JP6813605B2 - Deodorant aerosol - Google Patents

Description

The present invention relates to a deodorizing aerosol having an excellent immediate effect and long-lasting deodorizing effect.

As a product for deodorizing the bad odor of the toilet space, a deodorant containing a deodorant component is commercially available. Deodorants for toilet spaces include the static type, which obtains a continuous deodorant effect by allowing the deodorant component to volatilize indoors, and the spray type, which sprays the deodorant component indoors by spraying. Various types are known, but among them, deodorant is suitable for applications that require immediate effect, such as deodorizing odors after stools and deodorizing toilets with strong odors on the go. Air fresheners are known.

According to Patent Document 1, a sufficient amount of chemical particles of an air freshener is quickly diffused into a treatment space, and the malodor remaining in the air is masked by the scent of the air freshener to obtain a deodorizing effect, and after deodorization. Deodorant aerosols that quickly eliminate the scent of air fresheners have been disclosed.

International Publication No. 2017/073478

However, as in Patent Document 1, the method of rapidly diffusing the drug particles into the treatment space and then quickly eliminating the scent of the air freshener has a sufficient deodorizing effect on the continuously generated malodor. As a result, deodorization may be incomplete. However, since toilets in general houses are small spaces of about 2.5 to 3.5 m ³ , increasing the amount of drug particles released into the treatment space is a drug for users in the treatment space. There is a concern that the aroma of the particles will be strongly felt, and in particular, consumers who do not like the strong aroma will be uncomfortable.

The present invention has been made in view of the above problems, and an object of the present invention is to provide a deodorizing aerosol capable of exerting a deodorizing effect excellent in immediate effect and sustainability in a treatment space such as a toilet. And.

The characteristic configuration of the deodorant aerosol according to the present invention for solving the above problems is
An aerosol stock solution containing a deodorant component and an organic solvent, a pressure-resistant container provided with a fixed-quantity injection valve filled with a propellant, and a pressure-resistant container.
An injection button provided with an injection port connected to the fixed-quantity injection valve,
It is a deodorant aerosol equipped with
The injection capacity when the injection button is pressed once is adjusted to 0.1 to 0.4 mL, and the injection force at an injection distance of 20 cm is adjusted to be 0.3 to 10.0 g · f at 25 ° C.
When the injection button is pressed once to inject the aerosol stock solution in the pressure resistant container into a processing space of 2.5 to 3.5 m ³ , 50% by volume or more of the injected aerosol stock solution is within 60 minutes. It is configured to form adhesive particles that adhere to the exposed portion in the processing space.

The malodor in the toilet is not only retained in the air of the treatment space, but is continuously generated from the malodor source such as urine scattered and adhered to the wall surface, floor surface, etc. The present inventors considered that enhancing the deodorizing effect on the malodor generated from the malodor source adhering to the wall surface or the like leads to the improvement of the deodorizing effect on the malodor in the toilet. Therefore, in the deodorant aerosol according to the present invention, 50% by volume or more of the aerosol stock solution sprayed into the treatment space is assumed to form adhesive particles. Adhesive particles are injection particles formed when an aerosol stock solution is injected into a treatment space of 2.5 to 3.5 m ³ from a deodorant aerosol, and are exposed parts in the treatment space within 60 minutes after injection. (For example, particles adhering to the floor surface, wall surface, surface of a structure such as a toilet bowl, etc. existing in the toilet space). Therefore, both the bad odor generated from the bad odor source adhering to the exposed part and the bad odor staying in the air of the treatment space can be effectively deodorized, and the deodorizing effect of the entire treatment space can be improved. Can be improved. Further, even if the jet particles other than the adhesive particles (referred to as "plankton particles") diffuse evenly throughout the treatment space, the concentration of the aerosol stock solution in the treatment space is reduced by the amount of the adhesive particles. To. Therefore, the amount of inhaled particles of the aerosol stock solution by the user in the treatment space becomes extremely small, and it is possible to suppress the feeling of excessive aroma from the aerosol stock solution itself. Further, the deodorant aerosol according to the present invention has an injection capacity of 0.1 to 0.4 mL when the injection button is pressed once, and an injection force at an injection distance of 20 cm is 0.3 to 10 at 25 ° C. It is adjusted to be 0 g · f. By adjusting the injection capacity and the injection force in this way, adhesive particles of an appropriate size can be formed, and an excellent deodorizing effect can be obtained in a treatment space such as a toilet.

In the deodorant aerosol according to the present invention
The injected particles formed when the injection button is pressed to inject the aerosol stock solution in the pressure-resistant container have a 90% particle diameter of 40 to 60 μm in a volume integration distribution at 25 ° C. and an injection distance of 15 cm. It is preferable to have.

By adjusting the particle size of the ejected particles to the above optimum range, a part of the ejected particles becomes adhesive particles and the rest becomes suspended particles. Therefore, according to the deodorizing aerosol of the present configuration, both the malodor floating in the air of the treatment space and the malodor generated from the malodor source adhering to the exposed portion can be deodorized.

