Liquid detergent for hard surface, and liquid detergent product for hard surface

Abstract

To enhance the foaming property and the disinfecting performance against mold of a liquid detergent for hard surface, taking into account that simply increasing the content of biocidal ingredient for stronger disinfection results in less foam production (lowered foamability) upon spraying.SOLUTION: A liquid detergent for hard surface comprises an alkyl polyglucoside (A1) represented by R-O-[G]n (where R is an alkyl group having 8 to 18 carbon atoms, G is a glycoside residue, and n is an average degree of polymerization of 1 to 5), a specific polyoxyalkylene alkyl ether (A2), and a specific compound (D).SELECTED DRAWING: None

Description

[Technical Field]

[0001] The present invention relates to liquid hard surface cleaners and liquid hard surface cleaner products. [Background technology]

[0002] As cleaners for hard surfaces of housing facilities and the like, foam spray-type cleaners that are discharged from a spray container tend to be preferred in terms of ease of use and cleaning effectiveness. As a foam spray-type liquid cleaner for hard surfaces, for example, Patent Document 1 proposes a toilet cleaner composition that combines cleaning power against urine stains, disinfecting properties against Staphylococcus aureus and Escherichia coli, and foaming properties when sprayed as a foam. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] Japanese Patent Application Publication No. 2020-105258 Summary of the Invention [Problem to be solved by the invention]

[0004] For example, cleaning agents for wet areas such as toilets and bathrooms are required to have antibacterial properties against mold (Cladosporium) so that the occurrence of dark stains can be prevented simply by applying the cleaning agent, without the need for scrubbing with a brush or the like. Furthermore, when cleaning toilets, for example, it is required that the liquid detergent for hard surfaces be sprayed in foam form onto the hard surface of a toilet bowl or the like, followed by rinsing with water, in order to exert good detergency. For this reason, the liquid detergent for hard surfaces is sprayed in a large amount of foam, which remains on the surface to be cleaned, thereby enhancing detergency. However, simply increasing the content of the antibacterial component in order to enhance the disinfecting properties reduces the amount of foam produced when sprayed (reduced foaming properties). The present invention has been made in view of the above circumstances, and has as its object to provide a liquid cleaning agent for hard surfaces that has good foaming properties and good disinfecting properties against mold. [Means for solving the problem]

[0005] The present invention has the following aspects. <1> Component (A1): an alkyl polyglycoside represented by the following formula (1), Component (A2): a polyoxyalkylene alkyl ether represented by the following formula (2), Component (D): one or more compounds selected from the group consisting of a compound represented by the following formula (d1), a compound represented by the following formula (d2), and a compound represented by the following formula (d3), A liquid cleaning agent for hard surfaces, comprising: RO-[G] n ···(1) [In formula (1), R is an alkyl group having 8 to 18 carbon atoms, G is a glycoside residue, and n is the average degree of condensation and is a number from 1 to 5.] R 1 -(A 1 O) m -OH (2) [In formula (2), R 1 is an aliphatic hydrocarbon group having 8 to 18 carbon atoms, and A 1 O is an oxyalkylene group having 2 to 3 carbon atoms, and m is A 1 The average number of repeats of O is between 31 and 70. R 13 -O-(AO) r -H (d1) [In formula (d1), R 13 represents hydrogen, a linear or branched alkyl group having 1 to 8 carbon atoms, or an aromatic hydrocarbon group having 6 to 8 carbon atoms; AO represents an oxyalkylene group having 2 to 3 carbon atoms; and r represents the average number of repetitions of (AO), which is 1 to 6. [ka] [In formula (d2), X is an oxygen atom or an alkylene group having 1 to 4 carbon atoms, each Y is independently a chlorine atom or a bromine atom, a, b, and c are independently 0 or a number from 1 to 3, h is 0 or 1, and i is 0 or 1.] [ka] [R in formula (d3) 16 is an alkylene group having 1 to 3 carbon atoms or an alkenylene group having 2 to 3 carbon atoms.] <2> 2. The liquid cleaning agent for hard surfaces according to claim 1, wherein the (A1 / A2 ratio) representing the mass ratio of the content of said component (A1) to the content of said component (A2) is 0.6 to 9. <3> 2. The liquid cleaning agent for hard surfaces according to claim 1, wherein the (A1+A2) / D ratio, which represents the mass ratio of the total content of the (A1) component and the (A2) component to the content of the (D) component, is 0.3 to 20. <4> 2. The liquid detergent for hard surfaces according to claim 1, wherein the total content of the component (A1) and the component (A2) is 0.6 to 5% by mass based on the total mass of the liquid detergent for hard surfaces.

