A Modified Ring Spinning System with Various Diagonal Yarn Path Offsets

A modified ring spinning system was proposed to make various diagonal yarn paths and offsets by equipping a traverse guide between delivery roller nip and lappet guide while the yarn leaving the front roller nip threaded through the traverse guide and went to bobbin below. Test properties of yarn counts 20s, 40s, 60s (100% cotton), spun on the modified yarn path system under various right & left diagonal offset d = 0, 6, 12, 18 mm. with a high speed camera, photographs of spinning triangle in different diagonal paths were captured and studied. The results suggested this modification system could improve yarn hairiness without changing tensile and unevenness properties greatly in right diagonal path. The maximum reduction of 3-9 mm long hairiness from Ne 20, Ne 40 to Ne 60 was 42.6%, 28.5% and 21.3%. The coarser yarns received more significant improvement on hairiness. It is observed that diagonal path is the most important factor to decide yarn hairiness over all counts of yarns.