JP2006348437A - Wear to be mounted on body - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a wear to be mounted on a body, which can smoothly produce steam from a thermal steamer in a thermal steamer-received state. <P>SOLUTION: This wear to be mounted on a body, having receivers for receiving thermal steamers capable of producing steam heated at a prescribed temperature and worn on a portion of a body, is characterized in that each of the receivers has an inner layer portion placed on the side near to the skin of a wearer and capable of penetrating the steam, and an outer layer portion placed on the side far from the skin of a wearer and capable of little penetrating the steam from the inner layer portion; each of the thermal steamers is held and received between the outer layer portion and the inner layer portion; and the wear to be mounted on the body has such a shape as forming spaces permitting the distribution of the steam between the inner layer portions and the body of the wearer. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

  The present invention relates to a body wearing tool in which a steam heating tool that gives steam temperature to the body is accommodated.

  There is known a type of wearing tool that contains a heating element that gives heat to the body and is worn on the body. For example, a thermal supporter has been proposed in which a bag portion is provided at a predetermined portion of a supporter body to be worn on a part of the body such as the elbow, knee, shoulder, and waist, and a thermal body is accommodated in the bag portion (Patent Literature). 1). The purpose of this heat supporter is to simultaneously apply the action of thermotherapy and the action as a supporter to the affected area of the joint so that the affected area can be treated by the synergistic effect of both actions.

  Moreover, it is the best type wearing tool worn through an arm, Comprising: The thing which provided the accommodating part which accommodates a temperature holding medium on the back part on both sides of an inner part and an outer part is proposed (refer patent document 2). In this wearing tool, the inner part of the storage part is formed using a highly breathable air-permeable material, and the outer part of the storage part is formed using a heat-retaining material having a higher heat-retaining property than the air-permeable material. This wearing tool aims to eliminate the uncomfortable feeling that the heating element hits the back.

Japanese Utility Model Publication No. 7-13314 JP 2002-317314 A

  Since each of the above-mentioned wearing tools is intended to accommodate a heating element that is not accompanied by the generation of water vapor, the wearing tool is in a state where the heating element and the body are in close contact with each other. The design is such that no voids are produced. However, no consideration is given to housing a steam heating device accompanied by the generation of water vapor.

  Accordingly, an object of the present invention is to provide a body wearing tool suitable for housing a steam heating tool accompanied by the generation of water vapor.

The present invention is a body wearing tool that has a housing portion of a steam heating device capable of generating steam heated to a predetermined temperature, and is worn on a part of the body,
The housing part is located on the side close to the wearer's skin and can transmit water vapor, and the outer layer part is located on the side far from the wearer's skin and has lower water vapor permeability than the inner layer part. The steam heating device is held and accommodated between the outer layer portion and the inner layer portion,
The body wearing tool provides a body wearing tool having a shape in which a space capable of circulating water vapor is formed between the inner layer portion and the wearer's body in a state where the body wearing tool is worn. Thus, the object is achieved.

The present invention also provides a steam heating tool capable of generating water vapor heated to a predetermined temperature, and a body wearing tool having a housing portion for the steam heating tool and worn on a part of the body. A warming wear tool,
The housing part is located on the side close to the wearer's skin and can transmit water vapor, and the outer layer part is located on the side far from the wearer's skin and has lower water vapor permeability than the inner layer part. The steam heating device is held and accommodated between the outer layer portion and the inner layer portion,
The body wearing tool is a body warming wearing tool having a shape in which a space capable of circulating water vapor is formed between the inner layer portion and the wearer's body in a state where the body wearing tool is worn. Is to provide.

  According to the present invention, since a space is formed between the steam heating tool and the body in a state in which the body wearing tool is worn, water vapor is smoothly generated from the steam heating tool. Moreover, heat transfer efficiency becomes high and the body can be warmed efficiently by filling the space with water vapor.

  Hereinafter, the present invention will be described based on preferred embodiments thereof. The body wearing tool of the present invention is worn on a part of the body. The body wearing device is generally a textile product, and includes clothing worn by a person on a daily basis and clothing worn for a special purpose. Examples of clothing include trousers, jackets, windbreakers, mufflers, shirts, pants, underwear, socks, hats, and the like. Examples of the accessory include a supporter, a belly wrap, a leg warmer, and a wristband. Although these clothing and accessories can be in various forms, the forms encompassed by the present invention are other than those that are in close contact with the wearer's body, as will be described later. In the examples to be described later, a pants (training pants) type body wear tool is cited as an example of the body wear tool.