[0006] <5> <1> ~ <4> A liquid cleaning agent product for hard surfaces, comprising: the liquid cleaning agent for hard surfaces according to any one of the items above; and a dispensing container containing the liquid cleaning agent for hard surfaces. [Effects of the Invention]

[0007] The present invention aims to provide a liquid cleaning agent for hard surfaces that has excellent foaming properties and antibacterial properties against mold. DETAILED DESCRIPTION OF THE INVENTION

[0008] (liquid cleaner for hard surfaces) The liquid detergent for hard surfaces of this embodiment (hereinafter also simply referred to as "liquid detergent") is a composition containing component (A1), component (A2), and component (D). In this specification, a numerical range expressed by "to" means a numerical range in which the numbers before and after "to" are the lower and upper limits.

[0009] <Component (A1)> Component (A1) is an alkyl polyglycoside. By including component (A1), the foaming properties of liquid detergents can be enhanced. The alkyl polyglycoside includes a compound represented by the following formula (1).

[0010] RO-[G] n ···(1) [In formula (1), R is an alkyl group having 8 to 18 carbon atoms, G is a glycoside residue, and n is the average degree of condensation and is a number from 1 to 5.]

[0011] The alkyl group represented by R is preferably linear. The number of carbon atoms in R in formula (1) is preferably 8 to 16, and more preferably 8 to 10, from the viewpoint of foamability. G is a glycoside residue. The reducing sugar, which is the raw material for the glycoside, may be either an aldose or a ketose. Examples of the reducing sugar include trioses, tetroses, pentoses, and hexoses, each having 3 to 6 carbon atoms. Specific examples of aldoses include apiose, arabinose, galactose, glucose, lyxose, mannose, galose, aldose, idose, talose, and xylose. A specific example of a ketose is fructose. Among these, component (A1) is preferably an aldopentose or aldohexose having 5 or 6 carbon atoms, and most preferably glucose, that is, G is most preferably a glucoside residue. In formula (1), n ​​represents the average degree of condensation of sugars, and is preferably a number from 1 to 2, more preferably a number from 1 to 1.5.

[0012] Component (A1) may be synthesized by a conventionally known production method or may be a commercially available product, such as GreenAPG 1214, GreenAPG 0810 (Nikko Chemicals Co., Ltd.), Mydol 10 (Kao Corporation), Triton CG-10 (Dow-Toray Industries, Inc.), Glucopon 650, Glucopon 215up (BASF), EcoSense 919 (Dow Chemical Company), or AG6210 (Nouryon). The component (A1) may be one type alone, or a combination of two or more types.

[0013] <(A2) component> The component (A2) is a polyoxyalkylene alkyl ether. By including the component (A2), the liquid detergent can improve its foaming properties and antibacterial properties against mold. The polyoxyalkylene alkyl ether includes a compound represented by the following formula (2).

[0014] R 1 -(A 1 O) m -OH (2) [In formula (2), R 1 is an aliphatic hydrocarbon group having 8 to 18 carbon atoms, and A 1 O is an oxyalkylene group having 2 to 3 carbon atoms, and m is A 1 The average number of repeats of O is between 31 and 70.

[0015] R in Equation (2) 1 is an aliphatic hydrocarbon group, and is preferably an alkyl group or an alkenyl group. 1 may be a straight chain or a branched chain. R 1 The number of carbon atoms in R is 8 to 18, preferably 10 to 16, and more preferably 10 to 14. 1 When the number of carbon atoms is within the above range, the foaming property and the fungicidal activity are further improved.

[0016] A 1O is an oxyalkylene group having 2 to 3 carbon atoms (oxyethylene group or oxypropylene group), and these may be present in combination. 1 O is preferably an oxyethylene group. When oxyethylene groups and oxypropylene groups are present together, they may be present in a random mixture or in a block mixture. m is a number from 31 to 70, and preferably from 51 to 70. When m is equal to or greater than the lower limit, foaming properties can be further improved. Furthermore, the larger the value of m, the more effective the disinfecting properties against mold. When m is equal to or less than the upper limit, foaming properties can be further improved. The component (A2) may be one type alone, or a combination of two or more types.

