KR102411559B1 - Deodorant aerosol - Google Patents

Abstract

The present invention provides a deodorizing aerosol capable of exhibiting a deodorizing effect excellent in immediate action and durability in a treatment space such as a toilet. An aerosol stock solution containing a deodorant component and an organic solvent, and a pressure-resistant container provided with a metering injection valve formed by sealing a propellant, and an injection button having an injection port connected to the metering injection valve, the aerosol for deodorization comprising one injection button The injection capacity when pressed is 0.1 to 0.4 mL, and the injection force at the injection distance of 20 cm is adjusted to 0.3 to 10.0 g·f at 25°C, and the aerosol stock solution in the pressure-resistant container is 2.5 to 1 time by pressing the injection button once. When sprayed into a treatment space of 3.5 m 3 , 50% by volume or more of the sprayed aerosol stock solution is configured to form adhesive particles adhering to exposed portions in the treatment space within 60 minutes.

Description

Aerosol for deodorization {DEODORANT AEROSOL}

The present invention relates to a deodorizing aerosol having excellent immediate action and durability of the deodorizing effect.

As a product for deodorizing a toilet space, a deodorant containing a deodorizing component is commercially available. As a deodorant for toilet space, various types are known, such as a stationary type in which a deodorizing effect is obtained continuously by volatilizing the deodorizing component by standing still in the room, and a spray type in which the deodorizing component is sprayed into the room by spraying. , deodorant aerosols are known as suitable for applications requiring immediate action, such as a use for deodorizing odors after toilet, or a use for deodorizing a bathroom with a strong odor in an outing place.

In Patent Document 1, a sufficient amount of drug particles of a fragrance is rapidly diffused into the processing space, and a deodorant effect is obtained by masking the odor remaining in the air with the fragrance of the fragrance, and the fragrance of the fragrance is quickly dissipated after deodorization. A deodorizing aerosol is disclosed.

International Publication No. 2017/073478

However, as in Patent Document 1, the method of rapidly dispersing the drug particles in the treatment space and then rapidly dissipating the fragrance of the fragrance cannot sufficiently exert a deodorizing effect on the continuously generated odor, and as a result deodorization. may be incomplete. However, since a toilet in a general house is a narrow space of about 2.5 to 3.5 ㎥, increasing the amount of drug particles discharged to the processing space makes the user in the processing space feel the direction of the drug particles strongly. , in particular, there is a risk of causing discomfort to consumers who do not like strong scents.

The present invention has been made to solve the above problems, and an object of the present invention is to provide an aerosol for deodorization that can exhibit a deodorizing effect excellent in immediate action and durability in a treatment space such as a toilet.

The characteristic configuration of the deodorizing aerosol according to the present invention for solving the above problems is,

A pressure-resistant container provided with a fixed-quantity injection valve formed by enclosing an aerosol stock solution containing a deodorizing component and an organic solvent, and a propellant;

Injection button with injection port connected to the metering injection valve

As an aerosol for deodorization,

When the injection button is pressed once, the injection capacity is 0.1 to 0.4 mL, and the injection force at a spray distance of 20 cm is adjusted to be 0.3 to 10.0 g·f at 25°C,

When the spray button is pressed once and the aerosol stock solution in the pressure-resistant container is sprayed into the treatment space of 2.5 to 3.5 ㎥, 50% by volume or more of the sprayed aerosol stock solution is attached to the exposed part in the treatment space within 60 minutes It exists in what is comprised so that it may form adhesive particle|grains.

Bad odors in toilets not only stay in the air of the treatment space, but are continuously generated from odor sources such as urine scattered and adhered to walls and floors. The present inventors considered that improving the deodorizing effect with respect to the malodor generated from the malodor source adhering to a wall surface etc. was connected with the improvement of the deodorizing effect with respect to the malodor in a toilet. Therefore, in the deodorizing aerosol according to the present invention, 50% by volume or more of the aerosol undiluted solution sprayed into the processing space forms adhesive particles. Adhesive particles are, among the spray particles formed when an aerosol stock solution is sprayed from a deodorizing aerosol into a treatment space of 2.5 to 3.5 m 3 , an exposed part in the treatment space within 60 minutes after spraying (for example, a floor existing in a toilet space) It is a particle that is attached to surfaces, walls, surfaces of structures such as toilets, etc.). Therefore, it is possible to effectively deodorize both the malodor generated from the malodor source adhering to the exposed portion and the malodor remaining in the air of the processing space, and the deodorizing effect of the entire processing space can be improved. In addition, even if the jet particles other than the adhesive particles (referred to as "suspended particles") diffuse to every corner of the processing space, the concentration of the aerosol stock solution in the processing space is reduced only by the adherent particles. Therefore, the amount of inhalation of the particles of the aerosol stock solution by the user in the processing space becomes very small, and it is possible to suppress feeling an excessive direction from the aerosol stock solution itself. In addition, the deodorizing aerosol according to the present invention is adjusted so that the injection capacity when the injection button is pressed once is 0.1 to 0.4 mL, and the injection force at an injection distance of 20 cm is 0.3 to 10.0 g·f at 25°C is becoming By adjusting the spraying capacity and the spraying force in this way, it is possible to form adherent particles of an appropriate size and achieve an excellent deodorizing effect in a treatment space such as a toilet.

