Process for the lightening dyeing of keratin materials using an emulsion comprising a dye and an alkaline agent and an oxidizing composition
US7988738B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Dec 18, 2009 |
| Grant date | Aug 2, 2011 |
| Priority date | — |
| Expiry date | Dec 18, 2029 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61K2800/4322
- WIPO fieldPharmaceuticals
- WIPO sectorChemistry
Abstract
Provided herein is a process for dyeing keratin materials, comprising: applying to said keratin materials a dyeing composition, comprising, a direct emulsion (A) comprising at least one fatty substance other than fatty acids present in an amount greater than 25% by weight; at least one surfactant; at least one alkaline agent; at least one colored or coloring entity chosen from direct dyes and oxidation dyes; and water in an amount greater than 5% by weight relative to the total weight of the direct emulsion (A); and a composition (B) comprising at least one oxidizing agent. Also provided herein is a multi-compartment device comprising, in a first compartment, a direct emulsion (A) comprising at least one fatty substance other than fatty acids present in an amount greater than 25% by weight; at least one surfactant; at least one alkaline agent; at least one colored or coloring entity chosen from direct dyes and oxidation dyes; and water in an amount greater than 5% by weight relative to the total weight of the direct emulsion (A); and, in another compartment, a composition (B) comprising at least one oxidizing agent.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.