公开(公告)号：US10407538B2

公开(公告)日：2019-09-10

申请号：US15744869

申请日：2016-10-25

申请人： JIANGSU HENGLI CHEMICAL FIBRE CO., LTD.

发明人： Guanfan Jin ,  Yiwei Shao ,  Ye Zhang ,  Lijun Wang ,  Huaizhi Zhuo ,  Zhujun Ding

IPC分类号： C08G63/183 ,  C08G63/86 ,  D01F1/10 ,  D01F6/92 ,  C08G63/83 ,  D02G1/18 ,  D01F6/62 ,  C25B3/12 ,  D01D5/08 ,  D06P1/16

摘要： A low chromatic aberration polyester different-shrinkage composite yarn is made of polyester POY yarn and polyester FDY composite yarn. The polyester POY yarn and polyester FDY yarn is obtained by spinning the polyester solution, the rupture strength of the low color polyester different-shrinkage composite yarn is ≥1.9 cN/dtex, the elongation at break is 30.0±5.0%, the crimp shrinkage is 2.50±3.0%, the network degree is 20±5/m, the color difference ΔE is less than 0.200. In the invention, the magnesium ethylene glycol is relatively mild, the thermal degradation coefficient is small, the oligomers in the polymerization process is reduced, and the oligomers in the dissolution process are further reduced, so that the appearance of stains and streaks reduces during the dyeing and post-processing heat setting of the polyester fiber, which ensures the fiber's leveling and rubbing fastness.

公开(公告)号：US12077883B2

公开(公告)日：2024-09-03

申请号：US18269968

申请日：2021-08-25

申请人： JIANGSU HENGLI CHEMICAL FIBRE CO., LTD.

发明人： Shanshui Wang ,  Fangming Tang ,  Lili Wang ,  Yiwei Shao ,  Yanli Zhao ,  Xiaoyu Wang ,  Chaoming Yang

IPC分类号： D01F6/84 ,  C08G63/183 ,  C08G63/685 ,  C08G63/80 ,  C08G63/86 ,  C08G63/91 ,  D01D5/08 ,  D01F11/08

CPC分类号： D01F6/84 ,  C08G63/183 ,  C08G63/6856 ,  C08G63/80 ,  C08G63/866 ,  C08G63/916 ,  D01D5/08 ,  D01F11/08 ,  D10B2331/04 ,  D10B2401/063

摘要： A high-strength thermal-stability polyester industrial yarn is prepared by spinning, winding and coordination treatment of a modified polyester after a solid-state polycondensation; wherein the method of coordination treatment comprises: soaking the wound fiber in an aqueous solution of a coordination agent, and the concentration of the aqueous solution of the coordination agent is 0.1-0.2 mol/L; wherein the condition of coordination treatment is 48-72 hours at 80-100° C., and the concentration of the aqueous solution of the coordination agent is 0.1-0.2 mol/L; wherein the polyester segments of the prepared high-strength thermal-stability polyester industrial yarn comprises a terephthalic acid segment, an ethylene glycol segment and a 2,6-pyridinedicarboxylic acid segment, and 2,6-pyridinedicarboxylic acid segments of different polyester segments are coordinated by Fe3+, the molar ratio of the terephthalic acid segment to the 2,6-pyridinedicarboxylic acid segment is 1:(0.03-0.05).

公开(公告)号：US10982044B2

公开(公告)日：2021-04-20

申请号：US16640737

申请日：2018-07-27

申请人： JIANGSU HENGLI CHEMICAL FIBRE CO., LTD.

发明人： Hongwei Fan ,  Yiwei Shao ,  Lixin Yin ,  Fangming Tang

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

摘要： 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.