Mold-preventing, deodorizing, and odor-removing agent

Abstract

To provide an anti-fungal deodorizer simultaneously realizing an excellent anti-fungal effect and an excellent deodorization effect, and in addition, easy to use.SOLUTION: An anti-fungal deodorizer includes a first sheet-like substrate containing a normal-temperature volatile anti-fungal component and a second sheet-like substrate containing a deodorizer. A density of the second sheet-like substrate is 0.21 mg / mm3 to 0.50 mg / mm3.SELECTED DRAWING: None

Description

[Technical Field]

[0001] This invention relates to a mold-preventing, deodorizing, and odor-removing agent. More specifically, it relates to a mold-preventing, deodorizing, and odor-removing agent that combines excellent mold-preventing and deodorizing effects and is easy to use. [Background technology]

[0002] Odor in waste storage spaces such as trash cans and diaper disposal bins has long been a problem, and various studies have been conducted to address it. For example, Reference 1 describes a deodorant in which porous spherical regenerated cellulose particles are impregnated with a deodorizing composition containing (a) iodine and (b) plant essential oils, for the purpose of deodorizing waste storage spaces such as trash cans. Reference 2 also describes a trash can equipped with a deodorizing or deodorizing mechanism for food waste. [Prior art documents] [Patent Documents]

[0003] [Patent Document 1] Japanese Patent Publication No. 2005-65965 [Patent Document 2] Japanese Patent Publication No. 2014-201396 [Overview of the project] [Problems that the invention aims to solve]

[0004] The deodorant described in Reference 1 above contains iodine as an essential ingredient, and may cause discoloration depending on the material of the trash can. Therefore, it cannot necessarily be said to be suitable for deodorizing waste storage spaces such as trash cans.

[0005] Furthermore, while the trash can described in Reference 2 is excellent in its deodorizing and odor-removing effects on food waste, it has a complex mechanism and is difficult to use simply.

[0006] Therefore, there is a need for the development of a deodorizing agent that has excellent deodorizing and odor-eliminating effects in waste storage spaces such as trash cans, is suitable for use in trash cans, and is easy to use. [Means for solving the problem]

[0007] To solve these problems, the inventors conducted various studies and found that, in addition to eliminating the bad odor itself, the deodorizing effect of trash cans can be further enhanced by suppressing the growth of mold.

[0008] However, since components that suppress mold growth are generally highly volatile, they can be adsorbed by deodorizing agents, which not only reduces the mold growth suppression effect but also reduces the deodorizing agent's ability to adsorb unpleasant odors. As a result of diligent research, the inventors have found that in an anti-mold, deodorizing agent having a first sheet-like substrate containing a room-temperature volatile anti-mold component and a second sheet-like substrate containing a deodorizing agent, the aforementioned problems can be solved by specifying the density of the second sheet-like substrate within a certain range. This results in an agent that combines excellent anti-mold effects and excellent deodorizing effects, and is also easy to use.

[0009] In other words, the present invention relates to the following. [1] A first sheet-like substrate containing a room-temperature volatile antifungal component and a second sheet-like substrate containing a deodorizing agent, wherein the density of the second sheet-like substrate is 0.21 mg / mm³. 3 ~0.50 mg / mm³ 3 A mold-preventing, deodorizing, and odor-removing agent characterized by the following: [2] The antifungal, deodorizing, and deodorizing agent according to [1], characterized in that the second sheet-like substrate is formed from a fibrous material. [3] The antifungal, deodorizing, and deodorizing agent according to [2], characterized in that the fibrous material is one or more selected from the group consisting of natural cellulose, regenerated cellulose, bacterial cellulose, chemically modified cellulose, silk, wool, polyacrylamide, hemp, collagen, and wood wool. [4] The antifungal, deodorizing agent according to [2] or [3], characterized in that the fibrous material has a fiber diameter of 10 to 150 μm. [5] The antifungal deodorizer according to any one of [1] to [4], characterized in that the room-temperature volatile antifungal component contains a room-temperature volatile antifungal compound with a boiling point of 290°C or lower. [Effects of the Invention]

[0010] According to the present invention, it is possible to provide an antifungal, deodorizing agent that combines excellent antifungal and deodorizing effects and can be used easily. [Modes for carrying out the invention]

[0011] The following describes in detail the embodiments for implementing the mold-preventing, deodorizing, and odor-removing agent according to the present invention, but the present invention is not limited to these embodiments.

