EFFECTS OF YARN SPINNING SYSTEMS AND TWIST DIRECTION ON SOME PROPERTIES OF VISCOSE INTERLOCK FABRICS

摘要

In this study,it was intended to investigate the effects of yarn spinning systems as well as yarn twist direction on some comfort and spirality performance properties of the fabrics.For this aim,interlock knitted fabrics made of 100% viscose yarns were produced with different spinning systems namely,ring,compact and siro at two twist directions; S and Z.The results indicate that the fabrics made of compact yarn possessed high water vapor and high air permeability values,but lesser vertical wicking values than ring yarn fabrics.However,both of the permeability values of the compact yarn fabrics markedly reduced when yarn twist direction was S.Generally,irrespective of yarn twist direction,the siro yarn fabrics exhibited better permeability but lesser wickability values as compared to ring yarn fabrics.Ring yarn fabrics displayed relatively highest wickability values and spirality percentages as compared to made from siro and compact yarns.In addition,samples produced from Z-twist yarn had higher air permeability values as well as water vapor permeability values but their vertical wicking values and spirality percentages were lesser than that of S-twisted ones.To sum up,it can be inferred that the spinning system has a profound in?uence on structural parameters of spun yarns.