Title:
POLYESTER BINDER FIBER
Document Type and Number:
Japanese Patent JP2023002367
Kind Code:
A
Abstract:
To provide a polyester binder short fiber capable of favorably using as a binder fiber, exerting good adhesion effect without heightening a thermal adhesion treatment temperature, capable of improving a processing rate, and further capable of favorably using as a nonwoven fabric used for a special field such as a filter cloth and a permeable membrane for water treatment.SOLUTION: The polyester binder fiber is a binder fiber composed of a polyester resin including a dicarboxylic acid constituent, and a glycol constituent, where the glycol constituent includes ethylene glycol, and also includes diethylene glycol and triethylene glycol, the polyester resin is composed of polyester having a content of triethylene glycol in the glycol constituent of more than 0.1 mol% and 5.5 mol% or less, the fiber length is 1-30 mm, and the birefringence is lower than 0.015.SELECTED DRAWING: None
Inventors:
FUKUBAYASHI YUMETO
TEMMAN YUTA
TOMIMORI YASUHIRO
TEMMAN YUTA
TOMIMORI YASUHIRO
Application Number:
JP2021103566A
Publication Date:
January 10, 2023
Filing Date:
June 22, 2021
Export Citation:
Assignee:
UNITIKA LTD
NIPPON ESTER CO LTD
UNITIKA TRADING CO LTD
NIPPON ESTER CO LTD
UNITIKA TRADING CO LTD
International Classes:
C08G63/183; D01F6/62