Method and apparatus for producing a low-shrinking smooth yarn
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United States of America Patent
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Sep 18, 2007
Grant Date -
Apr 29, 2004
app pub date -
Oct 22, 2003
filing date -
May 5, 2001
priority date (Note) -
Expired
status (Latency Note)
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Abstract
A method and apparatus for producing a high-strength and low-shrinkage synthetic flat yarn. After melt spinning, the filaments are combined to a yarn and drawn. Subsequently, the yarn is compressed to form a plug under the influence of heat. This plug is transported over a certain distance, so that the yarn relaxes in a low-tension state and under the influence of the increased temperature. Finally the plug is disentangled under tension to form the flat yarn, which is wound into a package.
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