JP2017006624A - Device for heat transpiration - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a device for heat transpiration, which inhibits the reaction or decomposition of at least one active ingredient contained in a heat transpiration agent before use and an organic foaming agent, so that the degree of freedom for selecting the type of heat transpiration agent can be increased with excellent stability before use.SOLUTION: A heat transpiration device includes a housing part 30 for housing a heat transpiration agent 27 which contains at least one active ingredient and an organic foaming agent. By heating the heat transpiration agent 27, the active ingredient is volatilized. At least one active ingredient and the organic foaming agent are separately housed in the housing part 30, such that no contact with each other is made.SELECTED DRAWING: Figure 1

Description

  The present invention relates to a heat transpiration apparatus.

Heating transpiration devices are known that heat and evaporate active ingredients to control pests, release aromatic substances, disinfect and deodorize indoors and outdoors.
For example, as shown in FIG. 2, a heating and transpiration apparatus as disclosed in Patent Documents 1 and 2 below is used in the form of a self-heating device 21, and the self-heating device 21 is a bottomed cylindrical outer container. 22, and a hydrothermal agent 28 is accommodated from the bottom to the side. The outer container 22 has a plurality of water holes at the bottom, and the water holes are closed by a member having water permeability, for example, a nonwoven fabric sheet 23. Further, the inside of the outer container 22 is partitioned into two spaces by a partition member 24. The partition member 24 is cylindrical and has a bottom having a substantially hollow hemispherical shape, and its side wall is disposed concentrically with the peripheral wall of the outer container 22.

  The hydrothermal exothermic agent 28 is filled in a space formed by the peripheral wall of the outer container 22, the partition member 24, and the nonwoven fabric sheet 23. A heating transpiration agent 27 made of an organic foaming agent or other additive to be generated is accommodated. Further, the upper open surface of the outer container 22 is covered with a lid member 25 having a plurality of openings formed in a region corresponding to the upper open surface of the partition member 24. It is blocked by a hot melt film 26 having vent holes.

  The hydrothermal exothermic agent 28 is a substance that self-heats by reaction with water. For example, calcium oxide (quick lime) is used. Therefore, in use, by immersing the self-heating device 21 in the container 29 containing the water W, the water W flows into the outer container 22 through the water passage hole and comes into contact with the hydrating exothermic agent 28. The heat evaporating agent 27 is heated by the reaction heat, and both the active ingredient and the gas generated by the thermal decomposition of the organic foaming agent evaporate, and are released to the outside (such as the room) through the vent holes of the hot melt film 26. Further, since the heat melting film 26 is thermally melted by heat radiation from the heat transpiration agent 27, heat of the outer container 22 and contact with the transpirated active ingredient, the transpirated active ingredient is the lid member 25 from a relatively early stage of transpiration. It is efficiently discharged outside through the opening.

JP 2005-120028 A JP 2010-246351 A

  The kind of heating transpiration agent 27 is variously changed according to the intended purpose of the heating transpiration apparatus. Therefore, when the heat transpiration agent 27 is accommodated in the accommodating portion, depending on the combination of the active ingredient and the organic foaming agent, the reaction or decomposition may occur due to contact between the two during storage or transportation before use of the heat transpiration device. And the heat transpiration agent may become unstable.

  Therefore, an object of the present invention is to suppress the reaction and decomposition of at least one of the active ingredients contained in the heat transpiration agent and the organic foaming agent, increase the degree of freedom in selecting the type of heat transpiration agent, and before use. It is in providing the heating transpiration apparatus which is excellent in stability of the.

The present invention is as follows.
1. A heating transpiration device comprising a storage unit for containing a heating transpiration agent containing at least one active ingredient and an organic foaming agent, wherein the heating transpiration agent is heated to volatilize the active ingredient,
A heating and transpiration apparatus in which at least one of the active ingredients and the organic foaming agent are housed separately in the housing portion so as not to contact each other.
2. At least one of the active ingredients and any one of the organic foaming agents are sealed in a bag or capsule, or are included by an inclusion compound so that they do not contact each other. 2. The heating and transpiration device according to 1 above, which is accommodated in the accommodating portion.
3. 2. The heating and transpiration apparatus according to 1, wherein the housing part is divided into at least two parts, and at least one of the active ingredients and the organic foaming agent are housed in the housing part so as not to contact each other.

  In the heating and transpiration device of the present invention, at least one of the active ingredients and the organic foaming agent are housed separately in the housing portion so as not to be in direct contact with each other, so that reaction and decomposition between them are suppressed. be able to. Therefore, it is possible to provide a heating transpiration device that increases the degree of freedom in selecting the type of the transpiration agent and is excellent in stability before use.

