Hair dye compositions and methods utilizing 2-substituted-1-naph

Details Hair dye compositions and methods utilizing 2-substituted-1-naph Hair dye compositions and methods utilizing 2-substituted-1-naph

1993-05-17

1994-09-06

Lieberman, Paul

Bleaching and dyeing; fluid treatment and chemical modification

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

Hair dyeing

8405, 8406, 8410, 8412, 8423, A61K 713

Patent

active

053444639

ABSTRACT:
2-substituted-1-naphthols when coupled with an oxidation dye precursor in an oxidative dye system produce a long lasting intense color to hair. Use of such couplers makes available to the colorist novel oxidation hair dyes which surprisingly show a color shift to the red. Dyestuffs prepared through use of the 2-substituted-1-naphthol couplers are substantially more acid-fast compared to like dyestuffs using a 1-naphthol coupler. Compositions and a method of dyeing hair are also disclosed.

REFERENCES:
patent: 3960476 (1976-06-01), Ghilardi et al.
patent: 4725282 (1988-02-01), Hoch et al.
patent: 4754069 (1988-06-01), Braun et al.

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