Henkel & Cie G.m.b.h.

Hans Peter Kubersky

Erwin Weinrich

Water-soluble substituted and unsubstituted triamino C.sub.1-4 -alkoxy pyrimidines are effective dyes for hair when oxidized in conjunction with a coupling agent. The oxidation can be performed at alkaline pH at room temperature, with air, and provides long-lasting and light-fast dyeings over a broad color range.

Developer-coupler hair dyes based on alkoxy-triamino-pyrimidines

Water-soluble substituted and unsubstituted triamino pyrimidinones are effective dyes for hair when oxidized in conjunction with a coupling agent. The oxidation can be performed at an alkaline pH at room temperature with air, and provides long-lasting and light-fast dyeings over a broad color range.

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Solingen, Germany

Hans Peter Kubersky