Aerosol products
The aerosol product addresses the issue of user experience deterioration in switching modes by optimizing nozzle dimensions and spray ratios, enabling efficient wide and narrow-area spraying with minimal difference in user experience.
Patent Information
- Authority / Receiving Office
- JP · JP
- Patent Type
- Applications
- Current Assignee / Owner
- DAINIHON JOCHUGIKU CO LTD
- Filing Date
- 2025-01-08
- Publication Date
- 2026-07-21
AI Technical Summary
Existing aerosol products with interchangeable or two-way spray structures experience a decrease in spray amount per unit time when switching to long mode due to increased resistance in the long nozzle, leading to a deterioration in user experience, especially when spraying over narrow areas or at a distance.
An aerosol product that can switch between normal and long modes with specific ratios for adhesion area and spray volume per unit time, ensuring minimal difference in user experience, featuring a long nozzle length of 60 mm or more, appropriate nozzle diameters, and nozzle diameter ratios to maintain spray force and accuracy.
The aerosol product maintains versatility by allowing wide-area and narrow-area spraying with minimal user experience difference, ensuring effective adhesion and targeting of distant or narrow spaces with enhanced spray volume and reduced resistance.
Smart Images

Figure 2026119997000001_ABST
Abstract
Description
[Technical Field]
[0001] The present invention relates to an aerosol product that can switch between a normal mode, in which the aerosol agent is sprayed through a first nozzle provided on an actuator, and a long mode, in which the aerosol agent is sprayed through a second nozzle provided on a long nozzle that extends in the spraying direction from the position where the first nozzle is located in the normal mode. [Background technology]
[0002] Generally, aerosol products consist of an aerosol container filled with an aerosol solution containing an aerosol concentrate and a propellant. The aerosol concentrate is sprayed by the pressure of the propellant by operating an actuator attached to a stem on the aerosol container.
[0003] In this type of aerosol product, there is a spray structure that can accommodate various usage scenarios, such as when you want to spray over a wide area or into a narrow gap. For spraying over a wide area, the aerosol agent is sprayed through a nozzle provided in the spray unit of the actuator (normal spraying mode), and for spraying into a narrow gap, a separately prepared long nozzle is attached to the spray unit and the aerosol agent is sprayed through a nozzle provided at the tip of the long nozzle (long spraying mode). This is known as the "exchangeable type" (see, for example, Patent Document 1).
[0004] Furthermore, there is a spray structure that differs from a spray structure in which a separately prepared long nozzle is attached to the spray unit. This structure is called a "two-way type" in which a long nozzle is connected to the spray unit, and the normal mode in which the aerosol agent is sprayed through a first nozzle provided on the spray unit and the long mode in which the aerosol agent is sprayed through a second nozzle provided on the long nozzle can be switched by rotating the spray unit (see, for example, Patent Documents 2 to 5). [Prior art documents] [Patent Documents]
[0005] [Patent Document 1] Japanese Patent Application Publication No. 11-300241 [Patent Document 2] Japanese Utility Model Publication No. 61-106365 [Patent Document 3] Japanese Utility Model Publication No. 62-83565 [Patent Document 4] Japanese Patent Publication No. 2002-347862 [Patent Document 5] Japanese Patent Publication No. 2004-329977 [Overview of the Initiative] [Problems that the invention aims to solve]
[0006] In the interchangeable and two-way spray structures described above, when switching from normal mode to long mode by attaching a long nozzle to the spray unit or by rotating the spray unit, the amount of sprayed per unit time decreases due to the resistance generated when the aerosol agent flows through the long nozzle. This results in a narrower processing area per unit time compared to normal mode, leading to a deterioration in user experience. This tendency for deterioration in user experience becomes stronger as the length of the long nozzle increases.
[0007] Furthermore, in long mode, for example, when spraying insects at a distance, it is preferable to have a stronger spray force for the aerosol agent, which requires a larger spray volume per unit time. However, the larger the spray volume per unit time, the greater the resistance to the aerosol agent flow within the long nozzle tends to be, making the difference in user experience when switching between normal mode and long mode even more pronounced.
[0008] This invention has been made in view of the above problems, and aims to provide an aerosol product that can be sprayed over a wide area and a narrow area, while minimizing the difference in user experience when switching between normal mode and long mode, and increasing versatility. In this invention, minimizing the difference in user experience when switching between normal mode and long mode means, in particular, suppressing the deterioration of user experience in long mode. [Means for solving the problem]
[0009] The characteristic configuration of the aerosol product according to the present invention, which solves the above problems, is: An aerosol product that can switch between a normal mode, in which the aerosol agent is sprayed through a first nozzle provided on an actuator, and a long mode, in which the aerosol agent is sprayed through a second nozzle provided on a long nozzle that extends in the spraying direction from the position where the first nozzle is located in the normal mode, A flat plate is placed 40 cm away from the first spray nozzle, and when the aerosol agent is sprayed in the normal mode, the area of the aerosol agent that adheres to the flat plate is denoted as Sa. When a flat plate is placed 40 cm away from the second nozzle, and the aerosol agent is sprayed in the long mode, the area of the aerosol agent adhering to the flat plate is denoted as Sb. The following relationship (1): Sa / Sb ≥ 1.05 ···(1) Satisfying the conditions, Let Va be the amount sprayed per unit time (10 seconds) when the aerosol agent is sprayed in the normal mode described above. When the amount of aerosol sprayed per unit time (10 seconds) in the long mode is denoted as Vb, The following relationship (2): 1.0 ≦ Va / Vb ≦ 2.5 (2) The objective is to be configured to satisfy the following conditions.
[0010] In the aerosol product of this configuration, if the area (Sa) of the adhesion region of the aerosol agent in the normal mode under the above specific conditions is large, the aerosol agent can be adhered over a wide range in the normal mode. On the other hand, if the area (Sb) of the adhesion region of the aerosol agent in the long mode is small, the aerosol agent can be adhered over a narrow range in the long mode and local treatment can be performed. The ratio (Sa / Sb) of the area (Sa) to the area (Sb) is related to the versatility of being able to spray over a wide range and being able to spray over a narrow range. When Sa / Sb is less than 1.05, there is almost no difference in the adhesion region of the aerosol agent between the normal mode and the long mode. In other words, there is almost no difference in the spraying range, and the versatility is low. On the other hand, the ratio (Va / Vb) of the spraying amount (Va) per unit time (10 seconds) when the aerosol agent is sprayed in the normal mode and the spraying amount (Vb) per unit time (10 seconds) when the aerosol agent is sprayed in the long mode is related to the difference in the feeling of use such as feeling a difference in the laboriousness of the treatment, such as moving the handle significantly to expand the spraying treatment surface or taking time for the spraying treatment, when spraying in the normal mode and when spraying in the long mode. In order to enhance the versatility while suppressing the difference in the feeling of use, it is important that both Sa / Sb and Va / Vb satisfy predetermined conditions. According to the aerosol product of this configuration, since Sa / Sb is set to 1.05 or more and Va / Vb is set within an appropriate range, it is possible to enhance the versatility of being able to spray over a wide range and being able to spray over a narrow range while suppressing the difference in the feeling of use when switching between the normal mode and the long mode.
[0011] In the aerosol product according to the present invention, Vb, which is the spraying amount per unit time (10 seconds) when the aerosol agent is sprayed in the long mode, is preferably 10 g / 10 seconds or more.
[0012] According to the aerosol product of this configuration, since Vb, which is the spraying amount per unit time (10 seconds) when the aerosol agent is sprayed in the long mode, is set to 10 g / 10 seconds or more, the aerosol agent can be surely adhered even to a distant spraying target.
[0013] In the aerosol product according to the present invention, The length of the long nozzle is preferably 60 mm or more.
[0014] According to the aerosol product of this configuration, since the length of the long nozzle is set to 60 mm or more, for example, the aerosol agent can be locally injected and treated through gaps such as window frames and sashes, or between furniture and walls, or the aerosol agent can be focused on the injection target while suppressing the adhesion of the aerosol agent to the periphery of the injection target without the user getting too close to the injection target.
[0015] In the aerosol product according to the present invention, The diameter of the first injection port is preferably 0.8 to 1.5 mm.
[0016] According to the aerosol product of this configuration, since the diameter of the first injection port is set within an appropriate range, the aerosol agent can be adhered to a wide range with an appropriate injection amount to the injection target.
[0017] In the aerosol product according to the present invention, The diameter of the second injection port is preferably 1.0 to 1.8 mm.
[0018] According to the aerosol product of this configuration, since the diameter of the second injection port is set within an appropriate range, it is possible to suppress the decrease in the injection force of the aerosol agent and suppress the excessive diffusion of the aerosol agent. As a result, the aerosol agent can be surely adhered to the injection target with an appropriate injection amount, and it becomes easy to aim at the injection target.
[0019] In the aerosol product according to the present invention, When the diameter of the first injection port is D1, and the diameter of the second injection port is D2, the following relational expression (3): 1.2 ≤ D2 / D1 ≤ 2.5 ···(3) It is preferable that the configuration satisfies the following conditions.
[0020] With this configuration of aerosol product, the ratio (D2 / D1) of the diameter of the second nozzle (D2) to the diameter of the first nozzle (D1) is set within an appropriate range, thus reliably minimizing the difference in user experience when switching between normal mode and long mode.
[0021] In the aerosol product according to the present invention, Let the length of the long nozzle be L. When the diameter of the second injection port is D2, The following relationship (4): 56 ≤ L / D2 ≤ 140 ···(4) It is preferable that the configuration satisfies the following conditions.
[0022] With this aerosol product configuration, the ratio (L / D2) of the length (L) of the long nozzle to the diameter (D2) of the second spray port is set within an appropriate range. This suppresses the increase in flow resistance of the aerosol agent within the long nozzle while preventing excessive diffusion of the aerosol agent. As a result, the aerosol agent can be reliably applied to the target with an appropriate amount of spray, and it becomes easier to aim at the target.
[0023] In the aerosol product according to the present invention, It is preferable to use it for the control of pests and mites.
[0024] This aerosol product configuration can control pests and mites, making it suitable for use in a variety of situations and thus a highly versatile product. [Brief explanation of the drawing]
[0025] [Figure 1] Figure 1 is an explanatory diagram of an aerosol product equipped with the two-way spray mechanism of the present invention. [Figure 2]Figure 2 is an explanatory diagram of an aerosol product equipped with the replaceable spray mechanism of the present invention. [Figure 3] Figure 3 is a model diagram showing the spray state of the aerosol agent when the aerosol product of the present invention is sprayed towards an object. [Modes for carrying out the invention]
[0026] The present invention will be described below with reference to the drawings. However, the present invention is not intended to be limited to the embodiments and configurations described below or shown in the drawings.
[0027] <Overview of Aerosol Products> Figure 1 is an explanatory diagram of an aerosol product 1 equipped with the two-way type spray mechanism 10A, 10B of the present invention. Figure 2 is an explanatory diagram of an aerosol product 1 equipped with the replaceable type spray mechanism 10C, 10D of the present invention. The aerosol product 1 shown in Figures 1 and 2 is composed of an aerosol container 2 and spray mechanisms 10A to 10D that are attached to the aerosol container 2.
