| 摘要 |
PCT No. PCT/CH96/00016 Sec. 371 Date Sep. 20, 1996 Sec. 102(e) Date Sep. 20, 1996 PCT Filed Jan. 15, 1996 PCT Pub. No. WO96/23091 PCT Pub. Date Aug. 1, 1996The method for continuous production of a multifilament stretchable weft yarn for tire cord fabric includes swirling polyester-POY-filaments with an initial titre of from 170 to 260 dtex by means of a gas having a pressure of from 0.5 to 3 bar in a swirling nozzle, and immediately thereafter, shrinking with an overfeed of from 40 to 80% at from 220 DEG to 240 DEG C. for at least 0.2 sec to form a stretchable multifilament weft yarn. This weft yarn has a rough surface with non-slip properties, a tenacity of greater than 7 cN/tex, an elongation at break of from 170 to 270% and a thermal shrinkage at 160 DEG C. of from +2% to -2%, measured at 160 DEG C. during 15 minutes at a pretension of 0.1 cN/tex. |
