Deodorizing device

Abstract

To provide a deodorizing device excellent in sustainability of deodorizing effect.SOLUTION: A deodorizing device comprises: a deodorizing liquid housing section that houses a deodorizing liquid; and a deodorizing liquid absorption section that absorbs the deodorizing liquid supplied from the deodorizing liquid housing section and deodorizes a space, the deodorizing liquid comprises (A) a deodorizing component, (B) at least one member selected from the group consisting of polyhydric alcohol, 3-methoxy-3-methyl butanol, and polyoxyethylene alkyl ether; and (C) water.SELECTED DRAWING: None

Description

[Technical field]

[0001] The present invention relates to a deodorizing device having excellent durability of deodorizing effect. [Background technology]

[0002] In recent years, along with the increasing demand for comfortable living, the need for odor control measures to make living spaces comfortable is also increasing. Conventionally, as odor control measures in daily life, methods of using spray-type, aerosol-type, stationary-type, etc. deodorants to spray or volatilize into the space are known. In such deodorants, organic deodorant components such as dihydrazide compounds and amine compounds, and plant extracts such as polyphenols are used as deodorant components.

[0003] Conventionally, various deodorant liquids have been developed with the aim of improving deodorant function. For example, Patent Document 1 reports that a deodorant containing a hydrazide compound, adenine sulfate, and cationic amino-modified silicone is not only excellent at removing aldehyde-based and ammonia-based malodorous components not only at room temperature but also at high temperatures, but also has little re-release of the removed malodorous components. In addition, Patent Document 2 reports that a deodorant containing a hydrazide compound, hydroxylamine sulfate, smectite, and water can have an excellent deodorant effect against both aldehyde and ammonia. However, Patent Documents 1 and 2 do not consider the improvement of the duration of the deodorant effect by the hydrazide compound. [Prior art documents] [Patent documents]

[0004] [Patent Document 1] JP 2012-19872 A [Patent Document 2] JP 2010-5093 A Summary of the Invention [Problem to be solved by the invention]

[0005] As a measure against odors, it is also effective to use a deodorizing liquid in a space where deodorization is required (such as an indoor space or the inside of a car) to remove or reduce odors in the space. When using a deodorizing liquid in a space, it is important that the deodorizing effect of the deodorizing ingredients lasts.

[0006] Under these circumstances, the present inventors have investigated the durability of deodorizing liquids containing various deodorizing ingredients and have found that, when conventional deodorizing liquids are used by leaving them in a space, they provide excellent deodorizing effects while the deodorizing liquid remains in the space, but as time passes and the liquid dries out, the deodorizing effect disappears and the deodorizing effect cannot be sustained.

[0007] SUMMARY OF THE PRESENT EMBODIMENTS Accordingly, an object of the present invention is to provide a deodorizing device that has excellent durability of the deodorizing effect. [Means for solving the problem]

[0008] The present inventors conducted extensive research to solve the above problems, and discovered that a deodorizing liquid containing a deodorizing component and water, as well as a polyhydric alcohol, 3-methoxy-3-methylbutanol, and / or polyoxyethylene alkyl ether, dramatically improves the durability of the deodorizing effect of the deodorizing component, and that when used by impregnating an absorbent member, the deodorizing effect can be maintained even after the volatile components contained in the deodorizing liquid evaporate and become dry. They also discovered that a deodorizing effect with excellent durability can be achieved by using a device configured to exert a deodorizing effect while the deodorizing liquid is absorbed into a liquid-absorbent member. The present invention was completed through further research based on these findings.

[0009] That is, the present invention provides the following aspects. Item 1. A deodorant liquid storage section that stores a deodorant liquid; a deodorizing liquid suction section that absorbs the deodorizing liquid supplied from the deodorizing liquid storage section and deodorizes the space, The deodorizing liquid contains (A) a deodorizing component, (B) at least one selected from the group consisting of a polyhydric alcohol, 3-methoxy-3-methylbutanol, and a polyoxyethylene alkyl ether, and (C) water. Deodorizing device. Item 2. Further, a deodorant liquid storage section is provided for storing the deodorant liquid supplied from the deodorant liquid storage section, Item 2. The deodorizing device according to item 1, wherein the deodorizing liquid suction section is configured to suck up the deodorizing liquid from the deodorizing liquid storage section and absorb the deodorizing liquid. Effect of the Invention

