Process for production of internally bonded sewing threads

Details Process for production of internally bonded sewing threads Process for production of internally bonded sewing threads

1991-08-05

1993-04-20

Aftergut, Jeff H.

Adhesive bonding and miscellaneous chemical manufacture

Methods

Surface bonding and/or assembly therefor

156161, 156180, 156229, D02G 340

Patent

active

052039390

ABSTRACT:
The invention relates to internally bonded sewing threads and to processes for the production of the internally bonding sewing threads. The internally bonding sewing threads of the invention include three multifilament yarns wrapped helically about a thermoplastic bonding core yarn. Processes of the invention include an improved process for preparing a precursor plied thread which is thereafter thermally treated to provide the internally bonded sewing thread. In addition, the invention provides batch and continuous processes for converting the precursor plied thread into internally bonded sewing thread.

REFERENCES:
patent: 2313058 (1943-03-01), Francis, Jr.
patent: 2713242 (1955-07-01), Esler
patent: 3388030 (1968-06-01), Estes et al.
patent: 3409493 (1968-11-01), McIntyre et al.
patent: 3460338 (1969-08-01), Morrison
patent: 3492802 (1970-02-01), Marzocchi et al.
patent: 3495393 (1970-02-01), Wada et al.
patent: 4095403 (1978-06-01), Beraud et al.
patent: 4299884 (1981-11-01), Payen
patent: 4378725 (1983-04-01), Hospers et al.

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