Composition for simultaneously decolorizing and dyeing keratin fibers and method of using this composition

Abstract

The present invention relates to a composition for simultaneously bleaching and dyeing keratinous fibers, the composition comprising at least one chemical oxidizing agent, at least one (bi)carbonate, at least one silicate, and at least one oxidation dye, as well as a method for simultaneously bleaching and dyeing keratinous fibers using this composition.

Description

Technical Field

[0001] The present invention relates to a composition for simultaneously decolorizing and dyeing keratin fibers, comprising at least one chemical oxidizing agent, at least one (bi) carbonate, at least one silicate and at least one oxidation dye, and also to a method for simultaneously decolorizing and dyeing keratin fibers using this composition.

Background Art

[0002] When it is desired to fundamentally change the color of the hair, especially when it is desired to obtain a lighter color than the original color, it is often necessary to decolorize and then dye the hair. There are several methods for doing this.

[0003]

[0004] The first method involves using a lightening product based on aqueous ammonia and hydrogen peroxide. This product may optionally contain a dye, thereby enabling simultaneous lightening and dyeing of the hair. However, especially in the case of natural colors and / or darkly dyed hair, even when this product is applied, the resulting lightening effect remains limited.

Summary of the Invention

Problems to be Solved by the Invention

[0005] ​Accordingly, there is a real need to develop a composition for simultaneously decolorizing and dyeing keratin fibers, which contains oxidation dyes and exhibits both good brightening properties and good dyeing properties, especially when applied to dark-colored hair, and which makes it possible to obtain a wider range of colors, especially including pastel colors and vivid colors. Furthermore, such a composition may contain a wide range of oxidation dyes so as to cover all the shades desired by the user. Finally, such a composition can be used in a method for simultaneously decolorizing and dyeing keratin fibers in one step. Such a composition should also be more respectful of the quality of the fibers.

Means for Solving the Problems

[0006] Surprisingly, the Applicant has found that by using the composition according to the invention, all these objectives can be achieved.

[0007] According to a first aspect, the subject of the invention is a composition comprising i) one or more chemical oxidizing agents selected from hydrogen peroxide, hydrogen peroxide generating systems other than peroxide salts, and mixtures thereof; ii) one or more compounds selected from carbonates, carbonate generating systems, bicarbonates, bicarbonate generating systems, and mixtures thereof; iii) one or more silicates; iv) one or more oxidation dyes and the silicate is present in a total content in the range of 3% to 35% by mass relative to the total mass of the composition.

[0008] According to a second aspect, the subject of the invention is a method for simultaneously decolorizing and dyeing keratin fibers, which method comprises applying the composition as defined above to the keratin fibers.

[0009] According to a third aspect, the subject of the invention is the use of the composition as defined above for simultaneously decolorizing and dyeing keratin fibers.

[0010] According to a fourth aspect, the subject of the invention is a multi-compartment device (kit) comprising: · a first compartment containing a composition (A) comprising one or more chemical oxidizing agents selected from hydrogen peroxide, hydrogen peroxide generating systems other than hydrogen peroxide salts, and mixtures thereof; · a composition (B1) comprising: ii) one or more compounds selected from carbonates, carbonate generating systems, bicarbonates, bicarbonate generating systems, and mixtures thereof; and iii) one or more silicates; and iv) one or more oxidative dyes and a second compartment containing the composition (B1); or comprising: · a first compartment containing a composition (A) comprising one or more chemical oxidizing agents selected from hydrogen peroxide, hydrogen peroxide generating systems other than hydrogen peroxide salts, and mixtures thereof; · a second compartment containing a composition (B2) comprising: ii) one or more compounds selected from carbonates, carbonate generating systems, bicarbonates, bicarbonate generating systems, and mixtures thereof; and iii) one or more silicates and a third compartment containing a composition (C) comprising: · iv) one or more oxidative dyes and is a multi-compartment device (kit).

Embodiments for Carrying Out the Invention

[0011] For the purposes of the present invention, unless otherwise specified, it is as follows: · The term "keratin fiber" means fibers derived from humans or animals such as hair, body hair, eyelashes, eyebrows, wool, angora goat hair, cashmere or fur. According to the present invention, the keratin fiber is preferably a human keratin fiber, more preferably hair, and even more preferably scalp hair; · The term "alkyl group" means a straight-chain or branched saturated hydrocarbon-based group; · "(Cx ~C y ) The term "alkyl group" means an alkyl group containing x to y carbon atoms; · The term "silicate" means silicate; · The term "oxidation dye" means an oxidation dye precursor selected from oxidizing bases and couplers. Oxidizing bases and couplers are colorless or light-colored compounds that give a colored entity through a condensation reaction in the presence of an oxidizing agent; · The term "direct dye" means natural and / or synthetic dyes other than oxidation dyes, including in the form of extracts. These are colored compounds that will spread on the surface of the fiber. These can be ionic or non-ionic, i.e., anionic, cationic, neutral or non-ionic; · The term "chemical oxidizing agent" means an oxidizing agent other than atmospheric oxygen; · The term "(bi)carbonate" means carbonate or bicarbonate.

[0012] Unless otherwise specified, when referring to a compound in this application, this includes its optical isomers, its geometric isomers, its tautomers, its salts or its solvates, such as hydrates and mixtures thereof.

[0013] The terms "at least one" and "one or more" are synonymous and can be used interchangeably.

[0014] The terms "brightening" and "decolorization" are synonymous and can be used interchangeably.

[0015] Composition According to a first aspect, the subject matter of the present invention is the composition as defined above.

[0016] The applicant has surprisingly found that the composition according to the present invention stabilizes the oxidation dye and enables a satisfactory level of brightening, and in particular, color accumulation to achieve pastels or bright colors.

[0017] Furthermore, the composition according to the present invention respects the quality of the fibers more and particularly minimizes their degradation.

[0018] According to a preferred embodiment, the composition according to the present invention i) hydrogen peroxide; ii) one or more compounds selected from carbonates, bicarbonates and mixtures thereof; iii) one or more silicates; iv) one or more oxidative dyes and the silicate is present in a total content in the range of 3% to 35% by mass based on the total mass of the composition.

[0019] Chemical oxidizing agent The composition according to the present invention contains one or more chemical oxidizing agents selected from i) hydrogen peroxide, hydrogen peroxide generating systems other than peroxides and mixtures thereof.

[0020] The hydrogen peroxide generating system other than peroxides can be selected from urea peroxide, polymer complexes capable of releasing hydrogen peroxide, oxidases and mixtures thereof.

[0021] Examples of polymer complexes capable of releasing hydrogen peroxide include, in particular, polyvinylpyrrolidone / H in powder form 2 O 2 as well as other polymer complexes described in US Patent No. 5008093, US Patent No. 3376110 and US Patent No. 5183901.

[0022] The oxidase can generate hydrogen peroxide in the presence of a suitable substance, for example glucose in the case of glucose oxidase or uric acid in the case of uricase.

[0023] According to certain embodiments, a hydrogen peroxide generating system other than hydrogen peroxide and / or a peroxide salt can be added immediately before applying the composition according to the invention to the keratin fibers. An intermediate composition containing a hydrogen peroxide generating system other than hydrogen peroxide and / or a peroxide salt can be referred to as an oxidizing composition and can also contain various additional compounds or various adjuvants conventionally used in compositions for the dyeing of keratin fibers.

[0024] According to a preferred embodiment, the composition according to the invention contains the chemical oxidizing agent hydrogen peroxide.

[0025] The chemical oxidizing agent is preferably present in a total content in the range of 1% to 12% by weight, more preferably in the range of 3% to 9% by weight, even more preferably in the range of 3.5% to 8.5% by weight, based on the total weight of the composition.

[0026] According to a preferred embodiment, hydrogen peroxide is present in a total content in the range of 1% to 12% by weight, preferably in the range of 3% to 9% by weight, more preferably in the range of 3.5% to 8.5% by weight, based on the total weight of the composition.

[0027] (b) Carbonate and / or (b) carbonate generating system The composition according to the invention additionally contains one or more compounds selected from ii) carbonates, carbonate generating systems, bicarbonates, bicarbonate generating systems and mixtures thereof.

[0028] According to a preferred embodiment, the composition according to the invention also contains one or more compounds selected from ii) carbonates, bicarbonates and mixtures thereof.

[0029] According to a more preferred embodiment, the composition according to the invention also contains one or more compounds selected from ii) ammonium carbonate, ammonium bicarbonate and mixtures thereof.

