Liquid detergent composition

Abstract

To provide a liquid detergent composition that has excellent bacteriocidal effect and can provide excellent bacteriocidal effect even with short-term treatment, and to provide a bacteriocidal cleaning method.SOLUTION: Provided is a liquid detergent composition that contains the following components (a), (b), and (c). Component (a): nonionic surfactant (excluding component (b)). Component (b): nonionic surfactant represented by the following general formula (b1). Rb-O-(EO)s-H (b1) [In the formula, Rb is a secondary alkyl group having 8 to 24 carbon atoms, EO is an ethyleneoxy group, and s is the average number of added moles, and is a number greater than 0 and less than 7.]. Component (c): cationic surfactant.SELECTED DRAWING: None

Description

[Technical Field]

[0001] The present invention relates to a liquid detergent composition and a disinfecting and cleaning method. [Background technology]

[0002] Detergents containing surfactants are used to clean a variety of items, including textile products such as clothing, and hard objects in bathrooms, toilets, and various industrial facilities. In recent years, as consumers have become more hygienic, there has been growing interest in odors and bacteria on textile and hard surfaces, leading to various studies on providing disinfecting effects in addition to cleaning. It is known that various bacteria, both resident on the skin and present in the environment, adhere to and grow on textile and hard surfaces. The use of quaternary ammonium salts is known as a means of inhibiting the growth of bacteria on textile and hard surfaces.

[0003] Patent Document 1 discloses a liquid detergent for textile products, which contains, under specified conditions, (A) one or more compounds selected from specific fatty acid alkyl ester alkoxylates and specific alcohol alkoxylates, (B) one or more compounds selected from specific fatty acid alkyl ester alkoxylates and specific alcohol alkoxylates, and (C) one or more compounds (c1) selected from quaternary ammonium compounds, tertiary amine compounds, secondary amine compounds, dimethyldiallylammonium polymers, and biguanide compounds, or a water-soluble silver salt (c2).

[0004] Patent Document 2 discloses a liquid detergent composition for textile products that contains (A) a nonionic surfactant, (B) a phenolic antibacterial agent, and (C) a specific quaternary ammonium compound under specified conditions. [Prior art documents] [Patent documents]

[0005] [Patent Document 1] Japanese Patent Application Laid-Open No. 2014-28942 [Patent Document 2] Japanese Patent Application Publication No. 2020-105278 Summary of the Invention [Problem to be solved by the invention]

[0006] The present invention provides a liquid detergent composition that has excellent bactericidal effect and can provide excellent bactericidal effect even with short-term treatment, and a bactericidal cleaning method. [Means for solving the problem]

[0007] The present invention relates to a liquid detergent composition containing the following components (a), (b), and (c): Component (a): Nonionic surfactant (excluding component (b)) Component (b): a nonionic surfactant represented by the following general formula (b1): R b -O-(EO) s -H (b1) [In the formula, R b is a secondary alkyl group having 8 to 24 carbon atoms, EO is an ethyleneoxy group, and s is the average number of moles added, which is a number greater than 0 and less than 7. (c) Component: Cationic surfactant

[0008] The present invention also relates to a sterilizing and cleaning method in which a treatment liquid containing the above-mentioned components (a), (b), (c), and water is brought into contact with an object containing microorganisms. [Effects of the Invention]

[0009] According to the present invention, a liquid detergent composition and a disinfecting and cleaning method are provided which have excellent disinfecting effects and can achieve excellent disinfecting effects even with short-term treatment, for example.

[0010] The reason why the liquid detergent composition of the present invention has an excellent bactericidal effect is not entirely clear, but is presumed to be as follows. Generally, cationic surfactants exert their bactericidal effect by adsorbing to bacterial cells, and therefore the greater the amount of cationic surfactant adsorbed to bacterial cells, the better the bactericidal effect. The nonionic surfactant having a secondary alkyl group, which is component (b) of the present invention, is thought to be more effective at increasing the amount of cationic surfactant adsorbed to bacterial cells when used in combination with a cationic surfactant than other nonionic surfactants, for example, nonionic surfactants having a primary alkyl group. In other words, in the present invention, the use of the nonionic surfactant having a secondary alkyl group, which is component (b) of the present invention, as the nonionic surfactant to be combined with the cationic surfactant contributes to achieving an excellent bactericidal effect. DETAILED DESCRIPTION OF THE INVENTION

[0011] <Liquid detergent composition> Component (a) is a nonionic surfactant (excluding component (b)). From the viewpoint of bactericidal effect, the component (a) is preferably one or more nonionic surfactants selected from aliphatic alcohol alkoxylates and aliphatic ester alkoxylates.

[0012] From the viewpoint of antiseptic effect, the aliphatic hydrocarbon group may be an alkyl group or an alkenyl group, with an alkyl group being preferred.

[0013] From the viewpoint of antiseptic effect, the aliphatic hydrocarbon group in the aliphatic alcohol alkoxylate and the aliphatic ester alkoxylate is linear or branched, preferably linear, and the number of carbon atoms in the aliphatic hydrocarbon group is preferably 9 or more, more preferably 10 or more, even more preferably 12 or more, still more preferably 14 or more, still more preferably 16 or more, and preferably 20 or less, more preferably 18 or less.

[0014] From the viewpoint of bactericidal effect, the alkylene oxide in the aliphatic alcohol alkoxylate and the aliphatic ester alkoxylate is preferably at least one selected from ethylene oxide and propylene oxide, more preferably ethylene oxide. When the alkylene oxide contains ethylene oxide and propylene oxide, it may be of block bond type or random bond type.

[0015] From the viewpoint of the bactericidal effect, the average number of moles of alkylene oxide added in the aliphatic alcohol alkoxylate and the aliphatic ester alkoxylate is preferably 1 or more, more preferably 5 or more, even more preferably 10 or more, and preferably 70 or less, more preferably 50 or less, even more preferably 35 or less, and still more preferably 20 or less.

[0016] Examples of the aliphatic ester alkoxylate include alkylene oxide adducts of fatty acids and their terminal methylated products. Fatty acid methyl ester ethoxylates are preferred as the aliphatic ester alkoxylates from the viewpoint of antiseptic effect.

[0017] From the viewpoint of antiseptic effect, the fatty acid in the aliphatic ester alkoxylate is preferably a fatty acid having an aliphatic hydrocarbon group with a carbon number of preferably 9 or more, more preferably 10 or more, even more preferably 12 or more, still more preferably 14 or more, still more preferably 16 or more, and preferably 20 or less, more preferably 18 or less.

[0018] Examples of the component (a) include one or more nonionic surfactants selected from the group consisting of nonionic surfactants represented by the following general formula (a1) and nonionic surfactants represented by the following general formula (a2). R 1a -O-〔(EO) p / (PO) q 〕-H (a1) [R in the formula 1ais an aliphatic hydrocarbon group having 10 to 24 carbon atoms, EO is an ethyleneoxy group, PO is a propyleneoxy group, p and q are the average number of moles added, p is a number of 0 to 40, q is a number of 0 to 6, the sum of p and q is 1 or more, and when EO and PO are contained, EO and PO may be bonded in a block type or a random type. R 2a -(CO)O-(AO) r -R 3a (a2) [In the formula, R 2a is an aliphatic hydrocarbon group having 9 to 18 carbon atoms, and R 3a is a hydrogen atom or a methyl group, CO is a carbonyl group, and AO is one or more alkyleneoxy groups selected from alkyleneoxy groups having 2 carbon atoms and alkyleneoxy groups having 3 carbon atoms. When AO contains an alkyleneoxy group having 2 carbon atoms and an alkyleneoxy group having 3 carbon atoms, the alkyleneoxy group having 2 carbon atoms and the alkyleneoxy group having 3 carbon atoms may be bonded in a block or random manner. r is the average number of moles added and is a number of 1 to 70.

[0019] In general formula (a1), R 1a From the viewpoint of bactericidal effect, the number of carbon atoms is 10 or more, preferably 12 or more, and 24 or less, preferably 18 or less, more preferably 14 or less.

