JP2013252321A - Heat generating article - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a heat generating article with excellent handleability, which enables a heater of a type to be stuck to the skin to be bent and compactly housed inside an exterior body.SOLUTION: A heat generating article 100 includes a heater 1 and an exterior body 3 for housing the heater 1. On the outer surface of a first sheet 11 of the heater 1, a pair of first adhesive layers 14 and a pair of second adhesive layers 15 are provided. Between the pair of separated first adhesive layers 14, the pair of second adhesive layers 15 are separately disposed along the separating direction of the pair of first adhesive layers. Then, in the plan view from the side of the first sheet 11, a heating element 13 is positioned between the first adhesive layer 14 and the second adhesive layer 15. The pair of first adhesive layers 14 and the pair of second adhesive layers 15 are separately disposed holding a virtual line therebetween. On the virtual line, the adhesive layer is not provided. The heater 1 is provided with release paper 2 covering the pair of first adhesive layers 14 and the pair of second adhesive layers 15, and the heater 1 is housed in the exterior body 3 in the state of being bent along the virtual line such that the adhesive layers 14 and 15 are on the inner side.

Description

  The present invention relates to an exothermic article.

2. Description of the Related Art Various types of heating tools that are pasted on the skin have been developed.
For example, in the heat generating sheet disclosed in Patent Document 1, a stripe-shaped or dot-shaped adhesive is provided on one side of a sheet-like bag containing a heat generating agent.
Patent Document 2 discloses a heating tool that is attached to the 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.

JP 2000-139990 A JP 2006-204733 A

  Conventionally, the heating tool of the type that is attached to the skin has been housed in the exterior body without being bent. Therefore, an exterior body will become a big thing.

The inventors of the present invention have proposed that a heating tool of the type to be attached to the skin is bent and accommodated in a compact body.
And it thought about protecting the surface affixed on the skin of a heating tool by bend | folding with the skin side inside as a heating tool.
However, when the adhesive layer is present on the skin side and the heating tool with the release paper attached on the adhesive layer is folded together with the release paper so that the adhesive layer is on the inside, if the adhesive layer is present on the fold line, the release paper is Since the thickness is extremely thin and the stretchability is lower than the heating tool, the adhesives adhere to each other, resulting in adhesive duplication, and it becomes difficult to spread the folded heating tool when using the heating tool. I understood.

  Therefore, in addition to the positional relationship between the fold line and the adhesive layer, the present inventors attach the heating tool to the skin with the adhesive layer because the heating element used in the heating tool is composed of a component having a relatively high specific gravity. In this case, it was found that the positional relationship between the adhesive layer and the heating element has a great influence on the ease of peeling, and as a result of extensive studies, the adhesive layer exists on the skin side, and the release paper is on the adhesive layer. The heating tool is attached and folded with the release paper so that the adhesive layer does not exist on the fold line and the heating element is positioned between the adhesive layer and the adhesive layer so that the adhesive layer is on the inside. When folded with release paper and housed in the exterior body, it is easy to spread the folded heating tool, and it is easy to peel off the release paper, and it is hard to stick because it has body hair, it is easy to stick even in places where it is hard to stick, And adherence to heating element Found that hardly be peeled off for a large movement for positional relationship is good and, to complete the exothermic article.

That is, according to the present invention,
First sheet,
A second sheet, and a heating element that is interposed between the first sheet and the second sheet, and the first sheet is located on the wearer side when worn;
A heat-generating article comprising an exterior body that houses the heating tool,
The heating tool has a pair of first adhesive layers and a pair of second adhesive layers on the outer surface of the first sheet,
The pair of first pressure-sensitive adhesive layers are spaced apart, and the pair of second pressure-sensitive adhesive layers are spaced apart from each other along the separation direction of the pair of first pressure-sensitive adhesive layers. In the plan view from the first sheet side, the heating element is located between the first adhesive layer and the second adhesive layer,
The pair of first pressure-sensitive adhesive layers and the pair of second pressure-sensitive adhesive layers are spaced apart with an imaginary line interposed therebetween, and there is no pressure-sensitive adhesive layer on the imaginary line,
The heating tool is provided with a release paper that covers the pair of first adhesive layers and the pair of second adhesive layers,
The heating tool provided with the release paper is provided with a heating article housed in the exterior body in a state of being folded along the imaginary line so that the adhesive layer is on the inside.
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.

