Hair dye composition

Details Hair dye composition Hair dye composition

2005-11-08

2005-11-08

Elhilo, Eisa (Department: 1751)

Bleaching and dyeing; fluid treatment and chemical modification

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

Hair dyeing

C008S662000, C008S677000, C008S678000, C008S690000, C008S691000, C008S692000

Reexamination Certificate

active

06962610

ABSTRACT:
Provided is a hair dye composition containing a dissociative direct dye represented by the following formula (1):wherein, R1to R4each represents H or substituent, X represents OH or —NHSO2R5, R5represents an alkyl, aryl or heterocyclic group, and A represents a divalent group capable of forming a methine dye as a whole compound, together with the portion other than A.The hair dye composition of the present invention is capable of strongly dyeing the hair with a vivid color tone without causing decomposition of the dye during the dyeing process, exhibits an excellent resistance against sunlight, hair washing, perspiration, friction and heat, has a high stability against an alkali agent and an oxidizing agent, has a high dyeing property, and has less color fade after the passage of time.

REFERENCES:
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patent: 6451069 (2002-09-01), Matsunaga et al.
patent: 2002/0010969 (2002-01-01), Goettel et al.
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patent: 199 51 134 (2001-04-01), None
patent: 0 474 191 (1992-03-01), None
patent: 6-48050 (1994-02-01), None
patent: 6-271435 (1994-09-01), None

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