening, the oxidizing agent is generally hydrogen peroxide. When greater lightening is desired, it is customary to use peroxygenated salts, such as persulfates for example, in the presence of hydrogen peroxide.

One of the difficulties is that these processes are carried out under alkaline conditions and that the most commonly used alkaline agent is ammonia. The use of ammonia is particularly advantageous in this type of process. Indeed, it makes it possible to adjust the pH of the composition to an alkaline pH to allow the activation of the oxidizing agent. But this alkaline agent also causes swelling of the keratinous fiber, with an opening of the scales, which promotes the penetration of the oxidant, as well as dyes, essentially the oxidation dyes, inside the fiber, and therefore increases the efficiency of the staining reaction. However, this alkalizing agent is very volatile, which causes inconvenience to the user because of the strong characteristic smell, rather annoying ammonia that emerges during the process.

In addition, the amount of ammonia released requires the use of higher levels than necessary to compensate for this loss. This is not without consequences for the user who remains not only bothered by the smell but may also be faced with greater risks of intolerance, such as irritation of the scalp resulting in particular tingling. As for the option of purely and simply replacing all or part of the ammonia with one or more other conventional alkalizing agents, this does not lead to compositions as effective as those based on ammonia, in particular because these alkalinizing agents do not provide sufficient lightening of the pigmented fibers in the presence of the oxidizing agent. Thus, one of the objectives of the present invention is to propose coloring processes carried out in the presence of an oxidizing agent which do not have the disadvantages of the existing processes, due to the presence of high levels of ammonia, while remaining at least as effective, both in terms of the power of the coloration obtained, the chromaticity, the homogeneity of the color along the fiber.

These and other objects are achieved by the present invention which therefore relates to a method for dyeing keratinous fibers, in particular human keratin fibers such as the hair, in the presence of an oxidizing agent in which is applied to said fibers (a) an anhydrous cosmetic composition (A) comprising one or more fatty substances and one or more surfactants; (b) a cosmetic composition (B) comprising one or more oxidation dyes and / or a plurality of direct dyes and one or more organic amine salts whose pKb is less than 12 at 25 ° C; (c) a composition (C) comprising one or more oxidizing agents. In particular, the method according to the invention leads to powerful and unspecific coloring, that is to say, colorations that are homogeneous along the fiber. Moreover, the process according to the invention makes it possible to produce compositions which do not emit an aggressive odor when they are applied to the hair or during their preparation.

The present invention also relates to a multi-compartment device comprising in a first compartment an anhydrous cosmetic composition (A), in a second compartment, a cosmetic composition (B) comprising one or more oxidation dyes and / or one or more direct dyes and one or more salts of organic amines whose pKb is less than 12 at 25 ° C and, in a third compartment, a composition (C) comprising one or more oxidizing agents. A final subject of the invention consists of an anhydrous composition comprising one or more fatty substances, one or more surfactants, one or more oxidation dyes and / or one or more direct dyes and one or more amine salts. organic compounds whose pKb is less than 12 at 25 ° C.

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 human keratinous fibers treated by the process according to the invention are preferably the hair. As indicated above, the dyeing process is carried out in the presence of an anhydrous cosmetic composition (A).

More particularly, the term "anhydrous cosmetic composition" in the meaning of the invention is intended to mean a cosmetic composition having a water content of less than 5% by weight, preferably less than 2% by weight and even more preferably less than 1% by weight. % by weight relative to the weight of said composition. It should be noted that it is more particularly bound water, such as the water of crystallization of the salts or traces of water absorbed by the raw materials used in the production of the compositions according to the invention. As has been mentioned, the anhydrous cosmetic composition (A) comprises one or more fatty substances. The term "fatty substance" means an organic compound which is insoluble in water at ordinary room temperature (25 ° C.) and at atmospheric pressure (760 mmHg) (solubility less than 5% and preferably greater than 1%, more preferably at 0.1%). They have in their structure at least one hydrocarbon 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, ethanol, benzene, petroleum jelly or decamethylcyclopentasiloxane. The fatty substances are in particular chosen from C 6 -C 16 lower alkanes, animal, vegetable, mineral or synthetic non-silicone oils, fatty alcohols, fatty acids, fatty acid esters and / or fatty alcohol esters, non-silicone waxes and silicones. It is recalled that for the purposes of the invention, the alcohols, esters and fatty acids more particularly have one or more linear or branched hydrocarbon groups, saturated or unsaturated, comprising 6 to 30 carbon atoms, which are optionally substituted, in particular by one or more hydroxyl groups (in particular 1 to 4). If unsaturated, these compounds may comprise one to three carbon-carbon double bonds, conjugated or otherwise. As regards the C6-C16 lower alkanes, the latter are linear or branched, possibly cyclic. For example, the alkanes may be chosen from hexane and dodecane, isoparaffins such as isohexadecane and isodecane.

Non-silicone oils that can be used in the composition of the invention include, for example: hydrocarbon-based oils of animal origin, such as perhydrosqualene; triglycerides of vegetable or synthetic origin, such as liquid triglycerides of fatty acids containing from 6 to 30 carbon atoms, for instance triglycerides of heptanoic or octanoic acids, or else, for example, sunflower, corn or soybean oils. , squash, grape seed, sesame, hazelnut, apricot, macadamia, arara, sunflower, castor oil, avocado, triglycerides of caprylic / capric acids such as those sold by the company Stearineries Dubois or those sold under the names Miglyol 810, 812 and 818 by the company Dynamit Nobel, jojoba oil, shea butter oil; linear or branched hydrocarbons, of mineral or synthetic origin, of more than 16 carbon atoms, such as paraffin oils, volatile or not, and their derivatives, petroleum jelly, vaseline oil, polydecenes, hydrogenated polyisobutene such as Parleam®. partially fluorinated fluorinated oils; as fluorinated oils, mention may also be made of perfluoromethylcyclopentane and perfluoro-1,3-dimethylcyclohexane, sold under the names "FLUTEC PC 1" 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 fatty alcohols that can be used in the anhydrous cosmetic composition (A) are saturated or unsaturated, linear or branched, and contain from 6 to 30 carbon atoms and more particularly from 8 to 30 carbon atoms. There may be mentioned, for example, cetyl alcohol, stearyl alcohol and their mixture (cetylstearyl alcohol), octyldodecanol, 2-butyloctanol, 2-hexyldecanol, 2-undecylpentadecanol, oleic alcohol or linoleic alcohol. . The wax or waxes that may be used in the anhydrous cosmetic composition (A) are chosen in particular from carnauba wax, candelilla wax, and alfa wax, paraffin wax, ozokerite, vegetable waxes such as olive wax, rice wax, hydrogenated jojoba wax or absolute waxes of flowers such as the essential wax of blackcurrant flower sold by the company BERTIN (France), animal waxes such as waxes bees, or modified beeswaxes (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 fatty acids that may be used in the anhydrous cosmetic composition (A) may be saturated or unsaturated and contain from 6 to 30 carbon atoms, in particular from 9 to 30 carbon atoms. They are chosen more particularly from myristic acid, palmitic acid, stearic acid, behenic acid, oleic acid, linoleic acid, linolenic acid and isostearic acid. With regard to the fatty acid esters and / or fatty alcohols, advantageously different from the triglycerides mentioned above, mention may be made in particular of esters of saturated or unsaturated, linear or branched C 1 -C 26 aliphatic mono- or polyacids and of saturated or unsaturated, linear or branched C 1 -C 26 aliphatic mono- or polyalcohols, the total number of carbon of the esters being more particularly greater than or equal to 10. The esters, preferably different from the triglycerides mentioned above, are the esters of saturated or unsaturated, linear or branched C1-C26 aliphatic or polyhydric aliphatic monofunctional or linear or branched C 1 -C 26 saturated or unsaturated aliphatic or monohydric alcohols, the total number of carbon esters being greater than or equal to 10. Among the monoesters mention may be made of dihydroabiethyl behenate; octyldodecyl behenate; isoketyl behenate; cetyl lactate; C12-C1 5 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 isononate; octyl palmitate; octyl pelargonate; octyl stearate; octyldodecyl erucate; oleyl erucate; ethyl and isopropyl palmitates, 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 in the context 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 di, tri, alcohols. C2-C26 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 diisanonate; 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 isononanate, cetyl octanoate. The 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 the term "sugar" means 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 alkylated, such as methylated 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 C 6 -C 30, preferably C 1 -C 22 fatty acids, linear or branched, saturated 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 palmito-stearate esters. More particularly, the mono- and di-esters are used, and especially the 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% di-, tri- and tetraester, 45% monoester and 55% di-, tri- and tetraester, 39% monoester and 61% di-, tri- and tetraester , 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-di-palmito-stearate marketed by Goldschmidt under the name Tegosoft PSE. The silicones that can be used in the anhydrous cosmetic composition (A) of the present invention are volatile or cyclic, linear or branched, volatile or non-organic group-modified silicones having a viscosity of 5 × 10 -6 to 2.5 m 2 / s at 25 ° 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, in particular polydimethylsiloxanes (PDMS), and organomodified polysiloxanes comprising at least one functional group chosen from poly (oxyalkylene) groups, 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, which may also be mentioned: cyclocopolymers of the dimethylsiloxane / methylalkylsiloxane type, such as the VOLATILE SILICONE FZ 3109 marketed by UNION CARBIDE, of the formula: ## STR5 ## Examples of these are cyclic polydialkylsiloxane mixtures with silicon-derived organic compounds, such as the mixture of octamethylcyclotetrasiloxane and tetramethylsilylpentaerythritol (50/50) and the mixture of octamethylcyclotetrasiloxane 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 of less than or equal to 5.10-6m2 / s at 25 ° C. It is, for example, decamethyltetrasiloxane marketed in particular under the name "SH 200 "by TORAY SILICONE company. Silicones included in this class are also described in the 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 ASTM 445 Appendix C.

