JP2014235783A - Sheet-like heater, heating method of sheet-like heater, ware with built-in heater, heating method of ware with built-in heater, and measurement method using ware with built-in heater - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a sheet-like heater having high heat insulation and flexibility, familiar to the skin, and allowing for the start/stop control of heating at an arbitrary timing, and easy integration with a ware, and a heating method of the sheet-like heater, and to provide a ware with a built-in heater, a heating method of a ware with a built-in heater, and a measurement method using a ware with a built-in heater.SOLUTION: A sheet-like heater 4 is composed of fibers or a cloth coated with a conductive polymer. In a heating method of the sheet-like heater 4, voltage application terminals 6A, 6B are installed at more than one positions of the sheet-like heater 4, and a voltage is applied to the voltage application terminals 6A, 6B.

Description

  The present invention relates to a sheet heater, a heating method for the sheet heater, a heater built-in wear, a heater built-in wear heating method, and a measurement method using the heater built-in wear.

  Generally, the body is warmed during and after an activity in a low-temperature environment such as outdoor work in a cold region or sports in winter. Pre-activity exercises and warming up the body will help prevent falls and improve exercise effects. Examples of the method for warming the body include a method of wearing a disposable body warmer, a portable body warmer, and the like (see, for example, Patent Document 1). In addition, with the progress of material development, a lot of wear using materials with high heat retention properties has been developed, and a method of wearing the wear is also mentioned as a method for warming the body. In particular, since the occurrence of the Great East Japan Earthquake in 2011, there has been an increasing need for highly heat-resistant clothing for saving the amount of power and energy resources other than power. Wear with high heat retention is particularly preferred for the elderly, and can improve the blood circulation of the wearer while eliminating stiff shoulders.

  As such highly heat-insulating clothing, motorcycle jackets, socks, gloves and the like having a heat generation function equipped with a heater using micro carbon fiber are manufactured and sold. In addition, many wears that use waterproof and moisture-permeable materials have been developed as highly heat-resistant wears. The waterproof and moisture permeable material is a material with excellent heat retention property that allows water vapor from the body to permeate without allowing water from the outside to permeate inside. For this reason, wear using a waterproof and moisture-permeable material is worn during winter sports such as skiing or mountain climbing (see Non-Patent Document 1, for example).

JP 07-289580 A

Entrant, [online], Toray, [May 22, 2013 search], Internet (http://www.transientrant.com/jp/entrant/ent_002.html)

In order to warm the body, it is more effective to wear clothing with high heat retention as underwear.
However, the conventional disposable warmers have a problem that once opened, heat generation cannot be interrupted, and the use must be continued even when unnecessary. In addition, when a disposable body warmer is used in close contact with the body, there is a risk of skin irritation and low temperature burns caused by the adhesive used in the body warmer. Furthermore, since the disposable body warmers become waste after the completion of heat generation as the name suggests, there are cases where hesitates to use them continuously. There are rechargeable and oil-type portable warmers, but they are all made of hard materials and are not familiar with the skin. In the first place, since disposable warmers and portable warmers are not integrated with wear, they must be worn separately from wear.

  On the other hand, a heater made of carbon fiber and a wear fitted with the heater are hard to touch and are easily deteriorated by frequent washing, and are not suitable for wearing as underwear. In addition, when these heaters or the heaters are used as outerwear, there is a problem that the heat retaining effect is lower than that of underwear and the cost is increased.

  The present invention solves the problems in the prior art described above, has high heat retention and flexibility, is easy to adjust to the skin, can control the start and stop of heat generation at any timing, and is easy to integrate with the wear It is an object of the present invention to provide a sheet heater, a heating method for the sheet heater, a heater built-in wear, a heating method for the heater built-in wear, and a measurement method using the heater built-in wear.

The sheet heater of the present invention is characterized by being composed of a fiber or cloth coated with a conductive polymer.
Thereby, the softness | flexibility by a conductive polymer is provided to a sheet-like heater, and it becomes easy to adjust to skin. In addition, the entire sheet heater composed of fibers or cloth coated with a conductive polymer can be energized, and the sheet heater can generate heat. Furthermore, since the sheet-like heater is made of a fiber or cloth coated with a conductive polymer, it is easily processed into various forms and integrated with the wear.
In the sheet heater of the present invention, the conductive polymer preferably includes poly (3,4-ethylenedioxythiophene) / poly (4-styrenesulfonic acid).
Thereby, the further flexibility and stability and biocompatibility by poly (3,4-ethylene dioxythiophene) / poly (4-styrenesulfonic acid) are provided to a sheet-like heater.

The heating method for a sheet heater according to the present invention is characterized in that a voltage application terminal is installed at two or more locations of the sheet heater and a voltage is applied to the voltage application terminal.
Thereby, active voltage application is performed to the whole sheet-like heater via the voltage application terminal.

