JP6339522B2 - Compression wear - Google Patents

Description

  The present invention relates to a clothing material that is used as, for example, innerwear or sportswear and fits to the body when worn, and particularly to a clothing material that generates heat when stretched.

  Clothing worn close to the surface of the human body during exercise removes fatigue-causing substances such as lactic acid from the muscle more quickly, in addition to improving the motor function and preventing the occurrence of disability. It is said that it has the effect of reducing or preventing the disease, and has been favored by many people.

Recently, in addition to the compression effect or the compression effect, as shown in Patent Documents 1 to 3, for example, a material that generates heat as the material expands has been proposed.
As materials that generate heat up to that point, fabric materials in which moisture-absorbing heat-generating fibers such as cellulose are mixed are known, and those that generate heat by insensitive steaming or sweating from the human body when worn are known. However, if the moisture absorption amount of the fiber reaches saturation, the moisture absorption heat generation fiber cannot generate heat beyond that, and after the moisture absorption amount reaches saturation, it may feel cold due to moisture in the fiber. It was pointed out.
On the other hand, the extension heat-generating material disclosed in Patent Document 1 and the like is said to be able to generate heat as long as it repeatedly expands and contracts, and by applying this to clothes such as sportswear, heat retention is Of course, it can be expected to prevent injuries by warming stretched parts such as muscles.

JP 2011-195970 A JP 2012-1112078 A JP 2014-198914 A

However, as described in Patent Literature 1 to Patent Literature 3, it is assumed that the material that generates heat by extension is a knitted fabric composed of an inelastic yarn and an elastic yarn. Is narrow. In addition, in order to generate heat only at a specific part of the coating, the part and its surroundings must be made of different substrates, and a seam appears at the boundary part.
Then, an object of this invention is to provide the clothing material which can selectively heat-extend the specific site | part of arbitrary base materials without providing a seam, and a coating | cover using the same.

The compression wear of the present invention made for this purpose is a material body formed of stretchable fabric, a printed layer applied to at least a part of at least one surface of the front and back of the material body, The printed layer includes a base and crystal particles as piezoelectric particles held by the base.
In the compression wear of the present invention, crystal particles as piezoelectric particles are dispersed at the base of the print layer, and a voltage is generated because pressure is applied to the piezoelectric particles as the material body expands, and heat is generated accordingly. Therefore, it is possible to selectively heat only a specific portion of the covering material on which the printed layer is applied. In addition, since the printed layer holds the piezoelectric particles, no seam appears.

The amount of the piezoelectric particles dispersed in the print layer is not sufficient amount of heat generation can be obtained too little. Moreover, when it is too much, in addition to pushing up the price, the elasticity of the base is lowered and it tends to be raised on the surface of the base. Although depending on the material of the piezoelectric body to be used, in consideration of the above, it is 0.5 to 5 % by volume, more preferably 1.0 to 3.0% by volume with respect to the entire printed layer.
The base is preferably provided with elasticity according to the material body having elasticity, and most preferably silicone rubber is used.

The present invention provides compression wear, and is applied to a compression shirt or compression pants.
When the compression wear is compression pants, the printed layer includes a first printed layer that surrounds the patella, a second printed layer from the gluteal muscle to the iliac ligament, and a third printed layer along the biceps femoris. At least one of a print layer and a fourth print layer from the Achilles tendon to the triceps surae may be provided.
In the case where the compression wear is a compression shirt, the print layer includes a first print layer provided so as to surround the deltoid muscle, a second print layer provided around the trapezius muscle, along the elbow, the third printed layer that is provided on the periphery of the arm Tou muscle and elbow muscle, and may comprise at least one fourth printing layer provided along the latissimus dorsi.

  According to the present invention, the piezoelectric particles are dispersed at the base of the print layer, and the pressure is applied to the piezoelectric particles as the material main body expands, so that a voltage is generated and heat is generated accordingly. Among them, only a specific portion where the print layer is applied can be selectively heated. In addition, since the printed layer holds the piezoelectric particles, no seam appears.

It is a figure which shows typically the cross section of the raw material for clothes in this Embodiment. The lower half body wear of the compression wear concerning this Embodiment is shown, (a) is a front view, (b) is a rear view. The upper half body wearing of the compression wear concerning this Embodiment is shown, (a) is a front view, (b) is a rear view. It is a figure which shows the result of having confirmed the heat_generation | fever condition after holding and extending | stretching the lower half body wear of the compression wear concerning this Embodiment with a hand. It is a figure which shows the result of having confirmed the heat_generation | fever condition after wearing the lower body wear of the compression wear concerning this Embodiment and exercising with thermography. It is a figure which shows the result of having confirmed the heat_generation | fever condition after wearing and wearing the upper body of the compression wear concerning this Embodiment by thermography.

