Sterilizing agent

Abstract

The present invention relates to a sterilizing agent that exhibits a suitable sterilizing effect despite containing both a cationic surfactant and an anionic surfactant. The present invention also relates to a detergent composition that contains a nonionic surfactant in addition to a cationic surfactant and an anionic surfactant, and that exhibits a sterilizing effect while maintaining detergency. The present invention additionally relates to a method for maintaining the antibacterial effect of a textile product after the start of wearing or use of said textile product.

Description

disinfectant

[0001] This invention relates to a disinfectant. Furthermore, this invention relates to a cleaning agent composition. Furthermore, this invention relates to a method for maintaining the antibacterial effect of textile products after they have been worn or used for the first time.

[0002] Conventionally, cationic surfactants having a specific structure, such as dialkyl quaternary ammonium salts, have been known to have bactericidal effects. Various surfactants are combined with such cationic surfactants to produce bactericidal and cleaning agent compositions.

[0003] For example, Patent Document 1 discloses a liquid laundry detergent composition containing a quaternary ammonium salt having hydrocarbon groups of a specific chain length, an inorganic sulfate, and water, which has excellent deodorizing properties.

[0004] Japanese Patent Publication No. 2017-8137

[0005] The present invention relates to the following [1] to

[15] . [1] A fungicide containing the following component (b) and the following component (d), wherein the mass ratio of component (d) to component (b) (component (d) / component (b)) is 0.1 or more and 10 or less. Component (b): A compound represented by the following general formula (1).

[0006]

[0007] [In the formula, R １ and R ２ Each of these is an alkyl group having 8 carbon atoms, and R ３ and R ４ Each of these is independently selected from the group consisting of alkyl groups having 1 to 3 carbon atoms and hydroxyalkyl groups having 1 to 3 carbon atoms, X － R is a monovalent anion. ] (d) Component: One or more anionic surfactants selected from the group consisting of the following components (d1) and (d2) (d1) Component: An anionic surfactant represented by the following general formula (2) R ５ O-(AO)n-SO ３ Y (2) [wherein, R 5is an aliphatic hydrocarbon group having 10 to 16 carbon atoms, the AO group is an alkyleneoxy group having 2 to 4 carbon atoms, the (AO)n group is a polyoxyalkylene group containing a propyleneoxy group, n is the average number of moles of addition of the AO group and is a number of 0.5 or more and 10 or less, Y is a counter salt that dissociates in water to form a cation, Y ＋ is a hydrogen ion, an alkali metal ion, an alkaline earth metal ion (1 / 2 atom), an ammonium ion or an organic ammonium ion. ] (d2) component: an olefin sulfonic acid having 14 to 18 carbon atoms or a salt thereof

[0008] [2] In the general formula (2), in the (AO)n group, the ratio n1 / n2 of the average number of moles of addition of the ethyleneoxy group (n1) to the average number of moles of addition of the propyleneoxy group (n2) is 0 or more and 4 or less, The bactericide according to [1] above. [3] In the general formula (2), in the (AO)n group, the ratio n1 / n2 of the average number of moles of addition of the ethyleneoxy group (n1) to the average number of moles of addition of the propyleneoxy group (n2) is 0 or more and 0.8 or less, The bactericide according to [1] above. [4] Further containing water, the content of the component (b) is 0.3% by mass or more and 5% by mass or less, and the content of the component (d) is 0.5% by mass or more and 8% by mass or less, The bactericide according to any one of [1] to [3] above.

[0009] [5] A detergent composition containing the following component (b), the following component (c) and the following component (d), and the mass ratio of the component (d) to the component (b) ((d) component / (b) component) is 0.1 or more and 10 or less. (b) component: a compound represented by the above general formula (1) (c) component: a nonionic surfactant (d) component: one or more anionic surfactants selected from the group consisting of the following (d1) component and (d2) component (d1) component: an anionic surfactant represented by the following general formula (2) R ５ O-(AO)n-SO ３ Y (2) [In the formula, R 5(AO) is an aliphatic hydrocarbon group having 10 to 16 carbon atoms, (AO) is an alkylene oxy group having 2 to 4 carbon atoms, (AO)n is a polyoxyalkylene group containing a propylene oxy group, n is the average number of moles of AO groups added, which is between 0.5 and 10, and Y is a counter salt that dissociates in water to become a cation, Y ＋ These include hydrogen ions, alkali metal ions, alkaline earth metal ions (1 / 2 atom), ammonium ions, or organic ammonium ions. (d2) Component: Olefin sulfonic acid or a salt thereof having 14 to 18 carbon atoms [6] The detergent composition according to [5], wherein in the general formula (2), the ratio n1 / n2, which is the ratio of the average number of moles of ethylene oxy groups added (n1) to the average number of moles of propylene oxy groups added (n2) in the (AO)n group, is 0 or more and 4 or less. [7] The detergent composition according to [5], wherein in the general formula (2), the ratio n1 / n2, which is the ratio of the average number of moles of ethylene oxy groups added (n1) to the average number of moles of propylene oxy groups added (n2) in the (AO)n group, is 0 or more and 0.8 or less. [8] A detergent composition according to any one of the above [5] to [7], further containing water, wherein the content of component (b) is 0.3% by mass or more and 5% by mass or less, the content of component (c) is 2% by mass or more and 40% by mass or less, and the content of component (d) is 0.1% by mass or more and 8% by mass or less. [9] A detergent composition according to any one of the above [5] to [8], wherein the component (c) is a nonionic surfactant having a structure represented by the following general formula (c1-1). R ８ (CO) ｍ O-(AO) ｎ -R ９ (c1-1) [In the formula, R ８ R is an aliphatic hydrocarbon group having 8 to 18 carbon atoms, ９ is a hydrogen atom or a methyl group. CO is a carbonyl group, and m is a number of 0 or 1. AO is an alkylene oxy group having 2 to 4 carbon atoms. n is the average number of moles added, and is a number of 1 to 30. ]

[10] A detergent composition according to any one of the above [5] to [9], wherein the mass ratio of component (c) to component (d) (component (c) / component (d)) is 0.01 or more and 20 or less.

[0010]

[11] A method for maintaining the antibacterial effect of a textile product after it has been worn or used, comprising the following steps 1 to 3. Step 1: A step of treating a textile product by bringing it into contact with a treatment solution containing the following component (b) at a concentration of 2 mg / kg to 70 mg / kg, component (c) at a concentration of 50 mg / kg to 1000 mg / kg, component (d) at a concentration of 1 mg / kg to 150 mg / kg, and water, wherein the mass ratio of component (d) to component (b) (component (d) / component (b)) is 0.1 to 10; where, component (b) is a compound represented by the above general formula (1), component (c) is a compound represented by the above general formula (c1-1), and component (d) is one or more anionic surfactants selected from the group consisting of the following components (d2) and (d3). Component (d2): An anionic surfactant represented by the following general formula (2); R ５ O-(AO)n-SO ３ Y (2) [In formula (2), R 5 is an aliphatic hydrocarbon group having 10 to 16 carbon atoms, AO group is an alkylene oxy group having 2 to 4 carbon atoms, n is the average number of moles of AO groups added, which is between 0.5 and 10, and Y is a counter salt that dissociates in water to become a cation, Y ＋These include hydrogen ions, alkali metal ions, alkaline earth metal ions (1 / 2 atom), ammonium ions, or organic ammonium ions. (d3) Component: Internal olefin sulfonate with 16 to 18 carbon atoms. Step 2: A step of drying the textile product obtained in Step 1; and Step 3: A step of wearing or using the textile product obtained in Step 2.

[12] A method for sustaining the antibacterial effect described in

[11] , wherein the treatment liquid is prepared by mixing the detergent composition described in any one of the above [5] to

[10] with water.

[13] A method for sustaining the antibacterial effect described in

[11] or

[12] , further comprising the following Step 4: Step 4: A storage step of storing the textile product obtained in Step 3 after the start of wearing or use until it is ready for rewashing.

[14] A method for sustaining the antibacterial effect described in

[13] , wherein the storage time of the textile product in Step 4 is 10 hours or more.

[15] A method for maintaining the antibacterial effect described in

[13] or

[14] , wherein the textile product in step 4 is stored in a container. Detailed description of the invention

[0011] Sodium dodecylbenzenesulfonate (LAS) is widely used in the field of detergents for textile products. While it might seem that combining a cationic surfactant with LAS would achieve both bactericidal and cleaning effects, in reality, the bactericidal effect is reduced. This is thought to be because the combined use of cationic surfactants and LAS leads to the formation of complexes, resulting in precipitation and crystallization.

[0012] Accordingly, the present invention relates to providing a disinfectant that exhibits a suitable bactericidal effect despite containing both cationic and anionic surfactants. Furthermore, the present invention relates to providing a detergent composition that exhibits a bactericidal effect while maintaining cleaning power, further containing a nonionic surfactant in addition to cationic and anionic surfactants.

[0013] Historically, since textile products are eventually washed again after being worn or used, there has been little concern about whether such textile products maintain their antibacterial properties. However, with the diversification of lifestyles in recent years, it has become common to reuse textile products repeatedly, or to wait until a certain amount of worn or used textile products have accumulated before washing them.

[0014] Accordingly, the present invention relates to a method for maintaining the antibacterial effect of textile products after they have been worn or put into use. Preferably, the method for maintaining the antibacterial effect of textile products after they have been worn or put into use comprises the step of bringing a treatment solution prepared using a textile product cleaning agent composition of a specific composition into contact with the textile product.

[0015] According to the present invention, it is possible to provide a disinfectant that exhibits a suitable bactericidal effect despite containing both cationic and anionic surfactants. Furthermore, according to the present invention, it is possible to provide a detergent composition that exhibits a bactericidal effect while maintaining cleaning power, by further containing a nonionic surfactant in addition to the cationic and anionic surfactants.

[0016] Furthermore, the present invention provides a method for maintaining the antibacterial effect of textile products after they have been worn or used for the first time.

[0017] As a result of the inventors' investigation, they selected a quaternary ammonium salt having a specific alkyl group from among various cationic surfactants, specifically a dialkyl quaternary ammonium salt having two C8 alkyl groups, and found that by combining this with an anionic surfactant having a specific structure, the bactericidal effect of the cationic surfactant was not diminished, thus completing the present invention. The mechanism by which this effect is exerted is not necessarily limited, but is thought to be as follows. It is known that when cationic surfactants and anionic surfactants coexist in water, they form a complex. If the crystallinity of the complex becomes too high, even if the complex adheres to the surface of bacteria, the cationic surfactant, which is the bactericidal component, may detach from the complex on the bacteria and have difficulty penetrating into the inside of the bacteria. It is presumed that the combination of a cationic surfactant having a specific structure and an anionic surfactant having a specific structure in the present invention does not result in a complex formation in water, but the crystallinity of the complex does not become high, and when the complex adheres to the surface of bacteria, the cationic surfactant detaches from the complex and easily penetrates into the inside of the bacteria, thereby exhibiting excellent bactericidal activity against bacteria.

[0018] Furthermore, we discovered that treating textile products after they have been worn or used with a treatment solution prepared using a composition containing such specific surfactants can unexpectedly prolong the antibacterial effect of the textile products after they have been worn or used, thus completing the present invention.

[0019] [Fungicide] The fungicide of the present invention contains the following components (b) and (d). Component (b): Compound represented by the following general formula (1)

[0020]

[0021] [In the formula, R １ and R ２ Each of these is an alkyl group having 8 carbon atoms, and R ３ and R ４ Each of these is independently selected from the group consisting of alkyl groups having 1 to 3 carbon atoms and hydroxyalkyl groups having 1 to 3 carbon atoms, X －It is a monovalent anion.

[0022] (d) Component: One or more anionic surfactants selected from the group consisting of the following components (d1) and (d2) (d1 component: Anionic surfactant represented by the following general formula (2) R ５ O-(AO)n-SO ３ Y (2) [wherein, R 5 (AO) is an aliphatic hydrocarbon group having 10 to 16 carbon atoms, (AO) is an alkylene oxy group having 2 to 4 carbon atoms, (AO)n is a polyoxyalkylene group containing a propylene oxy group, n is the average number of moles of AO groups added, which is between 0.5 and 10, and Y is a counter salt that dissociates in water to become a cation, Y ＋ These include hydrogen ions, alkali metal ions, alkaline earth metal ions (half an atom), ammonium ions, or organic ammonium ions. (d2) Component: Olefin sulfonic acid or its salt having 14 to 18 carbon atoms.

[0023] <Component (b)> The bactericide of the present invention contains a compound represented by the following general formula (1) as component (b). The bactericidal effect is exerted by the inclusion of component (b). Component (b): Compound represented by the following general formula (1)

[0024]

[0025] [In the formula, R １ and R ２ Each of these is an alkyl group having 8 carbon atoms, and R ３ and R ４ Each of these is independently selected from the group consisting of alkyl groups having 1 to 3 carbon atoms and hydroxyalkyl groups having 1 to 3 carbon atoms, X － It is a monovalent anion.

[0026] In general formula (1), R １ and R ２ Each of these is an alkyl group having 8 carbon atoms. Examples of alkyl groups include linear or branched alkyl groups, preferably linear alkyl groups, and more preferably saturated linear hydrocarbon groups having 8 carbon atoms, i.e., octyl groups. １ and R ２R may be an alkyl group having 8 carbon atoms other than an octyl group, but from the viewpoint of further enhancing the bactericidal effect in disinfectants and further enhancing the bactericidal effect while maintaining the cleaning power in detergents, １ and R ２ It is even more preferable that both are octyl groups.

[0027] In general formula (1), R ３ and R ４ Each of these groups is independently selected from the group consisting of alkyl groups having 1 to 3 carbon atoms and hydroxyalkyl groups having 1 to 3 carbon atoms. Specific examples of alkyl groups having 1 to 3 carbon atoms include methyl, ethyl, and propyl groups. Specific examples of hydroxyalkyl groups having 1 to 3 carbon atoms include hydroxymethyl, hydroxyethyl, and hydroxypropyl groups. ３ and R ４ From the viewpoint of further enhancing the bactericidal effect of the composition, the alkyl group is preferably one or more carbon atoms with 3 or fewer carbon atoms, and more preferably a group selected from a methyl group and an ethyl group.

[0028] In general formula (1), X － It is a monovalent anion. As the monovalent anion, a monovalent anion selected from the group consisting of halide ions and alkyl sulfate ions having 1 to 3 carbon atoms is preferred. Specific examples of halide ions are chloride ions and bromide ions, and chloride ions are preferred from the viewpoint of further enhancing the bactericidal effect of the composition. Specific examples of alkyl sulfate ions having 1 to 3 carbon atoms include methyl sulfate ions, ethyl sulfate ions, and propyl sulfate ions, and methyl sulfate ions and ethyl sulfate ions are preferred from the viewpoint of further enhancing the bactericidal effect of the composition.

[0029] <Component (d)> Component (d) in the present invention is one or more anionic surfactants selected from the group consisting of the following components (d1) and (d2). Component (d1): Anionic surfactant represented by the following general formula (2) R ５ O-(AO)n-SO ３ Y (2) [wherein, R 5(AO) is an aliphatic hydrocarbon group having 10 to 16 carbon atoms, (AO) is an alkylene oxy group having 2 to 4 carbon atoms, (AO)n is a polyoxyalkylene group containing a propylene oxy group, n is the average number of moles of AO groups added, which is between 0.5 and 10, and Y is a counter salt that dissociates in water to become a cation, Y ＋ These include hydrogen ions, alkali metal ions, alkaline earth metal ions (half an atom), ammonium ions, or organic ammonium ions. (d2) Component: Olefin sulfonic acid or its salt having 14 to 18 carbon atoms.

[0030] (d1) Regarding component R 5 R is an aliphatic hydrocarbon group having 10 to 16 carbon atoms, and from the viewpoint of further enhancing the bactericidal effect of the composition, the number of carbon atoms is preferably 12 or more. On the other hand, from the same viewpoint, the number of carbon atoms is preferably 14 or less. Therefore, R 5 Preferred aliphatic hydrocarbon groups include one or more aliphatic hydrocarbon groups selected from primary or secondary decyl groups, primary or secondary undecyl groups, primary or secondary dodecyl groups, primary or secondary tridecyl groups, primary or secondary tetradecyl groups, primary or secondary pentadecyl groups, and primary or secondary hexadecyl groups. Furthermore, from the viewpoint of further enhancing the bactericidal properties of the composition, R 5 When the mass of preferred aliphatic hydrocarbon groups is taken as 100% by mass, the mass percentage of aliphatic hydrocarbon groups having 16 carbon atoms is preferably 50% by mass or less, more preferably 40% by mass or less, even more preferably 30% by mass or less, even more preferably 20% by mass or less, and even more preferably 10% by mass or less.

