Disinfectant and cleaning agent composition for hard surfaces

Abstract

To provide a sterilizing and washing composition for hard surfaces that has high washing power to stubborn stains such as sebum soil and soap soil and high sterilizing power to microbes such as Staphylococcus aureus, and also has high compounding stability.SOLUTION: A sterilizing and washing composition for hard surfaces contains (a) 1 mass% or more and less than 10 mass% of a solvent with a LogP of less than 1.0, (b) 1.5 mass% or more and 10 mass% or less of an aromatic alcohol with a LogP of 1.3 or more, (c) a surfactant and water, with the mass ratio of the content of (a) to the content of (b), (a) / (b), of 0.10 or more and less than 1.0. The composition has a pH of 8 or more and 12 or less at 25°C.SELECTED DRAWING: None

Description

[Technical Field] 【0001】 The present invention relates to a disinfectant cleaning agent composition for hard surfaces and a method for disinfecting and cleaning hard surfaces. [Background technology] 【0002】 Residential environments often feature hard surfaces made of materials such as plastic, tiles, and metal, which accumulate various types of dirt and grime in daily life. Bathrooms and kitchens, in particular, are high-humidity environments where bacteria and other microorganisms thrive due to the presence of sebum, food stains, and soap residue. Therefore, when cleaning hard surfaces in bathrooms and kitchens, both cleaning and disinfecting power are desirable, and it has become standard practice for hard surface cleaners to include disinfecting components. 【0003】 Patent Document 1 discloses a detergent composition with excellent cleaning and disinfecting power, comprising an anionic surfactant and a combination of an antibacterial agent, such as a silver compound or polyhexamethylene biguanide, and polylysine. Patent documents 2 and 3 disclose a detergent composition that is based on a quaternary ammonium salt type cationic surfactant, benzyl alcohol, and butoxyethoxyethanol, and contains amphoteric surfactants or anionic surfactants in specific ratios, and exhibits excellent cleaning power against pink stains caused by microorganisms. Patent Document 4 discloses a surface disinfectant and cleaning agent composition comprising a betaine-type amphoteric surfactant, a specific aromatic alcohol, and a metal chelating agent in specific ratios, with a pH of 2 to 6. Patent Document 5 discloses a combination of two metal chelating agents, including a phosphonic acid-based metal chelating agent, and a detergent composition for hard surfaces containing a glycol-based solvent and a surfactant, with a specified mass ratio of anionic surfactant to metal chelating agent and a pH of 5.8 to 7.5. [Prior art documents] [Patent Documents] 【0004】 [Patent Document 1] Japanese Patent Publication No. 2020-76103 [Patent Document 2] Japanese Patent Publication No. 2014-132063 [Patent Document 3] Japanese Patent Publication No. 2014-132062 [Patent Document 4] Japanese Patent Publication No. 2015-113455 [Patent Document 5] Japanese Patent Publication No. 2018-150523 [Overview of the Initiative] [Problems that the invention aims to solve] 【0005】 As mentioned above, hard surfaces in household environments such as bathrooms accumulate various types of dirt, including soap scum and sebum. These types of dirt not only promote the growth of microorganisms but also inhibit the effectiveness of disinfectants against them. Therefore, disinfection and cleaning technologies that are effective against both dirt and microorganisms are desired. However, for example, when using a quaternary ammonium salt type cationic surfactant as a disinfectant, if an anionic surfactant is used in combination to thoroughly remove dirt, a complex is formed due to electrostatic interaction, which can reduce both the disinfecting effect and cleaning power, resulting in unsatisfactory results. Furthermore, in weakly alkaline to alkaline solutions, there was a problem in that the effectiveness against microorganisms, such as Staphylococcus aureus, decreased on many hard surfaces. Moreover, disinfectant cleaning agents are often formulated as a single-component type, and excellent consistency in terms of appearance and other aspects of formulation is desirable. 【0006】 The present invention provides a disinfectant cleaning agent composition for hard surfaces that has good cleaning power against stubborn dirt such as sebum and soap scum, and excellent bactericidal power and formulation stability against microorganisms such as Staphylococcus aureus, as well as a method for cleaning hard surfaces using the same. [Means for solving the problem] 【0007】 The present invention relates to a germicidal cleaning composition for hard surfaces, which contains (a) a solvent having a LogP of less than 1.0 [hereinafter referred to as component (a)] at 1% by mass or more and less than 10% by mass, (b) an aromatic alcohol having a LogP of 1.3 or more [hereinafter referred to as component (b)] at 1.5% by mass or more and 10% by mass or less, (c) a surfactant [hereinafter referred to as component (c)] and water, the mass ratio (a) / (b) of the content of component (a) to the content of component (b) is 0.10 or more and less than 1.0, and the pH at 25°C is 8 or more and 12 or less. 【0008】 The present invention also relates to a method for sterilizing and cleaning hard surfaces, which comprises rinsing the hard surface without rubbing after attaching the germicidal cleaning composition for hard surfaces of the present invention thereto. 【Effects of the Invention】 【0009】 According to the present invention, there are provided a germicidal cleaning composition for hard surfaces having good detergency against stubborn stains such as sebum stains and soap scum, excellent germicidal power against microorganisms such as Staphylococcus aureus, and excellent blending stability, and a method for cleaning hard surfaces using the same. 【Modes for Carrying Out the Invention】 【0010】 〔Germicidal Cleaning Composition for Hard Surfaces〕 The germicidal cleaning composition for hard surfaces of the present invention contains component (a) at 1% by mass or more and less than 10% by mass, component (b) at 1.5% by mass or more and 10% by mass or less, component (c) and water, the mass ratio (a) / (b) of the content of component (a) to the content of component (b) is 0.10 or more and less than 1.0, and the pH at 25°C is 8 or more and 12 or less. 