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US 8,607,803 B2Granted
Hair treatment process providing dispersed colors by light diffraction
AssigneesThe Procter & Gamble Company, Los Alamos National Security, LLC
InventorsBruce Carvell Lamartine, E. Bruce Orler, Richard Matthew Charles Sutton, Shuangqi Song
Life of this patent
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Abstract
Hair was coated with polymer-containing fluid and then hot pressed to form a composite of hair and a polymer film imprinted with a nanopattern. Polychromatic light incident on the nanopattern is diffracted into dispersed colored light.
Claims17
A hair treatment process comprising:
- coating hair with a fluid that includes a suitable polymer having a suitable glass transition temperature,
- inserting the hair coated with the fluid into a pressing device, the pressing device including a heating block configured with a nanopattern designed to diffract incident light into dispersed colors, the pressing device capable of transforming the fluid-coated hair into a hair-polymer film composite, the composite having a surface with a nanostructured surface pattern that is complementary to the nanopattern from the heating block,
- pressing the hair coated with the fluid under conditions suitable for forming the composite,
- cooling the composite and removing it from the pressing device,
- wherein polychromatic light incident on the nanostructured surface pattern is diffracted into dispersed colors that are visible on the nanostructured surface pattern of the composite.
2 more elements
Dependencies are inferred from the claim text.