[0031] In general formula (2), the AO group is an alkylene oxy group having 2 to 4 carbon atoms. The alkylene oxy group having 2 to 4 carbon atoms is selected from the ethylene oxy group, the propylene oxy group, and the butylene oxy group. The (AO)n group is a polyoxyalkylene group containing a propylene oxy group. That is, the (AO)n always contains a propylene oxy group and may contain polyoxyalkylene groups of other structures. Polyoxyalkylene groups other than the propylene oxy group include the ethylene oxy group and the butylene oxy group. When the (AO)n group contains both an ethylene oxy group and a propylene oxy group, the ethylene oxy group and the propylene oxy group may be linked in a block or random bond configuration. In the present invention, the (AO)n group being a polyoxyalkylene group containing a propylene oxy group means that R is a precursor of the anionic surfactant of general formula (2). ５ This can mean that the compound is obtained by an addition reaction in which an alkylene oxide with 2 to 4 carbon atoms is added to an OH group, and propylene oxide is always used in this addition reaction.

[0032] In general formula (2), n is the average number of moles of AO groups added, and is a number between 0.5 and 10. In general formula (2), n is preferably 0.6 or more from the viewpoint of further enhancing the bactericidal effect, more preferably 2 or more from the viewpoint of further enhancing the cleaning power, and preferably 6 or less, more preferably 5 or less, from the viewpoint of further enhancing the bactericidal effect.

[0033] In general formula (2), in the (AO)n group, the ratio n1 / n2, which is the ratio of the average number of moles of ethyleneoxy groups added (n1) to the average number of moles of propyleneoxy groups added (n2), is preferably 4 or less, more preferably 3 or less, even more preferably 2 or less, even more preferably 1 or less, even more preferably 0.8 or less, even more preferably 0.6 or less, even more preferably 0.4 or less, even more preferably 0.2 or less, and from the same viewpoint, 0 or more. n1 / n2 may also be 0. The average number of moles of AO groups is R, which is a precursor of the anionic surfactant of general formula (2). ５The number of moles of alkylene oxide with 2 to 4 carbon atoms per mole of OH may be the number of moles of alkylene oxide with 2 to 4 carbon atoms.

[0034] In general formula (2), Y is a counter salt that dissociates in water to become a cation, and Y ＋ Examples of alkali metal ions, alkaline earth metal (half-atom) ions, ammonium ions, or organic ammonium ions. Examples of alkali metal ions include sodium ions and potassium ions. Examples of alkaline earth metal ions include magnesium ions and calcium ions. Examples of organic ammonium salts include alkanolammonium salts containing alkanolamines with 2 to 6 carbon atoms.

[0035] In the present invention, "alkaline earth metal (1 / 2 atom) ion" means an amount of alkaline earth metal ion equivalent to a monovalent ion. That is, in the anionic surfactant represented by general formula (2), "R ５ O-(AO)n-SO ３ － While "a" represents a monovalent anion, alkaline earth metals are divalent cations, so they are expressed as "(1 / 2 atom) ions" to represent the amount of ion equivalent to a monovalent ion.

[0036] (d2) Component is an olefin sulfonate having 14 to 18 carbon atoms or a salt thereof, preferably an internal olefin sulfonate having 14 to 18 carbon atoms or a salt thereof.

[0037] Internal olefin sulfonates, which have 14 to 18 carbon atoms, can be obtained by sulfonating internal olefins, which have 14 to 18 carbon atoms. The internal olefin refers to an olefin in which the double bond is located internally from the 2nd position. Internal olefins can be obtained, for example, by isomerizing 1-olefins obtained by dehydrating 1-alcohols. Sulfonation of internal olefins quantitatively generates β-sartone, and a portion of the β-sartone is converted to γ-sartone and olefin sulfonic acid. These are further converted to hydroxyalkane sulfonates and olefin sulfonates in the neutralization and hydrolysis steps (e.g., J. Am. Oil Chem. Soc. 69, 39 (1992)).

[0038] Here, the hydroxyl group of the obtained hydroxyalkanesulfonate is located inside the alkane chain, and the double bond of the olefin sulfonate is located inside the olefin chain. Furthermore, the obtained product is mainly a mixture of these, and may also contain trace amounts of hydroxyalkanesulfonate having a hydroxyl group at the end of the carbon chain, or α-olefin sulfonate having a double bond at the end of the carbon chain. In this specification, these individual products and mixtures thereof are collectively referred to as internal olefin sulfonates. Hydroxyalkanesulfonates are also referred to as the hydroxy derivative of internal olefin sulfonates (hereinafter also referred to as HAS), and olefin sulfonates are also referred to as the olefin derivative of internal olefin sulfonates (hereinafter also referred to as IOS).

[0039] From the viewpoint of further enhancing the bactericidal effect, internal olefin sulfonates with 16 or 18 carbon atoms are preferred, with internal olefin sulfonates with 16 carbon atoms being preferred.

[0040] Other olefin sulfonates besides internal olefin sulfonates having 14 to 18 carbon atoms include α-olefin sulfonates having 14 to 18 carbon atoms. From the viewpoint of further enhancing the bactericidal effect, α-olefin sulfonates having 14 to 16 carbon atoms are preferred, and α-olefin sulfonates having 14 carbon atoms are more preferred.

[0041] (d2) Examples of salts of component (d2) include alkali metal salts, alkaline earth metal (1 / 2 atom) salts, ammonium salts, or organic ammonium salts. Examples of alkali metal salts include sodium salts and potassium salts. Examples of alkaline earth metal salts include magnesium salts and calcium salts. Examples of organic ammonium salts include alkanolammonium salts containing alkanolamines with 2 to 6 carbon atoms.

[0042] [Composition of the bactericide, etc.] The bactericide of the present invention is a bactericide containing the above-mentioned component (b) and component (d). From the viewpoint of further enhancing the bactericidal effect of component (b), the mass ratio of component (d) to component (b) (component (d) / component (b)) is preferably 0.1 or more, more preferably 0.3 or more, even more preferably 0.5 or more, even more preferably 0.7 or more, even more preferably 0.9 or more, and even more preferably 1.1 or more. On the other hand, from the same viewpoint, the above mass ratio is preferably 10 or less, more preferably 8 or less, even more preferably 6 or less, even more preferably 5 or less, and even more preferably 4 or less.

[0043] When the disinfectant of the present invention contains water, the content of component (b) in the disinfectant is preferably 0.3% by mass or more, more preferably 0.5% by mass or more, and even more preferably 0.7% by mass or more, from the viewpoint of further enhancing the disinfecting effect. On the other hand, from the viewpoint of reducing the amount of waste discharged into the environment, the content of component (b) is preferably 5% by mass or less, more preferably 4% by mass or less, and even more preferably 3% by mass or less.

[0044] When the disinfectant of the present invention contains water, the content of component (d) in the disinfectant is preferably 0.5% by mass or more, more preferably 1% by mass or more, and even more preferably 1.5% by mass or more, from the viewpoint of further enhancing the disinfecting effect. On the other hand, from the same viewpoint, the content of component (d) is preferably 20% by mass or less, more preferably 15% by mass or less, even more preferably 10% by mass or less, even more preferably 8% by mass or less, even more preferably 6% by mass or less, and even more preferably 5% by mass or less.

[0045] In a preferred embodiment where the disinfectant of the present invention contains water, the content of component (b) in the disinfectant is preferably 0.3% by mass or more, more preferably 0.5% by mass or more, even more preferably 0.7% by mass or more, preferably 5% by mass or less, more preferably 4% by mass or less, and even more preferably 3% by mass or less, and the content of component (d) in the disinfectant is preferably 0.5% by mass or more, more preferably 1% by mass or more, even more preferably 1.5% by mass or more, preferably 8% by mass or less, more preferably 6% by mass or less, and even more preferably 5% by mass or less.

[0046] The disinfectant of the present invention may consist of component (b) and component (d), and may further contain a nonionic surfactant. As the nonionic surfactant, component (c), described below, is preferred. The inclusion of a nonionic surfactant is preferable because it efficiently disperses sterilized bacteria present in water or attached to objects in water, making it easier to discharge them out of the system. When the disinfectant of the present invention contains a nonionic surfactant, it is preferable that the disinfectant further contains water, and in this case, the content of the nonionic surfactant in the disinfectant is preferably 2% by mass or more, more preferably 3% by mass or more, and even more preferably 5% by mass or more, from the viewpoint of easily dispersing sterilized bacteria in water. On the other hand, from the viewpoint of further enhancing the bactericidal effect, the content of the nonionic surfactant is preferably 20% by mass or less, more preferably 15% by mass or less, and even more preferably 10% by mass or less.

[0047] The disinfectant of the present invention preferably contains water. The amount of water is usually such that the total composition of the disinfectant of the present invention becomes 100% by mass. Examples of water include deionized water, water containing 0.1 mg / kg to 5 mg / kg of hypochlorite, and tap water.

[0048] The disinfectant of the present invention is preferably in liquid form. The disinfectant of the present invention can be prepared by mixing each essential component with water and optional components as needed.

[0049] The bactericidal agent of the present invention can kill bacteria present in water, for example. It can impart a better bactericidal effect to the target object against bacteria of the genus Moraxella, Escherichia coli, Staphylococcus aureus, Micrococcus, Pseudomonas, or Acinetobacter, as described in Japanese Patent Publication No. 2013-18971. One or more bacteria selected from Moraxella osloensis and Moraxella sp. are more preferable targets of the present invention.

[0050] [Detergent Composition] In one aspect, the present invention provides a detergent composition containing component (b), component (c), and component (d). Here, components (b) and (d) are as described above, and component (c) is a nonionic surfactant. Accordingly, with respect to component (d) in the detergent composition of the present invention, the preferred range of n1 / n2, which is the ratio of the average number of moles of ethyleneoxy groups added (n1) to the average number of moles of propyleneoxy groups added (n2) in the (AO)n group of general formula (2), is also as described above.

[0051] <Component (c)> Component (c) is not particularly limited as long as it is a nonionic surfactant used in the field of detergents for textile products, but from the viewpoint of cleaning performance against dirt, it is preferable to include a nonionic surfactant having a structure represented by the following general formula (c1-1). ８ (CO) ｍ O-(AO) ｎ -R ９ (c1-1) [In the formula, R ８ R is an aliphatic hydrocarbon group having 8 to 18 carbon atoms, ９ is a hydrogen atom or a methyl group. CO is a carbonyl group, and m is a number of 0 or 1. AO is an alkylene oxy group with 2 to 4 carbon atoms. n is the average number of moles added, and is a number of 1 to 30.

[0052] In general formula (c1-1), R ８The number of carbon atoms is 8 or more, preferably 10 or more, more preferably 12 or more, and 18 or less, preferably 16 or less, more preferably 14 or less, from the viewpoint of further improving cleaning performance. In general formula (c1-1), m is a number of 0 or 1, and from the viewpoint of further improving cleaning power, it is preferably 0. In general formula (c1-1), R ９ This is either a hydrogen atom or a methyl group, and from the viewpoint of further enhancing cleaning power, it is preferably a hydrogen atom.

[0053] R ８ R is an aliphatic hydrocarbon group, and from the viewpoint of further enhancing cleaning power, it is preferably a group selected from alkyl groups and alkenyl groups, and from the viewpoint of further enhancing cleaning power, it is more preferably an alkyl group. ８ The aliphatic hydrocarbon group may be a straight-chain aliphatic hydrocarbon group or a branched-chain aliphatic hydrocarbon group. The straight-chain aliphatic hydrocarbon group may be a straight-chain primary aliphatic hydrocarbon group or a straight-chain secondary aliphatic hydrocarbon group. ８ Preferred specific groups include one or more groups selected from primary or secondary octyl groups, primary or secondary decyl groups, primary or secondary nonyl groups, primary or secondary decyl groups, primary or secondary undecyl groups, primary or secondary dodecyl groups, primary or secondary tridecyl groups, primary or secondary tetradecyl groups, primary or secondary pentadecyl groups, primary or secondary hexadecyl groups, primary or secondary heptadecyl groups, primary or secondary octadecyl groups, primary or secondary tetradecenyl groups, primary or secondary hexadecenyl groups, and primary or secondary octadecenyl groups.

[0054] In general formula (c1-1), the AO group is an alkylene oxy group having 2 to 4 carbon atoms, preferably an alkylene oxy group having 2 to 3 carbon atoms, and more preferably an alkylene oxy group selected from the group consisting of ethylene oxy groups and propylene oxy groups. When a nonionic surfactant having the structure represented by general formula (c1-1) (abbreviated as "(c1-1) component") contains multiple AO groups, the multiple AO groups may be ethylene oxy groups, or alkylene oxy groups containing an ethylene oxy group and another alkylene oxy group, for example, an alkylene oxy group having 3 or 4 carbon atoms. For example, an alkylene oxy group containing an ethylene oxy group and a propylene oxy group is also possible. A propylene oxy group is preferred as the other alkylene oxy group. When the multiple AO groups contain an ethylene oxy group and an alkylene oxy group having 3 or 4 carbon atoms, the ethylene oxy group and the alkylene oxy group having 3 or 4 carbon atoms may be bonded in a block-type or random-type bond. The ethyleneoxy group and the propyleneoxy group may be bonded in a block or random manner. If the composition contains both an ethyleneoxy group and a propyleneoxy group, the ethyleneoxy group and the propyleneoxy group may be bonded in a block or random manner. Furthermore, if the detergent composition of the present invention contains both an anionic surfactant represented by general formula (2) and a nonionic surfactant represented by general formula (c1-1), the structures of the AO groups of each may be the same or different.

[0055] In general formula (c1-1), n ​​is the average number of moles of AO groups added, and is a number between 1 and 30. In general formula (c1-1), from the viewpoint of further improving cleaning performance, n is preferably 3 or more, more preferably 5 or more, even more preferably 7 or more, and 30 or less, and from the viewpoint of further improving bactericidal effect, it is preferably 25 or less, more preferably 20 or less, even more preferably 16 or less, even more preferably 14 or less, even more preferably 12 or less, and even more preferably 10 or less. n is the raw material for producing the compound represented by general formula (c1-1), R ８ (CO) ｍThe number of moles of alkylene oxide having 2 to 4 carbon atoms added to 1 mole of O-H may be the number of moles of alkylene oxide having 2 to 4 carbon atoms added after the addition reaction, or it may be the average number of moles of alkylene oxide having 2 to 4 carbon atoms added after the addition reaction. In addition, if the detergent composition of the present invention contains both an anionic surfactant represented by general formula (2) and a nonionic surfactant represented by general formula (c1-1), the values ​​or ranges of n may be the same, overlap, or be different.

[0056] From the viewpoint of further enhancing the bactericidal effect, the weighted average number of moles of alkylene oxide added to all (c) components contained in the washing solution is preferably 5 moles or more, more preferably 6 moles or more, and even more preferably 7 moles or more. On the other hand, from the viewpoint of further enhancing the bactericidal effect, the weighted average number of moles of alkylene oxide added is preferably 25 moles or less, more preferably 20 moles or less, and even more preferably 15 moles or less. In this specification, the weighted average number of moles of alkylene oxide added to all (c1-1) components can be determined as follows: In the composition, (c1-1) has an average number of moles added of x1 moles. １ The component is n by mass%, and the average number of added moles is x2 moles (c1-1). ２ The component is n2% by mass, ... and the average number of added moles is xw moles (c1-1). ｗ When components are present in nw mass%, and the average number of moles added for each component is x1 to xw, the weighted average number of moles of alkylene oxide added for all (c1-1) components contained in the composition, Z, can be calculated using the following formula: Z = (x1 × n1 + x2 × n2 + ... + xw × nw) / (n1 + n2 + ... + nw)

[0057] [Composition of the Detergent Composition, etc.] The detergent composition of the present invention contains component (b), component (c), and component (d). From the viewpoint of further enhancing the bactericidal effect of component (b), the mass ratio of component (d) to component (b) (component (d) / component (b)) is preferably 0.1 or more, more preferably 0.3 or more, even more preferably 0.5 or more, even more preferably 0.7 or more, even more preferably 0.9 or more, and even more preferably 1.1 or more. On the other hand, from the same viewpoint, the mass ratio is preferably 10 or less, more preferably 8 or less, even more preferably 6 or less, even more preferably 5 or less, and even more preferably 4 or less.

[0058] From the viewpoint of further enhancing the bactericidal effect of component (b) and component (d), the mass ratio of component (c) to component (d) (component (c) / component (d)) is preferably 0.01 or more, more preferably 0.1 or more, even more preferably 0.3 or more, and even more preferably 0.5 or more. On the other hand, from the same viewpoint, the mass ratio is preferably 20 or less, more preferably 15 or less, even more preferably 10 or less, even more preferably 8 or less, more preferably 5 or less, and even more preferably 3 or less.

[0059] From the viewpoint of further enhancing the bactericidal effect, the content of component (b) in the detergent composition is preferably 0.3% by mass or more, more preferably 0.5% by mass or more, and even more preferably 0.7% by mass or more. On the other hand, from the viewpoint of further enhancing the cleaning performance, the content of component (b) is preferably 5% by mass or less, more preferably 4% by mass or less, and even more preferably 3% by mass or less.

