Smoking device

Abstract

To provide a smoking device that reduces unpleasant odors caused by gases that are generated by combustion or decomposition of an organic foaming agent during smoking, particularly gases containing ammonia, and that has excellent use feeling.SOLUTION: A smoking device includes a smoking container having three regions of a space region, a smoking agent housing region, and a heat-generating agent housing region. The smoking agent housing region is located above the heat-generating agent housing region, and the space region is located above the smoking agent housing region. The smoking agent housing region houses a smoking agent, and the heat-generating agent housing region houses a heat-generating agent that generates heat through a hydration reaction. A ventilation communication port that communicates to the space region and the heat-generating agent housing region is provided. Steam generated in the heat-generating agent housing region directly flows into the space region through the ventilation communication port.SELECTED DRAWING: Figure 5

Description

[Technical Field]

[0001] The present invention relates to a smoking device and a method for reducing odor during smoking. [Background technology]

[0002] Fumigants containing pesticides or antibacterial and antifungal agents as active ingredients have traditionally been used indoors for pest control and disinfection / anti-fungal purposes. To enhance the transpiration and diffusion of the active ingredients, the formulations contain organic foaming agents such as azodicarbonamide. When used, the organic foaming agent is burned or decomposed, generating gases and smoke particles that quickly transpire and diffuse the active ingredients into the air, ensuring thorough penetration of the active ingredients into every corner of the space, resulting in excellent pest control and disinfection / anti-fungal effects. These fumigants are often heated using a heat-generating agent that generates heat through a hydration reaction, and because the heat generated by this hydration reaction reaches high temperatures (approximately 250-400°C), the fumigants and the containers they are stored in are exposed to high temperatures. For this reason, non-flammable containers are used, and metal cans such as aluminum and tin are commonly used. On the other hand, odors caused by gases (such as ammonia) generated by the thermal decomposition of the organic blowing agent azodicarbonamide, and a burning odor (burnt odor) caused by the use of metal cans as smoking agents or containers for storing them, are sources of discomfort to users. Regarding the burnt odor, in order to prevent this and improve the user experience, techniques have been reported in which mineral substances with a specific oil absorption amount are present in the smoking agent, and in which fragrances are blended into the smoking agent (Patent Document 1, etc.), but at present, no adequate odor suppression measures have even been reported for the odor caused by the combustion or decomposition of organic blowing agents. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] Japanese Patent Application Laid-Open No. 2016-113369 Summary of the Invention [Problem to be solved by the invention]

[0004] The present invention aims to provide a smoking device that reduces the unpleasant odors caused by gases, particularly gases containing ammonia, generated by the combustion or decomposition of organic foaming agents during smoking, and is less irritating and more comfortable to use. [Means for solving the problem]

[0005] As a result of extensive research into solving the above problems, the inventors discovered that by designing a smoking device so that the ammonia-containing gas generated by the combustion or decomposition of an organic foaming agent comes into contact with water vapor generated by the hydration reaction of the exothermic agent before it is released outside the smoking device, it is possible to suppress the ammonia released outside the smoking device and reduce the odor and irritation during smoking, thereby completing the present invention.

[0006] Specifically, the present invention provides the following: 1. A smoking container having three areas: a space area, a fumigant storage area, and a heat generating agent storage area; The fumigation agent storage area is located above the heat generating agent storage area, The spatial area is located above the fumigant storage area, The fumigant storage area stores a fumigant, The heat generating agent storage area stores a heat generating agent that generates heat through a hydration reaction, Furthermore, a ventilation communication port is provided to communicate the spatial region with the heat generating agent containing region, The water vapor generated in the heat generating agent storage area flows directly into the space area through the ventilation communication port. Smoking device. A method for reducing odor during smoking by using the fumigation device described in 2.1. and allowing the water vapor generated by the hydration reaction of the heat generating agent to flow directly from the heat generating agent storage area into the spatial area. [Effects of the Invention]

[0007] The smoking device of the present invention is designed so that the gas generated by the combustion or decomposition of the organic foaming agent, particularly the gas containing ammonia, comes into contact with the water vapor generated by the hydration reaction of the exothermic agent within the smoking container before being released outside the smoking device.This prevents ammonia from being released outside the smoking device, significantly reducing the odor and irritation during smoking, making it a useful smoking device that is easy for users to use. [Brief explanation of the drawings]

[0008] [Figure 1] 1A is a cross-sectional view showing a schematic diagram of the smoking device of the present invention, and FIG. 1B is a diagram showing three regions in the smoking receptacle. [Figure 2] 1A is a schematic diagram showing a first embodiment of the smoking device of the present invention, and FIG. 1B is a perspective view showing the partition member thereof. [Figure 3] 1A is a schematic diagram showing a second embodiment of the smoking device of the present invention, and FIG. 1B is a perspective view showing the partition member thereof. [Figure 4] 1A is a schematic diagram showing a third embodiment of the smoking device of the present invention, and FIG. 1B is a perspective view showing the partition member thereof. [Figure 5] FIG. 1(a) is a schematic diagram showing a fourth embodiment of the smoking device of the present invention, and FIG. 1(b) is a perspective view showing that the smoking container has a recessed portion that functions as an air vent. [Figure 6] 1(a) is a schematic diagram showing a fifth embodiment of the smoking device of the present invention, and FIG. 1(b) is a perspective view showing the partition member thereof. [Figure 7] 10A is a schematic diagram showing a sixth embodiment of the smoking device of the present invention, and FIG. 10B is a perspective view showing the partition member thereof. [Figure 8] 10A is a schematic diagram showing a seventh embodiment of the smoking device of the present invention, and FIG. 10B is a perspective view showing the partition member thereof. [Figure 9] FIG. 10(a) is a schematic diagram showing the eighth embodiment of the smoking device of the present invention, FIG. 10(b) is an oblique view showing that the smoking container has a support portion that supports the partition member, and FIG. 10(c) is an oblique view showing the partition member. [Figure 10]FIG. 10 is a schematic diagram showing the ninth embodiment of the smoking device of the present invention. [Figure 11] FIG. 14 is a schematic diagram showing the tenth embodiment of the smoking device of the present invention. [Figure 12] FIG. 11 is a schematic diagram showing the eleventh embodiment of the smoking device of the present invention. [Figure 13] FIG. 12 is a schematic diagram showing the twelfth embodiment of the smoking device of the present invention. DETAILED DESCRIPTION OF THE INVENTION

