CN111317850A

CN111317850A - Deodorant aerosol

Info

Publication number: CN111317850A
Application number: CN202010179237.6A
Authority: CN
Inventors: 小林洋子; 六川彩子; 中山幸治
Original assignee: Dainihon Jochugiku Co Ltd
Current assignee: Dainihon Jochugiku Co Ltd
Priority date: 2017-06-22
Filing date: 2018-06-20
Publication date: 2020-06-23
Also published as: JPWO2018235844A1; TWI699238B; JP2021053429A; CN118022033A; SG11201912845RA; JP7043151B2; JP6813605B2; KR20210130273A; JP2019103820A; KR102411559B1; KR102318445B1; KR20190138693A; WO2018235844A1; CN110709109A; TW201904659A; JP6472937B1

Abstract

The invention provides a deodorizing aerosol which can exert deodorizing effect with excellent immediate effect and persistence in a processing space such as a toilet. The deodorizing aerosol of the invention comprises a pressure-resistant container which is sealed with aerosol collagen liquid containing deodorizing components and organic solvents and a propellant and is provided with a quantitative injection valve, and an injection button which is provided with an injection port connected with the quantitative injection valve; the deodorizing aerosol is adjusted so that the spray volume when the spray button is pressed 1 time is 0.1-0.4 mL and the spray force at a spray distance of 20cm is 0.3-10.0 g.f at 25 ℃, and the spray button is pressed 1 time to adjust the deodorizing aerosolSpraying aerosol collagen liquid in the pressure-resistant container to 2.5-3.5 m³The treatment space (2) is configured such that 50% by volume or more of the sprayed aerosol collagen liquid forms adhesive particles adhering to the exposed portion in the treatment space within 60 minutes.

Description

Deodorant aerosol

The present application is a divisional application of an application entitled "deodorant aerosol" having a national application number of 201880034503.7 (international application number of PCT/JP2018/023377) at the stage of entering the chinese country at 11/25/2019.

Technical Field

The present invention relates to a deodorizing aerosol having excellent immediate and sustained deodorizing effect.

Background

As a product for deodorizing offensive odors in toilet spaces, a deodorant containing a deodorizing component is commercially available. As a deodorant for a toilet space, various types such as a standing type in which a deodorant component is volatilized by standing in a room to obtain a continuous deodorant effect, a spray type in which a deodorant component is sprayed by spraying in a room, and the like are known, and among these, a deodorant aerosol is known as a deodorant suitable for an application requiring immediate effectiveness such as an application of deodorizing odor after defecation, an application of deodorizing strong odor in a toilet at a destination, and the like.

Patent document 1 discloses a deodorizing aerosol in which a sufficient amount of drug particles of an aromatic agent are rapidly diffused into a treatment space, malodors remaining in the air are masked (masked) by the fragrance of the aromatic agent, thereby obtaining a deodorizing effect, and the fragrance of the aromatic agent is rapidly lost after deodorization.

Documents of the prior art

Patent document

Patent document 1: international publication No. 2017/073478

Disclosure of Invention

Problems to be solved by the invention

However, as in patent document 1, the method of diffusing the drug particles quickly into the treatment space and then quickly eliminating the fragrance of the aromatic agent cannot sufficiently exert the deodorizing effect on the odor generated continuously, and as a result, the deodorizing effect is incomplete. However, the toilet for general houses and the like is 2.5 to 3.5m³A narrow space on the left and right sides, so that increasing the amount of drug particles discharged into the treatment space may cause a user in the treatment spaceThe aroma of the drug particles is strongly felt, and particularly, there is a fear that consumers who do not like the strong aroma feel unpleasant.

The present invention has been made in view of the above problems, and an object thereof is to provide a deodorizing aerosol which can exhibit a deodorizing effect excellent in immediate effect and persistence in a treatment space such as a toilet.

Means for solving the problems

A feature configuration of a deodorizing aerosol according to the present invention for solving the above problem is a deodorizing aerosol comprising:

a pressure-resistant container provided with a quantitative injection valve and enclosing an aerosol collagen liquid containing a deodorizing component and an organic solvent, and an injection agent, and

an injection button provided with an injection port connected to the fixed-quantity injection valve,

the deodorizing aerosol is adjusted so that the spray volume when the spray button is pressed 1 time is 0.1-0.4 mL and the spray force at a spray distance of 20cm is 0.3-10.0 g.f at 25 DEG, and

pressing the spray button 1 time to spray the aerosol collagen liquid in the pressure container to 2.5-3.5 m³In the treatment space of (3), 50% by volume or more of the sprayed aerosol collagen liquid forms adhesive particles adhering to an exposed portion in the treatment space within 60 minutes.

