FR2944440A1 - Composition, useful for dyeing human keratin fibers, comprises fatty substance, and auto-oxidizable dyes in a medium - Google Patents

Abstract

Composition (A) comprises at least 25 wt.% of one or more fatty substance; and one or more auto-oxidizable dyes in a medium. Independent claims are included for: a device comprising either: two compartments, where the: first compartment comprises a first composition comprising one or more fatty substances; a second compartment comprises second composition comprising one or more auto-oxidizable dyes; and compositions of the two compartments being intended to be mixed to give the composition (A), just prior to application to human keratin fibers; or three compartments, where the: first compartment comprises a first composition comprising one or more fatty substances; second compartment comprises second composition comprising one or more auto-oxidizable dyes; the third compartment comprises one or more oxidizing agents; and the compositions in three compartments are intended to be mixed to give the composition (A), just prior to application to human keratin fibers.

Description

The subject of the present invention is a dyeing composition for human keratin fibers comprising a high content of fatty substances and at least one auto-oxidizable dye. . The invention also relates to a dyeing method implementing it as well as multi-compartment devices. Among the methods of staining human keratinous fibers, such as the hair, mention may be made of oxidation or permanent staining. More particularly, this mode of dyeing involves one or more oxidation dye precursors, usually one or more oxidation bases possibly associated with one or more couplers. In general, 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, when combined with oxidizing products, make it possible to access colored species by an oxidative condensation process. 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. These processes therefore consist in using with the dyeing composition an aqueous composition comprising at least one oxidizing agent. In alkaline pH condition, the oxidizing agent has the role 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, as well as to cause the polymerization of the dyes to give the colored species. As for the alkaline agent used, it is in the majority of cases ammonia whose role is both to allow the activation of the oxidizing agent by destabilizing it, and to cause an opening of the scales keratinous fibers, promoting the penetration of the oxidant, dyes, which increases the effectiveness of the coloring 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 a neutral or slightly alkaline pH condition, a coverage of 40 white hairs is obtained without substantially changing the color of the hair; This coloration is called tonal tone.5 However, these two modes of coloring can in the long run cause damage to the hair. This is why we have developed the use of dyes oxidizing with oxygen in the air, also called auto-oxidizable dyes. The disadvantage of the processes involving these dyes lies in particular in the fact that the colorations obtained are rather light and appear slowly. One of the objectives of the present invention is to provide coloring compositions implemented in the presence of auto-oxidizable agents to achieve powerful colorations, allowing good coverage of white hair, but also homogeneous, which does not do not degrade the hair.

These and other objects are achieved by the present invention which therefore relates to a composition for staining human keratin fibers, characterized in that it comprises, in a cosmetically acceptable medium: (a) at least 25% by weight of one or more fatty substances; (b) one or more auto-oxidizable dyes.

It also relates to a method for staining human keratinous fibers comprising carrying out the aforementioned composition.

The invention likewise relates to a device with two compartments comprising in one, a first composition comprising one or more fatty substances, in the other, a second composition comprising one or more auto-oxidizable dyes; the compositions of the two compartments being intended to be mixed to give the composition according to the invention, just before application to the keratinous fibers. It further relates to a three-compartment device comprising in one, a first composition comprising one or more fatty substances, in the other, a second composition comprising one or more auto-oxidizable dyes, and in the third one or more agents. oxidants; the compositions of the three compartments being intended to be mixed to give the composition according to the invention, just before application to human keratinous fibers

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 composition according to the invention comprises at least 25% by weight of one or more fatty substances.

The term "fatty substance" means an organic compound which is insoluble in water at ordinary temperature (25 ° C.) and at atmospheric pressure (760 mmHg) (solubility less than 5% and preferably less than 1%, more preferably less than 0%). , 1%). They have in their structure at least one hydrocarbon chain comprising 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, ethanol, benzene, petroleum jelly or decamethylcyclopenasiloxane. According to the invention, the fatty substances are chosen from liquid or pasty compounds at ambient temperature and at atmospheric pressure. More particularly, the one or more fatty substances are chosen from C 6 -C 16 lower alkanes, non-silicone oils of animal, vegetable, mineral or synthetic origin, fatty alcohols, fatty acids, fatty acid esters and the like. / or fatty alcohol, non-silicone waxes, silicones.

