Patent ID: 6886368

Claim:
A warp knitted narrow width tape for a slide fastener comprising: a plurality of wales extended in parallel along a length direction of the tape, wherein the wales are divided into a first group of the wales having at least two of the wales, the first group of wales being associated with a fastener element attaching portion of the tape disposed along a side edge of the tape and extending in a width direction, and a remaining group of the wales being associated with a tape main body adjacent to the fastener element attaching portion of the tape; one or more first knitting yarns disposed across adjoining wales in the first group of wales; a second knitting yarn on each of the wales in the first group of wales, the second knitting yarn and the one or more first knitting yarns being entangled; and one or more other knitting yarns composing the warp knitted tape associated with the tape main body; wherein a dry heat shrinkage ratio of the one or more first knitting yarns and the second knitting yarn is set lower than a dry heat shrinkage ratio of the one or more other knitting yarns composing the warp knitted tape.