It is sectional drawing for demonstrating one Embodiment of the structure of the heating transpiration apparatus of this invention. It is sectional drawing for demonstrating the structure of the conventional heating transpiration apparatus. It is a figure for demonstrating another embodiment of the structure of the heating transpiration apparatus of this invention, (a) is sectional drawing, (b) is a top view. It is sectional drawing for demonstrating another embodiment of the structure of the heating transpiration apparatus of this invention. It is sectional drawing for demonstrating another embodiment of the structure of the heating transpiration apparatus of this invention, (a) is sectional drawing, (b) is a top view. It is sectional drawing for demonstrating another embodiment of the structure of the heating transpiration apparatus of this invention, (a) is sectional drawing, (b) is a top view. It is sectional drawing for demonstrating another embodiment of the structure of the heating transpiration apparatus of this invention, (a) is sectional drawing, (b) is a top view.

  Hereinafter, the present invention will be described in more detail.

  The heating and transpiration device of the present invention includes a storage unit that accommodates a heating and transpiration agent containing at least one active ingredient and an organic foaming agent, and the heating and evaporation agent is heated to evaporate the active ingredient. In the transpiration apparatus, at least one of the active ingredients and the organic foaming agent are housed separately in the housing portion so as not to contact each other. The means for isolating is not particularly limited as long as at least one of the active ingredients and the organic foaming agent do not come into contact with each other. Hereinafter, preferred embodiments of the present invention will be described with reference to the drawings. .

FIG. 1 is a cross-sectional view for explaining an embodiment of the structure of the heat evaporation apparatus of the present invention.
The heating and transpiration apparatus of the present invention in FIG. 1 has substantially the same structure as the conventional heating and transpiration apparatus shown in FIG. 2, and description thereof is omitted. In the heating and transpiration apparatus of the present invention in FIG. 1, at least one of active ingredients and an organic foaming agent are enclosed in a bag or capsule B as compared with the conventional heating and transpiration apparatus shown in FIG. 2. The difference is that at least one of the active ingredients and the organic blowing agent are not in direct contact with each other.

  Examples of the material used for the bag or the capsule B include a resin that melts by the reaction heat generated from the hydrothermal exothermic agent 28. Examples of the resin include polyolefins such as low density polyethylene, high density polyethylene and polypropylene, polyesters such as polyethylene terephthalate, and ethylene-vinyl acetate copolymers. In addition, the type and size of the bag or capsule B can be appropriately selected depending on the type, volume and size of the active ingredient or the organic foaming agent, and can be formed by a known method.

  In addition to the above, in the present invention, at least one of the active ingredients and the organic foaming agent may be clathrated with the clathrate compound so that they do not directly contact each other. Although it does not restrict | limit especially as an inclusion compound, A cyclic oligosaccharide is mentioned, For example, there exist cyclodextrins like (alpha) -cyclodextrin, (beta) -cyclodextrin, (gamma) -cyclodextrin. Conventionally known means can be used for the inclusion method. For example, in the case of inclusion of a fragrance, there is a method in which the fragrance is gradually added and stirred while stirring the slurry or aqueous solution of the inclusion compound.

  In the above aspect, at least one of the active ingredients and any one of the organic foaming agents are enclosed in a bag or capsule B, or are clathrated with an inclusion compound, so that at least one of the active ingredients is included. Although one and the organic foaming agent maintain a state where they are not in direct contact with each other, the positional relationship between them and the form of arrangement for maintaining a state where they are not in direct contact with each other in the accommodating portion are not particularly limited. Absent. Hereinafter, an example will be described.

For example, as shown in FIG. 1, at least one of the active ingredients is enclosed in a bag, and the bag is embedded in an organic foaming agent accommodated in the accommodating portion 30. Or the form by which this bag body is arrange | positioned in the state mounted on the upper part of an organic foaming agent, without burying in an organic foaming agent can also be illustrated.
Furthermore, for example, in the accommodating part 30 which accommodated the organic foaming agent, this bag body is suspended from the cover member 25 etc. by arbitrary methods, and this bag body and the organic foaming agent maintain a non-contact state It can also be. That is, depending on the type of the active ingredient or the organic foaming agent, even if the active ingredient is sealed in the bag, the organic foaming agent and the bag still come into contact with each other, so that the active ingredient and the organic foaming agent react with each other or decompose. This is because it is effective to bring the bag and the organic foaming agent into a non-contact state when there is a risk of the occurrence of water. The method for bringing the bag and the organic foaming agent into a non-contact state includes any method, and is not limited to the above method.

  Or, for example, when at least one of the active ingredients is enclosed in a bag, the outer periphery of the bag is organically surrounded so that the bag is an inner layer and at least one organic foaming agent is surrounded as an outer layer of the bag. A form in which the heating transpiration agent formed so as to surround the foaming agent is used as a single body, and the single body or a collection of the single body is housed in the housing portion 30 is also included. By adopting such a configuration, it is possible to maintain a state in which the two are not in direct contact with each other. The bag may be a capsule B or an inclusion compound. In the case of this form, at the time of use, for example, the reaction heat generated from the hydrothermal exothermic agent 28 is transferred to the bag through the organic foaming agent surrounding the bag, and as a result, the resin of the bag melts. When the two come into contact with each other, the active ingredient is volatilized together with the organic foaming agent.

