Upward injection aerosol product

Abstract

To provide an upward injection aerosol product by which a jetting product easily adheres to a ceiling and a surrounding wall and less wetting is caused on a flour surface by the dropped jetting product.SOLUTION: An upward injection aerosol product comprises an aerosol container 13, an aerosol composition C charged in the aerosol container, and an injection member 14 attached to the aerosol container. The injection member includes a stem attaching part 14e, a nozzle attaching part 14f extending in the same direction as a center axis of the aerosol container, a nozzle 15 attached to the nozzle attaching part, and an operation part 14d for opening an aerosol valve 12. The nozzle includes an inner passage 15a of the nozzle and an injection hole 16a for injecting the aerosol composition in a misted state. Injection force at a position apart from the injection hole by 5 cm at 25°C is 6 gf or more. A ratio (L / d) of an inner diameter (d) and a length (L) of the inner passage of the nozzle is 20-150, and a ratio (D / d) of the inner diameter (d) and a diameter (D) of the injection hole is 0.25-0.9.SELECTED DRAWING: Figure 1

Description

[Technical field]

[0001] The present invention relates to an upward-jetting aerosol product, and more particularly to an upward-jetting aerosol product that is placed on a floor surface and sprays an aerosol composition toward a ceiling. [Background technology]

[0002] Patent Document 1 discloses a total-amount-injection aerosol device for use in fumigation products, smoked products, etc., in which the aerosol is sprayed to a height of 2 m or more from the floor surface. In this total-amount-injection aerosol device, the ratio (volume) of propellant / undiluted liquid is 70 / 30 to 90 / 10, the hole area ratio of the undertap / stem is 7 to 12 times, and the hole area of ​​the undertap is 3 to 5 mm. 2 By setting the hole area ratio of the stem hole to the nozzle hole at 0.2 to 2 times, it is possible to spray the spray height of 2m or more. Therefore, it is possible to uniformly spray insecticide or deodorant over the entire surface of a large room (e.g., an eight-tatami room). In this device, a nozzle is provided facing upwards in the center of the top surface of the push button, and the aerosol composition is sprayed high and wide from the nozzle.

[0003] In Patent Document 1, the spray height is increased by increasing the amount of spray per unit time (Example 1 is 100 ml / 0.4 min = 4.2 ml / sec), so if used in a small space such as a bathroom, there is a risk of a rapid increase in the concentration of flammable materials such as liquefied petroleum gas. In addition, because the amount of spray is large, the floor surface is likely to become wet and slippery due to the sprayed material falling.

[0004] Patent Document 2 discloses an insecticidal and fungicidal aerosol for trees, in which the direction of the spray from the spray part is the same as the axial direction of the aerosol canister. The spray part in Fig. 2 has a protruding part (nozzle) that protrudes upward, and at the tip of this protruding part, a nozzle is formed that extends in the same direction as the axial direction, which is the longitudinal direction of the aerosol canister. With this device, it is possible to spray insecticidal and fungicidal agent onto the leaves of tall branches from below.

[0005] Patent Document 3 discloses an aerosol product that can maintain a rod shape without spreading out over a wide angle even when sprayed 50 cm to 2 m away from the target, and at least a part of the sprayed material freezes on the target, such as pests, to kill them. Patent Document 3 further discloses that an injection member (injection button) attached to the stem of an aerosol container is provided with an inner button passage that communicates from the stem to the injection hole of the injection member, a nozzle is attached to the tip of the inner button passage, the inside of the nozzle is provided with an inner nozzle passage with a smaller diameter than the inner button passage, an injection hole is provided at the tip, the length of the inner nozzle passage is 0.1 to 50 mm, the cross-sectional area of ​​the injection hole is equal to or less than the cross-sectional area of ​​the valve hole of the aerosol container, and the cross-sectional area of ​​the injection hole is 0.03 to 0.3 mm. 2 An aerosol product is disclosed.

[0006] The aerosol product of Patent Document 3 sprays liquefied gas in a rod shape and suppresses evaporation of the liquefied gas until it reaches the target, in order to freeze the target on which it is sprayed, such as a pest.

[0007] References regarding spraying force include Patent Documents 4 to 6. Patent Document 4 discloses a method for preventing bacteria and mold in a bathroom by attaching a chemical to the ceiling or walls of the bathroom. Patent Document 5 discloses a fixed-dose aerosol that attaches a chemical to the ceiling. Patent Documents 4 and 5 describe spraying force. However, the aerosol container is not placed on the floor and sprayed, but is held in the hand and sprayed repeatedly, which is cumbersome.

