JP5833902B2 - Heating transpiration device - Google Patents

Description

  The present invention relates to a heating transpiration device, and more particularly to a hydrothermal exothermic heating transpiration device capable of efficiently evaporating a medicine.

2. Description of the Related Art Conventionally, in order to control pests existing indoors or in warehouses, a heat transpiration apparatus capable of reaching a drug every corner has been used.
For example, a water heating exothermic type heat transpiration device is known in which the water container has good sealing properties and has a simple structure (see Patent Document 1).

  In the heating and transpiration device described in Patent Document 1, the self-heating container has an upper wall, a side wall, and a bottom wall, the water container is disposed on the upper wall side, and the hydropyrogenic substance is disposed on the bottom wall side. At least one of the bottom walls is provided with a discharge hole for discharging the steam containing the active ingredient into the outer container, and the outer container is used to evaporate the steam containing the active ingredient discharged from the self-heating container to the outside. A transpiration hole is provided.

  Further, a heat transpiration apparatus is known which has an excellent bumping prevention effect and can efficiently evaporate an active ingredient (see Patent Document 2).

  The heating and evaporation apparatus described in Patent Document 2 is used in the form of a self-heating device 21 shown as a schematic cross-sectional view as shown in FIG. 6, and the self-heating device 21 includes a bottomed cylindrical outer container 22. The hydrothermal exothermic 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, and the inside of the partition member 24 is an active ingredient, a foaming agent that thermally decomposes to generate gas, A heat transpiration agent 27 comprising a foaming aid and other additives 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 the hot melt film 26.

  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 transpiration agent 27 is heated by the reaction heat to evaporate the active ingredient, and the hot melt film 26 is dissolved and released to the outside (such as indoors). 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 transpiration active ingredient, the transpiration active ingredient is a lid member from a relatively early stage of transpiration. It is efficiently discharged to the outside through the 25 openings.

JP 2001-334144 A JP 2005-120028 A

  Although a chemical | drug | medicine can be vaporized by using the heat | fever evaporation apparatus like the said prior art, the thermal decomposition of a chemical | medical agent occurs. There is a demand for a heat transpiration apparatus that suppresses thermal decomposition of a drug, transpirations more efficiently, and can sufficiently diffuse into a use space.

  Therefore, an object of the present invention is to provide a heating and transpiration device capable of suppressing thermal decomposition of a chemical for heat evaporation and efficiently evaporating the chemical in a use space.

The above object of the present invention is achieved by the following configurations.
(1) A heat generating device and a heat melting container containing a drug that is liquefied and evaporated by heating are provided. The heat generating device is provided with a drug containing portion formed of a recess on the upper surface of the heat generating device. A heat melting container is housed, and a hydrothermal exothermic agent that generates heat and generates water vapor when water is added is contained inside the heat generating device, and a medicine that has become liquid by heating on the side of the medicine housing part However, a plurality of holes through which the water vapor is ejected along the liquid surface at a position higher than the liquid level of the liquid drug in a state where the liquid melt flows out of the heat melting container and is accumulated in the drug storage unit. A heating and transpiration device which is provided.
(2) The hot-melt container includes one or more flat portions, and when the flat portion is one, the flat portion is formed. When the flat portions are plural, the flat portion having the largest area is formed. The heating transpiration apparatus according to (1) above, wherein the entire surface of the concave portion is brought into contact with the bottom surface of the concave portion.
(3) A heat generating device and a heat melting container containing a drug that is liquefied and evaporated by heating are provided. The heat generating device is provided with a drug storing portion including a recess on the upper surface of the heat generating device. A heat melting container is housed, and a hydrothermal exothermic agent that generates heat and generates water vapor when water is added is contained inside the heat generating device, and a medicine that has become liquid by heating on the side of the medicine housing part A plurality of holes through which the water vapor is ejected along the liquid level are provided at positions above the liquid level of the liquid drug in a state where the liquid flows out from the heat melting container melted by heating and accumulates in the drug container. The heating exothermic device is reacted with water to generate heat and water vapor, the heat melting vessel is melted by the heat, and the chemical is liquefied to form the heat melting vessel. Spill from The liquid was stored in the medicine container and evaporated, and the water vapor was ejected from the plurality of holes along the liquid surface of the liquid medicine stored in the medicine container, and the transpiration was caused by the rising air flow generated by the ejected water vapor. A method for heating and evaporating a drug, characterized by diffusing the drug.