The heater built-in wear according to the present invention includes the sheet heater described above.
Thereby, since the sheet-like heater which becomes a heat-emitting part is attached to the wear, the heat retaining property is imparted to the wear without impairing the feel of the wear.
The heater built-in wear of the present invention may include two or more of the above sheet heaters.
Thereby, independent heat retention is provided to each mounting portion of the two or more sheet heaters with built-in heaters.

In the heating method of the heater built-in wear of the present invention, voltage application terminals are installed at two or more locations of the sheet-like heater mounted on the heater built-in wear, and a voltage is applied to the voltage application terminal. It is characterized by.
Accordingly, active voltage application is performed to the entire sheet heater via the voltage application terminal, and the sheet heater is heated and cooled, so that the temperature of the heater built-in hardware is freely controlled.
The method for heating a heater built-in ware according to the present invention is provided with a voltage application terminal at each of two or more locations of the sheet heater mounted on the heater built-in wear, and the voltage application for each sheet heater. The voltage may be applied to the terminals for use under the same conditions or different conditions.
As a result, a plurality of sheet-like heaters can be heated or cooled simultaneously or individually, so that the temperature for each mounting portion of each sheet-like heater of the built-in heater is freely controlled.

The measuring method using the heater built-in ware of the present invention is an electrocardiographic measurement and a heartbeat measurement simultaneously with the voltage application in the heating method of the heater built-in ware, or at a predetermined time interval from the voltage application. Either one is performed.
Thereby, the temperature control of the heater built-in wear is performed, and the wearer's body is warmed or cooled in accordance with the temperature change of the heater built-in wear. By acquiring a biological signal or the like at this time, one of electrocardiogram measurement and heartbeat measurement with respect to body temperature change is performed.

  ADVANTAGE OF THE INVENTION According to this invention, heat retention and flexibility are high, it is easy to adjust to skin, the start and stop of heat generation can be controlled at an arbitrary timing, and the sheet heater that can be easily integrated with the wear, and the sheet heater A heating method, a heater built-in wear, a heater built-in wear heating method, and a measurement method using the heater built-in wear are provided.

It is sectional drawing which shows the sheet-like heater to which this invention is applied. It is a schematic diagram for demonstrating the heating method of the sheet-like heater to which this invention is applied. It is another schematic diagram for demonstrating the heating method of the sheet-like heater to which this invention is applied. It is a figure which shows the heater built-in clothing which applied this invention, Comprising: (a) is a top view at the time of seeing from the surface, (b) is a top view at the time of seeing from the back surface. It is a figure for demonstrating the heating method of the heater built-in clothing which applied this invention, (a) is a top view at the time of seeing from an inner surface, (b) is a plane at the time of seeing from an inner back surface FIG. It is a figure for demonstrating the measuring method using the heater built-in clothing which applied this invention, (a) is a top view at the time of seeing from an inner surface, (b) is the case at the time of seeing from an inner back surface It is a top view. It is a graph which shows the elapsed time dependence of the temperature change of the center part of the sheet-like heater in Example 1. FIG. It is a schematic diagram which shows the installation state of the sheet-like heater in Example 2 and 3. FIG. It is a graph which shows the elapsed time dependence of the heart rate measured using the heater built-in wear in Example 3. It is a schematic diagram for demonstrating the method to measure the moisture content of the sheet-like heater in Example 4. FIG. It is a graph which shows the measurement result of the moisture content of the sheet-like heater in Example 4, Comprising: (a) is a measurement result at the time of installing with a waterproof moisture-permeable processed cloth down, (b) is waterproof moisture-permeable It is a measurement result at the time of installing with a work cloth up.

  Hereinafter, the sheet-like heater to which the present invention is applied, the heating method for the sheet-like heater, the heater built-in wear, the heating method for the heater built-in wear, and the measurement method using the heater built-in wear are shown in FIGS. Refer to and explain. 1 to 6, the same components are denoted by the same reference numerals, and the description thereof is omitted. Note that the drawings used in the following description are schematic, and the dimensions, ratios, and the like of length, width, and thickness are not necessarily the same as actual ones.

  A sheet heater 4 according to an embodiment to which the present invention is applied will be described with reference to FIG.

  As shown in FIG. 1, the sheet heater 4 includes a conductive cloth 1 and a conductive cloth 2.

  The conductive cloth 1 is a cloth composed of fibers coated with the conductive polymer by a method such as impregnating the conductive polymer. As the conductive polymer, for example, one selected from the group consisting of polyaniline, polyacetylene, polypyrrole and (3,4-ethylenedioxythiophene) / poly (4-styrenesulfonic acid) (hereinafter referred to as PEDOT-PSS). One kind or a mixture of two or more kinds may be mentioned. From the viewpoint of increasing the flexibility / stability and biocompatibility of the sheet heater 4, the conductive polymer preferably contains PEDOT-PSS. Examples of the fibers coated with the conductive polymer include one or more selected from the group consisting of cotton, hemp, wool, silk, rayon, polynosic, cupra, acetate, nylon, polyester, acrylic, vinylon, and polypropylene. Can be blended with these fibers.

