Ykk Corporation

Mitsutoshi Ishihara

Eiji Nakayama

Toshiaki Takizawa

Mitsuhisa Okawa

Masashi Doi

Yoichi Kondo

The invention provides a knitted surface fastener made of warp knitted fabric, which eliminates necessity of resin coating for fixing a base portion of a pile loop and fusion between yarns, securing flexibility and ventilation proper to knitted fabric wherein, in a base fabric of a surface fastener, wales are formed with at least chain knitting yarns and the respective wales are connected including at least weft in-laid yarns, engaging element loops are formed of first and second engaging element forming yarns striding over two or more wales and the respective engaging element forming yarns are knitted into at least three adjoining courses on a same wale in a zigzag shape, at this time, the first and second engaging element forming yarns are knitted into adjoining same stitches of at least two or more courses of the same wale in the zigzag shape.

Knitted surface fastener

A stretchable warp knitted fabric comprising warp knitting yarns, first weft in-laid yarns and second weft in-laid yarns, and stretchable warp in-laid yarns. The second weft in-laid yarns consist of a plurality of at least non-stretchable yarns, and said second weft in-laid yarns run sequentially and separately in the course direction on different wale regions of the same course with having an arbitrary length respectively, while crossing the first weft in-laid yarns between courses. Consequently, even when pulled in a longitudinal direction, because the separate second weft in-laid yarns influence each other independently, the fabric does not have a great amount of ruffling in a width direction thereof and thus the a flat surface is maintained wherein there is no narrowing in the middle of the longitudinal direction.

Stretchable warp knitted fabric

A knitted surface fastener wherein pile loops are formed by knitting-in pile knitting yarns at the same time when a foundation fabric is knitted with foundation yarns. After the pile knitting yarns which form the pile loops stride between two or more wales to form loops, they are entangled with each stitch of the foundation yarns of three or more adjoining courses on a same wales continuously to form stitches. Of the stitches of the pile knitting yarns formed due to the pile knitting yarns entangled per each of the adjoining three or more courses, at least one or more stitches located in the middle are formed in a closed loop. Consequently, the necessity of back coating is eliminated and further, clearly square gaps are formed to achieve ventilation property and transparency.

The present invention provides a surface fastener wherein necessary engaging strength is maintained for a long term, the surface fastener is flexible and has a favorable touch without prickly feeling even when male engaging elements formed of fibers are employed, and strange peeling noise is not generated. The surface fastener includes at least a large number of male engaging elements planted on a foundation cloth which is a woven or knitted fabric or a non-woven fabric and is formed of fibers, the surface fastener being engaged with and disengaged from a mating surface fastener. The foundation cloth has groups each including a plurality of hook-shaped engaging elements having a small diameter and standing up from a common position of a face of the foundation cloth with respective base end portions of the hook-shaped engaging elements being in adjacent to each other, and the base end portions of the plurality of hook-shaped engaging elements constituting the groups are bonded and integrated by a part of synthetic resin as a backing agent which penetrates the woven or knitted foundation cloth.

Surface fastener formed of fibers

The present invention provides a surface fastener made of a woven/knitted fabric which is extremely thin and flexible. Designs and the like on a rear face side of the fastener can be clearly seen through engaging elements and a substrate. Also, the fastener has a high productivity, thereby allowing a rational price setting. In a surface fastener made of a fiber woven/knitted fabric including a large number of female and/or male engaging elements which are woven simultaneously with weaving of a ground woven/knitted fabric formed of a ground structure and which project from a surface of the woven/knitted fabric, all of warp and weft constituting the ground structure and a yarn constituting the engaging elements are made of monofilament, synthetic resin applied to a rear face of the ground woven/knitted fabric adheres intensively to crossing portions of the monofilaments constituting the warp, the weft, and the engaging elements, and gaps are formed between weaving/knitting structure of the monofilaments constituting the warp, the weft, and the engaging elements.

Growing community of inventors

Toyama-ken, Japan

Mitsutoshi Ishihara