JP7767005B2 - Deodorant composition - Google Patents

Description

The present invention relates to a deodorizing composition, a deodorizing method, and a deodorizing wipe.

When shoes are worn, sweat and body heat create an environment inside which bacteria can grow. This produces bacterial metabolites such as valeric acid and isovaleric acid, which cause odor. While this type of odor is generally eliminated with spray deodorizers, this is not a fundamental solution. Therefore, there is a strong demand for technology that can prevent odor by suppressing bacterial growth and fundamentally eliminating the cause of odor.

Patent Document 1 discloses a technology for a disinfectant composition containing a quaternary ammonium salt that is effective against bacteria normally present on the skin and various bacteria present in the environment, and describes the use of a nonionic surfactant in combination.
Patent Document 2 discloses a technology for a fabric deodorizer containing a cationic surfactant and a nonionic surfactant.
Patent Documents 3 and 4 disclose techniques for cleaning sheets with excellent antifungal properties, and disclose techniques that use a quaternary ammonium salt surfactant and a nonionic surfactant in combination.

JP 2018-104428 A Japanese Patent Application Laid-Open No. 2003-3371 JP 2018-90564 A Japanese Patent Application Laid-Open No. 2019-112342

However, when these technologies are applied to deodorizers for items containing highly water-repellent and hydrophobic materials, such as shoes, there is an issue of insufficient deodorizing effect. While it is possible to improve deodorizing effect by increasing the concentration of cationic surfactants, taking into account factors such as skin irritation, a technology that provides excellent deodorizing effect even at low concentrations of cationic surfactants is required.

The present invention provides a deodorizing composition, a deodorizing method, and a deodorizing wipe that exhibit excellent deodorizing effects even at low concentrations of cationic surfactants.

The present invention relates to a deodorant composition containing (a) a cationic surfactant [hereinafter referred to as component (a)], (b) a nonionic surfactant having an HLB of less than 12.5 as determined by the Griffin method [hereinafter referred to as component (b)], and water, wherein the mass ratio (b)/(a) of the content of component (a) to the content of component (b) is 0.4 or more and 5.0 or less.

The present invention also relates to a deodorizing method in which the deodorizing composition is brought into contact with an object.

The present invention also relates to a deodorizing wipe comprising the deodorizing composition and a nonwoven fabric.

The present invention also relates to a microbicidal composition containing component (a), component (b), and water, in which the mass ratio (b)/(a) of the content of component (a) to the content of component (b) is 0.4 or more and 5.0 or less.

The present invention also relates to a disinfectant composition containing component (a), component (b), and water, in which the mass ratio (b)/(a) of the content of component (a) to the content of component (b) is 0.4 or more and 5.0 or less.

The present invention provides a deodorizing composition, a deodorizing method, and a deodorizing wipe that exhibit excellent deodorizing effects even when the cationic surfactant is present at a low concentration.

<Deodorant Composition>
[Component (a)]
Component (a) of the present invention is a cationic surfactant.
The component (a) is preferably one or more cationic surfactants selected from cationic surfactants represented by the following general formula (a1) and cationic surfactants represented by the following general formula (a2):

[In the formula, R ^1a represents an aliphatic hydrocarbon group having from 8 to 18 carbon atoms; R ^2a represents a group selected from an aliphatic hydrocarbon group having from 8 to 18 carbon atoms, an alkyl group having from 1 to 3 carbon atoms, and a hydroxyalkyl group having from 1 to 3 carbon atoms; R ^3a and R ^4a each independently represent a group selected from an alkyl group having from 1 to 3 carbon atoms and a hydroxyalkyl group having from 1 to 3 carbon atoms; and X ⁻ represents an anion.]

[In the formula, R ^5a is an aliphatic hydrocarbon group having from 8 to 18 carbon atoms, R ^6a and R ^7a are each independently a group selected from an alkyl group having from 1 to 3 carbon atoms and a hydroxyalkyl group having from 1 to 3 carbon atoms, and X ⁻ is an anion.]

In general formula (a1), from the viewpoint of bactericidal and deodorizing properties, the number of carbon atoms in R ^1a is preferably 10 or more and preferably 18 or less. R ^1a is preferably an alkyl group or an alkenyl group, and more preferably an alkyl group.
In general formula (a1), R ^2a is a group selected from an aliphatic hydrocarbon group having from 8 to 18 carbon atoms, an alkyl group having from 1 to 3 carbon atoms, and a hydroxyalkyl group having from 1 to 3 carbon atoms.
When R ^2a is an aliphatic hydrocarbon group having from 8 to 18 carbon atoms, from the viewpoint of bactericidal and deodorizing properties, R ^2a is preferably an alkyl or alkenyl group having from 10 to 16 carbon atoms, more preferably from 14 to 12 carbon atoms, and more preferably an alkyl group. When R ^2a is an aliphatic hydrocarbon group having from 8 to 18 carbon atoms, from the viewpoint of bactericidal and deodorizing properties, R ^1a is preferably an alkyl group having from 10 to 14 carbon atoms, more preferably from 12 to 12 carbon atoms.
When R ^2a is a group selected from an alkyl group having from 1 to 3 carbon atoms and a hydroxyalkyl group having from 1 to 3 carbon atoms, R ^1a is preferably an alkyl group having from 10 to 18 carbon atoms, more preferably from 12 to 14 carbon atoms, and even more preferably from 18 to 16 carbon atoms, from the viewpoint of disinfecting and deodorizing properties.
When R ^2a is a group selected from an alkyl group having 1 to 3 carbon atoms and a hydroxyalkyl group having 1 to 3 carbon atoms, R ^2a is preferably a group selected from an alkyl group having 1 to 3 carbon atoms.

In general formula (a1), ^R3a and ^R4a are each independently a group selected from an alkyl group having 1 to 3 carbon atoms and a hydroxyalkyl group having 1 to 3 carbon atoms. It is preferable that ^R3a and ^R4a are each independently a group selected from an alkyl group having 1 to 3 carbon atoms. Examples of the alkyl group having 1 to 3 carbon atoms include a methyl group, an ethyl group, and a propyl group. Examples of the hydroxyalkyl group having 1 to 3 carbon atoms include a hydroxymethyl group, a hydroxyethyl group, and a hydroxypropyl group.

In general formula (a1), X ⁻ represents an anion. Examples of the anion include halogen ions such as chloride ions, bromide ions, and iodide ions. Examples of the anion also include alkyl sulfate ions having 1 to 3 carbon atoms such as methyl sulfate ions, ethyl sulfate ions, and propyl sulfate ions.

Preferred compounds of general formula (a1) include one or more selected from N-alkyl-N,N,N-trimethylammonium salts in which the alkyl group has 12 to 18 carbon atoms, N,N-dialkyl-N,N-dimethyl-ammonium salts in which the alkyl group has 8 to 16 carbon atoms, and N-alkyl-N,N-dimethyl-N-ethylammonium salts in which the alkyl group has 12 to 16 carbon atoms.

In general formula (a2), ^R5a is an aliphatic hydrocarbon group having from 8 to 18 carbon atoms. From the viewpoint of bactericidal activity, the number of carbon atoms in ^R5a is preferably 10 or more, more preferably 12 or more, and preferably 16 or less, more preferably 14 or less. ^R5a is preferably an alkyl group or an alkenyl group, and more preferably an alkyl group.