[0009] The present invention will now be described in detail. The smoking apparatus of the present invention is equipped with a smoking canister having three regions: a spatial region, a fumigant storage region, and a heat-generating agent storage region. Inside this smoking canister, there is a fumigant storage region above the heat-generating agent storage region, and there is also a spatial region above the fumigant storage region. In other words, the smoking canister has three regions within it, which are, in order from the top, which is the top surface of the smoking canister, the spatial region, the fumigant storage region, and the heat-generating agent storage region. The fumigant storage area refers to an area that stores a fumigant, and the exothermic agent storage area refers to an area that stores an exothermic agent that generates heat through a hydration reaction. On the other hand, the spatial region is a space where the gas generated by the combustion or decomposition of the organic foaming agent contained in the fumigant comes into contact with the water vapor generated by the hydration reaction of the exothermic agent. In the smoking device of the present invention, the gas generated by the combustion or decomposition of the organic foaming agent contained in the fumigant, particularly the gas containing ammonia, comes into contact with the water vapor generated by the hydration reaction of the exothermic agent in the spatial region within the smoking container before being released outside the smoking device, causing the ammonia to dissolve in the water in the water vapor, significantly reducing the amount of ammonia contained in the gas released outside the smoking device, thereby significantly reducing the odor and irritation during smoking. The smoking device of the present invention is provided with a ventilation opening that connects the spatial region and the heat generating agent storage region so that gases, particularly ammonia-containing gases, generated from the fumigant storage region can come into contact with water vapor generated from the heat generating agent storage region before being released outside the smoking device. The ventilation opening allows water vapor generated from the heat generating agent storage region to directly flow into the spatial region and come into contact with gases, particularly ammonia-containing gases, generated from the fumigant storage region. This configuration significantly reduces the amount of ammonia contained in the gas released outside the smoking device, significantly reducing odor and irritation during smoking.

[0010] The smoking device, smoking container, and ventilation opening of the present invention will be described in detail below. <About the smoking device> The smoking device of the present invention is configured to include a smoking receptacle. This smoking receptacle may be made of a conventional metal, or may be a receptacle formed entirely from a water-absorbent material. From the viewpoints of odor suppression, low environmental impact, and ease of disposal, a one-piece molded receptacle formed entirely from a water-absorbent material is preferred as the smoking receptacle of the smoking device of the present invention. Embodiments of the smoking device and smoking container of the present invention will be described with reference to Figs. 1 is a cross-sectional view showing a smoking device 1 of the present invention having three areas within a smoking can 10: a heat generating agent storage area P containing heat generating agent 20 that generates heat through a hydration reaction; a fumigation agent storage area Q containing fumigation agent 30 above heat generating agent storage area P; and a space R above fumigation agent storage area Q, with ventilation opening 60 connecting space R to heat generating agent storage area P. More specifically, smoking can 10 has heat generating agent storage area P containing heat generating agent 20 and fumigation agent storage area Q containing fumigation agent 30 adjacent to each other via partition member 40, and smoking device 1 comprises smoking can 10 within outer container 70 that can hold water W. Furthermore, a lid 50 may be provided on the open top surface of smoking can 10, if necessary. For example, the open top surface of smoking can 10 in FIG. 1 is provided with lid 50, and is covered with lid member 54 having one or more smoke vent holes 52 with a diameter of 0.5 to 10 mm through which the vaporized fumigant 30 contained in the smoking can 10 can escape. Smoke vent holes 52 in lid member 54 may be sealed with a heat-melt film (not shown) in contact with the upper or lower surface of lid member 54. Preferably, lid member 50 can be sealed to smoking can 10 by welding or adhesive. The material of lid member 54 is not limited. If smoking can 10 is made of a conventional metal, lid member 54 may be made of the same metal as smoking can 10 or a different material, but heat-resistant paper is preferred. Furthermore, in the case where smoking receptacle 10 is an integrally molded container made entirely of a water-absorbent material, it is preferable that lid member 54 also be made entirely of a water-absorbent material.

[0011] <About smoking containers> Partition member 40 and ventilation opening 60 in smoking receptacle 10 of the present invention will be described with reference to Figs. 2 to 9 show an embodiment in which smoking canister 10 is an integrally molded container made entirely of a water-absorbent material, and FIGS. 10 to 13 show an embodiment in which smoking canister 10 is made of metal. FIG. 2 is a diagram showing a first embodiment of the smoking container in the smoking apparatus of the present invention. Specifically, FIG. 2(a) is a schematic diagram illustrating the partition member 40 and the air vent hole 60, and FIG. 2(b) is a perspective view showing the partition member 40 in FIG. 2(a). 2(a) is a dish-shaped partition member 40 having a bottom surface and a side wall connected thereto to prevent fumigant 30 from falling into exothermic agent storage area P. Partition member 40 also has a portion of its side edge that does not contact side wall 12 of smoking canister 10, and this portion functions as ventilation opening 60 that connects spatial area R with exothermic agent storage area P. The partition member 40 in FIG. 2(a) has the shape shown in the perspective view of FIG. 2(b), and has a recess that functions as an air communication port 60 in its side wall.