[0028] <Aerosol container> The aerosol container 2 is a pressure-resistant container for pressurized filling of an aerosol agent containing an aerosol concentrate and a propellant. In the aerosol container 2, a spray valve 3 is incorporated into the upper part of the aerosol container 2, and a stem 4 protrudes upward. By pushing the stem 4, the spray valve 3 opens and the aerosol agent is ejected from inside the aerosol container 2 through the stem 4. As the spray valve 3, either a normal spray valve capable of continuous spraying or a metered spray valve capable of spraying a fixed amount with a single push can be used. When a normal spray valve is used as the spray valve 3, the amount of aerosol agent to be filled is preferably 50 to 500 g, in relation to the spray volume described later, and the continuous spraying time (cumulative spraying time) of the aerosol agent is preferably 15 to 600 seconds. When a metered spray valve is used as the spray valve 3, it is preferable that the spray volume per push be 0.1 to 5.0 mL.
[0029] The full capacity of the aerosol container 2 is not particularly limited, but is preferably 10 to 750 mL, and more preferably 80 to 600 mL. The diameter of the aerosol container 2 is preferably 80 mm or less, more preferably 40 to 75 mm, and even more preferably 50 to 70 mm. By having the diameter of the aerosol container 2 within the above range, the aerosol product 1 can be sprayed more reliably and stably until the end of its use. In this specification, "diameter" of the aerosol container 2 means the outer diameter of the aerosol container 2. The thickness (wall thickness) of the aerosol container 2 is approximately 0.1 to 1.0 mm.
[0030] The material of the aerosol container 2 is not particularly limited; it is commonly made of metal such as aluminum or tinplate, or resin such as polyethylene terephthalate, but it may also be made of glass or other materials. Furthermore, the appearance of the aerosol container 2 may be transparent, translucent, or opaque.
[0031] <Aerosol concentrate> The aerosol concentrate is a component that makes up the aerosol product along with the propellant. The aerosol concentrate is filled into the aerosol container 2 along with the propellant when preparing the aerosol product. The aerosol concentrate contains the pharmaceutical agent.
[0032] The chemical contains an insecticide component and a solvent. It may also contain other components such as antibacterial components, antiviral components, antifungal components, and fragrance / deodorizing components. The chemical can be used individually, but it can also be used as a mixture of two or more components. For example, two or more insecticide components can be mixed and used, or one or more insecticide components can be mixed with one or more antifungal components.
[0033] The pest control ingredients are not particularly limited, but include pyrethroid compounds such as transfluthrin, metofluthrin, profluthrin, terrarethrin, flamethrin, monfluorothrin, dimefluthrin, mepafluthrin, heptafluthrin, phenothrin, cyphenothrin, permethrin, cypermethrin, cyfluthrin, bifenthrin, fenpropathrin, tralomethrin, etofenprox, imiprothrin, empenthrin, allethrin, phthalthrin, prallethrin, resmethrin, and natural pyrethrins; silicon compounds such as silafluofen; organophosphorus compounds such as dichlorvos and fenitrothion; carbamate compounds such as propoxur; neonicotinoid compounds such as dinotefuran, imidacloprid, and clothianidin; and fipro Examples include yl, indoxacarb, methoxadiazone, brofuranilide, flubendiamide, fluxamethamide, peppermint oil, lavender oil, orange oil, fennel oil, cinnamon oil, clove oil, turpentine oil, eucalyptus oil, cypress oil, jasmine oil, neroli oil, peppermint oil, bergamot oil, butigren oil, lemon oil, lemongrass oil, cinnamon oil, citronella oil, geranium oil, citral, l-menthol, citronellyl acetate, cinnamic aldehyde, terpineol, nonyl alcohol, cis-jasmone, limonene, linalool, 1,8-cineole, geraniol, α-pinene, p-menthane-3,8-diol, eugenol, menthyl acetate, thymol, benzyl benzoate, benzyl salicylate, etc. These pest control components can be used individually, but they can also be used as a mixture of two or more. Furthermore, if optical isomers based on chiral carbons or geometric isomers based on double bonds exist in the above-mentioned pest control components, each of these, or any mixture thereof, is also included in the pest control components.
[0034] The pest control ingredients can be appropriately selected according to the type of target pest. Examples of target pests include mosquitoes, flies, moths, bees, stink bugs, cockroaches, ants, spiders, pillbugs, mites, lice, centipedes, caterpillars, millipedes, horseflies, gnats, drain flies, termites, midges, leafhoppers, bark beetles, ground beetles, earwigs, silverfish, longhorn beetles, carpet beetles, booklice, clothes moths, and clothes moths. For flying insects such as mosquitoes, flies, moths, bees, horseflies, gnats, midges, leafhoppers, drain flies, clothes moths, and clothes moths, transfluthrin, metofluthrin, profluthrin, phthalthrin, prallethrin, and monfluorothrin are suitable. Furthermore, for crawling insects such as cockroaches, stink bugs, ants, spiders, pill bugs, mites, lice, centipedes, caterpillars, millipedes, termites, woodworms, ground beetles, earwigs, and silverfish, phthalthrin, prallethrin, imiprothrin, cyfluthrin, permethrin, phenothrin, transfluthrin, and metofluthrin are suitable.
[0035] The antibacterial components are not particularly limited, but include phenolic antibacterial components such as isopropylmethylphenol (IPMP), carvacrol, thymol, triclosan, methylparaben, ethylparaben, propylparaben, butylparaben, 4-chloro-3,5-dimethylphenol, orthophenylphenol, o-cresol, m-cresol, and p-cresol; benzalkonium salts such as benzalkonium chloride, benzalkonium methosulfate, and benzalkonium organic acid salts; benzethonium salts such as benzethonium chloride, benzethonium methosulfate, and benzethonium organic acid salts; cetylpyridinium salts such as cetylpyridinium chloride, cetylpyridinium methosulfate, and cetylpyridinium organic acid salts; didecyldimethylammonium chloride, didecyldimethylammonium methosulfate, and other didecyldimethylammonium salts; dilauryldimethylammonium chloride, dilauryldimethylammonium methosulfate, and other dilauryldimethylammonium salts; distearyldimethylammonium chloride; and distearyldimethylammonium Cationic surfactant-based antimicrobial components such as distearyldimethylammonium salts including ammonium methosulfate, and 1,4-bis[3,3'-(1-decylpyridinium)methyloxy]butanedibromide, 1,4-bis[3,3'-(1-decylpyridinium)methyloxy]butanedichloride, 1,4-bis[3,3'-(1-decylpyridinium)methyloxy]butanedimethosulfate, and other 1,4-bis[3,3'-(1-decylpyridinium)methyloxy]butane salts, biguanide-based antimicrobial components, tebuconazole, enyl Azole antibacterial components such as conazole, fruit seed extract antibacterial components such as grapefruit seed extract, persimmon seed extract, and grape seed extract, glycerin mono fatty acid ester antibacterial components such as monolaurin, monocaprin, and monocaprylin, chlorhexidine-based antibacterial components such as chlorhexidine salts such as chlorhexidine gluconate and chlorhexidine hydrochloride, and chlorhexidine, octadecyldimethyl(3-triethoxysilylpropyl)ammonium chloride, dodecyldimethyl(3-triethoxysilylpropyl)ammonium chloride,Dodecyldiisopropyl(3-triethoxysilylpropyl)ammonium chloride, tetradecyldimethyl(3-triethoxysilylpropyl)ammonium chloride, tetradecyldiethyl(3-triethoxysilylpropyl)ammonium chloride, tetradecyldi-n-propyl(3-triethoxysilylpropyl)ammonium chloride, pentadecyldimethyl(3-triethoxysilylpropyl)ammonium chloride, pentadecyldiethyl(3-triethoxysilylpropyl)ammonium chloride, pentadecyldi-n-propyl(3-triethoxysilylpropyl)ammonium chloride, hexadecyldimethyl(3-triethoxysilylpropyl)ammonium chloride, hexadecyldiethyl(3-triethoxysilylpropyl)ammonium chloride Examples include silicon-based antimicrobial components such as ammonium chloride, hexadecyldi-n-propyl(3-triethoxysilylpropyl)ammonium chloride, octadecyldiethyl(3-triethoxysilylpropyl)ammonium chloride, and octadecyldi-n-propyl(3-triethoxysilylpropyl)ammonium chloride; carboxylic acid-based antimicrobial components such as benzoic acid, salicylic acid, sorbic acid, ethylenediaminetetraacetic acid (EDTA), glycine, alkyldiethylaminoglycine, and polylysine, or their salts; and other silver-based antimicrobial components such as dehydroacetic acid, chloramine, 3-iodo-2-propyl-N-butylcarbamate (IPBC), phenoxyethanol, and silver zeolite; zinc pyrithione, thiamine lauryl sulfate, milt protein, hydroxyalkyl chitosan, or their salts. These antimicrobial components can be used individually or as a mixture of two or more.
[0036] The virus control ingredients are not particularly limited, but include phenolic virus control ingredients such as isopropylmethylphenol (IPMP), carvacrol, thymol, triclosan, methylparaben, ethylparaben, propylparaben, butylparaben, 4-chloro-3,5-dimethylphenol, orthophenylphenol, o-cresol, m-cresol, and p-cresol, benzalkonium salts such as benzalkonium chloride, benzalkonium methosulfate, and benzalkonium organic acid salts, benzethonium chloride, and benzethonium methosulfate. Benzethonium salts such as rufete, benzethonium organic salts, cetylpyridinium chloride, cetylpyridinium methosulfate, cetylpyridinium salts such as cetylpyridinium organic salts, didecyldimethylammonium chloride, didecyldimethylammonium methosulfate, dilauryldimethylammonium chloride, dilauryldimethylammonium methosulfate, distearyldimethylammonium chloride, distearyldimethylammonium methosulfate Cationic surfactant-based virus control components such as distearyldimethylammonium salts such as sulfates, and 1,4-bis[3,3'-(1-decylpyridinium)methyloxy]butanedibromide, 1,4-bis[3,3'-(1-decylpyridinium)methyloxy]butanedichloride, 1,4-bis[3,3'-(1-decylpyridinium)methyloxy]butanedimethosulfate, and other 1,4-bis[3,3'-(1-decylpyridinium)methyloxy]butane salts, biguanide-based virus control components, tebuconazole, enilconazole, etc. Zole-based virus control ingredients, fruit seed extract-based virus control ingredients such as grapefruit seed extract, persimmon seed extract, and grape seed extract, glycerin mono fatty acid ester-based virus control ingredients such as monolaurin, monocaprin, and monocaprylin, chlorhexidine-based virus control ingredients such as chlorhexidine salts such as chlorhexidine gluconate and chlorhexidine hydrochloride, and chlorhexidine, octadecyldimethyl(3-triethoxysilylpropyl)ammonium chloride, dodecyldimethyl(3-triethoxysilylpropyl)ammonium chloride,Dodecyldiisopropyl(3-triethoxysilylpropyl)ammonium chloride, tetradecyldimethyl(3-triethoxysilylpropyl)ammonium chloride, tetradecyldiethyl(3-triethoxysilylpropyl)ammonium chloride, tetradecyldi-n-propyl(3-triethoxysilylpropyl)ammonium chloride, pentadecyldimethyl(3-triethoxysilylpropyl)ammonium chloride, pentadecyldiethyl(3-triethoxysilylpropyl)ammonium chloride, pentadecyldi-n-propyl(3-triethoxysilylpropyl)ammonium chloride, hexadecyldimethyl(3-triethoxysilylpropyl)ammonium chloride, hexadecyldiethyl(3-triethoxysilylpropyl)ammonium chloride Examples of antiviral agents include silicon-based virus control components such as hexadecyldi-n-propyl(3-triethoxysilylpropyl)ammonium chloride, octadecyldiethyl(3-triethoxysilylpropyl)ammonium chloride, and octadecyldi-n-propyl(3-triethoxysilylpropyl)ammonium chloride; carboxylic acid-based antiviral components such as benzoic acid, salicylic acid, sorbic acid, ethylenediaminetetraacetic acid (EDTA), glycine, alkyldiethylaminoglycine, and polylysine, or their salts; and other silver-based antiviral components such as dehydroacetic acid, chloramine, 3-iodo-2-propyl-N-butylcarbamate (IPBC), phenoxyethanol, and silver zeolite; zinc pyrithione, thiamine lauryl sulfate, milt protein, hydroxyalkyl chitosan, or their salts. These antiviral components can be used individually or as a mixture of two or more.