[0008] Patent Document 6 describes a method for controlling pests hiding behind obstacles indoors, in which a specific combination of spray force, distance to the target, and spray volume is used. However, this is cumbersome, as the aerosol container must be held in the hand and sprayed toward the wall. [Prior art documents] [Patent documents]

[0009] [Patent Document 1] Patent No. 4358197 [Patent Document 2] Patent Publication No. 2000-117160 [Patent Document 3] Patent No. 5781724 [Patent Document 4] Patent Publication No. 2023-40331 [Patent Document 5] Patent No. 2022-173098 [Patent Document 6] Patent No. 7068812 Summary of the Invention [Problem to be solved by the invention]

[0010] To provide an upward-jetting aerosol product that is placed on a floor surface and sprays toward a ceiling, in which the sprayed material is likely to adhere to the ceiling and surrounding walls and the floor surface is less likely to become wet due to the fallen sprayed material. [Means for solving the problem]

[0011] The upward-spraying aerosol product 10, 10A of the present invention comprises an aerosol container 13 consisting of a pressure-resistant container 11 and an aerosol valve 12 attached to the pressure-resistant container 11, an aerosol composition C filled in the aerosol container 13, and an ejection member 14 attached to the aerosol container 13, the ejection member 14 comprising a stem attachment portion 14e attached to the stem 12c of the aerosol valve 12, a nozzle attachment portion 14f extending in the same direction as the central axis J of the aerosol container 13, a nozzle 15 attached to the nozzle attachment portion 14f, and an operation portion 14d for opening the aerosol valve 12, the nozzle 15 comprising an inner nozzle passage 15a and an ejection hole 16a at the tip of the inner nozzle passage 15a for ejecting the aerosol composition C in a mist form, and characterized in that the ejection force at a position 5 cm away from the ejection hole 16a at 25°C is 6 gf or more. Here, the ejection force is measured by the force that a plate blocking the mist-like ejection receives from the ejection.

[0012] Furthermore, the upward-spray aerosol product 10, 10A of the present invention is characterized in that the ratio (L / d) of the inner diameter (d) of the nozzle inner passage 15a to the length (L) of the nozzle 15 is 20 to 150, and the ratio (D / d) of the inner diameter (d) of the nozzle inner passage 15a to the diameter (D) of the injection hole 16a is 0.25 to 0.9.

[0013] In such upward-spraying aerosol products 10, 10A, the spray amount is preferably 1.2 to 3.0 mL / sec. Effect of the Invention

[0014] In the upward-jetting aerosol product of the present invention, the material sprayed upward from the nozzle easily reaches a height of 2.5 m or more, which makes it easy for the material to adhere to the ceiling or surrounding walls. Furthermore, material sprayed upward that does not adhere to the ceiling or walls easily evaporates as it falls, making it difficult for the floor to get wet.

[0015] And because the ratio (L / d) of the inner diameter (d) of the nozzle passage to the length (L) is 20-150, the flow rate of the contents discharged from the stem is adjusted in the nozzle passage before being sprayed upward from the nozzle hole. This makes it easier for the sprayed material to reach a height of 2.5m or more. And because the ratio (D / d) of the inner diameter (d) of the nozzle passage to the diameter (D) of the nozzle hole is 0.25-0.9, the sprayed material is sprayed upward while spreading, which makes it easier for it to adhere to the surrounding walls.

[0016] In such upward-spraying aerosol products 10 and 10A, when the spray volume is 1.2 to 3.0 mL / sec, there is no risk of a sudden increase in the concentration of flammable substances such as liquefied petroleum gas, even when used in a small space such as a bathroom, and it is safe. In addition, since the spray volume is not so large, the spray particles that do not adhere to the ceiling or wall tend to volatilize on the way down, and the problem of the floor becoming wet and slippery due to the spray particles that fall is unlikely to occur. [Brief description of the drawings]

[0017] [Figure 1]1A and 1B are a perspective view and a partial cross-sectional perspective view of one embodiment of an upper-jet aerosol product of the present invention, and FIG. 1C is an enlarged view of a portion of FIG. 1B. [Diagram 2] 2A and 2B are cross-sectional side views of a main part showing a natural state and a depressed state of a spray member of the upward spray aerosol product of FIG. [Diagram 3] 3A and 3B are perspective and partial cross-sectional side views of another embodiment of an upper-jet aerosol product, and FIG. 3C is an enlarged view of a portion of FIG. 3B. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0018] Next, an embodiment of an upward-spraying aerosol product (hereinafter, simply referred to as an aerosol product) of the present invention will be described with reference to the drawings. An aerosol product 10 in Fig. 1A and Fig. 1B comprises an aerosol container 13 consisting of a pressure-resistant container 11 and an aerosol valve 12 attached to the pressure-resistant container 11, an aerosol composition C filled in the aerosol container 13, and an ejection member 14 attached to the aerosol container 13.