[0017] <(D) component)> Component (D) is one or more compounds selected from the group consisting of compounds represented by formula (d1) (component (d1)), compounds represented by formula (d2) (component (d2)), and compounds represented by formula (d3) (component (d3)). By including component (D), the liquid detergent can enhance its disinfecting properties against mold.

[0018] <(d1) component> The component (d1) is a compound represented by the following formula (d1).

[0019] R 13 -O-(AO) r -H (d1) [In formula (d1), R 13 represents hydrogen, a linear or branched alkyl group having 1 to 8 carbon atoms, or an aromatic hydrocarbon group having 6 to 8 carbon atoms; AO represents an oxyalkylene group having 2 to 3 carbon atoms; and r represents the average number of repetitions of (AO), which is 1 to 6.

[0020] R in equation (d1) 13 R is hydrogen, a linear or branched alkyl group having 1 to 8 carbon atoms, or an aromatic hydrocarbon group having 6 to 8 carbon atoms. 13 Examples of the aromatic hydrocarbon group include a phenyl group, a benzyl group, and a phenethyl group. R 13From the viewpoint of further enhancing the disinfecting property against mold, a linear or branched alkyl group having 4 to 8 carbon atoms and an aromatic hydrocarbon group having 6 to 8 carbon atoms are more preferred. AO is an oxyalkylene group having 2 to 3 carbon atoms (oxyethylene group or oxypropylene group), and these may be present in combination. 1 O is preferably an oxyethylene group. When oxyethylene groups and oxypropylene groups are present together, they may be present in a random mixture or in a block mixture. r is 1 to 6, preferably 1 or 2.

[0021] Examples of component (d1) include ethylene glycol, 1,3-propanediol, propylene glycol, diethylene glycol, dipropylene glycol, triethylene glycol, tripropylene glycol, ethylene glycol monobutyl ether, diethylene glycol monoethyl ether, diethylene glycol monobutyl ether, propylene glycol monomethyl ether, propylene glycol monoethyl ether, monoethylene glycol monophenyl ether, diethylene glycol monophenyl ether, and hexaethylene glycol monophenyl ether. The component (d1) may be one type alone or a combination of two or more types.

[0022] ≪(d2) component≫ The component (d2) is a compound represented by the following formula (d2).

[0023] [ka]

[0024] [In formula (d2), X is an oxygen atom or an alkylene group having 1 to 4 carbon atoms, each Y is independently a chlorine atom or a bromine atom, a, b, and c are independently 0 or a number from 1 to 3, h is 0 or 1, and i is 0 or 1.]

[0025] From the viewpoint of disinfecting properties against mold, X in formula (d2) is preferably an oxygen atom. In formula (d2), a is 0 or 1, with 1 being preferred.

[0026] Each Y in formula (d2) is independently a chlorine atom or a bromine atom, and preferably a chlorine atom. In the formula (d2), b is 0 to 2, and 1 is preferred. In formula (d2), c is 0 or 1, and 1 is preferred.

[0027] In formula (d2), h is 0 or 1, with 0 being preferred. In formula (d2), i is 0 or 1, with 0 being preferred.

[0028] Examples of the component (d2) include triclosan and diclosan. The component (d2) may be one type alone or a combination of two or more types.

[0029] <(d3) component> The component (d3) is a compound represented by the following formula (d3).

[0030] [ka]

[0031] [R in formula (d3) 16 is an alkylene group having 1 to 3 carbon atoms or an alkenylene group having 2 to 3 carbon atoms.]

[0032] R in formula (d3) 16 is an alkylene group or an alkenylene group, and is preferably an alkylene group. R 16 When is an alkylene group, R 16 has 1 to 3 carbon atoms, preferably 1 or 2. R 16 When is an alkenylene group, R 16 has 2 to 3 carbon atoms, preferably 3.

[0033] Examples of the component (d3) include benzyl alcohol, 2-phenylethanol, 3-phenyl-1-propanol, cinnamyl alcohol, and benzyl glycol. The component (d3) may be one type alone or a combination of two or more types.

