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US 11,674,262 B2Granted
Supercritical fluid rolled or spooled material finishing
AssigneeNIKE, Inc.
InventorMatt W. Kelly
Life of this patent
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Abstract
Methods are directed to the use of a supercritical fluid for performing a dyeing of a material such that dye from a first material is used to dye a second material. A supercritical fluid is passed through a first material in a pressurized vessel. The supercritical fluid transports the dye from the first material to at least a second material causing a dye profile of the second material to change as a result of dye from the first material perfusing the second material.
Claims12
A method of applying a material finish, the method comprising:
- winding a first material having a material finish around a beam;
- subsequent to winding the first material around the beam, winding a target material around an outermost layer of the first material;
- positioning the target material and the second material in a common pressure vessel;
- introducing carbon dioxide (“CO2”) within the pressure vessel;
- pressurizing the pressure vessel to at least 73.87 bar, wherein the CO2 achieves a supercritical fluid (“SCF”) state while in the pressure vessel;
- initiating a flow of the CO2 before or after achieving SCF state;
- perfusing, using SCF CO2, the target material with material finish from the first material;
- reducing the pressure within the pressure vessel while maintaining the flow of CO2;
- and
- reducing the flow of the CO2 after the pressure is below 73.87 bar.
7 more elements
Dependencies are inferred from the claim text.