JP2012090873A - Water-absorbing exothermic patch sheet - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a water-absorbing exothermic patch sheet which can absorb a body fluid discharged from a body, while promoting discharge of the body fluid containing waste matter outside the body, and which is good in a feeling of use.SOLUTION: An exothermic composition containing a metal salt which dissolves in water and generates heat is enclosed in a bag body having body fluid permeability. The water-absorbing exothermic patch sheet thus constituted includes an adhesive layer for pasting the sheet on the body and heat is generated by absorption of the body fluid discharged from the body.

Description

  The present invention relates to a water-absorbing patch sheet that absorbs body fluid such as sweat.

  Conventionally, various water-absorbing patch sheets have been proposed for the purpose of absorbing bodily fluids discharged from the skin. For example, a sheet has been proposed in which an adhesive is applied on a support, and the top is covered with a release paper, and the release paper is removed at the time of bonding and adhered to the skin (for example, Patent Document 1). In addition, a water-absorbing adhesive sheet in which a powder obtained from pyroligneous acid solution is filled in a bag-like sheet having a breathable surface for the purpose of imparting blood circulation promoting effect and waste discharging effect to the outside of the body. Has been proposed (for example, Patent Document 2).

JP 2003-116602 A Japanese Patent No. 3195318

  However, from the viewpoint of promoting the discharge of waste products from the body, an adhesive sheet that further improves the effect of absorbing bodily fluids such as sweat from the body is desired. Further, since the patch sheet that has absorbed the body fluid is in close contact with the skin for a long time, it is necessary to prevent the feeling of use from becoming uncomfortable.

  Accordingly, the present invention provides a water-absorbing exothermic adhesive sheet that can absorb body fluid discharged from the body while promoting the discharge of body fluid containing waste products to the outside of the body and has a good feeling of use. With the goal.

  The water-absorbing exothermic adhesive sheet according to the first aspect is an adhesive layer for encapsulating a heat generating composition containing a metal salt that dissolves in water and generates heat in a body fluid-permeable bag body. And generating heat by absorbing bodily fluids discharged from the body.

  The water-absorbing exothermic adhesive sheet according to the second aspect is the water-absorbing exothermic adhesive sheet according to the first aspect, wherein the exothermic composition is composed of 50 to 90% by weight of a metal salt and 1 to 50% by weight of a water absorbing material. % Is included.

  The water-absorbing exothermic adhesive sheet according to the third aspect is the water-absorbing exothermic adhesive sheet according to the second aspect, wherein the metal salt is calcium chloride.

  The water-absorbing exothermic adhesive sheet according to the fourth aspect is the water-absorbing exothermic adhesive sheet according to any one of the first to third aspects, wherein the bag is positioned on the outer sheet and the side to be attached to the body. A fixed sheet having a pressure-sensitive adhesive layer on the inner surface side and extending outward from the periphery of the outer sheet on the outer surface side of the outer sheet. A release paper is provided on at least a portion of the adhesive layer that extends outward from the periphery of the outer sheet.

  The water-absorbing exothermic adhesive sheet according to the fifth aspect is the water-absorbing exothermic adhesive sheet according to any one of the first to third aspects, wherein the bag is positioned on the outer sheet and the side to be attached to the body. And an inner sheet having body fluid permeability, and an adhesive layer and a release paper are provided on the outer surface side of the inner sheet that is affixed to the body.

  The water-absorbing exothermic adhesive sheet according to the sixth aspect is the water-absorbing exothermic adhesive sheet according to the fourth or fifth aspect, wherein the inner sheet is made of a nonwoven fabric.

  According to the water-absorbing exothermic adhesive sheet according to the first aspect, the exothermic composition containing a metal salt that generates heat by being dissolved in water is enclosed in a body fluid-permeable bag, and the exothermic composition intentionally contains water. Instead, the body fluid discharged from the body is absorbed, and the absorbed body fluid causes the metal salt to generate heat. And the generated heat is given to the sticking part of the body. Accordingly, it is possible to promote the discharge of the body fluid containing the waste by heat to the outside of the body, and it is possible to absorb more body fluid.

