... good air permeabiility,high efficient of dust collection,easy seperation. micron bag filters are used at room temperature denier polyester staple ... )150150150150150150150150150acid resistanceexcellentexcellentalkali resistanceGoodgoodabrasion resistanceexcellentexcellentdydrolytic stabilitygoodgoodfinish treatmentsingeing,calendering,heat setting,coated micron bag filters