Mechanical and structural properties of mercerized cotton yarns, bio-scoured with pectinases

Abstract

Enzymatic scouring with alkaline and acid pectinases was done on raw and mercerized plied ring worsted cotton yarns. In comparison to alkaline scouring, this was also done. After mercerizing and after scouring, yarns were dried at 20 °C and 80 °C. On scoured and mercerized-scoured yarns that were differently dried, tensile strength and elongation, yarn diameter, packing coefficient, abrasion resistance, and work of rupture, modulus and luster were measured. Analysis of variance for the different way of scouring, and temperature of drying was evaluated, as well as the correlations between analyzed properties of the yarns. The way of scouring has significant influence on yarn diameter and packing coefficient, work of rupture, abrasion resistance and luster, while the temperature of drying has influence on elongation, dynamic sonic modulus and luster. Linear positive correlations were found between abrasion resistance-work of rupture and dynamic sonic modulus-packing coefficient while negative correlations were found between dynamic sonic modulus-elongation, dynamic sonic modulus-yarn diameter, and dynamic sonic moduluswork of rupture, dynamic sonic modulus-abrasion resistance and luster-elongation.