Spray-type deodorizer

Abstract

This product provides a spray-type deodorizer that is fast-acting against many odors, including aldehydes, amines, sulfurs, and fatty acids, and provides high deodorizing effect even in large spaces. [Solution] A spray-type deodorant comprising a spray container containing an aerosol composition consisting of a stock solution and a propellant, a valve assembly attached to the spray container, and a spray member attached to the valve assembly with a nozzle formed thereon, wherein the stock solution contains sulfates, organic acid salts and alcohols, and the average particle size of the spray material ejected from the nozzle is 3 to 45 μm at 25°C and a spray distance of 20 cm.

Description

Technical Field

[0001] The present invention relates to an injection-type deodorant. More specifically, the present invention relates to an injection-type deodorant that has immediate efficacy against many odors such as aldehyde-based, amine-based, sulfur-based, and fatty acids, and can obtain a high deodorizing effect even in a large space.

Background Art

[0002] Conventionally, reducing agents for reducing volatile sulfur compounds such as hydrogen sulfide, methyl mercaptan, and dimethyl sulfide are known (for example, Patent Document 1). The reducing agent for volatile sulfur compounds in Patent Document 1 contains at least one first compound selected from the group consisting of copper sulfate and copper gluconate, and at least one second compound selected from the group consisting of sulfates other than copper sulfate, gluconates other than copper gluconate, and citrates.

Prior Art Documents

Patent Documents

[0003]

Patent Document 1

Summary of the Invention

Problems to be Solved by the Invention

[0004] The reducing agent described in Patent Document 1 is dissolved or dispersed in a solvent to form a reducing solution, and the reducing solution is sprayed into the atmosphere, and the volatile sulfur compound is captured and reduced by bringing the volatile sulfur compound into contact with the reducing agent. However, there is room for improvement in the immediate efficacy and effect of the deodorizing effect of the reducing agent described in Patent Document 1.

[0005] The present invention has been made in view of such conventional problems, and an object thereof is to provide an injection-type deodorant that has immediate efficacy against many odors such as aldehyde-based, amine-based, sulfur-based, and fatty acids, and can obtain a high deodorizing effect even in a large space.

Means for Solving the Problems

[0006] The present invention, which solves the above problems, mainly comprises the following configuration.

[0007] (1) A spray-type deodorant comprising a spray container containing an aerosol composition consisting of a stock solution and a propellant, a valve assembly attached to the spray container, and a spray member attached to the valve assembly having a nozzle formed thereon, wherein the stock solution contains a sulfate, an organic acid salt and an alcohol, and the average particle size of the spray material ejected from the nozzle is 3 to 45 μm at 25°C and a spray distance of 20 cm.

[0008] With this configuration, the spray-type deodorizer has an immediate effect against many odors, including aldehydes, amines, sulfurs, and fatty acids, and can achieve a high deodorizing effect even in large spaces.

[0009] (2) The spray-type deodorant according to (1), wherein the amount of the sprayed substance per unit time is 0.5 to 3.0 g / second.

[0010] With this configuration, the spray-type deodorizer is more immediate in its effectiveness against many odors, including aldehydes, amines, sulfurs, and fatty acids, and can achieve a high level of deodorizing effect even in large spaces.

[0011] (3) The spray-type deodorant according to claim (1) or (2), wherein the spray force of the sprayed substance is 10 to 50 g·f at 25°C and a spray distance of 20 cm.

[0012] With this configuration, the spray-type deodorizer can easily deliver its sprayed particles to the object to be deodorized, and the sprayed particles can easily disperse, especially in large spaces, resulting in a quick deodorizing effect.

[0013] (4) The propellant is a liquefied gas, and the content of the liquefied gas is 50 to 90% by mass in the aerosol composition, as described in any of (1) to (3).

