FR3130577A1 - Composition comprising two polyols different from each other, an alkaline agent and a colorant - Google Patents

Abstract

The present invention relates to a cosmetic composition comprising two polyols different from each other, at least one of which is propane-1,3-diol, at least one alkaline agent and at least one colorant. The invention also relates to a process for dyeing keratin fibres, in particular human keratin fibers such as the hair, using said cosmetic composition. The invention further relates to the use of said cosmetic composition for coloring keratin fibres, in particular human keratin fibers such as the hair. A further subject of the invention is a device with multiple compartments comprising at least one compartment containing the cosmetic composition according to the invention.

Description

Composition comprising two polyols different from each other, an alkaline agent and a colorant

The present invention relates to a cosmetic composition comprising two polyols different from each other, at least one of which is propane-1,3-diol, at least one alkaline agent and at least one colorant.

The present invention also relates to a process for dyeing keratin fibres, in particular human keratin fibers such as the hair, using said cosmetic composition.

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

A further subject of the invention is a multi-compartment device comprising at least one compartment containing the cosmetic composition according to the invention.

In processes for dyeing keratin fibres, it is known to dye keratin fibers by various techniques using direct dyes for non-permanent dyes or oxidation dye precursors for permanent dyes.

Non-permanent coloring or direct coloring consists in dyeing the keratin fibers with dye compositions containing direct dyes. These dyes are colored and coloring molecules with an affinity for keratin fibres. They are applied to the keratin fibers for the time necessary to obtain the desired coloration, then rinsed off.

Some of these dyes can be used under lightening conditions, which makes it possible to obtain visible colorations on dark hair.

It is also known to dye keratin fibers permanently by oxidation dyeing. This coloring technique consists in applying to the keratin fibers a composition containing dye precursors such as oxidation bases and couplers. These precursors under the action of an oxidizing agent will form one or more colored species in the hair.

However, the coloring performances obtained with the compositions currently available on the market do not meet consumer expectations, particularly in terms of color build-up, power and chromaticity. In fact, after application to the keratin fibers, the tinctorial power obtained may not be entirely satisfactory, or even low, and lead to a restricted range of colors. The colorings may also not be sufficiently tenacious in the face of external agents such as light, shampoos, perspiration and also be too selective, that is to say that the difference in coloring is too great along the same keratin fiber which is sensitized differently between its tip and its root.

The compositions also tend to evolve over time, which affects their performance in terms of coloring.

Furthermore, consumers are also looking for compositions that are more respectful of the environment.

Thus, there is a real need to provide a composition for coloring keratin fibres, in particular human keratin fibers such as the hair, which does not have the drawbacks mentioned above, that is to say which is capable to lead to good performance, in particular in terms of color rise, power and chromaticity, while having low selectivity and good tenacity, for a wide range of shades and which is capable of leading to good dyeing performance, even after a period of storage, while having good qualities of use. These compositions must also meet the environmental concerns of consumers.

The subject of the present invention is therefore a cosmetic composition comprising:
(i) propane-1,3-diol, in a total content greater than or equal to 20% by weight, relative to the total weight of the composition,
(ii) one or more alkaline agents,
(iii) one or more additional polyols other than propane-1,3-diol, and
(iv) one or more dyes chosen from oxidation dyes, direct dyes and mixtures thereof.

The composition according to the invention leads to good dyeing properties with lower contents of dye(s) and/or oxidizing agent(s).

Propane-1,3-diol is also an environmentally friendly solvent that can be produced biologically. It therefore also responds to consumer demand for cosmetic products, in particular intended for the coloring of keratin fibers, which are more environmentally friendly.

The composition according to the invention therefore makes it possible to achieve the above objectives, in particular in terms of increase in color, power of the coloring, chromaticity, selectivity, tenacity of the coloring, in particular with shampoos, as well as good qualities of use, in particular an easy application all along the fibre.

The composition according to the invention also makes it possible to lead to good cosmetic properties, in particular in terms of shine, a more natural feel, and a good level of comfort for the scalp.

The present invention also relates to a process for dyeing keratin fibers, in particular human keratin fibers such as the hair, comprising the application to said fibers of a cosmetic composition as defined above, optionally after mixing with one or several other composition(s) different from said cosmetic composition.

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

The present invention also relates to a device with multiple compartments comprising at least a first compartment containing the cosmetic composition according to the invention as described above, and optionally at least a second compartment containing one or more chemical oxidizing agents or another composition different from said cosmetic composition.

Other objects, characteristics, aspects and advantages of the invention will appear even more clearly on reading the description and the example which follow.

In what follows, and unless otherwise indicated, the limits of a range of values are included in this range, in particular in the expressions “included between” and “ranging from … to …”.
Furthermore, the expression “at least one” used in the present description is equivalent to the expression “one or more”.

i) Propane-1,3-diol

The cosmetic composition according to the present invention comprises propane-1,3-diol.

The total content of propane-1,3-diol, present in the cosmetic composition according to the invention, is greater than or equal to 20% by weight, relative to the total weight of the composition. Preferably, the total propane-1,3-diol content ranges from 30 to 50% by weight, and more preferably from 35 to 45% by weight, relative to the total weight of the composition.

ii) Alkaline Agent

The cosmetic composition according to the present invention also comprises one or more alkaline agents.

The alkaline agent(s) can be chosen from inorganic, organic or hybrid alkaline agents.

Within the meaning of the present invention, the terms “alkaline agent” or “alkalizing agent” are used interchangeably.

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

The organic basifying 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.

By alkanolamine is meant an organic amine comprising a primary, secondary or tertiary amine function, and one or more alkyl groups, linear or branched, C ₁ to C ₈ carrying one or more hydroxyl radicals.

The organic amines chosen from alkanolamines such as mono-, di- or tri-alkanolamines, comprising one to three C ₁ to C ₄ hydroxyalkyl radicals, which may or may not be identical, 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, triisopropanol-amine, 2-amino-2-methyl-1,3-propanediol, 3-amino-1,2-propanediol, 3-dimethylamino-1,2-propanediol, tris-hydroxymethylamino- methane and their mixtures.

Advantageously, the amino acids are basic amino acids comprising an additional amine function. Such basic amino acids are preferably selected from histidine, lysine, arginine, ornithine, citrulline, and mixtures thereof.

The organic amine can also be chosen from organic amines of the heterocyclic type. Mention may in particular be made, in addition to the histidine already mentioned in the amino acids, of pyridine, piperidine, imidazole, triazole, tetrazole, benzimidazole. The organic amine can also be chosen from amino acid dipeptides. As amino acid dipeptides which can be used in the present invention, mention may in particular be made of carnosine, anserine and balenine. The organic amine can also be chosen from compounds comprising a guanidine function. As amines of this type different from arginine which can be used in the present invention, mention may in particular be made of 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.)

As hybrid compounds, it is possible in particular to use guanidine carbonate or monoethanolamine hydrochloride.

The alkaline agent(s) ii) are preferably chosen from alkanolamines such as monoethanolamine, diethanolamine, triethanolamine; ammonia; carbonates or bicarbonates of alkali or alkaline earth metals such as sodium (hydrogen)carbonate and potassium (hydrogen)carbonate; silicates or metasilicates of alkali or alkaline earth metals such as sodium metasilicate; and mixtures thereof, more preferably from ammonia, alkanolamines and mixtures thereof, and better still from alkanolamines and mixtures thereof. Even more preferentially, the alkaline agent is monoethanolamine.

