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US 11,635,640 B2Granted
Switching fibers for textiles
AssigneeE Ink Corporation
InventorsRichard J. Paolini, Jr., Jay William Anseth
Life of this patent
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Abstract
A method of forming a color-changing fiber that can be incorporated into fabrics and other woven materials. The color changing fibers include an annular wall and a conductive wire axially extending through the annular wall, a core strand surrounded by the annular wall and extending axially through a central portion of the fiber, and an encapsulated electro-optic medium disposed on a surface of the core strand.
Claims12
A method of making a flexible color-changing fiber comprising:
- coating at least a portion of a surface of a conductive core strand with capsules that encapsulate an electro-optic medium comprising a non-polar solvent and first and second charged pigment particles, wherein the first and second charged pigment particles have charge and color differences from each other, and;
- inserting the coated conductive core strand through a preform;
- inserting a conductive wire through the preform;
- and
- drawing down the preform to form a fiber comprising an annular wall, such that the conductive wire extends axially through the annular wall and the conductive core strand extends axially through a central portion of the fiber.
2 more elements
Dependencies are inferred from the claim text.