| 摘要 |
<p>A method for dyeing keratin fibres by applying at least one para-aminophenol of formula (I), wherein Y is oxygen or sulphur, and R is alkyl, monohydroxyalkyl or polyhydroxyalkyl, and acid addition salts thereof, as well as 6-hydroxyindole and/or 7-hydroxyindole, the colour being revealed at alkaline pH by means of an oxidizing agent.</p> |