  The body wearing tool of the present invention has a housing portion for the steam heating tool. The steam heating tool is capable of generating water vapor heated to a predetermined temperature. A steam heating tool generally generates water vapor by heat generation using chemical energy. For example, water vapor is generated using heat generated by an oxidation reaction of an oxidizable metal. 1 and 2 show an example of a steam heating device. In the following description, heat accompanied by the generation of water vapor is referred to as steam temperature, and heat not accompanied by the generation of water vapor is referred to as dry heat.

  The steam heating tool 1 shown in FIGS. 1 and 2 has a flat rectangular shape, and includes a heat generating portion 2 and a housing 3 for housing the heat generating portion 2. The container 3 has a flat bag shape, and a plurality of sheet materials are bonded together to form a hollow bag shape. The container 3 has a ventilation surface on one side, and a surface located on the opposite side of the ventilation surface is a difficult-to-vent surface that has lower air permeability than the ventilation surface. “Breath-resistant surface with lower air permeability than the air-permeable surface” means that (i) the air-impermeable surface has air-permeability, but the air-permeability surface is substantially lower than the air-permeable surface. It includes both cases where there is no air permeability. The heat generating portion contains water in addition to the oxidizable metal, and steam is generated by utilizing the heat generated by the heat generating portion in contact with oxygen. The water vapor is released to the outside from the ventilation surface of the container.

The container 3 is formed in a flat bag shape by joining the peripheral edges of the film 3a and the film 3b to each other. The film 3a is a moisture permeable film. The film 3b is a moisture permeable film having a moisture permeability lower than that of the film 3a or a hardly moisture permeable film. That is, in the container 3, one side has higher moisture permeability than the other side. The film 3a allows water vapor generated from the heat generating part 2 to pass through. However, the film 3b is difficult to pass water vapor. That is, a large amount of water vapor is preferentially released to the outside from one side of the container 3, that is, the film 3 a side. The steam heating tool 1 is used so that the film 3a side faces a body that is an object to which water vapor is desired. Moisture permeability (JIS Z0208,40 ℃, 90% RH ) of the side of the film 3a in container 3 is preferably 200~2000g / m ² · 24hr, further preferably 300~2000g / m ² · 24hr, and more preferably 500 ˜1200 g / m ² · 24 hr. On the outside of the film 3a and the film 3b, non-woven fabrics 3c and 3d such as air-through non-woven fabric, which is a sheet material having a good texture, are arranged for the purpose of enhancing the texture of the steam heating device 1.

  As a result of the study by the present inventors, when the waist and shoulders are warmed by steam heat, when the same part is warmed by dry heat of the same temperature, for example, compared to the case where the same part is warmed by a disposable warmer with less steam generation It was found that systemic circulation was promoted and peripheral temperature increased. It was also found that the temperature increase continued for several tens of minutes after the heating was stopped. When the present inventors examined this reason, it turned out that vapor | steam temperature heat | fever has high heat conductivity and can raise the temperature of the deep part of a human body. It is presumed that the temperature in the deep part of the human body increases, thereby stimulating the thermal center, thereby expanding blood vessels and increasing blood flow, and increasing peripheral temperature. Therefore, the steam heating device 1 is effective not only for the temperature rise and blood circulation improvement of the part of the human body to which the steam heating device 1 is applied, but also for the blood circulation improvement of the whole body, the peripheral temperature of fingertips and the like, and the cooling performance.

  Furthermore, as a result of the study by the present inventors, it has been found that if the steam heating device 1 is too close to the body, it may be difficult to release water vapor. Therefore, the body wearing tool of the present invention is designed to have a shape and size so that a space capable of circulating water vapor is formed between the wearing tool and the body when the body wearing tool is worn.

  FIG. 3 shows an embodiment of the body wearing tool of the present invention. The body wearing tool shown in FIG. 3 relates to a pants-type training pants 10 worn through both legs. The training pants 10 includes a waistline portion 11 and a pair of leg portions 12. The leg portion 12 has a cylindrical shape that covers a range from the wearer's thigh root to the heel. The leg part 12 is comprised from the upper leg part 12a which covers the range from a wearer's thigh root to the knee, and the lower leg part 12b which covers the range from a knee to a heel.

  A fastener 13 extending in the longitudinal direction is attached to the leg portion 12 at a position corresponding to the body side of the wearer. The fastener 13 is attached from the crotch part of the training pants 10 to the lower end part of the leg part 12. By attaching the fastener 13 in this way, the wearer's leg can be exposed without lifting the leg portion 12.

  FIG. 4 shows a state where the fastener 13 of the leg 12 is opened and the inner surface of the leg 12 is exposed. The leg 12 includes a front body 14 and a back body 15. The front body 14 and the back body 15 each have a housing 16 for the steam heating device 1. One accommodating portion 16 is provided in each of the upper leg portion 12a and the lower leg portion 12b in the front body 14 and the rear body 15, respectively. Accordingly, four accommodating portions 16 are provided on one leg portion 12.

