DUST FILTER BAG CONTAINING NANO NON-WOVEN TISSUE

摘要

A dust filter bag comprising at least one carrier material layer and at least one non-woven tissue layer wherein the at least one non-woven tissue layer has a nano non-woven tissue layer with an average fiber diameter of 10 to 1000 mm, a basis weight (ISO 536) of 0.05 to 2 g / m2 and an air permeability (ISO 9237) of 1500 to 20 000 1 / m2 x s, and the at least one carrier material layer has an air permeability (ISO 9237) of more than 70 l / m2 x s, a breaking resistance (ISO 1924-2) in the longitudinal direction of more than 20 N / 15 mm strip width, and in the transverse direction of more than 10 N / 15 mm strip width. The dust filter bag is suitable for use in vacuum cleaners for the efficient reduction of the finest dust, without the suction power of the vacuum cleaner being notably reduced.