[0037] The mold control ingredients are not particularly limited, but include phenolic mold control ingredients such as isopropylmethylphenol (IPMP), carvacrol, thymol, triclosan, methylparaben, ethylparaben, propylparaben, butylparaben, 4-chloro-3,5-dimethylphenol, orthophenylphenol, o-cresol, m-cresol, and p-cresol; benzalkonium salts such as benzalkonium chloride, benzalkonium methosulfate, and benzalkonium organic acid salts; benzethonium chloride; and benzethonium methosulfate. Benzethonium salts such as rufete, benzethonium organic salts, cetylpyridinium chloride, cetylpyridinium methosulfate, cetylpyridinium organic salts such as cetylpyridinium salts, didecyldimethylammonium chloride, didecyldimethylammonium methosulfate and other didecyldimethylammonium salts, dilauryldimethylammonium chloride, dilauryldimethylammonium methosulfate and other dilauryldimethylammonium salts, distearyldimethylammonium chloride, distearyldimethylammonium Cationic surfactant-based mold control ingredients such as distearyldimethylammonium salts including ummethosulfate, and 1,4-bis[3,3'-(1-decylpyridinium)methyloxy]butanedibromide, 1,4-bis[3,3'-(1-decylpyridinium)methyloxy]butanedichloride, 1,4-bis[3,3'-(1-decylpyridinium)methyloxy]butanedimethosulfate, and other 1,4-bis[3,3'-(1-decylpyridinium)methyloxy]butanedimethosulfate, biguanide-based mold control ingredients, tebuconazole, enylconazole Azole-based fungicides such as ammonium compounds, fruit seed extract-based fungicides such as grapefruit seed extract, persimmon seed extract, and grape seed extract, glycerin mono fatty acid ester-based fungicides such as monolaurin, monocaprin, and monocaprylin, chlorhexidine-based fungicides such as chlorhexidine salts such as chlorhexidine gluconate and chlorhexidine hydrochloride, and chlorhexidine, octadecyldimethyl(3-triethoxysilylpropyl)ammonium chloride, dodecyldimethyl(3-triethoxysilylpropyl)ammonium chloride,Dodecyldiisopropyl(3-triethoxysilylpropyl)ammonium chloride, tetradecyldimethyl(3-triethoxysilylpropyl)ammonium chloride, tetradecyldiethyl(3-triethoxysilylpropyl)ammonium chloride, tetradecyldi-n-propyl(3-triethoxysilylpropyl)ammonium chloride, pentadecyldimethyl(3-triethoxysilylpropyl)ammonium chloride, pentadecyldiethyl(3-triethoxysilylpropyl)ammonium chloride, pentadecyldi-n-propyl(3-triethoxysilylpropyl)ammonium chloride, hexadecyldimethyl(3-triethoxysilylpropyl)ammonium chloride, hexadecyldiethyl(3-triethoxysilylpropyl)ammonium chloride Examples of mold control agents include silicon-based mold control agents such as hexadecyldi-n-propyl(3-triethoxysilylpropyl)ammonium chloride, octadecyldiethyl(3-triethoxysilylpropyl)ammonium chloride, and octadecyldi-n-propyl(3-triethoxysilylpropyl)ammonium chloride; carboxylic acid-based mold control agents such as benzoic acid, salicylic acid, sorbic acid, ethylenediaminetetraacetic acid (EDTA), glycine, alkyldiethylaminoglycine, and polylysine, or their salts; other silver-based mold control agents such as dehydroacetic acid, chloramine, 3-iodo-2-propyl-N-butylcarbamate (IPBC), phenoxyethanol, and silver zeolite; zinc pyrithione, thiamine lauryl sulfate, milt protein, hydroxyalkyl chitosan or its salts; and antifungal fragrances. These mold control agents can be used individually or as a mixture of two or more.
[0038] While not particularly limited, fragrance and deodorizing components can be used, such as those that mask unpleasant odors or transform them into pleasant scents through harmonizing effects, including fragrances and essential oils. These fragrance and deodorizing components can be used individually or as a mixture of two or more. Examples of fragrances include hydrocarbon fragrances such as d-limonene, α-pinene, β-pinene, p-cymene, indene, and caryophyllene; menthol such as linalool, geraniol, citronellol, and l-menthol; ethyl linalool, borneol, anise alcohol, β-phenethyl alcohol, p-menthane-3,8-diol, α-terpineol, γ-terpineol, terpineol, 1-hexenol, cis-3-hexen-1-ol, and tetrathol. Alcohol-based fragrances such as lahydrogeraniol, santalinol, cinnamyl alcohol, cedrol; ether-based fragrances such as caraxolide, β-naphthyl methyl ether, 1,8-cineole, ambroxide, p-crezyl methyl ether; phenol-based fragrances such as anethole, eugenol, isoeugenol, vanillin, ethyl vanillin; octanal, nonanal, undecylaldehyde, undecanal, decylaldehyde, n-butyraldehyde, isobutyraldehyde, he Aldehydes such as xylaldehyde, citral, citronellal, benzaldehyde, cinnamic aldehyde, anisaldehyde, cuminaldehyde, adoxal, amyl cinnamic aldehyde, cyclamenaldehyde, musk ketone, carvone, menthone, camphor, camphor, acetophenone, butyrophenone, tonalide, α-ionone, β-ionone, α-methylionone, β-methylionone, α-isomethylionone, β-isomethylionone, γ-methylionone Ketone fragrances such as γ-isomethyl ionone, damascone, α-damascone, β-damascone, acetylcedrene, cashmeran, cis jasmone, dihydrojasmone, etc., lactone fragrances such as γ-butyllactone, γ-nonalactone, γ-decalactone, γ-undecalactone, coumarin, ambredlid, jasmolactone, etc., geranyl formate, octyl acetate, geranyl acetate, benzyl acetate, cinnamyl acetate, tetrahydrogeranyl acetate,Menthyl acetate, linalyl acetate, butyl propionate, benzyl acetate, methyl benzoate, allyl hexanoate, allyl heptanoate, allyl cyclohexanepropionate, allyl amyl glycolate, amyl valerianate, amyl salicylate, isoamyl acetate, butyl acetate, ethyl butyrate, acetyl eugenol, isoamyl salicylate, allyl caproate, ethyl caproate, ethyl propionate, ethyl acetacetate, methyl salicylate Examples include ester-based fragrances such as tronellyl acetate, citronellyl formate, cinnamyl acetate, stearyl acetate, stearyl propionate, cedyl acetate, and terpinyl acetate; acetal-based fragrances such as amyl cinnamic aldehyde dimethyl acetal and citral dimethyl acetal; indole, geranyl nitrile, citronellyl nitrile, acetaldehyde phenylethylpropyl acetate, tesalon, aurantiol, and linalool oxide. These fragrances can be used individually or as mixtures of two or more. These are known as synthetic fragrances or extracted fragrances.
[0039] Examples of essential oils include peppermint oil, orange oil, lemon oil, lavender oil, peppermint oil, eucalyptus oil, citronella oil, lime oil, yuzu oil, jasmine oil, cypress oil, green tea essential oil, neroli oil, geranium oil, petitgrain oil, lemongrass oil, cinnamon oil, lemon eucalyptus oil, thyme oil, perilla oil, pine oil, rose oil, rosemary oil, camphor oil, aromatic oil, clary sage oil, sandalwood oil, spearmint oil, star anise oil, lavandin oil, oakmoss oil, octopus oil, patchouli oil, tonka bean tincture, turpentine oil, alligator bean tincture, basil oil, nutmeg oil, clove oil, boa de roxene. Examples of essential oils include rose oil, cananga oil, cardamom oil, cassia oil, cedarwood oil, mandarin oil, tangerine oil, anise oil, bay oil, coriander oil, elemi oil, fennel oil, galbanum oil, cypress oil, vetiver oil, bergamot oil, ylang-ylang oil, grapefruit oil, abies oil, aquatic oil, almond oil, angelica root oil, pail oil, mint oil, perch oil, boa rose oil, kayabuchi oil, gananga oil, capsicum oil, caraway oil, celery oil, cognac oil, cumin oil, zill oil, estgolan oil, garlic oil, ginger oil, hop oil, and sage oil. The above essential oils can be used individually, but they can also be used as mixtures of two or more.
[0040] The amount of the drug to be included is not particularly limited as long as it is in a quantity that can fully exert the efficacy of the drug. Preferably, it is 0.1 to 100 w / v%, more preferably 0.5 to 90 w / v%, even more preferably 1.0 to 80 w / v%, particularly preferably 3.0 to 75 w / v%, even more preferably 8.0 to 70 w / v%, and most preferably 10.0 to 70 w / v% in the aerosol concentrate.
[0041] Solvents included in the aerosol concentrate include lower alcohols with 2-3 carbon atoms such as ethanol and isopropanol (IPA), hydrocarbon solvents such as n-paraffin and isoparaffin, higher fatty acid esters with 16-20 carbon atoms such as isopropyl myristate (IPM), glycol ether solvents with 3-10 carbon atoms, ketone solvents, glycerin, and ethylene glycol. These solvents can be used individually or as mixtures of two or more.
[0042] In addition to the above components, the aerosol concentrate may also contain antioxidants such as butylhydroxytoluene, stabilizers such as citric acid and ascorbic acid, antistatic agents, defoaming agents, and excipients as appropriate.
