Slide fastener
AssigneeYoshida Kogyo K.K.
InventorToshiyuki Kihara
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Abstract
A slide fastener is disclosed which comprises a pair of stringer tapes of a warp-knitted structure including wales and fastener component parts attached to the tapes. These fastener component parts are made of a thermoplastic material and attached by injection, extrusion, supersonic or high-frequency heating to the stringer tape or tapes. The resulting tape or tapes are provided with the material of the fastener component parts extended into and through the interstices of the knitted structure and further into the wales so as to provide increased stability of the parts against displacement or detachment under severe stresses.
Claims2
A slide fastener comprising a pair of oppositely disposed stringer tapes of a warp-knitted structure having wales and interstices between adjacent knitting threads and a series of discrete fastener elements made of a thermoplastic material attached to one longitudinal marginal edge of each of said stringer tapes, said fastener elements being secured to one surface of the tape and said marginal edge thereof in such a manner that the material of the fastener elements penetrates into and through said interstices to fill the latter up and is extended further up to the region of the wales on the reverse of the tape thereby forming an integral bond with the wales underlying said fastener elements.
Dependencies are inferred from the claim text.