[0019] As shown in Fig. 2A, the pressure-resistant container 11 is composed of a cylindrical container body 11a with a bottom, and an annular dome member (so-called glasses) 11b attached to the upper end opening of the container body 11a by double seaming or the like. The dome member 11b is provided with a central opening 11b1, which is tightly closed by a mounting cup 12a of the aerosol valve 12. The pressure-resistant container 11 and the mounting cup 12a are made of metal such as tinplate or aluminum. However, they can also be made of synthetic resin or the like.

[0020] A bead (11b2 in FIG. 2A) is formed on the inner circumference of the central opening 11b1 of the dome member 11b, and the outer periphery 12a1 of the mounting cup 12a is covered on the bead 11b2 via a gasket. The mounting cup 12a is fixed to the dome member 11b by clinching. The capacity of the pressure-resistant container 11 consisting of the container body 11a and the dome member 11b is, for example, about 100 to 300 mL in the case of a total-volume injection type.

[0021] The aerosol valve 12 has the above-mentioned mounting cup 12a, a bottomed cylindrical housing (see reference numeral 12b in FIG. 2A) held by the mounting cup 12a, and a stem 12c that is housed in the housing 12b so as to be movable up and down and whose upper part penetrates the mounting cup 12a and protrudes upward. The aerosol valve 12 further has a spring (not shown) that urges the stem 12c upward, and a stem rubber that is interposed between the periphery of the stem 12c and the housing 12b, and that closes the stem hole in the natural state (see FIG. 2A) and opens the stem hole when the stem 12c is pressed down (see FIG. 2B). The aerosol valve 12 may be a tilting valve in addition to a push-down type.

[0022] The injection member 14 has an annular attachment portion 14a attached to the outer periphery and upper surface of the mounting cup 12a, a shallow dish-shaped support wall 14c provided on the upper surface of the attachment portion 14a via a step portion 14b, and an operation portion 14d connected to the support wall 14c by a hinge 14c1 or the like so as to be able to swing freely. A resin hinge is used as the hinge 14c1. An opening 14c2 is formed on the upper surface of the support wall 14c through which the swingable operation portion 14d passes. The injection member 14 further has a stem attachment portion 14e attached to the stem 12c of the aerosol valve 12, a nozzle attachment portion 14f extending upward along the central axis J of the aerosol container 13, and a nozzle 15 attached to the nozzle attachment portion 14f.

[0023] The operating part 14d is pressed down to push down the stem 12c and open the aerosol valve 12. An engagement protrusion 14d1 is provided on the end of the operating part 14d opposite the hinge 14c1, which engages with the lower surface of the support wall 14c when the operating part 14d is pressed down. This engagement protrusion 14d1 is for maintaining the pressed-down state of the operating part 14d against the biasing force of the spring even if the operating part is released once it has been pressed down. This allows the entire content (aerosol composition C) of the aerosol container 13 to be sprayed.

[0024] In this embodiment, the stem mounting part 14e and the nozzle mounting part 14f are made of pipe-shaped members and are rotatably connected to the operation part 14d by a pin (14d2 in FIG. 1) or the like. Therefore, even if the operation part 14d is tilted by a pushing operation, the nozzle 15 can be maintained almost vertically (see FIG. 2B). However, the nozzle mounting part 14f may be formed integrally with the operation part 14d so that it cannot tilt (see FIG. 3A and FIG. 3B).

[0025] The inner diameter of the stem mounting part 14e is sized to closely fit with the outer diameter of the stem 12c, and the depth is shorter than the exposed length of the stem 12c minus the stem working distance. The inner diameter of the nozzle mounting part 14f is sized to closely fit with the outer diameter of the nozzle 15. The nozzle 15 fits into the nozzle mounting part 14f by about 3 to 10 mm. It is preferable that the nozzle 15 is detachable from the nozzle mounting part 14f. This allows the package size to be reduced when sold.

