Experimental analysis on the effect of ring and rotor spun yarns for comfort characteristics of weft knitted fabric structures

Abstract

This research study experimentally analyzed the effect of ring and rotor yarns which are 100% cotton spun yarn with 30s Ne count on the physical and comfort characteristics of single jersey, rib, and interlock knitted fabrics. The physical characteristics such as fabric Thickness, Tightness factor, Bursting strength, Abrasion resistance, and Pilling behavior were studied according to the ASTM Standard and statistically analyzed using Minitab software with ANOVA analysis. The Comfort characteristics were Thermal Insulation behavior (TIV), Water Vapor Permeability, and Air permeability; they were experimentally studied and reported. The results revealed that rotor spun yarn knitted fabrics demonstrated higher Thermal insulation behavior in the knitted structures when compared to ring spun yarn knitted fabrics. Ring spun yarn has better Abrasion resistance than rotor spun yarn, but the air permeability of the knitted fabric made from rotor spun yarn has better air permeability than ring spun yarn. The low stress mechanical properties are shear and compression behavior of ring and rotor spun yarn knitted fabrics were also critically analyzed. The results show that in a few cases the differences between regular fabric properties and the rotor and ring yarn fabric properties are quite significant, while marginal in other cases. However, the surface roughness values showed some interesting features of the knitted fabric structures.