Nonwoven having improved wet fastness and alkali resistance and cellulose hydrate-based food casing from said nonwoven
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United States of America Patent
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Sep 18, 2012
Grant Date -
Nov 26, 2009
app pub date -
Oct 15, 2005
filing date -
Oct 20, 2004
priority date (Note) -
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Abstract
The invention relates to a wet-fast nonwoven, preferably a fiber paper, which comprises fibers from a cellulose-containing material and fibers from a thermoplastic material welded firmly together at their points of intersection. The fibers from the cellulose-containing material are preferably hemp fibers while the fibers from the thermoplastic material are preferably fibers from polypropylene, polyester or polyamide. The fibers are interlinked under the action of pressure and/or heat, especially using a pair of heated calender rolls. The nonwoven or the fiber paper is especially used to reinforce food casings based on regenerated cellulose, especially in artificial cellulose hydrate-based sausage skins.
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