It is recalled that for the purposes of the invention, the alcohols, esters and fatty acids more particularly have at least one hydrocarbon group, linear or branched, saturated or unsaturated, comprising 6 to 30 carbon atoms, which is 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, branched, and possibly cyclic. By way of example, mention may be made of hexane, dodecane and isoparaffins, such as isohexadecane and isodecane.

Non-silicone oils of animal, vegetable, mineral or synthetic origin that can be used in the composition of the invention include, for example: hydrocarbon-based oils of animal origin, such as perhydrosqualene. triglyceride oils of vegetable or synthetic origin, such as liquid triglycerides of fatty acids containing from 6 to 30 carbon atoms, for example triglycerides of heptanoic or octanoic acids, or else, for example, sunflower, corn, soya, squash, grape seed, sesame, hazelnut, apricot, macadamia, arara, sunflower, castor oil, 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 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. fluorinated oils such as 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 fatty alcohols that are suitable for carrying out the invention are more particularly chosen from linear or branched saturated or unsaturated alcohols containing from 8 to 30 carbon atoms. For example, cetyl alcohol, stearyl alcohol and their mixture (cetylstearyl alcohol), octyldodecanol, 2-butyloctanol, 2-hexyldecanol, 2-undecylpentadecanol, oleic alcohol or linoleic alcohol may be mentioned; .

The fatty acids that can be used in the context of the invention are more particularly chosen from saturated or unsaturated carboxylic acids containing from 6 to 30 carbon atoms, in particular from 9 to 30 carbon atoms. They are advantageously chosen from myristic acid, palmitic acid, stearic acid, behenic acid, oleic acid, linoleic acid, linolenic acid and isostearic acid.

With regard to fatty acid esters and / or fatty alcohols, advantageously different from the triglycerides mentioned above; mention may be made in particular of saturated or unsaturated, linear or branched C 1 -C 26 aliphatic or monohydric acid esters and saturated or unsaturated, linear or branched C 1 -C 26 aliphatic mono- or polyalcohols, the total number of carbon of the 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-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 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 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 12 -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 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 example, of esters or mixtures of esters of fatty acid sugar: the products sold under the names F160, F140, F110, F90, F70 and SL40 by the company Crodesta, respectively designating sucrose palmito-stearates of 73% monoester and 27% di- and tri-ester, 61% monoester and 39 di-, tri- and tetraester, 52% monoester and 48% of 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-di-palmito-stearate marketed by Goldschmidt under the name Tegosoft PSE.

The wax or the non-silicone waxes are chosen in particular from carnauba wax, candelila wax, and alfa wax, paraffin wax, ozokerite, vegetable waxes such as olive wax, wax of rice, 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 which can be used according to the invention are especially marine waxes such as that sold by SOPHIM under reference M82, polyethylene waxes or polyolefin waxes in general. Silicones that can be used in cosmetic compositions 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. and preferably 1 × 10 -5 to 1 m2 / 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 more particularly between:

(i) cyclic polydialkylsiloxanes having 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 SILBONE 70045 V2 by RHODIA, decamethylcyclopentasiloxane marketed under the name VOLATILE SILICONE 7158 by UNION CARBIDE, and SILBONE 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 the formula: ## STR5 ## where: ## STR1 ## also mention mixtures of cyclic polydialkylsiloxanes with organic compounds derived from silicon, 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 -6 m 2 / s at 25 ° C. It is, for example, decamethyltetrasiloxane marketed in particular under the name "SH 200 "by the company TORAY SILICONE. 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". Preferably, non-volatile polydialkylsiloxanes, polydialkylsiloxane gums and resins, polyorganosiloxanes modified with the above organofunctional groups and mixtures thereof are 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 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 a hydroxylated polydimethylsiloxane at the end of the chain, 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 30 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 SO 2/2, R 3 SiO 2, RSIO 3/2 and SIO4 / 2 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. These resins may include the product marketed under the name "Dow Corning 593" or those sold under the names "Silicone 15, 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 can 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 polydiaryl siloxanes, 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 include by way of example the products sold under the following names: SILBIONE oils of the 70 641 series from RHODIA; . the RHODORSIL 70 633 and 763 RHODIA series of oils; 35. DOW CORNING 556 COSMETIC GRAD FLUID oil from DOW CORNING, BAYER PK series silicones such as PK20 product, BAYER PN, PH series silicones such as PN1000 and PH1000 products, certain series oils. SF of GENERAL ELECTRIC such as SF 1023, SF 40 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 the company UNION CARBIDE and the alkyl (C12) -methicone copolyol sold 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 sold 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. Preferably, the fatty substance is a liquid compound at a temperature of 25 ° C. and at atmospheric pressure. The fatty substances are preferably chosen from C 6 -C 16 lower alkanes, non-silicone oils of plant origin, mineral or synthetic, fatty alcohols, fatty acid esters and / or fatty alcohol esters, silicones and the like. , or their mixtures. Preferably, the fatty substance is chosen from liquid petroleum jelly, polydecenes, fatty acid esters and / or fatty alcohol esters, or mixtures thereof.

