Medicine volatilization tool

Abstract

To provide a medicine volatilization tool which allows design of a hole which penetrates inside and outside and adjusts a volatilization amount of medicine included therein, for exhibiting in an early stage and significantly, a pest control effect and aromatic effect to pests such as fly, mosquito and botfly.SOLUTION: A medicine volatilization tool comprises: a medicine impregnation body (1) impregnated with medicine; a container main body (2) whose thickness is 0.5 to 20 mm, and which stores the medicine impregnation body; and a volatilization film (3) which is fastened to a peripheral edge of the container main body and can volatilize the medicine (1) in a state where the medicine impregnation body (1) is stored in the container main body (2). On the medicine impregnation body (1) side of the container main body (2), there is provided a protrusion part (21) which is protruded so as to contact a part of one surface of the medicine impregnation body (1) in a punctiform, in a linear state or in a planar state.SELECTED DRAWING: Figure 1

Description

[Technical field]

[0001] The present invention relates to a pesticide volatilizer configured to scatter and diffuse into the air pesticides for controlling pests such as mosquitoes, flies, horseflies, etc., and for calming and relaxing the mind. [Background technology]

[0002] Conventionally, there has been known a pest control device that kills or repels pests such as mosquitoes, flies, horseflies, etc. by gradually releasing a volatile pesticide contained in a container from the container and scattering and diffusing the pesticide into the air.

[0003] For example, Patent Document 1 discloses a drug container that comprises a drug consisting of a medicinal ingredient such as transfluthrin and an alcohol such as methanol or ethanol, a container made of PET or the like for containing the drug, and a volatile drug-permeable film made of linear low-density polyethylene or the like, from which the drug gradually volatilizes.

[0004] Patent Document 2 discloses a pest control device that comprises an agent containing transfluthrin and liquid isoparaffinic hydrocarbon, a transparent resin container for containing the agent, and a volatilization film made of low-density polyethylene or the like, and that allows the agent to gradually volatilize from the volatilization film. [Prior art documents] [Patent documents]

[0005] [Patent Document 1] JP 2014-94752 A [Patent Document 2] Patent Publication No. 2022-18358 Summary of the Invention [Problem to be solved by the invention]

[0006] However, in the pesticide container of Patent Document 1 and the pest control device of Patent Document 2, the contained pesticide is liquid, and there is a risk of liquid leakage, so it was difficult to design the device to have a hole penetrating part of it in order to cause the contained pesticide to volatilize more quickly.

[0007] Therefore, the object of the present invention is to provide a pesticide volatilization device that can be designed with holes that penetrate from the inside to the outside to adjust the amount of volatilization of the encapsulated pesticide, so that the control effect and aromatic effect against pests such as mosquitoes, flies, and horseflies can be exerted more quickly and to a greater extent. [Means for solving the problem]

[0008] [1] That is, the present invention relates to a drug volatilization device comprising a drug-impregnated body (1) impregnated with a drug, a main container (2) having a thickness of 0.5 to 20 mm and housing the drug-impregnated body, and a volatilization film (3) attached to the periphery of the main container (2) and capable of volatilizing the drug (1) when the drug-impregnated body (1) is housed in the main container (2), and comprising a protruding portion (21) protruding from the side of the drug-impregnated body (1) of the main container (2) so as to be able to come into contact with a part of one surface of the drug-impregnated body (1) in a dot-like, linear or planar manner.

[0009] [2] The drug volatilization device described in [1] is characterized in that an air flow path (F) is formed in the storage space (S) of the main container (2) to which the volatilization film (3) is attached, connecting one side of the drug-impregnated body (1) and the other side of the drug-impregnated body (1).

[0010] [3] The drug volatilization device according to [1] or [2] above, characterized in that a plurality of through holes (31) are formed in the volatilization film (3).