Preferably, the alkaline agent(s) are organic.

In a particular embodiment, the cosmetic composition according to the invention is free of ammonia.

By “ammonia-free”, it is meant that the cosmetic composition according to the invention does not comprise ammonia. In other words, the ammonia content in the cosmetic composition of the present invention is 0% by weight, relative to the weight of the composition.

Advantageously, the total content of the alkaline agent(s) ii), present in the cosmetic composition according to the invention, ranges from 0.01 to 10% by weight, preferably from 0.05 to 8% by weight, more preferably from 0 1 to 5% by weight, relative to the total weight of the composition.

In a particular embodiment, the total content of the alkaline agent(s) ii) chosen from alkanolamines and their mixtures, preferably monoethanolamine, present in the cosmetic composition according to the invention, preferably ranges from 0.01 to 10% by weight, more preferably from 0.05 to 8% by weight, more preferably still from 0.1 to 5% by weight, relative to the total weight of the composition.

Advantageously, the pH of the cosmetic composition according to the invention is between 5 and 8, preferably between 6 and 7.

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

iii) Additional polyols

The cosmetic composition according to the present invention further comprises one or more additional polyols (iii) other than propane-1,3-diol.

The additional polyol(s) (iii) present in the cosmetic composition of the invention are preferably chosen from the polyols of formula (I) below and mixtures thereof:

(I)
formula (I) in which:
- R′ ₁ , R′ ₂ , R′ ₃ and R′ ₄ , which are identical or different, independently denote a hydrogen atom, a linear or branched alkyl radical, C ₁ to C ₆ or a C ₁ to C ₆ mono or polyhydroxyalkyl radical,
- A denotes an oxygen atom or an alkylene radical, saturated or unsaturated, linear or branched containing from 1 to 18 carbon atoms, this radical comprises from 0 to 9 oxygen atoms, but no hydroxyl group, and
- m denotes 0 or 1;
it being understood that when R′ ₁ , R′ ₂ , R′ ₃ and R′ ₄ are identical and represent a hydrogen atom, then A does not represent a methylene group.

According to a first embodiment of the invention, the additional polyol(s) (iii) are preferably chosen from polyols of formula (I), in which m is 0, and mixtures thereof, and more preferably from propylene glycol ( propane-1,2-diol), 1,2,3-propanetriol, pinacol (2,3-dimethyl 2,3-butanediol), 1,2,3-butanetriol, 2,3-butanediol, sorbitol and mixtures thereof.

According to another embodiment of the invention, the additional polyol(s) (iii) are preferably chosen from the polyols of formula (I), in which m is 1 and R′ ₁ , R′ ₂ , R′ ₃ , and R' ₄ , which are identical or different, denote, independently of each other, a hydrogen atom or a C ₁ to C ₆ alkyl radical, and whose molecular weight is greater than or equal to 200, and their mixtures. According to this embodiment, the additional polyol(s) are advantageously chosen from polyethylene glycols and mixtures thereof, and more particularly the product named PEG-6 or PEG-8 in the CTFA work (International Cosmetic Ingredient Dictionary, Seventh Edition).

According to yet another embodiment of the invention, the additional polyol(s) (iii) are preferably chosen from the polyols of formula (I), in which m is 1 and R′ ₁ , R′ ₂ , R′ ₃ , and R' ₄ , which are identical or different, denote, independently of one another, a hydrogen atom or a C ₁ to C ₆ alkyl radical, and whose molecular weight is less than 200, and mixtures thereof . According to this particular embodiment, the additional polyol(s) are preferably chosen from 3-methyl-1,3,5-pentanetriol, 1,2,4-butanetriol, 1,5-pentanediol, 2-methyl -1,3-propanediol, 1,3-butanediol, 3-methyl-1,5-pentanediol, neopentylglycol (2,2-dimethyl-1,3-propanediol), isoprene glycol (3-methyl-1 ,3-butanediol), hexylene glycol (2-methyl-2,4-pentanediol), dipropylene glycol and mixtures thereof, and more preferably from hexylene glycol, dipropylene glycol and mixtures thereof.

Preferably, the molecular weight (MW) of said polyol(s) present in the composition of the invention is between 50 and 350, more preferably between 60 and 200, and better still between 90 and 150.

Preferably, the additional polyol(s) (iii), other than propane-1,3-diol, are chosen from diols and mixtures thereof, more preferably from the compounds of formula (I) in which, R′ ₁ , R′ ₂ , R′ ₃ and R′ ₄ , which are identical or different, independently denote a hydrogen atom or a C ₁ to C ₆ alkyl radical, and mixtures thereof.

Advantageously, the additional polyol(s) (iii), different from propane-1,3-diol, are chosen from propylene glycol, pinacol, 2,3-butanediol, polyethylene glycols, 1,5-pentanediol, 2 -methyl-1,3-propanediol, 1,3-butanediol, 3-methyl-1,5-pentanediol, neopentyl glycol, isoprene glycol, hexylene glycol, dipropylene glycol and mixtures thereof; preferably from hexylene glycol, dipropylene glycol and mixtures thereof.

More preferentially, the cosmetic composition according to the present invention comprises at least two distinct additional polyols iii), different from propane-1,3-diol. Better still, the cosmetic composition according to the present invention comprises a mixture of hexylene glycol and dipropylene glycol.

According to a particular embodiment, the cosmetic composition of the invention comprises:
(i) propane-1,3-diol, in a total content greater than or equal to 20% by weight, relative to the total weight of the composition,
(ii) one or more alkaline agents,
(iii) at least two distinct additional polyols, other than propane-1,3-diol, preferably a mixture of hexylene glycol and dipropylene glycol, and
(iv) one or more dyes chosen from oxidation dyes, direct dyes and mixtures thereof.

The total content of the additional polyol(s) (iii), other than propane-1,3-diol, present in the cosmetic composition according to the invention, preferably ranges from 0.1 to 20% by weight, more preferably from 0. 5 to 15% by weight, and better still from 1 to 10% by weight, relative to the total weight of the composition.

Advantageously, the weight ratio (R) between the total content of propane-1,3-diol and the total content of additional polyols (iii), different from propane-1,3-diol, present in the cosmetic composition according to the invention , is greater than or equal to 1, preferably greater than or equal to 2, and more preferably greater than or equal to 5. Better still, this weight ratio (R) ranges from 1 to 15, and even more preferably from 5 to 15.

iv) Dyes

The cosmetic composition according to the present invention also comprises one or more dyes chosen from oxidation dyes, direct dyes and mixtures thereof.

Oxidation dyes

The oxidation dyes that can be used in the present invention can be chosen from one or more oxidation bases, optionally combined with one or more couplers.

Preferably, the cosmetic composition according to the present invention comprises one or more oxidation bases.

Oxidation bases can be present as salts, solvates and/or solvates of salts.

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

Furthermore, the solvates of the oxidation bases more particularly represent the hydrates of said oxidation bases and/or the combination of said oxidation bases with a linear or branched C ₁ to C ₄ alcohol such as methanol, ethanol, isopropanol, n-propanol. Preferably, the solvates are hydrates.

The oxidation bases can be chosen from para-phenylenediamines, bis-phenylalkylenediamines, para-aminophenols, ortho-aminophenols, heterocyclic bases and their addition salts, their solvates and solvates of their salts, and mixtures thereof.

