Processes for dyeing keratinous fibres based on 5,6 dihydroxyind

Bleaching and dyeing; fluid treatment and chemical modification – Dyeing involving animal-derived natural fiber material ,... – Hair dyeing

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8424, 8405, 8423, A61K 713

Patent

active

051123606

ABSTRACT:
Process for dyeing keratinous fibres, comprising the application of:

REFERENCES:
patent: 4804385 (1989-02-01), Grollier et al.
patent: 4808190 (1989-02-01), Grollier et al.
patent: 4822375 (1989-04-01), Lang et al.
patent: 4992077 (1991-02-01), Tennigkeit et al.

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