[0060] From the viewpoint of enhancing the cleaning effect while maintaining the bactericidal effect, the content of component (c) in the detergent composition is preferably 2% by mass or more, more preferably 5% by mass or more, even more preferably 7% by mass or more, and even more preferably 10% by mass or more. On the other hand, from the viewpoint of further enhancing the bactericidal effect, the content of component (c) is preferably 40% by mass or less, more preferably 30% by mass or less, even more preferably 20% by mass or less, and even more preferably 14% by mass or less.

[0061] From the viewpoint of further enhancing the cleaning effect, the content of component (d) in the detergent composition is preferably 0.1% by mass or more, more preferably 1% by mass or more, and even more preferably 2% by mass or more. On the other hand, from the viewpoint of further enhancing the bactericidal effect, the content of component (d) is preferably 20% by mass or less, more preferably 15% by mass or less, even more preferably 10% by mass or less, even more preferably 8% by mass or less, even more preferably 6% by mass or less, and even more preferably 4% by mass or less.

[0062] In a preferred embodiment where the detergent composition of the present invention contains water, the content of component (b) in the detergent composition is preferably 0.3% by mass or more, more preferably 0.5% by mass or more, even more preferably 0.7% by mass or more, preferably 5% by mass or less, more preferably 4% by mass or less, even more preferably 3% by mass or less, the content of component (c) in the detergent composition is preferably 2% by mass or more, more preferably 5% by mass or more, even more preferably 7% by mass or more, even more preferably 10% by mass or more, preferably 40% by mass or less, more preferably 30% by mass or less, even more preferably 20% by mass or less, even more preferably 14% by mass or less, and the content of component (d) in the detergent composition is preferably 0.1% by mass or more, more preferably 1% by mass or more, even more preferably 2% by mass or more, preferably 8% by mass or less, more preferably 6% by mass or less, even more preferably 4% by mass or less.

[0063] The cleaning agent composition of the present invention preferably contains water. The amount of water is usually such that the total composition of the disinfectant of the present invention is 100% by mass. Examples of water include deionized water, water containing 0.1 mg / kg to 5 mg / kg of hypochlorite, and tap water.

[0064] [pH of the detergent composition of the present invention] The pH (at 25°C) of the detergent composition is preferably 5 or higher, more preferably 6 or higher, even more preferably 6.5 or higher, and still more preferably 7 or higher, and from the same viewpoint, preferably 10 or lower, more preferably 9.5 or lower, even more preferably 9 or lower, and still more preferably 8.5 or lower.

[0065] <Method for measuring pH> Connect a pH measuring composite electrode (HORIBA glass ground-joint sleeve type) to a pH meter (HORIBA pH / ion meter F-23) and turn on the power. Use saturated potassium chloride aqueous solution (3.33 mol / L) as the internal solution for the pH electrode. Next, fill 100 mL beakers with pH 4.01 standard solution (phthalate standard solution), pH 6.86 (neutral phosphate standard solution), and pH 9.18 standard solution (borate standard solution), and immerse them in a 25°C constant temperature bath for 30 minutes. Immerse the pH measuring electrode in the standard solution adjusted to constant temperature for 3 minutes and perform calibration in the order of pH 9.18 → pH 4.01 → pH 6.86. Adjust the sample to be measured to 25°C, immerse the electrode of the pH meter in the sample, and measure the pH after 1 minute.

[0066] The detergent composition of the present invention is preferably in liquid form. The detergent composition of the present invention can be prepared by mixing each essential component with water and optional components as needed.

[0067] The cleaning agent composition of the present invention has a bactericidal effect. For example, the cleaning agent composition of the present invention can kill bacteria present in water. As for bacteria, for example, it can impart a better bactericidal effect to the target object against Moraxella species, Escherichia coli, Staphylococcus aureus, Micrococcus species, Pseudomonas species, or Acinetobacter bacteria as described in Japanese Patent Application Publication No. 2013-18971. One or more bacteria selected from Moraxella osloensis and Moraxella sp. are more preferable as targets of the present invention.

[0068] The detergent composition of the present invention can be used for washing and cleaning various textile products. That is, the detergent composition of the present invention may be a detergent composition used for washing textile products. Here, textile products refer to clothing, filters made of fibers, and cleaning tools made of fibers. Examples of clothing include denim pants and jackets, batik, undershirts, T-shirts, dress shirts, blouses, slacks, hats, handkerchiefs, towels, knitwear, socks, underwear, tights, etc. Examples of fibers that make up clothing include hydrophobic fibers such as acrylic, polyester, and nylon, and hydrophilic fibers such as cotton. Examples of filters made of fibers include filters used for filtering water and air purifying filters. Examples of cleaning tools made of fibers include sponges, rags, and mops.

[0069] [Optional Components in Disinfectant and Cleaning Compositions] The disinfectant of the present invention may consist of component (b) and component (d), or component (b), component (c), and component (d), and may contain optional components other than these components. The cleaning composition of the present invention may consist of component (b), component (c), and component (d), and may contain optional components other than these components. The following components may be included as optional components. In the following description of optional components, the disinfectant and cleaning composition of the present invention will be collectively referred to as "the composition according to the present invention."

[0070] [Component (e)] From the viewpoint of further enhancing stability after formulation, the composition according to the present invention preferably contains an alkanolamine having 2 to 6 carbon atoms or a salt thereof as component (e). Examples of alkanolamines having 2 to 6 carbon atoms include one or more compounds selected from monoethanolamine, diethanolamine, methyldiethanolamine, and triethanolamine or a salt thereof, and from the viewpoint of further enhancing stability after formulation, monoethanolamine or a salt thereof is preferred. Component (e) also includes compounds contained in the composition as counterions of component (d) above.

[0071] When the composition according to the present invention contains component (e), from the viewpoint of further improving stability after formulation, the composition may contain component (e) in an amount of preferably 0.4% by mass or more, more preferably 0.6% by mass or more, even more preferably 0.8% by mass or more, even more preferably 1% by mass or more, preferably 15% by mass or less, more preferably 10% by mass or less, even more preferably 7% by mass or less, and even more preferably 5% by mass or less. The content of component (e) in the composition according to the present invention represents the content as an amine.

[0072] [(f) Component] The composition according to the present invention may contain an inorganic salt.

[0073] The inorganic salt may contain one or more inorganic salts selected from alkali metal halides, alkali metal sulfates, alkaline earth metal halides, and alkaline earth metal sulfates. Examples of alkali metal halides include sodium chloride and potassium chloride. Examples of alkali metal sulfates include sodium sulfate and potassium sulfate. Examples of alkaline earth metal halides include calcium chloride and magnesium chloride. Examples of alkaline earth metal sulfates include magnesium sulfate.

[0074] The content of component (f) in the composition according to the present invention is preferably 2% by mass or less, more preferably 1.5% by mass or less, even more preferably 1% by mass or less, and even more preferably 0.5% by mass or less. On the other hand, the lower limit is preferably an amount greater than 0% by mass, and more preferably 0.01% by mass or more. The content of component (f) in the composition according to the present invention can be calculated as the amount of component (f) blended.

[0075] [Component (g)] Component (g) is a fatty acid having 12 to 24 carbon atoms or a salt thereof. Component (g) may be included in the detergent composition of the present invention because it can further enhance the cleaning performance. A fatty acid having 12 to 24 carbon atoms or a salt thereof is a compound having an aliphatic hydrocarbon group having 11 to 23 carbon atoms as a hydrophobic group and a carboxylic acid or a salt thereof as a hydrophilic group. More specifically, components (g) include lauric acid, myristic acid, palmitic acid, palmitoleic acid, stearic acid, oleic acid, elaidic acid, linoleic acid, linolenic acid, or salts thereof. Component (g) may be included in the detergent composition of the present invention as an acid or as a salt. The content of component (g) in the detergent composition of the present invention is preferably 0.1% by mass or more, more preferably 0.2% by mass or more, even more preferably 0.4% by mass or more, and even more preferably 0.6% by mass or more, from the viewpoint of further improving the cleaning performance, and preferably 10% by mass or less, more preferably 7% by mass or less, even more preferably 5% by mass or less, and even more preferably 3% by mass or less, from the viewpoint of further improving the stability after compounding. The content of component (g) shall be expressed as the content converted to the acid type.

[0076] [Component (h)] Component (h) in the present invention is one or more compounds selected from monovalent to tetravalent carboxylic acids or hydroxycarboxylic acids (excluding those containing a nitrogen atom) having a hydrocarbon group with 1 to 6 carbon atoms, or salts thereof.

[0077] Specifically, preferred components (h) include glycolic acid, lactic acid, malonic acid, succinic acid, maleic acid, malic acid, tartaric acid, citric acid (mp 153°C), benzoic acid, or salts thereof. From the viewpoint of odor, preferably one or more selected from glycolic acid, citric acid, lactic acid, benzoic acid, or salts thereof is preferred, and more preferably citric acid or a salt thereof. From the viewpoint of further enhancing stability after formulation, the content of component (h) in the composition according to the present invention is preferably 0.1% by mass or more, more preferably 0.5% by mass or more, and from the same viewpoint, 5% by mass or less, more preferably 3% by mass or less. Even if component (h) is contained as a salt, its content shall be calculated as the acid form.

[0078] [Component (j)] The composition according to the present invention may contain an organic solvent having a hydroxyl group as component (j). Component (j) is preferably an organic solvent having a hydroxyl group with a CLogP of -2.0 or more and 2.0 or less. In the present invention, CLogP is calculated using ChemProperty from Perkin Elmer's ChemBio Draw Ultra ver.14.0. A larger CLogP value indicates higher hydrophobicity.

[0079] (j) Component is an organic solvent having hydroxyl groups, preferably with CLogP of -2.0 or higher, more preferably -1.8 or higher, even more preferably -1.5 or higher, even more preferably -1.2 or higher, even more preferably -1.0 or higher, even more preferably 0 or higher, even more preferably 0.5 or higher, and preferably 2.0 or lower, more preferably 1.8 or lower, and even more preferably 1.5 or lower, from the viewpoint of storage stability.

[0080] (j) The component may be one or more organic solvents selected from the following components (j1) to (j4): (j1) Component: Monohydric alcohol having 2 to 6 carbon atoms (j2) Component: Alcohol having 2 to 12 carbon atoms and being dihydric to dodechydric (j3) Component: Organic solvent having hydrocarbon groups, ether groups, and hydroxyl groups having 1 to 8 carbon atoms (however, hydrocarbon groups exclude aromatic groups) (j4) Component: Organic solvent having aromatic groups, ether groups, and hydroxyl groups, which may be partially substituted

[0081] Specific examples of components (j1) to (j4) are shown below. The numbers in parentheses are the calculated values ​​(CLogP) for each component obtained using the above ChemProperty.

[0082] (j1) Examples of monohydric alcohols having 2 to 6 carbon atoms that are component (j1) include ethanol (-0.24), 1-propanol (0.29), 2-propanol (0.07), and phenol (1.48).

[0083] (j2) Examples of alcohols having 2 to 12 carbon atoms and a valency of 2 to 12 include 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), and glycerin (-1.5).

[0084] (j3) Component, an organic solvent having hydrocarbon groups, ether groups, and hydroxyl groups having 1 to 8 carbon atoms (however, hydrocarbon groups exclude aromatic groups), for example, diethylene glycol monomethyl ether (-0.78), triethylene glycol monomethyl ether (-0.96), diethylene glycol monoethyl ether (-0.39), diethylene 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 ( Examples include 1-methoxy-2-propanol (-0.03), 1-ethoxy-2-propanol (-0.30), 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), 1-pentylglyceryl ether (0.54), 2-pentylglyceryl ether (1.25), 1-octylglyceryl ether (2.1), and 2-ethylhexylglyceryl ether (2.0).

[0085] (j4) Examples of organic solvents having aromatic groups, ether groups, and hydroxyl groups, which may be partially substituted, include 2-phenoxyethanol (1.2), diethylene glycol monophenyl ether (1.25), triethylene glycol monophenyl ether (1.08), polyethylene glycol monophenyl ether with an average molecular weight of approximately 480 (cannot be calculated), 2-benzyloxyethanol (1.1), and diethylene glycol monobenzyl ether (0.96).

[0086] (j) Component is preferably one or more selected from phenoxyethanol, diethylene glycol monobutyl ether, ethanol, propylene glycol, and ethylene glycol, more preferably one or more selected from phenoxyethanol, diethylene glycol monobutyl ether, propylene glycol, and ethanol, even more preferably one or more selected from phenoxyethanol, diethylene glycol monobutyl ether, and ethanol, and even more preferably one or more selected from phenoxyethanol and diethylene glycol monobutyl ether.

[0087] The composition according to the present invention contains component (j) in an amount preferably 0.5% by mass or more, more preferably 1.0% by mass or more, even more preferably 1.5% by mass or more, even more preferably 3% by mass or more, even more preferably 4% by mass or more, and preferably 10% by mass or less, more preferably 9.5% by mass or less, even more preferably 9.0% by mass or less, even more preferably 7.0% by mass or less, and even more preferably 6% by mass or less, from the viewpoint of storage stability, foam dissipation, and suppression of damp odor.

[0088] [Component (k)] Component (k) is a soil-releasing agent. The term "soil-releasing agent" is sometimes used to refer to a dirt-releasing agent. Soil-releasing agents are known as compounds that, when applied to textile products before use such as wearing, allow for better removal of dirt from the textile product during post-use washing, even if dirt adheres to the textile product during use. In the composition according to the present invention, using a soil-releasing agent as one of the components included in the detergent composition allows for efficient simultaneous cleaning of the textile product and application of the soil-releasing agent to the textile product.

[0089] Component (k) includes, for example, one or more polysaccharide derivatives having one or more groups selected from a cationic group and a hydrocarbon group having 1 to 18 carbon atoms as component (k1), one or more polymers having one or two units selected from alkylene terephthalate units and alkylene isophthalate units, and an oxyalkylene unit as component (k2), and one or more polyalkylene imine polymers having a polyoxyalkylene group as component (k3), and a polymer selected from two or more monomers having one or more hydrophilic groups selected from monomers having a cationic group, a polyoxyalkylene group, a carboxyl group or a salt thereof, a sulfonic acid group or a salt thereof, a sulfate ester group or a salt thereof, and a polymer selected from two or more monomers having one or more hydrophobic groups selected from aliphatic hydrocarbon groups having 3 to 18 carbon atoms, an aromatic hydrocarbon group, and a cycloalkyl group.

[0090] Component (k1) is one or more polysaccharide derivatives having one or more groups selected from hydrocarbon groups and cationic groups having 1 to 18 carbon atoms. Component (k1) in the composition according to the present invention is characterized by being a polysaccharide derivative in which one or more groups selected from cationic groups and hydrocarbon groups having 1 to 18 carbon atoms are bonded directly or via a linking group to a group obtained by removing a hydrogen atom from the hydroxyl group of a polysaccharide or derivative thereof, which is a precursor compound of component (k1). Note that the phrase "one or more groups selected from cationic groups and hydrocarbon groups having 1 to 18 carbon atoms are bonded directly or via a linking group to a group obtained by removing a hydrogen atom from the hydroxyl group of a polysaccharide or derivative thereof" does not include bonding modes in which a cationic atom of a cationic group, such as a nitrogen cation, is directly covalently bonded to the oxygen atom of the hydroxyl group of the polysaccharide or derivative thereof.

[0091] Examples of polysaccharides include one or more polysaccharides selected from cellulose, guar gum, or starch. Component (k1) is a polysaccharide derivative, but a polysaccharide derivative can be used as a precursor compound to obtain it. That is, component (k1) may be a derivative of a polysaccharide derivative. Examples of polysaccharide derivatives that are precursor compounds of component (k1) include polysaccharide derivatives in which some or all of the hydrogen atoms of the hydroxyl group of the polysaccharide are substituted with a hydroxyalkyl group having 1 to 4 carbon atoms (hereinafter also referred to as a hydroxyalkyl substituted product). The hydroxyalkyl group having 1 to 4 carbon atoms is preferably a hydroxyalkyl group having 2 to 4 carbon atoms. Examples of hydroxyalkyl groups having 2 to 4 carbon atoms include one or more groups selected from hydroxyethyl, hydroxypropyl, and hydroxybutyl groups, with one or more groups selected from hydroxyethyl and hydroxypropyl groups being preferred. The (k1) component may be a compound obtained by introducing one or more groups selected from hydrocarbon groups and cationic groups having 1 to 18 carbon atoms into a polysaccharide or polysaccharide derivative selected from one or more polysaccharides selected from cellulose, guar gum, or starch, or from hydroxyalkyl substituted products thereof.