[0030] Compound (ii) is preferably present in a total content in the range of 0.01% to 20% by mass, more preferably in the range of 1% to 15% by mass, still more preferably in the range of 2% to 15% by mass, and most preferably in the range of 4% to 15% by mass, based on the total mass of the composition.

[0031] Carbonate and / or carbonate generating system The term "carbonate generating system" means a system that generates carbonate in situ, for example, carbon dioxide in water or percarbonate in water.

[0032] Preferably, the carbonate is - Alkali metal carbonate; - Alkaline earth metal carbonate; - Lanthanide carbonate; - Transition metal carbonate; - Bismuth carbonate; - Cadmium carbonate; - Potassium carbonate; - Zinc carbonate; - A compound of the formula (N + R 1 R 2 R 3 R 4 ) 2 CO 3 2- (wherein R 1 , R 2 , R 3 and R 4 each independently represent a hydrogen atom or a (C 1 to C 4 ) alkyl group optionally substituted with a hydroxyl group); - Guanidine carbonate; - A mixture thereof selected from.

[0033] More preferably, the carbonate is selected from sodium carbonate, potassium carbonate, cesium carbonate, lithium carbonate, magnesium carbonate, calcium carbonate, barium carbonate, strontium carbonate, cerium carbonate, lanthanum carbonate, yttrium carbonate, copper(II) carbonate, manganese carbonate, nickel carbonate, silver carbonate, zirconium carbonate, bismuth carbonate, cadmium carbonate, thallium carbonate, zinc carbonate, ammonium carbonate, guanidine carbonate, tetraethylammonium carbonate, and mixtures thereof.

[0034] Even more preferably, the carbonate is selected from sodium carbonate, potassium carbonate, cesium carbonate, magnesium carbonate, calcium carbonate, cerium carbonate, manganese carbonate, zinc carbonate, ammonium carbonate, guanidine carbonate, and mixtures thereof.

[0035] Most preferably, the carbonate is selected from sodium carbonate, potassium carbonate, magnesium carbonate, calcium carbonate, ammonium carbonate, and mixtures thereof.

[0036] According to a particularly preferred embodiment, the carbonate contained in the composition is ammonium carbonate.

[0037] The carbonate and / or carbonate generating system is preferably present in a total content in the range of 0.01% to 20% by mass, more preferably in the range of 1% to 15% by mass, even more preferably in the range of 2% to 15% by mass, and most preferably in the range of 4% to 15% by mass, based on the total mass of the composition.

[0038] According to a preferred embodiment, the carbonate is present in a total content in the range of 0.01% to 20% by mass, preferably in the range of 1% to 15% by mass, more preferably in the range of 2% to 15% by mass, and even more preferably in the range of 4% to 15% by mass, based on the total mass of the composition.

[0039] According to a preferred embodiment, compound ii) is selected from carbonates, carbonate generating systems, and mixtures thereof, preferably carbonates.

[0040] Bicarbonate and / or bicarbonate generating system The term "bicarbonate generating system" means a system that generates bicarbonate in situ, for example, by buffering carbonate with carbon dioxide or an inorganic or organic acid in water.

[0041] Preferably, the bicarbonate is - an alkali metal bicarbonate; - an alkaline earth metal bicarbonate; - a compound of the formula N + R 1 R 2 R 3 R 4 HCO 3 - (wherein R 1 , R 2 , R 3 and R 4 are each independently a (C 1 ~C 4 ) alkyl group optionally substituted with a hydrogen atom or a hydroxyl group); - aminoguanidine bicarbonate; - a mixture thereof selected from.

[0042] More preferably, the bicarbonate is selected from sodium bicarbonate, potassium bicarbonate, lithium bicarbonate, cesium bicarbonate, calcium bicarbonate, magnesium bicarbonate, ammonium bicarbonate, choline bicarbonate, triethylammonium bicarbonate, aminoguanidine bicarbonate and mixtures thereof.

[0043] Even more preferably, the bicarbonate is selected from sodium bicarbonate, potassium bicarbonate, cesium bicarbonate, calcium bicarbonate, magnesium bicarbonate, ammonium bicarbonate and mixtures thereof.

[0044] Most preferably, the bicarbonate is selected from sodium bicarbonate, potassium bicarbonate, ammonium bicarbonate and mixtures thereof.

[0045] According to a particularly preferred embodiment, the bicarbonate comprised in the composition is ammonium bicarbonate.

[0046] The bicarbonate can be obtained from natural waters, such as spring waters from the Vichy basin or La Roche Posay or the water of Badoit.

[0047] The bicarbonate and / or the bicarbonate generating system is preferably present in a total content in the range of 0.01% to 20% by weight, more preferably in the range of 1% to 15% by weight, even more preferably in the range of 2% to 15% by weight, most preferably in the range of 4% to 15% by weight, based on the total weight of the composition.

[0048] According to a preferred embodiment, the bicarbonate is present in a total content in the range of 0.01% to 20% by weight, preferably in the range of 1% to 15% by weight, more preferably in the range of 2% to 15% by weight, even more preferably in the range of 4% to 15% by weight, based on the total weight of the composition.

[0049] According to a preferred embodiment, compound ii) is selected from bicarbonates, bicarbonate generating systems and mixtures thereof, preferably bicarbonates.

[0050] Silicate The composition according to the invention also comprises iii) one or more silicates.

[0051] The silicate is preferably water-soluble.

[0052] The term "water-soluble silicate" means a silicate having a solubility in water higher than 0.5% by weight, preferably higher than 1% by weight, at normal room temperature (25 °C) and atmospheric pressure (760 mmHg).

[0053] Preferably, the silicate is selected from alkali metal silicates, alkaline earth metal silicates, aluminum silicate, trimethylammonium silicate, and mixtures thereof.

[0054] More preferably, the silicate is selected from sodium silicate, potassium silicate, calcium silicate, aluminum silicate, trimethylammonium silicate, and mixtures thereof.

[0055] Even more preferably, the silicate is selected from sodium silicate. Examples of sodium silicate that may be mentioned include compounds having CAS numbers: [1344 - 09 - 8] and [6834 - 92 - 0].

[0056] The silicate) is present in a total content in the range of 3% to 35% by mass, preferably in the range of 4% to 20% by mass, based on the total mass of the composition.

[0057] The mass ratio of the total amount of (b) carbonate and / or (b) carbonate - generating system ii) / the total amount of silicate iii) is preferably 0.00025 to 2000, more preferably 0.06 to 15, and even more preferably 1 to 7.5.

[0058] According to a preferred embodiment, the mass ratio of the total amount of (b) carbonate ii) / the total amount of silicate iii) is 0.00025 to 2000, preferably 0.06 to 15, and more preferably 1 to 7.5.

[0059] The mass ratio of the total amount of (b) carbonate and / or (b) carbonate - generating system ii) / the total amount of chemical oxidant i) is preferably 0.0008 to 20, more preferably 0.1 to 5, and even more preferably 0.2 to 4.3.

[0060] According to a preferred embodiment, the mass ratio of the total amount of (b) carbonate ii) / the total amount of chemical oxidant i) is 0.0008 to 20, preferably 0.1 to 5, and more preferably 0.2 to 4.3.

[0061] According to a more preferred embodiment, the mass ratio of the total amount of (b) carbonate ii) / the total amount of hydrogen peroxide is 0.0008 to 20, preferably 0.1 to 5, and more preferably 0.2 to 4.3.

[0062] The mass ratio of the total amount of carbonate and / or carbonate generating system / the total amount of bicarbonate and / or bicarbonate generating system is preferably 0.01 to 100, more preferably 0.01 to 1, and even more preferably 0.01 to 0.75.

[0063] According to a preferred embodiment, the mass ratio of the total amount of carbonate / the total amount of bicarbonate is 0.01 to 100, preferably 0.01 to 1, and more preferably 0.01 to 0.75.

[0064] The composition preferably contains magnesium carbonate with a total content of less than 5% by mass, more preferably less than 1% by mass, even more preferably less than 0.1% by mass, most preferably less than 0.01% by mass, and even better less than 0.001% by mass.

[0065] According to a particularly preferred embodiment, the composition does not contain magnesium carbonate.

[0066] The composition preferably contains persulfate with a total content of less than 10% by mass, more preferably less than 5% by mass, even more preferably less than 1% by mass, most preferably less than 0.1% by mass, preferably less than 0.01% by mass, and even better less than 0.001% by mass.

[0067] According to a particularly preferred embodiment, the composition does not contain persulfate.

[0068] The composition according to the present invention also contains iv) one or more oxidation dyes.

[0069] Oxidation dye Acid dyes are generally selected from one or more oxidizing bases, optionally combined with one or more coupling agents (also known as couplers).

