JP2019202949A - All-quantity ejection aerosol product for mold prevention and mold prevention method - Google Patents

Abstract

To provide an all-quantity ejection aerosol product for mold prevention that can, for example, when used in an application space such as a bathroom, while applying a sufficient amount of the agent to the floor surface, allow a sufficient amount of the agent to reach and adhere also to the ceiling and wall, etc., and to provide a mold prevention method.SOLUTION: Provided is an all-quantity ejection aerosol product for mold prevention, comprising a stock solution and a propellent, and in which the stock solution contains phenolic anti-fungal agent and fatty acid ester, and the ejection speed is 10 to 35 sec/50 mL.SELECTED DRAWING: None

Description

  The present invention relates to a fungus-proof all-injection aerosol product and a fungicide method. More specifically, the present invention is an antifungal agent that can easily reach the required amount not only on the floor surface but also on the ceiling, walls, and the like and adheres the medicine when used in an application space such as a bathroom. TECHNICAL FIELD The present invention relates to a full-injection aerosol product and a mold prevention method.

  Conventionally, an antifungal agent for preventing the occurrence of mold has been developed. These fungicides are used in application spaces such as bathrooms, and are intended to prevent the occurrence of mold in the entire application space. However, in general, ceilings and walls are harder to apply a fungicide than a floor surface, and it is not easy to prevent the occurrence of mold. Therefore, Patent Document 1 discloses an antifungal method in which a fungicide is smoked or fumigated and applied to a ceiling or a wall in a bathroom. Patent Document 2 discloses a full-injection aerosol product for bathroom mold prevention, in which the mass ratio of a solvent having a predetermined boiling point and dimethyl ether is adjusted.

JP 2003-286104 A JP 2014-227369 A

  The techniques described in Patent Document 1 and Patent Document 2 can impart an antifungal component to the entire application location by soot or full-volume injection. However, these techniques are difficult to reach and attach a sufficient amount of fungicidal components to the ceiling and walls. In addition, when the design is modified to improve the amount of the anti-fungal component attached to the ceiling or wall, the amount of the anti-fungal component attached to the floor may be reduced. Therefore, the conventional technology cannot attach a sufficient amount of fungicide components not only to the floor but also to the ceiling and walls, and exhibits a sufficient fungicidal effect on the entire application location. I can't.

  The present invention has been made in view of such a conventional problem. For example, when used in an application space such as a bathroom, the ceiling or wall is applied while applying a sufficient amount of medicine to the floor surface. It is an object of the present invention to provide a fungus-proof all-injection aerosol product capable of reaching and adhering a sufficient amount of chemicals to the skin and the like, and a fungicidal method.

  As a result of intensive studies, the present inventors have sprayed an aerosol composition containing a specific fungicide and a fatty acid ester at a specific spray speed, so that the sprayed aerosol composition is applied to a bathroom or the like. It was found that the amount of adhesion to the floor surface in the space was sufficiently maintained, and it was easy to reach and adhere to the ceiling and walls, and the present invention was completed. That is, the fungus-proof all-injection aerosol product and the mold prevention method of the present invention that solve the above problems mainly include the following configurations.

  (1) An anti-mold full-injection aerosol product for fungi, comprising a stock solution and a propellant, wherein the stock solution comprises a phenolic fungicide and a fatty acid ester, and the jetting speed is 10 to 35 seconds / 50 mL.

  (2) The mold injection aerosol product for mold prevention according to (1), wherein the propellant contains trans-1,3,3,3-tetrafluoropropene and is for bathroom.

  (3) An antifungal method in which an aerosol composition containing a stock solution containing a phenolic antifungal agent and a fatty acid ester and a propellant is jetted in such a manner that the jetting speed is 10 to 35 seconds / 50 mL.

  According to the present invention, for example, when used in an application space such as a bathroom, a sufficient amount of a medicine is applied to the floor or the like while applying a sufficient amount of the medicine to the floor surface. It is possible to provide a fungus-proof all-injection aerosol product and a fungus-proofing method.

