JPH11192109A - Welding method of fastener and clothes, and clothes with fastener - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a welding method, and clothes with a fastener capable of uniformly and finely welding clothes and a thick fastener. SOLUTION: The closely contacting surface 24 of the end part of a welding tool 10 is closely brought into contact with clothes 11a and the end part of a fastener 11b along a constant length h, and also is moved in the direction of the length h. Thereby, melting is carried out by increasing the generation of heat at the superposed part 26. The welding tool 10 is vibrated in a ultrasonic frequency or in the frequency near to it.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method of welding a fabric and a fastener to each other, and a zippered fabric obtained by the method.

[0002]

2. Description of the Related Art Fasteners are used as tools for forming parts that can be freely attached and detached or opened and closed in clothing, accessories, handicrafts and the like. Further, hook-and-loop fasteners are widely used for abdominal bands, blood pressure monitors, shoes including sports shoes, sportswear, helmets, tents, gloves, and the like, in addition to conventional fastener applications. Products with hook-and-loop fasteners can be easily attached and detached, opened and closed, or removed in a short time, and are very efficient and convenient to use.

As a method of joining the fastener, a method of sewing by hand sewing or sewing on a cloth or a method of directly bonding the cloth with a surface of the hook-and-loop fastener having no engaging / removing member with an adhesive or the like is often used. .

[0004]

[Problems to be solved by the invention]

[0005] However, when seams are joined together, wrinkles may be formed at the joints or seams may be seen, which may be undesirable in appearance. In addition, joining by hand sewing was a very laborious operation. Joining by sewing is a dangerous operation because the sewing needle is reciprocated at high speed. Furthermore, although the method of bonding with an adhesive or the like is simple, the adhesive surface between the fastener and the fabric is easily peeled off, and the finished product includes a portion where a large thickness is formed due to the overlap of the fastener and the fabric. Often the comfort, touch, or feel was poor.

The inventors of the present invention have conducted intensive studies to solve such problems, and as a result, have reached the present invention.

[0007]

The gist of the method for welding a fastener and a fabric according to the present invention is to overlap a portion near the end of the fabric with a portion near the end of the fastener, and apply a welding tool to the overlapped portion. Is moved along the direction of the end while pressing, so that the end of the fabric and the end of the fastener are welded.

In this welding method, the welding tool is brought into close contact with the fabric and the fastener over a predetermined length, and is vibrated at an ultrasonic frequency or a frequency close to the ultrasonic frequency in the length direction. is there.

The gist of the zippered fabric according to the present invention is that the end of the zipper and the end of the zipper are welded to each other.

[0010] In such a zipper-attached fabric, the fastener is a hook-and-loop fastener.

[0011]

DETAILED DESCRIPTION OF THE INVENTION The term "surface fastener" of the present invention is a fastener that connects two plastic parts formed by two supports having members that can be disengaged from each other. One of the supports has a large number of hooks, mushroom-shaped small pieces, etc. on its surface, and the other support has a large number of loops. In some cases, they have the same surface that is detachable. Normal,
The loops, hooks, or small pieces provided on the surface of the support of the hook-and-loop fastener are arranged in regularly spaced rows. The material of the “fastener” or “surface fastener” used in the present invention is not particularly limited. For example, any fastener made from materials such as natural fibers, synthetic fibers, or semi-synthetic fibers may be used. Preferably, a fastener made of a thermoplastic material is used.

The term "fabric" in the present invention has a broad meaning including a woven fabric made of any material such as synthetic fibers such as polypropylene, nylon, polyester and vinyl chloride, a semi-synthetic fiber and a natural fiber, as well as a nonwoven fabric. It is. However, a woven fabric made of a thermoplastic material is preferable because a thermoplastic fabric is easily welded. The thickness of the fabric is not particularly limited, and may be about 0.05 to 1.0 mm. Preferably, it is about 0.1 to 0.5 mm. A cloth obtained by welding or stitching two or more different cloth cuts is also included in the “fabric” of the present invention.

The term “cloth with zipper” according to the present invention means:
A fabric with a zipper on either end. Or the case where two or more cloth cuts are connected with a fastener is included.

