Hair dye composition
Provided is a hair dye composition containing a direct dye ( 1 ). This hair dye composition has markedly high hair dyeing power, has less color fade over time and undergoes a smaller change in the color tone of the dye after storage. 1 [B 1 , B 2 : the group ( 2 ), ( 3 ), ( 4 ) or ( 5 ); R 1 , R 2 :...
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| Main Authors | , , |
|---|---|
| Format | Patent |
| Language | English |
| Published |
29.11.2001
|
| Online Access | Get full text |
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| Summary: | Provided is a hair dye composition containing a direct dye (
1
). This hair dye composition has markedly high hair dyeing power, has less color fade over time and undergoes a smaller change in the color tone of the dye after storage.
1
[B
1
, B
2
: the group (
2
), (
3
), (
4
) or (
5
); R
1
, R
2
: the group (
6
), (
7
), etc.; X
-
: anion (A: a (substituted) phenylene group, etc., R
3
, R
4
: a (substituted) lower alkyl group, etc.; X
1
: O, -NH- or CH
2
-; X
2
: a (substituted) trimethylene group, etc.; Y: a (substituted) lower alkyl group, etc.; R
5
: a lower alkyl group, etc.; R
6
: a lower alkyl group, etc.; R
7
: H, etc.; X
3
: -OH, -NH
2
- or -SH; R
8
: a lower alkoxy group, etc.; and R
9
: a phenyl group, etc.)]. |
|---|