[0070] Oxidizing base The composition may optionally and preferably contain one or more oxidizing bases selected from those conventionally used for the dyeing of keratin fibers.

[0071] By way of example, the oxidizing bases are selected from para-phenylenediamine, bis(phenyl)alkylenediamine, para-aminophenol, ortho-aminophenol and heterocyclic bases and the corresponding addition salts.

[0072] Among para-phenylenediamines, for example, para-phenylenediamine, para-toluidine, 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, 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-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-acetamidoethyloxy-para-phenylenediamine, N-(β-methoxyethyl)-para-phenylenediamine, 4-aminophenylpyrrolidine, 2-thienyl-para-phenylenediamine, 2-β-hydroxyethylamino-5-aminotoluene and 3-hydroxy-1-(4'-aminophenyl)pyrrolidine and the corresponding addition salts with acids can be mentioned.

[0073] Among the above-mentioned para-phenylenediamines, para-phenylenediamine, para-tolylenediamine, 2-isopropyl-para-phenylenediamine, 2-β-hydroxyethyl-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 their corresponding addition salts with acids are particularly preferred.

[0074] Among bis(phenyl)alkylenediamines, for example, 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 and their corresponding addition salts can be mentioned.

[0075] Among para-aminophenols, 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 their corresponding addition salts with acids can be mentioned.

[0076] Among ortho-aminophenols, for example, 2-aminophenol, 2-amino-5-methylphenol, 2-amino-6-methylphenol, 5-acetamido-2-aminophenol and corresponding addition salts can be mentioned.

[0077] Among the heterocyclic bases that can be mentioned, for example, pyridine, pyrimidine and pyrazole derivatives can be mentioned.

[0078] Among pyridine derivatives, for example, the compounds described in British Patent Application Publication No. 1026978 and British Patent Application Publication No. 1153196, such as 2,5-diaminopyridine, 2-(4-methoxyphenyl)amino-3-aminopyridine and 3,4-diaminopyridine and corresponding addition salts can be mentioned.

[0079] Other pyridine oxidizing bases useful in the present invention are, for example, the oxidizing base 3-aminopyrazolo[1,5-a]pyridine or the corresponding addition salt described in the French Patent Application No. 2801308. Examples that can be listed include pyrazolo[1,5-a]pyrid-3-ylamine, 2-acetylaminopyrazolo[1,5-a]pyrid-3-ylamine, 2-(morpholin-4-yl)pyrazolo[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-yl)pyrazolo[1,5-a]pyrid-3-ylamine, pyrazolo[1,5-a]pyridine-3,5-diamine, 5-(morpholin-4-yl)pyrazolo[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]pyridine-5-ol, 3-aminopyrazolo[1,5-a]pyridine-4-ol, 3-aminopyrazolo[1,5-a]pyridine-6-ol, 3-aminopyrazolo[1,5-a]pyridine-7-ol, 2-β-hydroxyethoxy-3-aminopyrazolo[1,5-a]pyridine and 2-(4-dimethylpiperazinium-1-yl)-3-aminopyrazolo[1,5-a]pyridine and the corresponding addition salts are included.

[0080] More specifically, the oxidizing base useful in the present invention is selected from 3-aminopyrazolo[1,5-a]pyridine and is preferably substituted on carbon atom 2 as follows: a) may be substituted with at least one hydroxyl group, amino group or imidazolium group, a (di)(C 1 ~C 6 )(alkyl)amino group; b) an optional cationic 5- to 7-membered heterocycloalkyl group containing 1 to 3 heteroatoms, optionally substituted with one or more (C 1 ~C 6 )alkyl groups, for example, a di(C 1 ~C 4 )alkylpiperazinium group; or c) a (C 1 ~C 6 )alkoxy group optionally substituted with one or more hydroxyl groups (for example, a β-hydroxyalkoxy group) and corresponding addition salts.

[0081] Among the pyrimidine derivatives, for example, the compounds described in German Patent No. 2359399; Japanese Patent Publication No. 88-169571; Japanese Unexamined Patent Publication No. 05-63124; European Patent No. 0770375 or International Patent Application Publication Pamphlet No. 96 / 15765, such as 2,4,5,6-tetraaminopyrimidine, 4-hydroxy-2,5,6-triaminopyrimidine, 2-hydroxy-4,5,6-triaminopyrimidine, 2,4-dihydroxy-5,6-diaminopyrimidine, 2,5,6-triaminopyrimidine and their addition salts, and when there is a tautomeric equilibrium, their tautomers can be mentioned.

[0082] Among pyrazole derivatives, compounds described in German Patent No. 3843892, German Patent No. 4133957, International Patent Application Publication No. 94 / 08969 Pamphlet, International Publication No. 94 / 08970 Pamphlet, French Patent Application Publication No. A-2733749, German Patent No. 19543988, 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, 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 and 3,5-diamino-4-(β-hydroxyethyl)amino-1-methylpyrazole and corresponding addition salts can be mentioned. 4,5-diamino-1-(β-methoxyethyl)pyrazole can also be used.

[0083] Preferably, 4,5-diaminopyrazole is used, and even more preferably 4,5-diamino-1-(β-hydroxyethyl)pyrazole and / or the corresponding salt will be used.

[0084] Among the pyrazole derivatives that can be mentioned are diaminopyrazolopyrazolones, in particular those described in French Patent Application Publication No. A-2886136, for example the following compounds and 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-bis(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 and 2,3-diamino-6-hydroxy-6,7-dihydro-1H,5H-pyrazolo[1,2-a]pyrazol-1-one.

[0085] Preferably, 2,3-diamino-6,7-dihydro-1H,5H-pyrazolo[1,2-a]pyrazol-1-one and / or the corresponding salt will be used.

[0086] Heterocyclic bases that would preferably be used are 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 the corresponding salts.

[0087] Coupling agent The dye composition may optionally and preferably contain one or more coupling agents that can be selected from those conventionally used for dyeing keratin fibers.

[0088] Among these coupling agents, mention may be made, in particular, of meta-phenylenediamine, meta-aminophenol, meta-diphenol, naphthalene-based coupling agents and heterocyclic coupling agents, in addition to the corresponding addition salts.

[0089] For example, 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, 1-β-hydroxyethylamino-3,4-methylenedioxybenzene, α-naphthol, 2-methyl-1-naphthol, 6-hydroxyindole, 4-hydroxyindole, 4-hydroxy-N-methylindole, 2-amino-3-hydroxypyridine, 6-hydroxybenzomorpholine, 3,5-diamino-2,6-dimethoxypyridine, 1-N-(β-hydroxyethyl)amino-3,4-methylenedioxybenzene, 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 and 3-amino-2-chloro-6-methylphenol, corresponding addition salts with acids and corresponding mixtures can be mentioned.

[0090] Generally, the addition salts of oxidizing bases and coupling agents that can be used in connection with the present invention are particularly selected from addition salts with acids, such as hydrochloride, hydrobromide, sulfate, citrate, succinate, tartrate, lactate, tosylate, benzenesulfonate, phosphate and acetate.

[0091] The acid dye may be present in the composition in a total content in the range of 0.001% by mass to 5% by mass, preferably 0.01% by mass to 3% by mass, more preferably 0.1% by mass to 1% by mass, and even more preferably 0.1% by mass to 0.5% by mass, based on the total mass of the composition.

[0092] Direct dye The composition according to the present invention may also contain one or more direct dyes.

[0093] The direct dye may be selected from neutral, cationic and anionic direct dyes and mixtures thereof.

[0094] Direct dyes can be neutral, cationic or anionic direct dyes selected from acridine; acridone; anthranthrone; anthrapyrimidine; anthraquinone; azine; (poly)azo or azo, hydrazono or hydrazone, especially arylhydrazone; azomethine; benzanthrone; benzimidazole; benzimidazolone; benzindole; benzoxazole; benzopyran; benzothiazole; benzoquinone; bis - isoindoline; carboxyanilide; coumarin; cyanines such as (di)azacarbocyanine, (di)azahemicyanine, hemicyanine or tetraazacarbocyanine; (di)azine; bis - azine; (di)oxazine; (di)thiazine; (di)phenylamine; (di)phenylmethane; (di)ketopyrrolopyrrole; flavonoids such as flavanthrone and flavone; fluorine orange; formazan; indamine; indanthrone; indigoid, thioindigoid and pseudoindigoid; indophenol; indoaniline; isoindoline; isoindolinone; isoviolanthrone; lactone; (poly)methine such as stilbene or stilryl - type dimethine; naphthalimide; naphthanilide; naphtharactam; naphthoquinone; nitro, especially nitro (hetero)aromatic; oxadiazole; oxazine; perylene; perinone; perylene; phenazine; phenoxazine; phenothiazine; phthalocyanine; polyene / carotenoid; porphyrin; pyranthrone; pyrazoloanthrone; pyrazolone; pyrimidoanthrone; pyronin; quinacridone; quinoline; quinophthalone; squalane; tetrazoline; thiazine; thiopyronin; triarylmethane; or xanthene; and natural direct dyes. Preferably, the direct dye is selected from anthraquinone, (poly)azo, azomethine and stilbene, more preferably from anthraquinone.

