Fixed-volume aerosol product and deodorizing method

Abstract

To provide a constant-amount spray type aerosol product and a deodorizing method which can exert a sufficient deodorizing effect not only on the space of a toilet but also on floor surfaces and the like with a small amount of use. [Solution] A metered dose aerosol product that includes an aerosol composition containing a concentrate containing a toilet deodorizing component and a propellant, where the blending ratio (volume ratio) of the concentrate to the propellant is 20 / 80 to 80 / 20, the deodorizing component is contained in the aerosol composition at 0.5 w / v% or more, and the amount of spray per time is 0.2 to 0.4 mL.

Description

[Technical field]

[0001] The present invention relates to a metered-dose aerosol product and a deodorizing method, and more particularly to a metered-dose aerosol product and a deodorizing method capable of simultaneously deodorizing a toilet space and a floor surface. [Background technology]

[0002] Various methods for deodorizing toilet spaces have been studied in the past. Patent Document 1 proposes a toilet deodorizer that reduces particles of 100 μm or more in the toilet to 50% or less. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] JP 2003-235949 A Summary of the Invention [Problem to be solved by the invention]

[0004] However, the bad smell in the toilet space comes not only from the bad smelling substances present in the space, but also from the floor, walls, etc. The technology described in Patent Document 1 aims to deodorize the toilet space, but is not sufficient in terms of deodorizing the floor, etc. In addition, the technology described in Patent Document 1 is a spray, and if a large amount is used, it may cause an unpleasant irritating sensation to the user.

[0005] The present invention has been made in consideration of such conventional problems, and aims to provide a metered-dose aerosol product and a deodorizing method that, with a small amount of use, can exert a sufficient deodorizing effect not only on the air space of a toilet but also on floor surfaces and the like. [Means for solving the problem]

[0006] As a result of intensive research, the present inventors discovered that by spraying a fixed amount of an aerosol composition containing a specific amount of a deodorizing component to produce a specific spray particle diameter, the sprayed aerosol composition exerts an excellent deodorizing effect not only on the toilet space but also on malodorous substances on the floor surface, and thus completed the present invention. That is, the fixed amount spray type aerosol product and deodorizing method of the present invention, which solve the above problems, mainly include the following configurations.

[0007] (1) A metered-dose aerosol product comprising an aerosol composition containing a concentrate containing a toilet deodorizing component and a propellant, wherein the blending ratio (volume ratio) of the concentrate to the propellant is 20 / 80 to 80 / 20, the deodorizing component is contained in the aerosol composition at 0.5 w / v % or more, and the amount of spray per time is 0.2 to 0.4 mL.

[0008] (2) The volume average particle diameter of the injected particles at a position 15 cm away from the nozzle (D A ) is 17 to 86 μm.

[0009] (3) The diameter of the falling particles (D) is the aerodynamic diameter measured by an Andersen sampler placed 50 cm horizontally and 70 cm below the nozzle. B The metered-dose aerosol product according to (1) or (2), wherein the particle size is 2.50 to 8.00 μm.

[0010] (4) A deodorizing method using a metered-dose aerosol product, comprising spraying an aerosol composition containing a concentrate containing a toilet deodorizing component at 0.5 w / v % or more in the aerosol composition and a propellant in a blending ratio (volume ratio) of the concentrate to the propellant of 20 / 80 to 80 / 20 in an amount of 0.2 to 0.4 mL per spray. Effect of the Invention

[0011] According to the present invention, it is possible to provide a metered-dose aerosol product and a deodorizing method which, with a small amount of use, can exert a sufficient deodorizing effect not only on the air space of a toilet but also on floor surfaces and the like. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0012] <Fixed-volume aerosol product> The metered dose aerosol product (hereinafter, simply referred to as the aerosol product) of one embodiment of the present invention comprises an aerosol composition containing a concentrate containing a toilet deodorizing component and a propellant. The blending ratio (volume ratio) of the concentrate to the propellant is 20 / 80 to 80 / 20. The deodorizing component is contained in the aerosol composition at 0.5 mass / volume (w / v)% or more. The aerosol product has a single spray volume of 0.2 to 0.4 mL. Each of the components will be described below. The aerosol product of this embodiment has a blending ratio of the concentrate to the propellant, the single spray volume of the aerosol composition, and the volume average particle diameter (D A ) is adjusted to be within the above-mentioned specific range. Therefore, other configurations (for example, the shape of the aerosol product, the type of deodorant component, various physical properties such as the container internal pressure, etc.) are not particularly limited as long as they satisfy the above-mentioned range. Therefore, the following detailed description is merely an example except for the essential features of the present embodiment.