Here, Table 1 shows the Young's modulus of carbon fiber (carbon fiber), natural fiber, and synthetic fiber. The carbon fibers in Table 1 are commercially available high-strength carbon fibers (trade name: T50S, manufactured by Mitsubishi Rayon Co., Ltd.). The Young's modulus of each material in Table 1 is calculated as 100 kg / mm ² = 1 GPa.

  As shown in Table 1, the Young's modulus of carbon fiber is 240 GPa ("carbon fiber material", [online], [May 13, 2013 search], Internet, <URL: http: // www. .Or.jp / lib / jamagazine / 201002 / 05.html> etc.). On the other hand, for example, the Young's modulus of silk, which is a natural fiber, is 6.5 GPa to 12 GPa, the Young's modulus of polyester, which is a synthetic fiber, is 3.1 GPa to 8.7 GPa, and the Young's modulus of rayon is 4 GPa to 9.GPa. 5GPa ("silk", "rayon", [online], [searched on May 13, 2013], Internet, <URL: http://www.shirasaki.co.jp/sinsyo/seni-syurui- see seinou.html> etc.). Thus, natural fibers and synthetic fibers exemplified in Table 1 have a much lower elastic modulus than carbon fibers, that is, carbon fibers. The inventors' research has confirmed that these natural fibers and synthetic fibers impregnated with the conductive polymer have a Young's modulus comparable to that of natural fibers and synthetic fibers (Tsukada S). , Nakashima H, Torimitsu K, “Conductive Polymer Combined Silk Fiber Bundle for Biological Signal Recording, 4” PLO SONE, Public Libr. Therefore, the conductive cloth 1 is easy to adjust to the skin and has flexibility suitable for wearing as underwear.

  The conductive cloth 2 is laminated in contact with one surface of the conductive cloth 1 and is coated with the conductive polymer by a method such as impregnating the conductive polymer in the same manner as the conductive cloth 1. It is a cloth composed of fibers. Examples of the conductive polymer include one kind or a mixture of two or more kinds different from the conductive cloth 1 selected from the group consisting of polyaniline, polyacetylene, polypyrrole and PEDOT-PSS. In addition, the fiber coated with the conductive polymer is, for example, a conductive cloth selected from the group consisting of cotton, hemp, wool, silk, rayon, polynosic, cupra, acetate, nylon, polyester, acrylic, vinylon, and polypropylene. One or two or more types of fibers different from 1 may be mixed.

  The conductive cloth 1 and the conductive cloth 2 are bonded by adhesive fibers 3. The material of the adhesive fiber 3 is not particularly limited as long as it is a material capable of firmly bonding the conductive cloth 1 and the conductive cloth 2, but an adhesive using porous fibers in order to increase conductivity. Alternatively, it is more desirable to use an adhesive having a low viscosity and entering the fibers of the conductive cloth. Examples of the material of the adhesive fiber 3 include a non-woven fiber iron adhesive tape, a non-woven fiber double-sided tape, and a hot bond.

  Next, a heating method of the sheet heater 4 of the present embodiment will be described with reference to FIG.

  First, as shown in FIG. 2, voltage application terminals 6 </ b> A and 6 </ b> B are provided at two or more locations of the sheet-like heater 4. For example, metal snaps can be used as the voltage application terminals 6A and 6B. Specifically, the voltage application terminals 6A and 6B are attached to two or more locations on the surface of the conductive cloth 2 opposite to the surface in contact with the conductive cloth 1, respectively. Further, the voltage application terminals 6 A and 6 B and the conductive cloth 1 are connected by the silver coat yarn 5.

  The material for the voltage application terminals 6A and 6B is not particularly limited as long as it is a metal having conductivity, but, for example, copper, silver, aluminum, gold, a metal whose surface is coated with gold, or stainless steel is excellent in conductivity. A metal is mentioned.

  Next, the wiring 7 is connected to the voltage application terminals 6 </ b> A and 6 </ b> B of the sheet heater 4, and the power supply 8 is installed between the wirings 7. In addition, a thermometer 9 for measuring the temperature of the sheet-like heater 4 is installed at a distance from the surface of the conductive fabric 1 opposite to the surface in contact with the conductive fabric 2.

  Next, a voltage is applied from the power supply 8 to the voltage application terminals 6A and 6B through the wiring 7. As the voltage to be applied, any one of a constant voltage, a pulse voltage, a voltage modulated in a predetermined pattern, or the like is appropriately selected in consideration of a temperature control condition of the sheet heater 4 and the like. In this way, the conductive cloths 1 and 2 are energized to cause the sheet heater 4 to generate heat, and the temperature is controlled by adjusting the voltage. After a predetermined time has elapsed, the application of voltage from the power supply 8 to the voltage application terminals 6A and 6B is stopped. By stopping the voltage application to the voltage application terminals 6A and 6B, the energization of the conductive cloths 1 and 2 is stopped, and the temperature of the conductive cloths 1 and 2 is lowered to the temperature before the energization. The temperature change of the sheet-like heater 4 can also be acquired by performing temperature measurement using the thermometer 9 at the same time as the voltage application or at a certain time interval from the voltage application time.