[0020] In general formula (a1), R 1a From the viewpoint of antiseptic effect, examples of the aliphatic hydrocarbon group of R include alkyl groups and alkenyl groups, with alkyl groups being preferred. 1a From the viewpoint of the bactericidal effect, is preferably a linear or branched aliphatic hydrocarbon group, for example, a linear or branched alkyl group or a linear or branched alkenyl group, and more preferably a linear alkyl group.

[0021] In general formula (a1), p is a number from 0 to 40, and when p is not 0, from the viewpoint of the bactericidal effect, it is preferably 1 or more, more preferably 3 or more, even more preferably 5 or more, still more preferably 7 or more, still more preferably 10 or more, and preferably 35 or less, more preferably 30 or less.

[0022] In general formula (a1), q is a number of 0 or more and 6 or less, and when q is not 0, it is preferably 1 or more and preferably 4 or less from the viewpoint of the bactericidal effect.

[0023] From the viewpoint of bactericidal effect, examples of the component (a) include nonionic surfactants represented by the following general formula (a1-1). R 1a -O-(EO) n1 -(PO) q -(EO) n2 -H (a1-1) [R in the formula 1a is an aliphatic hydrocarbon group having 10 to 24 carbon atoms, EO is an ethyleneoxy group, PO is a propyleneoxy group, n1, n2, and q are the average number of moles added, n1 is a number of 0 to 20, q is a number of 1 to 6, and n2 is a number of 0 to 20. When both EO and PO are contained, n1 and n2 are not simultaneously 0, and EO and PO are bonded in this order in a block form.

[0024] In general formula (a1-1), R 1a Specific and preferred examples of q are the same as those in formula (a1).

[0025] In general formula (a1-1), n1 is a number from 0 to 20, and when n1 is not 0, from the viewpoint of the bactericidal effect, it is preferably 4 or more, more preferably 5 or more, even more preferably 7 or more, and preferably 18 or less, more preferably 16 or less, even more preferably 12 or less.

[0026] In general formula (a1-1), n2 is a number from 0 to 20, and when n2 is not 0, from the viewpoint of the bactericidal effect, it is preferably 4 or more, more preferably 5 or more, even more preferably 7 or more, and preferably 19 or less, more preferably 18 or less, even more preferably 17 or less.

[0027] In addition, in the general formula (a2), R 2a From the viewpoint of bactericidal effect, the number of carbon atoms is 9 or more, preferably 10 or more, more preferably 12 or more, and 18 or less, preferably 16 or less, more preferably 14 or less.

[0028] R 2a From the viewpoint of the bactericidal effect, the aliphatic hydrocarbon group may be an alkyl group or an alkenyl group, and is preferably an alkyl group. From the viewpoint of the bactericidal effect, the aliphatic hydrocarbon group may be a straight chain or a branched chain, and is preferably a straight chain.

[0029] From the viewpoint of bactericidal effect, R 3a is a hydrogen atom or a methyl group, preferably a hydrogen atom.

[0030] In general formula (a2), r is 1 or more, preferably 5 or more, more preferably 10 or more, and 70 or less, preferably 50 or less, more preferably 25 or less, from the viewpoint of the bactericidal effect.

[0031] In general formula (a2), AO is one or more alkyleneoxy groups selected from alkyleneoxy groups having 2 carbon atoms and alkyleneoxy groups having 3 carbon atoms. When AO contains an alkyleneoxy group having 2 carbon atoms and an alkyleneoxy group having 3 carbon atoms, the alkyleneoxy group having 2 carbon atoms and the alkyleneoxy group having 3 carbon atoms may be bonded in a block manner or a random manner.

[0032] Nonionic surfactants other than aliphatic alcohol alkoxylates and aliphatic ester alkoxylates include polyhydric alcohol fatty acid esters that may contain alkyleneoxy groups, alkyl glycosides, polyethylene glycols, polyoxyethylene-polyoxypropylene block copolymers, polyoxypropylene-polyoxyethylene-polyoxypropylene block copolymers, etc. From the viewpoint of bactericidal effect, polyhydric alcohol fatty acid esters that may contain alkyleneoxy groups include glycerin fatty acid esters, polyglycerin fatty acid esters, propylene glycol fatty acid esters, polyethylene glycol fatty acid esters, sorbitan fatty acid esters, sucrose fatty acid esters, polyoxyethylene sorbitan fatty acid esters, etc.

[0033] In the liquid detergent composition of the present invention, the component (a) may be used alone or in combination of two or more.

[0034] From the viewpoint of bactericidal effect, the liquid detergent composition of the present invention may contain component (a) in an amount of preferably 3% by mass or more, more preferably 5% by mass or more, even more preferably 10% by mass or more, and preferably 50% by mass or less, more preferably 30% by mass or less, even more preferably 25% by mass or less.

[0035] The component (b) is a nonionic surfactant represented by the following general formula (b1): R b -O-(EO) s -H (b1) [In the formula, R b is a secondary alkyl group having 8 to 24 carbon atoms, EO is an ethyleneoxy group, and s is the average number of moles added, which is a number greater than 0 and less than 7.

[0036] In general formula (b1), R bFrom the viewpoint of the bactericidal effect, the number of carbon atoms in the group may be 8 or more, preferably 10 or more, more preferably 12 or more, even more preferably 14 or more, and 24 or less, preferably 18 or less, even more preferably 16 or less. Here, the secondary alkyl group is a residue obtained by removing a hydroxyl group from a secondary alcohol, and more specifically, R b R bonded to O in -O- b is a group in which the carbon atom is a secondary carbon atom.

[0037] In general formula (b1), s is a number greater than 0 and less than 7, preferably 5 or less, more preferably 4 or less, and even more preferably 3 or less, from the viewpoint of the bactericidal effect.

[0038] In the liquid detergent composition of the present invention, component (b) may be used alone or in combination of two or more. The liquid detergent composition of the present invention preferably contains, as component (b), a nonionic surfactant represented by general formula (b1), where s is more than 0 and not more than 3.

[0039] From the viewpoint of bactericidal effect, the liquid detergent composition of the present invention may contain component (b) in an amount of preferably 1% by mass or more, more preferably 2% by mass or more, even more preferably 5% by mass or more, and preferably 30% by mass or less, more preferably 15% by mass or less, even more preferably 10% by mass or less, and even more preferably 8% by mass or less.

[0040] Component (c) is a cationic surfactant. From the viewpoint of bactericidal effect, examples of the component (c) include compounds represented by the following general formula (c1).

[0041] [ka]

[0042] [In the formula, R 1c is a chain hydrocarbon group having 8 to 24 carbon atoms, and R 2cis a chain hydrocarbon group having 8 to 24 carbon atoms, an alkyl group having 1 to 3 carbon atoms, or a hydroxyalkyl group having 1 to 3 carbon atoms, and R 3c and R 4c are each independently an alkyl group having 1 to 3 carbon atoms or a hydroxyalkyl group having 1 to 3 carbon atoms, and X - is an alkyl sulfate ion having 1 to 3 carbon atoms, or a halide ion.

[0043] In general formula (c1), R 1c From the viewpoint of the antiseptic effect, the number of carbon atoms in the chain hydrocarbon group is preferably 9 or more, more preferably 10 or more, and is preferably 18 or less, more preferably 14 or less, and even more preferably 12 or less.

[0044] R 2c is a chain hydrocarbon group having 8 to 24 carbon atoms, an alkyl group having 1 to 3 carbon atoms, or a hydroxyalkyl group having 1 to 3 carbon atoms, and R 2c From the viewpoint of the antiseptic effect, the number of carbon atoms in the chain hydrocarbon group is preferably 9 or more, more preferably 10 or more, and is preferably 18 or less, more preferably 14 or less, and even more preferably 12 or less. R 2c From the viewpoint of antiseptic effect, the chain hydrocarbon group is preferably an alkyl group or an alkenyl group, more preferably an alkyl group.

[0045] R 3c , R 4c are each independently an alkyl group having 1 to 3 carbon atoms, such as a methyl group or an ethyl group, or a hydroxyalkyl group having 1 to 3 carbon atoms.

[0046] R 1c , R 2c Specific examples of the chain hydrocarbon group are octyl, nonyl, decyl, dodecyl, tetradecyl and hexadecyl groups, and from the viewpoint of the bactericidal effect, nonyl and decyl groups are preferred, with decyl being more preferred.