[0010] According to the deodorizing device of the present invention, in the deodorizing liquid suction section that deodorizes the space, the deodorizing effect can be maintained even if the volatile components contained in the deodorizing liquid evaporate and become dry, thereby improving the durability of the deodorizing effect. [Brief description of the drawings]

[0011] [Figure 1] 1 is a schematic diagram showing a cross-sectional view of one embodiment of a deodorization device of the present invention. [Diagram 2] 1 is a schematic diagram showing a cross-sectional view of one embodiment of a deodorization device of the present invention. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0012] The deodorizing device of the present invention has a deodorizing liquid storage section that stores a deodorizing liquid, and a deodorizing liquid suction section that absorbs the deodorizing liquid supplied from the deodorizing liquid storage section and deodorizes a space, and is characterized in that the deodorizing liquid contains (A) a deodorizing component, (B) at least one selected from the group consisting of polyhydric alcohol, 3-methoxy-3-methylbutanol, and polyoxyethylene alkyl ether, and (C) water. The deodorizing device of the present invention will be described in detail below.

[0013] [Deodorant liquid] The deodorizing device of the present invention uses a deodorizing liquid containing a deodorizing component (sometimes referred to as component (A)), at least one selected from the group consisting of polyhydric alcohol, 3-methoxy-3-methylbutanol, and polyoxyethylene alkyl ether (sometimes referred to as component (B)), and water (sometimes referred to as component (C)). By using a deodorizing liquid of such a specific composition, it becomes possible to maintain the deodorizing effect in the deodorizing liquid suction section that deodorizes the space, even when the volatile components (water, etc.) contained in the deodorizing liquid volatilize and become dry.

[0014] (A) Deodorizing ingredient The deodorant liquid used in the present invention contains a deodorant component. The deodorant component used in the present invention may be appropriately selected depending on the type of malodorous substance, and examples thereof include hydrazide compounds, amine compounds, polyphenols, betaine compounds, acids, bases, metal ions, etc. In addition, preferred examples of the deodorant component include deodorant components that exhibit a deodorant effect by adsorbing or reacting with aldehydes (formaldehyde, acetaldehyde, isovaleraldehyde, etc.). Specific examples of deodorant components that exhibit a deodorant effect against aldehydes include hydrazide compounds, amine compounds, polyphenols, betaine compounds, etc.

[0015] Among the deodorant components, the hydrazide compound is a compound having one or more hydrazide groups (-NH-NH 2 ) which has the effect of adsorbing and deodorizing aldehydes (formaldehyde, acetaldehyde, isovaleraldehyde, etc.) that cause bad odors.

[0016] The hydrazide compound used in the present invention may be any of a monohydrazide compound having one hydrazide group per molecule, a dihydrazide compound having two hydrazide groups per molecule, or a polyhydrazide compound having three or more hydrazide groups per molecule.

[0017] Specific examples of monohydrazide compounds include acetohydrazide, formhydrazide, carbohydrazide, lauric acid hydrazide, salicylic acid hydrazide, propionic acid hydrazide, p-hydroxybenzoic acid hydrazide, naphthoic acid hydrazide, and 3-hydroxy-2-naphthoic acid hydrazide.

[0018] Specific examples of the dihydrazide compound include succinic acid dihydrazide, adipic acid dihydrazide, oxalic acid dihydrazide, malonic acid dihydrazide, glutaric acid dihydrazide, pimelic acid dihydrazide, suberic acid dihydrazide, azelaic acid dihydrazide, sebacic acid dihydrazide, dodecanedioic acid dihydrazide, terephthalic acid dihydrazide, isophthalic acid dihydrazide, tartaric acid dihydrazide, malic acid dihydrazide, iminodiacetic acid dihydrazide, itaconic acid dihydrazide, dodecane dihydrazide, hexadecanedihydrazide, naphthoedihydrazide, benzene dihydrazide, pyridine dihydrazide, cyclohexane dihydrazide, and pyromellitic acid dihydrazide.

[0019] Specific examples of polyhydrazide compounds having three or more hydrazide groups in one molecule include citric acid trihydrazide, trinitroacetic acid trihydrazide, nitriloacetic acid trihydrazide, cyclohexanetricarboxylic acid trihydrazide, ethylenediaminetetraacetic acid tetrahydrazide, naphthoic acid tetrahydrazide, polyacrylic acid hydrazide, and the like.