[0095] Direct dyes can be selected, in particular, from neutral, cationic or anionic nitrobenzene direct dyes, neutral, cationic or anionic azo direct dyes, neutral, cationic or anionic tetraazapentamethine dyes, cationic or anionic quinone dyes, in particular neutral, cationic or anionic anthraquinone dyes, neutral, cationic or anionic azine direct dyes, neutral, cationic or anionic triarylmethane direct dyes, neutral, cationic or anionic azomethine direct dyes and natural direct dyes. Preferably, the direct dye is selected from neutral or anionic anthraquinone dyes and stilbene.

[0096] As neutral, anionic or cationic direct dyes that can be used in the present invention, the following dyes: acridine; acridone; anthraquinone; anthrapyrimidine; anthraquinone; azine; (poly)azo; hydrazono or hydrazone, especially arylhydrazone; azomethine; benzanthrone; benzimidazole; benzimidazolone; benzindole; benzoxazole; benzopyran; benzothiazole; benzoquinone; bisazine; bis - isoindoline; carboxyanilide; coumarin; cyanine such as azacarbocyanine, diazacarbocyanine, diazahemicyanine, hemicyanine or tetraazacarbocyanine; diazine; diketopyrrolopyrrole; dioxazine; diphenylamine; diphenylmethane; dithiaazine; flavonoid such as flavanthrone and flavone; fluorindine; formazan; indamine; indanthrone; indigoid and pseudoindigoid; indophenol; indoaniline; isoindoline; isoindolinone; isoviolanthrone; lactone; (poly)methine such as stilbene or styryl - type dimethine; naphthalimide; naphthanilide; naphtharactam; naphthoquinone; nitro, especially nitro(hetero)aromatic; oxadiazole; oxazine, perylene; perinone; perylene; phenazine; phenoxazine; phenothiazine; phthalocyanine; polyene / carotenoid; porphyrin; pyranthrone; pyrazoloanthrone; pyrazolone; pyrimidoanthrone; pyronin; quinacridone; quinoline; quinophthalone; squalane; tetrazole; thiazine; thioindigo; thiopyronin; triarylmethane; or xanthene can be mentioned.

[0097] Neutral direct dye The direct dye can preferably be a neutral direct dye selected from the following hydrazono dyes of formulas (IIIa) and (III’a), azo and styryl dyes (IVa), diazo and distyryl dyes (IV’a) and (IV’’a), anthraquinone dyes (Va) and azomethine dyes (VIa) and (VI’a), and mixtures thereof.

Chemical formula

[0098] The direct dye of formula (IV’’a) is preferably of formula (IV’’’a)

Chemical formula

[0099] The direct dyes of formula (IV''a) can be derived from curcumin, demethoxycurcumin, and bis-demethoxycurcumin.

[0100] Preferably, the direct dye is selected from the direct dyes of formula (IV''a) and (IV'''a) as defined above and mixtures thereof.

[0101] According to a particularly preferred embodiment, the direct dye is the following compounds (A) to (G) and mixtures thereof:

Chemical formula

[0102] Cationic direct dye The direct dye can be selected from direct dyes that are cationic or have an affinity for acidic substances and are generally referred to as "basic dyes", especially those containing at least one cationic group or cationizable group within or outside the ring in their structure.

[0103] Examples of cationic azo dyes that can be used in the present invention include the cationic dyes described in Kirk-Othmer’s encyclopedia of Chemical Technology, “Dyes, Azo”, J. Wiley & Sons, revised on April 19, 2010.

[0104] Also included are the cationic azo dyes described in Patent Application International Publication No. 95 / 15144 Pamphlet, International Publication No. 95 / 01772 Pamphlet, and European Patent No. 714954 Specification.

[0105] Cationic azo dyes described in the Colour Index International 3rd Edition, in particular the following compounds: Basic Red 22; Basic Red 76; Basic Yellow 57; Basic Brown 16; Basic Brown 17 can also be mentioned.

[0106] Among the cationic quinone dyes, those described in the Colour Index International 3rd Edition are suitable, and among these, in particular, the following dyes: Basic Blue 22; Basic Blue 99 can be mentioned.

[0107] Among the azine dyes suitable for use, those listed in the Colour Index International 3rd Edition, for example the following dyes: Basic Blue 17, Basic Red 2 can be mentioned.

[0108] Among the cationic triarylmethane dyes that can be used according to the present invention, in addition to those listed in the Colour Index International 3rd Edition, the following dyes: Basic Green 1, Basic Violet 3, Basic Violet 14, Basic Blue 7, Basic Blue 26 can be mentioned.

[0109] Direct dyes described in US Patent No. 5888252, European Patent No. 1133975, International Publication No. 03 / 029359 Pamphlet, European Patent No. 860636, International Publication No. 95 / 01772 Pamphlet, International Publication No. 95 / 15144 Pamphlet and European Patent No. 714954 can also be mentioned.

[0110] Those listed in various chapters of the encyclopedias “The Chemistry of Synthetic Dyes” 1952, Academic Press, Volumes 1 - 7 by K. Venkataraman, “Kirk - Othmer Encyclopaedia of Chemical Technology”, chapter “Dyes and Dye Intermediates”, 1993, Wiley and Sons and “Ullmann’s Encyclopaedia of Industrial Chemistry”, 7th edition, Wiley and Sons can also be mentioned.

[0111] Preferably, the cationic direct dyes are selected from those obtained from azo and hydrazono type dyes.

[0112] Cationic direct dyes are described in European Patent No. 850636, French Patent No. 2788433, European Patent No. 920856, International Publication No. 99 / 48465 Pamphlet, French Patent No. 2757385, European Patent No. 850637, European Patent 918053, International Publication No. 97 / 44004 Pamphlet, French Patent No. 2570946, French Patent No. 2285851, German Patent Application Publication No. 2538363, French Patent No. 2189006, French Patent Application Publication No. 1560664, French Patent Application Publication No. 1540423, French Patent Application Publication No. 1567219, French Patent Application Publication No. 1516943, French Patent Application Publication No. 1221122, German Patent Application Publication No. 4220388, German Patent Application Publication No. 4137005, International Publication No. 01 / 66646 Pamphlet, US Patent No. 5708151, International Publication No. 95 / 01772 Pamphlet, International Publication No. 515144 Pamphlet, UK Patent Application Publication No. 1195386, US Patent No. 3524842, US Patent No. 5879413, European Patent No. 1062940, European Patent No. 1133976, UK Patent No. 738585, German Patent Application Publication No. 2527638, French Patent No. 2275462, UK Patent Application Publication No. 1974 - 27645, Acta Histochem. (1978), 61(1), 48 - 52; Tsitologiya (1968), 10(3), 403 - 5; Zh.Obshch.Khim. (1970), 40(1), 195 - 202; Ann.Chim. (Rome) (1975), 65(5 - 6), 305 - 14; Journal of the Chinese Chemical Society (Taipei) (1998), 45(1), 209 - 211; Rev.Roum.Chim. (1988), 33(4), 377 - 83; Text.Res.J. (1984), 54(2), 105 - 7; Chim.Ind. (Milan) (1974), 56(9), 600 - 3; Khim.Tekhnol. (1979), 22(5), 548 - 53; Ger.Monatsh.Chem. (1975), 106(3), 643 - 8; MRL Bull.Res.It may also be a cationic azo dye described in Dev. (1992), 6(2), 21-7; Lihua Jianyan, Huaxue Fence (1993), 29(4), 233-4; Dyes Pigm. (1992), 19(1), 69-79; Dyes Pigm. (1989), 11(3), 163-72.

