JP2021006074A - Method for improving persistence of deodorant effect of deodorant - Google Patents

Abstract

To provide a method for improving the persistence of deodorant effect of a deodorant.SOLUTION: According to the method herein, a deodorant contains at least one selected from the group consisting of polyhydric alcohol, 3-methoxy-3-methylbutanol, and polyoxyethylene alkyl ether, as well as a deodorant component and water, so that the persistence of deodorant effect of the deodorant component can be improved dramatically.SELECTED DRAWING: None

Description

The present invention relates to a method for improving the sustainability of the deodorizing effect of a deodorant.

In recent years, as the demand for comfortable living has increased, the need for odor control to make living space comfortable has also increased. Conventionally, as a measure against odors in daily life, a method of spraying or volatilizing a space by using a deodorant such as a spray type, an aerosol type, or a stationary type is 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.

Conventionally, various deodorants have been developed with the aim of improving the deodorizing function. For example, in Patent Document 1, a deodorant containing a hydrazide compound, an adenine sulfate, and a cationic amino-modified silicone is excellent in removing aldehyde-based and ammonia-based malodorous components not only at room temperature but also in a high-temperature environment. Not only that, it has been reported that the re-release of the removed malodorous component is small. Further, Patent Document 2 reports that a deodorant containing hydroxylamine sulfate, smectite, and water together with a hydrazide compound can exert an excellent deodorizing effect on both aldehyde and ammonia. However, Patent Documents 1 and 2 do not study the improvement of the sustainability of the deodorizing effect by the hydrazide compound.

Japanese Unexamined Patent Publication No. 2012-1982 JP-A-2010-5093

In the conventional odor control, the deodorant is sprayed or applied to the space where deodorization is required, or the deodorant is sprayed or applied to the article to which the odor is attached. Is used to make direct contact with. It is important that the deodorant that is directly sprayed or applied to the odor has a high deodorizing effect itself, but it is also desirable that the deodorizing effect is sustained.

On the other hand, as a measure against odor, it is also effective to remove or alleviate the odor in the space by using the deodorant in a space where deodorization is required (indoor space, vehicle interior space, etc.). In addition, deodorant is attached to the structure (wall, floor, ceiling, door, etc.) of the space (indoor space, interior space, etc.) where deodorization is required and the products (curtain, sofa, etc.) in the space. A method of removing or alleviating the odor in the space by adding a deodorizing function to the structure or product is also effective. When removing or alleviating the odor in the space by such a method, it is important that the deodorant effect of the deodorant component is maintained because the deodorant is not directly sprayed on the odor in the space. ..

In this way, deodorants (particularly deodorants that are used by placing them in a space or by adhering to a structure in a space or a product in a space) have a continuous deodorizing effect. Is required.

Under such circumstances, the present inventor examined the durability of the deodorant containing a deodorant component, and found that the conventional deodorant was left immediately after spraying or application, or in a space. It was found that although an excellent deodorant effect is exhibited when the deodorant remains, the deodorant effect disappears when the deodorant becomes dry over time, and the deodorant effect cannot be sustained.

Therefore, an object of the present invention is to provide a method for improving the sustainability of the deodorizing effect of a deodorant.

As a result of diligent studies to solve the above problems, the present inventor found that the deodorant was composed of polyhydric alcohol, 3-methoxy-3-methylbutanol, and polyoxyethylene alkyl ether together with the deodorant component and water. It has been found that the sustainability of the deodorizing effect of the deodorizing component can be dramatically improved by containing at least one selected from the above group. More specifically, when the deodorant having the above composition is used by impregnating a liquid absorbing member or adhering to a structure in a space or a product in the space, the deodorant contained in the deodorant becomes volatile. It was found that the deodorant effect can be maintained even if the components volatilize and become dry. The present invention has been completed by further studies based on such findings.

That is, the present invention provides the inventions of the following aspects.
Item 1. A method for improving the sustainability of the deodorant effect of a deodorant, which includes (A) deodorant component, (B) polyhydric alcohol, 3-methoxy-3-methylbutanol, and polyoxyethylene alkyl ether. A method for improving sustainability, which comprises blending at least one selected from the group consisting of (C) water.
Item 2. The method for improving sustainability according to claim 1, which is performed to maintain the deodorizing effect after the deodorant has dried.

