Fastener tape and fastener stringer

Abstract

The invention provides a fastener tape for a slide fastener, which prevents stretching of an element attaching portion in a tape longitudinal direction while maintaining plasticity possessed by a knitted fabric inherently and has the improved strength of the element attaching portion, wherein a narrow width fastener tape is composed of a warp knitting structure in which an element attaching portion constituted of a plurality of wales is formed by knitting along one side edge of a tape main body portion, the element attaching portion is formed by disposing at least: a warp knitting yarn which runs in a zigzag fashion forming a needle loop across two or more wales adjacent to each other such that the needle loop is entangled with a needle loop of another knitting yarn of every other course on a wale; and a weft in-laid yarn which runs across two or more wales adjacent to each other.

Description

BRIEF DESCRIPTION OF THE DRAWINGS

FIG. 1 is a knitting structure diagram showing an entire warp knitting structure of a fastener tape according to a first embodiment;

FIG. 2 is a knitting structure diagram of each composition knitting yarn for use in the fastener tape;

FIG. 3 is a sectional view schematically showing a section of a fastener stringer configured such that a continuous fastener element row is attached to the fastener tape;

FIG. 4 is a knitting structure diagram of a single cord knitting yarn which may be used in the first embodiment;

FIG. 5 is a knitting structure diagram partially showing a warp knitting structure of a fastener tape according to a modification of the first embodiment;

FIG. 6 is a knitting structure diagram partially showing a warp knitting structure of a fastener tape according to a second embodiment;

FIG. 7 is a sectional view schematically showing a section of a fastener stringer configured such that a continuous fastener element row is attached to the fastener tape;

FIG. 8 is a knitting structure diagram partially showing a warp knitting structure of a fastener tape according to a third embodiment;

FIG. 9 is a knitting structure diagram of each composition yarn for use in the fastener tape; and

FIG. 10 is a knitting structure diagram partially showing a warp knitting structure of a fastener tape according to a fourth embodiment.

Claims

1. A fastener tape which is used for a slide fastener, formed in a narrow width, and composed of a warp knitting structure in which an element attaching portion constituted of a plurality of wales is integrally formed by knitting along one side edge of a tape main body portion, wherein the element attaching portion is formed by disposing at least:a warp knitting yarn which runs in a zigzag fashion forming a needle loop across two or more wales adjacent to each other such that the needle loop is entangled with a needle loop of another knitting yarn of every other course on a wale; anda weft in-laid yarn which runs across two or more wales adjacent to each other.

2. The fastener tape according to claim 1, wherein the element attaching portion is constituted of a knitting structure formed of a tricot knitting yarn, a chain knitting yarn and a single cord knitting yarn.

3. The fastener tape according to claim 2, wherein a sinker loop of the single cord knitting yarn and the weft in-laid yarn cross each other between respective courses of the element attaching portion, and the single cord knitting yarn and the weft in-laid yarn are disposed alternately in a first wale formed on an outermost side of the element attaching portion.

4. The fastener tape according to claim 3, wherein the weft in-laid yarn is inserted across wales which are fewer at least by one than a number of wales over which the single cord knitting yarn runs.

5. The fastener tape according to any one of claims 2 to 4, wherein a warp in-laid yarn is inserted into the element attaching portion.

6. The fastener tape according to claim 1, wherein the element attaching portion is constituted of a knitting structure formed of a tricot knitting yarn, a tricot type two needle stitch knitting yarn, and a chain knitting yarn disposed in part of wales.

7. The fastener tape according to claim 6, wherein a sinker loop of the tricot type two needle stitch knitting yarn and a weft in-laid yarn cross each other between respective courses of the element attaching portion, and the tricot type two needle stitch knitting yarn and the weft in-laid yarn are disposed alternately in a first wale formed on an outermost side of the element attaching portion.

8. The fastener tape according to claim 7, wherein the weft in-laid yarn is inserted across wales which are fewer at least by one than a number of wales over which the tricot type two needle stitch knitting yarn runs.

9. The fastener tape according to any one of claims 6 to 8, wherein a warp in-laid yarn is further inserted into the element attaching portion.

10. A fastener stringer, wherein a fastener element row is attached to the element attaching portion of the fastener tape according to claim 1.

11. The fastener tape according to claim 1, wherein the warp knitting yarn and the weft in-laid yarn are disposed alternately in a first wale formed on an outermost side of the element attaching portion.

12. The fastener tape according to claim 11, wherein the weft in-laid yarn is inserted across wales which are fewer at least by one than a number of wales over which the warp knitting yarn runs.

13. The fastener tape according to claim 11, wherein a warp in-laid yarn is inserted into the element attaching portion.