摘要
以特性黏数0.598 d L/g的高亲水聚酯切片为原料,采用双C型喷丝板生产高亲水中空涤纶短纤维,探讨了生产工艺条件对产品质量的影响。结果表明:控制高亲水聚酯切片的含水率小于30μg/g,组件初始压力9.5~11.0 MPa,纺丝温度276~282℃,环吹风温度23~25℃、速度1.0~1.1 m/s,拉伸槽温度58~63℃,紧张热定型温度140~150℃,总拉伸倍数2.20~2.25等工艺条件,纺丝过程稳定,后加工顺利;上述工艺条件下,生产的2.53 dtex高亲水中空涤纶短纤维产品质量达到预期效果,断裂强度2.23 c N/dtex,断裂伸长率22.5%,回潮率1.17%,中空度大于等于20%。
A high-hydrophilicity hollow polyester staple fiber was prepared from a high-hydrophilicity polyester chip with the in- trinsic viscosity of 0.598 dL/g by using a double C-shaped spinneret. The effect of process conditions on the product quality was discussed. The results showed that the spinning process was stable and the post-processing process was smooth under the condi- tions as followed ： water content of high-hydrophilicity polyester chip below 30 μg/g, initial pressure of spin pack 9.5 - 11.0 MPa, spinning temperature 276 -282 ℃, cross air blow temperature 23 -25℃ and speed 1.0 - 1.1 m/s, drawing temperature 58 - 63 ℃, heat setting temperature 140 - 150 ℃ under tension, total draw ratio 2.20 - 2.25 ; the produced 2.53 dtex high-hy- drophilicity hollow polyester staple fiber was of the quality satisfying the desired level with the breaking strength of 2.23 eN/dtex, elongation at break 22.5% , moisture regain 1.17% and hollowness not less than 20% under the above process conditions.
出处
《合成纤维工业》
CAS
2017年第2期59-62,共4页
China Synthetic Fiber Industry
关键词
聚对苯二甲酸乙二醇酯纤维
短纤维
高亲水纤维
中空纤维
生产工艺
polyethylene terephthalate fiber
staple fiber
high-hydrophilicity fiber
hollow fiber
production process