[0011] [4] The drug volatilization device described in [1] or [2] is characterized in that it is equipped with a fastening device (4) that engages with an engaging portion (21) provided on the main container (2) and can be attached to the user or the user's clothing. Effect of the Invention

[0012] According to the present invention, holes can be designed that penetrate from the inside to the outside to adjust the amount of volatilization of the encapsulated pesticide, so that the control effect against pests such as mosquitoes, flies, and horseflies, as well as the aromatic effect, can be exerted more quickly and to a greater extent. [Brief description of the drawings]

[0013] [Figure 1] This is an oblique view of the back side of the drug volatilization device of the present invention. [Diagram 2] This is an oblique view of the drug volatilization device of the present invention seen from the front side. [Diagram 3] This is a cross-sectional view along line AA of the drug volatilization device of the present invention. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0014] Hereinafter, the embodiment of the drug volatilization device of the present invention will be described in detail. The vertical direction is the up-down direction in Fig. 3, and the width direction is the front-back direction in Fig. 3. In addition, when there is a notation "~" indicating a range in the description, it includes an upper limit and a lower limit.

[0015] One embodiment of the present invention is composed of a drug-impregnated body 1 impregnated with a drug, a main container 2, a volatilization film 3, and a fastener 4. The drug is scattered and diffused to the outside through the volatilization film 3.

[0016] The agent of the present invention preferably contains an active ingredient for repelling insects, fragrance, etc., and may also contain a solvent. Examples of the active ingredient for repelling insects, fragrance, etc. are preferably pyrethroid compounds, essential oils, essential oil components, fragrances, and bactericidal components. By scattering or diffusing these active ingredients to the outside through the volatilizing film 3, they can act on the nerves of mosquitoes, flies, horseflies, etc. to kill or repel pests, and can calm and relax the minds of people around the agent volatilizing device of the present invention.