Among these polydialkylsiloxanes, mention may be made, without limitation, of the following commercial products: SILBIONE oils of series 47 and 70,047 or MIRASIL oils marketed by RHODIA, such as, for example, 70,047 V 500,000 oil; 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 an end-hydroxylated polydimethylsiloxane, or dimethiconol (CTFA) and a cyclic polydimethylsiloxane also called cyclomethicone (CTFA) such that the product Q2 1401 marketed by the company 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 used in accordance with the invention are crosslinked siloxane systems containing the units: R 2 SiO 2 12, R 3 SiO 11, RSiO 3 Si and SiO 2 O in which 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 marketed 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 Shinetsu. 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, especially polydiphenylsiloxanes, and polyalkylarylsiloxanes functionalized with the organofunctional groups mentioned above. The polyalkylarylsiloxanes are especially chosen from polydimethyl / methylphenylsiloxanes, linear and / or branched polydimethyl / diphenylsiloxanes with 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 series oils from RHODIA; - DOW CORNING 556 COSMETIC GRAD FLUID oil from Dow Corning; the silicones of the PK series of BAYER, such as the product PK20; the silicones of the PN and PH series of BAYER, such as the PN 1000 and PH 1000 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: polyethyleneoxy and / or polypropyleneoxy groups optionally comprising C 6 -C 24 alkyl groups such as the products called dimethicone copolyol marketed by the company Dow Corning under the name DC 1248 or the oils SILWET L 722, L 7500, L 77, L 711 of UNION CARBIDE and the alkyl (C 12) -methicone copolyol marketed by the company Dow Corning under the name Q2 5200; substituted or unsubstituted amine 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 the company Dow Corning. The substituted amino groups are, in particular, C1-C4 aminoalkyl groups; alkoxylated groups, such as the product marketed under the name "Silicone Copolymer F-755" by SWS Silicones and Abil Wax 2428, 2434 and 2440 by the company GOLDSCHMIDT. Preferably, the fatty substances do not comprise an oxyalkylenated C2-C3 unit or a glycerolated unit. More particularly, the fatty substances are chosen from liquid or pasty compounds at ambient temperature and at atmospheric pressure. The fatty substances are preferably chosen from C 6 -C 16 lower alkanes, mineral, vegetable or synthetic non-silicic oils, fatty alcohols, fatty acid esters and / or fatty alcohol esters and silicones.

Preferably, the fatty substance or fats is or are chosen from liquid petroleum jelly, polydecenes, esters of fatty acids and / or fatty alcohols, liquids or mixtures thereof. The anhydrous cosmetic composition (A) has a fat content advantageously between 10 and 99% by weight, preferably between 20 and 90% by weight, and even more particularly between 25 and 80% by weight, relative to the weight of the anhydrous composition (A). The anhydrous cosmetic composition (A) also comprises one or more surfactants.

More particularly, the surfactant or surfactants are chosen from nonionic surfactants or from anionic surfactants. The anionic surfactants are more especially chosen from salts (in particular alkali metal salts, in particular sodium salts, ammonium salts or alkaline earth metal salts, such as magnesium), of the following compounds: alkyl sulphates, alkyl ether sulphates, alkyl amido ether sulphates, alkylaryl polyethersulfates, monoglycerides sulfates; alkylsulphonates, alkylamidesulfonates, alkylarylsulphonates, α-olefin-sulphonates, paraffin-sulphonates; alkylphosphates, alkyl ether phosphates; alkylsulfosuccinates, alkylethersulfosuccinates, alkylamide-sulfosuccinates; alkylsulfosuccinamates; alkylsulfoacetates; acylsarcosinates; acylisethionates and N-acyltaurates; salts of fatty acids such as oleic, ricinoleic, palmitic or stearic acids, coconut oil acid or hydrogenated coconut oil acid; salts of alkyl D galactoside uronic acids; acyl lactylates; salts of polyoxyalkylenated alkyl ether carboxylic acids, polyoxyalkylenated alkylarylether carboxylic acids, polyoxyalkylenated alkylamidoether carboxylic acids, in particular those containing from 2 to 50 ethylene oxide groups; - and their mixtures. It should be noted that the alkyl or acyl radical of these various compounds advantageously comprises from 6 to 24 carbon atoms, and preferably from 8 to 24 carbon atoms, and the aryl radical preferably denotes a phenyl or benzyl group. The nonionic surfactants are more particularly chosen from mono or polyoxyalkylenated, mono- or polyglycerolated nonionic surfactants. The oxyalkylenated units are more particularly oxyethylenated units, oxypropylene, or their combination, preferably oxyethylenated. As examples of oxyalkylenated nonionic surfactants, mention may be made of: oxyalkylenated (C 5 -C 24) alkyl phenols, saturated or unsaturated, linear or branched, oxyalkylenated C 8 -C 30 alcohols, C 8 amides, -C30, saturated or unsaturated, linear or branched, oxyalkylenated, • esters of C8-C30 acids, saturated or unsaturated, linear or branched, and of polyethylene glycols, • esters of C8-C30 acids, saturated or unsaturated polyoxyethylenated linear or branched, and sorbitol, • oxyethylenated vegetable oils, saturated or not, • condensates of ethylene oxide and / or propylene oxide, among others, • or mixtures thereof. Preferably, the surfactants have a number of moles of ethylene oxide and / or propylene of between 1 and 100, preferably between 2 and 50. Advantageously, the nonionic surfactants do not comprise oxypropylene units. According to a preferred embodiment of the invention, the oxyalkylenated nonionic surfactants are chosen from C 8 -C 30 alcohols, oxyethylenated, linear or branched, saturated or unsaturated C 8 -C 30 acid esters, and sorbitol polyoxyethylenated. As an example of mono- or polyglycerolated nonionic surfactants, the C 8 -C 40 alcohols, mono- or polyglycerolated, are preferably used.

In particular, mono- or poly-glycerolated C 8 -C 40 alcohols correspond to the following formula: ## STR2 ## in which R represents a linear or branched C 8 -C 8 alkyl or alkenyl radical; -C40, preferably C8-C30, and m represents a number ranging from 1 to 30 and preferably from 1 to 10. By way of example of compounds that are suitable in the context of the invention, mention may be made of lauryl alcohol with 4 moles of glycerol (INCI name: POLYGLYCERYL-4 LAURYL ETHER), lauric alcohol with 1.5 moles of glycerol, oleic alcohol 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, cetearyl alcohol with 6 moles of glycerol, oleocetyl alcohol with 6 moles of glycerol, and octadecanol with 6 moles of glycerol. The alcohol can be a mixture of alcohols in the same way that the value of m represents a statistical value, which means that in a commercial product several species of polyglycerolated fatty alcohols can coexist as a mixture.

Among the mono- or poly-glycerolated alcohols, it is more particularly preferred to use the C8 / C10 alcohol with one mole of glycerol, the C10 / C12 alcohol with 1 mole of glycerol and the C12 alcohol with 1.5 mole of glycerol. Preferably, the surfactant present in the anhydrous composition is a nonionic surfactant. The content of surfactants in the anhydrous composition (A) more particularly represents from 0.1 to 50% by weight, preferably from 0.5 to 30% by weight relative to the weight of the anhydrous composition.

