| 摘要 |
Oxidation dye for keratin fibres contains at least one diaminoaniline of formula (I) or its acid salt as a dye precursor: R1-R6 = H, 1-4C alkyl, 2-3C hydroxyalkyl, 1-4C alkoxy-(2-3C) alkyl, 2-3C aminoalkyl (optionally N-substituted by one or two 1-4C alkyl) or 2,3-dihydroxypropyl; or NR1R2, NR3R4 and/or NR5R6 = aziridinyl, azetidinyl, pyrrolidinyl, piperidinyl, azepinyl or azocinyl or morpholino, thiomorpholino or piperazino (N-substituted by R7). R = H, halo or 1-4C alkyl; and R7 = H, 1-4C alkyl, 2-3C hydroxyalkyl, 1-4C alkoxy-(2-3)C alkyl, 2-3C aminoalkyl or 2,3-dihydroxypropyl; provided that at least one of R1-R6 is not H.
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