FR3150429A1 - Composition comprising a particular base and ammonium bicarbonate. - Google Patents

Abstract

Composition comprising a particular base and ammonium bicarbonate. The invention relates to a composition comprising at least one particular base and ammonium bicarbonate.

Description

Composition comprising a special base and ammonium bicarbonate.

The invention relates to a composition comprising at least one particular base and ammonium bicarbonate.

The invention also relates to a process for coloring keratin fibers, in particular hair, using this composition.

The invention also relates to the use of such a composition for coloring keratin fibers, and in particular hair.

For a long time, many people have sought to change the color of their hair, and in particular to cover their gray hair.

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

There are essentially three types of hair coloring processes:

a) so-called permanent coloring which has the function of bringing about a significant change in the natural color and which uses oxidation dyes which penetrate the hair fiber and form the dye by a process of oxidative condensation;

b) non-permanent, semi-permanent or direct coloring, which does not implement the oxidative condensation process and resists 4 or 5 shampoos; consists of dyeing the keratin fibers with dye compositions containing direct dyes;

c) Temporary hair coloring, which results in a change to the natural hair color that lasts from one shampoo to the next and is used to enhance or correct an existing shade. It can also be considered a "makeup" procedure.

It is known to dye keratin fibers, particularly human keratin fibers such as hair, to obtain so-called permanent colors using dye compositions containing oxidation dye precursors, including oxidation bases such as ortho- or para-phenylenediamines, ortho- or para-aminophenols, or heterocyclic compounds such as pyrazoles, pyrazolinones, or pyrazolopyridines. These oxidation bases are colorless or weakly colored compounds which, when combined with oxidizing agents, can give rise to colored compounds through an oxidative condensation process.

It is also possible to vary the shades obtained with these oxidation bases by combining them with couplers or color modifiers. The variety of molecules involved in the oxidation bases and couplers allows for a rich palette of colors.

However, the implementation of these dyeing compositions can present a number of disadvantages.

Indeed, after application to keratin fibers, the dyeing power obtained may not be entirely satisfactory, or even weak, and lead to a limited range of colors.

Hair dyes may also not be sufficiently resistant to external agents such as light, shampoos, perspiration, and may also be too selective, meaning that the difference in color is too great along the same keratin fiber which is differently sensitized between its tip and its root.

Consumers are also looking for more environmentally friendly hair coloring products, particularly those based on naturally derived ingredients, that offer good performance, are easy to use, and provide good coloring results.

The formulation of environmentally friendly cosmetic products, that is to say whose design and development take environmental issues into account, is becoming a major concern in order to help meet global challenges.

It is therefore essential to offer more sustainable compositions that can address these environmental challenges.

Thus, there is a real need to make available a coloring composition for keratin fibers, in particular human keratin fibers such as hair, that is more environmentally friendly and capable of producing good color rise, intensity and chromaticity, while having low selectivity and good tenacity, including good shampoo retention, and capable of producing good dyeing performance, even after a period of storage, while having good usability and maintaining good sensory performance, particularly in terms of shine, softness, suppleness, smoothness, and detangling of keratin fibers such as hair.

These and other goals are achieved by the present invention, which therefore relates to a composition comprising:
- at least one base chosen from: 2-β-hydroxyethyl-para-phenylenediamine and its addition salts, its solvates and/or the solvates of its salts, 2-(γ-hydroxypropyl)-para-phenylenediamine and its addition salts, its solvates and/or the solvates of its salts, 2-methoxymethyl-para-phenylenediamine and its addition salts, its solvates and/or the solvates of its salts and their mixtures;
- ammonium bicarbonate.

According to a preferred embodiment, the composition according to the invention is a composition for coloring keratin fibers, in particular hair.

The composition according to the invention makes it possible in particular to produce chromatic, powerful, intense and not very selective colours, that is to say colours which are homogeneous along the fibre.

The composition according to the invention exhibits good residual effect on shampoos, as well as good stability over time, in particular a low evolution, or even no evolution of its viscosity during storage.

The composition according to the invention has good performance qualities, particularly in terms of texture, ease of application, adhesion to hair, and lengthening.

The composition according to the invention also makes it possible to achieve good cosmetic qualities, particularly in terms of shine, softness, suppleness, a more natural feel, while preserving the integrity of the fiber.

The composition according to the invention also makes it possible to provide cosmetic compositions for keratin fibers that do not have a strong ammonia odor.

The invention also relates to a method of coloring hair using the composition of the invention.

The invention also relates to a kit comprising in a first compartment a composition as defined above and in a second compartment an oxidizing composition comprising at least one chemical oxidizing agent.

By " chemical oxidizing agent " according to the invention, we mean an oxidizing agent other than oxygen from the air.

Other objects, features, aspects and advantages of the invention will become even clearer upon reading the description and examples that follow.

In what follows, and unless otherwise indicated, the boundaries of a range of values are included in that range, in particular in the expressions "between" and "ranging from ... to ...".

Furthermore, the expression " at least one " used in this description is equivalent to the expression " one or more ".

oxidation base

The composition according to the invention comprises at least one particular oxidation base.

Oxidation bases can be present in the form of salts, solvates and/or solvates of salts.

The composition according to the invention comprises at least one oxidation base selected from 2-β-hydroxyethyl-para-phenylenediamine, its addition salts, its solvates and/or the solvates of its salts, 2-(γ-hydroxypropyl)-para-phenylenediamine and its addition salts, its solvates and/or the solvates of its salts, 2-methoxymethyl-para-phenylenediamine, its addition salts, its solvates and/or the solvates of its salts and mixtures thereof.

The addition salts, when present in the composition according to the invention, are in particular chosen from addition salts with an acid such as hydrochlorides, hydrobromides, sulfates, citrates, succinates, tartrates, lactates, tosylates, benzenesulfonates, phosphates and acetates, and addition salts with a base such as sodium, potassium, ammonia, amines or alkanolamines.

Furthermore, the solvates, when present in the composition according to the invention, They represent more specifically the hydrates of said bases and/or the association of said bases with a linear or branched alcohol in C1 to C4 such as methanol, ethanol, isopropanol, n-propanol. Preferably, the solvates are hydrates.

The total content of oxidation base(s) chosen from 2-β-hydroxyethyl-para-phenylenediamine, 2-(γ-hydroxypropyl)-para-phenylenediamine, 2-methoxymethyl-para-phenylenediamine, one of their addition salts, their solvates, and/or the solvates of their salts and mixtures thereof shall vary preferably from 0.001 to 20% by weight, more preferably from 0.005 to 15% by weight, better from 0.01 to 10% by weight, even better from 0.05 to 5% by weight, even better from 0.1 to 3% by weight relative to the total weight of the composition.

When present, the total content of oxidation base selected from 2-β-hydroxyethyl-para-phenylenediamine, one of its addition salts, its solvates and/or the solvates of its salts varies preferably from 0.001 to 20% by weight, preferably still from 0.005 to 15% by weight, more preferably from 0.01 to 10% by weight, better from 0.05 to 5%, even better from 0.1 to 3% by weight relative to the total weight of the composition.

When present, the total content of oxidation base selected from 2-(γ-hydroxypropyl)-para-phenylenediamine, one of its addition salts, its solvates and/or the solvates of its salts varies preferably from 0.001 to 20% by weight, preferably still from 0.005 to 15% by weight, more preferably from 0.01 to 10% by weight, better from 0.05 to 5%, even better from 0.1 to 3% by weight relative to the total weight of the composition.

When present, the total content of oxidation base selected from 2-methoxymethyl-para-phenylenediamine, one of its addition salts, its solvates and/or the solvates of its salts varies preferably from 0.001 to 20% by weight, preferably still from 0.005 to 15% by weight, more preferably from 0.01 to 10% by weight, better from 0.05 to 5%, even better from 0.1 to 3% by weight relative to the total weight of the composition.

The composition according to the invention may optionally further comprise one or more additional oxidation bases, different from 2-β-hydroxyethyl-para-phenylenediamine, 2-(γ-hydroxypropyl)-para-phenylenediamine and 2-methoxymethyl-para-phenylenediamine, their addition salts, their solvates and the solvates of their salts selected from para-phenylenediamines, bis(phenyl)alkylenediamines, para-aminophenols, ortho-aminophenols and heterocyclic bases, their addition salts, their solvates and the solvates of their salts.

Examples of para-phenylenediamines include para-phenylenediamine, para-toluenediamine, 2-chloro-para-phenylenediamine, 2,3-dimethyl-para-phenylenediamine, 2,6-dimethyl-para-phenylenediamine, 2,6-diethyl-para-phenylenediamine, 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(β-hydroxyethyl)-para-phenylenediamine, 4-N,N-bis(β-hydroxyethyl)amino-2-methylaniline, and 4-N,N-bis(β-hydroxyethyl)amino-2-chloroaniline. 2-Fluoro-para-phenylenediamine, 2-Isopropyl-para-phenylenediamine, N-(β-hydroxypropyl)-para-phenylenediamine, 2-Hydroxymethyl-para-phenylenediamine, N,N-Dimethyl-3-methyl-para-phenylenediamine, N-Ethyl-N-(β-hydroxyethyl)-para-phenylenediamine, N-(β,γ-dihydroxypropyl)-para-phenylenediamine, N-(4'-aminophenyl)-para-phenylenediamine, N-Phenyl-para-phenylenediamine, 2-β-Hydroxyethyl-para-phenylenediamine, 2-β-Acetylaminoethyloxy-para-phenylenediamine, N-(β-Methoxyethyl)-para-phenylenediamine, 4-Aminophenylpyrrolidine, 2-Thienyl-para-phenylenediamine, 2-β-hydroxyethylamino-5-aminotoluene and 3-hydroxy-1-(4'-aminophenyl)pyrrolidine and the corresponding addition salts, solvates and/or solvates of their salts.