In general formula (a2), R ^6a and R ^7a are each independently a group selected from an alkyl group having 1 to 3 carbon atoms and a hydroxyalkyl group having 1 to 3 carbon atoms. It is preferred that R ^6a and R ^7a are each independently a group selected from an alkyl group having 1 to 3 carbon atoms. Examples of the alkyl group having 1 to 3 carbon atoms include a methyl group, an ethyl group, and a propyl group. Examples of the hydroxyalkyl group having 1 to 3 carbon atoms include a hydroxymethyl group, a hydroxyethyl group, and a hydroxypropyl group.

In general formula (a2), X ⁻ represents an anion. Examples of the anion include halogen ions such as chloride ions, bromide ions, and iodide ions. Examples of the anion also include alkyl sulfate ions having 1 to 3 carbon atoms such as methyl sulfate ions, ethyl sulfate ions, and propyl sulfate ions.

Specific examples of compounds of general formula (a2) include N-dodecyl-N,N-dimethyl-N-benzyl ammonium salt, N-tridecyl-N,N-dimethyl-N-benzyl ammonium salt, N-tetradecyl-N,N-dimethyl-N-benzyl ammonium salt, N-pentadecyl-N,N-dimethyl-N-benzyl ammonium salt, N-hexadecyl-N,N-dimethyl-N-benzyl ammonium salt, N-dodecyl-N,N-diethyl-N-benzyl ammonium salt, N-tridecyl-N,N-diethyl-N-benzyl ammonium salt, and N-tetradecyl-N,N-diethyl-N-benzyl ammonium salt. Examples of suitable ammonium salts include one or more compounds selected from the group consisting of N-pentadecyl-N,N-diethyl-N-benzylammonium salt, N-hexadecyl-N,N-diethyl-N-benzylammonium salt, N-dodecyl-N-methyl-N-ethyl-N-benzylammonium salt, N-tridecyl-N-methyl-N-ethyl-N-benzylammonium salt, N-tetradecyl-N-methyl-N-ethyl-N-benzylammonium salt, N-pentadecyl-N-methyl-N-ethyl-N-benzylammonium salt, and N-hexadecyl-N-methyl-N-ethyl-N-benzylammonium salt.

[Component (b)]
Component (b) of the present invention is a nonionic surfactant having an HLB of less than 12.5 as determined by the Griffin method.

In the case of a nonionic surfactant having a polyoxyethylene group, the HLB of the component (b) can be determined by the Griffin method represented by the following general formula (1).
HLB value = [(molecular weight of the polyoxyethylene group portion of component (b)) / (molecular weight of component (b))] × 20 (1)
The molecular weight of the polyoxyethylene group portion of component (b) is calculated using the average number of moles of polyoxyethylene groups added.

The HLB of component (b) is preferably 8 or more and less than 12.5, preferably 12 or less, more preferably 11 or less, and even more preferably 10 or less, from the viewpoints of bactericidal activity when coexisting with a cationic surfactant and wettability to the target surface.

From the viewpoint of wettability and cleanability of the target surface, the component (b) is preferably a nonionic surfactant having an HLB of less than 12.5 and containing an alkyleneoxy group (including an ethyleneoxy group). From the viewpoint of wettability and cleanability of the target surface, the nonionic surfactant having an HLB of less than 12.5 and containing an alkyleneoxy group is preferably a nonionic surfactant represented by the following general formula (b1) and having an HLB of less than 12.5:
R ^1b (CO) _m O-(A ^1b O) _n -R ^2b (b1)
[In the formula, R ^1b is an aliphatic hydrocarbon group having from 8 to 16 carbon atoms, R ^2b is a hydrogen atom or a methyl group, CO is a carbonyl group, m is the number 0 or 1, and ^{A 1b} O group is an alkyleneoxy group containing an ethyleneoxy group and having from 2 to 4 carbon atoms, and n is the average number of moles added, which is a number of from 1 to 8.]

In general formula (b1), R ^1b is an aliphatic hydrocarbon group having 8 to 16 carbon atoms. In general formula (b1), if the chemical structure other than R ^1b is the same, the larger the number of carbon atoms in R ^1b , the lower the HLB value. From the viewpoints of wettability and cleanability to an object, the number of carbon atoms in R ^1b is 8 or more, preferably 10 or more, more preferably 12 or more, and 16 or less, preferably 14 or less.
R ^1b is an aliphatic hydrocarbon group, preferably a group selected from an alkyl group and an alkenyl group.

In general formula (b1), the A ^1b O group is an alkyleneoxy group containing an ethyleneoxy group and having from 2 to 4 carbon atoms, preferably an alkyleneoxy group containing an ethyleneoxy group and having from 2 to 3 carbon atoms, and more preferably an ethyleneoxy group. The A ^1b O group may be an alkyleneoxy group containing an ethyleneoxy group and another alkyleneoxy group, for example, a propyleneoxy group. The other alkyleneoxy group is preferably a propyleneoxy group. When the A ^1b O group contains an ethyleneoxy group and a propyleneoxy group, the ethyleneoxy group and the propyleneoxy group may be bonded in a block or random manner. The ethyleneoxy group increases the HLB value compared to the propyleneoxy group.

In general formula (b1), n is the number-average number of moles of A ^1b O groups added, and is a number from 1 to 8. In general formula (b1), if the chemical structure other than n is the same, the larger the number of n, the higher the HLB value, and the smaller the number of n, the lower the HLB value. From the viewpoint of bactericidal activity and solubility in the presence of a cationic surfactant, n is 1 or more, preferably 2 or more, more preferably 3 or more, and 8 or less, preferably 6 or less, more preferably 5 or less, and even more preferably 4 or less.

[Composition, etc.]
While shoe soles are made of water-repellent materials such as urethane, they also have the property of absorbing sweat and other substances. This causes bad odors caused by bacteria to be generated from the inside, and the deodorizing effect of ordinary deodorizers does not last long. For this reason, a method of preventing the generation of bad odors using disinfectants is desired.
Cationic surfactants are powerful disinfectants, but they are difficult to adhere uniformly to water-repellent materials, and the disinfectant effect does not spread to the entire target surface, particularly on hydrophobic surfaces with a surface free energy of 40 Nm/m or less, resulting in the problem that a satisfactory deodorizing effect cannot be obtained.
One possible technique for achieving uniform adhesion of the cationic surfactant is to use a surfactant other than component (b) of the present invention in combination with the cationic surfactant. However, this not only results in a worsening of the feel of the product in contact with the skin, such as foaming or sliminess, but also reduces the bactericidal effect of the cationic surfactant.
In the present invention, the use of a low-HLB nonionic surfactant not only allows the cationic surfactant to be spread evenly, but also enhances its bactericidal effect, making it possible to achieve a high deodorizing effect even when using a low concentration of cationic surfactant. Although the mechanism of action is unknown, it is presumed that the mixed micelles of the low-HLB nonionic surfactant and the cationic surfactant improve the wettability of the cationic surfactant to hydrophobic surfaces with a surface free energy of 40 Nm/m or less, allowing for even spreading, and that the low-HLB nonionic surfactant acts on the bacterial surface, improving the bactericidal effect of the cationic surfactant.

