A comparative study on conventional carded and compact combed yarn on spirality and bursting strength of various knitted fabrics

Abstract

This thesis presents an analysis and comparative study between conventional card and compact combed yarn on the properties of knitted fabrics. 30 Ne Card and 30 Ne compact Combed yarn have been used in this thesis which were produced from same lot. 6 types of fabrics (single jersey, single jersey elastane, single lacoste, double lacoste, rib and interlock) are knitted from both card and compact Combed yarn. Then the spirality and bursting strength are tested on all grey fabrics. 12 (6 Carded fabrics and 6 Combed fabrics) types of fabric are dyed together in a dyeing machine and finished in same times with same finishing parameters. After finish, the spirality, bursting strength are tested. From the test results it is revealed that the compact Combed yarn offers the most effective advantages over the conventional Card yarns. The overall results showed that the knitted fabrics produced from compact Combed yarn have lower grey spirality (single jersey=9, Lycra signle jersey= 4.2, single lacoste= 4, double lacoste 3.8, 1X1 rib= 3.5 and interlock 3.9) and finish spirality (single jersey=3.8, Lycra signle jersey= 2.7, single lacoste= 3.6, double lacoste= 3.5, 1X1 rib= 3 and interlock 3.1) with higher grey bursting strength (single jersey=95, Lycra single jersey= 69, single lacoste= 97, double lacoste= 89, 1X1 rib= 106 and interlock= 152) and finish bursting (single jersey= 76, Lycra signle jersey= 63, single lacoste= 78, double lacoste 74, 1X1 rib= 92 and interlock= 141) compare with knitted fabric produced from Card yarns and these are the key achievement of this research work. It was also accomplished that presence of lycra shows lower bursting strength values for both carded and compact combed yar