[0026] The nozzle 15 is a long, thin pipe-shaped member, and can be manufactured from a metal pipe or a synthetic resin tube with a smooth inner surface. An inner nozzle passage 15a runs along the axis of the nozzle 15. A tip nozzle 16 having an injection hole 16a for injecting the aerosol composition in a mist form is fitted to the upper end of the nozzle 15. This allows the inner diameter D of the injection hole 16a to be smaller than the diameter d of the inner nozzle passage 15a, making it easy to make the particle diameter of the particles injected from the injection hole (hereinafter, injected particles) a desired size. In addition, the nozzle 15 can be easily manufactured from a thin pipe. The injection hole 16a is usually formed at one place in the center of the tip nozzle 16. However, two to three, or several, small injection holes can be provided.

[0027] The ratio (L / d) of the inner diameter d of the nozzle passage 15a to the length L of the nozzle 15 is 20 to 150, preferably 25 to 140. If it is smaller than 20, the amount of spray per unit time increases, but the reach distance is not increased, and if it is larger than 150, the spray force is weak and the reach distance is not increased. In addition, the ratio (D / d) of the inner diameter d of the nozzle passage 15a to the diameter D of the spray hole 16a is 0.25 to 0.9, preferably 0.3 to 0.8. If it is smaller than 0.25, the amount of spray per unit time is too small, the spray force is weak, and the reach distance is not increased. If it is larger than 0.9, the amount of spray increases and the floor is easily wet. If the tip nozzle 16 is detachable from the nozzle 15, it is easy to replace the tip nozzle 16 with a tip nozzle 16 having a suitable size of spray hole 16a depending on the conditions of the target (room).

[0028] Unlike the aerosol product 10 in FIG. 1A, the aerosol product 10A shown in FIGS. 3A-C does not have a tip nozzle (reference numeral 16 in FIG. 1), and the tip of the nozzle 15 is closed except for the injection hole 16a (see FIG. 3C). In addition, in this aerosol product 10A, a shoulder portion is integrally molded with the pressure-resistant container 11, and a dome member (reference numeral 11b in FIG. 1) is not provided. This allows the number of parts to be reduced. Furthermore, the stem mounting portion 14e and the nozzle mounting portion 14f of the injection member 14 are integrally molded, and the upper surface of the support wall 14c is separated by an arc-shaped slit 14c3 except for the hinge 14c1. Therefore, when the operating portion 14d is pressed, the nozzle 15 also tilts according to the inclination of the operating portion 14d. The nozzle mounting portion 14f may be inclined with respect to the support wall 14c in advance, so that the nozzle 15 faces vertically when the operating portion 14d is pressed. In addition, the central axis of the nozzle mounting portion 14f is shifted slightly toward the hinge 14c1 from the central axis of the stem mounting portion 14e.

[0029] In both aerosol products 10 and 10A, the aerosol composition (contents) C filled in the aerosol container 13 is composed of a concentrate containing an active ingredient and a solvent, and a propellant that pressurizes and sprays the concentrate. The active ingredient adheres to objects such as ceilings and walls, and exerts effects such as anti-mold, disinfection, sterilization, and deodorization. Examples of active ingredients include disinfecting and bactericidal ingredients such as isopropylmethylphenol, carvacrol, thymol, triclosan, methylparaben, ethylparaben, propylparaben, butylparaben, 4-chloro-3,5-dimethylphenol, orthophenylphenol, o-cresol, m-cresol, p-cresol, benzalkonium chloride, benzalkonium methosulfate, benzethonium chloride, benzethonium methosulfate, hinokitiol, 2-mercaptobenzothiazole, 2-(4-thiazolyl)benzimidazole, 5-chloro-2-methyl-4-isothiazolin-3-one, triforine, p-chlorometaxylenol, 3-methyl-4-isopropylphenol, chlorhexidine gluconate, polylysine, chitosan, tetrahydrolinalool, and dialkyldimethylammonium chloride, as well as permethrin, pyrethrins, and allyl. Pest control ingredients such as thurin, phthalthrin, resmethrin, furamethrin, fenothrin, empenthrin, prallethrin, cyphenothrin, imiprothrin, transfluthrin, metofluthrin, dimefluthrin, and mepafluthrin, peppermint oil, orange oil, fennel oil, cinnamon oil, turpentine oil, eucalyptus oil, jasmine oil, peppermint oil, bergamot oil, lemon oil, lemongrass oil, cinnamon oil, citronella oil, and citrate. Examples of suitable fragrances include essential oils such as menthol, l-menthol, terpineol, limonene, linalool, geraniol, eugenol, menthyl acetate, benzyl benzoate, and benzyl salicylate; deodorizing ingredients such as green tea extract, persimmon tannin, lauric acid methacrylate, methyl benzoate, methyl phenylacetate, geranyl crotrate, acetophenone myristate, benzyl acetate, benzyl propionate, and silver; and various fragrances such as natural fragrances and synthetic fragrances.