[0043] The aerosol product of the present invention may also employ an aqueous formulation from the viewpoint of reducing the risk of fire as much as possible. In this case, the amount of water contained in the aerosol concentrate is preferably about 10 to 50 v / v%, and a small amount of nonionic surfactant may be added as a solubilizing aid, within a range that does not affect the spray pattern of the spray particles. Examples of nonionic surfactants include ethers such as polyoxyethylene alkyl ethers, polyoxyethylene alkylphenyl ethers, polyoxyethylene polyoxypropylene alkyl ethers, and polyoxyethylene alkylamino ethers, fatty acid esters such as polyethylene glycol fatty acid esters, polyoxyethylene sorbitan fatty acid esters, and polyoxyethylene glycerin fatty acid esters, polyoxyethylene styrene phenol, and polyalkanolamides of fatty acids, among which ethers are preferred. The above nonionic surfactants can be used individually, but they can also be used as a mixture of two or more.
[0044] The viscosity of the aerosol concentrate at 20°C is preferably adjusted to 1.0 to 50.0 cP, more preferably to 1.1 to 30.0 cP, even more preferably to 1.2 to 20.0 cP, and particularly preferably to 1.5 to 15.0 cP. The viscosity of the aerosol concentrate was measured by adjusting the aerosol concentrate in a beaker to 20°C in a constant temperature water bath (manufactured by IWAKI), and using a B-type viscometer (manufactured by Tokyo Keiki Co., Ltd., rotor No. 1) at the above temperature under the following measurement conditions: rotation speed of 60 rpm and measurement time of 30 seconds.
[0045] <propellant> Examples of propellants used for spraying aerosol concentrates include liquefied petroleum gas (LPG), n-pentane, isopentane, dimethyl ether (DME), and hydrofluoroolefins, as well as nitrogen gas, carbon dioxide, nitrous oxide, and compressed air. The propellant is preferably composed of a liquefied gas, and more preferably of LPG. The propellant can be used individually, or as a mixture of two or more.
[0046] In the aerosol product of the present invention, the volume ratio (a / b) of the aerosol concentrate (a) and the propellant (b) filled in the aerosol container 2 is not particularly limited, but (a / b) ≤ 60 / 40 is preferred, 1 / 99 ≤ (a / b) ≤ 60 / 40 is more preferred, and 3 / 97 ≤ (a / b) ≤ 55 / 45 is even more preferred.
[0047] When the aerosol product of the present invention is used for the purpose of exterminating spiders (for example, golden orb-weaver spiders, long-bodied orb-weaver spiders, black widow spiders, large house spiders, grass spiders, redback spiders, etc.) and preventing them from building nests, it is preferable that the aerosol agent contains one or more components selected from pyrethroid-based and organosilicon-based insecticide components, a higher fatty acid ester compound, a paraffin-based solvent, and a propellant.
[0048] Examples of pest control ingredients include pyrethroid insecticides such as cyfluthrin, phthalthrin, phenothrin, permethrin, cyphenothrin, cypermethrin, tralomethrin, fenpropathrin, resmethrin, allethrin, prallethrin, flamethrin, imiprothrin, empenthrin, transfluthrin, metofluthrin, profluthrin, and etofenprox, as well as organosilicon insecticides such as silafluofen. Cyfluthrin has excellent insecticidal efficacy and persistence, while transfluthrin has relatively high volatility and excellent insecticidal effect; therefore, it is preferable to use cyfluthrin and transfluthrin in combination.
[0049] The above-mentioned pyrethroid and organosilicon insecticide components exhibit high control efficacy against spiders. The amount of these insecticide components included in the aerosol can be appropriately determined considering the purpose of use and duration of use, for example, approximately 0.01 to 30.0 w / v% in the aerosol can be considered appropriate.
[0050] Higher fatty acid ester compounds are suitable for use as spider nest-building prevention components (web-building inhibiting components). Preferred higher fatty acid ester compounds are ester compounds of higher fatty acids with 14 to 18 carbon atoms and branched saturated alcohols with 14 to 18 carbon atoms. Specifically, examples include isocetyl stearate, isocetyl isostearate, isostearyl palmitate, and isocetyl myristate. These compounds exhibit high nest-building prevention effects while maintaining a liquid state at room temperature due to their low volatility, thus contributing to increased durability by coating the insect control component. In particular, isocetyl stearate is preferred because it exhibits excellent nest-building prevention effects. The appropriate amount of higher fatty acid ester compound to be blended is approximately 1.0 to 30 times the amount of the insect control component.
[0051] As a paraffinic solvent, isoparaffin is preferable to n-paraffin. Although n-paraffinic solvents are generally more common, isoparaffinic solvents are more suitable in terms of compatibility with higher fatty acid ester compounds (for example, branched saturated alkyl ester compounds with 14 to 18 carbon atoms). Other organic solvents, such as lower alcohols like ethanol and isopropanol, glycols like propylene glycol, 1,3-butylene glycol, 1,4-butylene glycol, diethylene glycol, dipropylene glycol, and hexylene glycol, ether compounds based on these glycols, ketone solvents, and ester solvents, can be appropriately blended.
[0052] Preferably, the propellant used is dimethyl ether, liquefied petroleum gas (LPG), compressed gas (nitrogen gas, carbon dioxide, nitrous oxide, compressed air, etc.), or a mixture thereof.
[0053] <Injection mechanism> Figure 1(a) shows the state of the two-way spray mechanism 10A in the aerosol product 1A(1) in normal mode. Figure 1(b) shows the state of the same spray mechanism 10A in long mode.
[0054] The two-way spray mechanism 10A shown in Figures 1(a) and (b) comprises an actuator 20 and an operating mechanism 40, and is mounted on the top of the aerosol container 2.
[0055] <Actuator> The actuator 20 functions as an operating part for spraying an aerosol agent and comprises an actuator body 21, a spray unit 23, and a long nozzle 35.
[0056] The actuator body 21 is fitted to the stem 4 at its base end and is formed in an L-shaped bend so as to engage with the spraying section 23 at its tip end. In the actuator body 21, an L-shaped flow path 25 is formed in the portion from the base end fitted to the stem 4 to the engaging section 21a that engages with the spraying section 23 at the tip end, and the aerosol agent ejected from the aerosol container 2 via the stem 4 is pressurized and delivered to the spraying section 23 through the L-shaped flow path 25.
[0057] The spray unit 23 is pivotally attached to the tip of the actuator body 21 so as to be rotatable around an axis extending horizontally when the aerosol container 2 is placed on a horizontal surface (hereinafter referred to as the "rotation axis"), perpendicular to the spray direction when spraying the aerosol agent. The spray unit 23 has a partial circumferential surface that slides against the engaging portion 21a of the actuator body 21 when it rotates. The spray unit 23 has a first spray passage 26 and a second spray passage 27 formed in directions perpendicular to the rotation axis of the spray unit 23, with a predetermined phase difference (90° in this example) between them and the aerosol agent not being able to pass through them independently.
[0058] In the injection unit 23, the normal mode position and the long mode position can be switched by rotating the injection unit 23 in one direction and the other direction around its pivot axis within a predetermined angle range (90° in this example). Here, the normal mode position is the position where the upstream opening in the flow direction of the first injection passage 26 and the downstream opening in the flow direction of the L-shaped passage 25 in the actuator body 21 meet (see Figure 1(a)). On the other hand, the long mode position is the position where the upstream opening in the flow direction of the second injection passage 27 and the downstream opening in the flow direction of the L-shaped passage 25 in the actuator body 21 meet (see Figure 1(b)).
[0059] As shown in the enlarged view of the main part in Figure 1(a), the injection unit 23 has a first injection port 31 that opens on the downstream side in the flow direction of the first injection passage 26. The first injection port 31 is formed on the tip side in the protruding direction of the projection 23a that protrudes from the partial circumferential surface of the injection unit 23.
[0060] <Long nozzle> As shown in Figure 1(b), a long nozzle 35 is integrally connected to the injection unit 23. The long nozzle 35 is composed of a sheath-shaped sleeve portion 35a that extends from the injection unit 23 in communication with the second injection passage 27 on the downstream side in the flow direction of the second injection passage 27, and a slender cylindrical straw portion 35b whose base end is fitted to the sleeve portion 35a and connected to the sleeve portion 35a in a straight line. As shown in the enlarged view of the main part in Figure 1(b), the straw portion 35b has a second injection port 32 that opens on the downstream side (tip side) in the flow direction.
[0061] The actuator 20 is configured such that, for example, by applying torque to the injection unit 23 via the long nozzle 35 in one direction and in other directions around the rotation axis of the injection unit 23, the injection unit 23 is rotated between a normal mode position and a long mode position, thereby enabling switching between a normal mode and a long mode. Here, the normal mode is an injection mode in which the aerosol agent is sprayed through the first injection port 31 provided on the injection unit 23, as shown in Figure 1(a). On the other hand, the long mode is an injection mode in which the aerosol agent is sprayed through the second injection port 32 provided on the long nozzle 35, which is arranged to extend in the injection direction from the position where the first injection port 31 is located in the normal mode, as shown in Figure 1(b).
[0062] The operating mechanism 40 can be any mechanism that can apply a pressing force to the part of the actuator body 21 corresponding to the upper part of the stem 4, and is not particularly limited. For example, the operating force of pressing the spray button 41 can be used as the pressing force applied to the part of the actuator body 21 corresponding to the upper part of the stem (button-type operating mechanism). However, it is not limited to a button-type operating mechanism, and a mechanism that converts the operating force of pulling the trigger into a pressing force applied to the part of the actuator body 21 corresponding to the upper part of the stem 4 (trigger-type operating mechanism) can also be adopted.
[0063] In the two-way type spray mechanism 10A shown in Figures 1(a) and (b), when the spray button 41 of the operating mechanism 40 is pressed in the normal mode shown in Figure 1(a) to press the actuator body 21, the aerosol agent ejected from the aerosol container 2 via the stem 4 is sprayed over a relatively wide area from the first spray port 31 via the L-shaped flow path 25 and the first spray flow path 26. Also in the two-way type spray mechanism 10A, when the spray button 41 of the operating mechanism 40 is pressed in the long mode shown in Figure 1(b) to press the actuator body 21, the aerosol agent ejected from the aerosol container 2 via the stem 4 is sprayed over a relatively narrow area from the second spray port 32 via the L-shaped flow path 25, the second spray flow path 27 and the long nozzle 35.
