JP6008595B2 - Steam heating equipment - Google Patents

Description

  The present invention relates to a steam heating device.

2. Description of the Related Art Various types of heating tools that are pasted on the skin have been developed.
For example, Patent Document 1 discloses a heating tool that is attached to a shoulder.
In this heating tool, a heating material is housed in a housing body including a first ventilation layer located on the side far from the skin and a second ventilation layer located on the side near the skin.
In Patent Document 2, a first surface located on the side close to the wearer's skin and having air permeability, a second surface located on the side far from the wearer's skin, a first surface, and a second surface are disclosed. And a heating tool provided with a first adhesive part and a second adhesive part for fixing the heating tool to clothing on the outer surface of the second surface. Have been described.
Patent Document 3 describes a skin-applied heat generating sheet characterized in that a hydrophobic adhesive is formed in a stripe shape or a dot shape on one side of a sheet-like bag containing a heat generating agent through a hydrophilic nonwoven fabric. ing.

JP 2006-204733 A JP 2010-284340 A JP 2000-139990 A

  However, in these heat generating tools, when water vapor | steam generate | occur | produces from a heat generating tool, there was room for the further improvement from a viewpoint of fully applying water vapor | steam to a wearer's body.

The inventor of the present application has invented the following structure in order to reliably apply water vapor to the body.
In the steam heating device, a non-breathable layer is disposed on the side opposite to the skin of the heating element to prevent the steam from being released to the outside from the surface on the side opposite to the skin of the steam heating device. And the vapor | steam from a heat generating body is discharge | released from the skin side surface of a vapor | steam heating tool.
However, when a non-ventilated layer is placed on the side opposite to the skin of the heating element in a steam heating tool of the type that is attached to the skin by providing an adhesive layer for fixing the steam heating tool to the skin. There is a concern that the supply of air to the heating element is reduced, making it difficult to obtain desired heat generation characteristics.

The present invention is based on the above findings.
That is, according to the present invention,
A first sheet having air permeability;
A second sheet;
A heating element that is disposed between the first sheet and the second sheet and generates steam when it generates heat;
A steam heating device in which the first sheet is located on the wearer side when worn,
On the outer surface of the first sheet, a first adhesive layer and a second adhesive layer are provided,
The first adhesive layer comprises a pair of adhesive layers extending in parallel and spaced apart in parallel,
The second adhesive layer is disposed in a region between the pair of first adhesive layers and extends in the same direction following the first adhesive layer.
In the plan view from the first sheet side, the heating element is located in a region between the first adhesive layer and the second adhesive layer,
In a plan view from the first sheet side, there is no adhesive layer in a region between the first adhesive layer and the second adhesive layer, and the outer surface of the first sheet has air on the heating element. Configured to be supplied,
There is provided a steam heating device having a non-venting layer on the opposite side of the first sheet with the heating element interposed therebetween.

Here, the non-breathing layer should just be located in the other side of the 1st sheet on both sides of a heating element. In the present invention, the second sheet may be a non-breathable layer, or a non-breathable layer may be disposed between the heating element and the second sheet.
Here, the pressure-sensitive adhesive layer is a layer that adheres to the skin when worn and is a concept that includes not only a pressure-sensitive adhesive but also a layer composed of an adhesive.

In this invention, the non-breathing layer is provided on the opposite side to the first sheet of the heating element. The first sheet is configured so that air is supplied to the heating element. Therefore, the steam generated in the heating element is hardly released to the outside from the second sheet side, and the steam generated in the heating element can be preferentially released from the first sheet side. Thereby, the steam heating tool of the present invention can reliably supply steam to the wearer's skin.
In addition, a second adhesive layer is disposed in the same direction following the first adhesive layer in a region between the first adhesive layers provided in parallel and extending in one direction and spaced apart. There is no adhesive layer in the region between the first adhesive layer and the second adhesive layer. Therefore, when the steam heating device is worn, there is a path extending in one direction that can supply air between the skin of the wearer and the first sheet, and the air is good for the heating element via the first sheet. Can supply. Thereby, desired heat generation characteristics can be obtained.

  ADVANTAGE OF THE INVENTION According to this invention, the vapor | steam heating tool which can supply vapor | steam reliably to a wearer's skin and can acquire a desired heat_generation | fever characteristic is provided.

It is a top view which shows the steam heating tool concerning one Embodiment of this invention. It is sectional drawing of the II-II direction of FIG. It is sectional drawing which shows a modification. It is a perspective view which shows a heat-emitting part. It is a top view which shows the state which provided the release paper in the steam heating tool. It is sectional drawing which shows the state which accommodated the steam heating tool in the exterior body. It is sectional drawing which shows the state which peels release paper from a steam heating tool. It is a figure which shows the state which the wearer wore the steam heating tool. It is a top view which shows a modification. It is a figure which shows the change of the activity of the parasympathetic nerve when a wearer wears the steam heating tool of Example 1. FIG. It is a top view which shows the steam heating tool of the comparative example 1. It is a top view which shows the steam heating tool of the comparative example 2. It is a figure which shows the temperature rise of the steam heating tool of Example 1, and the steam heating tool of the comparative example 1. FIG.

Hereinafter, embodiments of the present invention will be described with reference to the drawings. In all the drawings, the same components are denoted by the same reference numerals, and detailed description thereof is appropriately omitted so as not to overlap.
First, an outline of the steam heating tool 1 will be described with reference to FIGS.
FIG. 1 is a plan view from the first sheet 11 side of the steam heater 1, and FIGS. 2 and 3 are cross-sectional views in the II-II direction of FIG. 1. However, in FIGS. 2 and 3, the release paper 2 is attached to the steam heating tool 1.
The steam heating tool 1 of the present embodiment is disposed between the first sheet 11 having air permeability, the second sheet 12, and the first sheet 11 and the second sheet 12, and generates steam when it generates heat. And a heating element 13.
The steam heating tool 1 is configured such that the first sheet 11 is positioned on the wearer side when the steam heating tool 1 is worn.
A first adhesive layer 14 and a second adhesive layer 15 are provided on the outer surface of the first sheet 11. These adhesive layers are for fixing the steam heating tool 1 to the skin of the wearer.
The first adhesive layer 14 includes a pair of adhesive layers extending in parallel and spaced apart in parallel, and the second adhesive layer 15 is disposed in a region between the pair of adhesive layers 14 and the first adhesive layer 14 is extended in the same direction.
The heating element 13 is located in a region between the first adhesive layer 14 and the second adhesive layer 15 in a plan view of the steam heating device 1 from the first sheet 11 side.
In a plan view of the steam heating device 1 from the first sheet 11 side, there is no adhesive layer in the region between the first adhesive layer 14 and the second adhesive layer 15, and the outer surface of the first sheet 11 generates heat. Air is supplied to the body 13.
Further, the steam heating tool 1 has a non-breathable layer (in this embodiment, a non-breathable sheet 172) located on the opposite side of the first sheet 11 with the heating element 13 interposed therebetween.