[0034] From the viewpoint of disinfecting properties against mold (particularly Cladosporium), component (D) is preferably diethylene glycol monobutyl ether, monoethylene glycol monophenyl ether, diethylene glycol monophenyl ether, hexaethylene glycol monophenyl ether, dichlosan, or benzyl alcohol, and more preferably monoethylene glycol monophenyl ether, diethylene glycol monophenyl ether, dichlosan, or benzyl alcohol. From the viewpoint of foaming properties, the (D) component is preferably monoethylene glycol monophenyl ether, diethylene glycol monophenyl ether, hexaethylene glycol monophenyl ether, dichlosan, or benzyl alcohol, and more preferably monoethylene glycol monophenyl ether, diethylene glycol monophenyl ether, or hexaethylene glycol monophenyl ether. From the viewpoint of the balance between foaming properties and disinfecting properties against mold, monoethylene glycol monophenyl ether is particularly preferred. The component (D) may be one type alone or a combination of two or more types.

[0035] <Optional ingredients> The liquid detergent may contain other components (optional components) in addition to the components (A1), (A2), and (D). Examples of optional components include water, surfactants other than components (A1) and (A2) (optional surfactants), hydrotropes (excluding component (D)), pH adjusters, preservatives, antioxidants, thickeners, UV absorbers, fragrances, and colorants. The total amount of the components (A1), (A2), (D) and any optional components does not exceed 100% by mass.

[0036] ≪Water≫ Examples of water include ion-exchanged water, pure water, etc. When the liquid detergent contains water, it can be more easily handled during production and more easily dissolved in water during use. The content of water is preferably 80 to 98 mass %, more preferably 85 to 96 mass %, based on the total mass of the liquid detergent.

[0037] <Optional surfactant> Examples of optional surfactants include nonionic surfactants other than components (A1) and (A2), cationic surfactants, amphoteric surfactants, anionic surfactants, and amine oxide surfactants. The optional surfactant can be appropriately selected from known surfactants depending on the purpose, and may be used alone or in combination of two or more.

[0038] <pH adjuster> The pH adjuster is not particularly limited, but sulfuric acid, hydrochloric acid, phosphoric acid, sodium hydroxide, potassium hydroxide, sodium carbonate, ammonia and its derivatives, monoethanolamine, diethanolamine, triethanolamine, etc. are preferred, sulfuric acid, sodium hydroxide, potassium hydroxide, monoethanolamine, and triethanolamine are more preferred, and sulfuric acid, sodium hydroxide, and potassium hydroxide are even more preferred. The pH adjuster may be used alone or in combination of two or more.

[0039] <Hydrotrope> Examples of hydrotropic agents include p-toluenesulfonic acid, cumenesulfonic acid, and monohydric alcohols having 1 to 5 carbon atoms.

[0040] <Content / ratio> The components (A1) and (A2) are nonionic surfactants. The content of component (A1) is preferably 0.5 to 5 mass%, more preferably 0.7 to 5 mass%, and even more preferably 0.8 to 2 mass%, relative to the total mass of the liquid detergent. When the content of component (A1) is equal to or greater than the above-mentioned lower limit, foaming properties can be further improved. When the content of component (A1) is equal to or less than the above-mentioned upper limit, disinfecting properties against mold can be further improved.

[0041] The content of component (A2) relative to the total mass of the liquid detergent is preferably 0.1 to 2 mass%, more preferably 0.4 to 1.5 mass%, and even more preferably 0.8 to 1.2 mass%. When the content of component (A2) is equal to or greater than the above lower limit, the disinfecting effect against mold can be further enhanced. When the content of component (A2) is equal to or less than the above upper limit, the foaming property can be further enhanced.

[0042] The combined amount of components (A1) and (A2) (A1+A2) is preferably 0.6 to 5% by mass relative to the total mass of the liquid detergent. When (A1+A2) is equal to or greater than the lower limit, foaming properties can be improved. When (A1+A2) is equal to or less than the upper limit, discharge properties are improved, which is advantageous in terms of cost. The total amount of the (A1) and (A2) components relative to the total mass of surfactants contained in the liquid detergent is not particularly limited, but is preferably 90 mass% or more, more preferably 94 mass% or more, even more preferably 96 mass% or more, and may be 100 mass%.

[0043] The mass ratio of the content of the component (A1) to the content of the component (A2) (A1 / A2 ratio) is preferably 0.6 to 9, and more preferably 0.8 to 2. When the (A1 / A2 ratio) is equal to or greater than the lower limit, the foaming property can be increased. When the (A1 / A2 ratio) is equal to or less than the upper limit, the disinfecting property against mold can be increased.