[0017] The pyrethroid compounds that are the active ingredients of the drugs include natural pyrethroids such as pyrethrin I ((1R,3R)-2,2-dimethyl-3-(2-methyl-1-propenyl)cyclopropanecarboxylic acid (1S)-2-methyl-4-oxo-3-(2Z)-2,4-pentadienyl-2-cyclopenten-1-yl ester), pyrethrin II ((1R,3R)-3-[(1E)-3-methoxy-2-methyl-3-oxo-1-propenyl]-2,2-dimethylcyclopropanecarboxylic acid (1S)-2-methyl-4-oxo-3-(2Z)-2,4-pentadienyl-2-cyclopenten-1-yl ester), and cinerin. Cinerin I<(1R,3R)-2,2-dimethyl-3-(2-methyl-1-propenyl)cyclopropanecarboxylic acid (1S)-3-(2Z)-(2-butenyl)-2-methyl-4-oxo-2-cyclopenten-1-yl ester>, Cinerin II<(1R,3R)-3-[(1E)-3-methoxy-2-methyl-3-oxo-1-propenyl]-2,2-dimethylcyclopropanecarboxylic acid (1S)-3-(2Z)-(2-butenyl)-2-methyl-4-oxo-2-cyclopenten-1-yl ester>, Jasmolin I<(1R,3R)-2,2-dimethyl-3-(2-methyl-1-propenyl)cyclopropanecarboxylic acid (1S)-2-Methyl-4-oxo-3-(2Z)-2-pentenyl-2-cyclopenten-1-yl ester>, Jasmolin II <(1R,3R)-3-[(1E)-3-methoxy-2-methyl-3-oxo-1-propenyl]-2,2-dimethylcyclopropanecarboxylic acid> (1S)-2-methyl-4-oxo-3-(2Z)-2-pentenyl-2-cyclopenten-1-yl ester>, synthetic pyrethroids, allethrin I <2,2-dimethyl-3-(2-methyl-1-propenyl)cyclopropanecarboxylic acid 2-methyl-4-oxo-3-(2-propenyl)-2-cyclopenten-1-yl ester>, allethrin II <3-(3-methoxy-2-methyl-3-oxo-1-propenyl)-2,2-dimethylcyclopropanecarboxylic acid 2-methyl-4-oxo-3-(2-propenyl)-2-cyclopenten-1-yl ester>, phthalthrin (also known as D-tetramethrin) <(1,3-dioxo-4,5,6,7-tetrahydroisoindolin-2-yl)methyl = 2,2-dimethyl-3-(2-methylprop-1-en-1-yl) cyclopropane-1-carboxylate>, resmethrin <(5-benzyl-3-furyl)methyl = 2,2-dimethyl-3-(2-methylprop-1-en-1-yl) cyclopropanecarboxylate>, fenothrin <3-phenoxybenzyl = 2-dimethyl-3-(methylpropenyl) cyclopropanecarboxylate>, permethrin <3-phenoxybenzyl = 3-(2,2-dichlorovinyl)-2,2-dimethylcyclopropanecarboxylate>, cyphenothrin <cyano(3-phenoxyphenyl)methyl = 2,2-dimethyl-3-(2-methylprop-1-en-1-yl) cyclopropanecarboxylate>, etofenprox <4-(4-ethoxyphenyl)-4-methyl-1-(3-pheno oxyphenyl)-2-oxapentane>, metofluthrin <2,2-dimethyl-3-(prop-1-en-1-yl)cyclopropanecarboxylic acid = 2,3,5,6-tetrafluoro-4-(methoxymethyl)benzyl>, transfluthrin <(1R,3S)-3-[(E)-2,2-dichlorovinyl]-2,2-dimethylcyclopropanecarboxylic acid = 2,3,5,6-tetrafluorobenzyl>, cyfluthrin <cyano( 4-fluoro-3-phenoxyphenyl)methyl=3-(2,2-dichlorovinyl)-2,2-dimethylcyclopropane-1-carboxylate>, empenthrin <4-methylhept-4(E)-en-1-yn-3-ol>, profluthrin <(1R,3R)-2,2-dimethyl-3-[(Z)-1-propenyl]cyclopropanecarboxylate 2,3,5,6-tetrafluoro-4-methylbenzyl>, etc. are preferred. Among the above, permethrin, fenothrin, allethrin, phthalthrin, restmethrin, metofluthrin, transfluthrin, empenthrin, and profluthrin are more preferred, and metofluthrin, transfluthrin, empenthrin, and profluthrin are most preferred. The above pyrethroid compounds can be used for insect control. In addition, one or more of the above pyrethroid compounds may be mixed and used as a drug to be impregnated into the drug-impregnated body 1.

