JPH03215204A - Touch-and-close type fastener and its manufacture - Google Patents

Abstract

PURPOSE:To offer the title fastener usable for an object with flexibility, by a method wherein a female type of the title fastener is formed of the mixed spinning of warps with flexibility, and loop bodies are composed of pile fabric so as to be along the direction in which the warps are flexible. CONSTITUTION:A flexible band 3 is woven of warps made of spandex fiber with elasticity and wefts made of acrylic fiber, and is stretched as far as a position of a broken line when pulled in the direction of both arrow marks S. On the other hand, when its pulling force is released, the flexible band 3 is contracted in the direction of both arrow marks T. On both ends of such the flexible band 3, the contact face of a female type 1 of the title fastener and the contact face of a male type 2 of the title fastener are located facing to each other, and they are separately sewed and fixed thereon. These contact faces are composed of hooks 2a on the male type 2 of the title fastener and loop bodies 1a on the female type 1 of the title fastener, and a total length of the male type 2 of the title fastener is several times as short as a total length of the female type 1 of the title fastener. On the other hand, no flexibility is provided for the male type 2 of the title fastener and the flexibility in longitudinal direction of the flexible band 3 is provided for the female type 1 of the title fastener.

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial Field of Application] The present invention relates to a hook-and-loop fastener and a method for manufacturing the hook-and-loop fastener.

[Prior art] A hook-and-loop fastener is composed of a male hook-and-loop fastener body in which countless hook bodies are laid, and a female hook-and-loop body in which countless loop bodies are laid. Since it can be easily attached and detached, it is widely used for joining clothing, shoes, miscellaneous goods, etc.

In such conventional hook-and-loop fasteners, due to manufacturing constraints and the original function of hook-and-loop fasteners, the male hook-and-loop body has countless hook bodies, and the female hook-and-loop body has countless loop bodies, which cannot be expanded or contracted. It has no gender.

[Problems to be Solved by the Present Invention] However, as mentioned above, in conventional hook and loop fasteners, both the male hook and loop fastener body and the female hook and loop fastener body do not have elasticity. When using traditional hook-and-loop fasteners for things like
There is a problem in that the male hook-and-loop fastener body and the female hook-and-loop fastener body must be provided at positions suitable for each size.

In addition, there was a problem in that it was not possible to manufacture a female hook and loop fastener body that particularly had elasticity.

Therefore, the present invention has been made in view of the above-mentioned problems, and its object is to provide a three-sided fastener that can be used for stretchable items.

Another object of the present invention is to provide a method for manufacturing a hook-and-loop fastener for manufacturing a female hook-and-loop fastener body having elasticity.

[Means for Solving the Problems] and [Operation] In order to solve the above-mentioned problems and achieve the purpose, the hook-and-loop fastener of the present invention includes a male hook-and-loop fastener body provided with countless hook bodies and a countless number of loop bodies. The female hook-and-loop fastener body of the hook-and-loop fastener is composed of a female hook-and-loop fastener body provided with a female hook-and-loop fastener body, the female hook-and-loop fastener body is formed by blending a warp yarn having elasticity, and the loop body is formed by blending warp threads having elasticity. The loop body is hooked by a hook body provided on the male surface fastener body, while the female surface fastener body functions to expand and contract in the direction of the ground thread.

Further, in the method for manufacturing a hook-and-loop fastener of the present invention, the base yarn held in a stretched state and the yarn body forming the loop body are held simultaneously as the warp yarn group, and the weft yarn is held with respect to the warp yarn group. After weaving at predetermined intervals, the stretched state is released and the loop body is formed by pile weaving.

[Examples] Examples will be described below with reference to the drawings. 1st
The figure shows a female hook-and-loop fastener body 1 and a male hook-and-loop fastener body 2 of an example.
FIG. 3 is an external view showing how the elastic band 3 is provided with the elastic band 3. In this figure, the elastic band 3 shown by the two-dot chain line is provided in the longitudinal direction with elastic spandex fibers as the ground thread,
It is constructed by weaving synthetic fibers such as acrylic fibers as weft threads, and when pulled in the direction of the double arrow S, it stretches to the position shown by the broken line, and when the pulling force is released, it contracts in the direction of the double arrow T.