[0030] The content of the active ingredient in the concentrate is preferably 0.01% by mass or more, more preferably 0.1% by mass or more, and the content of the active ingredient in the concentrate is preferably 20% by mass or less, more preferably 15% by mass or less. By having the content of the active ingredient within the above range, the effect of the active ingredient is easily obtained when the spray particles are retained in the space or adhere to the ceiling, surrounding walls, or floor.

[0031] The solvent is used as a solvent for dissolving the active ingredient, and for the purpose of adjusting the volatility of the spray particles to make them easier to adhere to the ceiling and surrounding walls. Examples of the solvent include alcohols, oils, water, and mixtures thereof. The alcohols are used for the purpose of adjusting the particle size and volatility of the spray particles. Examples of the alcohols include monohydric alcohols such as ethanol, propanol, isopropanol, isobutyl alcohol, and t-butyl alcohol, and polyhydric alcohols such as ethylene glycol, propylene glycol, 1,3-butylene glycol, glycerin, trimethylolpropane, pentaerythritol, xylitol, sorbitol, mannitol, diethylene glycol, dipropylene glycol, triethylene glycol, polypropylene glycol, diglycerin, polyethylene glycol, and triglycerin. In addition, when adjusting the quick-drying property, it is preferable to use a monohydric alcohol, and when adjusting the delay, it is preferable to use a polyhydric alcohol.

[0032] The oil agent is used for the purpose of adjusting the particle size and volatility of the spray particles, etc. Examples of the oil agent include hydrocarbons such as liquid paraffin, normal paraffin, isoparaffin, squalene, squalane, and naphthene, silicone oils such as dimethylpolysiloxane, methylphenylpolysiloxane, methylhydrogenpolysiloxane, and decamethylpolysiloxane, isopropyl myristate, cetyl octanoate, octyldodecyl myristate, isopropyl palmitate, butyl stearate, myristyl myristate, decyl oleate, cetyl lactate, myristyl lactate, isocetyl stearate, isocetyl isostearate, oleic acid, and the like. Examples of liquid oils having a melting point of less than 25° C. include ester oils such as oleyl myristate, diisobutyl adipate, diisopropyl sebacate, dioctyl sebacate, hexyldecyl myristate, isocetyl palmitate, and 2-hexyldecyl adipate, oils and fats such as avocado oil, camellia oil, turtle oil, macadamia nut oil, corn oil, mink oil, olive oil, rapeseed oil, sesame oil, castor oil, linseed oil, safflower oil, jojoba oil, malt oil, coconut oil, palm oil, and hardened castor oil, higher alcohols such as oleyl alcohol, and higher fatty acids such as oleic acid. When adjusting the quick-drying property, it is preferable to use a volatile oil, which may be mixed with a monohydric alcohol.

[0033] Water is used for the purposes of adjusting the particle size and volatility of the spray particles, increasing safety around fire, etc. Examples of water include purified water, ion-exchanged water, and alkaline ionized water.

[0034] The content of the solvent in the concentrate is preferably 70% by mass or more, more preferably 75% by mass or more, and the content of the active ingredient in the concentrate is preferably 99.9% by mass or less, more preferably 99% by mass or less. By adjusting the content of the solvent within the above range, the particle size and volatility of the spray particles can be adjusted to easily adhere to objects such as ceilings and surrounding walls. In particular, when a monohydric alcohol is contained, the spray particles that do not adhere to the object tend to volatilize during the fall, and the floor surface is less likely to become wet.

[0035] In addition to active ingredients and solvents, the concentrate can also contain surfactants and solid oils. Surfactants make it easier for spray particles to adhere to the target object. When oil and water are used as the solvent, they are used as emulsifiers to emulsify the particles. When water is used as the solvent and a lipophilic liquefied gas such as liquefied petroleum gas is used as the propellant, they emulsify the water and lipophilic liquefied gas and act as a foaming agent to foam the spray into small soap bubbles with a diameter of about 0.1 to 2 mm.