Examples of bis(phenyl)alkylenediamines include N,N'-bis(β-hydroxyethyl)-N,N'-bis(4'-aminophenyl)-1,3-diaminopropanol, N,N'-bis(β-hydroxyethyl)-N,N'-bis(4'-aminophenyl)ethylenediamine, N,N'-bis(4-aminophenyl)tetramethylenediamine, N,N'-bis(β-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, and 1,8-bis(2,5-diaminophenoxy)-3,6-dioxaoctane, as well as their corresponding addition salts, solvates, and solvents. salts.

Among the para-aminophenols that are mentioned are, for example, para-aminophenol, 4-amino-3-methylphenol, 4-amino-3-fluorophenol, 4-amino-3-chlorophenol, 4-amino-3-hydroxymethylphenol, 4-amino-2-methylphenol, 4-amino-2-hydroxymethylphenol, 4-amino-2-methoxymethylphenol, 4-amino-2-aminomethylphenol, 4-amino-2-(β-hydroxyethylaminomethyl)phenol and 4-amino-2-fluorophenol and the corresponding addition salts, solvates and solvates of the salts.

Among the ortho-aminophenols that can be mentioned are, for example, 2-aminophenol, 2-amino-5-methylphenol, 2-amino-6-methylphenol and 5-acetamido-2-aminophenol and the corresponding addition salts, solvates and solvates of the salts.

Examples of heterocyclic bases that can be mentioned include pyridine, pyrimidine and pyrazole derivatives.

Among the pyridine derivatives that can be mentioned are the compounds described for example in patents GB 1 026 978 and GB 1 153 196, for example 2,5-diaminopyridine, 2-(4-methoxyphenyl)amino-3-aminopyridine and 3,4-diaminopyridine and the corresponding addition salts, solvates and solvates of the salts.

Other pyridine oxidation bases useful in the present invention are the 3-aminopyrazolo[1,5-a]pyridine oxidation bases or the corresponding addition salts described, for example, in French patent application FR 2 801 308. Examples that may be mentioned include pyrazolo[1,5-a]pyrid-3-ylamine, 2-acetylaminopyrazolo[1,5-a]pyrid-3-ylamine, 2-morpholin-4-ylpyrazolo[1,5-a]pyrid-3-ylamine, 3-aminopyrazolo[1,5-a]pyridine-2-carboxylic acid, 2-methoxypyrazolo[1,5-a]pyrid-3-ylamine, (3-aminopyrazolo[1,5-a]pyrid-7-yl)methanol, 2-(3-aminopyrazolo[1,5-a]pyrid-5-yl)ethanol, 2-(3-aminopyrazolo[1,5-a]pyrid-7-yl)ethanol, (3-aminopyrazolo[1,5-a]pyrid-2-yl)methanol, 3,6-diaminopyrazolo[1,5-a]pyridine, 3,4-diaminopyrazolo[1,5-a]pyridine, pyrazolo[1,5-a]pyridine-3,7-diamine, 7-morpholin-4-ylpyrazolo[1,5-a]pyrid-3-ylamine, pyrazolo[1,5-a]pyridine-3,5-diamine, 5-morpholin-4-ylpyrazolo[1,5-a]pyrid-3-ylamine, 2-[(3-aminopyrazolo[1,5-a]pyrid-5-yl)(2-hydroxyethyl)-amino]ethanol, 2-[(3-aminopyrazolo[1,5-a]pyrid-7-yl)(2-hydroxyethyl)amino]ethanol, 3-aminopyrazolo[1,5-a]pyridin-5-ol, 3-aminopyrazolo[1,5-a]pyridin-4-ol, 3-aminopyrazolo[1,5-a]pyridin-6-ol, 3-aminopyrazolo[1,5-a]pyridin-7-ol, 2-β-hydroxyethoxy-3-amino-pyrazolo[1,5-a]pyridine; 2-(4-dimethylpiperazinium-1-yl)-3-amino-pyrazolo[1,5-a]pyridine; and the corresponding addition salts, solvates and solvates of the salts.

More specifically, the oxidation bases that are useful in the present invention are chosen from among the 3 aminopyrazolo-[1,5 a]-pyridines and preferably substituted at carbon atom 2 by:
a) a (di)(C1-C6)(alkyl)amino group, said alkyl group being able to be substituted by at least one hydroxy, amino, imidazolium group;
b) a heterocycloalkyl group containing 5 to 7 members and 1 to 3 heteroatoms, possibly cationic, possibly substituted by one or more (C1-C6)alkyl groups, such as a di(C1-C4)alkylpiperazinium group; or
c) a (C1-C6)alkoxy group possibly substituted by one or more hydroxy groups such as a β-hydroxyalkoxy group and the corresponding addition salts, solvates and solvates of the salts.

Among the pyrimidine derivatives that can be mentioned are the compounds described, for example, in patents 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, the solvates and solvates of the salts and their tautomeric forms, when a tautomeric equilibrium exists.

Among the pyrazole derivatives that can be mentioned are the compounds described in patents DE 3843892, DE 4133957 and patent applications WO 94/08969, WO 94/08970, FR A-2 733 749 and DE 195 43 988, such as 4,5-diamino-1-methylpyrazole, 4,5-diamino-1-(β-hydroxyethyl)pyrazole, 3,4-diaminopyrazole, 4,5-diamino-1-(4'-chlorobenzyl)pyrazole, 4,5-diamino-1,3-dimethylpyrazole, 4,5-diamino-3-methyl-1-phenylpyrazole, 4,5-diamino-1-methyl-3-phenylpyrazole, the 4-amino-1,3-dimethyl-5-hydrazinopyrazole, 1-benzyl-4,5-diamino-3-methylpyrazole, 4,5-diamino-3-tert-butyl-1-methylpyrazole, 4,5-diamino-1-tert-butyl-3-methylpyrazole, 4,5-diamino-1-(β-hydroxyethyl)-3-methylpyrazole, 4,5-diamino-1-ethyl-3-methylpyrazole, 4,5-diamino-1-ethyl-3-(4'-methoxyphenyl)pyrazole, 4,5-diamino-1-ethyl-3-hydroxymethylpyrazole, 4,5-diamino-3-hydroxymethyl-1-methylpyrazole, 4,5-diamino-3-hydroxymethyl-1-isopropylpyrazole, 4,5-Diamino-3-methyl-1-isopropylpyrazole, 4-amino-5-(2'-aminoethyl)amino-1,3-dimethylpyrazole, 3,4,5-triaminopyrazole, 1-methyl-3,4,5-triaminopyrazole, 3,5-diamino-1-methyl-4-methylaminopyrazole, 3,5-diamino-4-(β-hydroxyethyl)amino-1-methylpyrazole and the corresponding addition salts, solvates and solvates of the salts. 4,5-Diamino-1-(β-methoxyethyl)pyrazole may also be used.

A 4,5-diaminopyrazole will be used preferably and even more preferably 4,5-diamino-1-(β-hydroxyethyl)pyrazole and/or a corresponding salt, solvate and/or salt solvate.

Pyrazole derivatives that may also be mentioned include diamino-N,N-dihydropyrazolopyrazolones, and in particular those described in patent application FR-A-2 886 136, such as the following compounds and their corresponding 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-dihydropyrazol-3-one, 4,5-diamino-1,2-diethyl-1,2-dihydropyrazol-3-one, 4,5-diamino-1,2-di-(2-hydroxyethyl)-1,2-dihydropyrazol-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-tetrahydro-1H,6H-pyridazino[1,2-a]pyrazol-1-one, 4-amino-1,2-diethyl-5-(pyrrolidin-1-yl)-1,2-dihydropyrazol-3-one, 4-amino-5-(3-dimethylaminopyrrolidin-1-yl)-1,2-diethyl-1,2-dihydropyrazol-3-one, 2,3-diamino-6-hydroxy-6,7-dihydro-1H,5H-pyrazolo[1,2-a]pyrazol-1-one and the corresponding addition salts, solvates and solvates of the salts.

Preferably, 2,3-diamino-6,7-dihydro-1H,5H-pyrazolo[1,2-a]pyrazol-1-one and/or a corresponding salt, solvate and/or salt solvate will be used.

Preferably, 4,5-diamino-1-(β-hydroxyethyl)pyrazole and/or 2,3-diamino-6,7-dihydro-1H,5H-pyrazolo[1,2-a]pyrazol-1-one and/or 2-β-hydroxyethoxy-3-amino-pyrazolo[1,5-a]pyridine and/or a corresponding salt, solvate and/or salt solvate will be used as heterocyclic bases.

