熔体直纺278 dtex/228 f细旦有光扁平涤纶POY生产工艺探讨

Discussion on production technology of melt direct spinning 278 dtex/228 f fine denier bright flat polyester POY

探讨聚酯熔体直纺278dtex/228f细旦有光扁平涤纶POY生产工艺技术,研究表明:在纺制的细旦有光扁平涤纶丝规格为278 dtex/228 f时,PET熔体温度为290~292℃,纺丝速度2500~2550 m/min,冷却风温为18~20℃,环吹风压为15~28 Pa时,其纺制的细旦有光扁平涤纶丝具有良好的生产可纺性以及后加工性能,该细旦有光扁平涤纶丝断裂伸长率为116%左右,条干CV值0.9%。

The production technology of polyester melt direct spinning 278 dtex/228 f fine denier bright flat polyester POY is discussed.The research shows that when the specification of the spun fine denier bright flat polyester yarn is 278 dtex/228 f,the PET melt temperature is 290~292℃,the spinning speed is 2500~2550 m/min,the cooling air temperature is 18~20℃,and the polyester melt temperature is 290~292℃.The fine denier bright flat polyester yarn has good spinnability and post-processing performance.The elongation at break of the fine denier bright flat polyester yarn is about 116%,and the evenness cv value is 0.9%.