Cotton wrapped polyester core yams produced on a modified ring spinning frame were compared with yams spun from staple fiber blends. The yams contained ap proximately 70% cotton and 30% polyester. Yarns and fabrics made from both regular and high tenaeity polyesters were evaluated. Fabrics produced from the core yams were stronger and more durable than those of the staple blends, and they maintained their superiority in these properties through wet processing and resin .finishing. Other advantages of the core-yam fabrics included better cover and abrasion resistance.
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