The odor in the toilet is continuously generated not only by staying in the air in the treatment space but also from a source of odor such as urine scattered and adhering to a wall surface, a floor surface, and the like. The present inventors considered that the improvement of the deodorizing effect on the malodor generated from the malodor source attached to the wall surface or the like is related to the improvement of the deodorizing effect on the malodor in the toilet. Therefore, in the deodorizing aerosol according to the present invention, 50% by volume or more of the aerosol liquid sprayed into the treatment space is formed as the adhesive particles. The adhesive particles are prepared by spraying an aerosol solution onto 2.5 to 3.5m of deodorizing aerosol³Of the spray particles formed in the treatment space, dew adhered to the treatment space within 60 minutes after sprayingParticles at the discharge part (for example, on the floor or wall surface in the toilet space, the surface of a structure such as a toilet stool, etc.). Therefore, both of the malodors generated from the malodour source attached to the exposed portion and the malodors remaining in the air in the treatment space can be effectively deodorized, and the deodorizing effect of the entire treatment space can be improved. Even if the sprayed particles other than the adhesive particles (which are referred to as "floating particles") are dispersed throughout the entire treatment space, the concentration of the aerosol liquid in the treatment space is reduced by the amount of the adhesive particles. Therefore, the amount of particles of the aerosol liquid inhaled by the user in the treatment space is extremely small, and the excessive fragrance perceived by the aerosol liquid itself can be suppressed. The deodorizing aerosol according to the present invention is adjusted so that the spray volume when the spray button is pressed 1 time is 0.1 to 0.4mL and the spray force at a spray distance of 20cm is 0.3 to 10.0 g.f at 25 ℃. By adjusting the ejection volume and the ejection force in this manner, adhesive particles having an appropriate size can be formed, and an excellent deodorizing effect in a treatment space such as a toilet can be exhibited.

In the deodorizing aerosol according to the present invention, it is preferable that:

the 90% particle diameter of the cumulative volume distribution of spray particles formed when the spray button is pressed to spray the aerosol collagen liquid in the pressure-resistant container at 25 ℃ and at a spray distance of 15cm is 40-60 [ mu ] m.

By adjusting the particle diameter of the ejected particles to the above-described optimum range, a part of the ejected particles become adhesive particles, and the rest become floating particles. Therefore, according to the deodorizing aerosol of the present configuration, both the malodor floating in the air in the processing space and the malodor generated by the malodor source attached to the exposed portion can be deodorized.

the volume ratio (a/b) of the aerosol collagen liquid (a) to the propellant (b) sealed in the pressure-resistant container is 10/90-50/50.

According to the deodorizing aerosol of the present configuration, when the volume ratio (a/b) of the aerosol raw liquid (a) to the propellant (b) is in the above range, the balance between the adhesive particles and the floating particles formed by the ejected aerosol raw liquid becomes optimal. Thus, the adhesive particles can reliably reach the exposed portion in the processing space, and the floating particles can be prevented from floating in the processing space in an amount to the extent of giving an unpleasant feeling due to excessive fragrance. In this way, the adhesive particles and the floating particles are present in the optimum state, and can play their roles to maximize the effect of the deodorizing component.

the organic solvent is at least 1 selected from higher fatty acid ester and alcohol.

According to the deodorizing aerosol of the present configuration, the effects of the respective components can be efficiently exerted by using higher fatty acid esters or alcohols as the organic solvent. In addition, when the aerosol liquid is sprayed, the balance between the adhesive particles and the floating particles can be well formed, and the deodorizing effect can be stabilized.

the deodorizing component comprises a plant extract and a harmonious (harmized) spice.

According to the deodorizing aerosol of the present configuration, the odor of feces and urine in a toilet is harmonized with the blending fragrance, and a sensory deodorizing effect is obtained in which the odor is recognized as a good fragrance.

the jet orifice has a jet orifice diameter of 0.2-1.0 mm.

According to the deodorizing aerosol of the present configuration, when the diameter of the nozzle opening is in the above range, the balance between the adhering particles and the floating particles formed by the aerosol raw liquid to be sprayed is optimized.

the aerosol collagen liquid also contains leaf alcohol and/or leaf aldehyde.

According to the deodorizing aerosol of the present configuration, by including the folyl alcohol or the folaldehyde, which is expected to reduce the relaxation effect such as fatigue and stress, in the aerosol raw liquid, the processing space for ejecting the aerosol liquid from the deodorizing aerosol can be made more comfortable.

the sprayed aerosol collagen liquid was diffused throughout the treatment space until 120 seconds later.

According to the deodorizing aerosol of the present configuration, since the sprayed aerosol raw liquid spreads over the entire processing space within 120 seconds, the deodorizing effect with excellent immediate effect can be exerted even on the malodor staying near the ceiling and the malodor staying near the floor in the normal toilet use time of a person.

In the deodorizing aerosol according to the present invention, it is preferable; the concentration of the aerosol collagen liquid in the air is 0.0007ppm or more in 95% or more of the treatment space 120 seconds after the start of spraying.

According to the deodorizing aerosol of the present configuration, the concentration of the aerosol liquid in the air becomes 0.0007ppm or more in 95% or more of the treatment space 120 seconds after the start of spraying, and therefore, the adhesive particles can be uniformly distributed from the vicinity of the ceiling to the vicinity of the floor of the treatment space.

the treatment space is a toilet.

According to the deodorizing aerosol of the present configuration, the adhesive particles adhere to the wall surface of the toilet, the floor surface, the exposed portion of the toilet stool, and the like, and a persistent deodorizing effect is obtained with respect to the malodor generated by the malodor source adhering to the exposed portion.

Drawings

FIG. 1 shows a state in which a deodorizing aerosol according to the present invention is sprayed onto a 3m substrate³The diffusion simulation in the processing space of (1).

