HAIR COLORANTS WITH SUBSTANTIVE DYES

摘要

2107796 9217156 PCTABS00016 Hair colourants based on direct-acting hair dyes containing a combination of two or more hair dyes dye even damaged hair particularly uniformly by reductive and oxidative hair treatment if this combination contains at least one nitrodiphenyl amine dye of the formula (I) in which one of the groups R3 to R7 is a -SO3H or a -COOH- group, or one of its water-soluble salts besides other direct-acting dyes.