Method for preparing PET/PTT parallel complex filament with high self-crimpiness

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United States of America

PATENT NO 12000065
SERIAL NO

17603578

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Abstract

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The present invention discloses a method for preparing a PET/PTT parallel complex filament with high self-crimpiness, wherein PET and PTT are sliced, dried and crystallized, and then fused separately and subjected to extrusion molding through a parallel-type spinneret plate; oil is applied after cooling; then level 1-3 drafting and heat setting treatment are adopted; and during drafting, a total drafting rate is controlled to be 3 to 3.5, wherein the level-1 drafting rate is 2.8 to 3.0 at a temperature controlled to be 75 to 80° C., according to the method for preparing the PET/PTT parallel complex filament with high self-crimpiness, methods like multi-level drafting for increasing the drafting rate are adopted, and the effects of improving the fiber strength, moderately lowering the breaking elongation, and greatly improving the self-crimpiness are achieved.

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Patent Owner(s)

Patent OwnerAddress
TONGKUN GROUP CO LTDBUILDING 12 NO 1 DESHENG ROAD ZHOUQUAN TOWN TONGXIANG CITY JIAXING CITY ZHEJIANG PROVINCE JIAXING CITY ZHEJIANG PROVINCE 314513

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Chen, Wenxing Zhejiang, CN 73 349
Lin, Xueyan Zhejiang, CN 1 0
Liu, Shaobo Zhejiang, CN 25 197
Sun, Yanlin Zhejiang, CN 11 10
Wang, Xiuhua Zhejiang, CN 2 0
Xiao, Shunli Zhejiang, CN 1 0
Zhang, Xuzhen Zhejiang, CN 1 0

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