69112-72-7Relevant articles and documents
Methods for dyeing keratinous fibres with aminoindoles, compositions and devices for use
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, (2008/06/13)
Method for dyeing keratinous fibres, in particular human keratinous fibres, such as hair, characterized in that a composition (A) containing, in a medium appropriate for dyeing, at least one aminoindole corresponding to the formula: STR1 in which: R1 and R3, independently of one another, represent a hydrogen atom or a C1 -C4 alkyl group; R2 denotes hydrogen or a C1 -C4 alkyl group or COOR', R' being a hydrogen atom or a C1 -C4 alkyl group; R4 represents a hydrogen atom or a C1 -C4 alkyl, C1 -C4 hydroxyalkyl or C2 -C4 polyhydroxyalkyl group; Z1 represents a hydrogen or halogen atom or a C1 -C4 alkyl group or OR; R being a hydrogen atom or a C1 -C4 alkyl group; and Z2 represents a hydrogen atom or a C1 -C4 alkyl group; and its salts is applied to said fibres, the colour being developed with the aid of an oxidizing system.