[0014] With this configuration, spray-type deodorizers can easily adjust the particle size of the sprayed particles, making it easier to achieve an immediate deodorizing effect. [Effects of the Invention]

[0015] According to the present invention, it is possible to provide a spray-type deodorizer that is fast-acting against many odors such as aldehydes, amines, sulfurs, and fatty acids, and that can achieve a high deodorizing effect even in large spaces. [Modes for carrying out the invention]

[0016] <Spray-type deodorizer> An embodiment of the present invention of a spray-type deodorant comprises a container containing an aerosol composition consisting of a stock solution and a propellant, a valve attached to the container, and a spray member attached to the valve with a nozzle formed thereon. The stock solution contains a sulfate, an organic acid salt, and an alcohol. The average particle size of the spray material ejected from the nozzle is 3 to 45 μm at 25°C and a spray distance of 20 cm. As a result, the spray-type deodorant of this embodiment has an immediate effect against many odors, such as aldehyde-based, amine-based, sulfur-based, and fatty acid-based odors, and a high deodorizing effect can be obtained even in large spaces. Each of these will be described below.

[0017] (Undiluted) The undiluted solution contains sulfates, organic acid salts, and alcohols.

[0018] Sulfates are used in conjunction with organic acid salts, as described later, to decompose and eliminate many odor components such as aldehydes, amines, sulfurs, and fatty acids.

[0019] Sulfates are not particularly limited. Examples include copper sulfate, sodium sulfate, magnesium sulfate, iron sulfate, zinc sulfate, aluminum sulfate, potassium aluminum sulfate, and ammonium aluminum sulfate.

[0020] The content of the sulfate is not particularly limited. For example, the content of the sulfate is preferably 0.001% by mass or more, more preferably 0.01% by mass or more in the stock solution. Also, the content of the sulfate is preferably 0.5% by mass or less, more preferably 0.2% by mass or less in the stock solution. When the content of the sulfate is within the above range, a deodorizing effect is easily obtained.

[0021] The organic acid salt is used together with the sulfate and is used for purposes such as decomposing and deodorizing many odor components such as aldehyde-based, amine-based, sulfur-based, and fatty acids.

[0022] The organic acid salt is not particularly limited. For example, the organic acid includes citrate, gluconate, and the like.

[0023] The citrate is not particularly limited. For example, the citrate includes sodium ferric citrate, ammonium ferric citrate, sodium iron citrate, ammonium iron citrate, potassium citrate, sodium citrate, ammonium citrate, and the like.

[0024] The gluconate is not particularly limited. For example, the gluconate includes gluconone, zinc gluconate, calcium gluconate, aluminum gluconate, and the like.

[0025] The content of the organic acid salt is not particularly limited. For example, the content of the organic acid salt is preferably 0.001% by mass or more, more preferably 0.01% by mass or more in the stock solution. Also, the content of the organic acid salt is preferably 0.5% by mass or less, more preferably 0.2% by mass or less in the stock solution. When the content of the organic acid salt is within the above range, a deodorizing effect is easily obtained.

[0026] Alcohol is a solvent for the sulfate, the organic acid salt, and the propellant described later. When it is sprayed from the spray nozzle to the outside, it is atomized and constitutes spray particles having a specific average particle diameter containing the sulfate and the organic acid salt.

[0027] The alcohol is not particularly limited. For example, alcohols include monohydric alcohols with 2 to 3 carbon atoms, such as ethanol and isopropanol.

[0028] The alcohol content is not particularly limited. For example, the alcohol content is preferably 50% by mass or more, and more preferably 60% by mass or more, in the undiluted solution. Furthermore, the alcohol content is preferably 99.998% by mass or less, and more preferably 99.98% by mass or less, in the undiluted solution. Having the alcohol content within the above range makes it easier to adjust the particle size of the sprayed particles and the drying properties of the spray-type deodorant.

[0029] The undiluted solution may contain water, additives, and other substances in addition to sulfates, organic acid salts, and alcohols.

