Dye composition comprising at least one particular dissymetrical polycationic direct dye, dyeing process, use and multi-compartment devices

作者: Alain Lagrange

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摘要: A dye composition for dyeing human keratin fibres, such as hair, comprising at least one dissymmetrical polycationic direct of formula (I) below: Col 1 -Z-Col 2   (I) wherein: and , which differ in structure, are chosen from tazo dyes, methine azomethine phenothiazine triarylmethane xanthene phenanthridine dyes phthalocyanin Z is linear branched, saturated, unsaturated cyclic C -C 20 hydrocarbon-based groups nitrogen atom bearing cationic charge; also to processes fibres using the composition, use multi-compartment devices.