  As described above, various forms have been described taking the bag as an example. However, what is encapsulated or enclosed in at least one of the active ingredients is not limited to the bag, and may be encapsulated in the capsule B. It may be included by an inclusion compound. Furthermore, although the case where what is enclosed in the bag is at least one active ingredient has been described, what is enclosed in the bag may be an organic foaming agent, that is, of the active ingredients The positional relationship between at least one and the organic blowing agent may be reversed.

As described above, at least one of the active ingredients and any one of the organic foaming agents are encapsulated in a bag body or a capsule, or are encapsulated by an inclusion compound. According to the form accommodated in the accommodating part so as not to come into contact, when the vapor pressure of the active ingredient is high, for example, when a perfume is specified, the active ingredient is prevented from volatilizing before use of the heating transpiration device. can do.
Moreover, according to these forms, for example, at least one of the active ingredients and the organic foaming agent do not come into contact with each other during storage or transportation before use of the heat transpiration device, and the reaction between the two And decomposition are suppressed, and the degree of freedom in selecting the type of heat transpiration agent is increased. In addition, the stability before use is also excellent.

  The active ingredient used in the present invention may be appropriately employed according to the use of the heat transpiration agent.For example, when the active ingredient is an insecticide, natural pyrethrin, pyrethrin, bifenthrin, allethrin, phthalthrin, resmethrin, Pyrethroid compounds such as flamethrin, permethrin, phenothrin, ciphenothrin, praretrin, transfluthrin, metofluthrin, profluthrin, monfluorothrin, imiprotolin, empentrin, etofenprox; carbamate compounds such as propoxer, carbaryl; fenitrothion, DDV Organic phosphorus compounds; Oxadiazole compounds such as methoxadiazone; Phenylpyrazole compounds such as fipronil; Sulfonamide compounds such as amidoflumet; Dinotefuran Hormonal agents such as neonicotinoids such as imidacloprid, insect juvenile hormone agents such as metoprene and hydroprene, anti-juvenile hormone agents such as plecosene, and molting hormone agents such as ecdysone; fittin tide, peppermint oil, orange oil And essential oils such as cinnamon oil, benzyl alcohol, clove oil, and the like, and one kind can be used alone, or two or more kinds can be used in combination.

  In addition to the above insecticides, for example, insecticides and acaricides such as IBTA, IBTE, quaternary ammonium salts, benzyl salicylate; rotenone, p-menthane-3,8-diol, diethylmethoramide, di-n -Repellents such as butyl succinate and hydroxyanisole; bactericides such as PCMX, IPBC, TBZ, silver nitrate, silver supported zeolite, isopropylmethylphenol, chlorhexidine gluconate, chlorhexidine gluconate, chlorhexidine hydrochloride and the like; lauryl methacrylate, geranyl croto Deodorants such as nates and catechins; essential oils such as rose oil, lavender oil and mint oil; and perfumes such as pinene, limonene, linalool, menthol and eugenol.

  Examples of the organic blowing agent used in the present invention include azodicarbonamide, benzenesulfonyl hydrazide, p-toluenesulfonyl hydrazide, p, p′-oxybis (benzenesulfonyl hydrazide), dinitrosopentanemethylenetetrazine, N, N. '-Dinitroso-N, N'-dimethylterephthalamide, trihydrazinotriazine, azobisisobutyronitrile, 4,4'-azobiscyanovaleric acid, t-butylazoformamide, 2,4-bis- ( Azosulfonyl) toluene, 2,2′-azobisisobutyramide, methyl-2,2′-azobisisobutyrate, 2- (carbamoylazo) isobutyronitrile, 1,1-azobiscyclohexanecarbonitrile Etc. are mentioned, one kind alone or a combination of two or more kinds It can be used.

Examples of other additives that may be added as needed include binders and solvents used for granulation, and examples of binders include celluloses such as carboxymethyl cellulose, hydroxymethyl cellulose, and hydroxypropyl methyl cellulose; starch And starch-based starch and other natural polymer compounds such as gum arabic; synthetic polymer compounds such as polyvinyl alcohol and polyvinylpyrrolidone, and the like can be used alone or in combination of two or more.
Examples of the solvent include alcohols such as water, ethanol, propanol and benzyl alcohol, paraffins such as liquid paraffin and n-paraffin, ethers such as butyl diglycol, isopropyl myristate, diethyl phthalate and benzyl salicylate. Examples thereof include polyhydric alcohols such as esters, glycerin, and dipropylene glycol, N-methylpyrrolidone, and propylene carbonate. These can be used alone or in combination of two or more.
Moreover, a well-known disintegrating agent, a rust preventive agent, a stabilizer, etc. can also be used.