【0011】 Component (a) is a solvent having a LogP of less than 1.0. The germicidal cleaning composition for hard surfaces of the present invention preferably contains a glycol ether solvent as component (a). As component (a), one or more solvents selected from the following compounds (a1) to (a3) are preferred. (a2) is an example of a glycol ether solvent. (a1): An aliphatic alcohol having a molecular weight of 60 or more and 500 or less and a LogP of less than 1.0 (a2): An aliphatic glycol ether having a molecular weight of 60 or more and 500 or less and a LogP of less than 1.0 (a3): An aliphatic diol having a molecular weight of 60 or more and 500 or less and a LogP of less than 1.0 【0012】 (a) From the viewpoint of the bactericidal effect, the LogP of the component is preferably 0 or more, more preferably 0.5 or more, and from the viewpoint of formulation stability, it is less than 1.0. 【0013】 In the present invention, the LogP value is a coefficient indicating the affinity of an organic compound for water and 1-octanol. The 1-octanol / water partition coefficient P is the partition equilibrium when a trace amount of a compound dissolves as a solute in the two liquid phases of 1-octanol and water, and is the ratio of the equilibrium concentrations of the compound in each solvent, and is generally expressed in the form of the logarithm LogP to the base 10. LogP values of many compounds have been reported. For example, many values are listed in databases available from Daylight Chemical Information Systems, Inc. (Daylight CIS), etc., and can be referred to. When there is no measured LogP value, it can be calculated using programs such as "PerkinElmer ChemDraw 19.1" available from HP of PerkinElmer. This program can obtain the LogP value. 【0014】 The fragment approach is based on the chemical structure of the compound and takes into account the number of atoms and the type of chemical bonds (cf. A. Leo, Comprehensive Medicinal Chemistry, Vol.4, C. Hansch, P.G. Sammens, J.B. Taylor and C.A. Ramsden, Eds., p.295, Pergamon Press, 1990). In the present invention, if there is a measured LogP value, that value is used; if not, the LogP value calculated by the program PerkinElmer ChemDraw 19.1 is used. 【0015】 (a1) may be an alcohol whose main chain is an aliphatic hydrocarbon group. If the main chain of (a1) has a side chain, the side chain may contain a heteroatom. Examples of (a1) include one or more aliphatic alcohols with a molecular weight of 60 or more and a LogP of less than 1.0, selected from 1-propanol (molecular weight: 60, LogP: 0.55), 2-propanol (molecular weight: 60, LogP: 0.38), 1-butanol (molecular weight: 74, LogP: 0.97), 2-butanol (molecular weight: 74, LogP: 0.87), tert-butanol (molecular weight: 74, LogP: 0.60), and cyclopentanol (molecular weight: 86, LogP: 0.86). Other examples of (a1) include 3-methoxy-3-methylbutanol (molecular weight: 118, LogP: 0.21). 【0016】 As for (a2), aliphatic glycol ethers with a molecular weight of 60 or more and 500 or less and a LogP of less than 1.0, compounds represented by the following general formula (a-2) with a LogP of less than 1.0 are preferred. R 1a O-(R 2a O) n -H (a-2) (In the formula, R 1a R is an aliphatic hydrocarbon group having 1 to 8 carbon atoms, 2a (where n is an alkylene group having 2 or 3 carbon atoms, and n is an integer between 1 and 4.) 【0017】 R 1a From the viewpoint of bactericidal effect, alkyl or alkenyl groups having 3 to 6 carbon atoms are preferred. From the viewpoint of sterilization effect, n is preferably 3 or less, more preferably 2 or less. 【0018】 (a2) is specifically one or more selected from propyl propylene glycol (molecular weight: 176, LogP: 0.88), butyl glycol (molecular weight: 118, LogP: 0.81), propyl propylene glycol (molecular weight: 118, LogP: 0.71), butyl diglycol (molecular weight: 162, LogP: 0.66), 2-tert-butoxyethanol (molecular weight: 118, LogP: 0.45), isobutyl diglycol (molecular weight: 162, LogP: 0.07), methyl propylene glycol (molecular weight: 90, LogP: 0.66), and methyl glycol (molecular weight: 76, LogP: -0.43). From the viewpoint of the bactericidal effect, butyl diglycol is preferred. 【0019】 As the aliphatic diol (a3) having a molecular weight of 60 or more and 500 or less and a LogP of less than 1.0, a compound represented by the following general formula (a-3) and having a LogP of less than 1.0 is preferred. Note that (a2) is not included in (a3). R 3a -CH(OH)-(CH2) m -CH2OH (a-3) (In the formula, R 3a is a hydrogen atom, an aliphatic hydrocarbon group having 1 to 7 carbon atoms, R 4a O, or R 4a OCH2, and R 4a is an aliphatic hydrocarbon group having 1 to 7 carbon atoms, and m is an integer of 0 or 1 or more and 6 or less. However, the total number of carbon atoms in the compound is 4 or more and 10 or less.) 【0020】 R 3a From the viewpoint of the bactericidal effect, a hydrogen atom or an alkyl group or alkenyl group having 2 to 7 carbon atoms is preferred, an alkyl group or alkenyl group having 3 to 7 carbon atoms is more preferred, and an alkyl group or alkenyl group having 4 to 7 carbon atoms is even more preferred. R 4a is preferably an alkyl group or alkenyl group having 2 to 7 carbon atoms, more preferably an alkyl group or alkenyl group having 3 to 7 carbon atoms, and even more preferably an alkyl group or alkenyl group having 4 to 7 carbon atoms. m is preferably 0 or 1 from the viewpoint of sterilization effect. 【0021】 (a3) specifically refers to one or more selected from 1,2-hexanediol (molecular weight: 118, LogP: 0.85), 1,2-pentanediol (molecular weight: 104, LogP: 0.43), propylene glycol (molecular weight: 76, LogP: -0.47), 1,6-hexanediol (molecular weight: 118, LogP: 0.60), 1,2-butanediol (molecular weight: 90, LogP: 0.01), 1,4-butanediol (molecular weight: 90, LogP: -0.23), 1,3-butanediol (molecular weight: 90, LogP: 0.0.37), 1,5-pentanediol (molecular weight: 104, LogP: 0.19), and pentyl glyceryl ether (molecular weight: 162, LogP: 0.69). 【0022】 (a) Component is preferably a glycol ether solvent from the viewpoint of bactericidal effect, more preferably one or more aliphatic glycol ethers selected from (a2) having a molecular weight of 60 or more and 500 or less and a LogP of less than 1.0, and even more preferably a compound represented by general formula (a-2) with a LogP of less than 1.0. 【0023】 (b) The component is an aromatic alcohol with a LogP of 1.3 or higher. (b) The LogP value of component (b) is preferably 1.3 or higher, more preferably 1.4 or higher, from the viewpoint of bactericidal effect and distribution of component (b) from the aqueous phase to the bacterial cells, and preferably 3.0 or lower, more preferably 2.0 or lower, and even more preferably 1.5 or lower, from the viewpoint of bactericidal effect and formulation stability. 