[0092] The (k2) component is a polymer having one or two units selected from alkylene terephthalate units and alkylene isophthalate units, as well as oxyalkylene units. Examples of alkylene terephthalate units include one or more selected from ethylene terephthalate units, propylene terephthalate units, and butylene terephthalate units, with ethylene terephthalate units being preferred among these. Examples of alkylene isophthalate units include one or more selected from ethylene isophthalate units, propylene isophthalate units, and butylene isophthalate units, with ethylene isophthalate units being preferred among these. Examples of polyoxyalkylene units include one or more selected from polyoxyethylene units, polyoxypropylene units, and polyoxyethylene polyoxypropylene units.

[0093] The molar ratio of oxyalkylene units to one or more units selected from alkylene terephthalate units and alkylene isophthalate units, which is (number of moles of oxyalkylene units) / (number of moles of one or more units selected from alkylene terephthalate units and alkylene isophthalate units), is preferably 0.6 or less, more preferably 0.5 or less, even more preferably 0.4 or less, and preferably 0 or more, and more preferably 0.1 or more, from the viewpoint of further improving cleaning performance.

[0094] The weight-average molecular weight of component (k2) is preferably 300 or more, more preferably 500 or more, even more preferably 1000 or more, and preferably 20000 or less, and more preferably 15000 or less, from the viewpoint of further improving adsorption to textile products and thereby improving the cleanability of dirt attached to textile products after use. Note that the weight-average molecular weight of component (k2) is the value obtained by measuring the value using GPC (gel permeation chromatography) with THF (tetrahydrofuran) as the solvent and converting it based on the calibration curve for PEG (polyethylene glycol).

[0095] Component (k3) is a polyalkyleneimine polymer having polyoxyalkylene groups. The oxyalkylene group of the polyoxyalkylene group can be one or more groups selected from oxyalkylene groups having 2 to 3 carbon atoms, specifically oxyethylene groups and oxypropylene groups. The alkylene group of the polyalkyleneimine can be an alkylene group having 2 to 6 carbon atoms. More specifically, it can be one or more groups selected from ethylene groups and butylene groups having various bonding modes. The number of polyoxyalkylene groups bonded to the polyalkyleneimine is preferably an average of 3 to 100 polyoxyalkylene groups bonded to each active hydrogen atom of the polyalkyleneimine. The weight-average molecular weight of the polyalkylene imine polymer is preferably 300 or more, more preferably 500 or more, even more preferably 1000 or more, preferably 1,000,000 or less, more preferably 500,000 or less, and even more preferably 100,000 or less, from the viewpoint of further improving the cleaning ability of dirt attached to textile products.

[0096] Examples of compounds of (k4) include the compounds described in Japanese Patent Publication No. 2007-247126. More specifically, the present invention provides a fiber stain-removing agent comprising a polymer having the following constituent units (k4A) and (k4B), wherein the content of constituent unit (k4A) in the polymer is 1 to 99% by weight, the content of constituent unit (k4B) is 1 to 50% by weight, and which also has an arbitrary constituent unit (k4C), and having a weight-average molecular weight of 2,000 to 300,000, and a method for treating fibers comprising treating fibers in an aqueous solution containing this stain-removing agent and adjusted to a pH of 2 to 9. (k4A) A constituent unit derived from an unsaturated bond-containing monomer having at least one amino group selected from primary to tertiary amino groups. (k4B) A constituent unit derived from an unsaturated bond-containing monomer having at least one hydrophobic group selected from linear, branched, or cyclic alkyl or alkenyl groups having 4 to 22 carbon atoms, or from arylalkyl groups or aryl groups, and not having primary to tertiary amino groups.

[0097] The polymer that can be incorporated into the composition according to the present invention can preferably be obtained by copolymerizing monomer (k4A) and monomer (k4B). In addition to monomer (k4A) and monomer (k4B), an unsaturated bond-containing monomer (hereinafter referred to as monomer (k4C)) that can copolymerize with monomer (k4A) and monomer (k4B) may also be copolymerized to the extent that the effects of the present invention are not impaired.

[0098] Examples of monomers (k4A) include (meth)acrylic acid esters, (meth)acrylamides, styrenes, diallyl compounds, etc., having an amino group. Here, "(meth)acrylic" means acrylic or methacrylic. Examples of monomers (k4B) include at least one selected from (meth)acrylic acid esters, (meth)acrylamides, vinyl esters and vinyl ethers, and styrenes, having a linear, branched, or cyclic alkyl or alkenyl group, or an arylalkyl group, having 4 to 22 carbon atoms, preferably 8 to 22 carbon atoms, more preferably 12 to 22 carbon atoms. Examples of monomers (k4C) include (meth)acrylic acid esters or (meth)acrylamides having a hydroxyalkyl group with 1 to 22 carbon atoms, (meth)acrylic acid esters having a polyalkylene (alkylene group with 1 to 8 carbon atoms; linear or branched) oxide chain, (meth)acrylic acid esters of polyhydric alcohols, acrylamides, vinyl compounds having a carboxyl group, vinyl compounds having a sulfonic acid group, etc.

[0099] The polymer in this invention contains 50% by weight or more of the constituent unit (k4A) relative to the total weight of the constituent units constituting the polymer. From the viewpoint of adsorption, 60% by weight or more is preferred, and 70% by weight or more is more preferred. The upper limit is 99% by weight or less, 95% by weight or less is preferred, and 90% by weight or less is more preferred. It also contains 1% by weight or more of the constituent unit (k4B), 3% by weight or more is preferred, 5% by weight or more is more preferred, and 10% by weight or more is even more preferred. The upper limit is 50% by weight or less, 45% by weight or less is preferred. The copolymerization amount of these monomers (k4C) is preferably 0 to 49% by weight, more preferably 0 to 40% by weight, and even more preferably 0 to 30% by weight, relative to the total amount of monomers. From the viewpoint of ease of controlling adsorption / desorption to fibers, the weight-average molecular weight of the polymer in this invention is 2,000 to 30,000, and preferably 2,000 to 20,000.

[0100] Furthermore, the weight-average molecular weight (Mw) of the polymer in this invention is determined by gel permeation chromatography (GPC). The eluent is one of the following: water, alcohol, chloroform, dimethylformamide, tetrahydrofuran, acetonitrile, or a combination of these solvents. The molecular weight is expressed in terms of polyethylene oxide or polystyrene. The polymer structure can be random, grafted, or block-type, but random or grafted structures are preferred, with random structures being more preferred.

[0101] [(m) component] The composition according to the present invention may contain an enzyme. As the (m) component, from the viewpoint of further enhancing the cleaning effect, one or more enzymes selected from protease, lipase, and amylase are preferred, and one or more enzymes selected from protease and amylase are more preferred.

[0102] The optimal pH of the protease at 35°C is preferably 4 or higher, more preferably 7 or higher, even more preferably 8 or higher, even more preferably 9 or higher, even more preferably 9.5 or higher, and preferably 12 or lower, even more preferably 11 or lower, from the viewpoint of further enhancing the washing effect. Suitable proteases used in the present invention include serine proteases (EC 3.4.21) and metalloproteases (EC 3.4.17 or EC 3.4.24). Examples of suitable proteases include neutral or alkaline serine proteases such as subtilisin (EC 3.4.21.62).

[0103] The origin of the protease is not limited, but may be of animal, plant, or microbial origin, with those of microbial origin such as bacteria or fungi being preferred. More suitable proteases include chemically or genetically modified mutants of the aforementioned suitable proteases. In one embodiment, the suitable protease may be an alkaline microbial protease and / or a serine protease such as a trypsin-type protease.

[0104] Suitable commercially available proteases from Novozymes A / S include: Alcalase, Duralase, Durazyme, Release, Release Ultra, Savinase, Savinase Ultra, Savinase Evity, Primase, Polarzyme, Kannas, Liquanase, Liquanase Ultra, Liquanase Evity, Ovozyme, Coronase, Coronase Ultra, Coronase Evity, Neutrase, Everlase, Progress Uno, Progress Enzymes sold as Key, Progress Excel, Blaze, Blaze Evity, Blaze Exceed and Esperase, from Danisco / DuPont: Preferenz P, Effectenz P, Excellenz P, Maxate, Maxacal, Maxapem, Purafect, Purafect Prime, Purafect MA, Purafect Ox, Purafect Examples of suitable enzymes include, but are not limited to, enzymes marketed as OxP, Puramax, Properase, Purafast, FN2, FN3, FN4, Excellase, Opticlean, and Optimase; enzymes marketed as Axapem by Gist-Broses N. V.; BLAP (the sequence shown in Figure 29 of U.S. Patent No. 5,352,604) and its variants (Henkel AG) by Henkel AG; and enzymes marketed as Lavergy Pro by BASF. Alkaline proteases and their variants described in Japanese Patent No. 3479509 are also preferred.

[0105] The optimal pH of lipase at 35°C is preferably 4 or higher, more preferably 7 or higher, even more preferably 8 or higher, even more preferably 9 or higher, even more preferably 9.5 or higher, and preferably 12 or lower, more preferably 11 or lower, from the viewpoint of further enhancing the washing effect.

[0106] Suitable lipases used in the present invention include, for example, triacylglycerol lipase (EC 3.1.1.3), phospholipase A2 (EC 3.1.1.4), lysophospholipase (EC 3.1.1.5), monoglyceride lipase (EC 3.1.1.23), galactolipase (EC 3.1.1.26), phospholipase A1 (EC 3.1.1.32), and lipoprotein lipase (EC 3.1.1.34). Examples include lipases and cutinases from the genera Bacillus, Thermomyces, Pseudomonas, Humicola, and Streptomyces, and furthermore, chemically or genetically modified mutants of these enzymes may also be used. Suitable commercially available lipases include, but are not limited to, those sold by Novozymes A / S as Lipolase, Lipex, Lipex Evity, Lipolex, and Lipoclean, and those sold by Danisco / DuPont as Preferenz L, Lumafast, and Lipomax.

[0107] The optimal pH of amylase at 35°C is preferably 4 or higher, more preferably 7 or higher, even more preferably 8 or higher, even more preferably 9 or higher, even more preferably 9.5 or higher, and preferably 12 or lower, and more preferably 11 or lower, from the viewpoint of further enhancing the washing effect.

[0108] Suitable amylases used in the present invention include α-amylase (EC 3.2.1.1), β-amylase (EC 3.2.1.2), and / or glucoamylase (EC 3.2.1.3). Examples of suitable amylases include neutral or alkaline α-amylase, preferably of microorganismal origin such as bacteria or fungi. Examples of neutral or alkaline amylases include those derived from Bacillus licheniformis, Bacillus amyloliquefaciens, Bacillus stearothermophilus, Bacillus subtilis, or other species of the genus Bacillus, as well as their chemically or genetically modified mutants. Suitable commercially available amylases include, but are not limited to, those sold by Novozymes A / S as Duramyl, Termamyl, Termamyl Ultra, Fungamyl, Steinzyme, Steinzyme Plus, Amplify, Amplify Prime, Natalase, Supramyl, Liquozyme X, and BAN, and those sold by Danisco / DuPont as Preferenz S, Effectenz S, Rapidase, Puraster, and Powerase.

[0109] From the viewpoint of further enhancing the cleaning effect, the enzyme content in the composition 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, and preferably 2% by mass or less, more preferably 1.5% by mass or less, and even more preferably 1% by mass or less, in terms of protein content.

[0110] [Component (n)] Examples of enzyme stabilizers that constitute component (n) include boron compounds, calcium ion sources (calcium ion supply compounds), and bihydroxy compounds. Suitable examples of boron compounds include borax, boric acid, and sodium borate; suitable examples of calcium ion sources include calcium chloride and calcium acetate; and suitable examples of bihydroxy compounds include glycerin, 1,2-hexanediol, 1,2-dodecanediol, glucose, sorbitol, and maltose. Among these, calcium chloride is particularly advantageous in terms of economic efficiency. The composition according to the present invention contains 0.01 to 3% by weight of component (n), which is an enzyme stabilizer, preferably 0.01 to 2% by weight, and more preferably 0.01 to 0.5% by weight.

[0111] [Component (o)] The composition according to the present invention may contain a tertiary amine compound having one to two aliphatic hydrocarbon groups having 8 to 18 carbon atoms, or an acid salt thereof, which is component (o). Component (o) can prevent color fading of colored clothing by trapping chlorine contained in tap water, for example, in a detergent composition. Examples of tertiary amine compounds having one to two aliphatic hydrocarbon groups having 8 to 18 carbon atoms, or an acid salt thereof, include one or more compounds selected from tertiary amine compounds having one aliphatic hydrocarbon group having 10 to 18 carbon atoms and two alkyl groups having 1 to 3 carbon atoms, and tertiary amine compounds having two aliphatic hydrocarbon groups having 8 to 10 carbon atoms and one alkyl group having 1 to 3 carbon atoms, or an acid salt thereof. More specifically, examples include alkyl (10 to 18 carbon atoms) dimethylamine, alkyl (10 to 18 carbon atoms) methylethylamine, dialkyl (8 to 10 carbon atoms) methylamine, dialkyl (8 to 10 carbon atoms) ethylamine, or salts thereof. Examples of acids for the salts include inorganic acids such as hydrochloric acid and sulfuric acid, and the above-mentioned component (h). The disinfectant and cleaning agent composition according to the present invention contains 0.001 to 3% by weight of component (o), preferably 0.01 to 2% by weight, and more preferably 0.03 to 0.5% by weight.

[0112] The composition according to the present invention may contain, as other optional components, other components known in the field of detergents for textile products, such as bleaching agents (perborate, bleach activators, etc.), anti-redeposition agents, reducing agents (sulfites, etc.), anti-foaming agents (silicone, etc.), fragrances, colorants, antibacterial agents, etc. (except those that fall under component (b)).

[0113] [Method for sustaining antibacterial effect] The present invention provides a method for sustaining the antibacterial effect of a textile product after it has been worn or used, comprising the following steps 1 to 3. Step 1: A step of contacting a textile product with a treatment solution containing the following component (b) at a concentration of 2 mg / kg to 70 mg / kg, component (c) at a concentration of 50 mg / kg to 1000 mg / kg, component (d) at a concentration of 1 mg / kg to 150 mg / kg, and water, wherein the mass ratio of component (d) to component (b) (component (d) / component (b)) is 0.1 to 10; Step 2: A step of drying the textile product obtained in Step 1; and Step 3: A step of wearing or using the textile product obtained in Step 2.

[0114] In this specification, "sustained antibacterial effect" means that the antibacterial effect persists for a long period of time, for example, from the start of wearing or using a textile product through the period after wearing or using it until the next washing. Whether or not the antibacterial effect persists is determined by the evaluation method described in the examples below.

[0115] <Step 1> Step 1 is a step of treating textile products by bringing a treatment liquid having the composition of the above-described characteristics into contact with them. The treatment liquid used in Step 1 is preferably, for example, one prepared by mixing the above-described detergent composition of the present invention with water, or one prepared by mixing the liquid treatment agent composition for textile products described later with water. The content or blending amount of each component in the treatment liquid is the content or blending amount per 1 kg of treatment liquid.

[0116] (Processing solution) The processing solution used in step 1 contains the following components: (b) at a concentration of 2 mg / kg or more and 70 mg / kg or less; (c) at a concentration of 50 mg / kg or more and 1000 mg / kg or less; (d) at a concentration of 1 mg / kg or more and 150 mg / kg or less; and water, with a composition such that the mass ratio of component (d) to component (b) ((d) / (b)) is 0.1 or more and 10 or less.

[0117] (b) The component is the compound represented by general formula (1), which is the same as the compound represented by general formula (1) in the "[bactericide]" described above.

[0118] In general formula (1), R １ and R ２ Each of these is an alkyl group having 8 carbon atoms. Examples of alkyl groups include linear or branched alkyl groups, preferably linear alkyl groups, and more preferably saturated linear hydrocarbon groups having 8 carbon atoms, i.e., octyl groups. １ and R ２ While it may be an alkyl group with 8 carbon atoms other than an octyl group, from the viewpoint of prolonging the antibacterial effect, R １ and R ２ It is even more preferable that both are octyl groups.

[0119] In general formula (1), R ３ and R ４ Each of these groups is independently selected from the group consisting of alkyl groups having 1 to 3 carbon atoms and hydroxyalkyl groups having 1 to 3 carbon atoms. Specific examples of alkyl groups having 1 to 3 carbon atoms include methyl, ethyl, and propyl groups. Specific examples of hydroxyalkyl groups having 1 to 3 carbon atoms include hydroxymethyl, hydroxyethyl, and hydroxypropyl groups. ３ and R ４ From the viewpoint of sustaining the antibacterial effect for a longer period of time, the alkyl group is preferably one or more carbon atoms with 3 or fewer carbon atoms, and more preferably a group selected from methyl and ethyl groups.