The female hook-and-loop fastener body 1 and the male hook-and-loop fastener body 2 are sewn and fixed to the ends of the elastic band 3 thus formed, respectively, with their joining surfaces facing each other. This joint surface is composed of countless hook bodies 2a provided on the surface of the male hook-and-loop fastener body 2 and countless loop bodies 1a provided on the surface of the female hook-and-loop fastener body 1. The total length of the elastic band 3 of the male hook-and-loop fastener body 2 along the longitudinal force direction is set to be several times smaller than the total length of the female hook-and-loop fastener body 1. Further, the male surface fastener body 2 does not have elasticity in the direction along the longitudinal force direction of the elastic band 3.

On the other hand, since the female hook and loop fastener body 1 has elasticity in the longitudinal direction of the elastic band 3, when the elastic band 3 is stretched to the position shown by the broken line, the female hook and loop fastener body 1 also moves to the position shown by the broken line. It is designed to extend up to. therefore,
It is not only necessary to provide the male hook-and-loop fastener body 2 and the female hook-and-loop fastener body 1 at positions suitable for each size of the elastic band 3, but also the female hook-and-loop fastener body 1 has the same elastic action as the elastic band 3. Therefore, the elasticity of the elastic band 3 can be effectively applied over the entire length of the elastic band 3. Further, the female surface fastener body 1 can be formed to cover the entire length of the elastic band so as to function as the elastic band 3.

Next, FIG. 2 is an organizational chart for forming the female hook-and-loop fastener body 1, and is a diagram called a Kosen diagram in the textile industry. In this figure, the structure for one stitch is shown, and the vertical row IH to 12H indicates the weft arrangement, and the horizontal row IV to 7
■ indicates the arrangement of the warp groups by the warp yarns, and the white circle W indicates the front-back relationship at the intersection of the weft and warp groups. In this figure, at the intersection point marked with a white circle W, the warp yarns from 1 to 7V appear on the back side of each weft yarn.

Among the warp yarns that are woven in this way, the warp IV is called double covering yarn (DCY), and by wrapping synthetic fibers such as acrylic fibers twice around the outer circumferential surface of the spandex fibers, the entire length of the spandex fibers becomes natural. It has a structure that prevents it from stretching excessively to more than twice its length. This thread specification is shown in FIG. 3, which will be described later.

In addition, warp yarns 2v and 3■ are the front warp of the ground yarn that appears on the front side, and warp yarns 4■ and 5■ are the back warp of the ground yarn that will be the back side, and are made of synthetic fibers such as acrylic fibers. This is shown in FIG. 3, which will be described later.

The warp yarns 6V and 7v are pile yarns that are woven to form the loop body 1a shown in FIG. I have to. These warp threads 6
V and 7■ are made to appear on the back side of the weft in 6 consecutive places at the intersection point where the white circle W is written, and the pile weave is made in these 6 continuous parts to form the loop body 1a. We are trying to form a This warp 6V
The thread specifications for 7 and 7 are shown in Figure 3, which will be described later.

Figure 3 is a yarn specification diagram of the warp and weft yarns shown in the organization chart in Figure 2. consecutive 1
This table summarizes the thread specifications for the book's weft. In the yarn specification diagram, the warp yarn IV is composed of spandex fiber coated with synthetic fiber such as acrylic fiber, as described above.
150 for 840 denier spandex fiber
It is coated with fibers made up of 48 denier fibers. The number of threads to be doubled is one, and the total number of threads is 46.

Next, the warp threads 2 and 3, which are the ground threads, and the warp threads 4 and 5, which are the back warp threads of the ground thread, are composed of two 100-denier fibers, and the number of threads is one. Yes, the number of twists is 75
The total number of wires per inch is 172.

The pile yarns 6■ and 7V forming the loop body are 21
It is a synthetic fiber such as nylon fiber consisting of 7 fibers of 0 denier, the number of threads is 1, the number of twists is 40 threads/inch, and the total number of threads is 123.

On the other hand, the continuous weft yarn is composed of 30 fibers of 150 denier, the number of yarns is 2, no twisting, and the number of yarns is 78 yarns/inch for weaving.

Next, FIG. 4 is a cross-sectional view taken along the line A-A in FIG.
It shows how the weft threads IH to 12H are arranged at approximately equal intervals in the front and back directions.