[0047] R 2c , R 3c and R4c Specific examples of the hydroxyalkyl group having 1 to 3 carbon atoms include, independently, a hydroxymethyl group, a hydroxyethyl group, and a hydroxypropyl group. X - is CH3SO4 - , CH3CH2SO4 - The alkyl sulfate ion has 1 to 3 carbon atoms, such as alkyl sulfate ions, or halide ions.

[0048] More specific examples of the compound represented by general formula (c1), from the viewpoint of bactericidal effect, include one or more compounds selected from N-ethyl-N,N-dimethyltetradecylammonium salt, trimethylhexadecylammonium salt, N,N-dioctyl-N,N-dimethylammonium salt, N,N-dinonyl-N,N-dimethylammonium salt, N,N-didecyl-N,N-dimethylammonium salt, N,N-dioctyl-N-ethyl-N-methylammonium salt, N,N-dinonyl-N-ethyl-N-methylammonium salt, and N,N-didecyl-N-ethyl-N-methylammonium salt. Mono-long chain ammonium salts and di-long chain ammonium salts can also be used in combination. The counter ion of these salts is CH3SO4 - , CH3CH2SO4 - , or a halide ion such as chloride ion.

[0049] From the viewpoint of bactericidal effect, component (c) may be a bispyridinium compound. Examples of the bispyridinium compound include those described in British Patent No. 1533952, Japanese Patent Laid-Open No. 52-105228, and International Publication No. 2014 / 100807. Specific examples of the bispyridinium compound include a compound represented by the following general formula (c2) and a compound represented by the following general formula (c3).

[0050] [ka]

[0051] wherein Y is an alkylene or alkenylene group having 4 to 18 carbon atoms; R 5c each represents an alkyl group having 6 to 18 carbon atoms, a cycloalkyl group having 5 to 7 carbon atoms, or a phenyl group with or without halogen substitution, and A is an anion. q is 1 or 2, r is 1 or 2, and q × r = 2.

[0052] A is a monovalent or divalent anion, such as chloride, bromide, phosphate, orthosilicate, an organic acid, such as a compound of formula R 6c It can be an anion from a compound such as an organic acid with -COO- or an alkyl (having 1 to 40 carbon atoms) sulfonic acid. 6c is hydrogen, hydroxyl, or an alkyl group having from 1 to 40 carbon atoms.

[0053] From the viewpoint of bactericidal effect, organic acids corresponding to the anion of A include, for example, acetic acid, propionic acid, phosphoric acid, glycolic acid, pyruvic acid, oxalic acid, maleic acid, malonic acid, succinic acid, fumaric acid, tartaric acid, citric acid, benzoic acid, cinnamic acid, mandelic acid, methanesulfonic acid, ethanesulfonic acid, p-toluenesulfonic acid, glycyrrhizic acid, salicylic acid, stearic acid, phosphonic acid, trifluoroacetic acid, cyanoacetic acid, 4-cyanobenzoic acid, 2-chlorobenzoic acid, 2-nitrobenzoic acid, phenoxyacetic acid, and benzenesulfonic acid.

[0054] From the viewpoint of the bactericidal effect, preferred bispyridinium compounds are compounds of general formula (c3), and further octenidine dihydrochloride (in general formula (c3), R 5c is an n-octyl group, Y is an n-decenyl group, A is Cl, q is 1, and r is 2, CAS number 70775-75-6). In the liquid detergent composition of the present invention, the component (c) may be used alone or in combination of two or more.

[0055] From the viewpoint of bactericidal effect, the liquid detergent composition of the present invention may contain component (c) in an amount of preferably 0.001% by mass or more, more preferably 0.01% by mass or more, even more preferably 0.1% by mass or more, still more preferably 0.5% by mass or more, and preferably 10% by mass or less, more preferably 5% by mass or less, even more preferably 3% by mass or less, and still more preferably 1% by mass or less.

[0056] From the viewpoint of bactericidal effect, the liquid detergent composition of the present invention has a mass ratio (a) / (b) of the content of component (a) to the content of component (b) of preferably 0.1 or more, more preferably 1 or more, even more preferably 2 or more, and preferably 50 or less, more preferably 10 or less. The content of each component refers to the content of that component in the liquid detergent composition of the present invention (the same applies hereinafter unless otherwise specified).

[0057] From the viewpoint of bactericidal effect, the liquid detergent composition of the present invention has a mass ratio (a) / (c) of the content of component (a) to the content of component (c) of preferably 1 or more, more preferably 10 or more, and preferably 100 or less, more preferably 50 or less, even more preferably 40 or less, still more preferably 30 or less, even more preferably 25 or less, and even more preferably 20 or less.

[0058] From the viewpoint of bactericidal effect, the liquid detergent composition of the present invention has a mass ratio (b) / (c) of the content of component (b) to the content of component (c) of preferably 1 or more, more preferably 2 or more, even more preferably 3 or more, and preferably 500 or less, more preferably 400 or less, even more preferably 300 or less, even more preferably 200 or less, even more preferably 100 or less, even more preferably 50 or less, even more preferably 25 or less, and even more preferably 10 or less.

[0059] The liquid detergent composition of the present invention may contain surfactants other than components (a), (b), and (c) (hereinafter also referred to as "other surfactants") to the extent that the effects of the present invention are not affected. Examples of other surfactants include one or more surfactants selected from anionic surfactants and amphoteric surfactants. From the viewpoint of bactericidal effect, the content of other surfactants in the liquid detergent composition of the present invention is preferably 2% by mass or less, more preferably 1% by mass or less, even more preferably 0.5% by mass or less, and even more preferably 0.1% by mass or less, and may even be 0% by mass.

[0060] Examples of anionic surfactants that can be used in terms of bactericidal effect include internal olefin sulfonates having 10 to 18 carbon atoms, sulfate salts having an alkyl or alkenyl group having 10 to 24 carbon atoms, polyoxyalkylene alkyl or alkenyl ether sulfate salts having an alkyl or alkenyl group having 10 to 24 carbon atoms, alkylbenzene sulfonates having an alkyl group having 8 to 18 carbon atoms (an alkyl group having 8 to 18 carbon atoms refers to an alkyl group substituted on a benzene ring, excluding the benzene skeleton), sulfonates having an alkyl or alkenyl group having 10 to 24 carbon atoms (excluding internal olefin sulfonates having 10 to 18 carbon atoms), and fatty acids having 10 to 24 carbon atoms or salts thereof. From the viewpoint of bactericidal effect, examples of these salts include alkali metal salts, alkaline earth metal (half atom) salts, ammonium salts, and organic ammonium salts. Examples of alkali metal salts include sodium salts and potassium salts. Examples of organic ammonium salts include alkanolammonium salts having 1 to 6 carbon atoms.

[0061] From the viewpoint of bactericidal effect, the content of the anionic surfactant in the liquid detergent composition of the present invention is preferably 1 mass% or less, more preferably 0.5 mass% or less, even more preferably 0.1 mass% or less, and may be 0 mass%.

[0062] From the viewpoint of bactericidal effect, examples of amphoteric surfactants include alkyl or alkenyl amine oxides having 10 to 24 carbon atoms, alkyl or alkenyl betaines having 10 to 24 carbon atoms, and alkyl or alkenyl sulfobetaines having 10 to 24 carbon atoms.

[0063] The liquid detergent composition of the present invention preferably contains water. Ion-exchanged water, tap water, purified water, etc. can be used as the water. Water can be used as the remainder of the composition in an amount such that the total composition is 100% by mass. From the viewpoint of bactericidal effect, the liquid detergent composition of the present invention contains water in an amount of preferably 10% by mass or more, more preferably 30% by mass or more, even more preferably 50% by mass or more, and preferably 90% by mass or less, more preferably 85% by mass or less.

[0064] From the viewpoint of bactericidal effect, the liquid detergent composition of the present invention may contain the following components (1) to (11) as other optional components, within the range that does not affect the effects of the present invention.