Detailed Description

The deodorizing aerosol of the present invention comprises: a pressure-resistant container sealed with an aerosol collagen liquid containing a deodorizing component and an organic solvent, and a propellant and provided with a quantitative injection valve; and an ejection button provided with an ejection port connected to the quantitative ejection valve, wherein when the ejection button is pressed to eject the aerosol liquid in the pressure-resistant container, 50% by volume or more of the ejected aerosol liquid can be formed as adhesive particles. The adhesive particles are obtained by spraying an aerosol solution of deodorizing aerosol onto a surface of 2.5 to 3.5m³Among the ejected particles formed in the processing space of (1), the ejected particles adhering to the exposed portion in the processing space within 60 minutes after the ejection. The deodorizing aerosol of the present invention will be explained below. However, the present invention is not intended to be limited to the configurations described in the embodiments and the drawings described below.

< Aerosol collagen solution >

[ deodorizing component ]

The deodorizing component of one main component of the aerosol collagen liquid preferably contains a vegetable deodorizing component and a fragrance. The plant deodorant component reacts with an odorant which causes malodor to deodorize the malodor, and has a so-called chemical deodorant effect. As such plant deodorant ingredients, extracts of Forsythia viridissima (シナレンギョウ), ginkgo biloba, fig and the like can be suitably selected. These plant-based deodorizing ingredients may be used alone or in a mixed state. In particular, the plant-based deodorizing component is preferably neutralized by reacting with both of an acidic gas and a basic gas. Alternatively, a plant deodorant component for neutralizing an acidic gas and a plant deodorant component for neutralizing an alkaline gas may be used in combination.

The flavoring agent is intended to absorb offensive odor such as fecal and urine odor as one of flavor components and convert the offensive odor into a good flavor (aroma) for flavoring. Therefore, the blend fragrance has a sensory deodorizing effect that is recognized as a good fragrance to humans by smelling in an environment where malodor, which is one of the constituents of fragrance, exists. Hereinafter, the unpleasant feeling due to the malodor is reduced by the sensory deodorizing effect, and the malodor is harmonized.

[ organic solvent ]

The organic solvent as the other main component of the aerosol liquid can dissolve the deodorizing component to prepare the aerosol liquid, and the prepared aerosol liquid can be sprayed into the processing space to form the most suitable particles. As the organic solvent, higher fatty acid esters and alcohols are preferable. The higher fatty acid ester preferably has 16 to 20 carbon atoms in total, and examples thereof include isopropyl myristate, butyl myristate, hexyl laurate, isopropyl palmitate, and the like. Of these, isopropyl myristate is particularly suitable. The alcohol is preferably a lower alcohol having 2 to 3 carbon atoms, and examples thereof include ethanol, isopropanol, and propanol. Of these, ethanol is particularly suitable. The organic solvent may be mixed with a hydrocarbon solvent such as n-alkane and iso-alkane, a glycol ether having 3 to 6 carbon atoms, a ketone solvent, or the like.

[ other ingredients ]

The deodorizing aerosol of the present invention can also contain, in addition to the above components, an aromatic agent, a mold preventive agent for molds, fungi, or the like, an antibacterial agent, a bactericide, a stabilizer, an antistatic agent, an antifoaming agent, an excipient, and the like, as appropriate, in the aerosol stock solution, for example, by containing an aromatic agent in the aerosol stock solution, odor floating in the treatment space can be masked by the fragrance of the aromatic agent, and examples of the aromatic agent include aromatic components such as orange oil, lemon oil, lavender oil, peppermint oil, eucalyptus oil, citronella oil, lime oil, grapefruit oil, jasmine oil, camellia oil, green tea essential oil, limonene, α -pinene, linalool, geraniol, phenethyl alcohol, amyl cinnamaldehyde, isopropyl benzaldehyde, benzyl acetate, and the like, and a fragrance component such as phytol (cis-3-hexenol) or phyllal called "green fragrance", and the like are added, and the aerosol liquid is made into a fragrance tone such as orange, rose, lavender, and the like by adding an aromatic agent, so that the consumer's-3-hexenol, a relaxing effect, a toilet-2-isothiazoline-2-benzothiazole, a thistle-2-isothiazoline-2-benzothiazole, and the like can be added, 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, compressed air, and the like. The above-mentioned propellant can be used alone or in a mixed state, but is easy to use when LPG is used as a main component.

The volume ratio (a/b) of an aerosol raw liquid (a) and a propellant (b) of a deodorizing aerosol of the present invention is adjusted to 10/90 to 50/50. By adjusting the range, at least a part of the sprayed aerosol raw liquid can be formed as the adhesive particles. Thus, the adhesive particles can reliably reach the exposed portion in the processing space, and the floating particles can be prevented from floating in the processing space in an amount to the extent of giving an unpleasant feeling due to excessive fragrance. When both the adhesive particles and the floating particles are formed, the balance between the two is optimal. In this way, the adhesive particles and the floating particles are present in the optimum state, and can play their roles to maximize the deodorizing effect. When the volume ratio (a/b) is made smaller than 10/90, that is, when the proportion of the propellant (b) sealed in the pressure-resistant container is increased, the aerosol raw liquid to be sprayed is more finely divided than necessary, and therefore, the number of adhering particles is reduced. Accordingly, since the amount of the adhering particles adhering to the exposed portion in the processing space is insufficient, the odor continuously generated from the odor source adhering to the exposed portion cannot be sufficiently deodorized, and the durability of the deodorizing effect may be insufficient. On the other hand, when the volume ratio (a/b) is greater than 50/50, that is, when the ratio of the propellant (b) sealed in the pressure-resistant container is small, it is difficult to form the aerosol raw liquid to be ejected into adhesive particles and floating particles having particle diameters in an optimum range, and therefore the aerosol raw liquid immediately settles down upon ejection. Therefore, the number of floating particles floating in the treatment space is insufficient, and it becomes difficult to rapidly deodorize the offensive odor.

