SPUNBOND NONWOVEN FABRIC, FILTER MEDIA FOR DUST-COLLECTOR PLEATED FILTER, DUST COLLECTOR PLEATED FILTER, AND LARGE AIR-BLAST PULSE-JET-TYPE DUST COLLECTOR

WIPO Patent Application WO/2021/132410

A1

This spunbond nonwoven fabric is constituted by thermoplastic continuous filaments composed of high-melting-point components and low-melting-point components, wherein: the coefficient of variability (CV) in the vapor transmission rate of the spunbond nonwoven fabric is 15% or less; the bending resistance along the machine direction (MD) is 40-80 mN; and in a cross-section of the nonwoven fabric, where the thickness from one surface to another surface of a non-fused projection is tA, the thickness from one surface to another surface of a fused indentation is tB, and the distances from one surface of the projection to one surface of the indentation are tC and tD (tC