Filter element, method for manufacture thereof, and filter using said element
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United States of America Patent
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May 30, 2006
Grant Date -
May 5, 2005
app pub date -
Apr 1, 2002
filing date -
Apr 4, 2001
priority date (Note) -
Expired
status (Latency Note)
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Abstract
The invention provides a filter element exhibiting an excellent deodorizing and adsorbing function with low pressure drop, as well as to a method for its manufacture and a filter using the element. The filter element is manufactured by coating a base fabric with an adhesive and allowing the fabric to move in an electrostatic field formed by a high voltage generating device to allow pulverized adsorbent powder with a specific mean particle size and standard deviation to electrostatically adhere to the base fabric surface. The filter element can also be manufactured by dispersing a pulverized adsorbent powder on the surface of a base fabric comprising heat-fusible fibers, and then partially fusing the heat-fusible fibers by heating to attach them to the adsorbent powder and allow the adsorbent powder to adhere to the base fabric surface.
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