[0012] The antifungal and deodorizing agent of the present invention comprises a first sheet-like substrate containing a room-temperature volatile antifungal component and a second sheet-like substrate containing a deodorizing agent.

[0013] In the present invention, examples of the substrate used for the first sheet substrate include paper, woven fabric, nonwoven fabric, resin film, and laminates thereof.

[0014] Examples of the room-temperature volatile antifungal components include fragrances that have a room-temperature volatile antifungal effect on food waste, etc. From the viewpoint of effective diffusion in waste storage spaces such as trash cans, it is preferable to include a room-temperature volatile antifungal compound with a boiling point of 290°C or lower. Examples of these room-temperature volatile antifungal compounds include ester-based antifungal compounds, alcohol-based antifungal compounds, and menthane-based antifungal compounds. These antifungal compounds may be used individually or in combination of multiple antifungal compounds.

[0015] The ester-based antifungal compounds contained in the room-temperature volatile antifungal components of the present invention include, but are not limited to, allyl ester-based antifungal compounds such as allyl hexanoate, allyl heptanoate, allyl octanoate, etc., benzyl ester-based antifungal compounds such as benzyl acetate, benzyl propionate, benzyl butanoate, 4-methylbenzyl acetate, 4-methoxybenzyl propionate, etc., citronellyl acetate, geranyl acetate, nonyl acetate, allyl isothiocyanate, and the like. Among these, it is preferable to contain one or more selected from the group consisting of allyl ester-based antifungal compounds such as allyl hexanoate, allyl heptanoate, allyl octanoate, etc., and benzyl ester-based antifungal compounds such as benzyl acetate, benzyl propionate, benzyl butanoate, 4-methylbenzyl acetate, 4-methoxybenzyl propionate, etc., and it is more preferable to contain one or more selected from the group consisting of allyl hexanoate, allyl heptanoate, allyl octanoate or benzyl acetate. In addition, when the ester-based antifungal compounds in the present invention have optical isomers based on asymmetric carbon or geometric isomers based on double bonds, each of them or any mixture thereof may be used.

[0016] The alcohol-based antifungal compounds contained in the room-temperature volatile antifungal component of the present invention include, but are not limited to, dihydromyrcenol, linalool, ethyl linalool, dihydrolinalool, nerol, geraniol, citronellol, myrcenol, lavandulol, oct-1-en-3-ol, 1-decanol, nonyl alcohol, 1-nonanol, 2-nonanol, 1-octanol, 2-octanol, 1-heptanol, phenethyl alcohol, phenol, salicyl alcohol, etc. Among these, it is preferable to contain one or more selected from the group consisting of unsaturated aliphatic tertiary alcohol-based antifungal compounds such as dihydromyrcenol, linalool, ethyl linalool, dihydrolinalool, myrcenol, etc., and it is more preferable to contain one or more selected from the group consisting of dihydromyrcenol and linalool. In addition, when there are optical isomers based on asymmetric carbon or geometric isomers based on double bonds in the alcohol-based antifungal compounds in the present invention, each of them or any mixture may be used.

[0017] The menthane-based antifungal compounds contained in the room-temperature volatile antifungal component of the present invention include, but are not limited to, compounds in which at least one hydrogen atom bonded to a carbon atom of p-menthane represented by the following chemical formula (I) is substituted with a substituent, compounds in which at least one single bond of p-menthane is replaced with a double bond, etc. Examples of the substituent include, but are not limited to, a hydroxyl group, an etheric oxygen atom (-O-), an amino group, an alkyl group, a carboxyl group, an acyl group, an ester group, an amide group, etc.