[0113] Preferably, the cationic direct dye contains a quaternary ammonium group; more preferably, the cationic charge is within the ring. This cationic group is, for example, - having an (di / tri)(C 1 ~C 8 ) alkylammonium charge outside the ring; or - a cationic group having an internal charge within the ring, such as an acridinium, benzimidazolium, benzobistriazolium, benzopyrazolium, benzopyridazinium, benzoquinolium, benzothiazolium, benzotriazolium, benzoxazolium, bipyridinium, bis-tetrazolium, dihydrothiazolium, imidazopyridinium, imidazolium, indolium, isoquinolium, naphthimidazolium, naphthoxoxazolium, naphthopyrazolium, oxadiazolium, oxazolium, oxazolopyridinium, oxonium, phenazinium, phenoxazolium, pyrazinium, pyrazolium, pyrazoyl triazolium, pyridinium, pyridinoimidazolium, pyrrolium, pyrylium, quinolium, tetrazolium, thiadiazolium, thiazolium, thiazolopyridinium, thiazoyl imidazolium, thiopyrylium, triazolium or xanthylium, etc., which contains a cationic heteroaryl group having an internal charge within the ring.

[0114] Also included are the cationic hydrazono direct dyes of the following formulas (IIb) and (IIIb) and the azo direct dyes of formulas (IVb) and (Vb). Het + -C(R a )=N-N(R b )-Ar,Q - (IIb); Het+ -N(R a )-N=C(R b )-Ar, Q - (IIIb); Het + -N=N-Ar, Q-(IVb); Ar + -N=N-Ar'‘, Q - (Vb); In formulas (IIb) to (Vb), ·Het + preferably represents a cationic heteroaryl group such as imidazolium, indolium or pyridinium, which is optionally substituted with at least one (C 1 ~C 8 ) alkyl group, preferably methyl, and preferably has a cationic charge within the ring; ·Ar + represents an aryl group such as phenyl or naphthyl, which has a cationic charge outside the ring, preferably an ammonium, especially a tri(C 1 ~C 8 ) alkylammonium such as trimethylammonium; ·Ar preferably represents an aryl group which is optionally substituted with one or more electron-donating groups, for example i) optionally substituted (C 1 ~C 8 ) alkyl, ii) optionally substituted (C 1 ~C 8 ) alkoxy, iii) (di)(C 1 ~C 8 )(alkyl)amino in which the alkyl group is optionally substituted with a hydroxyl group, iv) aryl(C 1 ~C 8 ) alkylamino, v) an aryl group optionally substituted with an optionally substituted N-(C 1 ~C 8 ) alkyl-N-aryl(C 1 ~C 8 ) alkylamino, especially phenyl, or alternatively, Ar represents a djurolidine group; ·Ar'‘ represents an optionally substituted (hetero)aryl group, for example preferably one or more (C 1 ~C 8)alkyl, hydroxyl, (di)(C 1 ~C 8 )(alkyl)amino, (C 1 ~C 8 )alkoxy or phenyl optionally substituted with a phenyl or pyrazolyl group; ·R a and R b may be the same or different and represent a hydrogen atom or, optionally, preferably a (C 1 ~C 8 )alkyl group optionally substituted by a hydroxyl group; or ·otherwise, the substituent R a is Het + 's substituent and / or R b is Ar's substituent and / or R a is R b and together with the atoms bearing them form a (hetero)cycloalkyl; in particular, R a and R b represent a hydrogen atom or a (C 1 ~C 4 )alkyl group optionally substituted by a hydroxyl group; ·Q - represents an anionic counterion such as a halide, alkyl sulfate or alkyl sulfonate.

[0115] In particular, azo and hydrazono direct dyes of formulas (IIb)-(Vb) having an intracyclic cationic charge as defined above can be mentioned. More specifically, cationic direct dyes of formulas (IIb)-(Vb) having an intracyclic cationic charge, as described in WO 95 / 15144 pamphlet, WO 95 / 01772 pamphlet and EP 714954 specification, can be mentioned.

[0116] Preferably, the following direct dyes can be mentioned.

Chemical formula

[0117] In particular, the dyes of formulas (II-1) and (IV-1) are selected from Basic Red 51, Basic Yellow 87 and Basic Orange 31 or derivatives thereof.

Chemical formula

[0118] Fluorescent dye The direct dye can be selected from fluorescent direct dyes.

[0119] Examples of fluorescent dyes that can be used in the present invention include neutral, anionic or cationic dyes selected from the following dyes: acridine, acridone, benzanthrone, benzimidazole, benzimidazolone, benzindole, benzoxazole, benzopyran, benzothiazole, coumarin, difluoro{2-[(2H-pyrrol-2-ylidene-kN)methyl]-1H-pyrrolato-kN}boron (BODIPY®), diketopyrrolopyrrole, fluorinezin, (poly)methine (especially cyanine and styryl / hemi-cyanine), naphthalimide, naphthanilide, naphthylamine (such as dansyl), oxadiazole, oxazine, perylene, perinone, perylene, polyene / carotenoid, squalane, stilbene, xanthene.

[0120] Fluorescent dyes described in European Patent Application Publication No. 1133975, International Publication No. 03 / 029359 Pamphlet, European Patent No. 860636, International Publication No. 95 / 01772 Pamphlet, International Publication No. 95 / 15144 Pamphlet and European Patent No. 714954, and those described in various chapters of the encyclopaedia “The Chemistry of Synthetic Dyes” by K. Venkataraman, 1952, Academic Press, Volumes 1 - 7, “Kirk - Othmer Encyclopaedia of Chemical Technology”, Chapter “Dyes and Dye Intermediates”, 1993, Wiley and Sons and “Ullmann’s Encyclopaedia of Industrial Chemistry”, 7th edition, Wiley and Sons, and those circulated on the Internet or described in the handbook - “A Guide to Fluorescent Probes and Labeling Technologies”, 10th Ed., Molecular Probes / Invitrogen - Oregon 2005 in print version may also be mentioned.

[0121] According to a preferred variant form, the fluorescent dye is a cationic polymethine containing at least one quaternary ammonium group, such as those of the following formula (Vb). W + -[C(R c )=C(R d )] m -Ar,Q - In formula (Vb), ·W + contains in particular a quaternary ammonium, which is in particular a cationic heterocyclic group or heteroaryl group optionally substituted with one or more (C 1 ~C 8 ) alkyl groups optionally substituted with one or more hydroxyl groups; ·Ar is an aryl group such as phenyl or naphthyl, preferably i) one or more halogen atoms such as chlorine or fluorine; ii) one or more (C 1 ~C 8 ) alkyl, preferably (C 1 ~C 4 ) alkyl group; iii) one or more hydroxyl groups; iv) one or more (C 1 ~C 8 ) alkoxy groups such as methoxy; v) one or more hydroxy(C 1 ~C 8 ) alkyl groups such as hydroxyethyl; vi) one or more amino groups or their C 1 ~C 4 alkyl moiety is preferably a (di)(C 1 ~C 8 ) alkylamino optionally substituted with one or more hydroxyl groups, such as (di)hydroxyethylamino; vii) one or more acylamino groups; viii) one or more heterocycloalkyl groups, such as piperazinyl, piperidyl or a 5- or 6-membered heteroaryl, such as pyrrolidinyl, pyridyl and imidazolinyl, optionally substituted aryl group; ·m’ represents an integer in the range of 1 to 4, preferably, m’ is 1 or 2; more preferably m’ = 1; ·Rc and R d may be the same or different and represent a hydrogen atom, or an optionally substituted (C 1 ~C 8 )alkyl group, preferably a (C 1 ~C 4 )alkyl group, or alternatively, R + adjacent to W c and / or R d adjacent to Ar together with the atoms bearing them form a (hetero)cycloalkyl; in particular, R c is adjacent to W + and together they form a (hetero)cycloalkyl such as cyclohexyl; ·Q - is the anionic counterion as defined above.

[0122] Anionic dyes Direct dyes can be selected from anionic direct dyes or dyes generally referred to as "acid" direct dyes because of their affinity for alkaline substances.

[0123] The term "anionic direct dye" means a direct dye containing at least one CO 2 R or SO 3 R substituent (wherein R represents a hydrogen atom or a cation or ammonium ion derived from a metal or an amine). Anionic dyes can be selected from direct nitro acid dyes, azo acid dyes, azine acid dyes, triarylmethane acid dyes, indoamine acid dyes, anthraquinone acid dyes, indigoid dyes and natural acid dyes.

[0124] Preferably, the anionic direct dye is an acidic anthraquinone.

[0125] The direct dye can preferably be an anionic direct dye selected from the following formulas (III), (III'), (IV), (IV'), (V), (V'), (VI), (VI'), (VII), (VIII), (IX) and (X) and mixtures thereof.

[0126] a) A diarylanionic azo dye of formula (III) or (III’):

Chem.