< deodorizing Aerosol >

As described above, the deodorizing component, the organic solvent, the propellant, and other components added as necessary are selected and sealed in the pressure-resistant container, thereby completing the aerosol product. The aerosol product is the deodorizing aerosol of the present invention, and the aerosol raw liquid is sprayed to the processing space. The aerosol raw liquid is mainly composed of a deodorizing component and an organic solvent, and is strictly different from the propellant, but since the aerosol liquid and the propellant are discharged to the outside of the pressure resistant container at the same time, in the following description, the aerosol content including the aerosol liquid and the propellant may be treated as the "aerosol raw liquid".

The following describes an injection valve provided in the deodorizing aerosol according to the present invention. The deodorizing aerosol according to the present invention is mainly composed of a pressure-resistant container (aerosol container), a quantitative injection valve, and an injection button. The quantitative injection valve is connected to an injection button of an operation section for injecting the aerosol liquid, and the injection button is provided with an injection port through which the aerosol raw liquid is injected from the aerosol container to the outside (treatment space).

When the spray button of the deodorizing aerosol is pressed 1 time, the quantitative spray valve is operated by the pressure of the spraying agent, and the aerosol liquid in the pressure-resistant container rises to the spray port and is sprayed into the treatment space. The ejection volume of the aerosol collagen liquid is adjusted to 0.1 to 0.4mL, more preferably 0.2 to 0.4 mL. If the amount is within such a range, at least a part of the aerosol collagen liquid is formed as adhesive particles. When both the adhesive particles and the floating particles are formed, the respective particles are formed in a well-balanced manner so that the optimum deodorization effect can be exhibited in the processing space. If the ejection volume is less than 0.1mL, the ejection volume is too small, so that the adhesive particles cannot be sufficiently attached to the exposed portion in the processing space, and it becomes difficult to deodorize the malodor continuously generated from the malodor source attached to the exposed portion. Further, since the number of floating particles is also reduced, deodorization against the bad odor floating in the air in the processing space is also insufficient. On the other hand, if the ejection volume exceeds 0.4mL, the aerosol liquid is more than necessary discharged in the treatment space, so that there is a fear of unpleasant feeling to consumers who do not like strong fragrance, and the amount of aerosol liquid used is too large, so that it is economically disadvantageous.

The deodorizing aerosol is adjusted so that the ejection force at a distance of 20cm from the ejection orifice is 0.3 to 10.0 g/f at 25 ℃. In such a range, the adhesive particles formed of the aerosol liquid can smoothly reach the exposed portion in the treatment space by 1-time spraying, and the effect of the deodorizing component can be rapidly exhibited. Further, the nozzle diameter of the nozzle is preferably set to 0.2 to 1.0 mm. In this case, the particle diameter and the ejection force can be appropriately adjusted, and at least a part of the aerosol raw liquid ejected into the processing space is optimally formed as adhesive particles, thereby deodorizing the malodor continuously generated from the malodor source attached to the exposed portion.

The particle diameter of the sprayed particles sprayed from the deodorizing aerosol is preferably adjusted to 40 to 60 [ mu ] m at 25 ℃ in 90% of the cumulative volume distribution at a spraying distance of 15 cm. If the amount is within such a range, the aerosol raw liquid is sprayed to 2.5 to 3.5m³In the treatment space of (3), 50% by volume or more of the sprayed aerosol collagen liquid can be formed as the adhesive particles, and a sufficient amount of the adhesive particles can be rapidly moved and adhered to the exposed portion in the treatment space. Therefore, the malodor continuously generated from the malodor source attached to the exposed portion can be deodorized by the deodorizing component of the adhesive particles. If the particle diameter of the sprayed particles is less than 40 μm at 25 ℃ and 90% of the particle diameter of the cumulative volume distribution at a spraying distance of 15cm, many particles are difficult to reach the exposed portion because the particle diameter is too small, and a sufficient amount of adhesive particles is not formed. As a result, it becomes difficult to effectively deodorize the malodor continuously generated from the malodor source attached to the exposed portion. On the other hand, if the particle size exceeds 60 μm, the particle size becomes too large, and it becomes difficult to control the behavior of the adhesive particles, and it becomes difficult to appropriately adhere to the exposed portion.

Further, it is more preferable that the particle diameter of the sprayed particles is adjusted to 5 μm or less at 10% particle diameter and 20 to 40 μm at 50% particle diameter of the cumulative volume distribution at 25 ℃ and at a spraying distance of 15 cm. The particle diameter of the ejected particles having such a cumulative volume distribution has a wide distribution width. As a result, when the aerosol solution was sprayed 1 time into the treatment space with the deodorizing aerosol, adhesive particles having a large particle diameter and floating particles having a small particle diameter were formed.

