FR3163850A1 - Composition obtained by mixing at least one coloring composition comprising at least one oxidation dye, at least one fatty acid, at least one alkali metal and at least one alkyl polyglucoside, and at least one oxidizing composition - Google Patents

Abstract

The present invention relates to a composition obtained by mixing at least one coloring composition (C1) comprising (i) at least one oxidizing dye, (ii) at least one fatty acid, (iii) at least one alkali, (iv) at least one nonionic alkylpolyglucoside surfactant, and at least one oxidizing composition (C2) free of phosphoric acid and comprising (v) one or more chemical oxidizing agents and (vi) one or more carboxylic acids different from the fatty acid(s) (ii). The present invention also relates to a method for coloring keratin fibers, particularly human keratin fibers such as hair, in which the composition as described above is applied to said fibers. The invention further relates to the use of the composition according to the invention for coloring keratin fibers, particularly human keratin fibers such as hair.

Description

Composition obtained by mixing at least one coloring composition comprising at least one oxidation dye, at least one fatty acid, at least one alkali metal and at least one alkyl polyglucoside, and at least one oxidizing composition

The present invention relates to a composition obtained by mixing at least one colouring composition (C1) comprising (i) at least one oxidation colour, (ii) at least one fatty acid, (iii) at least one alkali agent, (iv) at least one non-ionic surfactant of the alkylpolyglucoside type, and at least one oxidizing composition (C2) as defined below.

The present invention also relates to a method for coloring keratin fibers, in particular human keratin fibers such as hair, in which the composition as described above is applied to said fibers.

The invention further relates to the use of the composition according to the invention for coloring keratin fibers, in particular human keratin fibers such as hair.

In the field of hair coloring, it is known to dye keratin fibers, particularly human keratin fibers such as hair, to obtain so-called permanent colors using dye compositions comprising one or more oxidation dye precursors, notably oxidation bases such as ortho- or paraphenylenediamines, ortho- or para-aminophenols, or heterocyclic compounds such as pyrazoles, pyrazolinones, or pyrazolopyridines. These oxidation bases are colorless or weakly colored compounds which, when mixed with oxidizing agents, can give rise to colored compounds through a process of oxidative condensation.

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.

At the time of application, the dye compositions are generally mixed with oxidizing compositions, including one or more oxidizing agents, and then applied to the keratin fibers. After a processing time, the keratin fibers are generally rinsed with water, then washed, once or several times, with shampoo, and possibly dried to achieve the desired color.

However, the implementation of such compositions can lead to a number of disadvantages, in particular unsatisfactory dyeing and cosmetic performance which may be due to the quality of the water used during such a coloring process, especially depending on its more or less significant lime content.

Indeed, during the implementation of oxidation coloring processes, the limescale present in the water can lead to the formation of complexes and/or insoluble salts that can deposit on keratin fibers, thus impacting the desired dyeing and cosmetic performance. In particular, such processes can, on the one hand, lead to unsatisfactory coloring, notably by producing colors that lack chromaticity, with less aesthetically pleasing, less homogeneous, duller, and less glossy highlights.

In other words, oxidation coloring processes can result in unsatisfactory dyeing and cosmetic performance which can be degraded depending on water quality conditions, particularly its hardness, especially in compositions containing fatty acids.

In addition, dyeing and cosmetic performance can vary depending on water quality conditions, i.e., the geographical location of the consumer(s), even when the same dyeing composition is used.

Thus, there is a real need to make available a composition for the coloring of keratin fibers, in particular human keratin fibers such as hair, which does not have the disadvantages mentioned above, that is to say, which is capable of leading to improved dyeing and cosmetic performance regardless of water quality conditions, in particular its hardness, especially its limestone or calcium ion content.

In particular, there is a real need to implement an oxidation coloring process capable of leading to satisfactory dyeing and cosmetic properties while minimizing the deposition of complexes and/or insoluble salts on keratin fibers.

• d’au moins une composition colorante (C1) comprenant :

The present invention therefore relates in particular to a composition obtained by mixing:

• of at least one colouring composition (C1) comprising:

(i) one or more oxidation dyes,

(ii) one or more fatty acids,

(iii) one or more alkali agents, and

• d’au moins une composition oxydante (C2), exempte d’acide phosphorique, comprenant :

(iv) one or more non-ionic alkylpolyglucoside surfactants, and

• of at least one oxidizing composition (C2), free from phosphoric acid, comprising:

(v) one or more chemical oxidizing agents, and

(vi) one or more carboxylic acids different from the fatty acid(s) (ii).

The composition according to the invention makes it possible to achieve the above objectives, in particular by leading to improved and constant dyeing and cosmetic performances, that is to say, which depend as little as possible on the quality conditions of the water used, in particular its hardness, and more particularly its mineral salt content, even more particularly its calcium ion content.

In other words, the composition according to the invention thus makes it possible to reduce the deposits of complexes and/or insoluble mineral salts on keratin fibers which could impact their dyeing and cosmetic performance.

In other words, the composition according to the invention makes it possible to avoid the deposits of complexes and/or insoluble mineral salts, which may occur during the implementation of an oxidation coloring process, thus ensuring consistently the obtaining of good dyeing and cosmetic properties.

The composition according to the invention thus makes it possible to achieve more chromatic colours, presenting more aesthetic nuances of reflections, and more homogeneous.

The composition according to the invention also exhibits good performance properties, including a creamy texture, and is stable during application to keratin fibers.

The composition according to the invention also has the advantage of being obtained following an easy and rapid mixing of the colouring composition (C1) and the oxidizing composition (C2).

Furthermore, the composition according to the invention makes it possible to achieve improved cosmetic properties, in particular in terms of shine, smooth touch, natural feel, ease of detangling, improved alignment and visual appearance of the fibers.

Advantageously, the composition according to the invention makes it possible to improve the shine of keratin fibers while leading to improved dyeing performance with more chromatic colors, presenting more aesthetically pleasing and more homogeneous shades.

Thus, the treated keratin fibers are less dull, shinier, and exhibit a more chromatic and homogeneous coloration.

Even more advantageously, the composition according to the invention obtained by mixing with at least one oxidizing composition (C2), as defined above, comprising at least one carboxylic acid, results in improved dyeing and cosmetic performance, compared to a composition obtained by mixing an oxidizing composition comprising at least one phosphoric acid.