[0065] (1) Alkaline agent From the viewpoint of bactericidal effect, the liquid detergent composition of the present invention preferably contains an alkaline agent. Examples of alkaline agents include inorganic alkaline agents such as alkali metal hydroxides and alkali metal carbonates, and alkanolamines in which one to three of the groups bonded to the nitrogen atom are alkanol groups having from 2 to 4 carbon atoms, and the remaining groups are alkyl or hydrogen atoms having from 1 to 4 carbon atoms. From the viewpoint of bactericidal effect, the alkanol group is preferably a hydroxyalkyl group, and more preferably a hydroxyethyl group. From the viewpoint of bactericidal effect, a hydrogen atom or a methyl group other than the alkanol group is preferred, with a hydrogen atom being particularly preferred. From the viewpoint of bactericidal effect, examples of alkanolamines include alkanolamines such as 2-aminoethanol, N-methylethanolamine, N,N-dimethylethanolamine, N,N-diethylethanolamine, diethanolamine, N-methyldiethanolamine, and triethanolamine. In the present invention, from the viewpoint of bactericidal effect, the component (1) is preferably an alkanolamine selected from monoethanolamine and triethanolamine, with monoethanolamine being more preferred. The alkaline agent, which is the component (1), can also be used to adjust the pH of the liquid detergent composition of the present invention to a predetermined value. The liquid detergent composition of the present invention may contain component (1) in an amount sufficient to achieve the pH described below. Specifically, from the viewpoint of bactericidal effect, the composition may contain component (1) in an amount of preferably 0.01% by mass or more, more preferably 0.5% by mass or more, and preferably 10% by mass or less, more preferably 8% by mass or less. Note that, in the present invention, the amount of the alkaline agent (1), particularly the alkanolamine, included in the composition includes the amount derived from other components, such as counterions of anionic surfactants.

[0066] (2) Chelating agents Specific examples of chelating agents, from the viewpoint of bactericidal effect, include aminopolyacetic acids such as ethylenediaminetetraacetic acid, diethylenetriaminepentaacetic acid, and hydroxyethyliminodiacetic acid, or salts thereof, organic acids such as citric acid, lactic acid, tartaric acid, and malic acid, or salts thereof, 1-hydroxyethylidene-1,1-diphosphonic acid, diethylenetriaminepenta(methylenephosphonic acid), and alkali metal or lower amine salts thereof. The content of the chelating agent of component (2), when considered as an acid form, in the composition is preferably 0.1% by mass or more and 5% by mass or less, more preferably 0.1% by mass or more and 4% by mass or less, and even more preferably 0.1% by mass or more and 3% by mass or less, from the viewpoint of bactericidal effect.

[0067] (3) Anti-redeposition agents and / or polymeric dispersants From the viewpoint of bactericidal effect, examples of the anti-redeposition agent and / or polymer-based dispersant include polyacrylic acid, polymaleic acid, carboxymethyl cellulose, etc. From the viewpoint of bactericidal effect, the content of the anti-redeposition agent and / or polymer-based dispersant in the composition is preferably 0.01% by mass or more and 10% by mass or less.

[0068] (4) Bleach From the viewpoint of bactericidal effect, examples of bleaching agents include hydrogen peroxide, sodium percarbonate, sodium perborate, etc. The content of the bleaching agent in the composition is preferably 0.01% by mass or more and 10% by mass or less from the viewpoint of bactericidal effect.

[0069] (5) Bleach activator From the viewpoint of bactericidal effect, examples of the bleach activator include tetraacetylethylenediamine and bleach activators represented by general formulas (I-2) to (I-7) of JP-A-6-316700. From the viewpoint of bactericidal effect, the content of the bleach activator in the composition is preferably 0.01% by mass or more and 10% by mass or less.

[0070] (6) Enzymes The enzyme may be one or more enzymes selected from amylase, sucrase, lactase, cellulase, pectinase, protease, nuclease, lipase, etc., from the viewpoint of bactericidal effect. The content of the enzyme in the composition is preferably 0.001% by mass or more and 2% by mass or less, from the viewpoint of bactericidal effect. From the viewpoint of bactericidal effect, the enzyme preferably includes amylase and protease.

[0071] (7) Fluorescent dyes From the viewpoint of bactericidal effect, examples of the fluorescent dye include fluorescent dyes commercially available as Tinopal CBS (trade name, manufactured by Ciba Specialty Chemicals) and Whitex SA (trade name, manufactured by Sumitomo Chemical Co., Ltd.) From the viewpoint of bactericidal effect, the content of the fluorescent dye in the composition is preferably 0.001% by mass or more and 1% by mass or less.

[0072] (8) Antioxidants From the viewpoint of the bactericidal effect, examples of the antioxidant include butylhydroxytoluene, distyrenated cresol, sodium sulfite, sodium hydrogen sulfite, etc. The content of the antioxidant in the composition is preferably 0.01% by mass or more and 2% by mass or less from the viewpoint of the bactericidal effect.

[0073] (9) Colorants, fragrances, antibacterial agents such as dichrosan, and antifoaming agents such as silicone. From the viewpoint of bactericidal effect, dichlosan is preferred as the antibacterial agent.

[0074] (10) Organic solvents containing hydroxyl groups As the organic solvent having a hydroxyl group, one or more compounds selected from the following components (10-1) to (10-6) are used from the viewpoint of bactericidal effect.

[0075] Component (10-1): A monohydric alcohol having an aliphatic hydrocarbon group with 2 to 6 carbon atoms From the viewpoint of bactericidal effect, examples of the component (10-1) include monohydric alcohols selected from ethanol, 1-propanol, 2-propanol, and 1-butanol.

[0076] (10-2) Component: Dihydric to hexahydric alcohol having 2 to 6 carbon atoms From the viewpoint of antiseptic effect, examples of the component (10-2) include dihydric or trihydric alcohols selected from ethylene glycol, propylene glycol, butylene glycol, 2-methyl-2,4-pentanediol, 1,5-pentanediol, 1,6-hexanediol, and glycerin. 2-Methyl-2,4-pentanediol is also known as hexylene glycol.

[0077] Component (10-3): Polyalkylene glycol containing alkylene glycol units having 2 to 4 carbon atoms From the viewpoint of bactericidal effect, examples of the component (10-3) include polyalkylene glycols selected from diethylene glycol, triethylene glycol, tetraethylene glycol, dipropylene glycol, tripropylene glycol, polyethylene glycols having a weight-average molecular weight of 400 or more and 4000 or less, and polypropylene glycols having a weight-average molecular weight of 400 or more and 4000 or less.

[0078] Component (10-4): a monoalkyl ether of (mono- or poly) alkylene glycol having an alkylene glycol unit having from 2 to 4 carbon atoms and an alkyl group having from 1 to 4 carbon atoms From the viewpoint of bactericidal effect, examples of the (10-4) component include compounds selected from diethylene glycol monomethyl ether, triethylene glycol monomethyl ether, diethylene glycol monoethyl ether, dipropylene glycol monomethyl ether, dipropylene glycol monoethyl ether, tripropylene glycol monomethyl ether, diethylene glycol monobutyl ether, 1-methoxy-2-propanol, and 1-ethoxy-2-propanol.

[0079] Component (10-5): Alkyl glyceryl ether having an alkyl group with 1 to 8 carbon atoms From the viewpoint of antiseptic effect, examples of the component (10-5) include alkyl glyceryl ethers selected from 1-methyl glyceryl ether, 2-methyl glyceryl ether, 1,3-dimethyl glyceryl ether, 1-ethyl glyceryl ether, 1,3-diethyl glyceryl ether, triethyl glyceryl ether, 1-pentyl glyceryl ether, 2-pentyl glyceryl ether, 1-octyl glyceryl ether, and 2-ethylhexyl glyceryl ether.

[0080] (10-6) Component: Aromatic alkyl ether of (mono- or poly-) alkylene glycol having an alkylene glycol unit having 2 or 3 carbon atoms From the viewpoint of bactericidal effect, examples of the (10-6) component include compounds selected from 2-phenoxyethanol, diethylene glycol monophenyl ether, triethylene glycol monophenyl ether, polyethylene glycol monophenyl ether having an average molecular weight of approximately 480, 2-benzyloxyethanol, and diethylene glycol monobenzyl ether.

[0081] In the above components (10-4) and (10-6), the term "(mono- or poly)alkylene glycol" refers to a monoalkylene glycol or a polyalkylene glycol. Furthermore, "polyalkylene glycol" refers to a glycol containing 2 to 9 alkylene glycol units.