  In the heating method for the sheet heater 4 of the present embodiment, as shown in FIG. 3, the switch 10 is provided in the wiring 7 connecting the voltage application terminal 6A and the power supply 8, and the voltage application terminal 6B and the power supply are provided. The thermostat 11 may be provided in contact with at least one of the conductive cloth 1 and the conductive cloth 2 on the wiring 7 that connects to the wiring 8. By using the switch 10, voltage application to the sheet heater 4 is switched on / off. Further, by using the thermostat 11, voltage application to the sheet heater 4 is turned on / off according to the temperature of the conductive cloth 1 or the conductive cloth 2, and the temperature of the sheet heater 4 is kept constant.

Next, the heater built-in wear 50 of this embodiment will be described with reference to FIG.
The heater built-in wear 50 includes a sheet heater 4, and the wear 30 has the sheet heater 4 built therein.

  Specifically, as shown in FIG. 4, the heater 50 with built-in heater has two sheet-like heaters 4 </ b> A and 4 </ b> B mounted inside the front surface 30 a of the wear 30, and one sheet inside the back surface 30 b of the wear 30. A heater 4C is attached. Examples of the wear 30 include underwear such as running, T-shirts, blouses and the like, but are not particularly limited to these clothes. Examples of a method of attaching the sheet heaters 4A, 4B, and 4C to the wear 30 include stitching and adhesion using an adhesive that can withstand warming and does not impair the feel of the sheet heaters 4A, 4B, and 4C. It is done.

  Next, a method of heating the heater built-in wear 50 according to the present embodiment will be described with reference to FIG.

  First, as shown in FIG. 5, the voltage application terminals 6A and 6B are connected to the sheet heaters 4A, 4B and 4C of the heater-incorporated wear 50, respectively. However, illustration of the voltage application terminals 6A and 6B is omitted in FIG. Subsequently, the wiring 7 is connected to the voltage application terminals 6 </ b> A and 6 </ b> B, and the power supply 12 is installed between the wirings 7. Accordingly, the power supplies 12A, 12B, and 12C are connected to the sheet-like heaters 4A, 4B, and 4C of the heater built-in wear 50 of the present embodiment. The power supplies 12A, 12B, and 12C can be applied with a sufficient voltage to obtain a heat generation amount for warming the body without overheating the sheet-like heaters 4A, 4B, and 4C, and are small power supplies excellent in portability. Is used. Examples of such a small power source include dry batteries and button batteries.

  Next, a voltage is applied from the power supplies 12A, 12B, and 12C to the sheet heaters 4A, 4B, and 4C through the wiring 7 and the voltage application terminals 6A and 6B. The voltage to be applied is any one of a constant voltage, a pulse voltage, a voltage modulated in a predetermined pattern, etc. in consideration of the temperature control conditions of the sheet heater 4 in accordance with the heating conditions of the heater built-in wear 50. One is selected and used as appropriate. In this way, the temperature is controlled by causing the sheet heater 4 to generate heat and adjusting the voltage. After a predetermined time has elapsed, the application of voltage from the power supplies 12A, 12B, 12C to the sheet heaters 4A, 4B, 4C is stopped. By stopping the voltage application, the temperature of the sheet heaters 4A, 4B, 4C is lowered and returned to the temperature before energization. The voltage pattern applied to the sheet heaters 4A, 4B, 4C, the duration of voltage application, etc. may all be the same in the sheet heaters 4A, 4B, 4C, and any two of the sheet heaters 4A, 4B, 4C. The two sheet heaters may be the same, or may be different for each of the sheet heaters 4A, 4B, and 4C.

  Next, a measurement method using the heater built-in wear 52 of the present embodiment will be described with reference to FIGS. Note that, among the components such as the heater built-in wear 52 and peripheral devices shown in FIG. 6, the same components as those in the heater built-in wear 50 and peripheral devices shown in FIG. To do.

  In the measuring method using the heater built-in wear 52 of the present embodiment, as shown in FIG. 6, two sheets are provided not only inside the front surface 30a of the wear 30 of the heater built-in wear 50 shown in FIG. The heater built-in wear 52 to which the heaters 4C and 4D are attached is used.

