公开(公告)号：US10982044B2

公开(公告)日：2021-04-20

申请号：US16640737

申请日：2018-07-27

Applicant: JIANGSU HENGLI CHEMICAL FIBRE CO., LTD.

Inventor： Hongwei Fan ,  Yiwei Shao ,  Lixin Yin ,  Fangming Tang

IPC: C08G63/80 ,  C08G63/183 ,  D01D5/096 ,  D01F6/84 ,  D01F11/08

Abstract: A low-shrinkage polyester industrial yarn and a preparation method thereof are provided. The preparation method includes the following steps: subjecting the modified polyester to polycondensation, melting, measuring, extruding, cooling, oiling, stretching, heat setting and winding, wherein the content of the crown ether in the oil agent is 67.30-85.58 wt %. The material of the prepared low shrinkage polyester industrial yarn is a modified polyester, the molecular chain of the modified polyester includes a terephthalic acid segment, an ethylene glycol segment, and a branched diol segment, and the structural formula of the branched diol is as follows: Wherein R1 and R2 are each independently selected from a linear alkylene group having 1-3 carbon atoms, R3 is selected from an alkyl group having 1-5 carbon atoms, and R4 is selected from an alkyl group consisting of 2-5 carbon atoms.

公开(公告)号：US10604621B2

公开(公告)日：2020-03-31

申请号：US16322952

申请日：2017-06-26

Applicant: JIANGSU HENGLI CHEMICAL FIBRE CO., LTD.

Inventor： Hongwei Fan ,  Shanshui Wang ,  Zhujun Ding ,  Lili Wang ,  Zangzang Niu ,  Xiaohua Sun

IPC: C08G63/183 ,  D01D5/247 ,  D01D5/253 ,  D01D5/08 ,  C08G63/91 ,  D01D4/02 ,  D01F6/84

Abstract: 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%.

公开(公告)号：US10590564B2

公开(公告)日：2020-03-17

申请号：US16322950

申请日：2017-06-26

Applicant: JIANGSU HENGLI CHEMICAL FIBRE CO., LTD.

Inventor： Hongwei Fan ,  Guanfan Jin ,  Ming Chen ,  Lixin Yin ,  Fangming Tang ,  Chaoming Yang

IPC: C08G63/183 ,  D01D5/247 ,  D01D5/253 ,  D01D5/08 ,  C08G63/91 ,  D01D4/02 ,  D01F6/84 ,  D02G1/18 ,  D06P3/54 ,  D01D5/16 ,  D01F1/10 ,  D01F6/92

Abstract: A different shrinkage composite yarn and preparation method. The modified polyester is spun with a porous spinneret to produce a different shrinkage composite yarn, and the spinneret holes on the porous spinneret are arranged in an elliptical arrangement. The different shrinkage composite yarn is obtained by winding modified polyester POY yarn and FDY yarn, network recombining, and coiling them. 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 CV value of breaking strength is ≤4.0%, the CV value of elongation at break is ≤8.0%, the CV value of coefficient of variation of coiling shrinkage is ≤8.0%.

公开(公告)号：US20180201725A1

公开(公告)日：2018-07-19

申请号：US15744853

申请日：2016-06-12

Applicant: JIANGSU HENGLI CHEMICAL FIBRE CO., LTD.

Inventor： Hongwei Fan ,  Wengang LI ,  Yanfang WANG ,  Lili WANG ,  Damao Yang ,  Fangming TANG ,  Lixin YIN ,  Guangkun SONG

IPC: C08G63/183 ,  C08G63/83 ,  D01F6/62

Abstract: A high-modulus low-shrinkage polyester industrial yarn obtained by subjecting a polyester to dissolution, washing and solid state polycondensation followed by spinning. The high-modulus low-shrinkage polyester industrial yarn has a dry heat shrinkage rate of 2.0±0.25% under test conditions of 177° C.×10 min×0.05 cN/dtex. The average value of the crystal volume VC of the high-modulus low-shrinkage polyester industrial yarn is larger than 230 mm3. The high-modulus low-shrinkage polyester industrial yarn has a fiber modulus of ≥100 cN/dtex. The polycondensation catalyst consists of magnesium ethylene glycol and antimony ethylene glycol, which has a small thermal degradation coefficient.