Among the paraphenylenediamines, mention may be made, by way of example, of paraphenylenediamine, paratoluylenediamine, 2-chloroparaphenylenediamine, 2,3-dimethyl paraphenylenediamine, 2,6-dimethyl paraphenylenediamine, 2,6-diethyl paraphenylenediamine, 2 ,5-dimethyl paraphenylenediamine, N,N-dimethyl paraphenylenediamine, N,N-diethyl paraphenylenediamine, N,N-dipropyl paraphenylenediamine, 4-amino N,N-diethyl 3-methyl aniline, N,N-bis -(β-hydroxyethyl) paraphenylenediamine, 4-N,N-bis-(β-hydroxyethyl)amino 2-methyl aniline, 4-N,N-bis-(β-hydroxyethyl)amino 2-chloro aniline, 2 -β-hydroxyethyl para-phenylenediamine, 2-methoxymethyl-para-phenylenediamine, 2-γ-hydroxypropyl-para-phenylenediamine, 2-fluoro para-phenylenediamine, 2-isopropyl para-phenylenediamine, N-(β-hydroxypropyl) para-phenylenediamine, 2 -hydroxymethyl paraphenylenediamine, N,N-dimethyl 3-methyl paraphenylenediamine, N,N-(ethyl, β-hydroxyethyl) paraphenylenediamine, N-(β,γ-dihydroxypropyl) paraphenylenediamine, N-(4'-aminophenyl) paraphenylenediamine, N-phenyl paraphenylenediamine, 2-β-hydroxyethyloxy paraphenylenediamine, 2-β-acetylaminoethyloxy paraphenylenediamine, N-(β-methoxyethyl) paraphenylenediamine, 4-aminophenylpyrrolidine, 2-thienyl paraphenylenediamine, 2- β hydroxyethylamino 5-amino toluene, 3-hydroxy 1-(4'-aminophenyl)pyrrolidine and their addition salts, their solvates and the solvates of their salts.

Among the para-phenylenediamines mentioned above, para-phenylenediamine, para-toluylenediamine, 2-isopropyl para-phenylenediamine, 2-β-hydroxyethyl para-phenylenediamine, 2-methoxymethyl-para-phenylenediamine, 2-γ-hydroxypropyl-para-phenylenediamine, 2 -β-hydroxyethyloxy paraphenylenediamine, 2,6-dimethyl paraphenylenediamine, 2,6-diethyl paraphenylenediamine, 2,3-dimethyl paraphenylenediamine, N,N-bis-(β-hydroxyethyl) paraphenylenediamine, 2-chloro paraphenylenediamine, 2-β-acetylaminoethyloxy paraphenylenediamine, and their addition salts, their solvates and the solvates of their salts are particularly preferred.

Among the bis-phenylalkylenediamines, mention may be made by way of example of N,N'-bis-(β-hydroxyethyl) N,N'-bis-(4'-aminophenyl) 1,3-diamino propanol, 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-methyl-aminophenyl)tetramethylenediamine, N,N'-bis-(ethyl)N,N' -bis-(4'-amino, 3'-methylphenyl) ethylenediamine, 1,8-bis-(2,5-diaminophenoxy)-3,6-dioxaoctane, and their addition salts, solvates and solvates of their salts.

Among the para-aminophenols, mention may be made, by way of example, of para-aminophenol, 4-amino 3-methyl phenol, 4-amino 3-fluoro phenol, 4-amino-3-chlorophenol, 4- amino 3-hydroxymethyl phenol, 4-amino 2-methyl phenol, 4-amino 2-hydroxymethyl phenol, 4-amino 2-methoxymethyl phenol, 4-amino 2-aminomethyl phenol, 4-amino 2-(β -hydroxyethyl aminomethyl) phenol, 4-amino 2-fluoro phenol, and their addition salts, their solvates and the solvates of their salts.

Among the ortho-aminophenols, mention may be made, by way of example, of 2-amino phenol, 2-amino 5-methyl phenol, 2-amino 6-methyl phenol, 5-acetamido 2-amino phenol, and their addition salts, their solvates and the solvates of their salts.

Among the heterocyclic bases, mention may be made, by way of example, of pyridine derivatives, pyrimidine derivatives and pyrazole derivatives.

Among the pyridine derivatives, mention may be made of the compounds described for example in patents GB 1,026,978 and GB 1,153,196, such as 2,5-diamino pyridine, 2-(4-methoxyphenyl)amino 3-amino pyridine, 3,4-diamino pyridine, and their addition salts, their solvates and the solvates of their salts.

Other useful pyridine oxidation bases in the present invention are the 3-amino pyrazolo-[1,5-a]-pyridine oxidation bases or their addition salts described for example in patent application FR 2801308. By way of example, mention may be made of pyrazolo[1,5-a]pyridin-3-ylamine; 2-acetylamino pyrazolo-[1,5-a]pyridin-3-ylamine; 2-morpholin-4-yl-pyrazolo[1,5-a]pyridin-3-ylamine; 3-amino-pyrazolo[1,5-a]pyridin-2-carboxylic acid; 2-methoxy-pyrazolo[1,5-a]pyridin-3-ylamino; (3-amino-pyrazolo[1,5-a]pyridin-7-yl)-methanol; 2-(3-amino-pyrazolo[1,5-a]pyridin-5-yl)-ethanol; 2-(3-amino-pyrazolo[1,5-a]pyridin-7-yl)-ethanol; (3-amino-pyrazolo[1,5-a]pyridin-2-yl)-methanol; 3,6-diamino-pyrazolo[1,5-a]pyridine; 3,4-diamino-pyrazolo[1,5-a]pyridine; pyrazolo[1,5-a]pyridine-3,7-diamine; 7-morpholin-4-yl-pyrazolo[1,5-a]pyridin-3-ylamine; pyrazolo[1,5-a]pyridine-3,5-diamine; 5-morpholin-4-yl-pyrazolo[1,5-a]pyridin-3-ylamine; 2-[(3-amino-pyrazolo[1,5-a]pyridin-5-yl)-(2-hydroxyethyl)-amino]-ethanol; 2-[(3-amino-pyrazolo[1,5-a]pyridin-7-yl)-(2-hydroxyethyl)-amino]-ethanol; 3-amino-pyrazolo[1,5-a]pyridin-5-ol; 3-amino-pyrazolo[1,5-a]pyridin-4-ol; 3-amino-pyrazolo[1,5-a]pyridin-6-ol; 3-amino-pyrazolo[1,5-a]pyridin-7-ol; 2-[(3-amino-pyrazolo[1,5-a]pyridin-2-yl)oxy ethanol as well as their addition salts, their solvates and the solvates of their salts.

Among the pyrimidine derivatives, mention may be made of 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-tetra-aminopyrimidine, 4-hydroxy 2,5,6-triaminopyrimidine, 2-hydroxy 4,5,6-triaminopyrimidine, 2 ,4-dihydroxy 5,6-diaminopyrimidine, 2,5,6-triaminopyrimidine and their addition salts and their tautomeric forms, when a tautomeric equilibrium exists.