[0013] The aerosol product of this embodiment is used in a toilet space. In this embodiment, the toilet space is a private or semi-private space with a volume of 2 to 6 m. 3 This refers to a space that is about the size of a toilet. Such toilet spaces include toilet spaces in ordinary homes with one toilet bowl, as well as each of the semi-private rooms in a public space where multiple semi-private rooms are lined up. In addition, the aerosol product of the present embodiment can achieve its purpose by spraying multiple times in spaces larger than the above.

[0014] (undiluted) The concentrate contains a toilet deodorizing component (hereinafter, also simply referred to as a deodorizing component). The deodorizing component is not particularly limited. For example, the deodorizing component is an inorganic salt. The metal ions constituting the inorganic salt are preferably heavy metal ions, and more preferably zinc ions, copper ions, iron ions, silver ions, manganese ions, cobalt ions, nickel ions, and the like. The anions that are counter ions of these metal ions are not particularly limited. For example, the anions are sulfate ions, chloride ions, oxide ions, acetate ions, nitrate ions, and the like. More specifically, the deodorizing component is a silver compound such as silver nitrate, silver sulfate, silver chloride, silver oxide, and silver acetate; a zinc compound such as zinc chloride, zinc sulfate, zinc oxide, and zinc acetate; a copper compound such as copper chloride (I), copper chloride (II), and copper sulfate (II); an iron compound such as iron chloride (II), iron chloride (III), iron sulfate (II), and iron sulfate (III); and a nickel compound such as nickel chloride and nickel sulfate.

[0015] The deodorizing component may be a natural plant extract or plant essential oil, a synthetic organic acid and its metal salt, or a deodorizing compound. The natural plant extract is catechin, tannin, flavonoid, polyphenol, etc. Among these, the plant extract is preferably a tea extract, a persimmon extract, an alder plant extract, a Theaceae plant extract, etc. The deodorizing component may be bay essential oil, sage essential oil, thyme essential oil, ginger essential oil, peppermint essential oil, geranium essential oil, nutmeg essential oil, etc., which have good decomposition properties for various malodorous components. The deodorizing component may be chlorophyll and its derivatives, etc. The synthetic deodorizing component may be amino acids, polyvalent carboxylic acids, organic acids, fatty acid aldehydes having 2 to 4 carbon atoms, glyoxal, glutaraldehyde, trimethylglycine, acrylic acid derivatives, glycols, etc. The surfactant may be a nonionic or amphoteric surfactant. Furthermore, powders such as silicon dioxide and its metal salts may be used. The deodorant components may be used in combination.

[0016] The malodorous substances that the deodorizing component is intended to deodorize may be any malodorous substances that are primarily generated in toilet spaces, such as hydrogen sulfide, methanethiol, and ammonia.

[0017] The content of the deodorizing component in the aerosol composition may be 0.5 w / v% or more, and is preferably 1.0 w / v% or more. The content of the deodorizing component is appropriately adjusted according to the type and concentration of the malodorous substance to be deodorized. For example, when the main malodorous substance is hydrogen sulfide with a concentration of 0.06 ppm, the content of the deodorizing component in the aerosol composition of 0.5 w / v% can sufficiently exert a deodorizing effect on the toilet space and floor surface. The upper limit of the content of the deodorizing component is not particularly limited. Depending on the type of deodorizing component, stickiness may occur when the concentration is high. Therefore, the content of the deodorizing component in the aerosol composition is preferably 50 w / v% or less, and more preferably 20 w / v% or less. By the content of the deodorizing component being within the above range, the aerosol product can exert a sufficient deodorizing effect not only in the space of the toilet space but also on the floor surface and the like.

[0018] The content of the deodorizing component in the concentrate is preferably 1.0 w / v% or more, more preferably 2.0 w / v% or more. The content of the deodorizing component in the concentrate is preferably 100% by mass or less, more preferably 80 w / v% or less. By having the content of the deodorizing component within the above range, the aerosol product can exhibit a sufficient deodorizing effect not only in the space of the toilet space, but also on floor surfaces, etc.

[0019] The concentrate may contain a solvent in addition to the deodorant component. The solvent may be contained to dissolve the deodorant component appropriately, to facilitate mixing with the propellant in the aerosol container, and to assist the deodorant component in diffusing in the toilet space.

[0020] The solvent is not particularly limited. Examples of the solvent include ethanol, isopropyl alcohol (IPA), propylene glycol monomethyl ether, isopropyl myristate (IPM), propylene glycol, water, etc. Among these, the solvent is preferably ethanol or IPA, because it is easy to dissolve volatile compounds, is inexpensive, and is easy to handle.