  The accommodating part 16 is formed in the position corresponding to a wearer's thigh and lower leg when the training pants 10 are worn. Specifically, the two accommodating portions 16 provided in the upper leg portion 12a are located at positions corresponding to the front thigh and rear thigh in the wearer's thigh when the training pants 10 are worn. A pair is formed symmetrically so as to be positioned. Similarly, when the training pants 10 are worn, the two accommodating portions 16 provided in the lower leg 12b are also positioned at positions corresponding to the front lower leg and the rear lower leg in the wearer's lower leg. Thus, a pair is formed symmetrically in the front-rear direction.

  FIG. 5 shows a cross-sectional view taken along line VV in FIG. In FIG. 5, the upper side shows the inside of the training pants 10 and the lower side shows the outside of the training pants 10 in the figure. The accommodating part 15 has the inner layer part 17 located in the side near a wearer's skin, and the outer layer part 18 located in the side far from a wearer's skin. The inner layer portion 17 and the outer layer portion 18 have substantially the same shape. The inner layer portion 17 is made of a sheet material that can transmit water vapor. On the other hand, the outer layer portion 18 is made of a sheet material that does not substantially transmit water vapor.

  The inner layer portion 17 and the outer layer portion 18 are stitched along a stitch line 19. The shape drawn by the suture line 19 is larger than the dimension of the steam heating tool 1 accommodated in the accommodating portion 16. By steaming the inner layer portion 17 and the outer layer portion 18, the steam heating tool 1 is held and accommodated therebetween.

  The accommodating portion 16 has a vertically long opening 20 (see FIGS. 3 and 4) along the fastener 13. The opening 20 is formed by the inner layer portion 17 and the outer layer portion 18 being not stitched at a portion along the fastener 13. And the pocket-shaped accommodating part 16 is formed of the opening part 20 and the suture line 19 mentioned above. Four openings are provided in one leg 12. The steam heating tool 1 is accommodated in the accommodating portion 16 through the opening 20.

  When the steam heating tool 1 is housed in the housing portion 16, the film 3 a side of the steam heating tool 1, that is, the film side having a relatively high moisture permeability is directed to the inner layer portion 17 side of the housing portion 16. . As a result, water vapor generated from the heat generating portion 2 of the steam heating device passes through the moisture permeable film 3a and the inner layer portion 17 and is applied to the wearer's skin. From the viewpoint of preventing the permeation of water vapor, the inner layer portion 17 preferably has a sufficiently high air permeability. When the ease of water vapor permeation is expressed by, for example, the air permeability (JIS P8117), the air permeability (unit: seconds) of the inner layer portion 17 is preferably an extremely short time that is not more than the measurement limit. Examples of the sheet material having such air permeability include mesh fabric.

  On the other hand, the outer layer portion 18 in the housing portion 16 is located on the side far from the wearer's skin and has a lower water vapor permeability than the inner layer portion 17. The outer layer portion 18 has a function to keep the inside of the training pants 10 warm by applying the steam temperature generated from the steam heating device 1 to the wearer's body through the inner layer portion 17 without escaping to the outside. It is. From this point of view, “the outer layer portion 18 has lower water vapor permeability than the inner layer portion 17” means that even if the outer layer portion 18 is hardly moisture permeable or has moisture permeability, the moisture permeability is It means that the steam temperature generated from the steam heating tool 1 is low enough to keep the inside of the training pants 10 sufficiently without escaping to the outside. When the outer layer portion 18 is hardly permeable to moisture, it is preferable that the outer layer portion 18 is made of, for example, a cloth that does not allow water vapor or water to pass therethrough. When the outer layer portion 18 is moisture permeable, the outer layer portion 18 is preferably made of a fabric that allows a small amount of water vapor to pass therethrough but does not substantially allow water to pass therethrough. Examples of the fabric include Climb Proof (registered trademark) and Gore-Tex (registered trademark).

  The training pants 10 of the present embodiment have a shape in which a space capable of circulating water vapor is formed between the inner layer portion 17 and the wearer's body in a state where the training pants 10 are worn. The shape that forms a space through which water vapor can flow means a shape that is not in close contact with the wearer's body. The legs 12 of the training pants 10 have dimensions that are relaxed with respect to the wearer's thigh and lower leg. On the other hand, for example, wearing tools such as tights and supporters that are in close contact with the wearer's body are not shaped to form a space in which water vapor can flow.

