JP2004155113A

JP2004155113A - Heat insulating/low-temperature insulating raw material and fabric and clothes using them

Info

Publication number: JP2004155113A
Application number: JP2002324254A
Authority: JP
Inventors: Masatsugu Mukai; Yasunao Shimano; 正嗣向; 泰尚嶋野
Original assignee: Komatsu Seiren Co Ltd; 小松精練株式会社
Priority date: 2002-11-07
Filing date: 2002-11-07
Publication date: 2004-06-03

Abstract

An object of the present invention is to provide a heat insulating / cooling material capable of providing a versatile and practical heat insulating / cooling cloth or clothing.
A heat insulating / cooling material including two resin layers and a resin mass containing a thermal buffer substance disposed between the resin layers, and a heat insulating / cooling material in which a fiber base material is laminated on the material. Cooling fabrics, and clothing containing these materials or fabrics.
[Selection diagram] None

Description

[0001]
TECHNICAL FIELD OF THE INVENTION
The present invention relates to a material for improving heat retention and cold retention. The present invention also relates to a heat-retaining and cold-retaining fabric that can be used for clothing, curtains, futons, and a heat-retaining or cold-retaining cover and the like, and a heat-retaining and cold-retaining garment using the same.
[0002]
[Prior art]
As described below, there have been various proposals for means for obtaining a heat-retaining and cold-retaining fabric, but all have various problems.
[0003]
That is, the first method is a method in which a material that absorbs infrared rays from sunlight or the like is attached to a fabric to increase heat retention, and specifically, a method such as carbon black or a colored metal carbide (for example, zirconium carbide) is used. This is a method in which an infrared absorbent is kneaded or applied to fibers. However, the heat retaining fabric produced by this method is warmer than the unprocessed fabric only in the presence of sunlight, but it is natural that the fabric is warm in the presence of sunlight, In some cases, there is a low need for heat retention, and there is a problem that it is not practical.
[0004]
The second method is a method of microencapsulating a phase change material such as paraffin and fixing the same to a cloth with a resin binder to exhibit heat retention (for example, see Patent Document 1). The phase change material exhibits heat retention by absorbing heat when melting and lowering the environmental temperature, and when solidifying generates heat and raises the environmental temperature, but exhibits heat retention. In a cloth, since the phase change material has a small heat absorption capacity and a small heat generation capacity, it is necessary to use a large amount of the phase change material, and there is a problem that the feel of the cloth is hardened and the commercial value is reduced. Also, Japanese Patent Application Laid-Open No. 2002-201571 (Patent Document 2) describes a heat buffer material made of a sheet-like material including microcapsules in which a heat buffer material is encapsulated.
[0005]
The third method is a method of forming a dead air in a fabric to prevent heat loss due to convection of air and enhance heat retention. Specifically, there are a method of forming dead air by raising and raising hairs, such as a blanket, and a method of forming a dead air layer using hollow fibers. However, the former method has many problems in which it is difficult to make a raised or raised state because of the characteristics of the material and use of the fabric, and there is a problem that the types of fabrics that can form dead air are considerably limited. The method using hollow fibers requires a product design from the yarn manufacturing stage, increases the manufacturing cost, is complicated in processing, and is not versatile.
[0006]
Also, for example, acrylonitrile-based fibers described in Japanese Patent Application Laid-Open No. 9-59872 (Patent Document 3) and the like are known to be excellent in heat retention because they are highly hygroscopic and generate heat when they absorb moisture. However, because this acrylonitrile fiber is excellent in hygroscopicity, when it absorbs moisture, the fiber surface swells, there is a slimy touch, and using it alone has little commercial value as a textile product . Therefore, attempts have been made to blend and mix the acrylonitrile-based fibers with silk, cotton, wool, polyester, acrylic, nylon, rayon fibers, and the like, and to use them as futons and the like that require hygroscopicity. However, this blending method does not yet have a sufficient improvement effect, and when fabrics are obtained using the acrylonitrile-based blended fibers, it is necessary to design products from the yarn manufacturing stage, as in the case of hollow fibers. However, this method is not versatile because the manufacturing cost is high and the processing is complicated.