The addition salts of the additional oxidation bases present in the composition according to the invention are in particular selected from addition salts with an acid such as hydrochlorides, hydrobromides, sulfates, citrates, succinates, tartrates, lactates, tosylates, benzenesulfonates, methanesulfonates, phosphates and acetates, and addition salts with a base such as sodium, potassium, ammonia, amines or alkanolamines.

Furthermore, the solvates of the additional oxidation bases represent more specifically the hydrates of said oxidation bases and/or the association of said oxidation bases with a linear or branched alcohol from _C1 to _C4 such as methanol, ethanol, isopropanol, n-propanol. Preferably, the solvates are hydrates.

In a particular embodiment, the composition according to the invention is free from oxidation bases selected from para-phenylenediamine, para-toluenediamine, their addition salts, their solvates, and the solvates of their salts.

When the composition according to the invention comprises one or more additional oxidation bases, the total content of the additional oxidation base(s), other than 2-β-hydroxyethyl-para-phenylenediamine and its addition salts, its solvates and/or the solvates of its salts, 2-(γ-hydroxypropyl)-para-phenylenediamine and its addition salts, its solvates and/or the solvates of its salts, 2-methoxymethyl-para-phenylenediamine and its addition salts, its solvates and/or the solvates of its salts and mixtures thereof, present in the composition according to the invention, varies, preferably, from 0.001 to 20% by weight, more preferably from 0.005 to 15% by weight, better from 0.01 to 10% by weight, even better from 0.05 to 5% by weight, even better from 0.1 at 3% by weight relative to the total weight of the composition.

Ammonium bicarbonate

The composition according to the invention comprises ammonium bicarbonate.

The total ammonium bicarbonate content varies preferably from 0.01% to 20% by weight, preferably from 0.05% to 15% by weight, more preferably from 0.1% to 10% by weight, even more preferably from 0.4% to 5% by weight, better from 0.5% to 4% by weight, better still from 1% to 3% by weight relative to the total weight of the composition.

Additional alkaline agent

The composition according to the invention may include one (or more) alkaline agent(s) in addition to ammonium bicarbonate.

Preferably the composition according to the invention comprises one (or more) additional alkaline agent(s).

Preferably, the additional alkali agent(s) may be chosen from organic and inorganic alkali agents.

Preferably, the organic alkali metal(s) are chosen from among the organic amines whose pKb at 25°C is less than 12, and more preferably less than 10, and even more advantageously less than 6. It should be noted that this is the pKb corresponding to the highest basicity functional group. Furthermore, the organic amines do not contain a fatty, alkyl, or alkenyl chain comprising more than ten carbon atoms.

The organic alkali agent(s) are preferably chosen from among the alkanolamines in particular mono-, di- or tri-hydroxy(C1-C6)alkylamines such as 2-amino-2-methylpropanol, monoethanolamine, oxyethylenated and/or oxypropylenated ethylenediamines, amino acids, polyamines and mixtures thereof.

Alkanolamine is defined as an organic amine comprising a primary, secondary or tertiary amine function, and one or more alkyl groups, linear or branched, in C1 to C8 bearing one or more hydroxy radicals.

Examples of such compounds include monoethanolamine (MEA), diethanolamine, triethanolamine, monoisopropanolamine, diisopropanolamine, N,N-dimethylethanolamine, 2-amino-2-methyl-1-propanol, triisopropanolamine, 2-amino-2-methyl-1,3-propanediol, 3-amino-1,2-propanediol, 3-dimethylamino-1,2-propanediol, and tris-hydroxymethylaminomethane.

More specifically, the usable amino acids are of natural or synthetic origin, in their L, D, or racemic forms, and contain at least one acidic functional group, most notably carboxylic, sulfonic, phosphonic, or phosphoric acid groups. Amino acids may be in neutral or ionic form.

Examples of amino acids that can be used in the present invention include 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.

Among the inorganic alkali agents that can be used in the composition according to the invention, ammonium hydroxide (also called ammonia), mineral hydroxides, silicates, metasilicates, phosphates, hydrogen phosphates, and in particular alkali metal silicates or metasilicates, especially sodium silicate and sodium metasilicate.

Among the mineral hydroxides, sodium hydroxide, potassium hydroxide or mixtures thereof will be used preferably, preferably sodium hydroxide.

Preferably, the additional alkali agent(s) is (or are) chosen from ammonium hydroxide, alkanolamines, alkali metal silicates and metasilicates, mineral hydroxides and mixtures thereof, more preferably chosen from ammonium hydroxide, alkanolamines and mixtures thereof, better chosen from ammonium hydroxide, monoethanolamine and mixtures thereof.

Even more preferentially, the additional alkaline agent is ammonium hydroxide.

Advantageously, the total content of the additional alkaline agent(s) ranges from 0.01 to 20% by weight, preferably from 0.1 to 15% by weight, more preferably from 0.5 to 10% by weight, more preferably still from 1 to 7% by weight relative to the total weight of the composition.

Fatty acid

The composition according to the invention may comprise one or more fatty acids.

Preferably the composition according to the invention comprises one or more fatty acids.

By "fatty acids" is meant a long-chain carboxylic acid, in particular an alkyl chain, linear or branched, saturated or unsaturated, comprising from 6 to 40 carbon atoms, preferably from 8 to 30 carbon atoms, more preferably from 10 to 30 carbon atoms and better from 14 to 22 carbon atoms.

Preferably, fatty acids comprise at least one carboxylic acid group and one alkyl chain, linear or branched, saturated or unsaturated, in particular saturated, comprising from 10 to 30 carbon atoms, in particular from 14 to 22 carbon atoms .

More preferably, the fatty acids according to the invention are chosen from compounds of structure R-C(O)OH in which R represents an alkyl group, linear or branched, saturated or unsaturated, in particular saturated, comprising from 6 to 40 carbon atoms, preferably from 8 to 30 carbon atoms, preferably from 12 to 24 carbon atoms, better from 14 to 20 carbon atoms.

For the purposes of the present invention, the fatty acids present in the composition are neither oxyalkylated nor glycerolated.

Fatty acids can be chosen from solid fatty acids, liquid fatty acids, and mixtures thereof.

For the purposes of this invention, "solid fatty acid" means a fatty acid having a melting point above 25°C, preferably above or equal to 28°C, more preferably above or equal to 30°C at atmospheric pressure (1.013.105 Pa).

The solid fatty acids used in the present invention are in particular selected from myristic acid, cetyl acid, stearylic acid, palmitic acid, arachidic acid, stearic acid, lauric acid, behenic acid, 12-hydroxystearic acid, and mixtures thereof, preferably selected from palmitic acid, lauric acid, myristic acid, stearic acid, and mixtures thereof, better selected from palmitic acid, myristic acid, stearic acid, and mixtures thereof.

For the purposes of this invention, "liquid fatty acid" means a fatty acid having a melting point of less than or equal to 25°C, preferably less than or equal to 20°C at atmospheric pressure (1.013.105 Pa).

The liquid fatty acid(s) according to the invention can be chosen from oleic acid, linoleic acid, arachidonic acid and mixtures thereof, preferably oleic acid.

Preferably, the fatty acid(s) present in the composition according to the invention are chosen from fatty acids comprising at least one carboxylic acid group and an alkyl chain, linear or branched, saturated or unsaturated, comprising from 10 to 30 carbon atoms, in particular from 14 to 22 carbon atoms.

According to a preferred embodiment, the fatty acid(s) present in the composition according to the invention are chosen from solid fatty acids, preferably chosen from palmitic acid, lauric acid, myristic acid, stearic acid, and mixtures thereof.

Preferably, the fatty acid(s) are chosen from myristic acid, palmitic acid, stearic acid, and mixtures thereof.

The fatty acid(s), preferably solid, are generally present in a total content ranging from 0.01 to 10% by weight, preferably from 0.05 to 5%, preferably from 0.1 to 1% by weight, better from 0.2 to 0.5% by weight relative to the total weight of the composition.

Fats different from fatty acids

The composition according to the invention may comprise one or more fats different from fatty acids.

Preferably the composition according to the invention comprises one or more fats different from fatty acids.

The term "fats " refers to an organic compound insoluble in water at 25°C and atmospheric pressure (1.013 x 10⁵ Pa) (solubility less than 5% by weight, and preferably less than 1% by weight, and even more preferably less than 0.1% by weight). Their structure must include at least one hydrocarbon chain with at least six carbon atoms and/or a chain of at least two siloxane groups. Furthermore, fats are generally soluble in organic solvents under the same temperature and pressure conditions, such as chloroform, dichloromethane, carbon tetrachloride, ethanol, benzene, toluene, tetrahydrofuran (THF), petrolatum, or decamethylcyclopentasiloxane.

The fats usable in the present invention are neither (poly)oxyalkylated nor (poly)glycerolated.

Preferably, the useful fats according to the invention are non-siliconized.

The term "non-siliconized fat" refers to a fat that does not contain Si-O bonds, and "siliconized fat" refers to a fat that contains at least one Si-O bond.