According to the present invention, the sustainability of the deodorizing effect of the deodorant can be improved. Therefore, the deodorant whose deodorant effect has been improved by the method of the present invention is used by spraying it on the structure of the space where deodorization is required or the product in the product space in the space. However, the deodorant function can be maintained in the structure or product, and the bad odor in the space can be effectively removed or alleviated. Further, when the deodorant whose deodorant effect is improved by the method of the present invention is used by being absorbed by a liquid absorbing member, the volatile component contained in the deodorant volatilizes and absorbs the liquid. Even if the sex member becomes dry, the deodorizing effect can be maintained.

The method of the present invention is a method for improving the sustainability of the deodorizing effect of a deodorant, which includes (A) component, (B) polyhydric alcohol, 3-methoxy-3-methylbutanol, and poly. It is characterized by blending at least one selected from the group consisting of oxyethylene alkyl ether, and (C) water. Hereinafter, the method of the present invention will be described in detail.

[(A) Deodorant component]
In the method of the present invention, the deodorant contains a deodorant component. The deodorant component used in the present invention may be appropriately set according to the type of malodorous substance and the like, and examples thereof include hydrazide compounds, amine compounds, polyphenols, betaine compounds, acids, bases and metal ions. Further, a preferable example of the deodorant component is a deodorant component that exhibits a deodorizing action by adsorbing or reacting with an aldehyde (formaldehyde, acetaldehyde, isovaleraldehyde, etc.). Specific examples of the deodorant component exhibiting a deodorizing action on aldehydes include hydrazide compounds, amine compounds, polyphenols, betaine compounds and the like.

Among the deodorant components, the hydrazide compound is a compound having one or more hydrazide groups (-NH-NH ₂ ) in one molecule, and is an aldehyde (formaldehyde, acetaldehyde, isovaleraldehyde) that causes a foul odor. It is a compound that has the effect of adsorbing (aldehyde, etc.) and deodorizing it.

The hydrazide compound used in the present invention is a monohydrazide compound having one hydrazide group in one molecule, a dihydrazide compound having two hydrazide groups in one molecule, or three or more hydrazide groups in one molecule. It may be any of the polyhydrazide compounds having.

Specific examples of the monohydrazide compound include acetohydrazide, formhydrazide, carbohydrazide, lauric acid hydrazide, salicylate hydrazide, propionate hydrazide, p-hydroxybenzoic acid hydrazide, naphthoic acid hydrazide, and 3-hydroxy-2-naphthoic acid. Hydrajid and the like can be mentioned.

Specific examples of the dihydrazide compound include dihydrazide succinic acid, dihydrazide adipic acid, dihydrazide oxalic acid, dihydrazide malonic acid, dihydrazide glutarate, dihydrazide pymelic acid, dihydrazide dihydric acid, dihydrazide azeline acid, and dihydrazide sevacinate. , Telephthalic acid dihydrazide, isophthalic acid dihydrazide, tartrate dihydrazide, malic acid dihydrazide, iminodiacetate dihydrazide, itaconic acid dihydrazide, dodecandidihydrazide, hexadecanedihydrazide, naphthoedidihydrazide, benzenedihydrazide, pyridinedihydrazide, pyridinedihydrazide, ..

Specific examples of the polyhydrazide compound having three or more hydrazide groups in one molecule include trihydrazide citrate, trihydrazide trinitroacetate, trihydrazide nitriloacetate, trihydrazide cyclohexanetricarboxylic acid, and tetrahydrazide ethylenediaminetetraacetate. Examples thereof include tetrahydrazide naphthoate and hydrazide polyacrylic acid.