  According to this invention, since the heating tool is housed in the exterior body in a folded state, the heating tool can be housed in a compact manner. In addition, the heating tool is folded along a virtual line between the pair of second adhesive layers, but since there is no adhesive layer on the virtual line, when the heating tool is folded, the adhesives in the adhesive layer adhere to each other. Can be prevented. Thereby, when taking out a heating tool from a package and spreading the bent heating tool, a heating tool can be easily extended. In addition, a pair of second adhesive layers are spaced apart along the spacing direction of the pair of first adhesive layers between the pair of spaced apart first adhesive layers, and the heating element is between the first adhesive layer and the second adhesive layer. Because of the position of the adhesive layer, the positional relationship of the adhesive layer has a positive effect on the ease of peeling off the release paper and the ease of sticking to places where it is difficult to stick because of the presence of body hair or difficult to stick. Moreover, since the positional relationship between the heating element and the adhesive layer is good, it is difficult to peel off even with a large movement.

  According to the present invention, a heat-generating article that is easy to use is provided.

It is a top view which shows the heat generating 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 heat generating tool. It is sectional drawing which shows the state which accommodated the heat generating tool in the exterior body. It is a figure which shows the state which peels release paper from a heating tool. It is a figure which shows the state which wore the heating tool in the wearer. It is a top view which shows a modification. It is a top view which shows a comparison form.

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, the outline of the heating tool 1 will be described with reference to FIGS.
FIG. 1 is a plan view from the first sheet 11 side of the heating tool 1 in an unfolded state, and FIG. 6 is a cross-sectional view showing a state in which the heating tool 1 is folded and accommodated in the exterior body 3.
The exothermic article 100 of the present embodiment includes a heating element 13 disposed between the first sheet 11, the second sheet 12, the first sheet 11 and the second sheet 12, and when worn, the heating article 100 is disposed on the wearer side. The heating tool 1 in which the 1st sheet | seat 11 is located, and the exterior body (packaging body) 3 which accommodates the heating tool 1 are provided.
A pair of first adhesive layers 14 and a pair of second adhesive layers 15 are provided on the outer surface of the first sheet 11 of the heating tool 1 for fixing the heating tool 1 to the wearer's skin.
A pair of second adhesive layers 15 are spaced apart from each other between the pair of spaced apart first adhesive layers 14. The separating direction of the pair of second adhesive layers 15 is along the separating direction of the pair of first adhesive layers 14. And the heat generating body 13 is located between the 1st adhesion layer 14 and the 2nd adhesion layer 15 in planar view from the 1st sheet | seat 11 side.
The pair of second adhesive layers 15 are spaced apart from each other with a virtual line (corresponding to the center line C in this embodiment) interposed therebetween. This imaginary line extends from one end of the first sheet 11 to the other end. There is no adhesive layer on this imaginary line.
The heating tool 1 is provided with a release paper 2 that covers the adhesive layers 14 and 15 and is folded along the imaginary line so that the adhesive layers 14 and 15 are on the inner side (packaging). Body) 3.

  Since the heating tool 1 is folded and stored in the exterior body 3, the heating tool 1 can be stored compactly. Moreover, although the heating tool 1 is bent along the virtual line between a pair of 2nd adhesion layers 15, since an adhesion layer does not exist on an imaginary line, when the heating tool 1 is bent, adhesives of an adhesion layer are mutually. Can be prevented from adhering. Thereby, when taking out the heating tool 1 from the exterior body 3 and spreading the bent heating tool 1, the heating tool 1 can be easily spread. In addition, a pair of second adhesive layers 15 are spaced apart along the spacing direction of the pair of first adhesive layers 14 between the pair of spaced apart first adhesive layers 14, and the first adhesive layer 14 and the second adhesive layer 15. Since the heating element 13 is positioned between the adhesive layer and the ease of peeling off the release paper, and the presence of body hair, it is difficult to stick or the eyes are difficult to reach, and the position of the adhesive layer The relationship exhibits a favorable effect, and the positional relationship between the heating element 13 and the adhesive layers 14 and 15 is also good, so that it is difficult to peel off even with a large movement.

