Characteristics of acrylic-cotton yarns produced on ring and rotor spinning systems

Acrylic-cotton rotor-spun yarns are substantially weaker, more even and extensible, and have lower abrasion resistance than the equivalent ring-spun yarns. The difference in tenacity of ring- and rotor-spun yarns is much less for coarse yarns. An increase in twist factor significantly increases the abrasion resistance of rotor yarns. However, with 70:30 acrylic-cotton ring yarns, the abrasion resistance does not show any change with increasing twist factor. Acrylic content in the fibre mix should be more than 50% for improvement in yam characteristics.