[0120] In general formula (1), X －is a monovalent anion. As the monovalent anion, a monovalent anion selected from the group consisting of halide ions and alkyl sulfate ions having 1 to 3 carbon atoms is preferable. Specific examples of the halide ion are chloride ions and bromide ions, and chloride ions are preferable from the viewpoint of making the antibacterial effect last longer. Specific examples of the alkyl sulfate ion having 1 to 3 carbon atoms include methyl sulfate ion, ethyl sulfate ion, and propyl sulfate ion, and methyl sulfate ion and ethyl sulfate ion are preferable from the viewpoint of making the antibacterial effect last longer.

[0121] The content of the component (b) in the treatment liquid is 2 mg / kg or more, preferably 5 mg / kg or more, more preferably 8 mg / kg or more from the viewpoint of making the antibacterial effect last longer. On the other hand, from the viewpoint of reducing the emission amount to the environment, the content is 70 mg / kg or less, preferably 50 mg / kg or less, more preferably 30 mg / kg or less.

[0122] The component (c) is a compound represented by the general formula (c1-1), which is the same as the compound represented by the general formula (c1-1) in the above-mentioned "[Detergent Composition]".

[0123] In the general formula (c1-1), R ５ has 8 or more, preferably 10 or more, more preferably 12 or more carbon atoms, and 18 or less, preferably 16 or less, more preferably 14 or less carbon atoms from the viewpoint of making the antibacterial effect last longer.

[0124] R ５ is an aliphatic hydrocarbon group, and preferably a group selected from an alkyl group and an alkenyl group, more preferably an alkyl group from the viewpoint of making the antibacterial effect last longer. The aliphatic hydrocarbon group which is R ５ may be a linear aliphatic hydrocarbon group or a branched aliphatic hydrocarbon group. The linear aliphatic hydrocarbon group may be a linear primary aliphatic hydrocarbon group or a linear secondary aliphatic hydrocarbon group. Preferred specific groups of R ５ are the same as the preferred specific groups of R ５ in the above-mentioned "[Detergent Composition]".

[0125] In general formula (c1-1), the AO group is an alkylene oxy group having 2 to 4 carbon atoms, preferably an alkylene oxy group having 2 to 3 carbon atoms, and more preferably an alkylene oxy group selected from an ethylene oxy group and a propylene oxy group. When a nonionic surfactant having the structure represented by general formula (c1-1) contains multiple AO groups, the multiple AO groups may be ethylene oxy groups, or alkylene oxy groups containing an ethylene oxy group and another alkylene oxy group, for example, an alkylene oxy group having 3 or 4 carbon atoms. For example, an alkylene oxy group containing an ethylene oxy group and a propylene oxy group is also possible. The other alkylene oxy group is preferably a propylene oxy group. When the multiple AO groups contain an ethylene oxy group and an alkylene oxy group having 3 or 4 carbon atoms, the ethylene oxy group and the alkylene oxy group having 3 or 4 carbon atoms may be bonded in a block-type or random-type bond. If the material contains both an ethyleneoxy group and a propyleneoxy group, the ethyleneoxy group and the propyleneoxy group may be linked in a block or random manner.

[0126] In general formula (c1-1), m is a number of 0 or 1, and is preferably 0 from the viewpoint of sustaining the antibacterial effect for a longer period of time. In general formula (c1-1), n ​​is the average number of moles of AO groups added, and is a number of 1 to 30. In general formula (c1-1), n ​​is preferably 3 or more, more preferably 5 or more, even more preferably 7 or more, and 30 or less from the viewpoint of sustaining the antibacterial effect for a longer period of time, and similarly preferably 25 or less, more preferably 20 or less, even more preferably 16 or less, even more preferably 14 or less, even more preferably 12 or less, and even more preferably 10 or less. n is R, which is a raw material for producing the compound represented by general formula (c1-1). ５ (CO) ｍ The number of moles of alkylene oxide with 2 to 4 carbon atoms added to 1 mole of O-H may be one mole, or it may be the average number of moles of alkylene oxide with 2 to 4 carbon atoms added after the addition reaction.

[0127] In general formula (c1-1), R ５This is either a hydrogen atom or a methyl group, and from the viewpoint of prolonging the antibacterial effect, a hydrogen atom is preferred.

[0128] The content of component (c) in the treatment solution is 50 mg / kg or more, preferably 70 mg / kg or more, more preferably 80 mg / kg or more, and even more preferably 90 mg / kg or more, from the viewpoint of sustaining the antibacterial effect for a longer period of time. From a similar viewpoint, the content is 1000 mg / kg or less, preferably 500 mg / kg or less, and more preferably 300 mg / kg or less.

[0129] The water used in the treatment solution can be deionized water (sometimes called ion-exchanged water) or water to which sodium hypochlorite has been added at a rate of 1 mg / kg to 5 mg / kg. Tap water can also be used.

[0130] The water content in the processing solution may be the remainder after excluding essential components such as component (b) and other optional components.

[0131] In step 1, the bath ratio, which is expressed as the ratio of the mass of the textile product (kg) to the volume of the treatment solution (liters), i.e., the volume of the treatment solution (liters) / mass of the textile product (kg), is preferably 3 or more, more preferably 5 or more, and even more preferably 10 or more, from the viewpoint of sustaining the antibacterial effect for a longer period of time. Similarly, it is preferably 50 or less, more preferably 40 or less, and even more preferably 30 or less.

[0132] The contact time between the textile product and the treatment solution in step 1 is preferably 1 minute or more, more preferably 5 minutes or more, and even more preferably 10 minutes or more, from the viewpoint of prolonging the antibacterial effect, and preferably 60 minutes or less, more preferably 40 minutes or less, and even more preferably 20 minutes or less, from the viewpoint of economic efficiency.

[0133] The temperature of the treatment solution in step 1 is preferably 0°C or higher, more preferably 4°C or higher, and even more preferably 10°C or higher, from the viewpoint of sustaining the antibacterial effect for a longer period of time. On the other hand, from the viewpoint of reducing the energy required for the treatment, it is preferably 50°C or lower, more preferably 40°C or lower, and even more preferably 30°C or lower.

[0134] As an arbitrary step, in Step 1, a step of reducing the treatment liquid adhering to the fiber product that has been brought into contact with the treatment liquid may be added. Examples of the step of reducing the treatment liquid include a method of centrifugally dehydrating the fiber product, a method of compressing it with a roller or the like, or a method of wringing it by hand.

[0135] The component (d) in the treatment liquid is one or more anionic surfactants selected from the group consisting of the following component (d2) and the following component (d3). By using the component (d) in combination with the above components (b) and (c), the effect of making the antibacterial effect last for a longer time can be further enhanced.

[0136] Component (d2): An anionic surfactant represented by the following general formula (2) Component (d3): An internal olefin sulfonate having 16 to 18 carbon atoms

[0137] The component (d2) is an anionic surfactant represented by the following general formula (2). R ５ O-(AO)n-SO ３ Y (2) [In formula (2), R 5 is an aliphatic hydrocarbon group having 10 to 16 carbon atoms, the AO group is an alkyleneoxy group having 2 to 4 carbon atoms, n is the average number of added moles of the AO group and is a number of 0.5 or more and 10 or less, Y is a counter ion that dissociates in water to become a cation, and Y ＋ is a hydrogen ion, an alkali metal ion, an alkaline earth metal ion (1 / 2 atom), an ammonium ion or an organic ammonium ion. ]

[0138] Regarding the component (d2), R 5 is an aliphatic hydrocarbon group having 10 to 16 carbon atoms, and from the viewpoint of further enhancing the effect of making the antibacterial effect of the composition last for a longer time, the number of carbon atoms is preferably 12 or more. On the other hand, from the same viewpoint, the number of carbon atoms is preferably 14 or less.

[0139] Therefore, R 5Preferred aliphatic hydrocarbon groups include one or more aliphatic hydrocarbon groups selected from primary or secondary decyl groups, primary or secondary undecyl groups, primary or secondary dodecyl groups, primary or secondary tridecyl groups, primary or secondary tetradecyl groups, primary or secondary pentadecyl groups, and primary or secondary hexadecyl groups. Furthermore, from the viewpoint of further enhancing the effect of prolonging the antibacterial effect, R 5 When the mass of preferred aliphatic hydrocarbon groups is taken as 100% by mass, the mass percentage of aliphatic hydrocarbon groups having 16 carbon atoms is preferably 50% by mass or less, more preferably 40% by mass or less, even more preferably 30% by mass or less, even more preferably 20% by mass or less, and even more preferably 10% by mass or less.

[0140] In general formula (2), the AO group is an alkylene oxy group having 2 to 4 carbon atoms. The alkylene oxy group having 2 to 4 carbon atoms is selected from the group consisting of ethylene oxy group, propylene oxy group, and butylene oxy group. If the (AO)n group includes an ethylene oxy group and a propylene oxy group, the ethylene oxy group and the propylene oxy group may be bonded in a block type or a random type. In the treatment solution, the structure of the AO group in the compound represented by general formula (c1-1) and the structure of the AO group in the anionic surfactant represented by general formula (2) may be the same or different.

[0141] In general formula (2), n is the average number of moles of AO groups added, and is a number between 0.5 and 10. In general formula (2), n is preferably 0.6 or more, more preferably 2 or more, from the viewpoint of further enhancing the effect of prolonging the antibacterial effect, and also preferably 6 or less, and more preferably 5 or less, from the same viewpoint. In general formula (2), in the (AO)n group, the ratio n1 / n2, which is the ratio of the average number of moles of ethyleneoxy groups added (n1) to the average number of moles of propyleneoxy groups added (n2), is preferably 4 or less, more preferably 3 or less, even more preferably 2 or less, even more preferably 1 or less, even more preferably 0.8 or less, even more preferably 0.6 or less, even more preferably 0.4 or less, even more preferably 0.2 or less, and from the same viewpoint, 0 or more. n1 / n2 may also be 0. Furthermore, the average number of moles of AO groups added is R related to the general formula (2) above. ５ The number of moles of alkylene oxide with 2 to 4 carbon atoms per mole of OH may be the number of moles of alkylene oxide with 2 to 4 carbon atoms. In the treatment solution, the value or range of n in the compound represented by general formula (c1-1) and the value or range of n in the anionic surfactant represented by general formula (2) may be the same, overlap, or be different.

[0142] In general formula (2), Y is a counter salt that dissociates in water to become a cation, and Y ＋ Examples of alkali metal ions include alkali metal ions, alkaline earth metal (half-atom) ions, ammonium ions, or organic ammonium ions. Examples of alkali metal ions include sodium ions and potassium ions. Examples of organic ammonium salts include alkanol ammonium salts containing alkanolamines with 2 to 6 carbon atoms.

[0143] (d3) Internal olefin sulfonates having 16 to 18 carbon atoms can be obtained by sulfonating an internal olefin having 16 to 18 carbon atoms. The internal olefin refers to an olefin in which the double bond is located internally from the 2nd position. The internal olefin can be obtained, for example, by isomerizing 1-olefin obtained by dehydrating 1-alcohol. When an internal olefin is sulfonated, β-sartone is quantitatively produced, and a portion of the β-sartone is converted into γ-sartone and olefin sulfonic acid, which are further converted into hydroxyalkane sulfonates and olefin sulfonates in the neutralization and hydrolysis steps (for example, J. Am. Oil Chem. Soc. 69, 39 (1992)).

[0144] Here, the hydroxyl group of the obtained hydroxyalkanesulfonate is located inside the alkane chain, and the double bond of the olefin sulfonate is located inside the olefin chain. Furthermore, the obtained product is mainly a mixture of these, and may also contain trace amounts of hydroxyalkanesulfonate having a hydroxyl group at the end of the carbon chain, or α-olefin sulfonate having a double bond at the end of the carbon chain. In this specification, these individual products and mixtures thereof are collectively referred to as internal olefin sulfonates. Hydroxyalkanesulfonates are also referred to as the hydroxy derivative of internal olefin sulfonates (hereinafter also referred to as HAS), and olefin sulfonates are also referred to as the olefin derivative of internal olefin sulfonates (hereinafter also referred to as IOS).

[0145] From the viewpoint of further enhancing the effect of prolonging the antibacterial effect, internal olefin sulfonates having 16 or 18 carbon atoms are preferred. From the viewpoint of further enhancing the effect of prolonging the antibacterial effect, one or more anionic surfactants selected from α-olefin sulfonates with 10 to 18 carbon atoms in the α-olefin portion and internal olefin sulfonates with 14 to 18 carbon atoms are preferred as component (d3).

[0146] (d3) Examples of salts of component (d3) include alkali metal salts, alkaline earth metal (half atom) salts, ammonium salts, or organic ammonium salts. Examples of alkali metal salts include sodium salts and potassium salts. Examples of alkaline earth metal salts include magnesium salts and calcium salts. Examples of organic ammonium salts include alkanolammonium salts containing alkanolamines with 2 to 6 carbon atoms.

[0147] The content of component (d) in the treatment solution is 1 mg / kg or more, preferably 3 mg / kg or more, more preferably 10 mg / kg or more, even more preferably 20 mg / kg or more, and even more preferably 30 mg / kg or more, from the viewpoint of further enhancing the effect of prolonging the antibacterial effect. From a similar viewpoint, it is 150 mg / kg or less, preferably 100 mg / kg or less, and even more preferably 70 mg / kg or less.

[0148] In the treatment solution, the mass ratio of component (d) to component (b) (component (d) / component (b)) is preferably 0.3 or higher, more preferably 0.5 or higher, even more preferably 0.7 or higher, even more preferably 0.9 or higher, and even more preferably 1.1 or higher, from the viewpoint of further enhancing the effect of prolonging the antibacterial effect for a longer period of time. On the other hand, from the same viewpoint, the mass ratio is preferably 8 or lower, and even more preferably 6 or lower.

[0149] <Optional Components> The treatment solution used in step 1 of the present invention may contain components other than (b), (c), (d), and water. Such optional components include components used in treatment agents for textile products, such as cationic surfactants other than component (b), nonionic surfactants other than component (c), foaming agents, enzymes, pH adjusters, stabilizers, fluorescent dyes, fragrances, pigments, preservatives, and solvents. Examples of pH adjusters include alkaline agents and acidic agents. Examples of alkaline agents include alkanolamines such as monoethanolamine, and alkanolamines having 1 to 5 carbon atoms. Examples of acidic agents include organic acids such as citric acid. It is preferable to use pH adjusters so that the pH of the composition according to the present invention falls within the range described later. Among the pH adjusters, alkanolamines such as monoethanolamine are preferred as alkaline agents from the viewpoint of cleaning power and stability. Among the pH adjusters, organic acids such as citric acid are preferred as acidic agents from the viewpoint of cleaning power and stability.

[0150] [pH of the treatment solution] The pH of the treatment solution (at 25°C) is preferably 5 or higher, more preferably 6 or higher, even more preferably 6.5 or higher, even more preferably 7 or higher, and from the same viewpoint, preferably 10 or lower, more preferably 9.5 or lower, even more preferably 9 or lower, and even more preferably 8.5 or lower. The pH of the composition can be measured according to the <Method for measuring pH> in [pH of the cleaning agent composition of the present invention] above.

[0151] (Textile Products) The textile products to be treated in this invention include clothing and non-clothing products. Specifically, these include denim pants and jackets, batik, undershirts, T-shirts, dress shirts, blouses, slacks, hats, handkerchiefs, towels, knitwear, socks, underwear, tights, and other textile products. This invention is particularly useful in embodiments where textile products with color transfer properties are to be treated. The fibers that make up the textile products include hydrophobic fibers such as acrylic, polyester, and nylon, and hydrophilic fibers such as cotton.

[0152] <Step 2> Step 2 is the process of drying the textile product obtained in Step 1. The drying process is the process of reducing the amount of water present in the textile product. Drying can be done by natural drying or by heat drying using a dryer.

[0153] <Step 3> Step 3 is the step of wearing or using the textile product obtained in Step 2. In the present invention, wearing a textile product means putting on a textile product, specifically clothing, and using a textile product means using a textile product, specifically products other than clothing.

[0154] <Optional Steps> The method for sustaining the antibacterial effect of the present invention may include optional steps. An example of an optional step is step 4 below.

[0155] <Step 4> Step 4: Storage process for storing the textile products obtained in Step 3 after the start of wear or use until they are ready for rewashing.

[0156] In this specification, "re-washing of textile products" means washing the product obtained through steps 1 to 3 of the present invention again. The washing during re-washing may be carried out by the operation of step 1 of the present invention, or by an operation other than step 1 of the present invention. An operation other than step 1 of the present invention may be, for example, a process in which component (b) is removed from the processing solution of step 1 and a processing solution containing component (d) is used.

[0157] The storage time for the textile product in step 4 is preferably 1 hour or more, more preferably 3 hours or more, and even more preferably 10 hours or more, from the viewpoint of further enhancing the convenience of clothing use. On the other hand, from the viewpoint of prolonging the antibacterial effect, it is preferably 7 days or less, more preferably 5 days or less, and even more preferably 2 days or less.

[0158] In step 4, the textile products are preferably stored in a container. Examples of containers include a washing machine tub, a laundry basket, various boxes such as cardboard boxes, bags, etc.

