Enhancing the colour perception of artificially coloured hair
Patent Information
- Authority / Receiving Office
- CN · China
- Current Assignee / Owner
- THE PROCTER & GAMBNE CO
- Publication Date
- 2007-01-17
- Estimated Expiration
- Not applicable · inactive patent
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Abstract
Description
technical field
[0001] This invention relates to the coloring of hair. The invention herein enhances the color perception of artificially dyed hair. Background of the invention
[0002] The artificial coloring of hair is extensively described in the prior art and a large number of different shades capable of achieving such a coloring effect are commercially available as hair coloring kits. While consumers are satisfied with the range of options offered by these different shades of color, there remains an overall need for more intense colors in a long-lasting manner.
[0003] Without undertaking extensive research to identify new dye molecules, the present inventors have discovered that application of aminosilicones to the hair after the hair has been artificially dyed can provide artificially dyed hair with a permanently enhanced color perception.
[0004] The use of aminosilicones is well known in the art - see eg EP 1 31 2342 and EP 1 312 350 . But it has never been rep...