Method and composition for removing semi-permanent color from human hair
US5651960A · kind A · utility
46Cited by
2References
10Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Sep 22, 1995 |
| Grant date | Jul 29, 1997 |
| Priority date | — |
| Expiry date | Sep 22, 2015 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61Q5/08
- WIPO fieldPharmaceuticals
- WIPO sectorChemistry
Abstract
The invention is an aqueous composition for removing coloring from hair treated with semipermanent hair colorant. The composition includes a reducing agent, at least one alcohol, water and an alkaline compound. A sufficient amount of the alkaline compound is employed to maintain the pH of the composition in the range of about 9.0 to about 11.0. The invention also includes a method of removing, or bleaching, colorant from semipermanent colored hair. The method includes applying the aqueous composition to semi-permanently colored hair producing bleached hair. Lastly, the bleached hair is rinsed and shampooed.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.