Bleaching and dyeing; fluid treatment and chemical modification – Dyeing involving animal-derived natural fiber material ,... – Hair dyeing
Patent
1982-11-08
1984-06-12
Meyers, Albert T.
Bleaching and dyeing; fluid treatment and chemical modification
Dyeing involving animal-derived natural fiber material ,...
Hair dyeing
8405, 8406, 8429, 424 59, 424 60, 424 63, A61K 713, A61K 742, A61K 744, A61K 7021
Patent
active
044539410
ABSTRACT:
A composition and process for producing pigmentation in hair and skin is disclosed which employs non-mutagenic compounds to duplicate naturally occurring biosynthetic colors. The composition for imparting golden coloration comprises as active ingredients a solution of a tyrosine derivative having a side chain with a substituted amine group in admixture with certain compounds having a reactive nitrogen moiety, and is topically applied in the presence of an oxidant. The composition for imparting a dark coloration comprises as active ingredients a solution of tyrosine derivative having a side chain free for indole formation in admixture with certain compounds having a reactive nitrogen moiety, and is topically applied in the presence of an oxidant. Mixtures of the two compositions may be applied to impart proportionate intermediate colors.
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Board of Overseers of Goshen College
Kilcoyne John M.
Meyers Albert T.
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