The fats used according to the invention can be liquid fats (or oils) and/or solid fats. Liquid fats are defined as fats having a melting point of 25°C or less at atmospheric pressure (1.013 x 10⁵ Pa), and solid fats are defined as fats having a melting point above 25°C at atmospheric pressure (1.013 x 10⁵ Pa).

For the purposes of this invention, the melting point corresponds to the temperature of the most endothermic peak observed in thermal analysis (differential scanning calorimetry or DSC) as described in ISO 11357-3; 1999. The melting point can be measured using a differential scanning calorimeter (DSC), for example, the calorimeter sold under the name "MDSC 2920" by TA Instruments. In this application, all melting points are determined at atmospheric pressure (1.013 x 10⁵ Pa).

More specifically, the liquid fat(s) may be chosen from liquid hydrocarbons comprising more than 6 carbon atoms, non-siliconized oils of animal origin, triglyceride-type oils of vegetable or synthetic origin, fluorinated oils, liquid fatty alcohols, liquid esters of fatty acids and/or fatty alcohols other than triglycerides and their mixtures.

It is recalled that alcohols and fatty esters have, in particular, at least one hydrocarbon group, linear or branched, saturated or unsaturated, comprising from 6 to 40, preferably from 8 to 30 carbon atoms, possibly substituted, in particular by one or more hydroxyl groups (in particular 1 to 4). If they are unsaturated, these compounds may contain one to three carbon-carbon double bonds, conjugated or not.

As an example, liquid hydrocarbons containing more than 6 carbon atoms can be chosen from among liquid hydrocarbons with a carbon atoms ranging from _C6 to _C16 . These can be linear, branched, possibly cyclic, and preferably saturated. Examples include hexane, cyclohexane, undecane, dodecane, isododecane, tridecane, isoparaffins such as isohexadecane and isodecane, and mixtures thereof.

Liquid hydrocarbons comprising more than 6 carbon atoms may also be chosen from liquid hydrocarbons comprising more than 16 carbon atoms, linear or branched, of mineral or synthetic origin, and are preferably chosen from paraffin or petrolatum (or mineral oil) oils, polydecenes, hydrogenated polyisobutene such as Parleam®, and mixtures thereof.

Liquid hydrocarbons containing more than 6 carbon atoms can also be chosen from mixtures of alkanes having from 8 to 28 carbon atoms, more particularly from 15 to 28 carbon atoms, we can cite mixtures whose INCI names are for example the following: C15-19 Alkane, C18-C21 Alkane, C21-C28 Alkane, such as for example the products Gemseal 40, Gemseal 60, Gemseal 120 marketed by Total, Emogreen L19 marketed by SEPPIC, Emogreen L15 marketed by SEPPIC, more particularly Emogreen L19 marketed by SEPPIC.

Perhydrosqualene is one example of hydrocarbon oils of animal origin.

Triglyceride oils of vegetable or synthetic origin are preferably chosen from among the liquid triglycerides of fatty acids containing 6 to 30 carbon atoms such as the triglycerides of heptanoic or octanoic acid or, for example, sunflower, corn, soybean, pumpkin, grapeseed, sesame, hazelnut, apricot, macadamia, arara, sunflower, castor, avocado oils, caprylic/capric acid triglycerides 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, and their mixtures.

Liquid fatty alcohols suitable for implementing the invention are particularly selected from saturated or unsaturated, linear or branched alcohols, preferably unsaturated or branched, comprising from 6 to 40 carbon atoms, preferably from 8 to 30 carbon atoms. These fatty alcohols are neither oxyalkylated nor glycerolated. Examples include octyldodecanol, 2-butyloctanol, 2-hexyldecanol, 2-undecylpentadecanol, isostearyl alcohol, oleic alcohol, linolenic alcohol, ricinoleic alcohol, undecylenic alcohol, and linoleic alcohol, and mixtures thereof. Preferably, oleic alcohol is used.

With regard to liquid esters of fatty acids and/or fatty alcohols, other than the triglycerides mentioned previously, we may mention in particular the esters of saturated or unsaturated mono- or poly-aliphatic acids, linear in C1 to C26 or branched in C3 to C26 and of saturated or unsaturated mono- or poly-aliphatic alcohols, linear in C1 to C26 or branched in C3 to C26, the total number of carbons of the esters being greater than or equal to 6, more advantageously greater than or equal to 10.

Preferably, for monoalcohol esters, at least one of the alcohol or acid is branched.

Among the monoesters, we can mention dihydroabietyl behenate; octyldodecyl behenate; isocetyl behenate; isostearyl lactate; lauryl lactate; linoleyl lactate; oleyl lactate; isostearyl octanoate; isocetyl octanoate; octyl octanoate; decyl oleate; isocetyl isostearate; isocetyl laurate; isocetyl stearate; isodecyl octanoate; isodecyl oleate; isononyl isononanoate; isostearyl palmitate; methyl acetyl ricinoleate; octyl isononanoate; 2-Ethylhexyl isononate; octyldodecyl erucate; oleyl erucate; ethyl and isopropyl palmitates, such as ethyl-2-hexyl palmitate, 2-octyldodecyl palmitate; alkyl myristates such as 2-octyldodecyl isopropyl myristate; isobutyl stearate; 2-hexyldodecyl laurate, and mixtures thereof.

We can also use esters of di- or tricarboxylic acids in C4 to C22 and of alcohols in C1 to C22 and esters of mono-, di-, or tricarboxylic acids and di-, tri-, tetra- or pentahydroxy alcohols in C2 to C26.

Examples include: diethyl sebacate; diisopropyl sebacate; diisopropyl adipate; din-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; polyethylene glycol distearates, and mixtures thereof.

The composition may also include, as fatty acid esters, esters and diesters of sugars of fatty acids ranging from C6 to C30, preferably from C12 to C22. It should be noted that the term "sugar" refers to oxygenated hydrocarbon compounds possessing multiple alcohol groups, with or without aldehyde or ketone groups, and comprising at least four carbon atoms. These sugars may be monosaccharides, oligosaccharides, or polysaccharides other than the anionic polysaccharides described previously.

Suitable sugars include, for example, sucrose (or saccharose), glucose, galactose, ribose, fucose, maltose, fructose, mannose, arabinose, xylose, lactose, and their derivatives, particularly alkylated ones, such as methylated derivatives like methylglucose.

Sugar and fatty acid esters may be selected, in particular, from the group comprising the esters or mixtures of sugar esters described above and fatty acids in the C6 to C30 range, preferably in the C12 to C22 range, linear or branched, saturated or unsaturated. If unsaturated, these compounds may contain one to three carbon-carbon double bonds, conjugated or not.

Esters can also be chosen from mono-, di-, tri- and tetra-esters, polyesters and their mixtures.

These esters can be, for example, oleate, laurate, palmitate, myristate, behenate, cocoate, stearate, linoleate, linolenate, caprate, arachidonate, or mixtures thereof, such as mixed oleo-palmitate, oleo-stearate, palmito-stearate esters.

In particular, mono- and di- esters are used, including mono- or di- oleate, stearate, behenate, oleopalmitate, linoleate, linolenate, oleostearate, of sucrose, glucose or methylglucose, and mixtures thereof.

One example is the product sold under the name Glucate® DO by the company Amerchol, which is a methylglucose dioleate.

Preferably, a liquid ester of a monoacid and a monoalcohol will be used.

According to one embodiment, fats other than fatty acids are chosen from liquid fats, preferably from liquid hydrocarbons comprising more than 6 carbon atoms, vegetable oils, liquid fatty alcohols and liquid fatty esters and mixtures thereof, more preferably from liquid hydrocarbons comprising more than 6 carbon atoms, better from paraffin or petrolatum (or mineral oil) oils, mixtures of alkanes having from 8 to 28 carbon atoms, more particularly from 15 to 28 carbon atoms, and mixtures thereof, better still from mixtures of alkanes having from 8 to 28 carbon atoms, more particularly from 15 to 28 carbon atoms.

Solid fats preferably have a viscosity greater than 2 Pa.s, measured at 25°C and at a shear rate of 1 s-1.

The solid fat(s) are preferably chosen from solid fatty alcohols, solid esters of fatty acids and/or fatty alcohols, waxes, ceramides and mixtures thereof.

By "fatty alcohol" is meant a long-chain aliphatic alcohol comprising 6 to 40 carbon atoms, preferably 8 to 30 carbon atoms, and comprising at least one hydroxyl group OH. These fatty alcohols are neither oxyalkylated nor glycerolated.

The solid fatty alcohols that may be used may be chosen from, alone or in mixture: myristic or myristyl alcohol (or 1-tetradecanol); cetyl alcohol (or 1-hexadecanol); stearyl alcohol (or 1-octadecanol); arachidyl alcohol (or 1-eicosanol); behenyl alcohol (or 1-docosanol); lignoceryl alcohol (or 1-tetracosanol); ceryl alcohol (or 1-hexacosanol); montanyyl alcohol (or 1-octacosanol); myricyl alcohol (or 1-triacontanol).

Preferably, the solid fatty alcohol is chosen from cetyl alcohol, stearyl alcohol, behenyl alcohol, myristic alcohol, arachidic alcohol, and mixtures thereof, such as cetostearyl or cetearyl alcohol. Particularly preferred, the solid fatty alcohol is chosen from cetyl alcohol, stearyl alcohol, and mixtures thereof, such as cetostearyl or cetearyl alcohol.

