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Title:
MACHINING PROCESS OF PERMANENT RESILIENT-TYPE FALSE TWIST FILAMENT
Document Type and Number:
WIPO Patent Application WO/2021/097669
Kind Code:
A1
Abstract:
A machining process of a permanent resilient-type false twist filament, which relates to the field of false twist filament machining. The machining process of a permanent resilient-type false twist filament comprises the following steps: S1, adding polybutylene terephthalate and a polyethylene terephthalate compound to a raw material so as to form an SFD composite product; and S2, performing a secondary drawing process on the SFD composite product in step S1, and using, when carrying out the drawing process, a high-pressure type low-temperature coupling as a heat-conducting liquid in a temperature control component of a device. The SFD has the flexibility of polybutylene terephthalate, excellent dyeability and the high modulus of the polyethylene terephthalate, excellent resilience, a non-deformable memory, and broad market prospects. For the bluff-type degradation feature of polybutylene terephthalate, high-pressure type low-temperature coupling is used to ensure uniform temperature, improving a heat-conducting liquid in a temperature control component structure, ensuring no difference in a composite melt flow, and ensuring the drawing and forming effect.

Inventors:
SHI LIANMING (CN)
Application Number:
PCT/CN2019/119456
Publication Date:
May 27, 2021
Filing Date:
November 19, 2019
Export Citation:
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Assignee:
JIANGSU SHENGHENG HUAQIAN CO LTD (CN)
International Classes:
D02G3/38; D01F6/84; D01F8/14; D02G1/02
Domestic Patent References:
WO2002074111A12002-09-26
Foreign References:
CN101619504A2010-01-06
CN102051706A2011-05-11
CN102301045A2011-12-28
CN101649517A2010-02-17
CN109176963A2019-01-11
Attorney, Agent or Firm:
SUZHOU GUOCHENG PATENT AGENCY CO., LTD (CN)
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