The anhydrous composition (A) may also contain various adjuvants conventionally used in hair dyeing compositions, such as anionic, cationic, nonionic, amphoteric or zwitterionic polymers or mixtures thereof; mineral thickeners, and in particular fillers such as clays, talc; organic thickeners, with in particular the anionic, cationic, nonionic and amphoteric polymeric associative thickeners different from the polymers mentioned above; antioxidants; penetrants; sequestering agents; perfumes ; dispersants; film-forming agents; ceramides; preservatives; opacifying agents. 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 composition (A). According to an advantageous variant of the invention, the anhydrous composition (A) comprises one or more inorganic thickening agents chosen from organophilic clays, pyrogenic silicas, or mixtures thereof.

The organophilic clay may be selected from montmorrilonite, bentonite, hectorite, attapulgite, sepiolite, and mixtures thereof. The clay is preferably a bentonite or a hectorite. These clays can be modified with a chemical compound chosen from quaternary amines, tertiary amines, amino acetates, imidazolines, amine soaps, fatty sulphates, alkyl aryl sulphonates, amine oxides, and mixtures thereof. As organophilic clays, mention may be made of quaternium-18 bentonites such as those sold under the names Bentone 3, Bentone 38, Bentone 38V by Rheox, Tixogel VP by United catalyst, Claytone 34, Claytone 40, Claytone XL by Southern Clay Company; stearalkonium bentonites such as those sold under the names Bentone 27 by Rheox, Tixogel LG by United Catalyst, Claytone AF, Claytone APA by Southern Clay; quaternium-18 / benzalkonium bentonite such as those sold under the names Claytone HT, Claytone PS by Southern Clay, Quaternium-18 Hectorites such as those sold under the names Bentone Gel DOA, Bentone Gel ECO5, Bentone Gel EUG, Bentone IPP Gel, Bentone Gel ISD, Bentone Gel SS71, Bentone Gel VS8, Bentone Gel VS38 by Rhéox and Simagel M, Simagel SI 345 by Biophil. The fumed silicas can be obtained by high temperature hydrolysis of a volatile silicon compound in an oxyhydrogen flame, producing a finely divided silica. This process makes it possible in particular to obtain hydrophilic silicas which have a large number of silanol groups on their surface. Such hydrophilic silicas are, for example, sold under the names "AEROSIL 130", "AEROSIL 200", "AEROSIL 255", "AEROSIL 300", "AEROSIL 380" by the company Degussa, "CAB-O-SIL HS-5" , "CAB-O-SIL EH-5", "CAB-O-SIL LM-130", "CAB-O-SIL MS-55", "CAB-O-SIL M-5" by Cabot. It is possible to chemically modify the surface of the silica by chemical reaction in order to reduce the number of silanol groups. In particular, it is possible to substitute silanol groups with hydrophobic groups: a hydrophobic silica is then obtained. The hydrophobic groups may be: trimethylsiloxyl groups, which are especially obtained by treatment of fumed silica in the presence of hexamethyldisilazane. Silicas thus treated are called "silica silylate" according to the CTFA (6th edition, 1995). They are for example marketed under the references "AEROSIL R812" by the company Degussa, "CAB-O-SIL TS-530" by the company Cabot. - Dimethylsilyloxyl or polydimethylsiloxane groups, which are obtained in particular by treatment of fumed silica in the presence of polydimethylsiloxane or dimethyldichlorosilane. Silicas thus treated are known as "Silica dimethyl silylate" according to the CTFA (6th edition, 1995). They are for example sold under the references "AEROSIL R972", "AEROSIL R974" by the company Degussa, "CAB-O-SIL TS-610", "CAB-O-SIL TS-720" by Cabot.

The fumed silica preferably has a particle size that may be nanometric to micrometric, for example ranging from about 5 to 200 nm. Preferably, the composition comprises a hectorite, an organomodified bentonite or an optionally modified pyrogenic silica. When present, the mineral thickening agent represents from 1 to 30% by weight relative to the weight of the composition. Advantageously, the composition is in the form of a gel or a cream. The process according to the invention is carried out in the presence of a cosmetic composition (B) comprising one or more oxidation dyes and / or one or more direct dyes. The oxidation dyes are generally chosen from oxidation bases optionally combined with one or more couplers. 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 para-phenylenediamines, 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 paraphenylenediamine, 2,5-dimethyl-para-phenylenediamine, N, N-dimethyl-para-phenylenediamine, N, N-diethyl-para-phenylenediamine, N, N-dipropyl-para-phenylenediamine, 4-amino-N, N-diethyl-3-methylaniline, N, N- bis - ((3-hydroxyethyl) paraphenylenediamine, 4-N, N-bis - ((3-hydroxyethyl) amino-2-methylaniline, 4-N, N-bis-3-hydroxyethyl) amino-2-chloroaniline, 2-hydroxy-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, β-hydroxyethyl) paraphenylenediamine, N-03,7-dihydroxypropyl) pa triphenylenediamine, N- (4'-aminophenyl) paraphenylenediamine, N-phenyl paraphenylenediamine, 2- (3-hydroxyethyloxy) paraphenylenediamine, 2- (3-acetylaminoethyloxy) paraphenylenediamine, N- (3-methoxyethyl) paraphenylene diamine, 4-aminophenylpyrrolidine, 2-thienyl paraphenylenediamine, 2- (3-hydroxyethylamino-5-amino-toluene, 3-hydroxy-1- (4'-aminophenyl) pyrrolidine and their addition salts with an acid. Of the paraphenylenediamines mentioned above, paraphenylenediamine, paratoluylenediamine, 2-isopropyl paraphenylenediamine, 2-β-hydroxyethyl paraphenylenediamine, 2-β-hydroxyethyloxy paraphenylenediamine, 2,6-dimethyl paraphenylenediamine, 2,6 ethyl paraphenylenediamine, 2,3-dimethyl paraphenylenediamine, N, N-bis- (β-hydroxyethyl) paraphenylenediamine, 2-chloro-para-phenylenediamine, 2-β-acetylaminoethyloxy-para-phenylenediamine, and their addition salts with an acid are particularly preferred.

Among the bis-phenylalkylenediamines, N, N'-bis- (3-hydroxyethyl) N, N'-bis- (4'-aminophenyl) -1,3-diaminopropanol, N, may be mentioned by way of example. N, N'-bis- (3-hydroxyethyl) N, N'-bis- (4'-aminophenyl) ethylenediamine, N, N'-bis- (4-aminophenyl) tetramethylenediamine, N, N'-bis- ( 13-hydroxyethyl) N, N'-bis- (4-aminophenyl) tetramethylenediamine, N, N'-bis (4-methylaminophenyl) tetramethylenediamine, 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-hydroxymethyl phenol, 4-amino-2-methylphenol, 4-amino-2-hydroxymethylphenol, 4-amino-2-methoxymethylphenol, 4-amino-2-aminomethylphenol, 4-amino-2 - ( 3-hydroxyethylaminomethyl) 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-5-methyl phenol, 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, pyridine derivatives, Pyrimidine derivatives and 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-diaminopyridine, 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-aminopyrazolo [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-diamino-pyrazolo [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, 2 , 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-yl-hydroxyethyl) pyrazole, 3,4-diamino pyrazole, 4,5-diamino-1- (4'-chlorobenzyl) pyrazole, diamino 1,3-dimethyl 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-yl-hydroxyethyl) 3-methyl pyrazole, 4,5-diamino-1-ethyl-3-methyl pyrazole, 4,5-diamino-1-ethyl-3- methoxyphenyl) pyrazole, 4,5-diamino-1-ethyl-3-hydroxymethyl pyrazole, 4,5-diamino-3-hydroxymethyl-1-methyl-pyrazole, 4,5-diamino-3-hydroxymethyl-1-isopropyl pyrazole, 4,5 3-methyl-1-isopropyl pyrazole, 4-amino-5- (2'-aminoethyl) amino-1,3-dimethyl pyrazole, 3,4,5-triamino pyrazole, 1-methyl-3,4,5-trifluoromethyl pyrazole, triamin 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- (13-hydroxyethyl) pyrazole and / or one of its salts will be used. 4,5-diamino-3-methyl-1-phenyl pyrazole, 4,5-diamino-1-methyl-3-phenyl-pyrazole, 4-amino-1,3-dimethyl-5-hydrazino pyrazole, as pyrazole derivatives, can be also mentioned diamino N, N-dihydropyrazolopyrazolones and in particular those described in application FR-A-2,886,136 such as the following compounds and their addition salts: 2,3-diamino-6,7-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 diethyl 1,2-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-dimethylamino-6,7-dihydro-1H, 5H pyrazolo [1,2-a] pyrazol-1-one, 2,3-diamino-5,6,7,8-tet Trahydro-1H, 6H-pyridazino [1,2-a] pyrazol-1-one, 4-amino-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 will be 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-β-hydroxyethyl) pyrazole and / or 2,3-diamino-6,7-dihydro-1H, 5H-pyrazolo [1,2-dihydro-1-yl] are preferably used. a] pyrazol-1-one and / or a salt thereof. The cosmetic composition (B) according to the invention may optionally comprise one or more couplers advantageously chosen from those conventionally used for dyeing keratinous fibers. Among these couplers, there may be mentioned meta-phenylenediamines, meta-aminophenols, meta-diphenols, naphthalenic couplers, heterocyclic couplers and their addition salts. By way of example, mention may be made of 1,3-dihydroxybenzene, 1,3-dihydroxy-2-methylbenzene, 4-chloro-1,3-dihydroxybenzene and 2,4-diamino-1- (B- hydroxyethyloxy) benzene, 2-amino 4- (B-hydroxyethylamino) 1-methoxybenzene, 1,3-diamino benzene, 1,3-bis- (2,4-diaminophenoxy) propane, 3-ureido aniline, 3-ureido-1-dimethylamino benzene, sesamol, 1-13-hydroxyethylamino-3,4-methylenedioxybenzene, α-naphthol, 2-methyl-1-naphthol, 6-hydroxyindole, 4-hydroxyindole, 4-hydroxy N-methylindole, 2-amino-3-hydroxypyridine, 6-hydroxybenzomorpholine 3,5-diamino-2,6-dimethoxypyridine, 1-N- (13-hydroxyethyl) amino-3 , 4-methylene dioxybenzene, 2,6-bis- (β-hydroxyethylamino) toluene, 6-hydroxy indoline, 2,6-dihydroxy-4-methyl pyridine, 1-H-methyl pyrazole 5-one, 1-phenyl-3-methyl pyrazole-5-one, 2,6-dimethyl pyrazolo [1,5-b] -1,2,4-triazole, 2,6-dimethyl [3,2-c] -1, 2,4-triazole, 6-methyl pyrazolo [ 1,5-a] benzimidazole, their addition salts with an acid, and mixtures thereof. In general, the addition salts of the oxidation bases and couplers that can be used in the context of the invention are chosen especially from the addition salts with an acid such as hydrochlorides, hydrobromides, sulphates, citrates, succinates, tartrates, lactates, tosylates, benzenesulfonates, phosphates and acetates.