  Due to the shape of the training pants 10 as described above, the steam heating device 1 and the wearer's body are appropriately separated from each other, and water vapor is stabilized in the body. . If the space between the inner layer portion 17 of the training pants 10 and the wearer's body is too small, it is difficult to release water vapor depending on the wearer's body pressure.

  When the pant 10 is worn in a state in which the steam heating tool 1 is housed in the housing part 16 of the training pant 10 having the above configuration, water vapor generated from the steam heating tool 1 is applied to the wearer's skin and the surface temperature of the skin is increased. To rise. Not only that, the deep temperature under the skin also rises. The training pants 10 of the present embodiment can be used for various purposes, and is particularly suitable for wearing for the purpose of warming the body when an athlete in the sports field warms up. In particular, it is effective in preventing the coldness of the body in winter, such as cooling of the body, cooling of the legs, and cooling of the muscles. In winter, there are many problems such as warming up, stiff muscles, stiff joints, and worries about muscle and tendon damage. By wearing the training pants 10 of this embodiment, such worries are resolved. Is done. As a result, there are advantages such as shortening and improving the warm-up time, preventing the body from cooling in winter, improving blood circulation, improving exercise ability, and preventing muscle and tendon breakdown.

  In particular, in the training pants 10 of the present embodiment, the accommodating portion 16 is formed symmetrically in the front and back thighs of the wearer's thigh and the front of the wearer's lower thigh Since the accommodating parts 16 are formed symmetrically in the front and rear in the lower leg part and the rear lower leg part, a comfortable warmth that envelops the entire leg can be obtained by accommodating the steam heating tool 1 in these accommodating parts 16. . Moreover, since the steam temperature that can effectively increase the deep temperature under the skin is applied to the wearer's body, the muscles and tendons of the wearer's legs are gradually warmed, and blood circulation is promoted. Therefore, muscle stiffness, fatigue, joint and lower back pain, etc. are effectively relieved.

The steam heating tool 1 housed in the housing 16 of the training pants 10 will be described in detail. The steam heating tool 1 is characterized by a long duration of steam generation. In order to obtain the steam heating device 1 having such water vapor generation characteristics, values such as mainly the amount of oxidizable metal used, the moisture content in the heat generating part 2 before heat generation, the moisture permeability in the breathable part of the container 3 and the like. It is important to control. In general disposable warmers, since the composition of the heat generating material and the structure of the container do not actively generate water vapor, the amount of water contained in the heat generating material is small. On the other hand, since the steam heating tool 1 actively generates water vapor, it has a heat generating material having a composition containing moisture as a raw material for water vapor in addition to water necessary for heat generation. In the steam heating device 1 in which values such as moisture content and moisture permeability are appropriately controlled, when this is applied to human skin, the release of water vapor with a skin surface temperature of 38 ° C. or higher is preferably 2 hours or longer, More preferably, it is maintained for 5 hours or more. Further, the cumulative amount of water vapor released 90 minutes after the heat-generating part 2 comes into contact with air is preferably 1.4 to 7.0 mg / cm ² , more preferably 2.2 to 7.0 mg / cm ^2. (This is hereinafter referred to as a water vapor release characteristic). The skin surface temperature refers to the temperature of the skin surface measured by a contact thermometer, for example, a thermocouple.

The cumulative amount of water vapor released in the water vapor release characteristic is measured by the following method. In a closed system having a volume of 54000 cm ³ (length 30 cm × width 50 cm × depth 36 cm) at a temperature of 20 ° C. and a humidity of 40% RH, the steam heating tool 1 is left to generate heat so that water vapor can evaporate inside. And the humidity of the air in the said closed system is measured with a hygrometer, and the amount of water vapor generated after the start of heat generation is obtained. The integrated value after 90 minutes is taken as the integrated release amount.

  The heat generating part 2 in the steam heating device 1 includes an oxidizable metal, a reaction accelerator, a fibrous material, and an electrolyte, and is in a water-containing state. The heat generating part 2 is configured by containing an electrolyte aqueous solution in a molded sheet containing an oxidizable metal, a reaction accelerator and a fibrous material. As a result of studies by the present inventors, among these various materials, materials that greatly affect the water vapor release characteristics of the steam heating tool 1 are oxidizable metals, reaction accelerators, and fibrous materials contained in the molded sheet. It has been found. Specifically, the amount of the oxidizable metal contained in the molded sheet is preferably 60 to 90% by weight, more preferably 70 to 85% by weight, and the amount of the reaction accelerator is preferably 5 to 25% by weight, more preferably. It is important that the amount of the fibrous material is 8 to 15% by weight, preferably 5 to 35% by weight, and more preferably 8 to 20% by weight. If the amount of these materials is in the above range, desired water vapor release characteristics and temperature duration can be expected. As will be described later, since the molded sheet is preferably obtained by papermaking, it contains 5% by weight or less of moisture in the state after the drying step in the papermaking process.