According to the present invention, the heated water vapor generated by the reaction between the hydrothermal exothermic agent and water is ejected from the plurality of holes, liquefied by heating, and moves along the liquid level of the liquid drug accumulated in the drug container. As a result, a strong ascending air current of water vapor is generated in the medicine container, and a heat convection air current that encloses the surrounding air is generated. These air currents work as carriers, and can improve the diffusion rate of the evaporated drug (active ingredient).
In addition, since the evaporated drug is diffused by the water vapor stream, thermal decomposition of the drug is suppressed, and the drug can be efficiently evaporated and diffused.
And since an organic foaming agent is not used, the gas etc. derived from an organic foaming agent do not spread | diffuse, and indoor pollution, the death of a foliage plant, etc. can be prevented.

It is a perspective view of the heating transpiration apparatus which concerns on embodiment of this invention. It is sectional drawing for demonstrating the structure of the heating transpiration apparatus which concerns on embodiment of this invention. (A) is a perspective view of the heat melting container which accommodated the chemical | medical agent, (b) is the sectional drawing. It is sectional drawing which shows the use condition of the heating transpiration apparatus which concerns on embodiment of this invention. It is a schematic diagram which shows the structure of the collection apparatus used in the Example. It is a cross-sectional schematic for demonstrating the structure of the heating transpiration apparatus of a prior art.

  Hereinafter, embodiments of the heating and transpiration apparatus of the present invention will be described in detail with reference to the drawings.

  FIG. 1 is a perspective view of a heating and transpiration apparatus according to an embodiment of the present invention, and FIG. 2 is a sectional view thereof. FIG. 3A is a perspective view of a heat melting container containing a medicine, and FIG. 3B is a cross-sectional view thereof. FIG. 4 is a cross-sectional view showing a usage state of the heat transpiration apparatus according to the embodiment of the present invention.

  The heating and transpiration device 1 of the present invention is a water heating type transpiration device, and is composed of a bottomed cylindrical container 11 and a medicine container 12 having a recess provided on the upper surface of the container 11. 2, a hot melting container 14 containing a drug 15 is stored in the drug storage unit 12. A hydrothermal exothermic agent 4 is housed inside the heat generating device 2, and the bottom of the heat generating device 2 is closed by a bottom plate 5 having a plurality of water passage portions (water passage holes 13). It is blocked by a member having water permeability, for example, a nonwoven fabric sheet 6. Moreover, the leg part 7 is provided in the bottom part of the heat generating apparatus 2, and the clearance gap is formed under the bottom board 5, and it is comprised so that water can flow into the bottom part of the heating transpiration apparatus 1. FIG. The heat generating means using the hydrothermal exothermic agent 4 causes water to enter from the water passing portion and contact with the hydrothermal exothermic agent 4 when the heating transpiration apparatus 1 is used to generate heat, and this heat is stored in the medicine storage section 12. Conducted to the heat melting vessel 14 formed.

The heat generating device 2 is not particularly limited as long as it has heat resistance with respect to the heat generation temperature of the hydrothermal exothermic agent 4 housed in the heat generating device 2. For example, the heat generating device 2 may be a heat resistant plastic container, a paper container, It is made of a metal container, a ceramic container, a glass container or the like. If the container 11 which is a structural member of the heat generating device 2 is appropriately determined so as to have a size capable of storing a sufficient amount of the hydrothermal exothermic agent to sufficiently spread the medicine in the space where the heating and transpiration device 1 is used. Good. Although the size of the preferable apparatus used for the room per 4.5-8 tatami is described below, this invention is not limited to the following sizes, The size and volume of a container are set according to application space on the basis of this. Increase or decrease. When used in a 4.5-8 tatami room, the diameter of the container 11 is preferably 5 cm to 10 cm. The height of the container 11 is preferably 3 to 8 cm. The volume of the container 11 is preferably 100 to 480 cm ³ . By setting it as the above range, it is possible to obtain a heat generation temperature and a heat generation time sufficient to evaporate and diffuse the chemical by the water vapor generated by the heat of reaction between the hydrothermal exothermic agent and water, and the generation of water vapor. Excellent operability.