[0018]

Chemical formula

[0019] Examples of such menthane-based antifungal compounds include, but are not limited to, aromatic menthane-based antifungal compounds such as thymol and carvacrol; limonene such as d-limonene; terpineol such as α-terpineol; carveol, perillaldehyde, menthone, d-carbone, l-carbone; unsaturated aliphatic menthane-based antifungal compounds such as pinocarbone, pinocarbeol, piperitone, piperitenone, pulegone, and dihydrocarbone; and saturated aliphatic menthane-based antifungal compounds such as p-menthane-3,8-diol, menthol, menthyl acetate, and p-menthane. It is preferable that these menthane-based antifungal compounds contain one or more selected from the group consisting of limonene such as d-limonene, terpineol such as α-terpineol, p-menthane-3,8-diol, menthol, menthyl acetate, menthone, thymol, carbone such as d-carbone and l-carbone, pinocarbone, pinocarbeol, piperitone, piperitenone, pulegone, and dihydrocarbone. Furthermore, if the menthane-based antifungal compounds in this invention have optical isomers based on chiral carbons or geometric isomers based on double bonds, each of these or any mixture thereof may be used. Also, in this invention, menthane-based antifungal compounds having a hydroxyl group are treated as menthane-based antifungal compounds, not alcohol-based antifungal compounds.

[0020] As a room-temperature volatile antifungal component, it is preferable to use a mixture of one or more ester-based antifungal compounds, one or more alcohol-based antifungal compounds, and one or more menthane-based antifungal compounds, as this can exhibit a more pronounced antifungal effect. In this case, the mixing ratio of each component is preferably 1:12 to 14:1 for (weight of ester-based antifungal compound):1, more preferably 1:7 to 8:1, and even more preferably 1:4 to 5:1. For (weight of alcohol-based antifungal compound):(weight of menthane-based antifungal compound), it is preferably 1:8 to 12:1, more preferably 1:5 to 7:1, and even more preferably 1:3 to 4:1. For (weight of menthane-based antifungal compound):(weight of ester-based antifungal compound), it is preferably 1:14 to 8:1, more preferably 1:8 to 5:1, and even more preferably 1:5 to 3:1.

[0021] The method for incorporating the room-temperature volatile antifungal component into the first sheet-like substrate is not particularly limited, as long as the volatility of the room-temperature volatile antifungal component is not impaired. For example, the room-temperature volatile antifungal component can be incorporated into the substrate by known methods such as printing using various plates, impregnation, dipping, spray coating, dropping, or kneading into the substrate, either as is or in any combination with various resins, binders, solvents, etc.

[0022] Furthermore, within the scope that does not deviate from the objective and effect of the present invention, which is to provide both antifungal and deodorizing effects, various additives may be optionally added to the first sheet-like substrate. Examples of such additives include volatilization regulators, stabilizers, antioxidants, discoloration inhibitors, ultraviolet inhibitors, and fragrances such as harmonized fragrances.

[0023] The second sheet-like substrate contains a deodorizing agent, preferably formed from a fibrous material containing a deodorizing agent, and the density of the second sheet-like substrate is 0.21 mg / mm³. 3 ~0.50 mg / mm³ 3 Therefore, 0.28 mg / mm³ 3~0.45 mg / mm³ 3 It is preferable that this be the case.

[0024] The aforementioned deodorizing agent contains one or more selected from the group consisting of activated carbon, plum charcoal, silica gel, activated alumina, zeolite, and ceramic, and therefore does not have adverse effects such as staining or discoloration of the trash can when used, and also has excellent deodorizing effect. Among these, it is preferable that the agent contains one or more selected from the group consisting of activated carbon, plum charcoal, silica gel, and zeolite.

[0025] The aforementioned deodorizing agent may contain metal ions such as copper ions, silver ions, calcium ions, lithium ions, potassium ions, sodium ions, and magnesium ions, and it is preferable that it contains copper ions or silver ions from the viewpoint of having excellent deodorizing effect.

[0026] In the present invention, examples of the base material used for the second sheet base material include paper, woven fabric, nonwoven fabric, resin film, and laminates thereof. Of these, those formed from fibrous material are preferred.

[0027] In the present invention, the method for incorporating the deodorizing agent into the second sheet substrate is, for example, to retain the deodorizing agent on the substrate by known methods such as printing using various plates, impregnation, dipping, spray coating, dropping, or kneading into the substrate, either as is or in any combination with various resins, binders, solvents, etc. Furthermore, a method for forming sheets such as paper or nonwoven fabric using a raw material containing the deodorizing agent can be employed by known papermaking methods or known manufacturing methods such as spunlacing, needle punching, or airlaid.

[0028] In the present invention, it is preferable that the second sheet-like substrate is formed from a fibrous material containing the deodorizing agent.