【0024】 (b) The aromatic alcohol of component (b) is a compound having an aromatic group and a hydroxyl group, preferably having an aromatic group and a hydroxyl group and having a molecular weight of 106 to 250. The aromatic group is an aromatic hydrocarbon group, such as a phenyl group, a benzyl group, or a phenethyl group. 【0025】 (b) From the viewpoint of bactericidal effect and formulation stability, the compound represented by the following general formula (b-1) is preferred. R 1b O-(R 2b O) l -H (b-1) (In the formula, R 1b is a hydrocarbon group having an aromatic group and having a total of 6 to 10 carbon atoms, l is an integer between 0 and 2, and R 2b (This refers to an alkylene group having 2 to 4 carbon atoms. However, the molecular weight of the compound is between 10⁶ and 250.) 【0026】 R 1b The total number of carbon atoms is the number of carbon atoms including the aromatic group, R 1b The total number of carbon atoms is 6 or more from the viewpoint of bactericidal effect, and 10 or less, preferably 9 or less, and more preferably 8 or less from the viewpoint of formulation stability. 1b These are aromatic hydrocarbon groups, including phenyl, benzyl, and phenethyl groups. In general formula (b-1), l is preferably 1 or less, and more preferably 0, from the viewpoint of bactericidal effect. 【0027】 (b) Specifically, from the viewpoint of bactericidal effect and formulation stability, one or more of the following can be selected: benzyl alcohol (molecular weight: 108, LogP: 1.46), phenoxyethanol (molecular weight: 138, LogP: 1.39), 2-phenylethanol (molecular weight: 122, LogP: 1.74), 3-phenyl-1-propanol (molecular weight: 136, LogP: 2.16), and cinnamyl alcohol (molecular weight: 134, LogP: 1.98), benzyl glycol (molecular weight: 152, LogP: 1.30), propylene glycol monophenyl ether (molecular weight: 152, LogP: 1.71), and dipropylene glycol monophenyl ether (molecular weight: 210, LogP: 1.87). (b) Component is preferably one or more selected from benzyl alcohol and phenoxyethanol. (b) Component may be a combination of benzyl alcohol and phenoxyethanol. The present invention preferably contains one or more disinfectant cleaning agents for hard surfaces as component (b), selected from benzyl alcohol and phenoxyethanol. 【0028】 Component (c) of the present invention is a surfactant. (c) The component may be a surfactant selected from nonionic surfactants, anionic surfactants, cationic surfactants, and amphoteric surfactants. (c) The component may be selected from surfactants (excluding aromatic alcohols) with a LogP of 1.0 or higher. 【0029】 Examples of nonionic surfactants include polyoxyalkylene alkyl ethers having an alkyl group with 10 to 18 carbon atoms, polyoxyalkylene alkenyl ethers having an alkenyl group with 10 to 18 carbon atoms, polyoxyalkylene sorbitan fatty acid esters having a fatty acid group with 10 to 18 carbon atoms, alkyl glycosides having an alkyl group with 8 to 18 carbon atoms, alkyl polyglycosides having an alkyl group with 8 to 18 carbon atoms, sucrose fatty acid esters having a fatty acid group with 8 to 18 carbon atoms, alkyl polyglyceryl ethers having an alkyl group with 8 to 18 carbon atoms, and alkyl monoglyceryl ethers having an alkyl group with 8 to 18 carbon atoms. The nonionic surfactant is preferably an alkyl glyceryl ether having an alkyl group with 8 to 18 carbon atoms. 【0030】 Examples of anionic surfactants include those having one or more hydrocarbon groups and one or more groups selected from the group consisting of sulfonic acid groups, sulfate ester groups, and carboxylic acid groups. Examples of anionic surfactants include alkyl or alkenylbenzenesulfonic acid or its salts, polyoxyalkylene alkyl or alkenyl ether sulfate or its salts, alkyl or alkenyl sulfate or its salts, and fatty acids or their salts. Alkyl sulfate or its salts are preferred as the anionic surfactant. The oxyalkylene group of the polyoxyalkylene alkyl or alkenyl ether sulfate ester or its salt is preferably an oxyethylene group. Furthermore, the average number of moles of oxyalkylene groups added to the polyoxyalkylene alkyl or alkenyl ether sulfate ester salt is preferably 1 to 10. Examples of fatty acids or their salts include fatty acids or their salts having 10 to 18 carbon atoms. The hydrocarbon group of the anionic surfactant, and more preferably the alkyl or alkenyl group, has 10 to 18 carbon atoms. Furthermore, the salt of the anionic surfactant is preferably an alkali metal salt such as a sodium salt or a potassium salt. The amount of the anionic surfactant is based on the compound in which the counterion is replaced with a sodium ion. 【0031】 Examples of cationic surfactants include quaternary ammonium salt type cationic surfactants. These include quaternary ammonium salt type cationic surfactants in which one or two of the groups bonded to the nitrogen atom are hydrocarbon groups having 8 to 16 carbon atoms, and the remaining groups are selected from the group consisting of alkyl groups having 1 to 3 carbon atoms, hydroxyalkyl groups having 1 to 3 carbon atoms, and arylalkyl groups (such as benzyl groups). Among these, quaternary ammonium salt type cationic surfactants with bactericidal properties are preferred, and from the viewpoint of bactericidal properties, quaternary ammonium salt type cationic surfactants having a benzyl group are preferred. The amount of cationic surfactant is based on the compound in which the counterion is replaced with a chloride ion. 【0032】 From the viewpoint of foaming, amphoteric surfactants are preferred that have an alkyl group with 8 to 22 carbon atoms. Furthermore, in these amphoteric surfactants, the number of carbon atoms in the alkyl group is preferably 10 or more, more preferably 11 or more, and more preferably 18 or less, and more preferably 13 or less. From the viewpoint of cleaning power and foaming, it is preferable to use one or more amphoteric surfactants selected from the group consisting of alkyl betaine, alkylamide betaine, alkyl sulfobetaine, alkyl hydroxysulfobetaine, alkylamide hydroxysulfobetaine, alkylamino fatty acid salt, and alkylamine oxide. The amphoteric surfactant is preferably selected from the group consisting of alkyl (8 to 22 carbon atoms) amidopropyl betaine and alkyl (8 to 22 carbon atoms) hydroxysulfobetaine, and more preferably selected from the group consisting of (3-lauramidopropyl)dimethylbetaine and lauryldimethylhydroxysulfobetaine. 