[0007]
By the way, sports clothing is one of the applications in which the use of a heat-retaining / cooling-retaining cloth is desired. In the case of a cloth used for sports clothing, if the moisture permeability is insufficient, sweating increases under severe exercise conditions. At this time, there is a problem in that the clothes are filled with water vapor, which eventually causes dew condensation, thereby increasing the discomfort of the wearer. Therefore, it has been known to apply a coating or a laminate of a moisture-permeable and waterproof material to a sports clothing fabric.
However, at present, existing acrylic resin-coated fabrics and urethane resin-coated fabrics have not always achieved satisfactory results with respect to the above-described dew condensation problem. Therefore, higher anti-condensation properties are always required for sports clothing fabrics.
[0008]
[Patent Document 1]
JP-A-5-156570
[Patent Document 2]
JP-A-2002-201571
[Patent Document 3]
JP-A-9-59872
[0009]
[Problems to be solved by the invention]
Therefore, an object of the present invention is to provide a versatile and heat-insulating / cooling material or fabric that can exhibit excellent heat-insulating / cooling properties in any scene for any fabric, and use these materials or fabrics. Is to provide clothing that is worn.
[0010]
[Means for Solving the Problems]
The present inventors have conducted intensive studies in order to solve the above-mentioned problems, and as a result, have found the following heat retaining / cooling materials, and have reached the present invention.
[0011]
Therefore, the present invention provides a heat insulating / cooling material including two resin layers and a resin block containing a thermal buffer substance disposed between the resin layers.
[0012]
The present invention also provides a heat insulating / cooling fabric in which a fiber base material is laminated on the heat insulating / cooling material of the present invention.
[0013]
The present invention further provides a garment including the above-mentioned heat insulating / cooling material or the heat insulating / cooling cloth.
[0014]
BEST MODE FOR CARRYING OUT THE INVENTION
In the present invention, the resin layer may be a resin film layer, and its form and type are not particularly limited. Therefore, as the resin constituting the film, polyurethane, polyamide, polyester, acrylic, synthetic rubber, vinyl chloride, polytetrafluoroethylene, and the like can be used, and are not particularly limited. Further, it may be a nonporous membrane, a microporous membrane, or a combination thereof, and is not particularly limited.
[0015]
Among them, those having waterproofness, those having moisture permeability are preferably used, and moisture-permeable polyurethane resin, hydrophilic polyester resin, and microporous polytetrafluoroethylene are preferably used, In order to further provide dew condensation preventing properties, it is preferable to use a water-swellable polyurethane resin or a laminate of such a polyurethane resin and polytetrafluoroethylene.
[0016]
Further, the two resin layers may be made of the same material or different materials, and are not particularly limited.
[0017]
A heat buffering substance is a substance capable of buffering a temperature change against a sudden external temperature change, thereby reducing a temperature impact on a human body or the like, for example, from a solid to a liquid or from a liquid to a solid. And a substance that can utilize latent heat generated when a phase change occurs. This heat buffering substance protects the body from rapid temperature changes due to the latent heat generated when the phase changes from solid to liquid or from liquid to solid. Further, even if the state of the phase does not greatly change like a solid to a liquid, it may be one that can use latent heat when the state of a crystal such as a glass transition point changes.
[0018]
In the case of using a heat buffering substance utilizing such a phase change, although the temperature varies depending on the use environment of a product manufactured using the obtained heat retaining material, it is generally the temperature in clothing that the human body feels comfortable. A material that changes phase at a temperature of about 30 ° C., for example, a material having a melting point or a glass transition point in such a range of temperature is preferable because it can cope with a wide range of environments. However, if necessary, when using between a very cold environment and a slightly cold environment, use a substance having a melting point at a temperature lower than the above, or when using between a very hot environment and a hot environment. A substance having a higher melting point than the above may be used. Specifically, paraffin is preferably used as a phase change substance from a liquid to a solid, and a substance obtained by chemically bonding a phase change substance to an acrylic resin or a polyurethane resin is preferably used as a substance utilizing a change in a crystalline state. Can be
[0019]
Other heat buffering substances include those containing water or water and carboxymethylcellulose or a salt thereof, or carboxyvinyl polymer, starch, polyvinyl alcohol, polyacrylic acid, metals or polyhydric alcohol as required. Further, if necessary, a substance obtained by using glycerin fatty acid ester, sucrose fatty acid ester, surfactant or the like as a raw material may be mentioned, and a gelled substance is preferably used.
