Process for dyeing keratinous fibres and dye composition employi

Details Process for dyeing keratinous fibres and dye composition employi Process for dyeing keratinous fibres and dye composition employi

1988-12-29

1991-04-30

Lieberman, Paul

Bleaching and dyeing; fluid treatment and chemical modification

Dyeing involving animal-derived natural fiber material ,...

Hair dyeing

8423, 8406, 8634, A61K 713

Patent

active

050115006

ABSTRACT:
Process for dyeing keratinous fibers, which comprises applying to these fibers at least one composition (A) containing, in a suitable medium for dyeing, at least one indole derivative and at least one substituted 2-nitro-para-phenylenediamine selected from the group consisting of 1-N-(.beta.-hydroxyethyl)amino-2-nitro-4-N', N'-(bis-.beta.-hydroxyethyl)aminobenzene and 1-N-(.beta.-hydroxyethyl)amino-2-nitro-4-aminobenzene, the color being developed with the aid of an oxidizing system consisting of:

REFERENCES:
patent: 3726635 (1973-04-01), Kalopissis et al.
patent: 4690685 (1987-09-01), Grollier et al.
patent: 4776857 (1988-10-01), Corroll et al.
patent: 4804385 (1989-02-01), Grollier et al.
patent: 4808190 (1989-02-01), Grollier et al.
patent: 4822375 (1989-04-01), Lang et al.

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