【0033】 (c) Component is preferably one or more selected from nonionic surfactants, anionic surfactants and amphoteric surfactants from the viewpoint of cleaning power, foaming, bactericidal effect and storage stability, and more preferably one or more selected from alkyl monoglyceryl ether having an alkyl group having 6 to 18 carbon atoms, alkyl sulfate ester salts of alkyl groups having 10 to 18 carbon atoms, and alkyl (8 to 22 carbon atoms) amidopropyl betaine. The bactericidal cleaning agent composition for hard surfaces of the present invention preferably contains an alkyl monoglyceryl ether having an alkyl group having 6 to 18 carbon atoms as component (c). 【0034】 The hard surface disinfectant cleaning agent composition of the present invention contains component (a) in an amount of 1% by mass or more, preferably 1.2% by mass or more, more preferably 1.5% by mass or more, and less than 10% by mass, preferably 5.0% by mass or less, more preferably 3.0% by mass or less. 【0035】 The hard surface disinfectant cleaning agent composition of the present invention contains component (b) in an amount of 1.5% by mass or more, preferably 2.0% by mass or more, more preferably 2.5% by mass or more, and 10% by mass or less, preferably 5.0% by mass or less, more preferably 3.0% by mass or less. 【0036】 The hard surface disinfectant cleaning agent composition of the present invention has a total content of component (a) and component (b) that is preferably 2.5% by mass or more, more preferably 3% by mass or more, even more preferably 4% by mass or more, and even more preferably 4.5% by mass or more, from the viewpoint of disinfectant effect, and preferably 10% by mass or less, more preferably 8% by mass or less, and even more preferably 6% by mass or less, from the viewpoint of formulation stability. 【0037】 The hard surface disinfectant cleaning agent composition of the present invention has a mass ratio (a) / (b) of the content of component (a) to the content of component (b) of 0.10 or more, preferably 0.2 or more, more preferably 0.5 or more, and less than 1.0, preferably 0.9 or less, more preferably 0.8 or less, and even more preferably 0.7 or less. 【0038】 The hard surface disinfectant cleaning agent composition of the present invention contains component (c) preferably in an amount of 1.0% by mass or more, more preferably 3.0% by mass or more, and preferably 10% by mass or less, and more preferably 8.0% by mass or less. 【0039】 The hard surface disinfectant cleaning agent composition of the present invention preferably has a mass ratio (b) / (c) of 0.1 or more, more preferably 0.2 or more, even more preferably 0.3 or more, and preferably 2.0 or less, more preferably 1.5 or less, and even more preferably 1.0 or less. 【0040】 The hard surface disinfectant cleaning agent composition of the present invention has a mass ratio [(a)+(b)] / (c) of the content of component (c) to the total content of component (a) and component (b) which is preferably 0.7 or more, more preferably 0.8 or more, and even more preferably 0.85 or more, and from the viewpoint of disinfectant effect, preferably 3 or less, more preferably 1.5 or less, and even more preferably 1 or less. 【0041】 The hard surface disinfectant and cleaning agent composition of the present invention contains water. It may be a liquid composition containing water. The amount of water used is such that the total amount of the composition is 100% by mass. 【0042】 Furthermore, the hard surface disinfectant cleaning agent composition of the present invention may also contain solvents other than components (a) and (b) (hereinafter referred to as "other solvents"). That is, the hard surface disinfectant cleaning agent composition of the present invention may contain solvents selected from solvents with a LogP of 1.0 or higher and aromatic alcohols with a LogP of less than 1.3. Examples of other solvents include 1-hexanol (molecular weight: 102, LogP: 1.80), 1-pentanol (molecular weight: 88, LogP: 1.39), phenyl diglycol (molecular weight: 182, LogP: 1.23), and benzyl diglycol (molecular weight: 196, LogP: 1.15). The content of other solvents in the composition is preferably 100% by mass or less relative to the sum of the content of component (a) and the content of component (b). 【0043】 The disinfectant cleaning agent composition for hard surfaces of the present invention has a pH of 8 or higher, preferably 9 or higher, more preferably 10 or higher, and 12 or lower, preferably 11 or lower, at 25°C. The disinfectant cleaning agent composition for hard surfaces of the present invention is appropriately adjusted by adding a pH adjuster so that the pH at 25°C is within a predetermined range. Examples of pH adjusters include alkali metal hydroxides and alkali metal silicates. Examples of alkali metal hydroxides include sodium hydroxide and potassium hydroxide, and examples of alkali metal silicates include sodium silicate and potassium silicate, specifically sodium metasilicate, sodium orthosilicate, sodium silicate No. 1, sodium silicate No. 2, sodium silicate No. 3, sodium silicate No. 4, potassium silicate No. 1K, and potassium silicate No. 2K. 【0044】 The composition of the present invention may contain an alkanolamine as component (d). Component (d) helps to swell proteins in lipid / protein complex stains, penetrates the proteins, and enhances cleaning power, thereby preventing inhibition of the bactericidal effect by complex stains and allowing the original bactericidal power to be exerted. From the viewpoint of enhancing bactericidal activity along with increased cleaning power of proteins, low molecular weight alkanolamines are preferred, and alkanolamines with a molecular weight of 60 or more, and 300 or less, preferably 200 or less, and more preferably 150 or less are preferred. 【0045】 (d) The component is not particularly limited, but examples include alkyl mono or dialkanolamines or alkylene oxide adducts thereof (the alkylene oxide has 2 or 3 carbon atoms), where the alkanol group has 2 or 3 carbon atoms. Specific examples include one or more compounds selected from monoethanolamine, diethanolamine, triethanolamine, 1-amino-2-propanol, N-methylmonoethanolamine, N-methyldiethanolamine, and N,N-dimethylmonoethanolamine. From the viewpoint of cleaning performance for lipid / protein complex stains, it is preferably one or more selected from monoethanolamine, diethanolamine, 1-amino-2-propanol, and N-methylmonoethanolamine, and more preferably one or more selected from monoethanolamine, diethanolamine, and 1-amino-2-propanol. 【0046】 The composition of the present invention contains component (d) preferably in an amount of 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 1% by mass or less, more preferably 0.8% by mass or less, and even more preferably 0.6% by mass or less. 