Since the floating particles are formed to have a smaller particle diameter than the adhering particles, the aerosol raw liquid can be quickly diffused and float in the processing space when being ejected into the processing space. Therefore, the malodors remaining in the air in the treatment space can be deodorized by the deodorizing component of the floating particles. In this way, by adjusting the particle size to the above-described optimum range so that some of the aerosol raw liquid to be sprayed forms floating particles, the floating particles exhibit different behaviors from the adhering particles, and the offensive odor can be effectively deodorized together with the adhering particles.

< diffusion simulation >

FIG. 1 shows a state in which a deodorizing aerosol according to the present invention is sprayed onto a 3m substrate³The diffusion simulation in the processing space of (1). The method of analyzing the concentration of the drug used in the diffusion simulation of fig. 1 will be described below.

When analyzing the concentration of the drug, the state of diffusion of the drug (aerosol liquid) with the progress of time is outputted as the analysis result. First, the spatial distribution of the air velocity, temperature, and the like is not analyzed until the spatial distribution becomes stable by the air flow calculation means, then the drug is generated from the aerosol product, and the spatial distribution of the drug concentration is predicted by the steady state analysis by the concentration calculation means using the analyzed air velocity distribution and the like. And, the change of the concentration distribution due to time is predicted by transient analysis.

The airflow calculation means is a means for obtaining the speed of the airflow and the direction of the airflow (wind speed, wind direction)/the temperature of the air (hereinafter sometimes referred to as "airflow state") by discretizing a 3-dimensional advection diffusion equation by a finite difference method in a simulation space and numerically solving the equation. The airflow calculating means is configured to repeatedly calculate, between adjacent lattice points in each of the micro-divided regions, a value obtained by numerical analysis using a finite difference method at each minute time, based on a k-epsilon turbulence pattern (composed of a momentum transport equation (1), a turbulent energy transport equation (2), and a turbulence dissipation rate transport equation (3)) of a Navier-Stokes equations (Navier-Stokes equations) in which moving elements of a velocity, a direction, and a pressure of an airflow are set as variables, a heat transport equation (4), and the advection diffusion equation composed of continuous equations (5) to (8), and to determine, as predicted wind speed data of each lattice point, a wind direction, an air temperature, and a wind pressure at each lattice point, using the value, when the wind speed, the wind direction, the air temperature, and the wind pressure between the lattice points are in a predetermined equilibrium state, predicted wind speed data of each lattice point can be determined using the value, Predicted wind direction data and predicted temperature data.

[ transporting equation of momentum ]

[ number 1]

[ transfer equation of turbulent energy ]

[ number 2]

[ transfer equation of turbulent dissipation ratio ]

[ number 3]

[ Heat transport equation ]

[ number 4]

[ continuous formula ]

[ number 5]

C1, C2, C3, Ct: constant number

U_i: components of instantaneous wind velocity vector of airflow

P: wind pressure

ρ: density of air

v: coefficient of kinematic viscosity

v_t: coefficient of vortex viscosity

k: turbulent energy

Epsilon: dissipation ratio of turbulent flow

The concentration calculating means is a means for obtaining a concentration distribution by discretizing a 3-dimensional concentration diffusion dominant equation by a finite difference method in a simulation space with respect to a target drug. That is, the concentration calculating means is configured to repeatedly calculate, using numerical analysis by a finite difference method at each minute time, a concentration diffusion dominance equation constituted by a transport equation (9) for a chemical (diffusing substance) between adjacent lattice points in each minute divided region, when the calculated airflow state (predicted wind speed data, predicted wind direction data, and predicted air temperature data) at each lattice point in the minute divided region and the amount of generation of the diffusing substance are given, and to determine, using the value, a steady state solution as the predicted chemical concentration data at each lattice point when the chemical concentration at each lattice point becomes an equilibrium state. Further, in the process of repeating the calculation, the cumulative value of the minute time and the drug concentration in each minute divided region at that time are recorded for each predetermined specific time, whereby an unsteady state solution of the predicted drug concentration data can be determined. Further, by setting the amount of generation of the diffusing substance to a dimensionless amount, the predicted drug concentration data may be predicted not as an absolute value but as a relative value corresponding to the amount of generation of the diffusing substance.

[ transporting equation of the diffused Material ]

[ number 6]

U_j: components of instantaneous wind velocity vector of airflow

C: concentration per unit volume of diffusing species

d: generating term of diffusion substance

D_m: coefficient of diffusion

As shown in FIG. 1(a), the analysis target was set at about 3m³The analysis shape of the deodorizing aerosol 1 in which the user 2 and the ejection port 1a are directed obliquely upward was arranged in the processing space (width 78cm ×, depth 169cm ×, ceiling height 230 cm).

The analysis conditions were set to a wind speed of 0 m/sec, and the influence of indoor and outdoor heat generation and temperature was ignored. The analysis of the spatial distribution of the concentration in the air of the diffused aerosol raw liquid was carried out by ejecting the aerosol raw liquid through the ejection port 1a of the deodorizing aerosol 1 with an ejection capacity of 0.2mL per 1 time and an ejection force at a distance of 20cm from the ejection port of 2.9g · f at 25 ℃.