In the deodorizing aerosol according to the present invention,

The sprayed particles formed when the aerosol undiluted solution in the pressure-resistant container is sprayed by pressing the spray button preferably has a particle diameter of 40 to 60 μm in 90% of the volume distribution at 25° C. and 15 cm in the spray distance.

By adjusting the particle diameter of the jetted particles to the above optimal range, a part of the jetting particles becomes adherent particles, and the remainder becomes floating particles. Therefore, according to the deodorizing aerosol of this configuration, it is possible to deodorize both the malodor floating in the air of the processing space and the malodor generated from the malodor source adhering to the exposed portion.

In the deodorizing 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 deodorizing aerosol of this configuration, when the dose ratio (a/b) of the aerosol stock solution (a) and the propellant (b) is within the above range, the adherent particles formed from the sprayed aerosol stock solution and the floating particles Balance is optimal. Thereby, the adherent particles can reliably reach the exposed portion in the processing space, and the floating particles can float in the processing space in an amount that does not cause discomfort due to an excessive direction. In this way, the adherent particles and the floating particles each exist in an optimal state, and by sharing their respective roles, the effect of the deodorizing component can be maximized.

In the deodorizing 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 aerosol for deodorization of this structure, the effect of each component can be exhibited efficiently by using a higher fatty acid ester or alcohol as an organic solvent. In addition, when the aerosol stock solution is sprayed, the adherent particles and the floating particles can be formed with a good balance, and the deodorizing effect is stable.

In the deodorizing aerosol according to the present invention,

The deodorizing component preferably includes a plant extract and a harmonized fragrance.

According to the deodorizing aerosol of the present configuration, the harmonized perfume is harmonized with bad smells such as the smell of excrement in the toilet, and the effect of sensory deodorization of recognizing the bad smell as a good scent can be obtained.

In the deodorizing aerosol according to the present invention,

It is preferable that the said injection port has a sphere diameter of 0.2-1.0 mm.

According to the deodorizing aerosol of this configuration, when the spherical diameter is within the above range, the balance between the adherent particles and the floating particles formed from the sprayed aerosol stock solution is more optimized.

In the deodorizing aerosol according to the present invention,

The aerosol stock solution preferably further contains green leaf alcohol and/or green leaf aldehyde.

According to the deodorizing aerosol of this configuration, by containing green leaf alcohol or green leaf aldehyde, which are expected to have a relaxing effect such as reduction of fatigue and stress, in the aerosol stock solution, the processing space in which the aerosol stock solution is sprayed from the deodorizing aerosol can be made a more comfortable space. can

In the deodorizing aerosol according to the present invention,

It is preferable that the sprayed aerosol stock solution is diffused throughout the processing space until after 120 seconds.

According to the deodorizing aerosol of this configuration, the sprayed aerosol undiluted solution is diffused to every corner of the treatment space within 120 seconds, so that the odor that stays near the ceiling and the odor that stays near the floor within the normal toilet usage time of a person In any of them, a deodorizing effect excellent in immediate effect can be exhibited.

In the deodorizing aerosol according to the present invention, it is preferable that the concentration in air of the aerosol stock solution is 0.0007 ppm or more in 95% or more of the processing space until 120 seconds after injection.

According to the deodorizing aerosol of this configuration, the concentration in the air of the aerosol undiluted solution becomes 0.0007 ppm or more in 95% or more of the processing space after 120 seconds from the injection, so it adheres without bias from the vicinity of the ceiling of the processing space to the vicinity of the floor surface. It can form sex particles.

In the deodorizing aerosol according to the present invention,

Preferably, the processing space is a toilet.

According to the deodorizing aerosol of this configuration, the adhesive particles adhere to the exposed parts of the wall, floor, toilet, etc. of the toilet, so that a continuous deodorizing effect can be obtained with respect to the odor generated from the odor source attached to the exposed part. have.

BRIEF DESCRIPTION OF THE DRAWINGS It is explanatory drawing of the diffusion simulation when the aerosol for deodorization which concerns on this invention is sprayed into 3 m<3> processing space.

The aerosol for deodorization of the present invention comprises a pressure-resistant container equipped with a fixed-quantity injection valve formed by sealing an aerosol stock solution containing a deodorant component and an organic solvent, and a propellant; When the spray button is pressed and the aerosol stock solution in the pressure-resistant container is sprayed, 50% by volume or more of the sprayed aerosol stock solution can be formed as adhesive particles. Adhesive particles are spray particles that adhere to exposed parts in the treatment space within 60 minutes after spraying among the spray particles formed when an aerosol undiluted solution is sprayed into a treatment space of 2.5 to 3.5 m 3 from a deodorizing aerosol. Hereinafter, the deodorizing aerosol of the present invention will be described. However, it is not intended that this invention is limited to embodiment described below and the structure described in drawing.