  According to the water-absorbing exothermic adhesive sheet according to the second aspect, the exothermic composition contains 50 to 90% by weight of the metal salt and 1 to 50% by weight of the water-absorbing material. It becomes possible to improve the discharge of body fluids, increase the body fluid absorption effect, and obtain a good feeling of use.

  According to the water-absorbing exothermic adhesive sheet according to the third aspect, the exothermic effect can be improved.

  According to the water-absorbing exothermic sticking sheet according to the fourth aspect, it is possible to appropriately stick to the sticking target site that promotes the discharge of body fluid, and it is possible to efficiently absorb the body fluid.

  According to the water-absorbing exothermic adhesive sheet according to the fifth aspect, the water-absorbing exothermic adhesive sheet can be made compact.

  According to the water-absorbing exothermic adhesive sheet according to the sixth aspect, since the inner sheet is made of a nonwoven fabric, the body fluid permeability is improved, and the effects of absorbing body fluid and generating heat can be improved.

It is a schematic sectional drawing which shows the structure of the water absorbing heat_generation | fever sticking sheet which is 1st Embodiment of this invention. It is a schematic sectional drawing which shows the structure of the water absorbing heat generating sticking sheet which is 1st Embodiment of the state stuck on skin. It is a schematic sectional drawing which shows the structure of the water absorbing heat_generation | fever sticking sheet which is 2nd Embodiment of this invention. It is a schematic sectional drawing which shows the structure of the water absorbing heat generating sticking sheet which is 2nd Embodiment of the state stuck on skin. It is a figure which shows the example of the shape of the adhesion layer seen toward the direction of the inner side sheet from the release paper side in 2nd Embodiment. It is a figure which shows the example of the shape of the adhesion layer seen toward the direction of the inner side sheet from the release paper side in 2nd Embodiment. It is a figure which shows the example of the shape of the adhesion layer seen toward the direction of the inner side sheet from the release paper side in 2nd Embodiment. It is a figure which shows the example of the shape of the adhesion layer seen toward the direction of the inner side sheet from the release paper side in 2nd Embodiment. It is a schematic sectional drawing which shows the structure of the water absorbing heat_generation | fever sticking sheet which is 3rd Embodiment of this invention. It is a schematic sectional drawing which shows the structure of the water absorbing heat generating sticking sheet which is 3rd Embodiment of the state stuck on skin. It is a graph which shows the relationship between sticking time and sole temperature.

[First embodiment]
FIG. 1 is a schematic cross-sectional view showing a configuration of a water-absorbing exothermic adhesive sheet 1A according to the first embodiment of the present invention. The water-absorbing exothermic adhesive sheet 1A includes a bag body 10 having body fluid permeability. The bag body 10 is configured in a bag shape by heat-sealing the outer peripheral edge of the outer sheet 7 and the outer peripheral edge of the inner sheet 9 that is located on the side to be attached to the body and has fluid permeability. The bag body 10 encloses a heat generating composition 4 containing a metal salt that generates heat when dissolved in water. Further, the wide fixing sheet 5 extending outward from the peripheral edge of the outer sheet 7 has an adhesive layer on the inner surface side, and is attached to the outer surface side of the outer sheet 7.

  Furthermore, in order to protect the adhesive layer 6 before use, the release paper 11 is attached to the extended portion of the adhesive layer 6 and the outer surface side of the inner sheet 9. In the first embodiment, the release paper 11 is provided so as to cover the inner sheet 9, but may be provided only at least in the extended portion of the adhesive layer 6. Then, as shown in FIG. 2, the release paper 11 is peeled off and attached to the skin 20 such as the sole of the user. And the bodily fluid discharged | emitted from the sticking site | part of the body permeate | transmits the inner side sheet | seat 9, and is absorbed by the water absorbing heat_generation | fever sticking sheet 1A. The water-absorbing exothermic adhesive sheet 1A is characterized in that it generates heat when the absorbed body fluid reacts with the metal salt that generates heat by being dissolved in the water enclosed in the bag body 10. The generated heat is applied to the user's skin 20 through the inner sheet 9.