  In the present invention, at least one of the active ingredients and the organic foaming agent are accommodated in the accommodating portion 30 so as not to contact each other, but the combination of the active ingredient and the organic foaming agent is a heating transpiration agent. In consideration of the application, atmospheric conditions assumed at the time of storage, various conditions assumed at the time of transportation, etc., it may be appropriately determined so that reaction and decomposition between them can be suppressed.

  In addition, the heat transpiration agent said by this invention refers to the whole of the active ingredient, the organic foaming agent, and the other additive added as needed, ie, the whole component accommodated in the accommodating part 30, The component evaporated by heating It can include things other than.

FIG. 3 is a view for explaining another embodiment of the structure of the heating and transpiration apparatus of the present invention, in which (a) is a sectional view and (b) is a plan view. FIG. 3B is a schematic view showing only the outer container 22 and the accommodating portion 30.
In the heating and transpiration apparatus of the present invention in FIG. 3, the accommodating part 30 is divided into two accommodating parts by the separating member 12 as compared with the conventional heating and transpiration apparatus shown in FIG. 2, and at least one of the active ingredients and the organic foaming agent. Are different from each other in that they are not in contact with each other. Further, as shown in FIG. 3B, when the storage portion 30 is viewed from above, the storage portion 30 is divided into two storage portions, a left chamber L and a right chamber R, by the separating member 12. The left ventricle L and the right ventricle R contain at least one of active ingredients and an organic foaming agent, respectively.
According to this embodiment, for example, during storage or transportation before use of the heating transpiration device, at least one of the active ingredients and the organic foaming agent do not contact each other, and reaction and inhibition between them are prevented. This increases the degree of freedom in selecting the type of heat transpiration agent. In addition, the stability before use is also excellent.

  Moreover, since the accommodating part 30 is divided into two accommodating parts of the left ventricle L and the right ventricle R as shown in FIG. 3 by the separating member 12, the reaction heat between the hydrothermal exothermic agent 28 and the water W is reduced to the left. Both the room L and the right room R can be transmitted almost equally. Therefore, for example, even when the active ingredient of the heating transpiration agent is stored separately in the left ventricle L and the right ventricle R, heat is transmitted almost evenly to each active ingredient, so that variation in the transpiration of the active ingredient is suppressed. can do.

  The isolation member 12 can be a member that melts by heating or a member that does not melt by heating. When the isolation member 12 is a member that is not melted by heating, the shape and structure of the isolation member 12 with respect to the heat of reaction between the hydrothermal exothermic agent 28 and the water W is the same as that of the partition member 24 of the prior art heating transpiration device of FIG. It can select suitably from the member which can be maintained.

  When the separating member 12 is a member that does not melt by heating, when using the heating and transpiration device of the present invention, as described above, the hydrothermal exothermic agent 28 reacts with the water W, and by the reaction heat, the left chamber L and At least one of the active ingredients and the gas generated by the thermal decomposition of the organic foaming agent evaporate from the right ventricle R, and are combined together at the ventilation hole portion of the hot melt film 26 and efficiently discharged to the outside. At this time, a gas generated by thermal decomposition of the organic foaming agent plays a role as a carrier of the active ingredient.

  When the separating member 12 is a member that melts by heating, for example, a film that melts by heating, the hydrothermal exothermic agent 28 reacts with the water W and reacts as described above when using the heat evaporation apparatus of the present invention. The film melted by the heating is melted by heat, and at least one of the active ingredients contained in the left chamber L and the right chamber R and the organic foaming agent come into contact with each other, and both of them evaporate, and the hot melt film 26 It is discharged to the outside through the ventilation hole. The gas generated by the thermal decomposition of the organic foaming agent serves as a carrier for the active ingredient, and the active ingredient is efficiently released to the outside through the opening of the lid member 25.

  The film that is melted by heating is not particularly limited as long as it is a film that melts by the reaction heat generated from the hydrothermal exothermic agent 28. Examples thereof include polyester films such as films, ethylene-vinyl acetate copolymer films, and water-soluble films such as polyvinyl alcohol.

FIG. 4 is a cross-sectional view for explaining another embodiment of the structure of the heat evaporation apparatus of the present invention.
In the heating and transpiration device of the present invention in FIG. 4, the lid member 25a is curved in the accommodating portion 30 as compared with the conventional heating and transpiration device shown in FIG. Is different in that at least one active ingredient 31 and the organic foaming agent are maintained so as not to be in direct contact with each other. ing.