In the deodorant aerosol according to the present invention
The volume ratio (a / b) of the aerosol stock solution (a) and the propellant (b) sealed in the pressure-resistant container is preferably 10/90 to 50/50.

According to the deodorant aerosol of this configuration, when the volume ratio (a / b) of the aerosol stock solution (a) and the propellant (b) is in the above range, the adhesiveness formed from the injected aerosol stock solution The balance between the particles and the airborne particles is optimal. As a result, the adhesive particles can surely reach the exposed portion in the treatment space, and the floating particles can float in the treatment space in an amount that does not cause discomfort due to the excessive aroma. As described above, the adhesive particles and the floating particles are present in the optimum state, and the effects of the deodorant components can be maximized by sharing the roles of each.

In the deodorant aerosol according to the present invention
The organic solvent is preferably at least one selected from the group consisting of higher fatty acid esters and alcohols.

According to the deodorant aerosol of this constitution, the effect of each component can be efficiently exhibited by using a higher fatty acid ester or alcohol as an organic solvent. Further, when the aerosol stock solution is sprayed, adherent particles and suspended particles can be formed in a well-balanced manner, and the deodorizing effect becomes stable.

In the deodorant aerosol according to the present invention
The deodorant component preferably contains a plant extract and a harmonized fragrance.

According to the deodorizing aerosol of this configuration, the harmonized fragrance is harmonized with the malodor such as manure odor in the toilet, and the sensory deodorizing effect of recognizing the malodor as a good odor can be obtained.

In the deodorant aerosol according to the present invention
The injection port preferably has an injection port diameter of 0.2 to 1.0 mm.

According to the deodorant aerosol of this configuration, when the nozzle diameter is in the above range, the balance between the adhesive particles and the floating particles formed from the injected aerosol stock solution is more optimized.

In the deodorant aerosol according to the present invention
The aerosol stock solution preferably further contains green leaf alcohol and / or green leaf aldehyde.

According to the deodorant aerosol of this configuration, a treatment space in which the aerosol stock solution is sprayed from the deodorant aerosol by containing green leaf alcohol and green leaf aldehyde, which are expected to have relaxing effects such as reduction of fatigue and stress, in the aerosol stock solution. Can be made into a more comfortable space.

In the deodorant aerosol according to the present invention
The injected aerosol stock solution is preferably diffused throughout the treatment space by 120 seconds later.

According to the deodorant aerosol of this configuration, the sprayed aerosol stock solution diffuses evenly over the entire treatment space within 120 seconds, so that the malodor that stays near the ceiling and the vicinity of the floor surface within the normal toilet usage time of a person It is possible to exert an excellent deodorizing effect with an immediate effect on any of the malodors that stay in the toilet.

In the deodorant aerosol according to the present invention, the concentration in the air of the aerosol stock solution is preferably 0.0007 ppm or more in 95% or more of the treatment space within 120 seconds after injection.

According to the deodorant aerosol of this configuration, the air concentration of the aerosol stock solution becomes 0.0007 ppm or more in 95% or more of the treatment space within 120 seconds after the injection, so that the floor surface from the vicinity of the ceiling of the treatment space Adhesive particles can be formed evenly to the vicinity.

In the deodorant aerosol according to the present invention
The treatment space is preferably a toilet.

According to the deodorant aerosol of this configuration, the adhesive particles adhere to the exposed parts of the wall surface, floor surface, toilet bowl, etc. of the toilet, so that the malodor generated from the malodor source adhering to the exposed parts is sustained. Deodorant effect can be obtained.

FIG. 1 is an explanatory diagram of a diffusion simulation when a deodorant aerosol according to the present invention is injected into a processing space of 3 m ³ .

The deodorant aerosol of the present invention is a pressure-resistant container provided with a metering injection valve in which an aerosol stock solution containing a deodorizing component and an organic solvent and a propellant are sealed, and an injection port connected to the metering injection valve. When the injection button is pressed to inject the aerosol stock solution in the pressure-resistant container, 50% by volume or more of the injected aerosol stock solution can be formed as adhesive particles. The adherent particles, of injection particles formed upon ejection from deodorant aerosol aerosol stock solution processing space 2.5～3.5M ^3, the exposed portion of the processing space within 60 minutes after injection It is an aerosol that adheres to. Hereinafter, the deodorant aerosol of the present invention will be described. However, the present invention is not intended to be limited to the configurations described in the embodiments and drawings described below.

<Aerosol stock solution>
[Deodorant ingredient]
The deodorant component, which is one of the main components of the aerosol stock solution, preferably contains a plant deodorant component and a harmonized fragrance. The plant deodorant component has a so-called chemical deodorizing effect of deodorizing a malodor by reacting with an odorous substance exhibiting a malodor. As such a plant deodorant component, extracts such as forsythia viridis, ginkgo biloba, and figs are preferably selected. These botanical deodorant components can be used alone or in a mixed state. In particular, it is preferable to use a plant deodorant component that reacts with either an acid gas or an alkaline gas to neutralize it. Alternatively, a plant deodorant component that neutralizes acid gas and a plant deodorant component that neutralizes alkaline gas may be mixed and used.

