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US 8,439,982 B2Granted
Dyeing of fibers using supercritical carbon dioxide and electrophoresis
AssigneeEmpire Technology Development LLC
InventorThomas A. Yager
Life of this patent
Estimating the term…
Abstract
The present technology provides an illustrative method for dyeing textiles that includes intermixing a dye with super-critical carbon dioxide (sc-CO2) to form a dye solution and immersing a fabric in the dye solution. The method further includes applying an electric field to the dye solution to cause charged particles of the dye solution to separate and cause the dye to diffuse into the fabric.
Claims20
A method for dyeing textiles, the method comprising:
- intermixing a dye with super-critical carbon dioxide (sc-CO2) to form a dye solution;
- contacting a fabric with the dye solution;
- and
- applying an electric field to the dye solution to cause separation of charges within particles of the dye solution and to cause the dye to diffuse into the fabric.
1 more element
An apparatus for dyeing textiles, the apparatus comprising:
- an intermixing component configured to retain and intermix a dye with super-critical carbon dioxide (sc-CO2) to form a dye solution;
- a fabric immersion component configured to contact a fabric with the dye solution;
- and
- a cathode and an anode configured to produce an electric field in the dye solution, wherein the electric field causes separation of charges with particles of the dye solution to ionize and cause the dye to diffuse into the fabric.
1 more element
Dependencies are inferred from the claim text.