【0047】 The composition of the present invention may contain a metal chelating agent (hereinafter referred to as component (e)). It is not particularly limited as long as it has the ability to chelate and sequester metal ions, and specific examples include one or more metal chelating agents selected from (e1) to (e3) below. (e1) Amino acids such as aspartic acid, glutamic acid, and glycine, and their alkali metal salts or alkanolamine salts (e2) Aminocarboxylic acids such as nitrilotriacetic acid, iminodiacetic acid, ethylenediaminetetraacetic acid (EDTA), hydroxyethylethylenediaminetriacetic acid, diethylenetriaminepentaacetic acid, glycol etherdiaminetetraacetic acid, hydroxyethyliminodiacetic acid, triethylenetetraminehexaacetic acid, and diencholic acid, and their alkali metal salts or alkanolamine salts (e3) Organic acids such as diglycolic acid, oxydisuccinic acid, carboxymethyloxysuccinic acid, citric acid, lactic acid, tartaric acid, oxalic acid, malic acid, oxydisuccinic acid, gluconic acid, carboxymethylsuccinic acid, carboxymethyltartaric acid, and their alkali metal salts or alkanolamine salts 【0048】 Among these, hydroxycarboxylic acids such as citric acid and malic acid, aminocarboxylic acids such as ethylenediaminetetraacetic acid and hydroxyethylethylenediaminetriacetic acid, and their salts are preferred. In particular, one or more selected from citric acid, ethylenediaminetetraacetic acid, and their salts are preferred. As for the salt form, sodium salts, potassium salts, ammonium salts, and alkanolamine salts are preferred. 【0049】 The composition of the present invention preferably contains component (e) in an amount of 0.5% by mass or more, more preferably 1% by mass or more, even more preferably 2% 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. 【0050】 The hard surface disinfectant and cleaning agent composition of the present invention may optionally contain fragrances, dyes, preservatives, antioxidants, stabilizers, hydrotopes, enzymes, bleaches, surface modifiers, thickeners, etc., in order to increase the added value of the product (except for components (a) to (e) above). 【0051】 Hydrotopes that can be used in the hard surface disinfectant cleaning agent composition of the present invention may include one or more selected from cumenesulfonic acid, p-toluenesulfonic acid, m-xylenesulfonic acid, naphthalenesulfonic acid, 7-methyl-1-naphthalenesulfonic acid, 8-methyl-2-naphthalenesulfonic acid, 5-methyl-2-naphthalenesulfonic acid, and salts thereof. Preferably, one or more selected from cumenesulfonic acid, p-toluenesulfonic acid, m-xylenesulfonic acid, naphthalenesulfonic acid, and salts thereof are used, and more preferably, one or more selected from cumenesulfonic acid, p-toluenesulfonic acid, m-xylenesulfonic acid, and salts thereof are used. Preferred forms of salts are sodium salts, potassium salts, ammonium salts, and alkanolamine salts. The hard surface disinfectant cleaning agent composition of the present invention contains a hydrotope agent in an amount of preferably 0.01% by mass or more, more preferably 0.1% by mass or more, even more preferably 1% by mass or more, even more preferably 2% by mass or more, and preferably 10% by mass or less, more preferably 5% by mass or less, and even more preferably 3% by mass or less. 【0052】 The bacteria targeted in this invention include both Gram-positive and Gram-negative bacteria. Examples of Gram-positive bacteria include Staphylococcus aureus, while examples of Gram-negative bacteria include Escherichia coli and Methylobacterium, which are the main components of pink stains in bathrooms. 【0053】 The hard surface disinfectant cleaning agent composition of the present invention is suitably used for cleaning hard surfaces such as bathrooms, bathtubs, washbasins, tiles, powder rooms, washstands, mirrors, kitchen sinks, countertops, and water fixtures. It is suitably used for bathrooms. Here, "for bathrooms" refers not only to the bathroom itself, but also to other hard surface items present in the bathroom, such as bathtubs and washbasins. 【0054】 The hard surface disinfectant cleaning agent composition of the present invention is preferably used by spraying or applying it to a hard surface to which sebum, soap scum, and the like are attached. A spray means can be used for spraying or applying. The present invention provides a hard surface disinfectant cleaning agent article in a spray container, which is obtained by filling the hard surface disinfectant cleaning agent composition of the present invention into a container equipped with a sprayer. 【0055】 The container equipped with a sprayer for filling the hard surface disinfectant cleaning agent article of the present invention in a spray container includes manual spraying devices that do not use propellants, such as trigger-type spray containers and pump-type spray containers, and aerosols that use propellants. The container equipped with the sprayer is preferably a trigger-type spray that can spray or apply the contents in droplet or foam form. 【0056】 In the present invention, when using a trigger-type spray equipped with a mechanism for spraying the composition of the present invention in droplet form, the nozzle diameter of the spray nozzle of the spray container containing the composition is preferably in the range of 0.1 mm or more, more preferably 0.3 mm or more, and preferably 2 mm or less, and more preferably 1 mm or less, in order to ensure ease of spraying, that the sprayed droplets are not rough, that the spray is not linear, and that the sprayable area does not become extremely narrow. When using a trigger-type spray equipped with a mechanism for spraying in droplet form, the disinfectant cleaning agent article for hard surfaces in a spray container of the present invention sprays, preferably 0.1 mL or more, more preferably 0.3 mL or more, and preferably 5 mL or less, and more preferably 2 mL or less of the composition in a single operation. 【0057】 Furthermore, the disinfectant cleaning agent article for hard surfaces in a spray container of the present invention can use a trigger-type sprayer having a foam-forming mechanism. The trigger-type sprayer having a foam-forming mechanism is preferably of the direct-pressure type or the pressurized type, with the pressurized type being more preferable. When using a trigger-type sprayer equipped with a foam-forming mechanism, it is preferable to have a spin element and a liquid passage plate in a circular space with a diameter of 4 to 8 mm on which several rod-shaped protrusions are installed. Here, the spin element is a mechanism that imparts spin to the flow of liquid through the spin element and finally ejects it from the nozzle. For detailed structure, refer to Figure 4(b) of Japanese Patent Publication No. Hei 8-332422 and Japanese Patent Publication No. Hei 8-108102, and Figure 1 of Japanese Patent Publication No. 2002-68265. 