Among the pyrazole derivatives, mention may be made of 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-methyl pyrazole, 4,5-diamino 1-(β-hydroxyethyl) pyrazole, 3,4-diamino pyrazole, 4,5-diamino 1-(4'-chlorobenzyl) pyrazole, 4,5 -diamino 1,3-dimethyl pyrazole, 4,5-diamino 3-methyl 1-phenyl pyrazole, 4,5-diamino 1-methyl 3-phenyl pyrazole, 4-amino 1,3-dimethyl 5-hydrazino pyrazole , 1-benzyl 4,5-diamino 3-methyl pyrazole, 4,5-diamino 3-tert-butyl 1-methyl pyrazole, 4,5-diamino 1-tert-butyl 3-methyl pyrazole, 4, 5-diamino 1-(β-hydroxyethyl) 3-methyl pyrazole, 4,5-diamino 1-ethyl 3-methyl pyrazole, 4,5-diamino 1-ethyl 3-(4'-methoxyphenyl) pyrazole, 4 ,5-diamino 1-ethyl 3-hydroxymethyl pyrazole, 4,5-diamino 3-hydroxymethyl 1-methyl pyrazole, 4,5-diamino 3-hydroxymethyl 1-isopropyl pyrazole, 4,5-diamino 3-methyl 1 -isopropyl pyrazole, 4-amino 5-(2'-aminoethyl)amino 1,3-dimethyl pyrazole, 3,4,5-triamino pyrazole, 1-methyl 3,4,5-triamino pyrazole, 3, 5-diamino 1-methyl 4-methylamino pyrazole, 3,5-diamino 4-(β-hydroxyethyl)amino 1-methyl pyrazole, and their addition salts, their solvates and the solvates of their salts. It is also possible to use 4-5-diamino 1-(β-methoxyethyl)pyrazole.

Preferably, a 4,5-diaminopyrazole will be used and even more preferably 4,5-diamino-1-(β-hydroxyethyl)-pyrazole and/or one of its salts, solvates, solvates of its salts.

As pyrazolic derivatives, mention may also be made of the diamino N,N-dihydropyrazolopyrazolones and in particular those described in application FR-A-2 886 136 such as the following compounds and their addition salts: 2,3-diamino-6 ,7-dihydro-1H,5H-pyrazolo[1,2-a]pyrazol-1-one, 2-amino-3-ethylamino-6,7-dihydro-1H,5H-pyrazolo[1,2-a]pyrazol -1-one, 2-amino-3-isopropylamino-6,7-dihydro-1H,5H-pyrazolo[1,2-a]pyrazol-1-one, 2-amino-3-(pyrrolidin-1-yl) -6,7-dihydro-1H,5H-pyrazolo[1,2-a]pyrazol-1-one, 4,5-diamino-1,2-dimethyl-1,2-dihydro-pyrazol-3-one, 4 ,5-diamino-1,2-diethyl-1,2-dihydro-pyrazol-3-one, 4,5-diamino-1,2-di-(2-hydroxyethyl)-1,2-dihydro-pyrazol-3 -one, 2-amino-3-(2-hydroxyethyl)amino-6,7-dihydro-1H,5H-pyrazolo[1,2-a]pyrazol-1-one, 2-amino-3-dimethylamino-6, 7-dihydro-1H,5H-pyrazolo[1,2-a]pyrazol-1-one, 2,3-diamino-5,6,7,8-tetrahydro-1H,6H-pyridazino[1,2-a] pyrazol-1-one, 4-amino-1,2-diethyl-5-(pyrrolidin-1-yl)-1,2-dihydro-pyrazol-3-one, 4-amino-5-(3-dimethylamino-pyrrolidin -1-yl)-1,2-diethyl-1,2-dihydro-pyrazol-3-one, 2,3-diamino-6-hydroxy-6,7-dihydro-1H,5H-pyrazolo[1,2- a]pyrazol-1-one, their salts, their solvates and/or solvates of their salts.

It will be preferred to use 2,3-diamino-6,7-dihydro-1H,5H-pyrazolo[1,2-a]pyrazol-1-one and/or one of its salts, solvates or solvates of its salts.

As heterocyclic bases, 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-[(3-amino-pyrazolo[1,5-a]pyridin-2-yl)oxy ethanol and/or one of their salts, solvates or solvates of its salts.

Preferably, the oxidation base(s) are chosen from para-phenylenediamines, bis(phenyl)alkylenediamines, para-aminophenols, ortho-aminophenols, heterocyclic bases, their addition salts, their solvates, solvates their salts and their mixtures; more preferably from para-aminophenol, 2,3-diaminodihydropyrazolo pyrazolone, 2-methoxymethyl-para-phenylenediamine, 2-β-hydroxyethyl-para-phenylenediamine, 2-γ-hydroxypropyl-para-phenylenediamine, their salts of addition, their solvates, the solvates of their salts and their mixtures.

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

The coupler(s) that can be used can be chosen from the couplers conventionally used for dyeing keratin fibers.

Preferably, the couplers are chosen from meta-phenylenediamines, meta-aminophenols, meta-diphenols, naphthalene couplers, heterocyclic couplers as well as their addition salts, their solvates, the solvates of their salts and their mixtures.

By way of examples, mention may be made of 1,3-dihydroxy benzene, 1,3-dihydroxy-2-methyl benzene, 4-chloro-1,3-dihydroxy benzene, 1-hydroxy-3-amino benzene , 1-methyl-2-hydroxy-4-b-hydroxyethylamino benzene, 4-amino-2-hydroxy toluene, 5-amino-6-chloro-2-methyl phenol, 2,4-diamino-1- (b-hydroxyethyloxy) benzene, 2-amino-4-(b-hydroxyethylamino)-1-methoxybenzene, 1,3-diamino benzene, 1,3-bis-(2,4-diaminophenoxy) propane, 3 -ureido aniline, 3-ureido-1-dimethylamino benzene, sesamol, 1-b-hydroxyethylamino-3,4-methylenedioxybenzene, α-naphthol, 2-methyl-1-naphthol, 6-hydroxy indole , 4-hydroxy indole, 4-hydroxy-N-methyl indole, 5-methoxy-6-hydroxy indole, 2-amino-3-hydroxy pyridine, 6-hydroxy benzomorpholine, 2-amino 4-hydroxyethylaminoanisole , 3-amino-6-methoxy-2-methylamino pyridine, 3,5-diamino-2,6-dimethoxypyridine, 1-N-(b-hydroxyethyl)amino-3,4-methylene dioxybenzene, 2, 6-bis-(b-hydroxyethylamino)toluene, 6-hydroxy indoline, 2,6-dihydroxy-4-methyl pyridine, 2-chloro-3,5-diaminopyridine, 2-chloro-3,5-diamino -6-methoxypyridine, 2-chloro-3,5-diamino-6-methylpyridine, 1-H-3-methyl pyrazole 5-one, 1-phenyl 3-methyl pyrazole 5-one, 4-(3 ,5-diaminopyridin-2-yl)-1-(2-hydroxyethyl)-1-methylpiperazin-1-ium chloride, 2,6-dimethyl pyrazolo-[1,5-b]-1,2,4-triazole , 2,4,6-trimethoxyaniline hydrochlorate, 2,6-dimethyl-[3,2-c]-1,2,4-triazole, 6-methyl pyrazolo-[1,5-a]-benzimidazole, 2,6 diaminopyrazine, their addition salts, their solvates, the solvates of their salts, and their mixtures.