The anhydrous cosmetic composition 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 composition. anhydrous.

As indicated above, the composition according to the invention comprises one or more auto-oxidizable dyes. More particularly, the auto-oxidizable dyes are chosen from benzene, indole or indolinic auto-oxidizable dyes. Among the benzene auto-oxidizable dyes that may be used in the composition according to the invention, there may be mentioned in particular the following compounds of formula (I) and their addition salts with an acid: OH in which: R 'represents a hydrogen atom, a C 1 -C 4 alkyl radical or an amino radical, R '2 represents a C 1 -C 4 alkyl, hydroxyl, amino, C 1 -C 4 monoalkyl or C 1 -C 4 dialkyl radical; ) amino, R'3 represents a hydrogen atom, a hydroxyl or amino radical, R'4 represents a hydrogen atom or an amino radical; It being understood that at least two of the radicals R 'and R' 4 represent, independently of one another, a hydroxyl, amino, monoalkyl (C 1 -C 4) amino or dialkyl (C 1 -C 4) amino radical; . Among the benzene auto-oxidizable dyes of the above form, 1,2,4-trihydroxybenzene, 1-methyl 2,4,5-trihydroxybenzene, 2,4-diamino-6-methylphenol may be mentioned more particularly. 2-amino-4-methylamino phenol, 2,5-diamino-4-methylphenol, 2,6-diamino-4-diethylamino phenol, 2,6-diamino-1,4-dihydroxybenzene, and their salts; addition with an acid.

Among the indole and indolinic auto-oxidizable dyes that may be used in the dye composition in accordance with the invention, mention may be made in particular of the compounds of formulas (II) and (III) below: (I) R'80 R 7 R'80 R R'6 R'90 R'5 R '7 R'6 (II) in which: R'5, R'6, R', and R'8, identical or different, represent an atom of hydrogen, a C1-C4 alkyl radical or a C1-C4 acyl radical; R'9 represents a hydrogen atom, a C1-C4 alkyl radical or a carboxyl radical.

Among the auto-oxidizable dyes of formula (II) above, there may be mentioned more particularly 5,6-dihydroxyindole, 2-methyl-5,6-dihydroxyindole, 3-methyl-5,6-dihydroxyindole, 1-methyl-5,6-dihydroxyindole, 2,3-dimethyl-5,6-dihydroxyindole, 5-methoxy-6-hydroxyindole, 5-acetoxy-6-hydroxyindole, 5,6-diacetoxyindole, 5,6-dihydroxyindole-2-carboxylic acid, and their addition salts with an acid. Among the auto-oxidizable dyes of formula (III) above, there may be mentioned more particularly 5,6-dihydroxyindoline, 1-methyl-5,6-dihydroxyindoline, 1-ethyl-5,6-dihydroxyindoline, and their addition salts with an acid. The content of the autoxidisable dye (s) advantageously represents 0.01 to 20% by weight, preferably from 0.05 to 10% by weight, relative to the weight of the composition.

The composition may optionally comprise one or more direct dyes. In this case, the latter are more particularly chosen from ionic or nonionic species, preferably cationic or nonionic species. Examples of suitable direct dyes include 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-whose two nitrogen atoms 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 ring. 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 linkages may be engaged in one ring. More particularly, the dyes of this family are derived from methine, azomethine, mono- and di-arylmethane compounds, indoamines (where diphenylamines), indophenols, indoanilines, carbocyanines, azacabocyanines and their isomers, diazacarbocyanines and their isomers, tetraazacarbocyanines, hemicyanines Concerning the dyes of the carbonyl family, 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, 40 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, 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.