<Aerosol stock solution>

[deodorant ingredient]

The deodorant component, which is one main component of the aerosol stock solution, preferably includes a vegetable deodorant component and a harmonized fragrance. The vegetable deodorant component reacts with the odorous substance taking on the malodor to deodorize the malodor, so-called chemical deodorant effect. As such a botanical deodorizing component, an extract of Forsythia viridissima, ginkgo biloba, fig tree and the like is preferably selected. Any of these vegetable deodorizing components can be used individually or in a mixed state. In particular, it is preferable to use what is neutralized by reacting with any of an acid gas and an alkaline gas as a vegetable deodorizing component. Or you may mix and use the vegetable deodorizing component which neutralizes acidic gas, and the vegetable deodorizing component which neutralizes alkaline gas.

A harmonized fragrance|flavor is a fragrance|flavor prepared with the intention of converting into a good odor (fragrance) by taking in odors, such as an excrement smell, as one of the fragrance components. Therefore, the harmonized perfume brings about a sensory deodorizing effect, which is perceived as a good fragrance for people by smelling it in an environment in which a bad odor exists as one of the components of the fragrance. Hereinafter, it is expressed that the unpleasant odor is reduced by the sensory deodorizing effect as the malodor harmonizes.

[Organic solvent]

Another main component of the aerosol stock solution is an organic solvent that can dissolve the deodorant component to prepare an aerosol stock solution, and can form optimal particles when the prepared aerosol stock solution is sprayed into the processing space. do. As the organic solvent, higher fatty acid esters and alcohols are preferable. As a higher fatty acid ester, it is preferable that total number of carbon atoms is 16-20, For example, isopropyl myristate, butyl myristate, hexyl laurate, isopropyl palmitate, etc. are mentioned. Among these, isopropyl myristate is particularly suitable. As alcohol, a C2-C3 lower alcohol is preferable, for example, ethanol, isopropanol, and a propanol are mentioned. Among these, ethanol is particularly suitable. The organic solvent may be mixed with, for example, hydrocarbon solvents such as n-paraffin and isoparaffin, glycol ethers having 3 to 6 carbon atoms, and ketone solvents.

[Other ingredients]

In addition to the above components, the deodorant aerosol of the present invention is appropriately formulated with an aerosol undiluted solution including an air freshener, an antifungal agent, an antibacterial agent, a disinfectant, a stabilizer, an antistatic agent, an antifoaming agent, an excipient, etc. You may. For example, when the aerosol undiluted solution contains the fragrance, it is possible to mask the odor floating in the treatment space by the fragrance of the fragrance. As fragrances, orange oil, lemon oil, lavender oil, peppermint oil, eucalyptus oil, citronella oil, lime oil, citron oil, jasmine oil, hinoki oil, green tea essential oil, limonene, α-pinene, linalool, geraniol , aromatic ingredients such as phenylethyl alcohol, amylcinnamic aldehyde, cuminaldehyde, and benzyl acetate, green leaf alcohol (cis-3-hexenol) called “green leaf volatiles” or fragrance ingredients containing green leaf aldehyde can be heard The taste of consumers can be satisfied by making the aerosol undiluted solution into fragrances such as citrus, rose and lavender by mixing the fragrance. Moreover, when an aerosol for deodorization is sprayed into a toilet by mixing|blending of green leaf alcohol which is expected to have relaxing effects, such as reduction of fatigue and stress, a toilet can be made into a more comfortable space. As the mildew inhibitor, antibacterial agent and disinfectant, hinokitiol, 2-mercaptobenzothiazole, 2-(4-thiazolyl)benzimidazole, 5-chloro-2-methyl-4-isothiazolin-3-one, tri porine, 3-methyl-4-isopropylphenol, ortho-phenylphenol, and the like.

<propellant>

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

The aerosol for deodorization of the present invention is adjusted so that the dose ratio (a/b) of the aerosol stock solution (a) and the propellant (b) is 10/90 to 50/50. When adjusted to such a range, at least a part of the sprayed aerosol stock solution can be formed as adhesive particles. Thereby, the adherent particles can reliably reach the exposed portion in the processing space, and the floating particles can float in the processing space in an amount that does not cause discomfort due to an excessive direction. In addition, when both the adherent particle and the floating particle are formed, the balance of both becomes optimal. In this way, the adherent particles and the floating particles each exist in an optimal state, and by sharing their respective roles, the deodorizing effect can be maximized. If the dose ratio (a/b) is made smaller than 10/90, that is, if the ratio of the propellant (b) to be sealed in the pressure-resistant container is increased, the aerosol stock solution to be sprayed becomes finer than necessary, so the number of adherent particles is reduced. Thereby, since the adhesive particles adhering to the exposed part in the processing space are insufficient, it is not possible to sufficiently deodorize the odor continuously generated from the odor source adhering to the exposed part, and the persistence of the deodorizing effect may be insufficient. On the other hand, when the dose ratio (a/b) is made larger than 50/50, that is, when the ratio of the propellant (b) to be enclosed in the pressure-resistant container is decreased, the sprayed aerosol stock solution can be mixed with adhesive particles having a particle diameter in the optimum range. And since it becomes difficult to form as suspended particles, the aerosol stock solution settles immediately upon spraying. Therefore, the amount of floating particles floating in the processing space is insufficient in quantity, and it becomes difficult to quickly deodorize the odor.

