Composition for dyeing keratin fibers and dyeing method using same
US6712861B2 · kind B2 · utility
22Cited by
18References
33Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Aug 16, 1999 |
| Grant date | Mar 30, 2004 |
| Priority date | — |
| Expiry date | Aug 16, 2019 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61Q5/10
- WIPO fieldPharmaceuticals
- WIPO sectorChemistry
Abstract
The invention relates to a ready-to-use composition for dyeing keratin fibers, and in particular human keratin fibers such as the hair, comprising, in a medium which is suitable for dyeing, at least one suitably selected cationic direct dye and at least one nitrobenzene direct dye, as well as to the dyeing process using this composition.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.