Next, with reference to FIGS. 1-8, the heating tool 1 and the heat-emitting article 100 of this embodiment are demonstrated in detail.
The first sheet 11 and the second sheet 12 constitute an outline of the 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 heat generating tool 1, have 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. 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 heating tool 1 is formed in a horizontally long flat shape in a plan view from the first sheet 11 side, so that the heating tool 1 extends in the left-right direction of the wearer on the back side portion of the neck. Can be pasted.

The heating tool 1 is configured by bonding the outer peripheral edges of the first sheet 11 and the second sheet 12 to form an outer bag (first container) that houses a heating element therein.
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 heating tool 1. The first sheet 11 is a breathable sheet, and the air permeability thereof is 8,000 seconds / 100 ml or less. Especially, when the heating tool 1 is a steam heating tool that generates steam toward the wearer's skin, the air permeability of the first sheet 11 is ensured from the viewpoint of reliably supplying the steam generated by the heat generation to the wearer's skin. Is 6,000 seconds / 100 ml or less, more preferably 1,000 seconds / 100 ml or less. Further, the lower limit value of the air permeability of the first sheet 11 is not particularly limited. However, in consideration of the basis weight and the like for preventing the inner bag 17 located inside the first sheet 11 from being seen through, it 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 heating tool 1 is good also as a structure which can be expanded-contracted at least to an 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. In the present embodiment, the heating element 13 generates steam when it generates heat, and is composed of an exothermic composition containing an oxidizable metal, water, and a water retention agent.
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.
The water retaining agent has water retaining ability, and examples thereof include one or more selected from water-absorbing powders such as carbon components, fiber materials, water-absorbing polymers, and vermiculite.
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.

  As the fiber material, it is more preferable to use hydrophilic fibers, especially cellulose fibers. As the cellulose fiber, chemical fiber (synthetic fiber) or natural fiber 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 8,000 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.
The base material layer S may be positioned on the skin side of the heating element 13 when the wearer wears the heating tool 1 on the skin, or may be positioned on the side farther from the skin than the heating element 13. good.
The heating element 13 may be manufactured by a paper making method using a paper machine. In this case, the exothermic composition contains a fiber material in addition to the above-described components. 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 on the skin side of the heating element 13 when the wearer wears the 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.
When the air permeability of the sheet 171 is 8,000 seconds / 100 ml or less, the air permeability of the sheet 171 is ensured, and when the heating tool 1 is a steam heating tool that generates steam toward the wearer's skin, heat is generated. It is possible to easily release the steam generated by the above 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 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 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 ( In the absence of the base material layer S, the air permeability of the entire sheet layer composed of the base material layer S is excluded. 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.
As another embodiment, the sheet 172 may be a breathable sheet. In that case, the air permeability is 8,000 seconds / 100 ml or less, more preferably 5,000 seconds / 100 ml or less, like the sheet 171.
By setting the air permeability of the sheet 172 to 8,000 seconds / 100 ml or less, the air permeability of the sheet 172 can be ensured.
On the other hand, the air permeability of the sheet 172 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 172 to 10 seconds / 100 ml or more, the heat generation temperature can be controlled and abnormal heat generation can be prevented.
As the sheet 172 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.

