Hamre, Schumann, Mueller & Larson, P.C.
Polytetrafluoroethylene real twist yarn and method of producing the same
The PTFE real twist yarn of the present invention is a PTFE real twist yarn obtained by twisting a polytetrafluoroethylene (PTFE) multi-filament slit yarn. The yarn has a circular cross-section with a circularity in the range of 10/8 to 10/10, where the circularity is expressed by the ratio between the major axis width and the minor axis width, the average fineness of filaments is in the range of 1.5 to 200 dtex, a fineness D is in the range of 50 to 6000 dtex, and a twist coefficient K expressed by Formula (1) is in the range of 10000 to 35000:twist coefficient K=number of twists T×(the fineness D of the PTFE real twist yarn)1/2  (1)
Yeu Ming Ti Chemical Industrial Co., Ltd.
D D
D02G D10B
inventional additional
James Chin-Cha Wen-I Chin-Chun Lei-Ti
Huang Chou Kuo Chou Huang