The oxidation base (s) each advantageously represent 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 composition. The content of the coupler (s), if they are (are) present, is each advantageously 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 cosmetic composition (B). As regards the direct dyes, the latter are more particularly chosen from ionic or nonionic species, preferably cationic or nonionic species. As examples of suitable direct dyes, 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. More particularly, the azo dyes comprise a function -N = N-, the two nitrogen atoms of which are not simultaneously engaged in a ring. However, it is not excluded that one of the two nitrogen atoms of the sequence -N = N- is engaged in a cycle. The dyes of the family of methines are more particularly compounds comprising at least one sequence chosen from> C = C <and -N = C <whose two atoms are not simultaneously engaged in a ring. It is however specified that one of the nitrogen or carbon atoms of the chains can be engaged in a cycle. More particularly, the dyes of this family are derived from methine, azomethine, mono- and di-arylmethane compounds, indoamines (or diphenylamines), indophenols, indoanilines, carbocyanines, azacabocyanines and their isomers, diazacarbocyanines and their isomers, tetraazacarbocyanines, In the case of dyes of the carbonyl group, mention may be made, for example, of the dyes chosen from acridone, benzoquinone, anthraquinone, naphthoquinone, benzanthrone, anthranthrone, pyranthrone, pyrazolanthrone, pyrimidinoanthrone, flavanthrone, idanthrone, flavone, (iso) violanthrone, isoindolinone, benzimidazolone, isoquinolinone, anthrapyridone, pyrazoloquinazolone, perinone, quinacridone, quinophthalone, indigo, thioindigo, naphthalimide, anthrapyrimidine, diketopyrrolopyrrole, coumarin. As regards the dyes of the family of cyclic azines, mention may be made in particular of azine, xanthene, thioxanthene, fluorindine, acridine, (di) oxazine, (di) thiazine and pyronine. The nitro (hetero) aromatic dyes are more particularly nitrobenzene or nitro pyridinic direct dyes.

With regard to porphyrin or phthalocyanine dyes, it is possible to use cationic or non-cationic compounds, optionally comprising one or more metals or metal ions, for example alkali and alkaline earth metals, zinc and silicon. 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.

These dyes may be monochromophoric dyes (that is to say comprising only one dye) or polychromophoric, preferably di- or tri-chromophoric dyes; the chromophores which may be identical or different, of the same chemical family or not. It should be noted that a polychromophoric dye comprises several radicals each derived from an absorbing molecule in the visible range between 400 and 800 nm. In addition, this absorbance of the dye does not require any prior oxidation thereof, or association with other (s) species (s) chemical (s). In the case of polychromophoric dyes, the chromophores are connected to each other by means of at least one linker which may or may not be cationic. Preferably, the linker is a linear, branched or cyclic C1-C20 alkyl chain, optionally interrupted by at least one heteroatom (such as nitrogen, oxygen) and / or by at least one group comprising (CO, SO2), optionally interrupted by at least one heterocycle condensed or not with a phenyl ring and comprising at least one quaternized nitrogen atom engaged in said ring and optionally at least one other heteroatom (such as oxygen, nitrogen or sulfur), optionally interrupted by at least one unsubstituted or substituted phenyl or naphthyl group, optionally at least one quaternary ammonium group substituted by two optionally substituted C1-C5 alkyl groups; the linking arm does not comprise a nitro, nitroso or peroxo group. If the heterocycles or aromatic rings are substituted, they are substituted for example by one or more C 1 -C 8 alkyl radicals optionally substituted with a hydroxyl, C 1 -C 2 alkoxy, C 2 -C 4 hydroxyalkoxy, acetylamino or amino group substituted by one or more groups. two C 1 -C 4 alkyl radicals, optionally bearing at least one hydroxyl group or both radicals which can form, with the nitrogen atom to which they are attached, a 5- or 6-membered heterocycle, optionally comprising another identical heteroatom or different from nitrogen; a halogen atom; a hydroxyl group; a C1-C2 alkoxy radical; a C2-C4 hydroxyalkoxy radical; an amino radical; an amino radical substituted with one or two identical or different C 1 -C 4 alkyl radicals optionally bearing at least one hydroxyl group. Among the benzene direct dyes that may be used according to the invention, the following compounds may be mentioned in a nonlimiting manner: 1,4-diamino-2-nitrobenzene, 1-amino-2-nitro-4-13-hydroxyethylaminobenzene-1-amino -2-Nitro-4-bis ((3-hydroxyethyl) -aminobenzene -1,4-bis (3-hydroxyethylamino) -2-nitrobenzene-1-B-hydroxyethylamino-2-nitro-4-bis (3-hydroxyethylamino) ) -1-13-Hydroxyethylamino-2-nitro-4-aminobenzene -1- (3-hydroxyethylamino-2-nitro-4- (ethyl) (13-hydroxyethyl) -aminobenzene -1-amino-3-methyl-benzene 4- (3-Hydroxyethylamino-6-nitrobenzene-1-amino-2-nitro-4- (3-hydroxyethylamino) -5-chlorobenzene-1,2-diamino-4-nitrobenzene-1-amino-2- (3-hydroxyethyl) amino 5-nitrobenzene-1,2-bis- (13-hydroxyethylamino) -4-nitrobenzene-1-amino-2-tris- (hydroxymethyl) -methylamino-5-nitrobenzene -1-hydroxy-2-amino-5-nitrobenzene - 1-Hydroxy-2-amino-4-nitrobenzene -1-Hydroxy-3-nitro-4-aminobenzene -1-Hydroxy-2-amino-4,6-dinitrobenzene -1- (3-hydroxyethyloxy) -2- (3-Hydroxyethylamino-5-nitrobenzene -1-methoxy-2- (3-hydroxyethylamino-5-nitrobenzene-1- (3-hydroxyethyloxy-3-methylamino-4-nitrobenzene -1- (3-yl) dihydroxypropyloxy) -2- 3-methylamino-4-nitrobenzene-1- (3-hydroxyethylamino-4- (3,7-dihydroxypropyloxy-2-nitrobenzene-1- (3-yl) dihydroxypropylamino-4-trifluoromethyl-2-nitrobenzene -1- 4-hydroxyethylamino-4-trifluoromethyl-2-nitrobenzene -1- (3-hydroxyethylamino-3-methyl-2-nitrobenzene) -1- (3-aminoethylamino-5-methoxy-2-nitrobenzene-1-hydroxy-2-chloro-6 4-ethylamino-4-nitrobenzene -1-hydroxy-2-chloro-6-amino-4-nitrobenzene-1-hydroxy-6-bis-((3-hydroxyethyl) -amino-3-nitrobenzene -1-β-hydroxyethylamino) 2-nitrobenzene -1-hydroxy-4-13-hydroxyethylamino-3-nitrobenzene.