[0012] 3 and 4 are diagrams showing second and third embodiments of the smoking receptacle in the smoking apparatus of the present invention. 3 and 4(a) are schematic diagrams illustrating the partition member 40 and the air communication port 60, and FIGS. 3 and 4(b) are perspective views showing the partition member 40 in FIGS. 3 and 4(a). 3 and 4 is a dish-shaped partition member 40 having a bottom surface and a side wall connected thereto to prevent fumigant 30 from falling into exothermic agent containing area P. In Figure 3, the side wall of partition member 40 has a wavy shape that creates unevenness when viewed from above, and in Figure 4, the top edge of partition member 40 has an edge that is approximately parallel to the bottom surface and has a wavy (flower-shaped) shape, so that partition member 40 has a portion that is not in contact with side wall portion 12 of smoking container 10, and this portion functions as an air communication port 60 that connects spatial region R with heat-generating agent storage region P.

[0013] FIG. 5 is a schematic diagram showing a fourth embodiment of the smoking receptacle 10 in the smoking apparatus 1 of the present invention. Partition member 40 in Figure 5(a) is dish-shaped with a bottom surface and a side wall connected to it to prevent fumigant 30 from falling into exothermic agent storage area P. Figure 5(b) is a perspective view showing an outline of smoking can 10, showing that the inner periphery of side wall 12 of smoking can 10 has a recessed portion extending from below the bottom surface of partition member 40 toward the top surface. The gap between this recessed portion and side wall 12 of partition member 40 functions as ventilation opening 60, connecting spatial area R with exothermic agent storage area P. It is preferable that the recessed portion has a shape in which the width of the recessed portion increases from below toward the top surface. Furthermore, as shown in Figure 5, the recessed portion may be provided with a ventilation opening by reducing the thickness of side wall portion 12, or the side wall portion 12 of the recessed portion may be shaped to bulge outward without changing the thickness of side wall portion 12 of smoking container 10, thereby creating a gap between partition member 40 and side wall portion 12 to form a ventilation opening.

[0014] 6 to 9 are diagrams showing fifth to eighth embodiments of the smoking container 10 in the smoking apparatus 1 of the present invention. Figures 6 to 9(a) are schematic diagrams explaining the partition member 40 and the ventilation opening 60, Figures 6 to 8(b) and Figure 9(c) are oblique views of the partition member 40, and Figure 9(b) is an oblique view of the smoking can 10 excluding the lid portion 50. The partition member 40 in Figures 6 to 9 has the shape shown in the perspective views of Figures 6 to 8(b) and 9(c). The partition member 40 in Figures 6 to 8 has one to multiple chimney-shaped holes, regardless of the illustrated size, that prevent the fumigant 30 from falling into the exothermic agent storage area P. The size of the chimney-shaped holes may be any size that prevents the fumigant 30 from falling into the exothermic agent storage area P. The chimney-shaped holes in the partition member 40 in Figures 6 to 8 function as ventilation holes 60 that connect the spatial area R and the exothermic agent storage area P. The shape of the chimney-shaped holes may be circular in plan view, as shown in Figures 6(b) and 7(b), or may be arc-shaped in plan view, as shown in Figure 8(b). Note that the partition member in Figure 8(b) shows an embodiment having four chimney-shaped ventilation holes 60 that are arc-shaped in plan view. Partition member 40 in Figure 9 is placed on a protrusion provided on the inside of side wall 12 of smoking receptacle 10 shown in Figure 9(b), and partition member 40 is preferably sized so that it can be placed on said protrusion without contacting the inner periphery of side wall 12 of smoking receptacle 10. The number of protrusions may be any number, regardless of the number shown, as long as partition member 40 can be placed on it. With this configuration, the gaps between adjacent protrusions and between partition member 40 function as ventilation openings 60 that connect spatial region R and exothermic agent storage region P.

[0015] 10 to 13 are schematic diagrams showing ninth to twelfth embodiments of the smoking apparatus 1 of the present invention in which the smoking receptacle 10 is made of metal. 10 to 13 has a shape that has a bottom surface and a side wall that is continuous with the bottom surface. This shape can prevent fumigant 30 from falling into exothermic agent containing area P. Figure 10 shows an embodiment in which the bottom surface of partition member 40 has a container-like portion for storing fumigant 30 and preventing the fumigant 30 from falling into heat-generating agent storage area P, and further has a spatial region R above the fumigant storage area Q in partition member 40, and has one or more holes in the side wall of partition member 40 that function as ventilation openings 60. Figure 11 shows an embodiment in which the bottom surface of the partition member 40 has one or more holes that function as ventilation holes 60, and has a container-like portion for containing the fumigant 30, preventing the fumigant 30 from passing through the ventilation holes 60 and falling into the heat-generating agent containing area P. Figure 12 shows an embodiment in which the partition member 40 has one or more chimney-like holes in the center of its bottom surface that function as ventilation ports 60, and the center of the bottom surface of the partition member 40 has a raised shape. Figure 13 shows an embodiment in which the partition member 40 has a two-stage structure, in which the lower portion is structured to contain the fumigant 30, the bottom surface of the upper portion is open, and the top surface of the lower portion has one or more holes in the other portions that function as ventilation communication ports 60.

