Effect of roving linear density on the quality parameters of 16 Nec 100% cotton yarn

In this study the effect of roving linear density on the 16 Nec cotton yarn was studied. Hank roving plays an important role in ring spinning process. Heavier roving results in higher production however heavier roving mean higher draft on the subsequent ring spinning frame which could cause deterioration in the yarn quality. On the other hand lighter roving reduces the production hence increases the process cost. In this study roving with different linear densities were processed into the 16 Nec yarn. The uniformity index, IPI index and tensile properties were tested and analysed. Five rovings with linear density of 0.82 Nec, 0.87 Nec, 0.92 Nec, 0.97 Nec and 1.02 Nec were produced by keeping all the parameters same. 16 Nec yarns were produced by utilising these rovings the quality parameters were tested and analysed. The study showed that the reduction in the roving density positively influences the U % and IPI however there were no significant effects of decrease in roving density on yarn tensile properties.