JP2022187696A - shirt - Google Patents

Abstract

To provide a shirt which selects a part requiring heat retention and a part requiring heat dissipation, arranges heat retention fabric in the part requiring heat retention and arranges heat dissipation in the part requiring heat dissipation during warm-up of sports.SOLUTION: A shirt 1 includes a heat retention fabric part and a heat dissipation fabric part, arranges heat retention fabric 2 at positions covering at least a part of the greater pectoral muscles and arranges heat dissipation fabric 5a, 5b at positions covering at least a part of the side parts. The heat retention fabric is preferably hygroscopic heating fabric or fiber fabric low in heat conductivity. The heat dissipation fabric is preferably fabric containing highly quick-drying fiber, fabric containing fiber high in heat conductivity, thin fabric, or fabric of high air permeability.SELECTED DRAWING: Figure 1

Description

The present invention relates to a shirt suitable for sports.

Shirts cover the upper half of the human body and are worn as underwear or innerwear in everyday life, and are also useful when playing sports. In many sports such as baseball, soccer, rugby, marathon, running, walking, cycling, mountaineering, and tennis, warm-up is necessary to enhance athletic performance. Patent Literature 1 proposes a garment that keeps the legs warm as a whole. Patent Literature 2 proposes a garment that retains heat from the tip of the sleeve and from the buttocks to the hamstring. Japanese Patent Laid-Open No. 2003-100000 proposes making long socks from a heat insulating material and forming a heat radiating part in a part of the sock.

JP 2005-248389 A Japanese Patent Publication No. 2010-535296 JP 2020-133093 A

However, in the above-mentioned prior art, a portion that requires heat retention during exercise and a portion that requires heat dissipation are not selected, and further improvements have been desired.

In order to solve the above-mentioned conventional problems, the present invention selects a portion that requires heat retention during exercise and a portion that requires heat dissipation, and arranges a heat retaining fabric in the portion that requires heat retention to improve heat dissipation. Provide a shirt that dissipates heat where you need it most.

The shirt of the present invention includes a heat-retaining fabric portion and a heat-dissipating fabric portion, wherein the heat-retaining fabric is positioned to cover at least a portion of the pectoralis major muscle, and covers at least a portion of the armpits. The heat-dissipating fabric is arranged at the position.

In the shirt of the present invention, the heat-retaining fabric is arranged at a position covering at least a part of the pectoralis major muscle, and the heat-dissipating fabric is arranged at a position covering at least a part of the armpits, so that the prime mover muscles during exercise can be relieved. It is possible to provide a shirt that allows the user to continue exercising without reducing the thermal comfort by suppressing the rise in the core temperature by radiating heat from the heat radiating part while warming, improving muscle output, and promoting recovery. . In addition, the warm-up time can be shortened, and sports can be continued.

FIG. 1A is a schematic front view of a shirt in one embodiment of the present invention, and FIG. 1B is a schematic rear view of the same. FIG. 2A is a schematic front view of a shirt in another embodiment of the invention, and FIG. 2B is a schematic back view of the same. FIG. 3A is a schematic front view of a shirt in still another embodiment of the present invention, and FIG. 3B is a schematic rear view of the same. FIG. 4A is a schematic front view of a shirt in still another embodiment of the present invention, and FIG. 4B is a schematic back view of the same. FIG. 5 is a muscle diagram of the upper half of the human body viewed from the front. FIG. 6 is a muscle diagram of the upper half of the human body viewed from behind.

When exercising, it is required to improve physical ability. When muscles are warmed up, they are encouraged to increase their power output and promote super-recovery. This is because muscles are made up of chemical substances, and when the temperature rises, they enter a high-energy state, speeding up chemical reactions and speeding up nerve transmission and muscle movement. When the whole body is warmed, the temperature of the muscles rises, and muscle output and super-recovery are promoted. However, when the temperature inside the body (deep temperature) rises, it feels hot, thermal comfort decreases, and physical performance decreases. If exercise is continued while the whole body is warmed, the core temperature rises further, leading to heat fainting, heat cramps, heat exhaustion, and heat stroke, making exercise itself difficult.
The present invention warms the active muscles during exercise, improves muscle output, and promotes super-recovery while radiating heat from the heat-dissipating part, thereby suppressing the rise in deep-body temperature and maintaining thermal comfort. Provide clothing that allows you to continue exercising.