As used herein, the term "cloth product with zipper" refers to clothing including a zipper at any site, a blood pressure monitor, gloves, a helmet, shoes such as sports shoes, and the like.
It refers to all products including interior products such as entrance mats and curtains, zippered fabric parts such as bags, car belts, and tents.

According to the welding method of the present invention, first, the vicinity of the end of the fabric and the vicinity of the end of the fastener are overlapped.
When the fastener is a hook-and-loop fastener, a loop, a hook, or a portion provided with a member capable of disengaging the fastener from the front side of the fabric by adjusting the gap between the rows of small pieces to be a welded portion, or It is preferable that the vicinity of the end of the fabric and the vicinity of the end of the fastener are overlapped so that the opposite side having no member is opposed to the other side. However, the positional relationship between the fabric and the fastener is not particularly limited as long as the vicinity of the end of the fabric and the vicinity of the end of the fastener are overlapped. Next, the overlapping portions are joined. There are various joining methods, and as an example, there is a joining method by welding. That is, a welding tool is pressed against the overlapping portion, and the welding tool is brought into close contact with the fabric over a certain length.

Examples of the welding tool used at this time include a vibration welding tool, an electric iron, a dressing iron or a Japanese ironing iron, and the like. However, the welding tool is not particularly limited as long as it can generate heat at the overlapping portion of the fabric to raise the temperature and melt the fabric.

The vibration welding tool is vibrated at an ultrasonic frequency or a frequency close to the ultrasonic frequency in its length direction while being in close contact with the fabric over a certain length. In this aspect, when the welding tool is vibrated, a load is repeatedly applied to the overlapped portion, and the generation of distortion is repeated according to the vibration at the ultrasonic frequency or the like. Since the occurrence of distortion is repeated according to the vibration at the ultrasonic frequency, etc.,
The overlapping portion generates heat rapidly and melts. Here, since the welding tool is in close contact with the fabric and the fastener over a certain length, the frictional resistance between the welding tool and the overlapping portion is large, and it is difficult for the welding tool to slip together. The loss of the required repeated load is small. Since the loss of the repeated load applied from the welding tool to the overlapping portion is small, the heat generated in the overlapping portion is large. Since the heat generated in the overlapping portion is large, the overlapping portion melts even if the fabric is somewhat thick. Also, because the welding tool is in close contact with the fabric over a certain length,
The frictional heat between the welding tool and the overlapping portion is large, and the overlapping portion is easily melted.

In the case of using an electric iron or iron for dressmaking or dressmaking, the welding tool is directly heated to a high temperature.
By pressing the tool, the overlapped portion generates heat rapidly and melts. Here, since the welding tool is brought into close contact with the cloth and the fastener over a certain length, the heat generated in the overlapping portion increases. Further, since the welding tool is kept in close contact with the fabric over a certain length, the overlapped portion is easily melted. As described above, the welding tool is moved along the direction of the ends of the fabric and the fastener while welding the overlapping surfaces together, so that the end of the fabric and the end of the fastener are welded. Since the welded portion is cut off at the same time as the welding, a portion closer to the end than the welded portion is cut off.

The overlapping portion is easily melted, and the welded portion is easily melted. Because the welded part is easily melted, the part closer to the end than the welded part, as the welding tool moves,
It is cut off along the moving direction.

[0020] After joining the vicinity of the ends by welding in this way, when the whole is turned back, a beautifully finished zippered fabric having no unevenness at the joint can be obtained. This zippered fabric can be used as it is for a fabric product. If higher strength is desired, another harder cloth or sheet-like material may be applied across the seam between the fastener and the fabric to reinforce the seam between the fastener and the fabric and be used in the manufacture of fabric products.

[0021]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Embodiments of a method for welding a fastener and a fabric according to the present invention, a fabric with a fastener, and a fabric product with a fastener using the same will be described in detail with reference to the drawings.