In such a steam heating device 1, a non-breathable layer is provided on the side opposite to the first sheet 11 of the heating element 13, and air is supplied to the heating element via the breathable first sheet 11. Thus, the steam generated in the heating element 13 is not easily released from the second sheet 12 side, and the steam generated in the heating element 13 can be preferentially released from the first sheet 11 side. it can. Thereby, vapor | steam can be reliably supplied to a wearer's skin.
Further, in the plan view of the steam heating device 1 from the first sheet 11 side, there is no adhesive layer in the region between the first adhesive layer 14 and the second adhesive layer 15, and the outer surface of the first sheet 11 is The heating element 13 is configured to be supplied with air. Therefore, when the steam heating tool 1 is worn, a path extending in one direction in which air can be supplied between the wearer's skin and the first sheet 11 is formed, and the heating element 13 is provided via the first sheet 11. Air can be supplied satisfactorily. Thereby, desired heat generation characteristics can be obtained. Moreover, when the steam heating tool 1 is affixed to the back side of the wearer's neck, hair or the like can be prevented from adhering to the adhesive layer of the steam heating tool.

Next, with reference to FIGS. 1-8, the steam heating tool of this embodiment is demonstrated in detail.
The first sheet 11 and the second sheet 12 constitute an outline of the steam heating tool 1. In the present embodiment, the first sheet 11 and the second sheet 12 are both the same size and have the same planar shape. In this embodiment, the 1st sheet | seat 11 and the 2nd sheet | seat 12, ie, the steam heating tool 1, are the horizontal shape which has the longitudinal direction X and the width direction Y orthogonal to this in planar view from the 1st sheet | seat 11 side. I am doing. That is, the length in the X-axis direction is longer than the length in the Y-axis direction. For example, the first sheet 11 and the second sheet 12 have long sides in the longitudinal direction X direction and short sides in the short direction Y direction. A horizontally long shape having a rectangular shape, specifically, a rectangular shape, an oval shape, an elliptical shape, a bean shape or the like in a plan view is preferable.
In this way, the steam heating tool 1 is formed in a horizontally long flat shape in a plan view from the first sheet 11 side, so that the steam heating tool 1 extends in the left-right direction of the wearer on the back side portion of the neck. Can be pasted.

The steam heating tool 1 forms an outer bag (first container) that houses a heating element inside by bonding the outer peripheral edges of the first sheet 11 and the second sheet 12 together.
In addition, as above-mentioned, the 1st sheet | seat 11 and the 2nd sheet | seat 12 may be comprised by a separate sheet | seat, and a bag body may be comprised by bonding each other's outer periphery, Moreover, the 1st sheet | seat 11 may be comprised. And the 2nd sheet | seat 12 is comprised with a series of sheet | seats, you may comprise a bag body by folding this series of sheets and bonding the outer periphery which opposes.

The first sheet 11 is positioned on the skin side of the wearer when the wearer wears the steam heating tool 1. The first sheet 11 is a breathable sheet, and the air permeability is 8000 seconds / 100 ml or less. Especially, from the viewpoint of ensuring the air permeability of the steam generated by the heating element 13, the air permeability of the first sheet 11 is 6,000 seconds / 100 ml or less and 1,000 seconds / 100 ml or less. Is more preferable. Further, the lower limit value of the air permeability of the first sheet 11 is not particularly limited. However, considering the basis weight and the like for preventing the inner bag 17 located inside, in particular, the inner bag 17 from being seen through, is preferably 1 second / 100 ml or more.
As the first sheet 11, a fiber sheet including a non-woven fabric can be used.
The air permeability is a value measured by JIS P8117 (1998), and is defined as the time required for 100 ml of air to pass through an area of 6.42 cm ² under a constant pressure. Therefore, a high air permeability means that it takes time to pass air, that is, the air permeability is low. Conversely, a low air permeability means high air permeability. Thus, the magnitude of the air permeability and the level of air permeability are opposite to each other. The air permeability can be measured with a Oken type air permeability meter.

In the present embodiment, the second sheet 12 is composed of a breathable sheet, like the first sheet 11. However, from the viewpoint of aesthetics, it is preferable that the first sheet 11 is made of a nonwoven fabric.
Here, the steam heating tool 1 may be configured to be capable of extending and contracting at least in the X-axis direction. For example, the first sheet 11 and the second sheet 12 may have the above-described air permeability and may be stretchable sheets that expand and contract in the X-axis direction. Examples of stretchable sheets include synthetic fibers selected from polyesters such as PET (polyethylene terephthalate), polyolefins such as PE (polyethylene) and PP (polypropylene), polyamides, and polyacryls; cellulose, silk, cotton, wool, and the like A natural fiber selected from: or a sheet composed of a composite fiber of these; Alternatively, the stretchable sheet is selected from an air-through method, a spunbond method, a needle punch method, a melt blown method, a card method, a heat fusion method, a hydroentanglement method, and a solvent adhesion method using two or more kinds of fibers. Nonwoven fabric produced by the method can also be used. In addition to non-woven fabrics, knitted fabrics can also be used. In particular, from the viewpoints of texture and elasticity, it is preferable to use a non-woven fabric having elasticity as the elastic sheet. As the non-woven fabric having elasticity, an air-through non-woven fabric or a spunbonded non-woven fabric containing elastic fibers (for example, polyurethane, polyester) as a constituent fiber is preferable. It can also be used. In addition, the 1st sheet | seat 11 and the 2nd sheet | seat 12 are good also as an elastic sheet comprised with the same kind material, and good also as an elastic sheet comprised with a different material.

  The heating element 13 is disposed between the first sheet 11 and the second sheet 12. The heating element 13 generates steam when it generates heat, and is composed of a heating composition containing an oxidizable metal, water, and a carbon component.

  The oxidizable metal is a metal that generates heat of oxidation reaction, and examples thereof include powders and fibers of iron, aluminum, zinc, manganese, magnesium, calcium, a mixed metal obtained by mixing two or more of these, and the like.

As a carbon component, it has water retention ability, oxygen supply ability, and catalytic ability, for example, 1 type, or 2 or more types chosen from activated carbon, acetylene black, and graphite can be used.

  The heating element 13 may be a powder or a molded product of powder, or may be in the form of a sheet. In the present embodiment, the heating element 13 has a rectangular (square, rectangular) sheet shape in plan view.

The heating element 13 may be obtained, for example, by producing a slurry-like material containing the above-described exothermic composition and applying the slurry-like material on the base material layer S (see FIG. 2). good.
In this case, together with the base material layer S, the heating element 13 is accommodated in an inner bag 17 described later.
As the base material layer S, it is preferable to use a sheet that can absorb and retain moisture and has air permeability. The base material layer S may absorb a certain amount of moisture in the exothermic composition. The air permeability of the substrate layer S (the state in which moisture is absorbed) is preferably 8000 seconds / 100 ml or less, and more preferably 500 seconds / 100 ml or less. The lower limit is not particularly limited, but is preferably 0 second / 100 ml or more, and more preferably 1 second / 100 ml or more.
Examples of the base material layer S include fiber sheets such as paper, non-woven fabric, woven fabric, and knitted fabric made of fibers. Examples of the fibers include those mainly composed of natural fibers such as plant fibers and animal fibers, and those mainly composed of chemical fibers.
In addition, the base material layer S may be located on the skin side from the heating element 13 when the wearer wears the steam heating tool 1 on the skin, or is located on the side farther from the skin than the heating element 13. Also good.