The present invention also relates to a method for coloring keratin fibers, in particular human keratin fibers such as hair, comprising at least the application to said fibers of at least one composition according to the invention.

In particular, the invention relates to a process for coloring keratin fibers, in particular human keratin fibers such as hair, comprising at least the application on said fibers of at least one composition obtained by mixing at least one composition (C1) and at least one oxidizing composition (C2), as defined above.

The invention further relates to the use of the composition according to the invention for coloring keratin fibers, in particular human keratin fibers such as hair.

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 ".

1. Composition obtenue par mélange d’au moins une composition colorante (C1) et d’au moins une composition oxydante (C2)

Similarly, the expression " at least " used in this description is equivalent to the expression " greater than or equal to ".

1. Composition obtained by mixing at least one coloring composition (C1) and at least one oxidizing composition (C2)

As previously stated, the composition according to the invention is obtained by mixing at least one colouring composition (C1) and at least one oxidizing composition (C2).

According to a preferred embodiment, the composition according to the invention is prepared by a process comprising a mixing step of at least one colouring composition (C1) and at least one oxidizing composition (C2).

A1. Coloring composition (C1)

The colouring composition (C1) comprises (i) one or more oxidation dyes, (ii) one or more fatty acids, (iii) one or more alkali agents and (iv) one or more non-ionic alkylpolyglucoside surfactants.

Oxidation dyes

The composition (C1) according to the invention comprises (i) one or more oxidation dyes.

Oxidation dyes can be chosen from one or more oxidation bases, possibly combined with one or more couplers.

Preferably, the oxidation dye(s) comprise one or more oxidation bases.

Preferably, the composition according to the invention (C1) comprises one or more oxidation bases.

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

The addition salts of the oxidation bases present in the composition according to the invention (C1) 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 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.

As an example, oxidation bases are chosen from para-phenylenediamines, bis(phenyl)alkylenediamines, para-aminophenols, ortho-aminophenols, heterocyclic bases and corresponding addition salts, solvates and/or solvates of salts.

Examples of paraphenylenediamines 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-β-hydroxyethyl-para-phenylenediamine, 2-methoxymethyl-para-phenylenediamine, 2-fluoro-para-phenylenediamine, 2-isopropyl-para-phenylenediamine, N-(β-hydroxypropyl)-para-phenylenediamine, 2-(γ-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-hydroxyethyloxy-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 addition salts, solvates and/or solvates of their salts.

Among the aforementioned para-phenylenediamines, para-phenylenediamine, para-toluenediamine, 2-isopropyl-para-phenylenediamine, 2-β-hydroxyethyl-para-phenylenediamine, 2-(γ-hydroxypropyl)-para-phenylenediamine, 2-methoxymethyl-para-phenylenediamine , 2-β-hydroxyethyloxy-para-phenylenediamine, 2,6-dimethyl-para-phenylenediamine, 2,6-diethyl-para-phenylenediamine, 2,3-dimethyl-para-phenylenediamine, N,N-bis(β-hydroxyethyl)-para-phenylenediamine, 2-chloro-para-phenylenediamine and 2-β-acetylaminoethyloxy-para-phenylenediamine and the corresponding addition salts, solvates and/or solvates of their salts are preferred.

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 addition salts, solvates and solvates of 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, where 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/or 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 their salts, their solvates and/or solvates of their 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.

Preferably, the oxidation base(s) are chosen from among para-phenylenediamines, bis(phenyl)alkylenediamines, para-aminophenols, ortho-aminophenols, heterocyclic bases, and their corresponding addition salts, their solvates and/or the solvates of their salts and mixtures thereof; more preferably from 2-methoxymethyl-para-phenylenediamine, 2-β-hydroxyethyl-para-phenylenediamine, 2-γ-hydroxypropyl-para-phenylenediamine, and their addition salts, their solvates and/or the solvates of their salts and mixtures thereof.

Preferably, the oxidation base(s) is/are present in a total content ranging from 0.001 to 20% by weight, preferably 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 weight of the composition (C1).

According to a preferred embodiment, when the composition (C1) comprises at least one oxidation base selected from 2-methoxymethyl-para-phenylenediamine, 2-β-hydroxyethyl-para-phenylenediamine, 2-γ-hydroxypropyl-para-phenylenediamine, their addition salts, their solvates and/or the solvates of their salts and mixtures thereof, it (they) is (are) present in a total content of 0.001 to 20% by weight, preferably 0.005 to 15% by weight, more preferably 0.01 to 10% by weight, better 0.05 to 5%, even better 0.1 to 3% by weight, relative to the total weight of the composition.

In a particular embodiment, the composition (C1) is free of oxidation bases selected from paraphenylenediamine, paratoluenediamine, their addition salts, their solvates, and the solvates of their salts.

The oxidation dye(s) can also be chosen from one or more couplers, which can be chosen from those conventionally used for staining keratin fibers.

Preferably, the composition (C1) according to the invention comprises one or more couplers.

Among the useful couplers according to the invention, we can in particular mention metaphenylenediamines, 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.

According to a particular embodiment, the composition (C1) 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.

Preferably, the oxidation dye(s) is/are different from at least one oxidation dye selected from the group consisting of 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) 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 (C1).

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 (C1).

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 (C1).

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 (C1).

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 (C1).

Preferably, the total content of oxidation dyes 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 (C1).

Fatty acid

The colouring composition (C1) further comprises (ii) one or more fatty acids.

The term "fatty acids" refers to a long-chain carboxylic acid comprising at least 6 carbon atoms, in particular 6 to 40 carbon atoms, preferably 8 to 30 carbon atoms. The fatty acids according to the invention preferably comprise 10 to 30 carbon atoms, and more preferably 14 to 22 carbon atoms. They may optionally be hydroxylated.

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

Preferably, fatty acids have at least one carboxylic acid group and one unsaturated, linear or branched alkyl chain comprising 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, 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 (C1) 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 (1.013.10 ⁵ Pa).

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

Preferably, the solid fatty acid(s) are chosen from lauric acid, myristic acid, cetyl acid, stearic acid.

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 (1.013.10 ⁵ Pa).