[0082] From the viewpoint of the bactericidal effect, the component (10) is preferably one or more compounds selected from the component (10-1), the component (10-2), the component (10-4), and the component (10-6). More specifically, from the viewpoint of bactericidal effect, the liquid detergent composition of the present invention preferably contains one or more compounds selected from ethanol, propylene glycol, diethylene glycol monobutyl ether, 2-phenoxyethanol, diethylene glycol monophenyl ether, and triethylene glycol monophenyl ether. From the viewpoint of bactericidal effect, the liquid detergent composition of the present invention more preferably contains, as an organic solvent having a hydroxyl group, one or more organic solvents selected from ethanol, propylene glycol, diethylene glycol monobutyl ether, 2-phenoxyethanol, and polyethylene glycol phenyl ether.

[0083] From the viewpoint of the bactericidal effect, the content of the (10) component in the composition is preferably 1% by mass or more, more preferably 4% by mass or more, even more preferably 5% by mass or more, and preferably 40% by mass or less, more preferably 20% by mass or less, even more preferably 10% by mass or less.

[0084] (11) Hydrotropic agents From the viewpoint of bactericidal effect, a hydrotrope can be added. From the viewpoint of bactericidal effect, the hydrotrope of the present invention is an organic compound having an anionic group, and examples thereof include alkylbenzenecarboxylic acids or alkylbenzenesulfonic acids or their salts containing one or two alkyl groups selected from methyl, ethyl, or propyl groups and one sulfonic acid or carboxylic acid group, as well as benzoic acid or its salt. More specifically, from the viewpoint of bactericidal effect, paratoluenesulfonic acid, cumenesulfonic acid, metaxylenesulfonic acid, and benzoic acid are preferred, and the salts are preferably alkali metal salts. In the present invention, paratoluenesulfonic acid or its alkali metal salts are preferred from the viewpoint of bactericidal effect, and may be added as an acid and neutralized with an alkali agent in the composition. From the viewpoint of bactericidal effect, the liquid detergent composition of the present invention may contain a hydrotrope, calculated as an acid compound, in an amount of preferably 0.1% by mass or more, more preferably 0.5% by mass or more, even more preferably 1% by mass or more, and preferably 5% by mass or less, more preferably 4% by mass or less, and even more preferably 3% by mass or less.

[0085] The pH of the liquid detergent composition of the present invention is not particularly limited, but can be set in consideration of viewpoints such as the sterilization effect. The pH at 25°C may be, for example, 3 or more, further 5 or more, still further 7 or more, and 12 or less, further 11 or less, still further 10 or less. The pH is a value measured at 25°C using a glass electrode. Specifically, it is measured by the following method. <Method for Measuring pH> Calibrate the pH electrode (type 6367) in advance with phthalic acid buffer solution (pH 4.01), phosphate standard solution (pH 6.84), and borate standard solution (pH 9.18) for the pH meter D-52 manufactured by Horiba, Ltd., and rinse it thoroughly with ion-exchanged water. Put the pH electrode calibrated and washed as described above into the liquid detergent composition whose temperature has been adjusted to 25°C, and measure it using the AUTO HOLD mode of the pH meter until the measured value becomes constant.

[0086] The viscosity of the liquid detergent composition of the present invention at 20°C is not particularly limited, but from the viewpoint of the sterilization effect, it is preferably 10 to 1,000 mPa·s, more preferably 20 to 600 mPa·s, and still more preferably 30 to 300 mPa·s. Specifically, it is measured by the following method. <Method for Measuring Viscosity> The viscosity is measured by a B-type viscometer. Select a rotor suitable for the viscosity. Rotate at 60 r / min, and take the viscosity 60 seconds after the start of rotation as the viscosity of the liquid detergent composition.

[0087] The liquid detergent composition of the present invention is suitable, for example, for fiber products such as clothing and bedding, and for hard surfaces such as tableware, bathrooms, floors, and medical instruments.

[0088] The liquid detergent composition of the present invention may be a liquid detergent composition containing component (a), component (b), and component (c). In this liquid detergent composition, the content of each of the above components can be applied by replacing it with the blending amount of each component in all the components to be blended.

[0089] The present invention discloses the use of a composition containing components (a), (b), and (c) as a liquid detergent composition. In the use of the present invention, the liquid detergent composition may be a liquid detergent composition for fabrics or a liquid detergent composition for hard surfaces. The present invention also discloses the use of a composition containing components (a), (b), and (c) as a liquid detergent composition. In the use of the present invention, the liquid detergent composition may be a liquid detergent composition for fabrics or a liquid detergent composition for hard surfaces. The matters described for the liquid detergent composition of the present invention can be applied as appropriate to the uses and applications of the present invention. For example, in the uses and applications of the present invention, the composition may have a mass ratio (a) / (b) of the content of component (a) to the content of component (b) of preferably 0.1 or more, more preferably 1 or more, even more preferably 2 or more, and preferably 50 or less, more preferably 10 or less.

[0090] <Sterilization and cleaning method> The sterilizing and cleaning method of the present invention involves contacting a treatment solution containing the above-mentioned components (a), (b), (c), and water (hereinafter also referred to as the treatment solution of the present invention) with an object containing microorganisms. The germicidal cleaning method of the present invention can be appropriately applied to the matters described above with respect to the liquid detergent composition of the present invention. Specific examples and preferred examples of components (a), (b), and (c) in the germicidal cleaning method of the present invention are the same as those in the liquid detergent composition of the present invention. The germicidal cleaning method of the present invention can use a treatment solution prepared from the liquid detergent composition of the present invention. The liquid detergent composition of the present invention may be used as is as long as it has a composition suitable for germicidal cleaning. The treatment solution of the present invention may be a treatment solution obtained by mixing components (a), (b), (c), and water. The contents of each component described below in this treatment solution can be applied by replacing them with the mixed amount of each component among all the components to be mixed.

[0091] The germicidal cleaning method of the present invention has an excellent germicidal effect, and therefore, for example, an excellent germicidal effect can be obtained even with a short treatment time. In the germicidal cleaning method of the present invention, for example, the contact time of the treatment solution of the present invention may be, for example, within 1 day (within 24 hours), further within 6 hours, further within 30 minutes, further within 15 minutes, or further within 5 minutes. This contact time may start from the time when the treatment solution of the present invention first comes into contact with the object.

[0092] In the sterilizing and cleaning method of the present invention, the pH of the treatment liquid of the present invention is not particularly limited from the viewpoint of the sterilizing effect, but the pH at 25°C may be, for example, 3 or more, further 5 or more, further 7 or more, and 12 or less, further 11 or less, or further 10 or less. The pH is a value measured at 25°C using a glass electrode, and specifically, can be measured in the same manner as for the liquid detergent composition of the present invention.

[0093] The treatment liquid of the present invention can be used either as a composition containing a relatively large amount of water or as a composition containing a relatively small amount of water, taking into consideration, for example, the object to be treated. In compositions containing a relatively large amount of water, the treatment solution of the present invention may contain component (a) in an amount of preferably 2 ppm or more, more preferably 10 ppm or more, even more preferably 80 ppm or more, and preferably 5000 ppm or less, more preferably 1000 ppm or less, even more preferably 250 ppm or less, from the viewpoint of bactericidal effect. Furthermore, in compositions containing a relatively small amount of water, the treatment solution of the present invention can contain component (a) in an amount of preferably 30,000 ppm or more, more preferably 50,000 ppm or more, even more preferably 100,000 ppm or more, and preferably 500,000 ppm or less, more preferably 300,000 ppm or less, even more preferably 250,000 ppm or less, from the viewpoint of bactericidal effect.

[0094] In compositions containing a relatively large amount of water, the treatment solution of the present invention may contain component (b) in an amount of preferably 0.5 ppm or more, more preferably 5 ppm or more, even more preferably 20 ppm or more, and preferably 2500 ppm or less, more preferably 1000 ppm or less, even more preferably 100 ppm or less, from the viewpoint of bactericidal effect. Furthermore, in compositions containing a relatively small amount of water, the treatment solution of the present invention can contain component (b) in an amount of preferably 10,000 ppm or more, more preferably 20,000 ppm or more, even more preferably 25,000 ppm or more, and preferably 300,000 ppm or less, more preferably 150,000 ppm or less, even more preferably 100,000 ppm or less, from the viewpoint of bactericidal effect.

