Composition and method for dyeing keratin fibers

Details Composition and method for dyeing keratin fibers Composition and method for dyeing keratin fibers

1998-03-23

1999-10-26

Liott, Caroline D.

Bleaching and dyeing; fluid treatment and chemical modification

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

Hair dyeing

8565, 8567, 8568, 8576, 8603, 8607, A61K 713, D06P 190

Patent

active

059720441

ABSTRACT:
An aqueous or aqueous-alcoholic composition for dyeing natural or synthetic fibers, especially hair, contains a combination of at least one cyclic oxo-substituted enediol according to formula I: ##STR1## wherein R.sub.1 and R.sub.2 are the same or different and independently of each other represent a hydrogen atom or an alkali metal atom, or R.sub.1 and R.sub.2 together represent an alkaline earth metal atom and n=0, 1, 2 or 3; and at least one member selected from the group consisting of malonic acid dinitrile, maleic acid diaminodinitrile, 2,5-diamino-6-nitropyridine, 1,2,3,4-tetrahydro-6-nitroquinoxaline, 7-amino-3,4-dihydro-6-nitro-2H-1,4-benzoxazine and substituted nitrobenzene compounds; as well as water and at least one cosmetic ingredient including solvents other than water, surfactants, thickeners, care materials and adjuvant materials.

REFERENCES:
patent: 5131912 (1992-07-01), Ehara et al.
patent: 5558677 (1996-09-01), Wagenmann et al.
English language Abstract of DE 4,335,626, Henkle, Apr. 1995.
Fatiadi, "Pseudooxocarbons," Journal of Organic Chemistry, pp. 1338-1339, 1980 (no month available).

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