Cationic direct triazo dyes, dye composition comprising them and process for dyeing keratin fibres using it
申请人:Greaves Andrew
公开号:US20060016022A1
公开(公告)日:2006-01-26
The present invention relates to cationic direct dyes of formula (I) below:
in which W
1
represents —NR
8
— or —O—; X
1
represents N; CR
9
; R
1
and R
2
, which may be identical or different, represent a hydrocarbon chain; R
3
and R
4
, which may be identical or different, represent a hydrogen atom, a halogen atom, a nitro group, a cyano group or a hydrocarbon chain; R
5
, R
6
, R
7
, R
8
and R
9
, which may be identical or different, represent a hydrogen atom or a hydrocarbon chain; L represents a specific bridging group and X represents a cosmetically acceptable organic or mineral anion.
It likewise relates to a dye composition comprising, in a medium suitable for dyeing human keratin fibres, such a dye, a process using it, and also a multicompartment device.
本发明涉及以下式子的阳离子直接染料(I):
其中,W1代表- NR8-或-O-; X1代表N; CR9; R1和R2,它们可以相同也可以不同,代表一个碳氢链;R3和R4,它们可以相同也可以不同,代表一个氢原子,卤素原子,硝基,氰基或碳氢链;R5,R6,R7,R8和R9,它们可以相同也可以不同,代表一个氢原子或碳氢链;L代表一个特定的桥接基团,X代表一个化妆品认可的有机或矿物质阴离子。本发明还涉及一种染料组合物,包括在适合用于染色人类角蛋白纤维的介质中的这种染料,使用它的过程,以及一种多室装置。