Odor removal spray products

The spray product uses a high-vapor-pressure organic solvent with specific concentration and particle size to directly address adsorbed malodors on indoor articles, ensuring efficient odor removal by adhesion and volatilization.

JP7883370B2Active Publication Date: 2026-07-01EARTH CORP

Patent Information

Authority / Receiving Office
JP · JP
Patent Type
Patents
Current Assignee / Owner
EARTH CORP
Filing Date
2021-12-24
Publication Date
2026-07-01

AI Technical Summary

Technical Problem

Conventional deodorizing products fail to effectively remove malodors adsorbed on indoor articles such as wallpapers and curtains, as they primarily diffuse fragrance components in the air without addressing the adsorbed malodors.

Method used

A spray product containing an organic solvent with a vapor pressure of 30 mmHg or more at 20°C, at a concentration of 60% by mass or more, and a particle size of 30 μm or more, applied directly to the malodorous articles to dissolve and volatilize odor components.

Benefits of technology

Efficient removal of malodors from articles by ensuring the solvent adheres, dissolves, and rapidly volatilizes with the odor components, achieving effective odor elimination.

✦ Generated by Eureka AI based on patent content.

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Abstract

To provide a spray product for malodor removal that makes it possible to readily and efficiently remove a malodor on articles such as a wallpaper and a curtain.SOLUTION: The inventive spray product for malodor removal contains a stock solution containing an organic solvent with a vapor pressure of 30 mmHg or more at 20°C, and a spray container to be filled with the stock solution. The organic solvent is contained in the stock solution at a rate of 60 mass% or more. The 50% particle size is 30 μm or more in volume cumulative distribution at a spray distance of 50 cm.SELECTED DRAWING: None
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Description

Technical Field

[0001] The present invention relates to a spray product for removing malodors.

Background Art

[0002] Conventionally, products for deodorizing or aromatizing indoor spaces such as living spaces have been proposed. Among such products, spray-type products are excellent in immediate effect. For example, Patent Document 1 describes an aerosol preparation containing glycol and an ether blowing agent.

[0003] Many products sprayed into such spaces diffuse fragrance components in the space to perform deodorization by masking. On the other hand, malodors generated in daily life may be adsorbed on articles such as wallpapers and curtains. When such malodors are adsorbed on such articles, simply diffusing fragrance components in the space cannot remove the adsorbed malodors from the articles, which becomes a source of malodors. Therefore, there is a need for a means to simply and efficiently remove malodors adhering to articles installed indoors and not easily movable.

Prior Art Documents

Patent Documents

[0004]

Patent Document 1

Summary of the Invention

Problems to be Solved by the Invention

[0005] An object of the present invention is to provide a spray product for removing malodors that can simply and efficiently remove malodors adhering to articles such as wallpapers and curtains.

Means for Solving the Problems

[0006] As a result of intensive studies to solve the above problems, the present inventor has found a solution means having the following configuration and has completed the present invention. (1) A spray product for odor removal comprising a stock solution containing an organic solvent with a vapor pressure of 30 mmHg or more at 20°C, and a spray container for sealing the stock solution, wherein the organic solvent is contained in the stock solution at a rate of 60% by mass or more, and the 50% particle size in the volume integrated distribution at a spray distance of 50 cm is 30 μm or more. (2) The odor-removing spray product described in (1) above, wherein the undiluted solution further contains fragrance components. (3) A spray product for removing malodorous odors as described in (1) or (2) above, further comprising a spray agent. (4) A method of removing malodorous odors by spraying any of the odor-removing spray products described in (1) to (3) above onto an object on which malodorous components have been adsorbed. [Effects of the Invention]

[0007] According to the odor-removing spray product of the present invention, odors adhering to items such as wallpaper and curtains can be easily and efficiently removed by spraying an organic solvent having a specific vapor pressure to a specific particle size. [Modes for carrying out the invention]

[0008] The odor-removing spray product according to the present invention comprises a stock solution containing an organic solvent (hereinafter sometimes referred to as "specific organic solvent") having a vapor pressure of 30 mmHg or more at 20°C, and a spray container. When such specific organic solvent is sprayed onto a target article, it efficiently adheres to the article, dissolves odor components, and rapidly volatilizes together with the odor components. As a result, odors adsorbed on the target article can be efficiently removed.