[0020]
The above-mentioned heat buffer substance may be used in combination. Further, the above-mentioned heat buffering substance may be used by being encapsulated in microcapsules of about 5 to 200 μm.
[0021]
The resin constituting the resin mass containing the heat buffering substance used in the present invention is not particularly limited as long as it can mix the heat buffering substance. What can be done is good. Examples of such a resin include a two-component urethane resin, a hot-melt urethane resin, a nylon resin, a polyester resin, an acrylic resin, an epoxy resin, a silicone resin, a vinyl acetate resin, and a rubber-based adhesive.
[0022]
Here, when the heat buffering substance itself becomes a resin mass, there is no need to mix it with another resin, and in this case, the heat buffering substance acts as an adhesive for the two resin layers. Is preferred.
[0023]
In the heat insulating / cooling material of the present invention, the amount of the heat buffering substance contained in the resin mass is preferably 1 to 100 parts by mass with respect to the resin solids constituting the resin mass, From the viewpoint, it is more preferably 30 to 100 parts by mass.
[0024]
Further, it is preferable that the resin mass containing the heat buffering substance is present at an interval from one another in a boundary region between the two resin layers. Here, that the resin mass exists at intervals means that the resin mass and the outer periphery of the resin mass do not have to be in contact with each other at least a little, and the entire outer periphery is covered by another resin mass. If not.
As the form of the resin mass, for example, a dot shape such as a circle, a quadrangle, a triangle, a star, or the like, or a shape constituted by a grid line is preferable. It is more preferable that the distance between the resin lump and the outer periphery of the resin lump is 10 to 10000 μm from the viewpoint of heat retention and cold insulation. Although the reason is not clear, it is recognized that if the entire surface is covered with the heat buffering resin, even if the amount of the heat buffering substance per unit area of the heat insulating / cooling material is large, the heat insulating / cooling property is inferior. Has been. It is preferable that an air layer exists between the resin blocks.
[0025]
Further, not only from the viewpoint of heat retention / cooling retention, but also from the viewpoint of texture, since the resin mass is present at intervals, a soft heat retention / cooling retention material can be obtained.
[0026]
The thickness of the heat retaining / cooling material may be set according to the intended use or required performance, but is preferably 5 to 100 μm, more preferably 10 to 50 μm, from the viewpoint of heat retaining / cooling properties. Note that the thickness of the heat insulating / cooling material refers to the thickness of the entire material including a resin mass containing a heat buffering substance and two resin layers sandwiching the resin mass. Although the reason is not clear, if the thickness of the heat insulating / cooling material exceeds 100 μm, the heat insulating / cooling property may decrease, and if the thickness is less than 5 μm, handling may be difficult.
[0027]
The heat insulating / cooling material of the present invention comprises two resin layers and a resin block containing a heat buffering substance disposed between the resin layers as constituent units. A resin mass containing a heat buffering substance is disposed on at least one of the resin layers, and a layer made of a structural unit having a resin layer formed thereon may be further laminated thereon, or a layer made of such a structural unit may be formed. Further, it may be laminated thereon. Further, the resin layer constituting the heat retaining / cooling material of the present invention may be composed of two or more resin layers having different constitutions.
[0028]
Further, the heat retaining / cooling material of the present invention preferably contains an infrared absorber in at least a part of the resin layer and / or the resin mass from the viewpoint of improving the heat retaining / cooling properties. On the other hand, the heat retaining / cooling fabric of the present invention preferably contains an infrared absorbent in at least a part of the resin layer and / or in the resin mass and / or in the fiber base material. As the fiber base material containing the infrared absorber, those obtained by kneading the infrared absorber into the fibers constituting the fiber base material or those obtained by applying the infrared absorber via a binder or the like to the surface of a fiber or woven or knitted fabric And the like. The infrared absorber is not particularly limited, but metal oxide fine particles, carbon black, an infrared absorbing dye of an organic compound, and the like can be used. Among these infrared absorbers, metal oxide-based fine particles often have both infrared absorption performance and infrared reflection performance, and are particularly preferable. Specifically, metal oxide-based fine particles having a particle diameter of 100 nm or less, such as antimony-doped tin oxide (ATO) and tin-doped indium oxide (ITO), are preferably used. Such metal oxide-based fine particles are also a transparent material that transmits visible light, and are also preferable in that they do not change the hue of the material itself. In addition, carbon black, which is generally used as a black pigment, is also an effective infrared absorber, and is preferably used when the hue of the material is not required or when the hue of the fiber base material is dark, such as black, navy, or engineered. Is done.