FIG. 1 is a schematic diagram of an experimental facility for measuring the adhesion amount of an aerosol composition injected from an aerosol product.

[All-injection aerosol products for mold prevention]
An all-injection aerosol product for mold prevention according to an embodiment of the present invention (hereinafter also simply referred to as an aerosol product) includes an aerosol container filled with an aerosol composition containing a stock solution and a propellant, and a valve mechanism attached to the aerosol container. And a full-quantity injection nozzle cap (hereinafter also simply referred to as a nozzle cap) attached to the stem of the valve mechanism. The stock solution contains a phenolic fungicide and a fatty acid ester. The injection speed is 10 to 35 seconds / 50 mL. Hereinafter, each configuration will be described. In addition, the following description is an illustration and the design of the aerosol container, the valve mechanism, and the nozzle cap can be appropriately changed as long as the effects of the invention are exhibited.

<Aerosol container>
An aerosol container is a pressure-resistant container for pressurizing and filling an aerosol composition. The aerosol container is a substantially cylindrical container in which a space filled with an aerosol composition is formed. An opening is provided in the upper part of the aerosol container. The opening is sealed by a valve mechanism.

  The material of the aerosol container is not particularly limited. For example, the aerosol container may be made of various metals having resistance to pressure, resin, glass, and the like.

(Aerosol composition)
An aerosol composition is the contents of an aerosol product and includes a stock solution and a propellant.

-Stock solution A stock solution is a component which can comprise an aerosol composition with a propellant. The stock solution is filled into an aerosol container when the aerosol composition is prepared. The stock solution is a composition containing a phenolic fungicide and a fatty acid ester.

  The phenolic fungicide is not particularly limited. For example, phenolic fungicides are isopropylmethylphenol, o-phenylphenol, o-phenylphenol sodium, pt-octylphenol, 2- (4-ethoxyphenyl) -2-methylpropyl-3-phenoxy. Benzyl, thymol, carvacrol, diphenylthymol, chlorophene, paraben, alkylparaben, cresol, triclosan, phenol, parachlorophenol, chlorxylenol, parachlorometaxylenol, and the like. Among these, the phenolic antifungal agent is preferably isopropylmethylphenol, triclosan, thymol, and preferably isopropylmethylphenol because it is a highly safe compound used in cosmetics and the like. More preferred.

  The content of the phenolic antifungal agent may be a content that exhibits an antifungal effect. For example, the content of the phenolic antifungal agent is preferably 0.1 w / v% (mass / volume%) or more in the aerosol composition, and preferably 0.5 w / v% or more. More preferred. Moreover, it is preferable that it is 10 w / v% or less in an aerosol composition, and, as for content of a phenol type antifungal agent, it is more preferable that it is 5.0 w / v% or less. When the content of the phenolic antifungal agent is within the above range, when the aerosol product is sprayed in an application space such as a bathroom, the sprayed aerosol composition easily reaches the ceiling, wall, etc. And it is easy to adhere. At this time, the aerosol product does not excessively reduce the amount of the aerosol composition deposited on the floor surface, and a sufficient amount can be adhered to the floor surface.

  The fatty acid ester is not particularly limited. For example, the fatty acid ester is polyoxyethylene bisphenol A laurate, butyl stearate, 2-ethylhexyl palmitate, 2-ethylhexyl stearate, monoglyceride behenate, cetyl 2-ethylhexanoate, isopropyl myristate , Isopropyl palmitate, cholesteryl isostearate, lauryl methacrylate, palm fatty acid methyl, methyl laurate, methyl oleate, methyl stearate, myristyl myristate, octyldodecyl myristate, pentaerythritol monooleate, pentaerythritol monostearate, Pentaerythritol tetrapalmitate, stearyl stearate, isotridecyl stearate, 2-ethylhexanoic acid triglyceride, Butyl phosphate, octyl oleate. Among these, fatty acid esters are highly effective in adhering phenolic fungicides to ceilings and walls, and are highly compatible, so isopropyl myristate, isopropyl palmitate, butyl stearate, isobutyl oleate It is preferable that isopropyl myristate is included. Fatty acid esters may be used in combination.