  First, the person to be measured is made to wear the heater built-in wear 52 shown in FIG. 6 as underwear, and the sheet-like heaters 4A, 4B, 4C, and 4D of the heater 4A, 4B, 4C, and 4D are heated in the same manner as the heating method of the heater built-in wear 50 shown in FIG. Voltage application terminals 6A and 6B are installed at two or more locations, respectively. However, illustration of the voltage application terminals 6A and 6B is omitted in FIG. Subsequently, the wiring 7 and the power supplies 12A, 12B, 12C, and 12D are connected to the voltage application terminals 6A and 6B of the sheet heaters 4A, 4B, 4C, and 4D of the heater built-in wear 52, respectively. Further, a measuring device 14 such as a heart rate monitor is connected between the sheet heaters 4A and 4B of the heater built-in wear 52, and a measuring device 14 such as a heart rate monitor is connected between the sheet heaters 4C and 4D.

  Next, the heating method of the heater built-in ware 52 is performed in the same process as the heating method of the heater built-in ware 50 described above. Measurement of heart rate and the like from the measuring instrument 14 at the same time as the voltage is applied to the voltage application terminals 6A, 6B of the sheet heaters 4A, 4B, 4C, 4D or at a predetermined time interval from the time of voltage application. Get the data. In this way, one of electrocardiogram measurement and heartbeat measurement is performed.

The sheet heater 4, the heating method for the sheet heater 4, the heater built-in wear 50, the heater built-in wear 50 heating method, and the measurement method using the heater built-in wear 52 have been described above.
The sheet-like heater 4 of this embodiment is composed of a fiber or cloth coated with a conductive polymer, and the sheet-like heater 4 is provided with conductivity by the conductive polymer and flexibility by the fiber or cloth. Therefore, it becomes easy to adjust to the skin. Further, the entire sheet-like heater 4 composed of a fiber or cloth coated with a conductive polymer can be energized and can generate heat. Since the sheet-like heater 4 is in the form of a fiber or cloth, it can be installed with a sufficient and sufficient connection strength by, for example, tying the voltage application terminal and accessories to the fiber, or penetrating the cloth from both sides. It becomes possible. Furthermore, since the sheet heater 4 is made of a fiber or cloth coated with a conductive polymer, it is easily processed into various forms and integrated with the wear. Therefore, if the sheet-like heater 4 is processed into the shape of clothing, it is possible to provide a garment that has high heat retention and flexibility, and is sufficiently accustomed to the skin so that it does not rash or burn even if it contacts the skin. If the conductive polymer includes PEDOT-PSS, the sheet-like heater 4 is further provided with flexibility and stability and biocompatibility.

  Further, according to the heating method of the sheet heater 4 of the present embodiment, the voltage application terminals 6A and 6B are installed at two or more locations of the sheet heater 4 and a voltage is applied to the voltage application terminals 6A and 6B. Thus, active voltage application is performed on the entire sheet-like heater 4 via the voltage application terminals 6A and 6B. Thereby, the temperature of the sheet-like heater 4 can be freely controlled in accordance with the condition for warming the wearer's body and the location to be warmed.

  Moreover, since the heater 50 with a built-in heater includes the sheet heater 4, the wear 30 is equipped with the sheet heater 4 serving as a heat generating portion, and even when the wear 30 is underwear, the feel of the wear is impaired. In addition, heat retention is imparted to the wear 30. Since the sheet-like heater 4 is integrated with the wear 30, it is easy to attach. Thus, if the sheet-like heater 4 excellent in electroconductivity and flexibility is used, the heater built-in wear 50 that is lightweight and has a good wearing feeling and can be worn for a long time is provided. By making it usable as underwear, the wearer's body is directly warmed by the heat retaining effect of the heater built-in wear 50. In addition, if two or more sheet-like heaters 4A, 4B, and 4C are provided as in the heater built-in wear 50, independent heat retention is imparted to the respective mounting portions of the sheet-like heaters 4A, 4B, and 4C.

  Moreover, according to the heating method of the heater built-in wear 50 of this embodiment, the voltage application terminals 6A and 6B are installed at two or more locations of the sheet-like heater 4 attached to the heater built-in wear 50 to apply the voltage. By applying a voltage to the terminals 6A and 6B, an active voltage is applied to the sheet heater 4 via the voltage application terminals 6A and 6B. Therefore, the sheet-like heater 4 is heated and cooled at an arbitrary timing, and the temperature of the heater built-in wear 50 is freely controlled. By providing the thermostat 11 so as to be in contact with either the conductive cloth 1 or the conductive cloth 2 while being connected to the wiring 7, the occurrence of low-temperature burns due to the heater built-in wear 50 is also avoided.

  Moreover, according to the heating method of the heater built-in wear 50 of this embodiment, the voltage application terminals 6A and 6B are installed at two or more locations in each of the two or more sheet heaters 4A, 4B and 4C, and the sheet Since the sheet heaters 4A, 4B, and 4C are individually heated and heated by applying a voltage to the voltage application terminals 6A and 6B for each of the heaters 4A, 4B, and 4C under the same or different conditions, the heater is incorporated. The temperature of each wearing part of the sheet-like heaters 4A, 4B, 4C of the wear 50 is freely controlled. Furthermore, if the sheet-like heaters 4A, 4B, and 4C to which a voltage is applied using a switch or the like are switched, the portion to be heated in the heater built-in wear 50 can be easily switched.