[0018] As the essential oils which are the active ingredients of the medicine, those extracted from plants such as grapefruit, geranium, rosemary, anise, almoise, ylang-ylang, orange, cananga, chamomile, cardamom, cajeput, clary sage, coriander, cypress, sandalwood, cedarwood, citronella, juniper berry, ginger, spearmint, sage, tea tree, nutmeg, neroli, pine needle, basil, patchouli, palmarosa, fennel, black pepper, petitgrain, vetiver, peppermint, bergamot, marjoram, mandarin, lemon eucalyptus, eucalyptus, copaiba, lime, lavender, lemon, lemongrass, rosewood, shell ginger leaf, cinnamon, peppermint, etc. are preferable. The above essential oils can be used for insect repellency and fragrance. Then, the essential oil extracted from one of these plants can be blended, or the essential oils extracted from two or more of these plants can be blended and used as a medicinal agent, and the medicinal agent-impregnated body 1 can be impregnated with the medicinal agent.

[0019] The essential oils obtained from the above plants contain various volatile compounds, such as essential oil components, and can be used as active ingredients in medicines. Grapefruit contains d-limonene, myrcene, α-pinene, etc. Geranium contains citronellol, geraniol, linalool, etc. Rosemary contains α-pinene, camphor, 1,8-cineole, etc. Anise contains (E)-anethole, limonene, anisaldehyde, etc. Almoise contains 1,8-cineole, thujone, borneol, camphor, pinene, artemisinin (sesquiterpene lactone), linalool, nerol, etc. Ylang-ylang contains linalool, β-potassium olefin, germacrene D, etc. Orange contains limonene, myrcene, β-bisabolene, etc. Cananga contains caryophyllene, geranyl acetate, terpineol, etc. Chamomile contains farnesene, chamazulene, α-bisabolol oxide B, etc. Cardamom contains 1,8-cineole, α-terpinyl acetate, limonene, etc. Cajeput contains 1,8-cineole, α-terpineol, para-cymene, etc. Clary sage contains linalyl acetate, linalool, germacrene D, etc. Cloves contain eugenol, β-caryophyllene, eugenyl acetate, etc. Coriander contains d-linalool, camphor, α-pinene, etc. Cypress contains α-pinene, δ-3-carene, etc. Sandalwood contains cis-α-santalol, cis-β-santalol, epi-β-santalol, etc. Cedarwood contains thujopsene, α-cedrene, cedrol, etc. Citronella contains geraniol, limonene, citronellol, camphene, citronellal, geranyl acetate, α-pinene, α-terpineol, etc. Juniper berry contains α-pinene, myrcene, β-farnesene, etc. Ginger contains ar-curcumene, α-zingiberene, β-sesquiphellandrene, etc.Spearmint contains (-)-carvone, dihydrocarvone, 1,8-cineole, etc. Sage contains α-thujone, β-thujone, camphor, etc. Tea tree contains terpinen-4-ol, γ-terpinene, α-terpinene, etc. Nutmeg contains α-pinene, sabinene, β-pinene, etc. Neroli contains linalool, limonene, β-pinene, etc. Pine needles contain α-pinene, β-pinene, myrcene, etc. Basil contains linalool, methyl chavicol, β-caryophyllene, etc. Patchouli contains patchouli alcohol, α-patulene, β-caryophyllene, etc. Palmarosa contains geraniol, geranyl acetate, linalool, etc. Fennel contains (E)-anethole, limonene, methyl chavicol, etc. Black pepper contains β-3-caryophyllene, δ-3-carene, limonene, etc. Petitgrain contains linalyl acetate, linalool, α-terpineol, etc. Vetiver contains vetiverol, vetiven, α-vetibol, etc. Bergamot contains limonene, linalyl acetate, linalool, etc. Marjoram contains terpinen-4-ol, cis-sabinene hydrate, para-cymene, etc. Mandarin contains limonene, γ-terpinene, β-pinene, etc. Lemon eucalyptus contains citronellal, citronellol, citral, etc. Eucalyptus contains 1,8-cineole, α-pinene, limonene, aromadendrene, p-cymene, t-pinocarveol, globulol, etc. Copaiba contains β-potassium olefin, α-humulene, α-copaene, t-α-bergamotene, germacrene D, cadinene, α-bisabolene, γ-mulolene, β-elemene, σ-elemene, etc. Lime contains limonene, γ-terpinene, β-pinene, etc. Lavender contains linalyl acetate, linalool, (Z)-β-ocimene, etc. Lemon contains limonene, β-pinene, γ-terpinene, etc.Lemongrass contains geranial, citral, elemol, etc. Rosewood contains linalool, α-terpineol, cis-linalool oxide, etc. Peppermint contains l-menthol, l-menthone, menthofuran, etc. Cinnamon bark contains cinnamaldehyde, t-2-methoxycinnamaldehyde, coumarin, etc. Shell ginger leaves contain 1,8-cineole, terpinen-4-ol, p-cymene, etc. Mint contains l-menthol, l-menthone, menthofuran, etc. The above essential oil components can be used for insect repellency and fragrance. One or more of the above essential oil components can be blended and used as a drug to be impregnated into the drug-impregnated body 1.

[0020] The solvent that can be contained in the agent of the present invention is a liquid at room temperature of about 20 to 30° C., in which the active ingredients for insect repellency, fragrance, etc. are uniformly dissolved. The solvent is scattered and diffused to the outside through the volatilization film 3 together with the active ingredients for insect repellency, fragrance, etc.

[0021] As the solvent, since it is liquid at room temperature of about 20 to 30° C. where it is used and can uniformly dissolve the above-mentioned active ingredients for insect repellency, fragrance, etc., specific examples thereof are triethyl citrate, triethyl phosphate, isoparaffin hydrocarbons, ethylene glycol, phenyl diglycol, butyl triglycol, benzyl glycol, triethylene glycol monobutyl ether, propylene glycol monomethyl ether, etc. These solvents can be used alone or in combination of two or more.

[0022] The initial weight ratio of the active ingredient for insect repellency, fragrance, etc. and the solvent is preferably active ingredient / solvent=5 / 95 to 100 / 0, more preferably 7 / 93 to 100 / 0. When the mixing ratio of the active ingredient for insect repellency, fragrance, etc. and the solvent is within this range, the amount of volatilization of the encapsulated agent does not change significantly depending on the time of use, and the amount of volatilization per day in a 30°C environment can be approximately constant.