[0030] Water is used as a solvent and is used for purposes such as adjusting the particle size and drying properties of the sprayed particles.

[0031] The type of water is not particularly limited. For example, purified water, deionized water, etc., can be used.

[0032] When water is present, the amount of water is not particularly limited. For example, the amount of water in the undiluted solution is preferably 1% by mass or more, and more preferably 2% by mass or more. Furthermore, the amount of water in the undiluted solution is preferably 40% by mass or less, and more preferably 30% by mass or less. By having the water content within the above range, it is easier to adjust the particle size and drying properties of the sprayed deodorant, and to adjust the duration of the deodorizing effect.

[0033] The added ingredients are used for purposes such as providing auxiliary effects other than deodorizing effects.

[0034] The additives are not particularly limited. For example, additives include oils such as hydrocarbon oils, fats and oils, ester oils and silicone oils; polyhydric alcohols such as propylene glycol, 1,3-butylene glycol, hexylene glycol and glycerin; preservatives such as phenoxyethanol and parahydroxybenzoic acid esters; and surfactants such as nonionic surfactants.

[0035] When additives are included, the amount of additives is not particularly limited. For example, the amount of additives is preferably 0.01% by mass or more, and more preferably 0.03% by mass or more, in the undiluted solution. Furthermore, the amount of additives is preferably 20% by mass or less, and more preferably 15% by mass or less, in the undiluted solution. By keeping the amount of additives within the above range, the spray-type deodorant is more likely to produce the effects of the additives.

[0036] The stock solution can be prepared by dissolving or dispersing sulfates and organic acid salts in alcohol and an appropriate solvent.

[0037] The amount of undiluted solution is not particularly limited. For example, when the aerosol composition further contains a propellant described later, and a liquefied gas is used as the propellant, the amount of undiluted solution is preferably 10% by mass or more, and more preferably 15% by mass or more. Furthermore, the amount of undiluted solution is preferably 50% by mass or less, and more preferably 45% by mass or less. When the amount of undiluted solution is within the above range, it is easier to obtain sprayed particles with a specific average particle size through atomization by the propellant, and the number of particles increases, leading to more contact with odor components and thus easier to obtain a deodorizing effect.

[0038] The concentrate is filled into containers.

[0039] The container is not particularly limited. For example, the container may be a cylindrical shape with a bottom. The material of the container is not particularly limited. For example, the material of the container may be metal such as aluminum or tinplate, various synthetic resins, pressure-resistant glass, etc.

[0040] A valve is a component used to close and seal the opening of a container. An aerosol container is a container with a valve attached to its opening and sealed. The valve mainly consists of a housing held in a mounting cup fitted to the opening of the container, a stem with a stem hole that connects the inside and outside of the aerosol container, and a stem rubber attached around the stem hole to close the stem hole. The housing contains the stem, the stem rubber, and a spring that biases the stem upward. A spraying member, which will be described later, is attached to the upper end of the stem.

[0041] (propellant) The propellant is used to create a pressure inside the aerosol container that is higher than atmospheric pressure, and to spray the aerosol composition outwards from the nozzle, thereby miniaturizing the sprayed particles to a specific average particle size. Furthermore, increasing the number of sprayed particles facilitates contact with odor components, making deodorizing effects easier to achieve. Additionally, the spray force of the propellant ejected from the nozzle is adjusted to a specific range.

[0042] The propellant is not particularly limited. For example, the propellant may be a liquefied gas, a compressed gas, or a mixture thereof. Among these, a liquefied gas is preferred as the propellant. This makes it easier to adjust the particle size of the sprayed particles in the spray-type deodorant, and makes it easier to obtain an immediate deodorizing effect.

[0043] The liquefied gas is not particularly limited. For example, liquefied petroleum gas consisting of propane, n-butane, isobutane and mixtures thereof, hydrofluoroolefins such as dimethyl ether, trans-1,3,3,3-tetrafluoropropa-1-ene (HFO-1234ze), and 2,3,3,3-tetrafluoropropa-1-ene (HFO-1234yf) are examples of liquefied gases.

