Nonwoven Fabric For Alkaline Battery Separator

The non woven fabric for an alkaline battery separator is a dicarboxylic acid component containing 60 mol % or more of the dicarboxylic acid component and an aliphatic dicarboxylic acid component. And 60 mol % or more of the diamine component is a fat having 6 to 12 carbon atoms. 

A nonwoven fabric for an alkaline battery separator comprising a semi - aromatic polyamide fiber composed of a diamine component of an alkylene diamine and an ethylene - vinyl alcohol copolymer fiber. The nonwoven fabric roll has a specific gravity of 1.30 at 90 ° C. In the alkali resistance test in the KOH aqueous solution, the nonwoven fabric  for an alkaline battery separator having an excellent alkali resistance of 5 % or less of the nonwoven fabric for a separator after 20 days passed. Therefore, it can be applied to a non woven fabric for an alkaline battery separator which can be quickly charged and discharged with a large current. It has a high capacity, and a small thickness.