Hereinafter, the present invention will be described in detail based on embodiments shown in the accompanying drawings.
First, the structure of the clothing material 1 in the present embodiment will be described with reference to FIG.
The clothing material 1 includes a material body 3 and a print layer 5 applied to one surface of the material body 3.

The material main body 3 is formed of a stretchable fabric, and for example, a 2-way tricot, a pair tengu, or the like can be used. In addition, these fabrics preferably have air permeability and quick drying properties, and preferably can cut ultraviolet rays.
The material main body 3 having elasticity is in close contact with the wearer's body and applies pressure so as to tighten the body and suppress muscle vibration, while promoting blood flow by a tightening effect. By suppressing muscle vibration, muscle fatigue can be reduced. In addition, by promoting blood flow, oxygen is supplied to the exercising muscles, thereby improving exercise performance.

The print layer 5 includes a base 6 and piezoelectric particles 7 held in a dispersed state on the base 6.
The base 6 holds the piezoelectric particles 7 on the material body 3 and functions as taping for the wearer.
The base 6 is affixed to the material body 3 and expands and contracts as the material body 3 expands and contracts. In this case, as shown in FIG. 1B, when the material main body 3 expands, a tensile force Fs is generated in the planar direction following the expansion, and a compressive force Fc is generated in the thickness direction and contracts. . This compressive force Fc is applied to the piezoelectric particles 7 via the base 6, and a piezoelectric effect is generated in the piezoelectric particles 7 to generate heat.
The base 6 is preferably made of a material having elasticity equivalent to that of the material main body 3 in order to apply the compressive force Fc to the piezoelectric particles 7, and is peeled off after being attached to the material main body 3 on a print. Since it is desired to be difficult, it is particularly preferable to use silicone rubber.
Although the thickness of the base 6 is arbitrary, according to the screen printing method to be described later, the base 6 has a thickness of about 0.01 mm.

The piezoelectric particle 7 is a characteristic element in the present embodiment. When the print layer 5 including the piezoelectric particle 7 expands as the material body 3 expands, pressure is applied to the piezoelectric particle 7, and the piezoelectric particle 7 corresponds to the generated strain. Voltage is generated. With the generation of this voltage, 1/2 × C · V ² of electrical energy is stored in the piezoelectric particles 7, and about 5 to 8% of the energy is converted into heat in the piezoelectric particles 7. It is supposed to be done. The clothing material 1 of the present embodiment uses this heat generation action.
In addition, the piezoelectric effect generates a positive electric effect that generates an electric field by generating electric polarization according to the stress when mechanical stress is applied, and a distortion according to the magnitude of the electric field when the electric polarization is generated by applying an electric field. Negative effects.

As the piezoelectric particles 7, various known materials can be used. For example, crystal can be used. Quartz is composed of a single crystal whose single crystal component is SiO ₂ , and has a feature that the temperature change of piezoelectric constants is small.
In addition, piezoelectric ceramics such as barium titanate (BaTiO ₃ ), lead titanate (PbTiO ₃ ), and lead zirconate titanate [Pb (Zr—Ti) O ₃ ] can be used as the piezoelectric particles 7. The piezoelectric particles 7 made of this piezoelectric ceramic are preferably subjected to polarization treatment. For example, in the case of barium titanate, a mixture of a barium carbonate powder and a titanium oxide powder is molded into a predetermined shape and then sintered, and an electrode is formed on the sintered body and subjected to polarization treatment, and then pulverized. Thus, barium titanate particles having piezoelectric characteristics are obtained.

In the present invention, the content of the piezoelectric particles 7 is not limited. However, the greater the content of the piezoelectric particles 7 in the print layer 5, the greater the amount of heat generated by the print layer 5. From the viewpoint of the amount of heat generation, the higher the content of the piezoelectric particles 7, the better. On the other hand, if the content of the piezoelectric particles 7 is too large, in addition to raising the price, the elasticity of the base 6 is impaired, so that the expansion of the print layer 5 accompanying the expansion of the material body 3 is hindered. It becomes difficult to apply pressure necessary for heat generation to the piezoelectric particles 7. Moreover, when there is too much content, there exists a possibility that the said particle | grain will protrude on the surface of the base 6. FIG.
From the above viewpoint, the amount of the piezoelectric particles 7 in the printed layer 5 is preferably 0.5 to 15% by volume, more preferably 0.5 to 3.0% by volume, and 1.0 to More preferably, it is 3.0 volume%.

