Composition used to dye hair, comprises fatty substance, surfactant, oxidation base, alkalizing agent, benzimidazole-derived coupler and its salts, optical and geometrical isomers, tautomers and/or solvates, and chemical oxidizing agent
Composition comprises (i) fatty substances, (ii) surfactants, (iii) oxidation bases, (iv) alkalizing agents, (v) benzimidazole-derived couplers (I) and their salts, optical and geometrical isomers, tautomers and/or solvates, and (vi) chemical oxidizing agents. The amount of fatty substances is 10 wt.%. Composition comprises (i) fatty substances, (ii) surfactants, (iii) oxidation bases, (iv) alkalizing agents, (v) benzimidazole-derived couplers of formula (I) and their salts, optical and geometrical isomers, tautomers and/or solvates, and (vi) chemical oxidizing agents. The amount of fatty substances is 10 wt.%. R1 : H or linear or branched 1-6C alkyl (substituted by OH, preferably 2-hydroxyethyl)； and R2-R5 : linear or branched 1-6C alkyl, linear or branched 1-6C, preferably 1C alkoxy (both optionally substituted by OH, preferably 2-hydroxyethyl), H or halo, preferably chloro. Independent claims are included for: (1) dyeing keratin fibers, preferably human keratin fibers such as hair, comprising applying the composition on the keratin fibers； and (2) a device comprising compartments comprising a first compartment containing the composition (A) and a second compartment containing the composition (B), where the compositions are intended to be mixed before the application. [Image].La présente invention concerne une composition de teinture des fibres kératiniques, en particulier des fibres kératiniques humaines telles que les cheveux, comprenant un ou plusieurs corps gras, un ou plusieurs tensioactifs, une ou plusieurs bases d'oxydation, un ou plusieurs coupleurs particuliers de type benzimidazole et un ou plusieurs agents alcalinisants, la teneur en corps gras dans la composition de teinture représentant au total au moins 10% en poids par rapport au poids total de ladite composition. Elle a de même pour objet un procédé de coloration mettant en œuvre une telle composition ainsi que des dispositifs multicompartiments appropriés pour la mise en œuvre dudit procédé.
