DRY TYPE NONWOVEN FABRIC FOR HEAT RESISTANT FILER AND BAG FILTER FORMED FROM THE SAME

摘要

PROBLEM TO BE SOLVED: To provide a dry type nonwoven fabric for a heat resistant filter excellent in rigidity and abrasion resistance under high temperature while having excellent dust peeling property and dust collecting property.;SOLUTION: There is provided a dry type nonwoven fabric for heat resistant filter which is a dry type nonwoven fabric for heat resistant filter formed from a polyphenylene sulfide fiber and is formed from a first web layer used as a filtration surface, a reinforcing layer and a second web layer used as a non-filtration surface, where when the whole first web layer is 100 wt.%, the first web layer contains 5-60 wt.% of a polyphenylene sulfide fiber having fineness of 0.5-1.2 dtex and a fiber length of 25 mm or more and 44 mm or less, and 40-95 wt.% of a polyphenylene sulfide fiber having fineness of 1.3-2.5 dtex and a fiber length of 30 mm or more and 76 mm or less.;SELECTED DRAWING: None;COPYRIGHT: (C)2017,JPO&INPIT