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Title:
高均一性着色ポリエステル工業糸及びその製造方法
Document Type and Number:
Japanese Patent JP6605756
Kind Code:
B2
Abstract:
The invention relates to a high uniformity coloured polyester industrial yarn and its preparation method. The raw material of the high-uniformity coloured polyester industrial yarn 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 the esterification reaction of terephthalic acid with a branched diol using concentrated sulfuric acid as catalyst to obtain a 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, we can obtain high uniformity coloured polyester industry yarn.

Inventors:
Hanbei
King Rei
Ranged soldier
Yang Sword
Song Koto
Zhao
Osansui
Application Number:
JP2018557072A
Publication Date:
November 13, 2019
Filing Date:
June 26, 2017
Export Citation:
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Assignee:
Jiangsu Hengli Chemical Fiber Co., Ltd.
International Classes:
D01F6/62; C08G63/183; D01D4/02
Domestic Patent References:
JP2002293896A
JP7157921A
Foreign References:
WO2013115096A1
CN102851757A
Attorney, Agent or Firm:
Shin Shin