Apparatus and method for treating synthetic yarns
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United States of America Patent
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Jan 1, 2008
Grant Date -
Feb 2, 2006
app pub date -
Jul 26, 2005
filing date -
Jul 28, 2004
priority date (Note) -
In Force
status (Latency Note)
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Abstract
The present invention relates to equipment/apparatus, and the relative method/process, for the treatment of synthetic filaments, in particular for drawing said filaments, comprising at least two nozzles each provided with a main passage, through which said yarns pass, having a section variable between an inlet portion and an outlet portion and into which at least one supply channel opens to supply a fluid according to a preferential direction. Advantageously, the nozzles are provided in line and the sections of the main passage of the second nozzle have an area at least 3% larger than the corresponding sections of the main passage of the first nozzle.
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