JPS60227703A - Velvet type fastener tape - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

[Detailed Description of the Invention] Industrial Field of Use This invention is applicable to lids for clothes pockets, bags, small rings, etc.
This invention relates to warp-knitted velvet fastener tapes used as fasteners for diaper covers, blood pressure monitor bands, etc.

Conventional technology Two loops are formed in a knitted flat knitted fabric structure using pile yarns made of synthetic resin material such as polypropylene and knitted in the course direction, and then mushroom-shaped engaging members are formed at both ends of the pile yarns. Tape for velvet-type fasteners (Japanese Patent Publication No.
No. 5-2461, Figure 2) also forms two loops of pile yarn made of the same material as the pile yarn described above in the warp knitted fabric structure and knits it into all wales, and then the pile yarn is knitted into all the wales. A velvet-type fastener tape (FIG. 3 of the above-mentioned publication) in which mushroom-shaped engaging members are formed on all wales only at the left end of the tape is known.

Problems to be Solved by the Invention The above-mentioned conventional velpet type fastener chip has the following problems:
In the flat knitted fabric structure (Fig. 2), since pile yarns made of rigid monofilament yarns such as polypropylene are knitted over the entire width of the tape, the flat knitted fabric structure has
Overall, there is no flexibility, so diaper covers,
When used as a fastener that requires flexibility, such as a blood pressure monitor band, various problems have occurred, such as the inability to adapt well to changes in the external shape of the item being used.

In addition, the warp-knitted tape (Fig. 3) has the same flexibility as the flat-knitted tape described above because the rigid polypropylene monofilament pile yarn is woven into all wales. Moreover, since the engaging members (engaging elements) are erected toward the left side of each wale, it is difficult to connect with the other side which has a loop-shaped engaging element to be engaged. In engagement, there are various problems such as the engagement ratio is reduced because the engagement direction is limited, and the engagement force varies depending on the engagement direction.

Means for Solving the Problems The present invention was made to solve the problems of the prior art described above, and it consists of a plurality of wale constituent yarns that constitute a plurality of wales that extend in the longitudinal direction, and a wale that extends in the width direction. A flexible base fabric made of multifilament yarn of synthetic fiber, and a knitting yarn woven into the wale of the base fabric, and the knitting yarn is made of rigid thermoplastic monofilament. It is a yarn and is knitted every 1 to 3 wales, and a hook-shaped or mushroom-shaped engagement element is formed at the upper end of the sinker loose of the knitting yarn that stands up from the ground structure, The engagement element is a velvet fastener tape formed so as to be inclined alternately in the left-right direction with respect to each wale in which the engagement element is woven.

Example Hereinafter, embodiments of the present invention will be described in detail based on the drawings.

FIG. 1 is a structural diagram showing a tape T provided with mushroom-like engaging elements 15.

The tape T has a ground weave consisting of horizontally inserted yarns 1 (or 5) of multifilament yarns made of synthetic fibers, chain stitches 2 (or 4), and tricot stitches 6 (or 7), and has a mushroom-shaped engagement element 15. It has a structure in which chain stitches 3 made of rigid thermoplastic monofilament yarn are included in every other wale.

In other words, the structure is a combination of the upper part and the lower part in FIG.

As shown in FIG. 6, the chain stitch 3 constituting the engaging element 15
The wale W1 containing is the needle loop 3b1 of this chain stitch 3, the loop 6a of the tricot stitch 6 (7), and the loop 6a of the chain stitch 2.
The wale 2a has a triple loop configuration, and the wale without the chain stitch 3 has a double loop configuration.

Therefore, it is preferable to insert a chain ring made of another thread into the wale Wo that does not include the chain stitch 3 constituting the engagement element 15 to obtain a tape with a uniform density. Further, in FIG. 1, the chain stitch 3 constituting the engaging element 15 is composed of a double chain in which two threads are aligned, but a single chain stitch is also possible.