[0021] When a solvent is included, the content of the solvent in the undiluted solution is preferably more than 0 w / v%, and more preferably 10 w / v% or more. On the other hand, the content of the solvent in the undiluted solution is preferably 99 w / v% or less, and more preferably 90 w / v% or less. If the solvent content exceeds 99 w / v%, the aerosol product will contain less deodorant ingredients, and the effect of adding the deodorant ingredients may not be fully achieved.

[0022] The concentrate may contain optional components in addition to the above-mentioned deodorant components and solvents, which are suitably blended in. For example, the optional components include nonionic, anionic or cationic surfactants, various fragrances, and the like.

[0023] The fragrance is not particularly limited. Examples of the fragrance include aldehydes C6 to C12, anisaldehyde, acetal R, acetophenone, acetyl cedrene, adoxal, allyl amyl glycolate, allyl cyclohexane propionate, α-damascone, β-damascone, δ-damascone, ambroxan, amyl cinnamic aldehyde, amyl cinnamic aldehyde dimethyl acetal, amyl valerianate, amyl salicylate, isoamyl acetate, isoamyl salicylate, aurantiol, acetyl eugenol, bacdanol, benzyl acetone, acetyl eugenol ... tate, benzyl alcohol, benzyl salicylate, bergamir acetate, bornyl acetate, butyl butyrate, pt-butyl cyclohexanol, pt-butyl cyclohexyl acetate, ot-butyl cyclohexanol, ot-butyl cyclohexyl acetate, benzaldehyde, benzyl formate, caryophyllene, cashmeran, carvone, cedro amber, cedryl acetate, cedrol, celestride, cinnamic alcohol, cinnamic aldehyde, cis-jasmone, citral, citral dimethicone acetal, citrasal, citronellal, citronellol, citronellyl acetate, citronellyl formate, citronellyl nitrile, cyclacet, cyclamen aldehyde, cyclaprop, carone, coumarin, cinnamyl acetate, delta-C6 to C13 lactone, dimethylbenzyl carbinol, dihydrojasmone, dihydrolinalool, dihydromyrcenol, dimetol, dimyrcetol, diphenyl oxide, ethyl vanillin, eugenol, fruitate, fenchyl alcohol, phenylethyl phenylacetate ester, galaxolide, gamma-C6~C13 lactone, alpha-pinene, beta-pinene, limonene, myrcene, beta-caryophyllene, geraniol, geranyl acetate, geranyl formate, geranyl nitrile, hedione, helional, heliotropin, cis-3-hexenol, cis-3-hexenyl acetate, cis-3-hexenyl salicylate, hexyl cinnamic aldehyde, hexyl salicylate, hyacinth dimethyl acetal, hydrotropic alcohol, hydroxycitronellal, indole, ionone,Isobornyl acetate, isocyclocitral, Iso E Super, isoeugenol, isononyl acetate, isobutylquinoline, jasmal, jasmolactone, jasmophillan, coavone, ligustral, lilial, lime oxide, linalool, linalool oxide, linalyl acetate, lyral, manzanate, mayol, menthanil acetate, mensonate, methyl anthranilate, methyl eugenol, menthol, alpha-methyl ionone, beta-methyl ionone, gamma-methyl ionone, methyl isoeugenol, methyl Chill Lavender Ketone, Methyl Salicylate, Muguet Aldehyde, Mugol, Musk TM-II, Musk 781, Musk C14, Muscone, Civetone, Cyclopentadecanone, Cyclohexadecenone, Cyclopentadecanolide, Ambledolide, Cyclohexadecanolide, 10-Oxahexadecanolide, 11-Oxahexadecanolide, 12-Oxahexadecanolide, Ethylene Brassyllate, Ethylene Dodecanedioate, Oxahexadecen-2-one, 14-Methyl-Hexadecanolide, 14-Methyl-Hexadecanolide, Musk Ketone, Mu Scitibetin, Nopyr Alcohol, Nopyr Acetate, Neryl Acetate, Nerol, Methyl Phenyl Acetate, Miracaldehyde, Neobergamate, Oakmoss No.1, Oribone, Oxyphenylone, p-Cresyl Methyl Ether, Pentalid, Phenylethyl Alcohol, Phenylethyl Acetate, Rubafuran, Damascenone, Raspberry Ketone, Dimethylbenzyl Carbinyl Acetate, Jasmacyclene, Methyl Naphthyl Ketone, Rosephenone, Rose Oxide, Sandalore, Sandela, Santarex, Styraryl Acetate , styryl propionate, terpineol, terpinyl acetate, tetrahydrolinalool, tetrahydrolinalyl acetate, tetrahydrogeraniol, tetrahydrogeranyl acetate, tonalid, traseolide, triplal, thymol, vanillin, verdox, yara yara, anise oil, bay oil, borealis oil, cananga oil, cardamom oil, cassia oil, cedarwood oil, orange oil, mandarin oil, tangerine oil, basil oil, nutmeg oil, citronella oil, clove oil, coriander oil, elemi oil, eucalyptus oil, fennel oil,Galbanum oil, geranium oil, Japanese cypress oil, cypress oil, jasmine oil, lavandin oil, lavender oil, lemon oil, lemongrass oil, lime oil, neroli oil, oakmoss oil, ocotia oil, patchouli oil, peppermint oil, perilla oil, petitgrain oil, pine oil, rose oil, rosemary oil, camphor oil, aromatic oil, clary sage oil, sandalwood oil, spearmint oil, spike lavender oil, star anise oil, thyme oil, tonka bean tincture, turpentine oil, crocodile bean tincture, vetiver oil, ylang-ylang oil, grapefruit oil, yuzu oil, benzoin, Peru balsam, tolu balsam, tuberose oil, musk tincture, castoreum tincture, civet tincture, ambergris tincture, etc. Fragrances may be used in combination.