  The weight ratios of the reaction accelerator and the fibrous material with respect to the oxidizable metal also affect the water vapor release characteristics of the steam heating device 1. Specifically, in the heat generating part 2, the weight ratio of the reaction accelerator to the oxidizable metal is preferably 0.08 to 0.3, and more preferably 0.09 to 0.25. The weight ratio of the fibrous material to the oxidizable metal is preferably 0.08 to 0.3, and more preferably 0.09 to 0.29. Within these ranges, it is easy to improve the skin surface temperature to 38 ° C. or higher and obtain a desired water vapor generation amount.

  Other important factors that affect the water vapor release characteristics of the steam heating device 1 include the concentration of the aqueous electrolyte solution and the amount of the aqueous electrolyte solution added in the heating section 2. Specifically, the concentration of the aqueous electrolyte solution in the heat generating part 2 is preferably 1 to 15% by weight, more preferably 2 to 10% by weight. If the concentration of the aqueous electrolyte solution is within this range, an economically desired temperature can be obtained. The electrolyte aqueous solution is preferably added in an amount of 30 to 80 parts by weight, more preferably 40 to 70 parts by weight, based on 100 parts by weight of the molded sheet. Within this range, the desired temperature can be maintained and a water vapor generation amount can be obtained.

  The details of each material included in the heat generating part 2 will be described. Examples of the oxidizable metal include powders and fibers of iron, aluminum, zinc, manganese, magnesium, calcium, and the like. Among these, iron powder is preferably used in terms of handleability, safety, and manufacturing cost. When the oxidizable metal is a powder, the particle size is preferably 0.1 to 300 μm because the fixing property to the fibrous material and the control of the reaction are good. For the same reason, it is also preferable to use a material having a particle size of 0.1 to 150 μm containing 50% by weight or more.

  As the reaction accelerator, it is preferable to use a reaction accelerator that functions as a water retention agent and also has a function as an oxygen retention / supply agent for the oxidizable metal. For example, activated carbon (coconut shell charcoal, charcoal powder, calendar bituminous coal, peat, lignite), carbon black, acetylene black, graphite, zeolite, perlite, vermiculite, silica and the like can be mentioned. Among these, activated carbon is preferably used because it has water retention ability, oxygen supply ability, and catalytic ability. The particle size of the reaction accelerator is preferably 0.1 to 500 μm from the viewpoint that it can effectively contact the oxidizable metal. For the same reason, it is also preferable to use a material containing 50% by weight or more of 0.1 to 200 μm.

  As the fibrous material, a natural or synthetic fibrous material can be used without any particular limitation. Examples of natural fibers include cotton, kabok, wood pulp, non-wood pulp, peanut protein fiber, corn protein fiber, soy protein fiber, mannan fiber, rubber fiber, hemp, manila hemp, sisal hemp, New Zealand hemp, rabu hemp, Plant fibers such as eggplant, igusa and straw are listed. Further, animal fibers such as wool, goat hair, mohair, cashmere, alkapa, Angola, camel, vicuuna, silk, feathers, down, feather, algin fiber, chitin fiber, and casein fiber can be mentioned. Furthermore, mineral fibers, such as asbestos, are mentioned. On the other hand, examples of the synthetic fibrous material include semi-synthetic fibers such as rayon, viscose rayon, cupra, acetate, triacetate, oxide acetate, promix, chlorinated rubber, and hydrochloric acid rubber. Moreover, synthetic polymer fibers such as polyester such as nylon, aramid, polyvinyl alcohol, polyvinyl chloride, polyvinylidene chloride, and polyethylene terephthalate, polyacrylonitrile, acrylic, polyethylene, polypropylene, polystyrene, and polyurethane can be used. Furthermore, metal fiber, carbon fiber, glass fiber, etc. can also be used. Moreover, the collection | recovery reuse goods of these fibers can also be used. Among these, wood pulp, cotton, and polyester are preferably used from the viewpoints of fixability with an oxidizable metal and a reaction accelerator, flexibility of the heat generating portion 2, oxygen permeability, production cost, and the like. The fibrous material preferably has an average fiber length of 0.1 to 50 mm, particularly 0.2 to 20 mm, from the viewpoint of ensuring the strength of the heat generating portion 2 and the water dispersibility of the fibrous material.