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

Preferably, the fatty acids present in the composition according to the invention (C1) are liquid fatty acids, in particular chosen from fatty acids comprising at least one carboxylic acid group and an unsaturated linear or branched alkyl chain comprising 10 to 30 carbon atoms, in particular 14 to 22 carbon atoms.

Preferably, the fatty acids present in the composition (C1) are liquid fatty acids, in particular chosen from oleic acid, linoleic acid, linolenic acid and their mixtures, more preferably oleic acid.

Preferably, the fatty acids present in the composition (C1) are myristic, lauric, oleic, linoleic, linolenic, isocetyl, isostearic, cetyl, stearylic acids, and mixtures thereof, preferably oleic acid.

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

Advantageously, the fatty acid(s) are present in a total content ranging from 0.1 to 15% by weight, preferably from 0.5 to 10%, preferably from 1 to 5% by weight relative to the total weight of the composition (C1).

In a particular embodiment, advantageously, the liquid fatty acid(s) are present in a total content ranging from 0.1 to 15% by weight, preferably from 0.5 to 10%, preferably from 1 to 5% by weight relative to the total weight of the composition (C1).

Alkaline agent

The colouring composition (C1) comprises (iii) one or more alkali agents.

The alkali agent(s) may be mineral, organic or hybrid alkali agents.

For the purposes of the present invention, the terms "alkaline agent" and "alkalinizing agents" are used interchangeably.

The mineral alkalizing agent(s) are preferably chosen from ammonia, alkali carbonates or bicarbonates such as sodium (hydrogen)carbonate and potassium (hydrogen)carbonate, alkali or alkaline earth metal phosphates such as sodium or potassium phosphates, sodium or potassium hydroxides, alkali or alkaline earth metal silicates or metasilicates such as sodium metasilicate and mixtures thereof.

The organic alkalizing agent(s) are preferably chosen from alkanolamines, amino acids, organic amines other than alkanolamines, oxyethylenated and/or oxypropylenated ethylenediamines, 1,3-diaminopropane, spermine, spermidine and mixtures thereof.

Alkanolamine is defined as an organic amine comprising a primary, secondary or tertiary amine function, and one or more linear or branched alkyl groups, in _C1 - _C8 bearing one or more hydroxyl radicals.

Organic amines selected from among alkanolamines such as mono-, di- or tri-alkanolamines, comprising one to three hydroxyalkyl radicals, identical or not, in _C1 - _C4 , are particularly suitable for carrying out the invention.

In particular, the alkanolamine(s) are chosen from 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, tris-hydroxymethylamino-methane and mixtures thereof.

Advantageously, amino acids are basic amino acids containing an additional amine group. Such basic amino acids are preferably chosen from histidine, lysine, arginine, ornithine, and citrulline.

The organic amine can also be chosen from among heterocyclic organic amines. In particular, besides histidine already mentioned among amino acids, pyridine, piperidine, imidazole, triazole, tetrazole, and benzimidazole can be cited. The organic amine can also be chosen from amino acid dipeptides. Examples of amino acid dipeptides usable in the present invention include carnosine, anserine, and balenine. The organic amine can also be chosen from compounds containing a guanidine functional group. Examples of amines of this type other than arginine that can be used in the present invention include creatine, creatinine, 1,1-dimethylguanidine, 1,1-diethylguanidine, glycocyamine, metformin, agmatine, n-amidinoalanine, 3-guanidinopropionic acid, 4-guanidinobutyric acid and 2-([amino(imino)methyl]amino)ethane-1-sulfonic acid.)

Examples of hybrid compounds that can be used include guanidine carbonate and monoethanolamine hydrochloride.

The useful alkali agent(s) according to the invention is/are preferably chosen from alkanolamines such as monoethanolamine, diethanolamine, triethanolamine; ammonia; carbonates or bicarbonates such as sodium (hydrogen)carbonate and potassium (hydrogen)carbonate; alkali or alkaline earth metal silicates or metasilicates such as sodium metasilicate and mixtures thereof, more preferably from ammonia and alkanolamines, better from alkanolamines, and even better from monoethanolamine.

Preferably, the alkalizing agent(s) is/are organic.

Preferably, the alkalizing agent(s) is/are chosen from among the alkanolamines such as monoethanolamine, diethanolamine, triethanolamine, in particular monoethanolamine.

In a particular embodiment, the composition (C1) according to the invention is free of ammonia.

The total content of the alkali agent(s) is greater than or equal to 5% by weight relative to the total weight of the composition (C1).

Preferably, the total content of alkali agents is greater than or equal to 8% by weight, more preferably greater than or equal to 10% by weight, relative to the total weight of the composition (C1).

Preferably, the total content of alkali agents varies from 5 to 40% by weight, more preferably from 6 to 30% by weight, better from 8 to 20% by weight, even better from 10 to 15% by weight relative to the total weight of the composition (C1).

In a preferred embodiment, the total content of the alkaline agent(s) chosen from among the alkanolamines, preferably monoethanolamine, is preferably greater than or equal to 5% by weight, preferably from 6 to 40% by weight, more preferably from 7 to 30% by weight, more preferably still from 8 to 20% by weight, better from 10 to 15% by weight, relative to the total weight of the composition (C1).

According to one embodiment, the pH of the composition (C1) is between 8 and 13; preferably between 9.0 and 12, better between 10 and 11.

Preferably, the composition (C1) includes at least one alkaline agent selected from the alkanolamines and has a pH between 8 and 13; preferably between 9.0 and 12, better between 10 and 11.

The pH of the composition (C1) can be adjusted to the desired value by means of acidic or alkaline agent(s) commonly used in dyeing keratin fibers such as those described above, or by means of buffer systems known to those skilled in the art.

Non-ionic alkylpolyglucoside surfactant

The colouring composition (C1) further comprises (iv) one or more non-ionic surfactants of the alkylpolyglucoside type.

In other words, the colour composition (C1) further comprises (iv) one or more alkyl polyglucosides.

The term "alky(poly)glycoside" refers to an alkylpolyglycoside or an alkylmonoglycoside, also called alkylglycoside in this application, which can be alkoxylated by one or more alkylene oxide groups, preferably at _C2 to _C4 .

