Process for dyeing keratin materials using at least one blue, purple or green dye and at least one disulfide, thiol or protected thiol fluorescent dye
US11278482B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jun 18, 2018 |
| Grant date | Mar 22, 2022 |
| Priority date | — |
| Expiry date | Jun 18, 2038 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61K2800/94
- WIPO fieldPharmaceuticals
- WIPO sectorChemistry
Abstract
The present invention relates to a process for dyeing keratin fibers, in particular human keratin fibers such as the hair, using a) one or more blue, violet or green dyes and b) one or more disulfide, thiol or protected-thiol fluorescent dyes.The present invention also relates to a cosmetic composition comprising the dyes defined above, and also to a multi-compartment device containing said dyes.The present invention also relates to the use of said dyes for dyeing light keratin fibers, notably human keratin fibers such as the hair, in chestnut-brown, dark chestnut-brown, brown, brown with a tint, or even black, without using an additional dye other than those defined above.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.