[0009] When using organic solvents with a vapor pressure of less than 30 mmHg at 20°C, the low vapor pressure means that after adsorbing onto the target material and dissolving the odor components, the solvent does not easily volatilize. Therefore, the organic solvent remains on the target material for a long time along with the adsorbed odor, making efficient removal impossible.

[0010] The specific organic solvent is not limited as long as its vapor pressure at 20°C is 30 mmHg or higher. Specific examples of organic solvents include methanol, ethanol, and isopropanol. Among these, ethanol and isopropanol are preferred, considering factors such as solubility of odor components, effects on the human body, and odor.

[0011] The specific organic solvent is contained in the stock solution at a concentration of 60% by mass or more, preferably 80% by mass or more. It is preferable that the specific organic solvent be contained in the stock solution at a concentration of 60% by mass or more, as it is easier to adjust to an appropriate particle size and spray pattern, and it is even preferable that it be contained at a concentration of 80% by mass or more, as it is easier to adjust. Furthermore, it has excellent solubility for malodorous components and volatilizes rapidly in a dissolved state. If the concentration is less than 60% by mass, a sufficient amount of the specific organic solvent cannot be applied to the target article. As a result, the solubility of the malodorous components becomes poor, and a sufficient odor removal effect is not achieved. Furthermore, the volatility of the specific organic solvent from the target article decreases, making it difficult to efficiently remove malodorous components.

[0012] In addition to specific organic solvents, the undiluted solution may also contain, for example, fragrance components, UV absorbers, antioxidants, disinfectants, fungicides, pest control components, surfactants, thickeners, and water. Fragrance components are particularly preferable because they can mask malodorous components that remain after being removed by specific organic solvents.

[0013] The fragrance components are not limited and include, for example, vanillin, methyl dihydrojasmonate, α-hexyl cinnamaldehyde, linalool, limonene, tripral, cis-3-hexenol, linalyl acetate, benzyl acetate, benzaldehyde, octanal, benzyl benzoate, galaxolide, coumarin, citronellol, and borneol. Among these fragrance components, those with a vapor pressure of 0.1 mmHg or less at 25°C are preferred because they tend to remain in the target article, and vanillin, methyl dihydrojasmonate, α-hexyl cinnamaldehyde, benzyl benzoate, galaxolide, coumarin, citronellol, and borneol are particularly preferred. When fragrance components are contained in the stock solution, they are preferably contained in a proportion of 0.001 to 10% by mass. Only one fragrance component may be used, or two or more may be used in combination.

[0014] The spray container used in the odor-removing spray product according to the present invention is not limited to any container that can spray the above-mentioned undiluted liquid in a mist form and in which the 50% particle size in the volume integrated distribution at a spraying distance of 50 cm is 30 μm or larger. Examples of such spray containers include aerosol cans and sprayers.

[0015] When using an aerosol can, the concentrate and the spray agent should be sealed inside the aerosol can. Examples of spray agents include liquefied petroleum gas (LPG), dimethyl ether, 1,3,3,3-tetrafluoropropene, nitrogen gas, and carbon dioxide. The ratio of concentrate to spray agent is not limited, but it is preferable that the concentrate is 60-95% by mass and the spray agent is 5-40% by mass. On the other hand, when using a sprayer, the concentrate should be sealed inside a container such as a hand sprayer (mist bottle).

[0016] If the particle size of the undiluted solution when sprayed is such that the 50% particle size (D50) in the volume integrated distribution at a spraying distance of 50 cm is 30 μm or more, a sufficient amount of the undiluted solution can be applied to the target object. As a result, the specific organic solvent can efficiently dissolve the malodorous components, and the malodorous odor adsorbed on the target object can be efficiently removed. The 50% particle size in the volume integrated distribution at a spraying distance of 50 cm is preferably 40 μm or more, and more preferably 50 μm or more. Furthermore, it is preferably 200 μm or less, and more preferably 100 μm or less.