[0029] In the present invention, the fibrous material can be, for example, natural cellulose (pulp, kenaf, cotton, hemp), regenerated cellulose (cellophane, cellulose beads, rayon, cellulose sponge, etc.), cotton, bacterial cellulose, and cellulose derivatives such as ethylcellulose, hydroxyethylcellulose, hydroxypropylcellulose, methylcellulose, ethylhydroxyethylcellulose, and carboxymethylcellulose, which are chemically modified cellulose. Furthermore, natural or artificial hydrophilic polymers such as silk, wool, hemp, polyvinyl alcohol, cross-linked polyvinyl alcohol, chitin, chitosan, ethylene vinyl acetate copolymer, and polyvinyl formal, superabsorbent polymer gels such as polyacrylamide, collagen, and wood wool, and the fiber diameter is preferably 10 to 150 μm, more preferably 30 to 100 μm, and even more preferably 40 to 90 μm.

[0030] In the present invention, the method for incorporating the deodorizing agent into the fibrous material is not particularly limited, as long as various solvents, binders, adhesives, and spreading agents are not used, or their use is minimized. For example, a method can be employed in which zeolite particles or the like are dispersed in the fibrous material by impregnation, immersion, kneading, etc.

[0031] This method allows for the creation of a sheet-like substrate that holds the deodorizing agent without using various solvents, binders, adhesives, or spreading agents, or by minimizing their use. Therefore, in the sheet-like substrate, there is no problem of the deodorizing agent being inhibited by the blockage of its pores by various solvents, binders, adhesives, or spreading agents.

[0032] The method for forming the fibrous material into a sheet to obtain a second sheet-like substrate is not particularly limited, but for example, a method for forming sheets of paper, nonwoven fabric, etc. using the fibrous material by known papermaking methods, spunlacing, needle punching, airlaiding, etc. can be employed.

[0033] Commercially available products can also be used as the second sheet-like substrate 3, which is formed from a fibrous material containing the aforementioned deodorizing agent. Examples of such commercially available products include Cellgaia® (manufactured by Rengo Co., Ltd.), plum charcoal crepe paper (product name Sumideco Paper, manufactured by Sanyo Paper Co., Ltd.), activated carbon sheet (manufactured by Oji Kinocross Co., Ltd.), zeolite sheet (manufactured by Oji Kinocross Co., Ltd.), silica gel sheet (manufactured by Oji Kinocross Co., Ltd.), FS-ZEO® (manufactured by Toppan Printing Co., Ltd.), and functional powder-supported nonwoven fabric (manufactured by Nippon Vilene Co., Ltd.).

[0034] In the present invention, when manufacturing the anti-mold, deodorizing agent, the first sheet substrate and the second sheet substrate may be laminated. They may be stored in the same storage compartment of the same container, or they may be stored in different storage compartments of the same container. From the viewpoint of breathability, it is preferable to store the first sheet substrate and the second sheet substrate in different storage compartments of the same container. Examples of the container include plastic molded containers, paper containers, bag-shaped objects, etc.

[0035] The mold-preventing, deodorizing, and odor-removing agent of the present invention is suitable for use in waste storage spaces such as trash cans and diaper disposal bins. Specific uses include attaching it to the inner wall of the waste storage space, or placing it inside the waste storage space. For ease of use, it is preferable to attach it to the inner wall of the waste storage space. [Examples]

[0036] The mold-preventing, deodorizing, and odor-removing agent of the present invention will be described in more detail below with reference to specific examples and test cases. However, the present invention is not limited in any way by these examples and test cases.

[0037] [Example 1] As an anti-mold component, a drug containing a mixture of allyl heptanoate (100 mg), benzyl acetate (25 mg), dihydromyrcenol (100 mg), linalool (40 mg), d-limonene (100 mg), and terpineol (100 mg) was prepared. This drug was impregnated into a carrier made of natural cellulose pulp non-woven fabric to obtain a first sheet-like substrate with anti-mold properties (length 2.5 cm × width 5 cm, area 12.5 cm 2 ). A second sheet-like substrate with deodorant properties (length 6 cm × width  6 cm, area 36 cm 2 , density 0.213 mg / mm 3 ) containing natural cellulose pulp and zeolite was prepared. The prepared first sheet-like substrate and second sheet-like substrate were respectively installed in the carrier holding part of the main body. Then, a cover part with an opening of 20 cm 2 serving as a malodor component adsorption part and an opening of 3 cm 2 serving as an anti-mold component release part was attached to the main body to prepare an anti-mold, deodorant, and odor-removing agent, which was taken as Example 1.