[0064] <Length of the long nozzle> In the two-way type injection mechanism 10A shown in Figures 1(a) and (b), the "length of the long nozzle" of the present invention refers to the length indicated by the arrow labeled "L" in Figure 1(b). That is, in Figure 1(b), the position where the first injection port 31 is located in the normal mode shown in Figure 1(a) is taken as the reference position (the position indicated by the arrow labeled "P" in Figure 1(b)), and the length (L) of the portion of the long nozzle 35 that extends in the injection direction from the reference position (P) in the long mode shown in Figure 1(b) corresponds to the "length of the long nozzle" of the present invention in the case of the two-way type injection mechanism 10A. In the case of the two-way type injection mechanism 10A shown in Figures 1(a) and (b), the total length of the long nozzle 35 from the base end of the sleeve portion 35a to the tip of the straw portion 35b (the length indicated by the arrow with the symbol "L'" in Figure 1(b)) does not correspond to the "length of the long nozzle" of the present invention. Rather, the position where the first injection port 31 is located in the normal mode shown in Figure 1(a) is taken as the reference position (P), and the length of the portion that functions substantially as a long nozzle compared to the normal mode (the length indicated by the arrow with the symbol "L" in Figure 1(b)), that is, the length of the portion of the long nozzle 35 from the position corresponding to the reference position (P) of the sleeve portion 35a to the tip of the straw portion 35b, is defined as the "length of the long nozzle" of the present invention.
[0065] Figure 1(c) is a diagram showing the two-way type spray mechanism 10B with a nozzle tip part in normal mode in aerosol product 1B(1). Figure 1(d) is a diagram showing the same spray mechanism 10B in long mode. The two-way type spray mechanism 10B with a nozzle tip part shown in Figures 1(c) and (d) is the same as the two-way type spray mechanism 10A shown in Figures 1(a) and (b), except that the configuration of the long nozzle 35 is slightly different. Therefore, in the two-way type spray mechanism 10B with a nozzle tip part shown in Figures 1(c) and (d), parts that are the same as or similar to the two-way type spray mechanism 10A shown in Figures 1(a) and (b) will be given the same reference numerals in the figures, and detailed explanations will be omitted. The explanation will focus on the differences in the configuration of the long nozzle 35.
[0066] In the two-way type injection mechanism 10B with nozzle tip parts shown in Figures 1(c) and (d), the long nozzle 35 is composed of a sleeve portion 35a, a straw portion 35b, and a short cylindrical nozzle tip part 35c that is fitted onto the tip of the straw portion 35b. As shown in the enlarged view of the main part in Figure 1(d), the nozzle tip part 35c has a second injection port 32 that opens on the downstream side (tip side) in the flow direction.
[0067] In the two-way type spray mechanism 10B with nozzle tip parts shown in Figures 1(c) and (d), when the spray button 41 of the operating mechanism 40 is pressed in the normal mode shown in Figure 1(c) to press the actuator body 21, the aerosol agent ejected from the aerosol container 2 via the stem 4 is sprayed over a relatively wide area from the first spray port 31 via the L-shaped flow path 25 and the first spray flow path 26. Also, in the two-way type spray mechanism 10B with nozzle tip parts, when the spray button 41 of the operating mechanism 40 is pressed in the long mode shown in Figure 1(d) to press the actuator body 21, the aerosol agent ejected from the aerosol container 2 via the stem 4 is sprayed over a relatively narrow area from the second spray port 32 via the L-shaped flow path 25, the second spray flow path 27 and the long nozzle 35.
[0068] <Length of the long nozzle> In the two-way type injection mechanism 10B shown in Figures 1(c) and (d), the "length of the long nozzle" of the present invention refers to the length indicated by the arrow labeled "L" in Figure 1(b), in the same sense as the two-way type injection mechanism 10A shown in Figures 1(a) and (b). In other words, in the case of the two-way type injection mechanism 10B shown in Figures 1(c) and (d), the total length of the long nozzle 65 from the base end of the sleeve portion 35a to the tip of the nozzle tip part 35c (the length indicated by the arrow with the symbol "L'" in Figure 1(d)) does not correspond to the "length of the long nozzle" of the present invention. Rather, the position where the first injection port 31 is located in the normal mode shown in Figure 1(c) is taken as the reference position (P), and the length of the portion that substantially functions as a nozzle compared to the normal mode (the length indicated by the arrow with the symbol "L" in Figure 1(d)), that is, the length of the portion of the long nozzle 65 from the position corresponding to the reference position (P) of the sleeve portion 35a to the tip of the nozzle tip part 35c, is defined as the "length of the long nozzle" of the present invention.
[0069] Figure 2(a) is a diagram showing the normal mode state of the internal fitting replacement type spray mechanism 10C in aerosol product 1C(1). Figure 2(b) is a diagram showing the long mode state of the same spray mechanism 10C.
[0070] <Actuator> In the internal fitting exchange type spray mechanism 10C shown in Figures 2(a) and (b), the actuator 20 functions as an operating part for spraying the aerosol agent and is equipped with a push button 50 and a long nozzle 65. When not in use, the long nozzle 65 is secured to the aerosol container 2 itself or to a cap (not shown) detachably attached to the top of the aerosol container 2 using a fastening means to prevent loss (the same applies to the spray mechanism 10D described later). In this embodiment, the spray mechanism 10C is shown as an example in which the actuator 20 is equipped with a push button 50 and a long nozzle 65, and the actuator 20 is equipped with a form in which the push button 50 is used alone in normal mode (see Figure 2(a)) and a form in which the long nozzle 65 is attached to the push button 50 in long mode (see Figure 2(b)), but is not limited to this. For example, the actuator 20 may include two types: a standalone push button 50 itself, and a push button with a long nozzle, which is a push button 50 with a long nozzle 65 pre-attached to it. The actuator 20 may also include a configuration in which the push button 50 is fitted onto the stem 4 and used independently in normal mode (see Figure 2(a)), and a configuration in which the push button with a long nozzle is fitted onto the stem 4 and used in long mode (see Figure 2(b)). The actuator 20 that includes two types, a standalone push button 50 itself and a push button with a long nozzle, is also included in the "actuator" of the present invention.
[0071] The push button 50 is fitted to the stem 4 at its base end, and a spray section 53 is formed on its circumferential side so as to face outward. In the push button 50, an I-shaped channel 55 is formed in the portion from the base end fitted to the stem 4 to the spray section 53, and the aerosol agent ejected from the aerosol container 2 via the stem 4 is pressurized and delivered to the spray section 53 through the I-shaped channel 55.
[0072] As shown in the enlarged view of the main part in Figure 2(a), the injection section 53 has a communication hole 70, a nozzle fitting section 71, and an expanding section 72 that are formed sequentially from the downstream side of the I-shaped flow path 55 toward the outside of the circumferential surface of the push button 50. The communication hole 70 is able to communicate with the I-shaped flow path 55, and a first injection port 61 is formed to open toward the outside of the circumferential surface of the push button 50 on the downstream side of the communication hole 70 in the flow direction. The nozzle fitting section 71 is formed so that the base end of the long nozzle 65 can be press-fitted with a predetermined overlap. The expanding section 72 is formed in a tapered shape that gradually widens in diameter as it proceeds toward the outside of the circumferential surface of the push button 50.
[0073] <Long nozzle> As shown in Figure 2(b), a long nozzle 65 is detachably attached to the injection unit 53 with its base end press-fitted into the nozzle fitting part 71. The long nozzle 65 is formed in an elongated cylindrical shape so as to extend from the injection unit 53 in communication with the first injection port 61 on the downstream side in the flow direction of the communication hole 70, and has a second injection port 62 that opens on the downstream side (tip side) in the flow direction, as shown in the enlarged view of the main part in Figure 2(b). It is also possible to configure the long nozzle 65 by fitting a nozzle tip part part similar to the nozzle tip part 35c used in the two-way type injection mechanism 10B onto the tip of the long nozzle 65.
[0074] The actuator 20 is configured to allow switching between normal mode and long mode by attaching and detaching the long nozzle 65 to the nozzle fitting portion 71 of the spraying portion 53. Here, the normal mode is a spraying method in which the aerosol agent is sprayed through the first spray port 61 provided on the spraying portion 53 without attaching the long nozzle 65 to the push button 50, as shown in Figure 2(a). On the other hand, the long mode is a spraying method in which the long nozzle 65 is attached to the push button 50 by press-fitting the base end of the long nozzle 65 into the nozzle fitting portion 71, and the aerosol agent is sprayed through the second spray port 62 provided on the long nozzle 65, which is positioned to extend in the spraying direction from the position where the first spray port 61 is located in normal mode, as shown in Figure 2(b).
[0075] In the internal fitting replacement type spray mechanism 10C shown in Figures 2(a) and (b), when the push button 50 is pressed in the normal mode shown in Figure 2(a), the aerosol agent ejected from the aerosol container 2 via the stem 4 is sprayed over a relatively wide area from the first spray nozzle 61 via the I-shaped flow path 55 and the communication hole 70. In the internal fitting replacement type spray mechanism 10C, when the push button 50 is pressed in the long mode shown in Figure 2(b), the aerosol agent ejected from the aerosol container 2 via the stem 4 is sprayed over a relatively narrow area from the second spray nozzle 62 via the I-shaped flow path 55, the communication hole 70, the first spray nozzle 61 and the long nozzle 65.
[0076] <Length of the long nozzle> In the internal fitting replacement type injection mechanism 10C shown in Figures 2(a) and (b), the "length of the long nozzle" of the present invention refers to the length indicated by the arrow labeled "L" in Figure 2(b). That is, in Figure 2(b), the position where the first injection port 31 is located in the normal mode shown in Figure 2(a) is taken as the reference position (the position indicated by the arrow labeled "P" in Figure 2(b)) (in this example, since the base end surface of the long nozzle 65 abuts against the inner surface of the nozzle fitting portion 71, the position of the abutting surface is substantially the reference position). The length (L) of the portion of the long nozzle 65 that extends in the injection direction from its reference position (P) in the long mode shown in Figure 2(b) corresponds to the "length of the long nozzle" of the present invention in the case of the two-way type injection mechanism 10C. In the case of the internal fitting replacement type injection mechanism 10C shown in Figures 2(a) and (b), the total length of the long nozzle 65 from the base end to the tip (the length indicated by the arrow labeled "L'" in Figure 2(b)) and the length of the portion that extends from the reference position (P) and functions substantially as a nozzle (the length indicated by the arrow labeled "L" in Figure 2(b)) are the same, and these lengths (L, L') are defined as the "length of the long nozzle" of the present invention.
[0077] Figure 2(c) is a diagram of the normal mode state of the screw-type spray mechanism 10D in aerosol product 1D(1). Figure 2(d) is a diagram of the long mode state of the same spray mechanism 10D. The screw-type spray mechanism 10D shown in Figures 2(c) and (d) is basically the same structure as the internal-fitting type spray mechanism 10C shown in Figures 2(a) and (b), except that the mounting structure of the long nozzle 65 and the structure of the aerosol agent passage are slightly different. Therefore, in the screw-type spray mechanism 10D shown in Figures 2(c) and (d), parts that are the same as or similar to the internal-fitting type spray mechanism 10C shown in Figures 2(a) and (b) are simply denoted by the same reference numerals in the figures, and detailed explanations are omitted. The explanation will focus on the differences in the mounting structure of the long nozzle 65 and the structure of the aerosol agent passage.