  The metal salt contained in the exothermic composition 4 is preferably 50 to 90% by weight, more preferably 70 to 90% by weight. When the metal salt is less than 50% by weight, heat generation is not sufficient, and when the metal salt exceeds 90% by weight, the heat generation amount increases, but the sticky feeling due to the dissolved metal salt becomes strong.

  The water absorbing material contained in the exothermic composition 4 is preferably 10 to 50% by weight, more preferably 10 to 30% by weight. If the water-absorbing material is less than 10% by weight, the ability to retain the bodily fluid adsorbed with the metal salt is low, so that the bodily fluid oozes out of the sheet, the skin becomes sticky, and clothing, bedding, etc. It can also cause fouling. On the other hand, when the water-absorbing material exceeds 50% by weight, the body fluid absorbability is improved, but a sufficient amount of metal salt for heat generation cannot be blended. The water-absorbing exothermic adhesive sheet 1A according to the first embodiment of the present invention has a blending ratio of 50 to 90% by weight of the metal salt contained in the exothermic composition 4 and 10 to 50% by weight of the water-absorbing material. Therefore, it is possible to improve the discharge of body fluid by generating heat to an appropriate temperature, and the body fluid absorption effect is enhanced, so that a good feeling of use can be obtained. Moreover, the exothermic effect of the water-absorbing exothermic adhesive sheet 1A can not only improve the discharge of body fluids but also improve the feeling of use by imparting a warm feeling to the skin.

  As a metal salt which generates heat when dissolved in water, a known salt can be used, and examples thereof include metal chlorides such as calcium chloride and magnesium chloride, metal sulfates such as calcium sulfate and magnesium sulfate, and the like. Further, calcium chloride, magnesium chloride, calcium sulfate, magnesium sulfate and the like include hydrates thereof.

  The water-absorbing material retains the body fluid absorbed through the inner sheet 9 and is used for the exothermic reaction of the metal salt. As the water-absorbing agent, known substances can be used, and are not particularly limited as long as they are water-absorbing substances. For example, powders such as wood powder, starch, dextrin, vermiculite, calcium silicate, silica gel, leechite, Examples include perlite, silica-based porous material, alumina, pulp, wood powder, starch, dextrin, water-absorbing polymer, and the like, and mixtures thereof. It is also possible to use a powder of wood powder, starch, dextrin or the like containing powdered leaves of plants such as eucalyptus or mugwort. In addition, it is also possible to add another component as needed.

  The outer sheet 7 constituting the bag body 10 is made of a synthetic resin film. Specifically, for example, polyester, polyethylene, polypropylene, polyamide resin, polyethylene terephthalate, ethylene-propylene copolymer, ethylene-vinyl acetate copolymer, polyvinyl chloride resin, polyvinylidene chloride resin, polystyrene resin, polycarbonate It is possible to arbitrarily select and use a film of other known resin such as a resin based on resin or polyvinyl alcohol. These sheets may have a single layer or a multilayer structure of two or more. Furthermore, the outer sheet 7 may be formed by vapor-depositing silicon oxide, aluminum, aluminum oxide or the like on the synthetic resin film in order to suppress evaporation of moisture. As a transparent vapor deposition film, in the case of the transparent vapor deposition film which vapor-deposited aluminum, since an inside is visible slightly, it is especially preferable.

