Effect of Elastane Plating on Physical & Thermal Comfort Properties of Lyocell Single Jersey Knit Fabric with Different Loop Length

Abstract

Elastic weft knitted single jersey fabrics are produced by plating of elastane (elastomeric polyurethane) yarn with lyocell yarn in a circular knitting machine with positive feeder. This type of fabrics and their cloths have great response in the market as they have the tendency to re-gain their original size and shape due to physical extension by any part of human body. This research analyzed the effect of elastane plating on the physical and thermal comfort properties such as GSM, thickness, stitch density, air permeability, water vapor transmission rate, thermal conductivity and thermal resistivity of lyocell single jersey knitted fabrics by varying the loop length. The work revealed that the physical properties like stitch density, thickness and GSM increased with increase in elastane content and decrease in increasing of loop length. The air permeability, water vapor transmission rate and thermal resistivity of the fabrics decreased with increasing of elastane plating and increased with increasing of loop length. The thermal conductivity values of the fabrics are not much significant at 95% significance level.

Keywords

• lyocell
• elastane
• plating
• stitch density
• thermal resistance
• thermal conductivity