The present invention includes a heat-retaining fabric portion and a heat-dissipating fabric portion, the heat-retaining fabric is placed at a position covering at least a portion of the pectoralis major muscle, and the heat-dissipating fabric is placed at a position covering at least a portion of at least the armpit. It is a shirt with By arranging the heat-retaining fabric on a part of the pectoralis major muscle, which is the main muscle of the upper body, it is possible to improve the physical ability for various movements. Further, by arranging the heat-dissipating fabric at a position covering at least a part of the armpit, the heat-dissipating part of the axillary vein can be efficiently cooled. The axillary vein is located near the superior vena cava, has thick blood vessels, and is located close to the surface layer of the skin, so it is easily affected by heat-dissipating sites and can be cooled efficiently. This form is effective for sleeveless shirts. In addition, this shirt can shorten the warm-up time, leaving sufficient energy for the competition, and continuing sports as it is. In addition, other than the heat-retaining fabric portion and the heat-dissipating fabric portion, fabrics used for ordinary sports shirts can be arranged. This is the same for other examples of shirts.

In the present invention, it is preferable to further arrange a heat-retaining fabric at a position covering at least part of the deltoid muscle. The deltoid muscle is located in the shoulder area and can increase physical ability for various movements. Further, it is preferable to arrange the heat-retaining fabric at a position that covers at least part of the biceps brachii muscle and the triceps brachii muscle. By placing heat-retaining fabrics on the deltoid muscles, biceps brachii, and triceps brachii, which are major muscles in the movement of the upper extremities, the responsiveness, operability, and muscle strength of the upper extremities can be improved. These configurations are effective for short-sleeve shirts, half-sleeve shirts, and long-sleeve shirts.

In the shirt of the present invention, it is preferable that a heat-dissipating fabric is further arranged at a position that covers at least part of the infraspinatus muscle from the shoulder and is connected to the armpit. Furthermore, it is preferable to place a heat-dissipating fabric on the abdomen of the front body. As a result, it is possible to suppress an increase in the deep temperature of the body. These forms are effective for sleeveless shirts, short-sleeved shirts, half-sleeved shirts, and long-sleeved shirts.

In the shirt of the present invention, it is preferable to further arrange a heat-retaining fabric on the upper part of the back body and a heat-dissipating fabric on the lower part of the back body. This warms the active muscles during exercise, improves muscle output, and promotes super-recovery, while also allowing heat to radiate from the heat-dissipating parts, thereby suppressing the rise in core temperature and reducing thermal comfort. You can keep exercising. More preferably, at least a portion of the trapezius muscle is provided with a heat-retaining fabric, and at least a portion of the thoracolumbar fascia is provided with a heat-dissipating fabric. This form is effective for sleeveless shirts, short-sleeved shirts, half-sleeved shirts, long-sleeved shirts, and warm-up shirts.

The heat-retaining fabric should preferably have a smaller space in the garment between the specified muscles. The space inside the clothes is preferably 20 mm or less, more preferably 10 mm or less, and may be in direct contact. By doing so, the heat-retaining fabric makes it easier to warm the muscles in the necessary areas while suppressing heat dissipation.

It is preferable that the heat-retaining fabric has water absorbency. When the temperature of the muscles is increased, sweat in the liquid phase is generated on the skin surface. If there is no water absorbency, sweat remains on the skin surface and absorbs heat from the muscles, which lowers the temperature of the muscles, which is not preferable. The water absorption is preferably within 60 seconds, more preferably within 30 seconds, according to the JIS L 1907 dropping method.

Preferably, the thermal fabric covers 50% or more of the designated muscles in the body part covered by the garment. More preferably, it covers 70% or more. By doing so, it is possible to heat the key points of the designated muscles.

The heat-retaining fabric should have a smaller amount of heat dissipation. The heat radiation amount is preferably 2.0 W or less, more preferably 1.8 W or less. The amount of heat dissipation indicates the power consumption when the heat retention evaluation device in KES-F7 manufactured by Kato Tech Co., Ltd. in accordance with JIS L 1927 is set to ΔT = 20°C. This power consumption quantifies the phenomenon of heat dissipation through the fabric, and the smaller the value, the better the heat retention by the fabric.