Preferably, the coupler(s) used in the invention are chosen from 1,3-dihydroxy benzene, 1,3-dihydroxy-2-methyl benzene, 4-chloro-1,3-dihydroxy benzene, 1-hydroxy-3-amino benzene, 1-methyl-2-hydroxy-4-b-hydroxyethylamino benzene, 4-amino-2-hydroxy toluene, 5-amino-6-chloro-2-methyl phenol, 2,4-diamino-1-(b-hydroxyethyloxy) benzene, α-naphthol, 6-hydroxy indole, 2-amino-3-hydroxy pyridine, 6-hydroxy benzomorpholine, 3-amino-6- methoxy-2-methylamino pyridine, 2-amino 4-hydroxyethylaminoanisole, hydroxyethyl-3,4-methylenedioxyaniline, 2-amino 5-ethylphenol, their addition salts, their solvates, the solvates of their salts, and their mixtures.

Even more preferably, the coupler(s) used in the invention are chosen from 3-amino-6-methoxy-2-methylamino pyridine, 6-hydroxy benzomorpholine, 2,4-diamino-1-(b- hydroxyethyloxy) benzene, 2-amino-3-hydroxy pyridine, 5-amino-6-chloro-2-methyl phenol, 1-methyl-2-hydroxy-4-b-hydroxyethylamino benzene, 2-amino 4- hydroxyethylaminoanisole, hydroxyethyl-3,4-methylenedioxyaniline, 2-amino 5-ethylphenol, 1-hydroxy 3-amino benzene, their addition salts, their solvates, the solvates of their salts and their mixtures.

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

Furthermore, the solvates more particularly represent the hydrates of these couplers and/or the association of these couplers with a linear or branched C ₁ to C ₄ alcohol such as methanol, ethanol, isopropanol, n- propanol. Preferably, the solvates are hydrates.

Preferably, the couplers are chosen from 6-hydroxy benzomorpholine, hydroxyethyl-3,4-methylenedioxyaniline, 4-amino-2-hydroxytoluene, 2-methylresorcinol, 2,4-diaminophenoxyethanol, meta-aminophenol, 2-amino 5-ethylphenol, their addition salts, their salts, the solvates of their salts and their mixtures.

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

Advantageously, when they are present in the cosmetic composition of the invention, the total content of the oxidation base(s) ranges from 0.0001 to 10% by weight, preferably from 0.005 to 7% by weight, and more preferably from 0.01 to 4% by weight, relative to the total weight of the composition.

Advantageously, when they are present in the cosmetic composition of the invention, the total content of the coupler(s) ranges from 0.0001 to 10% by weight, preferably from 0.005 to 7% by weight, and more preferably from 0. 01 to 4% by weight, relative to the total weight of the composition.

Advantageously, when they are present in the cosmetic composition of the invention, the total content of the oxidation dye(s) ranges from 0.0001 to 10% by weight, preferably from 0.005 to 7% by weight, and more preferably from 0.01 to 4% by weight, relative to the total weight of the composition.

Direct dyes

By “direct dye”, we mean natural and/or synthetic dyes, different from oxidation dyes. These are dyes that will diffuse superficially on the fiber.

The synthetic direct dyes that can be used are, for example, chosen from those conventionally used in direct dyeing, and among which there may be mentioned all the aromatic and/or non-aromatic dyes in common use such as nitrobenzene, azo, hydrazono, nitrated ( hetero)aryl, tri(hetero)arylmethane, (poly)methine, carbonyl, azine, porphyrin, metalloporphyrine, quinone and in particular anthraquinone, indoamine, phthalocyanine and mixtures thereof.

Among the nitrobenzene direct dyes, mention may be made of: 1,4-diamino-2-nitrobenzene, 1-amino-2-nitro-4-b-hydroxyethylaminobenzene; 1-amino-2-nitro-4-bis(β-hydroxyethyl)-aminobenzene; 1,4-bis(b-hydroxyethylamino)-2-nitrobenzene; 1-b-hydroxyethylamino-2-nitro-4-bis-(β-hydroxyethylamino)-benzene; 1-b-hydroxyethylamino-2-nitro-4-aminobenzene; 1-β-hydroxyethylamino-2-nitro-4-(ethyl)(b-hydroxyethyl)-aminobenzene; 1-amino-3-methyl-4-β-hydroxyethylamino-6-nitrobenzene; 1-amino-2-nitro-4-β-hydroxyethylamino-5-chlorobenzene; 1,2-diamino-4-nitrobenzene; 1-amino-2-β-hydroxyethylamino-5-nitrobenzene; 1,2-bis-(β-hydroxyethylamino)-4-nitrobenzene; 1-amino-2-tris-(hydroxymethyl)-methylamino-5-nitrobenzene; 1-Hydroxy-2-amino-5-nitrobenzene; 1-Hydroxy-2-amino-4-nitrobenzene; 1-Hydroxy-3-nitro-4-aminobenzene; 1-Hydroxy-2-amino-4,6-dinitrobenzene; 1-β-hydroxyethyloxy-2-β-hydroxyethylamino-5-nitrobenzene; 1-Methoxy-2-β-hydroxyethylamino-5-nitrobenzene; 1-β-hydroxyethyloxy-3-methylamino-4-nitrobenzene; 1-β,γ-dihydroxypropyloxy-3-methylamino-4-nitrobenzene; 1-β-hydroxyethylamino-4-β,γ-dihydroxypropyloxy-2-nitrobenzene; 1-β,γ-dihydroxypropylamino-4-trifluoromethyl-2-nitrobenzene; 1-β-hydroxyethylamino-4-trifluoromethyl-2-nitrobenzene; 1-β-hydroxyethylamino-3-methyl-2-nitrobenzene; 1-β-aminoethylamino-5-methoxy-2-nitrobenzene; 1-Hydroxy-2-chloro-6-ethylamino-4-nitrobenzene; 1-Hydroxy-2-chloro-6-amino-4-nitrobenzene; 1-Hydroxy-6-bis-(β-hydroxyethyl)-amino-3-nitrobenzene; 1-β-hydroxyethylamino-2-nitrobenzene; 1-Hydroxy-4-β-hydroxyethylamino-3-nitrobenzene.

Azo direct dyes include: Basic Red 51, Basic Orange 31, Disperse Red 17, Acid Yellow 9, Acid Black 1, Basic Red 22, Basic Red 76, Basic Yellow 57, Acid Yellow 36, Acid Orange 7, Acid Red 33, Acid Red 35, Acid Yellow 23, Acid Orange 24, Disperse Black 9, Basic Brown 16, Basic Brown 17.

Among the hydrazono direct dyes, we can mention: Basic Yellow 87.

Among the nitro aryl direct dyes, mention may be made of: HC Blue 2, HC Yellow 2, HC Red 3, 4-hydroxypropylamino-3-nitrophenol, N,N'-bis-(2-hydroxyethyl)-2-nitro-phenylenediamine.

Among the triarylmethane direct dyes, mention may be made of: Basic Violet 1, Basic Violet 2, Basic Violet 3, Basic Violet 4, Basic Violet 14, Basic Blue 1, Basic Blue 7, Basic Blue 26, Basic green 1, Basic Blue 77 ( also called HC Blue 15), Acid Blue 1; Acid Blue 3; Acid Blue 7, Acid Blue 9; Acid Violet 49; Acid green 3; Acid green 5; Acid Green 50.