[0020] These hydrazide compounds may be used alone or in combination of two or more.

[0021] Among the deodorant components, the amine compound is a compound having at least one amino group in one molecule. The type of the amine compound used in the present invention is not particularly limited as long as it has a deodorant effect, and examples thereof include alkanolamines and polyamines.

[0022] Specific examples of alkanolamines include monoalkanolamines such as monoethanolamine, triethanolamine, monomethanolamine, propanolamine, isopropanolamine, aminomethylpropanol, N-methylethanolamine, N-methylisopropanolamine, N-ethylethanolamine, N-methylpropanolamine, and N-ethylbutanolamine; and dialkanolamines such as diethanolamine, dipropanolamine, diisopropanolamine, dibutanolamine, and 2-amino-2-methyl-1,3-propanediol.

[0023] Specific examples of polyamines include ethylenediamine, diaminopropane, and hexamethylenediamine.

[0024] These amine compounds may be used alone or in combination of two or more.

[0025] Among the deodorant components, polyphenols are compounds having a phenolic hydroxyl group in one molecule. The type of polyphenol used in the present invention is not particularly limited, as long as it has a deodorant effect, and examples thereof include flavanols (catechins), flavones, anthocyanidins, leucoanthocyanidins, and proanthocyanidins. In addition, polyphenols are contained in plants such as cypress, grape seeds, pine, Japanese cypress, cedar, tea, camellia, camellia sasanqua, persimmon, bamboo, bamboo grass, sage, thyme, rosemary, eucalyptus, lavender, parsley, apple fruit, mushrooms, and algae, so that in the present invention, these plant extracts can also be used as deodorant components. These polyphenols may be used alone or in combination of two or more.

[0026] Among deodorant components, betaine compounds are compounds that have positive and negative charges at non-adjacent positions in the same molecule, and the positively charged atom is not bound to dissociable hydrogen, and the molecule as a whole does not have a charge. The type of betaine compound used in the present invention is not particularly limited, as long as it has a deodorant effect, and examples thereof include lauryl dimethylamino acetate betaine. These betaine compounds may be used alone or in combination of two or more.

[0027] Among the deodorizing components, the acid is not particularly limited as long as it has a deodorizing effect, and examples thereof include citric acid, etc. The acid may be used alone or in combination of two or more kinds.

[0028] Among the deodorizing components, the base is not particularly limited as long as it has a deodorizing effect, and examples thereof include bicarbonate, etc. The base may be used alone or in combination of two or more kinds.

[0029] Among the deodorant components, the metal ions are not particularly limited as long as they have a deodorant effect, and examples thereof include silver ions, magnesium ions, zinc ions, titanium ions, copper ions, etc. These metal ions may be used alone or in combination of two or more.

[0030] Among these deodorant components, from the viewpoint of further improving the durability of the deodorant effect, preferred are hydrazide compounds and amino compounds; more preferred are alkanolamines, polyamines, monohydrazide compounds and dihydrazide compounds; and even more preferred are acetohydrazide, succinic acid dihydrazide, adipic acid dihydrazide, carbohydrazide, propanolamine, aminomethylpropanol, 2-amino-2-methyl-1,3-propanediol and ethylenediamine. In particular, acetohydrazide is particularly suitable for use because the component (B) described below not only improves the durability of the deodorant effect but also enhances the deodorant effect itself (deodorant effect at the beginning of use).

[0031] The content of component (A) in the deodorizing liquid used in the present invention may be appropriately set depending on the type of deodorizing component used, the target to be deodorized, the level of deodorizing effect to be imparted, and the like, and may be, for example, 0.1 to 20% by weight, preferably 0.5 to 10% by weight, and more preferably 1 to 5% by weight.

[0032] (B) polyhydric alcohol, 3-methoxy-3-methylbutanol, and / or polyoxyethylene alkyl ether The deodorant liquid used in the present invention contains polyhydric alcohol, 3-methoxy-3-methylbutanol, and / or polyoxyethylene alkyl ether as component (B). By containing component (B) in this way, it is possible to improve the durability of the deodorant effect of the deodorant component.