  In the case of the above-mentioned form, when the heating transpiration device is used, as described above, the hydrothermal exothermic agent 28 reacts with the water W and is generated by the thermal decomposition of the organic foaming agent accommodated in the accommodating portion 30 by the reaction heat. The gas evaporates, and the gas serves as a carrier for the active ingredient disposed on the upper portion of the lid member 25a at the vent hole portion of the hot melt film 26. Thereby, the active ingredient 31 is efficiently released to the outside.

The lid member 25a is preferably a member (metal or the like) that can efficiently transfer heat to the active ingredient 31 disposed on the lid member 25a. Since the lid member 25a is a member capable of efficiently transferring heat, the lid member 25a is heated by the reaction heat generated by the hydrothermal exothermic agent 28, and the active ingredient 31 disposed on the lid member 25a becomes the lid member. Since it is indirectly heated through 25a, the active ingredient 31 can be efficiently volatilized.
The lid member 25b is simply a lid provided to prevent at least one active ingredient 31 disposed on the lid member 25a from dropping from the heating and transpiration device. When using the heat transpiration apparatus, the lid member 25b may be removed artificially in order to evaporate the active ingredient efficiently, or it may be a member that melts by heating so as to disappear by heat during use.

Although the above embodiment has been described with reference to FIG. 4, the present embodiment is not limited to the embodiment shown in FIG. 4, and at least one active ingredient is disposed on the upper portion of the lid member 25 a, and organic foam is formed in the housing portion 30. As long as the cover member 25b provided for preventing the fall of the at least one active ingredient 31 arranged on the cover member 25a from the heating and transpiration device is provided, the agent is accommodated. Can take.
According to this embodiment, for example, during storage or transportation before use of the heat transpiration apparatus, at least one of the active ingredients and the organic foaming agent do not come into contact with each other, and reaction and decomposition between the two are not caused. This increases the degree of freedom in selecting the type of heat transpiration agent. In addition, the stability before use is also excellent.

FIG. 5 is a cross-sectional view for explaining another embodiment of the structure of the heat evaporation apparatus of the present invention, (a) is a cross-sectional view, and (b) is a plan view. FIG. 5 is a schematic view showing only the outer container 22 and the accommodating portion 30.
In the heating and transpiration device of FIG. 5, when the accommodating portion 30 is viewed from above, the accommodating portion 30 is divided into two accommodating portions of the core portion C and the sheath portion S by the separating member 12, and the core portion C and the sheath portion S are separated. Each contains at least one of the active ingredients and an organic blowing agent. The isolation member 12 can be a member that melts by heating or a member that does not melt by heating, like the isolation member of FIG.
According to this embodiment, for example, during storage or transportation before use of the heat transpiration apparatus, at least one of the active ingredients and the organic foaming agent do not contact each other, and reaction and decomposition between the two are not caused. The degree of freedom in selecting the type of heat transpiration agent is increased. In addition, the stability before use is also excellent.

  When the separating member 12 is a member that is not melted by heating, when the heating and transpiration device of the present invention is used, as described above, the hydrothermal exothermic agent 28 reacts with the water W, and the reaction heat causes the core portion C and At least one of the active ingredients in the sheath portion S and the gas generated by the thermal decomposition of the organic foaming agent evaporate, and the gas generated by the thermal decomposition of the organic foaming agent in the vent hole portion of the hot melt film 26 , Acting as a carrier for the active ingredient. Thereby, the active ingredient is efficiently released to the outside. Or, for example, when at least one of the active ingredients is accommodated in the core part C and the organic foaming agent is accommodated in the sheath part S, a hole is provided in any part of the separating member 12. The gas generated by the thermal decomposition of the organic foaming agent in the sheath portion S evaporates, and the evaporated gas enters the core portion C through the holes, and passes through the hot melt film 26 together with the active components in the core portion C. It is efficiently discharged outside through the pores. Contrary to the above, it is also possible to use the organic foaming agent in the core C and at least one of the active ingredients in the sheath S.

  When the separating member 12 is a member that melts by heating, for example, a film that melts by heating, the hydrothermal exothermic agent 28 reacts with the water W as described above when using the heat evaporation apparatus of the present invention, The film melted by the reaction is melted by the heat of reaction, and at least one of the active ingredients accommodated in the core part C and the sheath part S and the organic foaming agent come into contact with each other, and both of them evaporate. It is discharged to the outside (such as indoors) through the 26 air holes. The gas generated by the thermal decomposition of the organic foaming agent serves as a carrier for the active ingredient, and the active ingredient is efficiently released to the outside through the opening of the lid member 25.

  As the film that melts by heating, the same film that can be used in the heat evaporation apparatus shown in FIG. 3 can be used.

