Method for open-end rotor spinning
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United States of America Patent
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Apr 20, 2004
Grant Date -
Jan 16, 2003
app pub date -
Jun 21, 2002
filing date -
Dec 24, 1999
priority date (Note) -
Expired
status (Latency Note)
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Abstract
It is the object of the invention to propose a method for open-end rotor spinning, wherein the formation of cover yarn, in particular the so-called 'belly bands', is at least appreciably reduced. In accordance with the invention, the fiber flow exiting a fiber guide channel has a directional component in the direction of rotation of the rotor, while the yarn leg (3) extending, from the draw-off nozzle to the rotor groove, is curved opposite the direction of rotation of the rotor, at least near the rotor groove (1), during the spinning process. The creation of this direction of curvature of the yarn leg (3) takes place during the piecing process.
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