  The content of the fatty acid ester is not particularly limited. The fatty acid ester content in the aerosol composition is preferably 0.3 w / v% or more, more preferably 1 w / v% or more. Moreover, it is preferable that it is 30 w / v% or less in an aerosol composition, and, as for content of fatty acid ester, it is more preferable that it is 20 w / v% or less. When the content of the fatty acid ester is within the above range, when the aerosol product is sprayed in an application space such as a bathroom, the sprayed aerosol composition easily reaches the ceiling or wall and adheres. It's easy to do. At this time, the aerosol product does not excessively reduce the amount of the aerosol composition deposited on the floor surface, and a sufficient amount can be adhered to the floor surface.

  The phenolic antifungal component and the fatty acid ester can be used alone or in combination of two or more in the stock solution, and the blending ratio (mass ratio) is preferably 1.0: 0.5-20. 1.0: 0.75 to 10 is more preferable.

  The stock solution may contain other components as appropriate in addition to the above-mentioned phenolic fungicide and fatty acid ester. For example, other solvents other than fatty acid esters, deodorant components, aromatic components, nonionic, anionic or cationic surfactants, antioxidants such as butylhydroxytoluene; stabilization of citric acid, ascorbic acid, etc. Agents: inorganic powders such as talc and silicic acid, pigments and the like.

  The other solvent is preferably contained in order to uniformly blend an active ingredient such as a fungicide. For example, lower alcohols such as ethanol and isopropanol, polyhydric alcohols such as glycerin and ethylene glycol, linear, branched or cyclic paraffins, petroleum such as kerosene, propylene glycol monomethyl ether, dipropylene glycol dimethyl ether, etc. Glycol ethers, water and the like.

  When other solvent is contained, the content of the other solvent in the stock solution is preferably 3 parts by mass or more and more preferably 5 parts by mass or more with respect to 1 part by mass of the phenolic antifungal agent. preferable. Moreover, it is preferable that it is 98 mass parts or less with respect to 1 mass part of phenol type fungicides, and, as for content of another solvent, it is more preferable that it is 90 mass parts or less. If it is in the said range, stock solution is easy to mix | blend an active ingredient uniformly.

  The deodorant component is not particularly limited. For example, deodorant components include plant extract extracts such as camellia, rose, chrysanthemum, pine, cedar, plantain; tea extracts, catechins, plant polyphenols, plant essential oils such as linalool, menthol, borneol; lauryl methacrylate, methyl Cyclodextrin, geranyl crotonate, acetophenone myristate, paramethylacetophenone benzaldehyde and the like.

  The aromatic component is not particularly limited. For example, fragrance ingredients include savory, bergamot oil, cinnamon oil, citronella oil, lemon oil, lemongrass oil, peppermint oil, peppermint oil, spearmint oil, orange oil, eucalyptus oil, lavender oil, rush, cypress, etc. Natural fragrances such as pinene, limonene, linalool, menthol, borneol, eugenol, citronella, citral, citronellal, geraniol, undecalactone, limonene, phenethyl alcohol and the like.

  When a deodorizing component is contained, the content of the deodorizing component may be a content that exhibits a deodorizing effect. The content of the deodorant component is, for example, preferably 0.1 w / v% or more in the stock solution, and more preferably 1 w / v% or more. When the fragrance component is contained, the content of the fragrance component is preferably 0.1 w / v% or more in the aerosol composition, and more preferably 1 w / v% or more. If it is the above blending amount, a sufficient deodorizing effect and aroma can be obtained.