[0017] On the other hand, if the 50% particle size in the volume integrated distribution at a spray distance of 50 cm is less than 30 μm, the undiluted solution particles tend to volatilize before adhering to the target object, making it impossible to apply a sufficient amount of the undiluted solution to the object. As a result, certain organic solvents may not be able to sufficiently dissolve odor components, making it difficult to remove odors adsorbed on the target object.

[0018] To achieve a 50% particle size of 30 μm or larger in the volume integrated distribution at a spraying distance of 50 cm, when using an aerosol can, for example, the particle size can be adjusted by changing the nozzle used, or by adjusting the ratio of the concentrate to the spray agent, the viscosity of the concentrate, etc. When using a sprayer, for example, the particle size can be adjusted by changing the nozzle used, or by adjusting the viscosity of the concentrate, etc. The 50% particle size of the volume integrated distribution can be measured, for example, using a particle size distribution analyzer at 25°C.

[0019] The spraying pressure at a spraying distance of 50 cm is preferably, for example, 10 to 60 mN. If the spraying pressure is within such a range, a specific organic solvent can be uniformly and efficiently adhered to a vertical surface such as wallpaper or a curtain. The spraying pressure is more preferably 15 to 50 mN, and even more preferably 30 to 50 mN. The spraying pressure is measured, for example, when using an aerosol can, by spraying for 2 seconds from a position 50 cm away at 25°C onto a circular flat plate (diameter 40 mm) of a digital force gauge (manufactured by IMADA CO., LTD., model number: DST-2N), and the maximum spraying pressure at that time is defined as the "spraying pressure". When using a sprayer, it is measured by spraying twice in the same manner, and the maximum spraying pressure at that time is defined as the "spraying pressure".

[0020] The spray product for removing malodors according to the present invention is not intended to remove malodors floating in a space such as a room, but is intended for articles on which malodors are adsorbed. That is, the spray product for removing malodors according to the present invention is not sprayed into a space (in the air), but is sprayed toward the target article on which the malodor is adsorbed. Specifically, the spray product for removing malodors according to the present invention may be sprayed from a location 50 cm away from the target article.

[0021] The articles targeted for deodorization by the spray product for removing malodors according to the present invention are not limited, and examples include articles that easily adsorb malodors. Such articles that easily adsorb malodors include, for example, paper products formed of paper such as pulp, Japanese paper, and synthetic paper, fiber products formed of natural fibers such as cotton, hemp, and wool, and synthetic fibers such as rayon, nylon, and polyester, and resin products formed of synthetic resins such as polyvinyl chloride and polyolefin. Specifically, examples include wallpaper, curtains, stuffed toys, clothing, futons, sofas, towels, handkerchiefs, etc. formed of paper, fibers, resins, etc. The spray product for removing malodors according to the present invention has the above-described configuration, so that the sprayed stock solution is less likely to drip or flow. Therefore, the spray product for removing malodors according to the present invention is particularly preferably used, for example, to remove malodors from wallpaper or curtains that are vertical surfaces.

[0022] The spraying amount of the stock solution contained in the spray product for removing malodor according to the present invention may be determined according to the intensity of the malodor. For example, per 100 cm of the treatment surface 2 , it may be sprayed so that 1 to 2000 mg of the stock solution contained in the spray product for removing malodor adheres. The spraying time is not limited. To make 1 to 2000 mg of the stock solution contained in the spray product for removing malodor adhere, for example, when using an aerosol can, it may be sprayed for 0.5 to 5 seconds. Further, it may be sprayed so that the spraying amount per second is 1 to 100 mg. When using a sprayer, it may be sprayed 1 to 2 times.

