分析了T30S，Z30S两种切片及其纺丝拉伸等工艺对粗旦丙纶长丝不匀率的影响。
The effects of T30S and Z30S chips, spinning process and drawing process on yarn irregularity of coarse denier PP filament were analyzed.
纺丝过程中纤维皮层结构受到更大的拉伸取向作用，并在纤维表面出现一定游离原纤化结构。
A certain degree of free fibrillar structure was observed on the fiber surface due to the sheath structure of the fiber subjected to the greater drawing and orientation.
结果表明：随着磁粉含量的增加，磁性纤维的纺丝性能、拉伸性能、热性能下降。
The result showed that the spinning performance, drawing property and thermal property all decreased with the increase of magnetic particle content.
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