US Patent Issued to NAN YA PLASTICS on Nov. 18 for "Method for processing waste fabric containing polyester and wool fibers" (Taiwanese Inventors)

ALEXANDRIA, Va., Nov. 18 -- United States Patent no. 12,473,420, issued on Nov. 18, was assigned to NAN YA PLASTICS Corp. (Taipei, Taiwan).

"Method for processing waste fabric containing polyester and wool fibers" was invented by Te-Chao Liao (Taipei, Taiwan), Jung-Jen Chuang (Taipei, Taiwan) and Chung-Chi Su (Taipei, Taiwan).

According to the abstract* released by the U.S. Patent & Trademark Office: "A method for processing a waste fabric containing polyester and wool fibers includes the following steps. The method is to treat the waste fabric with an acid catalyst aqueous solution at 160deg C. to 170deg C. The wool fibers are degraded and completely separated from the polyester fibers in a treatment process. Afterwards, the polyester fi...