The alkyl(poly)glycoside(s) can be represented by the following general formula: _R1O- ( _R2O )t-(G)v in which:
- R ₁ represents a linear or branched alkyl or alkenyl radical comprising 6 to 24 carbon atoms, in particular 8 to 18 carbon atoms, or an alkylphenyl radical whose linear or branched alkyl radical comprises 6 to 24 carbon atoms, in particular 8 to 18 carbon atoms;
- _R2 represents an alkylene radical with 2 to 4 carbon atoms,
- G represents a sugar motif containing 5 to 6 carbon atoms,
- t denotes a value ranging from 0 to 10, preferably from 0 to 4,
- v denotes a value from 1 to 15, preferably from 1 to 4.

Preferably, alkyl(poly)glycosides are compounds with the formula described above, in which:
- R ₁ designates a saturated or unsaturated, linear or branched alkyl radical comprising 8 to 18 carbon atoms,
- _R2 represents an alkylene radical with 2 to 4 carbon atoms,
- t denotes a value ranging from 0 to 3, preferably equal to 0,
- G designates glucose, fructose or galactose, preferably glucose;
- the degree of polymerization, i.e. the value of v, which can range from 1 to 15, preferably from 1 to 4; the average degree of polymerization being more particularly between 1 and 2.

The glycosidic bonds between the sugar motifs are generally of the 1-6 or 1-4 type, preferably of the 1-4 type. Preferably, the alkyl(poly)glycoside is an alkyl(poly)glucoside.

Among the commercial products, we can mention the products sold by the company COGNIS under the names PLANTAREN® (600 CS/U, 1200 and 2000) or PLANTACARE® (818, 1200 and 2000); the products sold by the company SEPPIC under the names ORAMIX CG 110 and ORAMIX® NS 10; the products sold by the company BASF under the name LUTENSOL GD 70; the products sold by the company CHEM Y under the name AG10 LK; the products sold by EVONIK GOLDSCHMIDT under the trade names TEGO CARE CG 90 or TEGO CARE CG 90 MB, the products sold by SEPPIC under the trade names Montanov® 68, Montanov® 68 MB, Montanov® 14 or Montanov® 202, or the products sold by BASF under the name Emulgade® PL 68/50.

Preferably, the composition comprises one or more alkyl(poly)glycosides selected from, alone or in mixture, the (alkyl C6-C24)(poly)glycosides, and more particularly the (alkyl C8-C18)(poly)glycosides, preferably selected from coco-glucoside, lauryl glucoside, caprylyl/capryl glucoside, cetearyl glucoside, better cetearyl glucoside.

We particularly prefer alkyl C8/C18-(poly)glucosides 1,4, and especially the compounds with INCI names coco glucoside and cetearyl glucoside.

The total content of alkyl(poly)glycoside(s) varies preferably from 0.01 to 20% by weight, preferably from 0.02 to 10% by weight, more preferably from 0.05 to 8% by weight, better from 0.08 to 5% by weight, even better from 0.1 to 3% by weight, or even from 0.2 to 2% by weight relative to the total weight of the composition (C1).

The colouring composition (C1) may optionally include one or more polysaccharides and/or one or more polyols and/or one or more fatty alcohols.

Polysaccharide

The colouring composition (C1) may further comprise one or more polysaccharides.

Preferably, the colour composition (C1) comprises one or more polysaccharides, more preferably chosen from anionic polysaccharides.

The term " polysaccharides " refers to polymers containing at least 11 monosaccharide units. Preferably, the polysaccharides of the invention comprise between 20 and 100,000 monosaccharide units.

The anionic polysaccharides according to the invention comprise one or more anionic or anionizable groups, and do not comprise any cationic or cationizable group.

The useful anionic polysaccharides according to the invention can be selected from those derived from the following sugars: glucose; galactose; arabinose; rhamnose; mannose; xylose; fucose; anhydrogalactose; galacturonic acid; glucuronic acid; mannuronic acid; galactose sulfate; anhydrogalactose sulfate.

The anionic polysaccharides of the invention can be natural or synthetic.

According to a particular embodiment, the anionic polysaccharides useful in the composition (C1) according to the invention are selected from native gums such as:
• Exudates from trees or shrubs including: gum arabic (a branched polymer of galactose, arabinose, rhamnose and glucuronic acid); ghatti gum (a polymer of arabinose, galactose, mannose, xylose and glucuronic acid); karaya gum (a polymer of galacturonic acid, galactose, rhamnose and glucuronic acid); tragacanth gum (or tragacanth) (a polymer of galacturonic acid, galactose, fucose, xylose and arabinose);
• gums derived from algae such as: alginates (polymers of mannuronic acid and glucuronic acid); carrageenans and furcelleranes (polymers of galactose sulfate and anhydrogalactose sulfate);
• microbial gums such as: xanthan gums (polymer of glucose, mannose acetate, mannose/pyruvic acid and glucuronic acid); gellan gums (polymer of partially acylated glucose, rhamnose and glucuronic acid).

For the purposes of the present invention, " microbial gums " means substances synthesized by fermentation of sugars by microorganisms.

According to a preferred embodiment, the anionic polysaccharides useful in the composition according to the invention are chosen from anionic gums, better, from anionic microbial gums, more preferably from xanthan gums .

The total polysaccharide content varies, preferably, from 0.01% to 10% by weight relative to the total weight of the composition, preferably from 0.05% to 8% by weight, better from 0.1% to 5% by weight relative to the total weight of the composition (C1)

When present, the total content of anionic polysaccharides as defined above varies, preferably, from 0.01% to 10% by weight relative to the total weight of the composition, preferably from 0.05% to 8% by weight, better from 0.1% to 5% by weight relative to the total weight of the composition (C1).

The total content of anionic microbial gums as defined above varies, when present, preferably from 0.01% to 10% by weight relative to the total weight of the composition, preferably from 0.05% to 5% by weight, better from 0.1% to 2% by weight relative to the total weight of the composition (C1).

Fatty alcohols
The composition (C1) according to the invention may comprise one or more fatty alcohols.

For the purposes of this invention, "fatty alcohol" means 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.

For the purposes of the present invention, fatty alcohols are neither oxyalkylated nor glycerolated.