From the viewpoint of bactericidal and deodorizing properties, the deodorizer composition of the present invention contains component (a) in an amount of preferably 0.05% by mass or more, more preferably 0.1% by mass or more, even more preferably 0.2% by mass or more, and preferably 5% by mass or less, more preferably 2% by mass or less, even more preferably 1% by mass or less, and even more preferably 0.5% by mass or less. In the present invention, the mass of component (a) is calculated by converting the anion counterion into chloride ions.

From the viewpoints of wettability and cleansing properties for the target object, as well as the bactericidal and deodorizing properties achieved by the coexistence of the cationic surfactant, the deodorizer composition of the present invention preferably contains component (b) in an amount of at least 0.1% by mass, more preferably at least 0.2% by mass, even more preferably at least 0.3% by mass, and preferably at most 5% by mass, more preferably at most 2% by mass, even more preferably at most 1% by mass, and even more preferably at most 0.8% by mass.

In the deodorant composition of the present invention, the mass ratio (b)/(a) of the content of component (a) to the content of component (b) is, from the viewpoint of the synergistic effect of bactericidal and deodorizing properties, 0.4 or more, preferably 0.8 or more, more preferably 1 or more, even more preferably 1.5 or more, still more preferably 2 or more, and 5 or less, preferably 4 or less, more preferably 3.5 or less, and even more preferably 3 or less.

In the deodorant composition of the present invention, from the viewpoint of bactericidal and deodorizing properties, the total mass of the content of component (a) and the content of component (b) is preferably 0.1% by mass or more, more preferably 0.2% by mass or more, even more preferably 0.3% by mass or more, even more preferably 0.4% by mass or more, even more preferably 0.5% by mass or more, and preferably 5% by mass or less, more preferably 3% by mass or less, even more preferably 2% by mass or less, and even more preferably 1.6% by mass or less.

The deodorant composition of the present invention may contain a nonionic surfactant other than component (b) [hereinafter referred to as component (b')], but care must be taken as this may impair the effects of the present invention. When the HLB of component (b') is determined by Griffin's method, the deodorant composition of the present invention may contain component (b') so that the HLB of the mixed surfactant of components (b) and (b') is preferably 17 or less, more preferably 15 or less, and even more preferably less than 12.5, and 8 or more, from the viewpoint of bactericidal and deodorizing properties. It is assumed that the HLB of the mixed surfactant is additive.
Furthermore, when the deodorant composition of the present invention contains component (b') which cannot be determined by Griffin's method, the HLB of the mixed surfactant of components (b) and (b') can be calculated from the HLB of component (b') experimentally determined as follows.
A surfactant having a known HLB determined by Griffin's method is combined with component (b') to emulsify oils and fats with known HLB and water, and the mixture ratio with the best emulsified state is selected, and the HLB can be calculated using formula (I).
{(W _u ×HLB _u )+(W _a ×HLB _a )}/(W _u +W _a )=HLB ₀ (I)
(Where, W _u is the mass fraction of the component (b'), W _a is the mass fraction of the surfactant with a known HLB, HLB _u is the HLB of the surfactant with an unknown HLB, HLB _a is the HLB of the surfactant with a known HLB, and HLB ₀ is the HLB of the oil or fat with a known HLB.)

The deodorant composition of the present invention may contain a surfactant other than components (a), (b), and (b') [hereinafter referred to as component (e)], but caution is required as this may reduce the effects of the present invention. Examples of component (e) include an anionic surfactant (e1) [hereinafter referred to as component (e1)] and an amphoteric surfactant (e2) [hereinafter referred to as component (e2)]. Since component (e1) in particular may reduce the deodorizing effect, the content of component (e1) in the deodorant composition of the present invention is 1% by mass or less, preferably 0.5% by mass or less, and more preferably 0.1% by mass or less. Furthermore, when component (e1) is contained in the deodorant composition of the present invention, the mass ratio (a)/(e1) of the content of component (a) to the content of component (e1) is preferably 5 or more, preferably 10 or more, and more preferably 100 or more, from the viewpoint of obtaining a high deodorizing effect.
Care must be taken when using component (e2) in terms of the feel of the treated surface. Component (e2) is a foaming surfactant that can cause an undesirable feel to the surface after treatment, such as a slimy feel. Therefore, when used, the content of component (e2) in the deodorant composition of the present invention is 1% by mass or less, preferably 0.5% by mass or less, and more preferably 0.1% by mass or less.

In the deodorant composition of the present invention, the total content of components (a) and (b) in all surfactants is preferably 50% by mass or more, more preferably 60% by mass or more, even more preferably 70% by mass or more, even more preferably 80% by mass or more, even more preferably 90% by mass or more, and may be 100% by mass or less.

In the deodorant composition of the present invention, the total content of components (a), (b), and (b') in all surfactants is preferably 50% by mass or more, more preferably 60% by mass or more, even more preferably 70% by mass or more, even more preferably 80% by mass or more, even more preferably 90% by mass or more, and may be 100% by mass or less.

From the viewpoint of solubility of highly hydrophobic nonionic surfactants and fragrances and dispersibility of antifoaming agents, the deodorant composition of the present invention preferably further contains, as component (c), an organic solvent having a ClogP of -2.0 or more and 1.0 or less. In the present invention, ClogP is a calculated value calculated using ChemProperty in Perkin-Elmer's ChemBioDraw Ultraver 14.0. Note that a higher ClogP value indicates higher hydrophobicity.

Specific examples of component (c) are shown below. Note that the numbers in parentheses are the calculated values (CLogP) of each component calculated using ChemProperty in Perkin-Elmer's ChemBioDraw Ultraver 14.0.

(c) Ingredients include ethanol (-0.24), 1-propanol (0.29), 2-propanol (0.07), ethylene glycol (-1.4), propylene glycol (-1.1), butylene glycol (-0.73), hexylene glycol (-0.02), diethylene glycol (-1.3), triethylene glycol (-1.5), tetraethylene glycol (-1.66), dipropylene glycol (-0.69), tripropylene glycol (-0.55), glycerin (-1.5), diethylene glycol monomethyl ether (-0.78), diethylene glycol dimethyl ether (-0.26), triethylene glycol monomethyl ether (-0.96), diethylene glycol monoethyl ether (-0.39), diethylene glycol ethylene glycol diethyl ether (0.52), diethylene glycol monobutyl ether (0.67), dipropylene glycol monomethyl ether (-0.16), dipropylene glycol monoethyl ether (0.23), tripropylene glycol monomethyl ether (-0.03), 1-methoxy-2-propanol (-0.30), 1-ethoxy-2-propanol (0.09), 1-methylglycerin ether (-1.43), 2-methylglycerin ether (-0.73), 1,3-dimethylglycerin ether (-0.67), 1-ethylglycerin ether (-1.04), 1,3-diethylglycerin ether (0.11), triethylglycerin ether (0.83), and 1-pentylglyceryl ether (0.54).

From the viewpoints of wettability, storage stability, and ease of handling when used in a wiping agent (described below), the deodorant composition of the present invention preferably contains an organic solvent with a ClogP of -1.8 or more, more preferably -1.5 or more, and preferably 0.5 or less, more preferably 0.3 or less, and particularly preferably contains one or more selected from ethanol (-0.24), 1-propanol (0.29), 2-propanol (0.07), ethylene glycol (-1.4), and propylene glycol (-1.1).

