Title:
METHOD FOR PREPARING HIGH-STRENGTH FLAME-RETARDANT DACRON INDUSTRIAL YARN
Document Type and Number:
WIPO Patent Application WO/2020/238687
Kind Code:
A1
Abstract:
The present invention belongs to the technical field of polymeric fiber production, and particularly relates to a method for preparing a high-strength flame-retardant dacron industrial yarn. The method involves selecting a polymeric phosphorus flame retardant as a component A, mixing component A with common PET chips, such that the mass ratio of component A in the raw material after the mixing is 5-10%, subjecting the mixed materials to solid phase tackifying to achieve an intrinsic viscosity of 1.0-1.20 dl/g, and spinning the mixed material using controlled temperature conditions, winding speeds and the like, so as to obtain the high-strength flame-retardant dacron industrial yarn. The industrial yarn produced has excellent friction resistance and cohesion, can greatly reduce broken filaments during elongation and post-weaving processes, has a high strength, is halogen-free and environmentally-friendly, has good flame-retardant performance, and low filament breakage when spinning.
Inventors:
GE JUNMIN (CN)
GU FENG (CN)
GU FENG (CN)
Application Number:
PCT/CN2020/090920
Publication Date:
December 03, 2020
Filing Date:
May 18, 2020
Export Citation:
Assignee:
ZHEJIANG HAILIDE NEW MAT CO LTD (CN)
International Classes:
D01F6/92; D01D5/08; D01D5/096; D01D5/12; D01F1/07; D01F11/08
Foreign References:
| CN110158188A | 2019-08-23 | |||
| CN110158190A | 2019-08-23 | |||
| CN103060942A | 2013-04-24 | |||
| CN102675618A | 2012-09-19 | |||
| CN104603176A | 2015-05-06 | |||
| CN102912640A | 2013-02-06 | |||
| CN102978736A | 2013-03-20 | |||
| CN1306020A | 2001-08-01 | |||
| JP2003129368A | 2003-05-08 | |||
| CN102400342A | 2012-04-04 |
Attorney, Agent or Firm:
ZHEJIANG INPRO LAW FIRM (CN)
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