Hair color compositions and methods for coloring hair
View Patent ↗A hair color composition comprising, in a polar solvent, association structures having contained therein at least one water soluble or water dispersible dye that is operable to impart color to the hair when contacted therewith and a method for coloring hair.
1. A method for restoring color to dyed hair strands that have faded, or applying color to new hair growth, comprising contacting said faded or discolored or new hair growth with a hair color composition comprising, in a polar solvent, association structures in the form of nematic or smectic liquid crystals having contained therein at least one water soluble or water dispersible semi-permanent dye wherein the liquid crystals are formed by the combination of one or more nonionic surfactants in a polar solvent which is a water and at least mono-, di-, or polyhydric alcohol and where in the composition is applied to faded hair strands or new hair growth from one to six weeks after the hair has been oxidatively colored and the composition additionally contains one or more fatty alcohols.
2. The method of claim 1 wherein the composition is applied to faded or discolored strands, or new hair growth, two to four weeks after the hair has been oxidatively dyed.
3. The method of claim 1 wherein the composition is applied to dry hair.
4. The method of claim 1 wherein the composition is in a multiple use container.
5. The method of claim 1 wherein the composition is in a single use container.
6. The method of claim 1 wherein the composition is applied to dry hair and after ten minutes shampooed out.
7. The method of claim 1 wherein the hair color composition comprises at least one water soluble or water dispersible semi-permanent dye selected from the group consisting of basic dye, HC dye, direct dye, disperse dye, acid dye, and mixtures thereof.
8. The method of claim 1 wherein the water soluble or water dispersible semi-permanent dye is present ranging from about 0.001–20% by weight of the total composition.
9. The method of claim 1 wherein the water soluble or water dispersible semi-permanent dye is selected from the group consisting of HC dyes, disperse dyes, and mixtures thereof.
10. The method of claim 1 wherein the water is present ranging from about 0.1–99.9% by weight of the total composition.
11. The method of claim 1 wherein the liquid crystals are smectic lyotropic liquid crystals in lamellar configuration.
12. The method of claim 11 wherein the liquid crystals are present ranging from about 0.01–100% by weight of the total composition.