[0095] In compositions containing a relatively large amount of water, the treatment solution of the present invention may contain component (c) in an amount of preferably 0.0005 ppm or more, more preferably 1 ppm or more, even more preferably 4 ppm or more, and preferably 1000 ppm or less, more preferably 250 ppm or less, even more preferably 25 ppm or less, from the viewpoint of bactericidal effect. Furthermore, in compositions containing a relatively small amount of water, the treatment solution of the present invention can contain component (c) in an amount of preferably 10 ppm or more, more preferably 2000 ppm or more, even more preferably 5000 ppm or more, and preferably 100,000 ppm or less, more preferably 50,000 ppm or less, even more preferably 30,000 ppm or less, from the viewpoint of the bactericidal effect.

[0096] When the object of the disinfecting and cleaning method of the present invention is a textile product, the disinfecting and cleaning method of the present invention can be incorporated into the washing process of so-called textile washing, for example. In this case, the washing conditions can be similar to those of ordinary washing. When the disinfecting and cleaning method of the present invention is incorporated into the washing process of laundry, from the viewpoint of disinfecting effect, a treatment liquid can be used in which the liquid detergent composition of the present invention is diluted with water at a dilution ratio of preferably 500 times or more, more preferably 800 times or more, and preferably 5000 times or less, more preferably 3000 times or less.

[0097] In addition to the above-described embodiments, the present invention discloses the following aspects. The matters described in the liquid detergent composition, disinfecting and cleaning method, use as a liquid detergent composition, and applications as a liquid detergent composition of the present invention can be mutually applied to these aspects, as appropriate.

[0098] <1> A liquid detergent composition comprising the following components (a), (b), and (c): Component (a): Nonionic surfactant (excluding component (b)) Component (b): a nonionic surfactant represented by the following general formula (b1): R b -O-(EO) s -H (b1) [In the formula, R b is a secondary alkyl group having 8 to 24 carbon atoms, EO is an ethyleneoxy group, and s is the average number of moles added, which is a number greater than 0 and less than 7. (c) Component: Cationic surfactant

[0099] <2> The component (a) is one or more nonionic surfactants selected from the group consisting of a nonionic surfactant represented by the following general formula (a1) and a nonionic surfactant represented by the following general formula (a2): <1> The liquid detergent composition according to claim 1. R 1a -O-〔(EO) p / (PO) q 〕-H (a1) [R in the formula 1a is an aliphatic hydrocarbon group having 10 to 24 carbon atoms, EO is an ethyleneoxy group, PO is a propyleneoxy group, p and q are the average number of moles added, p is a number of 0 to 40, q is a number of 0 to 6, the sum of p and q is 1 or more, and when EO and PO are contained, EO and PO may be bonded in a block type or a random type. R 2a -(CO)O-(AO) r -R 3a (a2) [In the formula, R 2ais an aliphatic hydrocarbon group having 9 to 18 carbon atoms, and R 3a is a hydrogen atom or a methyl group, CO is a carbonyl group, and AO is one or more alkyleneoxy groups selected from alkyleneoxy groups having 2 carbon atoms and alkyleneoxy groups having 3 carbon atoms. When AO contains an alkyleneoxy group having 2 carbon atoms and an alkyleneoxy group having 3 carbon atoms, the alkyleneoxy group having 2 carbon atoms and the alkyleneoxy group having 3 carbon atoms may be bonded in a block or random manner. r is the average number of moles added and is a number of 1 to 70.

[0100] <3> The component (a) is one or more nonionic surfactants selected from nonionic surfactants represented by the following general formula (a1-1): <1> or <2> The liquid detergent composition according to claim 1. R 1a -O-(EO) n1 -(PO) q -(EO) n2 -H (a1-1) [R in the formula 1a is an aliphatic hydrocarbon group having 10 to 24 carbon atoms, EO is an ethyleneoxy group, PO is a propyleneoxy group, n1, n2, and q are the average number of moles added, n1 is a number of 0 to 20, q is a number of 1 to 6, and n2 is a number of 0 to 20. When both EO and PO are contained, n1 and n2 are not simultaneously 0, and EO and PO are bonded in this order in a block form.

[0101] <4> The liquid detergent composition contains component (a) in an amount of preferably 3% by mass or more, more preferably 5% by mass or more, even more preferably 10% by mass or more, and preferably 50% by mass or less, more preferably 30% by mass or less, even more preferably 25% by mass or less. <1> ~ <3> 10. The liquid detergent composition according to claim 1, wherein the liquid detergent composition is a liquid detergent composition having a viscosity of 1000 to 10000 MPa.

[0102] <5> In general formula (b1), s is a number greater than 0 and less than 7, preferably 5 or less, more preferably 4 or less, and even more preferably 3 or less. <1> ~ <4> 10. The liquid detergent composition according to claim 1, wherein the liquid detergent composition is a liquid detergent composition having a viscosity of 1000 to 10000 MPa.

[0103] <6> The liquid detergent composition contains component (b) in an amount of preferably 1% by mass or more, more preferably 2% by mass or more, even more preferably 5% by mass or more, and preferably 30% by mass or less, more preferably 15% by mass or less, even more preferably 10% by mass or less, and still more preferably 8% by mass or less. <1> ~ <5> 10. The liquid detergent composition according to claim 1, wherein the liquid detergent composition is a liquid detergent composition having a viscosity of 1000 to 10000 MPa.

[0104] <7> The component (c) is a compound represented by the following general formula (c1): <1> ~ <6> 10. The liquid detergent composition according to claim 1, wherein the liquid detergent composition is a liquid detergent composition having a viscosity of 1000 to 10000 MPa.

[0105] [ka]

[0106] [In the formula, R 1c is a chain hydrocarbon group having 8 to 24 carbon atoms, and R 2c is a chain hydrocarbon group having 8 to 24 carbon atoms, an alkyl group having 1 to 3 carbon atoms, or a hydroxyalkyl group having 1 to 3 carbon atoms, and R 3c and R 4c are each independently an alkyl group having 1 to 3 carbon atoms or a hydroxyalkyl group having 1 to 3 carbon atoms, and X - is an alkyl sulfate ion having 1 to 3 carbon atoms, or a halide ion.

[0107] <8> the compound represented by general formula (c1) is one or more compounds selected from N-ethyl-N,N-dimethyltetradecylammonium salt, trimethylhexadecylammonium salt, N,N-dioctyl-N,N-dimethylammonium salt, N,N-dinonyl-N,N-dimethylammonium salt, N,N-didecyl-N,N-dimethylammonium salt, N,N-dioctyl-N-ethyl-N-methylammonium salt, N,N-dinonyl-N-ethyl-N-methylammonium salt, and N,N-didecyl-N-ethyl-N-methylammonium salt; <7> The liquid detergent composition according to claim 1.

[0108] <9> The counter ion of the salt of the compound is CH3SO4 - , CH3CH2SO4 - or a halide ion such as a chloride ion, <7> or <8> The liquid detergent composition according to claim 1.

[0109] <10> The component (c) is a bispyridinium compound, and is further one or more compounds selected from the compounds represented by the following general formula (c2) and the compounds represented by the following general formula (c3), and is further one or more compounds selected from the compounds represented by the general formula (c3), and is further octenidine dihydrochloride (in the general formula (c3), R 5c is an n-octyl group, Y is an n-decenyl group, A is Cl, q is 1, and r is 2, CAS number 70775-75-6). <1> ~ <6> 10. The liquid detergent composition according to claim 1, wherein the liquid detergent composition is a liquid detergent composition having a viscosity of 1000 to 10000 MPa.

[0110] [ka]

[0111] wherein Y is an alkylene or alkenylene group having 4 to 18 carbon atoms; R 5ceach represents an alkyl group having 6 to 18 carbon atoms, a cycloalkyl group having 5 to 7 carbon atoms, or a phenyl group with or without halogen substitution, and A is an anion. q is 1 or 2, r is 1 or 2, and q × r = 2.