  The inner sheet 9 constituting the fixed sheet 5 and the bag body 10 is made of a nonwoven fabric made of synthetic resin. Although it does not specifically limit as a synthetic resin used as the raw material of a nonwoven fabric, A polypropylene fiber, a nylon fiber, a vinylon fiber, a polyester fiber, a polyethylene fiber etc. can be used. As a manufacturing method of a nonwoven fabric, it can manufacture by well-known methods, such as a spun bond method, a needle punch method, a spun lace method, a thermal bond method, an air through method. Since the inner sheet 9 is made of non-woven fabric, the body fluid permeability is improved, and the effects of body fluid absorption and heat generation can be improved.

  The adhesive layer 6 is provided on the inner surface side of the fixed sheet 5. The material of the pressure-sensitive adhesive layer 6 is not particularly limited as long as it can be applied to the skin. Examples thereof include known acrylic pressure-sensitive adhesives and pressure-sensitive adhesives such as rubber-based hot melts.

  The release paper 11 is composed of a paper as a base material and a release layer in contact with the adhesive layer 6. A well-known thing can be selected for a base material and a peeling layer. Moreover, you may provide the release paper 11 only in the outer peripheral part which contacts the skin 20 of a sticking site | part directly among the adhesion layers 6 of FIG.

According to this embodiment, the exothermic composition 4 containing a metal salt that generates heat when dissolved in water is sealed in the bag body 4 that is permeable to bodily fluids, and the exothermic composition 4 does not include water. The body fluid discharged from the body is absorbed, and the absorbed body fluid causes the metal salt to generate heat to an appropriate temperature for the body. And the generated heat is given to the sticking part of the body. Accordingly, it is possible to promote the discharge of the body fluid containing the waste by heat to the outside of the body, and it is possible to absorb more body fluid. Moreover, since the absorption effect of a bodily fluid is high, sweat does not ooze out from the water-absorbing exothermic adhesive sheet 1A, and a good feeling of use can be obtained despite being in close contact with the skin for a long time. Furthermore, the heat-generating effect of the water-absorbing exothermic patch sheet 1A can give a warm feeling to the skin and provide a good feeling of use.
[Second Embodiment]

  In the second embodiment of the water-absorbing exothermic adhesive sheet of the present invention, the adhesive layer 6 is provided on the outer surface side to be attached to the body of the inner sheet 9, and the release paper 11 is further provided thereon. FIG. 3 is a schematic cross-sectional view showing a configuration of a water-absorbing exothermic adhesive sheet 1B according to the second embodiment of the present invention. FIG. 4 is a schematic cross-sectional view showing the configuration of a water-absorbing exothermic adhesive sheet 1B that is the second embodiment in a state of being attached to the skin. Since the functional configuration of the second embodiment is similar to that of the above-described first embodiment, the same components are denoted by the same reference numerals, description thereof is omitted, and different configurations will be described.

  In the water-absorbing exothermic patch sheet 1B, the bag body 10 is composed of an outer sheet 7 and an inner sheet 9 having a body fluid permeability, and the inner sheet 9 side is stuck to the body. As shown in FIG. 4, the release paper 11 is peeled off and attached to the skin 20 by the adhesive layer 6 provided on the outer surface side of the inner sheet 9. Therefore, the size of the water-absorbing exothermic patch sheet can be configured compactly.

  In addition, the adhesive layer 6 of the water-absorbing exothermic adhesive sheet 1B is provided with a gap on the outer surface side of the inner sheet 9 so as not to significantly impair the body fluid permeability of the inner sheet 9. Therefore, also in the water-absorbing exothermic patch sheet 1B of the second embodiment, as in the first embodiment described above, it is possible to promote the discharge of bodily fluids containing waste products by heat and absorb more bodily fluids. Is possible.