[0078] <Actuator> In the screw-type spray mechanism 10D shown in Figures 2(c) and (d), the push button 50 is fitted to the stem 4 at its base end and has a spray section 53 that protrudes outward on its circumferential surface. In the push button 50, an L-shaped flow path 75 is formed in the portion from the base end fitted to the stem 4 to the spray section 53, and the aerosol agent ejected from the aerosol container 2 via the stem 4 is pressurized and delivered to the spray section 53 through the L-shaped flow path 75.
[0079] As shown in Figure 2(c), a male threaded portion 53a is formed on the outer circumferential surface of the intermediate portion between the base end and the tip end of the injection portion 53. As shown in the enlarged view of the main part in Figure 2(c), the injection portion 53 has a communication hole 80 formed from the downstream side of the L-shaped flow path 75 toward the direction of projection of the injection portion 53. The communication hole 80 can communicate with the L-shaped flow path 75, and a first injection port 61 is formed to open toward the outside of the circumferential surface of the push button 50 on the downstream side of the communication hole 80 in the flow direction. The tip end of the injection portion 53 is formed in a tapered shape having a tapered surface whose outer diameter gradually decreases as it proceeds toward the direction of projection of the injection portion 53.
[0080] <Long nozzle> As shown in Figure 2(d), a long nozzle 65 is detachably attached to the injection unit 53. The long nozzle 65 is composed of a tapered sheath-shaped sleeve portion 65a that can be screwed onto the male threaded portion 53a of the injection unit 53 while communicating with the first injection port 61 on the downstream side in the flow direction of the first injection port 61, and a slender cylindrical straw portion 65b whose base end is fitted to the sleeve portion 65a and connected to the sleeve portion 65a in a straight line. As shown in the enlarged view of the main part in Figure 2(d), the straw portion 65b has a second injection port 62 that opens on the downstream side (tip side) in the flow direction. It is also possible to configure the long nozzle 65 by fitting a nozzle tip part portion similar to the nozzle tip part 35c used in the two-way type injection mechanism 10B onto the tip of the straw portion 65b.
[0081] The actuator 20 is configured to allow switching between normal mode and long mode by attaching and detaching the long nozzle 65 to the spray unit 53. Here, the normal mode is a spraying method in which the aerosol agent is sprayed through the first spray port 61 provided on the spray unit 53 without attaching the long nozzle 65 to the push button 50, as shown in Figure 2(c). On the other hand, the long mode is a spraying method in which the long nozzle 65 is attached to the push button 50 by screwing the base end (sleeve portion 65a) of the long nozzle 65 to the male threaded portion 53a of the spray unit 53, and tightening it so that the tapered surface (convex surface) of the tapered shape of the spray unit 53 abuts against the flared tapered surface (concave surface) formed on the inner circumference of the sleeve portion 65a, as shown in Figure 2(d). In this mode, the aerosol agent is sprayed through the second spray port 62 provided on the long nozzle 65, which is positioned to extend in the spraying direction from the position where the first spray port 61 is located in normal mode.
[0082] In the screw-type spray mechanism 10D shown in Figures 2(c) and (d), when the push button 50 is pressed in the normal mode shown in Figure 2(c), the aerosol agent ejected from the aerosol container 2 via the stem 4 is sprayed over a relatively wide area from the first nozzle 61 via the L-shaped flow path 75. In the screw-type spray mechanism 10D, when the push button 50 is pressed in the long mode shown in Figure 2(d), the aerosol agent ejected from the aerosol container 2 via the stem 4 is sprayed over a relatively narrow area from the second nozzle 62 via the L-shaped flow path 75, the first nozzle 61, and the long nozzle 65.
[0083] <Length of the long nozzle> In the screw-type injection mechanism 10D shown in Figures 2(c) and (d), the "length of the long nozzle" of the present invention refers to the length indicated by the arrow labeled "L" in Figure 2(d). That is, in Figure 2(d), the position where the first injection port 31 is located in the normal mode shown in Figure 2(c) is taken as the reference position (the position indicated by the arrow labeled "P" in Figure 2(d)), and the length (L) of the portion of the long nozzle 65 extending in the injection direction from the reference position (P) in the long mode shown in Figure 2(d) corresponds to the "length of the long nozzle" of the present invention in the case of the screw-type injection mechanism 10D. In the case of the screw-type injection mechanism 10D shown in Figures 2(c) and (d), since the male threaded portion 53a of the injection portion 53 to which the sleeve portion 65a is screwed has length, the total length of the long nozzle 65 from the base end of the sleeve portion 65a to the tip of the straw portion 65b (the length shown in the range of the arrow with the symbol "L'" in Figure 2(d)) does not correspond to the "length of the long nozzle" of the present invention. Rather, the position where the first injection port 31 is located in the normal mode shown in Figure 2(c) is taken as the reference position (P), and the length of the portion that substantially functions as a nozzle compared to the normal mode (the length shown in the range of the arrow with the symbol "L" in Figure 2(d)), that is, the length of the portion of the long nozzle 65 from the position corresponding to the reference position (P) of the sleeve portion 65a to the tip of the straw portion 65b, is defined as the "length of the long nozzle" of the present invention.
[0084] <Sa / Sb、Va / Vb> In the aerosol product 1 of the present invention, when a flat plate is placed 40 cm away from the first spray nozzles 31 and 61, and the aerosol agent is sprayed in normal mode, the area of the aerosol agent adhering to the flat plate is denoted as Sa, and when a flat plate is placed 40 cm away from the second spray nozzles 32 and 62, and the aerosol agent is sprayed in long mode, the area of the aerosol agent adhering to the flat plate is denoted as Sb. The following relationship (1): Sa / Sb ≥ 1.05 ···(1) Satisfying the conditions, Let Va be the amount of aerosol sprayed per unit time (10 seconds) when spraying in normal mode. When spraying an aerosol in long mode, let Vb be the amount sprayed per unit time (10 seconds). The following relationship (2): 1.0 ≦ Va / Vb ≦ 2.5 (2) It is configured to satisfy the following conditions.
[0085] Under the specific conditions described above, if the area of the aerosol agent's adhesion region (Sa) in normal mode is large, the aerosol agent can be applied to a wide area in normal mode. Conversely, if the area of the aerosol agent's adhesion region (Sb) in long mode is small, the aerosol agent can be applied to a narrow area in long mode, enabling localized treatment. The ratio of area (Sa) to area (Sb) (Sa / Sb) is related to the versatility of being able to spray over both wide and narrow areas. When Sa / Sb is less than 1.05, there is almost no difference in the adhesion region of the aerosol agent between normal mode and long mode; in other words, there is almost no difference in the spray range, resulting in low versatility. On the other hand, the ratio (Va / Vb) of the amount sprayed per unit time (10 seconds) when spraying an aerosol agent in normal mode (Va) to the amount sprayed per unit time (10 seconds) when spraying an aerosol agent in long mode is related to the difference in user experience, such as the need to move the handle significantly to widen the spraying area or the time required for spraying, between spraying in normal mode and spraying in long mode. In order to increase versatility while minimizing the difference in user experience, it is important that both Sa / Sb and Va / Vb satisfy predetermined conditions. According to the aerosol product 1 of this embodiment, Sa / Sb is set to 1.05 or higher, and Va / Vb is set within an appropriate range, so that the difference in user experience when switching between normal mode and long mode is minimized, and versatility is increased, allowing for spraying over both wide and narrow areas.
[0086] Furthermore, Sa / Sb is preferably 1.65 or less, and more preferably 1.6 or less. If Sa / Sb is greater than 1.65, the difference in the area of aerosol agent adhesion between normal mode and long mode may become excessive, resulting in a noticeable difference in user experience. Also, Va / Vb is preferably 2.0 or less, and more preferably 1.5 or less.
[0087] In the aerosol product 1 of the present invention, the amount of aerosol sprayed per unit time (10 seconds) when the aerosol agent is sprayed in long mode, Vb, is preferably 10 g / 10 seconds or more. In the aerosol product 1 of the present invention, setting Vb to 10 g / 10 seconds or more ensures that the aerosol agent adheres reliably to targets at a distance. It is more preferable that Vb be 15 g / 10 seconds or more.
[0088] In the aerosol product 1 of the present invention, the length L of the long nozzles 35 and 65 is preferably 60 mm or more, and more preferably 70 mm or more. In the aerosol product 1 of the present invention, by setting the length (L) of the long nozzles to 60 mm or more, it is possible to, for example, spray the aerosol agent locally through gaps such as window frames and sashes, or gaps between furniture and walls, or to spray the aerosol agent intensively onto a target while suppressing the adhesion of the aerosol agent to the surrounding area of the target, even if the user does not need to get very close to the target.
[0089] In the aerosol product 1 of the present invention, the diameter of the first nozzles 31 and 61 can be set in the range of 0.2 to 2.5 mm, preferably 0.4 to 2.5 mm, more preferably 0.6 to 2.0 mm, and particularly preferably 0.8 to 1.5 mm. Expressed as an opening area, the opening area of the first nozzles 31 and 61 is 0.03 to 4.90 mm². 2 It can be set within the range of 0.13 to 4.90 mm, preferably 0.13 to 4.90 mm. 2 More preferably 0.28 to 3.14 mm 2 And, particularly preferably, 0.50 to 1.77 mm 2That is, by setting the diameters (opening areas) of the first injection ports 31 and 61 within an appropriate range, the aerosol agent can be adhered to a wide range with an appropriate injection amount onto the injection target. Note that the above ranges of the diameter and the opening area are based on the premise that the first injection ports 31 and 61 are single openings, but the first injection ports 31 and 61 may be composed of a plurality of injection ports. In this case, as long as the total opening area of the plurality of injection ports satisfies the above range of the opening area (0.03 to 4.90 mm 2 ), the diameter of one first injection port 31 or 61 is not limited to the above range of the diameter (0.2 to 2.5 mm).
[0090] In the aerosol product 1 of the present invention, the diameter of the second injection ports 32 and 62 can be set within the range of 0.4 to 3.0 mm, preferably 0.6 to 2.5 mm, more preferably 0.8 to 2.0 mm, and particularly preferably 1.0 to 1.8 mm. In terms of the opening area, the opening area of the second injection ports 32 and 62 can be set within the range of 0.13 to 7.07 mm 2 , preferably 0.28 to 4.91 mm 2 , more preferably 0.50 to 3.14 mm 2 , and particularly preferably 0.79 to 2.54 mm 2 . That is, by setting the diameter (opening area) of the second injection ports 32 and 62 within an appropriate range, it is possible to suppress the weakening of the injection force of the aerosol agent and to suppress the excessive diffusion of the aerosol agent. As a result, the aerosol agent can be surely adhered to the injection target with an appropriate injection amount, and it becomes easy to aim at the injection target. Note that the above ranges of the diameter and the opening area are based on the premise that the second injection ports 32 and 62 are single openings, but the second injection ports 32 and 62 may be composed of a plurality of injection ports. In this case, as long as the total opening area of the plurality of injection ports satisfies the above range of the opening area (0.13 to 7.07 mm 2 ), the diameter of one second injection port 32 or 62 is not limited to the above range of the diameter (0.4 to 3.0 mm).