[0016] The smoking box 10 of the present invention has water passage holes 16 on its bottom surface for water passage. A water-permeable material 18 is preferably placed above the water passage holes so as to cover all of the water passage holes, both in terms of water passage into the smoking box 10 and in terms of preventing the release of heat generating agent 20 from the smoking box 10 to the outer container 70. The shape of water passage holes 16 in plan view can be circular, rectangular, or polygonal. Circular holes preferably have a diameter of 0.5 to 10 mm, rectangular holes preferably have a side length of 0.5 to 10 mm, and polygonal holes preferably have a rectangular shape of approximately 0.5 to 10 mm x 0.5 to 10 mm. Water passage holes 16 may be small enough to prevent the release of heat generating agent 20 from the smoking box 10 to the outer container 70. Alternatively, water passage holes 16 may be large enough to prevent the release of heat generating agent 20 from the smoking box 10 to the outer container 70 using a water-permeable material 18, such as a nonwoven fabric, to prevent the release of heat generating agent 20 from the smoking box 10 to the outer container 70. The embodiment using a water-permeable material 18 is preferred. The number of water passage holes 16 depends on the size, but is preferably four or more, and more preferably about six to ten. However, if smoking canister 10 itself is made of a water-absorbent material and water can pass through smoking canister 10 itself sufficiently, it is not necessary to provide a water hole.

[0017] <Regarding the partition member 40> Partition member 40 used within smoking receptacle 10 of the present invention functions to prevent mixing of heat generating agent 20 and smoking agent 30 during storage or transportation after manufacture of the smoking device. Partition member 40 is basically sized so that its side edge contacts side wall 12 of smoking receptacle 10, but as mentioned above, it can also be configured so that its side edge only partially contacts side wall 12 of smoking receptacle 10, or so that partition member 40 has one or more chimney-like holes. Means for completely separating heat generating agent 20 and smoking agent 30 and preventing fumigation agent 30 from falling into heat generating agent storage area P include adjusting the sizes of heat generating agent 20 and smoking agent 30, or shaping partition member 40 to accommodate fumigation agent 30. In addition, when calcium oxide is used as heat generating agent 20, partition member 40 also has the function of preventing water vapor generated by the reaction between calcium oxide and water from coming into contact with fumigant 30. As the material for the partition member 40, aluminum and its alloy materials that do not melt due to the heat generated by the heat generating agent 20, as well as multi-layer materials laminated with resin sheets, graphite sheets, calcium carbonate paper, metal foil, etc., which have excellent heat resistance and thermal conductivity are preferred, and among these, aluminum and its alloy materials are preferably used.

[0018] <Water-absorbent material> When smoking receptacle 10 of the present invention is made of a water-absorbent material, there are no particular limitations on the material, so long as it is capable of absorbing water and allowing water to penetrate into smoking receptacle 10 when smoking receptacle 10 is placed in outer container 70 containing water W. Specific examples of water-absorbent materials include pulp such as paper, nonwoven fabric, resin, and composite materials thereof, with paper being preferred. The material can be determined taking into consideration the heat of hydration reaction of exothermic agent 20, and specifically, the basis weight of the paper should be 200 to 7000 g / m. 2 The range of 300 to 6500 g / m 2 The range of 300 to 3250 g / m is more preferable. 2 The thickness of the paper is preferably in the range of 0.5 to 8 mm, more preferably 1 to 3 mm.

[0019] <About Heat Generating Agent 20> The heat generating agent 20 filled in the smoking container 10 of the present invention generates heat at any temperature through a hydration reaction with water.Specific examples include calcium oxide, magnesium oxide, aluminum chloride, calcium chloride, iron oxide, etc., and among these, calcium oxide is preferred because it is easy to handle. The amount of heat generating agent 20 filled in smoking container 10 can be determined taking into consideration the size of smoking container 10 and the amount of smoking agent 30, but as a guideline, for example, a weight ratio of heat generating agent / smoking agent in the range of 1 to 20 is preferable.

[0020] <About Fumigant 30> The fumigating agent 30 filled in the smoking container 10 of the present invention contains an organic foaming agent. This organic foaming agent decomposes upon heating, generating a large amount of heat and carbon dioxide, nitrogen, or other gases (hereinafter collectively referred to as gases). Specific examples of organic foaming agents include azodicarbonamide, nitrocellulose, p,p'-oxybis(benzenesulfonylhydrazide), N,N'-dinitrosopentamethylenetetramine, and azobisisobutyronitrile. Among organic foaming agents, azodicarbonamide is preferred from the standpoints of decomposition temperature, gas generation rate, and the like. In particular, azodicarbonamide used in the smoking device of the present invention is preferably one that decomposes at around 200°C to generate gas, such as Uniform AZ (manufactured by Otsuka Chemical Co., Ltd.) and Cellmic (manufactured by Sankyo Kasei Co., Ltd.). These organic foaming agents can be used alone or in appropriate combination of two or more.

