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US 10,731,291 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.
Claims10
A method of dyeing a material, the method comprising:
- winding a first material around a beam;
- subsequent to winding the first material around the beam, winding a second material around an outermost layer of the first material;
- positioning at least the first material with a first dye profile and the second material with a second dye profile in a common pressure vessel, wherein the second material is one of a textile fabric or a yarn;
- introducing carbon dioxide (“CO2”) with in the pressure vessel such that the CO2 achieves a supercritical fluid (“SCF”) state while in the pressure vessel;
- and
- perfusing, with SCF CO2, the second material with dye from the first material dye profile wherein dye-free SCF CO2 is passed through the first material in the pressurized vessel and the SCF CO2 transports dye from the first material to at least the second material causing the second dye profile to change as the dye perfuses the second material.
3 more elements
Dependencies are inferred from the claim text.