Harmonized fragrances are fragrances that are scented with the intention of converting malodors such as manure odors into good scents (fragrances) by incorporating them as one of the scent components. Therefore, the harmonized fragrance has a sensory deodorizing effect that is perceived as a good scent by humans by smelling it in an environment where a bad odor, which is one of the components of the scent, exists. Hereinafter, the reduction of discomfort due to a bad odor by the sensory deodorizing effect is expressed as harmonizing the bad odor.

[Organic solvent]
The organic solvent, which is another main component of the aerosol stock solution, can dissolve the above deodorant components to prepare the aerosol stock solution, and when the prepared aerosol stock solution is sprayed into the treatment space, the optimum particles are produced. What can be formed is used. As the organic solvent, higher fatty acid esters and alcohols are preferable. The higher fatty acid ester preferably has a total number of carbon atoms of 16 to 20, and examples thereof include isopropyl myristate, butyl myristate, hexyl laurate, and isopropyl palmitate. Of these, isopropyl myristate is particularly suitable. As the alcohols, lower alcohols having 2 to 3 carbon atoms are preferable, and examples thereof include ethanol, isopropanol and propanol. Of these, ethanol is particularly suitable. As the organic solvent, for example, a hydrocarbon solvent such as n-paraffin and isoparaffin, glycol ethers having 3 to 6 carbon atoms, a ketone solvent and the like can be mixed.

[Other ingredients]
In addition to the above components, the deodorant aerosol of the present invention has antifungal agents, antibacterial agents, bactericidal agents, stabilizers, antistatic agents, defoaming agents, and shaping agents for fragrances, fungi, and fungi. Agents and the like can also be appropriately added to the aerosol stock solution. For example, when the aerosol stock solution contains an air freshener, it is possible to mask the malodor floating in the treatment space due to the aroma of the air freshener. Air fresheners include orange oil, lemon oil, lavender oil, peppermint oil, eucalyptus oil, citronella oil, lime oil, yuzu oil, jasmine oil, cypress oil, green tea essential oil, limonene, α-pinene, linalol, geraniol, phenylethyl. Examples include aromatic components such as alcohol, amylcinnamic aldehyde, cumin aldehyde, and benzyl acetate, green leaf alcohol (cis-3-hexenol) called "green scent", and fragrance components containing green leaf aldehyde. By blending the fragrance to make the aerosol stock solution scented with citrus, rose, lavender, etc., it is possible to satisfy the taste of consumers. In addition, by blending green leaf alcohol, which is expected to have relaxing effects such as reduction of fatigue and stress, the toilet can be made a more comfortable space when the deodorant aerosol is sprayed onto the toilet. Antifungal agents, antibacterial agents, and bactericidal agents include hinokithiol, 2-mercaptobenzothiazole, 2- (4-thiazolinyl) benzimidazole, 5-chloro-2-methyl-4-isothiazolin-3-one, trifoline, 3 -Methyl-4-isopropylphenol, ortho-phenylphenol and the like can be mentioned.

<Injector>
Examples of the propellant used in the deodorant aerosol of the present invention include liquefied petroleum gas (LPG), dimethyl ether (DME), nitrogen gas, carbon dioxide gas, nitrous oxide, compressed air and the like. The above propellant can be used alone or in a mixed state, but one containing LPG as a main component is easy to use.

The deodorant aerosol of the present invention is adjusted so that the volume ratio (a / b) of the aerosol stock solution (a) and the propellant (b) is 10/90 to 50/50. By adjusting to such a range, at least a part of the injected aerosol stock solution can be formed as adhesive particles. As a result, the adhesive particles can surely reach the exposed portion in the treatment space, and the floating particles can float in the treatment space in an amount that does not cause discomfort due to the excessive aroma. Further, when both the adhesive particles and the floating particles are formed, the balance between the two is optimal. As described above, the adhesive particles and the floating particles each exist in an optimum state, and the roles of each can be shared to maximize the deodorizing effect. When the volume ratio (a / b) is made smaller than 10/90, that is, when the ratio of the propellant (b) sealed in the pressure-resistant container is increased, the injected aerosol stock solution becomes finer than necessary, so that it adheres. The number of aerosol particles decreases. As a result, the amount of adhesive particles adhering to the exposed portion in the processing space is insufficient, so that the malodor continuously generated from the malodor source adhering to the exposed portion cannot be sufficiently deodorized, and the deodorizing effect is achieved. May lack sustainability. On the other hand, when the volume ratio (a / b) is made larger than 50/50, that is, the ratio of the propellant (b) sealed in the pressure-resistant container is made smaller, the injected aerosol stock solution has a particle size in an optimum range. Since it is difficult to form as adhesive particles and floating particles, the aerosol stock solution settles immediately after being sprayed. Therefore, the amount of planktonic particles floating in the treatment space is insufficient, and it becomes difficult to quickly deodorize the malodor.