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 from each other along the longitudinal direction X (that is, 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 1st adhesion layer 14 and the 2nd adhesion layer 15 are for attaching the heating tool 1 to a wearer's skin.
The first adhesive layer 14 is composed of a pair, and the pair of first adhesive layers 14 are disposed apart from each other on the outer surface of the first sheet 11, and are preferably disposed at the end of the first sheet 11 in the X-axis direction.
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. That is, the pair of first adhesive layers 14 are continuous from one end to the other end of the first sheet 11 in the Y-axis direction. Thereby, the heating tool 1 can be affixed to a wearer stably.
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 2nd adhesion layer 15 consists of a pair, and is arranged in the field between a pair of 1st adhesion layers 14 in plane view from the 1st sheet 11 side, and is along the separation direction of a pair of 1st adhesion layers 14 Are spaced apart. Thereby, the heating tool 1 can be affixed to a wearer stably.
In addition, 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. Thereby, since the 1st adhesion layer 14 and the 2nd adhesion layer 15 are arrange | positioned on both sides of the heat generating body 13 with comparatively heavy specific gravity, the heating tool 1 can be affixed stably to a wearer.
The 1st adhesion layer 14 and the 2nd adhesion layer 15 are arranged on both sides of a virtual line, and are preferably arranged in a symmetrical position.
In the present embodiment, the pair of second adhesive layers 15 extends along the Y-axis direction of the first sheet 11 and is disposed in parallel with the first adhesive layer 14. However, the pair of second adhesive layers 15 may not necessarily extend along the Y-axis direction, and may be disposed slightly inclined with respect to the Y-axis direction. Even in this case, the first adhesive layer 14 and the second adhesive layer 15 do not intersect, and the pair of second adhesive layers 15 extend without intersecting each other. In this embodiment, a pair of 2nd adhesion layer 15 is extended in parallel, and becomes a rectangular shape in planar view from the 1st sheet | seat 11 side. Then, both end portions in the extending direction of the pair of second adhesive layers 15 reach the outer peripheral edge of the first sheet 11. That is, the pair of second adhesive layers 15 are continuous from one end to the other end of the first sheet 11 in the Y-axis direction. Thereby, the heating tool 1 can be affixed to a wearer stably.

In addition, the first adhesive layer 14 is disposed at the end of the heating tool 1 in the X-axis direction, and the pair of second adhesive layers 15 are provided in the vicinity of the center line C, so that the heating tool 1 can be surely provided to the wearer. Is preferable because it can be fixed. For example, even if the heating tool 1 is affixed to a part that moves with a characteristic, such as the wearer's neck, the heating tool 1 can be prevented from peeling off.
In the present embodiment, it is preferable in terms of heat generation characteristics that the pair of second adhesive layers 15 do not overlap with the pair of heating elements 13 in a plan view from the outer surface side of the first sheet 11.

In the present embodiment, there is no adhesive layer between the pair of second adhesive layers 15, and an exposed region (adhesive layer absent region) 111 where the outer surface of the first sheet 11 is exposed is formed. The exposed region 111 extends in the Y-axis direction and has a rectangular shape in plan view. In the present embodiment, the exposed region 111 is located at the center of the first sheet 11 in the X-axis direction. The virtual line described above exists in the exposed region 111. That is, there is no adhesive layer on this imaginary line. Both end portions of the exposed region 111 in the Y-axis direction reach the outer peripheral edge of the first sheet 11.
In the present embodiment, in the plan view from the first sheet side, the exposed region 111 is not overlapped with the heating element 13 and further the heating part 18 in terms of ease of bending and fit to the body. preferable. However, as shown in FIG. 9, the exposed region 111 and the heat generating portion 18 may overlap.

In the region between the first adhesive layer 14 on the outer surface of the first sheet and the adjacent second adhesive layer 15, there is no adhesive layer, and the exposed region where the outer surface of the first sheet 11 is exposed (adhesive layer absence region) ) 112 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 | region between the 1st adhesion layer 14 of the 1st sheet | seat 11 outer surface and the 2nd adhesion layer 15 adjacent, the outer surface of the 1st sheet | seat 11 which is a wearer side by the absence of an adhesion layer. It's easy to put on your hand, stick it to difficult places, and it won't peel off even with big movements.
The exposed region 112 includes a pair of exposed regions, that is, an exposed region 112A (first exposed region) and an exposed region 112B (second exposed region). 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. This exposed region 112A is a region located on the outer side in the Y-axis direction than 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 heating tool when the heating tool 1 is attached to the back side of the wearer's neck. Thereby, it can be set as the heat generating tool 1 with easy-to-use. Further, by forming the exposed region 112A on the outer edge of the heat generating element 13 having a relatively heavy specific gravity, the fit to the body is enhanced and it is difficult to peel off even with a large movement.