[0038] [Examples 2 to 5, Comparative Examples 1 to 2] In Example 1, the second sheet-like substrate was replaced with the second sheet substrate prepared with the respective constituent components and density described in Table 1, and the anti-mold, deodorant, and odor-removing agents of Examples 2 to 5 and Comparative Examples 1 to 2 were prepared in the same manner as in Example 1.

[0039]

Table 1

[0040] 〔Test Example 1〕Deodorant and odor-removing effect of ammonia To confirm the deodorizing effect of the antifungal and deodorizing agents, the following deodorizing test 1 was conducted. Seven plastic cylinders (20 cm inner diameter, 20 cm height) were prepared, and 50 μL of ammonia water was added to each. Glass plates with the antifungal and deodorizing agents of Examples 1-5 and Comparative Examples 1-2 were attached to the top of each cylinder, and the lids were closed. The cylinders with the glass plates on and lids left closed after adding 50 μL of ammonia water were used as the untreated control group. After these plastic cylinders were left to stand at room temperature (25°C) for 2 hours, the ammonia odor inside the cylinders was measured using a gas detection tube (manufactured by Gastec Co., Ltd.). In addition, the ammonia odor concentration in the cups of the untreated group was measured using a gas detection tube after 2 hours, under the same conditions as the treated group except that the agent-impregnated material was not suspended. The deodorization rate (%) was calculated based on the following formula (I) and evaluated in four stages: A; 80% or more and less than 100%, B; 60% or more and less than 80%, C; 40% or more and less than 60%, and D; less than 40%. The test results are shown in Table 2.

[0041] (Math 1) Deodorization rate (%) = [1 - Odor concentration in treated area / Odor concentration in untreated area] × 100 (I)

[0042] [Test Example 2] Deodorizing effect of trimethylamine To confirm the deodorizing effect of the antifungal deodorizing agent, the following deodorizing test 2 was conducted. Seven plastic cylinders (inner diameter 20 cm, height 20 cm) were prepared, and 50 μL of trimethylamine was added to each. Glass plates with the antifungal deodorizing agents of Examples 1-5 and Comparative Examples 1-2 were attached to the top of each cylinder, and the lids were closed. The cylinders with the glass plates and lids left on after adding 50 μL of trimethylamine were used as the untreated control group. After these plastic cylinders were left to stand at room temperature (25°C) for 2 hours, the odor of trimethylamine inside the cylinders was measured using a gas detection tube (manufactured by Gastec Co., Ltd.). In addition, the odor concentration of trimethylamine in the cups after standing for 2 hours was also measured using a gas detection tube, under the same conditions as the treated groups except that the agent-impregnated material was not suspended. The deodorization rate (%) was calculated based on the measurement results using the formula (I) described above, and evaluated on a four-point scale: A; 80% or more and less than 100%, B; 60% or more and less than 80%, C; 40% or more and less than 60%, and D; less than 40%. The test results are shown in Table 2.

[0043] [Test Example 3] Deodorizing effect of methyl mercaptan To confirm the deodorizing effect of the antifungal and deodorizing agents, the following deodorizing test 3 was conducted. Seven plastic cylinders (inner diameter 20 cm, height 20 cm) were prepared, and 200 μL of methyl mercaptan was added to each. Glass plates with the antifungal and deodorizing agents of Examples 1-5 and Comparative Examples 1-2 were attached to the top of each cylinder, and the lids were closed. The cylinders with the glass plates on and lids left closed after adding 200 μL of methyl mercaptan were used as the untreated control group. After these plastic cylinders were left to stand at room temperature (25°C) for 2 hours, the odor of the methyl mercaptan inside the cylinders was measured using a gas detection tube (manufactured by Gastec Co., Ltd.). In addition, the odor concentration of methyl mercaptan in the cups after standing for 2 hours was also measured using a gas detection tube, under the same conditions as the treated groups except that the agent-impregnated material was not suspended. The deodorization rate (%) was calculated based on the measurement results using the formula (I) described above, and evaluated on a four-point scale: A; 80% or more and less than 100%, B; 60% or more and less than 80%, C; 40% or more and less than 60%, and D; less than 40%. The test results are shown in Table 2.