5-8 is a figure which shows the example of the shape of the adhesion layer 6 seen toward the direction of the inner sheet | seat 9 from the release paper 11 side in 2nd Embodiment. The adhesive layer 6 is, for example, on the outer surface side of the inner sheet 9, a comb-like adhesive layer 6A having an interval of 5 mm to 10 mm as shown in FIG. 5, an oblique adhesive layer 6B as shown in FIG. 7 can be provided like a grid-like adhesive layer 6C as shown in FIG. Further, by mixing water into the acrylic adhesive and boiling the adhesive, it becomes a pressure-sensitive adhesive containing bubbles, and by spraying it, as shown in FIG. Alternatively, it may be shaped like an adhesive layer 6D having a portion that is coated in a substantially circular shape so as to have water permeability and air permeability. Furthermore, it can be comprised from the adhesion part arrange | positioned in various shapes, such as a polka dot shape, and it does not specifically limit about the magnitude | size and shape of an adhesion part.
[Third embodiment]

  In the third embodiment of the water-absorbing exothermic adhesive sheet of the present invention, the fixing sheet having the adhesive layer on one side and the bag body in which the exothermic composition is enclosed are separated. FIG. 9 is a schematic cross-sectional view showing a configuration of a water-absorbing exothermic adhesive sheet 1C according to the third embodiment of the present invention. FIG. 10 is a schematic cross-sectional view showing a configuration of a water-absorbing exothermic adhesive sheet 1C that is the third embodiment in a state of being attached to the skin. Since the functional configuration of the third embodiment is similar to that of the first embodiment described above, the same components are denoted by the same reference numerals, description thereof is omitted, and different configurations will be described.

In the water-absorbing exothermic adhesive sheet 1C, the adhesive fixing sheet 15 and the exothermic sheet 16 are separated. The adhesive fixing sheet 15 has an adhesive layer 6 on one side, the wide fixing sheet 5 extending outward from the periphery of the outer sheet 7, and the adhesive layer 6 to protect the adhesive layer 6 before use. And release paper 11 attached to the outer surface side. The heat generating sheet 16 includes a heat generating composition 4 and a bag body 10 for enclosing the heat generating composition 4. Then, as shown in FIGS. 9 and 10, the release paper 11 is peeled off and attached to the skin 20 such as the sole of the user. Also in the water-absorbing exothermic adhesive sheet 1C of the third embodiment, similarly to the first embodiment described above, it is possible to promote the discharge of bodily fluids containing waste products by heat and absorb more bodily fluids. It becomes. In addition, since the adhesive fixing sheet 15 and the heat generating sheet 16 are separated, it is possible to replace only the adhesive fixing sheet 15 when the adhesive strength of the adhesive fixing sheet 15 decreases during use. .
[Example]

  Hereinafter, the water-absorbing exothermic adhesive sheet of the present invention will be described with reference to examples and comparative examples, but the present invention is not limited to these examples. In each of Examples 1 to 3 and Comparative Examples 1 to 3, water-absorbing exothermic adhesive sheets having the same shape as in the first embodiment were prepared. Further, in both Examples 1 to 3 and Comparative Examples 1 to 3, the fixing sheet is a polypropylene fiber nonwoven fabric, and the outer sheet is a two-layer resin film in which a polypropylene layer is laminated on the outer side of the polyester layer. Aluminum vapor deposition was performed on the inner sheet side. The pressure-sensitive adhesive was an acrylic pressure-sensitive adhesive, and the inner sheet was a polypropylene fiber nonwoven fabric. The size of the pasting part (inner sheet) of the water-absorbing exothermic adhesive sheet of Examples and Comparative Examples was 75 mm × 45 mm, and the weight of the exothermic composition was 4.5 g. Table 1 shows the structures of the exothermic compositions of Examples 1 to 3 and Comparative Examples 1 to 3. In Examples 1-3 and Comparative Examples 1-2, calcium chloride dihydrate was used as the metal salt. In Comparative Example 3, as in the case of the conventional water-absorbing exothermic patch sheet, only the wood powder as the absorbent material was enclosed in the bag. Then, the release paper was peeled off, and a water-absorbing exothermic adhesive sheet was affixed to the soles of adult males for measurement.