Among the azo, azomethine, methine or tetraazapentamethine direct dyes that may be used according to the invention, mention may be made of the cationic dyes described in patent applications WO 95/15144, WO 95/01772 and EP 714954; FR 2189006, FR 2285851, FR-2140205, EP 1378544, EP 1674073. Thus, the following dyestuffs of formulas (I) to (IV), and preferably the compounds of formulas (I) and (III), may be mentioned in particular. :

(1) in which:

D represents a nitrogen atom or the group -CH,

R1 and R2, identical or different, represent a hydrogen atom; a C 1 -C 4 alkyl radical which may be substituted by a -CN, -OH or -NH 2 radical or form, with a carbon atom of the benzene ring, an optionally oxygenated or nitrogen-containing heterocycle, which may be substituted by one or more C1-C4 alkyl radicals; C4; a 4'-aminophenyl radical,

R3 and R'3, which may be identical or different, represent a hydrogen or halogen atom chosen from chlorine, bromine, iodine and fluorine, a cyano, a C1-C4 alkyl or a C1-C4 alkoxy radical; or acetyloxy,

X - represents an anion preferably chosen from chloride, methyl sulfate and acetate, A represents a group chosen from structures Al to A18, preferably Al, A4, A7, A13 and A18, as follows: Ri N +, + N R4 R4

A2 A3 A4 A8 R4 / N = N + R4 NN + R4 A9 R4 R4 R, 4 N-N + R4 Am Ai, A, 2 RR a / 4 / N + NI N + s A13 A14 A15 R4 Ra Ra R / R / aN N + a ~ N + /% N, SN, S N + Ra A16 An A1s in which R4 represents a C1-C4 alkyl radical which may be substituted by a hydroxyl radical and R5 represents a C1-C4 alkoxy radical; R6 B-N = N N, (II) / R9 in which:

R6 represents a hydrogen atom or a C1-10 C4 alkyl radical,

R7 represents a hydrogen atom, an alkyl radical which may be substituted by a radical -CN or by an amino group, a 4'-aminophenyl radical or forms with R6 an optionally oxygenated and / or nitrogenous heterocycle which may be substituted by a radical C1-C4 alkyl,

R8 and R9, which may be identical or different, represent a hydrogen atom, a halogen atom such as bromine, chlorine, iodine or fluorine, a C1-C4 alkyl radical or a C1-C4 alkoxy radical; radical - CN,

X - represents an anion preferably selected from chloride, methyl sulfate and acetate,

B represents a group chosen from the following structures B1 to B6: Rio1-Rio, Rio N + N N + S, Ri B1 B2 N N + R1, RiN, Rn B3 Rio B4 B5 B6 in which Rlo represents a C1-C4 alkyl radical R 11 and R 12, which may be identical or different, represent a hydrogen atom or a C 1 -C 4 alkyl radical; (III) in which: R13 represents a hydrogen atom, a C1-C4 alkoxy radical, a halogen atom such as bromine, chlorine, iodine or fluorine, R14 represents a hydrogen atom; , a C 1 -C 4 alkyl radical or form with a carbon atom of the benzene ring a heterocycle optionally oxygenated and / or substituted with one or more C 1 -C 4 alkyl groups, R 15 represents a hydrogen or halogen atom such that bromine, chlorine, iodine or fluorine, R16 and R17, which are identical or different, represent a hydrogen atom or a C1-C4 alkyl radical, D1 and D2, which may be identical or different, represent a d nitrogen or the group -CH, m = 0 or 1, preferably 1, it being understood that when R13 represents an unsubstituted amino group, then DI and D2 simultaneously represent a -CH group and m = 0, X represents an anion preferably selected from chloride, methyl sulfate and acetate, E represents u n group chosen by the structures E1 to E8, more particularly E1, E2 and E7, as follows: ## STR1 ## and NR 'R' N + E6 E7 E8 in which R 'represents a C1-C4 alkyl radical; when m = 0 and D, represents a nitrogen atom, then E can also denote a group of the following structure E9: R 'E9 R' in which R 'represents a C1-C4 alkyl radical. GNNJ (IV) in which: the symbol G represents a group chosen from the following structures G1 to G3: wherein R18 denotes a C1-C4 alkyl radical, a phenyl radical which may be substituted; by a C1-C4 alkyl radical or a halogen atom chosen from chlorine, bromine, iodine and fluorine; R19 denotes a C1-C4 alkyl radical or a phenyl radical; R20 and R21, which may be identical or different, represent a C1-C4 alkyl radical or a phenyl radical, or together form in G1 a benzene ring substituted with one or more C1-C4 alkyl, C1-C4 alkoxy or NO2 radicals, or together form in G2 a benzene ring optionally substituted with one or more C1-C4 alkyl, C1-C4 alkoxy or NO2 radicals; R20 may further denote a hydrogen atom; Z is an oxygen atom, sulfur atom or a group - NR1 9; M represents a group -CH, -CR (R denoting C1-C4 alkyl), or -NR22 (X-) r; K represents a group -CH, -CR (R denoting C1-C4 alkyl), or -NR22 (X-) r; P represents a group -CH, -CR (R denoting C1-C4 alkyl), or -NR22 (X-) r; r is zero or 1; R22 represents an O atom, a C1-C4 alkoxy radical, or a C1-C4 alkyl radical; R23 and R2a, which may be identical or different, represent a hydrogen or halogen atom chosen from chlorine, bromine, iodine and fluorine, a C1-C4 alkyl radical or a C1-C4 alkoxy radical; NO2; X represents an anion preferably selected from chloride, iodide, methyl sulfate, ethyl sulfate, acetate and perchlorate; with the proviso that, if R22 is O, then r is zero; if K or P or M denote -N-alkyl C, -Ca X, then R 23 or R 24 is preferably different from a hydrogen atom; if K denotes -NR22 (X-) r, then M = P = -CH, -CR; if M denotes -NR22 (X-) r, then K = P = -CH, -CR; if P denotes -NR22 (X-) r, then K = M and denote -CH or -CR; if Z denotes a sulfur atom with R 21 denoting C1-C4 alkyl, then R20 is different from a hydrogen atom; if Z denotes -NR22 with R19 denoting C1-C4 alkyl, then at least one of the radicals R18, R20 or R21 of the group of structure G2 is different from an alkyl radical at C1-Ca;

The symbol J represents: - (a) a group of structure J, following: structure JI in which, R 25 represents a hydrogen atom, a halogen atom chosen from chlorine, bromine, iodine and fluorine, a C1-C4 alkyl radical, a C1-C8 alkoxy radical, a -OH, -NO2, -NHR28, -NR29R30, -NHCOalkyl radical, or form with R26 a 5- or 6-membered ring containing or not one or more heteroatoms selected from nitrogen, oxygen or sulfur; R 26 represents a hydrogen atom, a halogen atom chosen from chlorine, bromine, iodine and fluorine, a C 1 -C 4 alkyl radical and a C 1 -C 4 alkoxy radical;

or forms with R27 or R28 a 5- or 6-membered ring containing or not one or more heteroatoms selected from nitrogen, oxygen or sulfur;

R27 represents a hydrogen atom, a radical -OH, a

radical -NHR28, a radical -NR29R30;

R 28 represents a hydrogen atom, a C 1 -C 4 alkyl radical, a C 1 -C 4 monohydroxyalkyl radical or a C 2 -C 4 polyhydroxyalkyl radical, a phenyl radical;

R79 and R30, which may be identical or different, represent a C1-C4 alkyl radical, a C1-C4 monohydroxyalkyl radical or a C2-C4 polyhydroxyalkyl radical; (b) a 5- or 6-membered nitrogenous heterocyclic group capable of containing other heteroatoms and / or carbonyl groups and which may be substituted with one or more C 1 -C 4 alkyl, amino or phenyl radicals,

and in particular a grouping of structure J2 following

(Y-) ùN \ / JZ N \

O / Rat

J2 structure in which,

R31 and R32, which may be identical or different, represent a hydrogen atom, a C1-C4 alkyl radical or a phenyl radical; Y 3 Y denotes the radical -CO- or the radical c