<Aerosol for deodorization>

As described above, an aerosol product is completed by selecting a deodorizing component, an organic solvent, a propellant, and other components to be blended as needed, and sealing them in a pressure-resistant container. This aerosol product is an aerosol for deodorization of the present invention, and sprays an aerosol stock solution into a treatment space. An aerosol stock solution is mainly composed of a deodorizing component and an organic solvent, and is strictly different from a propellant, but since the aerosol stock solution is discharged to the outside of the pressure-resistant container simultaneously with the propellant, in the following description, the aerosol stock solution and the propellant In some cases, aerosol contents containing

Here, the injection valve contained in the aerosol for deodorization which concerns on this invention is demonstrated. The deodorizing 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. The dose injection valve is connected to an injection button, which is an operation part for injecting the aerosol stock solution, and the injection button has an injection port through which the aerosol stock solution is ejected from the aerosol container to the outside (processing space).

When the injection button of the deodorizing aerosol is pressed once, the fixed-quantity injection valve is actuated 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 0.1-0.4 mL, More preferably, it is adjusted to 0.2-0.4 mL. In such a range, at least a part of the aerosol stock solution is formed as adherent particles. Moreover, when both an adherent particle and a floating particle are formed, each is formed with good balance so that a deodorizing effect can be optimally exhibited in a processing space. When the injection volume is less than 0.1 mL, since the injection volume is too small, the adherent particles do not sufficiently adhere to the exposed portion in the treatment space, and it is difficult to deodorize the odor continuously generated from the odor source adhering to the exposed portion. do. In addition, since the number of suspended particles is also reduced, the deodorization of odors floating in the air in the processing space is insufficient. On the other hand, when the injection volume exceeds 0.4 mL, the aerosol stock solution is released into the treatment space more than necessary, so there is a risk of giving discomfort to consumers who do not like strong scents. disadvantageous

The aerosol for deodorization is adjusted so that the injection force in the location whose distance from the injection port is 20 cm may be 0.3-10.0 g*f at 25 degreeC. In such a range, the adhesive particles formed from the aerosol undiluted solution can be smoothly brought to the exposed part in the processing space by one injection, and the effect of the deodorizing component can be exhibited quickly. In addition, it is preferable to set the spherical diameter of an injection port to 0.2-1.0 mm. Within this range, the particle diameter and spraying force can be appropriately adjusted, and at least a part of the aerosol stock solution sprayed into the treatment space is optimally formed as adherent particles and continuously generated from the odor source adhering to the exposed part It can deodorize odors.

It is preferable that the particle diameter of the spray particle injected from the aerosol for deodorization is adjusted to 40-60 micrometers in 90% of particle diameters in the integrated volume distribution in 25 degreeC and 15 cm injection distance. In such a range, when the aerosol stock solution is sprayed into a 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, and a sufficient amount of the adhesive particles can be quickly discharged into the treatment space It can be attached by moving to the exposed part of the inner body. Therefore, it is possible to deodorize the malodor continuously generated from the malodor source adhering to the exposed portion by the deodorizing component of the adherent particles. If the particle diameter of the sprayed particles is less than 40 µm in the 90% particle diameter in the integrated volume distribution at 25°C and the spraying distance of 15 cm, since the particle diameter is too small, it becomes difficult for many particles to reach the exposed portion, A sufficient amount of adherent particles is not formed. As a result, it becomes difficult to effectively deodorize the odor continuously generated from the odor source adhering to the exposed portion. On the other hand, when the particle diameter exceeds 60 µm, since the particle diameter is too large, it becomes difficult to control the behavior of the adhesive particles, and it becomes difficult to properly adhere to the exposed portion.

Moreover, as for the particle diameter of a spray particle, it is more preferable that the 10% particle diameter in the integrated volume distribution in 25 degreeC and 15 cm injection distance is adjusted to 5 micrometers or less, and the 50% particle diameter is adjusted to 20-40 micrometers. The injection particle which has such an integrated volume distribution has a wide distribution width of a particle diameter. As a result, when the undiluted aerosol solution is sprayed from the deodorizing aerosol into the processing space once, adherent particles having a relatively large particle diameter and floating particles having a relatively small particle diameter are formed.

Since the floating particles are formed with a particle diameter smaller than that of the adherent particles, when the aerosol stock solution is sprayed into the processing space, they can rapidly diffuse and float in the processing space. Therefore, the odor remaining in the air in the processing space can be deodorized by the deodorizing component of the floating particles. In this way, by adjusting the particle diameter to the optimal range as described above so that some of the sprayed aerosol stock solution forms suspended particles, the floating particles exhibit different behavior from the adherent particles, and together with the adherent particles It can effectively deodorize odors.