  Further, according to the measurement method using the heater built-in wear 52 of the present embodiment, the electrocardiogram is performed simultaneously with the voltage application in the heating method of the heater built-in wear 52 or at a predetermined time interval from the voltage application. One of measurement and heart rate measurement is performed. Thereby, the temperature control of the heater built-in wear 52 is performed as described above, and the wearer's body is warmed or cooled as the temperature of the heater built-in wear 52 changes. By acquiring a biological signal or the like at this time, one of measurement results of electrocardiogram measurement and heartbeat measurement with respect to body temperature change is acquired.

  The preferred embodiments and the like of the present invention have been described in detail above. However, the present invention is not limited to the specific embodiments, and various modifications can be made within the scope of the gist of the present invention described in the claims. Can be modified or changed.

  For example, the voltage application terminals 6A and 6B of the sheet heater 4 may be provided so that the conductive cloth 1 and the conductive cloth 2 can be energized. The silver coat yarn 5 shown in FIG. It may be a metal snap that contacts the one surface of the conductive cloth 1 while penetrating through. Moreover, the sheet-like heater 4 may be comprised only with the conductive cloth 1 or the conductive cloth 2, and may be comprised with the laminated body of three or more types of conductive cloths. Furthermore, as a form of the sheet-like heater 4, it is possible to use a fiber coated with a conductive polymer as a yarn, and it is also possible to use a fiber knitted fiber or a non-woven fabric. Is possible.

  Further, for example, the sheet-like heater 4 of the heater-incorporated wear 50, 52 may be mounted anywhere as long as it is an inner surface of the wear 30, and the number of mounted heaters is not limited.

  The present invention will be described in detail by the following examples, but the present invention is not limited to these examples.

Example 1
First, a microfiber cloth (trade name: EXSEINE, manufactured by Toray Industries, Inc.) made of 65% polyester and 35% polyurethane was prepared and impregnated with a PEDOT-PSS dispersion (Heraus Co., Ltd.) to obtain a conductive cloth 1. In addition, a cloth for electronic handicraft (trade name: DEV-10055, manufactured by SparkFun) was prepared and coated with silver to form a conductive cloth 2. Next, the conductive cloth 1 and the conductive cloth 2 were bonded with a thin double-sided adhesive tape for cloth (manufactured by Kawaguchi Co., Ltd.). Thus, the sheet heater 4 shown in FIG. 1 was produced. The impedance between the voltage application terminals 6A and 6B was 2.0Ω.

  Next, two metal snaps for clothing were prepared as the voltage application terminals 6A and 6B, and installed at both ends of the conductive cloth 2 of the sheet-like heater 4 as shown in FIG. The silver coat yarn 5 was connected to the voltage application terminals 6A and 6B, and the conductive cloth 1 and the conductive cloth 2 were electrically connected using the silver coat yarn 5. A wiring 7 was connected to the voltage application terminals 6A and 6B at both ends of the conductive cloth 2, and a constant potential power source (model number: SPEC6806, manufactured by Metronics) was installed as the power source 8 therebetween. Further, as a thermometer 9 for measuring the temperature of the sheet heater 4, an infrared radiation type thermometer (model number: AD-5611A, manufactured by A & D Co., Ltd.) was installed. Thereafter, a voltage of 1.5 V was applied from the power source 8 to the voltage application terminals 6A and 6B, and the temperature of the sheet heater 4 was measured. FIG. 7 shows the measurement results of the temperature of the central portion of the conductive cloth 1 of the sheet-like heater 4 from the time of voltage application until 350 seconds have elapsed.

  As shown in FIG. 7, the temperature at the central portion of the conductive cloth 1 increased with time, and became constant at 36 ° C. after 350 seconds from the start of voltage application. That is, it was confirmed that the temperature of the sheet heater 4 was increased by applying a voltage from the voltage application terminals 6A and 6B. Thereafter, when application of voltage was stopped, it was confirmed that the temperature at the central portion of the conductive cloth 1 quickly returned to room temperature (18 ° C.).

  Next, after washing the sheet-like heater 4 by hand washing with a neutral detergent, a voltage of 1.5 V is applied from the power source 8 to the voltage application terminals 6A and 6B in the same manner as before. The temperature was measured. FIG. 7 shows the measurement results of the temperature of the central portion of the conductive cloth 1 of the sheet-like heater 4 from the time of voltage application until 350 seconds have elapsed. As shown in FIG. 7, the temperature change in the central part of the conductive cloth 1 of the sheet-like heater 4 after washing was substantially the same as before washing. From this result, it can be said that the temperature rise rate and the heat retention of the sheet-like heater 4 are hardly deteriorated by washing.