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, when the heating tool 1 is a steam heating tool that generates steam toward the skin side of the wearer, the steam generated by the heat generation can be reliably supplied to the 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 heating tool 1 of FIG.
The 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 pair of peeling portions 21 and 22 have different shapes.
The peeling portion 21 includes one first adhesive layer 14 of the pair of first adhesive layers 14, one exposed region 112, one of the pair of second adhesive layers 15, one second adhesive layer 15, the exposed region 111, and one pair. Of the second adhesive layer 15, the other second adhesive layer 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 plan view from the outer surface side of the first sheet 11, the above-described virtual line is located on the peeling portion 21. Therefore, when the heating tool 1 is accommodated in the exterior body 3, the peeling portion 21 is bent along a virtual line.

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. In the plan view from the outer surface side of the first sheet 11, the above-described virtual line is not located on the peeling portion 22.
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 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. The separation distance is preferably 1/60 or more, more preferably 1/40 or more, particularly preferably 1/30 or more in the longitudinal direction X of the heating tool 1, 1/4 or less, more preferably 1/5 or less, Most preferably, it is 1/10 or less.
From the above, it is preferable that the outer peripheral edge of the release paper is not located on the adhesive layer in terms of easy release of the release paper. That is, as shown in FIG. 10B, when the outer peripheral edges of the peeling portions 91 and 92 of the release paper 9 are positioned on the adhesive layer 915, the peeling portions 91 and 92 are difficult to peel off.

Here, the size of the heating tool 1 will be described.
The heating tool 1 is worn on the wearer's neck, especially 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.
The separation distance between the outer peripheral edge portion 21B of the peeling portion 21 and the outer peripheral edge portion 22B of the peeling portion 22 is preferably 2 mm or more, more preferably 3 mm or more, particularly more preferably 5 mm or more, and more preferably 50 mm or less. It is 40 mm or less, particularly preferably 20 mm or less.

The heating tool 1 as described above is accommodated in an exterior body (packaging body) 3 with the release paper 2 attached as shown in FIG.
The 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 imaginary line along the extending direction. At this time, the heating tool 1 is folded together with the release paper 2 so that the adhesive layers 14 and 15 side are inside. More specifically, it is bent together with the heating tool 1 in a state where the peeling portion 21 covers the heating tool 1 along the virtual line.
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 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, specifically, it is bent along a virtual line, the heating tool 1 can be easily bent.
Further, when the 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 heating tool. When the heating tool is used, it may be difficult to spread the folded heating tool. On the other hand, in this embodiment, since the adhesion layer is not provided on the imaginary line and the imaginary line is folded, the folded heating tool 1 can be easily spread.
Moreover, since the imaginary line on the exposed region 111 and the heating element 13 do not overlap and it is not necessary to bend the heating element 13, the heating tool 1 can be bent or spread smoothly. In particular, in the present embodiment, the imaginary line does not overlap with not only the heating element 13 but also the heating part 18, so that the heating tool 1 can be bent or spread smoothly.
Furthermore, in this embodiment, the heating tool 1 is fixed to the wearer's skin by the adhesive layers 14 and 15. Therefore, the adhesive layer 14 and 15 and the 1st sheet | seat 11 can be protected by bend | folding the heating tool 1 with the release paper 2, and accommodating in the exterior body 3 so that the adhesive layers 14 and 15 side may become inside. Highly preferred.
Moreover, the heating tool 1 can be folded and accommodated in the exterior body 3, whereby the heating tool 1 can be accommodated in the exterior body 3 in a compact manner, and the entire heat-generating article 100 can be reduced in size.