[0091] In the aerosol product 1 of the present invention, when the diameter of the first nozzles 31 and 61 is D1 and the diameter of the second nozzles 32 and 62 is D2, The following relationship (3): 1.2 ≦ D2 / D1 ≦ 2.5 (3) It is preferable that the configuration satisfies the following conditions.
[0092] In the aerosol product 1 of the present invention, by setting the ratio (D2 / D1) of the diameter of the second nozzles 32,62 (D2) to the diameter of the first nozzles 31,61 (D1) to an appropriate range as shown in the above relational formula (3), the difference in user experience when switching between normal mode and long mode can be reliably suppressed. It is more preferable that D2 / D1 be between 1.25 and 2.13.
[0093] In the aerosol product 1 of the present invention, the length (L) of the long nozzles 35, 65 and the diameter (D2) of the second spray nozzles 32, 62 are, The following relationship (4): 56 ≤ L / D2 ≤ 140 ···(4) It is preferable that the configuration satisfies the following conditions.
[0094] In the aerosol product 1 of the present invention, by setting the ratio (L / D2) of the length (L) of the long nozzles 35,65 to the diameter (D2) of the second spray ports 32,62 to an appropriate range as shown in the above relational formula (4), it is possible to suppress the increase in the flow resistance of the aerosol agent within the long nozzles 35,65 while suppressing excessive diffusion of the aerosol agent. As a result, the aerosol agent can be reliably attached to the target with an appropriate amount of spray, and it becomes easier to aim at the target. It is more preferable that L / D2 be between 66 and 125, and even more preferable that it be between 66 and 115.
[0095] Figure 3 is a model diagram showing the spray state (spray pattern) of the aerosol agent when the aerosol product 1 of the present invention is sprayed toward a target object (for example, a balcony BL, window frames, sashes, etc. FT). In this embodiment, spider K is assumed to be the target pest (target object). The aerosol product 1 uses pyrethroid-based and organosilicon-based pest control components as pest control components, a higher fatty acid ester compound as a spider nesting prevention component, a paraffin-based solvent as the solvent, and LPG as the propellant. The pyrethroid-based and organosilicon-based pest control components, as well as the higher fatty acid ester compound, are sealed in the aerosol container 2 together with LPG as an aerosol concentrate dissolved in the paraffin-based solvent before spraying. As shown in Figure 3(a), the user sprays the aerosol product 1 in normal mode toward the corner of the balcony BL in this case. In this case, the spray force of aerosol product 1 is preferably set to be 12 g·f or more (0.118 N or more) at 25°C at a position 40 cm in front of the nozzle of aerosol product 1, and the amount of aerosol agent to be processed is 10 to 250 mL / m² of undiluted aerosol solution adhering to the object to be treated (veranda BL). 2 It is preferable to set it so that it results in the following.
[0096] When the aerosol is sprayed, the aerosol concentrate containing pyrethroid and organosilicon-based insecticide components, higher fatty acid ester compounds, and paraffinic solvents is released into the atmosphere in particulate form, forming spray particles. The size of the spray particles is set to 20 to 70 μm, preferably 30 to 60 μm, as the 10% volume integrated particle diameter (D10) at 25°C. If the 10% particle diameter is less than 20 μm, the spray particles are more likely to scatter, reducing the adhesion efficiency to the target object (veranda BL), and if the 10% particle diameter exceeds 70 μm, the reach of the spray particles may be shortened.
[0097] When the spray particles adhere to the target object (veranda BL), the pyrethroid and organosilicon insecticide components contained in the spray particles act to directly control spiders K that roam the target object (veranda BL). On the other hand, the higher fatty acid ester compounds contained in the spray particles have low volatility and remain liquid at room temperature, so they remain attached to the target object (veranda BL) even after a certain amount of time has passed. Therefore, the higher fatty acid ester compounds contained in the spray particles attached to the target object (veranda BL) exhibit excellent nest-building prevention effects over a long period (approximately 1 to 3 months).
[0098] As shown in Figure 3(b), for example, if spider K approaches the corner of veranda BL, switch aerosol product 1 to long mode and spray directly at spider K. This causes the pyrethroid and organosilicon insecticide components that adhere to spider K to quickly knock down and kill the spider K.
[0099] Furthermore, as shown in Figure 3(c), the aerosol product 1 is sprayed in long mode until it is wet, targeting the spider's entry route in the window frame, sash, and other building components FT. The higher fatty acid ester compound exhibits a high nest-building prevention effect, and because it has low volatility and remains liquid at room temperature, it also contributes to coating pyrethroid and organosilicon-based insecticide components and improving their persistence. Therefore, it is possible not only to prevent spiders K from building nests in the window frame, sash, and other building components FT, but also to prevent spiders from entering. In long mode, even narrow and narrow entry routes can be sprayed precisely and effectively, so the aerosol agent can be applied efficiently while suppressing the unnecessary diffusion of the aerosol agent around the entry route.
[0100] In this way, spider K can be reliably controlled (including prevention, eradication, and prevention of nesting) before and / or in the early stages of nesting activity. Therefore, by using the aerosol product 1 of the present invention, the approach and nesting activity of spider K can be prevented, making fundamental spider control possible. [Examples]
[0101] The following describes examples of the aerosol product of the present invention. However, the present invention is not limited to these examples.
[0102] [Table 1]
[0103] <Example 1> An aerosol concentrate was prepared by dissolving cyfluthrin (0.15 w / v%) and transfluthrin (0.10 w / v%), which are pest control components, and isocetyl stearate (0.50 w / v%), which is a web-building inhibitor (nest-preventing component), in isoparaffin (40 v / v%), a solvent. An aerosol containing 180 mL of this aerosol concentrate (a) and 270 mL of liquefied petroleum gas (b) as a propellant, with a volume ratio (a / b) of 40 / 60, was pressurized and filled into an aerosol container 2 equipped with a standard spray valve. A two-way type spray mechanism 10A was then attached to this aerosol container 2, and the aerosol product of Example 1 was obtained by setting the diameter of the first spray nozzle 31 (D1), the diameter of the second spray nozzle 32 (D2), and the nozzle length (L) to the conditions shown in Table 1 above.
[0104] <Example 2> In the same manner as in Example 1, an aerosol container 2 was pressurized and filled with an aerosol agent, and a two-way spray mechanism 10B with a nozzle tip part was attached to it. An aerosol product of Example 2 was obtained, with the diameter of the first spray port 31 (D1) and the diameter of the second spray port 32 (D2) set to the conditions shown in Table 1 above. In Example 2, the inner diameter D0 at the tip of the straw portion 35b (see the enlarged view of the main part in Figure 1(d)) is 1.0 mm.
[0105] <Examples 3 and 4> In the same manner as in Example 1, an aerosol container 2 was pressurized and filled with an aerosol agent, and a two-way spray mechanism 10A was attached to it. Aerosol products of Examples 3 and 4 were obtained by setting the diameter of the first spray nozzle 31 (D1), the diameter of the second spray nozzle 32 (D2), and the nozzle length (L) to the conditions shown in Table 1 above.
[0106] <Comparative Example 1, Comparative Example 2, Comparative Example 3> In the same manner as in Example 1, an aerosol container 2 was pressurized and filled with an aerosol agent, and a two-way spray mechanism 10A was attached to it. Comparative Examples 1, 2, and 3 aerosol products were obtained, each set to the conditions shown in Table 1 for the diameter of the first spray nozzle 31 (D1), the diameter of the second spray nozzle 32 (D2), and the nozzle length (L). In Table 1, the notation "0.4 × 0.6" for the diameter of the first spray nozzle 31 (D1) in Comparative Example 1 indicates that, at the projection 23a (see Figure 1(a)), the diameter of the first spray flow path 26 leading to the first spray nozzle 31 differs between the upstream and downstream sides in the flow direction, with the upstream diameter being 0.4 mm and the downstream diameter being 0.6 mm. The same applies to the notation "0.4 × 0.6" for the diameter of the first spray nozzle 31 (D1) in Comparative Example 2.
[0107] <Comparative Example 4> In the same manner as in Example 1, an aerosol container 2 was pressurized and filled with an aerosol agent, and an internal fitting replacement type spray mechanism 10C was attached to it. Comparative Example 4 aerosol product was obtained by setting the diameter of the first spray nozzle 31 (D1), the diameter of the second spray nozzle 32 (D2), and the nozzle length (L) to the conditions shown in Table 1 above.
[0108] The aerosol products of Examples 1-4 and Comparative Examples 1-4 described above were tested for spray volume, spray pattern, and spray force using the following test methods.
[0109] [Injection volume test] The aerosol product under test was adjusted to 25°C, its initial weight was measured, and after spraying for 10 seconds, the weight after spraying was measured. The amount sprayed per 10 seconds (Va, Vb) was calculated based on the difference between the initial weight and the weight after spraying.
[0110] [Spray pattern test (spray distance 40cm)] For the aerosol products under test, a flat plate with electrocardiogram paper (manufactured by Kobayashi Create Co., Ltd.: CB-280B) attached was placed vertically at a distance of 40 cm from the first spray nozzles 31 and 61. The aerosol products were then sprayed onto the electrocardiogram paper attached to the flat plate in both normal and long mode, and the spray pattern was observed. The spray pattern refers to the form (including the contour shape and area of the attachment region) of the fine particles of the aerosol agent (aerosol concentrate) sprayed from the aerosol product that adhere to the surface. On the electrocardiogram paper, the diameter in the vertical direction (major or minor axis) and the diameter in the horizontal direction (minor or major axis) of the circular (including perfect circles and ellipses) areas (attachment regions) where the fine particles of the aerosol agent (aerosol concentrate) sprayed from the aerosol product adhered and discolored was measured using a ruler, and the area of the attachment region (Sa40, Sb40) was calculated using the formula (major axis / 2) × (minor axis / 2) × π. Furthermore, regardless of the properties of the drug contained in the aerosol (oil-based or water-based), the paper used is not particularly limited as long as it allows observation of the area to which the aerosol particles have adhered, and paper other than the electrocardiograph paper described above can be used. In addition, the electrocardiograph paper described above is attached to make it easier to observe the area to which the aerosol has adhered, and the "area to which the aerosol has adhered to the electrocardiograph paper attached to the flat plate" in the spray pattern test and the "area to which the aerosol has adhered to the flat plate" in the present invention are basically synonymous.
[0111] [Injection force test] The aerosol products of the test subjects (Example 3, Comparative Example 1, Comparative Example 2) were adjusted to 25°C. A test plate made of 20cm square acrylic, with a thickness of 1.0mm and a weight of 49.26g, was set on a digital force gauge (FGC-0.5, manufactured by Nidec-Shimpo Corporation). In Example 3 and Comparative Example 1, the aerosol agent was sprayed from a distance of 40cm toward the test plate in normal mode, and in Comparative Example 2, in long mode, until the measurement value on the digital force gauge stopped fluctuating. The maximum value measured at that time was obtained as the spray force (F). The values in Table 2 are the average values obtained from two measurements.