In FIG. 1, reference numeral 10 denotes an example of a welding tool used for welding according to the present invention.
The welding tool welds the ends of the cloth 11a and the fastener 11b by moving the cloth 11a while pressing it against ultrasonic vibration. This welding tool 10 is shown in FIG.
As shown in (a) and (b), it extends from the rear end portion 12 in a circular cross section of a constant diameter D1, and extends from the vicinity of the intermediate portion 14 to the front end portion 16.
And a constant diameter D1 up to the tip 16
It has an overall shape that extends in a circular cross section. Further, a bolt 18 is provided at the rear end portion 12, and the vibration device 2 is provided.
It can be fixed to zero. On the other hand, the distal end portion 16 is provided with a distal end tip 22 which is in direct contact with the cloth 11a and the fastener 11b. This tip 22
Is a constant length h, as shown in FIGS. 1 (c) and (d).
And a contact surface 24 that is in close contact with the cloth 11a and the fastener 11b.

The specific dimensions of the welding tool 10 are a length L of about 95 mm, a rear end diameter D1 of about 28 mm, a front end diameter D2 of about 10 mm, and a contact surface length h of about 3 mm. Although the size and shape of the welding tool 10 are not particularly limited, as a result of actually welding the cloth 11a and the fastener 11b with the welding tool 10 having the above-described size and shape,
Welded evenly. Also, no wrinkles were generated at the welded portion, and the welded surface was clean.

The fabric 11a using such a welding tool 10
Welding of the ends of the zipper 11 and the fastener 11b,
Near the end 28a of the fastener 1a and the end 28b of the fastener 11b
The neighborhood is superimposed. In a state where the vicinity of the end portion 28a of the cloth 11a and the vicinity of the end portion 28b of the fastener 11b are overlapped, the tip 22 of the welding tool 10 is pressed against the overlap portion 26, and the contact surface 24 has a fixed length h.
Over the fabric 11a. When the vibrating device 20 is operated in a state where the contact surface 24 is kept in close contact with the cloth 11a over a certain length h, the length h
The welding tool 10 is ultrasonically vibrated in the direction.

When the welding tool 10 is ultrasonically vibrated, a repetitive load of the ultrasonic frequency is applied in the length h direction in the overlapping portion 26, and a distortion corresponding to the amplitude of the ultrasonic vibration is generated in the overlapping portion 26. Is repeated.
Since the occurrence of distortion is repeated at the frequency of ultrasonic vibration,
The overlapping portion 26 generates heat rapidly and melts. here,
Since the contact surface 24 is in close contact with the cloth 11a over a certain length h, the frictional resistance between the welding tool 10 and the overlapping portion 26 is large, and
The rate at which the repeated load applied to 6 is lost due to slippage is small. Since the loss of the repeated load is small, the heat generated in the overlapping portion 26 is large. Superposition section 26
, The overlapping portion 26 is melted even if the cloth 11a and the fastener 11b are somewhat thick.
Further, since the contact surface 26 is in close contact with the cloth 11a over a certain length h, the frictional heat between the welding tool 10 and the overlapping portion 26 is large, and the overlapping portion 26 is easily melted.

When the overlapping portion 26 is melted,
The superposed surfaces approach each other to the extent that the bonding force between the molecules of the fabric 11 can reach, assimilation acts on the superposed surfaces, and the superposed surfaces are welded. The welding tool 10 is moved by the vibration device 20 along the direction of the end portion 28 of the fabric 11 while welding the overlapping surfaces in this manner, so that the fabric 11a and the fastener 11b are welded. . Since the welded portion is melted, it is cut off at the same time as the welded portion, and a portion closer to the end 28 than the welded portion is cut off.

According to the welding method of the present invention, the tip 22 of the welding tool 10 is brought into close contact over a predetermined length h, so that the frictional force is increased and the overlapping portion 26 can be easily melted. it can. For this reason, even if the cloth 11a and the fastener 11b are somewhat thick, the ends thereof can be welded to each other. In addition, as a result of actually performing the welding by the welding method according to the present invention, the welds could be uniformly welded, and the welded portions could be welded neatly without wrinkles. Since a straight fusion surface was obtained and there was no portion where the cloth and the zipper overlapped at the joint, the appearance and feel of the joint were good, unlike the conventional method. FIG. 2 shows a zippered fabric formed by joining one end of the polyester fabric and the hook-and-loop fastener in this manner.