[0023] In the agent of the present invention, various materials can be contained in addition to the above-mentioned active ingredients for insect repellency, fragrance, etc., and solvents. For example, antioxidants such as 4-tert-butyl-methoxydibenzoylmethane, ethylhexyl methoxycinnamate, and dibutylhydroxytoluene can be blended to prevent oxidation of the active ingredients.

[0024] The drug-impregnated body 1 is a member that is impregnated with the above-mentioned drug, and is contained in the main container 2 that constitutes the container of the drug volatilizer of the present invention. Since the drug-impregnated body 1 is a solid, holes that penetrate from the inside to the outside to adjust the amount of volatilization of the drug contained therein can be drilled in the volatilization film 3. The drug-impregnated body 1 has a mesh structure with gaps inside, and is a member that can hold the drug in the gaps by surface tension or the like. The mesh in the drug-impregnated body 1 may be regular or irregular. Specifically, the drug-impregnated body 1 is preferably paper or nonwoven fabric having fine spaces inside. When the drug-impregnated body 1 is a nonwoven fabric, its material is preferably one or more types selected from polyolefin fibers, aramid fibers, polyester fibers, vinylon fibers, nylon fibers, rayon fibers, and the like. In this embodiment, as shown in Figures 1 to 3, the outer shape of the drug-impregnated body 1 is a rectangle that is elongated in the vertical direction, but in other embodiments, the outer shape of the drug-impregnated body 1 can be a rectangle that is elongated in the width direction, or a circle, an ellipse, a triangle, a square, a polygon with pentagons or more, a heart shape, a star shape, etc.

[0025] In addition, the chemical-impregnated body 1 has a basis weight of 50 to 200 g / m so that the chemical volatilizer of the present invention can be easily carried. 2It is preferable that the drug-impregnated body 1 has a relatively thin shape such as a sheet, card, or plate having a thickness of 100 to 800 μm and an area of ​​100 to 200 mm square, and the basis weight, thickness, and size can be changed depending on the amount of drug to be impregnated. In this way, the drug-impregnated body 1 can be in the form of a relatively thin sheet such as paper when the amount of drug to be impregnated is small, and can be in the form of a plate thicker than the sheet when the amount of drug to be impregnated is large. In this embodiment, the drug-impregnated body 1 is in the form of a sheet without holes, but in other embodiments, it may be provided with one or more circular or angular holes.

[0026] The main container 2 has a thickness of 0.5 to 20 mm and is a member for housing the drug-impregnated body 1. The main container 2 can contain the drug-impregnated body 1 by having its periphery attached to the volatilization film 3. In addition, when the main container 2 is used by attaching it to the user or the user's clothing and carrying it around, it is preferable that the storage space S housing the drug-impregnated body 1 does not have any holes communicating with the outside so that the drug is less likely to adhere to the user. In addition, in order to form the storage space S, the main container 2 preferably has a periphery that protrudes and is recessed into a box shape. In addition, the main container 2 preferably has a thickness of 0.5 to 20 mm, and the transmittance of light at 600 nm is preferably 10% or more, the transmittance of light at 800 nm is preferably 30% or more, and the transmittance of light at 600 nm is preferably 20% or more, and the transmittance of light at 800 nm is more preferably 50% or more. When the thickness and transmittance at a specific wavelength of the main container 2 are within these ranges, the main container 2 has excellent moldability, such as being easily molded into a desired shape without forming a through hole when molded by a method such as vacuum molding or press forming. In addition, the light transmittance of the main container 2 is preferably calculated as the ratio of transmitted light to incident light using an ultraviolet-visible spectrophotometer.