[0024] In addition, the aerosol composition may contain preservatives such as methyl parahydroxybenzoate, antifungal agents such as 1-hydroxy-2-pyridone salts (piroctone olamine), dyes such as food dyes, antioxidants such as dibutylhydroxytoluene, ascorbic acid, and tocopherol acetate, and ultraviolet absorbers such as 2-ethylhexyl paramethoxycinnamate, oxybenzone, and hydroxymethoxybenzophenone sulfonic acid.

[0025] (Propellant) The propellant is a content that is pressurized and filled into the aerosol container together with the concentrate. The propellant is sprayed together with the concentrate from the nozzle of the spray button, which will be described later, by operating the aerosol metering valve, which will be described later. At that time, the propellant imparts a driving force when spraying the concentrate, and breaks the aerosol composition into fine particles, which are then dispersed in the space.

[0026] The type of the propellant is not particularly limited. For example, the propellant is a liquefied gas. Examples of the liquefied gas include liquefied petroleum gas, aliphatic hydrocarbons having 3 to 5 carbon atoms such as propane, normal butane, isobutane, normal pentane, and isopentane, hydrofluoroolefins such as trans-1,3,3,3-tetrafluoroprop-1-ene and trans-2,3,3,3-tetrafluoroprop-1-ene, dimethyl ether, and mixtures thereof. The liquefied gas may be used in combination with a compressed gas. Examples of the compressed gas include nitrogen gas, carbon dioxide gas, nitrous oxide gas, and compressed air. Among these, the propellant is preferably liquefied petroleum gas.

[0027] In the aerosol product of this embodiment, the blend ratio (volume ratio) of the concentrate to the propellant at 20°C may be 20 / 80 to 80 / 20, preferably 30 / 70 to 80 / 20, and more preferably 30 / 70 to 70 / 30. If the blend ratio (volume ratio) of the propellant exceeds 80 volume%, the aerosol composition is likely to have a poor deodorizing effect on floor surfaces, etc. On the other hand, if the blend ratio (volume ratio) of the propellant is less than 20 volume%, the aerosol composition is likely to have a poor deodorizing effect in space.

[0028] In a state where the concentrate and the propellant are filled, the internal pressure of the aerosol metered valve at 20°C is preferably 0.15 MPa or more, more preferably 0.16 MPa or more. The internal pressure of the aerosol metered valve at 20°C is preferably 0.8 MPa or less, more preferably 0.7 MPa or less. If the internal pressure of the aerosol metered valve is less than 0.15 MPa, the aerosol composition may drip from the nozzle after spraying. On the other hand, if the internal pressure of the aerosol metered valve is more than 0.8 MPa, the aerosol composition may leak from the aerosol container. The internal pressure of the aerosol metered valve can be measured, for example, at 20°C by connecting a PGM-E small pressure sensor (manufactured by Kyowa Electric Industry Co., Ltd.) attached to a WGA-710C instrument conditioner (manufactured by Kyowa Electric Industry Co., Ltd.) to the aerosol metered valve.

[0029] The aerosol product containing the concentrate and the propellant is pressurized and filled into an aerosol container. The aerosol container is not particularly limited. As an example, the aerosol container is a substantially cylindrical pressure-resistant container with an opening formed at the top. The opening is a filling port for filling the aerosol composition, and after the concentrate is filled, it is closed by an aerosol metering valve described later.

[0030] The material of the aerosol container is not particularly limited, but may be, for example, metal such as aluminum or tinplate, synthetic resin such as polyethylene terephthalate, or pressure-resistant glass.