Fig. 1(b) is a result image of diffusion simulation of the concentration (ppm) in air of the aerosol liquid after 10 seconds, 30 seconds, 60 seconds, 120 seconds, and 170 seconds after the aerosol 1 is sprayed 1 time after the treatment space. In fig. 1(b), a region having a concentration of 0.0007ppm in the air of the aerosol raw liquid is denoted by symbol a in each image. By the above analysis, as shown in fig. 1(b), after the spraying, the aerosol liquid diffused rapidly, and reached from the ceiling surface to the floor surface of the treatment space 60 seconds after the start of the spraying, and the result that the diffusion proceeded to the entire treatment space 120 seconds after the start of the spraying was obtained. The "diffusion to the entire treatment space" here means a state in which the concentration of the aerosol liquid in the air is 0.0007ppm or more in a volume of 95% or more of the treatment space, as shown in the image after 120 seconds in fig. 1 (b). Incidentally, since the normal toilet use time of a person is about 5 to 15 minutes, if the diffusion time of the aerosol liquid into the entire toilet space is 120 seconds, deodorization can be sufficiently performed within the toilet use time. Further, 170 seconds after the start of the injection, the aerosol raw liquid was diffused until the concentration of the aerosol raw liquid became uniform in the entire treatment space. Therefore, when a sufficient time has elapsed after the ejection, the adhesion of the adhesive particles to all the surfaces of the wall surface, the floor surface, and the ceiling surface in the processing space is completed, and the adhered state is maintained. Then, as described above, the malodor continuously generated from the malodor source attached to the exposed portion is deodorized by the deodorizing component.

On the other hand, the deodorizing component of the floating particles gradually volatilizes to deodorize the offensive odor remaining in the air in the processing space. In particular, there are urine odor due to ammonia and feces odor due to hydrogen sulfide, methyl mercaptan and the like among the offensive odors in toilets, ammonia is lighter than air and is likely to stay near ceilings, and hydrogen sulfide and methyl mercaptan are heavier than air and are likely to stay near floors. However, as shown in fig. 1(b), since the aerosol raw liquid sprayed from the deodorizing aerosol 1 spreads over the entire treatment space 120 seconds after the start of spraying, both the offensive odor staying near the ceiling and the offensive odor staying near the floor can be deodorized by the floating particles. It is to be noted that ammonia is an alkaline gas, and hydrogen sulfide and methyl mercaptan are acid gases. The aerosol collagen liquid contains deodorizing components capable of reacting with alkaline gas and acidic gas to neutralize, and any odor substance can be deodorized by chemical deodorization. The deodorizing component is preferably a mixture of a plant deodorizing component capable of reacting with an alkaline gas to neutralize and a plant deodorizing component capable of reacting with an acidic gas to neutralize, or a plant deodorizing component capable of reacting with both an alkaline gas and an acidic gas to neutralize.

As described above, in the deodorizing aerosol according to the present invention, since the particles formed from the sprayed aerosol raw liquid are 2 types of particles having different behaviors, the respective particles exist in an optimal state, and can exert the deodorizing effect to the maximum extent by assuming the respective roles. Therefore, the adhering particles and the floating particles can exhibit excellent deodorizing effects on both of the odor remaining in the air in the processing space and the odor generated by the odor source adhering to the exposed portion in the processing space.

In the case where the ejection volume and the ejection force are set to be small as compared with the diffusion simulation shown in fig. 1 as the analysis conditions, for example, in a mode in which the ejection volume is set to 0.1mL per 1 time and the ejection force at a distance of 20cm from the ejection opening is set to 0.4g · f at 25 ℃, the result of the diffusion simulation in which the aerosol liquid rapidly diffuses to the entire treatment space can be obtained as in the diffusion simulation shown in fig. 1. In the case where the ejection volume and the ejection force are set to be large as compared with the diffusion simulation shown in fig. 1, for example, in a mode in which the ejection volume is set to 0.4mL per 1 time and the ejection force at a distance of 20cm from the ejection opening is set to 7.0g · f at 25 ℃, the result of the diffusion simulation in which the aerosol liquid is rapidly diffused to the entire treatment space can be obtained as in the diffusion simulation shown in fig. 1.

In the above-described manner, the deodorizing aerosol of the present invention is sprayed 1 time with the aerosol raw liquid to 2.5 to 3.5m³The deodorizing effect of (2) can be obtained with excellent immediate effect and durability. 2.5 to 3.5m³The space (a) is approximately equal to the toilet space (80-85 cm × wide and 140-180 cm × cm ceiling 230cm high) of a general house, so that, if the deodorizing aerosol according to the present invention is used, the deodorizing effect can be maintained for a long time by quickly deodorizing the offensive odor in the toilet of the general house, and the deodorizing aerosol according to the present invention is formed by spraying the deodorizing aerosol to the aerosol liquid in the treatment spaceSome of the particles of (2) are formed as floating particles. Therefore, the concentration of the aerosol collagen liquid (floating particles) diffused in the treatment space decreases the amount of the adhesive particles, and the concentration in the treatment space becomes low. Therefore, the fragrance from the floating particles is reduced, and the unpleasant feeling to the consumer who does not like strong fragrance can be suppressed.

Examples

< measurement of injection force and particle diameter >

Deodorizing aerosol (examples 1 to 3) having the characteristic configuration of the present invention was prepared, and the ejection force was measured. Further, the particle diameter of the sprayed particles was measured with respect to the deodorizing aerosol of example 1. In the aerosol stock solution of deodorizing aerosol, 1.35g (10 w/v%) of a plant extract and 0.4g (3 w/v%) of a harmonizing flavor were mixed as deodorizing components, and ethanol (anhydrous) as an organic solvent was mixed as a remainder (balance), to prepare 13.5mL in total.

