Patent ID: 6423100
Filing Date: 2002-07-23
Classification: A61K,A61Q

Abstract:
A ready-to-use composition for the oxidation dyeing of keratin fibres, comprising:at least one self-oxidizing dye chosen from benzene self-oxidizing dyes chosen from the compounds of formula (I) below, and the acid addition salts thereof: â€ƒin which: R1 is chosen from a hydrogen atom, C1-C4 alkyl radicals, and amino radicals, R2 is chosen from C1-C4 alkyl, hydroxyl, amino, mono(C1-C4)alkylamino, and di(C1-C4) alkylamino radicals, R3 is chosen from a hydrogen atom, hydroxyl radicals, and amino radicals, R4 is chosen from a hydrogen atom and amino radicals; wherein at least two of the radicals R1 to R4 independently of each other, are chosen from hydroxyl, amino, mono(C1-C4)alkylamino, and (C1-C4)alkylamino radicals, at least one enzyme chosen from 2-electron oxidoreductases, and at least one donor for said enzyme; wherein said composition is free of oxidation base, and wherein said at least one self-oxidizing dye is not chosen from 2,4-diaminophenol, and salts thereof.