The medicine container 12 is provided on the upper surface of the heat generating device 2 and is a substantially cylindrical concave portion that is recessed from the upper surface of the container 11 of the heat generating device 2 toward the inside. When the heat generating device 2 is cylindrical, the medicine container 12 is preferably concentric cylindrical. The inner diameter of the medicine container 12 is preferably 20 to 80 mm. And it is preferable that the depth of the chemical | medical agent storage part 12 shall be 5-20 mm. By setting it as the said range, the chemical | medical agent quantity which can fully permeate | circulate use space can be accommodated in the chemical | medical agent storage part 12, and the effect of this invention can fully be acquired.
Moreover, although it is preferable to form the bottom face of the chemical | medical agent storage part 12 as a flat part, a recessed part or a convex part can be provided as needed.

  A plurality of holes 8 a are formed on the side surface that defines the medicine storage portion 12 so that the inside and outside of the heat generating device 2 communicate with each other. The hole 8a vigorously ejects water vapor generated by the reaction heat of the hydrothermal exothermic agent and water from the inside of the heat generating device 2 to the outside, thereby generating a water vapor flow and a heat convection air flow in the drug storage unit 12. It works to let you.

  The plurality of holes 8 a are formed in the liquid medicine 15 ′ when the hot melt container 14 is melted by heating and when the medicine (liquid medicine) 15 ′ liquefied by heating flows out and accumulates in the medicine container 12. It is provided to be more than the surface. Note that “above” means that the upper edge of the hole 8a is substantially the same as or higher than the liquid surface of the liquid medicine 15 '. The position of the hole 8a is preferably in the vicinity of the liquid surface of the liquid medicine 15 ′ accumulated in the medicine container 12, and specifically, the lower edge of the hole 8a is about 1 mm from the liquid surface of the liquid medicine 15 ′. More preferably, it is provided so as to be positioned above. By providing the hole 8a in the vicinity of the liquid surface of the liquid medicine 15 ', water vapor ejected from the hole 8a of the heat generating device 2 by heating can be moved along the liquid surface of the liquid medicine 15'. Note that the liquid melting agent 15 ′ flows out and the liquid melting agent 15 ′ flows out at the same time as or after the ejection of water vapor generated by the reaction heat between the hydrothermal exothermic agent and water. Even if the position of 8a is almost the same, the liquid medicine 15 'is not pushed out by water vapor, and the liquid medicine 15' does not enter the hole 8a due to its surface tension.

  The diameter of the hole 8a is preferably 0.1 to 3 mm, and more preferably 0.4 to 2 mm. Within the above range, water vapor suitable for transpiration and diffusion of the drug can be ejected. When the diameter of the hole 8a is smaller than 0.1 mm, a sufficient amount of water vapor for transpiration may not be ejected. When the diameter is larger than 3 mm, the momentum of the ejected water vapor is weakened, so that the diffusion efficiency is deteriorated. There is. In addition, when exothermic granules are used as the hydrothermal exothermic agent 4 in the heat generating device 2, if the diameter of the holes 8a is less than 0.1 mm, the exothermic granules may be clogged with holes and a desired effect may not be obtained. In addition, if the diameter of the hole is larger than 3 mm, the exothermic granule may jump out of the hole.

  It is more preferable to provide 3 to 20 holes 8a, and it is preferable to provide the holes 8a at equal intervals on the side surface that defines the medicine container 12. If the diameters of the holes 8a provided at equal intervals on the side surface of the medicine storage section 12 are three or more, it is possible to generate a suitable ascending stream of water vapor in the medicine storage section 12, and efficiently evaporate the medicine. Can be diffused.

  In the present invention, the total area “a” of the holes 8 a is preferably set within a certain range with respect to the circumferential length L of the side surface defining the medicine container 12. The ratio L / a of the hole 8a to the circumferential distance is preferably 2 to 600, more preferably 10 to 200. Within this range, the drug can be efficiently evaporated and diffused.

  The hydrothermal exothermic agent 4 filled in the container 11 is a substance that self-heats by reaction with water and generates water vapor, and an exothermic temperature of 100 to 400 ° C., preferably an exothermic temperature of 300 to 400 ° C. within 10 minutes. Can be used. For example, calcium oxide (quick lime), magnesium chloride, aluminum chloride, calcium chloride, iron chloride, alum, zinc sulfate, magnesium sulfate, nickel chloride, etc. can be used as the hydrothermal exothermic agent 4 in terms of heat generation efficiency and the amount of water vapor generated. It is preferable to use calcium oxide. From the relationship between an appropriate exothermic temperature and exothermic time, it is preferable that the exothermic exothermic agent 4 is usually filled in the entire container using 40 to 400 g. The water used at this time is suitably 10 to 100 mL.