[0044] [Table 2]

[0045] The results of Test Examples 1-3 showed that the density of the second sheet-like substrate was 0.21 mg / mm³. 3 ~0.50 mg / mm³ 3 The mold-preventing, deodorizing, and odor-removing agents of Examples 1 to 5 showed excellent deodorizing effects against ammonia, trimethylamine, and methyl mercaptan. In particular, the density of the second sheet-like substrate was 0.28 mg / mm³. 3 ~0.45 mg / mm³ 3The mold-preventing, deodorizing, and odor-removing agents of Examples 3 to 5 showed particularly excellent deodorizing effects against ammonia, trimethylamine, and methyl mercaptan.

[0046] On the other hand, the density of the second sheet-like substrate is 0.21 mg / mm³ 3 Comparative Example 1 and the second sheet-like substrate have densities of less than 0.50 mg / mm³. 3 Comparative Example 2, which exceeded the performance of the previous example, showed insufficient deodorizing effect against ammonia, trimethylamine, and methyl mercaptan.

[0047] [Test Example 4] Test 1 on suppressing the generation of putrefied odor from food-derived garbage Finely chopped food items (12g of firefly squid, 34cm of width, and 58cm of height) and 10g of water were placed in a trash can with a lid (45cm deep, 34cm wide, and 58cm high). The antifungal and deodorizing agent of Example 4 of the present invention was attached to the inside of the lid, and then the lid was closed. After storage at room temperature (25°C) for 7 days, the odor concentrations of ammonia, trimethylamine, and methyl mercaptan in the flask were measured using a gas detection tube (manufactured by Gastec Co., Ltd.). In addition, in the untreated group, under the same conditions as the treated group except that the anti-mold and deodorizing product was not attached to the inside of the lid, the odor concentrations of ammonia, methyl mercaptan, and trimethylamine in the flask after 7 days of storage at room temperature (25°C) were measured using gas detection tubes (manufactured by Gastec Co., Ltd.). The percentage of putrid odor suppression was calculated based on the measurement results using the formula (I) described above. (The test results are shown in Table 3.)

[0048] [Table 3]

[0049] The test results confirmed that the mold-preventing, deodorizing agent of the present invention exhibits an effect in suppressing the generation of putrid odors. Furthermore, when comparing the appearance of each food item after 7 days of storage, mold had grown on the untreated food item, whereas no mold had grown on the food item treated with the mold-preventing, deodorizing agent of the present invention (treated food item). This confirmed that the mold-preventing, deodorizing agent of the present invention also has excellent mold-preventing effects. [Industrial applicability]

[0050] The mold-preventing, deodorizing, and odor-removing agent obtained by the present invention possesses both excellent mold-preventing and deodorizing effects, and is also easy to use, making it extremely useful.

Claims

1. A first sheet-like substrate containing a room-temperature volatile antifungal component, and It consists only of a second sheet-like substrate containing a deodorizing agent, The density of the second sheet-like substrate is 0.21 mg / mm³ ３ ~0.50mg / mm ３ And, An antifungal, deodorizing agent (excluding antifungal, deodorizing agents containing insecticidal components) is characterized in that the first sheet-like substrate and the second sheet-like substrate are respectively housed in different storage compartments of the same container, and a cover portion having openings corresponding to the first sheet-like substrate and the second sheet-like substrate is attached to the container.

2. The antifungal, deodorizing, and deodorizing agent according to claim 1, characterized in that the second sheet-like substrate is formed from a fibrous material.

3. The mold-preventing, deodorizing, and deodorizing agent according to claim 2, characterized in that the fibrous material is one or more selected from the group consisting of natural cellulose, regenerated cellulose, bacterial cellulose, chemically modified cellulose, silk, wool, polyacrylamide, hemp, collagen, and wood wool.

4. The antifungal, deodorizing, and deodorizing agent according to claim 2 or 3, characterized in that the fibrous material has a fiber diameter of 10 μm to 150 μm.

5. The antifungal, deodorizing agent according to any one of claims 1 to 4, characterized in that the aforementioned room-temperature volatile antifungal component contains a room-temperature volatile antifungal compound with a boiling point of 290°C or lower.

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