[0127] Examples of the dye of formula (III) include Acid Red 1, Acid Red 4, Acid Red 13, Acid Red 14, Acid Red 18, Acid Red 27, Acid Red 28, Acid Red 32, Acid Red 33, Acid Red 35, Acid Red 37, Acid Red 40, Acid Red 41, Acid Red 42, Acid Red 44, Pigment Red 57, Acid Red 68, Acid Red 73, Acid Red 135, Acid Red 138, Acid Red 184, Food Red 1, Food Red 13, Acid Orange 6, Acid Orange 7, Acid Orange 10, Acid Orange 19, Acid Orange 20, Acid Orange 24, Yellow 6, Acid Yellow 9, Acid Yellow 36, Acid Yellow 199, Food Yellow 3, Acid Violet 7, Acid Violet 14, Acid Blue 113, Acid Blue 117, Acid Black 1, Acid Brown 4, Acid Brown 20, Acid Black 26, Acid Black 52, Food Black 1, Food Black 2, Food Yellow 3 or Sunset Yellow, and examples of the dye of formula (III') include Acid Red 111, Acid Red 134, Acid Yellow 38.

[0128] b) Anionic pyrazolone azo dyes of formula (IV) or (IV'):

Chemical formula

Chemical formula

[0129] Examples of the dye of formula (IV) include Acid Red 195, Acid Yellow 23, Acid Yellow 27, Acid Yellow 76; an example of the dye of formula (IV’) includes Acid Yellow 17.

[0130] c) Anthraquinone dyes of formula (V) or (V’):

Chemical formula

[0131] Examples of the dyes of formula (V) include Acid Blue 25, Acid Blue 43, Acid Blue 62, Acid Blue 78, Acid Blue 129, Acid Blue 138, Acid Blue 140, Acid Blue 251, Acid Green 25, Acid Green 41, Acid Violet 42, Acid Violet 43, Mordant Red 3; EXT Violet No.2; examples of the dyes of formula (V') include Acid Black 48.

[0132] d) Nitro dyes of formula (VI) or (VI'):

Chemical formula

Chemical formula

[0133] Examples of dyes of formula (VI) include Acid Brown 13 and Acid Orange 3; examples of dyes of formula (VI’) include Acid Yellow 1, the sodium salt of 2,4-dinitro-1-naphthol-7-sulfonic acid, 2-piperidino-5-nitrobenzenesulfonic acid, 2-(4’-N,N-(2’’-hydroxyethyl)amino-2’-nitro)aniline ethanesulfonic acid, 4-β-hydroxyethylamino-3-nitrobenzenesulfonic acid; EXT D&C Yellow 7.

[0134] e) Triarylmethane dyes of formula (VII):

Chemical formula

[0135] Examples of the dyes of formula (VII) include Acid Blue 1; Acid Blue 3; Acid Blue 7; Acid Blue 9; Acid Violet 49; Acid Green 3; Acid Green 5 and Acid Green 50.

[0136] f) Xanthene dyes of formula (VIII): [Chemical formula] In formula (VIII), ·R 45 , R 46 , R 47 and R 48 may be the same or different and represent a hydrogen atom or a halogen atom; ·R 49 , R 50 , R 51 and R 52 may be the same or different and represent a hydrogen or halogen atom, or - (C 1 ~C 6 ) alkyl; - (C 1 ~C 6 ) alkoxy, (C 1 ~C 6 ) alkylthio; - hydroxyl, mercapto; - nitro, nitroso; - (O) 2 S(O - )-, M + (wherein M + represents a hydrogen atom or a cationic counterion); - (O)CO - -, M + (wherein M + is as defined above) represents a group selected from; In particular, R 53 , R 54 , R 55 and R 48 represent a hydrogen or halogen atom; · G represents an oxygen or sulfur atom or an NR e group (wherein R e is as defined above); in particular, G represents an oxygen atom; · L represents an alkoxide O - , M + ; a thioalkoxide S - , M + or an NR f group (wherein R f represents a hydrogen atom or a (C 1 ~C 6 ) alkyl group, and M + is as defined above; M + is particularly sodium or potassium); · L’ represents an oxygen or sulfur atom or an ammonium group: N + R f R g (wherein R f and R g may be the same or different and represent a hydrogen atom, a (C 1 ~C 6 ) alkyl group or an optionally substituted aryl group); in particular, L’ represents an oxygen atom or a phenylamino group optionally substituted by one or more alkyl or (O) m S(O - )-, M + groups (wherein m and M + are as defined above); · Q and Q’ may be the same or different and represent an oxygen or sulfur atom; in particular, Q and Q’ represent an oxygen atom; · M + is as defined above.

[0137] Examples of the dyes of formula (VIII) include Acid Yellow 73; Acid Red 51; Acid Red 52; Acid Red 87; Acid Red 92; Acid Red 95; Acid Violet 9.

[0138] g) Indole dyes of formula (IX): [Chemical] In formula (IX), ·R 53 、R 54 、R 55 、R 56 、R 57 、R 58 、R 59 and R 60 may be the same or different and each represents a hydrogen atom or - (C 1 ~C 6 ) alkyl; - (C 1 ~C 6 ) alkoxy, (C 1 ~C 6 ) alkylthio; - hydroxyl, mercapto; - nitro, nitroso; - R°-C(X)-X’-, R°-X’-C(X)-, R°-X’-C(X)-X’’- (wherein R° represents a hydrogen atom or an alkyl or aryl group; X, X’ and X’’ may be the same or different and each represents an oxygen or sulfur atom or NR (wherein R represents a hydrogen atom or a (C 1 ~C 6 ) alkyl group)); - (O) 2 S(O - )-,M + (wherein M + represents a hydrogen atom or a cationic counterion); - (O)CO - -,M + (wherein M + is as defined above) and represents a group selected from; ·G represents an oxygen or sulfur atom or an NR e group (wherein R e is as defined above); in particular, G represents an oxygen atom; ·R i and R h may be the same or different and each represents a hydrogen atom or a (C 1 ~C 6 ) alkyl group; Formula (IX) is - at least one (O) 2 S(O - )-, M’ + group (wherein M’ + represents a cationic counterion); or - at least one (O)CO - -, M’ + group (wherein M’ + represents a cationic counterion); It is understood to preferably contain at least one sodium sulfonate group .

[0139] As an example of the dye of formula (IX), Acid Blue 74 can be mentioned.

[0140] h) Quinoline-based dyes of formula (X):

Chemical formula

[0141] Examples of the dyes of formula (X) include Acid Yellow 2, Acid Yellow 3 and Acid Yellow 5.