[0031] The aerosol metered dose valve is a mechanism for taking out the aerosol composition filled in the aerosol container, and is attached to the opening of the aerosol container to close the opening. The aerosol metered dose valve of this embodiment is formed with a metered dose chamber for temporarily storing the aerosol composition taken out from the aerosol container. The volume of the metered dose chamber corresponds to the volume of the aerosol composition sprayed by one spray. The volume of the metered dose chamber of this embodiment is 0.2 to 0.4 mL.

[0032] The stem mechanism is a part attached to the aerosol metered dose valve, and has an internal passage for sending the concentrate and propellant taken into the aerosol metered dose valve to the spray button, which will be described later. The internal passage is appropriately opened and closed by the stem rubber of the stem mechanism.

[0033] The spray button is a member for spraying the concentrate taken in by the aerosol metering valve through the stem mechanism from the aerosol container together with the propellant. The spray button is formed with a nozzle for spraying the aerosol composition.

[0034] The number, dimensions and shape of the nozzles are not particularly limited. For example, the number of nozzles may be one or more than two. The dimensions of the nozzles (diameter) are preferably 0.2 mm or more, more preferably 0.3 mm or more, and even more preferably 0.5 mm or more. The diameter of the nozzle is preferably 4.5 mm or less, more preferably 3.0 mm or less, and even more preferably 0.9 mm or less. The shape (cross-sectional shape) of the nozzles may be circular, elliptical, rectangular, or various indefinite shapes. The total area of ​​the nozzles is preferably 0.03 mm or less. 2 It is preferable that the thickness is 0.1 mm or more. 2 More preferably, it is 0.25 mm or more. 2 More preferably, the total area of ​​the nozzle is 16 mm 2 Preferably less than 5 mm 2 More preferably, it is 3.5 mm or less. 2 It is even more preferable that:

[0035] In the aerosol product of this embodiment, when the user operates the spray button, the stem mechanism and the aerosol metering valve are actuated, and the inside of the aerosol container is connected to the outside. As a result, a certain amount of the aerosol composition in the aerosol container is taken out of the aerosol container according to the pressure difference between the inside of the aerosol container and the outside, and is sprayed from the nozzle of the spray member.

[0036] The aerosol product of this embodiment is adjusted so that the amount of sprayed per time is 0.2 to 0.4 mL. If the amount of sprayed per time is less than 0.2 mL, the aerosol composition contains a small amount of deodorant component, and is unlikely to exhibit a sufficient deodorant effect. On the other hand, if the amount of sprayed per time exceeds 0.4 mL, the spray force becomes strong, and the sprayed aerosol composition is likely to diffuse. In addition, since the aerosol product of this embodiment has a small amount of sprayed per time of 0.2 to 0.4 mL, the user is prevented from inhaling the sprayed aerosol composition, even in a narrow space such as a toilet space. As a result, the aerosol product is unlikely to cause an unpleasant irritating sensation to the user.

[0037] In addition, the aerosol product of this embodiment specifies the blending ratio of the concentrate containing the above-mentioned predetermined amount of deodorant component and the propellant, adjusts the amount of spray per time to 0.2 to 0.4 mL, and adjusts the volume average particle diameter of the sprayed particles to be within the range described below, thereby exhibiting excellent deodorant effects not only in the space of the toilet space but also on the floor surface, etc. Therefore, the method of adjusting the amount of spray per time is not particularly limited. The amount of spray per time can be adjusted, for example, by appropriately adjusting the volume of the metering chamber in the aerosol metering valve, the time during which the inside of the aerosol container communicates with the outside when the spray button is operated, etc.

[0038] The aerosol composition sprayed by the aerosol product of this embodiment has a 50% volume average particle diameter (D A It is preferable that the volume average particle diameter (D A ) is preferably 17 μm or more, and more preferably 20 μm or more. A The volume average particle diameter (D) is preferably 86 μm or less, and more preferably 80 μm or less. A If the volume average particle diameter (D) is less than 17 μm, the aerosol product tends to be highly diffusible, making it difficult to apply to floor surfaces, etc., and the deodorizing effect tends to be reduced. A If the volume average particle diameter (D ) of the sprayed aerosol composition exceeds 86 μm, the aerosol product is likely to fall onto the floor or the like, and the effect of the deodorant in the space tends to be reduced. A ) can be calculated by spraying the aerosol composition so that it passes perpendicularly through the laser beam from a position where the distance between the laser beam irradiated from the laser light emitting unit of a particle size distribution measuring device (LDSA-1400A, Tohnichi Computer Applications Co., Ltd.) and the nozzle of the aerosol product is 15 cm, and analyzing the particle size distribution of the sprayed material using an automatic processing device.

[0039] As described above, the aerosol product of the present embodiment exerts a deodorizing effect not only in the space of the toilet space, but also on malodorous substances on the floor surface, etc. This is because the sprayed aerosol composition does not only float in the space, but also falls appropriately and exerts a deodorizing effect on the surface on which it falls. More specifically, the aerosol product of the present embodiment has a falling particle diameter (D B It is preferable that the aerodynamic diameter (described later) is adjusted to be 2.50 to 8.00 μm.