From the viewpoints of solubility and base damage, the deodorant composition of the present invention contains component (c) in an amount of preferably 0.5% by mass or more, more preferably 1% by mass or more, and preferably 30% by mass or less, more preferably 20% by mass or less, even more preferably 10% by mass or less, even more preferably 5% by mass or less, and even more preferably 2.5% by mass or less.

From the standpoint of deodorizing acidic odors, the deodorant composition of the present invention preferably further contains an amine compound having a boiling point of 150°C or higher as component (d).

Component (d) includes one or more compounds selected from monoethanolamine, mono-lower alkyl (carbon number 1 to 3) aminomonoethanolamine, mono-lower alkyl (carbon number 1 to 3) aminodiethanolamine, di-lower alkyl (carbon number 1 to 3) aminomonoethanolamine, triethanolamine, tris(hydroxymethyl)aminomethane, amino acids, and polyethyleneimine with an average molecular weight of 600 to 100,000 (limited to amine compounds with a boiling point of 150°C or higher). From the viewpoint of having buffering capacity below weak alkalinity to reduce irritation and discomfort to the skin, component (d) is preferably one or more selected from tris(hydroxymethyl)aminomethane, polyethyleneimine, asparagine, lysine, arginine, and glutamine, more preferably one or more selected from tris(hydroxymethyl)aminomethane and polyethyleneimine, and even more preferably tris(hydroxymethyl)aminomethane.

From the viewpoints of deodorizing properties and skin irritation, the deodorant composition of the present invention contains component (d) in an amount of preferably 0.01% by mass or more, more preferably 0.05% by mass or more, even more preferably 0.1% by mass or more, and preferably 5% by mass or less, more preferably 3% by mass or less, and even more preferably 1% by mass or less.

The deodorant composition of the present invention may contain, as optional components, fragrance compounds, antioxidants, preservatives, dyes, antifoaming agents, or pH adjusters (excluding the above-mentioned components (a) to (e)).

The deodorant composition of the present invention contains water. As the water, ion-exchanged water, distilled water, sterilized purified water, tap water, or water containing 0.1 mg/kg or more and 5 mg/kg or less of a hypochlorite such as sodium hypochlorite can be used.
The deodorant composition of the present invention contains water in an amount of preferably 50% by mass or more, more preferably 60% by mass or more, even more preferably 70% by mass or more, and preferably 99% by mass or less, more preferably 98% by mass or less, even more preferably 97% by mass or less.

In the deodorant composition of the present invention, the pH at 25°C is preferably 5.0 or higher, more preferably 6.0 or higher, even more preferably 7.0 or higher, from the viewpoints of deodorizing ability against acidic odors and skin irritation, and is preferably 10 or lower, more preferably 9.0 or lower, and even more preferably 8.0 or lower. In the present invention, the pH is measured by the glass electrode method.

<Odor prevention method>
The present invention relates to a deodorizing method for contacting an object with the deodorizer composition of the present invention. The deodorizing method of the present invention can be suitably used to deodorize malodors caused by bacteria.
The deodorizing method of the present invention can appropriately apply the matters described in relation to the deodorizing composition of the present invention.

The object to be brought into contact with the deodorant composition of the present invention is preferably an object with a hydrophobic surface. Here, an object with a hydrophobic surface is one with a surface free energy of 40 Nm/m or less. The effects of the present invention are particularly pronounced when applied to hydrophobic surfaces of 35 Nm/m or less, and even more particularly 30 Nm/m or less. The surface free energy of the present invention is calculated using the following OWRK (Owens-Wendt-Rabel-Kaelble) formula (II) by substituting the contact angles (however, when a rough surface is used, the apparent contact angles) of liquid paraffin (Wako Grade 1, Fujifilm Wako Pure Chemical Industries, Ltd.) and ultrapure water (for LC/MS, Fujifilm Wako Pure Chemical Industries, Ltd.) with respect to each surface as liquids with known surface tensions.

It is believed that cationic surfactants cannot be uniformly adsorbed onto such hydrophobic surfaces. Furthermore, methods for improving the wettability of the hydrophobic surface can be considered to allow the cationic surfactant to be uniformly adsorbed, and this is generally achieved by using a surfactant. However, surfactants other than component (b) of the present invention are less effective at improving wettability. While the mechanism of action is unclear, it is presumed that in the present invention, components (a) and (b) form mixed micelles, which makes it possible for a small amount of cationic surfactant to be uniformly adsorbed onto the hydrophobic surface.

In the present invention, from the viewpoints of cleansing ability, effectiveness, and quick-drying property, the deodorant composition of the present invention is preferably contacted with the hydrophobic surface of an object in an amount ^of at least 20 mg, more preferably at least 30 mg, even more preferably at least 40 mg, and preferably at most 400 mg, more preferably at most 200 mg, and even more preferably at most 100 mg, per 100 cm2 of the hydrophobic surface. Furthermore, from the viewpoints of discomfort such as slimy feeling and skin irritation, the deodorant composition of the present invention is preferably contacted with the hydrophobic surface of an object in an amount of at ^least 20 μg, preferably at least 40 μg, more preferably at least 60 μg, even more preferably at least 80 μg, particularly preferably at least 100 μg, and at most 20 mg, preferably at most 10 mg, and more preferably at most 5 mg.

The deodorizer composition of the present invention can be applied to objects that come into contact with, specifically, plastic materials such as urethane resin, silicone resin, polyester resin, polyethylene resin, polypropylene resin, and polystyrene resin, as well as foamed or porous materials made from these materials. Specifically, the composition is effective on objects that have a problem with sweat odor, such as shoe soles and leather, living facilities such as mattresses and sofas, hats and helmets, etc.
The object to be brought into contact with the deodorant composition of the present invention is preferably a shoe, more preferably a shoe insole.

As a method for contacting the deodorizing composition of the present invention with an object, the deodorizing composition of the present invention may be sprayed or applied to the object. However, from the perspective of removing dirt and deodorizing the object, a method in which the deodorizing composition of the present invention is impregnated into a nonwoven fabric and then brought into contact with the object is preferred. In other words, the present invention provides a deodorizing cleaning wipe comprising the deodorizing composition of the present invention and a nonwoven fabric.

<Deodorizing cleaning material>
The present invention relates to a deodorizing wipe comprising the deodorizing composition of the present invention and a nonwoven fabric. The deodorizing wipe of the present invention is obtained by impregnating the nonwoven fabric with the deodorizing composition of the present invention.
The deodorizing wipes of the present invention can be appropriately applied with the matters described in relation to the deodorizing composition and deodorizing method of the present invention.

In the deodorizing wiping material of the present invention, the nonwoven fabric is processed into a sheet, and the fibers constituting the nonwoven fabric are preferably composed of one or more types of fibers selected from hydrophilic fibers and hydrophobic fibers.
In the present invention, the term "hydrophilic fiber" refers to a fiber having a moisture regain under standard conditions (20°C, 65% RH) of more than 5% by mass. The moisture regain under standard conditions is measured by the method specified in JIS L 1013 and JIS L 1015. The term "hydrophobic fiber" refers to a fiber having a moisture regain under standard conditions (20°C, 65% RH) of 5% by mass or less.

