Oxidation hair dyes comprising diamino-substituted pyridines and

Details Oxidation hair dyes comprising diamino-substituted pyridines and Oxidation hair dyes comprising diamino-substituted pyridines and

1985-10-07

1988-11-15

Meyers, Albert T.

Bleaching and dyeing; fluid treatment and chemical modification

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

Hair dyeing

A61K 713

Patent

active

047846674

ABSTRACT:
This invention is directed to oxidation hair dye compositions and their use in the dyeing of human hair. The compositions consist essentially of precursors comprising 2,3-diamino-6-methoxy-pyridines and aromatic amines or diamines. The combination of oxidation dye precursors according to the invention gives bright, deep blue dye finishes having high stability to heat and light.

REFERENCES:
patent: 4473375 (1984-09-01), Clausen

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