| abstract |
A composition for dyeing keratin fibres, and in particular human keratin fibres such as the hair, characterized in that it comprises, in a medium which is suitable for dyeing: at least one coupler selected from 2-iminoindoline derivatives of formula (I) and acid addition salts thereof: <IMAGE> (I) in which: R1 represents hydrogen, alkyl, hydroxyalkyl, alkoxycarbonyl or acyl; R2 represents hydrogen, alkyl, phenyl or arylsulphonyl; R3 represents hydrogen or alkyl which may be substituted with one or more hydroxyl, alkoxy, amino, alkylamino, dialkylamino, cyano or aryl groups; R4 and R5, which may be identical or different, denote hydrogen, hydroxyl, alkyl, alkoxy, amino, alkylamino, dialkylamino, aralkyl, halogen or a nitro group; and at least one oxidation base. |