Use of hydroxynaphthoquinones for dyeing human keratin fibres

Details Use of hydroxynaphthoquinones for dyeing human keratin fibres Use of hydroxynaphthoquinones for dyeing human keratin fibres

1984-12-28

1989-12-19

Robinson, Douglas W.

Bleaching and dyeing; fluid treatment and chemical modification

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

Hair dyeing

8428, A61K 713

Patent

active

048880264

ABSTRACT:
The use in dyeing human keratin fibres, especially human hair, of 2-hydroxy-1,4-naphthoquinones of the formula: ##STR1## in which R.sub.1 denotes a hydrogen or halogen atom, or a hydroxy, alkoxy, nitro, alkyl or acyl group, and R.sub.2, R.sub.3, R.sub.4 and R.sub.5 independently of one another denote hydrogen or a hydroxyl, alkoxy, alkyl or acyl group, such that at least one of the substituents R.sub.1 to R.sub.5 is other than hydrogen, and if R.sub.1, R.sub.3 and R.sub.4 denote hydrogen, R.sub.2 and R.sub.5 cannot simultaneously denote hydroxyl is described.

REFERENCES:
patent: 3041244 (1962-06-01), Feit
patent: 3516778 (1970-06-01), Brunner
patent: 4358286 (1982-11-01), Grollier et al.
Edited by E. H. Rodd, "Chemistry of Carbon Compounds", 1956, pp. 1318-1323, 1400.
R. H. Thomson, "Naturally Occurring Quinones", 1957, pp. 55-60, 73-75, 100-102, 109-110, 125, 128-132, 135-140.
John F. Corbett, "The Chemistry of Synthetic Dyes", 1971, pp. 475-483.
Chemical Abstracts, vol. 87 (1977), 153693z, p. 84.
Abstract of Japanese Patent Appln. No. 54-111594.

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