[0023] The malodor components that can be removed by the spray product for removing malodor according to the present invention are not limited. For example, p-cresol, indole, skatole, decanal, benzothiazole, caproic acid, enanthic acid, myristic acid, benzoic acid, methyl salicylate, isovaleric acid, nonenal, etc. may be mentioned. Among these malodor components, for example, p-cresol, indole, and skatole, which are causative substances of excretion odor that are likely to occur in daily life, can be preferably removed.

Example

[0024] Hereinafter, the present invention will be specifically described with reference to examples and comparative examples, but the present invention is not limited to these examples.

[0025] (Example 1) As shown in Table 1, absolute ethanol as a specific organic solvent was mixed at a ratio of 98.9% by mass and vanillin as a fragrance component at a ratio of 1.1% by mass to prepare a stock solution. Next, as shown in Table 1, the obtained stock solution was sealed in a 420 mL aerosol can at a ratio of 90% by mass and LPG as a spray agent at a ratio of 10% by mass to obtain a spray product for removing malodor. As the valve attached to the aerosol can, a valve having a stem diameter of 0.4 mm and an under-tap diameter of 0.45 mm was used. As the nozzle attached to the aerosol can, a nozzle having a spray hole diameter of 0.7 mm and a straight nozzle was used.

[0026] The 50% particle size (D50) of the obtained odor-removing spray product was measured using a particle size distribution analyzer based on the volume integrated distribution at a spraying distance of 50 cm. First, the sample temperature of the obtained odor-removing spray product was set to 25°C. Next, the odor-removing spray product was placed at a position where the distance between the nozzle tip of the odor-removing spray product and the laser beam emitted from the laser light emission unit of the particle size distribution analyzer was 50 cm. Then, the odor-removing spray product was sprayed so that the sprayed material passed perpendicularly through the laser beam. Assuming that the sprayed particles followed a rosin-Rammler distribution, D50 was calculated to be 80.9 μm. The results are shown in Table 1.

[0027] (Example 2) As shown in Table 1, a stock solution was prepared in the same procedure as in Example 1, except that anhydrous ethanol was mixed in a ratio of 98.7% by mass and vanillin in a ratio of 1.3% by mass. Then, as shown in Table 1, a spray product for odor removal was obtained in the same procedure as in Example 1, except that the obtained stock solution was sealed in an aerosol can in a ratio of 75% by mass and LPG in a ratio of 25% by mass. The D50 of the obtained spray product for odor removal was measured at a spray distance of 50 cm using the same procedure as in Example 1, and was found to be 58.9 μm. The results are shown in Table 1.

[0028] (Example 3) As shown in Table 1, a stock solution was prepared using the same procedure as in Example 1, except that anhydrous ethanol was mixed in a ratio of 98.3% by mass and vanillin in a ratio of 1.7% by mass. Then, as shown in Table 1, a spray product for odor removal was obtained using the same procedure as in Example 1, except that the obtained stock solution was sealed in an aerosol can with 60% by mass and LPG in a ratio of 40% by mass. The D50 of the obtained spray product for odor removal was measured at a spray distance of 50 cm using the same procedure as in Example 1, and was found to be 35.0 μm. The results are shown in Table 1.

[0029] (Example 4) As shown in Table 1, a stock solution was prepared in the same procedure as in Example 1, except that anhydrous ethanol was mixed in a ratio of 60% by mass, deionized water in a ratio of 38.3% by mass, and vanillin in a ratio of 1.7% by mass. Next, as shown in Table 1, a spray product for odor removal was obtained in the same procedure as in Example 1, except that the obtained stock solution was sealed in an aerosol can in a ratio of 60% by mass and LPG in a ratio of 40% by mass. The D50 of the obtained spray product for odor removal was measured at a spray distance of 50 cm using the same procedure as in Example 1, and was found to be 53.0 μm. The results are shown in Table 1.