[0033] Among the (B) components, examples of the polyhydric alcohol include dihydric to tetrahydric alcohols. Specific examples of the polyhydric alcohol include dihydric alcohols such as ethylene glycol, propylene glycol, triethylene glycol, diethylene glycol, triethylene glycol, and isoprene glycol; trihydric alcohols such as glycerin and butanetriol (1,2,3-butanetriol and 1,2,4-butanetriol); and tetrahydric alcohols such as erythritol and pentaerythritol. These polyhydric alcohols may be used alone or in combination of two or more.

[0034] Among the components (B), polyoxyethylene alkyl ether is a compound in which a polyoxyethylene chain is ether-bonded to an alkyl group. The average number of moles of ethylene oxide added to the polyoxyethylene alkyl ether chain is not particularly limited, but may be, for example, 2 to 30, preferably 5 to 20, and more preferably 8 to 12. The alkyl group constituting the polyoxyethylene alkyl ether may be either linear or branched. The number of carbon atoms in the alkyl group constituting the polyoxyethylene alkyl ether is not particularly limited, but may be, for example, 8 to 22, preferably 8 to 14, and more preferably 8 to 10. Specific examples of polyoxyethylene alkyl ether include POE octyl ether, POE isooctyl ether, POE decyl ether, POE isodecyl ether, POE lauryl ether, POE myristyl ether, POE cetyl ether, POE isocetyl ether, POE stearyl ether, POE isostearyl ether, POE arachidyl ether, and POE behenyl ether. Here, "POE" stands for polyoxyethylene, and these polyoxyethylene alkyl ethers may be used alone or in combination of two or more.

[0035] In the deodorant liquid used in the present invention, as component (B), one may be selected from polyhydric alcohols, 3-methoxy-3-methylbutanol, and polyoxyethylene alkyl ethers and used alone, or two or more of these may be used in combination.

[0036] Of these (B) components, from the viewpoint of further improving the durability of the deodorizing effect, preferred examples include ethylene glycol, propylene glycol, triethylene glycol, glycerin, butanetriol, erythritol, pentaerythritol, 3-methoxy-3-methylbutanol, and polyoxyethylene alkyl ether.

[0037] In particular, when acetohydrazide is used as component (A), from the viewpoint of further improving the durability of the deodorizing effect, preferred examples of component (B) include ethylene glycol, propylene glycol, triethylene glycol, glycerin, 3-methoxy-3-methylbutanol, and polyoxyethylene alkyl ether; and more preferred examples include ethylene glycol, triethylene glycol, glycerin, 3-methoxy-3-methylbutanol, and polyoxyethylene alkyl ether. In addition, when succinic acid dihydrazide is used as the (A) component, from the viewpoint of further improving the durability of the deodorizing effect, the (B) component is preferably ethylene glycol, propylene glycol, triethylene glycol, glycerin, butanetriol, erythritol, pentaerythritol, 3-methoxy-3-methylbutanol, and polyoxyethylene alkyl ether; more preferably ethylene glycol, propylene glycol, triethylene glycol, glycerin, butanetriol, erythritol, and pentaerythritol; particularly preferably glycerin, butanetriol, erythritol, and pentaerythritol. In addition, when adipic acid dihydrazide and / or carbohydrazide are used as the (A) component, from the viewpoint of further improving the durability of the deodorizing effect, the (B) component is preferably glycerin. Furthermore, when propanolamine, aminomethylpropanol, and / or 2-amino-2-methyl-1,3-propanediol is used as component (A), from the viewpoint of further improving the durability of the deodorizing effect, preferred examples of component (B) include glycerin.

[0038] The content of the (B) component in the deodorant liquid used in the present invention may be appropriately set depending on the type of (B) component used, the target to be deodorized, etc., and may be, for example, 0.1 to 20% by weight, preferably 0.5 to 10% by weight, and more preferably 1 to 10% by weight.

[0039] In addition, in the deodorant liquid used in the present invention, the ratio of the (A) component to the (B) component is, for example, 10 to 1000 parts by weight, preferably 50 to 500 parts by weight, and more preferably 100 to 400 parts by weight of the (B) component per 100 parts by weight of the (A) component.

