Title:
ワンステップ紡糸法による弾性複合糸およびその製造方法
Document Type and Number:
Japanese Patent JP6955634
Kind Code:
B2
Abstract:
A type of one-step spun composite DTY and preparation method thereof are disclosed. The bi-profiled fiber is manufactured with two types of modified polyester of different viscosities through the steps of melting, melt metering, composite extruding, cooling, oiling, drawing, heat setting and winding. Wherein those two modified polyesters have a molecular structure including terephthalic acid segments, ethylene glycol segments and branched diol segments, and the branched diol has a structural formula ofhere R1and R2are separately selected from the linear alkylene with 1-3 carbon atoms, R3from the alkyl with 1-5 carbon atoms, and R4from the alky with 2-5 carbon atoms. The obtained one-step spun composite DTY has an elastic shrinkage rate of no less than 35%. The method presented in this invention is involved in a simple and reasonable technological process for wide application range.
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Inventors:
Hanbei
Golden rule
Chen Ming
Nikorin
Wang Yongfeng
King Somei
Golden rule
Chen Ming
Nikorin
Wang Yongfeng
King Somei
Application Number:
JP2020529695A
Publication Date:
October 27, 2021
Filing Date:
July 27, 2018
Export Citation:
Assignee:
Jiangsu Hengli Chemical Fiber Co., Ltd.
International Classes:
D01F8/14; C08G63/183; C08L67/02; D01F6/84; D01F6/92
Domestic Patent References:
| JP61089338A | ||||
| JP4139212A |
Foreign References:
| WO2004079062A1 |
Attorney, Agent or Firm:
Goto Patent Office