[0044] The content of liquefied gas is not particularly limited. For example, the content of liquefied gas in the aerosol composition is preferably 50% by mass or more, and more preferably 55% by mass or more. Furthermore, the content of liquefied gas in the aerosol composition is preferably 90% by mass or less, and more preferably 85% by mass or less. When the content of liquefied gas is within the above range, the spray-type deodorant can easily obtain spray particles with a specific average particle size by atomizing the undiluted liquid, and the number of particles increases, leading to more contact with odor components and thus easier deodorization. In addition, the spray force of the spray can be adjusted to a specific range, making it easier for the spray particles to reach the target object, and making it easier to obtain deodorization even in large spaces.

[0045] When using liquefied gas as a propellant, the pressure inside the aerosol container is preferably 0.2 MPa or higher, and more preferably 0.3 MPa or higher, at 25°C. Furthermore, the pressure inside the aerosol container is preferably 0.6 MPa or lower, and more preferably 0.5 MPa or lower. By keeping the pressure inside the aerosol container within the above range, the spray force of the propellant can be easily adjusted to a range of 10 to 50 g·f at a spraying distance of 20 cm, allowing the sprayed particles to easily reach the object to be deodorized. In particular, even in large spaces, the sprayed particles can easily diffuse, making it easier to obtain an immediate deodorizing effect.

[0046] The compressed gas is not particularly limited. Examples include nitrogen, carbon dioxide, and compressed air.

[0047] The compressed gas is partially dissolved in the solvent, with the majority existing in the gas phase within the aerosol container. The compressed gas can pressurize the aerosol container to a predetermined pressure, adjusting the spray particles to a specific average particle size. The pressure inside the aerosol container is preferably 0.4 MPa or higher, and more preferably 0.5 MPa or higher, at 25°C. Furthermore, the pressure inside the aerosol container is preferably 0.9 MPa or lower, and more preferably 0.8 MPa or lower. By keeping the pressure inside the aerosol container within the above range, the spray-type deodorant can easily obtain spray particles with a specific average particle size by atomizing the undiluted liquid with the spraying member described later, and the number of particles increases, leading to more contact with odor components and thus easier deodorization.

[0048] The method for preparing the aerosol composition is not particularly limited. For example, an aerosol composition can be prepared by filling a container with the stock solution, then attaching a valve to the opening of the container to form an aerosol container, and filling it with a propellant through the valve. The propellant may also be filled through the gap between the valve and the opening of the container just before attaching the valve to the opening of the container.

[0049] Returning to the overall description of the spray-type deodorant, the spraying member is a component that operates the opening and closing of a valve to spray an aerosol composition consisting of a concentrate and a propellant, and is attached to the upper end of the stem. In this embodiment of the spray-type deodorant, when the spraying member is pressed down, the valve is activated and the stem hole is opened, the aerosol composition is sent to the spraying member, and then sprayed from the nozzle.

[0050] The spraying member mainly comprises a nozzle section with a spray opening and an operating section operated by the user with their finger or the like. The aerosol composition is sprayed from the spray opening (sprayed material). The number and shape of the spray openings are not particularly limited. There may be multiple spray openings. The shape of the spray openings may be approximately circular, approximately angular, etc.

[0051] The diameter of the nozzle is preferably 0.35 mm or larger, and more preferably 0.4 mm or larger. Furthermore, the diameter of the nozzle is preferably 1.2 mm or smaller, and more preferably 1.0 mm or smaller. When the diameter of the nozzle is within the above range, the average particle size of the sprayed material, the amount sprayed per unit time, and the spraying force tend to be within a preferred range, making it easier to obtain a high deodorizing effect with sulfates and organic acid salts.