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

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

Specific examples of the alkanolamine include monoethanolamine, triethanolamine, monomethanolamine, propanolamine, isopropanolamine, aminomethylpropanol, N-methylethanolamine, N-methylisopropanolamine, N-ethylethanolamine, and the like. Monoalkanolamines such as N-methylpropanolamine and N-ethylbutanolamine; dialkanolamines such as diethanolamine, dipropanolamine, diisopropanolamine, dibutanolamine, 2-amino-2-methyl-1,3-propanediol And so on.

Specific examples of the polyamine include ethylenediamine, diaminopropane, hexamethylenediamine and the like.

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

Among the deodorant components, polyphenol is a compound 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 deodorizing effect, and examples thereof include flavanols (catechins), flavones, anthocyanidins, leucoanthocyanidins, and proanthocyanidins. .. Polyphenols are plants such as cypress, grape seeds, pine, hiba, cedar, tea, camellia, sasanqua, persimmon, bamboo, bamboo grass, sage, thyme, rosemary, eucalyptus, lavender, parsley, apple fruit, mushrooms, and algae. In the present invention, these plant extracts can also be used as the deodorant component because they are contained in. These polyphenols may be used alone or in combination of two or more.

Among the deodorant components, the betaine compound has a positive charge and a negative charge at non-adjacent positions in the same molecule, and a dissociable hydrogen is not bonded to the atom having the positive charge, and the molecule as a whole Is an uncharged compound. The type of betaine compound used in the present invention is not particularly limited as long as it has a deodorizing effect, and examples thereof include betaine lauryldimethylaminoacetic acid. These betaine compounds may be used alone or in combination of two or more.

Among the deodorant components, the acid is not particularly limited as long as it has a deodorant action, and examples thereof include citric acid. The acid may be used alone or in combination of two or more.

Among the deodorant components, the base is not particularly limited as long as it has a deodorant action, and examples thereof include multiple layers. One type of base may be used alone, or two or more types may be used in combination.

Among the deodorant components, the metal ion is not particularly limited as long as it has a deodorant action, and examples thereof include silver ion, magnesium ion, zinc ion, titanium ion, and copper ion. These metal ions may be used alone or in combination of two or more.

Among these deodorant components, hydrazide compounds and amino compounds are preferable; more preferably alkanolamines, polyamines, monohydrazide compounds, dihydrazide compounds; and even more preferably aceto, from the viewpoint of further improving the sustainability of the deodorizing effect. Examples thereof include hydrazide, dihydrazide succinate, dihydrazide adipate, carbohydrazide, propanolamine, aminomethylpropanol, 2-amino-2-methyl-1,3-propanediol and ethylenediamine. In particular, acetohydrazide can be particularly preferably used because the component (B) described later not only improves the sustainability of the deodorizing effect but also enhances the deodorizing effect itself (the deodorizing effect at the initial stage of use).

In the method of the present invention, the amount of the component (A) contained in the deodorant may be appropriately set according to the type of the deodorant component to be used, the deodorant target, the degree of the deodorant effect to be imparted, and the like. However, for example, 0.1 to 20% by weight, preferably 0.5 to 10% by weight, and more preferably 1 to 5% by weight can be mentioned.

[(B) Polyhydric alcohol, methoxymethylbutanol, and / or polyoxyethylene alkyl ether]
In the method of the present invention, the deodorant contains a polyhydric alcohol, 3-methoxy-3-methylbutanol, and / or a polyoxyethylene alkyl ether as the component (B) in addition to the component (A). .. As described above, by containing the component (B), it is possible to improve the sustainability of the deodorizing effect of the component (A).

Among the components (B), examples of the polyhydric alcohol include 2- to tetravalent 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; glycerin and butanetriol (1,2,3-butanetriol, 1,2). Trihydric alcohols such as 2,4-butanetriol); tetrahydric alcohols such as erythritol and pentaerythritol can be mentioned. These polyhydric alcohols may be used alone or in combination of two or more.

Among the components (B), the 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, and examples thereof include 2 to 30, preferably 5 to 20, and more preferably 8 to 12. The alkyl group constituting the polyoxyethylene alkyl ether may be linear or branched. The number of carbon atoms of the alkyl group constituting the polyoxyethylene alkyl ether is not particularly limited, and examples thereof include 8 to 22, preferably 8 to 14, and more preferably 8 to 10. Specific examples of the 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, and POE stearyl ether. , POE isostearyl ether, POE arachidyl ether, POE behenyl ether and the like. Here, "POE" is polyoxyethylene, and these polyoxyethylene alkyl ethers may be used alone or in combination of two or more.