[0036] Examples of surfactants include nonionic surfactants such as alkyl glucoside, (caprylyl / capryl) glucoside, cocamide DEA, polyoxyethylene alkyl ether, polyoxyethylene polyoxypropylene alkyl ether, polyglycerin fatty acid ester, glycerin fatty acid ester, polyoxyethylene glycerin fatty acid ester, polyethylene glycol fatty acid ester, polyoxyethylene hydrogenated castor oil, polyoxyethylene alkyl ether fatty acid ester, polyoxyethylene sorbitan fatty acid ester, sorbitan fatty acid ester, and polyoxyethylene sorbit fatty acid ester; anionic surfactants such as amino acid soap, fatty acid soap, alkyl sulfate, polyoxyethylene alkyl ether sulfate, alkyl phosphate, and polyoxyethylene alkyl ether phosphate; cationic surfactants such as alkyl ammonium salt and polyoxyethylene alkylamine; and amphoteric surfactants such as imidazoline, amidobetaine, alkyl betaine, amidoamine oxide, amidosulfobetaine, fatty acid amidopropyl betaine, and carbobetaine.

[0037] The content of the surfactant in the undiluted solution is preferably 0.1% by mass or more, more preferably 0.3% by mass or more, and the content of the surfactant in the undiluted solution is preferably 10% by mass or less, more preferably 5% by mass or less. By having the content of the surfactant in the above range, the above-mentioned effects are easily obtained.

[0038] Solid oils are used for the purpose of preventing drying on the target object and sustaining the effect, etc. Solid oils are oils with a melting point of 25° C. or higher, and examples of such oils include higher alcohols such as lauryl alcohol, cetyl alcohol, stearyl alcohol, behenyl alcohol, myristyl alcohol, lanolin alcohol, hexyldodecanol, isostearyl alcohol, and octyldodecanol, higher fatty acids such as lauric acid, myristic acid, palmitic acid, stearic acid, behenic acid, isostearic acid, linoleic acid, and linolenic acid, and waxes such as beeswax, lanolin, lanolin acetate, candelilla wax, carnauba wax, spermaceti wax, and montan wax.

[0039] The content of the solid oil in the concentrate is preferably 0.1% by mass or more, more preferably 0.3% by mass or more, and the content of the solid oil in the concentrate is preferably 5% by mass or less, more preferably 3% by mass or less. By having the content of the solid oil in the above range, the above-mentioned effects are easily obtained.

[0040] The concentrate can be prepared by dissolving or emulsifying an active ingredient in a solvent. The content of the concentrate in the aerosol composition is preferably 10% by mass or more, more preferably 15% by mass or more, and the content of the concentrate in the aerosol composition is preferably 50% by mass or less, more preferably 45% by mass or less. By having the content of the concentrate in the above range, it is easy to adjust the particle size of the sprayed particles to reach high upwards, and the effect of the active ingredient is easily obtained by adhering to the ceiling, surrounding walls, floor surfaces, etc.

[0041] The propellant is filled in an aerosol container (reference numeral 13 in FIG. 1) to pressurize the contents, and when the stem 12c of the aerosol valve 12 is released, the contents are pushed out by the pressure and sprayed upward from the spray hole 16a via the nozzle 15. Examples of the propellant include liquefied petroleum gas consisting of normal butane, isobutane, propane, and mixtures thereof, dimethyl ether, hydrofluoroolefins such as trans-1,3,3,3-tetrafluoroprop-1-ene (HFO-1234ze), trans-2,3,3,3-tetrafluoroprop-1-ene (HFO-1234yf), and liquefied gases which are mixtures of these, nitrogen, carbon dioxide gas, compressed air, and compressed gases which are mixtures of these. The liquefied gas and the compressed gas may be mixed.

[0042] The content of the liquefied gas in the aerosol composition is preferably 50% by mass or more, more preferably 55% by mass or more. The content of the liquefied gas in the aerosol composition is preferably 90% by mass or less, more preferably 85% by mass or less. By adjusting the flow rate of the contents discharged from the stem hole through the nozzle passage 15a, the injection force when sprayed from the injection hole 16a, and the flow rate and particle size of the sprayed particles, the sprayed particles can be easily reached high above the injection hole 16a, and the sprayed particles can easily adhere to the ceiling and surrounding walls to obtain the effect of the active ingredient. In particular, when the content is 60% by mass or more, the sprayed particles are finely divided, and the 90% particle size (D90) in the volume cumulative distribution at a distance of 15 cm from the injection hole 16a becomes small at 10 to 90 μm, and the number of particles increases, so that the sprayed particles dispersed above tend to volatilize while falling, and the floor surface does not become sticky.

