Thesis Details

Thesis Title: A comparison of the performance of knit fabrics made from compact and ring spun yarns
Thesis Author: Caren Hull
Abstract: Ring spinning remains the technology to which all spinning technologies are compared. When ring spun yams are produced, twist is inserted into a ribbon of fibers that exit the nip ofthe front roll of the drafting mechanism. A spinning triangle develops immediately after this nip. Some fibers are not fully integrated into the ring yam structure because of this spinning triangle, which leads to increased hairiness. Compact spinning is a new development in ring spinning technology. The compacting device used with compact spinning nearly eliminates the traditional spinning triangle that exists on conventional ring spinning machines in order to reduce the hairiness of the spun yam and improve yam strength. Compact spun yams have many purported advantages over conventional ring spun yams, including reduced hairiness, increased strength and elongation, better yam uniformity, higher productivity, and better raw material usage. The purpose of this research was to provide the textile industry with information about the performance of knit fabrics made from ring and compact spun yams. Fabrics composed of 100% cotton, 100% polyester, and 100% Multiple Staple Length (MSL) polyester yams were produced. Results from this research indicate that 3.0 TM compact yarns can replace 3.8 TM ring yams without any deterioration in fabric quality with regards to bursting strength, air permeability (cover), pilling resistance, and abrasion resistance. This research also indicates that the performance of MSL polyester fabrics is comparable to or better than cotton fabrics with regard to bursting strength, hand, and abrasion resistance. MSL polyester fabrics had lower pilling resistance and less cover than cotton fabrics.