<Diffusion Simulation>

1 is an explanatory diagram of a diffusion simulation when the aerosol for deodorization according to the present invention is sprayed into a treatment space of 3 m 3 . The analysis method of the chemical|medical agent concentration used for the diffusion simulation of FIG. 1 is demonstrated below.

In analyzing the drug concentration, the state in which the drug (aerosol stock solution) diffuses with the progress of time was output as an analysis result. First, the airflow calculation means analyzes the spatial distribution of wind speed and temperature until it becomes a steady state, then generates a chemical from the aerosol product, and uses the analyzed wind speed distribution, etc., to the concentration calculation means Thus, the spatial distribution of drug concentration was predicted by normal analysis. In addition, the change with time of the concentration distribution was predicted by the abnormality analysis.

In the simulation space, the airflow calculation means discretizes the three-dimensional advection diffusion equation by the finite difference method and numerically solves it, so that the airflow velocity and airflow direction (wind speed, wind direction) and air temperature ( Hereinafter, it may be referred to as an "airflow state"). The air flow calculation means includes a k-ε turbulence model (transport equation (1) of momentum, turbulence, The advection is composed of the energy transport equation (2), and the turbulent flow dissipation rate transport equation (3)), the heat transport equation (4), and the continuation equations (5) to (8). With respect to the diffusion equation, iterative calculations are performed using numerical analysis by the finite difference method for each minute time between adjacent lattice points of each minute division region, and the wind speed, wind direction, temperature and wind pressure between the respective grid points are at a predetermined equilibrium. In the case of a state, it is comprised so that the value can be determined as predicted wind speed data, predicted wind direction data, and predicted temperature data of each said grid|lattice point.

[Equation of Transport of Momentum]

[Equation of transport of turbulent energy]

[Transport equation of turbulent dissipation rate]

[Equation of transport of heat]

[Consecutive Expression]

C ₁ , C ₂ , C ₃ , C _t : constant

U _i : each component of the instantaneous wind speed vector of the airflow

P: wind pressure

ρ: density of air

ν : coefficient of kinematic viscosity

ν _t : eddy viscosity coefficient

k: turbulent energy

ε: rate of turbulence dissipation

The concentration calculation means relates to a target drug in the simulation space, and is a means for calculating the concentration distribution by discretizing and numerically solving the three-dimensional concentration diffusion governing equation by the finite difference method. That is, the concentration calculation means gives the calculated airflow state (predicted wind speed data, predicted wind direction data, and predicted temperature data) at each lattice point in the calculated finely divided region and the amount of diffusion material generated, For the concentration diffusion governing equation composed of the transport equation (9) of the substance), iterative calculation is performed using numerical analysis by the finite difference method for each minute time between adjacent lattice points of each microdivision region, and each lattice When the chemical|medical agent concentration between points becomes an equilibrium state, it is comprised so that it can determine with the value as a stationary solution of the predicted chemical|medical agent concentration data of each said grid|lattice point. In addition, in the process of performing repeated calculations, it is also possible to determine the abnormal solution of the predicted drug concentration data by recording the integrated value of the minute time and the drug concentration of each minute division at that time for each predetermined period of time. In addition, by making the amount of diffusion material generated as a dimensionless amount, it is also possible to predict the predicted drug concentration data not as an absolute value but as a relative value corresponding to the amount of diffusion material generated.

[Equation of Transport of Diffuse Matter]

U _j : each component of the instantaneous wind speed vector of the airflow

C: concentration per unit volume of diffusion material

d: the term of occurrence of the diffusion material

D _m : diffusion coefficient

The analysis target is, as shown in Fig. 1 (a), for deodorization in which the user 2 and the injection port 1a are inclined upward in a processing space of about 3 m (width 78 cm x depth 169 cm x ceiling height 230 cm). The analysis shape in which the aerosol 1 was arrange|positioned was set. The analysis shape and processing space were divided into analysis grids.

Analysis conditions were set at a wind speed of 0 m/sec, and the influence of heat generation and temperature inside and outside the room was ignored. From the injection port 1a of the deodorizing aerosol (1), the injection capacity per one time is 0.2 mL, the injection force at a distance of 20 cm from the injection port is set to 2.9 g f at 25 ° C. The spatial distribution of the air concentration of the aerosol stock solution was analyzed.

