Slide fastener stringer
AssigneeYoshida Kogyo K.K.
InventorYoshio Matsuda
Life of this patent
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Abstract
A slide fastener stringer includes a warp-knit stringer tape comprising a first set of yarns forming a knit ground structure containing stitch loops in every course and wale of the tape, and a second set of yarns knit in the ground structure and each extending coursewise across at least one wale, the yarns of second set comprising textured yarns. A third set of yarns forms a plurality of chains of loops knit in the ground structure and extending along wales in at least one edge portion of the tape. A fourth set of yarns is laid in the ground structure and extends in and along the wales in the tape edge portion, on which a row of coupling elements is mounted. With the stringer tape thus constructed, the tape edge portion is tight and resistant to walewise stretch and the remainder portion is relatively coarse and roughened.
Claims7
A slide fastener stringer comprising:
- (a) a warp-knit stringer tape having a pair of spaced edge portions and a central portion extending between said edge portions, said stringer tape comprising:
- (1) a first set of yarns forming a first knit ground structure containing stitch loops in every course and wale of said tape;
- (2) a second set of yarns knit in said first ground structure and each extending coursewise across at least one wale, said yarns of the second set comprising textured yarns and forming a second knit ground structure containing stitch loops in every wale of the tape other than said one wale, said central portion consisting of said first set of yarns and said second set of yarns;
- (3) a third set of yarns forming a plurality of chains of loops knit in said first and second ground structures and extending along wales in at least one of said edge portions;
- and
- (4) a fourth set of yarns laid in said first and second ground structures and extending in and along said last-named wales;
- and
- (b) a row of coupling elements mounted on and along said one of the edge portions of the tape.
Dependencies are inferred from the claim text.