In the present invention, as the component (B), one of polyhydric alcohol, 3-methoxy-3-methylbutanol, and polyoxyethylene alkyl ether may be selected and used alone, or these Two or more of them may be used in combination.

Among these components (B), ethylene glycol, propylene glycol, triethylene glycol, glycerin, butanetriol, erythritol, pentaerythritol, and 3-methoxy are preferable from the viewpoint of further improving the sustainability of the deodorizing effect. -3-Methylbutanol and polyoxyethylene alkyl ether can be mentioned.

In particular, when acetohydrazide is used as the component (A), from the viewpoint of further improving the sustainability of the deodorizing effect, the component (B) is preferably ethylene glycol, propylene glycol, or triethylene glycol. , Glycerin, 3-methoxy-3-methylbutanol, and polyoxyethylene alkyl ether; more preferably, ethylene glycol, triethylene glycol, glycerin, 3-methoxy-3-methylbutanol, and polyoxyethylene alkyl ether. .. When dihydrazide succinate is used as the component (A), ethylene glycol, propylene glycol, and triethylene are preferably used as the component (B) from the viewpoint of further improving the sustainability of the deodorizing effect. Glycerol, glycerin, butanetriol, erythritol, pentaerythritol, 3-methoxy-3-methylbutanol, and polyoxyethylene alkyl ethers; more preferably ethylene glycol, propylene glycol, triethylene glycol, glycerin, butanetriol, erythritol, and Pentaerythritol; particularly preferred include glycerin, butanetriol, erythritol, and pentaerythritol. Further, when adipic acid dihydrazide and / or carbohydrazide is used as the component (A), glycerin is preferably used as the component (B) from the viewpoint of further improving the sustainability of the deodorant effect. .. Further, when propanolamine, aminomethylpropanol, and / or 2-amino-2-methyl-1,3-propanediol are used as the component (A), the sustainability of the deodorizing effect is further improved. From this point of view, glycerin is preferably mentioned as the component (B).

In the method of the present invention, the amount of the component (B) to be contained in the deodorant may be appropriately set according to the type of the component (B) to be used, the deodorizing target, etc. 20% by weight, preferably 0.5 to 10% by weight, more preferably 1 to 10% by weight.

Further, in the method of the present invention, the ratio of the component (A) to the component (B) contained in the deodorant is, for example, 10 to 1000 parts by weight of the component (B) per 100 parts by weight of the component (A). It is preferably 50 to 500 parts by weight, more preferably 100 to 400 parts by weight.

[(C) Water]
In the method of the present invention, the deodorant contains water as a base. The amount of water contained in the deodorant may be the balance of the components (A) and (B) and other additives added as needed, but is preferably 50% by weight or more, for example. Is 60 to 99% by weight, more preferably 70 to 97% by weight.

[Monohydric lower alcohol]
In the method of the present invention, the deodorant may contain a monohydric lower alcohol, if necessary. Examples of the monohydric lower alcohol include monohydric alcohols having 2 to 5 carbon atoms, and more specifically, ethanol, n-propanol, isopropanol, n-butanol, sec-butanol, tert-butanol, n-. Examples thereof include amyl alcohol, sec-amyl alcohol, isoamyl alcohol, tert-amyl alcohol, neopentyl alcohol and the like. These monohydric lower alcohols may be contained alone or in combination of two or more.

In the method of the present invention, when the deodorant contains a monohydric lower alcohol, the content thereof is not particularly limited, and examples thereof include 1 to 30% by weight.

[Other ingredients]
In the method of the present invention, the deodorant may contain other additives in addition to the above-mentioned components as long as the effects of the present invention are not impaired. Examples of such other additives include other solvents, pH regulators, preservatives, antibacterial agents, bactericides, antioxidants, UV absorbers, pigments, fragrances, surfactants, thickeners and the like. Can be mentioned.