[0052] The spray material ejected from the nozzle should have an average particle diameter of 3 μm or more, preferably 5 μm or more, at 25°C and a spraying distance of 20 cm. Furthermore, the average particle diameter should be 45 μm or less, preferably 40 μm or less. If the average particle diameter is less than 3 μm, the spray-type deodorant will dry too quickly, reducing contact with odor components and making it difficult to achieve a high deodorizing effect. On the other hand, if the average particle diameter exceeds 45 μm, the number of spray particles will decrease, and if sprayed into the air, they will fall quickly, reducing contact with odor components and making it difficult to achieve a high deodorizing effect. By keeping the average particle diameter within the above range, the spray-type deodorant will have increased contact with odor components, making it easier to achieve a deodorizing effect in a very short time against many odors such as aldehydes, amines, sulfurs, and fatty acids through sulfates and organic acid salts.

[0053] The amount of material sprayed from the nozzle is preferably 0.5 g / second or more, and more preferably 0.8 g / second or more. Furthermore, the amount of material sprayed per unit time is preferably 3.0 g / second or less, and more preferably 2.5 g / second. By having the amount of material sprayed per unit time within the above range, the spray-type deodorant has a large number of spray particles adjusted to a specific size, which increases contact with odor components, making it easier to obtain a deodorizing effect from sulfates and organic acid salts against many odors such as aldehydes, amines, sulfurs, and fatty acids.

[0054] The spray force of the sprayed material is preferably 10 g·f or more, and more preferably 15 g·f or more, at 25°C and a spraying distance of 20 cm. Furthermore, the spray force of the sprayed material is preferably 50 g·f or less, and more preferably 40 g·f or less, at 25°C and a spraying distance of 20 cm. By keeping the spray force within the above range, the sprayed particles of the spray-type deodorizer can easily reach the object to be deodorized, and especially even in large spaces, the sprayed particles can easily disperse, making it easier to obtain an immediate deodorizing effect. [Examples]

[0055] The present invention will be described more specifically below with reference to examples. The present invention is not limited in any way to these examples. Unless otherwise specified, "%" means "mass%" and "parts" means "parts by mass".

[0056] (Example 1) A stock solution was prepared according to the formulation (unit: mass%) listed in Table 1, and 24 g (20 mass%) of the stock solution was filled into a tin container. Next, the valve was attached to the opening of the container to seal it. Furthermore, 96 g (80 mass%) of liquefied petroleum gas was filled through the stem as a propellant. A spray-type deodorant was prepared by attaching spray member 1 (nozzle φ0.7) to the stem of the valve.

[0057] (Example 2) A spray-type deodorant was prepared in the same manner as in Example 1, except that 48 g (40% by mass) of the undiluted solution and 72 g (60% by mass) of liquefied petroleum gas were added.

[0058] (Comparative Example 1) A container was filled with 120g of the undiluted solution, and a direct-pressure pump was attached to the opening of the container to create a spray-type deodorant.

[0059] [Table 1]

[0060] Using the spray-type deodorants of Examples 1 and 2, the pressure inside the aerosol container, average particle size, spray volume per unit time, and spray force were evaluated according to the following evaluation method. For the spray-type deodorant of Comparative Example 1, only the average particle size and spray force were evaluated. The results are shown in Table 2.

[0061] <Pressure inside aerosol container> A spray-type deodorant was immersed in a constant-temperature water bath adjusted to 25°C for 30 minutes, and the pressure inside the aerosol container was measured using a pressure gauge.

[0062] <Average particle size> A spray-type deodorant was immersed in a constant-temperature water bath adjusted to 25°C for 30 minutes, and the average particle size at a distance of 20 cm from the spray nozzle was measured using an Aerotrac II spray particle size distribution analyzer (manufactured by Microtrac-Bell Co., Ltd.).

[0063] <Injection amount> A spray-type deodorant was immersed in a constant-temperature water bath adjusted to 25°C for 30 minutes, and the amount sprayed when sprayed for 10 seconds was measured to calculate the amount sprayed per second.

