Patent ID: 6503283
Filing Date: 2003-01-07
Classification: A61K,A61Q

Abstract:
A ready-to-use composition for dyeing keratin fibers, comprising:at least one cationic direct dye and at least one auto-oxidizable dye chosen from benzene, indole, and indoline auto-oxidizable dyes, wherein when said at least one auto-oxidizable dye is chosen from benzene auto-oxidizable dyes, said benzene auto-oxidizable dyes are chosen from compounds of formula (IV) below and acid-addition salts thereof: â€ƒin which: R18 is chosen from a hydrogen atom, C1-C4 alkyl radicals, and amino radicals, R19 is chosen from C1-C4 alkyl radicals, a hydroxyl radical, amino radicals, mono(C1-C4)alkylamino radicals, and di(C1-C4)alkylamino radicals, R20 is chosen from a hydrogen atom, a hydroxyl radical, and amino radicals, and R21 is chosen from a hydrogen atom and amino radicals; wherein at least two of the radicals R19 to R21 are chosen from, independently of each other, a hydroxyl radical, amino radicals, mono(C1-C4)alkylamino radicals and di(C1-C4)alkylamino radicals.