公开(公告)号：US11686018B2

公开(公告)日：2023-06-27

申请号：US17789218

申请日：2020-06-11

Applicant: JIANGSU HENGLI CHEMICAL FIBRE CO., LTD.

Inventor： Shanshui Wang ,  Hongwei Fan ,  Fangming Tang ,  Lili Wang

IPC: D01F6/92 ,  D01D5/22 ,  D01D5/088 ,  D01D10/02

CPC classification number: D01F6/92 ,  D01D5/088 ,  D01D5/22 ,  D01D10/02

Abstract: A degradable polyester fiber and its preparation method are disclosed. The preparation method is to cool a PET melt dispersing with doped ZrO2 powder by ring-blowing after extruded from a trilobal spinneret hole on a spinneret, and manufacture a fully drawn yarn (FDY) according to an FDY process with the PET melt, then the degradable polyester fiber is prepared after a relaxation heat treatment. The trilobal spinneret hole on the spinneret has three leaves with unequal lengths and angles, and all the trilobal spinneret holes are distributed in concentric circles, with a center line of the leaf opposite to the smallest angle in each trilobal spinneret hole passing through the center of the circle, and pointing away from the center of the circle. The process is simple, and the obtain fiber has good performances in degradation and elasticity.

公开(公告)号：US11639562B2

公开(公告)日：2023-05-02

申请号：US16640061

申请日：2018-07-27

Applicant: JIANGSU HENGLI CHEMICAL FIBRE CO., LTD.

Inventor： Hongwei Fan ,  Shanshui Wang ,  Lili Wang ,  Lixin Yin

IPC: D01D1/06 ,  D01D5/12 ,  D01D5/253 ,  D01F1/10 ,  D01F6/62 ,  D02J1/22 ,  D06M13/165 ,  D01F6/92 ,  D01D5/088 ,  D01D5/096 ,  D01D5/16 ,  D01D10/02 ,  D01D5/08 ,  D06M101/32

Abstract: A thermal-moisture comfortable polyester FDY for summer use and a preparation method thereof are provided. The FDY is made of matting agents dispersed polyester via the steps of spinning melt metering, extruding via the compositional spinneret, cooling, oiling, drawing, heat setting and winding. The woven fabrics manufactured with the FDY possess a wicking height and an evaporation rate of larger than or equal to 135 mm and 0.22 g/h, respectively. The compositional spinneret is simultaneously provided with cruciform orifices and circular orifices, and the length ratio of cruciform orifice to circular orifice is equal to the product of their equivalent diameter ratio and a coefficient K, here equivalent diameter is the ratio of orifice cross-section area to its circumference and K ranges from 0.97 to 1.03, and the oiling involves the oiling agent containing 67.30-85.58 wt % of crown ether.

公开(公告)号：US11035056B2

公开(公告)日：2021-06-15

申请号：US16638477

申请日：2018-07-27

Applicant: JIANGSU HENGLI CHEMICAL FIBRE CO., LTD.

Inventor： Hongwei Fan ,  Damao Yang ,  Ye Zhang ,  Fangming Tang ,  Huirong Zhao

IPC: D01D5/088 ,  C08J5/02 ,  D01D5/096 ,  D01F6/62 ,  D01F11/08

Abstract: A method for improving the quality of a polyester industrial yarn is provided. First, in the cooling process of preparing a polyester industrial yarn prepared by polyester spinning, the longitudinal height is kept unchanged, and the cross-sectional area of the slow cooling chamber is enlarged. The chamber maintains the surface temperature of the spinneret by means of heat preservation, and then uses an oil agent containing 67.30-85.58 wt % crown ether in the oiling process of polyester industrial yarn prepared by polyester spinning. Enlarging the cross-sectional area of the slow-cooling chamber refers to the cross section of the slow cooling chamber is changed from a circular shape to a rectangular shape while keeping the spinneret connected to the slow cooling chamber unchanged. The cleaning cycle of the spinneret is prolonged by 35-45%, the full package rate of polyester industrial yarn is larger than 99%.