The fatty alcohols according to the invention can be saturated or unsaturated, linear or branched, and comprise from 8 to 40 carbon atoms.

More preferably, the fatty alcohols according to the invention are chosen from compounds of structure R-OH with R designating a saturated or unsaturated alkyl group, linear or branched, optionally substituted by one or more hydroxy groups, comprising from 8 to 40, better from 10 to 30, or even from 12 to 24 atoms, even better from 14 to 22 carbon atoms.

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

For the purposes of this invention, "solid fatty alcohol" means a fatty alcohol 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 (1.013.10 ⁵ Pa).

Solid fatty alcohols can be chosen from saturated or unsaturated, linear or branched solid fatty alcohols, containing from 8 to 40 carbon atoms.

The solid fatty alcohols that can be used according to the invention are preferably chosen from compounds of structure R-OH with R designating a linear saturated alkyl group, optionally substituted by one or more hydroxy groups, comprising from 8 to 40, better from 10 to 30, or even from 12 to 24 atoms, even better from 14 to 22 carbon atoms.

The solid fatty alcohols that can be used may be chosen from, alone or in mixtures:
- lauryl alcohol (or 1-dodecanol);
- 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);
- montanyl alcohol (or 1-octacosanol);
- myricyl alcohol (or 1-triacontanol).
Among the mixtures of solid fatty alcohols, cetyl alcohol, stearyl alcohol and/or mixtures thereof such as cetearyl alcohol are preferred.

For the purposes of this invention, "liquid fatty alcohol" means a fatty alcohol having a melting point of less than or equal to 25°C, preferably less than or equal to 20°C at atmospheric pressure (1.013.10 ⁵ Pa).

The liquid fatty alcohols that can be used according to the invention are preferably chosen from compounds of structure R-OH with R designating a saturated or unsaturated alkyl group, linear or branched, preferably unsaturated and/or branched, possibly substituted by one or more hydroxy groups, comprising from 8 to 40, better from 10 to 30, or even from 12 to 24 atoms, even better from 14 to 22 carbon atoms.

Preferably, liquid fatty alcohols are chosen from compounds of R-OH structure with R designating an alkyl group, unsaturated and/or branched, preferably unsaturated, possibly substituted by one or more hydroxy groups, comprising from 12 to 24, even better from 14 to 22 carbon atoms.

The liquid fatty alcohols that may be used may be chosen from, alone or in mixture, oleic alcohol, linoleic alcohol, linolenic alcohol, isocetyl alcohol, isostearyl alcohol, 2-octyl-1-dodecanol, 2-butyl-octanol, 2-hexyl-1-decanol, 2-decyl-1-tetradecanol, 2-tetradecyl-1-cetanol and mixtures thereof, preferably oleic alcohol.

Preferably, liquid fatty alcohols are chosen: linoleic alcohol, oleic alcohol, linolenic alcohol and their mixtures, preferably oleic alcohol.

Preferably, the fatty alcohol(s) are chosen from fatty alcohols comprising 14 to 40 carbon atoms, more preferably 14 to 22 carbon atoms, better from cetyl alcohol, stearyl alcohol, cetearyl alcohol, oleic alcohol and mixtures thereof.

Preferably, the composition (C1) also includes one or more fatty alcohols.

According to a preferred embodiment, the composition (C1) according to the invention comprises one or more solid fatty alcohols and one or more liquid fatty alcohols, preferably one or more solid fatty alcohols comprising 14 to 40 carbon atoms, more preferably 14 to 22 carbon atoms and one or more liquid fatty alcohols comprising 14 to 40 carbon atoms, more preferably 14 to 22 carbon atoms.

According to a preferred embodiment, the composition (C1) according to the invention comprises one or more solid fatty alcohols comprising from 14 to 22 carbon atoms and one or more liquid fatty alcohols comprising from 14 to 22 carbon atoms.

According to another preferred embodiment, the composition (C1) according to the invention comprises one or more solid fatty alcohols selected from compounds of structure R-OH with R denoting a linear saturated alkyl group, optionally substituted by one or more hydroxy groups, comprising from 14 to 22 carbon atoms, and one or more liquid fatty alcohols selected from compounds of structure R-OH with R denoting an alkyl group, unsaturated and/or branched, preferably unsaturated, optionally substituted by one or more hydroxy groups, comprising from 14 to 22 carbon atoms.

Preferably, the colouring composition (C1) further comprises one or more fatty alcohols selected from cetyl alcohol, stearyl alcohol and mixtures thereof such as cetylstearyl or cetearyl alcohol, oleic alcohol and mixtures thereof.

Advantageously, the fatty alcohol(s) are present in a total content ranging from 1 to 35% by weight, preferably from 5 to 30% by weight, more preferably from 8 to 25% by weight, and better from 10 to 20% by weight, relative to the total weight of the composition (C1).

According to a particular embodiment, advantageously the solid fatty alcohol(s) are present in a total content of 1 to 35% by weight, preferably 5 to 30% by weight, more preferably 8 to 25% by weight, and better 10 to 20% by weight, relative to the total weight of the composition (C1).

According to another particular embodiment, advantageously the liquid fatty alcohol(s) are present in a total content of 0.5 to 15% by weight, more preferably of 1 to 10% by weight, and better of 2 to 5% by weight, relative to the total weight of the composition (C1).

Polyol

The composition (C1) according to the invention may further comprise one or more polyols.

For the purposes of this invention, "polyol" means an organic compound consisting of a hydrocarbon chain optionally interrupted by one or more oxygen atoms and bearing at least two free hydroxyl groups (-OH) on different carbon atoms, this compound being able to be cyclic or acyclic, linear or branched, saturated or unsaturated.

Preferably, polyols are different from fatty alcohols as defined previously.

More specifically, the polyol(s) comprise from 2 to 30 hydroxy groups, more preferably from 2 to 10 hydroxy groups, more preferably still from 2 to 3 hydroxy groups.

The polyol(s) are preferably selected from diglycerin, glycerin, propylene glycol, propane-1,3-diol, 1,3-butylene glycol, pentane-1,2-diol, octane-1,2-diol, dipropylene glycol, hexylene glycol, ethylene glycol, polyethylene glycols, sorbitol, sugars such as glucose and mixtures thereof, preferably from glycerin, propane-1,3-diol and mixtures thereof.