[0112] <11> The liquid detergent composition contains component (c) in an amount of preferably 0.001% by mass or more, more preferably 0.01% by mass or more, even more preferably 0.1% by mass or more, still more preferably 0.5% by mass or more, and preferably 10% by mass or less, more preferably 5% by mass or less, even more preferably 3% by mass or less, and still more preferably 1% by mass or less. <1> ~ <10> 10. The liquid detergent composition according to claim 1, wherein the liquid detergent composition is a liquid detergent composition having a viscosity of 1000 to 10000 MPa.

[0113] <12> The value of (a) / (b), which is the mass ratio of the content of the component (a) to the content of the component (b), is preferably 0.1 or more, more preferably 1 or more, even more preferably 2 or more, and is preferably 50 or less, more preferably 10 or less. <1> ~ <11> 10. The liquid detergent composition according to claim 1, wherein the liquid detergent composition is a liquid detergent composition having a viscosity of 1000 to 10000 MPa.

[0114] <13> The value of (a) / (c), which is the mass ratio of the content of the component (a) to the content of the component (c), is preferably 1 or more, more preferably 10 or more, and preferably 100 or less, more preferably 50 or less, even more preferably 40 or less, still more preferably 30 or less, even more preferably 25 or less, and still more preferably 20 or less. <1> ~ <12> 10. The liquid detergent composition according to claim 1, wherein the liquid detergent composition is a liquid detergent composition having a viscosity of 1000 to 10000 MPa.

[0115] <14> The value of (b) / (c), which is the mass ratio of the content of the (b) component to the content of the (c) component, is preferably 1 or more, more preferably 2 or more, even more preferably 3 or more, and is preferably 500 or less, more preferably 400 or less, even more preferably 300 or less, still more preferably 200 or less, still more preferably 100 or less, still more preferably 50 or less, still more preferably 25 or less, and still more preferably 10 or less. <1> ~ <13> 10. The liquid detergent composition according to claim 1, wherein the liquid detergent composition is a liquid detergent composition having a viscosity of 1000 to 10000 MPa.

[0116] <15> For textiles or hard surfaces, <1> ~ <14> 10. The liquid detergent composition according to claim 1, wherein the liquid detergent composition is a liquid detergent composition having a viscosity of 1000 to 10000 MPa.

[0117] <16> The composition contains water, and the water content is preferably 10% by mass or more, more preferably 30% by mass or more, even more preferably 50% by mass or more, and preferably 90% by mass or less, more preferably 85% by mass or less. <1> ~ <15> 10. The liquid detergent composition according to claim 1, wherein the liquid detergent composition is a liquid detergent composition having a viscosity of 1000 to 10000 MPa.

[0118] <17> A sterilizing and cleaning method comprising contacting an object containing microorganisms with a treatment liquid containing the following components (a), (b), and (c), and water: Component (a): Nonionic surfactant (excluding component (b)) Component (b): a nonionic surfactant represented by the following general formula (b1): R b -O-(EO) s -H (b1) [In the formula, R b is a secondary alkyl group having 8 to 24 carbon atoms, EO is an ethyleneoxy group, and s is the average number of moles added, which is a number greater than 0 and less than 7. (c) Component: Cationic surfactant

[0119] <18> The object is a textile or a hard surface; <17> The sterilization and cleaning method described in

[0120] <19> The treatment liquid <1> ~ <16> It is prepared using the liquid detergent composition according to any one of the above. <17> or <18> The sterilization and cleaning method described in

[0121] <20> The treatment liquid contains component (a) in an amount of preferably 2 ppm or more, more preferably 10 ppm or more, even more preferably 80 ppm or more, and preferably 5000 ppm or less, more preferably 1000 ppm or less, even more preferably 250 ppm or less. <17> ~ <19> The sterilization and cleaning method according to any one of the above.

[0122] <21> The treatment liquid contains component (b) in an amount of preferably 0.5 ppm or more, more preferably 5 ppm or more, even more preferably 20 ppm or more, and preferably 2500 ppm or less, more preferably 1000 ppm or less, even more preferably 100 ppm or less. <17> ~ <20> The sterilization and cleaning method according to any one of the above. <22> The treatment solution contains component (c) in an amount of preferably 0.0005 ppm or more, more preferably 1 ppm or more, even more preferably 4 ppm or more, and preferably 1000 ppm or less, more preferably 250 ppm or less, even more preferably 25 ppm or less. <17> ~ <21> The sterilization and cleaning method according to any one of the above.

[0123] <23> The treatment liquid contains component (a) in an amount of preferably 30,000 ppm or more, more preferably 50,000 ppm or more, even more preferably 100,000 ppm or more, and preferably 500,000 ppm or less, more preferably 300,000 ppm or less, even more preferably 250,000 ppm or less. <17> ~ <19> The sterilization and cleaning method according to any one of the above.

[0124] <24> The treatment liquid contains component (b) in an amount of preferably 10,000 ppm or more, more preferably 20,000 ppm or more, even more preferably 25,000 ppm or more, and preferably 300,000 ppm or less, more preferably 150,000 ppm or less, even more preferably 100,000 ppm or less. <17> ~ <19> , <23> The sterilization and cleaning method according to any one of the above.

[0125] <25> The treatment liquid contains component (c) in an amount of preferably 10 ppm or more, more preferably 2000 ppm or more, even more preferably 5000 ppm or more, and preferably 100,000 ppm or less, more preferably 50,000 ppm or less, even more preferably 30,000 ppm or less. <17> ~ <19> , <23> , <24> The sterilization and cleaning method according to any one of the above.

[0126] <26> Use of a composition containing the following components (a), (b), and (c) as a liquid detergent composition: Component (a): Nonionic surfactant (excluding component (b)) Component (b): a nonionic surfactant represented by the following general formula (b1): R b -O-(EO) s -H (b1) [In the formula, R b is a secondary alkyl group having 8 to 24 carbon atoms, EO is an ethyleneoxy group, and s is the average number of moles added, which is a number greater than 0 and less than 7. (c) Component: Cationic surfactant

[0127] <27> The liquid detergent composition is a liquid detergent composition for fabrics or a liquid detergent composition for hard surfaces; <26> Use as described in.

[0128] <28> the value of (a) / (b), which is the mass ratio of the content of the component (a) to the content of the component (b) in the composition, is preferably 0.1 or more, more preferably 1 or more, even more preferably 2 or more, and is preferably 50 or less, more preferably 10 or less; <26> or <27> Use as described in.

[0129] <29> A use of a composition containing the following components (a), (b), and (c) as a liquid detergent composition: Component (a): Nonionic surfactant (excluding component (b)) Component (b): a nonionic surfactant represented by the following general formula (b1): R b -O-(EO) s -H (b1) [In the formula, R b is a secondary alkyl group having 8 to 24 carbon atoms, EO is an ethyleneoxy group, and s is the average number of moles added, which is a number greater than 0 and less than 7. (c) Component: Cationic surfactant

[0130] <30> The liquid detergent composition is a liquid detergent composition for fabrics or a liquid detergent composition for hard surfaces; <29> The uses described in.

[0131] <31> the value of (a) / (b), which is the mass ratio of the content of the component (a) to the content of the component (b) in the composition, is preferably 0.1 or more, more preferably 1 or more, even more preferably 2 or more, and is preferably 50 or less, more preferably 10 or less; <26> or <27> The uses described in. [Example]

[0132] Liquid detergent compositions shown in Tables 1 to 3 were prepared and their bactericidal properties were evaluated by the following method. The results are shown in Tables 1 to 3. Table 4 also shows formulation examples of the liquid detergent compositions of the present invention. The liquid detergent compositions in the tables had a pH (25°C) of 9.0. The liquid detergent compositions of the examples in Tables 1 to 3 had excellent detergency against stains adhering to textile products. The liquid detergent compositions of the formulation examples in Table 4 also had excellent bactericidal effect and excellent detergency against stains adhering to textile products.

