Assessment of influence of diagnol path offset in spinning in hairiness control

Textile Technology

The spinning geometry of a ring frame plays an important role in affecting the yarn properties. This project examines the effect of diagonal yarn path in ring spinning on yarn properties. Both left diagonal and right diagonal yarn arrangements with three offsets are tried in ring spinning for two cotton counts 40S C & 6OS C. The various yarn results, especially hairiness from Zweigle hairiness tester, are compared with the results of yarn produced from conventional yarn path. The results shows that yarn hairiness values are significantly reduced with left diagonal path when compared to conventional straight path. It is also noticed that not only the hairiness value, but the total imperfections also found reduced in left diagonal path when compared to straight yarn path in 40S C in all the three offsets. In right diagonal path, the total imperfections found get reduced in 40SC in all the three offsets. But hairiness has increased. In 60SC, both hairiness and imperfections are increased compared to straight yarn path. A modified ring spinning system was proposed to create diagonal yarn paths and offsets. The system was tested on yarn counts 20s, 40s, and 60s (100% cotton) under different diagonal offsets. The results showed that the modified system improved yarn hairiness without altering tensile and unevenness properties. The maximum reduction in hairiness was 42.6%, 28.5%, and 21.3%, with coarser yarns showing more significant improvement. The diagonal path was found to be the most important factor in determining yarn hairiness across all yarn counts.

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