[0027] The main container 2 has a protruding portion 21 on the drug-impregnated body 1 side, i.e., on the inside, which is protruding so as to be able to come into contact with a part of one surface of the drug-impregnated body 1 in a dot-like, linear or planar manner. The protruding portion 21 creates an appropriate gap between the inside of the main container 2 and the drug-impregnated body 1, so that the drug can easily volatilize from the one surface side of the drug-impregnated body 1, and the pest control effect and the aromatic effect against pests such as mosquitoes, flies, and horseflies can be exerted earlier and more to a greater extent. In particular, the volatilizing film 3 is attached to the main container 2, and in the storage space S between the volatilizing film 3 and the main container 2 to store the drug-impregnated body 1, in addition to the above-mentioned protruding portion 21, it is preferable that an air flow path F is formed connecting one surface side of the drug-impregnated body 1 and the other surface side of the drug-impregnated body by having a gap so that the upper or lower part of the drug-impregnated body 1 does not come into contact with the main container 2. When such a flow path F is formed, the drug is more easily volatilized from one surface side of the drug-impregnated body 1, and the above-mentioned effect is more easily exhibited. In this embodiment, the protrusion 21 is formed as a ring shape like a rectangular donut shape that protrudes inside the main container 2 and is smaller than the outer shape of the drug-impregnated body 1, as shown in Figures 1 to 3, but in other embodiments, it may be formed as one or more small cones, pyramids, truncated cones, truncated pyramids, etc. protruding inside the main container 2, may be formed as one or more straight or broken rods protruding inside the main container 2, or may be formed as one or more small cylinders, prisms, etc. protruding inside the main container 2.

[0028] The main container 2 is preferably formed with an engagement portion 22 that engages with a fastener 4 that can be attached to the user or the user's clothing. The engagement portion 22 allows the user to carry the drug volatilization device of the present invention via the fastener 4. In this embodiment, the engagement portion 22 is formed as a hole drilled in the main container 2 above the storage space S as shown in Figures 1 to 3, and the fastener 4 can be engaged with the hole, but in other embodiments, it can be a clip, a protrusion, a hook, a magnet, etc., as long as it can be engaged with the fastener 4.

[0029] The main container 2 is preferably made of at least one resin selected from polyethylene, polypropylene, polyethylene terephthalate, polypropylene, alicyclic olefin copolymer, and ethylene-vinyl copolymer. When the main container 2 is made of these materials, it is easy to mold in processing, and the adhesion with the volatilization film 3 is improved, so that the drug-impregnated body 1 contained therein can be prevented from falling off. In the embodiment, the main container 2 has a single-layer structure as shown in Figure 3, etc., but in other embodiments, it can have a multi-layer structure of two or more layers, such as by laminating an inner layer and an outer layer.

[0030] The main container 2 may be colored. For example, it may be colored blue, green, red, etc. It may be colored by applying paint to the front or back of a resin such as polyethylene terephthalate, polypropylene, alicyclic olefin copolymer, ethylene-vinyl copolymer, etc., or by kneading a dye or pigment into the resin in advance.

[0031] The volatilization film 3 is a member that is attached to the periphery of the main container 2 when the drug-impregnated body 1 is housed in the main container 2 and can volatilize the drug. The volatilization film 3 is preferably formed from at least one resin selected from polyethylene or polypropylene, and among polyethylenes, low-density polyethylene is preferable. Low-density polyethylene has a lower crystallinity than general polyethylene, and therefore has a density of 0.910 to 0.930, and a large amount of the vaporized drug passes through the amorphous portion and is scattered to the outside. Among low-density polyethylenes, linear low-density polyethylene with a density of 0.910 to 0.925 and little branching is more preferable. By using such linear low-density polyethylene, it is possible to adjust the amount of volatilization of the encapsulated drug so that it does not change significantly over time. The volatilization film 3 can be made by mixing or multi-layering polyethylene and polypropylene.

[0032] It is preferable that a plurality of through holes 31 are provided in the volatilization film 3. Since the drug-impregnated body 1 is solid, there is no risk of the drug leaking from the storage space S in which the drug-impregnated body 1 is stored, so that a plurality of through holes 31 can be provided in the volatilization film 3. By providing the through holes 31, the amount of volatilization of the drug contained therein can be adjusted, and the control effect and the aromatic effect against pests such as mosquitoes, flies, and horseflies can be exhibited earlier and more significantly. In this embodiment, the through holes 31 are a plurality of oval holes as shown in FIG. 2, etc., but in other embodiments, they can be shapes having curved sides such as circles and ellipses, polygons having pentagons or more, hearts, stars, and other shapes consisting only of straight sides. In order to adjust the amount of volatilization of the drug contained therein, the ratio of the total area of ​​the plurality of through holes 31 to the area of ​​the volatilization film 3 is preferably 10 to 60%, and more preferably 15 to 55%.

