常压阳离子可染高收缩涤纶毛条生产工艺的探讨  

Production process of easy cationic dyeable high-shrinkage polyester top

作　　者：郑贤芳 冷雷田 

机构地区：[1]镇江南山化纤有限公司,江苏镇江212003

出　　处：《合成纤维工业》2013年第6期55-58,共4页China Synthetic Fiber Industry

摘　　要：在普通涤纶毛条装置上，采用改性聚酯切片纺丝，直接制条生产常压阳离子可染高收缩涤纶毛条，探讨了其生产工艺条件。结果表明：采用特性黏数0．556dL／g的常压阳离子可染高收缩改性聚酯切片纺丝，纺丝温度275～280℃，65～67oC热水浴拉伸，拉伸倍数2．9～3．1，采取45～50℃烘干而不经热定型，控制长丝束含油率为0．25％；直接制条时控制制条开松区倍率为2．2，长度离散系数20％-25％，条重17～19g/m，制条速度240～250m／min；生产的3．33dtex×88mm常压阳离子可染高收缩涤纶毛条沸水收缩率达48％，其质量指标达到普通涤纶毛条一等品的要求。Easy cationic dyeable high-shrinkage polyester top was directly produced after the spinning of modified polyester chip on a traditional polyester top machine. The process conditions were discussed. The results showed that the easy cationic dyeable high-shrinkage polyester top of 3.33 dtex × 88 mm can be produced with the boiling water shrinkage of 48% and quality index satisfying the standard of regular one-grade polyester top under the conditions as followed： easy cationic dyeable high-shrinkage modified polyester chip with the intrinsic viscosity of 0. 556 dL/g, spinning temperature 275 - 280 ℃, 65 - 67 ℃ hot water bath stretch, stretch ratio 2.9 - 3.1, drying at 45 - 50 ℃ without heat setting, oil content of filament tow 0.25%, top opening area rate 2.2, length dispersion coefficient 20% -25% , top mass 17 - 19 g/m, top making speed 240 -250 m/min.

关 键 词：直接制条 常压阳离子可染 高收缩 涤纶毛条 长度离散系数 

分 类 号：TQ342.21[化学工程—化纤工业]