Examples of hydrophobic chemical fibers include polyamide fibers (such as nylon), polyester fibers (such as polyester), polyacrylonitrile fibers (such as acrylic), polyvinyl alcohol fibers (such as vinylon), polyvinyl chloride fibers (such as polyvinyl chloride), polyvinylidene chloride fibers (such as vinylidene), polyolefin fibers (such as polyethylene and polypropylene), polyurethane fibers (such as polyurethane), and polyvinyl chloride/polyvinyl alcohol copolymer fibers (such as polycrelal), and these can be used alone or in combination.

Hydrophilic fibers include seed hair fibers (cotton, cotton, kapok, etc.), bast fibers (hemp, flax, ramie, hemp, jute, etc.), leaf vein fibers (Manila hemp, sisal, etc.), palm fibers, rushes, straw, animal hair fibers (wool, mohair, cashmere, camel hair, alpaca, vicuna, angora, etc.), silk fibers (domestic silk, wild silk), feathers, and cellulosic fibers (rayon, polynosic, cupra, acetate, etc.), and these can be used alone or in combination of two or more.

The nonwoven fabric used in the present invention preferably contains hydrophilic fibers. From the viewpoint of improving the moisture content, the nonwoven fabric used in the present invention preferably contains hydrophilic fibers in an amount of 50% by mass or more, more preferably 60% by mass or more, even more preferably 70% by mass or more, and preferably 100% by mass or less, more preferably 90% by mass or less, and even more preferably 85% by mass or less.

From the viewpoints of strength and ease of wiping, the basis weight of the nonwoven fabric used in the present invention is preferably 20 g/ ^m2 or more, more preferably 30 g/m2 or ^more , and preferably 100 g/m2 or ^less , more preferably 80 g/m2 or ^less , and even more preferably 70 g/m2 ^or less.

The mass ratio of the deodorant composition of the present invention to the mass of the nonwoven fabric (pickup (mass %)) is preferably 200 mass % or more, more preferably 250 mass % or more, even more preferably 300 mass % or more, and still more preferably 350 mass % or more, from the viewpoint of ease of wiping and base transferability, and is preferably 600 mass % or less, more preferably 550 mass % or less, and even more preferably 500 mass % or less, from the viewpoint of quick drying. The pick-up is calculated using the following formula.
Impregnation rate (mass %)=((mass of nonwoven fabric impregnated with deodorant composition)/(mass of dried nonwoven fabric)−1)×100

The method for wiping an object using the deodorizing cleaning material of the present invention involves pressing the deodorizing cleaning material of the present invention against the object and applying an external force to the object without damaging it, thereby transferring and removing dirt adhering to the object. This can be done by rubbing, kneading, or tapping.

The present invention provides a microbicidal composition comprising component (a), component (b), and water, wherein the mass ratio (b)/(a) of the content of component (a) to the content of component (b) is 0.4 or more and 5.0 or less.
The present invention also provides a method for killing a microbe, which comprises contacting an object with the microbicidal composition of the present invention.
The present invention also provides a microbicidal wipe comprising the microbicidal composition of the present invention and a nonwoven fabric.
The microbicidal composition, microbicidal method, and microbicidal wiping material of the present invention can be appropriately applied to the matters described for the deodorizing composition of the present invention by replacing "deodorizer" with "microbicide."
The microbicidal composition, microbicidal method, and microbicidal wiping material of the present invention can be appropriately applied to the matters described in the deodorizing method of the present invention by replacing "deodorizing" with "killing microorganisms."
The microbicidal composition, microbicidal method, and microbicidal wiping material of the present invention can be appropriately applied to the matters described for the deodorizing wiping material of the present invention by replacing "deodorizing" with "microbicidal."

The present invention provides a disinfectant composition containing component (a), component (b), and water, wherein the mass ratio (b)/(a) of the content of component (a) to the content of component (b) is 0.4 or more and 5.0 or less.
The present invention also provides a method for sterilizing an object by contacting the sterilizing composition of the present invention with the object.
The present invention also provides a disinfectant wipe comprising the disinfectant composition of the present invention and a nonwoven fabric.
The disinfectant composition, disinfection method, and disinfectant wipe of the present invention can be appropriately applied to the matters described for the deodorizer composition of the present invention by replacing "deodorizer" with "disinfectant."
The disinfectant composition, disinfection method, and disinfectant wipe of the present invention can be appropriately applied to the matters described in the deodorizing method of the present invention by replacing "deodorizing" with "disinfection."
The disinfectant composition, disinfection method, and disinfectant wipe of the present invention can be appropriately applied to the matters described for the deodorizing wipe of the present invention by replacing "deodorizing" with "disinfecting."

In relation to the above-described embodiments, the present invention further discloses the following deodorizing composition, deodorizing method, and deodorizing wipes. The matters described for the deodorizing composition, deodorizing method, and deodorizing wipes of the present invention can be applied to these aspects as appropriate.

<1>
A deodorizer composition comprising (a) a cationic surfactant [hereinafter referred to as component (a)], a nonionic surfactant having an HLB of less than 12.5 as determined by the Griffin method [hereinafter referred to as component (b)], and water, wherein the mass ratio (b)/(a) of the content of component (a) to the content of component (b) is 0.4 or more and 5.0 or less.

<2>
The deodorizer composition according to <1>, wherein the component (a) is one or more cationic surfactants selected from the group consisting of cationic surfactants represented by the following general formula (a1) and cationic surfactants represented by the following general formula (a2):

[In the formula, R ^1a represents an aliphatic hydrocarbon group having from 8 to 18 carbon atoms; R ^2a represents a group selected from an aliphatic hydrocarbon group having from 8 to 18 carbon atoms, an alkyl group having from 1 to 3 carbon atoms, and a hydroxyalkyl group having from 1 to 3 carbon atoms; R ^3a and R ^4a each independently represent a group selected from an alkyl group having from 1 to 3 carbon atoms and a hydroxyalkyl group having from 1 to 3 carbon atoms; and X ⁻ represents an anion.]

[In the formula, R ^5a is an aliphatic hydrocarbon group having from 8 to 18 carbon atoms, R ^6a and R ^7a are each independently a group selected from an alkyl group having from 1 to 3 carbon atoms and a hydroxyalkyl group having from 1 to 3 carbon atoms, and X ⁻ is an anion.]

<3>
The deodorizer composition according to <2>, wherein the cationic surfactant represented by general formula (a1) is at least one selected from the group consisting of N-alkyl-N,N,N-trimethylammonium salts in which the alkyl group has 12 to 18 carbon atoms, N,N-dialkyl-N,N-dimethyl-ammonium salts in which the alkyl group has 8 to 16 carbon atoms, and N-alkyl-N,N-dimethyl-N-ethylammonium salts in which the alkyl group has 12 to 16 carbon atoms.