[0033] The thickness of the volatilization film 3 is preferably 30 to 100 μm, and more preferably 40 to 90 μm. With such a thickness, the amount of volatilization of the drug impregnated in the drug-impregnated body 1 can be kept approximately the same over time. In the volatilization film 3, the light transmittance at 600 nm is preferably 10% or more, the light transmittance at 800 nm is preferably 30% or more, and the light transmittance at 600 nm is preferably 20% or more, and the light transmittance at 800 nm is preferably 50% or more. Furthermore, the oxygen gas permeability of the volatilization film 3 is 1000 to 6000 cc / (m2) in an environment of 23°C. 2 ·24hr·atm), and 1200 to 4000cc / (m 2 It is preferable that the gas permeability is within this range. When the gas permeability is within this range, the amount of volatilization of the agent can be kept approximately the same over a specified period of time, and the pest control effect can be easily maintained for a long period of time, such as 200 days. The gas permeability is preferably measured by gas chromatography using the isobaric method described in JIS K 7126-2.

[0034] In addition, in the drug volatilization device of the present invention, it is preferable that a protective film made of polyethylene terephthalate, aluminum-deposited polyethylene terephthalate, or the like is attached by fusion or the like to the periphery of the volatilization film 3 on the side of the volatilization film 3 opposite the drug-impregnated body 1 and the main container 2. The protective film can prevent the drug from volatilizing from the volatilization film 3 before the user actually uses it. When using the drug volatilization device of the present invention, the protective film is peeled off from the volatilization film 3.

[0035] The fastener 4 is a member that can be directly or indirectly engaged with the engaging portion 22 provided on the main container 2 and attached to the user or the user's clothing. The fastener 4 allows the user to carry the drug volatilizer of the present invention. In this embodiment, as shown in Figs. 1 and 2, the fastener 4 has a fastener base 41, one end of which engages with the engaging portion 22, a string 42 looped and fixed to the fastener base 41, and a hook-shaped fastener piece 43 protruding from one surface of the fastener base 41. If the string 42 is hung behind the user's neck, the drug volatilizer of the present invention can be carried by hanging it from the neck, or if the hook-shaped fastener piece 43 is inserted and engaged in a breast pocket of the user's clothing, the drug volatilizer of the present invention can be carried around the chest. In addition, in this embodiment, the portion of the fastener 4 that can be attached to the user or the user's clothing is a string or hook-shaped member as described above, but in other embodiments it may be either a string or a hook-shaped member, or it may be a member such as a clip, a safety pin, a screw and a nut, a needle and a needle receiver, etc. EXAMPLES

[0036] The chemical volatilizer of the present invention will be specifically described below. Note that the present invention is not limited to the following examples.

[0037] <Example 1> 2 g of transfluthrin, an active ingredient that kills and repels pests such as mosquitoes, and 10 g of an isoalkane with 10 to 16 carbon atoms, an isoparaffin-based solvent, were mixed to prepare 10 mL of the drug, and 250 μL of the drug (containing 50 mg of transfluthrin) was dispensed onto a rectangular piece of paper (basis weight: 84 g / m2) 55 mm wide and 85 mm long. 2 ) was dropped onto the drug-impregnated body 1 to produce the drug-impregnated body 1. The drug-impregnated body 1 was then housed in a main container 2 having a protruding portion 21 formed in a ring-shaped, doughnut-like shape that is smaller than the outer shape of the drug-impregnated body 1 and protruding from the inside of the main container 2, as shown in Figures 1 to 3, and a volatilization film 3 having a plurality of oval through-holes 31 was attached to the periphery of the main container 2, as shown in Figure 2, etc., to produce a drug volatilization device.

[0038] <Example 2> A rectangular piece of paper measuring 55 mm wide and 85 mm long (weight: 120 g / m 2 A drug volatilization device was prepared in the same manner as in Example 1, except that a drug volatilization device was used.