FIG. 6 is a cross-sectional view for explaining another embodiment of the structure of the heating and transpiration apparatus of the present invention, wherein (a) is a cross-sectional view and (b) is a plan view. FIG. 5 is a schematic view showing only the outer container 22 and the accommodating portion 30.
In the heating and transpiration device of FIG. 6, when the accommodating part 30 is viewed from above, the accommodating part 30 is divided into two accommodating parts of the core part C and the sheath part S by the separating member 12, and the core part C and the sheath part S are separated. Each contains at least one of the active ingredients and an organic blowing agent. The isolation member 12 can be a member that melts by heating or a member that does not melt by heating, like the isolation member of FIG. In this embodiment, unlike the embodiment shown in FIG. 5, the bottom surface of the core portion C is in contact with the partition member 24.
According to this embodiment, for example, during storage or transportation before use of the heat transpiration apparatus, at least one of the active ingredients and the organic foaming agent do not contact each other, and reaction and decomposition between the two are not caused. The degree of freedom in selecting the type of heat transpiration agent is increased. In addition, the stability before use is also excellent.

FIG. 7 is a cross-sectional view for explaining another embodiment of the structure of the heat evaporation apparatus of the present invention, (a) is a cross-sectional view, and (b) is a plan view. FIG. 7 is a schematic view showing only the outer container 22 and the accommodating portion 30.
In the heating and transpiration apparatus of FIG. 7, the accommodating portion 30 includes two accommodating portions 30 a and 30 b. The two accommodating portions 30a and 30b can be members that do not melt by heating.
At least one of the active ingredients and the organic foaming agent are accommodated in the accommodating portions 30a and 30b, respectively.
At the time of use of the heat evaporation apparatus of the present invention, as described above, the hydrothermal exothermic agent 28 reacts with the water W, and at least one of the active ingredients respectively accommodated in the accommodating portions 30a and 30b by the reaction heat. The gas generated by the thermal decomposition of the organic foaming agent evaporates, and the gas generated by the thermal decomposition of the organic foaming agent at the vent portion of the hot melt film 26 plays a role as a carrier of the active ingredient. Thereby, the active ingredient is efficiently released to the outside.
According to this embodiment, for example, during storage or transportation before use of the heat transpiration apparatus, at least one of the active ingredients and the organic foaming agent do not contact each other, and reaction and decomposition between the two are not caused. This increases the degree of freedom in selecting the type of heat transpiration agent. In addition, the stability before use is also excellent.

  As mentioned above, although the suitable form of this invention has been demonstrated, referring drawings, in addition to the form shown in FIGS. 3-7, by dividing | segmenting an accommodating part into at least two, at least 1 of the active ingredients There are various forms of separating the organic blowing agent from the one. An example will be described below.

For example, by forming a plurality of separating members in a layered manner in the container of the heat transpiration apparatus and disposing at least one active ingredient or organic foaming agent in the space between the separating member and the separating member, the two are directly connected to each other. It can be kept out of contact. In this case, the arrangement direction of the layer formed by the separating member is not particularly limited, and may be the height direction of the self-heating device (the direction from the lid member of the self-heating device toward the bottom of the device). It may be perpendicular to the vertical direction. That is, as long as the separating member is formed in a multilayer shape, the active ingredient and the organic foaming agent need only be in a non-contact state, and the form is not limited.
When the separating member is a member that melts by heating, for example, a film that melts by heating, when using the heat evaporation apparatus of the present invention, as described above, the hydrothermal exothermic agent reacts with water, and by the reaction heat, The film that melts by heating melts, and at least one of the active ingredients contained between the layers of the separator and the organic foaming agent come into contact with each other, both of which evaporate and are released to the outside through the vents of the hot melt film Is done. The gas generated by the thermal decomposition of the organic foaming agent serves as a carrier for the active ingredient, and the active ingredient is efficiently released to the outside through the opening of the lid member.

  Alternatively, as another form, for example, the accommodating part is divided into three accommodating parts (first accommodating part to third accommodating part) by the separating member, and at least one active ingredient is the first accommodating part, organic In a state where the foaming agent is accommodated in the second accommodating portion, at least one of the active ingredients accommodated in the first accommodating portion by any method at the time of use is moved to the third accommodating portion, A mode in which at least one of the active ingredients is brought into direct contact with the organic foaming agent by moving the organic foaming agent contained in the second housing part to the third housing part is also exemplified.

  Furthermore, as another form, the separating part is not provided in the accommodating part, and at least one of the active ingredients and the organic foaming agent are independently arranged in a non-contact state in the accommodating part, and can be used by any method at the time of use. There is also a method of allowing the active ingredient to evaporate by bringing both into direct contact.

