Method and apparatus for producing high quality yarn on a ring-spinning machine
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United States of America Patent
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Jun 30, 2009
Grant Date -
Jul 3, 2008
app pub date -
Jun 26, 2007
filing date -
Dec 28, 2006
priority date (Note) -
Expired
status (Latency Note)
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Abstract
A method of producing a high quality of yarn by an iron-heating apparatus, including the steps of: guiding a yarn to pass between upper and lower rollers, wherein the yarn is exited at a front nip in a twisting triangle area; guiding the yarn to enter to a groove of a heating main body of the iron-heating apparatus; heating the yarn along the groove to reduce a rigidity of the yarn so as to allow the yarn to be easily twisted to form an improved yarn with high quality; and enwrapping the improved yarn on a spun yarn tube. In addition, a counter frictional force is applied at the yarn through walls of the groove such that fiber on a surface of the yarn is further twisted to the yarn for minimizing hairiness.
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