Method and apparatus for manufacturing non-woven articles
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United States of America Patent
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Nov 14, 2000
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app pub date -
Nov 17, 1998
filing date -
Nov 17, 1998
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Abstract
A method of manufacturing a non-woven material using a contoured honeycomb drum with an outer microporous surface, more particularly with a contoured outer surface, for the manufacture of contoured non-woven fibrous materials. The method can use spunbond or melt blown techniques for depositing solidifying filaments on the microporous surface such that the non-woven material conforms to the contour of the drum, and then removing the non-woven material from the drum. The drum of the current invention facilitates continuous production of non-woven articles with three dimensional shapes such as surgical masks or pleated air filters.
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