  The heating element 13 may be manufactured by a paper making method using a paper machine. In this case, the exothermic composition preferably contains a fiber material in addition to the components described above. In this case, the base material layer S may be omitted as shown in FIG.

The heat generating body 13 as described above is housed in an inner bag (second housing body) 17 as shown in FIGS. The heating element 13 and the inner bag 17 constitute a heating part 18.
The inner bag 17 is configured by joining the sheet 171 and the peripheral edge of the sheet 172. Regions other than the peripheral portions of the sheets 171 and 172 are non-joining regions, and the heating element 13 is disposed in the non-joining regions.

The sheet 171 is disposed closer to the skin than the heating element 13 when the wearer wears the steam heating tool 1 on the skin.
The sheet 171 is a breathable sheet, and the air permeability thereof is preferably 8,000 seconds / 100 ml or less, and more preferably 5,000 seconds / 100 ml or less.
By setting the air permeability of the sheet 171 to 8,000 seconds / 100 ml or less, the air permeability of the sheet 171 can be secured and the vapor from the heating element 13 can be easily released to the outside of the sheet 171.
On the other hand, the air permeability of the sheet 171 is preferably 10 seconds / 100 ml or more, and more preferably 100 seconds / 100 ml or more. By setting the air permeability of the sheet 171 to 10 seconds / 100 ml or more, the heat generation temperature can be controlled and abnormal heat generation can be prevented.
As the sheet 171 having such air permeability, for example, a porous sheet made of a synthetic resin that has moisture permeability but does not have water permeability is preferably used. Specifically, a stretched film containing calcium carbonate or the like in polyethylene can be used.

When the wearer wears the steam heating tool 1 on the skin, the sheet 172 is positioned on the side farther from the skin than the heating element 13.
In the present embodiment, the sheet 172 is a non-breathable sheet that has substantially no breathability. Here, the non-breathable sheet having substantially no breathability is not only a non-breathable sheet that does not allow air to pass completely, but even if air is allowed to pass, It is a concept that includes a non-breathable sheet that does not have sufficient breathability to affect (that is, heat generation characteristics similar to those when a non-breathable sheet that does not allow air to pass through completely is used). The air permeability of the non-breathable sheet is 80,000 seconds / 100 ml or more, and preferably 100,000 seconds / 100 ml or more. Further, it is preferably 150,000 seconds / 100 ml or more.
As the sheet 172, a synthetic resin film such as a single-layer or multilayer polyethylene film can be used. Moreover, what laminated | stacked various fiber sheets including the 1 type, or 2 or more types of nonwoven fabric selected from the needle punch nonwoven fabric, an air through nonwoven fabric, and a spun bond nonwoven fabric on the outer surface of the film made from a single layer or a multilayer synthetic resin May be used.

  Here, since the steam heating tool 1 has the non-breathable sheet 172, the breathability of the entire sheet layer composed of the second sheet 12 and the sheet 172 is the first sheet 11, the sheet 171 and the base material layer S. The air permeability of the entire sheet layer constituted by (excluding the base material layer S when there is no base material layer S) is lower. In other words, the second sheet 12 is the outermost layer, and the air permeability of the entire sheet layer from the second sheet 12 to the heating element 13 is from the first sheet 11 to the heating element 13. It is higher than the air permeability of the entire sheet layer.

In the present embodiment, the heat generating portion 18 as described above has a rectangular shape (more preferably a square shape) in plan view.
The heat generating portion 18 as described above is housed in the outer bag configured by the first sheet 11 and the second sheet 12 described above. In the present embodiment, a plurality of heat generating portions 18 are accommodated in the outer bag. The plurality of heat generating portions 18 are spaced apart along the X-axis direction of the outer bag. One side of the heat generating part 18 may be parallel to the long side of the outer bag. A part of the sheet 172 of the heat generating part 18 may be fixed to the second sheet 12 with an adhesive such as a hot melt adhesive.
In the present embodiment, the first sheet 11, the sheet 171, and the base material layer S form a ventilation layer for supplying air to the heating element 13. In addition, when the heat generating body 13 is not formed on the base material layer S, the said ventilation layer will be comprised with the 1st sheet | seat 11 and the sheet | seat 171. FIG.

Next, the first adhesive layer 14 and the second adhesive layer 15 will be described with reference to FIGS.
The first adhesive layer 14 and the second adhesive layer 15 are provided on the outer surface of the first sheet 11. The first adhesive layer 14 and the second adhesive layer 15 are for attaching the steam heating tool 1 to the wearer's skin.
The first adhesive layer 14 is composed of a pair, and the pair of first adhesive layers 14 extend in one direction in parallel with the outer surface of the first sheet 11 and are disposed apart from each other, preferably in the X-axis direction of the first sheet 11. It is arrange | positioned at the edge part of each. More preferably, the pair of first adhesive layers 14 are arranged with a center line C passing through the center of the outer surface of the first sheet 11 in the X-axis direction, and are preferably arranged at symmetrical positions.
In the present embodiment, each first adhesive layer 14 extends along the Y-axis direction of the first sheet 11 without intersecting with the second adhesive layer 15, and preferably, both end portions in the extending direction are first. The outer edge of one sheet 11 is reached. Thereby, the steam heating tool 1 can be stably attached to the wearer, and when the steam heating tool is worn, air can be supplied in one direction between the wearer's skin and the first sheet. An extending path is formed, and air can be favorably supplied to the heating element via the first sheet.
More preferably, the pair of first adhesive layers 14 has an arcuate outer peripheral edge in an X-axis direction outer peripheral edge (arc portion) of the first sheet 11 in a plan view from the outer surface side of the first sheet 11. It is formed to overlap and has a half moon shape.
In the plan view from the outer surface side of the first sheet 11, it is preferable in terms of heat generation characteristics that the pair of first adhesive layers 14 do not overlap the heating element 13.

On the other hand, the second adhesive layer 15 is disposed in a region between the pair of first adhesive layers 14 in a plan view from the first sheet 11 side, and extends in the same direction following the first adhesive layer 14. Yes. The second adhesive layer 15 extends in the same direction as the pair of first adhesive layers 14, that is, along the Y-axis direction of the first sheet 11. Thereby, the steam heating tool 1 can be stably attached to the wearer, and when the steam heating tool is worn, air can be supplied in one direction between the wearer's skin and the first sheet. An extending path is formed, and air can be favorably supplied to the heating element via the first sheet.
In the present embodiment, the second adhesive layer 15 has a rectangular shape in plan view from the first sheet side. Then, both end portions in the extending direction of the second adhesive layer 15 may reach the outer peripheral edge of the first sheet 11. That is, the second adhesive layer 15 is preferably formed so as to cover the entire length of the first sheet 11 in the Y-axis direction.

In addition, the first adhesive layer 14 is disposed at the end of the steam heating device 1 in the X-axis direction, and the second adhesive layer 15 is provided in the vicinity of the center line C, whereby the heating element is located. Since the area between the first adhesive layer 14 and the second adhesive layer 15 is widely secured in a plan view from the one sheet 11 side, when the steam heating tool 1 is worn, A path extending in one direction in which air can be supplied between the sheet and the air can be satisfactorily supplied to the heating element via the first sheet, and the steam heating device 1 is securely fixed to the wearer. Is preferable. For example, even if the steam temperature heating tool 1 is affixed to a part that moves characteristicly, such as the wearer's neck, the steam temperature heating tool 1 can be prevented from peeling off.
In the present embodiment, it is preferable in terms of heat generation characteristics that the second adhesive layer 15 does not overlap with the pair of heating elements 13 in a plan view from the outer surface side of the first sheet 11. However, as shown in FIG. 9, the second adhesive layer 15 and the heat generating portion 18 may overlap.