Preferably, the composition comprises one or more polyols selected from diglycerin, glycerin, propylene glycol, propane-1,3-diol, 1,3-butylene glycol, pentane-1,2-diol, octane-1,2-diol, dipropylene glycol, hexylene glycol, ethylene glycol, polyethylene glycols, sorbitol, sugars such as glucose and mixtures thereof, preferably from glycerin, propane-1,3-diol, and mixtures thereof.

Preferably, the composition (C1) comprises one or more polyols, more preferably chosen from propane-1,3-diol, glycerin and their mixture.

Even more preferentially, the composition (C1) includes propane-1,3-diol.

Advantageously, the polyol(s) are present in a total content greater than or equal to 5% by weight relative to the total weight of the composition (C1).

Advantageously, the polyol(s) are present in a total content varying from 1 to 20% by weight, preferably from 3 to 15% by weight relative to the total weight of the composition (C1).

1. un ou plusieurs colorants d’oxydation,
2. un ou plusieurs acides gras,
3. un ou plusieurs agents alcalins, et
4. un ou plusieurs tensioactifs non ioniques de type alkylpolyglucoside,

Advantageously, the composition (C1) according to the invention comprises:

1. one or more oxidation dyes,
2. one or more fatty acids,
3. one or more alkaline agents, and
4. one or more non-ionic surfactants of the alkylpolyglucoside type,

Optionally, one or more fatty alcohols as defined above,

Optionally, one or more polyols as defined above,

Optionally, one or more polysaccharides as defined above.

Advantageously, the composition (C1) according to the invention comprises:
(i) one or more oxidation dyes,
(ii) one or more fatty acids,
(iii) one or more alkali agents, and
(iv) one or more non-ionic surfactants of the alkylpolyglucoside type,
one or more compounds chosen from the group consisting of fatty alcohols, polyols, polysaccharides, and mixtures thereof.

Preferably, the composition (C1) according to the invention comprises:
(i) one or more oxidation dyes,
(ii) one or more fatty acids,
(iii) one or more alkali agents,
(iv) one or more non-ionic surfactants of the alkylpolyglucoside type,
one or more fatty alcohols as defined above,

one or more polyols as defined above, preferably selected from propane-1,3-diol, glycerin and mixtures thereof, in particular 1,3-propanediol,

one or more polysaccharides as defined above.

A2. Oxidizing composition (C2)

As previously stated, the oxidizing composition (C2), free of phosphoric acid, comprises (v) one or more chemical oxidizing agents, and (vi) one or more carboxylic acids different from the fatty acid(s) (ii).

In particular, the oxidizing composition (C2) is free of oxidation dye.

Chemical oxidizing agent

For the purposes of this invention, "chemical oxidizing agent" means an oxidizing agent other than atmospheric oxygen.

The chemical oxidizing agent(s) (or bleaching agent(s) usable in the present invention may be selected from hydrogen peroxide, urea peroxide, alkali metal bromates, persalts such as perborates and persulfates, in particular sodium persulfate, potassium persulfate and ammonium persulfate, peracids and oxidase enzymes (with their possible cofactors) including peroxidases, 2-electron oxidoreductases such as uricases and 4-electron oxygenases such as laccases, and mixtures thereof.

More preferably, the chemical oxidizing agent(s) is or are chosen from hydrogen peroxide, persalts, and mixtures thereof, preferably hydrogen peroxide.

Preferably, the chemical oxidizing agent(s) is or are present in a total content ranging from 0.1 to 50%, more preferably from 0.5 to 20% by weight, even more preferably from 1 to 15% by weight, relative to the weight of the composition (C2).

According to a preferred embodiment, the chemical oxidizing agent(s) chosen from hydrogen peroxide, persalts, and mixtures thereof are present in a total content ranging from 0.1 to 50% by weight, more preferably from 0.5 to 20% by weight, more preferably from 1 to 15% by weight, relative to the weight of the composition (C2).

Carboxylic acid is different from fatty acids

Preferably, the carboxylic acid(s) correspond(s) to the following general formula (I) and/or one of its salts:

• U représente un groupe monovalent lorsque n vaut 0 ou polyvalent lorsque n est supérieur ou égal à 1, hydrocarboné comprenant de 1 à 8 atomes de carbone, saturé ou insaturé, cyclique ou on cyclique, aromatique ou non aromatique, éventuellement interrompu par un ou plusieurs hétéroatomes et/ou éventuellement substitué notamment par un ou plusieurs groupes hydroxy; de préférence U représente un groupe monovalent (C₁-C₆)alkyle ou polyvalent (C₁-C₆)alkylène éventuellement substitué par un ou plusieurs groupes hydroxy et/ou amino,
• n représente un entier compris inclusivement entre 0 et 10, de préférence n est compris entre 0 et 5, tel que entre 0 et 2.

in which:

• U represents a monovalent group when n is 0 or a polyvalent group when n is greater than or equal to 1, hydrocarbon comprising from 1 to 8 carbon atoms, saturated or unsaturated, cyclic or non-cyclic, aromatic or non-aromatic, possibly interrupted by one or more heteroatoms and/or possibly substituted, in particular by one or more hydroxy groups; preferably U represents a monovalent ( _C1 - _C6 )alkyl or polyvalent ( _C1 - _C6 )alkylene group possibly substituted by one or more hydroxy and/or amino groups,
• n represents an integer between 0 and 10 inclusive, preferably n is between 0 and 5, such that between 0 and 2.

The carboxylic acid(s) of formula (I) is or are preferably chosen from among the alpha-hydroxy acids.

Preferred examples of carboxylic acids of formula (I) include glycolic acid, citric acid, lactic acid, tartaric acid or one of their salts, preferably glycolic acid, citric acid or lactic acid or one of their salts, better lactic acid, citric acid and/or one of their salts, better citric acid and/or one of its salts.

Preferably, the carboxylic acid is citric acid.

Salts of acids of formula (I) can be salts of organic or mineral bases or of alkalizing agents as defined previously.

The carboxylic acid(s) is or are present in a total content ranging from 0.01 to 30% by weight, preferably from 0.1 to 20% by weight, more preferably from 0.2 to 15% by weight, relative to the total weight of the oxidizing composition (C2).