<Aerosol for deodorant>
As described above, an aerosol product is completed by selecting a deodorant component, an organic solvent, a propellant, and other components to be blended as necessary and enclosing them in a pressure-resistant container. This aerosol product is the deodorizing aerosol of the present invention, and injects an aerosol stock solution into a treatment space. The aerosol stock solution is mainly composed of a deodorant component and an organic solvent, and is strictly different from the propellant. However, the aerosol stock solution is released to the outside of the pressure-resistant container at the same time as the propellant. Therefore, in the following description, the aerosol content containing the aerosol stock solution and the propellant may be treated as an "aerosol stock solution".

Here, the injection valve included in the deodorant aerosol according to the present invention will be described. The deodorant aerosol according to the present invention is mainly composed of a pressure-resistant container (aerosol container), a fixed-quantity injection valve, and an injection button. An injection button, which is an operating unit for injecting the aerosol stock solution, is connected to the metering injection valve, and the injection button is provided with an injection port for ejecting the aerosol stock solution from the aerosol container to the outside (processing space). is there.

When the injection button of the deodorant aerosol is pressed once, the fixed quantity injection valve is operated by the pressure of the propellant, and the aerosol stock solution in the pressure resistant container rises to the injection port and is injected into the processing space. The injection volume of the aerosol stock solution at this time is adjusted to 0.1 to 0.4 mL, and more preferably 0.2 to 0.4 mL. Within such a range, at least a part of the aerosol stock solution is formed as adhesive particles. Further, when both the adhesive particles and the floating particles are formed, each of them is formed in a well-balanced manner so that the deodorizing effect can be optimally exhibited in the treatment space. If the injection capacity is less than 0.1 mL, the injection capacity is too small, and the adherent particles do not sufficiently adhere to the exposed portion in the processing space, and are continuously generated from the malodor source adhering to the exposed portion. It becomes difficult to deodorize the bad odor. In addition, since the number of floating particles is reduced, the deodorization of the malodor floating in the air in the treatment space is insufficient. On the other hand, if the injection capacity exceeds 0.4 mL, the aerosol stock solution is released more than necessary into the treatment space, which may cause discomfort to consumers who do not like strong aroma, and the amount of the aerosol stock solution used is also large. It is economically disadvantageous because it becomes excessive.

The deodorant aerosol is adjusted so that the injection force at a distance of 20 cm from the injection port is 0.3 to 10.0 g · f at 25 ° C. Within such a range, the adhesive particles formed from the aerosol stock solution can be smoothly reached to the exposed portion in the treatment space by one injection, and the effect of the deodorant component can be quickly exerted. Can be done. Further, the injection port diameter of the injection port is preferably set to 0.2 to 1.0 mm. Within this range, the above particle size and injection force can be appropriately adjusted, and at least a part of the aerosol stock solution injected into the treatment space is optimally formed as adhesive particles and adheres to the exposed portion. It is possible to deodorize the malodor that is continuously generated from the malodor source.

The particle size of the injected particles ejected from the deodorizing aerosol is preferably adjusted so that the 90% particle size in the integrated volume distribution at 25 ° C. and an injection distance of 15 cm is adjusted to 40 to 60 μm. Within such a range, when the aerosol stock solution is sprayed into the treatment space of 2.5 to 3.5 m ³ , 50% by volume or more of the sprayed aerosol stock solution can be formed as adhesive particles. A sufficient amount of adhesive particles can quickly move to and adhere to the exposed portion in the treatment space. Therefore, the malodor continuously generated from the malodor source adhering to the exposed portion can be deodorized by the deodorizing component of the adhesive particles. If the particle size of the ejected particles is less than 40 μm at 90% particle size in the integrated volume distribution at 25 ° C. and an injection distance of 15 cm, the particle size is too small, and it becomes difficult for many particles to reach the exposed portion. Not enough adhesive particles are formed. As a result, it becomes difficult to effectively deodorize the malodor continuously generated from the malodor source adhering to the exposed portion. On the other hand, when the particle size exceeds 60 μm, the particle size is too large, so that it becomes difficult to control the behavior of the adherent particles, and it becomes difficult to properly adhere to the exposed portion.

Further, it is more preferable that the particle diameter of the injected particles is adjusted so that the 10% particle diameter in the integrated volume distribution at 25 ° C. and the injection distance of 15 cm is 5 μm or less, and the 50% particle diameter is 20 to 40 μm. The jet particles having such an integrated volume distribution have a broad particle diameter distribution width. As a result, when the aerosol stock solution is sprayed once into the treatment space from the deodorant aerosol, adhesive particles having a relatively large particle size and floating particles having a relatively small particle size are formed.

Since the floating particles are formed with a particle size smaller than that of the adhesive particles, when the aerosol stock solution is sprayed into the treatment space, it can be rapidly diffused and suspended in the treatment space. Therefore, the malodor that stays in the air in the treatment space can be deodorized by the deodorizing component of the planktonic particles. In this way, by adjusting the particle size to the optimum range as described above so that a part of the injected aerosol stock solution forms floating particles, the floating particles are different from the adhesive particles. It comes to show behavior and can effectively deodorize bad odors together with adhesive particles.