(Example 2)
Next, instead of the voltage application terminals 6A and 6B, the sheet-like heater 4 used in Example 1 penetrates the conductive cloth 2 and contacts one surface of the conductive cloth 1 as shown in FIG. The voltage application terminals 6E and 6F are installed. For the voltage application terminals 6E and 6F, metal snaps for clothing (trade name: American Hook, manufactured by Marusho Co., Ltd.) were used. Also, sports tank top clothing (manufactured by Wacoal Holdings Co., Ltd.) was prepared as the wear 30. Thereafter, the sheet-like heater 4 was attached to the inner surface of the wear 30 using adhesive fibers for handicrafts, and the heater built-in wear 50 shown in FIG. 4 was obtained.

  Subsequently, as shown in FIG. 5, a lithium button battery (model number: CR2032, as a power supply 12A, 12B, 12C is connected to the voltage application terminals 6E, 6F of the sheet heaters 4A, 4B, 4C of the heater 50 with built-in heater. Panasonic Corporation) was connected. When the surface temperature of the conductive cloth 1 of the sheet-like heaters 4A, 4B, 4C was measured every 5 seconds or 10 seconds using the same infrared radiation type thermometer as the thermometer 9 used in Example 1, the wiring 7 and It was confirmed that the temperature of the sheet heaters 4A, 4B, and 4C rose from the time when the power supplies 12A, 12B, and 12C were connected. Further, it was confirmed that when the power supplies 12A, 12B, and 12C were removed from the wiring 7, respectively, the temperature of the sheet heaters 4A, 4B, and 4C gradually decreased to room temperature (18 ° C.).

Example 3
Next, a sheet-like heater 4D having the same configuration as the sheet-like heater 4C is provided inside the back surface 30b of the wear 30 of the heater-containing wear 50 used in Example 2, and the sheet-like heaters 4C and 4D are attached to the wearer's wearer. It was attached to the position where both shoulders hit. In addition, a sports heart rate monitor (model number: RS800CX, manufactured by Polar Electro Japan Co., Ltd.) is connected as a measuring instrument 14 between the sheet heaters 4A and 4B, and the measuring instrument 14 is also interposed between the sheet heaters 4C and 4D. The same sports heart rate monitor was connected as a heater built-in wear 52 shown in FIG. The measurement subject was made to wear the heater built-in wear 52, and voltage was applied from the power supplies 12A, 12B, 12C to the voltage application terminals 6E, 6F (not shown) of the sheet heaters 4A, 4B, 4C, respectively, to perform heart rate measurement. At this time, as shown in FIG. 8, the skin S of the wearer of the heater built-in wear 50 comes into contact with the conductive cloth 1 of the sheet-like heater 4. The heart rate measured by the measuring instrument 14 connected to the sheet-like heaters 4A and 4B of the wear 30 of the heater built-in wear 50 is shown in FIG.

  As shown in FIG. 9, when the sheet-like heaters 4A and 4B were heated, the wearer's body of the heater built-in wear 52 was warmed, and the heart rate was relatively stable. From such a measurement result, it was confirmed that the heart rate of the wearer of the heater built-in wear 52 can be measured both when the sheet heaters 4A, 4B, 4C, and 4D are heated and not heated. .

Example 4
Next, as shown in FIG. 10, the adhesive fiber 3 is formed on the surface of the conductive cloth 2 of the sheet-like heater 4 used in Example 1 on the side opposite to the surface in contact with the conductive cloth 1. A cloth (trade name: entrant, manufactured by Toray Industries, Inc.) D (hereinafter referred to as waterproof / breathable cloth D), which has been subjected to waterproofing and moisture permeation using the double-sided adhesive tape for cloth used in Example 1, was adhered. . Subsequently, a metal snap for clothing used in Example 2 was prepared as the voltage application terminals 6E and 6F, and the waterproof and moisture permeable cloth D and the conductive cloth 2 were penetrated and brought into contact with the conductive cloth 1. . The voltage application terminals 6E and 6F were connected to the wiring 7 and the constant potential power source used in Example 1 as the power source 8. Thereafter, the conductive cloth 1 exposed on the surface of the sheet heater 4 is humidified with pure water W, and a voltage of 1.5 V is applied from the power source 8 to the voltage application terminals 6E and 6F. Heating was started. The amount of moisture contained in the sheet heater 4 is measured by changing the presence or absence of heating of the sheet heater 4 by applying a voltage and measuring the weight of the sheet heater 4 at the start of humidification of the conductive cloth 1 and during heating. Was measured. FIGS. 11A and 11B show the measurement results of the amount of water contained in the sheet heater 4 at the start of humidification of the conductive cloth 1 and after 20 minutes, 40 minutes, and 60 minutes from the start. FIG. 11A shows the measurement result when the waterproof and moisture permeable cloth D is installed on the lower side, that is, the floor, and the measurement is performed when the waterproof and moisture permeable cloth D is installed on the upper side, that is, the ceiling. It is a result.

