Title:
PARALLEL SELF-CRIMPED ELASTIC FIBER AND PREPARATION METHOD THEREFOR
Document Type and Number:
WIPO Patent Application WO/2021/128754
Kind Code:
A1
Abstract:
Disclosed are a parallel self-crimped elastic fiber and a preparation method therefor. The parallel self-crimped elastic fiber is prepared by distributing compatible or partially compatible first and second fiber-forming polymer (P1 and P2) melts, and extruding same from spinneret orifices m and n on the same spinneret plate, wherein the P1 and P2 melts flow to the spinneret orifice m via distribution holes A and B, and flow to the spinneret orifice n via distribution holes C and D, wherein the distribution holes A, B, C or D are cylindrical holes of equal height, the diameter ratio of A to B is 1.10-1.20 : 1, the diameter ratio of C to D is 1 : 1.10-1.20, and the difference in the apparent viscosity of the P1 and P2 melts does not exceed 5% at the inlet of A-D. The prepared fiber is composed of P2/P1 parallel composite monofilaments in a mass ratio of P1 to P2 of 3 : 2-2 : 1, and P2/P1 parallel composite monofilaments in a mass ratio of P1 to P2 of 2 : 3-1 : 2. The present invention solves the problem of "stripe unevenness" of parallel composite fibers in knitted fabrics.
Inventors:
FAN HONGWEI (CN)
WANG LILI (CN)
TANG FANGMING (CN)
KANG AIQI (CN)
WANG SHANSHUI (CN)
WANG LILI (CN)
TANG FANGMING (CN)
KANG AIQI (CN)
WANG SHANSHUI (CN)
Application Number:
PCT/CN2020/095554
Publication Date:
July 01, 2021
Filing Date:
June 11, 2020
Export Citation:
Assignee:
JIANGSU HENGLI CHEMICAL FIBRE CO LTD (CN)
International Classes:
D01D5/32; D01F8/14; D01F8/12; D01F8/16
Foreign References:
| CN111101238A | 2020-05-05 | |||
| CN1737224A | 2006-02-22 | |||
| CN107794581A | 2018-03-13 | |||
| CN1276444A | 2000-12-13 | |||
| CN209652480U | 2019-11-19 | |||
| US3458390A | 1969-07-29 |
Attorney, Agent or Firm:
TONGSHE INTELLECTUAL PROPERTY AGENCY (CN)
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