[0030] (Example 5) As shown in Table 1, a stock solution was prepared in the same procedure as in Example 1, except that anhydrous ethanol was mixed in a ratio of 60% by mass, deionized water in a ratio of 38.9% by mass, and vanillin in a ratio of 1.1% by mass. Next, as shown in Table 1, a spray product for odor removal was obtained in the same procedure as in Example 1, except that the obtained stock solution was sealed in an aerosol can in a ratio of 90% by mass and LPG in a ratio of 10% by mass. The D50 of the obtained spray product for odor removal was measured at a spray distance of 50 cm using the same procedure as in Example 1, and was found to be 104.0 μm. The results are shown in Table 1.

[0031] (Example 6) As shown in Table 2, the stock solution was prepared using the same procedure as in Example 2, except that α-hexyl cinnamaldehyde was used instead of vanillin. The stock solution was then sealed in an aerosol can in the same manner as in Example 2 to obtain an odor-removing spray product. The D50 of the obtained odor-removing spray product was measured at a spraying distance of 50 cm using the same procedure as in Example 1, and was found to be 67.1 μm. The results are shown in Table 2.

[0032] (Example 7) As shown in Table 2, the stock solution was prepared using the same procedure as in Example 2, except that isopropanol was used instead of anhydrous ethanol. The stock solution was then sealed in an aerosol can in the same manner as in Example 2 to obtain an odor-removing spray product. The D50 of the obtained odor-removing spray product was measured at a spraying distance of 50 cm using the same procedure as in Example 1, and was found to be 79.0 μm. The results are shown in Table 2.

[0033] (Example 8) As shown in Table 2, the stock solution was prepared using the same procedure as in Example 2. The obtained stock solution was sealed in a pump spray container to obtain an odor-removing spray product. A trigger sprayer (T95 95J704, hole diameter φ0.6 mm, spray volume 1 mL) manufactured by Canyon Co., Ltd. was used as the pump spray container. The D50 of the obtained odor-removing spray product was measured at a spraying distance of 50 cm using the same procedure as in Example 1, and was found to be 178.7 μm. The results are shown in Table 2.

[0034] (Comparative Example 1) As shown in Table 3, a stock solution was prepared in the same manner as in Example 1, except that anhydrous ethanol was mixed in a ratio of 98% by mass and vanillin in a ratio of 2% by mass. Then, as shown in Table 3, a spray product for odor removal was obtained in the same manner as in Example 1, except that the obtained stock solution was sealed in an aerosol can in a ratio of 50% by mass and LPG in a ratio of 50% by mass. The D50 of the obtained spray product for odor removal was measured at a spray distance of 50 cm using the same procedure as in Example 1, and was found to be 26.0 μm. The results are shown in Table 3.

[0035] (Comparative Example 2) As shown in Table 3, a stock solution was prepared using the same procedure as in Example 1, except that anhydrous ethanol was mixed in a ratio of 96% by mass and vanillin in a ratio of 4% by mass. Then, as shown in Table 3, a spray product for odor removal was obtained using the same procedure as in Example 1, except that the obtained stock solution was sealed in an aerosol can with 25% by mass and LPG in a ratio of 75% by mass. The D50 of the obtained spray product for odor removal was measured at a spray distance of 50 cm using the same procedure as in Example 1, and was found to be 15.0 μm. The results are shown in Table 3.

[0036] (Comparative Example 3) As shown in Table 3, a stock solution was prepared using the same procedure as in Example 1, except that anhydrous ethanol was mixed in a ratio of 90% by mass and vanillin in a ratio of 10% by mass. Then, as shown in Table 3, a spray product for odor removal was obtained using the same procedure as in Example 1, except that the obtained stock solution was sealed in an aerosol can with 10% by mass and LPG in a ratio of 90% by mass. The D50 of the obtained spray product for odor removal was measured at a spray distance of 50 cm using the same procedure as in Example 1, and was found to be 13.4 μm. The results are shown in Table 3.