＜4＞
The cationic surfactant represented by general formula (a2) is N-dodecyl-N,N-dimethyl-N-benzyl ammonium salt, N-tridecyl-N,N-dimethyl-N-benzyl ammonium salt, N-tetradecyl-N,N-dimethyl-N-benzyl ammonium salt, N-pentadecyl-N,N-dimethyl-N-benzyl ammonium salt, N-hexadecyl-N,N-dimethyl-N-benzyl ammonium salt, N-dodecyl-N,N-diethyl-N-benzyl ammonium salt, N-tridecyl-N,N-diethyl-N-benzyl ammonium salt, or N-tetradecyl-N,N-diethyl-N-benzyl ammonium salt. , N-pentadecyl-N,N-diethyl-N-benzylammonium salt, N-hexadecyl-N,N-diethyl-N-benzylammonium salt, N-dodecyl-N-methyl-N-ethyl-N-benzylammonium salt, N-tridecyl-N-methyl-N-ethyl-N-benzylammonium salt, N-tetradecyl-N-methyl-N-ethyl-N-benzylammonium salt, N-pentadecyl-N-methyl-N-ethyl-N-benzylammonium salt, and N-hexadecyl-N-methyl-N-ethyl-N-benzylammonium salt.

<5>
The deodorant composition according to any one of <1> to <4> above, wherein the HLB of the component (b) is preferably 8 or more and preferably 12 or less, more preferably 11 or less, and even more preferably 10 or less.

<6>
The deodorant composition according to any one of <1> to <5>, wherein the component (b) is a nonionic surfactant represented by the following general formula (b1):
R ^1b (CO) _m O-(A ^1b O) _n -R ^2b (b1)
[In the formula, R ^1b is an aliphatic hydrocarbon group having from 8 to 16 carbon atoms, R ^2b is a hydrogen atom or a methyl group, CO is a carbonyl group, m is the number 0 or 1, and ^{A 1b} O group is an alkyleneoxy group containing an ethyleneoxy group and having from 2 to 4 carbon atoms, and n is the average number of moles added, which is a number of from 1 to 8.]

＜７＞
The deodorant composition according to any one of <1> to <6>, containing the component (a) in an amount of preferably 0.05% by mass or more, more preferably 0.1% by mass or more, even more preferably 0.2% by mass or more, and preferably 5% by mass or less, more preferably 2% by mass or less, even more preferably 1% by mass or less, and still more preferably 0.5% by mass or less.

＜8＞
The deodorant composition according to any one of <1> to <7>, containing the component (b) in an amount of preferably 0.1% by mass or more, more preferably 0.2% by mass or more, even more preferably 0.3% by mass or more, and preferably 5% by mass or less, more preferably 2% by mass or less, even more preferably 1% by mass or less, and still more preferably 0.8% by mass or less.

＜９＞
The deodorant composition according to any one of <1> to <8> above, wherein the mass ratio (b)/(a) of the content of the component (a) to the content of the component (b) is preferably 0.8 or more, more preferably 1 or more, even more preferably 1.5 or more, still more preferably 2 or more, and is preferably 4 or less, more preferably 3.5 or less, and even more preferably 3 or less.

<10>
The deodorant composition according to any one of <1> to <9> above, wherein the total mass of the content of the component (a) and the content of the component (b) is preferably 0.1% by mass or more, more preferably 0.2% by mass or more, even more preferably 0.3% by mass or more, still more preferably 0.4% by mass or more, still more preferably 0.5% by mass or more, and preferably 5% by mass or less, more preferably 3% by mass or less, even more preferably 2% by mass or less, and still more preferably 1.6% by mass or less.

<11>
The deodorant composition according to any one of <1> to <10>, further optionally containing, as the component (e), one or more surfactants selected from (e1) anionic surfactants [hereinafter referred to as component (e1)] and (e2) amphoteric surfactants [hereinafter referred to as component (e2)].

<12>
The deodorant composition according to <11> above, wherein the content of the component (e1) is 1% by mass or less, preferably 0.5% by mass or less, and more preferably 0.1% by mass or less.

<13>
The deodorizer composition according to <11> or <12>, wherein the mass ratio (a)/(e1) of the content of the component (a) to the content of the component (e1) is 5 or more, preferably 10 or more, and more preferably 100 or more.

<14>
<11> to <13>, wherein the content of the component (e2) is 1% by mass or less, preferably 0.5% by mass or less, and more preferably 0.1% by mass or less.

＜15＞
The deodorant composition according to any one of <1> to <14>, wherein the proportion of the total content of the component (a) and the component (b) in all surfactants is preferably 50% by mass or more, more preferably 60% by mass or more, even more preferably 70% by mass or more, still more preferably 80% by mass or more, and still more preferably 90% by mass or more, and 100% by mass or less.

<16>
<15> The deodorizer composition according to any one of <1> to <14>, wherein the total content of the components (a) and (b) in all surfactants is 100% by mass.

＜17＞
<17> The deodorant composition according to any one of <1> to <16>, further comprising, as component (c), an organic solvent having a ClogP of −2.0 or more and 1.0 or less.

＜18＞
The deodorizer composition according to <17>, wherein the component (c) is an organic solvent having a ClogP of preferably −1.8 or more, more preferably −1.5 or more, and preferably 0.5 or less, more preferably 0.3 or less.

＜19＞
The deodorizer composition according to <17> or <18>, wherein the component (c) is at least one selected from the group consisting of ethanol, 1-propanol, 2-propanol, ethylene glycol, and propylene glycol.

＜20＞
The deodorant composition according to any one of <17> to <19>, containing the component (c) in an amount of preferably 0.5% by mass or more, more preferably 1% by mass or more, and preferably 30% by mass or less, more preferably 20% by mass or less, even more preferably 10% by mass or less, still more preferably 5% by mass or less, and still more preferably 2.5% by mass or less.

＜21＞
The deodorant composition according to any one of <1> to <20> above, further comprising an amine compound having a boiling point of 150°C or higher as component (d).

<22>
The deodorant composition according to the above item <21>, wherein the component (d) is preferably at least one selected from tris(hydroxymethyl)aminomethane, polyethyleneimine, asparagine, lysine, arginine, and glutamine, more preferably at least one selected from tris(hydroxymethyl)aminomethane and polyethyleneimine, and even more preferably tris(hydroxymethyl)aminomethane.

＜23＞
The deodorizer composition according to <21> or <22>, containing the component (d) in an amount of preferably 0.01% by mass or more, more preferably 0.05% by mass or more, even more preferably 0.1% by mass or more, and preferably 5% by mass or less, more preferably 3% by mass or less, even more preferably 1% by mass or less.

＜24＞
The deodorizer composition according to any one of <1> to <23>, containing water in an amount of preferably 50% by mass or more, more preferably 60% by mass or more, even more preferably 70% by mass or more, and preferably 99% by mass or less, more preferably 98% by mass or less, even more preferably 97% by mass or less.

＜25＞
The deodorizer composition according to any one of <1> to <24>, which has a pH at 25°C of preferably 5.0 or more, more preferably 6.0 or more, even more preferably 7.0 or more, and preferably 10 or less, more preferably 9.0 or less, even more preferably 8.0 or less.

<26>
A deodorizing method comprising contacting an object with the deodorizer composition according to any one of <1> to <25>.

＜27＞
The deodorizing method according to <26>, wherein the object has a hydrophobic surface.

＜28＞
The deodorizing method according to <26> or <27>, wherein the surface free energy of the object is 40 Nm/m or less, further 35 Nm/m or less, further 30 Nm/m or less.

＜29＞
The deodorizing method according to any one of <26> to ^<28> , wherein the deodorizer composition is contacted in an amount of preferably 20 mg or more, more preferably 30 mg or more, even more preferably 40 mg or more, and preferably 400 mg or less, more preferably 200 mg or less, even more preferably 100 mg or less, per 100 cm2 of the hydrophobic surface of the object.

