Hair Treatment Process Providing Dispersed Colors by Light Diffraction
A hair treatment process for providing dispersed colors by light diffraction including (a) coating the hair with a material comprising a polymer, (b) pressing the hair with a pressing device including one or more surfaces, and (c) forming a secondary nanostructured surface pattern on the hair that is complementary to the primary nanostructured surface pattern on the one or more surfaces of the pressing device. The secondary nanostructured surface pattern diffracts light into dispersed colors that are visible on the hair. The section of the hair is pressed with the pressing device for from about 1 to 55 seconds. The polymer has a glass transition temperature from about 55° C. to about 90° C. The one or more surfaces include a primary nanostructured surface pattern.
1 . A hair treatment process for providing dispersed colors by light diffraction comprising:
a. coating the hair with a material comprising a polymer;
b. pressing a section of the hair with a pressing device comprising a heating block comprising a surface, wherein the surface comprises a primary nanostructured surface pattern; and
c. forming a secondary nanostructured surface pattern on the section of the hair that is complementary to the primary nanostructured surface pattern on the surface of the heating block;
wherein the secondary nanostructured surface pattern diffracts light into dispersed colors that are visible on the section of the hair; and
wherein the section of the hair is pressed with the pressing device for from about 1 to about 55 seconds.
2 . The hair treatment process of claim 1 , wherein the material is aqueous.
3 . The hair treatment process of claim 1 , wherein the material comprises a plasticizer.
4 . The hair treatment process of claim 1 , wherein the material comprises a surfactant.
5 . The hair treatment process of claim 1 , wherein the polymer has a glass transition temperature of from about 55° C. to about 90° C.
6 . The hair treatment process of claim 1 , wherein the polymer is selected from the group consisting of poly-lactic acid polymers, acrylate polymers, polyvinyl alcohol polymers, polyurethanes, copolymers thereof, and combinations thereof.
7 . The hair treatment process of claim 1 , wherein the section of the hair is pressed with the pressing device at a pressure of from about 3 psi to about 7 psi.
8 . The hair treatment process of claim 1 , wherein the section of the hair is pressed with the pressing device at a temperature above the glass transition temperature of the polymer.
9 . The hair treatment process of claim 1 , wherein the primary nanostructured surface pattern is selected from the group consisting of sawtooth patterns, spiral patterns, ring patterns, Archimedean patterns, ellipsoidal patterns, patterns comprising hyperbolic rings, patterns comprising parabolic rings, and combinations thereof.