[0029]
The amount of the infrared absorbent to be applied is 0.1 g / m2 based on the heat-retaining / cooling material or the heat-retaining / cooling fabric. ² ~ 100g / m ² It is preferred that
[0030]
In the heat retaining / cooling fabric of the present invention, the fiber base material may be laminated on one surface of the heat retaining / cooling material, or may be laminated on both surfaces.
[0031]
As the fiber base material, synthetic fibers such as polyester, nylon, and aromatic polyamide; semi-synthetic fibers such as acetate; regenerated fibers such as rayon; natural fibers such as cotton, silk, and wool; , And the like, and are not particularly limited. Further, the fiber base material may be in any form such as a woven fabric, a knitted fabric, and a nonwoven fabric.
[0032]
The present invention further provides a garment including the above-mentioned heat retaining / cooling material or the heat retaining / cooling cloth. Examples of such clothes include underwear such as jumpers, anoraks, ski wear, snowboard wear, etc., as well as sportswear such as jogging wear, baseball uniforms, lager shirts, soccer uniforms, and T-shirts. Examples of the clothing include general clothing, general clothing, and clothing used under severe conditions. These garments can achieve an excellent buffering effect against various temperature changes, such as when moving from a hot environment to a cold environment or from a cold environment to a hot environment, and are comfortable for the wearer. .
[0033]
In the heat-retaining and cold-retaining fabric of the present invention, the moisture permeability is 2,000 g / m 2 by the calcium chloride method. ² ・ 24 hrs or more, 2000 g / m2 by potassium acetate method ² It is preferably 24 hours or more, the water pressure resistance is preferably 1000 mm or more, and the moisture permeability is 3000 g / m3 by the calcium chloride method. ² ・ 24 hrs or more, 20,000 g / m 2 by the potassium acetate method ² -It is particularly preferable that it is 24 hrs or more and the water pressure resistance is 20000 mm or more. Such a heat-retaining / cooling-retaining fabric has not only high heat-retaining / cooling-retaining properties, but also a soft texture, excellent moisture-permeable and waterproof properties, and excellent dew-condensation prevention properties. It becomes high performance and extremely useful as clothing.
[0034]
In addition to the clothing, the heat-retaining / cooling material and fabric of the present invention may be used in applications where excellent heat-retaining / cooling properties and dew condensation prevention properties are desired, such as curtains, futons (futon covers, futon side cloths, futon inners). Etc.), thermal insulation covers, gloves and the like.
[0035]
Next, the present invention will be further described with reference to an example of a method for producing a heat retaining / cooling material according to the present invention.
[0036]
The resin film constituting the resin layer can be manufactured by extrusion molding with a T-die, calender molding, inflation molding, or the like, in addition to a method of applying one-liquid solvent-type urethane on release paper. There is no particular limitation as long as a resin film can be formed. The resin film may be stretched in a uniaxial or biaxial direction, if necessary.
[0037]
When using a method of applying one-liquid solvent-type urethane on release paper, a resin solution is applied on release paper and dried at about 50 to 150 ° C. for 15 seconds to 10 minutes to obtain a thin urethane of about 1 to 100 μm. A resin film is obtained.
[0038]
A heat buffer substance or a mixture of the heat buffer substance and the resin is applied to one surface of the resin film obtained by the above method. Means for applying the heat buffering substance or the mixture of the heat buffering substance and the resin to the resin film include a gravure coater, a spray, a rotary screen, and the like, and it is preferable to use a gravure coater.
