Producing yarn
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United States of America Patent
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Aug 6, 2013
Grant Date -
Apr 28, 2011
app pub date -
Oct 21, 2010
filing date -
Apr 21, 2008
priority date (Note) -
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Abstract
A process for the production of a yarn is disclosed, the process comprising providing a bundle comprising continuous filaments of a thermoplastic polymer, contacting the bundle with a sliver comprising fibers of a heat resistant material to form a mixed bundle, and applying a gas jet to the mixed bundle to distribute the fibers of the heat resistant material in the bundle. Also disclosed are yarns comprising filaments of a thermoplastic polymer and fibers of a heat resistant material, wherein the fibers are distributed between and among the filaments. Preferably, the heat resistant material is a non-thermoplastic polymer, especially an aramid. Yarns according to the invention find use in technical fabrics especially transmission belts.
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