In the present embodiment, a plurality of second adhesive layers 15 are provided, and the plurality of second adhesive layers 15 are separated from each other. In the present embodiment, two second adhesive layers 15 are provided. The plurality of second adhesive layers 15 are preferably arranged at symmetrical positions with the center line C interposed therebetween. The plurality of second adhesive layers 15 are preferably extended along the Y-axis direction of the first sheet 11. In the present embodiment, the pair of second adhesive layers 15 extend in parallel.
In the present embodiment, an exposed region 111 (adhesive layer-free region) in which the adhesive layer is not present and the outer surface of the first sheet 11 is exposed is formed between the pair of second adhesive layers 15. Extends in the Y-axis direction and has a rectangular shape in plan view. It is preferable that both end portions in the Y-axis direction of the exposed region 111 that is an adhesive layer absent region reach the outer peripheral edge of the first sheet 11. In the present embodiment, the exposed region 111 is located at the center of the first sheet 11 in the X-axis direction, and the above-described center line C passes through the exposed region 111. Although described later in detail, the center line C is a folding line of the steam heating tool 1. It is preferable that no adhesive layer exists on the fold line.
In the present embodiment, in the plan view from the first sheet 11 side, it is easy to bend and fit to the body that the exposed region 111 does not overlap the heating element 13 and further the heating part 18. Is preferable. However, as shown in FIG. 9, the exposed region 111 and the heat generating portion 18 may overlap.

In the area between the first adhesive layer 14 on the outer surface of the first sheet 11 and the adjacent second adhesive layer 15, there is no adhesive layer, and the exposed area 112 where the outer surface of the first sheet 11 is exposed (the absence of the adhesive layer) Region) is formed. In the present embodiment, a pair of exposed regions 112 are formed on the outer surface of the first sheet 11.
In the present embodiment, the size and shape of the pair of exposed regions 112 are the same, but may be different. Here, the exposed region 112 is a region surrounded by one side of the first adhesive layer 14 on the side of the heating element 13, one side of the second adhesive layer 15 on the side of the heating element 13, and the outer peripheral edge of the first sheet 11. is there. Thus, in the area between the first adhesive layer 14 on the outer surface of the first sheet 11 and the adjacent second adhesive layer 15, there is no adhesive layer, so that the passage of air is less likely to be inhibited by the adhesive layer. The air can be satisfactorily passed through the exposed region 112 between the skin of the wearer and the heating element 13.
The exposed region 112 includes a pair of exposed regions, that is, an exposed region (first exposed region) 112A and an exposed region (second exposed region) 112B. The exposed region 112 </ b> A is a region located on the outer side in the Y axis direction than the heating element 13.
The exposed region 112 </ b> A sandwiches the heating element 13 from a direction different from the direction in which the first adhesive layer 14 and the second adhesive layer 15 sandwich the heating element 13 (a direction orthogonal in the present embodiment), and the outer peripheral edge of the heating element 13. In FIG. 1, it reaches the outer peripheral edge of the first sheet 11 from the upper side or the lower side that partitions the heating element 13. The exposed area 112 </ b> A is a place that plays an important role in supplying air to the heating element 13.
There is no adhesive layer between the outer peripheral edge of the heating element 13 and the outer peripheral edge of the first sheet 11, and an extension line extending the X-axis direction side of the heating element 13 in the X-axis direction, and the first adhesive layer 14 The entire region surrounded by one side of the heating element 13 side, one side of the second adhesive layer 15 side of the heating element 13 and the outer peripheral edge of the first sheet 11 is defined as an exposed area 112A. It can be a large area.
By forming the exposed region 112 </ b> A, air is supplied to the heating element 13 satisfactorily. Further, by forming the exposed region 112A, it is possible to prevent hair or the like from adhering to the adhesive layer of the steam heating device when the steam heating device 1 is attached to the back side of the wearer's neck. Thereby, it can be set as the user-friendly steam heating tool 1.

The exposed region 112B is adjacent to the exposed region 112A and is provided continuously to the exposed region 112A. The exposed region 112B covers the heating element 13 and is another place that plays an important role in supplying air to the heating element 13. In the present embodiment, the entire heating element 13 is covered with the exposed region 112 </ b> B in a plan view viewed from the outer surface side of the first sheet 11. In other words, the first adhesive layer 14 and the second adhesive layer 15 are disposed so as not to overlap the heating element 13, and the heating element 13 is not covered with the adhesive layer. By doing so, it is possible to easily supply air to the heating element 13. Moreover, the vapor | steam generate | occur | produced from the heat generating body 13 can be reliably supplied to a wearer.
As described above, the exposed region 112A has a large area. Thereby, air can be reliably supplied to the exposed region 112B adjacent to the exposed region 112A, and air can be sufficiently supplied to the heating element 13 side via the exposed region 112B.
In the present embodiment, the width W1 of the exposed region 112 in the X-axis direction is longer than the width W2 of the heat generating element 13 in the X-axis direction, and further longer than the width of the heat generating portion 18 in the X-axis direction. The length of the region 112 in the Y-axis direction is longer than the length of the heating element 13 in the Y-axis direction, and further, the length of the heating unit 18 in the Y-axis direction.
Although the width W1 of the exposed region 112 in the X-axis direction is longer than the width W2 of the heat generating element 13 in the X-axis direction, it may be shorter than the width of the heat generating portion 18 in the X-axis direction.

Further, the width W1 of the exposed region 112 in the X-axis direction is larger than the width W3 of the exposed region 111 in the X-axis direction. For example, the width W1 is 3 to 15 times the width W3.
In addition, the 1st adhesion layer 14 and the 2nd adhesion layer 15 apply | coat the adhesive containing at least 1 sort (s) selected from acrylic resin, vinyl acetate resin, and olefin resin to the outer surface of the 1st sheet | seat 11. Is formed.

Next, the release paper 2 will be described with reference to FIGS. FIG. 5 is a plan view of a state in which the release paper 2 is attached to the steam heating tool 1 of FIG.
The steam heating tool 1 is provided with a release paper 2 that covers the entire adhesive layer.
The release paper 2 is preferably composed of at least a pair of release parts 21 and 22, and in the present embodiment, it is constituted of a pair of release parts 21 and 22.
In the present embodiment, the peeling portion 21 includes one first adhesive layer 14 out of the pair of first adhesive layers 14, one exposed region 112, one second adhesive layer 15 out of the pair of second adhesive layers 15, The exposed region 111 and the other second adhesive layer 15 of the pair of second adhesive layers 15 and a part of the other exposed region 112 are covered. The peeling portion 21 is adhered to both the first adhesive layer 14 and the pair of second adhesive layers 15 of the pair of first adhesive layers 14.
As shown in FIG. 5, the outer peripheral edge of the peeling portion 21 is an outer peripheral edge portion 21 </ b> A that overlaps with the outer peripheral edge of the first sheet 11 and an outer peripheral edge portion 21 </ b> B that extends on the other exposed region 112 in the Y-axis direction. It is configured.