[0039]
1cm when applied in the form of dots with a diameter of 0.8mm using a gravure coater ² A roll having about 64 dots can be used. Approximately 20 g / m when wet with this roll ² Of the coating amount. After the application, the coating is dried at a temperature of about 50 to 150 ° C. for 15 seconds to 10 minutes. Of course, the size and the number of the above-mentioned dots are examples, and are not particularly limited.
[0040]
Further, another resin film is manufactured and bonded to the surface of the previously obtained resin film on which the heat buffering substance or the mixture of the heat buffering substance and the resin is applied. When the heat buffering substance is applied in a state of being mixed with a urethane-based adhesive, the lamination is simplified because no separate adhesive is required. However, the lamination method is not limited to this.For example, when at least one of the resin layers has a heat-fusing property, a dot-shaped heat buffering substance or a heat buffering substance and a resin may be used. A laminate may be formed by adhering the resin layers to each other via a mixture of the above or directly without any intervention.
[0041]
The resin film structure obtained in this way contributes to heat retention and cold retention. This resin film component alone may be used as a heat-retaining / cooling material, but it can be used as a heat-retaining / cooling fabric because its strength is improved by bonding it to a fiber base material such as a woven or knitted fabric or a nonwoven fabric. Can be.
[0042]
For bonding the heat insulating / cooling material and the fiber base material, a method of bonding the resin layer constituting the heat insulating / cooling base material and the fiber base material by a known method can be used. For example, in the case of manufacturing a heat retaining / cooling material by a method of applying a resin solution on release paper to form a resin layer, a resin layer that is not a resin layer that provides a resin mass containing a heat buffering substance is used. After applying the adhesive and laminating with the fiber base material, the release paper is peeled off, and the resin mass containing the heat buffering substance of the resin layer to which the release mass has been applied and the surface to which the release paper has been applied is arranged. A resin solution for forming a resin layer on the fiber base material, directly forming a resin layer on the fiber base material, and extruding the resin layer with a T-die. A method of laminating directly on a fiber base material, manufacturing a heat-retaining / cooling material, then bonding this to the fiber base material using an adhesive, or laminating the fiber base material by sewing, etc. Laminating fiber base material on cold insulating material It can be.
[0043]
When an infrared absorber is also provided at the same time, an infrared absorber may be added to the resin for forming the resin layer, or a resin solution for forming a resin mass containing a heat buffering substance. When adding an infrared absorber or spinning a fiber for a fiber base material, an infrared absorber is added to the spinning resin, or an infrared absorber is applied to a fiber base material such as a woven fabric, a knitted fabric, or a nonwoven fabric through a binder resin. Any method, such as applying an absorbent, can be used.
[0044]
【Example】
Hereinafter, the present invention will be further described with reference to examples.
[0045]
There is a part that has not been well analyzed with respect to the mechanism relating to heat retention / cold retention in the present invention. As for the evaluation of heat retention, a method according to ASTM and a method according to JIS L1096 have been proposed, but no correlation is observed between the heat retention in actual wearing and the model measurement using the former device. Was. Therefore, the heat retention / cold retention in the present invention is based on the result of measuring the temperature change at the time of actual wearing by a human as described below.
[0046]
As a garment (one piece of kappa (without lining or batting)), a cloth in which the heat insulating material according to the present invention is adhered to the cloth, and a cloth in which one resin layer is adhered to the cloth as a comparison (hereinafter referred to as blank) Is sewn so as to be symmetrical.
[0047]
Instead of sticking the temperature sensor directly on the skin, put on the underwear and fleece, and then wear the garment. If a temperature sensor is applied directly on the skin, the body temperature will be measured, and it will not be evaluated for heat retention.
[0048]
The sensor attachment position is symmetrical around the back scapula. Human body temperature varies from place to place. This can be seen by photographing the back of the human body with an infrared camera, but there is considerable variation even near the same scapula, so we use 16 sensors, 8 on each side, showing the 8 sensors. The average value was taken as the temperature at that time, and data was collected by measuring every 5 seconds. As the number of tests increased, reproducible data could be collected even in tests using the human body. In addition, a thermocouple is used as a sensor.
