通过改善聚丙烯熔体的流变性能、调整拉伸和变形工艺、控制卷绕张力和油剂加入量，可有效地提高丙纶bcf的卷曲性能。
By improving PP melt rheological properties, adjusting draw-texturing process, controlling winding tension and oil content, the crimping property of PP - BCF yarn can be improved effectively.
综述了三维卷曲纤维的自卷曲结构原理和主要生产工艺，以及三维卷曲纤维的性能与应用。
The structural principle and production and application of three dimensional self crimp fibers were analysed and summarised.
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