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. Preferably the composition of the invention does not include bases and oxidation couplers.

The composition according to the invention preferably also comprises one or more surfactants. Preferably, the surfactant or surfactants are chosen from nonionic surfactants or from anionic surfactants.

The anionic surfactants are more especially chosen from salts (in particular salts of alkali metals, in particular of sodium, ammonium salts, amine salts, salts of aminoalcohols or salts of alkaline-earth metals such as magnesium) of the following compounds alkyl sulphates, alkyl ether sulphates, alkyl amido ether sulphates, alkyl aryl polyether sulphates, monoglyceride sulphates; alkylsulfonates, alkylamidesulfonates, alkylarylsulfonates, α-olefinsulfonates, paraffin sulfonates; alkylphosphates, alkyl ether phosphates; alkylsulfosuccinates, alkylethersulfosuccinates, alkylamidesulfosuccinates; 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.

By way of examples of oxyalkylenated nonionic surfactants, mention may be made of: • oxyalkylenated (C 8 -C 24) alkyl phenols, • linear or branched, oxyalkylenated C 8 -C 30 saturated or non-saturated 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 of sorbitol, • oxyethylenated vegetable oils, saturated or not, • ethylene oxide and / or propylene oxide, among others, alone or in mixtures.

Surfactants having a number of moles of ethylene oxide and / or propylene of between 1 and 100, preferably between 2 and 50, preferably between 2 and 30. Advantageously, the nonionic surfactants do not comprise any reasons. oxypropylenated.

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; linear or branched, saturated or unsaturated C8-C30 acid esters, and polyoxyethylenated sorbitol esters comprising from 1 to 100 moles of ethylene oxide.

By way of example of mono- or poly-glycerolated nonionic surfactants, the C 8 -C 40 mono- or polyglycerolated alcohols 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 alkyl or alkenyl radical, C8-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 represent a mixture of alcohols in the same way that the value of m represents a statistical value, which means that in a commercial product can coexist several species of polyglycerolated fatty alcohols in the form of 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 alcohol with 012 to 1.5 mole of glycerol.

Preferably, the surfactant present in the composition is a nonionic surfactant. The content of surfactants in the composition is more particularly from 0.1 to 50% by weight, preferably from 0.5 to 30% by weight relative to the weight of the composition.

The composition may also include various adjuvants conventionally used in hair dye compositions, such as anionic, cationic, nonionic, amphoteric, zwitterionic polymers or mixtures thereof; antioxidants; penetrants; sequestering agents; perfumes; dispersants; film-forming agents; conditioners; 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.

The composition may comprise one or more mineral thickeners chosen from organophilic clays, pyrogenic silicas, or mixtures thereof. The organophilic clay may be selected from montmorillonite, 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 obtained in particular by treatment of fumed silica in the presence of hexamethyldisilazane. Silicas thus treated are referred to as "Silica silylate" according to the CTFA (2nd 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 called "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.

The composition may also include one or more organic thickeners. These thickening agents may be chosen from fatty acid amides (diethanol or coconut monoethanol amide, oxyethylenated alkyl ether carboxylic acid monoethanolamide), polymeric thickeners such as cellulosic thickeners (hydroxyethylcellulose, hydroxypropylcellulose, carboxymethylcellulose), guar gum and its derivatives (hydroxypropylguar), gums of microbial origin (xanthan gum, scleroglucan gum), crosslinked homopolymers of acrylic acid or acrylamidopropanesulfonic acid and associative polymers (polymers comprising hydrophilic zones, and hydrophobic zones with a fatty chain (alkyl, alkenyl comprising at least 10 carbon atoms) capable, in an aqueous medium, of reversibly associating with each other or with other molecules). According to one particular embodiment, the organic thickener is chosen from cellulose thickeners (hydroxyethylcellulose, hydroxypropylcellulose, carboxymethylcellulose), guar gum and its derivatives (hydroxypropylguar), gums of microbial origin (xanthan gum, scleroglucan gum). ), the crosslinked homopolymers of acrylic acid or acrylamidopropanesulfonic acid, and preferably from cellulosic thickeners with in particular hydroxyethylcellulose. The content of organic thickening agent (s), if present, usually ranges from 0.01% to 20% by weight, based on the weight of the composition, preferably from 0.1 to 5% by weight. The composition according to the invention may comprise one or more basifying agents. More particularly, the basifying agent is chosen from ammonia, alkali metal carbonates or bicarbonates, sodium or potassium hydroxides and organic amines whose pKb at 25 ° C. is less than 12, preferably less than 10, and more preferably more preferably less than 6. It should be noted that this is the pKb corresponding to the highest basicity function. The organic alkalinizing agent (s) are, for example, chosen from alkanolamines, amino acids and compounds of the following formula (IV): ## STR1 ##

