Discussion on one-step production process of 131 dtex/108 f 16-end ITY
131 dtex/108 f 16-end polyester/polyester composite fibers(ITY)were produced by spinning-drawing-laminating-interlacing one-step process.The effects of spinning pack pressure,quenching pressure,spinning speed,heat setting temperature and oiling method on production conditions and ITY product quality were mainly explored.The results showed that the production was stable and the main product indicators met the quality control requirements when ITY was produced via one-step process by modifying the existing WINGS-FDY equipment and adjusting the production process;the production process was optimized as fol-lowed:spinning pack pressure of 17 MPa for pre-oriented yarn(POY)component and 15 MPa for fully drawn yarn(FDY)com-ponent,circular air blow pressure of 25 Pa,spinning speed of 3 800 m/min,heat setting temperature of 115℃,oiling POY component at spinning stage and FDY component at winding stage,POY oil content ratio of 60%and FDY oil content ratio of 40%in ITY;and the superior quality rate of 131 dtex/108 f 16-end ITY produced reached 98.18%,the fiber possessed a break-ing strength of 2.7 cN/dtex,elongation at break of 135.2%,coefficient of variation of yarn unevenness of 0.96%,oil content of 0.8%and dyeing uniformity up to 5.0 level.
polyethylene terephthalate fibercomposite fiberone-step processproduction process
万方数据
维普