＜30＞
The deodorizing method according to any ^one of <26> to <28>, wherein the deodorizer composition is brought into contact with the object so that the total mass of the deodorizer composition (a) and the component (b) is 20 μg or more, preferably 40 μg or more, more preferably 60 μg or more, even more preferably 80 μg or more, particularly preferably 100 μg or more, and 20 mg or less, preferably 10 mg or less, more preferably 5 mg or less, per 100 cm2 of the hydrophobic surface of the object.

＜31＞
The deodorizing method according to any one of <26> to <30>, wherein the object is a shoe.

＜32＞
The deodorizing method according to any one of <26> to <31>, wherein the deodorizer composition is impregnated into a nonwoven fabric and brought into contact with the object.

＜33＞
<32> The deodorizing method according to any one of <26> to <32>, which deodorizes a bad odor caused by bacteria.

＜34＞
A deodorizing wipe comprising the deodorizer composition according to any one of <1> to <25> and a nonwoven fabric.

＜35＞
The deodorizing wiping material according to <34>, wherein the nonwoven fabric contains hydrophilic fibers in an amount of preferably 50% by mass or more, more preferably 60% by mass or more, even more preferably 70% by mass or more, and preferably 100% by mass or less, more preferably 90% by mass or less, even more preferably 85% by mass or less.

＜36＞
The deodorizing wiping material according to <34> or <35>, wherein the basis weight of the nonwoven fabric is preferably 20 g/m ² or more, more preferably 30 g/m ² or more, and preferably 100 g/m ² or less, more preferably 80 g/m ² or less, and even more preferably 70 g/m ² or less.

＜３７＞
The deodorizing wiping material according to any one of <34> to <36>, wherein the impregnation rate (% by mass) of the deodorizer composition relative to the mass of the nonwoven fabric, calculated by the following formula, is preferably 200% by mass or more, more preferably 250% by mass or more, even more preferably 300% by mass or more, still more preferably 350% by mass or more, and preferably 600% by mass or less, more preferably 550% by mass or less, and even more preferably 500% by mass or less.
Impregnation rate (mass %)=((mass of nonwoven fabric impregnated with deodorant composition)/(mass of dried nonwoven fabric)−1)×100

＜38＞
The deodorizing wiping material according to any one of <34> to <36>, wherein the nonwoven fabric is processed into a sheet shape.

The deodorant compositions shown in Tables 1 to 3 were prepared using the ingredients listed below and evaluated for the following items. The results are shown in Tables 1 to 3. The deodorant compositions in Tables 1 to 3 were prepared by conventional methods. That is, component (a), component (b) and/or component (b'), component (c), and component (d) were added to an appropriate amount of ion-exchanged water (60°C), dissolved at room temperature, and then hydrochloric acid was added to adjust the pH (25°C) to the values shown in Tables 1 to 3. Note that the mass percentages of the ingredients in Tables 1 to 3 are all values based on the active ingredients.

<Ingredients>
Component (a) Alkyldimethylbenzylammonium chloride: a compound represented by the general formula (a2) in which R ^5a is an alkyl group having 12 to 16 carbon atoms, R ^6a and R ^7a are methyl groups, and X ⁻ is a chloride ion, manufactured by Kao Corporation, Sanisol B-50
Hexadecyltrimethylammonium chloride: a compound in which, in the general formula (a1), R ^1a is an alkyl group having 16 carbon atoms, R ^2a , R ^3a , and R ^4a are methyl groups, and X ⁻ is a chloride ion, manufactured by Tokyo Chemical Industry Co., Ltd. Didecyldimethylammonium chloride: a compound in which, in the general formula (a1), R ^1a and R ^2a are alkyl groups having 10 carbon atoms, R ^3a and R ^4a are methyl groups, and X ⁻ is a chloride ion, manufactured by Tokyo Chemical Industry Co., Ltd. Dodecyltrimethylammonium chloride: a compound in which, in the general formula (a1), R ^1a is an alkyl group having 12 carbon atoms, R ^2a , R ^3a , and R ^4a are methyl groups, and X ⁻ is a chloride ion, manufactured by Tokyo Chemical Industry Co., Ltd.

Component (b): Emulgen 103; polyoxyethylene lauryl ether: HLB 8.1, manufactured by Kao Corporation; Emulgen 105: polyoxyethylene lauryl ether: HLB 9.7, manufactured by Kao Corporation; Emulgen 106: polyoxyethylene lauryl ether: HLB 10.5, manufactured by Kao Corporation; Emulgen 108: polyoxyethylene lauryl ether: HLB 12.1, manufactured by Kao Corporation. Component (b') (comparison component to component (b))
Emulgen MS-110: Polyoxyethylene polyoxypropylene alkyl ether: HLB 12.7, manufactured by Kao Corporation. Emulgen 109P: Polyoxyethylene lauryl ether: HLB 13.6, manufactured by Kao Corporation. Emulgen 121: Polyoxyethylene lauryl ether: HLB 16.6, manufactured by Kao Corporation. Emulgen 129L: Polyoxyethylene lauryl ether: HLB 17.5, manufactured by Kao Corporation.

(c) Component: Ethanol: ClogP-0.24, manufactured by Fujifilm Wako Pure Chemical Industries, Ltd.; Propylene glycol: ClogP-1.1, manufactured by Fujifilm Wako Pure Chemical Industries, Ltd. (d) Component: Tris(hydroxymethyl)aminomethane: manufactured by Fujifilm Wako Pure Chemical Industries, Ltd.

<Bactericidal test>
Assuming that the deodorant composition would be diluted by sweating after being treated on the target surface, each deodorant composition was diluted 360 times with PBS aqueous solution (phosphate buffered saline) to prepare a test solution. Staphylococcus aureus NBRC12732 and Staphylococcus epidermidis ATCC12228 were used as test bacteria. Cultured on SCD agar medium was suspended in physiological saline to prepare a bacterial solution with a concentration of 2.0 x 10 ⁹ CFU/mL or more and 9.0 x 10 ¹⁰ CFU/mL or less. 0.1 mL of the bacterial solution was added to 10 mL of test solution. A PBS aqueous solution containing no deodorant composition was used as a blank. After 15 minutes of contact with the sample while shaking with a bioshaker at 25°C, 500 mL of the sample was taken and added to 4.5 mL of the inactivating agent, LP diluted solution, and stirred thoroughly. This was then pour cultured on SCD agar medium, and the viable cell count was calculated. The bactericidal activity value was calculated using the following formula. The results are shown in Tables 1 and 3.
R=log(A)-log(B)
where R is the bactericidal activity value, A is the number of surviving bacteria in the blank test solution (CFU/mL),
B: Number of surviving bacteria in the test solution of each deodorant composition (CFU/mL)

<Leather wettability test>
Each deodorant composition was impregnated into a nonwoven fabric (AS-60, manufactured by Daiwabo Polytech Co., Ltd.) in an amount of 400% by mass relative to the mass of the nonwoven fabric to prepare wiping materials. The surface of polyurethane synthetic leather (PU-110, surface free energy 29.4 Nm/m, sold by Ishino Interactive Co., Ltd.) was wiped with each of the prepared wiping materials, and the wetting was evaluated according to the following criteria. The results are shown in Tables 1 and 3.
◎: The entire surface is wet, including the grooves. 〇: The area around the grooves is slightly less wet, but the entire surface is wet. △: The entire surface is slightly water-repellent. ×: The entire surface is water-repellent.