The heat-retaining fabric is preferably the fabric exemplified below.
(1) Moisture-absorbing and heat-generating fabric The moisture-heat-generating fabric is a fabric containing highly crosslinked polyacrylate fibers. Since highly crosslinked polyacrylate fibers alone generate enough heat to cause burns, they are usually blended with polyester fibers in an amount of 10 to 40% by mass and spun to form woven or knitted fabrics. It is manufactured by Mitsuno Co., Ltd. and is commercially available under the trade name "Breath Thermo".
(2) Fiber fabrics with low thermal conductivity Fibers with low thermal conductivity include wool with a thermal conductivity of 0.19, Nylon 0.22, polyester 0.25 (both units are kcalm ^-1 h ^-1 ° C. ^-1 ), and these can be used. In addition, according to "Plastic Data Book", page 60, published on January 20, 2006, by the Industrial Research Institute, the thermal conductivity of polypropylene is 0.12 W/m·°C, and polypropylene fibers can also be used.
(3) Fiber Fabric Containing Heat Storage Fiber The heat storage fiber fabric is a fabric containing fibers spun by kneading a heat storage substance into a polymer. For example, it is a fabric containing fibers spun by kneading ceramic fine particles, graphite silica fine powder, volcanic ash, tungsten fine powder, or the like.
(4) Bulging fabrics Bulging fabrics include boa cloths, pile cloths, raised blankets, double-knotted fabrics, stretch knitted fabrics using temporary twist crimp yarns, and the like.
(5) Cloth for point contact The cloth for point contact with the skin of the human body may be formed by a woven structure, a knitted structure, or may be formed by embossing.
(6) Vapor-Deposited Fabric with Radiation Effect Vapor-deposited fabric with radiation effect can be made of fibers or fabrics on which metal such as aluminum is vapor-deposited.
(7) Fabric with Low Air Permeability The fabric with low air permeability is preferably a fabric with air permeability defined by the Frazier method of JIS L 1096 of 150 cm ³ /cm ² ·sec or less. The lower the air permeability, the higher the heat retention, but the more damp feeling inside the clothes, so the lower limit is preferably 1 cm ³ /cm ² ·sec or more.
One or a combination of two or more of the above can be used.

The heat-dissipating fabric covers at least a portion of the axillary vein. The axillary vein connects with the superior vena cava, one of the thickest blood vessels just below the heart, and the heat-dissipating fabric efficiently returns cooled blood to the heart, suppressing the rise in core temperature. However, if the blood vessels are not covered by a shirt, the outside air can cool the blood without placing a heat-dissipating fabric. Preferably, the garment covers 50% or more of the designated blood vessels in the body part covered. More preferably, it covers 70% or more. By doing so, it is possible to efficiently dissipate heat from the designated main portion of the blood vessel. The heat-dissipating fabric should be as large as possible. The heat radiation amount is preferably 1.0 W or more, more preferably 1.2 W or more. The amount of heat dissipation indicates the power consumption when the heat retention evaluation device in KES-F7 manufactured by Kato Tech Co., Ltd. in accordance with JIS L 1927 is set to ΔT = 20°C. This power consumption quantifies the phenomenon of heat dissipation through the fabric, and the larger the value, the more heat is dissipated by the fabric.

The heat-dissipating fabric is preferably the fabric exemplified below.
(1) Fabric Containing Fast-Drying Fibers Fabrics containing fast-drying fibers include, for example, polyester water-absorbing and quick-drying treated fabrics. This fabric easily dries moisture such as sweat, and dissipates heat from the human body through latent heat of evaporation during drying. As an example, it is obtained by processing a hydrophilic polyester resin. The hydrophilic polyester resin processing agent to be used absorbs (exhausts and diffuses) at least a portion of the processing agent into the polyester fiber due to the same function as disperse dyes. This hydrophilic polyester resin processing agent is a linear copolymer in which terminal groups of a polyester group and a hydrophilic group are bonded to each other. Block copolymers are preferred. The molecular weight is preferably 5000-8000, more preferably 6000-7000. The weight ratio of polyester groups and hydrophilic groups is preferably 90/10 to 10/90, more preferably 60/40 to 20/80. Hydrophilic groups include polyethylene glycol, 5-sulfoisophthalic acid-sodium, trimellitic anhydride and the like, with polyethylene glycol being more preferred. As such a processing agent, there is product number KMZ-902 manufactured by Takamatsu Yushi Co., Ltd.
The water absorption is preferably within 20 seconds, more preferably within 10 seconds, according to the JIS L 1907 dropping method. The drying time is preferably 80 minutes or less, more preferably 70 minutes or less, according to the ISO 17617-2014 A1 method. By doing so, water absorption, diffusion, and quick drying are combined, and the latent heat of evaporation lowers the temperature of the fabric and dissipates heat from the human body.
(2) Fabrics containing highly thermally conductive fibers Fabrics containing highly thermally conductive fibers are described in the Textile Handbook, edited by the Society of Fiber Science and Technology, 3rd edition, p.462, published on December 15, 2004. The conductivity is 0.56 kcalm ⁻¹ h ⁻¹ ° C. ⁻¹ ), and rayon is comparable and can be used. Also, "Plastic Data Book", page 60, published 2006.1.20, according to the Industrial Research Institute, the thermal conductivity of polyethylene is 0.33 W/m・℃ for LDPE and 0.46-0.50 W/m・℃ for HDPE. Yes, polyethylene fibers can also be used. Ethylene vinyl alcohol fibers, derived from ethylene fibers, can also be used. It is commercially available from Kuraray Co., Ltd. under the trade name 'Sophista'.
(3) Fabric with a thin thickness A fabric that is relatively thin compared to the heat-retaining fabric can also be used. The thickness of the heat-dissipating fabric is preferably 0.1 mm or more thinner than the heat-retaining fabric, more preferably 0.13 mm or more, and still more preferably 0.15 mm or more.
(4) Highly Breathable Fabric The highly breathable fabric preferably has an air permeability of 100 cm ³ /cm ² ·sec or more as defined by the Frazier method of JIS L 1096. The higher the air permeability, the higher the heat dissipation, but the lower the strength of the fabric, so the upper limit is preferably 500 cm ³ /cm ² ·sec or less.
(5) Fabrics containing cooling fibers Cellulose fibers such as cotton and rayon are hydrophilic fibers that have the property of not separating when they absorb liquid water, and are cold when wet. It may be a fabric containing
One or a combination of two or more of the above can be used. Among these, polyester water-absorbing and quick-drying treated fabric is preferable.

