The structure and properties of flat section and circular polyester filament were studied through measuring birefringence, sonic modulus and work coefficient ect.

对扁平形聚酯纤维和圆形聚酯纤维的结构和性能进行了研究。

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In this article, the design of "-"spinneret of Polyester FDY was introduced. The effect of spinning temperature , spinning speed and quench process to the flat target of the filament were discussed.

介绍了涤纶FDY扁平丝“-”型喷丝板的工艺设计，主要讨论了纺丝温度、纺丝速度、侧吹风等工艺对纤维扁平度指标影响。

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