<Odor prevention test by wiping inside the shoes>
Wiping materials were prepared by impregnating a nonwoven fabric (AS-60, manufactured by Daiwabo Polytech Co., Ltd.) with each deodorant composition so that the amount was 400% by mass relative to the mass of the nonwoven fabric. Using each of the prepared wiping materials, one shoe was wiped with a reference composition (Examples 1 to 12 and Examples 18 to 22 are based on Comparative Example 5. In addition, Examples 13 to 17 are based on Comparative Examples 6 to 9, which have the same concentration of component (a) as the comparative example composition but do not contain component (b)), and the other shoe was wiped with each deodorant composition.
The above procedure was carried out every day before wearing, and the shoes were then dried and worn for 8 hours. The above procedure was repeated for 5 days, and the shoe odor was evaluated by a sensory panel of 5 expert panelists according to the following criteria. The average scores of the above evaluation results are shown in Tables 1 and 2. A score of 1.0 or higher was considered a pass.
3 points: The odor is much weaker than the standard composition. 2 points: The odor is weaker than the standard composition. 1 point: The odor is slightly weaker than the standard composition. 0 point: The odor is equal to or weaker than the standard composition.

Claims (19)

1. A deodorant composition for wiping an object having a hydrophobic surface, comprising: a cationic surfactant [hereinafter referred to as component (a)]; a nonionic surfactant containing an ethyleneoxy group represented by the following general formula (b1) , having an HLB of 8 to 10 as determined by Griffin's method [hereinafter referred to as component (b)]; and water, wherein the total mass of the contents of components (a) and (b) is 0.1 to 3 mass%, the mass ratio (b)/(a) of the contents of components (a) and (b) is 0.8 to 3.5, and when a nonionic surfactant other than component (b) [hereinafter referred to as component (b')] is contained, the average HLB of the mixed surfactants of components (b) and (b') is 8 to 12.5.
R ^1b O-(A ^1b O) _n -R ^2b (b1)
[In the formula, R ^1b is an aliphatic hydrocarbon group having from 8 to 16 carbon atoms, R ^2b is a hydrogen atom or a methyl group, ^{A 1b} O group is an alkyleneoxy group having from 2 to 4 carbon atoms and containing an ethyleneoxy group, and n is the average number of moles added, which is a number of from 1 to 8.] The deodorant composition according to claim 1, wherein the mass ratio (b)/(a) of the content of component (a) to the content of component (b) is 0.8 or more and 3.0 or less. The deodorant composition according to claim 1 or 2, containing 0.05% by mass or more and 5% by mass or less of component (a). The deodorant composition according to any one of claims 1 to 3, further comprising, as component (c), an organic solvent having a ClogP of -2.0 or more and 1.0 or less. The deodorant composition according to claim 4, containing 1% by mass or more and 30% by mass or less of component (c). The deodorant composition according to any one of claims 1 to 5, further comprising an amine compound having a boiling point of 150°C or higher as component (d). The deodorant composition according to claim 6, containing 0.01% by mass or more and 5% by mass or less of component (d). The deodorant composition according to any one of claims 1 to 7, wherein the component (a) is one or more cationic surfactants selected from the group consisting of cationic surfactants represented by the following general formula (a1) and cationic surfactants represented by the following general formula (a2):

[In the formula, R ^1a is an alkyl group having 8 to 18 carbon atoms, and R ^2a , R ^3a and R ^4a are each independently an alkyl group having 1 to 3 carbon atoms, and X ^- is an anion.

[In the formula, R ^5a is an alkyl group having 8 to 18 carbon atoms, and R ^6a and R ^7a are each independently an alkyl group having 1 to 3 carbon atoms, and X ^- is an anion. A deodorizing method comprising contacting an object having a hydrophobic surface with the deodorizer composition according to any one of claims 1 to 8 and wiping the object. 10. The deodorizing method according to claim 9 , wherein the surface free energy of the object is 40 Nm/m or less. The deodorizing method according to claim 9 or 10 , wherein the object is a shoe. The deodorizing method according to any one of claims 9 to 11, wherein the deodorizing composition is impregnated into a nonwoven fabric and then brought into contact with the object. The deodorizing method according to any one of claims 9 to 12, which is for deodorizing bad odors caused by bacteria. A deodorizing wipe comprising the deodorizing composition according to any one of claims 1 to 8 and a nonwoven fabric. The deodorizing wipe material according to claim 14, wherein the nonwoven fabric contains 50% or more by mass of hydrophilic fibers. The deodorizing wiping material according to claim 14 or 15, wherein the impregnation rate of the deodorizing composition relative to the mass of the nonwoven fabric is 200% by mass or more and 600% by mass or less. The deodorizing cleaning material according to any one of claims 14 to 16, wherein the nonwoven fabric is processed into a sheet. 1. A microbicidal composition for wiping an object having a hydrophobic surface, comprising a cationic surfactant [hereinafter referred to as component (a)], a nonionic surfactant containing an ethyleneoxy group and represented by the following general formula (b1), having an HLB of 8 to 10 as determined by Griffin's method [hereinafter referred to as component (b)], and water, wherein the total mass of the contents of components (a) and (b) is 0.1 to 3 mass%, the mass ratio (b)/(a) of the contents of components (a) and (b) is 0.8 to 3.5, and when a nonionic surfactant other than component (b) [hereinafter referred to as component (b')] is contained, the average HLB of the mixed surfactants of components (b) and (b') is 8 to 12.5.
R ^1b O-(A ^1b O) _n -R ^2b (b1)
[In the formula, R ^1b is an aliphatic hydrocarbon group having from 8 to 16 carbon atoms, R ^2b is a hydrogen atom or a methyl group, ^{A 1b} O group is an alkyleneoxy group having from 2 to 4 carbon atoms and containing an ethyleneoxy group, and n is the average number of moles added, which is a number of from 1 to 8.] 1. A disinfectant composition for wiping an object having a hydrophobic surface, comprising a cationic surfactant [hereinafter referred to as component (a)], a nonionic surfactant containing an ethyleneoxy group represented by the following general formula (b1) and having an HLB of 8 to 10 as determined by Griffin's method [hereinafter referred to as component (b)], and water, wherein the total mass of the content of component (a) and the content of component (b) is 0.1 to 3 mass%, the mass ratio (b)/(a) of the content of component (a) to the content of component (b) is 0.8 to 3.5, and when a nonionic surfactant other than component (b) [hereinafter referred to as component (b')] is contained, the average HLB of the mixed surfactant of component (b) and component (b') is 8 to 12.5.
R ^1b O-(A ^1b O) _n -R ^2b (b1)
[In the formula, R ^1b is an aliphatic hydrocarbon group having from 8 to 16 carbon atoms, R ^2b is a hydrogen atom or a methyl group, ^{A 1b} O group is an alkyleneoxy group having from 2 to 4 carbon atoms and containing an ethyleneoxy group, and n is the average number of moles added, which is a number of from 1 to 8.]