[Deodorant with improved sustainability of deodorant effect]
Deodorants whose deodorant effect has been improved by the method of the present invention include, for example, indoor space, vehicle interior space, pet breeding area, wall, floor, ceiling, curtain, sofa, bedding, bed, clothing, shoes. , Leather products, cloth products, storage furniture (shoe boxes, etc.), etc. It is used by applying it to spaces or objects where deodorization is required for the purpose of removing or alleviating bad odors.

To deodorize using a deodorant whose deodorant effect has been improved by the method of the present invention, for example, it is deodorized in a state of being contained in an open container or in a state of being absorbed by a liquid absorbing member. It may be installed in the space to be deodorized or near the product to be deodorized. Examples of the liquid-absorbing member that absorbs the deodorant include natural fibers such as cotton, plant fibers, and pulp, synthetic fibers such as rayon, polyester, polyethylene terephthalate, polypropylene, and polyethylene, or fibers such as mixed fibers thereof. Quality materials: Wood pieces, rattan, bamboo, sora and other wood materials; urethane foam resin sponge materials and the like can be mentioned. When the liquid absorbing member is made of a fibrous material, it is preferably a non-woven fabric, but may be a woven fabric, a knitted fabric, or the like. The shape of the liquid-absorbent member may be any of a sheet shape, a rod shape, a string shape, a block shape and the like.

When a deodorant whose deodorant effect is improved by the method of the present invention is used by being absorbed by a liquid absorbing member, volatile components (water, etc.) in the deodorant are volatilized and absorbed. Even if the liquid member becomes dry, the deodorizing effect is maintained, so that the dry liquid-absorbing member can be continuously used. The period during which the liquid-absorbent member can be continuously used from the time it dries varies depending on the composition of the deodorant, the space to be deodorized, etc., but for example, about 120 days from the time when the liquid-absorbent member dries. Preferably, it can be used continuously for up to about 30 days.

Further, when deodorizing a space (indoor space, vehicle interior space, etc.) using a deodorant whose deodorant effect is improved by the method of the present invention, the deodorant is applied to the space where deodorization is required. May be sprayed directly, but the deodorant may be sprayed or applied to the structure (wall, floor, ceiling, door, etc.) of the space and the products (curtain, sofa, etc.) in the space. .. In this way, by spraying or applying a deodorant to the structure of the space or the product in the space, the deodorizing function is given to the structure of the space or the product in the space, and the bad odor in the space is released. Removed or mitigated. In this way, when deodorizing a space by imparting a deodorizing function to the structure of the space or the product in the space, it is required that the deodorizing effect of the deodorizing component adhering to the structure or product is maintained. However, in the deodorant in which the method of the present invention is carried out, the sustainability of the deodorizing effect is improved, and the required characteristics are satisfied. A preferred embodiment of the deodorant in which the method of the present invention is carried out is a deodorant sprayed or applied to a wall for deodorizing an indoor space. When the deodorant according to the method of the present invention is sprayed or applied to the structure of the space or the product in the space for deodorizing the space, the structure or the product itself is deodorized. Since it is not a target, the stench does not have to be present.

The form of the deodorant to which the method of the present invention has been carried out may be any of a spray type, an aerosol type, a stationary type, a cleaning sheet type and the like. In the case of a spray type or an aerosol type, the deodorant according to the method of the present invention is housed in a spray container or an aerosol container, and the space to be deodorized, the structure of the space, and the inside of the space. The deodorant may be sprayed on the product, the product to be deodorized, or the like. In the case of the stationary type, the deodorant according to the method of the present invention is stored in a container or a liquid absorbing member is made to absorb the deodorant so that it can come into contact with the space, and the deodorant is targeted. It may be placed in the space or in the vicinity of the product to be deodorized. In the case of a cleaning sheet type, the surface of the object to be deodorized may be wiped off with a cloth such as a non-woven fabric impregnated with the deodorant according to the method of the present invention. From the viewpoint of ease of use and the like, the deodorant to which the method of the present invention has been carried out is preferably used in a spray type, an aerosol type or a stationary type.