Quinone direct dyes include: Disperse Red 15, Solvent Violet 13, Acid Violet 43, Disperse Violet 1, Disperse Violet 4, Disperse Blue 1, Disperse Violet 8, Disperse Blue 3, Disperse Red 11, Acid Blue 62, Disperse Blue 7, Basic Blue 22, Disperse Violet 15, Basic Blue 99, as well as the following compounds: 1-N-methylmorpholiniumpropylamino-4-hydroxyanthraquinone, 1-aminopropylamino-4-methylaminoanthraquinone, 1-aminopropylamino-anthraquinone, 5-β-hydroxyethyl-1,4-diaminoanthraquinone, 2-aminoethylamino-anthraquinone, 1,4-bis-(β,γ-dihydroxypropylamino)-anthraquinone, Acid Blue 25, Acid Blue 43, Acid Blue 78, Acid Blue 129, Acid Blue 138, Acid Blue 140, Acid Blue 251, Acid Green 25, Acid Green 41, Acid Violet 42, Mordant Red 3, Acid Black 48, HC Blue 16.

Among the azine direct dyes, mention may be made of: Basic Blue 17, Basic Red 2.

Among the indoamine direct dyes, we can mention: 2-β-hydroxyethylamino-5-[bis-(β-4'-hydroxyethyl)amino]anilino-1,4-benzoquinone, 2-β-hydroxyethylamino-5-(2' -methoxy-4'-amino)anilino-1,4-benzoquinone, 3-N(2'-chloro-4'-hydroxy)phenyl-acetylamino-6-methoxy-1,4-benzoquinone imine, 3-N(3 '-Chloro-4'-methylamino)phenyl-ureido-6-methyl-1,4-benzoquinone imine, 3-[4'-N-(ethyl,carbamylmethyl)-amino]-phenyl-ureido-6-methyl-1 ,4-benzoquinone imine.

The natural direct dyes are for example chosen from lawsone, juglone, indigo, leuco indigo, indirubine, isatin, hennotannic acid, alizarin, carthamine, morine, purpurin, l carminic acid, kermesic acid, laccaic acid, purpurogalline, protocatechaldehyde, curcumin, spinulosin, apigenidin, orceins, carotenoids, betanin, chlorophylls, chlorophyllins, monascus, polyphenols or orthodiphenols.

Among the useful ortho-diphenols according to the invention, mention may be made of: catechin, quercetin, brazilin, hematein, hematoxylin, chlorogenic acid, caffeic acid, gallic acid, L DOPA, cyanidin, (-)-epicatechin, (-)-epigallocatechin, (- )-Epigallocatechin 3-gallate (EGCG), Isoquercetin, Pomiferin, Aesculetin, 6,7-Dihydroxy-3-(3-hydroxy-2,4-dimethoxyphenyl)coumarin, Santalin A and B, Mangiferin, Butein, Maritimetin, Sulfuretin, Robteine, Betanidin, Pericampylinone A., Theaflavin, Proanthocyanidin A2, Proanthocyanidin B2, Proanthocyanidin C1, Procyanidins DP 4-8, Tannic Acid, Purpurogalline, 5,6-Dihydroxy-2-methyl-1,4-naphthoquinone, Alizarin, Wedelolactone and the natural extracts containing them.

Advantageously, when they are present in the cosmetic composition of the invention, the total content of the direct dye(s) ranges 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 still from 0.05 to 5%, and even more preferably from 0.1 to 3% by weight, relative to the total weight of the composition.

Chemical oxidizing agents

The cosmetic composition according to the present invention may optionally also comprise one or more chemical oxidizing agents.

According to a particular embodiment, the cosmetic composition according to the invention comprises one or more chemical oxidizing agents.

According to another particular embodiment, the cosmetic composition according to the invention does not comprise chemical oxidizing agents. According to this embodiment, the cosmetic composition according to the invention is preferably mixed at the time of use with at least one oxidizing composition comprising one or more chemical oxidizing agents.

By “chemical oxidizing agent” is meant, within the meaning of the present invention, an oxidizing agent different from the oxygen in the air.

The chemical oxidizing agent(s) which can be used in the present invention may be chosen from hydrogen peroxide, urea peroxide, alkali metal bromates, persalts such as perborates and persulphates, in particular sodium persulphate, potassium persulphate and ammonium persulphate, peracids and oxidase enzymes (with their possible cofactors) among which mention may be made of peroxidases, 2-electron oxidoreductases such as uricases and 4-electron oxygenases such as laccases , and mixtures thereof; more preferably, the chemical oxidizing agent(s) are chosen from hydrogen peroxide, persalts, and mixtures thereof, more preferably hydrogen peroxide.

Advantageously, when they are present in the cosmetic composition according to the invention, the total content of the chemical oxidizing agent(s) ranges from 0.1 to 35% by weight, preferably from 0.5 to 25% by weight, and more preferably from 1 to 15% by weight, relative to the total weight of the composition.

According to a preferred embodiment, the cosmetic composition according to the invention comprises one or more chemical oxidizing agents chosen from hydrogen peroxide, persalts, and mixtures thereof, present in a total content preferably ranging from 0.1 to 35 % by weight, more preferably from 0.5 to 25% by weight, and better still from 1 to 15% by weight, relative to the total weight of the composition.

The cosmetic composition according to the present invention is preferably aqueous.

By “aqueous composition” according to the present invention, is meant a composition in which the amount of water is greater than or equal to 10% by weight, relative to the weight of the composition. Preferably, the amount of water is greater than or equal to 20% by weight, more preferably greater than or equal to 30% by weight of water, and better still greater than or equal to 35% by weight, relative to the total weight of the composition.

In addition to water, the composition according to the present invention may optionally comprise one or more organic solvents other than propane-1,3-diol (i) and additional polyols (iii) defined above.

By way of organic solvent, mention may be made, for example, of alkanols, linear or branched, C ₂ to C ₄ , such as ethanol and isopropanol; polyol ethers such as propylene glycol monomethyl ether, diethylene glycol monoethyl ether and monomethyl ether, as well as alcohols or aromatic ethers such as benzyl alcohol or phenoxyethanol, and mixtures thereof.

Additional compounds

The cosmetic composition according to the present invention may optionally also comprise one or more additional compounds different from the compounds defined above, preferably chosen from anionic surfactants, cationic surfactants, nonionic surfactants, amphoteric or zwitterionic surfactants, polymers cationic, anionic, non-ionic, amphoteric and mixtures thereof, thickeners, antioxidants, penetrating agents, conditioning agents, UV filters, anti-dandruff agents, antiseborrheic agents, vitamins and pro-vitamins including panthenol, sequestering agents, perfumes, buffers, dispersing agents, film-forming agents, ceramides, preservatives, opacifying agents, lubricants (or anti-caking agents) and their mixtures.

Preferably, when the additional compound(s) above are present in the cosmetic composition according to the invention, the additional compound(s) are generally present in a content comprised for each of them between 0.01 and 20% by weight. , relative to the total weight of the composition.

Of course, those skilled in the art will take care to choose this or these optional additional compounds in such a way that the advantageous properties intrinsically attached to the cosmetic composition of the invention are not, or substantially not, altered by the addition(s) considered.

Coloring process

The present invention also relates to a process for dyeing keratin fibers, in particular human keratin fibers such as the hair, comprising the application to said keratin fibers of a cosmetic composition as defined above, and optionally one or more agents chemical oxidants as defined above.

According to a first embodiment, the coloring process of the invention comprises the application to the keratin fibers of a cosmetic composition as defined previously, without the presence of a chemical oxidizing agent. According to this embodiment, the cosmetic composition preferably comprises one or more dyes chosen from direct dyes and mixtures thereof.

