| 摘要 |
The composition for oxidative dyeing of keratin fibers has a pH of from 6 to 9.5 and contains a developer/coupler combination, an oxygen-oxidoreductase/substrate system and a peroxidase. The coupler substance includes a substituted m-phenylenediamine of formula I <IMAGE> (I) wherein R1 is a C1- to C6-alkoxy group, an unsubstituted alkyl group having from one to six carbon atoms, a C1- to C6-alkyl group substituted with a hydroxy group, a halogen atom or a C1- to C6-alkoxy group; and R2, R3 are each, independently of each other, a hydrogen atom, another unsubstituted C1- to C6-alkyl group, an unsubstituted C1- to C6-ether group having at most two oxygen atoms, another C1- to C6-alkyl group substituted with a hydroxy group, a halogen atom or a C1- to C6-alkoxy group substituent or an ether group substituted with a hydroxy group, a halogen atom or a C1- to C6-alkoxy group, and S represents a hydrogen atom or a further alkyl group having from one to six carbon atoms, or a physiologically compatible salt of the m-phenylenediamine of the formula (I).
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