Title:
POLYAMIDE 56 FIBRE WITH LOW BOILING WATER SHRINKAGE RATE, PREPARATION METHOD THEREFOR, AND APPLICATION THEREOF
Document Type and Number:
WIPO Patent Application WO/2021/031529
Kind Code:
A1
Abstract:
The present invention relates to the technical field of polyamide materials, and provides polyamide 56 pre-oriented yarn and textured yarn with a low boiling water shrinkage rate, a preparation method therefor, and an application thereof. The raw materials for the production of the polyamide 56 fibre comprise 1,5-pentanediamine and adipic acid or polyamide resin 56 obtained by polymerising 1,5-pentanediamine and adipic acid monomers; the boiling water shrinkage rate of the polyamide 56 fibre is below 9%, and the polyamide 56 fibre contains polyamide 56 pre-oriented yarn with a low boiling water shrinkage rate and polyamide 56 textured yarn with a low boiling water shrinkage rate. The polyamide 56 fibre has good mechanical properties, uniform dyeing properties, and dimensional stability, and the preparation method for the polyamide 56 fibre does not require the modification of existing polyamide fibre texturing devices, reducing production costs.
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Inventors:
SUN CHAOXU (CN)
LIU XIUCAI (CN)
LIU XIUCAI (CN)
Application Number:
PCT/CN2020/072235
Publication Date:
February 25, 2021
Filing Date:
January 15, 2020
Export Citation:
Assignee:
CATHAY BIOTECH INC (CN)
CIBT AMERICA INC (US)
CIBT AMERICA INC (US)
International Classes:
D01F6/60; C08L77/06; D01F6/90; C08G69/28; D01F1/10
Foreign References:
| CN106884215A | 2017-06-23 | |||
| CN105330850A | 2016-02-17 | |||
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| CN106835329A | 2017-06-13 | |||
| CN106868624A | 2017-06-20 | |||
| EP0476583A2 | 1992-03-25 | |||
| CN106835329A | 2017-06-13 | |||
| CN106868624A | 2017-06-20 | |||
| CN106868623A | 2017-06-20 | |||
| CN100489168C | 2009-05-20 | |||
| CN108503826A | 2018-09-07 | |||
| CN108503824A | 2018-09-07 | |||
| JP4165106B2 | 2008-10-15 |
Attorney, Agent or Firm:
NTD UNIVATION INTELLECTUAL PROPERTY AGENCY LTD (CN)
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