According to a second embodiment, the dyeing process of the invention comprises the application to said keratin fibers of a cosmetic composition as defined above and of one or more chemical oxidizing agents.

When the coloring process of the invention uses one or more chemical oxidizing agents, preferably, the chemical oxidizing agent(s) are present in an oxidizing composition different from the cosmetic composition of the invention. According to this embodiment, the cosmetic composition of the invention and the oxidizing composition are mixed beforehand before being applied to the keratin fibres. The mixture thus obtained is advantageously left in place on the keratin fibers for a period ranging from 1 minute to 1 hour, and more preferably for a period ranging from 5 to 45 minutes.

The dyeing process according to the present invention may optionally also comprise the application to the keratin fibers of an additional dye composition, comprising one or more dyes chosen from oxidation dyes, direct dyes and mixtures thereof as defined above. . In other words, this additional coloring composition is different from the cosmetic composition of the invention and from the possible oxidizing composition defined above. This additional coloring composition, when it comprises one or more oxidation dyes, is preferably derived from a mixture of a coloring composition comprising said oxidation dyes and an oxidizing composition comprising one or more chemical oxidizing agents such than previously defined.

According to this embodiment, the cosmetic composition of the invention and the additional coloring composition can be applied sequentially or together, that is to say they can be applied one after the other or mixed beforehand. before application. The cosmetic composition of the invention and the additional coloring composition are preferably mixed beforehand before application to the keratin fibres. The mixture thus obtained is advantageously left in place on the keratin fibers for a period ranging from 1 minute to 1 hour, and more preferably for a period ranging from 5 to 45 minutes.

When the coloring process of the invention also uses one or more chemical oxidizing agents, present or not in an oxidizing composition, different from the cosmetic composition of the invention, the chemical oxidizing agent(s) are previously mixed with the cosmetic composition of the invention. The mixture thus obtained can be applied before the additional coloring composition or mixed beforehand with this additional coloring composition before application to the keratin fibres.

Preferably, the cosmetic composition of the invention, the possible chemical oxidizing agent(s), present or not in an oxidizing composition, different from the cosmetic composition of the invention, and the additional coloring composition are mixed beforehand before be applied to the keratin fibres. The mixture thus obtained is advantageously left in place on the keratin fibers for a period ranging from 1 minute to 1 hour, and more preferably for a period ranging from 5 to 45 minutes.

According to this embodiment, the total content of the cosmetic composition, present in the mixture (that is to say cosmetic composition + additional coloring composition + optionally oxidizing composition), is preferably less than or equal to 10% by weight, relative to the total weight of the mixture.

The dyeing process according to the present invention may optionally also comprise the application to the keratin fibers of an additional care composition not comprising a dye. In other words, this additional care composition is different from the cosmetic composition of the invention and from the possible oxidizing composition defined above. This additional care composition may optionally comprise one or more fatty substances and/or one or more cationic surfactants and/or one or more cationic polymers.

According to this embodiment, the cosmetic composition of the invention and the additional care composition can be applied sequentially or together, that is to say they can be applied one after the other or previously mixed before application. The cosmetic composition of the invention and the additional care composition are preferably mixed beforehand before application to the keratin fibres. The mixture thus obtained is advantageously left in place on the keratin fibers for a period ranging from 1 minute to 1 hour, and more preferably for a period ranging from 5 to 45 minutes.

When the coloring process of the invention also uses one or more chemical oxidants, present or not in an oxidizing composition, different from the cosmetic composition of the invention, the chemical oxidizing agent(s) are mixed beforehand. with the cosmetic composition of the invention. The mixture thus obtained can be applied before the additional care composition or mixed beforehand with this additional care composition before application to the keratin fibres.

Preferably, the cosmetic composition of the invention, the possible chemical oxidizing agent(s), present or not in an oxidizing composition, different from the cosmetic composition of the invention, and the additional care composition are mixed beforehand before to be applied to the keratin fibres. The mixture thus obtained is advantageously left in place on the keratin fibers for a period ranging from 1 minute to 1 hour, and more preferably for a period ranging from 5 to 45 minutes.

The coloring process according to the invention can be carried out 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 cosmetic composition described above, of any chemical oxidizing agents, and of any additional composition (dye or care).

The application of the cosmetic composition of the invention, of the possible chemical oxidizing agents and of the possible additional composition (dyeing or care), to the keratin fibers can be implemented by any conventional means, in particular by means of comb, brush, brush or fingers.

The coloring process, i.e. application of the cosmetic composition, any chemical oxidizing agents on the keratin fibers and any additional composition (coloring or care), is generally carried out at room temperature (between 15 to 25°C ).

At the end of the coloring process according to the invention, the keratin fibers are advantageously rinsed with water. They can optionally be washed with shampoo, followed by rinsing with water, before being dried or left to dry.

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

The invention further relates to a device with multiple compartments comprising at least a first compartment containing the cosmetic composition according to the invention as described above, and optionally at least a second compartment containing one or more chemical oxidizing agents as described above, preferably hydrogen peroxide.

According to a particular embodiment, the device according to the present invention may optionally also comprise a third compartment containing an additional coloring composition, different from the cosmetic composition of the invention, comprising one or more dyes chosen from oxidation dyes, direct dyes and mixtures thereof as defined above.

According to another particular embodiment, the device according to the present invention may optionally also comprise a third compartment containing an additional care composition as defined above.

The following examples serve to illustrate the invention without, however, being of a limiting nature.

Examples
In the examples which follow, all the quantities are indicated in mass percentage of active ingredient (AM) relative to the total weight of the composition (unless otherwise stated).

To. Preparation of compositions
Coloring compositions
Compositions A (according to the invention) and B (comparative) were prepared from ingredients whose contents are indicated in the table below (% ai).

Composition A invention Comparative Composition B Ethanolamine 3.84 3.84 Hexylene glycol 3 3 Dipropylene glycol 3 3 Propane-1,3-diol 42 - Propylene glycol - 42 p-aminophenol 1,491 1,491 4-amino-2-hydroxytoluene 1.93 1.93 2-methylresorcinol 0.45 0.45 2-amino-6-chloro-4-nitrophenol 0.5 0.5 2-nitro-5-glyceryl methylaniline 1 1 2,3-diaminodihyropyrazolo pyrazolone dimethosulfonate 1.8 1.8 Ascorbic acid 0.25 0.25 EDTA 0.2 0.2 Sodium metabisulphite 0.71 0.71 Water Qsp 100 Qsp 100

Oxidizing composition
The oxidizing composition C was prepared from the ingredients whose contents are indicated in the table below (% ai).

Oxidizing composition C Trideceth-2-carboxamide MEA 0.85 Tetrasodium etidronate 0.06 Sodium salicylate 0.035 Glycerin 0.5 Cetearyl alcohol 2.28 Ceteareth-25 0.57 Phosphoric acid Qs pH 2.2 +/-0.2 Hydrogen peroxide 4.5 Tetrasodium pyrophosphate 0.04 Water Qsp 100

b. Staining protocol
At the time of use, each of the coloring compositions A and B is mixed with 1.5 times its weight of oxidizing composition C. Each of the mixtures is then applied to locks of 90% white permed hair (BP), at a rate of 10g of mixture per gram of hair.

After 20 minutes of exposure on a plate thermostated at 27° C., the hair is rinsed, washed with a standard shampoo, and dried.