[0040] Falling particle diameter (D B ) is the particle diameter (50% volume average particle diameter of falling particles) measured by an Andersen sampler (LP-20, manufactured by Tokyo Dylec Co., Ltd.) installed 50 cm horizontally away from and 70 cm below the nozzle. The Andersen sampler is a device that collects particles in the air (sprayed aerosol composition) while classifying them. The Andersen sampler has an opening at the top, and collects particles from this opening. Therefore, the Andersen sampler can accurately measure the aerodynamic diameter and particle size distribution of falling particles.

[0041] The aerosol product of the present embodiment has an aerodynamic diameter, i.e., a falling particle diameter (D B ) is preferably 2.50 μm or more, and more preferably 2.80 μm or more. B ) is preferably 8.00 μm or less, and more preferably 7.00 μm or less. B When the falling particle diameter (D ) is less than 2.50 μm, the aerosol product becomes difficult to apply the aerosol composition to floor surfaces, etc., and the deodorizing effect tends to decrease. B If the particle size exceeds 8.00 μm, the aerosol product tends to have too much of the aerosol composition falling onto the floor or the like, reducing the deodorizing effect on the space.

[0042] In addition, the proportion of the deodorizing component contained in the particles that are 50 cm away from the nozzle and fall 70 cm downward is preferably 0.15% by mass or more, more preferably 0.17% by mass or more. In addition, the proportion of the deodorizing component is preferably 3.80% by mass or less, more preferably 3.70% by mass or less. If the proportion of the deodorizing component is less than 0.15% by mass, the aerosol product tends to have a reduced deodorizing effect, especially on floor surfaces. On the other hand, if the proportion of the deodorizing component exceeds 3.80% by mass, the floor surface, etc. tends to become sticky, or in the case of a powder deodorant, it tends to adhere to the floor surface and damage the appearance.

[0043] The manufacturing method of the aerosol product of the present embodiment is not particularly limited. For example, the aerosol product can be manufactured by filling an aerosol container with the concentrate, closing the opening of the aerosol container with an aerosol metering valve provided with a metering chamber, and pressurizing and filling the propellant through a stem mechanism. The spray button can be appropriately selected from various trigger buttons, push-down buttons, etc.

[0044] As described above, the aerosol product of the present embodiment can exert a sufficient deodorizing effect not only on the air space of the toilet but also on floor surfaces and the like with a small amount of use.

[0045] <Deodorizing method using a fixed-volume aerosol product> A deodorizing method using a metered-dose aerosol product according to one embodiment of the present invention (hereinafter also referred to as the deodorizing method) is a method in which an aerosol composition containing a concentrate containing a toilet deodorizing component at 0.5 w / v % or more in the aerosol composition and a propellant in a blending ratio (volume ratio) of the concentrate to the propellant of 20 / 80 to 80 / 20 is sprayed in an amount of 0.2 to 0.4 mL per spray.

[0046] In carrying out the deodorizing method of this embodiment, the aerosol composition and aerosol product that can be used are the same as those described in the above embodiment.

[0047] As described above in relation to the embodiment of the aerosol product, the deodorizing method of this embodiment is a method for determining the volume average particle diameter (D A It is preferable to spray the powder so that the volume average particle diameter (D A If the volume average particle diameter (D ) is less than 17 μm, the aerosol product sprayed by the deodorizing method of the present embodiment tends to have high diffusibility, making it difficult to apply to floor surfaces, etc., and the deodorizing effect tends to be reduced. A If the particle size exceeds 86 μm, the aerosol product will tend to fall onto the floor, etc., reducing the effectiveness of the deodorant in the space.

[0048] As described above in relation to the embodiment of the aerosol product, the deodorizing method of this embodiment is a method for determining the falling particle diameter (D B ) is preferably 2.50 to 8.00 μm. In this way, the deodorizing method allows the sprayed aerosol composition not only to float in space but also to fall appropriately, so that the deodorizing effect can be exerted on the surface where the composition falls.

[0049] Similarly, in the deodorizing method of the present embodiment, it is preferable to spray the aerosol composition so that the ratio of the deodorant contained in the sprayed particles that fall 70 cm downward from the nozzle at a horizontal distance of 50 cm is 0.15 to 3.80 mass% relative to the amount of the sprayed deodorant component. This allows the deodorizing method to exert a sufficient deodorizing effect on floor surfaces, etc.

