| 55 dtex/144 f涤纶FDY生产工艺探讨 |
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| 引用本文： | 李建武,王朝生,赵瑞辉,王华平,雷鸣,丁建中.55 dtex/144 f涤纶FDY生产工艺探讨[J].合成纤维工业,2009,32(4). |
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| 作者姓名： | 李建武 王朝生 赵瑞辉 王华平 雷鸣 丁建中 |
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| 作者单位： | 1. 东华大学材料学院纤维材料改性国家重点实验室,上海,201620
2. 江苏恒力化纤有限公司,江苏,215226 |
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| 摘 要： | 采用特性粘数为0.67 dL/g大有光聚对苯二甲酸乙二酯(PET)切片生产55 dtex/144 f超细旦涤纶FDY,探讨了其生产工艺。结果表明:通过浆料配置管线上安装质量流量计,配料时添加二甘醇(DEG),控制熔体中最终DEG质量分数为1.3%;采用喷丝孔长径比为4,菱形排列,孔密度不超过3 f/cm2的喷丝板,冷却装置中增加长度为50~60 cm的环形缓冷管,生产的涤纶FDY条干不匀率为1.9%,产品染色均匀。
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| 关 键 词： | 聚对苯二甲酸乙二酯纤维 超细旦纤维 全拉伸丝 染色性 |
Production process of 55 dtex/144 f PET FDY |
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| Abstract: | A superfine polyethylene terephthalate(PET) FDY of 55 dtex/144 f was prepared from bright PET chips with the intrinsic viscosity of 0.67 dL/g.The production process was discussed.The results showed that the PET FDY with the yarn unevenness of 1.9% can be obtained by installing slurry distribution pipeline with a mass flow meter,adding diethylene glycol(DEG) into the feedstocks,controlling 1.3% DEG in the final melt by mass fraction,applying the spinneret with the length-width ratio of 4 and diamond-arranged orifices with the density not higher than 3 f/cm2 and introducing a circular annealing pipe with the length of 50-60 cm into the cooling device. |
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| Keywords: | polyethylene terephthalate fiber superfine fiber fully-drawn yarn dyeability |
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