  Examples of the electrolyte include alkali metal, alkaline earth metal or transition metal sulfates, halides, and the like. Among these, chlorides of alkali metals, alkaline earth metals or transition metals are preferably used from the viewpoint of excellent chemical stability and production cost, especially sodium chloride, potassium chloride, calcium chloride, magnesium chloride, ferrous chloride. Ferric chloride is preferably used.

  Additives usually used in papermaking, such as a flocculant, a sizing agent, a colorant, a paper strength enhancer, a yield improver, a filler, a thickener, a pH control agent, a bulking agent, etc. A thing can also be added without a restriction | limiting in particular.

  There is no restriction | limiting in particular in the manufacturing method of the heat-emitting part 2. FIG. Since a heat generating part is made by containing an electrolyte aqueous solution in a molded sheet containing an oxidizable metal, a reaction accelerator and a fibrous material, it first contains an oxidizable metal, a reaction accelerator and a fibrous material. A sheet-like heat generating part is obtained by forming a molded sheet and adding an aqueous electrolyte solution to the molded sheet. For the production of the molded sheet, for example, a wet papermaking method described in Japanese Patent Application Laid-Open No. 2003-102761 or an extrusion method using a die coater according to the previous application of the present applicant can be used. In particular, it is preferable to use a wet papermaking method from the viewpoint of manufacturing cost and productivity. When performing the wet papermaking method, a circular paper machine, a long paper machine, a short paper machine, a twin wire paper machine, or the like can be used. The slurry used for papermaking contains an oxidizable metal, a reaction accelerator, a fibrous material, and water, and its concentration is 0.05 to 10% by weight, particularly 0.1 to 2% by weight. Is preferred.

The molded sheet thus obtained (that is, the heat generating portion 2 in a state prior to water inclusion) has a thickness of 0.1 mm to 2 mm, particularly 0.15 to 1.5 mm. It is preferable in that the molded sheet becomes flexible while maintaining the desired strength, and the steam heating device 1 is easily fitted to the application site of the body. Molded sheet for the same reason, it is preferable that the basis weight of 10 to 1000 g / m ^2, more preferably from 50~600g / m ^2, and still more preferably from 100 to 500 g / m ^2.

  The molded sheets may be used by overlapping a plurality of sheets as they are, or may be used by stacking a plurality of molded sheets folded and folded. In this case, in order to prevent misalignment between the sheets during use of the steam heating tool 1, it is preferable to integrate the sheets by embossing. Further, it is possible to prevent the positional deviation from occurring by giving the above-described holes and cuts to the sheet.

  The molded sheet thus obtained is made to contain an aqueous electrolyte solution to obtain a sheet-like heat generating portion 2. This step is preferably performed in an inert gas atmosphere such as nitrogen or argon. In order to contain the electrolyte aqueous solution, for example, a method by directly discharging from a nozzle, a spray coating method, a method of coating with a brush, a method of immersing in an electrolyte aqueous solution, a gravure coating method, a reverse coating method, a doctor blade method and the like can be mentioned. . The concentration of the electrolyte in the aqueous electrolyte solution and the applied amount of the aqueous electrolyte solution are adjusted so that the amount of the electrolyte and the water content in the heat generating portion 2 to be obtained are in the ranges described above.

  As mentioned above, although this invention was demonstrated based on the preferable embodiment, this invention is not restrict | limited to the said embodiment. For example, in the above-described embodiment, the accommodating portion 16 is provided at a position corresponding to the thigh and lower leg of the wearer, and the steam heating device 1 is accommodated therein. The accommodating portion 16 may be provided only at a position corresponding to any of the portions. Moreover, as shown in FIG. 6, you may provide the accommodating part 16 also in the knee part between a thigh and a leg part. That is, the accommodating part 16 can be provided in three places, a thigh part, a knee part, and a leg part. Or you may provide an accommodating part in the position corresponding to at least one of these three places.

  Further, in the above embodiment, the accommodating portion 16 is provided at a position corresponding to the front thigh and rear thigh in the wearer's thigh and the front lower leg and rear lower thigh in the lower thigh, However, instead of this, the storage part 16 is provided only at a position corresponding to either the front thigh or the rear thigh, or the front lower leg or the rear lower leg. You may provide the accommodating part 16 only in the position corresponding to either. In the case where the housing part is also provided in the knee, the housing part may be provided only in either the front knee part (patellar part) or the rear knee part (popliteal area), or a pair of storage parts may be provided symmetrically in the longitudinal direction. It may be provided.

  In addition, the storage portion was formed in a pair of symmetrically in the front-rear direction at a position corresponding to at least one of the thigh, knee and lower leg of the wearer, but is not limited thereto, and is not limited to the leg axis. A pair of accommodating portions may be formed symmetrically. For example, with respect to the thigh, a pair of accommodating portions can be formed at positions corresponding to the outer thigh and the inner thigh. Similarly, for the lower leg part, a pair of accommodating parts can be formed at positions corresponding to the outer lower leg part and the inner lower leg part.

