Title:
METHOD FOR PREPARING EASY-TO-DYE BIO-BASED POLYESTER-NYLON COMPOSITE FIBER
Document Type and Number:
WIPO Patent Application WO/2023/130511
Kind Code:
A1
Abstract:
A method for preparing an easy-to-dye bio-based polyester-nylon composite fiber, relating to the field of fiber preparation. The method for preparing an easy-to-dye bio-based polyester-nylon composite fiber comprises the following steps: S1, mixing polyester chips, dimethyl isophthalate, glutaric acid, and polytrimethylene terephthalate in an appropriate ratio, and then adding to a screw extruder for melt extrusion, to obtain a melt A; S2, mixing nylon chips, nano silicon dioxide, and polytrimethylene terephthalate in an appropriate ratio, then adding to the screw extruder for melt extrusion, to obtain a melt B; S3, conveying the melt A and the melt B to a spinning box body for mixing, after mixing for a period of time, adding a blend and continuing mixing to obtain a mixed melt; S4, spraying out the mixed melt via spinning holes to form filaments, cooling, then placing the filaments in hot water for a period of time, and after gaps are formed on the surfaces or interiors of the filaments, taking out and drying the filaments, so as to obtain the easy-to-dye bio-based polyester-nylon composite fiber.
Inventors:
QI DONGMING (CN)
LI JIAWEI (CN)
YAN XIAOFEI (CN)
LU HONGQING (CN)
JIANG LIMING (CN)
SUN JUAN (CN)
MA JIANHUA (CN)
ZHOU YONG (CN)
LI JIAWEI (CN)
YAN XIAOFEI (CN)
LU HONGQING (CN)
JIANG LIMING (CN)
SUN JUAN (CN)
MA JIANHUA (CN)
ZHOU YONG (CN)
Application Number:
PCT/CN2022/072975
Publication Date:
July 13, 2023
Filing Date:
January 20, 2022
Export Citation:
Assignee:
ZHEJIANG HAONENG TECH CO LTD (CN)
International Classes:
D01F1/00; D01F8/12; D01F8/14
Domestic Patent References:
| WO2021053085A1 | 2021-03-25 |
Foreign References:
| JP2016055036A | 2016-04-21 | |||
| GB202016247D0 | 2020-11-25 | |||
| CN111676528A | 2020-09-18 | |||
| CN101343797A | 2009-01-14 | |||
| JP2004285520A | 2004-10-14 | |||
| CN106676672A | 2017-05-17 | |||
| CN106012054A | 2016-10-12 |
Attorney, Agent or Firm:
ZHEJIANG ZHUANCHENG LAW FIRM (CN)
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