Process for the lightening dyeing of keratin materials using at least one anhydrous dyeing composition comprising at least one alkaline agent and at least one oxidizing composition
US7914591B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Dec 18, 2009 |
| Grant date | Mar 29, 2011 |
| Priority date | — |
| Expiry date | Dec 18, 2029 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61K2800/88
- WIPO fieldPharmaceuticals
- WIPO sectorChemistry
Abstract
Provided is a process for dyeing keratin materials, comprising applying to the keratin materials: a) at least one anhydrous composition (A) comprising at least one fatty substance, at least one surfactant, at least one alkaline agent, and at least one colored or coloring species; and b) at least one aqueous composition (B) comprising at least one oxidizing agent; wherein: the at least one fatty substance is present in the at least one anhydrous composition (A) in an amount of greater than 20% by weight, relative to the total weight of the at least one anhydrous composition (A); and the at least one colored or coloring species comprises at least one oxidation dye and/or at least one direct dye; on the condition that when the at least one anhydrous composition (A) comprises, as the at least one colored or coloring species, only at least one direct dye, the at least one fatty substance is present in an amount ranging from 40 to 80% by weight, relative to the total weight of the at least one anhydrous composition (A). Also provided is a multi-compartment device comprising: the composition (A) and the composition (B) as defined above.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.