The solid fatty acid and/or fatty alcohol esters that may be used are preferably chosen from esters derived from C9-C26 carboxylic fatty acids and/or C9-C26 fatty alcohols.

Examples include octyldodecyl behenate, isocetyl behenate, cetyl lactate, stearyl octanoate, octyl octanoate, cetyl octanoate, decyl oleate, hexyl stearate, octyl stearate, myristyle stearate, cetyl stearate, stearyl stearate, octyl pelargonate, cetyl myristate, myristyle myristate, stearyl myristate, diethyl sebacate, diisopropyl sebacate, diisopropyl adipate, din-propyl adipate, dioctyl adipate, dioctyl maleate, Octyl palmitate, myristyle palmitate, cetyl palmitate, stearyl palmitate, and mixtures thereof.

A wax, as defined in the present invention, is a lipophilic compound, solid at 25°C and atmospheric pressure, with a reversible solid/liquid phase change, a melting point above approximately 40°C and up to 200°C, and an anisotropic crystalline structure in the solid state. Generally, the size of the wax crystals is such that they diffract and/or scatter light, giving the composition a cloudy, more or less opaque appearance. By heating the wax to its melting point, it can be made miscible with oils and form a microscopically homogeneous mixture. However, upon lowering the mixture to room temperature, the wax recrystallizes, a phenomenon detectable both microscopically and macroscopically (opalescence).

In particular, waxes suitable for the invention can be chosen from waxes of animal, vegetable, mineral origin, non-siliconized synthetic waxes and mixtures thereof.

Examples include hydrocarbon waxes, such as beeswax, particularly of biological origin, lanolin wax, and insect waxes from China; rice bran wax, carnauba wax, candelilla wax, Ouricury wax, alfa wax, berry wax, shellac wax, Japanese wax and sumac wax; Montan wax, orange and lemon waxes, microcrystalline waxes, paraffins and ozokerite; polyethylene waxes, waxes obtained by Fisher-Tropsch synthesis and waxy copolymers, as well as their esters.

We can also mention microcrystalline waxes in C20 to C60, such as Microwax HW.

We can also mention PM 500 polyethylene wax marketed under the reference Permalen 50-L polyethylene.

We can also mention waxes obtained by catalytic hydrogenation of animal or vegetable oils having linear or branched fatty chains, in C8 to C32. Among these, we can notably mention isomerized jojoba oil, such as trans isomerized partially hydrogenated jojoba oil, in particular that manufactured or marketed by the company Desert Whale under the trade reference Iso-Jojoba-50®, hydrogenated sunflower oil, hydrogenated castor oil, hydrogenated coconut oil, hydrogenated lanolin oil, and di-(trimethylol-1,1,1 propane tetrastearate), in particular that sold under the name Hest 2T-4S® by the company HETERENE.

Waxes obtained by hydrogenation of esterified castor oil with cetyl alcohol can also be used, such as those sold under the names Phytowax ricin 16L64® and 22L73® by the company SOPHIM.

As a wax, one can also use a C20 to C40 alkyl (hydroxystearyloxy)stearate (the alkyl group comprising 20 to 40 carbon atoms), alone or in a mixture. Such a wax is notably sold under the names "Kester Wax K 82 P®", "Hydroxypolyester K 82 P®" and "Kester Wax K 80 P®" by the company KOSTER KEUNEN.

It is also possible to use microwaxes in the compositions of the invention; Examples include carnauba microwaxes, such as the one marketed under the name MicroCare 350® by MICRO POWDERS; synthetic wax microwaxes, such as the one marketed under the name MicroEase 114S® by MICRO POWDERS; microwaxes made from a mixture of carnauba wax and polyethylene wax, such as those marketed under the names Micro Care 300® and 310® by MICRO POWDERS; microwaxes made from a mixture of carnauba wax and synthetic wax, such as the one marketed under the name Micro Care 325® by MICRO POWDERS; polyethylene microwaxes, such as those marketed under the names Micropoly 200®, 220®, 220L® and 250S® by MICRO POWDERS; and polytetrafluoroethylene microwaxes, such as those marketed under the names Microslip 519® and 519 L® by the company MICRO POWDERS.

Waxes are preferably chosen from mineral waxes such as paraffin wax, petroleum jelly, lignite or ozokerite; vegetable waxes such as cocoa butter or waxes from cork or sugar cane fibers, olive wax, rice wax, hydrogenated jojoba wax, Ouricoury wax, carnauba wax, candelilla wax, esparto grass wax, or absolute flower waxes such as blackcurrant flower essential wax sold by the BERTIN company (France); waxes of animal origin such as beeswax or modified beeswax (cerabellina), spermaceti, lanolin wax and lanolin derivatives; microcrystalline waxes; and their mixtures, preferably from vegetable waxes such as carnauba wax and candelilla wax, and more preferably candelilla wax (INCI name euphorbia cerifera wax). Solid fats are preferably chosen from solid fatty alcohols, waxes and their mixtures, in particular from cetyl alcohol, stearyl alcohol and their mixtures such as cetylstearyl or cetearyl alcohol.

According to a preferred embodiment, the fat(s) other than fatty acids is/are chosen from liquid hydrocarbons comprising more than 6 carbon atoms, vegetable oils, fatty alcohols, liquid fatty esters, waxes and mixtures thereof, more preferably from solid fatty alcohols, vegetable waxes, mixtures of alkanes having from 8 to 28 carbon atoms, and mixtures thereof, better chosen from C15-19 Alkane (INCI name), cetearyl alcohol, Candelilla wax and mixtures thereof.

The total content of the fat(s) other than fatty acids varies, preferably, from 5 to 35% by weight, more preferably from 7 to 30% by weight, and better from 8 to 25% by weight, relative to the total weight of the composition.

In a particular embodiment, when the composition according to the invention comprises one or more solid fats other than fatty acids, the total content of the solid fat(s) other than fatty acids varies preferably from 5 to 30% by weight, more preferably from 6 to 25% by weight, and better from 7 to 20% by weight, relative to the total weight of the composition.

In another particular embodiment, the composition according to the invention comprises one or more hydrocarbons comprising more than 6 carbon atoms, the total content of the hydrocarbon(s) comprising more than 6 carbon atoms varies, preferably, from 0.01 to 15% by weight, more preferably from 0.05 to 10% by weight, and better still from 0.1 to 5% by weight, even better from 0.5 to 4% by weight relative to the total weight of the composition.

Oxidation couplers

The composition according to the invention may also include at least one oxidation coupler.

Preferably, the composition according to the invention comprises one or more couplers.

Among the useful couplers according to the invention, we can in particular mention meta-phenylenediamines, meta-aminophenols, meta-diphenols, naphthalene-based coupling agents and heterocyclic coupling agents as well as the corresponding addition salts, solvates and solvates of their salts.

Examples include 6-hydroxybenzomorpholine, 3,4-hydroxyethylmethylenedioxyaniline, 2-amino-5-ethylphenol, 1,3-dihydroxybenzene, 1,3-dihydroxy-2-methylbenzene, 4-chloro-1,3-dihydroxybenzene, 2,4-diamino-1-(β-hydroxyethyloxy)benzene, 2-amino-4-(β-hydroxyethylamino)-1-methoxybenzene, 1,3-diaminobenzene, 1,3-bis(2,4-diaminophenoxy)propane, 3-ureidoaniline, 3-ureido-1-dimethylaminobenzene, sesamol, α-naphtol, 2-methyl-1-naphtol, 6-hydroxyindole, 4-hydroxyindole, 4-hydroxy-N-methylindole, and 2-Amino-3-hydroxypyridine, 3,5-diamino-2,6-dimethoxypyridine, 2,6-bis(β-hydroxyethylamino)toluene, 6-hydroxyindoline, 2,6-dihydroxy-4-methylpyridine, 1-H-3-methylpyrazol-5-one, 1-phenyl-3-methylpyrazol-5-one, 2,6-dimethylpyrazolo[1,5-b]-1,2,4-triazole, 2,6-dimethyl[3,2-c]-1,2,4-triazole and 6-methylpyrazolo[1,5-a]benzimidazole, 2-methyl-5-aminophenol, 5-N-(β-hydroxyethyl)amino-2-methylphenol, 3-aminophenol, 3-amino-2-chloro-6-methylphenol, the corresponding addition salts, the solvates, the solvates of salts and the corresponding mixtures.

Preferably the coupler(s) is/are chosen from: 6-hydroxybenzomorpholine, its addition salts, its solvates and/or the solvates of its salts, hydroxyethyl-3-4-methylenedioxyaniline, its addition salts, its solvates and/or the solvates of its salts, 2-amino 5-ethylphenol, its addition salts, its solvates and/or the solvates of its salts and mixtures thereof.

In general, the addition salts of the couplers that can be used in the context of the invention are in particular chosen from addition salts with an acid, such as hydrochlorides, hydrobromides, sulfates, citrates, succinates, tartrates, lactates, tosylates, benzenesulfonates, phosphates and acetates and addition salts with a base such as sodium hydroxide, potassium hydroxide, ammonia, amines or alkanolamines.