  Further, in the above-described embodiment, the accommodation portion 16 is formed by stitching the inner layer portion 17 and the outer layer portion 18, but instead, the inner layer portion 17 is formed in an open bag shape, and the bag shape The inner layer portion 17 may be disposed inside the outer layer portion 18 so that the opening communicates with the opening portion 20 to form the accommodating portion.

  Moreover, in the said embodiment, although the sheet-like heat generating part was used as the heat generating part 2 of the steam heating tool 1, it can replace with this and a powder-like heat generating part can also be used. Similar to the sheet-like heat generating part, the powder-like heat generating part contains an oxidizable metal, a reaction accelerator, an electrolyte, and water. However, the sheet-like heat generating portion includes a fibrous material in addition to these components, whereas the powder-like heat generating portion includes a water retention material instead of the fibrous material. Examples of water retention agents include water-absorbing polymers, vermiculite, calcium silicate, silica gel, and alumina. Among these, it is preferable to use a water-absorbing polymer from the viewpoints of high retainability and excellent productivity.

  Moreover, although the said embodiment is an example which applied the body wearing tool of this invention to the trousers type training pants, this invention can be applied similarly to other body wearing tools. For example, the present invention can be similarly applied to shirts worn on the skin, loose supporters, leg warmers, stomach wraps, and socks.

  Hereinafter, the present invention will be described in more detail with reference to examples. However, the scope of the present invention is not limited to such examples.

[Example 1 and Comparative Example 1]
<Slurry blending>
・ Oxidizable metal: iron powder, manufactured by Dowa Iron Mining Co., Ltd., trade name “RKH”, 150 g
-Fibrous material: Pulp fiber (NBKP, manufactured by Schina Co., Ltd., trade name “Skina”, average fiber length = 2.1 mm), 30 g
-Reaction accelerator: activated carbon, manufactured by Nippon Enviro Chemicals Co., Ltd., trade name “Carborafyn”), 20 g
Flocculant: sodium carboxymethyl cellulose (Daiichi Kogyo Seiyaku Co., Ltd., trade name “Serogen” WS-C) 0.5 g, and polyamide epichlorohydrin resin (Seiko PMC Co., Ltd., trade name “WS4020”) 0.5g
・ Water: Industrial water, 99800g

<Paper making conditions>
Using the slurry, paper was made at a line speed of 7 m / min with a slanted short net paper machine to produce a wet shaped sheet.

<Dehydration and drying conditions>
It was sandwiched with felt and dehydrated under pressure, passed through a heating roll at 120 ° C. at a line speed of 7 m / min, and dried until the water content became 5% by weight or less to obtain a molded sheet. The composition of the molded sheet is shown in Table 1 below.

<Electrolytic aqueous solution addition conditions>
After superposing four obtained molded sheets, 60 parts by weight of the following aqueous electrolyte solution was impregnated with respect to 100 parts by weight of the molded sheet to produce a heat generating sheet. Table 1 shows the blending ratio of each component in the heat generating sheet.

<Electrolyte>
Electrolyte: Purified salt (NaCl)
Water: Industrial water Electrolyte concentration: 5% by weight

<Containment in container>
A rectangular container 3 shown in FIGS. 1 and 2 was manufactured. As the moisture-permeable sheet 3a, a moisture-permeable film made of polyethylene (TSF-EU manufactured by Kojin Co., Ltd .: moisture permeability of 900 g / m ² · 24 hr, air permeability of 10,000 seconds / 100 cm ³ ) was used. As the hardly moisture permeable sheet 3b, a laminate product of a spunbonded nonwoven fabric (Elves manufactured by Unitika Ltd., basis weight 30 g / m ² ) and a non-moisture permeable low density polyethylene film (basis weight 34 g / m ² ) is used. It was. As the nonwoven fabric 3c, a spunbond nonwoven fabric (Elves manufactured by Unitika Ltd., basis weight 30 g / m ² ) was used. The exothermic sheet was accommodated in this container. Thereby, the steam heating tool shown in FIG.1 and FIG.2 was obtained.

<Containment in training pants>
The obtained steam heating tool was accommodated in the accommodation part of training pants shown in FIGS. 3 to 5 (a total of 8 places on the left and right leg parts). The inner layer of the training pants was made of mesh. On the other hand, for the outer layer portion, a proof proof (registered trademark), which is a polyester fabric, was used. This dough allows a small amount of water vapor to permeate but does not substantially permeate water.