[0159] The temperature during storage of the textile product in step 4 is not particularly limited, but is preferably in the range of 5°C to 35°C.

[0160] The humidity during storage of the textile product in step 4 is not particularly limited, but is preferably in the range of 20% RH to 90% RH. Alternatively, the textile product in step 4 may be partially or completely immersed in water or the treatment solution.

[0161] The treatment solution and cleaning agent composition according to the present invention have a bactericidal effect. For example, the treatment solution and cleaning agent composition according to the present invention can kill bacteria present in water. As for bacteria, for example, the bactericidal effect can be best imparted to the target object against Moraxella species, Escherichia coli, Staphylococcus aureus, Micrococcus species, Pseudomonas species, or Acinetobacter species as described in Japanese Patent Application Publication No. 2013-18971. One or more bacteria selected from Moraxella osloensis and Moraxella sp. are more preferable as targets of the present invention.

[0162] [Liquid Treatment Composition for Textile Products] Another embodiment of the present invention is a liquid treatment composition for textile products containing the above-mentioned component (b), component (c), and water. Such a composition of the present invention is a composition for sustaining the antibacterial effect on textile products during wear or use and / or after the start of wear or use. Since the liquid treatment composition for textile products of the present invention contains component (c), which can wash away dirt attached to fibers, it can be used as a cleaning agent composition for textile products.

[0163] <Composition, etc.> From the viewpoint of maintaining the antibacterial effect, the content of component (b) in the liquid treatment agent composition for textile products of the present invention is preferably 0.1% by mass or more, more preferably 0.2% by mass or more, and even more preferably 0.5% by mass or more. On the other hand, from the viewpoint of reducing the amount of waste discharged into the environment, it is preferably 6% by mass or less, more preferably 5% by mass or less, and even more preferably 4% by mass or less.

[0164] The content of component (c) in the composition of the present invention is preferably 5% by mass or more, more preferably 8% by mass or more, and even more preferably 10% by mass or more, from the viewpoint of maintaining the antibacterial effect. On the other hand, from the viewpoint of reducing the amount of waste released into the environment, it is preferably 30% by mass or less, more preferably 28% by mass or less, and even more preferably 25% by mass or less.

[0165] If the composition of the present invention contains component (d), the content of component (d) in the composition of the present invention is preferably 0.5% by mass or more, more preferably 0.8% by mass or more, and even more preferably 1.0% by mass or more, from the viewpoint of improving processing performance. On the other hand, from the viewpoint of reducing the amount of waste discharged to the environment, it is preferably 30% by mass or less, more preferably 20% by mass or less, and even more preferably 15% by mass or less.

[0166] The treatment solution in step 1 may be prepared by mixing the liquid treatment agent composition for textile products with water. The ratio of the liquid treatment agent composition for textile products to water, which is the mixing ratio of the liquid treatment agent composition for textile products (g) / water (liter), is preferably 1 g / 30 L or more, more preferably 5 g / 30 L or more, even more preferably 7 g / 30 L or more, and even more preferably 10 g / 30 L or more. From the same viewpoint, it is preferably 50 g / 30 L, 40 g / 30 L, or 30 g / 30 L.

[0167] With respect to the embodiments described above, the present invention further discloses the following disinfectant, cleaning agent compositions, and methods for maintaining the antibacterial effect of textile products after they have been worn or used.

[0168] <1> A fungicide containing the following components (b) and (d), wherein the mass ratio of component (d) to component (b) (component (d) / component (b)) is 0.1 or more and 10 or less. (b) component: A compound represented by the following general formula (1).

[0169]

[0170] [In the formula, R １ and R ２ Each of these is an alkyl group having 8 carbon atoms, and R３ and R ４ Each of these is independently selected from the group consisting of alkyl groups having 1 to 3 carbon atoms and hydroxyalkyl groups having 1 to 3 carbon atoms, X － R is a monovalent anion. ] (d) Component: One or more anionic surfactants selected from the group consisting of the following components (d1) and (d2) (d1) Component: An anionic surfactant represented by the following general formula (2) R ５ O-(AO)n-SO ３ Y (2) [wherein, R 5 (AO) is an aliphatic hydrocarbon group having 10 to 16 carbon atoms, (AO) is an alkylene oxy group having 2 to 4 carbon atoms, (AO)n is a polyoxyalkylene group containing a propylene oxy group, n is the average number of moles of AO groups added, which is between 0.5 and 10, and Y is a counter salt that dissociates in water to become a cation, Y ＋ The components are hydrogen ions, alkali metal ions, alkaline earth metal ions (1 / 2 atom), ammonium ions, or organic ammonium ions. Component (d2): Olefin sulfonic acid or a salt thereof having 14 to 18 carbon atoms. <2> The bactericide according to <1>, wherein the mass ratio of component (d) to component (b) (component (d) / component (b)) is preferably 0.3 or more, more preferably 0.5 or more, even more preferably 0.7 or more, even more preferably 0.9 or more, and even more preferably 1.1 or more, and the mass ratio is 8 or less, more preferably 6 or less, even more preferably 5 or less, and even more preferably 4 or less. <3> The bactericide according to <1> or <2>, wherein in the general formula (2), the ratio n1 / n2, which is the ratio of the average number of moles of ethyleneoxy groups added (n1) to the average number of moles of propyleneoxy groups added (n2) in the (AO)n group, is 0 or more and 4 or less. <4> The bactericide according to any one of <1> to <3>, wherein in the general formula (2), the ratio of n1 / n2, which is the ratio of the average number of moles of ethyleneoxy groups added (n1) to the average number of moles of propyleneoxy groups added (n2) in the (AO)n group, is 0 or more and 0.8 or less. <5> In the general formula (2), R 5When the total mass of aliphatic hydrocarbon groups is taken as 100% by mass, the proportion of the mass of C16 aliphatic hydrocarbon groups is 50% by mass or less, preferably 40% by mass or less, more preferably 30% by mass or less, even more preferably 20% by mass or less, and even more preferably 10% by mass or less, preferably R 5 A fungicide according to any one of <1> to <4>, wherein R is an aliphatic hydrocarbon group having 12 or more carbon atoms and 14 or fewer carbon atoms. <6> In the above general formula (2), R 5 The fungicide according to any one of <1> to <5>, wherein the fungicide is one or more aliphatic hydrocarbon groups selected from a primary or secondary decyl group, a primary or secondary undecyl group, a primary or secondary dodecyl group, a primary or secondary tridecyl group, a primary or secondary tetradecyl group, a primary or secondary pentadecyl group, and a primary or secondary hexadecyl group. <7> The bactericide according to any one of <1> to <6>, wherein the olefin sulfonic acid having 14 to 18 carbon atoms or a salt thereof is an internal olefin sulfonic acid having 14 to 18 carbon atoms or a salt thereof, preferably an internal olefin sulfonate having 16 or 18 carbon atoms, more preferably an internal olefin sulfonate having 16 carbon atoms, and as a salt, an alkali metal salt, an alkaline earth metal (1 / 2 atom) salt, an ammonium salt, or an organic ammonium salt, and as an alkali metal salt, a sodium salt or a potassium salt, as an alkaline earth metal salt, a magnesium salt or a calcium salt, and as an organic ammonium salt, an alkanolammonium salt containing an alkanolamine and having 2 to 6 carbon atoms. <8> In the general formula (1), R １ and R ２ However, R is a linear or branched alkyl group, preferably a linear alkyl group, more preferably an octyl group, and in general formula (1), ３ and R ４ However, the hydroxyalkyl group having 1 to 3 carbon atoms is a hydroxymethyl group, a hydroxyethyl group, or a hydroxypropyl group, preferably R ３ and R ４The bactericide according to any one of <1> to <7>, wherein the group is preferably selected from a methyl group and an ethyl group. <9> The bactericide according to any one of <1> to <8>, further containing water, wherein the content of component (b) is 0.3% by mass or more and 5% by mass or less, and the content of component (d) is 0.5% by mass or more and 8% by mass or less. <10> The bactericide according to any one of <1> to <9>, wherein the content of component (b) in the bactericide is 0.5% by mass or more, preferably 0.7% by mass or more, 4% by mass or less, preferably 3% by mass or less, and the content of component (d) in the bactericide is 1% by mass or more, preferably 1.5% by mass or more, 6% by mass or less, preferably 5% by mass or less. <11> A detergent composition containing the following component (b), component (c), and component (d), wherein the mass ratio of component (d) to component (b) (component (d) / component (b)) is 0.1 or more and 10 or less. (b) component: A compound represented by the following general formula (1).

[0171]

[0172] [In the formula, R １ and R ２ Each of these is an alkyl group having 8 carbon atoms, and R ３ and R ４ Each of these is independently selected from the group consisting of alkyl groups having 1 to 3 carbon atoms and hydroxyalkyl groups having 1 to 3 carbon atoms, X － is a monovalent anion. ] (c) Component: Nonionic surfactant (d) Component: One or more anionic surfactants selected from the group consisting of the following components (d1) and (d2) (d1) Component: Anionic surfactant represented by the following general formula (2) R ５ O-(AO)n-SO ３ Y (2) [wherein, R 5 (AO) is an aliphatic hydrocarbon group having 10 to 16 carbon atoms, (AO) is an alkylene oxy group having 2 to 4 carbon atoms, (AO)n is a polyoxyalkylene group containing a propylene oxy group, n is the average number of moles of AO groups added, which is between 0.5 and 10, and Y is a counter salt that dissociates in water to become a cation, Y ＋The components are hydrogen ions, alkali metal ions, alkaline earth metal ions (1 / 2 atom), ammonium ions, or organic ammonium ions. Component (d2): Olefin sulfonic acid or a salt thereof having 14 to 18 carbon atoms. <12> The detergent composition according to <11>, wherein the mass ratio of component (d) to component (b) (component (d) / component (b)) is preferably 0.3 or more, more preferably 0.5 or more, even more preferably 0.7 or more, even more preferably 0.9 or more, and even more preferably 1.1 or more, and the mass ratio is 8 or less, more preferably 6 or less, even more preferably 5 or less, and even more preferably 4 or less. <13> The detergent composition according to <11> or <12>, wherein in the general formula (2), the ratio n1 / n2 of the average number of moles of ethyleneoxy groups added (n1) to the average number of moles of propyleneoxy groups added (n2) in the (AO)n group is 0 or more and 4 or less. <14> The detergent composition according to any one of <11> to <13>, wherein in the general formula (2), the ratio n1 / n2, which is the ratio of the average number of moles of ethyleneoxy groups added (n1) to the average number of moles of propyleneoxy groups added (n2) in the (AO)n group, is 0 or more and 0.8 or less. <15> The detergent composition according to any one of <11> to <14>, wherein the olefin sulfonic acid having 14 to 18 carbon atoms or a salt thereof is an internal olefin sulfonic acid having 14 to 18 carbon atoms or a salt thereof, preferably an internal olefin sulfonate having 16 or 18 carbon atoms, more preferably an internal olefin sulfonate having 16 carbon atoms, and the salt is an alkali metal salt, an alkaline earth metal (1 / 2 atom) salt, an ammonium salt, or an organic ammonium salt, the alkali metal salt is a sodium salt or a potassium salt, the alkaline earth metal salt is a magnesium salt or a calcium salt, and the organic ammonium salt is an alkanolammonium salt having 2 to 6 carbon atoms containing an alkanolamine. <16> A detergent composition according to any one of <11> to <15>, further containing water, wherein the content of component (b) is 0.3% by mass or more and 5% by mass or less, the content of component (c) is 2% by mass or more and 40% by mass or less, and the content of component (d) is 0.1% by mass or more and 8% by mass or less.<17> The detergent composition of the present invention, in which the detergent composition contains water, wherein the content of component (b) is 0.3% by mass or more, preferably 0.5% by mass or more, more preferably 0.7% by mass or more, and 5% by mass or less, preferably 4% by mass or less, more preferably 3% by mass or less, and the content of component (c) in the detergent composition is 2% by mass or more, preferably 5% by mass or more, more preferably 7% by mass or more, even more preferably 10% by mass or more, 40% by mass or less, preferably 30% by mass or less, more preferably 20% by mass or less, even more preferably 14% by mass or less, and the content of component (d) in the detergent composition is 0.1% by mass or more, preferably 1% by mass or more, more preferably 2% by mass or more, even more preferably 8% by mass or less, even more preferably 6% by mass or less, and even more preferably 4% by mass or less, as described in any of <11> to <16>. <18> The detergent composition according to any one of <11> to <17>, wherein the component (c) is a nonionic surfactant having a structure represented by the following general formula (c1-1). R. ８ (CO) ｍ O-(AO) ｎ -R ９ (c1-1) [In the formula, R ８ R is an aliphatic hydrocarbon group having 8 to 18 carbon atoms, ９ R is a hydrogen atom or a methyl group. CO is a carbonyl group, and m is a number of 0 or 1. AO is an alkylene oxy group having 2 to 4 carbon atoms. n is the average number of moles added, and is a number of 1 to 30. ] <19> In the above general formula (c1-1), R ８ The number of carbon atoms is 10 or more, preferably 12 or more, and 16 or less, preferably 14 or less, and m is 0, R ９ is a hydrogen atom, R ８ R is a group selected from alkyl groups and alkenyl groups, preferably an alkyl group. ８Preferred specific groups include primary or secondary octyl groups, primary or secondary decyl groups, primary or secondary nonyl groups, primary or secondary decyl groups, primary or secondary undecyl groups, primary or secondary dodecyl groups, primary or secondary tridecyl groups, primary or secondary tetradecyl groups, primary or secondary pentadecyl groups, primary or secondary hexadecyl groups, primary or secondary heptadecyl groups, primary or secondary octadecyl groups, primary or secondary tetradecenyl groups, primary or secondary hexadecenyl groups, and primary or secondary octadecenyl groups. A detergent composition according to any one of <11> to <18>, wherein one or more groups are selected from, the AO group is an alkylene oxy group having 2 to 4 carbon atoms, preferably an alkylene oxy group having 2 to 3 carbon atoms, more preferably an alkylene oxy group selected from the group consisting of an ethylene oxy group and a propylene oxy group, and in the general formula (c1-1), n ​​is 3 or more, preferably 5 or more, more preferably 7 or more, and 25 or less, preferably 20 or less, more preferably 16 or less, even more preferably 14 or less, even more preferably 12 or less, and even more preferably 10 or less. <20> A detergent composition according to any one of <11> to <19>, wherein the mass ratio of component (c) to component (d) (component (c) / component (d)) is 0.01 or more and 20 or less. <21> A detergent composition according to any one of <11> to <20>, wherein the mass ratio of component (c) to component (d) (component (c) / component (d)) is 0.1 or more, preferably 0.3 or more, more preferably 0.5 or more, and 15 or less, preferably 10 or less, more preferably 8 or less, even more preferably 5 or less, and even more preferably 3 or less. <22> A method for maintaining the antibacterial effect of a textile product after it has been worn or used, comprising the following steps 1 to 3. Step 1: A step of treating a textile product by bringing it into contact with a treatment solution containing the following components: (b) at a concentration of 2 mg / kg to 70 mg / kg, (c) at a concentration of 50 mg / kg to 1000 mg / kg, (d) at a concentration of 1 mg / kg to 150 mg / kg, and water, wherein the mass ratio of (d) to (b) ((d) / (b)) is 0.1 to 10; where (b) is a compound represented by the following general formula (1),

[0173]