(1) Absorption amount of sweat About Examples 1-3 and Comparative Examples 1-3, the pasting time measured the amount of sweat absorption in 4 hours. Measurement was carried out by measuring three samples for each of Examples 1 to 3 and Comparative Examples 1 to 3 under conditions of a room temperature of 22 ° C. and a humidity of 52%. The amount of weight increase of each sample is taken as the amount of absorbed sweat, and the results of the average value of each three samples are shown in Table 2.

  As shown in Table 2, the absorbed amount of sweat in Examples 1 to 3 was 0.7 to 0.8 g. On the other hand, the absorbed amount of sweat in Comparative Examples 1 to 3 was 0.4 to 0.7 g, and all of Examples 1 to 3 gave good results.

(2) The temperature of the sticking part About Examples 1-3 and Comparative Examples 1-3, the temperature of the sole which stuck the water-absorbing exothermic sticking sheet was measured.
The temperature at the time of measurement was around 22 ° C. and the humidity was 52%. The sticking time was measured up to 240 minutes. A thermocouple was attached between the water-absorbing exothermic adhesive sheet and the application part of the sole, so that the change in the surface temperature of the sole could be recorded.
The measurement results are shown in FIG. FIG. 11 is a graph showing the relationship between the application time and the sole temperature. The horizontal axis of the graph represents the pasting time (minutes), and the vertical axis of the graph represents the temperature (° C.) of the sole surface. As shown in FIG. 11, the temperatures in Examples 1 to 3 increased satisfactorily, but in Comparative Examples 1 and 2, the temperature increased only to around 32 ° C. Moreover, in the comparative example 3, it was less than 30 degreeC.

(3) Maximum temperature Table 3 shows the evaluation results of Examples 1 to 3 and Comparative Examples 1 to 3 for the maximum temperature in the measured value of the sole temperature.

The maximum temperature of the measured value was evaluated according to the following criteria.
◎: 35 ° C. or more ○: 33 ° C. to less than 35 ° C. Δ: 31 ° C. to less than 33 ° C. x: less than 31 ° C. As shown in Table 3, Examples 1 to 3 are the highest compared to Comparative Examples 1 to 3. Good for temperature.

(4) Temperature persistence Table 3 shows the evaluation results of Examples 1 to 3 and Comparative Examples 1 to 3 for the temperature persistence in the measured values of the sole temperature.
The temperature sustainability of the measured value was evaluated according to the following criteria.
A: Duration of 30 ° C. or more 130 minutes or more ○: Duration of 30 ° C. or more 100 minutes to less than 130 minutes Δ: Duration of 30 ° C. or more duration 70 minutes to less than 100 minutes ×: Duration of 30 ° C. or more Less than 70 minutes As shown in Table 3, Examples 1 to 3 were better in temperature sustainability than Comparative Examples 1 to 3.

(5) Rise to the maximum temperature Table 3 shows the evaluation results of Examples 1 to 3 and Comparative Examples 1 to 3 for the rise to the maximum temperature in the measured value of the sole temperature.
Based on the time required for the sole temperature to reach the maximum temperature, the rise to the maximum temperature was evaluated according to the following criteria.
◎: Less than 20 minutes ○: 20 minutes to less than 30 minutes Δ: Less than 30 to 40 minutes ×: 40 minutes or more In Comparative Example 3, the maximum temperature of the sole temperature did not reach 30 ° C. or more. The evaluation result was set as x. As shown in Table 3, Examples 1 to 3 were better in rising up to the maximum temperature than Comparative Examples 1 to 3.

(6) Stickiness Feeling Examples 1 to 3 and Comparative Example 1 to 3 and Comparative Examples 1 to 3 were compared with Examples 1 to 3 and the sticky feeling due to sweat that had oozed from the water-absorbing exothermic patch sheet. The evaluation results of Examples 1 to 3 are shown in Table 3.
The stickiness was evaluated according to the following criteria.
A: There is no stickiness and it is dry.
○: There is almost no stickiness.
Δ: A little sticky feeling is felt.
×: Strong stickiness.
As shown in Table 3, Examples 1 to 3 were better than Comparative Examples 1 to 3 with less stickiness.

