Azo derivatives or pyridine N-oxide for use in hair dye composit

Details Azo derivatives or pyridine N-oxide for use in hair dye composit Azo derivatives or pyridine N-oxide for use in hair dye composit

1973-06-18

1976-05-11

Drezin, Norman A.

Bleaching and dyeing; fluid treatment and chemical modification

Treatment of hides, skins, feathers and animal tissues

Tanning

8 101, 8 41R, 260156, D06P 306

Patent

active

039559181

ABSTRACT:
Compositions for dyeing human hair contain in an aqueous or hydroalcoholic solution an azo derivative of pyridine N-oxide as a hair dye present in amounts of 0.001 - 1 weight percent of said composition which has a pH ranging from 3 - 9.5.

REFERENCES:
patent: 3249597 (1966-05-01), Dehn, Jr. et al.
patent: 3368941 (1968-02-01), Boosen
patent: 3386991 (1968-06-01), Gerber
patent: 3393190 (1968-07-01), Stright

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