The oxidizing composition (C2) is preferably an aqueous composition.

In particular, the oxidizing composition (C2) 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.

It may also include one or more organic solvents chosen from those listed above; these solvents, when present, representing more specifically 0.1 to 40% by weight relative to the weight of the oxidizing composition, and preferably 0.5 to 30% by weight

As previously stated, the oxidizing composition (C2) is free of phosphoric acid.

Preferably, the oxidizing composition (C2) may further comprise one or more acidifying agents other than the carboxylic acid(s) (iv), as defined above, such as hydrochloric acid or sulfuric acid.

The oxidizing composition (C2) is preferably aqueous and has a pH less than 7, more preferably between 2 and 5, better between 3 and 4.5.

Preferably, the oxidizing composition (C2), free from phosphoric acid, comprises one or more chemical oxidizing agents and one or more carboxylic acids other than fatty acids selected from alpha-hydroxy acids, in particular citric acid.

Advantageously, the composition according to the invention is obtained by mixing

- of at least one coloring composition (C1) comprising:

(i) one or more oxidation dyes,

(ii) one or more fatty acids,

(iii) one or more alkali agents, preferably chosen from alkanolamines, and

(iv) one or more non-ionic surfactants of the alkylpolyglucoside type,

Optionally, one or more fatty alcohols as defined above,

Optionally, one or more polyols as defined above,

Optionally, one or more polysaccharides as defined above.

- of at least one oxidizing composition (C2), free of phosphoric acid, comprising:
(v) one or more chemical oxidizing agents, and
(vi) one or more carboxylic acids different from the fatty acid(s) (ii) chosen from the alpha-hydroxy acids, preferably citric acid.

Additives

The composition according to the invention, obtained by mixing at least the colouring composition (C1) and at least the oxidizing composition (C2), may include one or more additives different from the compounds of the invention.

These include cationic, anionic, non-ionic, amphoteric polymers or mixtures thereof, different from those mentioned previously, anti-dandruff agents, anti-seborrheic agents, anti-hair loss and/or hair regrowth agents, vitamins and pro-vitamins including panthenol, sunscreens, mineral or organic pigments, plasticizers, solubilizers, opacifiers or pearlescent agents, antioxidants, perfumes, and preservatives.

Of course, the person skilled in the art will take care to choose this or these possible complementary compounds in such a way that the advantageous properties intrinsically attached to the composition according to the invention are not, or substantially not, altered by the envisaged addition(s).

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 ready-to-use composition.

Process

The present invention also relates to a method for coloring keratin fibers, in particular human keratin fibers such as hair, comprising at least the application to said fibers of at least one composition according to the invention.

In particular, the invention relates to a process for coloring keratin fibers, in particular human keratin fibers such as hair, comprising at least the application on said fibers of at least one composition obtained by mixing at least one composition (C1) and at least one oxidizing composition (C2), as defined above.

In other words, the process according to the invention includes at least one step of mixing the composition (C1), as defined above with at least one oxidizing composition (C2), as defined above, and at least one step of applying the composition resulting from said mixture to said fibers.

This mixing step is preferably carried out at the time of use, just before applying the mixture to the hair.

The pH of the mixture is generally from 8 to 12, preferably from 8.5 to 11 and better 9 to 10.5.

In other words, the composition according to the invention preferably has a pH ranging from 8 to 12, preferably from 8.5 to 11 and better 9 to 10.5.

The composition according to the invention can be implemented on dry or wet keratin fibers, as well as on all types of fibers, light or dark, natural or colored, permed, bleached or straightened.

According to a particular embodiment of the process of the invention, the fibers are washed before application of the composition described above.

The application of the composition of the invention to keratin fibers can be carried out by any conventional means, in particular by means of a comb, a brush, a brush, by hand or by fingers.

The coloring process, i.e. application of the coloring composition to the keratin fibers, is generally carried out at room temperature (between 15 and 25°C).

The composition according to the invention can be applied to keratin fibers for a duration of 30 to 60 minutes.

After application of the composition according to the invention, the keratin fibers may optionally be washed with shampoo and/or rinsed with water.

Use

The present invention also relates to the use of the composition according to the invention as described above for coloring keratin fibers, in particular human keratin fibers such as hair.

Device

The invention further relates to a multi-compartment device comprising at least a first compartment containing at least composition (C1), as defined above, and at least a second compartment containing at least composition (C2) as defined above.

The compositions (C1) and (C2) 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 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).

Colour compositions

Compositions A, B, and C were prepared from the ingredients whose contents are indicated in the table below (% ma):

HAS Oleic alcohol 2.7 Cetearyl alcohol 16.3 TETRASODIUM GLUTAMATE DIACETATE 0.24 Xanthan gum 0.2 GLYCERIN 5 Propanediol 5 Oleic acid 2.7 Cetearyl glucoside 0.5 Ethanolamine 12.25 m-aminophenol 0.21 Toluene-2,5-diamine 0.64 Hydroxybenzomorpholine 0.38 Scent 0.5 N,N-BIS(2-HYDROXYETHYL)-p-PHENYLENEDIAMINE SULFATE 0.04 2,4-diaminophenoxyethanol HCl 0.03 Ascorbic acid 0.25 6-hydroxyindole 0.05 2-amino-3-hydroxypyridine 0.01 sodium metabisulfite 0.71 Hydroxyethyl-3,4-methylenedioxyaniline HCl 0.11 Water Qs 100

B C GLYCERIN 0.5 0.5 Phosphoric acid 0.3 - Citric acid - 0.3 TETRASODIUM ETIDRONATE 0.06 0.06 TRIDECETH-2 CARBOXAMIDE MEA 0.82 0.82 TETRASODIUM PYROPHOSPHATE 0.04 0.04 Cetearyl alcohol 2.28 2.28 Ceteareth-25 0.57 0.57 sodium salicylate 0.035 0.035 Hydrogen peroxide 6 6 Water Qs 100 Qs 100

Colour composition A is mixed with oxidizing compositions (B) and (C) in a ratio of 1:1.5.

Each of the mixtures is applied to moderately sensitized hair strands (SA20), at a rate of 5g of mixture per 1g of hair.

