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1. (WO2018159407) PRODUCTION METHOD OF NONWOVEN FABRIC

Pub. No.:    WO/2018/159407    International Application No.:    PCT/JP2018/006187
Publication Date: Sat Sep 08 01:59:59 CEST 2018 International Filing Date: Thu Feb 22 00:59:59 CET 2018
IPC: D04H 3/009
D01F 6/76
D04H 3/16
Applicants: SUMITOMO CHEMICAL COMPANY, LIMITED
住友化学株式会社
Inventors: KOHINATA Yusaku
小日向 雄作
Title: PRODUCTION METHOD OF NONWOVEN FABRIC
Abstract:
This production method of nonwoven fabric involves spinning a molten aromatic polysulfone resin from a nozzle and extending said resin with a high temperature fluid ejected at high speed to obtain a fibrous aromatic polysulfone resin, and collecting the obtained fibrous aromatic polysulfone resin on a moving collector member. Calculated in accordance with ASTM D 1238, this aromatic polysulfone resin has a melt mass-flow rate of greater than or equal to 130 g/10 min under conditions of a test temperature of 400°C and a nominal load of 2.16 kg. The distance from the nozzle to the collector member is set to no more than 30 mm.