APPARATUS FOR MAKING A HIGH LOFT, NON-WOVEN WEB EXHIBITING EXCELLENT RECOVERY
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United States of America Patent
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Jan 18, 2017
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Jan 29, 2014
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Abstract
An apparatus for making a high loft, non-woven web exhibiting excellent recovery is disclosed. The web has a 3-dimensional structure with fibers oriented in the x, y and z directions. The apparatus includes a die having 2 to 20 rows of nozzles with each row containing a plurality of nozzles. A pair of moving surfaces is located from a distal end of each nozzle. The pair of moving surfaces form a convergent passage. A pair of heaters is used to heat each of the pair of moving surfaces. A plurality of filaments are deposited onto the pair of moving surfaces and are routed through the convergent passage to form a 3-dimensional structure having two thin outer skins.
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