<Diffusion simulation>
FIG. 1 is an explanatory diagram of a diffusion simulation when a deodorant aerosol according to the present invention is injected into a processing space of 3 m ³ . The drug concentration analysis method used in the diffusion simulation of FIG. 1 will be described below.

In analyzing the drug concentration, the situation in which the drug (aerosol stock solution) diffuses with the progress of time was output as the analysis result. First, the spatial distribution of wind speed, temperature, etc. is analyzed by the airflow calculation means until it reaches a steady state, then the drug is generated from the aerosol product, and the drug is generated by the concentration calculation means using the analyzed wind speed distribution, etc. The spatial distribution of concentrations was predicted by steady-state analysis. In addition, changes in concentration distribution over time were predicted by unsteady analysis.

In the simulation space, the airflow calculation means disperses the three-dimensional convection-diffusion equation by the finite difference method and solves it numerically to obtain the airflow velocity, airflow direction (wind velocity, wind direction), and air temperature (hereinafter, "airflow"). It is a means to find (sometimes called "state"). The airflow calculation means is a k-ε turbulence model based on the Navier-Stokes equation with each motion element of the velocity and direction of the airflow and pressure as variables (momentum transport equation (1), turbulence energy transport equation (2)). , And the transport equation of turbulence dissipation rate (3)), the transport equation of calorie (4), and the convection-diffusion equation composed of continuous equations (5) to (8). When the wind velocity, wind direction, temperature, and wind pressure between the grid points in the region are in a predetermined equilibrium state by performing repeated calculations for each minute time using numerical analysis by the finite difference method. In, the value is configured to be able to be determined as the predicted wind velocity data, the predicted wind direction data, and the predicted temperature data of each of the grid points.
[Momentum transport equation]

〔乱流エネルギーの輸送方程式〕

[Turbulent energy transport equation]

〔乱流消散率の輸送方程式〕

[Turbulence dissipation rate transport equation]

〔熱量の輸送方程式〕

[Chemical transport equation]

〔連続の式〕

[Continuity equation]

C ₁ , C ₂ , C ₃ , C _t : Constant U _i : Each component of the instantaneous wind velocity vector of the airflow P: Wind pressure ρ: Air density ν: Dynamic viscosity coefficient ν _t : Vortex viscosity coefficient k: Turbulence energy ε: Turbulence dissipation rate

The concentration calculation means is a means for obtaining the concentration distribution of the target drug in the simulation space by decentralizing the three-dimensional concentration diffusion governing equation by the finite difference method and solving it numerically. That is, when the concentration calculation means is given the airflow state (predicted wind velocity data, predicted wind direction data, and predicted temperature data) at each lattice point in the calculated microdivision region, and the amount of diffused material generated, The concentration diffusion governing equation, which consists of the drug (diffusion substance) transport equation (9), is repeatedly calculated for each minute time between adjacent lattice points in each microdivision region using numerical analysis by the finite difference method. When the drug concentration between the lattice points is in an equilibrium state, the value can be used as a constant solution of the predicted drug concentration data of each lattice point. Further, in the process of performing the iterative calculation, the unsteady solution of the predicted drug concentration data is determined by recording the integrated value of the minute time and the drug concentration of each microdivision region at that time at predetermined fixed time intervals. It is also possible. Further, by setting the amount of diffusing substance generated to be a dimensionless amount, it is possible to predict the predicted drug concentration data not as an absolute value but as a relative value corresponding to the amount of diffusing substance generated.
[Diffusion substance transport equation]

U _j : Each component of the instantaneous wind speed vector of the airflow C: Concentration per unit volume of the diffusing substance d: Generation term of the diffusing substance D _m : Diffusion coefficient

As shown in FIG. 1A, the analysis target is the user 2 in a processing space (width 78 cm × depth 169 cm × ceiling height 230 cm) of about 3 m ³ , and the deodorant aerosol 1 with the injection port 1a facing diagonally upward. The analysis shape was set. This analysis shape and processing space were divided into analysis grids.

The analysis conditions were set to a wind speed of 0 m / sec, and the effects of heat generation and temperature inside and outside the room were ignored. From the injection port 1a of the deodorant aerosol 1, the injection capacity per injection is set to 0.2 mL, and the injection force at a distance of 20 cm from the injection port is set to 2.9 g · f at 25 ° C., and the aerosol stock solution is injected. Then, the spatial distribution of the air concentration of the diffused aerosol stock solution was analyzed.