When the wearer wears the heating tool 1, the outer package 3 is opened and the heating tool 1 is taken out from the outer package 3. Thereafter, the release paper 2 is peeled from the heating tool 1. For example, as shown in FIG. 7, first, the peeling portion 22 is peeled from the 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 heating tool 1 is arranged on the back side of the wearer's neck, and the heating tool 1 is arranged such that the longitudinal direction of the heating tool 1 extends in the left-right direction of the wearer. On the back of the neck. Then, the peeling part 21 is peeled from the heating tool 1 in a state where the 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 heating tool 1 will be fixed to a wearer.
Thus, when fixing one exfoliation part among a plurality of exfoliation parts, exposing one adhesion layer of a plurality of adhesion layers, and fixing to skin, heating tool 1 is fixed to skin. It is possible to prevent the adhesive layers from sticking to each other. After that, in a state where one adhesive layer is fixed to the skin, the remaining peeling portion is peeled off, and an adhesive layer other than the one previously fixed to the skin is pasted to the skin among the plurality of adhesive layers. 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 heat generating tool 1 is a breathable sheet in this embodiment, air is supplied into the heat generating tool 1 through the 2nd sheet | seat 12. 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 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 the heat generating body 13, 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, both ends of the first adhesive layer 14 and both ends of the second adhesive layer 15 reach the outer peripheral edge of the first sheet 11 in a plan view from the first sheet side. It is not limited to.
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 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 in both extending directions. It is preferable that the edge part has reached the outer periphery 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 a region surrounded by one side and the outer peripheral edge of the first sheet 11 is the exposed region 112. 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 exposed. It is preferable to become the region 112.

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 heat generating tool can be simplified.

  Furthermore, in the heating tool 1 of the above-described embodiment, a slit may be formed so as to be extendable and contractible in the X axis direction.

  In relation to the above-described embodiment, the present invention further discloses the following exothermic article and the like.

<1> A first sheet, a second sheet, and a heating element that is disposed between the first sheet and the second sheet, and the first sheet is located on the wearer side when worn. A heating article comprising a tool and an exterior body that houses the heating tool, wherein the heating tool includes a pair of first adhesive layers and a pair of second adhesive layers on an outer surface of the first sheet, The pair of first adhesive layers are spaced apart, and the pair of second adhesive layers are spaced apart along the spacing direction of the pair of first adhesive layers between the pair of spaced apart first adhesive layers, In a plan view from the first sheet side, the heating element is located between the first adhesive layer and the second adhesive layer, and the pair of first adhesive layers and the pair of second adhesive layers are: It is spaced apart across the virtual line, and there is no adhesive layer on this virtual line The heating tool is provided with release paper covering the pair of first adhesive layers and the pair of second adhesive layers, and the heating tool provided with the release paper is such that the adhesive layer is on the inside. A heat-generating article accommodated in the exterior body in a state of being bent along the virtual line.

<2> The heat-generating article according to <1>, wherein the release paper is folded together with the heat-generating tool and accommodated in the exterior body.
<3> The exothermic article according to <1> or <2>, wherein the release paper has a pair of release portions, and one release portion and the other release portion exist.
<4> The imaginary line exists only on the one peeling part, and the one peeling part covers the heating tool along the virtual line and is folded together with the heating tool and accommodated in the exterior body The exothermic article as described in <3>.
<5> The exothermic article according to <3> or <4>, wherein the release paper has a pair of release portions, and one release portion and the other release portion have different shapes.
<6> The release paper has a pair of release portions, one release portion covers one of the first adhesive layers, and the other release portion is adjacent to the one first adhesive layer. The first adhesive layer and the one second adhesive layer are covered when the second adhesive layer is covered, the folded heating tool is spread, and viewed from the outer surface side of the first sheet. In the adhesive layer absence region where the outer surface of the first sheet is exposed, the opposing sides of the pair of peeling portions are located, and the release paper covers the heating tool <3> to <5 The exothermic article according to any of the above.
<7> The heat generating article according to any one of <3> to <6>, wherein the pair of peeling portions are spaced apart and an outer surface of the first sheet is exposed from between the opposing sides.
<8> The heat generating article according to <7>, wherein the spaced distance is 1/60 or more and 1/4 or less in the longitudinal direction X of the heat generating tool 1.
<9> The heating article according to any one of <1> to <8>, wherein the heating tool is configured such that the imaginary line does not overlap the heating element in a state where the heating tool is spread.
<10> A first adhesive layer absence region where no adhesive layer is present is formed between the pair of second adhesive layers, and both end portions of the first adhesive layer absence region are outside the first sheet. The imaginary line extends in one direction so as to reach a peripheral edge, and the imaginary line extends in the one direction within the first adhesive layer-free region. The exothermic article as described.
<11> The heat generating article according to any one of <1> to <10>, wherein the heat generating article is configured to be stretchable along a longitudinal direction X in a plan view from the first sheet side.
<12> The release paper has a pair of release portions, and when viewed in plan from the outer surface side of the first sheet, the adhesive layers extend in parallel with each other, and are disposed between the pair of second adhesive layers. A first adhesive layer absent region where no adhesive layer is present is formed, and a second adhesive layer absent region is formed between the adjacent second adhesive layer and the first adhesive layer. When the width is a direction perpendicular to the extending direction of each adhesive layer of the one adhesive layer absent region, the second adhesive layer absent region, the width dimension of the first adhesive layer absent region is It is smaller than the width dimension of the second adhesive layer-free region, and when the folded heating tool is expanded and viewed in plan from the first sheet outer surface side, in the second adhesive layer-free region, The opposing sides of the pair of peeling portions are located, and the opposing sides are in the second adhesive layer absent region. So as to extend I, heat generation article according to <10>, wherein the release paper is attached to the heating tool.
<13> The heating element generates steam by generating heat, and the heating tool is configured such that the steam generated by the heating element is discharged to the outside from the first sheet side <1> thru | or <12> exothermic article in any one.