  As shown in FIGS. 3A and 3B, the thermal melting container 14 includes a lower container 42 and an upper lid 40. The lower container 42 is formed of a thermoplastic resin such as PE (polyethylene), PP (polypropylene), PET (polyethylene terephthalate), etc., and includes a bottom portion 42a, a peripheral wall 42b standing from the outer periphery of the bottom portion 42a and defining an opening, It is comprised with the collar part 42c extended toward the outward from the upper end part of the surrounding wall 42b. The upper lid 40 is formed of a thermoplastic resin such as PE, PP, or PET, and is fixed to the flange portion 42c by a method such as adhesion or thermal welding in a state where the opening of the lower container 42 is covered. In the present invention, the lower container 42 is preferably made of the same material as the upper lid 40 or a material having a lower melting point. With this configuration, if the upper lid 40 having a large area is in contact with the bottom surface of the medicine container 12, the upper lid 40 is directly heated, so that the entire thermal melting container 14 can be rapidly melted. it can.

  The thickness of the lower container 42 is preferably 5 to 1000 μm. The thickness of the upper lid 40 is preferably 5 to 1000 μm. When the thickness of the lower container 42 and the upper lid 40 is within the above range, the heat melting container 14 can be rapidly dissolved by heating at 300 to 400 ° C. Can be stored.

  The chemical | medical agent 15 accommodated in the heat melting container 14 is comprised in the state which does not contain a foaming agent, and will not be specifically limited if the said effect is acquired as said chemical | medical agent.

  In the case of using an insecticide as an active ingredient in a drug, the intended one is used without any particular limitation. Pyrethroid compounds such as praretrin, transfluthrin, metfluthrin, profluthrin, imiprotrine, empentrin, etofenprox; carbamate compounds such as propoxer and carbaryl; organic phosphorus compounds such as fenitrothion and dichlorvos (DDVP); Diazole compounds; phenylpyrazole compounds such as fipronil; sulfonamide compounds such as amidoflumet; neonifurans such as dinotefuran and imidacloprid Tinoids, insect juvenile hormone agents such as metoprene and hydroprene, anti-juvenile hormone agents such as plecosene, and hormone agents such as molting hormone agents such as ecdysone; What combined 1 type, or 2 or more types, such as essential oils, such as alcohol and clove oil, is mentioned.

If necessary, in addition to the above insecticides, insecticides and acaricides such as isobornyl thiocyanoacetate, isobornyl thiocyanoethyl ether, quaternary ammonium salts, benzyl salicylate; rotenone, p-menthane-3, Repellents such as 8-diol, diethylmethoramide, di-n-butylsuccinate, hydroxyanisole; parachlorometaxylenol, 3-iodo-2-propylbutylcarbamate, thiabendazole, isopropylmethylphenol, chlorhexidine gluconate, hydrochloric acid Bactericides such as guanidine fungicides such as chlorhexidine; deodorants such as lauryl methacrylate, geranyl crotonate and catechin; essential oils such as rose oil, lavender oil and mint oil; Etc. It is possible to have.
Furthermore, as long as the invention can be carried out, organic solvents such as carbonate ester, lactate ester, polyvinylpyrrolidone, glycol, alcohol; 1,1′-oxybis [2,3,3,3-tetrachloropropane], sinepiline (trade name) ), Synergists such as piperonyl butoxide may be used.

  In the present invention, the form of the drug 15 is not particularly limited as long as it is liquefied by heating, and may be any form such as a gel, a solid, or a liquid.