In the present embodiment, the peeling portion 22 covers the other first adhesive layer 14 of the pair of first adhesive layers 14 and the other part of the other exposed region 112. The peeling portion 22 is bonded to the other first adhesive layer 14 of the pair of first adhesive layers 14.
As shown in FIG. 5, the outer peripheral edge of the peeling portion 22 includes an outer peripheral edge portion 22 </ b> A that overlaps with the outer peripheral edge of the first sheet 11 and an outer peripheral edge portion 22 </ b> B that extends on the other exposed region 112 in the Y-axis direction. It is configured.
As described above, in the plan view from the first sheet 11 side, the peeling portion 21 and the peeling portion 22 have different shapes. Further, in plan view from the first sheet 11 side, the peeling portion 21 and the peeling portion 22 are separated from each other, and the outer peripheral edge portion 22B and the outer peripheral edge portion 21B are opposed to each other. The outer peripheral edge 22B and the outer peripheral edge 21B are located on the other exposed region 112, and the outer surface of the first sheet 11 is exposed between the outer peripheral edge 22B and the outer peripheral edge 21B. . In the present embodiment, the other exposed region 112 is exposed. The outer peripheral edge portion 22B and the outer peripheral edge portion 21B are at positions shifted from the center line C in the X-axis direction.

As described above, the outer peripheral edge portion 21 </ b> B of the peeling portion 21 and the outer peripheral edge portion 22 </ b> B of the peeling portion 22 are located on the exposed region 112. Therefore, the area | region of the outer peripheral part 21B vicinity of the peeling part 21 and the area | region of the outer peripheral part 22B vicinity of the peeling part 22 are not adhere | attached on the adhesion layer. Accordingly, the wearer can easily pinch the region in the vicinity of the outer peripheral edge portion 21B of the peeling portion 21 and the region in the vicinity of the outer peripheral edge portion 22B of the peeling portion 22. Therefore, the release paper 2 can be easily peeled from the steam heating tool 1. In particular, in the present embodiment, the width W1 of the exposed region 112 in the X-axis direction is wider than the width W3 of the exposed region 111 in the X-axis direction. Therefore, when the outer peripheral edge portions 21B and 22B are present on the exposed region 112, compared with the case where the outer peripheral edge portions 21B and 22B of the peeling portions 21 and 22 are present on the exposed region 111, the outer peripheral edge portions 21B and 22B. It is easy to ensure a wide distance between the adhesive layer and the adhesive layer. Specifically, the distance between the outer peripheral edge portion 21B of the peeling portion 21 and the second adhesive layer 15 and the distance between the outer peripheral edge portion 22B of the peeling portion 22 and the first adhesive layer 14 can be secured widely, and peeling The area | region which is not adhere | attached on the adhesion layer of the outer periphery part 21B vicinity of the part 21 and the area | region which is not adhere | attached on the adhesion layer of the peeling part 22 vicinity of the outer periphery part 22B can be ensured widely.
Furthermore, by separating the outer peripheral edge portion 21B of the peeling portion 21 and the outer peripheral edge portion 22B of the peeling portion 22, the entire area of the release paper 2 can be reduced. Therefore, the amount of generated waste can be reduced and the cost can be reduced.

Here, the magnitude | size of the steam heating tool 1 is demonstrated.
The steam heating tool 1 is worn on the wearer's neck, particularly the back side of the neck, and the length in the X-axis direction is, for example, 10 to 30 cm, and the length in the Y-axis direction is 5 to 10 cm. .
Further, the maximum width in the X-axis direction of the first adhesive layer 14 is 10 to 80 mm, the width in the X-axis direction of the second adhesive layer 15 is 2 to 10 mm, and the maximum width W3 of the exposed region 111 in the X-axis direction. Is, for example, 4 to 10 mm, and the width W1 of the exposed region 112 in the X-axis direction is, for example, 15 to 130 mm.

As shown in FIG. 6, the steam heating tool 1 as described above is accommodated in an exterior body (packaging body) 3 with the release paper 2 attached.
The steam heating tool 1 to which the release paper 2 is attached is folded in two. That is, the exposed region 111 is bent along the center line C along the extending direction. At this time, the steam heating tool 1 is folded together with the release paper 2 so that the adhesive layers 14 and 15 side are inside.
And it accommodates in the exterior body 3, and the exterior body 3 is sealed. The outer package 3 is composed of a film having oxygen barrier properties. A heat-generating article 100 can be configured by such an exterior body 3 and the steam heating tool 1 to which the release paper 2 is attached.

In the present embodiment, since the exposed region 111 where the adhesive layer does not exist is folded, the steam heating tool 1 is easily folded.
In addition, when the steam heating tool 1 to which the release paper 2 is attached is folded together with the release paper 2 so that the adhesive layer is on the inside, the release paper is extremely thin and less stretchable than the steam heating tool body. When the steam heating tool is used, it may be difficult to spread the folded steam heating tool. On the other hand, in this embodiment, since the exposed area | region 111 in which the adhesion layer is not provided is bent, the folded steam heating tool 1 can be spread easily.
Further, since the exposed region 111 and the heating element 13 do not overlap and there is no need to bend the heating element 13, the steam heating tool 1 can be bent or expanded smoothly. In particular, in the present embodiment, since the exposed region 111 does not overlap not only the heating element 13 but also the heating part 18, the steam heating tool 1 can be bent or spread smoothly.
Further, in the present embodiment, the steam heating tool 1 is fixed to the wearer's skin by the adhesive layers 14 and 15. Therefore, it is possible to protect the adhesive layers 14 and 15 and the first sheet 11 by folding the steam heating tool 1 together with the release paper 2 and accommodating it in the exterior body 3 so that the adhesive layers 14 and 15 side is inside. Is highly preferred.
Further, by folding the steam heating tool 1 and storing it in the outer package 3, the steam heating tool 1 can be stored in the outer package 3 in a compact manner, and the entire heat generating article 100 can be reduced in size. .

When the wearer wears the steam heating tool 1, the outer package 3 is opened and the steam heating tool 1 is taken out from the outer package 3. Thereafter, the release paper 2 is peeled from the steam heating tool 1. For example, as shown in FIG. 7, first, the peeling part 22 is peeled from the steam heating tool 1. Then, one 1st adhesion layer 14 is made to contact | abut to a wearer's skin among the pair of 1st adhesion layers 14 exposed by peeling the peeling part 22. FIG. Specifically, as shown in FIG. 8, the steam heating tool 1 is disposed on the back side of the wearer's neck, and the steam heating tool 1 is steamed so that the longitudinal direction of the steam heating tool 1 extends in the left-right direction of the wearer. Paste the heating tool 1 to the back of the neck. Then, the peeling part 21 is peeled from the steam heating tool 1 in a state where the steam heating tool 1 is partially attached to the skin. And the other 1st adhesion layer 14 and a pair of 2nd adhesion layer 15 are affixed on a wearer's skin among a pair of 1st adhesion layers 14 exposed by peeling the peeling part 21. FIG. Thereby, the steam heating tool 1 will be fixed to a wearer.
Thus, the steam heating tool 1 is fixed to the skin by peeling one of the plurality of peeling portions, exposing one of the plurality of adhesive layers, and fixing the same to the skin. At this time, the adhesive layers can be prevented from sticking to each other. After that, in the state where one adhesive layer is fixed to the skin, the remaining peeling portion is peeled off, and among the plurality of adhesive layers, the adhesive layer other than the one previously fixed to the skin is attached to the skin. 1 can be stably attached to a desired position.