An aerosol canister with a fixed-volume injection valve (0.2 mL/push) was filled with 13.5mL of aerosol liquid and 31.5mL of propellant (LPG gas as a main agent) at an internal pressure of 0.46MPa, thereby producing a total amount of 45mL of deodorizing aerosol in which the volume ratio (a/b) of aerosol liquid (a) to propellant (b) was 30/70, and this was assumed to be example 1.

An aerosol canister with a fixed-volume injection valve (0.1 mL/push) was filled with 13.5mL of aerosol liquid and 31.5mL of propellant (LPG gas as a main agent) at an internal pressure of 0.35MPa, thereby producing a total amount of 45mL of deodorizing aerosol in which the volume ratio (a/b) of aerosol liquid (a) to propellant (b) was 30/70, and this was assumed to be example 2.

An aerosol canister with a fixed-volume injection valve (0.4 mL/push) was filled with 13.5mL of aerosol liquid and 31.5mL of propellant (LPG gas as a main agent) at an internal pressure of 0.50MPa, thereby producing a total amount of 45mL of deodorizing aerosol in which the volume ratio (a/b) of aerosol liquid (a) to propellant (b) was 30/70, and this was assumed to be example 3.

The ejection force was measured by pressing the ejection button of the deodorizing aerosol of example 1 times, and ejecting the aerosol from the ejection port at distances of 5cm, 10cm, and 20cm to the measurement surface of the tens (measurement device). As a result of the measurement, the ejection force at a distance of 5cm from the ejection opening was 3.2 g.f at 25 ℃, the ejection force at a distance of 10cm from the ejection opening was 3.2 g.f at 25 ℃, and the ejection force at a distance of 20cm from the ejection opening was 2.9 g.f at 25 ℃.

The deodorizing aerosol injection force of examples 2 and 3 was measured by pressing the respective injection buttons 1 time, and injecting the aerosol onto the measurement surface of the tens (measurement device) at a distance of 20cm from the injection port. As a result of the measurement, the ejection force from the ejection orifice of the deodorizing aerosol of example 2 at a distance of 20cm was 0.4g · f at 25 ℃. The ejection force from the ejection orifice of the deodorizing aerosol of example 3 at a distance of 20cm was 7.0g · f at 25 ℃.

The particle size was measured by pressing the spray button of the deodorizing aerosol of example 1 times, and measuring the particle size by a laser diffraction/scattering method at a distance of 15cm from the spray opening. As a result of the measurement, the cumulative volume distribution had a 10% particle diameter (Dv10) of 2.5 μm, a 50% particle diameter (Dv50) of 33.2 μm, and a 90% particle diameter (Dv90) of 53.4. mu.m.

< deodorizing efficacy test >

For the deodorizing aerosol of the present invention, in order to confirm the deodorizing effect, deodorizing aerosols (examples 4 and 5) prepared in the same manner as in example 1 were prepared, and a deodorizing effect test by an olfactometry was performed. For comparison, a deodorizing aerosol (comparative example 1) different from the present invention was prepared, and the same deodorizing effect test was performed.

A deodorizing aerosol was produced by the same raw material and production method as those of the deodorizing aerosol of example 1, except that a small amount of citrus flavor was added to the aerosol raw liquid as an aromatic agent, and this was defined as example 4. Except that a small amount of orange flavor was added to the aerosol raw liquid as an aromatic agent, a deodorizing aerosol was produced by the same raw material and production method as those of the deodorizing aerosol of example 1, and this was defined as example 5.

In comparative example 1, a conventional commercially available deodorizing aerosol containing a fatty acid salt as a deodorizing component, a quaternary ammonium salt as a sterilizing component, and ethanol as an organic solvent was used.

In the deodorizing efficacy test, at 3m³A predetermined amount of odor substance showing a simulated smell of feces and urine is dispersed in the treatment space (2). Then, the deodorizing aerosol was sprayed 1 time in the treatment space, and immediately after the spraying (after 0 minute), 5 minutes, 10 minutes, 20 minutes, 30 minutes, and 60 minutes, the odor in the treatment space was evaluated by the evaluation group member by the 9-step pleasure/unpleasantness notation. However, since the deodorizing aerosol of comparative example 1 is an aerosol product not provided with a fixed-amount injection valve, continuous injection for 1 second was performed in accordance with the usage of comparative example 1, instead of performing fixed-amount injection for 1 time. The injection amount is determined by measuring the deodorizing aerosol before and after injection and by calculating the weight difference.

The evaluation criteria of the 9-step pleasure/unpleasantness representation were based on the efficacy test method of the fragrance deodorant council, set as "+ 4: extremely pleasant "," + 3: very pleasant "," + 2: pleasantness "," + 1: slightly pleasant "," 0: no pleasure nor no pleasure "," -1: slightly unpleasant "," -2: unpleasant "," -3: very unpleasant "," -4: extremely unpleasant ". The case where the odorous substance was not treated with the deodorizing aerosol after the odor substance was dispersed was evaluated as-3. The results (pleasure/unpleasantness) of the deodorizing efficacy test of examples 4, 5 and comparative example 1 are shown in table 1.