【0058】 When using a trigger-type spray equipped with a foam-forming mechanism, the hard surface disinfectant cleaning agent article in the spray container of the present invention sprays, preferably 0.5 mL or more, more preferably 1 mL or more, preferably 30 mL or less, more preferably 15 mL or less, and even more preferably 5 mL or less of the composition in a single operation. 【0059】 Another component of the foam formation mechanism, the liquid passage plate, has a circular space with a diameter of 5 to 7 mm, in which rod-shaped protrusions are preferably placed, preferably 3 to 8 rod-shaped protrusions. When the plate is viewed in plan view, rectangular rod-shaped protrusions with a width of 0.8 to 1.2 mm and a length of 2 to 4 mm are preferable. Furthermore, the area occupied by the rod-shaped protrusions in the space excluding the rod-shaped protrusions is preferably 30% or more, more preferably 40% or more, preferably 90% or less, more preferably 80% or less, and even more preferably 70% or less. By installing such a liquid passage plate, the adhesion and retention of foam on the vertical surface is improved. 【0060】 The container for the hard surface disinfectant cleaning agent article in a spray bottle of the present invention can be a commonly used container. For example, it can be obtained from polyethylene, polypropylene, or polyethylene terephthalate as a raw material and can be manufactured by blow molding or the like. The wall thickness of the container may differ between the bottom and sides, preferably 0.01 to 2 mm, and the capacity of the container is preferably 100 to 1000 mL. The amount of hard surface disinfectant cleaning agent composition filled into the container is preferably 200 to 500 mL for ease of handling. The liquid should be filled while leaving a reasonable amount of empty space. 【0061】 [Method for sterilizing and cleaning hard surfaces] The present invention provides a method for cleaning hard surfaces, which involves applying the hard surface disinfectant cleaning agent composition of the present invention to the hard surface and then rinsing it without scrubbing. In the cleaning method of the present invention, disinfection may be performed along with the cleaning of the hard surface. In other words, the hard surface sterilization and cleaning method of the present invention uses the hard surface sterilization and cleaning agent composition of the present invention. A preferred embodiment of the composition is the same as the hard surface sterilization and cleaning agent composition of the present invention described above. The present invention provides a suitable method for sterilizing and cleaning hard surfaces, which involves applying the hard surface sterilizing and cleaning agent composition of the present invention to a hard surface, for example, a hard surface with sebum and / or soap scum attached, and then rinsing it without scrubbing. Hard surfaces in living environments generally have various microorganisms such as bacteria. Therefore, the hard surfaces targeted by the present invention may be hard surfaces with microorganisms such as bacteria present, and further, hard surfaces with sebum and / or soap scum attached and with microorganisms such as bacteria present. 【0062】 In the hard surface sterilization and cleaning method of the present invention, the hard surface sterilization and cleaning agent composition is applied to the hard surface, preferably in a foamy state. In the present invention, it is preferable to create a foamy state from the hard surface sterilization and cleaning agent composition using a trigger-type sprayer having a foam-forming mechanism. A pressurized sprayer is preferred as the trigger-type sprayer. The trigger-type sprayer having a foam-forming mechanism is the one described in the hard surface sterilization and cleaning agent composition of the present invention. 【0063】 More specifically, the present invention provides a method for sterilizing and cleaning hard surfaces, which involves applying the hard surface sterilizing and cleaning agent composition in its undiluted form to the hard surface, or applying the hard surface sterilizing and cleaning agent composition in its undiluted form to the hard surface without dilution; in other words, a sterilizing and cleaning method in which the hard surface sterilizing and cleaning agent composition is applied to the hard surface without dilution. Furthermore, a sterilizing and cleaning method in which the hard surface sterilizing and cleaning agent composition is applied to the hard surface without dilution is also provided. To apply the aforementioned hard surface disinfectant cleaning agent composition to a hard surface without dilution means not to intentionally dilute the cleaning agent composition with water or the like before applying it to the hard surface. For example, if the hard surface is covered with water droplets, or if water droplets adhere to the hard surface after the hard surface disinfectant cleaning agent composition has been applied, this can be understood as applying the hard surface disinfectant cleaning agent composition to the hard surface without dilution. In the present invention, it is preferable to apply the undiluted hard surface disinfectant cleaning agent composition as is, that is, without altering its composition, to the hard surface. For example, the hard surface disinfectant cleaning agent composition is applied to a dirty hard surface without being applied to a water-soaked sponge. After being applied to the hard surface, the composition of the hard surface disinfectant cleaning agent composition may change. That is, after being applied to the hard surface, the composition of the hard surface disinfectant cleaning agent composition may be diluted or concentrated. 【0064】 However, a concentrated composition containing components (a), (b), and (c) of the present invention may be prepared in advance, and the concentrated composition may be diluted with water to prepare the hard surface disinfectant cleaning agent composition of the present invention, which may then be applied to the hard surface. That is, a method of disinfecting and cleaning a hard surface may be to prepare a hard surface disinfectant cleaning agent composition of the present invention by diluting a concentrated composition containing components (a), (b), and (c) of the present invention with water, apply the hard surface disinfectant cleaning agent composition to the hard surface, and then rinse without scrubbing. 