N = 0 or 1, with, when n denotes 1, U denotes the radical - CO- In the structures (I) to (IV) defined above, the alkyl or (C 1 -C 4) alkoxy group preferably denotes methyl or ethyl. Among the compounds of formulas (I) and (III), the following compounds are preferred: ## STR1 ## ## STR1 ## CH3 NN = N X-CH3 ~ N / N = NN-K ') - NH3 XN + CH3 The following dyes, described in COLOR INDEX INTERNATIONAL 3rd edition: 15 - Disperse Red 17, may also be mentioned among the azo direct dyes - Basic Red 22 - Basic Red 76 - Basic Yellow 57 ~~ H3C-N + \ C = NN H CH3 H3C-N // CN -NHI CH3 X-OCH3 X-10 - Basic Brown 16 - Basic Brown 17 - Disperse Black 9 1- (4'-Aminodiphenylazo) -2-methyl-4bis- ((3-hydroxyethyl) aminobenzene may also be mentioned.) Among the quinone direct dyes, mention may be made of the following dyes: Disperse Red 15 Solvent Violet 13 Disperse Violet 1 - Disperse V iolet 4 - Disperse Blue 1 - Disperse Violet 8 - Disperse Blue 3 - Disperse Red 11 - Disperse Blue 7 - Basic Blue 22 - Disperse Violet 15 - Basic Blue 99 and the following compounds: -1-N-methylmorpholiniumpropylamino-4-hydroxy anthraquinone - 1-aminopropylamino-4-methylaminoanthraquinone-1-aminopropylaminoanthraquinone-5-13-hydroxyethyl-1,4-diaminoanthraquinone-2-aminoethylaminoanthraquinone-1,4-bis-((3-yl-dihydroxypropylamino) -anthraquinone. Among the azine dyes, mention may be made of the following compounds: - Basic Blue 17 - Basic Red 2. Among the triarylmethane dyes that can be used according to the invention, mention may be made of the following compounds: - Basic Green 1 - Basic Violet 3 - Basic Violet 14 Among the indoamine dyes that can be used according to the invention, mention may be made of the following compounds: 2- (3-hydroxyethylamino-5- [bis ((3-hydroxyethyl) amino] anilino -1,4-Benzoquinone-2- (3-hydroxyethylamino-5- (2'-methoxy-4'-amino) anilino-1,4-benzoquinone-3-N (2'-chloro-4'-hydroxy) phenyl) acetylamino-6-methoxy-1,4-benzoquinone imine-3-N (3'-chloro-4'-methylamino) phenyl-ureido-6-methyl-1,4-benzoquinone imine -3- [4'-N] - (Ethyl, carbamylmethyl) amino] -phenyl-ureido-6-methyl-1,4-benzoquinone imine Among the tetraazapentamethine type dyes that can be used according to the invention, mention may be made of the following compounds appearing in the table below. , Where An is defined as Previously: N 'NN NN ~ XIIXN% NX OMe NN OMe X OMe N + ~, NN ~ OMe NN NN NX N + ~ N ~ N ~ N \ NN OH X NN ~ NN .., OH ~ XI NN% NAN., IXI N is an anion preferably selected from chloride, iodide, methyl sulfate, ethyl sulfate, acetate and the like. perchlorate. Among the polychromophoric dyes, mention may be made more particularly of azo and / or azomethine (hydrazonic) di- or trichromophoric dyes, symmetrical or not, comprising on the one hand at least one aromatic heterocycle comprising 5 or 6 ring members, optionally fused, comprising at least one quaternized nitrogen atom engaged in said heterocycle and optionally at least one other heteroatom (such as nitrogen, sulfur, oxygen), and on the other hand, at least one phenyl or naphthyl group, optionally substituted, optionally bearing at least one OR group with R representing a hydrogen atom, an optionally substituted C1-C6 alkyl radical, an optionally substituted phenyl ring, or at least one N (R ') 2 group with R 'identical or not, representing a hydrogen atom, an optionally substituted alkyl radical C1-C6, an optionally substituted phenyl ring; the radicals R 'which can form, with the nitrogen atom to which they are bonded, a saturated 5- or 6-membered heterocycle, or else one and / or both radicals R' may each form with the carbon atom of the aromatic ring placed in ortho of the nitrogen atom, a 5- or 6-membered saturated heterocycle. As aromatic cationic heterocycle, there may be mentioned, preferably, 5- or 6-membered rings comprising 1 to 3 nitrogen atoms, preferably 1 or 2 nitrogen atoms, one being quaternized; said heterocycle being optionally further fused to a benzene ring. It should also be noted that the heterocycle may optionally comprise another heteroatom different from nitrogen, such as sulfur or oxygen.

If the heterocycles or phenyl or naphthyl groups are substituted, they are substituted with, for example, one or more C 1 -C 8 alkyl radicals optionally substituted by a hydroxyl, C 1 -C 2 alkoxy or C 2 -C 4 hydroxyalkoxy, acetylamino or substituted amino group. one or two C1-C4 alkyl radicals, optionally bearing at least one hydroxyl group or both radicals which can form, with the nitrogen atom to which they are attached, a 5- or 6-membered heterocycle, optionally comprising another heteroatom; identical or different from nitrogen; a halogen atom; a hydroxyl group; a C1-C2 alkoxy radical; a C2-C4 hydroxyalkoxy radical; an amino radical; an amino radical substituted with one or two identical or different C1-C4 alkyl radicals optionally bearing at least one hydroxyl group. These polychromophores are connected to one another by means of at least one linking arm optionally comprising at least one quaternized nitrogen atom, which may or may not be engaged in a saturated or unsaturated, optionally aromatic heterocycle. Preferably, the linker is a linear, branched or cyclic C1-C20 alkyl chain, optionally interrupted by at least one heteroatom (such as nitrogen, oxygen) and / or by at least one group comprising (CO, SO2), optionally interrupted by at least one heterocycle condensed or not with a phenyl ring and comprising at least one quaternized nitrogen atom engaged in said ring and optionally at least one other heteroatom (such as oxygen, nitrogen or sulfur), optionally interrupted by at least one unsubstituted or substituted phenyl or naphthyl group, optionally at least one quaternary ammonium group substituted by two optionally substituted C1-C15 alkyl groups; the linking arm does not comprise a nitro, nitroso or peroxo group.

The link between the linker and each chromophore is generally by means of a heteroatom which substitutes the phenyl or naphthyl ring or by means of the quaternized nitrogen atom of the cationic heterocycle.

The dye may comprise identical or different chromophores. By way of examples of such dyes, reference may especially be made to patent applications EP 1637566, EP 1619221, EP 1634926, EP 1619220, EP 1672033, EP 1671954, EP 1671955, EP 1679312, EP 1671951, EP167952, EP167971, WO 06/063866, WO 06/063867, WO 06/063868, WO 06/063869, EP 1408919, EP 1377264, EP 1377262, EP 1377261, EP 1377263, EP 1399425, EP 1399117, EP 1416909, EP 1399116, EP 1671560. can also also use cationic direct dyes cited in applications EP 1006153, which describes dyes comprising two anthraquinone chromophores connected by means of a cationic linker; EP 1433472, EP 1433474, EP 1433471 and EP 1433473 which describe identical or different dichromophoric dyes, connected by a cationic or non-cationic linking arm, as well as EP 6291333 which describes in particular dyes comprising three chromophores, one of them being an anthraquinone chromophore to which are connected two azo-type chromophores or diazacarbocyanine or one of its isomers. Among the natural direct dyes that may be used according to the invention, lawsone, juglone, alizarin, purpurine, carminic acid, kermesic acid, purpurogalline, protocatechaldehyde, indigo, isatin , curcumin, spinulosin, apigenidine, orceins. It is also possible to use the extracts or decoctions containing these natural dyes, and in particular poultices or extracts made from henna. When present, the direct dye (s) more particularly represent from 0.0001 to 10% by weight of the total weight of the composition, and preferably from 0.005 to 5% by weight.

The cosmetic composition (B) can include either type of dyes. It may optionally correspond to two coloring compositions, one comprising the oxidation dye (s) and the other, the direct dye (s).

The cosmetic composition (B) further comprises one or more salts of organic amines whose pKb at 25 ° C. is less than 12. For the purposes of the present invention, the term "organic amine salt" means organic or inorganic salts. an organic amine as described below. Preferably, the organic salts are chosen from salts of organic acids such as citrates, lactates, glycolates, gluconates, acetates, propionates, fumarates, oxalates and tartrates.