[0142] More specifically, the dyes of formulas (III) to (VIII) useful in the present invention are selected from the following: Acid Red 87 (VIII) (C.I. 45380); sodium salt of 2,4-dinitro-1-naphthol-7-sulfonic acid (VI’) (C.I. 10316); Acid Orange 3 (VI) (C.I. 10383); Acid Yellow 9 / Food Yellow 2 (III) (C.I. 13015); Direct Red 45 / Food Red 13 (III) (C.I. 14780); Acid Black 52 (III) (C.I. 13711); Acid Yellow 36 (III) (C.I. 13065); sodium salt of 1-hydroxy-2-(2’,4’-xylyl-5-sulfonatoazo)naphthalene-4-sulfonic acid / Food Red 1 (III) (C.I. 14700); Acid Red 14 / Food Red 3 / Mordant Blue 79 (III) (C.I. 14720); sodium salt of 4-hydroxy-3-[(2-methoxy-5-nitrophenyl)diaza]-6-(phenylamino)naphthalene-2-sulfonic acid / Acid Brown 4 (III) (C.I. 14805); Acid Orange 7 / Pigment Orange 17 / Solvent Orange 49 (III) (C.I. 15510); Food Yellow 3 / Pigment Yellow 104 (III) (C.I. 15985); Acid Red 27 / Food Red 9 (III) (C.I. 16185); Acid Orange 10 / Food Orange 4 (III) (C.I. 16230); Acid Red 44 (III) (C.I. 16250); Acid Red 33 / Food Red 12 (III) (C.I. 17200); Acid Red 184 (III) (C.I. 15685); Acid Violet 3 (III) (C.I. 19125); sodium salt of 1-hydroxy-2-(4’-acetamidophenylazo)-8-acetamidonaphthalene-3,6-disulfonic acid / Acid Violet 7 / Food Red 11 (III) (C.I. 18055); Acid Red 135 (III) (C.I.18130); Acid Yellow 27(IV)(C.I.19130); Acid Yellow 23 / Food Yellow 4(IV)(C.I.19140); 4’-(Sulfonato-2’’,4’’-dimethyl)-bis-(2,6-phenylazo)-1,3-dihydroxybenzene / Acid Orange 24(III)(C.I.20170); Sodium salt of 1-amino-2-(4’-nitrophenylazo)-7-phenylazo-8-hydroxynaphthalene-3,6-disulfonic acid / Acid Black 1(III)(C.I.20470); (4-((4-methylphenyl)sulfonyloxy)phenylazo)-2,2’-dimethyl-4-((2-hydroxy-5,8-disulfonato)naphthylazo)biphenyl / Acid Red 111(III’)(C.I.23266); Food Black 2(III)(C.I.27755); 1-(4’-sulfonatophenylazo)-4-((2’’-hydroxy-3’’-acetylamino-6’’,8’’-disulfonato)naphthylazo)-6-sulfonatonaphthalene (tetrasodium salt) / Food Black 1(III)(C.I.25440); Acid Blue 9(VII)(C.I.42090); Acid Violet 43(V)(C.I.60730); Acid Green 25(V)(C.I.61570); Sodium salt of 1-amino-4-cyclohexylamino-9,10-anthraquinone-2-sulfonic acid / Acid Blue 62(V)(C.I.62045); Acid Blue 78(V)(C.I.62105); Sodium salt of 4-hydroxy-3-((2-methoxyphenyl)azo)-1-naphthalenesulfonic acid / Acid Red 4(III)(C.I.14710); 2-piperidino 5-nitrobenzenesulfonic acid(VI’); 2(4’-N,N(2’’-hydroxyethyl)amino-2’-nitro)aniline ethanesulfonic acid(VI’); 4-β-hydroxyethylamino-3-nitrobenzenesulfonic acid(VI’); Acid Violet 49(VII)(C.I.42640); Acid Blue 7(VII)(C.I.42080); Sodium salt of 1,2-dihydroxy-3-sulfoanthraquinone / Mordant Red 3(V)(C.I.58005); Sodium salt of 1 - amino - 9,10 - dihydro - 9,10 - dioxo - 4 - (phenylamino) anthracene - 2 - sulfonic acid / Acid Blue 25(V) (C.I. 62055); Sodium salt of 4 - hydroxy - 3 - ((2 - methoxyphenyl) azo) - 1 - naphthalenesulfonic acid / Acid Red 4(III) (C.I. 14710).

[0143] Most of these dyes are described in the Color Index, especially as published by The Society of Dyers and Colorists, P.O. Box 244, Perkin House, 82 Grattan Road, Bradford, Yorkshire, BD1 2JB, England.

[0144] Particularly preferred anionic dyes are those specified in the Color Index by the numbers C.I. 58005 (sodium salt of 1,2-dihydroxy-9,10-anthraquinone-3-sulfonic acid), C.I. 60730 (sodium salt of 2-[(9,10-dihydro-4-hydroxy-9,10-dioxo-1-anthracenyl)amino]-5-methylbenzenesulfonic acid), C.I. 15510 (sodium salt of 4-[(2-hydroxy-1-naphthalenyl)azo]benzenesulfonic acid), C.I. 15985 (disodium salt of 6-hydroxy-5-[(4-sulfophenyl)azo]-2-naphthalenesulfonic acid), C.I. 17200 (disodium salt of 5-amino-4-hydroxy-3-(phenylazo)-2,7-naphthalenesulfonic acid), C.I. 20470 (disodium salt of 1-amino-2-(4'-nitrophenylazo)-7-phenylazo-8-hydroxy-3,6-naphthalenedisulfonic acid, inner salt), C.I. 42090 (disodium salt of N-ethyl-N-[4-[[4-[ethyl(3-sulfophenyl)methyl]amino]phenyl](2-sulfophenyl)methylene]-2,5-cyclohexadien-1-ylidene]-3-sulfobenzenemethanaminium hydroxide, inner salt), C.I. 61570 (disodium salt of 2,2'-[(9,10-dihydro-9,10-dioxo-1,4-anthracenediyl)diimino]bis[5-methyl]benzenesulfonic acid).

[0145] Compounds corresponding to the mesomeric or tautomeric forms of structures (III) to (X) can also be used.

[0146] Natural dyes The direct dyes can be selected from natural direct dyes.

[0147] Among the natural direct dyes that can be used according to the present invention, there can be mentioned Lawson, Juglone, Alizarin, Purpurin, Carmic acid, Kermesic acid, Purpurogallin, Protocatechuic aldehyde, Indigo, Isatin, Curcumin, Spinulosin, Apigenidin, Orcein, Brazilein, Brachylein, Hemin and Hematoxylin. Extracts or decoctions containing these natural dyes, especially henna-based compresses or extracts, can also be used.

[0148] According to a preferred embodiment, the direct dye is selected from the triarylmethane direct dyes of the following formulas (IIa 1 ) and (IIa 2 ) and mixtures thereof.

Chemical formula

[0149] Preferably, the direct dye is selected from neutral and cationic direct dyes and mixtures thereof.

[0150] More preferentially, the direct dye is preferably selected from Basic Red 51, HC Blue 15 and mixtures thereof.

[0151] The direct dye may be present in the composition in a total content in the range of 0.001% to 5% by mass, preferably 0.01% to 3% by mass, more preferentially 0.1% to 1% by mass, and even more preferentially 0.1% to 0.5% by mass, based on the total mass of the composition.

[0152] Additional basic agent The composition may also contain one or more additional basic agents other than the carbonates, bicarbonates and silicates defined above.

[0153] According to a preferred embodiment, the composition according to the invention does not contain additional basic agents selected from aqueous ammonia and / or alkanolamines.

[0154] Acidifying agent The composition may also contain one or more acidifying agents.

[0155] pH of the composition The composition according to the invention preferably has a pH of 11 or less, preferably 10.5 or less, preferably 10 or less.

[0156] The pH of the composition according to the invention can be in the range of 8 to 11, preferably 8 to 10.5, more preferably 8 to 10.

[0157] According to a particular preferred embodiment, the pH of the composition according to the invention varies from 8.3 to 10.

[0158] Other characteristics of the composition The composition preferably contains water in a content in the range of 5% to 99% by weight, more preferably 5% to 80% by weight, based on the total weight of the composition.

[0159] The composition may also contain at least one organic solvent.

[0160] The term "organic solvent" means an organic substance that can dissolve without chemically modifying other substances.

[0161] The composition according to the invention can be in liquid form, in the form of a beauty liquid, in a thickened form, in particular in the form of a gel, cream, wax or paste or foam.

[0162] The composition according to the invention may also contain one or more additional compounds selected from nonionic, anionic, cationic or amphoteric surfactants; cationic, anionic, nonionic or zwitterionic, associative or non-associative thickening polymers of natural or synthetic origin; silicones in the form of oils, gums or resins; or vegetable, mineral or synthetic non-silicone oils; UV screening agents; pearlescent agents and metal oxides such as titanium dioxide, fillers such as clays; fragrances; peptizing agents; vitamin agents; and preservatives.

[0163] Method for simultaneously decolorizing and dyeing keratin fibers According to a second aspect, the subject of the invention is a method for simultaneously decolorizing and dyeing keratin fibers, the method comprising applying the composition as defined above to the keratin fibers.

[0164] In particular, the composition is applied to wet or dry keratin fibers.

[0165] Preferably, the keratin fibers are dark keratin fibers.

[0166] The term "dark keratin fibers" means keratin fibers having a tone depth of 6 or less (dark blond), preferably 4 or less (chestnut).

[0167] "Tone depth" is a unit known to hair styling experts and is published on pages 215 and 278 of the work Sciences des traitements capillaires [Hair treatment sciences] by Charles Zviak, published by Masson in 1988; the tone depth ranges from 1 (black) to 10 (very light blond) according to the European scale, 1 unit corresponding to 1 tone, and the higher the numerical value, the lighter the tone.

[0168] The composition can advantageously be applied to the keratin fibers in an amount such that the composition ranges from 0.1 g to 20 g per gram of keratin fibers.

[0169] The composition is left standing on the fibers for a certain period of time, generally from 1 minute to 1 hour, preferably from 5 minutes to 60 minutes.

[0170] By way of example, the composition can be left standing on the fibers for 50 minutes.

[0171] The composition can be left standing on the fibers under a closed system. Non-limiting examples of closed systems include wrapped closed systems made from aluminum foil or plastic film or hair caps with or without holes.

[0172] The temperature during the method of simultaneously decolorizing and dyeing is usually from room temperature (15°C to 25°C) to 80°C, preferably from room temperature to 60°C.