The colorimetric measurements were carried out using a Konica Minolta CM-3600A spectrocolorimeter (illuminant D65, angle 10°, specular component included) in the CIE L*a*b* system. In this L*a*b* system, the parameters a* and b* designate the green/red color axis and the blue/yellow color axis respectively.

L* represents lightness: the lower the value of L*, the more powerful the coloration obtained.

vs.Results
The results obtained are given in the table below. I* A (invention) 34.22 B (comparative) 39.87

The above results show that the L* value measured after application of composition A is lower than that measured after application of comparative composition B. Consequently, the coloration obtained from composition A according to the invention, comprising propane-1,3-diol, is more powerful than that obtained with comparative composition B.

Claims (19)

Cosmetic composition comprising:
(i) propane-1,3-diol, in a total content greater than or equal to 20% by weight, relative to the total weight of the composition,
(ii) one or more alkaline agents,
(iii) one or more additional polyols other than propane-1,3-diol, and
(iv) one or more dyes chosen from oxidation dyes, direct dyes and mixtures thereof. Composition according to the preceding claim, characterized in that the total content of propane-1,3-diol ranges from 30 to 50% by weight, and preferably from 35 to 45% by weight, relative to the total weight of the composition. Composition according to any one of the preceding claims, characterized in that the alkaline agent(s) (ii) are chosen from alkanolamines, aqueous ammonia, carbonates or bicarbonates of alkali metals or alkaline earth metals, silicates or metasilicates of alkali metals or alkaline earth metals and mixtures thereof, preferably from ammonia, alkanolamines and mixtures thereof, more preferably from alkanolamines and mixtures thereof, and better still the alkaline agent is monoethanolamine. Composition according to any one of the preceding claims, characterized in that the total content of the alkaline agent(s) (ii) ranges from 0.01 to 10% by weight, preferably from 0.05 to 8% by weight, and more preferably from 0.1 to 5% by weight, relative to the total weight of the composition. Composition according to any one of the preceding claims, characterized in that the additional polyol(s) (iii) are chosen from the polyols of formula (I) below and mixtures thereof:

(I)
formula (I) in which:
- R′ ₁ , R′ ₂ , R′ ₃ and R′ ₄ , which are identical or different, independently denote a hydrogen atom, a linear or branched alkyl radical, C ₁ to C ₆ or a C ₁ to C ₆ mono or polyhydroxyalkyl radical,
- A denotes an oxygen atom or an alkylene radical, saturated or unsaturated, linear or branched containing from 1 to 18 carbon atoms, this radical comprises from 0 to 9 oxygen atoms, but no hydroxyl group, and
- m denotes 0 or 1;
it being understood that when R′ ₁ , R′ ₂ , R′ ₃ and R′ ₄ are identical and represent a hydrogen atom, then A does not represent a methylene group. Composition according to the preceding claim, characterized in that the additional polyol(s) (iii), other than propane-1,3-diol, are chosen from diols and mixtures thereof, preferably from the compounds of formula (I) in which , R′ ₁ , R′ ₂ , R′ ₃ and R′ ₄ , which are identical or different, independently denote a hydrogen atom or a C ₁ to C ₆ alkyl radical, and mixtures thereof, more preferably from propylene glycol, pinacol, 2,3-butanediol, polyethylene glycols, 1,5-pentanediol, 2-methyl-1,3-propanediol, 1,3-butanediol, 3-methyl- 1,5-pentanediol, neopentyl glycol, isoprene glycol, hexylene glycol, dipropylene glycol and mixtures thereof, better still from hexylene glycol, dipropylene glycol and mixtures thereof, and even more preferentially a mixture of hexylene glycol and dipropylene glycol. Composition according to any one of the preceding claims, characterized in that the total content of the additional polyol(s) (iii), other than propane-1,3-diol, ranges from 0.1 to 20% by weight, preferably from 0.5 to 15% by weight, and more preferably from 1 to 10% by weight, relative to the total weight of the composition. Composition according to any one of the preceding claims, characterized in that the oxidation dye(s) comprise one or more oxidation bases, preferably chosen from para-phenylenediamines, bis(phenyl)alkylenediamines, para-aminophenols , ortho-aminophenols, heterocyclic bases, their addition salts, their solvates, the solvates of their salts and their mixtures; more preferably from para-aminophenol, 2,3-diaminodihydropyrazolo pyrazolone, 2-methoxymethyl-para-phenylenediamine, 2-β-hydroxyethyl-para-phenylenediamine, 2-γ-hydroxypropyl-para-phenylenediamine, their salts of addition, their solvates, the solvates of their salts and their mixtures. Composition according to the preceding claim, characterized in that it also comprises one or more oxidation couplers, preferably chosen from meta-phenylenediamines, meta-aminophenols, meta-diphenols, naphthalene couplers, heterocyclic couplers and their addition salts, their solvates, the solvates of their salts and mixtures thereof, and more preferably from 6-hydroxy benzomorpholine, hydroxyethyl-3,4-methylenedioxyaniline, 4-amino-2-hydroxytoluene, 2-methylresorcinol , 2,4-diaminophenoxyethanol, meta-aminophenol, 2-amino 5-ethylphenol, their addition salts, their salts, the solvates of their salts and their mixtures. Composition according to any one of the preceding claims, characterized in that it additionally comprises one or more chemical oxidizing agents, preferably chosen from hydrogen peroxide, urea peroxide, alkali metal bromates, persalts , peracids and oxidase enzymes (with their possible cofactors), and mixtures thereof; more preferably, the chemical oxidizing agent(s) are chosen from hydrogen peroxide, persalts, and mixtures thereof, more preferably hydrogen peroxide. Process for dyeing keratin fibres, in particular human keratin fibers such as the hair, comprising the application to the said keratin fibers of a cosmetic composition according to any one of Claims 1 to 10. Process according to Claim 11, characterized in that it further comprises the application to the keratin fibers of an additional coloring composition, different from the cosmetic composition, comprising one or more dyes chosen from oxidation dyes, direct and mixtures thereof, as defined in claims 8 and 9. Process according to Claim 11, characterized in that it further comprises the application to the keratin fibers of a care composition, different from the cosmetic composition, preferably comprising one or more fatty substances and/or one or more surfactants cationic polymers and/or one or more cationic polymers. Process according to Claim 12 or 13, characterized in that the cosmetic composition and the additional coloring composition or the care composition are applied sequentially to the keratin fibres. Process according to Claim 12 or 13, characterized in that the cosmetic composition and the additional coloring composition or the care composition are mixed beforehand before being applied to the keratin fibres. Use of a cosmetic composition as defined according to any one of Claims 1 to 10 for coloring keratin fibres, in particular human keratin fibers such as the hair. Device with multiple compartments comprising at least a first compartment containing a cosmetic composition according to any one of Claims 1 to 9, and optionally at least a second compartment containing one or more chemical oxidizing agents according to Claim 10. Device according to the preceding claim, characterized in that it comprises a third compartment containing an additional coloring composition, different from the cosmetic composition, comprising one or more dyes chosen from oxidation dyes, direct dyes and mixtures thereof, such as defined according to claims 8 and 9. Device according to Claim 17, characterized in that it also comprises a third compartment containing a care composition different from the cosmetic composition, preferably comprising one or more fatty substances and/or one or more cationic surfactants and/or one or more several cationic polymers.