Fig. 1 (b) shows the aerosol stock solution after 10 seconds, 30 seconds, 60 seconds, 120 seconds, and 170 seconds after spraying the aerosol stock solution from the deodorizing aerosol 1 to the treatment space once. It is a result image of diffusion simulation showing the concentration (ppm). In Fig. 1(b), in each image, reference numeral A is attached to an area in which the air concentration of the aerosol stock solution is 0.0007 ppm. According to the above analysis, as shown in Fig. 1(b), after injection, the aerosol stock solution spreads rapidly, and after 60 seconds from injection, it reaches from the ceiling surface to the floor surface of the processing space, and 120 seconds from injection Afterwards, the result was obtained that diffusion proceeds throughout the processing space. Here, "diffusion throughout the processing space" means, as shown in the image after 120 seconds of FIG. Incidentally, since the normal toilet use time of a person is about 5 to 15 minutes, if the diffusion time of the aerosol undiluted solution to the entire toilet space is 120 seconds, deodorization can be sufficiently performed within the toilet use time. In addition, after 170 seconds from the injection, it diffuses until the concentration of the aerosol undiluted solution in the entire processing space becomes uniform. Therefore, when a sufficient time elapses after spraying, the adhesion particles to all surfaces of the wall surface, the floor surface, and the ceiling surface in the treatment space are completed, and the adhered state is maintained. And, as described above, the deodorant component deodorizes the odor continuously generated from the odor source adhering to the exposed portion.

On the other hand, in the floating particles, the deodorant component is gradually volatilized and deodorizes the odor remaining in the air of the processing space. In particular, odors in toilets include the smell of urine due to ammonia, etc. and the smell of feces due to hydrogen sulfide and methyl mercaptan. Ammonia is lighter than air and tends to stay near the ceiling, and hydrogen sulfide and methyl mercaptan are heavier than air. It tends to stay near the bottom surface. However, as shown in FIG. 1(b), the aerosol stock solution injected from the deodorizing aerosol 1 diffuses to every corner of the treatment space until 120 seconds after the injection, so odors staying near the ceiling and the floor surface All odors remaining in the vicinity can be deodorized by floating particles. In addition, ammonia is an alkaline gas, and hydrogen sulfide and methyl mercaptan are acidic gases. Since the aerosol stock solution contains a deodorizing component capable of neutralizing by reacting with either an alkaline gas or an acid gas, any kind of odorous substance can be deodorized by chemical deodorization. As the deodorant component, a mixture of a vegetable deodorant component that can be neutralized by reacting with an alkaline gas and a vegetable deodorant component that can be neutralized by reacting with an acid gas, or an alkaline gas and an acid gas that can react and neutralize It is preferable to use a vegetable deodorant component.

As described above, in the deodorizing aerosol according to the present invention, since the particles formed from the sprayed aerosol stock solution are two types of particles with different behaviors, each particle exists in an optimal state, and the deodorizing effect is achieved by sharing their respective roles. can perform to the fullest. Therefore, an excellent deodorizing effect can be exhibited by the adherent particles and the floating particles in both the malodor remaining in the air in the processing space and the malodor generated from the malodor source adhering to the exposed portion in the processing space.

And, when the injection capacity and the injection force are set smaller than the diffusion simulation shown in Fig. 1 as analysis conditions, for example, the injection capacity per one time is 0.1 mL, and the injection force at a distance of 20 cm from the injection port is 0.4 g at 25 ° C. In the model set to f, similar to the diffusion simulation shown in FIG. 1 , a diffusion simulation result was obtained that the aerosol stock solution rapidly spreads throughout the treatment space. When setting the injection capacity and the injection force larger than the diffusion simulation shown in Fig. 1, for example, a model in which the injection capacity per one time is 0.4 mL and the injection force at a distance of 20 cm from the injection port is set to 7.0 g·f at 25 ° C. In , similar to the diffusion simulation shown in FIG. 1 , a diffusion simulation result was obtained in which the aerosol stock solution rapidly spreads throughout the treatment space.

As described above, by spraying the aerosol stock solution from the deodorizing aerosol according to the present invention to a treatment space of 2.5 to 3.5 m 3 once, a deodorizing effect excellent in immediate action and durability is obtained. A space of 2.5 to 3.5 m3 is roughly equivalent to the size of a toilet space in a general house (width 80-85 cm x depth 140-180 cm x ceiling height 230 cm). Therefore, if it is the deodorizing aerosol according to the present invention, it is possible to quickly deodorize bad odors in public toilets and the like, and to maintain the deodorizing effect for a long time. In addition, some of the particles formed by the aerosol stock solution injected into the processing space from the deodorizing aerosol according to the present invention are formed as floating particles. Therefore, the concentration of the aerosol undiluted solution (suspended particles) diffusing in the processing space is reduced by the amount of the adherent particles, and the concentration of the processing space becomes low. Therefore, the direction from the floating particles is reduced, and it is possible to suppress the feeling of discomfort to consumers who do not like the strong direction.

<Example>

<Measurement of blowing force and particle diameter>

A deodorizing aerosol (Examples 1 to 3) having the characteristic constitution of the present invention was prepared, and the spraying force was measured. In addition, with respect to the aerosol for deodorization of Example 1, the particle diameter of the sprayed particle was measured. The aerosol stock solution of the deodorant aerosol is 1.35 g (10 w/V%) of a plant extract as a deodorant component and 0.4 g (3 w/V%) of a harmonized fragrance, and ethanol (anhydrous) as an organic solvent (balance) is mixed, , the total amount was prepared to 13.5 mL.

