Drawing/false-twist-texturizing process and novel type of oven enabling it to be implemented
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United States of America Patent
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Jul 6, 1999
Grant Date -
N/A
app pub date -
May 16, 1997
filing date -
Nov 22, 1994
priority date (Note) -
Expired
status (Latency Note)
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Abstract
A drawing/false twist texturizing process capable of being implemented during the treatment of the yarn. During the treatment, the point of striction is localized during the drawing phase by bringing about an abrupt break or modification in the trajectory of the yarn while it is rising in temperature in the texturizing zone. This is achieved by pressing on a surface or element allowing the twist imparted by the false-twisting spindle to be taken back as far as the first feed system. The modification in the trajectory of the yarn is achieved in the actual oven either while the yarn is rising in temperature or in the vicinity of the zone where it reaches its optimum treatment temperature.
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