Process and apparatus for the continuous heat setting of yarn laid down in loops
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United States of America Patent
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Sep 24, 1996
Grant Date -
N/A
app pub date -
Apr 19, 1995
filing date -
Apr 30, 1994
priority date (Note) -
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Abstract
In the case of a process for the continuous heat setting of yarn, the yarn, laid down in loops on transport belts, is fed through a heat setting chamber which operates with superheated steam and under atmospheric pressure. Because of the entry and exit openings, the temperature inside the heat setting chamber is constant only over a part of the transport length. The chamber temperature is set slightly above the required heat setting temperature. Transport speed and chamber length are so adjusted in relation to each other than the yarn, having reached the heat setting temperature, essentially retains it along a part of the transport length.
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