Hereinafter, the present invention will be described in more detail with reference to Examples and Comparative Examples, but the present invention is not limited thereto.

Test Examples The deodorants having the compositions shown in Tables 1 to 4 were prepared, and the tests shown below were performed to evaluate the sustainability of the deodorizing effect.

First, 0.4 g of each deodorant is dropped on the attached white cloth for testing (Cotton Kanakin No. 3, 5 cm x 5 cm, Japanese Standards Association), placed on a petri dish, and air-dried for 20 minutes with a dryer (use hot air). After allowing it to stand at room temperature for 60 minutes. Next, the test-attached white cloth subjected to the above treatment was sealed in a 10 L tedler bag together with 5 L odorless air. Then, acetaldehyde was introduced into the tedler bag so as to have a concentration of about 100 ppm. The time when acetaldehyde was introduced was set to 0 minutes, and the acetaldehyde concentration in the tedler bag after 0 minutes and 60 minutes was measured using a gas detector tube (acetaldehyde 92M, Gastec Co., Ltd.), and the deodorization rate was measured based on the following formula. Was calculated.

In this test, the deodorant rate was measured after 20 minutes of blast drying and 60 minutes of standing on the white cloth attached to the test to which 0.4 g of the deodorant was dropped. When the odor rate is high, it can be said that the deodorizing effect is durable. When 0.4 g of the deodorant solution was applied to the white cloth attached to the test and the deodorant rate was measured under the same conditions as above without drying and standing, the deodorant rate was 30 to 80 in all of Examples and Comparative Examples. It has been confirmed that it is%.

The results are shown in Tables 1 to 4. With a deodorant containing a hydrazide compound or an amide compound alone, the deodorization rate was 0% after drying for 20 minutes and standing for 60 minutes, and the deodorizing effect of the hydrazide compound could not be sustained. (Comparative Examples 1 to 8). On the other hand, with a deodorant containing a polyhydric alcohol, 3-methoxy-3-methylbutanol or polyoxyethylene alkyl ether for both the hydrazide compound and the amide compound, even after drying for 20 minutes and allowing to stand for 60 minutes. , The deodorizing rate was high, and the deodorizing effect was excellent in sustainability (Examples 1 to 28).

The deodorant rate (initial deodorant rate) measured using a deodorant containing acetohydrazide alone (Comparative Example 1) without drying and standing was 31%. On the other hand, acetohydrazide was used as the hydrazide compound, and a deodorant containing a polyhydric alcohol, 3-methoxy-3-methylbutanol or polyoxyethylene alkyl ether (Examples 1 to 7) was dried for 20 minutes. The deodorizing rate after standing for 60 minutes was 31% or more. That is, in the deodorants of Examples 1 to 7, in addition to enhancing the sustainability of the deodorizing effect of acetohydrazide by containing a polyhydric alcohol, 3-methoxy-3-methylbutanol or polyoxyethylene alkyl ether. , It was confirmed that the deodorant effect rate (initial deodorant effect) of acetohydrazide itself was also improved.

On the other hand, the deodorizing rate (initial deodorizing rate) measured using a deodorant containing dihydrazide succinate alone (Comparative Example 2) without drying and standing was 75%. On the other hand, when dihydrazide succinate is used as the hydrazide compound and a polyhydric alcohol, particularly a trihydric or higher polyhydric alcohol, is used as the component (B) (Examples 11 to 15), the deodorizing effect is achieved. It was confirmed that the sustainability of In particular, when butane triol was used as the component (B), it was confirmed that the deodorant effect rate itself was improved in addition to the increase in sustainability.

Claims (2)

A method for improving the sustainability of the deodorant effect of a deodorant, which includes (A) deodorant component, (B) polyhydric alcohol, 3-methoxy-3-methylbutanol, and polyoxyethylene alkyl ether. A method for improving sustainability, which comprises blending at least one selected from the group consisting of (C) water. The method for improving sustainability according to claim 1, which is performed to maintain the deodorizing effect after the deodorant has dried.