【0065】 Furthermore, the present invention includes a method for sterilizing and cleaning hard surfaces, in which the hard surface sterilizing and cleaning agent composition is applied to the hard surface, and then rinsed without scrubbing, preferably after being applied to the hard surface and left for a predetermined time, and then rinsed without scrubbing. In other words, it includes a method of sterilizing and cleaning in which the composition is applied without scrubbing using a flexible material such as a sponge or fingers, and left as is without applying any external force. After the composition is applied and left for a predetermined time as necessary, the hard surface is rinsed with water. When rinsing, external force (physical force) may be applied with hands, etc., or it may simply be rinsed with a stream of water. 【0066】 In the present invention's method for sterilizing and cleaning hard surfaces, the hard surface sterilizing and cleaning agent composition is applied to a hard surface with an area of ​​100 cm². 2 It is preferable to apply, coat, or spray the substance in a ratio of preferably 1 g or more, more preferably 3 g or more, even more preferably 5 g or more, and preferably 15 g or less, more preferably 12 g or less, and even more preferably 10 g or less. 【0067】 In the hard surface sterilization and cleaning method of the present invention, from the viewpoint of enhancing cleaning power, the hard surface sterilization and cleaning agent composition is applied to the hard surface and left to stand for preferably 10 seconds or more, more preferably 20 seconds or more, even more preferably 30 seconds or more, and even more preferably 40 seconds or more, and similarly, preferably 60 minutes or less, more preferably 30 minutes or less, even more preferably 20 minutes or less, and even more preferably 10 minutes or less. In this case, the time when the composition first adheres to the hard surface may be considered the start of the standing period. The predetermined time may be within this range. The temperature at which the product is left to stand is room temperature, for example, between 10°C and 30°C. 【0068】 Furthermore, in the sterilization and cleaning method for hard surfaces of the present invention, from the viewpoint of enhancing cleaning power, the liquid cleaning agent composition is allowed to adhere to the hard surface to be cleaned for preferably 10 seconds or more, more preferably 20 seconds or more, even more preferably 30 seconds or more, and even more preferably 40 seconds or more, and from the same viewpoint, preferably 60 minutes or less, more preferably 30 minutes or less, even more preferably 20 minutes or less, and even more preferably 10 minutes or less. 【0069】 In the hard surface sterilization and cleaning method of the present invention, the hard surface sterilization and cleaning agent composition for hard surfaces may be applied by immersing the dirty hard surface in the composition. However, from the viewpoint of efficiently increasing cleaning power, it is preferable to apply the composition to the dirty hard surface by spraying or coating it. In the present invention, it is preferable to apply the hard surface sterilization and cleaning agent composition for hard surfaces in liquid or foam form. The method for applying the aforementioned hard surface disinfectant cleaning agent composition to a hard surface to which dirt has adhered is preferably by spraying or coating, and it is preferable to spray it in droplet form or to coat it in foam form. It is preferable to use the hard surface disinfectant cleaning agent article in a spray container of the present invention described above. 【0070】 The present invention's method for sterilizing and cleaning hard surfaces is preferred as a method for sterilizing and cleaning bathrooms, kitchens, or toilets, and more particularly as a method for sterilizing and cleaning bathrooms. 【0071】 In the hard surface sterilization and cleaning method of the present invention, the hard surface sterilization and cleaning agent composition of the present invention is directly applied to the hard surface. Since it is sufficient to leave the surface with the composition applied, there is no need to apply external force during cleaning, such as scrubbing with a flexible material like a sponge. Furthermore, the sterilization and cleaning method for hard surfaces of the present invention involves applying the sterilization and cleaning agent composition for hard surfaces of the present invention, preferably in foam form, to the hard surface and leaving it there, thus allowing the composition to remain on the hard surface for a long time. The present invention provides a method for sterilizing and cleaning hard surfaces, which involves rinsing a hard surface to which the hard surface sterilizing and cleaning agent composition has been applied with water, preferably by leaving the hard surface to which the hard surface sterilizing and cleaning agent composition has been applied for a predetermined time, and then rinsing it with water. Because the hard surface sterilizing and cleaning agent composition of the present invention has good rinsability, rinsing can be completed with a small amount of water. [Examples] 【0072】 A disinfectant and cleaning agent composition for hard surfaces was prepared by combining the components listed in Tables 1-3. The pH (25°C) of each composition was adjusted with sodium hydroxide. The bactericidal properties and appearance (formulation stability) of these compositions were evaluated using the following method. The results are shown in Tables 1-3. In the table, all of the hard surface disinfectant cleaning compositions in the examples demonstrated good cleaning power against sebum and soap scum. Furthermore, the hard surface disinfectant cleaning compositions in the examples can be used, for example, in a hard surface disinfection and cleaning method that involves applying the foam to the hard surface using a trigger-type sprayer with a foam-forming mechanism. 【0073】 <Method for evaluating bactericidal activity> Staphylococcus aureus (strain NBRC12732) was cultured twice at 37°C for 24 hours on nutrient agar medium (Difco, prepared using Nutrient Agar reagent as instructed), scraped off the sample, and suspended and dispersed it in 3 mL of 1 / 2 Nutrient liquid medium (Difco, prepared using Nutrient Broth reagent at half the concentration specified in the instructions) containing approximately 0.5 g of glass beads (3-5 mm in diameter). The bacterial concentration was then increased to approximately 10 using the 1 / 2 Nutrient liquid medium. 