[ Table 1]

The results of the deodorizing efficacy test were that both examples 4 and 5 did not have a deodorizing efficacy lower than "+ 1: a somewhat pleasant "assessment. Specifically, the deodorizing aerosol of example 4 confirmed the fragrance of citrus at each time point of 0 minute, 5 minutes, and 10 minutes after the start of spraying. After 20 minutes from the start of spraying, the fragrance became non-fragrant, but the feces and urine simulated odor was harmonized. The deodorizing aerosol of example 5 was confirmed to have an orange fragrance 5 minutes after the start of spraying. The fragrance gradually decreased 10 minutes after the start of the injection, but the feces-urine simulated odor was harmonized.

On the other hand, the deodorizing aerosol of comparative example 1 confirmed the simulated fecal odor 0 minutes after the start of spraying, and disappeared the simulated fecal odor 5 minutes after the start of spraying. However, after 10 minutes from the injection, the simulated fecal odor was generated again, and then, 60 minutes after the start of the injection, the simulated fecal odor gradually became stronger.

As described above, the deodorizing aerosols of examples 4 and 5 of the present invention exhibited excellent deodorizing effects in both immediate effect and persistence, as compared with comparative example 1, which is a commercially available product.

< chemical deodorization efficacy test >

With respect to the deodorizing aerosols of examples 1 and 4, a chemical deodorizing efficacy test by a machine measuring method was carried out. The test method is a deodorizing efficacy test method according to the synergetics of aromatic deodorizing and deodorizing agent, wherein a 10L plastic container is filled with a malodorous component (ammonia), and after filling, a deodorizing aerosol is sprayed 1 time. The ammonia concentration in the container was measured using a gas detector before, after, and after spraying the deodorizing aerosol for 1 hour, and after spraying for 10 hours, and the attenuation rates after spraying for 1 hour and after spraying for 10 hours were calculated by the following equations.

Attenuation ratio (%) -100- { post-injection ammonia concentration (ppm)/pre-injection ammonia concentration (ppm) } × 100

The results (decay rate) of the chemical deodorization efficacy test in examples 1 and 4 are shown in table 2.

[ Table 2]

As a result of the chemical deodorization efficacy test, the attenuation rates of both examples 1 and 4 were 60% or more after injection for 1 hour, and the attenuation rate after injection for 10 hours was further increased to 87%. In this manner, the deodorizing aerosols of examples 1 and 4 exhibited a lasting deodorizing effect from the spraying up to 10 hours.

Industrial applicability

The deodorizing aerosol of the present invention is used for deodorizing the offensive odor in a treated space, can be suitably used as a deodorant for toilets, and can also be used for deodorizing living spaces such as living rooms, bedrooms, halls, kitchens, bathrooms, and the like.

Description of the reference numerals

1: deodorant aerosol

1 a: jet orifice

Claims

1. A deodorizing aerosol for eliminating offensive odor in a toilet, comprising:

a pressure-resistant container which is sealed with an aerosol collagen liquid containing a deodorizing component and an organic solvent, and a propellant, and which is provided with a quantitative injection valve; and

ejecting the aerosol collagen liquid in the pressure resistant container to 2.5m by pressing the ejection button 1 time³～3.5m³In the treatment space of (3), 50% by volume or more of the sprayed aerosol collagen liquid forms adhesive particles adhering to an exposed portion in the treatment space within 60 minutes.

2. The deodorizing aerosol according to claim 1, wherein the deodorizing component is neutralized by reacting with any one of an alkaline gas and an acidic gas.

3. The deodorizing aerosol according to claim 1 or 2, wherein the deodorizing component comprises a mixture of a plant deodorizing component capable of reacting with an alkaline gas to neutralize and a plant deodorizing component capable of reacting with an acidic gas to neutralize, or a plant deodorizing component capable of reacting with both an alkaline gas and an acidic gas to neutralize.

4. The deodorizing aerosol according to claim 1 or 2, wherein 90% of the sprayed particles formed when the aerosol liquid in the pressure resistant container is sprayed by pressing the spray button have a particle diameter of 40 μm to 60 μm in a volume cumulative distribution at 25 ℃ and a spraying distance of 15 cm.

5. The deodorizing aerosol according to claim 1 or 2, wherein a volume ratio a/b of the aerosol liquid a and the propellant b sealed in the pressure-resistant container is 10/90 to 50/50.

6. The deodorizing aerosol according to claim 1 or 2, wherein the organic solvent is at least 1 selected from higher fatty acid esters and alcohols.

7. A deodorising aerosol as claimed in claim 1 or 2, wherein the deodorising ingredient comprises a botanical extract and a flavourant.

8. The deodorizing aerosol according to claim 1 or 2, wherein the jet orifice has a jet orifice diameter of 0.2mm to 1.0 mm.

9. The deodorizing aerosol according to claim 1 or 2, wherein the aerosol liquid further contains a leaf alcohol and/or a leaf aldehyde.

10. The deodorizing aerosol according to claim 1 or 2, wherein the sprayed aerosol liquid is diffused throughout the treatment space until 120 seconds later.

11. The deodorizing aerosol according to claim 1 or 2, wherein the concentration of the aerosol liquid in the air is 0.0007ppm or more in 95% or more of the treatment space 120 seconds after the start of spraying.