[0040] ·(C)Water The deodorant liquid used in the present invention contains water as a base. The content of water in the deodorant liquid may be the balance of the components (A) and (B) and other additives added as necessary, and may be, for example, 50% by weight or more, preferably 60 to 99% by weight, and more preferably 70 to 97% by weight.

[0041] · Monohydric lower alcohol The deodorant liquid used in the present invention may contain a monohydric lower alcohol as necessary. Examples of the monohydric lower alcohol include monohydric alcohols having 2 to 5 carbon atoms, more specifically, ethanol, n-propanol, isopropanol, n-butanol, sec-butanol, tert-butanol, n-amyl alcohol, sec-amyl alcohol, isoamyl alcohol, tert-amyl alcohol, neopentyl alcohol, etc. These monohydric lower alcohols may be contained alone or in combination of two or more.

[0042] When the deodorant liquid used in the present invention contains a monohydric lower alcohol, the content thereof is not particularly limited, and may be, for example, 1 to 30% by weight.

[0043] Other Ingredients The deodorant liquid used in the present invention may contain other additives in addition to the above-mentioned components, as long as the additives do not impair the effects of the present invention. Examples of such additives include other solvents, pH adjusters, preservatives, antibacterial agents, germicides, antioxidants, ultraviolet absorbers, dyes, fragrances, surfactants, thickeners, etc.

[0044] [Device structure] In the deodorizing device of the present invention, a device is used as a device for exerting the deodorizing effect by the deodorizing liquid, the device having a deodorizing liquid storage section that stores the deodorizing liquid, and a deodorizing liquid suction section that absorbs the deodorizing liquid supplied from the deodorizing liquid storage section and deodorizes the space.

[0045] In the deodorizing device of the present invention, the means for supplying the deodorizing liquid from the deodorizing liquid storage section to the deodorizing liquid absorbing section is not particularly limited, and examples thereof include a method of impregnating a part of the deodorizing liquid absorbing section with the deodorizing liquid in the deodorizing liquid storage section; a method of adding the deodorizing liquid in the deodorizing liquid storage section to the deodorizing liquid absorbing section; a method of supplying the deodorizing liquid from the deodorizing liquid storage section to a separately provided deodorizing liquid storage section and impregnating a part of the deodorizing liquid absorbing section with the deodorizing liquid in the deodorizing liquid storage section, and the like.

[0046] Examples of the deodorizing device of the present invention include the deodorizing device shown in FIG. 1 (hereinafter, "first embodiment") and the deodorizing device shown in FIG. 2 (hereinafter, "second embodiment").

[0047] The deodorizing device of the first embodiment has a deodorizing liquid storage section 1 that stores the deodorizing liquid, a deodorizing liquid storage section 2 that stores the deodorizing liquid supplied from the deodorizing liquid storage section 1, and a deodorizing liquid suction section 3 that sucks up the deodorizing liquid from the deodorizing liquid storage section 2 to absorb the deodorizing liquid.

[0048] In the deodorizing device of the first embodiment, the deodorizing liquid storage section 1 is arranged with its opening facing downwards, and is configured so that the deodorizing liquid is supplied by gravity from the opening of the deodorizing liquid storage section 1 to the deodorizing liquid storage section 2. Also, in the deodorizing device of the first embodiment, the opening of the deodorizing liquid storage section 1 may be provided with a control valve for controlling the supply speed of the deodorizing liquid.

[0049] In the deodorizing device of the first embodiment, the deodorizing liquid storage section 2 is configured to store the deodorizing liquid supplied from the deodorizing liquid storage section 1.

[0050] In the deodorizing device of the first embodiment, the deodorizing liquid suction section 3 is arranged so that a portion of it is impregnated with the deodorizing liquid stored in the deodorizing liquid storage section, and is configured to suck up the deodorizing liquid and come into contact with the air in the space to be deodorized.

[0051] Moreover, the deodorizing device of the first embodiment may be provided with an air blowing section that blows air to the deodorizing liquid absorbing section 3. By providing such an air blowing section, the deodorizing liquid absorbed in the deodorizing liquid absorbing section 3 can be efficiently brought into contact with the air in the space, thereby enabling efficient deodorization.

[0052] The material of the deodorizing liquid storage section 1 in the deodorizing device of the first embodiment is not particularly limited, and may be made of any of plastic, glass, ceramic, etc., with plastic being preferred.