FIG. 1B shows the aerosol stock solution 10 seconds, 30 seconds, 60 seconds, 120 seconds, and 170 seconds after the aerosol stock solution was once injected into the treatment space from the deodorizing aerosol 1. It is a result image of the diffusion simulation which shows the air concentration (ppm). In FIG. 1B, reference numeral A is attached to a region in which the air concentration of the aerosol stock solution is 0.0007 ppm in each image. According to the above analysis, as shown in FIG. 1 (b), the aerosol stock solution diffuses rapidly after injection, reaches from the ceiling surface to the floor surface of the treatment space 60 seconds after injection, and 120 seconds after injection. Later, we obtained the result that diffusion progressed throughout the processing space. Here, "diffusing throughout the processing space" means that, as shown in the image after 120 seconds in FIG. 1 (b), the air concentration of the aerosol stock solution is 0.0007 ppm or more in a volume of 95% or more of the processing space. It is in a state. By the way, since a person's normal toilet usage time is about 5 to 15 minutes, if the diffusion time of the aerosol stock solution in the entire toilet space is 120 seconds, deodorization can be sufficiently performed within the toilet usage time. .. Further, 170 seconds after the injection, the aerosol stock solution is diffused until the concentration of the aerosol stock solution in the entire treatment space becomes uniform. Therefore, when a sufficient time elapses after the injection, the adherent particles are completely adhered to all the surfaces of the wall surface, the floor surface, and the ceiling surface in the treatment space, and the adhered particles are maintained in the adhered state. Then, as described above, the deodorant component continuously deodorizes the malodor continuously generated from the malodor source adhering to the exposed portion.

On the other hand, the floating particles gradually volatilize the deodorant component and deodorize the malodor accumulated in the air of the treatment space. In particular, bad odors in toilets include urine odor due to ammonia, etc., and fecal odor due to hydrogen sulfide, methyl mercaptan, etc. Ammonia is lighter than air and tends to stay near the ceiling, and hydrogen sulfide and methyl mercaptan are more than air. It is heavy and tends to stay near the floor. However, as shown in FIG. 1 (b), the aerosol stock solution injected from the deodorant aerosol 1 diffuses evenly over the entire processing space within 120 seconds after the injection, so that the malodor that stays near the ceiling and the floor Any of the malodors that stay near the surface can be deodorized by the floating particles. Ammonia is an alkaline gas, and hydrogen sulfide and methyl mercaptan are acid gases. Since the aerosol stock solution contains a deodorant component that can react with both alkaline gas and acid gas to neutralize, any kind of odorous substance can be deodorized by chemical deodorization. The deodorant components include a mixture of a plant deodorant component that can be neutralized by reacting with an alkaline gas and a plant deodorant component that can be neutralized by reacting with an acid gas, or an alkaline gas and It is preferable to use a vegetable deodorant component that can react with any of the acid gases to neutralize.

As described above, in the deodorant aerosol according to the present invention, since the particles formed from the injected aerosol stock solution are two types of particles having different behaviors, each particle exists in an optimum state and plays a role in each. The deodorant effect can be maximized by sharing the above. Therefore, the adhesive particles and the floating particles have an excellent deodorizing effect on both the malodor that stays in the air in the treatment space and the odor generated from the malodor source adhering to the exposed portion in the treatment space. Can be demonstrated.

When the injection capacity and the injection force are set smaller than those of the diffusion simulation shown in FIG. 1 as the analysis conditions, for example, the injection capacity per injection is 0.1 mL, and the injection force at a distance of 20 cm from the injection port is set. In the model set to 0.4 g · f at 25 ° C., the result of the diffusion simulation that the aerosol stock solution rapidly diffuses to the entire processing space was obtained as in the diffusion simulation shown in FIG. When the injection capacity and the injection force are set larger than those of the diffusion simulation shown in FIG. 1, for example, the injection capacity per injection is 0.4 mL, and the injection force at a distance of 20 cm from the injection port is 7.0 g at 25 ° C. -In the model set to f, the result of the diffusion simulation that the aerosol stock solution rapidly diffuses to the entire processing space was obtained as in the diffusion simulation shown in FIG.

As described above, by injecting the aerosol stock solution once from the deodorizing aerosol according to the present invention into the treatment space of 2.5 to 3.5 m ³ , a deodorizing effect having excellent immediate effect and sustainability can be obtained. .. The space of 2.5 to 3.5 m ³ roughly corresponds to the size of a toilet space (width 80 to 85 cm x depth 140 to 180 cm x ceiling height 230 cm) of a general house. Therefore, the deodorant aerosol according to the present invention can quickly deodorize a bad odor in a toilet or the like of a general house, and the deodorizing effect can be maintained for a long time. In addition, some of the particles formed by the aerosol stock solution injected from the deodorant aerosol according to the present invention into the treatment space are formed as floating particles. Therefore, the concentration of the aerosol stock solution (suspended particles) diffused in the treatment space is reduced by the amount of the adhesive particles, and the concentration in the treatment space is low. Therefore, the aroma from the floating particles is reduced, and it is possible to suppress discomfort to consumers who do not like strong aroma.

<Measurement of injection force and particle size>
Deodorant aerosols (Examples 1 to 3) having the characteristic configuration of the present invention were prepared, and the injection force was measured. Further, with respect to the deodorizing aerosol of Example 1, the particle size of the injected particles was measured. The aerosol stock solution of the deodorant aerosol contains 1.35 g (10 w / v%) of plant extract as a deodorant component, 0.4 g (3 w / v%) of harmonized fragrance, and ethanol (anhydrous) as an organic solvent. The balance was mixed to prepare a total volume of 13.5 mL.

