Fastener stringer and slide fastener

    公开(公告)号:US10993509B2

    公开(公告)日:2021-05-04

    申请号:US16709583

    申请日:2019-12-10

    申请人: YKK CORPORATION

    IPC分类号: A44B19/34

    摘要: Fastener stringer may include a knitted fastener tape, and a fastener element attached to the fastener tape. The fastener tape may include a first side-edge portion where the fastener element is provided, a second side-edge portion provided at an opposite side of the first side-edge portion, and a tape main portion provided between the first and second side-edge portions. The first side-edge portion may include one or more chain-stitch yarns formed in one or more wales. The second side-edge portion may not include a chain-stitch yarn. The tape main portion may include M or more chain-stitch yarns formed in M or more wales. M may indicate a natural number equal to or greater than one third of the total number of wales included in the fastener tape. Difference in yarn density may be caused between the tape main portion and the second side-edge portion.