-Propellant A propellant is a medium for injecting the above-mentioned stock solution, and is pressurized and filled in an aerosol container together with the stock solution. The propellant is not particularly limited. For example, the propellant is hydrofluoroolefin, dimethyl ether (DME), liquefied petroleum gas (LPG), or the like. In addition, a propellant may be used together.

  The hydrofluoroolefin is exemplified by hydrofluoro-1-propene. Specifically, hydrofluoro-1-propene is trans-1,3,3,3-tetrafluoropropene (HFO-1234ze), 2,3,3,3-tetrafluoropropene, 2,3,3- Examples include trifluoropropene, 3,3,3-trifluoropropene, 1-chloro-3,3,3-trifluoropropene and the like. Among these, the propellant is trans-1,3,3,3-tetrafluoropropene from the viewpoint that the global warming potential is low and the ozone depletion potential is 0, and the fire safety that it does not ignite at room temperature is excellent. It is preferable to include.

  In addition, in addition to the said propellant (or instead of the said propellant), compressed gas, such as a carbon dioxide gas, nitrogen gas, compressed air, oxygen gas, may be used for the aerosol composition of this embodiment.

  The mixing ratio (volume ratio) of the stock solution of the aerosol composition and the propellant is preferably 1/99 to 35/65, more preferably 5/95 to 30/70, and 5/95 to 25 /. More preferably, it is 75. By setting it as such a volume ratio, an aerosol product tends to adjust the injection speed in the range mentioned later.

<Valve mechanism>
The valve mechanism is a member that closes the opening of the aerosol container, and includes a stem that is supported so as to be movable in the vertical direction while being biased upward, and a valve body that is appropriately opened and closed by the vertical movement of the stem. The valve body is formed with an under tap hole for taking in the aerosol composition from the aerosol container. Further, a vapor tap hole communicating with the gas phase portion of the aerosol container is formed in the valve body.

  The stem is formed with a stem hole for taking in the aerosol composition taken into the valve body, and an internal passage for sending the aerosol composition taken in from the stem hole to an injection nozzle of a nozzle cap described later. The internal passage is appropriately opened and closed by a stem rubber. A push button of a nozzle cap is attached to the stem.

  The vapor tap hole may be omitted, but is generally provided as appropriate in order to improve the diffusibility of the active ingredient. The dimension of the vapor tap hole (a nozzle diameter) is preferably 0.5 mm or less, and more preferably about 0.2 mm. By providing the vapor tap holes having such dimensions, it is possible to reduce the difference in adhesion amount depending on the location of the aerosol composition. A plurality of vapor tap holes may be provided.

  The size of the undertap hole (the diameter of the nozzle hole) is preferably 1.5 mm or more, more preferably 1.8 mm or more, and further preferably 2.0 mm or more. Further, the size of the undertap hole is preferably 2.5 mm or less, more preferably 2.3 mm or less, and further preferably 2.2 mm or less. When the size of the undertap hole is within the above range, the aerosol product easily adheres the drug to the ceiling or the wall more efficiently while adhering a sufficient amount of the aerosol composition to the floor surface.

Moreover, the total cross-sectional area (total opening area) of an undertap hole is not specifically limited. The total cross-sectional area is appropriately adjusted as necessary so that an injection speed described later is 10 to 35 seconds / 50 mL. As an example, the total cross-sectional area is preferably 1.7 mm ² or more, and more preferably 2.5 mm ² or more. The total cross-sectional area is preferably 5.0 mm ² or less, more preferably 4.2 mm ² or less. In the present embodiment, the “total cross-sectional area” is the total area of the cross-sectional areas (opening areas) of the undertap holes. That is, when there is one undertap hole, the total cross-sectional area is the cross-sectional area of the undertap hole itself, and when there are two or more undertap holes, the total cross-sectional area is the cross-sectional area of all undertap holes. Is the sum of

  The size of the stem hole (the diameter of the nozzle hole) is preferably 0.5 mm or more, more preferably two or more stem holes having a nozzle hole diameter of 0.5 mm, and the nozzle hole diameter is 0.5 mm. More preferably, three or more stem holes are provided. The stem hole is preferably provided with three or less 2.0 mm stem holes, more preferably three or less stem holes with a diameter of 1.5 mm. More preferably, three or less stem holes having a diameter of 1.2 mm are provided. When the size of the stem hole is within the above range, the aerosol product has an appropriate injection speed, and easily adheres to the ceiling or wall while adhering a sufficient amount of the aerosol composition to the floor surface.

