| 摘要 |
A slide fastener comprises a reinforcement strip fixed to at least one surface of each stringer tape of nonwoven sheet material along its one longitudinal edge to which a row of coupling elements is attached by sewing stitches. The stringer tape is made of thermoplastic synthetic resin, and the reinforcement strip comprises a film of thermoplastic synthetic resin fused with or otherwise bonded to the stringer tape so as to form a reinforced longitudinal edge of the stringer tape. The reinforced longitudinal edge has an increased mechanical strength for protection against forces tending to tear apart the stringer tape along the sewing stitches. The reinforcement strips jointly have a transverse width larger than the width of a slider to protect the stringer tape from being worn away due to frictional engagement with a slider during use of the slide fastener. |