[0053] The material of the deodorizing liquid storage section 2 in the deodorizing device of the first embodiment is not particularly limited either, and may be made of any of plastic, glass, ceramic, etc., with plastic being preferred.

[0054] The material of the deodorant liquid absorbing part 3 in the deodorant device of the first embodiment is not particularly limited as long as it can absorb the deodorant liquid, and examples thereof include fibrous materials such as natural fibers such as cotton, vegetable fibers, and pulp, synthetic fibers such as rayon, polyester, polyethylene terephthalate, polypropylene, and polyethylene, and mixed fibers thereof; wood materials such as wood chips, rattan, bamboo, and sora; and resin sponge materials such as urethane foam. In addition, when the deodorant liquid absorbing part 3 is formed of a fibrous material, it is preferably a nonwoven fabric, but it may also be a woven fabric, knitted fabric, etc. In FIG. 1, the shape of the deodorant liquid absorbing part 3 is a sheet, but it may also be a rod-like, string-like, etc.

[0055] The deodorizing device of the second embodiment has a deodorizing liquid storage section 1 having an opening, and a deodorizing liquid suction section 3 that sucks up the deodorizing liquid in the storage section and holds the deodorizing liquid.

[0056] In the second embodiment of the deodorizing device, the deodorizing liquid suction section 3 is inserted through the opening of the storage section and sucks up the deodorizing liquid, while the deodorizing liquid suction section 3 exposed outside the deodorizing liquid storage section deodorizes the space.

[0057] The material of the deodorizing liquid storage section 1 in the deodorizing device of the second embodiment is not particularly limited, and may be made of any of plastic, glass, ceramic, etc., with plastic being preferred.

[0058] The material of the deodorant liquid absorbing part 3 in the deodorant device of the second embodiment is not particularly limited as long as it can absorb the deodorant liquid, and examples thereof include fibrous materials such as natural fibers such as cotton, vegetable fibers, and pulp, synthetic fibers such as rayon, polyester, polyethylene terephthalate, polypropylene, and polyethylene, and mixed fibers thereof; wood materials such as wood chips, rattan, bamboo, and sora; and resin sponge materials such as urethane foam. In addition, when the deodorant liquid absorbing part 3 is formed of a fibrous material, it is preferably a nonwoven fabric, but it may also be a woven fabric, knitted fabric, etc. In FIG. 2, the shape of the deodorant liquid absorbing part 3 is a sheet, but it may also be a rod-like, string-like, etc.

[0059] [How to use] The deodorizing device of the present invention is used for the purpose of removing or reducing odors present in, for example, indoor spaces, vehicle interiors, pet keeping areas, and the like.

[0060] The deodorizing device of the present invention is installed in a space where deodorization is required (such as an interior space or a vehicle interior space), and the deodorizing effect is achieved by volatilizing the volatile components (such as water) of the deodorizing liquid from the deodorizing liquid absorbing part. In addition, in the deodorizing device of the present invention, even if the deodorizing liquid runs out and the deodorizing liquid absorbing part becomes dry over time, the deodorizing effect is achieved by the deodorizing components remaining in the deodorizing liquid absorbing part, so that the device can be continuously used with the deodorizing liquid absorbing part in a dry state without replenishing the deodorizing liquid, replacing the deodorizing liquid absorbing part, or replacing the deodorizing device. The period during which the deodorizing liquid absorbing part can be continuously used from the point at which the deodorizing liquid absorbing part is dried varies depending on the composition of the deodorizing liquid, the space to be deodorized, and the like, but can be continuously used for about 120 days, preferably about 30 days, from the point at which the deodorizing liquid absorbing part is dried. EXAMPLES

[0061] The present invention will be described in more detail below with reference to examples and comparative examples, but the present invention is not limited to these.

[0062] Test Example Deodorant liquids having the compositions shown in Tables 1 to 4 were prepared, and the following tests were carried out to evaluate the durability of the deodorant effect.

