| 摘要 |
Process for the temporary dyeing of keratinous fibers with a composition containing an insoluble pigment obtained by the oxidative polymerization of an indole compound of formula (I) <IMAGE> in which R1 and R3 are hydrogen or alkyl; R2 is hydrogen, alkyl carboxyl or alkoxy carbonyl; R4 and R7 are hydrogen, hydroxy, alkyl, amino, alkoxy, acyloxy or acylamino; R5 is hydrogen, hydroxy, alkoxy, alkyl, halogen, amino, acyloxy, acylamino or trimethylsilyloxy; R6 is hydrogen, hydroxy, alkoxy, amino, acyloxy, acylamino, trimethylsilyloxy or hydroxyalkylamino; R5 and R6 can also form, together with the carbon atoms to which they are attached, a carbonyl-dioxy ring; at least one of the radicals R4 to R7 is an OZ or NHR8 grouping, the R8 radical of the NHR8 grouping being hydrogen, acyl or hydroxyalkyl and the Z radical of the OZ grouping being hydrogen, acyl, alkyl or a trimethylsilyl group.
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