[0043] When a liquefied gas is used as the propellant, the pressure (gauge pressure) of the aerosol composition at 25°C is preferably 0.25 MPa or more, more preferably 0.30 MPa or more. The pressure of the aerosol composition is preferably 0.55 MPa or less, more preferably 0.50 MPa or less. When the pressure of the aerosol composition is within the above range, the flow rate of the contents discharged from the stem hole to the nozzle 15 is adjusted in the nozzle inner passage 15a, and the injection force can be easily adjusted to a specific range.

[0044] When compressed gas is used, the pressure in the aerosol container at 25°C is preferably 0.4 MPa or more, more preferably 0.5 MPa or more. The pressure is preferably 0.8 MPa or less, more preferably 0.7 MPa or less. If the pressure is lower than 0.4 MPa, it tends to be difficult for the sprayed particles to reach a high position. If the pressure exceeds 0.8 MPa, the sprayed material tends to spread less, and fewer particles tend to adhere to the ceiling.

[0045] The upward-spray aerosol product 10 of the present invention configured as described above can be manufactured by filling the concentrate into a pressure-resistant container 11, attaching and sealing an aerosol valve 12, filling it with a propellant, and attaching a spray member 14 to the aerosol valve 12.

[0046] The upward-jetting aerosol product 10 has a jetting force of the aerosol composition jetted from the jet hole 16a of 6 gf or more at a position 5 cm away from the jet hole 16a, and preferably 7 gf or more. When the jetting force is within the above range, when the aerosol product 10 is placed on a floor surface and jetted, the jetted material jetted upward from the jet hole 16a is likely to reach a height of 2.5 m or more, and the jetted material is likely to adhere to the ceiling or surrounding walls. The jetting force can be calculated by adjusting the aerosol product 10 to 25°C, attaching a disk with a diameter of 5.1 cm and a thickness of 1.2 cm to a digital force gauge FGP-0.5 (manufactured by Nidec-Shimpo Corporation), jetting the aerosol product from a position 5 cm away, measuring the maximum load (mN), and converting it into a jetting force (g·f).

[0047] Moreover, the upward-spraying aerosol product 10 preferably has a spray amount per unit time of 1.2 mL / sec or more, more preferably 1.4 mL / sec or more. Moreover, the spray amount per unit time is preferably 3.0 mL / sec or less, more preferably 2.8 mL / sec or less. By having the spray amount per unit time within the above range, the flow rate of the contents discharged from the stem hole to the nozzle 15 is adjusted in the nozzle inner passage 15a, making it easy to adjust the spray force within a specific range. Also, the floor surface is less wetted by the sprayed matter that falls.

[0048] [Example 1] Concentrate solution 1 in Table 1 was prepared, and 30 g of concentrate solution 1 was filled into a tinplate pressure container. An aerosol valve (stem hole: φ0.5 mm, housing lower hole: φ2.0 mm, side hole: none) was fixed to the opening of the pressure container, and 70 g of liquefied petroleum gas was filled as a propellant. An injection member of specification 1 shown in Table 3 was attached to the aerosol container, and an upward injection aerosol product was manufactured. The density of concentrate solution 1 at 25°C was 0.80 g / mL, and the density of the aerosol composition was 0.61 g / mL.

[0049] [Example 2] An upward-spraying aerosol product was produced in the same manner as in Example 1, except that a spray member of Specification 2 shown in Table 3 was used.

[0050] [Example 3] An upward-spraying aerosol product was produced in the same manner as in Example 1, except that a spray member of Specification 3 shown in Table 3 was used.

[0051] [Example 4] An upward-spraying aerosol product was produced in the same manner as in Example 1, except that a spray member of Specification 4 shown in Table 3 was used.

[0052] [Example 5] An upward-spraying aerosol product was produced in the same manner as in Example 1, except that a spray element of Specification 5 shown in Table 3 was used.

[0053] [Comparative Example 1] An upward-spraying aerosol product was produced in the same manner as in Example 1, except that a spray element of Specification 6 shown in Table 3 was used.

[0054] [Comparative Example 2] An upward-spraying aerosol product was produced in the same manner as in Example 1, except that a spray element of specification 7 shown in Table 3 was used.

[0055] [Table 1]

[0056] [Table 2]

[0057] [Table 3]

[0058] [Example 6] An upward-spray aerosol product was produced in the same manner as in Example 1, except that a spray element of specification 8 shown in Table 4 was used.

[0059] [Example 7] An upward-jet aerosol product was produced in the same manner as in Example 1, except that a jet element of Specification 9 shown in Table 4 was used.

[0060] [Example 8] An upward-jet aerosol product was produced in the same manner as in Example 1, except that a jet element of specification 10 shown in Table 4 was used.

