Apparatus for producing multifilaments
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United States of America Patent
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-
Mar 11, 1997
Issued Date -
N/A
app pub date -
May 18, 1995
filing date -
Jan 9, 1992
priority date (Note) -
Expired
status (Latency Note)
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Abstract
An apparatus for producing multifilaments having high fiber strength is disclosed. A spinneret melt spins a polyolefin at a first temperature into filaments. A cooling duct cools the filaments via convection at a second temperature. A chill roll, disposed downstream from the cooling duct, has a third temperature, and forcibly conductively cools the filaments. Finally, heated drawing rolls, disposed downstream from said chill roll, continuously draw the filaments at a high draw ratio.
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