Nitroso compounds as direct dyes

Details Nitroso compounds as direct dyes Nitroso compounds as direct dyes

1991-01-04

1992-01-07

Clingman, A. Lionel

Bleaching and dyeing; fluid treatment and chemical modification

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

Hair dyeing

8414, 8428, 8429, 564441, A61K 713

Patent

active

050787497

ABSTRACT:
4-nitroso anilines and cosmetically acceptable salts thereof are employed as direct dyes. Compositions for dyeing keratin fibers and containing said 4-nitroso anilines and an alkalizing agent are also disclosed.

REFERENCES:
patent: 3884627 (1975-05-01), Brody et al.
patent: 3896117 (1975-07-01), Bugaut et al.
patent: 4330291 (1982-05-01), Bugaut et al.
patent: 4473374 (1984-09-01), Bugaut et al.

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