1 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 parts 21 and 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 (adhesive layer absence area)
112 Exposed area (adhesive layer absence area)
112A Exposed area 112B Exposed area 171 Sheet 172 Sheet 915 Adhesive layer C Center line (virtual line)
S base material layer W1 width W2 width W3 width

Claims (8)

First sheet,
A second sheet, and a heating element that is interposed between the first sheet and the second sheet, and the first sheet is located on the wearer side when worn;
A heat-generating article comprising an exterior body that houses the heating tool,
The heating tool has a pair of first adhesive layers and a pair of second adhesive layers on the outer surface of the first sheet,
The pair of first pressure-sensitive adhesive layers are spaced apart, and the pair of second pressure-sensitive adhesive layers are spaced apart from each other along the separation direction of the pair of first pressure-sensitive adhesive layers. In the plan view from the first sheet side, the heating element is located between the first adhesive layer and the second adhesive layer,
The pair of first pressure-sensitive adhesive layers and the pair of second pressure-sensitive adhesive layers are spaced apart from each other across an imaginary line, and no adhesive layer is provided on the imaginary line,
The heating tool is provided with a release paper that covers the pair of first adhesive layers and the pair of second adhesive layers,
The heating tool provided with the release paper is a heat-generating article housed in the exterior body in a state of being folded along the imaginary line so that the adhesive layer is on the inside.   The heat-generating article according to claim 1, wherein the release paper is folded together with the heat-generating tool and accommodated in the exterior body.   The exothermic article according to claim 1 or 2, wherein the release paper has a pair of release portions, and one release portion and the other release portion exist.   The imaginary line exists only on the one peeling part, and the one peeling part covers the heating tool along the virtual line and is folded together with the heating tool and accommodated in the exterior body. The heat-generating article according to claim 3.   The exothermic article according to claim 3 or 4, wherein the release paper has a pair of release portions, and one release portion and the other release portion have different shapes. The release paper has a pair of release portions,
One peeling portion covers one of the first pressure-sensitive adhesive layers, and the other peeling portion covers one of the second pressure-sensitive adhesive layers adjacent to the one first pressure-sensitive adhesive layer,
The outer surface of the first sheet between the one first adhesive layer and the one second adhesive layer is exposed when the bent heating tool is spread and viewed from the outer surface side of the first sheet. The heat-generating article according to any one of claims 3 to 5, wherein one side of the pair of peeling portions facing each other is located in the adhesive layer-free region, and the release paper covers the heating tool.   The heat generating article according to any one of claims 3 to 6, wherein the pair of peeling portions are spaced apart and an outer surface of the first sheet is exposed from between the opposing sides.   The exothermic article according to claim 7, wherein the spaced distance is 1/60 or more and 1/4 or less in the longitudinal direction X of the heating tool.

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