Preferably, the inorganic salts are chosen from halohydrates (hydrochlorides for example), carbonates, hydrogenocarbonates, sulphates, hydrogen phosphates and phosphates. The organic amine salt or salts come from an organic amine whose pKb at 25 ° C. is less than 12, preferably less than 10, and even more preferentially less than 6. It should be noted that this is pKb corresponding to the highest basicity function. Preferably, the organic amine or amines according to the invention do not comprise a fatty chain comprising more than 10 carbon atoms. According to a first variant of the invention, the organic amine comprises one or two primary, secondary or tertiary amine functions, and one or more linear or branched C1-C8 alkyl groups carrying one or more hydroxyl radicals. In particular, organic amines chosen from alkanolamines, such as mono-, di- or trialkanolamines, comprising one to three identical or different C 1 -C 4 hydroxyalkyl radicals are suitable.

Among compounds of this type, mention may be made of monoethanolamine, diethanolamine, triethanolamine,

monoisopropanolamine, diisopropanolamine, N-dimethylaminoethanolamine, 2-amino-2-methyl-1-propanol, triisopropanolamine, 2-amino-2-methyl-1,3-propanediol, 3-amino-1,2- propanediol, 3-dimethylamino-1,2-propanediol, trishydroxymethylaminomethane.

Organic amines of the following formula are also suitable: Rx Rz, N-W-N Ry Rt

wherein W is a C1-C6 alkylene residue optionally substituted with 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.

According to a second variant of the invention, the organic amine 20 is chosen from amino acids.

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 the carboxylic acid functions,

Sulfonic, phosphonic or phosphoric. Amino acids can be in neutral or ionic form.

As amino acids that may be used in the present invention, there may be mentioned in particular aspartic acid, glutamic acid, alanine, arginine, ornithine, citrulline, asparagine,

Carnitine, 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 (I): ## STR5 ## wherein R 2 CH 2 CH 2 (1) - (CH 2) 2 NH 2; - (CH2) 2NHCONH2; The compounds corresponding to formula (I) are histidine, lysine, arginine, ornithine, citrulline. Preferably, the organic amine is selected from basic amino acids. Particularly preferred amino acids are arginine, lysine, histidine, or mixtures thereof. According to a third variant of the invention, the organic amine is chosen from heterocyclic organic amines. Mention may in particular be made, in addition to the histidine already mentioned in the amino acids, pyridine, piperidine, imidazole, triazole, tetrazole, benzimidazole. According to a fourth variant of the invention, the organic amine is chosen from amino acid dipeptides. As amino acid dipeptides that may be used in the present invention, mention may be made in particular of carnosine, anserin and the NH- - (CH 2) 3 NH 2 whale; Where R denotes a group chosen from: According to a fifth variant of the invention, the organic amine is chosen from guanidine and compounds having a guanidine function. Thus, the organic amine may be chosen from guanidine, 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 - ([amino (imino) methyl] amino) ethane-1-sulfonic acid. Preferably, the organic amine salts present in the cosmetic composition (B) are chosen from inorganic salts of organic amines, in particular carbonates of organic amines. More preferably, the organic amine salts are selected from guanidine carbonate, inorganic salts of basic amino acids and inorganic salts of alkanolamines such as monoethanolamine hydrochloride. Even more preferably, the organic amine salt is guanidine carbonate. Advantageously, the cosmetic composition (B) has an organic amine salt content ranging from 0.01 to 30% by weight, preferably from 0.1 to 20% by weight relative to the weight of said composition (B). ). The cosmetic composition (B) can be an anhydrous or aqueous composition. By aqueous composition is meant a composition comprising more than 5% by weight of water, preferably more than 10% by weight of water, and even more advantageously more than 20% by weight of water. Preferably, the cosmetic composition (B) is an aqueous composition. The cosmetic composition (B) may optionally comprise one or more solvents.

Examples of organic solvents that may be mentioned include linear or branched C 2 -C 4 alkanols, such as ethanol and isopropanol; glycerol; polyols and polyol ethers such as 2-butoxyethanol, propylene glycol, dipropylene glycol, propylene glycol monomethyl ether, diethylene glycol monoethyl ether and monomethyl ether, as well as aromatic alcohols such as benzyl alcohol or phenoxyethanol, and mixtures thereof. The solvent or solvents, if present, represent a content usually ranging from 1 to 40% by weight relative to the weight of the cosmetic composition (B), and preferably ranging from 5 to 30% by weight. The cosmetic composition (B) may also comprise conventional additives such as those which have been listed previously and it will be possible to refer to them. The pH of the cosmetic composition (B) if it is aqueous is between 7 and 14, preferably between 8 and 12. The pH is adjusted by using acidifying or basifying agents. Among the acidifying agents, mention may be made by way of example inorganic or organic acids such as hydrochloric acid, orthophosphoric acid, sulfuric acid, carboxylic acids such as acetic acid, tartaric acid, citric acid, lactic acid, sulfonic acids. As regards the additional alkalinizing agent, if it is present, it may be chosen from the non-salified organic amines described above, or possibly, although not preferably, ammonia. If, however, ammonia is used as alkalinizing agent in the composition (B), then its content is preferably less than or equal to 0.03% by weight of the final composition (expressed in NI-13), more particularly less than or equal to 0.01% by weight relative to the final composition. It is stated that the final composition results from the mixing of the compositions (A), (B) and (C); these mixtures being produced either before application to the keratinous fibers (extemporaneous preparation) or directly to the keratinous fibers (successive applications with or without premixtures and without intermediate rinsing Finally, the process is carried out with a composition (C) comprising one or more oxidizing agents.

More particularly, the oxidizing agent (s) is (are) 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 and peracids and their precursors. One or more oxidation-reducing enzymes such as laccases, peroxidases and 2-electron oxidoreductases (such as uricase) may also be used as the oxidizing agent, optionally in the presence of their respective donor or cofactor. This oxidizing agent is advantageously constituted by hydrogen peroxide and especially in aqueous solution (hydrogen peroxide) whose concentration may vary, more particularly from 0.1 to 50% by weight, and even more preferably from 0.5 to 20% by weight. by weight, better from 1 to 15% by weight relative to the oxidizing composition (C). Depending on the desired degree of lightening, the oxidizing agent may also comprise an oxidizing agent preferably chosen from peroxygenated salts.

The oxidizing composition (C) may be aqueous or non-aqueous. By aqueous composition is meant a composition comprising more than 5% by weight of water, preferably more than 10% by weight of water, and even more advantageously more than 20% by weight of water. Preferably, the oxidizing composition (C) is an aqueous composition. It may also include one or more organic solvents. Examples of organic solvents that may be mentioned include linear or branched C 2 -C 4 alkanols, such as ethanol and isopropanol; glycerol; polyols and polyol ethers such as 2-butoxyethanol, propylene glycol, dipropylene glycol, propylene glycol monomethyl ether, diethylene glycol monoethyl ether and monomethyl ether, as well as aromatic alcohols such as benzyl alcohol or phenoxyethanol, and mixtures thereof. The solvent or solvents, if present, represent a content usually ranging from 1 to 40% by weight relative to the weight of the oxidizing composition (C), and preferably from 5 to 30% by weight. The oxidizing composition (C) may comprise one or more acidifying agents described above. Usually, the pH of the oxidizing composition (C), when aqueous, is less than 7.

The oxidizing composition (C) may also contain other ingredients conventionally used in the field, such as in particular those previously detailed in the context of the anhydrous composition (A). Finally, the oxidizing composition (C) is in various forms, such as a solution, an emulsion or a gel. Preferably, the composition resulting from the mixture of compositions (A), (B) and (C) is free of ammonia. According to a first variant of the invention, the compositions (A), (B) and (C) are applied to the keratinous fibers, dry or wet, successively and without intermediate rinsing, more particularly the compositions (A) are applied and then (B) then (C) or (B) then (A) then (C). A particular embodiment of this variant corresponds to applying successively and without intermediate rinsing the composition resulting from the mixture prior to the application of the compositions (A) and (B) and the oxidizing composition (C). According to a second variant of the process, a composition obtained by extemporaneous mixing before application of the compositions (A), (B) and (C) is applied to the dry or moist keratinous fibers. This variant is preferred. In this variant, the weight ratios R1 of the amounts of compositions (A) + (B) / (C) and R2 of the amounts of compositions (A) / (B) vary from 0.1 to 10, and preferably from 0, 3 to 3.