It is also preferable that the heat-retaining fabric and the heat-dissipating fabric have the following relationship.
(1) Heat-retaining fabric-heat-dissipating fabric>there is a thickness difference of 0.1 mm.
The greater the thickness, the more dead air is stored and the heat insulation increases. Since the heat-retaining fabric is thicker than the heat-dissipating fabric, the heat inside the clothes does not easily escape to the outside of the clothes, raising the temperature of the muscles while suppressing the rise of the core temperature. If the difference in thickness is less than 0.1 mm, the difference in heat insulation is small, and it becomes impossible to properly raise the muscle temperature or maintain the core temperature. In a hot environment, the thickness of both the heat-retaining fabric and the heat-dissipating fabric is thin. If the thickness difference between the heat-dissipating fabric and the heat-dissipating fabric is greater than 0.1 mm, it has a function.
(2) There is a heat dissipation difference of 0.3W between the heat dissipating fabric and the heat retaining fabric.
The amount of heat dissipation indicates the power consumption when the heat retention evaluation device in KES-F7 manufactured by Kato Tech Co., Ltd. in accordance with JIS L 1927 is set to ΔT = 20°C. This power consumption quantifies the phenomenon of heat dissipation through the fabric, and the larger the value, the more heat is dissipated by the fabric. If the difference in the amount of heat released is within 0.3 W, it will not be possible to properly increase the muscle temperature or maintain the core temperature. In a hot environment, the heat dissipation amount of both heat-retaining fabric and heat-dissipating fabric is small, and in a cold environment, the heat-dissipating amount of both heat-retaining fabric and heat-dissipating fabric is increased. , If the heat dissipation difference between the heat insulating fabric and the heat dissipating fabric is greater than 0.3W, it has a function.
(3) Heat-dissipating fabric-Insulating fabric>There is a difference in air permeability of >50 cm ³ /cm ² ·sec.
The air permeability indicates the value obtained by the JIS L1096 air permeability test. The higher the air permeability, the easier it is for air outside the clothing to enter the clothing, resulting in greater heat dissipation. If the difference in air permeability is within 50 cm ³ /cm ² ·sec, it will not be possible to properly raise the muscle temperature or maintain the core temperature. In a hot environment, the air permeability of both the heat-retaining fabric and the heat-dissipating fabric is low, and in the cold environment, the air-permeability of both the heat-retaining fabric and the heat-dissipating fabric is increased, so that the clothing can be designed according to the environment. , if the difference in air permeability between the heat-insulating fabric and the heat-dissipating fabric is greater than 50 cm ³ /cm ² ·sec, it has a function.

The inner space of the shirt is preferably 20 mm or less, more preferably 10 mm or less, and may be in direct contact. By doing so, the heat-retaining fabric makes it easier to warm the muscles in the necessary areas while suppressing heat dissipation. In addition, the heat-dissipating fabric promotes the heat-dissipating properties of the blood vessels at the necessary sites, and can suppress the rise of the deep temperature.

In the formation of clothes, a method of sewing a heat-retaining fabric and a heat-dissipating fabric together by sewing, a method of making the entire garment from a heat-dissipating fabric and sewing heat-retaining fabric in the necessary places, and a method of sewing the heat-retaining fabric as a whole There is a method of making it with fabric and partially dissolving and excising the necessary parts. For sewing, there are a method of sewing threads, a method of adhering hot melt, and a method of dissolving and connecting fabrics.

Clothes that have almost no internal space and are in close contact with the body are called compression-type clothes, and have a shape that is efficient in retaining heat in muscles and dissipating heat in blood vessels. When forming a compression type, improve the stretchability of the fabric with a large area to be used. Stretchability is measured based on JIS L 1096 8.14.1 A method under the conditions of a load of 17.6 N and a tensile speed of 200 mm / min, and the elongation in the width direction is 50% or more. It is suitable to have By doing so, when wearing a compression type that is equal to or slightly smaller than the nude size of the body, the body and clothes are in close contact but do not hinder mobility. In the type where the space inside the garment is 20 mm or less and is more roomy than the compression type, the stretchability of the fabric is based on JIS L 1096 8.14.1 A method, load 17.6 N, tensile speed 200 mm / min. Using the elongation measured below, a widthwise elongation of 10% or more is suitable.