For example, there is a method in which an organic foaming agent is disposed at the bottom of the housing part and at least one of the active ingredients is adhered to the side wall of the housing part by an arbitrary method so as not to contact the organic foaming agent. . As a means for adhering at least one active ingredient to the side surface of the housing portion, for example, an adhesive that melts by heat is preferably used. By using an adhesive that melts by heat, the heat generated when using the heat transpiration device melts the adhesive, and the active ingredient that has adhered to the side surface of the container moves to the bottom of the container by gravity. The active ingredient can be evaporated by direct contact with the organic foaming agent.
Moreover, the method which makes at least 1 active ingredient and an organic foaming agent a non-contact state by coating at least 1 of the active ingredients with the member fuse | melted by heating, for example is also mentioned. In this case, at least one active ingredient and the organic foaming agent can be in direct contact with each other by the melting of the coating by the heat generated when the heating transpiration apparatus is used, and the active ingredient transpires together with the organic foaming agent.

In addition, the heat evaporation apparatus of this invention divides | segments at least 1 of an active ingredient and an organic foaming agent by a partition member etc., even if it has any of the form shown in FIGS. 3-7, and various other forms. Therefore, the respective dosage forms accommodated separately can be in the same form or in different forms. For example, in the case where at least one of the active ingredients divided by the partitioning member and the like and the organic foaming agent are in the same form that is granular, or when one is granular and the other is liquid The dosage form of at least one of the active ingredients or the organic foaming agent can be variously selected, as in the case where one is granular and the other is a different form such as gel, paste or liquid. it can.
Furthermore, at least one of the active ingredients or the organic foaming agent is encapsulated in a bag or capsule that can be used in the above-described heating and transpiration device in consideration of its stability and transpiration by heating, It can also be accommodated in the accommodating portion.

  Moreover, in order for the organic foaming agent to come into contact with at least one of the active ingredients in the form of the above-described heat transpiration device, the separation member is not limited to being thermally melted. By removing, destroying all or part of the isolation member, or moving or shifting the isolation member, it is possible to bring the active ingredient into contact with at least one of the active ingredients and evaporate the active ingredient. .

  The heating and transpiration device of the present invention is not limited to the form of the self-heating device 21 as described above. For example, instead of a heating system based on a reaction between a hydrothermal agent and water, a heating wire such as a nichrome wire, Electric heating system using flat heaters, ring heaters, heaters using semiconductors, etc .; Mixing iron powder and oxidizing agent such as ammonium chlorate. A mixture of iron and potassium sulfate, iron sulfate, metal chloride, iron sulfide, etc. is contacted with water or oxygen, a metal having a higher ionization tendency than iron and a metal halide having a lower ionization tendency than iron Heat is generated by an oxidation reaction such as bringing a mixture of water into contact with water, bringing a mixture of metal and bisulfate into contact with water, or adding water to a mixture of aluminum and alkali metal nitrate. System; it may be used system and the like generate heat by utilizing an oxidation reaction of the mixture of the metal sulfide is contacted with oxygen in sodium sulfate and iron carbide.

[Preparation of granular organic foaming agent]
In the blending components shown in Table 1, each component was mixed, granulated, and dried to produce a granular organic foaming agent. The particle diameter per one organic foaming agent is about 3 mm, and the length is about 5 mm.

As the blending components in Table 1, the following were used.
Organic foaming agent: Azodicarbonamide (trade name: Uniform AZ Ultra # 1067-1 (Otsuka Chemical Co., Ltd.))
Binder: pregelatinized starch

Test Example 1 Reaction Evaluation between Organic Foaming Agent and Alkaline Substance <Reference Example 1>
10 g of the produced granular organic foaming agent was weighed into a 50 ml beaker. Then, what sealed 2 g of alkaline substances described in Table 2 in a polyethylene container (SP soy sauce M (fish type) container style) was allowed to stand for 10 minutes on the organic foaming agent in the beaker. Table 2 shows the state of the organic foaming agent after starting to stand.

<Reference Example 2>
Next, Reference Example 1 was repeated except that 2 g of each of the alkaline substances listed in Table 2 was added uniformly on the organic foaming agent without being enclosed in a polyethylene container. Table 2 shows the state of the organic foaming agent after the addition of the organic foaming agent.

Test Example 2 Evaluation of Influence of Alkaline Substance on Smoke of Organic Foaming Agent In Reference Example 2 of Test Example 1 above, when 0.1% ammonia water was used as the alkaline substance, the ammonia water was put into a polyethylene container. Even when it was not encapsulated and added uniformly to the organic foaming agent, the organic foaming agent did not collapse. Therefore, by using a self-heating device to smoke the organic foaming agent in contact with 0.1% ammonia water, the influence of 0.1% ammonia water on the smoke generation of the organic foaming agent was investigated.

