Arrangement for stretching thermoplastic fibers
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United States of America Patent
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-
Nov 6, 1990
Grant Date -
N/A
app pub date -
Nov 20, 1989
filing date -
Dec 2, 1988
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
An arrangement for stretching thermoplastic fibers of synthetic polymers, particularly polypropylene, polyester or polyamide, for producing high strength yarns, comprises a delivery mechanism for delivering fibers, a stretching mechanism for stretching fibers, and a plurality of heated rollers arranged between the delivery mechanism and the stretching mechanism for deviating the fibers and means for applying to the fibers a force which is opposite to a direction of movement of the fibers, none of the rollers being driven and at least one of said rollers is provided with a brake, the fibers passing around the rollers without slippage.
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