(IV) wherein W is a C1-C6 alkylene radical 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 functional group and one or more linear or branched C1-C8 alkyl groups carrying one or more hydroxyl radicals. Alkanolamines, such as mono-, di- or trialkanolamines comprising one to three identical or different C1-C4 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, 2-amino -2-methyl-1,3-propanediol, 3-amino-1,2-propanediol, 3-dimethylamino-1,2-propanediol, tris-hydroxymethylaminomethane.

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, sulphonic, 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 chosen from 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 (V): ## STR2 ##

(V) wherein R denotes a group chosen from: - (CH2) 3NH2 - (CH2) 2NH2 - (CH2) 2NH li = NH2 NH The compounds corresponding to the formula (X) 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 be made of pyridine, piperidine, imidazole, triazole, tetrazole, benzimidazole. The organic amine may also be selected from amino acid dipeptides. As amino acid dipeptides which can be used in the present invention, mention may be made in particular of carnosine, anserin and whale. The organic amine may be chosen from compounds containing a guanidine function. As amino amines of this type which can be used in the present invention, mention may in addition be made of the arginine already mentioned as amino acid, creatine, creatinine, 1,1-dimethylguanidine, , 1-diethylguanidine, glycocyamine, metformin, agmatine, n-amidinoalanine, 3-guanidinopropionic acid, 4-guanidinobutyric acid and 2- ([amino (imino) methyl] amino) ethane -1-sulfonic acid. As hybrid compounds it is also possible to use the salts of the amines mentioned above with acids such as carbonic acid and hydrochloric acid. - (CH2) 2NHCONH2.

In particular, it is possible to use guanidine carbonate or monoethanolamine hydrochloride. Advantageously, the composition according to the invention has a content of alkalinizing agent (s) ranging from 0.001 to 20% by weight, preferably from 0.005 to 5% by weight relative to the weight of said composition. Preferably, the basifying agent, if it is present, is chosen from organic amines and preferably from alkanolamines, preferably monoethanolamine, basic amino acids, and mixtures thereof. More particularly, the basifying agent is chosen from alkanolamines, and advantageously monoethanolamine.

The cosmetically acceptable medium of the composition according to the invention is a medium comprising at least water and optionally one or more organic solvents. As organic solvent, mention may be made, for example, of monoalcohols or diols, linear or branched, preferably saturated, comprising 2 to 10 carbon atoms, such as ethyl alcohol, isopropyl alcohol, hexylene glycol ( 2-methyl-2,4-pentanediol), nepentylglycol and 3-methyl-1,5-pentanediol; aromatic alcohols such as benzyl alcohol, phenylethyl alcohol; glycerol; polyols or polyol ethers such as, for example, ethylene glycol monomethyl, monoethyl and monobutyl ethers, 2-butoxyethanol, propylene glycol or its ethers such as, for example, propylene glycol monomethyl ether, butylene glycol, dipropylene glycol; and the alkyl ethers of diethylene glycol, especially C1-C4, for example diethylene glycol monoethyl ether or monobutyl ether, alone or as a mixture. The 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 dyeing composition.

Preferably, the composition of the invention contains water. More particularly, the water concentration ranges from 10 to 70% by weight, and preferably from 20 to 55% by weight, relative to the total weight of the composition. .

The pH of an aqueous composition according to the invention is advantageously 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 alkalinizing or acidifying agents usually used in dyeing keratin fibers or else using conventional buffer systems.

Reference may be made to the alkalinizing agents mentioned above.

Acidifying agents include, for example, inorganic or organic acids such as hydrochloric acid, orthophosphoric acid, carboxylic acids such as tartaric acid, citric acid, acid lactic acid, or sulfonic acids.