[0174] [In the formula, R １ and R ２ Each of these is an alkyl group having 8 carbon atoms, and R ３ and R ４ Each of these is independently selected from the group consisting of alkyl groups having 1 to 3 carbon atoms and hydroxyalkyl groups having 1 to 3 carbon atoms, X － is a monovalent anion. ] (c) Component is a compound represented by the following general formula (c1-1), R ５ - (CO) ｍ -O-(AO) ｎ -R ６ (c1-1) [In the formula, R ５ R is an aliphatic hydrocarbon group having 8 to 18 carbon atoms, ６ is a hydrogen atom or a methyl group. CO is a carbonyl group, and m is a number of 0 or 1. AO is an alkylene oxy group having 2 to 4 carbon atoms. n is the average number of moles added, and is a number of 1 to 30. Component (d) is one or more anionic surfactants selected from the group consisting of the following components (d2) and (d3). Component (d2): An anionic surfactant represented by the following general formula (2); R ５ O-(AO)n-SO ３ Y (2) [In formula (2), R 5 is an aliphatic hydrocarbon group having 10 to 16 carbon atoms, AO group is an alkylene oxy group having 2 to 4 carbon atoms, n is the average number of moles of AO groups added, which is between 0.5 and 10, and Y is a counter salt that dissociates in water to become a cation, Y ＋These include hydrogen ions, alkali metal ions, alkaline earth metal ions (half an atom), ammonium ions, or organic ammonium ions. (d3) Component: Internal olefin sulfonate with 16 to 18 carbon atoms. Step 2: A step of drying the textile product obtained in Step 1; and Step 3: A step of wearing or using the textile product obtained in Step 2. <23> A method for maintaining the antibacterial effect of a textile product after the start of wear or use, as described in <22>, wherein the content of component (b) in the treatment solution is 2 mg / kg or more, preferably 5 mg / kg or more, more preferably 8 mg / kg or more, while the content is 70 mg / kg or less, preferably 50 mg / kg or less, more preferably 30 mg / kg or less; the content of component (c) is 50 mg / kg or more, preferably 70 mg / kg or more, more preferably 80 mg / kg or more, even more preferably 90 mg / kg or more, 1000 mg / kg or less, preferably 500 mg / kg or less, more preferably 300 mg / kg or less; and the content of component (d) is 1 mg / kg or more, preferably 3 mg / kg or more, more preferably 10 mg / kg or more, even more preferably 20 mg / kg or more, even more preferably 30 mg / kg or more, 150 mg / kg or less, preferably 100 mg / kg or less, more preferably 70 mg / kg or less. <24> A method for maintaining the antibacterial effect of a textile product after it has been worn or put into use, as described in <22> or <23>, wherein the treatment solution is prepared by mixing the detergent composition described in any of <11> to <20> with water. <25> A method for maintaining the antibacterial effect of a textile product after it has been worn or put into use, as described in any of <22> to <24>, wherein the mass ratio of component (d) to component (b) (component (d) / component (b)) in the treatment solution is 0.3 or more, preferably 0.5 or more, more preferably 0.7 or more, even more preferably 0.9 or more, and even more preferably 1.1 or more, and 8 or less, preferably 6 or less.<26> A method for maintaining the antibacterial effect of a textile product after it has been worn or used, according to any one of <22> to <25>, wherein in the general formula (2), the ratio n1 / n2, which is the ratio of the average number of moles of ethyleneoxy groups added (n1) to the average number of moles of propyleneoxy groups added (n2) in the (AO)n group, is 0 or more and 4 or less. <27> A method for maintaining the antibacterial effect of a textile product after it has been worn or used, according to any one of <22> to <26>, further comprising the following step 4: Step 4: A storage step of storing the textile product obtained in step 3 after it has been worn or used until it is rewashed. <28> A method for maintaining the antibacterial effect of a textile product after it has been worn or used, according to <27>, wherein the storage time of the textile product in step 4 is 1 hour or more, preferably 3 hours or more, more preferably 10 hours or more, and 7 days or less, preferably 5 days or less, more preferably 2 days or less. <29> A method for maintaining the antibacterial effect of a textile product after it has been worn or used, as described in <27> or <28>, wherein the storage time of the textile product in step 4 is 10 hours or more. <30> A method for maintaining the antibacterial effect of a textile product after it has been worn or used, as described in any of <27> to <29>, wherein the textile product in step 4 is stored in a container. <31> A method for maintaining the antibacterial effect of a textile product after it has been worn or used, as described in <30>, wherein the container is a washing machine tub, a laundry basket, a cardboard box or other type of box or bag.

[0175] The present invention will be specifically described below with reference to examples. Note that the following examples are merely illustrative of the present invention and do not imply any limitation.

[0176] [Disinfectant and Cleaning Compositions] <Ingredients> The following ingredients were used in the examples, comparative examples, and formulation examples. Note that the amounts of each ingredient in the table are the amounts of the active ingredients, not the amounts of the product.

[0177] [(b) Component] (b-1): Dioctylethylmethylammonium ethyl sulfate (85% by mass ethanol solution)

[0178] [(c) component] (c-1): In the above general formula (c1-1), R ８ (A) is a lauryl group, m is 0, (AO) is an ethyleneoxy group, n is 10, R９ Compounds of H (c-2): In the above general formula (c1-1), R ８ R is a mixed alkyl group (lauryl group / myristyl group = 7 / 3 (mass ratio)), m is 0, (AO)n is a group obtained by adding 4 moles of propylene oxy to an alcohol with a mixed alkyl group as the hydrocarbon group, and then adding 17 moles of ethylene oxy group (n = 21), R ９ Compounds of H (c-3): In the general formula (c1-1) above, R ８ (A) is a lauryl group, m is 0, (AO) is an ethyleneoxy group, n is 7, R ９ Compounds of H

[0179] [(d) component] (d-1): In the above general formula (2), R 5 (AO)n is a compound obtained by adding a propylene oxide group to dodecyl alcohol at a ratio of 0.6 moles per mole, then esterifying with sulfuric acid, and neutralizing with sodium hydroxide (n=0.6). ＋ Compound (d-2) in which sodium ions are present: Potassium C16 internal olefin sulfonate obtained by the following manufacturing method

[0180] ・Production of C16 internal olefin a1 Internal olefin a1, which will be the raw material for component (d-2), was produced according to the following method. The internal olefin with C16 was produced in accordance with production example C of Japanese Patent Application Publication No. 2014-76988. The double bond distribution of the internal olefin is as follows. In internal olefin a1, the mass percentage of internal olefins with double bonds at the following positions was 1st / 2nd / 3rd / 4th / 5th / 6th / 7th / 8th = 2.3% / 23.6% / 18.9% / 17.5% / 13.7% / 11.2% / 6.4% / 6.4% (total 100 mass%).

[0181] The double bond distribution of the internal olefin a1 was measured by gas chromatography (hereinafter abbreviated as GC). Specifically, the internal olefin was reacted with dimethyl disulfide to form a dithiolated derivative, and then each component was separated by GC. As a result, the proportion of the double bond distribution of the internal olefin was determined from the peak area of ​​each component, and this proportion was taken as the mass proportion. In olefins with 16 carbon atoms, internal olefins with a double bond at position 7 and internal olefins with a double bond at position 8 are structurally indistinguishable, but they become distinguishable when sulfonated. For convenience, the amount of internal olefin with a double bond at position 7 was divided by 2 and shown in each column. The apparatus and analytical conditions used for the measurement are as follows. GC system "HP6890" (manufactured by Hewlett Packard), column "Ultra-Alloy-1HT capillary column" (30 m x 250 μm x 0.15 μm, manufactured by Frontier Labs Co., Ltd.), detector (flame ion detector (FID)), injection temperature 300°C, detector temperature 350°C, He flow rate 4.6 mL / min

[0182] - (d-2) Production The internal olefin a1 described above was subjected to a sulfonation reaction using a thin-film sulfonation reactor with an external jacket, by passing sulfur trioxide gas and cooling water at 20°C through the external jacket of the reactor. ３ The molar ratio of internal olefins was set to 1.09. The obtained sulfonate was added to an alkaline aqueous solution prepared with 1.5 molar times the theoretical acid value of potassium hydroxide, and neutralized at 30°C for 1 hour with stirring. The neutralized product was hydrolyzed by heating at 160°C for 1 hour in an autoclave to obtain a crude product of potassium internal olefin sulfonate with 16 carbon atoms. 300 g of the crude product was transferred to a separatory funnel, 300 mL of ethanol was added, and then 300 mL of petroleum ether was added in batches to extract and remove oil-soluble impurities. At this time, inorganic compounds (main component being potassium sulfate) precipitated at the oil-water interface due to the addition of ethanol were also separated and removed from the aqueous phase by the oil-water separation operation. This extraction and removal operation was performed three times. By evaporating the aqueous phase to dryness, potassium internal olefin sulfonate was obtained.

[0183] (d-3): In the above general formula (2), R 5 (AO)n is a compound obtained by adding propylene oxide to 1 mole of dodecyl alcohol in a ratio of 2 moles, then adding ethylene oxide in a ratio of 2 moles, then esterifying with sulfuric acid, and neutralizing with sodium hydroxide (n=4). ＋ Compounds in which sodium ions are present (d-4): α-olefin sulfonate sodium salt with 14 carbon atoms

[0184] [Component (d')] (d'-1): Sodium dodecylbenzenesulfonate (LAS)

[0185] [Optional ingredients] ・Dioctylmethylamine ・Fatty acid (a mixed fatty acid containing lauric acid and myristic acid in a mass ratio of 7 / 3) ・Monoethanolamine ・Citric acid (used as a 40% by mass aqueous solution) ・Protease ・Amylase ・Fluorescent dye (4,4'-bis(2-sulfostyryl)biphenyl disodium salt (Chinopearl CBS-X, manufactured by BASF)) ・Fragrance composition (Fragrance composition described in paragraph 0061 of Japanese Patent Publication No. 2016-204508) ・Dye (a mixed dye containing the following: Green No. 202 / Yellow No. 203 / Red No. 106 / Blue No. 1 = in a mass ratio of 5 / 1 / 3 / 1) ・Preservative (1,2-benzoisothiazolin-3-one) ・Calcium chloride (used as a 10% by mass aqueous solution) - Butylcarbitol soil release agent (compound obtained in Synthesis Example 1 of Japanese Patent Publication No. 2007-247126)

[0186] Examples 1-14, Comparative Examples 1-3 and Reference Example 1 <Preparation of Bactericides> Using the above-mentioned components, the bactericides shown in Tables 1-3 were prepared by the following method. 90% of the amount of water needed to produce a final mass of 300 g was placed in a 500 ml glass beaker and heated to 40°C in a water bath. A 6 cm diameter Teflon® rod-shaped stirrer bead was placed inside and rotated at 60 r / m with a magnetic stirrer. Any component (c) was added and stirred for 5 minutes. Next, component (d) or component (d') was added, followed by component (b) heated to 40°C, and stirred for another 15 minutes. Next, water was added to produce a final mass of 300 g, and stirred for another 5 minutes.

[0187] Test Example 1 <Evaluation of Bactericidal Activity> The bactericidal activity of each disinfectant prepared using the above-mentioned ingredients was evaluated as follows: (1) Moraxella sp. bacteria isolated from worn clothing were streaked onto a plate with SCD-LP agar (manufactured by Shioya MS Co., Ltd.) and cultured at 37°C for approximately 24 hours. The cultured material was scraped off with a platinum loop and diluted with sterile water to a bacterial concentration of OD600 = 1.0. (2) 0.1 mL of the bacterial solution from (1) was added to 9.9 mL of the test solution (the liquid detergent composition shown in the table diluted with water to a concentration of 1 g / L when in contact with the bacterial cells) and mixed, and contact was allowed for 10 minutes at 20°C. Sterilized tap water was used for all water. (3) The test solution to which the bacteria were in contact in (2) was serially diluted with LP diluent (manufactured by Shioya MS Co., Ltd.), and the number of colonies grown on SCD agar medium (manufactured by Shioya MS Co., Ltd.) was counted by the pour plate method. The bactericidal activity value was calculated using the following formula. In this evaluation, a higher bactericidal activity value indicates a better bactericidal effect. Bactericidal activity value = LogA - LogB A: Average number of bacteria before contact with the test solution B: Average number of bacteria after contact with the test solution

[0188] The composition and evaluation results of each fungicide are shown together in Tables 1 and 2 (Tables 2A and 2B).

[0189]

[0190]

[0191]

[0192] Tables 1 and 2 revealed the following: A comparison of Examples 1-3 and Comparative Example 1 showed that the bactericidal activity of the compositions using the anionic surfactant corresponding to component (d) (Examples 1-3) was higher than that of the composition using LAS, an anionic surfactant not corresponding to component (d) (Comparative Example 1). This indicates that the compositions in Examples 1-3 possess sufficient bactericidal activity as disinfectants. Furthermore, a comparison of Examples 4-14 and Comparative Examples 2-3 confirmed similar results for compositions containing the nonionic surfactant of component (c). Specifically, the compositions using LAS, an anionic surfactant not corresponding to component (d) (Comparative Examples 2-3), exhibited inferior bactericidal activity compared to the compositions containing component (d) (Examples 4-14). The compositions in Examples 4-14, despite containing nonionic surfactants, possessed sufficient bactericidal activity as disinfectants.

[0193] Examples 15-30 <Preparation of Detergent Composition> 90% of the amount of water needed to make a final mass of 300 g was placed in a 500 ml glass beaker and heated to 40°C in a water bath. A 6 cm diameter Teflon® rod-shaped stirrer bead was placed in and rotated at 60 r / m with a magnetic stirrer. Component (c) was added and stirred for 5 minutes. Then component (d) or component (d') was added, then component (b) heated to 40°C was added and stirred for a further 15 minutes. Then water was added to make a final mass of 300 g and stirred for a further 5 minutes.

[0194] Test Example 2 <Evaluation of Cleaning Action> The cleaning action of each of the above cleaning agent compositions was evaluated as follows: (1) Preparation of textile products for cleaning evaluation 1.7 kg of cotton cloth (Cotton 2003 (manufactured by Tanigashira Shoten)) was washed twice cumulatively on the standard course of a fully automatic washing machine (National NA-F702P) (4.7 g of Emulgen (registered trademark) 108 (manufactured by Kao Corporation) during washing, 47 L of water, wash for 9 minutes, rinse twice, spin dry for 3 minutes), and then washed three times cumulatively with water only (47 L of water, wash for 9 minutes, rinse twice, spin dry for 3 minutes), and dried for 24 hours in an environment of 23°C and 45% RH. After that, it was cut to a size of 6 cm x 6 cm.

[0195] (2) Preparation of model sebum-stained fabric A model sebum-stained fabric was prepared by applying a model sebum-stained solution with the following composition to the textile product obtained in (1) Preparation of textile product for washing evaluation above. The model sebum-stained solution was applied to the fabric by printing the artificial stain onto the fabric using a gravure roll coater. The process of applying the model sebum-stained solution to the fabric to produce the model sebum-stained solution was performed using a gravure roll with a cell capacity of 58 cm ３ / m ２ The coating was applied at a speed of 1.0 m / min, with a drying temperature of 100°C and a drying time of 1 min. Afterward, the material was cut into 6 cm x 6 cm pieces.

[0196] *Composition of the model sebum artificial contamination solution: Lauric acid 0.4% by mass, myristic acid 3.1% by mass, pentadecanoic acid 2.3% by mass, palmitic acid 6.2% by mass, heptadecanoic acid 0.4% by mass, stearic acid 1.6% by mass, oleic acid 7.8% by mass, triolein 13.0% by mass, n-hexadecyl palmitate 2.2% by mass, squalene 6.5% by mass, egg white lecithin liquid crystal 1.9% by mass, Kanuma red clay 8.1% by mass, carbon black 0.01% by mass, water residue (total 100% by mass)

[0197] (3) Washing test: Washing was performed using a turgotometer (manufactured by Ueshima Seisakusho). The water used for washing was water obtained by adding calcium chloride and magnesium chloride in a mass ratio of 8:2 to ion-exchanged water and adjusting the hardness to 4°dH. The washing solution was obtained by mixing the textile product washing agent composition with the water used for washing so that the mass ratio of textile product washing agent composition / water used for washing, as described in Table 3, was 30 g / 30 L. 0.6 L of the washing solution and 10 of the above-mentioned model sebum-stained artificial cloths were placed in a 1-liter stainless steel beaker for the washing test. The bath ratio was adjusted to 20 using the above-mentioned textile product for purification evaluation. The temperature of the washing solution was 20°C. The evaluation fibers were washed with a turgotometer at 85 rpm for 10 minutes. After washing, the fibers were dehydrated and then placed in 0.6 L of washing water. Rinsing was performed using a turbometer at 85 rpm for 3 minutes. After rinsing, the fibers were dehydrated again and then dried for 24 hours at 23°C and 45% RH.

[0198] (4) Method for evaluating washability The cloth obtained in the washing test described in (3) above was visually inspected to see how well the dirt was removed.

[0199] Test Example 3 <Evaluation of Bactericidal Activity> The bactericidal activity of each of the above detergent compositions was evaluated using the same method as in Test Example 1. The composition of each detergent composition and the evaluation results are shown together in Table 3 (Table 3A and Table 3B).

[0200]

[0201]

[0202] The following was found from Table 3: The compositions of Examples 15 to 30 were found to be detergent compositions with excellent cleaning and bactericidal properties. The results of evaluating the cleaning properties of Examples 15 to 30 showed that all compositions reduced the degree of soiling of the test cloth compared to the degree of soiling before washing, indicating that they are detergent compositions with excellent cleaning properties. The results of evaluating the cleaning properties of Examples 15 to 18, Examples 19 to 22, and Examples 23 to 26 showed that the cleaning properties improved as the content of component (c) increased.

[0203] Examples of formulations: Table 4 (Tables 4A and 4B) shows examples of formulations of disinfectant or cleaning agent compositions that can obtain the effects of the present invention.

[0204]

[0205]

[0206] Examples 1 to 4 are formulations of the disinfectant of the present invention, and Examples 5 to 14 are formulations of the cleaning agent composition of the present invention. The disinfectant formulations are prepared in the same manner as in Example 1, etc. The cleaning agent composition is prepared in the same manner as in Example 15, etc., except that optional components are added along with the amount of water initially added.

