Comparison and Analysis of Rotor-Spun Composite Yarn and Sirofil Yarn

As a result of various spinning types, different kinds of yarns have different structures and performances. In this research we developed a composite yarn spinning system that produces different kinds of composite yarns containing filament on a modified rotor spinning frame. Rotor-spun composite yarn and sirofil were produced by a modified rotor spinning machine and a modified ring spinning machine, respectively. Their longitudinal views, abrasion resistance, hairiness and breaking strength were tested and analysed. The conclusion obtained was that, compared with sirofil, rotor-spun composite yarn has a smoother surface, less hairiness, higher abrasion resistance, lower breaking strength and better evenness.