The air enters from between the outer peripheral edge of the first sheet 11 and the wearer's skin, passes between the first sheet 11 and the wearer's skin, and enters the inside of the first sheet 11. Then, the sheet 171 is supplied to the heating element 13 via the heating element 13 (when the base material layer S is provided on the first sheet 11 side). Thereby, desired heat generation characteristics can be obtained.
In addition, since the 2nd sheet | seat 12 of the steam temperature heating tool 1 is a breathable sheet in this embodiment, air is supplied into the steam temperature heating tool 1 through the 2nd sheet | seat 12. As shown in FIG. However, since the sheet 172 of the inner bag 17 is a non-ventilated layer, most of the air that has passed through the second sheet 12 does not reach the heating element 13, and does not reach the heating element 13 from the second sheet 12 side. It is very difficult to supply.

When the oxidizable metal in the heating element 13 comes into contact with air, the oxidizable metal is oxidized and the heating element 13 generates heat. When the heating element 13 generates heat, the moisture in the heating element 13 evaporates and steam is generated. The steam is released to the outside of the steam heating tool 1 through the base material layer S, the sheet 171, and the first sheet 11 (particularly, the exposed region 112B of the first sheet 11).
In addition, when the base material layer S is not provided in a heat generating body, a vapor | steam is discharge | released outside via the sheet | seat 171 and the 1st sheet | seat 11. FIG.
On the other hand, since the sheet 172 of the inner bag 17 is a non-breathable layer, the vapor generated in the heating element 13 is blocked by the sheet 172 and hardly released from the second sheet 12 side to the outside. Thereby, vapor | steam can be discharge | released preferentially from the sheet | seat 171 and a vapor | steam can be reliably supplied to a wearer's skin.

It should be noted that the present invention is not limited to the above-described embodiments, and modifications, improvements, and the like within the scope that can achieve the object of the present invention are included in the present invention.
For example, in the above-described embodiment, the sheet 172 is a non-breathable layer. However, for example, one of the second sheet 12 and the sheet 172 may be a non-breathable layer, or both may be a non-breathable layer. .
Further, a non-breathable sheet may be disposed inside the inner bag 17. In this case, a non-breathable sheet is disposed closer to the sheet 172 than the heating element 13. This non-breathable sheet preferably covers the entire heating element 13 in a plan view from the second sheet 12 side. In this case, the second sheet 12 and the sheet 172 may be a non-breathable layer or a breathable layer.

Furthermore, in the said embodiment, both the both ends of the 1st adhesion layer 14 and the both ends of the 2nd adhesion layer 15 reached the outer periphery of the 1st sheet | seat 11 in planar view from the 1st sheet | seat side. However, it is not limited to this.
For example, the end of the first adhesive layer 14 does not reach the outer periphery of the first sheet 11, and the first sheet 11 is between the end of the first adhesive layer 14 and the outer periphery of the first sheet 11. There may be an exposed area. Similarly, the end of the second adhesive layer 15 does not reach the outer periphery of the first sheet 11, and the first sheet is between the end of the second adhesive layer 15 and the outer periphery of the first sheet 11. There may be a region where 11 is exposed. However, in order to stably fix the steam heating tool to the wearer, at least one of the first adhesive layer 14 and the second adhesive layer 15 in the extending direction, preferably both of the extending portions. The end in the direction preferably reaches the outer peripheral edge of the first sheet 11.

Further, for example, when the end of the first adhesive layer 14 does not reach the outer peripheral edge of the first sheet 11, the extension line on one side of the first adhesive layer 14, the heating element side of the second adhesive layer 15 It is preferable that the area | region enclosed by the one side and the outer periphery of the 1st sheet | seat 11 becomes the exposure area | region 112 which is an adhesion layer absence area | region. By doing in this way, the area of the exposure area | region 112 is securable.
That is, a region surrounded by one side of the first adhesive layer 14 or its extension line, one side of the second adhesive layer 15 or its extension line, and the outer periphery of the first sheet 11 is adhesive. It is preferable that the exposed region 112 is a non-existing region.

Furthermore, in the said embodiment, in the planar view from the 1st sheet | seat 11 side, although the 1st adhesion layer 14 and / or the 2nd adhesion layer 15 did not overlap with the heat-emitting part 18, it is not restricted to this. In plan view from the one sheet 11 side, a part of the first adhesive layer 14 and / or the second adhesive layer 15 may overlap one side of the heat generating portion 18. For example, as shown in FIG. 9, although the heating element 13 and the first adhesive layer 14 and / or the second adhesive layer 15 do not overlap, one side of the inner bag 17 of the heat generating part 18 and the second adhesive layer 15 are It may overlap. Furthermore, the exposed region 111 and a part of the heat generating portion 18, for example, one side of the inner bag 17 may overlap.
Furthermore, the heating element 13 and the second adhesive layer 15 may overlap. That is, it is only necessary that a part of the heating element 13 is located between the first adhesive layer 14 and the second adhesive layer 15 in a plan view from the first sheet 11 side. However, from the viewpoint of obtaining desired heat generation characteristics of the heating element 13, a part of the second adhesive layer 15 from the top of the heating element 13 is in the X-axis direction (first adhesive layer 14) in plan view from the first sheet 11 side. The second adhesive layer 15 is preferably disposed so that the second adhesive layer 15 protrudes in the direction in which the heating element 13 is sandwiched, and in particular, as in the above-described embodiment, the heating element 13 and the second adhesive layer are disposed. It is preferable to arrange the second adhesive layer 15 so that the layer 15 does not overlap.
Similarly, from the viewpoint of obtaining desired heat generation characteristics of the heat generating element 13, the first adhesive layer 14 may be partially protruded from the first adhesive layer 14 in a plan view from the first sheet 11 side. It is preferable to dispose one adhesive layer 14, and it is particularly preferable to dispose the first adhesive layer 14 so that the heating element 13 and the first adhesive layer 14 do not overlap as in the above-described embodiment. Furthermore, 80% or more of the width of the heating element 13 along the direction in which the first adhesive layer 14 and the second adhesive layer 15 sandwich the heating element 13 (X-axis direction in the embodiment) Preferably it is not coated.

Moreover, in the said embodiment, although the heat generating body 13 was accommodated in the inner bag 17, the inner bag 17 does not need to be. In this case, the ventilation layer for supplying the air to the heating element 13 may be configured by one first sheet 11 while including the first sheet 11. By doing in this way, the structure of a steam heating tool can be simplified.
Further, in the embodiment, the gap is formed between the outer peripheral edge portion 21B of the peeling portion 21 and the outer peripheral edge portion 22B of the peeling portion 22, but the outer peripheral edge portion 21B and the outer peripheral edge portion 22B are in contact with each other. There may be no gap between the outer peripheral edges 21B and 22B.
Still further, in the steam heating device 1 of the above-described embodiment, a slit may be formed so that it can be expanded and contracted in the X-axis direction.
Moreover, in the said embodiment, although the steam heating tool 1 was affixed on the back side of the neck, you may affix not only to this but to the skin surface of a wearer's other site | part.