[0064] <Injection power> The spray-type deodorant was immersed in a constant-temperature water bath adjusted to 25°C for 30 minutes. A disc 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 spray-type deodorant was sprayed from a distance of 20 cm. The maximum load (mN) was measured and converted to spray force (g·f).

[0065] [Table 2]

[0066] The deodorizing effect was evaluated using the spray-type deodorant of Example 1 according to the following evaluation method.

[0067] <Deodorizing effect> A 100-liter sampling bag (made of vinyl alcohol-based resin) was prepared. The air inside the sampling bag was completely replaced with clean air. Odor components were supplied to the sampling bag to adjust the concentration of the odor components (initial concentration). The odor was sprayed into the sampling bag for 3 seconds from the nozzle of a spray-type deodorant, sealed, and the degree of odor was evaluated after a predetermined time at an ambient temperature of 25°C according to the following criteria. The results are shown in Table 3. Note that the amount of undiluted solution sprayed in Example 1 was 1.7 g / second × undiluted solution content of 20% × 3 seconds = 1.0 g = 1.3 mL. <Evaluation Criteria> ○: Odorless or barely perceptible (odor intensity 0 or 1) △: A faint odor that can be identified (odor intensity 2) ×: Unchanged from the initial state (odor intensity 3 or higher)

[0068] Furthermore, the odor was evaluated in the same manner as in Example 1, except that the spray-type deodorant of Comparative Example 1 was used, and the spraying member attached to the direct-pressure pump was operated to spray a volume of undiluted solution similar to that of Example 1 into the sampling bag from the spray nozzle. The spray volume of undiluted solution in Comparative Example 1 was 0.4 g / shot × 3 shots = 1.2 g = 1.5 mL.

[0069] Furthermore, Comparative Example 2 involved impregnating a 10cm square cotton ball with 5mL of the undiluted solution, and the odor was evaluated in the same manner as in Example 1, except that the cotton ball was placed inside a sampling bag.

[0070] [Table 3]

[0071] As shown in Table 3, the spray-type deodorant of Example 1 of the present invention had an average particle size of 3 to 45 μm for the sprayed material. In a large 100-liter sampling bag, it reduced the odor intensity to 0 or 1 after 1 minute for many odors, including amines, fatty acids, sulfurs, and aldehydes, demonstrating immediate effectiveness and a high deodorizing effect. On the other hand, the spray-type deodorant of Comparative Example 1, which did not contain a propellant and used a direct-pressure pump, had an average particle size of over 45 μm for the sprayed material. While it reduced the odor intensity to 0 or 1 for many odor components after 10 minutes, it was still at an odor intensity of 2 after 1 minute, indicating insufficient immediate effectiveness. In Comparative Example 2, where the undiluted solution was soaked into cotton, the amount of undiluted solution was approximately four times that of Example 1, yet the odor intensity for trimethylamine and isovaleric acid remained above 3 even after 10 minutes.

Claims

1. The device comprises a spray container containing an aerosol composition consisting of a stock liquid and a propellant, a valve assembly attached to the spray container, and a spray member attached to the valve assembly and having a nozzle formed therein. The aforementioned stock solution contains sulfates, organic acid salts, and alcohols. A spray-type deodorant wherein the average particle size of the sprayed material ejected from the nozzle is 3 to 45 μm at 25°C and a spraying distance of 20 cm.

2. The spray-type deodorant according to claim 1, wherein the amount of the sprayed substance per unit time is 0.5 to 3.0 g / second.

3. The spray-type deodorant according to claim 1 or 2, wherein the spray force of the sprayed substance is 10 to 50 g·f at 25°C and a spray distance of 20 cm.

4. The propellant is a liquefied gas. The spray-type deodorant according to claim 1, wherein the content of the liquefied gas is 50 to 90% by mass in the aerosol composition.

Images