DUST COLLECTION BAG FOR VACUUM CLEANER

摘要

PROBLEM TO BE SOLVED: To provide a dust collection bag for a vacuum cleaner which is capable of maintaining the capturing performance equivalent to that of a nonwoven fabric made of paper and the low pressure drop not obtainable with the conventional nonwoven fabric made of paper while reducing a production cost to the production cost equivalent to that of the conventional nonwoven fabric made of paper. SOLUTION: This dust collection bag for a vacuum cleaner consists of a laminate 10 of at least three layers laminated with an inner layer 1, intermediate layer 2 and outer layer 3 in this order in a pass direction of suction air. The inner layer 1 is the nonwoven fabric having breaking tenacity of >=0.5 kg/50 mm (4.9 N/50 mm) and the intermediate layer 2 is the electret melt flow nonwoven fabric having an average pore diameter of >25 to <=50μm and a maximum pore diameter of <=70μm. The outer layer 3 of the dust collection bag for the vacuum cleaner is the nonwoven fabric having rapture strength of >=1.0 kg/50 mm (9.8 N/50 mm) and strength of >=1.5 kg/50 mm (14.7 N/50 mm) at 1% elongation.