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US 6,395,046 B1Granted
Dust filter bag containing nano non-woven tissue
AssigneeFiberMark Gessner GmbH & Co.
InventorsDietmar Emig, Albrecht Klimmek, Ernst Raabe
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AssigneeFiberMark Gessner GmbH & Co.
InventorsDietmar Emig, Albrecht Klimmek, Ernst Raabe
Estimating the term…
A dust filter bag constituted of a plurality of layers including at least one carrier material and at least one non-woven tissue layer wherein the at least one non-woven tissue layer has a nano non-woven tissue with an average fiber diameter of 10 to 1000 mm, a basis weight of 0.05 to 2 g/m2 and an air permeability of 1500 to 20,000 l/m2×s, and the at least one carrier material layer and an air permeability of more than 70 l/m2×s, and a breaking resistance 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.
A dust filter bag comprising a plurality of layers constituted of at least. one layer of a carrier material and at least one non-woven tissue layer, said at least one non-woven tissue layer being a nano non-woven tissue layer with an average fiber diameter of 10 to 1000 nm, a basis weight of about 0.05 to 2 g/m2, and an air permeability of about 1500 to 20,000 l/m2, l/m2×s, and wherein said at least one carrier material layer has an air permeability of greater than 70 l/m2×s, a breaking resistance in a longitudinal direction of the layer of greater than 20 N/15 mm strip width and in a transverse direction of more than 10 N/15 mm strip width.
Dependencies are inferred from the claim text.