[Production of self-heating device]
The self-heating device was provided with a bottomed cylindrical outer container 22 having a diameter of 53 mm, a height of 63 mm, and a depth of 40 mm as shown in FIG. The outer container 22 had a plurality of water holes at the bottom, and the water holes were closed with a non-woven sheet 23 having water permeability. Further, the inside of the outer container 22 was partitioned into two spaces by a partition member 24. The partition member 24 is cylindrical and has a substantially hollow hemispherical bottom, and its side wall is arranged concentrically with the peripheral wall of the outer container 22.
The hydrothermal substance 28 was filled in the space formed by the peripheral wall of the outer container 22, the partition member 24 and the nonwoven fabric sheet 23. In addition, the upper open surface of the outer container 22 is covered with a lid member 25 in which seven openings of 0.8 cm ² are formed in a region corresponding to the upper open surface of the partition member 24. A self-heating device was produced by closing the film with a hot-melt film 26 having a vent hole.

[Evaluation of smoke start time]
<Reference Example 3>
After uniformly adding 0.1% aqueous ammonia to the organic foaming agent, the organic foaming agent that was allowed to stand at 25 ° C. for 3 days and air-dried was accommodated in the accommodating portion 30 of the self-heating device, and the self-heating device was Heating was started by immersing in a container 29 containing 22 mL of water W. As a result, the time from the start of heating to the start of smoke generation was measured and found to be 83 seconds. The results are shown in Table 3.
<Reference Example 4>
On the other hand, Reference Example 3 was repeated, except that 2 g of 0.1% aqueous ammonia was sealed in a polyethylene container. When the time from the start of heating to the start of smoke generation was measured, it was 21 seconds. The results are shown in Table 3.

  In Reference Example 4 in which ammonia water was sealed in a polyethylene container, the time from the start of heating to the start of smoke generation was 21 seconds, which was appropriate as the smoke generation start time. On the other hand, in Reference Example 3 in which ammonia water was added to the organic foaming agent, the time from the start of heating to the start of smoke generation was 83 seconds, which was significantly longer than that of Reference Example 4. From the above results, it was found that the influence of the alkaline substance on the organic foaming agent can be suppressed by enclosing the alkaline substance in a polyethylene container and not contacting the organic foaming agent.

Test Example 3 Stability Evaluation of Organic Foaming Agent and Fragrance <Example 1>
The organic foaming agent 5g produced above was accommodated in the accommodating portion 30 of the self-heating device. Then, 50 μl of D-limonene as a fragrance was sealed in a 3 cm × 3 cm bag-like PVA film (Hi-Selon C-200AX, manufactured by Nippon Gosei Kagaku Co., Ltd.) and allowed to stand on the granular organic foaming agent. Then, the self-heating device was sealed and stored for 2 weeks in an environment of room temperature of 40 degrees. About the self-heating device after storage for 2 weeks, heating was started by immersing it in a container 29 containing 22 mL of water W in a bathroom (2-tatami space). After a while from the start of heating, the PVA film melted and the encapsulated fragrance contacted the organic foaming agent. The scent intensity 1 minute after the start of smoke generation was evaluated as follows. This test was performed twice.

[Evaluation]
The evaluation was performed according to the following criteria, with 6 expert panelists as evaluators.
4 points: Scented well 3 points: Scented 2 points: Slightly unscented 1 point: Not scented at all The average score of evaluation of 6 professional panelists in total 2 times is shown in Table 4 below .

<Comparative Example 1>
In Example 1, the perfume D-limonene was not encapsulated in a 3 cm × 3 cm bag-shaped PVA film, but dropped directly onto a granular organic foaming agent to form a 3 cm × 3 cm bag of empty PVA Example 1 was repeated except that the film was allowed to stand on the granular organic foaming agent. Table 4 below shows the average score of the evaluation of six professional panelists.

  As can be seen from the results in Table 4, the influence of the organic foaming agent on the fragrance can be suppressed by enclosing the fragrance in a polyethylene container and not contacting the organic foaming agent. It was found that the fragrance could be volatilized

12 Separation member 21 Self-heating device 22 Outer container 23 Non-woven fabric sheet 24 Partition member 25, 25a, 25b Lid member 26 Heat-melt film 27 Heat evaporating agent 28 Hydrothermal exothermic agent 30, 30a, 30b Container 31 Active ingredient B Bag or capsule L Left ventricle R Right ventricle C Core part S Sheath part W Water

Claims (3)

A heating transpiration device comprising a storage unit for containing a heating transpiration agent containing at least one active ingredient and an organic foaming agent, wherein the heating transpiration agent is heated to volatilize the active ingredient,
A heating and transpiration apparatus in which at least one of the active ingredients and the organic foaming agent are housed separately in the housing portion so as not to contact each other.   At least one of the active ingredients and any one of the organic foaming agents are sealed in a bag or capsule, or are included by an inclusion compound so that they do not contact each other. The heat evaporation apparatus of Claim 1 accommodated in the said accommodating part.   2. The heat transpiration apparatus according to claim 1, wherein the housing part is divided into at least two parts, and at least one of the active ingredients and the organic foaming agent are housed in the housing part so as not to contact each other. .

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