A RESEARCH ON YARN LIVELINESS TENDENCY OF STAPLE YARNS

Yam snarling tendency causes several problems at the various post-spinning processes, such as winding, warping, weaving and knitting. In this study we analyzed the snarling tendency of short and long staple yams. The yarn samples were produced with different raw material, spinning technique and yam parameter variations. Long staple yams from 100% wool and 100% acrylic (PAN) fibers were spun in two different nominal yam counts with three different yarn twist factors using four different yarn spinning techniques. Short staple yarns from 100% cotton, 100% viscose, 100% polyester, 100% modal and 100% lyocell fibers were spun in two different nominal yarn counts with three different yarn twist factors using three different yarn spinning techniques. After spinning process their twist liveliness values were measured on Keisokki Kringel Factor Meter yarn liveliness test apparatus. The tests results were analyzed and evaluated in order to asses the effects of raw material, spinning technique mid yam parameters on yarn twist liveliness.