[0050] In this embodiment, the number of times of spraying may be one. According to the deodorizing method of this embodiment, the amount of spraying per time is 0.2 to 0.4 mL, so a large amount of spraying is not sprayed. Therefore, the user is prevented from accidentally inhaling the sprayed aerosol composition. As a result, the deodorizing method of this embodiment is less likely to give the user an unpleasant irritating feeling. According to the deodorizing method of this embodiment, the desired effect can be obtained even with one spraying, but the number of sprayings may be two or more if necessary.

[0051] As described above, according to the deodorizing method of the present embodiment, a small amount of the composition can be used to not only deodorize the space, but also to provide a sufficient deodorizing effect on floor surfaces and the like. EXAMPLES

[0052] The present invention will be described in more detail below with reference to examples, but the present invention is not limited to these examples in any way.

[0053] <Aerosol products> Details of the aerosol products used are given below. Aerosol 1: Button nozzle diameter φ0.35 mm, flow path length 13.0 mm, injection volume 0.2 mL valve Aerosol 2: Button nozzle diameter φ0.35 mm, flow path length 13.0 mm, injection volume 1.0 mL valve <Deodorizing ingredients> Deodorizing ingredient 1: Eporion AS-111 (contains fatty acid salts, surfactants, betaine compounds, and ethanol), manufactured by Kyoritsu Seiyaku Co., Ltd. Deodorizing ingredient 2: Eporion ECAS-224 (contains fatty acid salts, surfactants, betaine compounds, and ethanol), manufactured by Kyoritsu Seiyaku Co., Ltd. Deodorizing ingredient 3: Kesmon NS-10N (contains zinc oxide), manufactured by Toagosei Co., Ltd. Deodorizing ingredient 4: Pansil SBP-K100 (contains persimmon tannin, silicate compounds, and sodium fumarate), manufactured by Release Scientific Industry Co., Ltd.

[0054] Example 1 A 71-mL aluminum aerosol container was filled with 5 mL of the original solution consisting of 3.0 parts by mass of deodorant component 1 and an appropriate amount of 99.5% ethanol, and a valve was attached. Then, the container was pressurized and filled with propellant (liquefied petroleum gas, saturated vapor pressure: 0.49 MPa (20°C)) so that the mixture ratio (volume ratio) of the original solution to the propellant was 30 / 70. A spray button was attached to prepare 50 mL of the aerosol product (the valve and button were the same as for Aerosol 1). The internal pressure of the aerosol product (internal pressure of the valve; the same applies below) (20°C) was 0.43 MPa. The internal pressure of the valve was measured at 20°C by connecting a PGM-E small pressure sensor (Kyowa Electric Industry Co., Ltd.) attached to a WGA-710C instrument conditioner (Kyowa Electric Industry Co., Ltd.) to an aerosol metering valve. By using this aerosol product, 12 mg of the deodorant component was sprayed each time.

[0055] (Examples 2 to 10, Comparative Examples 1 to 4) An aerosol product was prepared in the same manner as in Example 1, except that the deodorant ingredients, contents, valves, and buttons were changed as shown in Table 1.

[0056] [Table 1]

[0057] The aerosol products obtained in Examples 1 to 10 and Comparative Examples 1 to 4 were evaluated for spatial deodorization, for deodorization of ingrained odors, for measurement of the amount of fallen particles (mg), for measurement of the proportion of the deodorizing component that fell, and for the volume average particle diameter (D A ) and falling particle diameter (D B The results are shown in Table 1.

[0058] <Air space deodorization evaluation> The prepared aerosol product was placed in a 10 L Tedlar (registered trademark) bag and inflated with odorless air. Separately, 0.5 mL of 1 M HClaq and 0.5 M Na2Saq were mixed in a 1 L Tedlar bag to generate hydrogen sulfide, which was used as a master batch of malodorous substances. The hydrogen sulfide was extracted from the master batch and placed in the Tedlar bag containing the aerosol product so that the hydrogen sulfide concentration was approximately 1.5 ppm. The aerosol product was sprayed once in the 10 L Tedlar bag, and the hydrogen sulfide concentration was measured over time from immediately after the spray. The time until the hydrogen sulfide concentration became 1 / 10 of the initial concentration (T 01 ) was calculated and evaluated according to the following criteria. (Evaluation Criteria) ◎:T 0.1 was less than 1.0 hour. 〇:T 0.1 was greater than 1.0 hour and less than 3.0 hours. ×:T 0.1 was more than 3.0 hours.