The sinker loop 3a of the chain stitch 3 is cut at its center to obtain a tape material separated into two base structures 10a and 10b, and at the same time, a piece of upright yarn is formed. This upright piece of thermoplastic monofilament yarn is prepared by a well-known method.
For example, the head is melted by a heater placed above to form a mushroom-shaped engagement element 15, or the upper end is bent to form a hook-shaped engagement element by heating with a heater and applying wind pressure. Form element 15.

The engaging elements 15 are formed so as to alternately incline in a zigzag shape in the left-right direction with respect to each of the woven wales. Note that the engagement elements can also be formed every other loop.

Figure 2 is a pattern diagram showing a double knitted fabric according to an example, and the ground texture on one side is made of 1 horizontally inserted yarn (88100100/88).
and chain stitch 2 (02/22/20100), and the ground texture on the other side is chain stitch 4 (00102/22/20)
) and a horizontal insertion thread 5 (88/88100100). Monofilament yarn chain stitch 3 (0210
2102102) is woven across the fabric on both sides.

3 to 5 show examples of the structure of the chain stitch 3.

Figure 3 shows chain stitch 3 knitted every other wale.
Figure 4 shows a pattern knitted every 2 wales, and Figure 5 shows a chain stitch 3' that spans between 2 wales with both side fabrics.
An example of (22/24/20/20) is shown.

Functions and Effects of the Invention The velvet fastener tape of the present invention has a highly flexible base structure consisting of wale constituent yarns made of multifilament synthetic fibers and horizontal insertion yarns, and one knitted yarn of thermoplastic monofilament yarn. ~Since the knitting is performed every three wales and a mushroom-shaped or hook-shaped engagement element is formed at the upper end of the upright yarn piece formed by cutting the sinker loose of the knitting yarn, among the characteristics of the warp knitted material, In particular, the characteristics that are particularly effective in the tape for zippered zippers are effectively utilized, that is, they are extremely flexible, so they can be used as fasteners for diaper covers, blood pressure monitor tapes, clothing pockets, bag lids, etc. When used as an object, it adapts well to the change in the external shape of the object and does not give any discomfort at all.Since the engaging element is made of a knitting yarn having a stitch loop, the tension of the loop element causes the engaging element to It is highly durable because it does not fall out of the ground structure or deform, and in addition, it is highly flexible because engaging elements are formed every 1 to 3 wales, and the density of the engaging elements is low. This has the effect of increasing the engagement force and ensuring positive engagement with the loop element.

In addition, since the engaging elements are provided so as to be inclined in a zigzag shape alternately in the left and right direction with respect to each wale in which they are woven, the engaging elements are not formed in a fixed direction like the conventional ones. Compared to the previous version, it can be engaged with the other side having a loop-shaped engagement element in all directions, so it has excellent effects such as greatly improving the power detection rate as a Velpet type fan and further strengthening the engagement force. It is something.

[Brief explanation of the drawing]

FIG. 1 is a structural diagram showing one embodiment of the tape for Velpet type fasteners of the present invention, FIG. 2 is a diagram of its structure pattern, and FIGS. 3, 4, and 5 are each a monofilament chain. Pattern diagrams showing three examples of knitting, and FIG. 6 is a longitudinal sectional side view of a double knitted fabric. 1.5 Weft insertion yarn, 2, 4... Chain stitch (wale constituent yarn), 3, 3'... Knitting yarn made of thermoplastic monofilament, 3a... Sinker loop of knitting yarn 3, 15...・Engagement element. Patent applicant Yoshida Kogyo Co., Ltd. Agent Patent attorney Sadao Ikeya

Claims (1)

[Claims] The wale constituent yarns constituting a plurality of wales extending in the longitudinal direction and the insertion yarns connecting the wales in the width direction are woven into a flexible ground structure made of multifilament yarn of synthetic fibers, and into the wales of the ground structure. The knitting yarn is a rigid thermoplastic monofilament yarn and is knitted every 1 to 3 wales, and the sinker loose of the knitting yarn is erected from the ground structure. A hook-shaped or mushroom-shaped engagement element is formed at the upper end, and the engagement element is formed to be inclined alternately in the left and right direction with respect to each wale in which it is woven. Bell-bent zipper tape with features 5.