[0049]
In addition, since the heat retention in the present invention is considered to be due to heat storage, in a room at 30 ° C., the temperature of both the blank and the heat-retaining / cooling fabric was kept almost constant, and then the room was moved to a room at 10 ° C. The temperature change was measured. When the temperature change is small and the temperature at the time of measurement is higher, it can be determined that the heat retention is high. In addition, even if there is heat retention, the temperature difference with the non-insulation material to be compared (hereinafter, referred to as blank) disappears in a short time, or the temperature aiming at the heat retention becomes lower than the blank. There were some cases. Therefore, after measuring for 1 hour, the maximum temperature difference during the measurement time (= temperature on the side using the heat insulating material−temperature on the blank side) and temperature difference after 1 hour (= temperature on the side using the heat insulating material) -Temperature on blank side) was used as an index of heat retention.
[0050]
Example 1
On a release paper TP-D (manufactured by Lintec), 100 parts by weight of a one-component solvent-type polyurethane resin LQ582 (manufactured by Sanyo Chemical Industries), which is commercially available as a urethane resin for a moisture-permeable waterproof fabric, is used to adjust viscosity. 70 g / m of a solution obtained by adding 40 parts by weight of methyl ethyl ketone and 10 parts by weight of dimethylformamide as a diluting solvent. ² And dried at 100 ° C. for 3 minutes to form a resin layer having a thickness of 10 μm. Next, 100 parts by weight of a two-component solvent-type polyurethane resin US642 (manufactured by Seiko Chemical Industries, Ltd.), which is commercially available as a urethane resin for a moisture-permeable waterproof fabric, is mixed with 60 parts by weight of toluene as a diluting solvent for adjusting viscosity and a polyisocyanate crosslinking agent. A solution obtained by adding 10 parts by weight of Coronate HL (manufactured by Nippon Polyurethane) and catalyst HI215 (manufactured by Dainichi Seika Kogyo Co., Ltd.) is applied by a gravure coater so as to form dots, and dried at 100 ° C. for 3 minutes.
[0051]
A taffeta woven fabric (density: 76 × 90 / inch) made of 100% polyester was applied to this, and aged in an oven at 60 ° C. for 24 hours.
[0052]
Next, the attached fabric is peeled from the release paper.
[0053]
Separately, on a release paper TP-D (manufactured by Lintec), 100 parts by weight of a one-component solvent-type polyurethane resin LQ582 (manufactured by Sanyo Chemical Industries), which is commercially available as a urethane resin for a moisture-permeable waterproof fabric, is subjected to viscosity adjustment. Of 40 parts by weight of methyl ethyl ketone and 10 parts by weight of dimethylformamide as a diluting solvent for ² And dried at 100 ° C. for 3 minutes to form a resin layer having a thickness of 10 μm. Next, 20 parts by weight of toluene as a diluting solvent for adjusting viscosity and 20 parts by weight of a polyisocyanate crosslinking agent were added to 100 parts by weight of a two-component solvent-type polyurethane resin US642 (manufactured by Seiko Chemical Industries, Ltd.) which is commercially available as a urethane resin for a moisture-permeable waterproof fabric. A gravure coating machine was added with 10 parts by weight of Coronate HL (manufactured by Nippon Polyurethane), catalyst HI215 (manufactured by Dainichi Seika Kogyo), and 80 parts by weight of Idemitsu Polymer (manufactured by Idemitsu Technofine) as a thermal buffer substance. It is applied so as to form dots and dried at 100 ° C. for 3 minutes.
[0054]
To this, the fabric to which the polyurethane film was pasted was pasted so that the polyurethane film side of the fabric became the pasting surface, and the fabric was aged in an oven at 60 ° C. for 24 hours, and the heat insulating / cooling material was attached to the fiber cloth. A cold insulating fabric was obtained. The thickness of the obtained heat insulating / cooling material is 25 μm, the diameter of the resin mass (the diameter of the circle of this disk is approximately on the disk due to bonding), and the distance between the resin mass and the outer periphery of the resin mass is approximately 800 μm. It was about 400 μm.
[0055]
One garment (without lining or batting) was manufactured using this heat retaining / cooling fabric and the blank described above, and the temperature difference between the blank portion and the heat retaining / cooling fabric portion was compared. As a result, it was found that the maximum temperature difference was 3 ° C., and that after 1 hour was 1 ° C.
[0056]
In addition, the blank was created as follows.
