JPH0754228A - Yarnlike or firmly product - Google Patents

Abstract

PURPOSE:To easily carry out the production of a product and reproduce the production cost without requiring the use of a special sewing machine or a processing machine in sewing or processing by making even a stretchable material retain the stretchability after sewing thereof. CONSTITUTION:This yarn material 1 for sewing is formed of a polyester-based thermoplastic elastomer having stretchability and heat shrinkability. This yarn 2 for sewing is formed by drawing the yarn material 1 into a state near the breakage thereof and the outer peripheral edge of a base fabric for shorts is sewn by using the yarn 2 for sewing. When the shorts are worn, they are heated by the body temperature of the wearer and gradually shrunk. In this state, the moderate stretchability is retained.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a thread-like or film-like product used for producing underwear such as shorts and brassieres.

[0002]

2. Description of the Related Art Conventionally, general non-stretchable threads can be used for sewing with ordinary sewing machines, but threads made of elastic materials such as rubber can be used for sewing with ordinary sewing machines. Since it is not possible, sewing was performed using a special sewing machine that can adjust the balance of thread feed and the sewing speed. Therefore, a stretchable thread such as nylon is sewn using a special sewing machine.

[0003]

However, the stretchable thread sewn with a special sewing machine loses its stretchability after sewing, which makes it inconvenient to wear when finished as underwear.
There was a problem that it did not fit after wearing. In addition, when sewing using a stretchable material, it is necessary to adjust the thread feed using a special sewing machine, which makes sewing work difficult and increases the manufacturing cost. There was a problem of doing.

The present invention has been made by paying attention to such a problem of the prior art. The purpose is to
An object is to provide a thread-like or film-like product which is a stretchable material and retains the stretchability even after sewing. Another object of the present invention is to provide a thread-like or film-like product that does not require the use of a special sewing machine or a processing machine at the time of sewing or processing, can easily manufacture the product, and can reduce the manufacturing cost. .

[0005]

In order to achieve the above object, in the invention of the thread-like or film-like product according to claim 1, it is formed of a thermoplastic elastomer having stretchability and heat shrinkability, It is characterized in that it is stretched to a state near fracture. Further, the invention according to claim 2 is characterized in that the filamentous or film-like product is heated and contracted in a state of maintaining elasticity.

[0006]

The thread-like or film-like product of the present invention is formed of a thermoplastic elastomer having stretchability and heat shrinkability, and is stretched to a state near breakage. for that reason,
The degree of expansion and contraction of thread-shaped or film-shaped products has decreased,
For example, it is possible to sew with a normal sewing machine. Then, the filamentous or film-like product is contracted by the heating by the body temperature or the forced heating by the dryer, and in that state, the elasticity is exhibited by the characteristics of the thermoplastic elastomer.

[0007]

【Example】

(First Embodiment) A first embodiment of the present invention will be described below with reference to FIGS.

As shown in FIG. 1 (a), the thread material 1 used in this embodiment is made of polyester thermoplastic elastomer and has a thickness of 1 mm. As shown in FIG. 1 (b), a sewing thread 2 as a thread-like product is formed by stretching the thread material 1 to a state near its breaking strength, that is, to a state where it is almost fully stretched. The length of this sewing thread 2 is 2-3 times the length of the original thread material 1, and the thickness is 1/2.
It becomes the following. The thickness of the sewing thread 2 can be appropriately selected from 10 to 3300 denier by changing the thickness of the thread material 1. Since the breaking strength of the thread material 1 is 190 kg / cm ² for the thermoplastic polyester elastomer, for example, it is stretched by a force in the range of the strength close to the breaking strength, that is, the strength in the range of 50% of the breaking strength. .

As shown in FIG. 2, the shorts 3 are produced by forming a base cloth 4 of the same thermoplastic polyester elastomer as the sewing thread 2 and sewing the outer peripheral edge of the shorts 3 with the sewing thread 2. There is. The polyester-based thermoplastic elastomer is excellent in properties such as flexibility, stretchability and texture.

When the shorts 3 are sewn, the sewing thread 2 is stretched to a fully stretched state, so that it can be sewn with an ordinary sewing machine. Then, as shown in FIG. 2, the shorts 3 produced.
It is easy to wear because it is formed a little larger. After wearing, the sewing thread 2 is heated by the body temperature of the wearer 5 and gradually shrinks based on the characteristics of the thermoplastic elastomer. Then, as shown in FIG. 3, since it fits snugly to the body and has appropriate elasticity in that state, it is comfortable to wear without feeling any pain.

As described above, in this embodiment, the sewing thread 2 as the thread-like product is made of the thermoplastic elastomer and is stretched to a state near the fracture. Therefore, the degree of expansion and contraction of the sewing thread 2 is regulated to be small, and it is possible to sew with a normal sewing machine. When the shorts 3 sewn with the sewing thread 2 are worn, the sewing thread 2 contracts due to heating by the wearer 5's body temperature, and in addition, good stretchability is exhibited in that state. In addition, since the sewing thread 2 and the base cloth 4 of the shorts 3 are both formed of a thermoplastic polyester elastomer, they are easily regenerated by heating and melting them at a temperature higher than the melting point of the elastomer, for example, 250 ° C. Can be used. (Second Embodiment) Next, another embodiment of the present invention will be described with reference to FIG.