Moreover, the total cross-sectional area (total opening area) of the stem hole is not particularly limited. The total cross-sectional area is appropriately adjusted as necessary so that an injection speed described later is 10 to 35 seconds / 50 mL. As an example, the total cross-sectional area is preferably 0.2 mm ² or more, and more preferably 0.39 mm ² or more. Further, the total cross-sectional area is preferably 9.5 mm ² or less, more preferably 5.3 mm ² or less. In the present embodiment, the “total cross-sectional area” is the total area of the cross-sectional areas (opening areas) of the stem holes. That is, when there is one stem hole, the total cross-sectional area is the cross-sectional area of the stem hole itself, and when there are two or more stem holes, the total cross-sectional area is the sum of the cross-sectional areas of all the stem holes. .

  In a state where the stock solution and the propellant are filled, the internal pressure of the valve body at 25 ° C. is preferably 0.2 MPa or more, and more preferably 0.25 MPa or more. Moreover, the internal pressure of the valve body at 25 ° C. is preferably 0.8 MPa or less, and more preferably 0.7 MPa or less. By adjusting the internal pressure of the valve body to such a range, when the aerosol product is used in an application space such as a bathroom, the aerosol composition can easily reach not only the floor surface but also the ceiling or wall. And easy to attach. The internal pressure of the valve body is, for example, a valve mechanism using a PGM-10KE compact pressure sensor (manufactured by Kyowa Denki Co., Ltd.) attached to a WGA-710C instrument conditioner (manufactured by Kyowa Denki Co., Ltd.) It can be measured by connecting.

<Nozzle cap>
The nozzle cap is a mechanism for injecting the entire amount of the aerosol composition filled in the aerosol container, and is attached to the stem of the valve mechanism. The nozzle cap includes a cap body attached to the upper part of the aerosol container, a push button for pressing the stem, and an injection nozzle for injecting the contents ejected from the stem by pressing the stem. A nozzle hole through which the aerosol composition is injected is formed at the tip of the injection nozzle. The nozzle cap is operated by the user to communicate between the inside of the aerosol container and the outside, and ejects the entire amount of the aerosol composition in the aerosol container.

  The nozzle cap may be provided with a lock mechanism for keeping the push button depressed. By providing the lock mechanism, the aerosol product maintains the pressed state of the stem. As a result, the valve mechanism is maintained in the open state, and the injection is continued until the aerosol composition in the aerosol container is exhausted. Thereafter, the injection of the aerosol product is terminated when the gas pressure by the propellant is sufficiently reduced.

  The number, size, and shape of the nozzle holes are not particularly limited. As an example, the number of nozzle holes may be one or two or more. Further, the size of the nozzle hole (hole diameter) is preferably 0.2 mm or more, more preferably 0.3 mm or more, and further preferably 0.5 mm or more. The nozzle diameter is preferably 3.0 mm or less, more preferably 2.0 mm or less, and further preferably 1.0 mm or less. The shape (cross-sectional shape) of the nozzle hole may be circular, elliptical, rectangular, or various indefinite shapes.

Moreover, the total cross-sectional area (total opening area) of the nozzle is not particularly limited. The total cross-sectional area is appropriately adjusted as necessary so that an injection speed described later is 10 to 35 seconds / 50 mL. As an example, the total cross-sectional area, is preferably 0.03 mm ² or more, and more preferably 0.07 mm ² or more. Further, the total cross-sectional area is preferably 7.1 mm ² or less, and more preferably 3.1 mm ² or less. In the present embodiment, the “total cross-sectional area” is the total area of the cross-sectional areas (opening areas) of the nozzle holes. That is, when there is one nozzle hole, the total sectional area is the sectional area of the nozzle hole itself, and when there are two or more nozzle holes, the total sectional area is the sum of the sectional areas of all the nozzle holes.