[0039] <Comparative Example 1> A drug volatilization device was prepared in the same manner as in Example 1, except that a main container was used that had no protrusion 21 formed so as to prevent contact with a portion of one side of the drug-impregnated body in a dotted, linear or planar manner, and that had a flat surface facing one side of the drug-impregnated body.

[0040] <Comparative Example 2> A rectangular piece of paper measuring 55 mm wide and 85 mm long (weight: 120 g / m 2 A drug volatilization device was prepared in the same manner as in Comparative Example 1, except that a drug volatilization device was used.

[0041] Using the pesticide volatilization devices of each Example and Comparative Example, the amount of pesticide volatilized after a specified period of time was measured.

[0042] [Amount of drug evaporated] The prepared drug volatilizer was left to stand for 24 hours in a thermostatic chamber at 25°C. After that, the drug-impregnated body was taken out of the drug volatilizer, and the drug containing transfluthrin remaining in the drug-impregnated body was extracted with 50 mL of acetone. A certain amount of the drug was extracted with a microsyringe and analyzed by gas chromatography. The amount of transfluthrin was calculated by the absolute calibration curve method using the area of ​​the transfluthrin peak, and the remaining amount of transfluthrin extracted from the drug-impregnated body after the test was calculated from that value. The remaining amount of transfluthrin was subtracted from the transfluthrin impregnated in the drug-impregnated body to obtain the amount of drug (especially the active ingredient) volatilized. Those in which 80% or more of the transfluthrin impregnated in the drug-impregnated body had volatilized were rated as ◎, those in which 50% or more but less than 80% of the transfluthrin impregnated in the drug-impregnated body had volatilized were rated as ○, those in which 30% or more but less than 50% of the transfluthrin impregnated in the drug-impregnated body had volatilized were rated as △, and those in which less than 30% of the transfluthrin impregnated in the drug-impregnated body had volatilized were rated as ×. Of these, ◎ and ○ were judged to be good, as the drug, especially the active ingredient, had been sufficiently volatilized, and △ and × were judged to be poor, as the amount of volatilization was insufficient.

[0043] The test results for each of the examples and comparative examples are summarized in Table 1.

[0044] [Table 1]

[0045] As shown in Table 1, in the drug volatilizer, since the drug-impregnated body 1 is solid, there is no risk of the drug leaking from the storage space S in which the drug-impregnated body 1 is stored, so that the volatilization film 3 can be provided with a plurality of through holes 31, and it was found that this can increase the amount of volatilization of the drug contained therein. Furthermore, by comparing each example and each comparative example, it was found that the amount of volatilization can be increased by using a main container 2 having a protruding portion 21 that is protruding on the drug-impregnated body 1 side of the main container 2 so as to be able to abut against a part of one surface of the drug-impregnated body 1 in a dot-like, linear or planar manner. [Explanation of symbols]

[0046] 1. Drug-impregnated body 2. Main container 21....Protruding part 22 Engagement portion 3. Volatile film 31...Through hole 4. Locking device 41...Lock base 42...String body 43 ... Locking piece S... Storage space F... flow path

Claims

1. A drug-impregnated body impregnated with a drug; A main container having a thickness of 0.5 to 20 mm and housing the drug-impregnated body; The drug-impregnated body is provided with a vaporization film attached to the periphery of the main container and capable of vaporizing the drug when the drug-impregnated body is contained in the main container, A drug volatilization device characterized in that it has a protruding portion on the drug-impregnated body side of the main container, which is capable of abutting a portion of one surface of the drug-impregnated body in a dot-like, linear or planar manner.

2. The drug volatilization device described in claim 1, characterized in that an air flow path is formed in the storage space between the main container to which the volatilization film is attached, connecting one side of the drug-impregnated body and the other side of the drug-impregnated body.

3. A drug volatilization device as described in claim 1 or claim 2, characterized in that a plurality of through holes are drilled in the volatilization film.

4. A drug volatilization device as described in claim 1 or claim 2, characterized in that it is provided with a fastener 4 that engages with an engaging portion provided on the main container and can be attached to the user or the user's clothing.

Images