Direct dyes having a quaternary center with a long aliphatic cha

Details Direct dyes having a quaternary center with a long aliphatic cha Direct dyes having a quaternary center with a long aliphatic cha

1994-07-28

1996-01-23

Ivy, C. Warren

Organic compounds -- part of the class 532-570 series

Organic compounds

Polycyclo ring system containing anthracene configured ring...

552239, 552240, 552243, C09B 116

Patent

active

054866294

ABSTRACT:
Direct dyes having a quaternary center with a long aliphatic chain, compositions containing those dyes, and the process of using them to dye hair are disclosed. These dyes have a higher affinity for hair and are more shampoo stable than conventional direct dyes, and produce pleasing uniform dyeing.

REFERENCES:
patent: 3968218 (1976-07-01), Bouillon et al.
patent: 4088661 (1978-05-01), Baserga
patent: 4425132 (1984-01-01), Grollier et al.
patent: 4886517 (1989-12-01), Bugaut et al.

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