  When the heating and transpiration device 1 of the present invention is used, the thermal melting container 14 containing the medicine 15 is installed in the medicine storage part 12 so that the upper lid 40 of the thermal melting container 14 is in contact with the bottom surface of the medicine storage part 12. . And the heat evaporation apparatus 1 is put into the container containing water. Then, water flows in from the water passage hole 13 provided at the bottom of the container 11 through the gap formed by the leg portion 7 of the heat generating device 2 and comes into contact with the hydrothermal exothermic agent 4 to generate reaction heat. The heat melting container 14 containing the medicine 15 is heated from both the lower side (that is, the upper lid side) and the side, the heat melting container 14 is melted and torn, and the liquid medicine 15 ′ that has become liquid by heating from inside is obtained. As shown in FIG. 4, the liquid medicine 15 ′ flows out and accumulates in the medicine container 12. Here, since almost the entire surface of the upper lid 40 of the thermal melting container 14 is in contact with the bottom surface (flat portion) of the medicine container 12, the reaction heat is quickly and uniformly transmitted to the upper lid 40, and the thermal melting container 14 is efficiently melted. Can be made. It is preferable that at least 80% or more, preferably 90% or more, of the flat part having the largest area of the upper lid 40 of the heat melting container 14 is in contact with the bottom surface of the medicine container 12. Since 80% or more of the flat surface is in contact with the bottom surface, even when the upper lid 40 has a higher melting point than the lower container 42, the upper lid 40 is heated first, and therefore, the upper lid 40 can be effectively melted.

  On the other hand, heated and pressurized water vapor is generated in the heat generator 2. Since a plurality of holes 8a communicating the inside and the outside of the heat generating device 2 are formed on the side surface of the medicine container 12, the generated water vapor is ejected from the holes 8a with a strong momentum. Then, the ejected water vapor moves along the liquid surface of the liquid medicine 15 ', and a strong ascending air current is generated where the water vapor collides. Moreover, the air current of water vapor entrains the air above the medicine container, and a heat convection air current is generated. The chemical vaporized by heating moves upward along the water vapor stream and the heat convection air stream, and is released and diffused into an indoor space or the like in which the heat vaporizer 1 is installed (arrow X). Thereby, the transpiration of the drug is promoted and the diffusion is performed efficiently.

  In the present invention, the shape of the heat melting container is arbitrary, and may be, for example, a bag shape, or may be a prismatic sealed container having an elliptical shape or a polygonal shape of a triangle or more in plan view.

  Further, in the present invention, the upper surface of the medicine container may be opened, and a heat-melt film or a wire mesh having a vent hole is provided to prevent a person from being directly struck by the medicine and to prevent the liquid medicine from scattering. Or a metal plate or the like.

  The heat transpiration apparatus of the present invention can be used for the purpose of pest control, further sterilization, deodorization, fragrance and the like.

  EXAMPLES Hereinafter, although an Example demonstrates this invention in more detail, this invention is not limited to an Example.

<Test Example 1>
(Production of heat generator A)
As shown in FIGS. 1 and 2, a heat generating apparatus A provided with a substantially cylindrical drug container having a diameter of 48 mm and a depth of 12 mm on the upper surface of a bottomed cylindrical container having a diameter of 65 mm and a height of 56 mm. Produced. Five holes with a diameter of 0.8 mm were provided at equal intervals on the side surface of the drug storage unit at a position 6 mm from the bottom surface of the drug solution storage unit.
The inside of the heat generating apparatus A was filled with 130 g of calcium oxide as a hydrothermal exothermic agent from the bottom to the side. A gap is formed by a leg portion at the bottom of the container, and a bottom plate having a plurality of water passage portions (water passage holes) is provided. The water passage holes are water-permeable nonwoven fabric sheets (viscose rayon, basis weight: 300 g). / M ² ).

(Preparation of heat generator B)
A heat generator B was produced in the same manner as the heat generator A except that eight holes were provided at regular intervals.

(Preparation of heat generator C)
A heat generating device C was produced in the same manner as the heat generating device A, except that six holes with a diameter of 1.0 mm were provided at regular intervals.

(Preparation of heat generator D)
A heat generator D was produced in the same manner as the heat generator A except that 10 holes were provided at equal intervals.

(Production of heat generator E)
A heat generating device E was produced in the same manner as the heat generating device A except that 10 holes with a diameter of 1.2 mm were provided at an equal interval of 8 mm from the bottom surface of the chemical solution storage unit.

(Production of heat generator x)
A heat generator x was produced in the same manner as the heat generator A except that no holes were provided.

(Preparation of drug sample I)
As the drug, 3600 mg of etofenprox alone was used. This drug was housed in a bottomed cylindrical lower container 42 having a diameter of 43 mm and a height of 6 mm as shown in FIG. 3, and sealed with a sheet-shaped upper lid 40 having a diameter of 43 mm to prepare a drug sample I. The lower container 42 of the heat melting container is made of PE and has a thickness of 80 μm, and the upper lid 40 has a layer structure of PP 20 μm and PE 40 μm.

