| 摘要 |
PCT No. PCT/JP79/00321 Sec. 371 Date Aug. 25, 1980 Sec. 102(e) Date Aug. 25, 1980 PCT Filed Dec. 22, 1979 PCT Pub. No. WO80/01288 PCT Pub. Date Jun. 26, 1980.Method and apparatus for false twisting a yarn. The apparatus includes false twisting endless belts arranged to intersect each other at a nip point, a pivotally mounted arm having a yarn guide on one end thereof, a pivotally mounted bracket and adjustable cam means for maintaining the arm in separate adjusted positions wherein yarn guided by the yarn guide passes directly through the nip point of the endless belts to provide a predetermined number of false twists to the yarn and wherein the yarn is preliminarily false twisted with a twist number less than the predetermined twist number during initiation of false twisting. The method of the invention includes the steps moving the arm into a position wherein the yarn is engaged with the false twisting endless belts but not at the nip point or intersection thereof to impart initial or preliminary false twisting to the yarn and subsequently positioning the arm so that yarn guided thereby is passed through the nip point between the false twisting endless belts. |
