SPUN-BONDED NONWOVEN FABRIC AND AIR FILTER CONSTITUTED FROM SPUN-BONDED NONWOVEN FABRIC

摘要

In order to provide a spun-bonded nonwoven fabric that has low pressure loss, high dust collection performance, and excellent processability, and an air filter using the spun-bonded nonwoven fabric, the present invention provides a spun-bonded nonwoven fabric constituted from fibers comprising a polyolefin resin, the average single-fiber diameter thereof being 6.5-22.0 µm (inclusive), and the spun-bonded nonwoven fabric containing 0.1-5 mass% (inclusive) of the hindered amine compound represented in general formula (1), wherein the melt flow rate (MFR) of the nonwoven fabric is 32-850 g/10 minutes (inclusive), and the nonwoven fabric is electret-processed.