  The length of the injection passage in the nozzle cap is not particularly limited. The length of the injection passage is appropriately adjusted as necessary so that the injection speed described later is 10 to 35 seconds / 50 mL. As an example, the length of the injection passage is preferably 5 mm or more, and more preferably 7 mm or more. Moreover, it is preferable that the length of an injection channel is 30 mm or less, and it is more preferable that it is 25 mm or less. In the present embodiment, the “length of the injection passage” is the length from the tip of the stem to the injection port.

  In the aerosol product of the present embodiment, when the user presses the push / inject button, the valve mechanism is activated, and the inside of the aerosol container communicates with the outside. Thereby, the aerosol composition in the aerosol container is taken out according to the pressure difference between the inside of the aerosol container and the outside, and is ejected from the nozzle cap nozzle.

  The aerosol product of the present embodiment is adjusted so that the injection speed is 10 to 35 seconds / 50 mL. The injection speed may be 10 seconds / 50 mL or more, preferably 12 seconds / 50 mL or more, and more preferably 15 seconds / 50 mL or more. Moreover, the injection speed should just be 35 second / 50 mL or less, it is preferable that it is 30 second / 50 mL or less, and it is more preferable that it is 25 second / 50 mL or less. When the spraying speed is less than 10 seconds / 50 mL, the aerosol product has droplets with large particle diameters when sprayed, and falls on the aerosol product itself and the surrounding floor surface, thereby fouling the floor surface. Tend. On the other hand, when the injection speed exceeds 35 seconds / 50 mL, the aerosol product tends to have an insufficient amount of phenolic antifungal agent attached to the floor surface when used in an application space such as a bathroom.

  The aerosol product of the present embodiment is prepared by injecting a stock solution containing the above-mentioned phenolic antifungal agent and fatty acid ester with a propellant, and adjusting the injection speed at that time to be 10 to 35 seconds / 50 mL, for example, When used in an application space such as a bathroom, the aerosol composition can easily reach and adhere not only to the floor but also to the ceiling and walls. The method for adjusting the injection speed within the above range is not particularly limited. The injection speed is adjusted by adjusting the internal pressure of the aerosol valve at 25 ° C., adjusting the type, composition and blending ratio of the stock solution and the propellant, and adjusting the number, size, shape, etc. of each part in the nozzle cap. Can be adjusted as appropriate.

  The average particle diameter (D50) of the aerosol composition injected from the aerosol product of the present embodiment is not particularly limited. As an example, the average particle diameter D50 is preferably 12 μm or more, and more preferably 13 μm or more. Moreover, the average particle diameter D50 is preferably 60 μm or less, and more preferably 55 μm or less. When the average particle diameter D50 is within the above range, the aerosol product is easy to reach and adhere not only to the floor surface of the application space such as a bathroom, but also to the ceiling or wall, etc. . When the average particle size (D50) is less than 12 μm, the sprayed aerosol composition has a particle size that is too small to reach the ceiling or wall, or to the extent that it is scattered outside the room. Therefore, there is a tendency for the amount of adhesion to the floor surface to be insufficient. Moreover, in this embodiment, the average particle diameter D50 measures the particle diameter in the position of 50 cm from a nozzle hole, for example by using a laser beam diffraction type particle size measuring apparatus (LDSA-1400A Microtrac Bell Co., Ltd. product). obtain. Moreover, in this embodiment, the method of adjusting the average particle diameter D50 to the said range is not specifically limited. For example, the average particle diameter D50 is determined by the formulation of the aerosol composition (for example, the type and content of each component), the shape and dimensions of the nozzle cap (for example, the size, number, shape, etc. of the nozzle holes), or What is necessary is just to adjust by adjusting various physical properties, such as the injection quantity per unit time (injection speed) and injection pressure.

