Neutral and cationic naphthalene and colorants for keratin...

Details Neutral and cationic naphthalene and colorants for keratin... Neutral and cationic naphthalene and colorants for keratin...

2004-10-26

2009-06-09

Shiao, Rei-tsang (Department: 1626)

Bleaching and dyeing; fluid treatment and chemical modification

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

Hair dyeing

C548S437000, C546S099000

Reexamination Certificate

active

07544215

ABSTRACT:
The present invention has for an object novel naphthalene dyes of formula (I) and colorants for keratin fibers, particularly human hair, containing these compounds.

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