Dicationic bis-hydrazone compound, dye composition...

Details Dicationic bis-hydrazone compound, dye composition... Dicationic bis-hydrazone compound, dye composition...

2005-10-14

2008-08-12

Elhilo, Eisa B (Department: 1796)

Bleaching and dyeing; fluid treatment and chemical modification

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

Hair dyeing

C008S406000, C008S408000, C008S410000, C008S435000, C008S568000, C008S570000, C008S574000, C546S249000, C548S300100, C548S400000

Reexamination Certificate

active

07410506

ABSTRACT:
The present disclosure relates to a novel family of dicationic bis-hydrazone compounds that may be used as direct dyes, and to a dye composition for dyeing keratin fibers, for example, human keratin fibers such as the hair, comprising, in a suitable dyeing medium, at least one such compound. Also disclosed are dyeing processes implementing this composition and uses thereof.

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