[0207] [Method for sustaining antibacterial effect] <Ingredients> In the example, a detergent composition and treatment solution for textile products were prepared using the following ingredients. Note that the amounts of each ingredient in the table are the amounts of the active ingredients, not the amounts of the product. [(b) Ingredients] (b-1'): Dioctyldimethylammonium chloride (85% by mass aqueous dispersion) (b-2'): Dioctylethylmethylammonium ethyl sulfate (85% by mass ethanol solution) (b-3'): Dioctyldimethylammonium methyl sulfate (85% by mass ethanol solution)

[0208] [(c) component] (c-1'): In the above general formula (c1-1), R ５ The mixed alkyl group is (lauryl group / myristyl group = 7 / 3 (mass ratio)), m is 0, (AO) ｎ However, to an alcohol with a mixed alkyl group as the hydrocarbon group, 4 moles of propyleneoxy are added, followed by 17 moles of ethyleneoxy groups (n=21), R ６ A compound of H. (c-2'): In the above general formula (c1-1), R ５ (A) is a lauryl group, m is 0, (AO) is an ethyleneoxy group, n is 10, R ６ A compound of H. (c-3'): In the general formula (c1-1) above, R ５ (A) is a lauryl group, m is 0, (AO) is an ethylene oxy group, n is 6.5, R ６ It is a compound of H.

[0209] [(d) component] (d-2'): In the above general formula (2), R 5 (AO)n is a compound obtained by adding a propylene oxide group to dodecyl alcohol at a ratio of 0.6 moles per mole, then esterifying with sulfuric acid, and neutralizing with sodium hydroxide (n=0.6). ＋A compound in which the ion is a sodium ion. (d-4'): Potassium internal olefin sulfonate with 16 carbon atoms (As the compound of d-4', the "potassium internal olefin sulfonate with 16 carbon atoms" of (d-2) in the above [bactericide and cleaning agent composition] was used). (d-5'): Production of potassium internal olefin sulfonate with 18 carbon atoms and internal olefin a2 with 18 carbon atoms obtained by the following production method Internal olefin a2 with 18 carbon atoms, which will be the raw material for the above (d-5') component, was produced according to the following method. For the internal olefin with 18 carbon atoms, the internal olefin was produced in accordance with production example D of Japanese Patent Application Publication No. 2014-76988. The double bond distribution of the internal olefin is as follows. In internal olefin a2, the mass percentage of internal olefins with double bonds at the following positions was 1st / 2nd / 3rd / 4th / 5th / 6th / 7th / 8th / 9th = 0.5% / 25.0% / 22.8% / 19.1% / 14.0% / 7.4% / 5.4% / 2.5% / 2.5% (total 100 mass%).

[0210] The double bond distribution of the internal olefin a2 was measured by gas chromatography (hereinafter abbreviated as GC). Specifically, the internal olefin was reacted with dimethyl disulfide to form a dithiolated derivative, and then each component was separated by GC. As a result, the proportion of the double bond distribution of the internal olefin was determined from the peak area of ​​each component, and this proportion was taken as the mass proportion. In olefins with 18 carbon atoms, internal olefins with a double bond at position 8 and internal olefins with a double bond at position 9 are structurally indistinguishable, but they become distinguishable after sulfonation. For convenience, the amount of internal olefin with a double bond at position 8 was divided by 2 and shown in each column. The apparatus and analytical conditions used for the measurement are as follows. GC system "HP6890" (manufactured by Hewlett Packard), column "Ultra-Alloy-1HT capillary column" (30 m x 250 μm x 0.15 μm, manufactured by Frontier Labs Co., Ltd.), detector (flame ion detector (FID)), injection temperature 300°C, detector temperature 350°C, He flow rate 4.6 mL / min

[0211] - Production of (d-5') The internal olefin a2 described above was subjected to a sulfonation reaction using a thin-film sulfonation reactor with an external jacket, by passing sulfur trioxide gas and cooling water at 20°C through the external jacket of the reactor. ３ The molar ratio of internal olefins was set to 1.09. The obtained sulfonate was added to an alkaline aqueous solution prepared with 1.5 molar times the theoretical acid value of potassium hydroxide, and neutralized at 30°C for 1 hour with stirring. The neutralized product was hydrolyzed by heating at 160°C for 1 hour in an autoclave to obtain a crude product of potassium internal olefin sulfonate with 18 carbon atoms. 300 g of the crude product was transferred to a separatory funnel, 300 mL of ethanol was added, and then 300 mL of petroleum ether was added in batches to extract and remove oil-soluble impurities. At this time, inorganic compounds (main component being potassium sulfate) precipitated at the oil-water interface due to the addition of ethanol were also separated and removed from the aqueous phase by the oil-water separation operation. This extraction and removal operation was performed three times. By evaporating the aqueous phase to dryness, potassium internal olefin sulfonate was obtained.

[0212] Examples 31-38 <Preparation of Detergent Compositions and Treatment Solutions for Textile Products> After preparing detergent compositions for textile products by mixing the above-mentioned components, treatment solutions with the compositions shown in Tables 5 and 6 below were prepared by diluting them with tap water from Wakayama City, Wakayama Prefecture, Japan.

[0213] [Method for Evaluating the Durability of Antibacterial Effects of Textile Products] Test Example 1 (Evaluation against Fatty Acid Stains) <Treatment> A plain woven cotton fabric (Cotton 2003, purchased from Tanigashira Shoten) was used as the textile product for evaluation. A 6 x 6 cm piece of the plain woven cotton fabric was treated with the various treatment solutions listed in Tables 5 and 6 as follows to prepare a test cloth for antibacterial effect. 30 g of the plain woven cotton fabric and 600 mL of the treatment solution were placed in a turgotometer (manufactured by Ueshima Seisakusho), treated at 85 rpm, 20°C for 10 minutes, and then dewatered for 1 minute using a small dehydrator Dry-Cyclone BDS-3.0 SBP (manufactured by Beecam Co., Ltd.).

[0214] <Drying> The dewatered test cloth was placed in 600 mL of tap water and rinsed with the turgotometer at 85 rpm, 20°C, for 3 minutes. It was then dewatered for 1 minute in the small spin dryer and allowed to air dry.

[0215] <Wearing or Use> As a model of a textile product after human wear or use, a test cloth was prepared by attaching fatty acids and bacteria to the air-dried test cloth. A methanol solution of 14-methylhexadecanoic acid (manufactured by Larodan AB) was dropped onto 1 g of test cloth so that the amount of 14-methylhexadecanoic acid was approximately 400 μg, and the cloth was air-dried to obtain the treated cloth.

[0216] Moraxella sp. bacteria isolated from used human textile products were streaked onto plates of nutrient agar (Becton Dickinson) and cultured at 37°C for approximately 24 hours. The cultured samples were scraped off with a platinum loop and placed in 10 mL of nutrient agar (Becton Dickinson), and pre-cultured at 37°C and 110 rpm for approximately 20 hours. The bacterial concentration of the pre-cultured medium was estimated by absorbance, and the bacterial concentration was estimated to be approximately 1 × 10⁶. ８ The solution was adjusted to CFU / mL, and 0.2 mL of it was added to 10 mL of nutrient medium and incubated for a further 3 hours at 37°C and 110 rpm. The bacterial concentration of the culture medium was estimated by absorbance, and the bacterial count was 1.0 × 10⁶ using 10-fold diluted nutrient medium. ５ The bacterial solution was adjusted to CFU / mL. 0.2 mL of this bacterial solution was inoculated onto 0.4 g of the treated cloth.

[0217] <Storage> After inoculation, the treated cloth was placed in a petri dish, covered, and left to stand for approximately 20 hours at 37°C for storage.

[0218] <Bacterial Count Measurement> For each treated cloth after the storage process, 20 mL of LP diluent (manufactured by Shioya MS Co., Ltd.) at 25°C was added and mixed for 10 seconds. Then, ultrasound was applied for 10 minutes to extract bacteria. The extract was serially diluted with LP diluent, poured onto SCD agar plate (manufactured by Shioya MS Co., Ltd.), and incubated overnight at 37°C.

[0219] On the other hand, a 6 x 6 cm cotton plain weave cloth was treated and dried without applying fatty acids and bacteria in the same manner as described above. The cloth was then stored in the same manner, and the bacteria were extracted from it in the same manner and incubated overnight at 37°C.

[0220] The number of colonies obtained from each fabric was measured, and the antibacterial activity value (Δlog10) was calculated by subtracting the common logarithm of the number of viable bacteria in each example or comparative example from the common logarithm of the number of viable bacteria in the untreated and undried fabric. In this evaluation, a higher antibacterial activity value indicates a superior antibacterial effect. The results are shown in Table 5.

[0221]

[0222] Table 5 shows that, for fabrics stained with fatty acids, the method of the present invention maintained high antibacterial properties even after 20 hours of storage.

[0223] Test Example 2 (Evaluation of Protein Stains) The evaluation was carried out in the same manner as in Test Example 1 above, except that horse serum (Horse Serum, heat activated, New Zealand origin, manufactured by Thermo Fisher Scientific Co., Ltd.) was used instead of 14-methylhexadecanoic acid in the <Wearing or Use> section. The results are shown in Table 6.

[0224]

[0225] Table 6 shows that the method of the present invention maintained high antibacterial properties even after 20 hours of storage, even on cloths with protein stains.

Claims

1. A bactericide containing the following component (b) and the following component (d), wherein the mass ratio of component (d) to component (b) ((d) component / (b) component) is 0.1 or more and 10 or less. Component (b): A compound represented by the following general formula (1) [In the formula, R １ and R ２ are each independently an alkyl group having 8 carbon atoms, R ３ and R ４ are each independently a group selected from the group consisting of an alkyl group having 1 to 3 carbon atoms and a hydroxyalkyl group having 1 to 3 carbon atoms, and X － is a monovalent anion.]. Component (d): One or more anionic surfactants selected from the group consisting of the following component (d1) and component (d2). Component (d1): An anionic surfactant represented by the following general formula (2) R ５ O-(AO)n-SO ３ Y (2) [In the formula, R 5 is an aliphatic hydrocarbon group having 10 to 16 carbon atoms, the AO group is an alkyleneoxy group having 2 to 4 carbon atoms, the (AO)n group is a polyoxyalkylene group containing a propyleneoxy group, n is the average addition molar number of the AO group and is a number of 0.5 or more and 10 or less, Y is a counter salt that dissociates in water to form a cation, and Y ＋ is a hydrogen ion, an alkali metal ion, an alkaline earth metal ion (1 / 2 atom), an ammonium ion or an organic ammonium ion.]. Component (d2): An olefin sulfonic acid having 14 to 18 carbon atoms or a salt thereof 2. The bactericide according to claim 1, wherein in the general formula (2), the ratio n1 / n2, which is the ratio of the average number of moles of ethyleneoxy groups added (n1) to the average number of moles of propyleneoxy groups added (n2) in the (AO)n group, is 0 or more and 4 or less.

3. The bactericide according to claim 1 or 2, wherein in the general formula (2), the ratio n1 / n2, which is the ratio of the average number of moles of ethyleneoxy groups added (n1) to the average number of moles of propyleneoxy groups added (n2) in the (AO)n group, is 0 or more and 0.8 or less.

4. The disinfectant according to any one of claims 1 to 3, further containing water, wherein the content of component (b) is 0.3% by mass or more and 5% by mass or less, and the content of component (d) is 0.5% by mass or more and 8% by mass or less.

5. A detergent composition containing the following components (b), (c), and (d), wherein the mass ratio of component (d) to component (b) (component (d) / component (b)) is 0.1 or more and 10 or less. (b) component: A compound represented by the following general formula (1). [In the formula, R １ and R ２ Each of these is an alkyl group having 8 carbon atoms, and R ３ and R ４ Each of these is independently selected from the group consisting of alkyl groups having 1 to 3 carbon atoms and hydroxyalkyl groups having 1 to 3 carbon atoms, X － is a monovalent anion. ] (c) Component: Nonionic surfactant (d) Component: One or more anionic surfactants selected from the group consisting of the following components (d1) and (d2) (d1) Component: Anionic surfactant represented by the following general formula (2) R ５ O-(AO)n-SO ３ Y (2) [wherein, R 5 (AO) is an aliphatic hydrocarbon group having 10 to 16 carbon atoms, (AO) is an alkylene oxy group having 2 to 4 carbon atoms, (AO)n is a polyoxyalkylene group containing a propylene oxy group, n is the average number of moles of AO groups added, which is between 0.5 and 10, and Y is a counter salt that dissociates in water to become a cation, Y ＋ These include hydrogen ions, alkali metal ions, alkaline earth metal ions (half an atom), ammonium ions, or organic ammonium ions. (d2) Component: Olefin sulfonic acid or its salt having 14 to 18 carbon atoms.

6. The detergent composition according to claim 5, wherein in the general formula (2), the ratio n1 / n2, which is the ratio of the average number of moles of ethyleneoxy groups added (n1) to the average number of moles of propyleneoxy groups added (n2) in the (AO)n group, is 0 or more and 4 or less.

7. The detergent composition according to claim 5 or 6, wherein in the general formula (2), the ratio n1 / n2, which is the ratio of the average number of moles of ethyleneoxy groups added (n1) to the average number of moles of propyleneoxy groups added (n2) in the (AO)n group, is 0 or more and 0.8 or less.

8. A detergent composition according to any one of claims 5 to 7, further containing water, wherein the content of component (b) is 0.3% by mass or more and 5% by mass or less, the content of component (c) is 2% by mass or more and 40% by mass or less, and the content of component (d) is 0.1% by mass or more and 8% by mass or less.

9. The detergent composition according to any one of claims 5 to 8, wherein the component (c) is a nonionic surfactant having a structure represented by the following general formula (c1-1). ８ (CO) ｍ O-(AO) ｎ -R ９ (c1-1) [In the formula, R ８ R is an aliphatic hydrocarbon group having 8 to 18 carbon atoms, ９ is a hydrogen atom or a methyl group. CO is a carbonyl group, and m is a number of 0 or 1. AO is an alkylene oxy group with 2 to 4 carbon atoms. n is the average number of moles added, and is a number of 1 to 30.

10. The detergent composition according to any one of claims 5 to 9, wherein the mass ratio of component (c) to component (d) (component (c) / component (d)) is 0.01 or more and 20 or less.

11. A method for maintaining the antibacterial effect of textile products after the start of wear or use, comprising the following steps 1 to 3. Step 1: A step of treating a textile product by contacting it with a treatment solution containing the following component (b) at a concentration of 2 mg / kg to 70 mg / kg, component (c) at a concentration of 50 mg / kg to 1000 mg / kg, component (d) at a concentration of 1 mg / kg to 150 mg / kg, and water, wherein the mass ratio of component (d) to component (b) (component (d) / component (b)) is 0.1 to 10; where component (b) is a compound represented by the following general formula (1), [In the formula, R １ and R ２ Each of these is an alkyl group having 8 carbon atoms, and R ３ and R ４ Each of these is independently selected from the group consisting of alkyl groups having 1 to 3 carbon atoms and hydroxyalkyl groups having 1 to 3 carbon atoms, X － is a monovalent anion. ] (c) Component is a compound represented by the following general formula (c1-1), R ５ - (CO) ｍ -O-(AO) ｎ -R ６ (c1-1) [In the formula, R ５ R is an aliphatic hydrocarbon group having 8 to 18 carbon atoms, ６ is a hydrogen atom or a methyl group. CO is a carbonyl group, and m is a number of 0 or 1. AO is an alkylene oxy group having 2 to 4 carbon atoms. n is the average number of moles added, and is a number of 1 to 30. Component (d) is one or more anionic surfactants selected from the group consisting of the following components (d2) and (d3). Component (d2): An anionic surfactant represented by the following general formula (2); R ５ O-(AO)n-SO ３ Y (2) [In formula (2), R 5 is an aliphatic hydrocarbon group having 10 to 16 carbon atoms, AO group is an alkylene oxy group having 2 to 4 carbon atoms, n is the average number of moles of AO groups added, which is between 0.5 and 10, and Y is a counter salt that dissociates in water to become a cation, Y ＋ These include hydrogen ions, alkali metal ions, alkaline earth metal ions (half an atom), ammonium ions, or organic ammonium ions. (d3) Component: Internal olefin sulfonate with 16 to 18 carbon atoms. Step 2: A step of drying the textile product obtained in Step 1; and Step 3: A step of wearing or using the textile product obtained in Step 2.

12. The method for sustaining the antibacterial effect according to claim 11, wherein the processing solution is prepared by mixing the detergent composition according to claim 5 with water.

13. A method for sustaining the antibacterial effect according to claim 12 or 13, further comprising step 4 below. Step 4: A storage step of storing the textile product obtained in step 3 after the start of wear or use until it is rewashed.

14. The method for sustaining the antibacterial effect according to claim 13, wherein the storage time of the textile product in step 4 is 10 hours or more.

15. A method for maintaining the antibacterial effect according to claim 13 or 14, wherein the textile product in step 4 is stored in a container.

Images