The shirt of the invention is preferably a sports shirt. Sleeveless shirts, short-sleeved shirts, seven-part sleeve shirts, long-sleeved shirts, and warm-up shirts are preferred. These shirts can be made by sewing a heat-retaining fabric, a heat-dissipating fabric, and, if necessary, a regular shirt fabric by sewing, or they can be sewn entirely with a heat-dissipating fabric and heat-retaining fabric is sewn in the necessary places. The fabric can be glued or sewn together.

Description will be made below with reference to the drawings. In the following drawings, the same symbols indicate the same items. FIG. 1A is a schematic front view of a long-sleeved shirt according to one embodiment of the present invention, and FIG. 1B is a schematic rear view of the same. In the front body of this long-sleeved shirt 1, a heat-retaining fabric 2 is arranged at a position covering the chest, that is, a position covering the pectoralis major muscle. Heat-retaining fabrics 3a and 3b are arranged at positions covering at least part of the deltoid muscle, biceps brachii muscle, and at least part of the triceps brachii muscle from the upper arm to the shoulder. In addition, a heat-dissipating fabric 4 is placed on the abdomen below the chest of the front body, heat-dissipating fabrics 5a and 5b are placed on the armpits, and heat-dissipating fabrics 6a and 6b are placed on the armpits. Heat-dissipating fabrics 7a and 7b are placed on the forearms, and heat-dissipating fabrics 8a and 8b are placed at positions covering shoulders and part of the infraspinatus muscles and connecting to the armpits. A heat-retaining fabric 9 is arranged on the upper part of the back body of this long-sleeved shirt 1, and a heat-dissipating fabric 10 is arranged on the lower part of the back body. The heat-retaining fabric part (part) and the heat-dissipating fabric part (part) are connected by sewing. This configuration is the same in FIGS. 3 and 4 as well.

FIG. 2A is a schematic front view of a long-sleeve shirt in another embodiment of the present invention, and FIG. 2B is a schematic rear view of the same. This long-sleeved shirt 11 is entirely made of a heat-dissipating fabric 15, and heat-retaining fabrics 12a and 12b are arranged at positions covering the pectoral muscles of the front body. Heat-retaining fabrics 13a and 13b are arranged at positions covering the deltoid muscle from the upper arm to the shoulder. Further, heat insulating fabrics 14a and 14b are arranged at positions covering the biceps brachii.
A heat-retaining fabric 16 is arranged on the upper part of the back body of this long-sleeved shirt 11, and heat-retaining fabrics 17a and 17b are arranged at positions covering the triceps brachii.
FIGS. 2A and 2B show the skin side, and the sea-island pattern does not appear on the outside air side.

FIG. 3A is a schematic front view of a short-sleeved shirt according to still another embodiment of the present invention, and FIG. 3B is a schematic rear view of the same. The front body of this short-sleeved shirt 18 has a heat-retaining fabric 19 arranged at a position covering the chest, that is, a position covering the pectoralis major muscle. Insulating fabrics 20a and 20b are arranged at positions covering at least part of the deltoid muscle and at least part of the biceps brachii muscle and the triceps brachii muscle from the upper arm to the shoulder. In addition, a heat-dissipating fabric 21 is placed on the abdomen below the chest of the front body, heat-dissipating fabrics 22a and 22b are placed on the armpits, and heat-dissipating fabrics 23a and 23b are placed on the armpits. , heat-dissipating fabrics 24a and 24b are arranged at positions covering shoulders and part of the infraspinatus muscles and connected to the armpits.
A heat-retaining fabric 25 is arranged on the upper part of the back body of this short-sleeved shirt 18, and a heat-dissipating fabric 26 is arranged on the lower part of the back body.

FIG. 4A is a schematic front view of a sleeveless shirt in still another embodiment of the present invention, and FIG. 4B is a schematic rear view of the same. In the front body of this sleeveless shirt 27, a heat-retaining fabric 28 is arranged at a position covering the chest, that is, a position covering the pectoralis major muscle. In addition, heat insulating fabrics 29a and 29b are arranged at positions covering at least part of the deltoid muscle from the upper arm to the shoulder. In addition, a heat-dissipating fabric 30 is placed on the abdomen below the chest of the front body, heat-dissipating fabrics 31a and 31b are placed on the armpits, and heat-dissipating fabrics 32a and 32b are placed on the armpits. , heat-dissipating fabrics 33a and 33b are arranged at positions covering shoulders and part of the infraspinatus muscles and connected to the armpits.
A heat-retaining fabric 34 is arranged on the upper part of the back body of this sleeveless shirt 27, and a heat-dissipating fabric 35 is arranged on the lower part of the back body.