In addition, regardless of the variant used, the mixture present on the fibers (resulting either from the extemporaneous mixing of the compositions or from the successive application thereof) is left in place for a period, in general, of the from 1 minute to 1 hour, preferably from 5 minutes to 30 minutes. The temperature during the process is typically between room temperature (between 15 and 25 ° C) and 80 ° C, preferably between room temperature and 60 ° C. At the end of the treatment, the human keratin fibers are optionally rinsed with water, optionally washed with a shampoo followed by rinsing with water, before being dried or allowed to dry. Finally, the invention relates to compartments comprising an anhydrous composition (A) above, comprising a cosmetic composition (B) comprising one or more oxidation dyes and / or one or more direct dyes and one or more salts of organic amines of which the pKb is less than 12 at 25 ° C, and a third compartment containing a composition (C) comprising one or more oxidizing agents. The following examples serve to illustrate the invention without being limiting in nature. The following compositions were prepared (quantities expressed in grams). Anhydrous Composition A: Oxyethylenated Sorbitan Monolaurate (40E) 21.7 Pyrogenic Silica with Hydrophobic Characteristics 11.1 Vaseline Oil Qsp 100 Cosmetic composition B: Guanidine carbonate 20 Para-phenylene diamine 6.48 Resorcinol 6.54 1-beta-hydroxyethyloxy-2,4-diamino-benzene 0.15 dihydrochloride Sodium metabisulfite powder 0.45 Erythorbic acid 0.31 Water demineralized Qsp 100 At the time of use, mixed: -10 parts by weight of the composition (A), -4 parts by weight of the composition (B), and -15 parts by weight of an aqueous oxidizing composition comprising 6% by weight of hydrogen peroxide at pH 2.3 The mixture obtained, whose pH is about 10, is then applied to a lock of natural hair 90% white (BN) and a lock of hair 90 % permanent whites ( BP). The mixing bath / wick ratio is respectively 10/1 (g / g).

The break time is 30 minutes at 27 ° C. At the end of this time, the locks are rinsed, then washed with Elsève multivitamin shampoo.

Results The color of the locks was evaluated in the CIE L * a * b * system using a Minolta Spectrophotometer CM2600D colorimeter.

at. Calculation of the rise or variation of the color (AEab *) The rise in color (AEab *) was evaluated in the CIE L * a * b * system, using a Minolta Spectrophotometer CM2600D colorimeter. In this system L * a * b *, L * represents the intensity of the color, a * indicates the green / red color axis and b * the blue / yellow color axis. The lower the value of L *, the darker or more intense the color. In the table below, we calculate the value of AEab * from the values of L * a * b * according to the following equation (i):

AEab * = j (L * ùLo *) 2 + (a * ùa ° *) 2 + (b * ùbo *) 2 (i) The rise in color (AEab *) was calculated on the locks of white hair (BN) and on strands of permanent white hair (BP). In equation (i), for natural white locks of hair (BN), L *, a * and b * represent the values measured on locks of natural white hair after staining, and Lo *, ao * and bo * represent the values measured on locks of unstained natural white hair.

In equation (i), for strands of permed white hair (BP), L *, a * and b * represent the values measured on locks of white hair permed after staining, and Lo *, ao * and bo * represent the values measured on unstained strands of white hair. The higher the value of AEab *, the better the rise or variation of the color.

b. Calculation of selectivity

The value of AE (selectivity) is calculated from the values of L * a * b * measured according to the following equation (ii) AE _ .j (L * _L0 *) 2 + (a * ù ao *) 2 + (b * ù bo *) 2 (ii) In equation (ii), L *, a * and b * represent the values measured on strands of colored natural white hair, and Lo *, ao * and bo * represent the values measured on strands of 20 colored permanent white hair. The selectivity of the AE coloring corresponds to the variation of the color between natural hair, representative of the nature of the hair at the root, and permed hair that is representative of the nature of the hair at the tip. The lower the value of AE, the more homogeneous the coloring is between the tip and the hairline. The results are given in the table below. Selective Hair Wicking 60.58 0.03 12.85 Untreated Hair Wound 62.23 0.25 13.89 Untreated Permanent Hair Wick Natural Treated with Composition 16 , 07 0.79 0.46 46.2 according to the invention Permanent 0.28 hair strand treated with the 15.9 0.8 0.68 48.19 composition according to the invention As shown in the table above a dark, strong, low-selective wine is obtained with the process according to the invention.

In addition, no aggressive odor is observed, neither during the preparation of the coloring mixture nor during the wicking time.

Claims (18)

REVENDICATIONS1. A process for dyeing keratinous fibers, in particular human keratinous fibers such as the hair, in the presence of an oxidizing agent, characterized in that, on said fibers: (a) an anhydrous cosmetic composition (A) comprising a or a plurality of fatty substances and one or more surfactants, (b) a cosmetic composition (B) comprising one or more oxidation dyes and / or one or more direct dyes and one or more organic amine salts whose pKb is less than 12 at 25 ° C, and (c) a composition (C) comprising one or more oxidizing agents. 2. Method according to claim 1, characterized in that the anhydrous cosmetic composition (A) has a water content of less than 5% by weight, relative to the total weight of the anhydrous composition (A). 3. Method according to any one of the preceding claims, characterized in that the one or more fatty substances are chosen from liquid or pasty compounds at ambient temperature and at atmospheric pressure. 4. Process according to any one of the preceding claims, characterized in that the fatty substance (s) is (are) chosen from C6-C16 lower alkanes, fatty alcohols, fatty acids, fatty acid esters, fatty alcohol, non-silicone oils of mineral origin of more than 16 carbon atoms or of plant origin, animal or synthetic, non-silicone waxes, and silicones. 5. Process according to any one of the preceding claims, characterized in that the fatty substance or fats are chosen from liquid petroleum jelly, polydecenes, esters of fatty acids or fatty alcohols, liquids or mixtures thereof. 6. Process according to any one of the preceding claims, characterized in that the anhydrous composition (A) comprises one or more surfactants chosen from nonionic surfactants, in particular mono- or polyoxyalkylenated and mono- or poly-substituted nonionic surfactants. - glycerolated. 7. Process according to any one of the preceding claims, characterized in that the organic amine salts are organic salts of organic amines chosen from organic acid salts such as citrates, lactates, glycolates, gluconates, acetates, propionates, fumarates, oxalates and tartrates. 8. Process according to any one of claims 1 to 6, characterized in that the organic amine salts are inorganic salts of organic amines chosen from halohydrates such as hydrochlorides, carbonates, hydrogenocarbonates, sulfates, hydrogen phosphates and phosphates. 9. Process according to any one of the preceding claims, characterized in that the organic amine is chosen from compounds comprising one or two primary, secondary or tertiary amine functions, and one or more linear or branched alkyl groups, in C1. -C8 carriers of one or more hydroxyl radicals. 10. Process according to any one of claims 1 to 8, characterized in that the organic amine is chosen from the basic amino acids of formula (I): NH2 RùCH2 ùCH \ (1) CO2H where R denotes a chosen group among: - (CH2) 2NH2; - (CH2) 2NHCONH2; - (CH2) 3NH2 ;-( CH2) 2NH (i NHH2 NH 11. Process according to any one of claims 1 to 8, characterized in that the organic amine is chosen from: • heterocyclic organic amines such as pyridine, piperidine, imidazole, triazole, tetrazole, benzimidazole; • Amino acid dipeptides such as carnosine, anserin and whale. 12. Process according to any one of Claims 1 to 8, characterized in that the organic amine is chosen from guanidine or compounds containing a guanidine function, such as creatine, creatinine or 1,1-dimethylguanidine, 1. 1-diethylguanidine, glycocyamine, metformin, agmatine, n-amidinoalanine, 3-guanidinopropionic acid, 4-guanidinobutyric acid and 2 - ([amino (imino) methyl] amino) ethane l-sulfonic acid. 13. Process according to any one of claims 1 to 8, characterized in that the organic amine salt is guanidine carbonate. 14. Process according to any one of the preceding claims, characterized in that the compositions (A), (B) and (C) are applied successively and without intermediate rinsing. 15. A method according to any one of claims 1 to 13, characterized in that it is applied successively and without intermediate rinsing the composition resulting from the mixture prior to the application of the compositions (A) and (B) and the oxidizing composition (C). 16. A method according to any one of claims 1 to 13, characterized in that one applies a composition obtained by extemporaneous mixing before application, the compositions (A), (B) and (C). 17. A multi-compartment device comprising a first compartment containing the anhydrous composition (A) according to any one of claims 1 to 6, a second compartment containing a cosmetic composition (B) as defined according to any one of claims 1 and 7 to 13 comprising one or more oxidation dyes and / or one or more direct dyes, and one or more organic amine salts whose pKb is less than 12 at 25 ° C, and a third compartment containing a composition (C ) containing one or more oxidizing agents. 18. An anhydrous composition comprising one or more fatty substances, one or more surfactants, one or more oxidation dyes and / or direct, and one or more salts of organic amines whose pKb is less than 12 at 25 ° C.