Aerosol stock solution (a) and spraying by filling 13.5 mL of aerosol stock solution with 31.5 mL of propellant (LPG gas as main ingredient) into an aerosol can equipped with a metering injection valve (0.2 mL/push) at an internal pressure of 0.46 MPa A total amount of 45 mL of an aerosol for deodorization having a dose ratio (a/b) of the agent (b) of 30/70 was prepared, and this was referred to as Example 1.

Aerosol stock solution (a) and propellant (b) by filling 13.5 mL of aerosol stock solution with 31.5 mL of propellant (LPG gas as the subject) into an aerosol can equipped with a metering injection valve (0.1 mL/push) at an internal pressure of 0.35 MPa A total amount of 45 mL of a deodorizing aerosol having a capacity ratio (a/b) of 30/70 was prepared, and this was referred to as Example 2.

Aerosol stock solution (a) and propellant (b) by filling 13.5 mL of aerosol stock solution with 31.5 mL of propellant (LPG gas as the subject) into an aerosol can equipped with a metering injection valve (0.4 mL/push) at an internal pressure of 0.50 MPa A total amount of 45 mL of a deodorizing aerosol having a capacity ratio (a/b) of 30/70 was prepared, and this was referred to as Example 3.

The injection force was measured by pressing the injection button of the deodorizing aerosol of Example 1 once, and spraying it on the measuring surface of the Densilon (measurement 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., the injection force at a distance of 10 cm from the injection port was 3.2 g·f at 25 ° C., and the injection force at a distance of 20 cm from the injection port. Silver was 2.9 g·f at 25°C.

The injection force of the deodorizing aerosols of Examples 2 and 3 was measured by pressing each injection button once, and spraying it on the measurement surface of the Densilon (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 aerosol for deodorization of Example 2 was 0.4 g*f at 25 degreeC. The injection force at a distance of 20 cm from the injection port of the aerosol for deodorization of Example 3 was 7.0 g*f at 25 degreeC.

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

<Deodorization Efficacy Test>

With respect to the deodorizing aerosol of the present invention, in order to confirm the deodorizing effect, a deodorizing aerosol (Example 4 and Example 5) prepared in the same manner as in Example 1 was prepared, and a deodorizing effect test was performed by an olfactory measurement method. . In addition, for comparison, an aerosol for deodorization (comparative example 1) having a component different from that of the present invention was prepared, and the same deodorizing effect test was performed.

A deodorizing aerosol was prepared using the same raw materials and manufacturing method as the deodorizing aerosol of Example 1, except that a small amount of citrus fragrance was blended as a fragrance in the aerosol stock solution, and this was referred to as Example 4. A deodorizing aerosol was prepared using the same raw materials and manufacturing method as the deodorizing aerosol of Example 1, except that a small amount of orange flavor was blended as a fragrance in the aerosol stock solution, and this was referred to as Example 5.

In Comparative Example 1, a conventionally marketed aerosol for deodorizing in which a fatty acid salt as a deodorizing component, a quaternary ammonium salt as a sterilizing component, and ethanol as an organic solvent is blended was used.

In the deodorizing effect test, in a treatment space of 3 m 3 , a predetermined amount of an odorous substance exhibiting a simulated smell of excrement was sprayed. After that, the deodorizing aerosol is sprayed once in the treatment space, immediately after spraying (0 minutes), 5 minutes, 10 minutes, 20 minutes, 30 minutes, and 60 minutes after the odor in the treatment space is removed by the panel The list was evaluated according to the 9-level pleasure/discomfort indication method. However, since the deodorizing aerosol of Comparative Example 1 is an aerosol product not provided with a metering injection valve, it was switched to one-time metered injection, and continuous injection was performed for 1 second according to the usage of Comparative Example 1. The injection amount was calculated|required from the weight difference by measuring the aerosol for deodorization before and after injection.

The evaluation criteria for the 9-step pleasure/discomfort indication method are in accordance with the efficacy test method of the Aroma Deodorant Deodorant Council, "+4: Extremely Pleasant", "+3: Extremely Pleasant", "+2: Pleasant", "+ 1: somewhat pleasant", "0: neither pleasant nor unpleasant", "-1: somewhat unpleasant", "-2: unpleasant", "-3: extremely unpleasant", and "-4: extremely unpleasant". After spraying the odor substance, the evaluation in the case of not processing the aerosol for deodorization was -3. Table 1 shows the results (pleasantness and unpleasantness) of the deodorizing effect tests in Examples 4, 5 and Comparative Example 1.

[Table 1]

As a result of the deodorization effect test, neither Example 4 nor Example 5 was inferior to the evaluation of "+1: somewhat pleasant" in the whole test period. Specifically, in the aerosol for deodorization of Example 4, the direction of citrus was confirmed at each time point 0, 5, and 10 minutes after the injection. After 20 minutes from spraying, although the direction was lost, the smell of manure simulation was harmonized. As for the aerosol for deodorization of Example 5, the direction of orange was confirmed from spraying until 5 minutes later. After 10 minutes from the injection, the direction gradually decreased, but the smell of the simulated manure was harmonized.