[0061] [Example 9] An upward-jet aerosol product was produced in the same manner as in Example 1, except that a jet element of specification 11 shown in Table 4 was used.

[0062] [Comparative Example 3] An upward-jet aerosol product was produced in the same manner as in Example 1, except that a jet element of specification 12 shown in Table 4 was used.

[0063] [Comparative Example 4] An upward-jet aerosol product was produced in the same manner as in Example 1, except that a jet element of specification 13 shown in Table 4 was used.

[0064] [Table 4]

[0065] The following tests were carried out using the obtained top-spray aerosol product, and the results are shown in Tables 5 and 6.

[0066] [Jet power] Using the aerosol product that had been immersed in a constant temperature water bath at 25°C for 1 hour, a disk with a diameter of 5.1 cm and a thickness of 1.2 cm was attached to a digital force gauge FGP-0.5 (manufactured by Nidec-Shimpo Corporation), and the aerosol product was sprayed from a position 5 cm away from the disk. The maximum load (mN) was measured and converted into spray force (gf).

[0067] [Injection amount per unit time] The aerosol product was immersed in a constant temperature water bath at 25°C for 1 hour, and the amount sprayed was measured when sprayed for 3 seconds, and converted to the amount sprayed per second (g / sec). The density of the aerosol composition was calculated from the density of the concentrate, the density of the liquefied petroleum gas, and the contents of the concentrate and liquefied petroleum gas, and the amount sprayed was converted to volume (mL / sec).

[0068] [Upward reach distance] The aerosol product, which had been immersed in a 25°C thermostatic water bath for one hour, was placed on the floor and the spraying member was operated to spray upwards. A scale was placed on the back of the aerosol product to measure the distance the spray reached. ◎:3m or more ○: 2.5m or more, less than 3m △: 1.8m or more, less than 2.5m ×: Less than 1.8m

[0069] [Sticky floor surface] The material was sprayed upwards, and the stickiness of the floor surface after the spray had disappeared was evaluated. ○: The floor was not wet and was not sticky. △: The floor was slightly wet and slightly sticky. ×: The floor was wet and sticky.

[0070] [Table 5]

[0071] [Table 6]

[0072] According to the above results, in Examples 2 to 7, the upper reach was 3 m or more, and it was possible to widely spray from the ceiling to the wall surface, and the floor surface was not wet and did not become sticky, which was an excellent result. In addition, in Examples 1 and 8, results similar to those were obtained. On the other hand, in Comparative Examples 1, 3 and 4, the upper reach was 1.8 m or less, and the spray range was insufficient, and in Comparative Example 2, although the upper reach was 3 m or more, it was found that the spray amount was too large and the floor surface became sticky. [Explanation of symbols]

[0073] 10. 10A Upward-directed aerosol products 11 Pressure vessels 11a Container body 11b Dome member 11b1 Center opening 11b2 Bead 12 Aerosol valve 12a Mounting Cup 12a1 Outer edge of mounting cup 12b Housing 12c stem 13 Aerosol containers C. Aerosol Composition 14 Injection member 14a Mounting part 14b Stepped section 14c supporting wall 14c1 Hinge 14c2 opening 14c3 Slit 14d Operation section 14d1 Engagement protrusion 14d2 pin 14e Stem attachment part J center axis 14f Nozzle mounting part 15 Nozzles 15a Nozzle inner passage d Diameter of nozzle passage L Nozzle length 16 Tip nozzle 16a injection hole D Inner diameter of injection hole

Claims

1. an aerosol container comprising a pressure-resistant container and an aerosol valve attached to the pressure-resistant container; an aerosol composition filled into an aerosol container; an ejection member attached to the aerosol container; a stem mounting portion where the ejection member is mounted on the stem of the aerosol valve; A nozzle mounting portion extending in the same direction as the central axis of the aerosol container; A nozzle attached to the nozzle attachment portion; and an operating unit for opening and closing the aerosol valve, The nozzle is provided with a passage in the nozzle and an injection hole at a tip of the passage in the nozzle for injecting the aerosol composition in the form of a mist, The injection force at a position 5 cm away from the injection hole at 25°C is 6 gf or more, The ratio (L / d) of the inner diameter (d) to the length (L) of the nozzle passage is 20 to 150; The ratio (D / d) of the inner diameter (d) of the nozzle passage to the diameter (D) of the injection hole is 0.25 to 0.

9. Upward-firing aerosol products.

2. 2. The upward-jetting aerosol product according to claim 1, wherein the amount of the spray is 1.2 to 3.0 mL / sec.

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