[0021] Depending on the purpose, chemicals may be blended into the fumigant 30. Examples of chemicals include pest control agents such as insecticides, insect repellents, repellents, attractants, and insect growth regulators, microorganism control agents such as antibacterial agents, disinfectants, and fungicides, deodorizers, and fragrances. Examples of pest control agents include pyrethroid insecticides such as natural pyrethrins, pyrethrins, allethrin, phthalthrin, resmethrin, furamethrin, permethrin, fenothrin, cyphenothrin, prallethrin, bifenthrin, transfluthrin, metofluthrin, profluthrin, imiprothrin, empenthrin, etofenprox, and silafluofen; carbamate insecticides such as propoxur and carbaryl; organophosphate insecticides such as fenitrothion and DDVP; oxadiazole insecticides such as metoxadiazone; phenylpyrazole insecticides such as fipronil; neonicotinoid insecticides such as imidacloprid and dinotefuran; sulfonamide insecticides such as amidoflumet; benzamide insecticides such as brofuranilide; chlorfena Examples of suitable anti-juvenile hormone-like compounds include pyrrole compounds such as pyrrole; insect juvenile hormone-like compounds such as methoprene and hydroprene; anti-juvenile hormone-like compounds such as precocene; molting hormone-like compounds such as ecdysone; chitin synthesis inhibitors such as chlorfluazuron, diflubenzuron, hexaflumuron, and buprofezin; phytoncides; essential oils such as peppermint oil, orange oil, cinnamon oil, and clove oil; isobornyl thiocyanoacetate (IBTA), isobornyl thiocyanoethyl ether (IBTE), quaternary ammonium salts, benzyl salicylate, DEET, di-n-butyl succinate, hydroxyanisole, rotenone, ethyl-butylacetylaminopropionate, icaridin, and 3-(Nn-butyl-N-acetyl)aminopropionic acid ethyl ester. Among these, pyrethroid insecticides, carbamate insecticides, oxadiazole insecticides and sulfonamide insecticides are preferred because they have improved volatilization, and fenothrin, cyphenothrin, permethrin, metoxadiazone, propoxur, amidoflumet and etofenprox are particularly preferred.

[0022] Examples of microbicides include agricultural fungicides such as isophthalonitrile, procymidone, Bayleton, and morestan, and environmental sanitation fungicides such as thiabendazole, 3-iodo-2-propynyl butylcarbamate (IPBC), isopropylmethylphenol (chemical name: 3-methyl-4-isopropylphenol), 4-chlorophenyl-3'-iodopropargyl formal, 4-chloro-3,5-dimethylphenol, chlorhexidine gluconate, chlorhexidine hydrochloride, benzethonium chloride, cetylpyridinium chloride, benzalkonium chloride, and silver-based agents. Examples of silver-based agents include silver carriers, inorganic silver salts such as silver oxide and silver nitrate, and carriers in which these are supported on a carrier. Examples of deodorants include lauryl methacrylate, geranyl chlorinate, catechin, polyphenol, and charcoal. As the fragrance, various fragrances can be used depending on the purpose. For example, fragrances described in "Perfume and Flavor Materials of Natural Origin", Steffen Arctander, Allured Pub. Co. (1960), "Encyclopedia of Fragrance", edited by the Japan Fragrance Association, Asakura Shoten (1989), "Flower Oils and Floral Compounds in Perfumery", Danute Pajaujis Anonis, Allured Pub. Co. (1993), "Perfume and Flavor Chemicals (aroma chemicals)", Vols. I and II, Steffen Arctander, Allured Pub. Co. (1994), "Fundamentals of Fragrance and Perfume Blending", edited by Nakajima Mototaka, Sangyo Tosho (1995), "Synthetic Fragrances: Chemistry and Product Knowledge", written by Indo Genichi, The Chemical Daily (1996), and "Encyclopedia of Fragrance", edited by Yatagai Mitsuyoshi, Maruzen (2005) can be used.

[0023] The fumigant 30 used in the smoking device 1 of the present invention contains 50 to 99% by weight, preferably 60 to 90% by weight, and more preferably 70 to 90% by weight of an organic foaming agent, which allows the agent to volatilize efficiently depending on the purpose. If the organic foaming agent content exceeds 99% by weight, a separate solvent or the like will be required to form the agent into granules, for example, which is not preferable. When a chemical agent is blended depending on the purpose, the chemical agent may be blended in an amount of 0.5 to 80.0% by weight, preferably 3 to 70% by weight, and particularly preferably 5 to 50% by weight, relative to the fumigant 30.

[0024] The fumigant 30 used in the smoking device 1 of the present invention is not particularly limited in its formulation form, and can be in any form, such as granules, lumps, particles, powder, tablets, or other solid forms. To produce a solid fumigant, each component can be molded into the desired shape using a known granulator or molding machine. The organic foaming agent and the desired agent are mixed, granulated using a binder or solvent, and dried to produce a plate-like agent, granules, powder, fine granules, or the like. When granulating these, for example, the particle size of granules should be about 1 to 10 mm and the length about 1 to 30 mm. The above-mentioned chemicals can be mixed and kneaded during granulation, or can be retained in the granules by spraying or immersing them in a solution after granulation. Examples of binders used during granulation include one or more of celluloses such as carboxymethyl cellulose, hydroxymethyl cellulose, and hydroxypropyl methyl cellulose; starch-based compounds such as pregelatinized starch, beta-starch, dextrin, and starch; natural polymer compounds such as gum arabic; and synthetic polymer compounds such as polyvinyl alcohol and polyvinylpyrrolidone. These binders may be added in an amount of 0.5 to 5% by weight relative to the fumigant. Examples of the solvent include water, alcohols such as ethanol, propanol, and benzyl alcohol, polyhydric alcohols such as ethylene glycol, diethylene glycol, dipropylene glycol, glycerin, and 1,3-butanediol, ethylene glycol monomethyl ether, ethylene glycol monoethyl ether, ethylene glycol monopropyl ether, ethylene glycol monobutyl ether, diethylene glycol monomethyl ether, diethylene glycol monoethyl ether, diethylene glycol monopropyl ether, diethylene glycol monobutyl ether, diethylene glycol monoisobutyl ether, triethylene glycol monobutyl ether, propylene glycol monomethyl ether, propylene glycol dimethyl ether, and dipropylene glycol. Examples of the solvent include glycol ethers such as cholesteryl monomethyl ether, tripropylene glycol monomethyl ether, tripropylene glycol monobutyl ether, propylene glycol monopropyl ether, dipropylene glycol monopropyl ether, propylene glycol monobutyl ether, propylene glycol tert-butyl ether, dipropylene glycol monobutyl ether, dipropylene glycol dimethyl ether, phenyl carbitol, phenyl cellosolve, and benzyl carbitol, paraffins such as liquid paraffin and n-paraffin, esters such as diethyl phthalate, benzyl benzoate, triethyl citrate, and isopropyl myristate, and others such as 3-methyl-4-methoxybutanol, N-methylpyrrolidone, and propylene carbonate. These solvents may be used alone or in any combination of two or more.

