ALEXANDRIA, Va., March 26 -- United States Patent no. 12,258,687, issued on March 25, was assigned to KUNSHAN YIJIA JU TEXTILE Co. LTD. (Kunshan, China).
"Method for manufacturing flame-retardant bulky fiber without flame retardant on fully-drawn yarn (FDY) machine" was invented by Shunlin Cao (Kunshan, China), Qionghua Cai (Kunshan, China), Guochuang Zhang (Kunshan, China) and Xuewen Lou (Kunshan, China).
According to the abstract* released by the U.S. Patent & Trademark Office: "A method for manufacturing a flame-retardant bulky fiber without a flame retardant on a fully-drawn yarn (FDY) machine is provided. The flame-retardant bulky fiber is formed by winding a plurality of spiral yarns arranged in the same direction; and the yarns are...