Method of manufacturing slide fastener chain bearing patterns

Details Method of manufacturing slide fastener chain bearing patterns Method of manufacturing slide fastener chain bearing patterns

A - Human Necessities

44

B

26/168

A44B 19/42 (2006.01) A44B 19/50 (2006.01)

Patent

CA 2023279

In manufacturing a slide fastener chain, (a) two series of alignment markers are applied to the continuous fastener tapes at intervals longitudinally thereof with their respective patterns matched with each other; (b) the opposed continuous fastener tapes are fed in side-by-side toward an element-attaching station; (c) the corresponding alignment markers are detected during the feed of the opposed continuous fastener tapes; (d) the feeds of the opposed fastener tapes are controlled in such a way that the fastener tapes are allowed to continue feeding if the corresponding alignment markers prove to be in registry with each other, or the feed of the preceding fastener tape is restrained to thus bring the corresponding alignment markers into registry, if the corresponding alignment markers proves out of registry with each other; and (e) the two rows of continuous fastener elements are applied to the longitudinal edges of the opposed fastener tapes with the alignment markers in registry with each other, so that a slide fastener chain having the continuous fastener tapes bearing their respective patterns matched with each other is provided.

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