In the present invention, as long as the effect of generating heat by applying pressure is obtained, the particle diameter of the piezoelectric particles 7 is not limited. However, it is difficult to disperse the piezoelectric particles 7 in the base 6 where the particle diameter is too small. On the other hand, since there is a restriction on the thickness of the base 6 applied to the clothes, this restriction is also related to the size of the particle diameter of the piezoelectric particles 7.
From the above viewpoint, the particle diameter of the piezoelectric particles 7 in the printed layer 5 is preferably 0.01 to 10 μm, more preferably 0.05 to 5 μm, and preferably 0.1 to 5 μm. Further preferred. This particle diameter is specified by the median diameter (d50).

In the present embodiment, the method for printing the print layer 5 on the material main body 3 is not limited. For example, a screen printing method which is a kind of stencil printing can be used.
Stencil printing is a printing method in which holes are made in the plate itself and ink is rubbed against the object to be printed therefrom. Usually, in screen printing, ink is placed on a silk screen in which unnecessary portions for printing are hardened with an emulsion, and the paint is transferred by rubbing with a squeegee. Since silk is used for the screen, it was originally called silk screen print, but now it uses silk, but uses a screen woven with fibers such as nylon and Tetron, or with a stainless steel wire.
In order to form the support print 23 of the compression pants 20 and the support print 33 of the compression shirt 30 which will be described later, a plate in which holes matching the form of the support prints 23 and 33 are formed, and this is used as the material main bodies 21 and 31. The coating material mixed with the piezoelectric particles 7 is transferred to the material bodies 21 and 31 through the holes.

Next, the compression pants 20 and the compression shirt 30 to which the clothing material 1 is applied will be described in order.
The compression pants 20 according to the present embodiment can improve the wearer's athletic ability by being worn when performing sports, and is configured to cover the lower body of the wearer. The compression pants 20 include a material main body 21 and a support print 23. The material main body 21 corresponds to the material main body 3 of the clothing material 1, and the support print 23 corresponds to the print layer 5 of the clothing material 1. The support print 23 is a generic name.

As shown in FIG. 2A, the compression pant 20 includes a first support print 23 </ b> A on the front side so as to surround the patella.
Further, as shown in FIG. 2 (b), the compression pants 20 have a second support print 23B extending from the gluteus medius to the intestinal tibia ligament and a biceps femoris muscle, a so-called hamstring. 3 support prints 23C and a fourth support print 23D extending from the Achilles tendon to the triceps surae, so-called calf.
The first support print 23 </ b> A to the fourth support print 23 </ b> D are configured by a print layer equivalent to the print layer 5 of the clothing material 1.

  When the compression pants 20 are worn and exercised, the material body 21 expands and contracts, but the support print 23 provided on the surface of the material body 21 also expands and contracts according to the expansion and contraction of the material body 21. When the material main body 21 is extended, the support print 23 is also extended. As a result, as shown in FIG. Fc is generated. At this time, since the compressive force Fc is applied to the piezoelectric particles 7 dispersed in the support print 23 (print layer 5), a piezoelectric effect is generated and heat is generated. For example, if the bending and stretching movements are repeated, the first support print 23A repeatedly expands and contracts, and the piezoelectric particles 7 generate heat each time they extend, so that the wearer can warm the periphery of the patella. Then, in addition to the material body 21 being in close contact with the wearer's body and applying pressure, blood flow is promoted by warming, so that more oxygen is supplied to the muscles, and lactic acid and waste As a result of promoting the discharge of things, it supports to exercise with higher performance. Since the second support print 23B to the fourth support print 23D are provided in addition to the first support print 23A, high-performance exercise is supported for the entire lower body.

  Next, the compression shirt 30 can also be worn when performing sports to improve the wearer's exercise ability, and is configured to cover the upper body of the wearer. The compression shirt 30 includes a material main body 31 and a support print 33. The material main body 31 corresponds to the material main body 3 of the clothing material 1, and the support print 33 corresponds to the print layer 5 of the clothing material 1. The support print 33 is a generic name.