  The training pants in which the steam heating device was accommodated were worn on the panel, and the skin temperatures of the front thigh, the back thigh, and the back thigh were measured in an environment of 5 ° C. (Example 1). The result is shown in FIG. In addition, the same measurement was performed by wearing training pants that did not contain steam heating equipment (Comparative Example 1). The result is shown in FIG.

[Comparative Example 2]
Instead of the steam heating tool used in Example 1, a dry heat type heat sheet (dry heat sheet) was prepared and used. As in Example 1, this dry heat sheet is a sheet in which a heat generating sheet made of iron powder, pulp fiber, activated carbon, flocculant, water, and sodium chloride is accommodated in a container. The container is formed in a bag shape having a space inside by joining the peripheral portions of the breathable sheet and the non-moisture permeable sheet. As the breathable sheet, BRN1260 (trade name) manufactured by Nitto Lifetech Co., Ltd. was used. As the moisture-impermeable sheet, a laminate of a spunbond nonwoven fabric and a low density polyethylene film was used. Elves (trade name, basis weight 30 g / m ² ) manufactured by Unitika Ltd. was used as the spunbond nonwoven fabric. The low density polyethylene film had a basis weight of 34 g / m ² . This dry heat sheet had the same exothermic temperature as that of Example 1 when its non-moisture permeable sheet surface was measured with a JIS temperature measuring machine (JIS S-4100). The dry heat sheet was housed in the same training pant housing part as in Example 1 so that the non-breathable sheet surface was on the skin side, and the same measurement as in Example 1 was performed. The result is shown in FIG.

  As is apparent from the results shown in FIGS. 7 to 9, in Comparative Example 1, the skin temperature decreased to 29 ° C., and the paneler's body was cooled and became unable to withstand the cold. On the other hand, in Example 1, the skin temperature was kept at 38 ° C., the paneler's body was prevented from being cooled, and a comfortable warmth was imparted. In Comparative Example 2, although the skin temperature was higher than in Comparative Example 1, the temperature did not rise sufficiently, and the warmth was hardly felt.

It is a perspective view which shows one Embodiment of the steam heating tool accommodated in the body mounting tool of this invention. It is a schematic diagram which shows the structure of the longitudinal cross-section of the steam heating tool shown in FIG. It is a top view which shows one Embodiment of the body wearing tool of this invention. It is a top view which shows the state of the leg part of the body wearing tool shown in FIG. It is the VV sectional view taken on the line in FIG. It is a top view which shows another embodiment of the body wearing tool of this invention. 3 is a graph showing skin temperature in Example 1. 5 is a graph showing skin temperature in Comparative Example 1. It is a graph which shows the skin temperature in the comparative example 2.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Heating tool 2 Heating sheet 3 Container 10 Training pants 11 Waist circumference part 12 Leg part 13 Fastener 14 Front body 15 Rear view 16 Housing part 17 Inner layer part 18 Outer layer part 19 Suture line 20 Opening part

Claims (6)

A body-worn device having a housing portion of a steam heating device capable of generating steam heated to a predetermined temperature and worn on a part of the body,
The housing part is located on the side close to the wearer's skin and can transmit water vapor, and the outer layer part is located on the side far from the wearer's skin and has lower water vapor permeability than the inner layer part. The steam heating device is held and accommodated between the outer layer portion and the inner layer portion,
The body wearing tool is a body wearing tool having a shape in which a space capable of circulating water vapor is formed between the inner layer portion and the wearer's body in a state where the body wearing tool is worn.   The body wearing device according to claim 1, which is a trouser type worn through both legs.   The body wearing device according to claim 1, wherein the housing portion is formed at a position corresponding to at least one of the thigh, knee and lower leg of the wearer.   The body wearing according to claim 3, wherein the pair of accommodating portions are formed symmetrically with respect to the leg axis at a position corresponding to at least one of the thigh, knee and lower leg of the wearer. Tools.   A pair of symmetrically aforesaid pairs of front and rear thighs in the wearer's thigh, front knee and rear knee in the knee, or front and rear leg in the lower leg The body wearing tool according to claim 4, wherein a housing portion is formed. A steam heating tool capable of generating water vapor heated to a predetermined temperature, and a body heating tool having a housing portion for the steam heat tool and worn on a part of the body. Because
The housing part is located on the side close to the wearer's skin and can transmit water vapor, and the outer layer part is located on the side far from the wearer's skin and has lower water vapor permeability than the inner layer part. The steam heating device is held and accommodated between the outer layer portion and the inner layer portion,
The body wearing tool is a body warming wearing tool having a shape in which a space capable of circulating water vapor is formed between the inner layer portion and the wearer's body in a state where the body wearing tool is worn. .

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