  As shown in FIG. 11 (a), in the case where the waterproof and moisture-permeable cloth D is installed on the lower side, the evaporation of moisture in the measurement environment without heating the sheet heater 4 by applying voltage. Therefore, a decrease in the amount of water contained in the sheet heater 4 was observed. It was confirmed that when the sheet heater 4 was heated by voltage application, the weight of the sheet heater 4, that is, the amount of decrease in moisture contained in the sheet heater 4 increased. In addition, as shown in FIG. 11 (b), when the waterproof / moisture permeable cloth D is installed with the upper side facing up, the waterproof / moisture permeable cloth D is attached regardless of whether or not the sheet heater 4 is heated by voltage application. Although the amount of decrease in the weight of the sheet-like heater 4 was reduced as compared with the case where it was installed on the lower side, it was confirmed that the transpiration of moisture was promoted by the heating of the sheet-like heater 4.

By mounting the sheet-like heater of the present invention made of a soft material on the inside of the wear, it is possible to more easily realize the heater built-in wear having a high warming effect. If the sheet heater is used alone without being attached to the wear, it becomes a portable body warmer that can be operated with a button battery.
Further, by processing the sheet-like heater itself into a form such as underwear and using it as an underwear, it can be worn as an underwear for winter clothes, particularly in winter sports or outdoor work. The effect as a heater can be heightened by putting on underwear. Since the sheet-like heater can be easily washed at home, an underwear for cold wear that can be worn for a long period of time is provided, and the cost of the cold wear is reduced.

  Moreover, since metabolism can be raised by warming a body using the sheet-like heater of this invention, a wearer's motor function can be improved. In particular, the use of a sheet heater is expected to improve the muscle training effect for the elderly. That is, the sheet-like heater of the present invention, in addition to the conventionally known effects such as blood circulation promotion, includes measures for preventing muscle atrophy and muscle weakness due to aging and bedridden prevention for the elderly, muscle strengthening for healthy people, etc. May lead to one end. In addition, the combination of the sheet heater of the present invention and rehabilitation for the elderly is also useful for achieving the above effects.

  Furthermore, since the sheet heater of the present invention can also be used as an electrode for a biosensor, it is possible to measure a biosignal simultaneously at a plurality of locations of a living body by mounting a plurality of sheet heaters. In Example 3, the heart rate of a living body was measured using a sheet heater, but the sheet heater can also be used as a low-frequency treatment device by performing electrocardiogram measurement or applying a pulse voltage. In addition, by using a low-frequency treatment device having a heating function, it is possible to eliminate the stiff shoulder of the wearer, and it can be used as sleep introduction assistance at the time of sleeping by utilizing the fact that the heart rate decreases during sleep. Such a sheet heater, which warms the body by sleeping and before sleeping, and introduces the wearer to sleep more quickly. After sleeping, it automatically detects sleep from the heart rate and warms it up. Stop with a switch.

  Furthermore, the sheet-like heater of the present invention can be processed into gloves and socks as one piece of clothing. Since the sheet-like heater is made of a conductive cloth, the gloves configured with the sheet-like heater prevent the generation of static electricity, and the wearer can easily operate the smartphone. The sheet heater of the present invention is not limited to wear, and can be attached to bedding such as sheets and pillow covers, toilet seat covers, chairs and car seats, and can be directly processed into these forms.

  1, 2 ... conductive cloth, 3 ... adhesive fiber, 4, 4A, 4B, 4C, 4D ... sheet heater, 6, 6A, 6B, 6E, 6F ... voltage application terminal, 50, 52 ... heater built-in wear

Claims (8)

  A sheet heater comprising a fiber or cloth coated with a conductive polymer.   2. The sheet heater according to claim 1, wherein the conductive polymer contains poly (3,4-ethylenedioxythiophene) / poly (4-styrenesulfonic acid).   A heating method for a sheet heater, comprising: a voltage application terminal provided at two or more locations of the sheet heater according to claim 1 or 2; and a voltage is applied to the voltage application terminal.   A heater built-in ware comprising the sheet heater according to claim 1.   The heater built-in ware according to claim 4, comprising two or more sheet heaters according to claim 1 or 2.   A voltage application terminal is installed at two or more locations of the sheet heater mounted on the heater-equipped wear according to claim 4, and a voltage is applied to the voltage application terminal. Heating method.   A voltage application terminal is installed at each of two or more locations of the sheet heater mounted on the heater built-in wear according to claim 5, and the same condition or different conditions are applied to the voltage application terminal for each sheet heater. Heating method for heater built-in ware characterized by applying voltage with   The electrocardiographic measurement or the heartbeat measurement is performed simultaneously with the voltage application in the heating method of the heater-containing ware according to claim 6 or 7, or at a predetermined time interval from the voltage application. A measurement method using a heater built-in ware characterized by this.

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