Process for altering the appearance of hair using a composition containing direct dyes and non-hydroxide bases
US8556994B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Dec 12, 2012 |
| Grant date | Oct 15, 2013 |
| Priority date | — |
| Expiry date | Dec 12, 2032 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61Q5/10
- WIPO fieldPharmaceuticals
- WIPO sectorChemistry
Abstract
A process for altering the appearance of hair, the process comprising the steps of (a) providing a composition for dyeing and reducing curl and/or frizziness of hair, said composition comprising, in a cosmetically acceptable carrier: (i) at least one non-hydroxide base; (ii) at least one protein denaturant different from (a)(ii); (iii) at least one direct dye; (iv) at least one thickening agent; (v) optionally, at least one alkoxysilane comprising at least one solubilizing functional group; and (vi) optionally, at least one fatty substance; (b) contacting the hair with the composition in (a) to form treated hair; (c) smoothing the treated hair using a combination of heat and means for physically smoothing hair to form smoothed hair; (d) optionally, shampooing the smoothed hair; and (e) rinsing the smoothed hair.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.