PTT/PET并列复合卷曲纤维生产工艺探讨  

Discussion on the Production Process of Side-By-Side PTT/PET Composite Crimp Fiber

作　　者：董海良 杨新华 DONG Hai-liang;YANG Xin-hua(Zhejiang Hengyi Petrochemical Research Institute Co.,Ltd.,Hangzhou 310000,Zhejiang,China;State Key Laboratory for Modification of Chemical Fibers and Polymer Materials,College of MaterialsScience and Engineering,Donghua University,Shanghai 201620 China)

机构地区：[1]浙江恒逸石化研究院有限公司,浙江杭州310000 [2]东华大学材料科学与工程学院纤维材料改性国家重点实验室,上海201620

出　　处：《合成纤维》2022年第6期14-16,19,共4页Synthetic Fiber in China

基　　金：萧山区领军型创新创业团队项目(2020503)。

摘　　要：探讨了83 dtex/36 f PTT/PET并列复合卷曲纤维的生产工艺,结果表明:采用特殊设计的外并列型纺丝组件,喷丝孔长径比大于3;选用特性黏度为1.25 dL/g的PTT切片和特性黏度为0.48 dL/g的PET切片,PTT与PET质量比为50/50;PET纺丝温度为265~275℃,PTT纺丝温度为245~265℃,拉伸倍数为2.6~3.3,热定形温度为130~170℃,卷绕角控制在5.0°~8.0°,卷绕张力为0.08~0.16 cN/dtex,卷绕速度为3 600~4 200 m/min,可获得性能优良的PTT/PET并列复合卷曲纤维,并实现工业化生产。The production process of 83 dtex/36 f side-by-side PTT/PET composite crimp fiber wasdiscussed.The results show that when the specially designed external parallel spinning pack is used,theratio of length to diameter of spinneret hole is greater than 3,PTT chips with 1.25 d L/g intrinsic viscosityand PET chips with 0.48 d L/g intrinsic viscosity are selected,and the mass ratio of PTT to PET is 50/50,thespinning temperature of PET is 265~275 ℃,the spinning temperature of PTT is 245~265 ℃,the drawingratio is 2.6~3.3,the heat setting temperature is 130~170 ℃,the winding angle is controlled at 5.0°~8.0°,thewinding tension is 0.08~0.16 c N/dtex,the winding speed is 3 600~4 200 m/min,the side-by-side PTT/PETcomposite crimp fiber with excellent performance can be obtained and industrial production can be realized.

关 键 词：PTT PET 并列复合纤维 纺丝工艺 

分 类 号：TQ342.29[化学工程—化纤工业]