[0173] By way of example, the temperature during the method of simultaneously decolorizing and dyeing is 33°C.

[0174] After treatment, the keratin fibers are optionally rinsed with water, optionally washed with shampoo, then rinsed with water, and then either dried or left to air dry.

[0175] For the drying step, blotting paper, a hair dryer or a hooded dryer can be used.

[0176] The composition according to the invention is preferably prepared by mixing at least two compositions. Preferably, the mixing of the at least two compositions is carried out by formulating immediately before applying the composition according to the invention to the keratin fibers.

[0177] According to a preferred embodiment, the composition according to the invention comprises two compositions (A) and (B1): - i) a composition (A) comprising one or more chemical oxidizing agents selected from hydrogen peroxide, hydrogen peroxide generating systems other than peroxide salts as defined above and mixtures thereof; - a composition (B1), ii) One or more compounds selected from carbonates, carbonate generating systems, bicarbonates, bicarbonate generating systems, and mixtures thereof as defined above; and iii) One or more silicates as defined above; and iv) One or more oxidation dyes as defined above A composition (B1) comprising Or a mixture of three compositions (A), (B2) and (C): - i) A composition (A) comprising one or more chemical oxidizing agents selected from hydrogen peroxide, hydrogen peroxide generating systems other than peroxide salts, and mixtures thereof as defined above; and - A composition (B2), ii) One or more compounds selected from carbonates, carbonate generating systems, bicarbonates, bicarbonate generating systems, and mixtures thereof as defined above; and iii) One or more silicates as defined above A composition (B2) comprising - iv) A composition (C) comprising one or more oxidation dyes as defined above Obtained from the mixture of

[0178] Preferably, at least one of the composition (A) or (B1) or at least one of the three compositions (A), or (B2), or (C) is aqueous. More preferably, the composition (A) is aqueous.

[0179] According to a particular embodiment, the composition (B1) or (B2) is anhydrous.

[0180] The term "aqueous composition" means a composition containing at least 5% by weight of water. The aqueous composition preferably contains more than 10% by weight of water, even more preferably more than 20% by weight of water.

[0181] According to a more preferred embodiment, the composition according to the invention comprises two compositions (A') and (B1'): - i) A composition (A') containing hydrogen peroxide; and - Composition (B1’) comprising ii) one or more compounds selected from carbonates, bicarbonates and mixtures thereof as defined above; and iii) one or more silicates as defined above; and iv) one or more oxidation dyes as defined above and a composition (B1’); or a mixture of three compositions (A’), (B2’) and (C’): - i) a composition (A’) containing hydrogen peroxide; and - a composition (B2’) comprising ii) one or more compounds selected from carbonates, bicarbonates and mixtures thereof as defined above; and iii) one or more silicates as defined above and a composition (B2’); - iv) a composition (C’) containing one or more oxidation dyes as defined above obtained from the mixture.

[0182] Preferably, at least one of the compositions (A’) or (B1’) or at least one of the three compositions (A’), (B2’) or (C’) is aqueous. More preferably, the composition (A’) is aqueous.

[0183] According to a particular embodiment, the composition (B1’) or (B2’) is anhydrous.

[0184] Use According to a third aspect, the subject of the invention is the use of the composition as defined above for simultaneously decolorizing and dyeing keratin fibers.

[0185] Multi-compartment device (kit) According to a fourth aspect, the subject of the invention is a multi-compartment device (kit) comprising · a first compartment containing the composition (A) as defined above; and · A second compartment containing the composition (B1) defined above, and comprising; or · A first compartment containing the composition (A) defined above; and · A second compartment containing the composition (B2) defined above; and · A third compartment containing the composition (C) defined above is a multi-compartment device (kit).

[0186] Preferably, the multi-compartment device comprises · A first compartment containing the composition (A’) defined above; and · A second compartment containing the composition (B1’) defined above comprising; or · A first compartment containing the composition (A’) defined above; and · A second compartment containing the composition (B2’) defined above; and · A third compartment containing the composition (C’) defined above and includes.

Examples

[0187] The present invention can be more clearly understood by the following examples, which do not limit the nature of the present invention. In the following examples, unless otherwise specified, all amounts are expressed as mass percentages relative to the total mass of the composition.

[0188] Example 1 The following compositions were prepared and then applied according to the application procedures described below.

[0189]

Table 1

[0190]

Table 2

[0191] Application Procedure Apply 10 g of each of Compositions C1 to C8 to 1 g of dark-colored, 8-strand hair of a Caucasian HT4 person on a hot plate maintained at a temperature of 33°C. Cover everything with a cellophane film for 50 minutes.

[0192] Then, rinse the strands, wash with a standard shampoo, rinse again, and then dry.

[0193] Results:

[0194] [Table 3]

[0195] The composition according to the present invention enables the simultaneous decolorization and dyeing of dark-colored hair in a single step, making it possible to obtain pastel colors.

Claims

1. A composition comprising: i) one or more chemical oxidizing agents selected from hydrogen peroxide, hydrogen peroxide generating systems other than peroxide salts, and mixtures thereof; ii) a compound selected from bicarbonates which is ammonium bicarbonate; iii) one or more silicates; iv) one or more oxidation dyes wherein the silicate is present in a total content in the range of 3% to 35% by mass based on the total mass of the composition.

2. The composition according to claim 1, wherein the chemical oxidizing agent is hydrogen peroxide.

3. The composition according to claim 1 or 2, wherein the chemical oxidizing agent is present in a total content in the range of 1% to 12% by mass based on the total mass of the composition.

4. The composition according to any one of claims 1 to 3, wherein the compound ii) is present in a total content in the range of 0.01% to 20% by mass based on the total mass of the composition.

5. The composition according to any one of claims 1 to 4, wherein the silicate is selected from alkali metal silicates, alkaline earth metal silicates, aluminum silicate, trimethylammonium silicate, and mixtures thereof.

6. The composition according to any one of claims 1 to 5, wherein the silicate is present in a total content in the range of 4% to 20% by mass based on the total mass of the composition.

7. The composition according to any one of claims 1 to 6, wherein the mass ratio of the total amount of bicarbonate ii) / the total amount of silicate iii) is 0.00025 to 2000.

8. The composition according to any one of claims 1 to 7, wherein the mass ratio of the total amount of bicarbonate ii) / the total amount of chemical oxidizing agent i) is 0.0008 to 20.

9. The composition according to any one of claims 1 to 8, comprising persulfate in a total content of less than 10% by mass.

10. The composition according to any one of claims 1 to 9, wherein the pH of the composition is in the range of 8 to 11.

11. The composition according to any one of claims 1 to 10, wherein the oxidation dye is selected from one or more oxidative bases optionally combined with one or more coupling agents.

12. The composition according to any one of claims 1 to 11, wherein the oxidation dye iv) is present in a total content in the range of 0.001% to 5% by mass based on the total mass of the composition.

13. A method for simultaneously decolorizing and dyeing keratin fibers, the method comprising applying the composition according to any one of claims 1 to 12 to the keratin fibers.

14. The composition according to any one of claims 1 to 12 is two compositions (A) and (B1): - i) Composition (A) containing one or more chemical oxidizing agents selected from hydrogen peroxide, hydrogen peroxide generating systems other than hydrogen peroxide salts, and mixtures thereof according to claim 1 or 2; - Composition (B1), ii) A compound selected from bicarbonates which is ammonium bicarbonate according to claim 1; and iii) One or more silicates according to claim 1 or 5; and iv) One or more oxidative dyes according to claim 1 or 11 Composition (B1) containing The mixture of or three compositions (A), (B2) and (C): - i) Composition (A) containing one or more chemical oxidizing agents selected from hydrogen peroxide, hydrogen peroxide generating systems other than hydrogen peroxide salts, and mixtures thereof according to claim 1 or 2; - Composition (B2), ii) A compound selected from bicarbonates which is ammonium bicarbonate according to claim 1; and iii) One or more silicates according to claim 1 or 5 Composition (B2) containing - iv) Composition (C) containing one or more oxidative dyes according to claim 1 or 11 The method according to claim 13, obtained from the mixture of.

15. Use of the composition according to any one of claims 1 to 12 for simultaneously decolorizing and dyeing keratin fibers.

16. A multi-compartment device, - A first compartment containing the composition (A) according to claim 14; and - A second compartment containing the composition (B1) according to claim 14 Or; - A first compartment containing the composition (A) according to claim 14; and - A second compartment containing the composition (B2) according to claim 14; and - A third compartment containing the composition (C) according to claim 14 A multi-compartment device containing.

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