  The manufacturing method of the aerosol product of this embodiment is not specifically limited. For example, an aerosol product is manufactured by filling an aerosol container with a stock solution, closing the opening of the aerosol container by a valve mechanism, and pressurizing and filling the propellant through the nozzle cap nozzle or the valve mechanism stem. can do.

The application space of the aerosol product of this embodiment is not particularly limited. For example, the application space may be a space where mold can be generated, and is preferably a sealed space or semi-sealed space such as a bathroom, a dressing room, a kitchen, a storage room, and a toilet. The size of the space is preferably within about 32 m ³ , more preferably within 16 m ³ , and even more preferably within 10 m ³ . Depending on the space volume, the stock solution and the propellant can be adjusted as appropriate. Among these, the aerosol product is preferably for a bathroom. That is, mold tends to propagate on the wall, ceiling, floor surface, etc. in the bathroom. For such a bathroom, the aerosol product according to the present embodiment can attach the medicine not only to the floor but also to the ceiling or wall, and can exhibit an excellent antifungal effect.

<Anti-mold method>
In the mold prevention method of one embodiment of the present invention, an aerosol composition containing a stock solution containing a phenolic fungicide and a fatty acid ester and a propellant is jetted in a total amount so that the jet speed is 10 to 35 seconds / 50 mL. It is characterized by. The aerosol composition is as described above in the aerosol product embodiment. According to such a method, when used in an application space such as a bathroom, the aerosol composition easily reaches the ceiling, the wall, and the like, and the drug is easily attached. As a result, the mold prevention method of the present embodiment can exhibit an excellent mold prevention effect in the application space.

  Hereinafter, the present invention will be described more specifically with reference to examples. The present invention is not limited to these examples. Unless otherwise specified, “%” means “mass%” and “parts” means “mass parts”.

Details of the aerosol products used are shown below.
Aerosol product 1: Nozzle cap (nozzle diameter φ0.8 mm, opening area 0.50 mm ² , one nozzle hole with a circular cross-sectional shape, length of injection passage 12 mm), valve mechanism (stem hole (hole diameter 1.2 mm, 3), no vapor tap hole, under tap hole (hole diameter 2.2mm)
Aerosol product 2: Nozzle cap (nozzle diameter φ0.8 mm, opening area 0.50 mm ² , one nozzle hole having a circular cross-sectional shape, length of injection passage 12 mm), valve mechanism (stem hole (hole diameter 0.5 mm, 1), no vapor tapped hole, under tapped hole (hole diameter 2.2mm)
Aerosol product 3: Nozzle cap (nozzle diameter φ0.8 mm, opening area 0.50 mm ² , one nozzle hole having a circular cross-sectional shape, length of injection passage 12 mm), valve mechanism (stem hole (hole diameter 0.5 mm, 2), no vapor tap hole, under tap hole (hole diameter 2.2mm)
Aerosol product 4: Nozzle cap (nozzle diameter φ0.8 mm, opening area 0.50 mm ² , one nozzle hole having a circular cross-sectional shape, length of injection passage 12 mm), valve mechanism (stem hole (hole diameter 1.2 mm, 3), vapor tap hole φ0.4mm, under tap hole (hole diameter 2.2mm)

Example 1
Isopropyl methylphenol (5.0 g) and isopropyl myristate (40.0 g) were dissolved in an appropriate amount of 99.5% ethanol to prepare a stock solution of 100 mL. After 5 mL of this undiluted solution is filled into a 296 mL capacity aerosol container and a valve mechanism is attached, the propellant (trans-1,3,3) is adjusted so that the blending ratio (volume ratio) between the undiluted solution and the propellant is 10/90. , 3-tetrafluoropropene, 1234-ze) 45 mL was pressure-filled, a nozzle cap was attached, and 50 mL of an aerosol product was produced (the aerosol mechanism 1 was used for the valve mechanism and the nozzle cap). The internal pressure (25 ° C.) of the aerosol valve was 0.41 MPa. The internal pressure of the valve is 25 ° C. The PGM-10KE compact pressure sensor (manufactured by Kyowa Denki Co., Ltd.) attached to the WGA-710C instrumentation conditioner (manufactured by Kyowa Denki Co., Ltd.) is connected to the aerosol valve. Was measured.