The aerosol stock solution (a) and the propellant are filled with 13.5 mL of the aerosol stock solution together with 31.5 mL of the propellant (LPG gas as the main agent) in an aerosol can with a fixed-quantity injection valve (0.2 mL / push) at an internal pressure of 0.46 MPa. A 45 mL deodorant aerosol having a volume ratio (a / b) of 30/70 with (b) was prepared, and this was designated as Example 1.

The aerosol stock solution (a) and the propellant are filled with 13.5 mL of the aerosol stock solution together with 31.5 mL of the propellant (LPG gas as the main agent) in an aerosol can with a fixed-quantity injection valve (0.1 mL / push) at an internal pressure of 0.35 MPa. A 45 mL deodorant aerosol having a volume ratio (a / b) of 30/70 with (b) was prepared, and this was designated as Example 2.

The aerosol stock solution (a) and the propellant are filled with 13.5 mL of the aerosol stock solution together with 31.5 mL of the propellant (LPG gas as the main agent) in an aerosol can with a fixed-quantity injection valve (0.4 mL / push) at an internal pressure of 0.50 MPa. A 45 mL deodorant aerosol having a volume ratio (a / b) of 30/70 with (b) was prepared, and this was designated as Example 3.

The injection force was measured by pressing the injection button of the deodorant aerosol of Example 1 once and injecting it onto the measurement surface of Tencilon (measuring device) at a distance of 5 cm, 10 cm, and 20 cm from the injection port. .. As a result of the measurement, the injection force at a distance of 5 cm from the injection port was 3.2 g · f at 25 ° C., and the injection force at a distance of 10 cm from the injection port was 3.2 g · f at a distance of 25 ° C. The injection force at a distance of 20 cm from the injection port was 2.9 g · f at 25 ° C.

The injection force of the deodorant aerosols of Examples 2 and 3 was measured by pressing the respective injection buttons once and injecting them onto the measurement surface of Tencilon (measuring device) at a distance of 20 cm from the injection port. As a result of the measurement, the injection force at a distance of 20 cm from the injection port of the deodorant aerosol of Example 2 was 0.4 g · f at 25 ° C. The injection force of the deodorant aerosol of Example 3 at a distance of 20 cm from the injection port was 7.0 g · f at 25 ° C.

The particle size was measured by pressing the injection button of the deodorant aerosol of Example 1 once and using a laser diffraction / scattering method at a distance of 15 cm from the injection port. As a result of the measurement, the 10% particle diameter (Dv10) was 2.5 μm, the 50% particle diameter (Dv50) was 33.2 μm, and the 90% particle diameter (Dv90) was 53.4 μm in the integrated volume distribution.

<Deodorant efficacy test>
Regarding the deodorant aerosol of the present invention, in order to confirm the deodorant effect, a deodorant aerosol prepared in the same manner as in Example 1 (Examples 4 and 5) was prepared, and a deodorant efficacy test was carried out by an olfactory measurement method. did. For comparison, a deodorant aerosol (Comparative Example 1) having a component different from that of the present invention was prepared, and the same deodorant efficacy test was carried out.

A deodorant aerosol was prepared using the same raw materials and manufacturing method as the deodorant aerosol of Example 1 except that a trace amount of citrus fragrance was added as an air freshener to the aerosol stock solution, and this was designated as Example 4. A deodorant aerosol was prepared using the same raw materials and manufacturing method as the deodorant aerosol of Example 1 except that a small amount of orange fragrance was added as an air freshener to the aerosol stock solution, and this was designated as Example 5.

In Comparative Example 1, a conventionally commercially available deodorant aerosol containing a fatty acid salt as a deodorant component, a quaternary ammonium salt as a bactericidal component, and ethanol as an organic solvent was used.

In the deodorizing efficacy test, a predetermined amount of an odorous substance exhibiting a simulated manure odor was sprayed in a treatment space of 3 m ³ . Then, the deodorant aerosol is injected once in the treatment space to remove the odor in the treatment space immediately after the injection (0 minutes), 5 minutes, 10 minutes, 20 minutes, 30 minutes, and 60 minutes. , Panelists evaluated by 9-step comfort / discomfort display method. However, since the deodorant aerosol of Comparative Example 1 is an aerosol product not provided with a fixed-quantity injection valve, continuous injection for 1 second is performed according to the usage of Comparative Example 1 instead of one fixed-quantity injection. did. The injection amount was determined from the difference in weight of the deodorant aerosol measured before and after the injection.

The evaluation criteria of the 9-step pleasant / unpleasant degree display method are based on the efficacy test method of the Air Freshener Deodorant Council, "+4: Extremely pleasant", "+3: Very pleasant", "+2: Pleasant", "+1: Somewhat pleasant", "0: Neither pleasant nor unpleasant", "-1: Somewhat unpleasant", "-2: Unpleasant", "-3: Very unpleasant", "-4: Extremely unpleasant" did. The evaluation when the deodorant aerosol was not treated after spraying the odorous substance was -3. Table 1 shows the results (pleasure / discomfort) of the deodorant efficacy test in Examples 4, 5 and Comparative Example 1.

