Discontinous polyethylene terephthalate fibres and method for producing the same
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United States of America Patent
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Nov 11, 2003
Grant Date -
N/A
app pub date -
May 21, 2002
filing date -
Jul 22, 1999
priority date (Note) -
Expired
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Abstract
PTT staple fibers which are characterised by a novel combination of properties. In combination with novel stress-strain properties and modulus parameters, staple fibers or textiles or home textiles having extremely desirable aesthetics and service quality are obtained. Economical two-stage process for the production of PTT staple fibers. The melt spinning is carried out at a high polymer throughput and a spinning take-off speed of at least 600 m/min. In a separate fiber drawing frame, the stretching, heat-setting, crimping and drying are carried out.
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