FIG. 5 is a muscle diagram of the upper half of the human body seen from the front, and FIG. 6 is a muscle diagram of the upper half of the human body seen from the rear. FIG. 3 is a reference diagram showing the arrangement relationship between the heat retaining fabric and the heat dissipating fabric of the present invention;

A more specific description will be given below using examples. The present invention should not be construed as being limited to the following examples.
<Method for measuring ventilation rate>
Measure according to the JIS L 1096A method (Frazier method).
<Method for measuring heat release>
The amount of heat release is measured by the power consumption when a heat retention evaluation device, KES-F7 manufactured by Kato Tech Co., Ltd., conforming to JIS L 1927, is set to ΔT=20°C.
<Method for measuring stretchability>
The stretchability is measured according to JIS L 1096 8.14.1 A method under conditions of a load of 17.6 N and a tensile speed of 200 mm/min.

(Example 1)
・Insulating fabric A
A circular knit fabric is used as a knitted fabric, the fiber composition is 90% by mass of polyethylene terephthalate (PET) and 10% by mass of highly crosslinked polyacrylate fiber, and the yarn used is a PET temporary twisted yarn with a yarn fineness of 83 decitex and 48 filaments. A PET temporary twisted yarn with a fineness of 55 decitex and 24 filaments and a spun yarn of a metric count of No. 40 (a blended product of 70% by mass of PET and 30% by mass of highly crosslinked polyacrylate fiber) were used. This circular knitted fabric had a mass per unit area (basis weight) of 130 g/m ² , a thickness of 0.7 mm, a heat dissipation of 0.8 W, an air permeability of 130 cm ³ /cm ² ·sec, and a stretchability of 30%. rice field.
・Heat-dissipating fabric A
A circular knit fabric is used as a knitted fabric, the fiber composition is 100% by mass of polyester (PET), and the yarn used is PET temporary twisted yarn with a yarn fineness of 83 decitex and a filament count of 48, and PET with a yarn fineness of 83 decitex and a filament count of 36. Temporarily twisted yarn was used. This circular knitted fabric had a mass per unit area (basis weight) of 115 g/m ² , a thickness of 0.5 mm, a heat dissipation of 1.2 W, an air permeability of 200 cm ³ /cm ² ·sec, and a stretchability of 40%. rice field.
Formation of Clothes The heat-retaining fabric A and the heat-dissipating fabric A were sewn together at the locations shown in Fig. 1 to form a long-sleeved shirt. The space inside the garment was 20 mm.

(Example 2)
・Insulating fabric B
A circular knit fabric is used as a knitted fabric, the fiber composition is 87% by mass of PET, 10% by mass of highly crosslinked polyacrylate fiber, and 3% by mass of polyurethane, and the yarn used is a PET temporary twisted yarn with a yarn fineness of 83 decitex and 48 filaments. A polyurethane yarn with a fineness of 33 decitex and a spun yarn with a metric count of No. 40 (a blended product of 70% by mass of PET and 30% by mass of highly crosslinked polyacrylate fiber) were used. The mass per unit area (basis weight) of this circular knitted fabric was 150 g/m ² , the thickness was 0.9 mm, the heat dissipation was 1.1 W, the air permeability was 100 cm ³ /cm ² ·sec, and the stretchability was 80%. rice field.
・Heat dissipation fabric B
A warp knitted fabric is used as a knitted fabric, the fiber composition is 97% by mass of polyester (PET) and 3% by mass of polyurethane, and the yarn used is a PET temporary twisted yarn with a yarn fineness of 83 decitex and a filament number of 48, and a yarn fineness of 33 decitex. Polyurethane thread. This warp knitted fabric had a mass per unit area (basis weight) of 160 g/m ² , a thickness of 0.6 mm, a heat dissipation of 2.0 W, an air permeability of 150 cm ³ /cm ² ·sec, and a stretchability of 120%. rice field.
Formation of clothes The heat-dissipating fabric B was used to form the entire garment, and the heat-retaining fabric B was adhered to the heat-retaining fabric part shown in Fig. 2 to form a long-sleeved shirt. The space inside the garment was 10 mm or less, and the shirt was a compression type shirt in which the body and the garment were in close contact.

(Comparative product 1)
A long-sleeved shirt having the same shape as in Example 1, which was made only of the heat-dissipating fabric A, was used.

(Comparative example 2)
A long-sleeved shirt having the same shape as in Example 2, which was made only of the heat-dissipating fabric B, was used.