[0057]
On a release paper TP-D (manufactured by Lintec), 100 parts by weight of a one-component solvent-type polyurethane resin LQ582 (manufactured by Sanyo Chemical Industries), which is commercially available as a urethane resin for a moisture-permeable waterproof fabric, is used to adjust viscosity. A solution obtained by adding 40 parts by weight of methyl ethyl ketone and 10 parts by weight of dimethylformamide as a diluting solvent was added at 70 g / m 2. ² And dried at 100 ° C. for 3 minutes. Next, 100 parts by weight of a two-component solvent-type polyurethane resin US642 (manufactured by Seiko Chemical Industries, Ltd.), which is commercially available as a urethane resin for a moisture-permeable waterproof fabric, is mixed with 60 parts by weight of toluene as a diluting solvent for adjusting viscosity and a polyisocyanate crosslinking agent. A solution obtained by adding 10 parts by weight of Coronate HL (manufactured by Nippon Polyurethane) and catalyst HI215 (manufactured by Dainichi Seika Kogyo Co., Ltd.) is applied by a gravure coater so as to form dots, and dried at 100 ° C. for 3 minutes.
[0058]
A taffeta woven fabric (density: 76 × 90 / inch) made of 100% polyester was applied to this, and aged in an oven at 60 ° C. for 24 hours.
[0059]
Next, the attached fabric is peeled from the release paper.
[0060]
Example 2
On a release paper TP-D (manufactured by Lintec), 100 parts by weight of a one-component solvent-type polyurethane resin LQ582 (manufactured by Sanyo Chemical Industries), which is commercially available as a urethane resin for a moisture-permeable waterproof fabric, is used to adjust viscosity. 70 g / m of a solution obtained by adding 40 parts by weight of methyl ethyl ketone and 10 parts by weight of dimethylformamide as a diluting solvent. ² And dried at 100 ° C. for 3 minutes. Next, 100 parts by weight of a two-component solvent-type polyurethane resin US642 (manufactured by Seiko Chemical Industries, Ltd.), which is commercially available as a urethane resin for a moisture-permeable waterproof fabric, is mixed with 60 parts by weight of toluene as a diluting solvent for adjusting viscosity and a polyisocyanate crosslinking agent. A solution obtained by adding 10 parts by weight of Coronate HL (manufactured by Nippon Polyurethane) and a catalyst HI215 (manufactured by Dainichi Seika Kogyo) is applied by a gravure coater so as to form dots, and dried at 100 ° C. for 3 minutes.
[0061]
A taffeta woven fabric (density: 76 × 90 / inch) made of 100% polyester was applied to this, and aged in an oven at 60 ° C. for 24 hours.
[0062]
Next, the attached fabric is peeled from the release paper.
[0063]
Separately, on a release paper TP-D (manufactured by Lintec), 100 parts by weight of a one-component solvent-type polyurethane resin LQ582 (manufactured by Sanyo Chemical Industries), which is commercially available as a urethane resin for a moisture-permeable waterproof fabric, is subjected to viscosity adjustment. 40 parts by weight of methyl ethyl ketone and 10 parts by weight of dimethylformamide as a diluting solvent, and 7.5 parts by weight of an ATO fine particle toluene dispersion (metal oxide type fine particles having a diameter of 50 nm or less and a solid content of 55%) as an infrared absorber. 70 g / m ² And dried at 100 ° C. for 3 minutes. Next, 20 parts by weight of toluene as a diluting solvent for adjusting viscosity and 20 parts by weight of a polyisocyanate crosslinking agent were added to 100 parts by weight of a two-component solvent-type polyurethane resin US642 (manufactured by Seiko Chemical Industries, Ltd.) which is commercially available as a urethane resin for a moisture-permeable waterproof fabric. A gravure coating machine was added with 10 parts by weight of Coronate HL (manufactured by Nippon Polyurethane), catalyst HI215 (manufactured by Dainichi Seika Kogyo) and 80 parts by weight of Idemitsu Polymer (manufactured by Idemitsu Technofine) as a heat buffer substance. It is applied so as to form dots and dried at 100 ° C. for 3 minutes.