[0112] The test results for spray volume, spray pattern, and spray force of the aerosol products of Examples 1-4 and Comparative Examples 1-4 are shown in Table 2 below. In Table 2 below, Sa40 and Sb40 correspond to Sa and Sb of the present invention.
[0113] [Table 2]
[0114] The aerosol products of Examples 1-4 and Comparative Examples 1-4 were evaluated using the following evaluation method.
[0115] [Method for evaluating processing effort] 1m 2 For each spray target surface, the aerosol products of Examples 1-4 and Comparative Examples 1-4 were sprayed in long mode. Ten panelists were asked to rate whether they found the process cumbersome, such as having to move the handle significantly to spread the sprayed surface or the spraying process taking a long time. A score of "1" indicated that they found it cumbersome, and a score of "0" indicated that they did not find it cumbersome. The average score was calculated based on these ratings. A rating of "A" was given for average scores between 0.0 and 0.3, "B" for average scores between 0.3 and 0.7, and "C" for average scores between 0.7 and 1.0.
[0116] [Method for evaluating differences in user experience] We compared the user experience when spraying in normal mode and when spraying in long mode, and asked whether we felt a difference in the amount of effort required for processing. We rated "1" if we felt a difference in effort and "0" if we did not feel a difference in effort. An average score of 0.5 or higher was rated "Yes," and a score below 0.5 was rated "No."
[0117] [Method for evaluating versatility] When comparing spraying in normal mode with spraying in long mode, participants were asked to rate whether they felt they could spray the chemical over a narrower area. A score of "3" indicates a strong feeling of effectiveness, "2" indicates effectiveness, "1" indicates some effectiveness, and "0" indicates no effectiveness. A score of 1.8 or higher was given an "A," a score between 1 and 1.8 was given a "B," and a score below 1 was given a "C."
[0118] The evaluation results for the aerosol products of Examples 1-4 and Comparative Examples 1-4, using the above evaluation method, are shown in Table 3 below.
[0119] [Table 3]
[0120] [Spray pattern test (spray distance 20cm)] In addition to the above spray pattern test at a spray distance of 40 cm, the flat plate to which the electrocardiogram paper was attached was moved to a position 20 cm away from the first spray nozzles 31 and 61. The spray pattern was then observed and the area of the adhesion region was calculated in the same manner as in the above spray pattern test at a spray distance of 40 cm. The results are shown in Table 4 below.
[0121] [Table 4]
[0122] Furthermore, for reference, the ratio of the area of the adhesion region at a spray distance of 40 cm (Sa40, Sb40: corresponding to "Sa, Sb" in the present invention) to the area of the adhesion region at a spray distance of 20 cm (Sa20, Sb20) is shown in Table 5 below.
[0123] [Table 5]
[0124] As shown in Table 2, the Sa40 / Sb40 values (corresponding to the Sa / Sb values of the present invention) for the aerosol products of Examples 1 to 4 were equal to or greater than the lower limit (1.05) specified in the present invention. Also, as shown in Table 2, the Va / Vb values for the aerosol products of Examples 1 to 4 were within the numerical range (1.0 to 2.5) specified in the present invention. Furthermore, as shown in Table 3, the aerosol products of Examples 1 to 4 all received an "A" rating for processing effort, an "A" rating for versatility, and a "None" rating for difference in user experience, indicating that there was no perceived difference in processing effort between normal mode and long mode. Thus, by setting the Sa40 / Sb40 value to be equal to or greater than the lower limit (1.05) defined in this invention, and setting the Va / Vb value to be within the numerical range (1.0 to 2.5) defined in this invention, it is possible to enhance versatility by enabling both wide-area and narrow-area spraying while minimizing the difference in user experience when switching between normal mode and long mode.
[0125] As shown in Table 2, in the aerosol products of Examples 1 to 4, the Vb value was above the lower limit (10 g / 10 sec) specified in the present invention (16.0 g / 10 sec; 16.5 g / 10 sec; 17.4 g / 10 sec; 15.7 g / 10 sec). Thus, by setting the Vb value above the lower limit specified in the present invention, the Sb value was set to a relatively high level (95.0 cm). 2 86.4cm 2 113.0cm 2 78.5cm 2 This allows the aerosol agent to be reliably applied even to distant targets.
[0126] Compared to the aerosol products of Examples 1 to 4 described above, the aerosol products of Comparative Examples 1 to 3 received a versatility rating of "B" or "C," as shown in Table 3. As shown in Table 2, the Sa40 / Sb40 values of the aerosol products of Comparative Examples 1 to 3 were below the lower limit (1.05) specified in the present invention (0.7; 0.8; 1.0). Therefore, in order to improve versatility, it is necessary to set the Sa40 / Sb40 value to 1.05 or higher, as specified in the present invention. Also, as shown in Table 2, the Sa40 / Sb40 value of the aerosol product of Comparative Example 4 was 1.7. Furthermore, as shown in Table 3, the aerosol product of Comparative Example 4 received a rating of "Yes" for difference in usability. Therefore, in order to suppress the difference in usability, it is necessary to set the Sa40 / Sb40 value to 1.6 or lower, compared to the Sa40 / Sb40 value (1.6) of Example 4.
[0127] As shown in Table 2, in the aerosol products of Comparative Examples 1 to 3, the Va / Vb values were above the lower limit (1.0) and below the upper limit (2.5) specified in the present invention (1.0; 1.2; 1.0), while in the aerosol product of Comparative Example 4, the Va / Vb value was above the upper limit (2.5) specified in the present invention (2.9). Furthermore, as shown in Table 3, the evaluation of the difference in usability for the aerosol products of Comparative Examples 1 to 3 was "none," while the evaluation of the difference in usability for the aerosol product of Comparative Example 4 was "yes." From this, it can be concluded that in order to suppress the difference in usability, it is necessary to set the Va / Vb value within the numerical range specified in the present invention (1.0 to 2.5).
[0128] As shown in Table 2, the Vb values of the aerosol products in Comparative Examples 1, 2, and 4 were below the lower limit (10 g / 10 sec) specified in the present invention (7.9 g / 10 sec; 5.0 g / 10 sec; 6.4 g / 10 sec). Therefore, the Sb40 value was at a relatively low level (82.4 cm). 2 56.7cm 2 74.6cm 2 As a result, the aerosol agent cannot be adequately applied to distant targets.
[0129] As shown in Table 2, the aerosol product of Comparative Example 3 had a Vb value (18.5 g / 10 seconds) that exceeded the lower limit (10 g / 10 seconds) specified in the present invention, yet the Sa40 / Sb40 value was at a relatively low level (1.0), resulting in a versatility evaluation of "C". This is thought to be because the length (L) of the long nozzle of the aerosol product of Comparative Example 3 was extremely short at 55 mm, making it difficult to perceive the ability to spray the agent over a narrow area when spraying in long mode compared to spraying in normal mode. Therefore, it is preferable to set the length of the long nozzle to be at least the lower limit (60 mm) specified in the present invention. This allows for localized spraying of the aerosol agent through gaps such as window frames and sashes, or gaps between furniture and walls, or allows for focused spraying of the aerosol agent onto a target while suppressing adhesion of the aerosol agent to the surrounding area, even without the user getting too close to the target.
[0130] As described above, the aerosol products of Examples 1 to 4 have a Sa40 / Sb40 of 1.05 or higher (Feature 1), a Va / Vb of 1.0 to 2.5 (Feature 2), a Vb of 10g / 10 seconds or higher (Feature 3), a long nozzle length L of 60mm or higher (Feature 4), a first nozzle diameter of 0.8 to 1.5mm (Feature 5), a second nozzle diameter of 1.0 to 1.8mm (Feature 6), a D2 / D1 of 1.2 to 2.5 (Feature 7), and an L / D2 of 56 to 140 (Feature 8). Furthermore, by appropriately combining these Feature 1 to 8 and relating them functionally or operationally to one another, it is possible to achieve the effect of increasing versatility, enabling spraying over both wide and narrow areas while minimizing the difference in user experience when switching between normal mode and long mode.
[0131] As shown in Table 4, when comparing Examples 1-4 with Comparative Examples 2 and 3, there was no significant difference in the Sa20 / Sb20 values. Furthermore, as shown in Table 5, there was no significant difference in the Sa40 / Sa20 and Sb40 / Sb20 values. Therefore, the parameters related to Sa40 and Sb40 (Sa40 / Sb40) are particularly excellent indicators that can succinctly represent the user experience and versatility when switching between normal mode and long mode for aerosol products, and are preferred parameters for identifying the present invention. [Industrial applicability]
[0132] The aerosol product of the present invention can be used both indoors and outdoors, for example, in the entrances, eaves, balconies, window frames, and sashes of houses, and is particularly suitable for preventing spiders from building nests or for eliminating spiders. In addition, it can also be used to control flying insects such as mosquitoes, midges, and gnats, as well as crawling insects such as cockroaches, ants, and centipedes. [Explanation of Symbols]
[0133] 1. Aerosol Products 20 Actuators 31,61 First injection port 35.65 Long Nozzle 32,62 Second injection port
Claims
1. An aerosol product that can switch between a normal mode, in which the aerosol agent is sprayed through a first nozzle provided on an actuator, and a long mode, in which the aerosol agent is sprayed through a second nozzle provided on a long nozzle that extends in the spraying direction from the position where the first nozzle is located in the normal mode, A flat plate is placed 40 cm away from the first spray nozzle, and when the aerosol agent is sprayed in the normal mode, the area of the aerosol agent that adheres to the flat plate is defined as Sa. When a flat plate is placed 40 cm away from the second nozzle, and the aerosol agent is sprayed in the long mode, the area of the aerosol agent adhering to the flat plate is denoted as Sb, The following relationship (1): Sa / Sb≧1.05...(1) Satisfying the conditions, Let Va be the amount sprayed per unit time (10 seconds) when the aerosol agent is sprayed in the normal mode described above. When the amount of aerosol sprayed per unit time (10 seconds) in the long mode is Vb, The following relationship (2): 1.0≦Va / Vb≦2.5...(2) Aerosol products configured to satisfy the requirements.
2. The aerosol product according to claim 1, wherein Vb, which is the amount sprayed per unit time (10 seconds) when the aerosol agent is sprayed in the long mode, is 10 g / 10 seconds or more.
3. The aerosol product according to claim 1, wherein the length of the long nozzle is 60 mm or more.
4. The aerosol product according to claim 1, wherein the diameter of the first spray nozzle is 0.8 to 1.5 mm.
5. The aerosol product according to claim 1, wherein the diameter of the second nozzle is 1.0 to 1.8 mm.
6. Let the diameter of the first injection port be D1. When the diameter of the second injection port is D2, The following relationship (3): 1.2 ≦ D2 / D1 ≦ 2.5 (3) The aerosol product according to claim 1, configured to satisfy the requirements.
7. Let L be the length of the long nozzle. When the diameter of the second injection port is D2, The following relationship (4): 56≦L / D2≦140...(4) The aerosol product according to claim 1, configured to satisfy the requirements.
8. An aerosol product according to any one of claims 1 to 7, used for controlling pests and mites.