Comparison of Properties of Polyester/ Viscose & Cotton Knitted Fabrics

Asian Resonance (P: ISSN No. 0976-8602 RNI No.UPENG/2012/42622 VOL.-7, ISSUE-1, January-2018 E: ISSN No. 2349-9443)

Abstract


 Rajiv Kumar

 Associate Professor, Deptt.of Textile Technology, M.L.V. Textile & Engineering College, Bhilwara, Rajasthan, India.

Due to limited availability and higher cost of cotton fibre, polyester/ viscose knitted fabrics are increasingly used these days. The aim of the paper is to compare the properties of 65/35 Polyester-Viscose single jersey knitted fabric with that of 100% Cotton single jersey knitted fabric having same particulars. It was found that bursting strength of P/V knitted fabric is greater than cotton fabric, due to higher elongation at break values of P/V yarn. Abrasion resistance of P/V fabric was also greater than that of cotton fabric. The air permeability of cotton fabric is slightly less than P/V fabric due to bigger diameter and higher value of hairiness in case of cotton yarn. Moisture regain of cotton fabric is higher than P/V fabric. The thermal resistance of cotton fabric is found to be greater than P/V fabric due to higher values of hairiness and yarn diameter in case of cotton yarn. The courses/cm of cotton fabric is slightly greater than P/V fabric whereas wales/cm of both the fabrics is almost same. The stitch length of cotton knitted fabric is slightly less than P/V fabric of equivalent construction. This is due to greater flexural rigidity of P/V yarn than cotton yarn. A yarn having more flexural rigidity or stiffer yarn is supposed to follow a longer path, resulting in higher value of loop length. It will also lead to slight increase in the height of the loop. It implies that slightly less number of courses may be accommodated in the same unit space. The stitch density of cotton fabric is higher than P/V fabric, which is due to higher value of courses/cm in case of cotton fabric. The slightly higher value of tightness factor for cotton fabric is due to lower value of stitch length for this fabric. Thickness of cotton fabric is greater than P/V fabric. It is a combined effect of greater value of yarn diameter and hairiness for cotton yarn. The skewness in P/V fabric is more than cotton fabric. The snarling tendency of the P/V yarn is major cause of skewness of knitted fabric. 

for full paper please visit below link :

http://www.socialresearchfoundation.com/upoadreserchpapers/1/196/1907100706191st%20rajiv%20kumar.pdf


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