Furthermore, solvates more specifically represent the hydrates of these couplers and/or the association of these couplers with a linear or branched alcohol at C1 to C4 such as methanol, ethanol, isopropanol, n-propanol. Preferably, the solvates are hydrates.

In a preferred embodiment, the composition according to the invention is free from oxidation couplers selected from resorcinol, 2-methyl resorcinol, 4-chloro resorcinol, their addition salts, their solvates, and the solvates of their salts.

When the composition includes one or more oxidation couplers, the total content of the coupler(s), their salts, their solvates and the solvates of their salts present in the composition according to the invention varies from 0.001 to 20% by weight, more preferably from 0.005 to 15% by weight, better from 0.01 to 10% by weight, even better from 0.05 to 5% by weight, even better from 0.1 to 3% by weight relative to the total weight of the composition.

When present, the total content of the couplers chosen from 6-hydroxybenzomorpholine, hydroxyethyl-3,4-methylenedioxyaniline, 2-amino 5-ethylphenol, and their additive salts, their solvates and/or the solvates of their salts varies preferably from 0.001 to 20% by weight, more preferably from 0.005 to 15% by weight, better from 0.01 to 10% by weight, even better from 0.05 to 5% by weight, even better from 0.1 to 3% by weight relative to the total weight of the composition.

When present, the total content of the couplers selected from 6-hydroxybenzomorpholine, its addition salts, its solvates and/or the solvates of its salts, as well as their additive salts, their solvates and/or the solvates of their salts varies preferably from 0.001 to 20% by weight, more preferably from 0.005 to 15% by weight, better from 0.01 to 10% by weight, even better from 0.05 to 5% by weight, even better from 0.1 to 3% by weight relative to the total weight of the composition.

When present, the total content of the couplers selected from hydroxyethyl-3,4-methylenedioxyaniline, its addition salts, its solvates and/or the solvates of its salts, as well as their additive salts, their solvates and/or the solvates of their salts varies preferably from 0.001 to 20% by weight, more preferably from 0.005 to 15% by weight, better from 0.01 to 10% by weight, even better from 0.05 to 5% by weight, even better from 0.1 to 3% by weight relative to the total weight of the composition.

When present, the total content of the couplers selected from 2-amino 5-ethylphenol, its addition salts, its solvates and/or the solvates of its salts, as well as their additive salts, their solvates and/or the solvates of their salts varies preferably from 0.001 to 20% by weight, more preferably from 0.005 to 15% by weight, better from 0.01 to 10% by weight, even better from 0.05 to 5% by weight, even better from 0.1 to 3% by weight relative to the total weight of the composition.

Additional surfactants

The composition according to the present invention may include one (or more) additional surfactant(s), generally different from fatty acids.

According to a preferred embodiment, the composition includes one (or more) additional surfactant(s).

These can be chosen from anionic surfactants other than fatty acids, non-ionic surfactants, cationic surfactants, amphoteric surfactants and/or mixtures thereof.

According to a preferred embodiment, the additional surfactants are non-ionic surfactants.

Examples of non-ionic surfactants include the following:
- alkyl(C8-C24)oxyalkylened phenols;
- alcohols in the C8 to C40 range, saturated or unsaturated, linear or branched, oxyalkylated or glycerolated, preferably oxyalkylated, they preferably have one or two fatty chains;
- C8 to C30 fatty acid amides, saturated or unsaturated, linear or branched, oxyalkylated;
- esters of C8 to C30 acids, saturated or unsaturated, linear or branched, and of polyethylene glycols;
- esters of C8 to C30 acids, saturated or unsaturated, linear or branched, and of sorbitol, preferably oxygenated;
- fatty acid and sucrose esters;
- alkyl(C8-C30)(poly)glucosides, alkenyl(C8-C30)(poly)glucosides, possibly oxyalkylated (0 to 10 oxyalkylated motifs) and comprising 1 to 15 glucose motifs, alkyl (C8-C30)(poly)glucoside esters;
- oxyethylenated vegetable oils, saturated or unsaturated;
- ethylene oxide and/or propylene oxide condensates;
- N-alkyl(C8-C30)glucamine and N-acyl(C8-C30)-methylglucamine derivatives;
- aldobionamides;
- amine oxides;
- oxyethylenated and/or oxypropylenated silicones;
- and their mixtures.

Oxyalkylated motifs are more specifically oxyethylated, oxypropylated motifs, or their combination, preferably oxyethylated.

The number of moles of ethylene oxide and/or propylene preferably ranges from 1 to 250, more particularly from 2 to 100; better from 2 to 50, better still from 2 to 40; the number of moles of glycerol ranges in particular from 1 to 50, better from 1 to 10.

As an example of non-ionic glycerolated surfactants, C8 to C40 alcohols, mono- or polyglycerolated, comprising 1 to 50 moles of glycerol, preferably 1 to 10 moles of glycerol, are preferably used.

Examples of compounds of this type include lauryl alcohol with 4 moles of glycerol (INCI name: POLYGLYCERYL-4 LAURYL ETHER), lauryl alcohol with 1.5 moles of glycerol, oleyl alcohol with 4 moles of glycerol (INCI name: POLYGLYCERYL-4 OLEYL ETHER), oleyl 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.

Among glycerol alcohols, C8-C10 alcohol with one mole of glycerol, C10-C12 alcohol with one mole of glycerol, and C12 alcohol with 1.5 moles of glycerol are particularly preferred.

More preferably, the non-ionic surfactant(s) used in the composition according to the invention are chosen from:
- alcohols in the range of C8 to C40, preferably in C10-C32, more preferably in C12-C28, saturated or unsaturated, linear or branched, oxyethylenated or oxypropylenated or glycerolated, preferably oxyethylenated or oxypropylenated;
- alkyl(C8-C30)(poly)glucosides, possibly oxyalkylated and comprising 1 to 15 glucose motifs;
- and their mixture.

According to a preferred embodiment, the additional surfactants are preferably chosen from non-ionic surfactants, more preferably from _C8 - _C40 alcohols, saturated or unsaturated, linear or branched, oxyethylenated or oxypropylenated, comprising from 1 to 100 moles of ethylene or propylene oxide, preferably from 2 to 50, more particularly from 2 to 40 moles, and comprising at least one _C8 - _{C20 alkyl chain.}

Preferably, the additional surfactant(s) represent from 0.01 to 20% by weight, preferably from 0.1 to 15% by weight, and more preferably from 0.5 to 10% by weight, better from 0.8 to 6% by weight, better still from 1 to 5% by weight relative to the total weight of the composition.

Sequestrators

The composition according to the invention may include at least one sequestering (or chelating) agent.

The definition of a "sequestering agent" (or "chelating agent") is well known to those skilled in the art and refers to a compound or mixture of compounds capable of forming a chelate with a metal ion. A chelate is an inorganic complex in which a compound (the sequestering or chelating agent) is coordinated to a metal ion, that is, it forms one or more bonds with the metal ion (forming a ring that includes the metal ion).

A sequestering (or chelating) agent generally comprises at least two electron-donating atoms that allow the formation of bonds with the metal ion.

Within the framework of the present invention, the sequestering agent(s) may be chosen from carboxylic acids, preferably aminocarboxylic acids, phosphonic acids, preferably aminophosphonic acids, polyphosphoric acids, preferably linear polyphosphoric acids, their salts and derivatives.

The salts include salts of alkali metals, alkaline earths, ammonium and substituted ammonium.

Examples of polyphosphoric acid-based chelating agents include the following compounds: sodium tripolyphosphate (STP), tetrasodium diphosphate, hexametaphophoric acid, sodium metaphosphate, phytic acid.

According to the present invention, the sequestering agents are preferably chosen from diethylenetriamine pentaacetic acid (DTPA) and its salts, diethylenediamine tetraacetic acid (EDTA) and its salts, ethylenediamine disuccinic acid (EDDS) and its salts, etidronic acid and its salts, N,N-dicarboxymethyl glutamic acid and its salts (GLDA) and mixtures thereof.

Preferably, the sequestering agent(s) are chosen from N,N-dicarboxymethyl glutamic acid and its salts (GLDA) and their mixtures.

Among the salts of these compounds, alkali metal salts are preferred, and in particular sodium or potassium salts.

When the composition includes one or more sequestrants, the total content of the sequestrant(s) varies preferably from 0.001 to 15% by weight, preferably from 0.005 to 10% by weight, more preferably from 0.01 to 8% by weight, better from 0.05 to 5% by weight, better still from 0.1 to 2% by weight relative to the total weight of the composition.