After a 30-minute processing time at room temperature, the strands are rinsed with clear water, and finally, the strands are dried for 2 hours in an oven at 60°C.

The colorimetric measurements were carried out with a KONICA MINOLTA CM-3600A spectrocolorimeter (illuminant D65, angle 10°, specular component included) in the CIELab system.

Chromaticity is calculated using the following formula:

 

The higher the chromaticity value C*, the more chromatic the color of the fibers. has* b* C*
(chromaticity) A + C invention 3.01 3.84 4.88 A + B comparative 1.57 0.58 1.67

Mixing the colour composition (A) with the oxidizing composition (C) free of phosphoric acid, according to the invention, leads to a higher C* value, and therefore to better chromaticity, compared to mixing the colour composition (A) with the oxidizing composition (B) including phosphoric acid.

Furthermore, it is observed that the application of the composition resulting from the mixture between the coloring composition (A) and the oxidizing composition (C) leads to the improvement of the cosmetic properties of the hair, in particular its shine.

The composition obtained by mixing compositions (A) and (C) according to the invention thus made it possible to improve the chromaticity of the color and the cosmetic properties of the hair, in particular its shine.

Claims (15)

Composition obtained by mixing:
- of at least one colouring composition (C1) comprising (i) one or more oxidation dyes, (ii) one or more fatty acids, (iii) one or more alkali metals, and (iv) one or more non-ionic alkylpolyglucoside surfactants, and
- of at least one oxidizing composition (C2) free of phosphoric acid and comprising (v) one or more chemical oxidizing agents and (vi) one or more carboxylic acids different from the fatty acid(s) (ii). Composition according to claim 1, characterized in that the oxidation dyes (i) are selected from oxidation bases, couplers, and mixtures thereof. Composition according to the preceding claim, characterized in that the oxidation bases are selected from paraphenylenediamines, bis(phenyl)alkylenediamines, para-aminophenols, ortho-aminophenols, heterocyclic bases, and corresponding addition salts, their solvates and/or the solvates of their salts and mixtures thereof; more preferably from 2-methoxymethyl-para-phenylenediamine, 2-β-hydroxyethyl-paraphenylenediamine, 2-γ-hydroxypropyl-para-phenylenediamine, and their addition salts, their solvates and/or the solvates of their salts and mixtures thereof. Composition according to any one of the preceding claims, characterized in that the fatty acids (ii) comprise at least one carboxylic acid group and one alkyl chain, linear or branched, saturated or unsaturated, in particular unsaturated, comprising from 10 to 30 carbon atoms, in particular from 14 to 22 carbon atoms. Composition according to claim 1 or 4, characterized in that the fatty acids (ii) are liquid fatty acids, in particular selected from the group consisting of oleic acid, linoleic acid, linolenic acid, arachidonic acid, isostearic acid, isopalmitic acid and mixtures thereof, more preferably oleic acid. Composition according to any one of the preceding claims, characterized in that the alkali agents (iii) are selected from alkanolamines such as monoethanolamine, diethanolamine, triethanolamine; ammonia, carbonates or bicarbonates such as sodium (hydrogen)carbonate and potassium (hydrogen)carbonate, alkali or alkaline earth metal silicates or metasilicates such as sodium metasilicate and mixtures thereof, more preferably from ammonia and alkanolamines, better from alkanolamines, better still the alkali agent is monoethanolamine. Composition according to any one of the preceding claims, characterized in that the non-ionic surfactant(s) of the alkyl(poly)glycoside type are selected from (alkyl C6-C24)(poly)glycosides, preferably from (alkyl C8-C18)(poly)glycosides, preferably selected from coco-glucoside, lauryl glucoside, caprylyl/capryl glucoside, cetearyl glucoside and mixtures thereof, preferably cetearyl glucoside. Composition according to any one of the preceding claims, characterized in that the colouring composition (C1) further comprises one or more fatty alcohols, preferably selected from cetyl alcohol, stearyl alcohol and mixtures thereof such as cetylstearyl or cetearyl alcohol, oleic alcohol and mixtures thereof. Composition according to any one of the preceding claims, characterized in that the colouring composition (C1) further comprises one or more polyols, preferably selected from propane-1,3-diol, glycerin and mixtures thereof, in particular 1,3-propanediol. Composition according to any one of the preceding claims, characterized in that the colouring composition (C1) further comprises one or more polysaccharides. Composition according to any one of the preceding claims, characterized in that the chemical oxidizing agents (v) are selected from hydrogen peroxide, urea peroxide, alkali metal bromates, persalts such as perborates and persulfates, peracids and oxidase enzymes (with their possible cofactors), and mixtures thereof; preferably, the chemical oxidizing agent(s) are selected from hydrogen peroxide, persalts, and mixtures thereof; more preferably the chemical oxidizing agent is hydrogen peroxide. Composition according to any one of the preceding claims, characterized in that the carboxylic acids (vi), other than the fatty acids (ii), correspond to the following formula (I) and/or one of its salts:

in which:

• U represents a monovalent group when n is 0 or a polyvalent group when n is greater than or equal to 1, hydrocarbon comprising from 1 to 8 carbon atoms, saturated or unsaturated, cyclic or non-cyclic, aromatic or non-aromatic, possibly interrupted by one or more heteroatoms and/or possibly substituted, in particular by one or more hydroxy groups; preferably U represents a monovalent ( _C1 - _C6 )alkyl or polyvalent ( _C1 - _C6 )alkylene group possibly substituted by one or more hydroxy and/or amino groups,
• n represents an integer between 0 and 10 inclusive, preferably n is between 0 and 5, such that between 0 and 2;

preferably the carboxylic acid is chosen from glycolic acid, citric acid, lactic acid, tartaric acid or one of their salts, preferably glycolic acid or lactic acid, citric acid and/or one of their salts, better citric acid and/or one of its salts. A method for coloring keratin fibers, in particular human keratin fibers such as hair, comprising applying to said fibers a composition as defined according to any one of claims 1 to 12. Use of a composition according to any one of claims 1 to 12 for coloring keratin fibers, in particular human keratin fibers such as hair. A multi-compartment device comprising at least a first compartment containing the composition (C1) as defined according to any one of claims 1 to 10 and at least a second compartment containing the composition (C2) as defined according to any one of claims 1, 11 and 12.