US 12,404,608 B2
Dyeable fabric comprising melt-spun thermoplastic polyurethane fibers
Lalith B. Suragani Venu, Brecksville, OH (US); Ravi R. Vedula, North Ridgeville, OH (US); Christopher A. Sprague, Cuyahoga Falls, OH (US); and Brandon Walton, Richmond Heights, OH (US)
Assigned to Lubrizol Advanced Materials, Inc., Cleveland, OH (US)
Appl. No. 18/030,552
Filed by Lubrizol Advanced Materials, Inc., Cleveland, OH (US)
PCT Filed Oct. 26, 2021, PCT No. PCT/US2021/056607
§ 371(c)(1), (2) Date May 5, 2023,
PCT Pub. No. WO2022/093790, PCT Pub. Date May 5, 2022.
Claims priority of provisional application 63/106,020, filed on Oct. 27, 2020.
Prior Publication US 2023/0366131 A1, Nov. 16, 2023
Int. Cl. D01F 6/70 (2006.01); D04B 1/18 (2006.01); D06P 3/26 (2006.01)
CPC D01F 6/70 (2013.01) [D04B 1/18 (2013.01); D06P 3/26 (2013.01); D10B 2331/10 (2013.01); D10B 2401/041 (2013.01); D10B 2401/046 (2013.01); D10B 2401/061 (2013.01); D10B 2401/14 (2013.01)] 14 Claims
 
1. A fabric comprising;
a. a first fiber component, wherein the 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 together form the fabric,
wherein the fabric is dyed at a temperature of at least 130° C., and wherein the melt-spun thermoplastic polyurethane fiber exhibits hysteresis after 5th load and un-load cycle of
(a) at 100% elongation has hysteresis of less than 30%;
(b) at 150% elongation has hysteresis of less than 30%; and
(c) at 200% elongation has hysteresis of less than 30%;
wherein hysteresis is measured according to ASTM D2731, wherein the second fiber component is a melt-spun thermoplastic fiber comprising the reaction product of a polyol component, wherein the polyol component comprises a co-polymer diol derived from caprolactone monomer and poly(tetramethylene ether glycol); a hydroxyl terminated chain extender component; and a first diisocyanate component; and an isocyanate functional prepolymer cross-linking agent, and wherein the co-polymer diol comprises the reaction product of 50% by weight caprolactone monomer polyol and 50% by weight poly(tetramethylene ether glycol).