[0064]
The fabric to which the polyurethane film was previously adhered was adhered to the polyurethane film so that the polyurethane film side became the adhered surface, and was aged in a 60 ° C. oven for 24 hours.
[0065]
The heat retention of this construction was 5 ° C. with a maximum temperature difference of 2 ° C. after 1 hour as compared with the blank described below.
[0066]
Comparative Example 1
The same operation as in Example 1 was repeated, except that the heat-buffering substance was not added to the resin mass in Example 1, and 30 parts by weight of toluene was added instead for adjusting the viscosity.
[0067]
The heat retention of this construction was 0 ° C. with a maximum temperature difference of 0 ° C. after 1 hour compared to the blank.
[0068]
Comparative Example 2
In Example 1, the adhesive of Example 1 containing a heat buffering substance was wet and was not in a dot shape, but was 90 g / m2 on the entire surface of the resin layer. ² The same operation as in Example 1 was repeated except that the coating was performed so that
[0069]
The heat retaining property of this structure was 1 ° C. at the maximum temperature difference compared to the blank, but after 1 hour, it was lower than the blank, and was −1 ° C.
[0070]
Comparative Example 3
In Example 1, the adhesive of Example 1 containing a thermal buffer substance was wet, not dot-shaped, but 200 g / m2 on the entire surface of the resin layer. ² The same operation as in Example 1 was repeated except that the coating was performed so that
[0071]
The heat retention of this construction was 2 ° C. at the maximum temperature difference compared to the blank, but after 1 hour, it was lower than the blank, and was −2 ° C.
[0072]
In Comparative Examples 2 and 3, the reason why the temperature is lower than that of the blank is not well understood, but it is presumed that this is probably a result of a heat radiation effect similar to that of a radiator.
[0073]
【The invention's effect】
If a work jumper or the like is manufactured using the heat-retaining / cooling fabric of the present invention, before or after the work, or even during the work, the heat-retaining property is exhibited even in an environment that was conventionally felt cold, and the cold To create a more comfortable environment. In addition, because it is excellent in heat retention, it does not use down or reduces the amount of use for products that used downs and batting in the past, so it is lighter and has less stiffness etc. It is possible to provide excellent clothes and the like.
[0074]
In particular, when you go out of the room on a cold winter day, it cools down, but the way it cools down is slower than conventional heat insulation materials, and the cooling on the body gradually reduces the burden on the body , Can reduce fatigue. In addition, the temperature which finally becomes constant is extremely high in a material having the same thickness.
[0075]
Therefore, according to the present invention, since the weight of the product can be reduced and the volume can be reduced, exercise clothing such as skiwear excellent in mobility, portability, heat retention and waterproofness, work jumpers such as anorak, tents, etc. , Gloves and the like can be provided.

Claims

A heat insulating / cooling material including two resin layers and a resin block containing a thermal buffer substance disposed between the resin layers.
The heat insulation / cooling material according to claim 1, wherein the resin mass containing the heat buffering substance is present at an interval from each other in a boundary region between the two resin layers.
The heat insulating / cooling material according to claim 1, having a thickness of 5 to 100 μm.
The heat insulating / cooling material according to any one of claims 1 to 3, wherein an infrared absorber is contained in at least a part of the resin layer and / or the resin mass.
A heat-retaining / cooling fabric in which a fiber base material is laminated on the heat-retaining / cooling material according to any one of claims 1 to 4.
The heat-retaining / cooling fabric according to claim 5, wherein an infrared absorber is contained in at least a part of the resin layer and / or in the resin mass and / or in the fiber base material.
And a moisture permeability 2000 g ^/ m 2 · 24hrs or more calcium chloride method, and the potassium acetate method 2000 g ^/ m 2 · 24hrs or more, water resistance pressure is above 1000 mm, insulation-cold according to claim 5 or 6 Fabric.
And a moisture permeability 3000 g ^/ m 2 · 24hrs or more calcium chloride method, and the potassium acetate method 20000 g ^/ m 2 · 24hrs or more, water pressure resistance is at least 20000 mm, warmth, cold resistant fabric according to claim 7 .
A garment comprising the heat retaining / cooling material according to any one of claims 1 to 4 or the heat retaining / cooling fabric according to any one of claims 5 to 8.