As shown in FIG. 4 (a), the film-shaped material 6 is made of a thermoplastic polyester elastomer and has a thickness of 25 μm. The thickness of the film material 6 is usually adjusted within the range of 10 to 50 μm. Figure 4
As shown in (b), the mounting film 7 as a film-shaped product is stretched to a state where the film-shaped raw material 6 is close to the breaking strength, that is, a state in which the film-shaped material 6 is almost fully stretched so that 1/2 to 1 of the original thickness is obtained. It is thinly formed with a thickness of / 3. Then, the wearing film 7 is bonded to the outer peripheral edge of the base cloth 4 with an adhesive instead of the sewing thread 2 of the shorts 3 described above, whereby the shorts 3 are manufactured.

After wearing the shorts 3 as well, the wearing film 7 shrinks due to the body temperature of the wearer 5, and in that state, appropriate elasticity is exhibited. (Third Embodiment) Still another embodiment of the present invention will be described with reference to FIG.

As shown in FIG. 5 (a), the cloth 8 is pleated. As shown in FIG. 5B, when the edge of the cloth 8 is sewn by a sewing machine, the cloth 8 is sewn with the sewing thread 2 while the end 8a of the cloth 8 is stretched. Thereafter, as shown in FIG. 5 (c), the end of the cloth 8 is heated by a dryer (not shown), whereby the sewing thread 2 contracts, and the pleated state is obtained. The heating temperature by the dryer is 150 to 170 ° C. or lower which is the melting point of the thermoplastic polyester elastomer. Further, it is also possible to sew both longitudinally and laterally with the sewing thread 2 and perform pleat processing in both longitudinal and lateral directions. (Fourth Embodiment) Still another embodiment of the present invention will be described with reference to FIG.

As shown in FIG. 6A, the stockings 9
Is made of a polyester thermoplastic elastomer film and is integrally formed larger than the foot to be worn. Therefore, it is easy to wear the stockings 9 on the feet 10, and there is no possibility that the stockings 9 will break when worn. As shown in FIG. 6 (b), the stocking 9 is heated by the body temperature after being worn, and the stocking 9 contracts to come into close contact with the foot, and also has appropriate elasticity in that state. Therefore, it is excellent in wearing feeling.

The present invention is not limited to the above embodiments, but may be embodied by arbitrarily changing the configuration as described below, for example, within the scope not departing from the spirit of the invention. (1) As a heating means, immersing in hot water in a bath to heat. (2) The thread-like or film-like product of the present invention can be used in bodysuits, panties, pantyhose, bras,
Applicable to underwear and curtains such as blouses and slips. (3) Performing darts processing on non-stretchable materials such as cotton and silk using the thread-like product or film-like product of the present invention. (4) To form a thread-like product into a fabric to form a fabric.
In this case, use threads with different thicknesses in combination. (5) As the thermoplastic elastomer, a polystyrene-based elastomer or the like should be used. (6) The thickness of the film material 6 is 10 to 50 μm for the chest such as a brassiere, 2 mm for the waist such as shorts, 25 to 50 μm for darts blouse, and 25 to 50 for curtains.
It should be 100 μm. The width is the same as the conventional material.

[0017]

As described above in detail, according to the present invention,
It has the following excellent effects. That is, the stretchable material retains the stretchability even after sewing. Also,
It is not necessary to use a special sewing machine or machine at the time of sewing or processing, the product can be easily manufactured, and the manufacturing cost can be reduced.

[Brief description of drawings]

FIG. 1A is a perspective view showing a thread material of a first embodiment embodying the invention, and FIG. 1B is a perspective view showing a thread-shaped product.

FIG. 2 is also a front view showing the shorts according to the first embodiment.

FIG. 3 is a front view showing the operation of the first embodiment.

FIG. 4A is a perspective view showing a film-shaped material of a second embodiment, and FIG. 4B is a perspective view showing a film-shaped product.

5A is a partial perspective view showing a pleated cloth of the third embodiment, FIG. 5B is a partial perspective view showing a state in which an end portion of the cloth is stretched and sewn, and FIG. It is a partial perspective view which shows the state which heated the hair with the dryer and made the yarn shrink.

FIG. 6A is a front view showing a film-shaped product of a fourth embodiment, and FIG. 6B is a front view showing its action.

[Explanation of symbols]

2 ... Sewing thread as a thread product, 7 ... Mounting film as a film product.

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[Submission date] November 2, 1993

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Claims (2)

[Claims] 1. A thread-like or film-like product which is formed of a thermoplastic elastomer having stretchability and heat shrinkability and which is stretched to a state near its fracture. 2. The thread-like or film-like product according to claim 1, wherein the thread-like product or the film-like product is heated to shrink while maintaining elasticity.