(7) Comprehensive evaluation in exothermic effect and sticky feeling Examples 1-3 and Comparative Examples 1-3 in which the exothermic effect consisting of the above-mentioned maximum temperature, temperature sustainability, and rise to the maximum temperature and sticky feeling were comprehensively judged. Table 3 shows the overall evaluation results.
The overall evaluation was evaluated according to the following criteria.
A: Evaluation results for the maximum temperature, temperature sustainability, rise to the maximum temperature, and stickiness are only ◎ or ○.
○: The evaluation results for the maximum temperature, temperature sustainability, rise to the maximum temperature, and stickiness are ◎, ○, and Δ.
(Triangle | delta): The evaluation result about the maximum temperature, temperature sustainability, the standup to the maximum temperature, and a sticky feeling contains one x.
X: The evaluation result about the maximum temperature, the temperature sustainability, the rise to the maximum temperature, and the sticky feeling includes two or more Xs.

  As shown in Table 3, in the results of the test, the water-absorbing exothermic adhesive sheet of the present invention has a fast rise time to the maximum temperature, and satisfactory performance can be obtained in terms of the maximum temperature and temperature sustainability. Exothermic effect was shown. In addition, the water-absorbing exothermic adhesive sheet of the present invention had little stickiness and good usability. On the other hand, although the comparative example 1 obtained the result excellent in temperature sustainability and the perspiration effect, the start-up to the maximum temperature was bad and it did not reach the Example in comprehensive evaluation. In Comparative Example 2, although excellent results were obtained at the maximum temperature and the rise to the maximum temperature, the sticky feeling was strong, and the comprehensive evaluation did not reach the examples. Although the comparative example 3 did not have a sticky feeling and obtained an excellent result in the feeling of use, the heat generation effect was inferior. In Examples 1 to 3, good results were also obtained in the amount of sweat absorbed. From the above, it was shown that the water-absorbing exothermic adhesive sheet of the present invention can obtain a comprehensive result.

  As mentioned above, although embodiment of this invention was described, this invention is not limited to the thing of the content demonstrated above. The configuration described in the above embodiment may be partially replaced as appropriate as long as no contradiction occurs.

DESCRIPTION OF SYMBOLS 1 Water-absorbing exothermic sticking sheet 4 Exothermic composition 5 Fixed sheet 6 Adhesive layer 7 Outer sheet 9 Inner sheet 10 Bag body 11 Release paper

Claims (6)

In a bag body fluid permeable,
Encapsulating a heat generating composition containing a metal salt that generates heat when dissolved in water,
It has an adhesive layer for attaching to the body,
A water-absorbing exothermic adhesive sheet, which generates heat by absorbing bodily fluids discharged from the body.   The water-absorbing exothermic adhesive sheet according to claim 1, wherein the exothermic composition contains 50 to 90 wt% of a metal salt and 10 to 50 wt% of a water absorbing material.   The water-absorbing exothermic adhesive sheet according to claim 2, wherein the metal salt is calcium chloride. The bag body is composed of an outer sheet and an inner sheet that is located on the side to be affixed to the body and has body fluid permeability,
A wide fixed sheet having an adhesive layer on the inner surface side and extending outward from the outer sheet peripheral edge is attached to the outer surface side of the outer sheet,
The water-absorbing exothermic adhesive sheet according to any one of claims 1 to 3, wherein a release paper is provided on at least a portion of the adhesive layer that extends outward from the periphery of the outer sheet. The bag body is composed of an outer sheet and an inner sheet that is located on the side to be attached to the body and has fluid permeability,
The water-absorbing exothermic adhesive sheet according to any one of claims 1 to 3, wherein an adhesive layer and a release paper are provided on an outer surface of the inner sheet that is attached to the body.   The water absorbent exothermic adhesive sheet according to claim 4 or 5, wherein the inner sheet is made of a nonwoven fabric.

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