As a result of the deodorant efficacy test, none of Examples 4 and 5 fell below the evaluation of "+1: Slightly pleasant" during the entire test period. Specifically, the deodorant aerosol of Example 4 was confirmed to have a citrus aroma at each time point 0 minutes, 5 minutes, and 10 minutes after the injection. Twenty minutes after the injection, the aroma disappeared, but the manure simulated odor was harmonized. The deodorant aerosol of Example 5 was confirmed to have an orange fragrance until 5 minutes after the injection. After 10 minutes from the injection, the aroma gradually decreased, but the manure simulated odor was harmonized.

On the other hand, in the deodorant aerosol of Comparative Example 1, a simulated manure odor was confirmed 0 minutes after the injection, and the simulated manure odor disappeared 5 minutes after the injection. However, 10 minutes after the injection, the simulated manure odor was generated again, and then, 60 minutes after the injection, the simulated manure odor gradually became stronger.

As described above, the deodorant aerosols of Examples 4 and 5 which are the products of the present invention showed an excellent deodorizing effect in terms of both immediate effect and sustainability as compared with the commercially available product of Comparative Example 1. ..

<Chemical deodorant efficacy test>
The deodorant aerosols of Examples 1 and 4 were subjected to a chemical deodorant efficacy test by an instrument measurement method. The test method was based on the deodorant efficacy test method of the Aroma Deodorant Deodorant Council, and after injecting and filling a 10 L plastic container with a malodorous component (ammonia), a deodorant aerosol was sprayed once. The ammonia concentration in the container was measured using a gas detector tube before injection of the deodorant aerosol, 1 hour after injection, and 10 hours after injection, and according to the following formula, 1 hour after injection and 10 hours after injection. Each attenuation factor was calculated.
Attenuation rate (%) = 100- {Ammonia concentration after injection (ppm) / Ammonia concentration before injection (ppm)} x 100
Table 2 shows the results (attenuation rate) of the chemical deodorant efficacy test in Examples 1 and 4.

As a result of the chemical deodorizing efficacy test, in both Examples 1 and 4, the attenuation rate 1 hour after injection was 60% or more, and the attenuation rate 10 hours after injection further increased to 87%. As described above, the deodorizing aerosols of Examples 1 and 4 showed a continuous deodorizing effect for 10 hours from the injection.

The deodorant aerosol of the present invention is used for deodorizing a bad odor in a treatment space, and can be suitably used as a deodorant for a toilet, but it can be used in a living room, a bedroom, an entrance, a kitchen, and a bathroom. It can also be used for deodorizing in living spaces such as.

1 Deodorant aerosol 1a Injection port

Claims (8)

An aerosol stock solution containing a deodorant component and an organic solvent, a pressure-resistant container provided with a fixed-quantity injection valve filled with a propellant, and a pressure-resistant container.
An injection button provided with an injection port connected to the fixed-quantity injection valve,
It is a deodorant aerosol equipped with
The organic solvent is at least one selected from the group consisting of higher fatty acid esters and alcohols.
The volume ratio (a / b) of the aerosol stock solution (a) and the propellant (b) sealed in the pressure-resistant container is 10/90 to 50/50.
The injection capacity when the injection button is pressed once is adjusted to 0.1 to 0.4 mL, and the injection force at an injection distance of 20 cm is adjusted to be 0.3 to 10.0 g · f at 25 ° C.
The injected particles formed when the injection button is pressed to inject the aerosol stock solution in the pressure-resistant container have a 90% particle diameter of 40 to 60 μm in a volume integration distribution at 25 ° C. and an injection distance of 15 cm.
When the injection button is pressed once to inject the aerosol stock solution in the pressure resistant container into a processing space of 2.5 to 3.5 m ³ , 50% by volume or more of the injected aerosol stock solution is within 60 minutes. A deodorizing aerosol for deodorizing the malodor of a toilet configured to form adhesive particles adhering to an exposed portion in the treatment space. The deodorant aerosol according to claim 1, wherein the deodorant component reacts with both an alkaline gas and an acid gas to neutralize the deodorant component. The deodorant component is a mixture of a plant deodorant component that can be neutralized by reacting with an alkaline gas and a plant deodorant component that can be neutralized by reacting with an acid gas, or an alkaline gas and an acid gas. The deodorant aerosol according to claim 1 or 2, which contains a vegetable deodorant component that can react with any of the above to neutralize. The deodorant aerosol according to any one of claims 1 to 3, wherein the deodorant component contains a plant extract and a harmonized fragrance. The deodorant aerosol according to any one of claims 1 to 4 , wherein the injection port has a injection port diameter of 0.2 to 1.0 mm. The deodorant aerosol according to any one of claims 1 to 5, wherein the aerosol stock solution further contains green leaf alcohol and / or green leaf aldehyde. The deodorant aerosol according to any one of claims 1 to 6, wherein the injected aerosol stock solution diffuses over the entire processing space within 120 seconds. The deodorant aerosol according to any one of claims 1 to 7 , wherein the concentration of the aerosol stock solution in the air is 0.0007 ppm or more in 95% or more of the treatment space within 120 seconds after injection.

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