公开(公告)号：US10822451B2

公开(公告)日：2020-11-03

申请号：US16640065

申请日：2018-07-27

Applicant: JIANGSU HENGLI CHEMICAL FIBRE CO., LTD.

Inventor： Hongwei Fan ,  Fangming Tang ,  Lixin Yin ,  Shanshui Wang

IPC: C08G63/183 ,  C08G63/86 ,  D01D5/253 ,  D01D5/30 ,  D01F1/10 ,  D01F6/92 ,  D06M13/224 ,  D06M13/256 ,  D06M13/292 ,  D06M15/53 ,  D06M101/32

Abstract: A bi-profiled fiber and preparing method thereof are provided. The bi-profiled fiber is manufactured through the steps of spinning melt metering, extruding via the composite spinneret, cooling, oiling, drawing, heat setting and winding, finally containing both double-cross monofilaments and circular monofilaments simultaneously. The bi-profiled fiber is made of the modified polyester, and the modified polyester is dispersed by matte agent and is composed of terephthalic acid segments, ethylene glycol segments and branched diol segments, and the branched diol segment has a structural formula of where R1 and R2 are separately selected from the linear alkylene with 1-3 carbon atoms, R3 from the alkyl with 1-5 carbon atoms, and R4 from the alkyl with 2-5 carbon atoms. The matte agents is a mixture of amorphous titanium dioxide and amorphous silicon dioxide, or a mixture of calcium carbonate and amorphous silicon dioxide.

公开(公告)号：US10801132B2

公开(公告)日：2020-10-13

申请号：US16322949

申请日：2017-06-26

Applicant: JIANGSU HENGLI CHEMICAL FIBRE CO., LTD.

Inventor： Hongwei Fan ,  Lili Wang ,  Xiaobing Fan ,  Damao Yang ,  Guangkun Song ,  Huirong Zhao ,  Shanshui Wang

IPC: C08G63/183 ,  D01D5/247 ,  D01D5/253 ,  D01D5/08 ,  C08G63/91 ,  D01D4/02 ,  D01F6/84 ,  D01F6/92 ,  C08J3/22 ,  C08L67/02 ,  D01F1/06 ,  D01F1/10

Abstract: A high uniformity coloured polyester industrial yarn and preparation method. The raw material of the high-uniformity coloured polyester industrial yard is the modified polyester composed of terephthalic acid segment, an ethylene glycol segment and a branched diol. The high-uniformity coloured polyester industrial yarn is prepared by esterification reaction of terephthalic acid with a branched diol using concentrated sulfuric acid as catalyst to obtain terephthalic acid glycol ester. Terephthalic acid and ethylene glycol are formulated to carry out esterification reaction to obtain ethylene terephthalate. Finally, stir and mix the two materials and carry out the polycondensation reaction in the low vacuum stage and the high vacuum stage under the action of the catalyst and the stabilizer to obtain modified polyester. Measure the modified polyester and add black masterbatch. After porous spinneret extrusion, cooling, oiling, drawing, heat setting and winding the modified polyester, high uniformity coloured polyester industry yarn is obtained.

公开(公告)号：US20180201726A1

公开(公告)日：2018-07-19

申请号：US15744867

申请日：2016-06-12

Applicant: JIANGSU HENGLI CHEMICAL FIBRE CO., LTD.

Inventor： Hongwei Fan ,  Fangming TANG ,  Xiaoyu WANG ,  Wengang LI ,  Lili WANG ,  Shanshui WANG ,  Qianhan LIU ,  Zangzang NIU

IPC: C08G63/183 ,  C08G63/86 ,  C08G63/83 ,  C25B3/12 ,  D01F6/62

CPC classification number: C08G63/183 ,  C08G63/78 ,  C08G63/83 ,  C08G63/866 ,  C08G63/90 ,  C25B3/12 ,  D01F6/62

Abstract: A polyester obtained by the esterification of terephthalic acid and ethylene glycol and the polycondensation catalysed by a mixture of magnesium ethylene glycol and antimony ethylene glycol followed by granulation. In the polyester sections, the carboxyl end group is less than 15 mol/t, the mass percentage of oligomer is lower than 0.5%, and weight percentage of diethylene glycol is lower than 0.5%.