Patent ID: 8118902
Filing Date: 2012-02-21
Classification: B01D,Y10T

Abstract:
1. A filtering medium having a non-woven fabric containing mainly an organic fiber, in which single fibers are fixed with resin or thermal adhesive fiber, wherein the non-woven fabric has a specific strength at 1% elongation of 1000 N·cm/g or more and air permeability of 100 cm 3 /cm 2 ·sec or more; wherein an apparent density of the non-woven fabric is no less than 0.08 g/cm 3 and is no more than 0.18 g/cm 3 ; and wherein a non-crimped single fiber having Young's modulus of 150 cN/dtex or more to 3000 cN/dtex or less, and a fineness of 7 dtex or more, is contained at a ratio of 20% or more of a total fiber mass.