Hair dye compositions containing 4,7-diaminoindazoles

Details Hair dye compositions containing 4,7-diaminoindazoles Hair dye compositions containing 4,7-diaminoindazoles

1976-06-14

1978-08-01

Meyers, Albert T.

Bleaching and dyeing; fluid treatment and chemical modification

Treatment of hides, skins, feathers and animal tissues

Tanning

8 10, 8 101, 8 11, 8 32, 548371, A61K 713

Patent

active

041040201

ABSTRACT:
Dyestuffs of the oxidizable developer-coupler type wherein the developer is a novel 4,7-diaminoindazole of the formula: ##STR1## wherein one of the R's represents C.sub.1-4 alkyl and the other R represents a substitutent selected from the group consisting of C.sub.1-4 alkyl and H (and the water-soluble salts thereof) are very satisfactory for coloring hair. They are readily oxidized by atmospheric oxygen at room temperature without a catalyst, and they provide intense, bright, and fast dyeings in a short time. They are applied in conventional manner from aqueous medium.

REFERENCES:
patent: 2315220 (1943-03-01), Petitcolas et al.
patent: 3133081 (1964-05-01), Lafferty et al.
patent: 3176020 (1965-03-01), Sureau et al.
patent: 3711506 (1973-01-01), Wagner et al.
patent: 3766207 (1973-10-01), Minieri
patent: 3849064 (1974-11-01), Wiskott
Chemical Abstracts, vol. 50, columns 4917-4919, (1956).

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