The Influence of a Rotary Compact Groove Cylinder on the Properties of Ring Spun Yarn

Abstract

ABSTRACT Hairiness is a key index for yarn quality as it has a critically negative influence on weaving process. Yarns with less hairiness are highly demanded in textile industry. This work introduced an innovative way to mainly reduce the hairiness of ring spun yarns. Rotary compact groove cylinders (CGC) have been installed in the front of spinning nip to minimize the spinning triangle. Theoretical analysis has been carried out to reveal the mechanics of reducing hairiness. Two yarn types spun using conventional ring spinning and Siro spinning both with CGC device have also been compared to investigate this spinning method on the general application of different yarn types. Experimental results indicate that the CGC device can capture and control float fibers in the spinning triangle, pure cotton, and flax/cotton blend yarn were both improved with less hairiness (with reduction ratio of 3 mm hairs at 40% and 38%, respectively). The strength of CGC pure cotton yarn was improved, while the unevenness of CGC flax/cotton blend yarn were slightly deteriorated compared with original yarn. This method is easy to realize and requires no extra energy, which has great potential to be applied in the industrial production of ring spun yarns with better properties.