Color changing materials arranged in slow particle coloration materials
Assigneeadidas AG
InventorMichel Reginald Pierre Joseph Lussier
Life of this patent
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Abstract
Articles comprises iron oxide colloidal nanocrystals arranged within chains, wherein the chains of nanocrystals are embedded within a material used to form the article or a transfer medium used to transfer a color to the article are described. The material or transfer medium includes elastic properties that allow the nanocrystals to display a temporary color determined by the strength of an external force applied to the article, and the material or transfer medium includes memory properties that cause the displayed temporary color to dissipate when the external force is removed, wherein the dissipation of the displayed temporary color is sufficiently slow as to be visually observable by an average observer's unaided eye.
Claims21
A method of manufacturing an article capable of displaying a temporary color when an external force is applied comprising,
- embedding chains of iron oxide colloidal nanocrystals into at least one material,
- wherein the material comprises elastic and memory properties that allow the nanocrystals to display a temporary color determined by the strength of an external force and allow the color to dissipate when the force is removed, and
- incorporating the at least one material into the article to display a temporary color when the external force is applied.
A method of manufacturing an article capable of displaying a temporary color when an external force is applied comprising,
- embedding chains of iron oxide colloidal nanocrystals into at least one material,
- wherein the material comprises elastic that allow the nanocrystals to display a color that is determined by a spacing between the nanocrystals within each chain,
- wherein the spacing is adjustable through the application of an external force, and
- wherein the material comprises memory properties that allow the color to dissipate;
- and
- incorporating the at least one material into the article.
Dependencies are inferred from the claim text.