(evaluation)
Ten healthy male subjects wore Example 1 and Comparative Example 1, and after resting for 30 minutes, they were evaluated by pushing up. A comparison was made between the time to start the motion when the motion was started by a sound cue and the time to perform one push-up, and the average values were compared. The results are as follows.
・Time until start of operation Example 1<Comparative example 1
・ Time for one push-up Example 1 <Comparative example 1
In Example 1, the temperature of the muscles increased due to the heat-retaining fabric, and the response and output of the muscles increased, so it was confirmed that the time to start movement and the time to perform one push-up were shortened.
Next, the thermal comfort of the body was comparatively evaluated when push-ups were performed 50 times at a rhythm of 1 push-up per second. The results are as follows.
- Example 1: Slightly warm - Comparative example 1: Slightly warm In Example 1, blood vessels could be efficiently cooled by the heat-dissipating fabric, and thermal comfort at the same level as in Comparative Example 1 was achieved.
Next, 10 healthy male subjects wore Example 2 and Comparative Example 2, rested for 30 minutes, and then evaluated by pushing up. A comparison was made between the time to start the motion when the motion was started by a sound cue and the time to perform one push-up, and the average values were compared. The results are as follows.
・Time until start of operation Example 2 <Comparative example 2
・ Time for one push-up Example 2 <Comparative example 2
In Example 2, the heat-retaining fabric increased the temperature of the muscles and increased the reaction and output of the muscles, which shortened the time until the start of movement and the time required for one push-up.
Next, the thermal comfort of the body was comparatively evaluated when push-ups were performed 50 times at a rhythm of 1 push-up per second. The results are as follows.
- Example 2: Slightly warm - Comparative example 2: Slightly warm In Example 2, blood vessels could be efficiently cooled by the heat-dissipating fabric, and thermal comfort at the same level as in Comparative Example 2 was achieved.

Based on the above evaluation, the shirt of this example warms the active muscles during exercise, improves muscle output and promotes recovery, and at the same time, by performing heat dissipation from the heat dissipation part, suppresses the rise in deep body temperature. It was confirmed that exercise could be continued without deteriorating thermal comfort, warm-up time could be shortened, and sports could be continued.

The shirt of the present invention can be applied to various shirts such as a sleeveless shirt, a short-sleeved shirt, a half-sleeved shirt, and a long-sleeved shirt. It is suitable for use as an inner shirt for baseball, soccer, rugby, marathon, running, walking, cycling, mountaineering, tennis, and the like.

1, 11 Long-sleeved shirt 2, 19, 28 Heat-insulating fabrics 3a, 3b, 20a, 20b, 29a, 29b for pectoralis major muscles Heat-insulating fabrics for deltoid, biceps, and triceps muscles 4, 21, 30 Heat-dissipating fabrics 5a, 5b, 22a, 22b, 31a, 31b of front body abdomen Heat-dissipating fabrics 6a, 6b, 23a, 23b, 32a, 32b of armpits Heat-dissipating fabrics 7a, 7b of armpits Forearms Heat-dissipating fabrics 8a, 8b, 24a, 24b, 33a, 33b Heat-dissipating fabrics 9, 25, 34 from the shoulder to the armpit Heat-retaining fabrics 10, 26, 35 at the upper part of the back Body heat-dissipating at the lower part of the back body Thermal fabrics 12a, 12b Heat-retaining fabrics 13a, 13b for pectoral muscles 14a, 14b Heat-retaining fabrics for deltoid muscles 15 Heat-dissipating fabric for entire body 16 Heat-retaining fabric for upper back body 17a, 17b Heat-retaining fabric for triceps 18 Short-sleeved shirt 27 Sleeveless shirt

The shirt of the present invention includes a heat-retaining fabric portion and a heat-dissipating fabric portion . A heat-dissipating fabric is arranged at a position that covers at least part of the infraspinatus muscle and is connected to the armpit and the lower part of the back body .

The shirt of the present invention includes a heat - retaining fabric portion and a heat-dissipating fabric portion. A heat-dissipating fabric is arranged at a position where it passes from the shoulder to the back side of the back body and covers at least a part of the infraspinatus muscle and is connected to the armpit and the lower part of the back body , and the front body and the upper arm are arranged. The heat-retaining fabric of is continuous, and the heat-retaining fabrics of the back body and the upper arm are separated by the heat-dissipating fabric .

The heat-dissipating fabric covers at least a portion of the axillary vein. The axillary vein connects with the superior vena cava, one of the thickest blood vessels just below the heart, and the heat-dissipating fabric efficiently returns cooled blood to the heart, suppressing the rise in core temperature. However, if the blood vessels are not covered by a shirt, the outside air can cool the blood without placing a heat-dissipating fabric. It is preferable that the clothing covers 50% or more of the designated body part. More preferably, it covers 70% or more. By doing so, it is possible to efficiently dissipate heat from the designated main portion of the blood vessel. The heat-dissipating fabric should be as large as possible. The heat radiation amount is preferably 1.0 W or more, more preferably 1.2 W or more. The amount of heat dissipation indicates the power consumption when the heat retention evaluation device in KES-F7 manufactured by Kato Tech Co., Ltd. in accordance with JIS L 1927 is set to ΔT = 20°C. This power consumption quantifies the phenomenon of heat dissipation through the fabric, and the larger the value, the more heat is dissipated by the fabric.