[0037] (Comparative Example 4) As shown in Table 3, a stock solution was prepared in the same procedure as in Example 1, except that anhydrous ethanol was mixed in a ratio of 50% by mass, deionized water in a ratio of 48.3% by mass, and vanillin in a ratio of 1.7% by mass. Next, a spray product for odor removal was obtained in the same procedure as in Example 1, except that the obtained stock solution was sealed in an aerosol can in a ratio of 90% by mass and LPG in a ratio of 10% by mass. The D50 of the obtained spray product for odor removal was measured at a spray distance of 50 cm using the same procedure as in Example 1, and was found to be 47.2 μm. The results are shown in Table 3.

[0038] The odor-removing spray products obtained in the examples and comparative examples were evaluated for (1) the adhesion of fragrance components, (2) the persistence of fragrance components, (3) the volatility of odor components, (4) the deodorizing effect, and (5) the drying properties.

[0039] <(1) Adhesion of fragrance components> A 4cm x 4cm piece of cloth (JIS L 0803: attached white cloth for colorfastness testing) was sprayed with the odor-removing spray product for 2 seconds from a position where the nozzle tip of the product was 50cm away from the cloth. Immediately after spraying, the fragrance components (vanillin or α-hexyl cinnamaldehyde) remaining on the cloth were extracted with acetone, and the remaining fragrance components were quantified by gas chromatography. The amount of fragrance components adhering to the cloth (adhesion amount) was measured. The analysis conditions for gas chromatography are as follows. The results are shown in Tables 1-3.

[0040] Detector: Flame ionization detector Column: DB-17 (manufactured by Agilent), a fused silica tube with an inner diameter of 0.25 mm and a length of 30 m, coated on the inner surface with (50% phenyl)-methylpolysiloxane to a thickness of 0.25 μm. Column temperature: Hold at 50°C for 5 minutes, then increase temperature to 250°C at a rate of 8°C / min and hold for 5 minutes. Inlet and detector temperature: Constant temperature of approximately 300°C Carrier gas: Helium Flow rate: Adjust so that the retention time of the internal standard substance is approximately 18 minutes.

[0041] Next, the adhesion rate of fragrance components to the fabric was calculated using the following formula (I). The results are shown in Tables 1-3. Fragrance component adhesion rate (%) = (A / B) × 100 (I) A: Amount of fragrance component attached to the cloth (mg) B: Amount of fragrance components (mg) contained in the sprayed odor-removing product.

[0042] <(2) Persistence of fragrance components and (3) Volatility of malodorous components> 20 mg of p-cresol was dropped onto a 4 cm x 4 cm piece of cloth (JIS L 0803: attached white cloth for colorfastness testing) as an odor component. Immediately after dropping the p-cresol, the odor-removing spray product was sprayed for 2 seconds from a position where the distance between the nozzle tip of the product and the cloth was 50 cm. After 10 minutes, the remaining fragrance components and p-cresol on the cloth were extracted with acetone, and the remaining fragrance components and p-cresol were quantified by gas chromatography and the remaining amounts were measured. The analytical conditions for gas chromatography were as described above. The results are shown in Tables 1-3.

[0043] Next, the residual rate of fragrance components remaining on the fabric was calculated using the following formula (II). The results are shown in Tables 1-3. Percentage of remaining fragrance components (%) = (C / D) × 100 (II) C: Amount of fragrance component remaining on the cloth after 10 minutes (mg) D: Amount of fragrance component (mg) contained in the sprayed odor-removing spray product.

[0044] Next, the volatilization rate of p-cresol dispersed from the cloth was calculated using the following formula (III). The results are shown in Tables 1-3. Volatilization rate of p-cresol (%) = (1 - (E / F)) × 100 (III) E: Amount of p-cresol remaining on the cloth after 10 minutes (mg) F: Amount of p-cresol dropped onto the cloth (20 mg)