[0063] First, 0.4 g of each deodorant liquid was dropped onto a test attachment white cloth (cotton Kanakin No. 3, 5 cm x 5 cm, Japan Standards Association), placed on a petri dish, and dried with a dryer for 20 minutes (without using hot air), and then left to stand at room temperature for 60 minutes. Next, the test attachment white cloth that had been treated as described above was sealed in a 10 L Tedlar bag together with 5 L of odorless air. Then, acetaldehyde was introduced into the Tedlar bag so that the concentration was about 100 ppm. The time when acetaldehyde was introduced was set to 0 minutes, and the acetaldehyde concentration in the Tedlar bag after 0 minutes and 60 minutes was measured using a gas detector tube (acetaldehyde 92M, Gastec Corporation), and the deodorant rate was calculated based on the following formula.

number

[0064] In this test, 0.4 g of the deodorant liquid was dropped onto a test cloth, which was then air-dried for 20 minutes and left to stand for 60 minutes before the deodorant rate was measured, so if the deodorant rate is high, it can be said that the deodorant effect is excellent in durability. When 0.4 g of the deodorant liquid was applied to a test cloth and the deodorant rate was measured under the same conditions as above without drying or leaving to stand, it was confirmed that the deodorant rate was 30 to 80% in all of the examples and comparative examples.

[0065] The results are shown in Tables 1 to 4. In the deodorant liquid containing only a hydrazide compound or an amide compound, the deodorant rate was 0% after drying for 20 minutes and leaving to stand for 60 minutes, and the deodorant effect of the hydrazide compound was not sustained (Comparative Examples 1 to 8). On the other hand, in the deodorant liquid containing a hydrazide compound or an amide compound together with a polyhydric alcohol, 3-methoxy-3-methylbutanol, or polyoxyethylene alkyl ether, the deodorant rate was high and the deodorant effect was excellent in durability even after drying for 20 minutes and leaving to stand for 60 minutes (Examples 1 to 28).

[0066] The deodorizing rate (initial deodorizing rate) measured without drying and standing using a deodorizing liquid containing acetohydrazide alone (Comparative Example 1) was 31%. In contrast, the deodorizing liquids (Examples 1 to 7) using acetohydrazide as the hydrazide compound and containing polyhydric alcohol, 3-methoxy-3-methylbutanol, or polyoxyethylene alkyl ether had a deodorizing rate of 31% or more after drying for 20 minutes and standing for 60 minutes. That is, it was confirmed that the deodorizing liquids of Examples 1 to 7 contain polyhydric alcohol, 3-methoxy-3-methylbutanol, or polyoxyethylene alkyl ether, which not only increases the persistence of the deodorizing effect of acetohydrazide, but also improves the deodorizing effect rate (initial deodorizing effect) of acetohydrazide itself.

[0067] On the other hand, the deodorizing rate (initial deodorizing rate) measured without drying or leaving to stand using a deodorizing liquid containing only succinic acid dihydrazide (Comparative Example 2) was 75%. In contrast, it was confirmed that when succinic acid dihydrazide was used as the hydrazide compound and a polyhydric alcohol, particularly a trihydric or higher polyhydric alcohol, was used as the (B) component (Examples 11 to 15), the duration of the deodorizing effect was increased. In particular, when butanetriol was used as the (B) component, In this case, it was confirmed that not only was the durability increased, but the deodorizing effect rate itself also improved.

[0068] [Table 1]

[0069] [Table 2]

[0070] [Table 3]

[0071] [Table 4] [Explanation of symbols]

[0072] 1 Deodorant liquid storage section 2 Deodorizing liquid storage section 3 Deodorant liquid absorbing part 4. Deodorant

Claims

1. a deodorizing liquid storage section that stores a deodorizing liquid; a deodorizing liquid absorbing section that absorbs the deodorizing liquid supplied from the deodorizing liquid storage section and deodorizes the space, the deodorizing liquid contains (A) a deodorizing component, (B) at least one selected from the group consisting of a polyhydric alcohol, 3-methoxy-3-methylbutanol, and a polyoxyethylene alkyl ether, and (C) water; The deodorizing device is used by volatilizing the deodorizing liquid from the deodorizing liquid absorbing part, and is continuously used even when the deodorizing liquid is used up and the deodorizing liquid absorbing part is dry.

2. Further, the deodorizing device has a deodorizing liquid storage section for storing the deodorizing liquid supplied from the deodorizing liquid storage section, The deodorizing device according to claim 1 , wherein the deodorizing liquid absorbing section is configured to suck up the deodorizing liquid from the deodorizing liquid storage section to absorb the deodorizing liquid.

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