<Transpiration test method>
The chemical | medical agent sample I was accommodated in the produced said heat generating apparatus AE and the heat generating apparatus x, and the heating transpiration apparatus was produced (Examples 1-5, Comparative Example 1). The heat transpiration apparatus of each Example and Comparative Example was heat transpiration, and the transpiration component was trapped with silica gel using the collection apparatus shown in FIG.
The collection device of FIG. 5 is used for collection so that the heating transpiration device 110 placed in a container containing water is placed on a pedestal 111 and covers almost the entire upper and side portions of the heating transpiration device 110. The funnel 112 is covered, a metal collecting tube 114 filled with silica gel 113 is connected to the collecting funnel 112, and suction is performed from the other end of the collecting tube 114. The collection tube 114 is a cylinder having an inner diameter of 5 cm and a total length of 13 cm, filled with 110 g of silica gel 113, and absorbent cotton (8 × 17 cm size folded in two) 115, 115 of the filled portion of the silica gel 113. The top and bottom are blocked.

In the measurement, first, the heating transpiration device 110 is installed in the collection device, and the transpiration is heated and evaporated from the start of transpiration until the transpiration is completely completed, and the entire transpiration is sucked and adsorbed on the silica gel 113. Thereafter, the collecting funnel 112 and the collecting tube 114 are collected, the silica gel 113 and the absorbent cotton 115 are transferred to a beaker, and the inner surfaces of the collecting funnel 112 and the collecting tube 114 are sufficiently washed with acetone. At this time, all the cleaning liquid is collected. Next, add 1000 mL of acetone so that the silica gel 113 is sufficiently immersed in the beaker, extract with an ultrasonic cleaner for 50 minutes, filter by suction, and add an internal standard substance (di-2-ethylhexyl phthalate) for analysis. A sample was used. The obtained extract was quantitatively analyzed with a gas chromatograph, and the transpiration rate, the residual rate, and the decomposition rate were determined by the following equations. The results are shown in Table 1.
Transpiration rate (%) = (Amount of drug transpiration / Amount of drug before transpiration) × 100
Residual rate (%) = (remaining amount of drug / amount of drug before transpiration) × 100
Decomposition rate (%) = 100- (transpiration rate (%) + residual rate (%))

  As shown in Table 1, it can be seen that the transpiration rate of Examples 1 to 5 in which a plurality of holes are provided on the side surface defining the concave portion of the medicine container is higher than that of Comparative Example 1 in which no holes are provided. It was. Above all, in Example 2, the transpiration rate increased by 30% or more compared with Comparative Example 1, and the effect was remarkable. And while the comparative example 1 has decomposed | disassembled the chemical | medical agent 50% or more, the decomposition rate of Examples 1-5 was low, and it turned out that the chemical | medical agent is transpiration | evaporated efficiently. From the above results, water vapor is ejected from the hole provided in the side surface of the medicine container, and moves along the liquid surface of the liquid medicine and becomes a strong ascending air current. It is probable that the drug evaporated from the air current was diffused.

<Test Example 2>
(Production of heat generator F)
As shown in FIG. 1 and FIG. 2, a heat generating apparatus F having a substantially cylindrical medicine container having a diameter of 60 mm and a depth of 12 mm is provided on the upper surface of a bottomed cylindrical container having a diameter of 74 mm and a height of 58 mm. Produced. Eight holes with a diameter of 0.5 mm were provided at equal intervals on the side surface of the chemical solution storage unit at a position 6 mm from the bottom surface of the chemical solution storage unit.
Inside the heat generating device F, 175 g of calcium oxide as a hydrothermal exothermic agent was filled from the bottom to the side. A gap is formed by a leg portion at the bottom of the container, and a bottom plate having a plurality of water passage portions (water passage holes) is provided. The water passage holes are water-permeable nonwoven fabric sheets (viscose rayon, basis weight: 300 g). / M ² ).

(Preparation of heat generator G)
A heat generating device G was produced in the same manner as the heat generating device F except that the diameter of the hole was 0.6 mm.

(Production of heat generator H)
A heat generator H was produced in the same manner as the heat generator F, except that the hole diameter was 0.8 mm.

(Production of heat generator J)
A heat generator J was produced in the same manner as the heat generator F except that 16 holes with a diameter of 0.8 mm were provided at regular intervals.