[0025] The fumigant 30 used in the smoking device 1 of the present invention may contain any component as long as it can achieve the effects of the present invention. Examples of other optional components that can be used include evaporation aids, disintegrants, rust inhibitors, stabilizers, excipients, and pigments. Examples of evaporation aids include zinc stearate, aluminum stearate, barium stearate, calcium stearate, zinc oxide, zinc carbonate, calcium carbonate, titanium dioxide, carbon black, antimony trioxide, decabromodiphenylene oxide, trimellitic anhydride, maleic anhydride, benzotriazole, 4,4'-oxybis(benzenesulfonylhydrazide), urea, etc. By using these in combination, the evaporation efficiency of the drug can be adjusted. Examples of disintegrants include organic acid esters such as parahydroxybenzoates, stearates, ethyl lactate, and chlorophenyl salicylate; organic acids such as lactic acid, malic acid, fumaric acid, tartaric acid, adipic acid, and succinic acid; and inorganic acids such as phosphoric acid. The inclusion of a disintegrant promotes disintegration of the preparation by heating, thereby increasing the efficiency of volatilization of the drug. Examples of the rust inhibitor include 1,2,3-benzotriazole and dicyclohexylammonium nitrite. Examples of the stabilizer include dibutylhydroxytoluene, butylhydroxyanisole, and tocopherol. Examples of excipients include minerals such as perlite, talc, diatomaceous earth, clay, bentonite, and clay minerals; sugars such as sucrose and glucose; and sugar alcohols such as maltitol, sorbitol, and xylitol. Furthermore, if necessary, various surfactants, efficacy enhancers, etc. may be added.

[0026] In the smoking device 1 of the present invention, it is preferable to use 1 to 20 times the weight of the heat generating agent 20 relative to the weight of the fumigating agent 30, and specifically, it is preferable to use 10 to 300 g of heat generating agent 20 for every 1 to 100 g of fumigating agent 30. Furthermore, when actually using the smoking apparatus 1 of the present invention, by placing the smoking canister 10 in outer container 70 containing water W, water W flows into the smoking canister 10 through water vent 16 provided in bottom portion 14 of the smoking canister 10, and water W comes into contact with heat generating agent 10 located at the bottom of the smoking canister 10. The heat of the hydration reaction between heat generating agent 10 and water W heats the smoking agent 30. The organic foaming agent contained in the smoking agent 30 decomposes when heated, and if a chemical agent is included, the chemical agent volatilizes along with the decomposition gas and is released to the outside of the smoking apparatus through smoke vent 52. Here, water vapor generated by the hydration reaction between heat generating agent 10 and water W flows directly from heat generating agent storage area P into spatial area R via ventilation opening 60. Meanwhile, gases generated by the decomposition of the organic foaming agent contained in fumigant 30 upon heating, particularly gases containing ammonia, move from fumigant storage area Q to spatial area R. In spatial area R, before the ammonia-containing gas is released outside the smoking device, it comes into contact with the water vapor generated by the hydration reaction of heat generating agent 10 and flowing into spatial area R, causing the ammonia to dissolve in the water in the water vapor. This significantly reduces the amount of ammonia contained in the gas released outside of smoking device 1, thereby significantly suppressing odor and irritation during smoking. In this case, the amount of water W used should be 0.5 to 3 times the weight of the heat generating agent 20, and by using a molar ratio of water W to the heat generating agent 20 of 1.5 to 9 times, better heat generation can be achieved. [Example]

[0027] The present invention will be specifically described in the following examples, but the present invention is not limited to these examples. In the examples, parts mean parts by weight unless otherwise specified.

[0028] "Confirmation test 1 of the ammonia concentration released outside the fumigation device" (1) Preparation of test samples [Making a smoking container] The following smoking vessels 1 and 2 were prepared. Smoking vessel 1 (Example 1): The embodiment shown in Figure 10 A cylindrical smoking chamber with a bottom, 53 mm in diameter and 63 mm in height, made of TFS (tin-free steel) was used. The smoking chamber had nine water vents (8 mm in diameter) at the bottom, and a water-permeable material (nonwoven fabric sheet) was placed above the water vents. The interior of the smoking chamber was divided into three areas using a partition member: a space area, a fumigant storage area, and a heat-generating agent storage area. The partition member was cylindrical with a roughly hollow hemispherical bottom. The cylindrical sidewall was positioned concentrically with the sidewall of the smoking chamber, and four 0.5 mm diameter vent holes were provided at equal intervals on the sidewall 20 mm from the top. The distance from the top of the smoking chamber to the bottom of the partition member was 40 mm. 3 g of fumigant was placed inside the partition member, and 55 g of heat-generating agent was placed in the space below the partition member. The lid of the smoking canister had a 50 mm diameter cover with seven 8 mm diameter smoke vents, which were sealed with heat-melting film. The lid was then attached to the top of the smoking canister, creating a space above the fumigant storage area, creating smoking canister 1. Smoking container 2 (Comparative examples 1 and 2) A smoking canister similar to smoking canister 1, except that it did not have a ventilation opening, had a single semicircular hole with a diameter of 1 mm in the side wall 60 mm from the bottom, which connected the heat generating agent storage area to the outside of the smoking canister, and served as a steam release port, to create smoking canister 2. The steam release port communicates from the exothermic agent containing area to the outside of the smoking canister, but does not communicate the exothermic agent containing area with the air space.