According to a particular embodiment, the composition according to the invention comprises:
- at least one oxidation base chosen from 2-β-hydroxyethyl-para-phenylenediamine and its addition salts, its solvates and/or the solvates of its salts, 2-(γ-hydroxypropyl)-para-phenylenediamine and its addition salts, its solvates and/or the solvates of its salts, 2-methoxymethyl-para-phenylenediamine and its addition salts, its solvates and/or the solvates of its salts and their mixture;
- ammonium bicarbonate;
- at least one additional alkaline agent;
- at least one fatty acid;
- at least one fat other than fatty acids preferably chosen from liquid hydrocarbons comprising more than 6 carbon atoms, vegetable oils, fatty alcohols and liquid fatty esters, waxes, and mixtures thereof;
- at least one coupler, preferably chosen from 6-hydroxybenzomorpholine, its addition salts, its solvates and/or the solvates of its salts, hydroxyethyl-3-4-methylenedioxyaniline, its addition salts, its solvates and/or the solvates of its salts, 2-amino 5-ethylphenol, its addition salts, its solvates and/or the solvates of its salts and mixtures thereof;
- at least one additional surfactant, preferably chosen from non-ionic surfactants, more preferably chosen from C alcohols₈to C₄₀saturated or unsaturated, linear or branched, oxyethylenated or oxypropylenated, comprising from 1 to 100 moles of ethylene or propylene oxide, preferably from 2 to 50, more particularly from 2 to 40 moles, and comprising at least one C-alkyl chain₈-C₂₀
- at least one sequestrant, preferably chosen from N,N-dicarboxymethyl glutamic acid and its salts (GLDA).

Solvents

The composition according to the invention may also include at least one organic solvent.

Examples of organic solvents include linear or branched _C2 to _C4 alkanols such as ethanol, propanol and isopropanol; polyols and polyol ethers such as 2-butoxyethanol, propylene glycol, glycerol, 1,3-propanediol, dipropylene glycol, propylene glycol monomethyl ether, diethylene glycol monoethyl ether and monomethyl ether, as well as aromatic alcohols or ethers such as benzyl alcohol or phenoxyethanol, and mixtures thereof.

Preferably, the organic solvent(s) is/are chosen from polyols, more preferably from propylene glycol, glycerol, propane-1,3-diol and mixtures thereof.

The organic solvent(s) may be present in a total quantity ranging from 0.01 to 30% by weight, preferably ranging from 0.1 to 25% by weight, better from 0.5 to 20% by weight, even better from 1 to 15% by weight relative to the total weight of the composition.

Furthermore, the composition according to the invention is preferably an aqueous composition. Preferably, the composition comprises water in an amount greater than or equal to 5% by weight, preferably greater than or equal to 10% by weight, better greater than or equal to 15% by weight relative to the total weight of the composition.

The composition according to the invention may further comprise one or more nonionic polyoxyalkylated fatty alcohol ether(s) of the following formula (I):

R-(O-Alk)n–OR’ (I),

in which:
R denotes a hydrocarbon radical, linear or branched, saturated or unsaturated, in C10-C30,
R' denotes a hydrocarbon radical, linear or branched, saturated or unsaturated, in the C10-C30 range, which can be substituted by a hydroxyl radical, said hydroxyl radical being preferably located in the beta position of the ether function and
n is an integer between 1 and 100 inclusive
Alk represents a (C1-C6) alkylene group, linear or branched, preferably linear such as ethylene or propylene, preferably ethylene.

According to a particularly advantageous embodiment of the invention, the Alk radical of formula (I) represents a –CH2-CH2- group

More particularly, the nonionic polyoxyalkylated fatty alcohol ether of formula (I) is such that R and R’, independently of each other, denote a hydrocarbon radical, linear or branched, preferably linear, saturated or unsaturated, preferably saturated; in C12-C20, preferably in C14-C18; R’ being able to be substituted by at least one hydroxyl radical, said hydroxyl radical being preferably located in the beta position of the ether function and n denotes an integer greater than or equal to 20, for example from 20 to 100, preferably from 40 to 80.

Preferably R and R’ denote an alkyl radical.

According to a more preferred embodiment, the nonionic polyoxyalkylened fatty alcohol ether of formula (I) is such that: R denotes an alkyl radical, preferably linear, in C16-C18, and R' denotes an alkyl radical, preferably linear, in C14 substituted by an OH group, said hydroxyl radical being preferably located in the beta position of the ether function and n is equal to 60.

Preferably the nonionic compound of formula (I) has the following formula

with R being a cetyl or stearyl group with n = 60.

Such a compound is listed in the CTFA Dictionary as CETEARETH 60 MYRISTYL GLYCOL or HYDROGENATED TALLOWETH 60 MYRISTYL GLYCOL. For example, CETEARETH 60 MYRISTYL GLYCOL is sold by AKZO under the trade name ELFACOS GT 282 S.

When present, preferably the non-ionic polyoxyalkylated fatty alcohol ether(s) (I) is/are present in a content ranging from 0.001 to 10% by weight, preferably from 0.005 to 5% by weight, preferably from 0.075 to 2% by weight, better from 0.01 to 1% by weight relative to the total weight of the composition.

Additives

The composition according to the invention may optionally include one or more additives, different from the compounds previously described and among which we may mention cationic, anionic, non-ionic, amphoteric polymers or mixtures thereof, vitamins and pro-vitamins including panthenol, sunscreens, mineral or organic pigments, plasticizers, solubilizers, opacifiers or pearlescent agents, antioxidants, hydroxy acids, perfumes.

The above additives can generally be present in quantities of between 0 and 20% by weight of each of them, relative to the total weight of the composition.

Preferably, the composition according to the invention does not include a cationic polymer.

According to one embodiment, the composition according to the invention further comprises one or more chemical oxidants as described below. In this embodiment, the composition is ready for use.

Preferably, the pH of the ready-to-use composition is between 8 and 11, preferably between 9 and 10.5.

According to another embodiment, the composition according to the invention does not comprise chemical oxidizing agents. According to this embodiment, the composition is preferably intended to be mixed with one or more chemical oxidizing agent(s).

Preferably, the pH of the composition not containing a chemical oxidizing agent is between 8 and 13, preferably between 9 and 12.

According to another particular embodiment, the pH of the composition not containing a chemical oxidizing agent is between 7 and 10 and the pH of the ready-to-use composition is between 6 and 9.

Process

The present invention also relates to a method for coloring keratin fibers, preferably hair, which includes applying to said keratin fibers an effective amount of a composition as defined above, in the presence of an oxidizing agent.

The composition can be applied to dry or wet keratin fibers. After treatment, the keratin fibers may be rinsed with water, or possibly washed with shampoo followed by rinsing with water, before being dried or left to dry.

Preferably, the process according to the invention includes a step of mixing the composition described above, which does not include a chemical oxidizing agent, with an oxidizing composition comprising at least one chemical oxidizing agent. This mixing step is preferably carried out at the time of use, just before applying the resulting composition to the hair.

According to this embodiment, the ready-to-use composition is preferably obtained by mixing at least two compositions:
a composition comprising:
- at least one oxidation base chosen from 2-β-hydroxyethyl-para-phenylenediamine and its addition salts, its solvates and/or the solvates of its salts, 2-(γ-hydroxypropyl)-para-phenylenediamine and its addition salts, its solvates and/or the solvates of its salts, 2-methoxymethyl-para-phenylenediamine and its addition salts, its solvates and/or the solvates of its salts and their mixture;
- ammonium bicarbonate; And
an oxidizing composition comprising one or more chemical oxidizing agents, preferably hydrogen peroxide.

In a preferred embodiment, the process for coloring keratin fibers, preferably hair, according to the invention comprises the step of applying to the keratin fibers a composition resulting from the mixture, at the time of use, of at least two compositions:
a) a composition comprising
- at least one oxidation base chosen from 2-β-hydroxyethyl-para-phenylenediamine and its addition salts, its solvates and/or the solvates of its salts, 2-(γ-hydroxypropyl)-para-phenylenediamine and its addition salts, its solvates and/or the solvates of its salts, 2-methoxymethyl-para-phenylenediamine and its addition salts, its solvates and/or the solvates of its salts and their mixture;
- ammonium bicarbonate;
- at least one additional alkaline agent;
- at least one fatty acid;
- at least one fat other than fatty acids preferably chosen from liquid hydrocarbons comprising more than 6 carbon atoms, vegetable oils, fatty alcohols and liquid fatty esters, waxes, and mixtures thereof;
- at least one oxidation coupler;
- at least one additional surfactant, preferably chosen from non-ionic surfactants, more preferably chosen from _C8 to _C40 alcohols, saturated or unsaturated, linear or branched, oxyethylenated or oxypropylenated, comprising from 1 to 100 moles of ethylene or propylene oxide, preferably from 2 to 50, more particularly from 2 to 40 moles, and comprising at least one _C8 - _C20 alkyl chain
_- at least one sequestrant, preferably chosen from N,N-dicarboxymethyl glutamic acid and its salts (GLDA);
b ) an oxidizing composition comprising one or more chemical oxidizing agents.

More specifically, the chemical oxidizing agent(s) are chosen from hydrogen peroxide, urea peroxide, alkali metal bromates or ferricyanides, peroxygenated salts such as persulfates, perborates, peracids and their precursors, and alkali or alkaline earth metal percarbonates and mixtures thereof. Preferably, the oxidizing agent is chosen from hydrogen peroxide.

The oxidizing composition 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 relative to the total weight of the oxidizing composition.

