Method of finishing a slide fastener chain

Details Method of finishing a slide fastener chain Method of finishing a slide fastener chain

1979-10-18

1981-12-08

Derrington, James H.

Plastic and nonmetallic article shaping or treating: processes

Utilizing heat releasable stress to reshape solid workpiece

264280, 425814, B29D 500

Patent

active

043047483

ABSTRACT:
A method is disclosed whereby a pair of stringers for slide fasteners are subjected to heat treatment to permit the fibers of stringer tapes to be contracted particularly in the region of longitudinal edge portions of the tapes where rows of fastener elements are secured. The thus contracted tape edges are further shaped by compression molding so as to present a transverse cross section complimentary with that of a guide channel in a slider.

REFERENCES:
patent: 3086246 (1963-04-01), Stone
patent: 3176637 (1965-04-01), MacFee

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