[0029] [Preparation of exothermic agent] Heat generating agent: 55g calcium oxide [Preparation of fumigants] Fumigant: 2.9 g of azodicarbonamide as an organic foaming agent, 0.01 g of zinc oxide as an evaporation aid, and 0.08 g of pregelatinized starch as a binder were mixed, granulated, and dried to produce a granular (3 mm diameter) fumigant.

[0030] (2) Test method Test box (0.85m x 1.33m x 1.91m height, 2.16m 3A stainless steel dish (90mm diameter x 20mm height) was filled with water (volume A (mL) as shown in Table 1 below) and placed in the center of the test box. The test started when the smoking container was immersed in the dish. The test was conducted in an environment where the temperature inside the test box was approximately 23°C and the relative humidity was approximately 50%. The results of the measurement methods described below are summarized in Table 1 below. -Measurement of water evaporation rate The amount of water evaporation was calculated using the following formula. Amount of water evaporated (g) = weight of water used (g) - (weight of exothermic agent after test (g) - weight of exothermic agent before test (g)) The test ended 30 minutes after it began. - Temperature measurement of exothermic agents A thermometer was placed at the center of the surface of the calcium oxide packed in the smoking chamber, and the temperature change was recorded every second using a data logger (Graphtec, MT100). From this record, the maximum temperature reached, the time (seconds) at which the temperature was held above 300°C, the time (seconds) at which the temperature was held above 350°C, and the time (seconds) from the maximum temperature to 200°C were extracted. Odor (ammonia) concentration measurement The ammonia concentration was measured every minute for the first 5 minutes after the start of the test, and then 10 and 30 minutes after the start of the test, using an ammonia detector tube (Gastec, No. 3La) at a height of 1.4 m from the floor on a wall measuring 1.33 m wide and 1.91 m high inside the test box. From these measurement results, the maximum ammonia concentration (ppm) and the time (min) to reach the maximum ammonia concentration were extracted. In addition, the irritation caused by the odor (ammonia) was judged according to the following criteria, using the maximum ammonia concentration (ppm) measured as described above as the standard. [Judgment criteria] ○: Maximum ammonia concentration is less than 100 ppm ×: Maximum ammonia concentration is 100 ppm or more

[0031] [Table 1]

[0032] As shown in Table 1, when comparing Example 1 and Comparative Example 1, the smoking device of Example 1, which is a specific example of the present invention and is equipped with a smoking container 1 having an air vent, has a maximum ammonia concentration of 60 ppm, which is the odorous ammonia released from the smoking device, whereas the smoking device of Comparative Example 1, which is equipped with a smoking container 2 without an air vent, has a maximum ammonia concentration of 120 ppm, confirming that the smoking device of Example 1 can halve the ammonia released outside the smoking device. This is the result of the inclusion of the vent hole of the present invention in the smoking device of Example 1. Specifically, the result clearly shows that the vent hole, which is configured to bring water vapor generated by the hydration reaction of calcium oxide into contact with the ammonia-containing gas generated by the thermal decomposition of azodicarbonamide, reduces the maximum concentration of ammonia released outside the smoking device by half, significantly reducing the odor during smoking. Comparative Example 2 is an example in which the smoking device of Comparative Example 1, equipped with a smoking container 2 without an air vent, was used, but the water volume A was changed from 18 mL to 55 mL, thereby increasing the amount of steam. Because there was no air vent, the steam and the ammonia-containing gas did not come into contact, and as a result, the amount of ammonia released outside the smoking device was not reduced, making it clear that the odor during smoking could not be reduced. Furthermore, as shown in Table 1, it was confirmed that there were no problems with the smoking itself in all of the smoking devices of Example 1 and Comparative Examples 1 and 2, judging from the heat generation temperature of the exothermic agent.

[0033] "Confirmation test 2 of the ammonia concentration released outside the fumigation device" (1) Preparation of test samples [Making a smoking container] The following smoking vessels 3 and 4 were prepared. Smoking vessel 3 (Examples 2 to 4): The embodiment shown in FIG. Pulp mold (basis weight 975g / m 2A cup-shaped container (open top diameter 83 mm, height 59 mm, bottom diameter 62 mm, thickness 1.5 mm) with side walls and a bottom molded as one unit was provided with nine water holes (8 mm diameter each) at the bottom, and a water-permeable material (nonwoven fabric sheet) was placed over all the water holes to form a smoking container. An aluminum cup (top diameter 64 mm, height 11 mm, bottom diameter 60 mm) was used as a partition member to divide the smoking chamber into three areas: a space area, a fumigant storage area, and a heat generating agent storage area. 3 g of fumigant was placed inside the partition member, and 55 g of heat generating agent was placed inside the smoking chamber below the partition member. A gap (1.8 mm) was left between the side wall of the smoking chamber and the side edge of the partition member. 2 The ventilation opening was formed by creating a recess in the side wall of the smoking chamber. The smoking canister had a lid (top diameter 82 mm, height 13 mm, bottom diameter 70 mm) made of the same material, and the bottom had smoke vent holes (9 holes, 8 mm diameter each), and this was designated smoking canister 3. Smoking container 4 (Comparative example 3) The smoking container 3 was fixed so that there was no gap between the side wall inside the smoking container and the outer periphery of the top surface of the partition member (no ventilation holes), and four 1 mm diameter holes (steam release holes) were made in the side wall 30 mm from the bottom of the smoking container to form smoking container 4. The steam release port communicates from the exothermic agent containing area to the outside of the smoking canister, but does not communicate the exothermic agent containing area with the air space.