The dye composition according to the invention may be in various forms, such as in the form of liquids, creams, gels, or in any other form suitable for dyeing keratinous fibers, and especially human hair. Advantageously ,. the composition according to the invention is in the form of a gel or a cream.

The composition according to the invention may or may not be obtained by mixing at least two different compositions, or even three different compositions. It should be noted that the composition according to the invention can be prepared just before. its application to human keratin fibers, particularly if it comprises an oxidizing agent. Thus, the composition according to the invention can be obtained by mixing a first composition comprising one or more fatty substances, with a second composition comprising one or more auto-oxidizable dyes. The first composition may be anhydrous. By anhydrous composition is meant in the sense of the invention containing less than 5% and preferably less than 1% water. The composition preferably does not contain added water, the water present being bound water from the hygroscopic raw materials or the water of crystallization of the compounds. The ingredients of the aforementioned compositions and their contents are determined according to the characteristics detailed previously for the final composition according to the invention. If the composition comprises one or more oxidizing agents, then it is preferably obtained by mixing a first composition comprising one or more fatty substances and one or more auto-oxidizable dyes with the oxidizing composition. It may also result from the mixture before application of a first composition comprising at least 25% by weight of fatty substances, with a second composition comprising one or more auto-oxidizable dyes and a third composition comprising one or more oxidizing agents. . In each of the aforementioned variants, if the oxidizing composition is present, it is preferably an aqueous composition. In particular, it comprises 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. The oxidizing agent can be a metal salt, a persalt (persulfate or percarbon) or a peroxide. Preferably, the oxidizing composition comprises hydrogen peroxide as an oxidizing agent, in aqueous solution, the title of which varies, more particularly, between 1 and 40 volumes (0.3 to 12% of H2O2), and even more preferably between 5 and 40 volumes (1.5 to 12% H 2 O 2).

It may also comprise one or more organic solvents chosen from those listed previously; 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 or tartaric acid, citric acid; lactic acid, sulphonic acids. Usually, the pH of the oxidizing composition, when aqueous, is less than 7.

The dyeing process according to the invention therefore consists in applying the composition according to the invention to human keratin fibers, dry or wet.

The composition is then left in place for a period usually ranging from one minute to one 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 a device with two compartments comprising in one, a first composition comprising one or more fatty substances, in the other, a second composition comprising one or more auto-oxidizable dyes; the compositions of the two compartments being intended to be mixed to give the composition according to the invention, just before application to the human keratin fibers, so that the composition resulting from the mixture is as defined previously. It also relates to a device with three compartments comprising in one, a first composition comprising one or more fatty substances, in the other, a second composition comprising one or more auto-oxidizable dyes, and in the third one or more oxidizing agents ; the compositions of the three compartments being intended to be mixed to give the composition according to the invention, just before application to the human keratin fibers, so that the composition resulting from the mixture is as defined previously.

The following example serves to illustrate the invention without being limiting in nature.

EXAMPLE

The two following compositions are prepared: Composition 1: Monoethanolamine 6 g Glycerin / 43 g Lauryl cetearyl glycol with 6 moles of glycerol (Chimexane NS) 1 g Vasselin oil 52 g

Composition 2: 5,6 Dihydroxyindole 1g Ethanol 10g Preservatives qs Water qs 100 g

Weight for weight compositions 1 and 2 are mixed.

The mixtures obtained on gray hair at 90% white in a bath ratio of 10 g per 1 g of hair are then applied at ambient temperature (25 ° C.). After 20 minutes break, we rinse hair. These are colored in a sustained gray shade.