FIG. 2A is a schematic front view of a long-sleeved shirt in a reference example , and FIG. 2B is a schematic rear view of the same. This long-sleeved shirt 11 is entirely made of a heat-dissipating fabric 15, and heat-retaining fabrics 12a and 12b are arranged at positions covering the pectoral muscles of the front body. Heat-retaining fabrics 13a and 13b are arranged at positions covering the deltoid muscle from the upper arm to the shoulder. Further, heat insulating fabrics 14a and 14b are arranged at positions covering the biceps brachii.
A heat-retaining fabric 16 is arranged on the upper part of the back body of this long-sleeved shirt 11, and heat-retaining fabrics 17a and 17b are arranged at positions covering the triceps brachii.
FIGS. 2A and 2B show the skin side, and the sea-island pattern does not appear on the outside air side.

(Example 2 , reference example )
・Insulating fabric B
A circular knit fabric is used as a knitted fabric, the fiber composition is 87% by mass of PET, 10% by mass of highly crosslinked polyacrylate fiber, and 3% by mass of polyurethane, and the yarn used is a PET temporary twisted yarn with a yarn fineness of 83 decitex and 48 filaments. A polyurethane yarn with a fineness of 33 decitex and a spun yarn with a metric count of No. 40 (a blended product of 70% by mass of PET and 30% by mass of highly crosslinked polyacrylate fiber) were used. The mass per unit area (basis weight) of this circular knitted fabric was 150 g/m ² , the thickness was 0.9 mm, the heat dissipation was 1.1 W, the air permeability was 100 cm ³ /cm ² ·sec, and the stretchability was 80%. rice field.
・Heat dissipation fabric B
A warp knitted fabric is used as a knitted fabric, the fiber composition is 97% by mass of polyester (PET) and 3% by mass of polyurethane, and the yarn used is a PET temporary twisted yarn with a yarn fineness of 83 decitex and a filament number of 48, and a yarn fineness of 33 decitex. Polyurethane thread. This warp knitted fabric had a mass per unit area (basis weight) of 160 g/m ² , a thickness of 0.6 mm, a heat dissipation of 2.0 W, an air permeability of 150 cm ³ /cm ² ·sec, and a stretchability of 120%. rice field.
Formation of clothes The heat-dissipating fabric B was used to form the entire garment, and the heat-retaining fabric B was adhered to the heat-retaining fabric part shown in Fig. 2 to form a long-sleeved shirt. The space inside the garment was 10 mm or less, and the shirt was a compression type shirt in which the body and the garment were in close contact.

Claims (10)

A shirt comprising a heat-retaining fabric portion and a heat-dissipating fabric portion,
Arranging the heat-retaining fabric at a position covering at least a part of the pectoralis major muscle,
A shirt, wherein the heat-dissipating fabric is arranged at a position covering at least part of the armpits. 2. The shirt according to claim 1, further comprising a heat-retaining fabric positioned to cover at least a portion of the deltoid muscle. 3. The shirt according to claim 1, further comprising a heat-retaining fabric positioned to cover at least part of the biceps and triceps. 4. The shirt according to any one of claims 1 to 3, further comprising a heat-dissipating fabric arranged at a position that covers at least part of the infraspinatus muscle from the shoulder and connects to the armpit. The shirt according to any one of claims 1 to 4, wherein the shirt has a heat-dissipating fabric arranged on the abdomen of the front body. The shirt according to any one of claims 1 to 5, further comprising a heat-retaining fabric arranged on the upper part of the back body and a heat-dissipating material arranged on the lower part of the back body. The heat-retaining fabric includes a hygroscopic heat-generating fabric, a fiber fabric with low thermal conductivity, a fiber fabric containing heat-storing fibers, a swollen fabric, a point-contact fabric, a vapor-deposited fabric with a radiation effect, and a low-breathability fabric. The shirt according to any one of claims 1 to 6, which is at least one fabric selected from. The heat-dissipating fabric is at least one selected from fabrics containing fast-drying fibers, fabrics containing highly thermally conductive fibers, thin fabrics, highly breathable fabrics, and fabrics containing cooling fibers. The shirt according to any one of claims 1 to 7, which is a fabric. The shirt according to any one of claims 1 to 8, wherein the shirt is a compression type shirt. The shirt according to any one of claims 1 to 9, wherein the shirt is a sports shirt.

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