PREPARATION METHOD FOR FLAME-RETARDANT DRIP RESISTANT POLYESTER-NYLON COMPOSITE FIBER

WIPO Patent Application WO/2023/130512

A1

A preparation method for a flame-retardant drip resistant polyester-nylon composite fiber, belonging to the field of fiber preparation. The preparation method comprises the following steps: S1, uniformly mixing polyester chips, silicon resin, hydroxyphenoxyphosphinopropionic acid and antimony trioxide in a certain ratio, adding a mixture into a screw extruder for melted extrusion to obtain a polyester melt; S2, uniformly mixing nylon chips, tetramethylol acetylenediurea and 4-hydroxymethyl phosphonium sulfate in a certain ratio, adding a mixture into the screw extruder for melted extrusion to obtain a nylon melt; S3, adjusting a hole diameter of a spinneret hole on a spinneret plate in advance by means of an adjusting cylinder; and S4, conveying the polyester melt and the nylon melt into a spinning manifold to be mixed, spraying same by means of the spinneret hole on the spinneret plate, and cooling to obtain a flame-retardant drip resistant polyester-nylon composite fiber finished product with a required thickness.

QI DONGMING (CN)
LI JIAWEI (CN)
YAN XIAOFEI (CN)
LU HONGQING (CN)
JIANG LIMING (CN)
SUN JUAN (CN)
MA JIANHUA (CN)
ZHOU YONG (CN)

PCT/CN2022/072976

July 13, 2023

January 20, 2022

Click for automatic bibliography generation  

ZHEJIANG HAONENG TECH CO LTD (CN)

D01D5/08; D01D4/08; D01D5/20; D01F1/07; D01F8/12; D01F8/14

CN101503835A	2009-08-12
CN101353863A	2009-01-28
JP2005097819A	2005-04-14
CN210736963U	2020-06-12
CN113235170A	2021-08-10

ZHEJIANG ZHUANCHENG LAW FIRM (CN)

View/Download PDF      PDF Help

Previous Patent: METHOD FOR PREPARING EASY-TO-DYE BIO-BASED POLYESTER-NYLON COMPOSITE FIBER

Next Patent: BACKLIGHT MODULE AND DISPLAY PANEL