Claims (6)

REVENDICATIONS1. Coloring composition of human keratinous fibers, characterized in that it comprises, in a cosmetically acceptable medium: (a) at least 25% by weight of one or more fatty substances; (b) one or more auto-oxidizable dyes. 2. Composition according to the preceding claim, characterized in that the one or more fatty substances are chosen from C6-C16 lower alkanes, non-silicone oils of animal, vegetable, mineral or synthetic origin, fatty alcohols, fatty acids. fatty acid esters and / or fatty alcohol, non-silicone waxes, silicones. 3. Composition according to any one of claims 1 or 2 characterized in that the one or more fatty substances are chosen from liquid or pasty compounds and preferably liquid, at room temperature and at atmospheric pressure. 4. Composition according to any one of the preceding claims, in which the fatty substance is chosen from C 6 -C 16 lower alkanes, non-silicone oils of plant, mineral or synthetic origin, fatty alcohols, fatty acid esters and the like. or of fatty alcohol, or mixtures thereof. 5. Composition according to any one of the preceding claims, characterized in that the fat content varies from 25 to 80% by weight, more preferably 25 to 65% by weight, preferably 30 to 55% by weight. relative to the weight of the composition. 6. Composition according to any one of the preceding claims, characterized in that the auto-oxidizable dyes are chosen from benzene, indole or indolinic auto-oxidizable dyes. Composition according to any one of the preceding claims, characterized in that the dyes auto-oxidizable are chosen from the compounds of formula (I) below and their addition salts with an acid: OH in which: (1) - R'1 represents a hydrogen atom, a C1-C4 alkyl radical or an amino radical; R'2 represents a C1-C4 alkyl, hydroxyl, amino, (C1-C4) monoalkyl amino or dialkyl (C1-C4) amino radical; R'3 represents a hydrogen atom, a radical; hydroxyl or amino, R'4 represents a hydrogen atom or an amino radical; it being understood that at least two of the radicals R'1 to R'4 represent, independently of one another, a hydroxyl, amino, monoalkyl (C1-C4) amino or dialkyl (C1-C4) amino radical. 8. Composition according to any one of the preceding claims, characterized in that the indole and indolinic auto-oxidizable dyes are chosen from the following compounds of formulas (II) and (III): (III) R'80 R7 (H) R R ', R'90 N R'6 R'90 N R'6 I R'5 R'5 (II) (III) in which: R'5, R'6, R'7 and the same or different, represent a hydrogen atom, a C 1 -C 4 alkyl radical or C 1 -C 4 acyl radical; R 9 represents a hydrogen atom, a C 1 -C 4 alkyl radical or a carboxyl radical. 9. Composition according to any one of the preceding claims, characterized in that the content of auto-oxidizable dyes is between 0.01 to 20% by weight, preferably from 0.05 to 10% by weight, relative to weight of the composition 10. Composition according to any one of the preceding claims, characterized in that it comprises at least one direct dye, more particularly chosen from ionic or nonionic dyes, azo; methinic; carbonyls; azinic; nitro (hetero) aryl; tri- (hetero) aryl methanes; porphyrins; phthalocyanines and natural direct dyes, alone or in mixtures. 11. Composition according to any one of the preceding claims, characterized in that it comprises one or more basifying agents chosen from ammonia, alkali metal carbonates or bicarbonates, hydroxides of sodium or potassium and organic amines. 2944440 whose pKb at 25 ° C is less than 12, or their mixtures and the salts of these amines. Composition according to any of the preceding claims, characterized in that the basifying agent is an organic amine corresponding to an alkanolamine, a basic amino acid or mixtures thereof. 13. Composition according to any one of the preceding claims, characterized in that the content of basifying agent is between 0.001 and 20% by weight, preferably between 0.005 and 5% by weight relative to the weight of the composition. 14. Composition according to any one of the preceding claims, characterized in that it comprises one or more oxidizing agents. 15. Composition according to the preceding claim, characterized in that the content of oxidizing agents is between 0.001 and 15% by weight, preferably between 0.1 and 10% by weight, relative to the weight of the composition. 16. A process for dyeing human keratin fibers, characterized in that the composition according to any one of the preceding claims is applied. 17. A two-compartment device comprising in one a first composition comprising one or more fatty substances, in the other a second composition comprising one or more auto-oxidizable dyes; the compositions of the two compartments being intended to be mixed to give the composition according to the invention, just before application to the human keratin fibers, so that the resulting composition of the mixture is as defined in any one of the claims 1 to 1.5. 18. A three-compartment device comprising in one, a first composition comprising one or more fatty substances, in the other, a second composition comprising one or more auto-oxidizable dyes, and in the third one or more oxidizing agents; the compositions of the three compartments being intended to be mixed to give the composition according to the invention, just before application to the human keratinous fibers, so that the resulting composition of the mixture is as defined in any one of claims 1 at 15. 1540