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US 2023/0366131 A1Published application
Dyeable fabric comprising melt-spun thermoplastic polyurethane fibers
AssigneeLubrizol Advanced Materials, Inc.
InventorsLalith B. Suragani Venu, Ravi R. Vedula, Christopher A. Sprague, Brandon Walton
Life of this patent
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Abstract
The invention relates to a melt-spun thermoplastic polyurethane fiber which comprises a copolymer diol derived from caprolactone and polyether polyol and fabrics made therefrom, both of which are capable of being dyed under disperse dyeing conditions.
Claims24
A fabric comprising;
- a. a first fiber component is a thermoplastic hard yarn having 10% to 75% ultimate elongation measured according to ASTM D2256;
- b. a second fiber component comprising a melt-spun thermoplastic polyurethane fiber having at least 300% ultimate elongation measured according to ASTM D2731;
- wherein the first fiber component and the second fiber component are knitted together for form the fabric and wherein the fabric is dyed at a temperature of at least 130° C.
(canceled)
(canceled)
11-13. (canceled)
A process for preparing a dispersed dyed fabric, comprising the steps of:
- (1) providing a fabric comprising (a) a first fiber component is a thermoplastic hard yarn having 10% to 75% ultimate elongation measured according to ASTM D2256 and (b) a second fiber component comprising a melt-spun thermoplastic polyurethane fiber having at least 300% ultimate elongation measured according to ASTM D2731;
- (2) dyeing the fabric at a temperature of at least 130° C. using disperse dyeing conditions.
25-27. (canceled)
Dependencies are inferred from the claim text.