Study on Spirality and Shrinkage of Knitted Fabric

Abstract

The most common problems for knitted fabric are shrinkage and spirality due to their loop formation. In circular knitted fabrics spirality has an influence on the aesthetic and functional performance. The process in which a fabric becomes smaller then its original size due to washing and dyeing is known as shrinkage. This study determined the causes and remedies of shrinkage and spirality. And the main difference between tumble and line drying. The more responsible for shrinkage was the tumble drying contrary to line drying .The best result in shrinkage and spirality was shown by the full feeder lycra single jersey but on the other hand the worst result was shown by the double pique due to more tuck loop in its structure. So the line drying was the best for using the garments with assured quality and dimensional stability. Shrinkage is 6%. Ordinarily shrinkage is worthy under 5%. In any case, it tends to be change if there should arise an occurrence of purchaser necessity. For measuring the shrinkage and spirality firstly we did the ISO-6330 washing after that used ISO-5077 for shrinkage and then ISO-16322-2 for spirility. And these are the international standard of these measuring system. From our project work we can conclude that, in case of higher count, combed yarn, lower GSM, 100% cotton yarn used, single jersey structure cause the higher spirality in the weft knitted fabrics