Continuous multifilament sewing thread and process for making same
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United States of America Patent
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-
Jun 20, 1989
Grant Date -
N/A
app pub date -
Feb 22, 1988
filing date -
Feb 20, 1987
priority date (Note) -
Expired
status (Latency Note)
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Abstract
A sewing thread, whose twist factor is between 100 and 150, consists essentially of a fixed high-tenacity multifilament core, sheathed with a cover of staple fibers, the unit being wrapped with a multifilament yarn. The process of spinning this sewing thread is performed on a spinning frame. The core yarn and the roving of staple fibers are brought to drawing rolls in the drawing plane, and wrapping yarn is brought to the drawing rolls in an offset manner relative to the spinning plane.
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