[0034] (2) Test method The confirmation test was conducted using the same heat generating agent and fumigant as in the above "Confirmation Test 1 for the Concentration of Ammonia Released Outside the Fumigation Device," using fumigation vessel 3 (Examples 2-4) and fumigation vessel 4 (Comparative Example 3), and in the same manner as above, except for using the amount of water A (mL) listed in Table 2 below.The results of the same measurement method are summarized in Table 2 below.

[0035] [Table 2]

[0036] As shown in Table 2, when comparing Example 2 and Comparative Example 3, it was confirmed that the smoking device of Example 2, which is a specific example of the present invention and is equipped with a smoking container 3 having an air vent, has a reduced maximum concentration of ammonia, which is the odorous substance emitted from the smoking device, and also reduces irritation, compared to the smoking device of Comparative Example 3, which is equipped with a smoking container 4 without an air vent. In Examples 3 and 4, using the smoking device of Example 2, the amount of water A was changed from 18 mL to 55 mL and 90 mL, and it was also revealed that by increasing the amount of water vapor, the amount of ammonia released outside the smoking device was reduced. This is the result of the inclusion of the vent communication port of the present invention in the smoking apparatus of Examples 2 to 4. That is, the result clearly shows that the vent communication port, which is configured to bring water vapor generated by the hydration reaction of calcium oxide into contact with the ammonia-containing gas generated by the thermal decomposition of azodicarbonamide, suppresses the maximum concentration of ammonia released outside the smoking apparatus and significantly reduces the odor during smoking. Furthermore, as shown in Table 2, it was confirmed that in all of the smoking devices of Examples 2 to 4 and Comparative Example 3, there were no problems with the smoking itself, judging from the heat generation temperature of the exothermic agent.

[0037] "Confirmation test 3 of the ammonia concentration released outside the fumigation device" (1) Preparation of test samples [Making a smoking container] The following smoking vessels 5 and 6 were prepared. Smoking vessel 5 (Examples 5 and 6) The smoking chamber used was a cylindrical chamber with a bottom, 65 mm in diameter and 78 mm in height, made of TFS. The chamber had nine water holes (8 mm in diameter) at the bottom, and a water-permeable material (nonwoven fabric sheet) was placed above the holes. The interior of the smoking chamber was divided into three areas: the air space, the fumigant storage area, and the exothermic agent storage area, using an aluminum cup (top diameter 63 mm, height 25 mm, bottom diameter 54 mm) as a partition. 3g of smoking agent was placed inside the partition member, and 55g of heat generating agent was placed inside the smoking chamber below the partition member. The gap (201mm) between the side wall of the smoking chamber and the side edge of the partition member was2 ) was used as the ventilation port. The lid of the smoking canister was made into smoking canister 5 by welding a heat-melting film to a lid member (68 mm in diameter) having smoke vent holes (7 holes, 8 mm in diameter) to close the smoke vent holes. Smoking vessel 6 (Examples 7 and 8) The partition member of the smoking container 5 was replaced with an aluminum cup (top diameter 50 mm, height 28 mm, bottom diameter 38 mm), and the gap between the side wall of the smoking container and the side edge of the partition member (1354 mm) was 2 ) was used as a ventilation opening, and a smoking container 6 was obtained in the same manner.

[0038] (2) Test method The confirmation test was conducted using the same heat generating agent and fumigant as in the above "Confirmation Test 1 for the Concentration of Ammonia Released Outside the Fumigation Device," using fumigation vessel 5 (Examples 5 and 6) and fumigation vessel 6 (Examples 7 and 8), and in the same manner as above, except for using the amount of water A (mL) listed in Table 3 below.The results of the same measurement method are summarized in Table 3 below.

[0039] [Table 3]

[0040] As shown in Table 3, Examples 5 and 6 are specific examples of the present invention equipped with smoking containers 5 and 6 having ventilation openings, and since the maximum concentration of ammonia, which causes the odor emitted from the smoking device, is 70 ppm or 60 ppm, it was confirmed that the maximum concentration of ammonia, which causes the odor emitted from the smoking device, is suppressed and irritation is also suppressed. The area of ​​the ventilation opening is 201mm 2 , 1354mm 2 Examples 5 and 7 of Table 1 and the area of ​​the ventilation communication hole is 0.79 mm 2When compared with Example 1, it was confirmed that, regardless of the area, the presence of a vent hole connecting the spatial region and the heat generating agent storage region allows the water vapor generated by the hydration reaction of calcium oxide to come into contact with the ammonia-containing gas generated by the thermal decomposition of azodicarbonamide, thereby significantly suppressing the ammonia released outside the fumigation device and significantly reducing the odor during smoking. [Explanation of symbols]

[0041] 1: Smoker 10: Smoking container 12: Side wall 14: Bottom part 16: Water vent 18: Water permeable material 20: Heat generating agent 30: Fumigants 40: Partition member 50: Lid 52: Smoke vent 54: Lid member 60: Ventilation opening 70: Outer container W:Water

Claims

1. A smoking canister having three areas: a space area, a fumigant storage area, and a heat generating agent storage area; The fumigation agent storage area is located above the heat generating agent storage area, The spatial area is located above the fumigant storage area, The fumigant storage area stores a fumigant, The heat generating agent storage area stores a heat generating agent that generates heat through a hydration reaction, Furthermore, a ventilation communication port is provided to communicate the spatial region with the heat generating agent containing region, The water vapor generated in the heat generating agent storage area flows directly into the space area through the ventilation communication port. Smoking device.

2. A method for reducing odor during smoking by using the fumigation device described in claim 1 and allowing water vapor generated by the hydration reaction of the heat generating agent to flow directly from the heat generating agent storage area into the spatial area.

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