  This invention discloses the following steam heating tools further regarding embodiment mentioned above.

<1> A first sheet having air permeability, a second sheet, and a heating element that is interposed between the first sheet and the second sheet and generates steam when heated, and is worn A steam heating device in which the first sheet is positioned on the wearer side, wherein a first adhesive layer and a second adhesive layer are provided on an outer surface of the first sheet, and the first adhesive layer is arranged in parallel. The second adhesive layer is disposed in a region between the pair of first adhesive layers and extends in the same direction following the first adhesive layer. In the plan view from the first sheet side, the heating element is located in a region between the first adhesive layer and the second adhesive layer, and in the plan view from the first sheet side. In the region between the first adhesive layer and the second adhesive layer, there is no adhesive layer, Serial first sheet outer surface, the is configured such that air is supplied to the heating element, the steam warming device having a non-breathable layer on the opposite side of the first sheet across the heating element.

<2> The steam heating device according to <1>, wherein the non-breathing layer includes one or a plurality of non-breathable sheets, and the breathability of the non-breathable sheet is 80,000 seconds / 100 ml or more.
<3> The end of at least one of the first adhesive layer and the second adhesive layer in the extending direction reaches the outer peripheral edge of the first sheet. <1> or <2> Steam heating equipment.
<4> The steam heating tool according to any one of <1> to <3>, wherein the steam heating tool is a steam heating tool for a neck attached to a wearer's neck.
<5> The steam heating apparatus according to any one of <1> to <4>, wherein the steam heating apparatus has a horizontally long shape having a longitudinal direction X and a width direction Y orthogonal thereto in plan view. .
<6> In a plan view from the first sheet side, one side of the first adhesive layer on the heating element side or an extension line thereof, one side of the second adhesive layer on the heating element side or an extension line thereof, and the outer periphery of the first sheet The steam heating tool according to any one of <1> to <5>, wherein no adhesive layer is present in a region surrounded by.
<7> In a plan view from the first sheet side, one side of the first adhesive layer on the heating element side or an extension line thereof, one side of the second adhesive layer on the heating element side or an extension line thereof, and the outer periphery of the first sheet The region surrounded by is the steam heating device according to <6>, in which the first sheet is exposed.
<8> The steam heating tool according to any one of <1> to <7>, wherein the steam heating tool is configured to be stretchable along a longitudinal direction X in a plan view from the first sheet side.
<9> The steam heating tool according to any one of <1> to <8>, wherein the steam heating tool is configured such that steam generated by the heating element is released to the outside from the first sheet side. .
<10> The steam heating tool has a horizontally long shape having a longitudinal direction X and a width direction Y perpendicular to the longitudinal direction X in a plan view, and the first adhesive layer is formed on an end portion of the first sheet in the X direction. The steam heating tool according to any one of <1> to <9>, which is disposed respectively.
<11> The vapor temperature according to any one of <1> to <10>, wherein the first adhesive layer and the second adhesive layer do not overlap the heating element in a plan view from the first sheet side. Ingredients.
<12> The region of the first sheet surrounded by one side of the first adhesive layer or its extension line, one side of the second adhesive layer or its extension line, and the outer periphery of the first sheet The steam heating device according to <11>, wherein air is supplied to the heating element via a heat exchanger.
<13> A pair of the second adhesive layers are spaced from each other in a region between the pair of first adhesive layers, and no adhesive layer is present between the pair of second adhesive layers. 12> The steam heating tool according to any one of the above.

Next, examples of the present invention will be described.
Example 1
The steam heating tool 1 shown in FIG. 2 of the embodiment was manufactured.
[Manufacture of heating element 13]
100 parts by mass of an oxidizable metal, 8 parts by mass of a carbon component, 62 parts by mass of water, 11 parts by mass of a reaction accelerator, and 0.2 parts by mass of a thickener were prepared and adjusted by the following procedure. Dissolve the thickener in water, then dissolve the reaction accelerator to prepare an aqueous solution, while preparing a powder premixed with an oxidizable metal and a carbon component, put the premixed powder in the aqueous solution, The mixture was stirred at 150 rpm for 10 minutes with a disk turbine type stirring blade to obtain a slurry-like exothermic powder water dispersion.
The types, product names, and manufacturers of oxidizable metals, carbon components, water, reaction accelerators, and thickeners are as follows. The same applies to Comparative Example 1 described later.
Oxidizable metal: Iron powder (Iron powder RKH, average particle size 45 μm, DOWA IP Creation Co., Ltd.)
Carbon component: Activated carbon (Carborafamine, average particle size of 40 μm, manufactured by Nippon Enviro Chemicals)
Water: Tap water reaction accelerator: Sodium chloride (Pharmacopoeia sodium chloride, manufactured by Otsuka Chemical Co., Ltd.)
Thickener: Xanthan gum (Echo Gum BT, DSP Gokyo Food & Chemical Co., Ltd.)

[Manufacture of exothermic part 18]
As the base material layer S, paper A made of wood pulp (20 g / m ² , manufactured by Ino Paper Co., Ltd.) and water-absorbing polymer (sodium polyacrylate, spherical, average particle size 300 μm, 50 g / m ² , Aqualic CA) , (Manufactured by Nippon Shokubai Co., Ltd.) and wood pulp paper B (30 g / m ² , manufactured by Ino Paper Co., Ltd.) were laminated and integrated in this order to use a polymer sheet.
The 25cm ² (5cm × 5cm) base layer the heat generating powder aqueous dispersion to the B side of the S in the range of 25cm ² (5cm × 5cm) was applied in an amount of 600 g / ^{m 2.}
A heating element is placed in the inner bag 17 in which the air permeability of the sheet 171 is 2500 seconds / 100 ml and the air permeability of the sheet 172 (non-breathable sheet) is 100,000 seconds / 100 ml or more. The part was hermetically sealed. At this time, the heating element 13 was arranged so that the base material layer S side was positioned on the sheet 171 side. Thereby, the heat generating part 18 was obtained.

[Manufacture of steam heater 1]
A needle punched nonwoven fabric (air permeability 1 second / 100 ml, basis weight 80 g / m ² ) is used as the first sheet 11, and a spunbond nonwoven fabric (air permeability 1 second / 100 ml, basis weight 38 g / m) as the second sheet 12. ² ) was used. Then, two heat generating portions 18 are arranged apart from each other inside the first sheet 11 and the second sheet 12.
Thereafter, the peripheral portions of the first sheet 11 and the second sheet 12 were hermetically sealed.
Furthermore, the adhesive layers 14 and 15 were arrange | positioned by arrangement | positioning as shown in FIG. The adhesive layers 14 and 15 were provided by using an acrylic adhesive and applying the adhesive to the outer surface of the first sheet 11.
FIG. 10 shows the degree of parasympathetic nerve activity when such a steam heating device 1 is attached to the back side of the wearer's neck. Parasympathetic activity was evaluated based on analysis of heart rate variability. The heart rate is measured using a polygraph system (RMT-1000, manufactured by Nihon Kohden Co., Ltd.), and the high frequency (HF) component of the heart rate variability is measured using heart rate variability analysis software (Lab Chart / HRV module, manufactured by AD Instruments). Calculated. The relative amount of change in the HF component was used as an index of parasympathetic nerve activity. It can be seen that the activity of the parasympathetic nerve is rapidly increased in a short time by applying the steam heating tool 1 to the skin of the wearer. This is considered to be because the steam heating tool 1 rapidly generated heat in a short time and released a large amount of steam. By adopting the configuration of the present invention, air can be reliably supplied from the first sheet 11 side to the heating element 13, the heating element 13 can generate heat rapidly, and a non-breathable sheet 172 is provided. Therefore, it is considered that the steam was preferentially discharged from the first sheet 11 side, and the steam could be reliably brought into contact with the wearer's skin.
In addition, the dotted line and white circle of FIG. 10 have shown the change of the activity of the parasympathetic nerve when the steam heating tool 1 is not used.