On the other hand, in the deodorizing aerosol of Comparative Example 1, the simulated odor of excrement was confirmed 0 minutes after the injection, and the simulated odor of excrement disappeared 5 minutes after the injection. However, after 10 minutes of spraying, the smell of simulated manure was generated again, and thereafter, the smell of simulated manure gradually became stronger until 60 minutes after spraying.

As described above, the deodorizing aerosols of Examples 4 and 5, which are products of the present invention, exhibited excellent deodorizing effects in any aspect of immediate action and durability, compared to Comparative Example 1, which is a commercial product.

<Test of chemical deodorization effect>

For the deodorizing aerosols of Examples 1 and 4, a chemical deodorization effect test by an instrumentation method was performed. The test method was based on the Deodorant Efficacy Test Method of the Aroma Deodorant Deodorant Association, and after injecting and filling a 10L plastic container with a malodor component (ammonia), a deodorizing aerosol was sprayed once. The ammonia concentration in the container was measured using a gas detection tube before, 1 hour after, and 10 hours after spraying the deodorizing aerosol, and the decay rates were calculated 1 hour after spraying and 10 hours after spraying by the following formula.

Attenuation rate (%) = 100 - {Ammonia concentration after spraying (ppm)/Ammonia concentration before spraying (ppm)}×100

Table 2 shows the results (attenuation rate) of the chemical deodorant effect tests in Examples 1 and 4.

[Table 2]

As a result of the chemical deodorization effect test, in either Example 1 or Example 4, the attenuation rate after 1 hour of injection was 60% or more, and the attenuation rate after 10 hours of injection increased further and was 87%. In this way, the deodorizing aerosols of Examples 1 and 4 exhibited a continuous deodorizing effect over 10 hours from spraying.

<Industrial Applicability>

The deodorizing aerosol of the present invention is used to deodorize odors in processing spaces, and can be preferably used as a deodorant for toilets, but can also be used for deodorizing applications in living spaces such as living rooms, bedrooms, hallways, kitchens, and bathrooms. do.

1: Deodorizing aerosol
1a: nozzle

Claims (13)

A pressure-resistant container equipped with a metering injection valve formed by enclosing an aerosol stock solution containing a deodorizing component and an organic solvent, and a propellant, and
Injection button with injection port connected to the metering injection valve
As an aerosol for deodorizing comprising,
The organic solvent is at least one selected from the group consisting of a higher fatty acid ester having a total number of 16 to 20 carbon atoms and a lower alcohol having 2 to 3 carbon atoms,
The volume ratio (a/b) of the aerosol stock solution (a) and the propellant (b) enclosed in the pressure-resistant container is 10/90-50/50,
When the injection button is pressed once, the injection capacity is 0.1 to 0.4 mL, and the injection distance at 20 cm is adjusted to be 0.3 to 10.0 g·f at 25°C,
The spray particles formed when the aerosol stock solution in the pressure-resistant container is sprayed by pressing the spray button has a 50% particle diameter of 20-40 μm in the volume integration distribution at 25° C. and a spray distance of 15 cm, and 90% particles 40-60 μm in diameter,
A deodorizing aerosol that deodorizes bathroom odors. The method of claim 1,
The deodorant component is neutralized by reacting with any one of an alkaline gas and an acid gas, a deodorizing aerosol for deodorizing a toilet odor. 3. The method of claim 1 or 2,
The deodorant component is a vegetable deodorizing component that can be neutralized by reacting with an alkaline gas and a vegetable deodorant that can be neutralized by reacting with either a mixture of a vegetable deodorant component or an alkaline gas and an acid gas that can be neutralized by reacting with an acid gas A deodorizing aerosol containing an ingredient that deodorizes toilet odors. 3. The method of claim 1 or 2,
The deodorizing component includes a plant extract, a deodorizing aerosol for deodorizing a toilet odor. 3. The method of claim 1 or 2,
The said injection port has a spherical diameter of 0.2-1.0 mm, The deodorizing aerosol which deodorizes a toilet odor. 3. The method of claim 1 or 2,
The aerosol undiluted solution further comprises green leaf alcohol and/or green leaf aldehyde, a deodorizing aerosol for deodorizing toilet odors. 3. The method of claim 1 or 2,
The sprayed aerosol stock solution diffuses throughout the treatment space until after 120 seconds, a deodorizing aerosol for deodorizing toilet odors. 3. The method of claim 1 or 2,
The airborne concentration of the aerosol stock solution is 0.0007 ppm or more in 95% or more of the processing space until 120 seconds after the injection. 3. The method of claim 1 or 2,
In addition to the deodorant component and the organic solvent, the aerosol stock solution contains at least one selected from the group consisting of a fragrance, a mildew agent, an antibacterial agent, a bactericide, a stabilizer, an antistatic agent, an antifoaming agent, and an excipient. The deodorant aerosol which deodorizes a toilet odor to do. 3. The method of claim 1 or 2,
The organic solvent is at least one selected from the group consisting of ethanol, isopropanol, and propanol.
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