Nonwoven fabric, method for producing the same, and filter formed with the same
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United States of America Patent
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Aug 15, 2017
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N/A
app pub date -
Feb 28, 2011
filing date -
Oct 14, 2010
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Abstract
The present invention provides a novel nonwoven felt fabric, which is made of at least one low-melting-point short fiber and at least one high-melting-point short fiber of same type or different types, wherein the fabric is stiff enough to be self-sustaining and have the ability of shape maintenance. The felt fabric exhibits excellent pleatability, moldability and compressive strength. The invention also provides a method for producing the felt fabric, and a filter comprising the felt fabric used as the material of a filter medium of the filter, wherein the filter medium requires no support structure to stand alone and persistently retains its shape.
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