Dust filter bag
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United States of America Patent
Stats
-
Feb 27, 2001
Grant Date -
N/A
app pub date -
Jul 21, 1999
filing date -
Jul 21, 1998
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A dust filter bag made of a fiber layer laminated together with a paper layer. The fiber layer is made of synthetic polymer fibers and is arranged on the downstream side of the paper layer. To increase the strength of the dust filter bag, the fiber layer contains melted polymer regions and by way of the polymer regions the fiber layer is additionally consolidated within itself and joined to the paper layer. The polymer regions have a welded area of 0.5 to 10% of the surface area, preferably 1 to 3%, thus resulting in sufficient laminate strength with a low pressure drop.
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Cited Art Landscape
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