As shown in FIG. 3, the compression shirt 30 includes a first support print 33A, a second support print 33B, a third support print 33C, a fourth support print 34D, and four support prints 33. The first support print 33A is provided so as to surround the deltoid muscle, and the second support print 33B is provided around the trapezius muscle. The third support print 33C is provided around the elbow and around the arm and elbow muscles, and the fourth support print 34D is provided along the latissimus dorsi.
When the wearer of the compression shirt 30 moves the upper body of these support prints 33, the piezoelectric particles 7 included in the support print 33 generate heat according to the moved part, and the same as in the case of the compression pants 20. There is an effect.

As mentioned above, although the clothing of this invention was demonstrated based on the compression pants 20 and the compression shirt 30, this invention is not limited to these.
For example, the compression pant 20 shown in FIG. 2 is formed so as to cover the wearer's ankle, but may be formed so as to cover the wearer's knee joint. It may be formed so as to cover up to the thigh.
Moreover, although the compression shirt 30 shown in FIG. 3 is a long sleeve, it can also be applied to a shirt without a short sleeve and a sleeve.
In addition, the applicable clothing is not limited to inners, and can be used for a wide range of uses such as bottoms, tops, legs, supporters, and gloves. Moreover, it can be used for clothes applied in the medical field such as a waist belt, knee pads, and elbow pads.

  In addition to this, the configuration described in the above embodiment can be selected or changed to another configuration as appropriate without departing from the gist of the present invention.

Next, an experiment in which the clothing material 1 is expanded and contracted in the plane direction to confirm the heat generation effect of the piezoelectric particles 7 will be described.
The material body 3, the base 6 and the piezoelectric particles 7 used were as follows, and the compression pants 20 and the compression shirt 30 produced from the covering material 1 were expanded and contracted.
[Specifications of clothing material 1]
Material body 3: 2-way tricot Base 6: Silicone rubber + pigment etc. Content in print layer 5 = 98.5% by volume
Piezoelectric particle 7: quartz, d50 = 10 μm, content in print layer 5 = 1.5% by volume
[Experimental conditions]
Experiment A: The experimenter took the waist part of the compression pants 20 and repeated expansion / contraction operation for 20 cycles after expanding the waist, and then observed by thermography. The result is shown in FIG.
Experiment B: The experimenter wore the compression pants 20 and continued various exercises such as walking and bending for 10 minutes, and then observed by thermography. The result is shown in FIG.
Experiment C: An experimenter wore a compression shirt 30 and continued various exercises such as bending and stretching of arms and torsion of the torso for 10 minutes, and then observed by thermography. The result is shown in FIG.

  As shown in FIGS. 4 to 6, the temperature of the portions of the support prints 23 and 33 containing the piezoelectric particles 7 is higher by about 1 to 5 ° C. than the portion of the surrounding material bodies 21 and 31 alone. Thus, it was confirmed that the piezoelectric particles 7 generated heat.

DESCRIPTION OF SYMBOLS 1 Material 3 Material body 5 Print layer 6 Base 7 Piezoelectric particle 20 Compression pants 21 Material body 23 Support print 23A 1st support print 23B 2nd support print 23C 3rd support print 23D 4th support print 30 Compression shirt 31 Material Main body 33 Support print 33A First support print 33B Second support print 33C Third support print 34D Fourth support print

Claims (5)

A material body made of stretchable fabric,
A printed layer applied to at least a partial region of at least one side of the front and back of the material body,
The printed layer includes a base and crystal particles as a piezoelectric body held on the base ,
The base expands and contracts with expansion and contraction of the material body, and a compressive force Fc is generated in the thickness direction.
The crystal particles, Compression Wear characterized that you heat generation by the compressive force Fc is applied. The quartz particles are contained in an amount of 0.5 to 5% by volume with respect to the entire printed layer.
The compression wear according to claim 1. The base is made of silicone rubber;
The compression wear according to claim 1 or 2. The compression wear is compression pants;
The printed layer includes a first printed layer that surrounds the patella, a second printed layer along the gluteal ligament to the iliac ligament, a third printed layer along the biceps femoris, and an Achilles tendon to the crus Comprising at least one fourth printed layer along the scalp;
The compression wear according to any one of claims 1 to 3 . The compression wear is a compression shirt;
The print layer includes a first print layer provided to surround the deltoid muscle, a second print layer provided to the periphery of the trapezius, and around the elbow and around the arm and elbow muscles. the third printed layer that, and comprises at least one fourth printing layer provided along the latissimus dorsi,
The compression wear according to any one of claims 1 to 3 .

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