Cationic azacyanine dyes and coloring agents containing said...

Bleaching and dyeing; fluid treatment and chemical modification – Dyeing involving animal-derived natural fiber material ,... – Hair dyeing

Reexamination Certificate

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Details

C008S406000, C008S429000, C008S431000, C008S688000, C008S689000, C008S690000, C008S691000, C548S100000

Reexamination Certificate

active

07374583

ABSTRACT:
The present invention relates to agents containing cationic azacyanine dyes having formula (I) for dyeing fibers, such as, for example, keratin fibers, wool, silk or fleeces, and in particular human hair, as well as to new asymmetrical azacyanine dyes.

REFERENCES:
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