Further, the both ends of the hook-and-loop fastener were joined to a fabric made of polyester, and a fabric with a fastener of the present invention was formed, in which the hook-and-loop fastener was sandwiched between the both ends of the fabric. One embodiment is shown in FIG. Fasteners sewn together by a normal method have a protruding zipper portion due to an overlapping portion of a seam allowance between the fabric and the zipper, resulting in poor appearance and tactile sensation. However, in the embodiment shown in FIG.
There is almost no overlap between the fabric 34 and the fastener 32, and a flat appearance and tactile sensation can be realized at the joint.

By appropriately pressing an iron on the zippered fabric, the seam between the fabric and the zipper can be flattened, and the appearance and touch can be further beautifully and comfortably finished.

As described above, after the end of one or more fabrics is joined to the end of one fastener, or after the ends of the fastener are joined to the ends of two or more fabrics, At least, it is also possible to increase the strength of the joint by attaching a sheet for reinforcement so as to straddle the joint between the fastener and the fabric. Usually, the fastener portion is a portion directly involved in the engagement and disengagement, and a strong force is continuously applied. For this reason, it is preferable to use such a reinforcing sheet so that a strong force is applied to the cloth and the fastener, or the fabric and the end of the fastener are not separated from each other even after long-term use. Such an embodiment is shown in FIG. A reinforcing sheet 46 is attached to the back side of the zipper-attached fabric in which the fastener 42 is joined to the fabric 44 by an adhesive.

According to the present invention, the joining of the fabric and the hook-and-loop fastener becomes easy unlike the sewing. Therefore, even when the width of the hook-and-loop fastener is small, it can be easily attached to the fabric. As shown in FIG. 5, even when the row of the hook members or loops of the fastener 52 is only one row, two
4 can be connected neatly.

In this manner, the zipper-attached fabric in which the fabric is joined to both ends of the hook-and-loop fastener is sewn or joined so that the plastic portions of the fastener face each other, thereby producing a zipper-attached fabric product. The plastic part of the fastener is a pair of a hook member such as a hook or a mushroom-shaped small piece and a loop part for receiving the hook member so that the engagement and disengagement can be freely performed. Alternatively, it is also possible to use a fastener having a surface that can be engaged and disengaged by the same member, and to make a pair by facing the same surface. FIG. 6 is a diagram in which both ends of a fastener having a hook-shaped hooking member 62 and a loop member 66 for receiving the hook-shaped hooking member on the surface thereof are respectively joined to cloth cuttings 64 and 68, and a pair is faced to each other.

Next, in FIG. 7A, reference numeral 70 denotes a zipper-equipped cloth product (accessory) prepared using the zipper-equipped cloth according to the present invention. The material fabric of the zipper-equipped cloth product 70 is made up of the front side of the cloth 72 and the zipper 74.
After welding and joining the ends with the disengagement members facing each other, a backing is attached and welded to the entire back surface. This was welded and joined in a bag shape so that the hook-and-loop fasteners could face each other and open and close freely, to produce a zipper-attached fabric product 70. FIG. 7B shows a cross section of the opening / closing portion of the zipper-attached fabric product 70 provided with the fastener facing each other. In the opening and closing part, the joint between the fabric and the fastener is uniformly welded, there is no wrinkle at the joint, and there is no overlapping part of the fabric and the fastener at the joint, so the feel and appearance are good. there were. The fastener-attached cloth product had a good feeling of use because even if small articles or coins were put in, there was no risk of the joint part being peeled off and broken, and the engagement between the hook-and-loop fasteners was good.

Although the embodiment of the present invention has been described above, the method for welding a cloth and a fastener according to the present invention and the cloth with a fastener can be carried out in other modes. It is not limited to the welding method and the zippered fabric. For example, the welding tool used for welding the fastener and the fabric of the present invention is not limited to the above-described shape, and a tool that can perform ultrasonic vibration substantially similar to the above-described welding tool, a process for welding the fabric, such as an electric iron, etc. Is fine. The frequency at which the welding tool is vibrated is 2
It is not limited to the ultrasonic frequency exceeding 0000 Hz,
A frequency close to an ultrasonic wave of about 00 Hz may be used. In addition, the cloth with the zipper, in addition to the accessory case of the embodiment, clothes,
It can be used in the manufacture of shoes, tents, bags, sportswear, helmets and the like. In addition, the present invention can be practiced in various modified, modified, and modified embodiments based on the knowledge of those skilled in the art without departing from the spirit thereof.

