Porous ultra-soft ultra-fine denier polyester fiber and its preparation method

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United States of America

PATENT NO 10604621
APP PUB NO 20190185616A1
SERIAL NO

16322952

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Abstract

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A porous ultra-soft ultra-fine denier polyester fiber and preparation method. The modified polyester is spun with a porous spinneret to produce the porous ultra-soft ultra-fine denier polyester fiber, and the spinneret holes on the porous spinneret are arranged in an elliptical arrangement. The porous ultra-soft ultra-fine denier polyester fiber is obtained by metering, extruding, cooling, oiling and high-speed winding the modified polyester chips. The preparation method of modified polyester is as follows: terephthalic acid reacts with ethylene glycol to produce ethylene terephthalate. The modified polyester is obtained by the reaction of terephthalic acid with branched diol. The fiber of the invention has good properties and the deviation rate of fiber density. The deviation rate of fiber density is ≤0.5%, the CV value of breaking strength is ≤4.0%, the CV value of elongation at break is ≤8.0%, the CV value of yarn unevenness is ≤2.0%.

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Patent Owner(s)

Patent OwnerAddress
JIANGSU HENGLI CHEMICAL FIBRE CO LTDNO 1 HENGLI ROAD NANMA INDUSTRIAL ZONE SHENGZE TOWN WUJIANG DISTRICT SUZHOU CITY JIANGSU PROVINCE SUZHOU CITY JIANGSU PROVINCE 215226

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Ding, Zhujun Wujiang, CN 4 3
Fan, Hongwei Wujiang, CN 28 10
Niu, Zangzang Wujiang, CN 3 1
Sun, Xiaohua Wujiang, CN 9 49
Wang, Lili Wujiang, CN 226 1989
Wang, Shanshui Wujiang, CN 16 1

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