Continuous multifilament sewing thread and process for making sa

Details Continuous multifilament sewing thread and process for making sa Continuous multifilament sewing thread and process for making sa

1988-02-22

1989-06-20

Watkins, Donald

Textiles: spinning, twisting, and twining

Strand structure

Covered or wrapped

57 6, 57224, D02G 328, D02G 304

Patent

active

048400211

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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patent: 2449595 (1948-09-01), Ellis
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patent: 3410078 (1968-11-01), Freedman et al.
patent: 3609953 (1971-10-01), Kitawaza
patent: 4018042 (1977-04-01), Maag et al.
patent: 4069656 (1978-01-01), Arai
patent: 4484433 (1984-11-01), Stahlecker et al.

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