[0059] <Evaluation of deodorizing effect on ingrained odors, measurement of the amount of fallen particles (mg), and measurement of the proportion of deodorizing ingredients that fell> In a windless space, the aerosol composition was sprayed 20 times horizontally from a height of 70 cm toward a filter paper with a diameter of 70 mm placed on the floor 50 cm ahead, and the deodorizing component was dropped onto the filter paper. The amount of the deodorizing component attached to the filter paper was measured by weighing the change in the weight of the filter paper before and after the spraying using a precision balance. The ratio of the deodorizing component that dropped was calculated by dividing the amount of deodorant attached by the amount of deodorant sprayed (20 sprays). Immediately after the spraying was completed, the filter paper with the deodorizing component attached was placed in a 1L Tedlar bag and inflated with odorless air, which was used as a test Tedlar bag. Separately, 0.5 mL of 1M HClaq and 0.5M Na2Saq were mixed in a 1L Tedlar bag to generate hydrogen sulfide, which was used as a master batch of malodorous substances. Hydrogen sulfide was extracted from the master batch and injected into a test Tedlar bag, and the hydrogen sulfide concentration was adjusted to about 2.0 ppm. After hydrogen sulfide injection, the hydrogen sulfide concentration was measured over time. From the measured values, the time until the hydrogen sulfide concentration became 1 / 10 of the initial concentration (T 01 ) was calculated and rated according to the following evaluation criteria. The reaction between the odor and the deodorant ingredient is different from the gas-liquid and gas-solid reactions in air deodorant, and on the floor it is a liquid-liquid and solid-solid reaction, and since it takes time in terms of reaction rate, ◎ was given for less than 2 hours. The percentage of the deodorant ingredient that fell was calculated by dividing the amount of fallen particles by the amount of deodorant contained in the 20 sprays. (Evaluation Criteria) ◎:T 0.1 was less than 2.0 hours. 〇:T 0.1 was greater than 2.0 hours and less than 7.0 hours. ×:T 0.1 was more than 7.0 hours.

[0060] <Volume average particle size (D A ) Measurement> The aerosol composition was sprayed so that it passed perpendicularly through the laser beam from the laser light emitting part of the particle size distribution measuring device (LDSA-1400A, Tohnichi Computer Applications Co., Ltd.) at a position where the distance between the nozzle of the aerosol product and the laser beam irradiated to the light receiving part was 15 cm, and the particle size distribution of the sprayed product was analyzed by an automatic calculation processing device to obtain the 50% volume average particle diameter (D A ) was calculated.

[0061] < Falling particle diameter (D B ) Measurement> The aerosol composition was sprayed 20 times horizontally onto an Andersen sampler (Tokyo Dailec Co., Ltd., LP-20, installed in a toilet space measuring 0.95 x 1.40 x 2.20 m high) that was placed 50 cm horizontally away from the nozzle and 70 cm below, and the particles of the aerosol composition sprayed onto the Andersen sampler were collected at a reduced pressure of 550 mmHg. Collection was performed by suction with a pump for 10 minutes immediately after spraying, and the fallen particles were collected on filter paper with a diameter of 80 mm. The pump was operated from before the aerosol composition was sprayed. The particle size distribution of the fallen particles was calculated from the weight change at each stage inside the Andersen sampler, and the falling particle diameter (D B ) was calculated.

[0062] As shown in Table 1, the aerosol products of Examples 1 to 10 were able to deodorize not only the space but also the staining odor on the floor surface at the same time. On the other hand, the aerosol products of Comparative Examples 1 and 2, in which the amount of concentrate relative to the propellant was small, were unable to deodorize the staining odor. The aerosol product of Comparative Example 3, in which the amount of concentrate relative to the propellant was large, was unable to deodorize the space. The aerosol product of Comparative Example 4, in which the amount of concentrate per spray was large, was unable to deodorize the staining odor.

Claims

1. The aerosol composition includes a concentrate containing a toilet deodorizing component and a propellant, The blending ratio (volume ratio) of the concentrate to the propellant is 20 / 80 to 80 / 20; The deodorant component is contained in the aerosol composition at 4.0 w / v % or more, The amount of each injection is 0.2 to 0.4 mL. A fixed-volume aerosol product in which the amount of deodorant ingredient that falls 70 cm downward at a horizontal distance of 50 cm from the nozzle is 0.17 to 2.25% by mass of the amount of deodorant ingredient sprayed (excluding cases where the deodorant ingredient is a harmonized fragrance).

2. A concentrate containing a toilet deodorizing component in an aerosol composition at 4.0 w / v % or more; A propellant, an aerosol composition containing the concentrate and the propellant in a blending ratio (volume ratio) of 20 / 80 to 80 / 20; The amount of each injection is 0.2 to 0.4 mL, and A deodorizing method using a constant-volume aerosol product that sprays a deodorizing component at a horizontal distance of 50 cm from the nozzle so that the amount of the deodorizing component that falls 70 cm downward is 0.17 to 2.25 mass% of the amount of the sprayed deodorizing component (excluding cases where the deodorizing component is a harmonized fragrance).

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