(Examples 2-11, Comparative Examples 1-2)
An aerosol product was prepared in the same manner as in Example 1 except that the raw materials and blending amounts shown in Table 1 or Table 2 were changed.

  Using the aerosol products of Examples 1 to 11 and Comparative Examples 1 and 2, according to the following test method, the adhesion amount of the aerosol composition on the ceiling, wall and floor surface, the average of the aerosol composition injected from each aerosol product The particle size D50 and the time required to inject the entire amount of each aerosol product were measured. The results are shown in Table 1 or Table 2.

<Measurement method of adhesion amount>
FIG. 1 is a schematic diagram of an experimental facility for measuring the amount of adhesion. As shown in FIG. 1, two ceiling portions (measurement point A and measurement point B) in the bathroom (depth 160 cm, height 200 cm, width 110 cm, based on the paper surface), two back side wall portions (measurement) A filter paper with a diameter of 90 mm was attached to the point C and the measurement point D, both of which are intermediate points between the floor surface and the ceiling) and the front floor part 2 (measurement point E and measurement point F). An aerosol product was placed in the center of the floor (installation point S), and the entire amount was injected upward (approximately in the center direction of measurement point C and measurement point D) at an elevation angle of 45 °. The filter paper was collected 30 minutes after the injection, and the attached aerosol composition was extracted using acetone. The extract was concentrated under reduced pressure using a rotary evaporator, and the amount of aerosol composition deposited was measured by gas chromatography analysis. With respect to the ceiling part (measurement point A and measurement point B) and the wall part (measurement point C and measurement point D), the case where the amount of aerosol composition deposited is 0.5 μg / cm ² or more is sufficiently adhered. It was judged. Further, regarding the floor portion (measurement point E and measurement point F), it was judged that the aerosol composition adhered sufficiently when the amount of the aerosol composition deposited was 8 μg / cm ² or more.

<Measuring method of average particle diameter D50>
The average particle diameter D50 at 50 cm from the nozzle was measured using a laser diffraction type particle size measuring device (LDSA-1400A manufactured by Microtrack Bell Co., Ltd.). The measurement was performed 3 times and the average was calculated.

<Full quantity injection time>
For each aerosol product, the time (seconds) required to spray the entire volume (50 mL) was measured.

  As shown in Table 1 and Table 2, the aerosol products of Examples 1 to 11 can adhere many aerosol compositions not only on the floor surface but also on the ceiling and walls. It was thought that a sufficient fungicidal effect could be exhibited. On the other hand, the aerosol product of Comparative Example 1 that did not contain a fatty acid ester had a small amount of aerosol composition deposited on the floor surface. In addition, the aerosol product of Comparative Example 2 in which the total amount injection time was long and the injection speed was slow had a small amount of the aerosol composition deposited on the floor surface.

A ~ F Measurement point S Installation point

Claims (3)

Including stock solution and propellant,
The stock solution contains a phenolic fungicide and a fatty acid ester,
An all-injection aerosol product for mold prevention having an injection speed of 10 to 35 seconds / 50 mL. The propellant includes trans-1,3,3,3-tetrafluoropropene,
The mold spray aerosol product for mold prevention according to claim 1, which is for bathroom.   An antifungal method, in which an aerosol composition containing a stock solution containing a phenolic antifungal agent and a fatty acid ester and a propellant is jetted in a total amount of 10 to 35 seconds / 50 mL.

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