Back to results
US 12,084,809 B2Granted
Supercritical fluid rolled or spooled material finishing
AssigneeNIKE, Inc.
InventorMatt W. Kelly
Life of this patent
Estimating the term…
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:
- positioning a first sacrificial material with a first dye profile in a pressure vessel, wherein the first sacrificial material includes an outermost layer;
- wrapping a target material around the outermost layer of the first sacrificial material, wherein the target material has a second dye profile;
- introducing carbon dioxide (“CO2”) within the pressure vessel such that the CO2 achieves a supercritical fluid (“SCF”) state while in the pressure vessel;
- and
- perfusing, with SCF CO2, the target material with dye from the first sacrificial material dye profile, wherein dye-free SCF CO2 is passed through the first sacrificial material in the pressure vessel and the SCF CO2 transports dye from the first sacrificial material to at least the target material causing the second dye profile to change as the dye perfuses the target material.
2 more elements
A method of dyeing a material, the method comprising:
- positioning a first sacrificial material with a first dye profile in a pressure vessel, wherein the first sacrificial material includes a first material outermost layer;
- positioning a second sacrificial material with a third dye profile in the pressure vessel, wherein the second sacrificial material includes a second material outermost layer;
- wrapping a target material around the first material outermost layer of the first sacrificial material and around the second material outermost layer, wherein the target material has a second dye profile;
- introducing carbon dioxide (“CO2”) within the pressure vessel such that the CO2 achieves a supercritical fluid (“SCF”) state while in the pressure vessel;
- and
- perfusing, with SCF CO2, the target material with dye from both the first dye profile and the third dye profile, wherein dye-free SCF CO2 is passed through the first sacrificial material and the second sacrificial material in the pressure vessel and the SCF CO2 transports dye from both of the first sacrificial material and the second sacrificial material to at least the target material causing the second dye profile to change as the dye perfuses the target material.
3 more elements
Dependencies are inferred from the claim text.