Title:
【発明の名称】アルカリ電池セパレータ用不織布及びその製造方法
Document Type and Number:
Japanese Patent JP3372346
Kind Code:
B2
Abstract:
PURPOSE:To provide a nonwoven fabric for an alkaline battery separator with high absorbency and retainability of an electrolyte in spite of low basic weight and provide its manufacturing method. CONSTITUTION:Organic fibers mainly comprise split type composite fibers obtained by joining polyolefin polymer and ethylene vinyl alcohol copolymer and fibrillating polyolefin fibers with a water filtering value of 20sec or more. Preferably, the fibrillating polyolefin fiber is treated by using a high pressure homogenizing device. The split type composite fibers are split to extra fine fibers in water with a macerating machine, then dispersed together with the fibrillating polyolefin fibers to form slurry, the slurry is treated with a paper machine in a wet paper machine process to form a web, then both surfaces of the web are treated with corona discharge.
Inventors:
Toshihiro Shigematsu
Takaomi Ishikawa
Takahiro Tsukuda
Takaomi Ishikawa
Takahiro Tsukuda
Application Number:
JP9607494A
Publication Date:
February 04, 2003
Filing Date:
May 10, 1994
Export Citation:
Assignee:
Mitsubishi Paper Mills Co., Ltd.
International Classes:
D06M10/00; D06M10/02; D21H13/14; D21H15/10; H01M2/16; D06M101/00; D06M101/16; D06M101/18; D06M101/20; D06M101/22; (IPC1-7): H01M2/16; D21H13/14; D21H15/10
Domestic Patent References:
| JP5567100A | ||||
| JP3257755A |