[0133] <Test method for bactericidal activity> (1) Micrococcus sp. isolated from worn clothing was streaked onto a plate containing SCD-LP agar medium, and after 24 hours of incubation at 37°C, the bacteria were scraped off with a platinum loop and diluted with sterile water to a bacterial concentration of OD600 = 0.4. (2) 0.5 ml of the suspension in (1) was added to 4.5 ml of the test solution (a liquid detergent composition in the table diluted with water to a concentration of 0.83 g / L when in contact with the bacterial cells), and the mixture was allowed to come into contact for 5 minutes. Sterilized tap water was used for all tests. (3) The test solution that had been in contact with the bacteria in (2) was serially diluted with the LP dilution solution, and the number of colonies that grew on the SCD-LP agar medium was counted using the pour plate method. The bactericidal activity value was calculated using the following formula. In this evaluation, a higher bactericidal activity value indicates a superior bactericidal effect. Bactericidal activity value = LogA - LogB A: Average number of bacteria before contact with the test solution (CFU / ml) B: Average number of bacteria after contact with the test solution (CFU / ml)

[0134] [Table 1]

[0135] [Table 2]

[0136] [Table 3]

[0137] [Table 4]

[0138] The ingredients in the table are as follows: <Component (a)> (a-1): Polyoxypropylene-polyoxyethylene mixed alkyl ether (a mixed alkyl group of 12 carbon atoms / 14 carbon atoms (7 / 3, mass ratio) to which polyoxypropylene and polyoxyethylene groups are bonded in that order, with the average number of added moles of oxypropylene groups being 3.7 moles and the average number of added moles of oxyethylene groups being 16.5 moles) (a-2): Polyoxyethylene-polyoxypropylene-polyoxyethylene mixed alkyl ether (a mixed alkyl group of 12 carbon atoms / alkyl group of 14 carbon atoms (7 / 3, mass ratio) to which polyoxyethylene groups, polyoxypropylene groups, and polyoxyethylene groups are bonded in that order, with the average number of moles of oxyethylene groups added being 9 moles and 9 moles, and the average number of moles of oxypropylene groups added being 2 moles) (a-3): Polyoxyethylene mixed alkyl ether (a polyoxyethylene group is bonded to a mixed alkyl group of 12 carbon atoms / 14 carbon atoms (7 / 3, mass ratio), and the average number of moles of oxyethylene groups added is 10 moles) (a-4): Fatty acid methyl ester ethoxylate (fatty acid having 16 to 18 carbon atoms, average number of added ethyleneoxy groups: 15)

[0139] <(b) Component> (b-1): a nonionic surfactant in which an average of 3 moles of ethylene oxide is added to a secondary alcohol having 12 to 14 carbon atoms; R in the general formula (b1) b is a secondary alkyl group having 12 to 14 carbon atoms, and s is 3. (b-2): a nonionic surfactant in which an average of 5 moles of ethylene oxide is added to a secondary alcohol having 12 to 14 carbon atoms; R in the general formula (b1) b is a secondary alkyl group having 12 to 14 carbon atoms, and s is 5.

[0140] <Component (b') (comparison component of component (b))> (b'-1): A nonionic surfactant in which an average of 7 moles of ethylene oxide is added to a secondary alcohol having 12 to 14 carbon atoms (for convenience, when applied to the structure of general formula (b1), R in general formula (b1) b corresponds to a secondary alkyl group having 12 to 14 carbon atoms, and s corresponds to a nonionic surfactant having 7. (b'-2): A nonionic surfactant in which an average of 3 moles of ethylene oxide is added to a primary alcohol having 12 to 14 carbon atoms (for convenience, when applied to the structure of general formula (b1), R in general formula (b1) b corresponds to a primary alkyl group having 12 carbon atoms, and s corresponds to a nonionic surfactant having 3.

[0141] <(c) component> (c-1): N-ethyl-N,N-dimethyltetradecylammonium ethyl sulfate (Cortamin 40ES, manufactured by Kao Corporation) (c-2): N,N-didecyl-N-ethyl-N-methylammonium ethyl sulfate (Cortamin D10-ES, manufactured by Kao Corporation) (c-3): Octenidine dihydrochloride (Tokyo Chemical Industry Co., Ltd.) (c-4): Dioctyldimethylammonium chloride

[0142] <Other ingredients> Protease: Kao Corporation Amylase: Novozymes Calcium chloride: Tokuyama Corporation Coconut oil fatty acids: Lunac L55, manufactured by Kao Corporation Acrylic acid polymer: Aqualic LK-165, manufactured by Nippon Shokubai Co., Ltd. Butyl carbitol: Nippon Nyukazai Co., Ltd. Citric acid: Fuso Chemical Co., Ltd. Monoethanolamine: Nippon Shokubai Co., Ltd. Ion-exchanged water

Claims

1. A liquid detergent composition comprising the following components (a), (b), and (c): Component (a): Nonionic surfactant (excluding component (b)) Component (b): a nonionic surfactant represented by the following general formula (b1): 2 ｂ --(EO) ｓ -2 (11) [In the formula, R ｂ is a secondary alkyl group having 8 to 24 carbon atoms, EO is an ethyleneoxy group, and s is the average number of moles added, which is a number greater than 0 and less than 7. Component (c): cationic surfactant

2. The liquid detergent composition according to claim 1, wherein in the general formula (b1) of component (b), s is a number greater than 0 and not greater than 5.

3. 3. The liquid detergent composition according to claim 1, wherein the component (a) is one or more nonionic surfactants selected from the group consisting of nonionic surfactants represented by the following general formula (a1) and nonionic surfactants represented by the following general formula (a2): 2 １ａ --〔EO) ｐ / (O) ｑ 〕-2 (a1) [wherein R １ａ represents an aliphatic hydrocarbon group having from 10 to 24 carbon atoms, EO represents an ethyleneoxy group, PO represents a propyleneoxy group, p and q represent the average number of moles added, p is a number from 0 to 40, q is a number from 0 to 6, the sum of p and q is 1 or more, and when EO and PO are contained, EO and PO may be bonded in a block manner or in a random manner. R ２ａ -(AO)--(AO) ｒ -R ３ａ (a2) [In the formula, R ２ａ is an aliphatic hydrocarbon group having 9 to 18 carbon atoms, and R ３ａ is a hydrogen atom or a methyl group, CO is a carbonyl group, and AO is one or more alkyleneoxy groups selected from alkyleneoxy groups having 2 carbon atoms and alkyleneoxy groups having 3 carbon atoms. When AO contains an alkyleneoxy group having 2 carbon atoms and an alkyleneoxy group having 3 carbon atoms, the alkyleneoxy group having 2 carbon atoms and the alkyleneoxy group having 3 carbon atoms may be bonded in a block manner or a random manner. r is the average number of moles added and is a number of 1 to 70.

4. 3. The liquid detergent composition according to claim 1 or 2, which is for textiles or hard surfaces.

5. 3. The liquid detergent composition according to claim 1, wherein the mass ratio (a) / (b) of the content of the component (a) to the content of the component (b) is 2 or more.

6. A sterilizing and cleaning method comprising contacting an object containing microorganisms with a treatment liquid containing the following components (a), (b), and (c), and water: Component (a): Nonionic surfactant (excluding component (b)) Component (b): a nonionic surfactant represented by the following general formula (b1): 2 ｂ --(EO) ｓ -2 (11) [In the formula, R ｂ is a secondary alkyl group having 8 to 24 carbon atoms, EO is an ethyleneoxy group, and s is the average number of moles added, which is a number greater than 0 and less than 7. Component (c): cationic surfactant

7. The sterilizing and cleaning method according to claim 6, wherein the object is a textile product or a hard surface.

8. 8. The sterilizing and cleaning method according to claim 6 or 7, wherein the treatment liquid is prepared using the liquid detergent composition according to claim 1 or 2.

9. Use of a composition containing the following components (a), (b), and (c) as a liquid detergent composition: Component (a): Nonionic surfactant (excluding component (b)) Component (b): a nonionic surfactant represented by the following general formula (b1): 2 ｂ --(EO) ｓ -2 (11) [In the formula, R ｂ is a secondary alkyl group having 8 to 24 carbon atoms, EO is an ethyleneoxy group, and s is the average number of moles added, which is a number greater than 0 and less than 7. Component (c): cationic surfactant

10. 10. The use according to claim 9, wherein the liquid detergent composition is a liquid detergent composition for textiles or a liquid detergent composition for hard surfaces.

11. The use according to claim 9 or 10, wherein the value of (a) / (b), which is the mass ratio of the content of component (a) to the content of component (b) in the composition, is 2 or more.