Oxidation dyeing compositions of keratin fibers containing cationic couplers, couplers cationic novel dyeing process and their use for the oxidation dyeing

摘要

And at least one oxidation base or, as a coupler of formula comprising a cationic Z group of at least one formula (II) of (I) at least one (57) [Abstract] The present invention is 2-acyl-aminophenol keratin fibers containing, on oxidation dyeing composition for human keratin fibers such as the hair in particular. Its use as a coupler for the oxidation dyeing of keratin fibers, about 2 cationic acyl aminophenols novel formula (I ') as well as oxidation dyeing process using them also present invention.