[0035]

According to the welding method of the present invention, the vicinity of the end of one fabric and the vicinity of the end of the fastener are overlapped,
The welding tool is brought into close contact with the fabric over a certain length, and is moved along the length direction to fuse the end of the fastener and the end of the fabric, thereby welding the ends together. it can. In a particularly preferred embodiment, the welding tool is vibrated at an ultrasonic frequency or a frequency close to the ultrasonic frequency, so that the amount of heat generated in the overlapping portion can be increased. For this reason, even if the fabric and the fastener are thick to some extent, the overlapped portion can be melted and the ends thereof can be welded.

Further, as a result of actually performing the welding by the welding method according to the present invention, it was possible to uniformly weld the fabric and the end portions of the fastener. Also, no wrinkles were generated at the welded portion between the end portions of the fabric and the fastener, the weld could be welded cleanly, and a straight welded cross section could be obtained. The obtained zipper-attached fabric had no overlapping portion between the zipper and the fabric, and it was possible to obtain the result that the appearance and the touch were favorable.

Further, according to the welding method of the present invention, the seam allowance required for sewing the fabric and the fastener becomes unnecessary,
Even a small hook-and-loop fastener can be easily attached to the fabric.

The zippered fabric obtained by the welding method according to the present invention has a good appearance and tactile sensation, and is suitable for the production of comfortable fabric products.

[Brief description of the drawings]

FIG. 1 is a view showing an example of a tool for carrying out a welding method according to the present invention, wherein FIG. 1 (a) is a front view, FIG. 1 (b) is a side view, and FIG. An enlarged front view, and FIG. 2D is an enlarged side view of a main part.

FIG. 2 is a view showing an embodiment of a fabric manufactured using the welding method according to the present invention. FIG. 1A is a plan view, and FIG. 1B is a cross-sectional view.

FIG. 3 is a cross-sectional view of a zippered fabric manufactured using the welding method according to the present invention.

FIG. 4 is a cross-sectional view of a zippered fabric provided with a reinforcing sheet manufactured using the welding method according to the present invention.

FIG. 5 is a cross-sectional view of a zippered fabric manufactured using the welding method according to the present invention and joined with fasteners having a row of hook members.

FIG. 6 is a diagram showing a pair of zippered fabrics manufactured using the welding method according to the present invention.

FIG. 7 is a view showing an example of a fabric product manufactured by using the welding method according to the present invention. 1A is a perspective view, and FIG. 1B is a cross-sectional view.

[Explanation of symbols]

10; welding tool 11a, 34, 44, 54, 64, 68, 74; cloth 11b, 32, 42, 52, 62, 66, 72; fastener 46; reinforcing sheet 48; adhesive 70;

[Procedure amendment]

[Submission date] March 9, 1998

[Procedure amendment 1]

[Document name to be amended] Drawing

[Correction target item name] All figures

[Correction method] Change

[Correction contents]

FIG.

FIG. 2

FIG. 3

FIG. 4

FIG. 5

FIG. 6

FIG. 7

Claims (4)

[Claims] 1. An end portion of a fastener and an end portion of a fabric are overlapped with each other near an end portion of the fabric and moved along the end portion while pressing a welding tool against the overlapped portion. A method for welding a fastener to a fabric, comprising welding an end of the fastener. 2. The welding method, wherein the welding tool is brought into close contact with a fabric and a fastener over a predetermined length,
The method for welding a fastener to a fabric according to claim 1, wherein the vibration is performed at an ultrasonic frequency or a frequency close to the ultrasonic frequency in the length direction. 3. A zippered fabric, wherein the end of the fabric and the end of the zipper are welded flush. 4. The fastener-attached fabric according to claim 3, wherein the fastener is a hook-and-loop fastener.