[0045] (4) Deodorizing effect Two 4cm x 4cm pieces of cloth (JIS L 0803: attached white cloth for colorfastness testing) were each dropped with 20mg of p-cresol as an odor component. Immediately after dropping the p-cresol, the odor-removing spray product was sprayed onto one of the pieces of cloth for 2 seconds from a position where the nozzle tip of the product was 50cm away from the cloth. After 10 minutes, five expert panelists evaluated whether the cloths had been deodorized by sensory evaluation. Specifically, the odor intensity of the cloth sprayed with the odor-removing spray product was evaluated on a 6-point scale as shown below. Next, the odor intensity of the cloth not sprayed with the odor-removing spray product was evaluated on a 6-point scale as shown below. Comparing the odor intensities of the two cloths, a "○" was given if the odor intensity of the cloth sprayed with the odor-removing spray product was 1 or more lower, and a "×" was given if it was less than 1. The results are shown in Tables 1-3. 0: Odorless 1: A smell that can finally be detected 2: A faint smell that can be identified. 3: Easily detectable odors 4: Strong smell 5: Strong smell

[0046] <(5) Drying property> A 4cm x 4cm cloth (JIS L 0803: attached white cloth for colorfastness testing) was sprayed with the odor-removing spray product from a position where the distance between the nozzle tip of the product and the cloth was 50cm, so that approximately 1g of the undiluted solution adhered to the cloth. Next, the mass of the cloth with the undiluted solution adhered was measured. After letting the cloth with the undiluted solution adhere for 10 minutes, the mass of the cloth was measured again. Then, the volatilization rate of the undiluted solution was calculated using the following formula (IV). Volatilization rate of the undiluted solution (%) = {(HI) / (HG)} × 100 (IV) G: Mass of the cloth before spraying (g) H: Mass of the cloth immediately after spraying (g) I: Mass of the cloth after 10 minutes of spraying (g)

[0047] The calculated volatilization rate was evaluated for its drying properties based on the following criteria. The results are shown in Tables 1-3. ◎: When the volatilization rate after 10 minutes is 50% or more. ○: When the volatilization rate after 10 minutes is 30% or more but less than 50%. ×: If the volatilization rate after 10 minutes is less than 30%.

[0048] [Table 1]

[0049] [Table 2]

[0050] [Table 3]

[0051] As shown in Tables 1 and 2, the odor-removing spray products obtained in Examples 1 to 8 exhibited good drying properties after spraying and effectively removed odors. Furthermore, the odor-removing spray products obtained in Examples 1 to 3 and 6 to 8, which used only specific organic solvents without water as the solvent, showed particularly excellent drying properties and were fast-drying.

[0052] On the other hand, as shown in Table 3, the odor-removing spray products obtained in Comparative Examples 1 to 3 have a 50% particle size of less than 30 μm in the volume integrated distribution at a spraying distance of 50 cm. Therefore, the particles of the undiluted solution tend to volatilize before adhering to the cloth, making it impossible to apply a sufficient amount of the undiluted solution to the cloth. As a result, the specific organic solvent cannot sufficiently dissolve the odor components, making it difficult to remove the odor. The odor-removing spray product obtained in Comparative Example 4 contains less than 60% by mass of the specific organic solvent in the undiluted solution. Therefore, it is impossible to apply a sufficient amount of the specific organic solvent to the target item using the cloth. As a result, the solubility of the odor components is poor, and a sufficient deodorizing effect is not achieved. Furthermore, the volatility of the specific organic solvent from the target item is reduced, making it difficult to efficiently remove the odor components.

Claims

1. The product comprises a stock solution containing an organic solvent and fragrance component whose vapor pressure at 20°C is 30 mmHg or higher, and a spray container for sealing the stock solution. The organic solvent is at least one of ethanol and isopropanol, and is contained in the stock solution in a proportion of 60% by mass or more. The 50% particle size in the volume integrated distribution at a spray distance of 50 cm is 30 μm or larger. A spray product for removing unpleasant odors.

2. The odor-removing spray product according to claim 1, further containing a spraying agent.

3. A method for removing malodorous odors adsorbed on an article by spraying the malodorous odor removal spray product described in claim 1 or 2 onto the article on which malodorous components have been adsorbed.