Study on cotton polyester/PBT/PET core-spun yarn process
Presently,spandex is the primary fiber used in the majority of core-spun yarns available on the market;nevertheless,spandex fibers are weak and easily yellowed.Cotton polyester/PBT/PET cored yarn was made using PBT/PET composite filament as the core yarn and cotton/polyester(40/60)blended roving yarn as the covering yarn.Based on the spinning of a ring,the impact of predraft tension and twist coefficient of e-lastic core-spun yarn on the quality of core-spun yarn is investigated.The findings demonstrate that the core spun yarn has good strength and elongation with a fracture strength of 20.8 cN/tex when the twist coefficient is 350 and the pre draft tension is 1.90.The yarn's CV value is 12.09％when the twist coefficient is 280 and the pre-stretc-hing tension is 1.90.After 1,3,and 5 cycles,the elastic recovery performance rate is higher at a constant elonga-tion of 5％.
PBT/PETcore yarnelastic response rateyarn barstrength and elongation
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