Moreover, FIG. 5 is a cross-sectional view taken along the line B-B in FIG.
It shows how weft threads IH to 12H are arranged at predetermined intervals in the front and back directions.

FIG. 6 is a cross-sectional view taken along the line C-C in FIG.
It shows how the warp threads 4v are arranged while the weft threads IH to 128 are arranged at predetermined intervals in the front and back directions of (2).

Finally, FIG. 7 is a cross-sectional view taken along the line D-D in FIG. This figure shows how pile yarns with warp yarns of 6cm and 7v are installed.

As explained above based on FIGS. 2 to 7, when the tensioned state of the warp threads forming the female surface fastener body 1 woven while maintaining the state of stretching in the direction of the double arrow S is released, the above-mentioned As a result of the pile yarns of warps 6 and 7 standing up on the back side, a loop body is formed by pile weaving.

FIG. 8 is a sectional view showing a state in which the warp thread 1 is shrunk in the direction of the double arrow T due to the shrinkage effect, and shows how the intervals between the weft threads IH to 12H become narrower.

Next, FIG. 9 is a sectional view showing a state in which the stretched state is released from the sectional view of FIG.
, 7. As a result of the pile yarns moving in the direction of arrow E on the back side, loop bodies are formed. A hook body 2a shown in broken lines is hooked onto the loop body thus formed.

A female surface fastener body 1 having countless loop bodies is formed by sewing hundreds or more of the thus obtained one side parallel to the direction of expansion and contraction. The above-described configuration of the female surface fastener body 1 is only one example, and various warp threads 1 to 6 may be arranged, and the number of warp threads may also be varied.

As explained above, by using the hook-and-loop fastener provided with the female hook-and-loop fastener body of the present invention, stretchability can be ensured over the entire length, such as a belly band or a saboteur. Moreover, instead of the conventional belt-fasteners that are available in large, medium, and small sizes and provided with hook-and-loop fasteners at the ends, it is possible to provide a so-called one-size-fits-all belly band.

Furthermore, the female hook-and-loop fastener body of the hook-and-loop fastener having elasticity can be manufactured efficiently.

[Effects of the Invention] As explained above, the hook-and-loop fastener of the present invention can be used for things that have elasticity.

Further, according to the method for manufacturing a hook-and-loop fastener of the present invention, it is possible to provide a manufacturing method for manufacturing a female hook-and-loop fastener body of a hook-and-loop fastener having elasticity.

[Brief explanation of drawings]

FIG. 1 is an external view showing how the female hook-and-loop fastener body 1 and male hook-and-loop fastener body 2 of the embodiment are provided on the elastic band 3, FIG. 2 is an organization chart for forming the female hook-and-loop fastener body l, Figure 3 is a yarn specification diagram of the warp and weft shown in the organization chart in Figure 2, Figure 4 is a cross-sectional view taken along the line A-A in Figure 2, and Figure 5 is a line BB-B arrow in Figure 2. 6 is a sectional view taken along the line C-C in FIG. 2, FIG. 7 is a sectional view taken along the line D-D in FIG. FIG. 9 is a cross-sectional view showing the compressed state, and FIG. 9 is a cross-sectional view showing the expanded state released from the cross-sectional view of FIG. In the figure, ■... Female hook and loop fastener body, la... Loop body, 2... Male hook and loop fastener body, 2a... Hook body, 3
...Stretch band, 1■~7v...Warp, 1H~12H・
...It is a weft thread. Patent tumor page Yoshiharu Hitoshi Inomata

Claims (2)

[Claims] (1) The female hook-and-loop fastener body of the hook-and-loop fastener is composed of a male hook-and-loop fastener body provided with countless hook bodies and a female hook-and-loop fastener body provided with countless loop bodies, wherein the female hook-and-loop fastener body is expanded and contracted. 1. A hook-and-loop fastener, characterized in that the loop body is formed by blending warp yarns having different properties, and the loop body is constructed by pile weaving along the direction in which the warp yarns expand and contract. (2) The ground yarn held in a stretched state and the yarn body forming the loop body are held as a warp group at the same time as the warp yarns, and after weaving the weft yarns into the warp yarn group at a predetermined interval, 2. The method of manufacturing a hook-and-loop fastener according to claim 1, wherein the loop body is formed by pile weaving after releasing the stretched state.