9 The test bacterial suspension was prepared by mixing 3% BSA (Sigma Aldrich), which was filtered and sterilized, with distilled water in a 1:1 weight ratio to a concentration of cfu / mL. 10 μL of the test bacterial suspension was mixed with 1 mL of the hard surface disinfectant cleaning agent composition shown in the table (hereinafter also referred to as the test solution), and the mixture was allowed to come into contact with the bacteria at 25°C for 5 minutes. Then, 100 μL of this mixture was taken and suspended in 900 μL of LP diluent (prepared according to the instructions for Nissui Pharmaceutical Co., Ltd.) to inactivate the test solution. After further dilution with LP diluent, 100 μL of each diluent was mixed onto nutrient agar medium and incubated at 37°C for 48 hours. The number of surviving bacteria was calculated from the number of colonies obtained. Furthermore, the same procedure was performed using 0.05% Tween80 / distilled water instead of the test solution (10 μL of bacterial suspension was mixed with 1 mL of test solution, contacted for 5 minutes, and then mixed with the LP dilution) as a control procedure. The logarithmic difference between the number of surviving bacteria after the control procedure and the number of surviving bacteria after contact with the test solution was calculated as the bactericidal activity value and used as an indicator of bactericidal performance. Based on the calculated bactericidal activity value, the bactericidal activity was evaluated according to the following criteria. A score of "○" or higher according to the following criteria was considered a pass. ○: Bactericidal activity value against Staphylococcus aureus is 2.0 or higher. ×: Bactericidal activity value against Staphylococcus aureus is less than 2.0 【0074】 <Method for evaluating appearance> The hard surface disinfectant cleaning agent compositions shown in Tables 1-3 (Examples and Comparative Examples) were prepared, and the appearance of the compositions was visually observed immediately after preparation and evaluated according to the following criteria. A score of "○" or higher according to the following criteria was considered acceptable. 〇: Colorless and transparent ×: Separation or turbidity is observed. 【0075】 [Table 1] 【0076】 [Table 2] 【0077】 [Table 3] 【0078】 The ingredients listed in the table are as follows. Note that the appropriate amount of NaOH refers to the amount needed to bring the pH of the composition to the value shown in the table. The LogP values ​​for each compound are calculated using PerkinElmer ChemDraw 19.1. <Composition ingredients> (a) Component: Solvent with LogP less than 1.0 Butyl diglycol, LogP: 0.66 3-Methoxy-3-methylbutanol, LogP: 0.21 【0079】 (a') Component (comparative component of (a)): Non-aromatic solvent with a LogP of 1.0 or higher • 1-Hexanol, LogP: 1.8 1-Pentanol, LogP: 1.39 【0080】 (b) Components: Aromatic alcohols with a LogP of 1.3 or higher Benzyl alcohol, LogP: 1.46 Phenoxyethanol, LogP: 1.39 【0081】 (b') Component (comparative component of (b)): Aromatic alcohol with a LogP of less than 1.3 Phenylenidine, LogP: 1.23 Benzyl diglycol, LogP: 1.15 【0082】 (c) Ingredients: Surfactants • Amphoteric surfactants: Amhitol 20AB, Lauramidopropyl Betaine, Kao Corporation • Anionic surfactant: Emal 2F-HP, sodium lauryl sulfate, Kao Corporation Nonionic surfactant: Penetol GE-EH, 2-ethylhexylglyceryl ether, Kao Corporation

Claims

[Claim 1] (a) A solvent with a LogP of less than 1.0 [hereinafter referred to as component (a)], comprising 1% by mass or more and less than 10% by mass of one or more solvents selected from 3-methoxy-3-methylbutanol, propylpropylenediglycol, butyl glycol, propylpropylene glycol, butyl diglycol, 2-tert-butoxyethanol, isobutyl diglycol, methylpropylene glycol, and methyl glycol; (b) An aromatic alcohol with a LogP of 1.3 or higher [hereinafter referred to as component (b)], comprising 1.5% by mass or more and 10% by mass of one or more aromatic alcohols selected from benzyl alcohol and phenoxyethanol; (c) A surfactant [hereinafter referred to as component (c)] comprising 1.0% by mass or more and 10% by mass; and water. The mass ratio of the content of component (a) to the content of component (b), (a) / (b), is 0.5 or more and less than 1.0, and the total content of component (a) and component (b), (a)+(b), is 4% by mass or more and 10% by mass or less. A disinfectant cleaning agent composition for hard surfaces, wherein the pH at 25°C is 10 or more and 12 or less, and the (c) surfactant, if it includes a nonionic surfactant, is one or more selected from alkyl polyglyceryl ethers having an alkyl group having 8 to 18 carbon atoms and alkyl monoglyceryl ethers having an alkyl group having 8 to 18 carbon atoms; if it includes an anionic surfactant, is one or more selected from alkyl or alkenylbenzenesulfonic acid or a salt thereof, polyoxyalkylene alkyl or alkenyl ether sulfate or a salt thereof, alkyl or alkenyl sulfate or a salt thereof and fatty acids or salts thereof; and if it includes an amphoteric surfactant, is one or more selected from the group consisting of alkyl betaine, alkylamide betaine, alkyl sulfobetaine, alkyl hydroxysulfobetaine, alkylamide hydroxysulfobetaine, alkylamino fatty acid salt, and alkylamine oxide. [Claim 2] (c) The hard surface disinfectant cleaning agent composition according to claim 1, comprising an alkylglyceryl ether having an alkyl group with 8 to 18 carbon atoms as component. [Claim 3] Furthermore, the hard surface disinfectant cleaning agent composition according to claim 1 or 2, further comprising (d) an alkanolamine. [Claim 4] A disinfectant and cleaning agent composition for bathrooms, according to any one of claims 1 to 3, for use on hard surfaces. [Claim 5] A method for disinfecting and cleaning a hard surface, comprising applying the disinfectant cleaning agent composition for hard surfaces described in any one of claims 1 to 4 to the hard surface, and then rinsing it without scrubbing. [Claim 6] The method for disinfecting and cleaning a hard surface according to claim 5, wherein the disinfecting and cleaning agent composition for hard surfaces is applied to the hard surface in the form of foam. [Claim 7] The method for disinfecting and cleaning a hard surface according to claim 6, wherein the disinfectant cleaning agent composition for hard surfaces is made into a foam using a trigger-type sprayer having a foam-forming mechanism. [Claim 8] The method for sterilizing and cleaning a hard surface according to claim 7, wherein the trigger-type sprayer is a pressurized sprayer.

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