The oxidizing composition may also include one or more organic solvents selected from those listed previously; these solvents, when present, should represent, more specifically, 1 to 40% by weight relative to the weight of the oxidizing composition, and preferably 5 to 30% by weight of the oxidizing composition. The oxidizing composition also preferably includes one or more acidifying agents. Examples of acidifying agents include mineral or organic acids such as hydrochloric acid, orthophosphoric acid, sulfuric acid, carboxylic acids such as acetic acid, tartaric acid, citric acid, lactic acid, and sulfonic acids.

In addition, the oxidizing composition may include fatty substances such as those described above, preferably chosen from fatty alcohols, liquid hydrocarbons comprising more than 6 carbon atoms and their mixtures, surfactants, polymers.

Usually, the pH of the oxidizing composition, when aqueous, is less than 7, preferably ranging from 1.5 to 4.

Preferably, the oxidizing composition comprises hydrogen peroxide as an oxidizing agent, in aqueous solution, the concentration of which varies, more particularly, from 0.1 to 50%, more particularly between 0.5 and 20%, and even more preferably between 1 and 15% by weight relative to the weight of the oxidizing composition.

Kit

Another object of the invention is a multi-compartment device, preferably two compartments, for coloring keratin fibers, preferably hair, comprising at least a first compartment containing the coloring composition according to the invention and at least a second compartment containing an oxidizing composition as described above.

The compositions of the device according to the invention are packaged in separate compartments, accompanied, optionally, by suitable application means, identical or different, such as brushes, sponges or brushes.

The device mentioned above can also be equipped with a means of delivering the desired mixture onto the hair, for example such as the devices described in patent FR 2586913.

The present invention finally relates to the use of a composition as described above for coloring keratin fibers, and in particular hair.

The following examples serve to illustrate the invention without being intended to be limiting.

Examples

In the following examples, all quantities are given as mass percentage of active material (AM) relative to the total weight of the composition (unless otherwise stated).

Composition

Colour composition A was prepared from the ingredients whose contents are indicated in the table below (% active ingredient):

Colouring composition

HAS AMMONIUM HYDROXIDE 3.29 AMMONIUM BICARBONATE 2.5 NON-IONIC SURFACTANT 2.45 FATTY ACID(S)* 0.3 CETEARYL ALCOHOL 16 C15-19 ALKANE 2.00 PROPYLENE GLYCOL 2.00 CANDELILLA WAX 0.1 TETRASODIUM GLUTAMATE DIACETATE 0.24 ANTIOXIDANT 1.0 HYDROXYETHYL-p-PHENYLENEDIAMINE SULFATE 1.0 N,N-BIS(2-HYDROXYETHYL)-p-PHENYLENEDIAMINE SULFATE 0.17 m-AMINOPHENOL 0.174 HYDROXYBENZOMORPHOLINE 0.16 2,4-DIAMINOPHENOXYETHANOL HCl 0.022 2-AMINO-3-HYDROXYPYRIDINE 0.21 HYDROXYETHYL-3,4-METHYLENEDIOXYANILINE HCL 0.22 WATER / AQUA Qs 100

* INCI Name: STEARIC ACID

At the time of use, composition A is mixed with 1 1/2 times its weight of oxidant O.

The mixture is applied to strands of natural white hair at a ratio of 5g of mixture to 1g of hair.

After 35 minutes of rest on a heated plate at 27°C, the hair is rinsed, washed with a standard shampoo, and dried.

The result is a very beautiful, luminous brown with intense highlights, good coverage of grey hair and a homogeneous colour from root to tip.

Furthermore, the composition according to the invention allows for good sensory performance.

Claims (18)

Composition includes:
- at least one oxidation base chosen from 2-β-hydroxyethyl-para-phenylenediamine, its addition salts, its solvates and/or the solvates of its salts, 2-(γ-hydroxypropyl)-para-phenylenediamine, its addition salts, its solvates and/or the solvates of its salts, 2-methoxymethyl-para-phenylenediamine, its addition salts, its solvates and/or the solvates of its salts and mixtures thereof;
- Ammonium bicarbonate. Composition according to the preceding claim, wherein the total content of oxidation base selected from 2-β-hydroxyethyl-para-phenylenediamine, its addition salts, its solvates and/or the solvates of its salts, 2-(γ-hydroxypropyl)-para-phenylenediamine, its addition salts, its solvates and/or the solvates of its salts, 2-methoxymethyl-para-phenylenediamine, its addition salts, its solvates and/or the solvates of its salts and mixtures thereof varies from 0.001 to 20% by weight, more preferably from 0.005 to 15% by weight, better from 0.01 to 10% by weight, even better from 0.05 to 5% by weight, even better from 0.1 to 3% by weight relative to the total weight of the composition. Composition according to any one of the preceding claims, wherein the total ammonium bicarbonate content varies from 0.01% to 20% by weight, preferably from 0.05% to 15% by weight, preferably from 0.1% to 10% by weight, more preferably from 0.4% to 5% by weight, better from 0.5% to 4% by weight, better still from 1% to 3% by weight relative to the total weight of the composition. Composition according to any one of the preceding claims, comprising at least one additional alkali agent, preferably selected from ammonium hydroxide, alkanolamines, alkali metal silicates and metasilicates, mineral hydroxides and mixtures thereof, more preferably selected from ammonium hydroxide, alkanolamines and mixtures thereof, better selected from ammonium hydroxide, monoethanolamine and mixtures thereof. Composition according to any one of the preceding claims, comprising at least one fatty acid selected from fatty acids having at least one carboxylic acid group and an alkyl chain, linear or branched, saturated or unsaturated, comprising from 10 to 30 carbon atoms, in particular from 14 to 22 carbon atoms, preferably selected from solid fatty acids, even more preferably selected from palmitic acid, lauric acid, myristic acid, stearic acid and mixtures thereof, better from palmitic acid, myristic acid, stearic acid and mixtures thereof. Composition according to any one of the preceding claims wherein the total content of the fatty acid(s) ranges from 0.01 to 10% by weight, more preferably from 0.05 to 5% by weight, better from 0.1 to 1% by weight, better from 0.2 to 0.5% by weight, relative to the total weight of the composition. Composition according to any one of the preceding claims, comprising at least one fat other than fatty acids, preferably selected from hydrocarbons comprising more than 6 carbon atoms, vegetable oils, fatty alcohols and liquid fatty esters, waxes, and mixtures thereof, more preferably from solid fatty alcohols, mixtures of alkanes having from 8 to 28 carbon atoms, vegetable waxes, better from cetearyl alcohol, C15-19 Alkane (INCI name), Candelilla wax and mixtures thereof. Composition according to any one of the preceding claims wherein the total content of the fat(s) other than fatty acids varies from 5 to 35% by weight, more preferably from 7 to 30% by weight, and better from 8 to 25% by weight, relative to the total weight of the composition. Composition according to any one of the preceding claims, comprising at least one additional oxidation base different from the oxidation bases as defined in claim 1. Composition according to any one of the preceding claims, comprising at least one coupler, preferably selected from 6-hydroxybenzomorpholine, its addition salts, its solvates and/or the solvates of its salts, hydroxyethyl-3,4-methylenedioxyaniline, its addition salts, its solvates and/or the solvates of its salts, 2-amino 5-ethylphenol, its addition salts, its solvates and/or the solvates of its salts and mixtures thereof. Composition according to any one of the preceding claims, not comprising oxidation couplers selected from resorcinol, 2-methyl resorcinol, 4-chloro resorcinol, their addition salts, their solvates, and the solvates of their salts. Composition according to any one of the preceding claims, comprising at least one additional surfactant, the surfactant(s) other than fatty acids being preferably selected from non-ionic surfactants, more preferably selected from _C8 - _C40 alcohols, saturated or unsaturated, linear or branched, oxyethylenated or oxypropylenated, comprising from 1 to 100 moles of ethylene or propylene oxide, preferably from 2 to 50, more particularly from 2 to 40 moles, and comprising at least one _C8 - _C20 alkyl chain. Composition according to any one of the preceding claims, comprising at least one sequestering agent, preferably selected from diethylenetriamine pentaacetic acid (DTPA) and its salts, diethylenediamine tetraacetic acid (EDTA) and its salts, ethylenediamine disuccinic acid (EDDS) and its salts, etidronic acid and its salts, N,N-dicarboxymethyl glutamic acid and its salts (GLDA) and mixtures thereof, more preferably from N,N-dicarboxymethyl glutamic acid and its salts (GLDA) and mixtures thereof. Composition according to any one of the preceding claims, not comprising any chemical oxidizing agent. Composition according to any one of claims 1 to 13, comprising at least one chemical oxidizing agent, preferably hydrogen peroxide. A method for coloring keratin fibers, preferably hair, comprising applying to the keratin fibers the composition as defined according to claim 14. A method according to claim 15 comprising applying the mixture to the fibers:
a) a composition according to any one of claims 1 to 14.
b) an oxidizing composition comprising one or more chemical oxidizing agents, preferably hydrogen peroxide. A multi-compartment device, preferably two compartments, for coloring keratin fibers, preferably hair, comprising at least a first compartment containing a composition as defined according to any one of claims 1 to 14 and at least a second compartment containing an oxidizing composition comprising one or more chemical oxidizing agents, preferably hydrogen peroxide.