(Comparative Example 1)
In the arrangement shown in FIG. 11, a pair of adhesive layers 914 is provided on the first sheet 11. Other points are the same as in the first embodiment. The material of the adhesive layer 914 is the same as that of the adhesive layers 14 and 15. The adhesive layer 914 completely surrounds the heat generating portion 18. Between the pair of adhesive layers 914, an adhesive layer absent region 911 in which no adhesive layer is present is formed.

(Comparative Example 2)
In the arrangement shown in FIG. 12, adhesive layers 914 and 915 are provided on the first sheet 11. Other points are the same as in the first embodiment. The material of the adhesive layers 914 and 915 is the same as that of the adhesive layers 14 and 15. The adhesive layer 914 has the same arrangement and size as the adhesive layer 14. The adhesive layer 915 is disposed on the outer surface of the first sheet 11 in a region outside the heat generating element in the Y-axis direction. Specifically, the first sheet 11 is spaced apart along the long side.

FIG. 13 is a diagram showing a temperature increase change of the steam heating tool 1 of Example 1 in a state of being attached to the back side of the neck and the steam heating tool of Comparative Example 1 in a state of being attached to the back side of the neck.
A thermistor probe (diameter 5 mm) for measuring the skin surface temperature is fixed to the skin behind the neck with a medical tape in a room at an environmental temperature of 25 ° C., and the steam heating tool 1 of Example 1 or the comparative example is formed thereon. 1 steam heating tool was attached. At this time, the position for attaching the steam heating tool 1 of Example 1 or the steam heating tool of Comparative Example 1 was determined so that the position of the probe would be the center of the heating element 13. The thermistor probe was connected to a temperature measurement logger (LT-8, manufactured by Gram Co., Ltd.), and changes in skin temperature were recorded.
Referring to FIG. 13, it can be seen that the temperature rise in Example 1 is larger than that in Comparative Example 1. In Comparative Example 1, since the adhesive layer is provided along the entire outer peripheral edge of the first sheet 11, the air from the first sheet 11 side to the heating element 13 is not sufficiently supplied, and the heat generation temperature is lowered. It is thought that it has been. On the other hand, in Example 1, the adhesive layer does not exist on the outer side in the Y-axis direction of the heating element 13, and the exposed region 112A is formed. The exposed region 112A reaches the outer peripheral edge of the first sheet 11 from the outer peripheral edge of the heating element 13. Therefore, a path extending in one direction in which air can be supplied between the outer peripheral edge of the first sheet 11 and the skin of the wearer is formed, and air easily enters. Then, air can be reliably supplied to the heating element 13 via the first sheet 11. As a result, a desired exothermic temperature was obtained.

Table 1 shows the questionnaire results for 19 subjects using the steam heating tool 1 of Example 1 and the steam heating tool of Comparative Example 2. The test subject used a steam heating tool attached to the back side of the neck.
In Example 1, since there is no adhesive layer on the outer side in the Y-axis direction of the heating element 13 and the exposed region 112A is formed, air is formed between the outer peripheral edge of the first sheet 11 and the skin of the wearer. It is considered that a path extending in one direction capable of supplying water is formed, air easily enters, and the heating element 13 generates sufficient heat. Therefore, it is considered that there were many subjects who felt warmth and steam.
In Example 1, the first adhesive layer 14 and the second adhesive layer 15 were provided, and the adhesive layer was not disposed on the outer side of the heating element 13 in the Y-axis direction. It is thought that it was difficult to peel from the back side.
On the other hand, in Comparative Example 2, it is considered that the heating element 13 did not sufficiently generate heat because the adhesive layer was disposed outside the heating element 13 in the Y-axis direction. Therefore, it is considered that there were relatively few subjects who felt warmth and steam.
Furthermore, in the comparative example 2, since the 2nd adhesion layer 15 is not provided, it is thought that it was easy to peel from the back side of a test subject's neck.

1 Steam heating tool 2 Release paper 3 Exterior body (packaging body)
11 1st sheet 12 2nd sheet 13 Heating element 14 1st adhesion layer 15 2nd adhesion layer 17 Inner bag (2nd container)
18 Heat generation part 21, 22 Peeling part 21A Outer peripheral edge part 21B Outer peripheral edge part 22A Outer peripheral edge part 22B Outer peripheral edge part 100 Exothermic article 111 Exposed area 112 Exposed area (adhesive layer absent area)
112A Exposed area 112B Exposed area 171 Sheet 172 Sheet 911 Exposed area (adhesive layer absent area)
914 Adhesive layer 915 Adhesive layer C Center line S Base material layer W1 Width W2 Width W3 Width

Claims (6)

A first sheet having air permeability;
A second sheet;
A heating element that is disposed between the first sheet and the second sheet and generates steam when it generates heat;
A steam heating device in which the first sheet is located on the wearer side when worn,
On the outer surface of the first sheet, a first adhesive layer and a second adhesive layer are provided,
The first adhesive layer comprises a pair of adhesive layers extending in parallel and spaced apart in parallel,
The second adhesive layer is disposed in a region between the pair of first adhesive layers and extends in the same direction following the first adhesive layer.
In the plan view from the first sheet side, the heating element is located in a region between the first adhesive layer and the second adhesive layer,
In a plan view from the first sheet side, there is no adhesive layer in a region between the first adhesive layer and the second adhesive layer, and the outer surface of the first sheet has air on the heating element. Configured to be supplied,
A steam heating tool having a non-venting layer on the opposite side of the first sheet with the heating element interposed therebetween. The second adhesive layer comprises a pair of spaced adhesive layers,
The steam heating tool according to claim 1, wherein a region between the pair of second adhesive layers does not overlap the heating element in a plan view from the first sheet side. The non-breathable layer is composed of one or a plurality of air-impermeable sheet, steam warming device according to claim 1 or 2 air permeability of the air-impermeable sheet is 80,000 seconds / 100ml or higher. The steam according to any one of claims 1 to 3 , wherein at least one of the first adhesive layer and the second adhesive layer has an end in the extending direction reaching an outer peripheral edge of the first sheet. Heating tool. The steam heating tool according to any one of claims 1 to 4 , wherein the steam heating tool is a steam heating tool for a neck attached to a neck of a wearer. The steam heater according to any one of claims 1 to 5 , wherein the steam heater has a horizontally long shape having a longitudinal direction X and a width direction Y orthogonal to the longitudinal direction X in a plan view.

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