(Production of heat generator K)
A heat generating device K was produced in the same manner as the heat generating device F, except that 20 holes with a diameter of 1.0 mm were provided at equal intervals at a position of 6.8 mm from the bottom surface of the chemical solution storage unit.

(Preparation of drug sample II)
As a drug, 5400 mg of etofenprox alone was used. This drug was housed in a bottomed cylindrical lower container 42 having a diameter of 54 mm and a height of 6 mm as shown in FIG. 3 and sealed with a sheet-like upper lid 40 having a diameter of 54 mm to prepare a drug sample II. The lower container 42 of the heat melting container is made of PE and has a thickness of 80 μm, and the upper lid 40 has a layer structure of PP 20 μm and PE 40 μm.

<Transpiration test method>
The said chemical | medical agent specimen II was accommodated in the produced said heat generating apparatuses FK, and the heating transpiration apparatus was produced (Examples 6-10). The heat transpiration apparatus of each Example was heat transpiration in the same manner as in Test Example 1, and the transpiration rate, the residual rate, and the decomposition rate were determined. The results are shown in Table 2.

  In this test example, an apparatus having a size larger than that of the heat transpiration apparatus of Test Example 1 was used. As shown in Table 2, a transpiration rate of 50% or more was obtained by forming a plurality of holes in the side surface defining the concave portion of the medicine container. As a result, the water vapor is ejected from the hole provided in the side surface of the medicine container, moves along the liquid medicine surface, becomes a strong ascending air current, and further generates a heat convection air current. It is thought that the drug is spread on board.

  According to the heating and transpiration apparatus of the present invention, since the drug is evaporated in a short time by the action of the air flow by the heated and pressurized water vapor in the heat generating apparatus, the thermal decomposition of the drug is suppressed, and the drug is made efficient. Can evaporate well. In addition, since the chemical does not contain organic foaming agent, there is no generation of gas derived from organic foaming agent, and it can be used safely in vehicles such as automobiles, airplanes, trains, etc., where there are many metal products and foliage plants. .

DESCRIPTION OF SYMBOLS 1 Heating evaporation device 2 Heat generating device 4 Hydrothermal agent 5 Bottom plate 6 Nonwoven fabric sheet 7 Leg part 8a Hole 11 Container 12 Drug storage part 13 Water flow hole 14 Heat melting container 15 Drug 15 'Liquid medicine 21 Self-heating apparatus 22 Outer container 23 Non-woven fabric sheet 24 Partition member 25 Lid member 26 Heat-melt film 27 Heat transpiration agent 28 Hydrothermal agent 29 Container 40 Upper lid 42 Lower container

Claims (3)

A heat generating device and a heat melting container containing a chemical that is liquefied and evaporated by heating,
While comprising a medicine storage part consisting of a recess on the upper surface of the heat generating device, the heat melting container is stored in the medicine storage part,
Inside the heat generating device, a water-containing exothermic agent that generates heat and steam when water is added is contained,
On the side surface of the medicine container, the medicine that has become liquid by heating flows out of the heat-melting container melted by heating and accumulates in the medicine container, and is positioned above the liquid level of the liquid medicine. A heating and transpiration apparatus comprising a plurality of holes through which the water vapor is ejected along the liquid surface.   The hot-melt container includes one or more flat portions. When there is one flat portion, the flat portion is formed. When there are a plurality of flat portions, the flat portion having the largest area is formed. 2. The heat transpiration apparatus according to claim 1, wherein the entire surface is brought into contact with the bottom surface. A heat melting container containing a heat melting device containing a drug that is liquefied and evaporated by heating, and has a drug storage portion formed of a recess on the upper surface of the heat generating device; In the inside of the heat generating device, a hydrothermal exothermic agent that generates heat and generates water vapor when water is added is stored. A plurality of holes through which the water vapor is ejected along the liquid level are provided at positions above the liquid level of the liquid drug in a state of flowing out of the melted thermal melting container and collecting in the drug container. Using a heat transpiration device,
Reacting the hydrothermal exothermic agent with water to generate heat and water vapor;
With the heat, the heat melting container is melted, and the medicine is liquefied to flow out of the heat melting container and stored in the medicine storage section, and evaporated.
The water vapor is ejected from the plurality of holes along the liquid surface of the liquid medicine accumulated in the medicine storage unit,
A method for heat transpiration of a medicine, characterized in that the transpirated medicine is diffused by an ascending air flow generated by ejected water vapor.

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