Dyeing composition for dyeing keratinous fibers comprising a...

Details Dyeing composition for dyeing keratinous fibers comprising a... Dyeing composition for dyeing keratinous fibers comprising a...

2005-04-19

2005-04-19

Einsmann, Margaret (Department: 1751)

Bleaching and dyeing; fluid treatment and chemical modification

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

Hair dyeing

C008S407000, C008S437000, C008S451000, C008S463000, C008S466000, C008S570000, C008S573000, C008S574000, C548S318100, C548S321100, C540S450000

Reexamination Certificate

active

06881230

ABSTRACT:
The invention concerns a novel dyeing composition for dyeing keratinous fibers, in particular human hair, comprising a cationic azo-dye of formula (I): W1-N═N-W2-W3, as well as the dyeing method using said composition and the novel compounds of formula (I).

REFERENCES:
patent: 5879412 (1999-03-01), Rondeau et al.
patent: 5919273 (1999-07-01), Rondeau et al.
patent: 580 029 (1959-10-01), None
patent: 0 850 636 (1998-07-01), None
patent: 0 852 135 (1998-07-01), None

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