[0044] The content of component (D) relative to the total mass of the liquid detergent is preferably 0.1 to 5 mass%, more preferably 0.5 to 3 mass%, and even more preferably 1 to 2 mass%. When the content of component (D) is equal to or greater than the above-mentioned lower limit, the disinfecting effect against mold can be further improved. When the content of component (D) is equal to or less than the above-mentioned upper limit, the foaming property can be further improved.

[0045] The (A1+A2) / D ratio, which represents the mass ratio of the total content (A1+A2) of the components (A1) and (A2) to the content of the component (D), is preferably 0.3 to 20, more preferably 0.7 to 4. When the (A1+A2) / D ratio) is at least the above lower limit, low-temperature stability can be improved. When the (A1+A2) / D ratio) is at most the above upper limit, disinfecting properties against mold can be improved.

[0046] As will be shown in the examples below, combining component (A1), component (A2), and component (D) achieves both foaming properties and disinfecting properties against mold. The reason for this effect is not clear, but it is thought that combining component (A2), a nonionic surfactant with a long EO chain length, with component (D) enhances the penetration of the surfactant, allowing for efficient disinfecting properties against mold, and that adding component (A1) to supplement foaming properties allows for the realization of good foaming properties and disinfecting properties.

[0047] <Physical properties> The pH of the liquid detergent at 25°C is preferably 4-12, more preferably 4-10, and even more preferably 6-10. In this specification, the pH of the liquid detergent is a value measured by a method in accordance with JIS Z 8802:2011 "pH measurement method."

[0048] The viscosity of the liquid detergent is not particularly limited, but when using a spray container or squeeze container, it is preferably 1 to 50 mPa·s, more preferably 1 to 10 mPa·s, in terms of ease of foaming. In this specification, the viscosity of a liquid detergent is measured at a liquid temperature of 25°C using a Brookfield viscometer with rotor number 1 at a rotor rotation speed of 60 rpm, 60 seconds after the rotor starts rotating. The viscosity of the liquid detergent can be adjusted by the amount of each component, the amount of thickener, etc.

[0049] (liquid cleaning product for hard surfaces) The liquid detergent product for hard surfaces (hereinafter sometimes simply referred to as "liquid detergent product") has a dispensing container and the liquid detergent for hard surfaces of the present invention contained in the dispensing container.

[0050] Examples of the dispensing container for containing the liquid detergent include a spray container, a squeeze container, etc. Among them, a spray container is preferred because of its excellent applicability to the object to be cleaned. Examples of the spray container include an aerosol spray container, a trigger spray container (direct pressure type or pressure accumulation type), a dispenser spray container, etc. These containers may be manual or electric. Examples of the aerosol spray container include those described in JP-A-9-3441 and JP-A-9-58765. When filling an aerosol spray container, propellants that can be used include LPG (liquefied propane gas), DME (dimethyl ether), carbon dioxide gas, nitrogen gas, nitrous oxide gas, etc. These propellants may be used alone or in combination of two or more. Examples of trigger spray containers include those described in JP-A-9-268473 and JP-A-10-76196. Examples of dispenser spray containers include those described in JP-A-9-256272. An example of a pressure-accumulating trigger spray container is that described in JP-A-2013-154276.

[0051] (Manufacturing method) The liquid detergent can be produced by a conventional method, such as adding components (A1), (A2), and (D) and any optional components to water or a solvent prepared by adding a hydrotrope to water as needed, and then mixing the mixture. The liquid detergent product is produced by producing a liquid detergent by the above-mentioned method and storing it in a dispensing container.

[0052] (How to use) One way to use a liquid detergent is to store it in a dispenser container, apply an appropriate amount of the liquid detergent from the dispenser to the object to be washed (e.g., a toilet bowl), and then rinse with running water after a certain period of time, thereby performing a "rinsing" process. Another method of use is to apply an appropriate amount of liquid detergent to the object to be washed (for example, a toilet bowl) and scrub it with a cleaning brush. Alternatively, a liquid detergent can be applied to the object to be washed (for example, a toilet seat or toilet floor) and then wiped off with a cloth or paper, known as "wiping and washing."

[0053] The items to be washed may be any hard surface such as an article, for example, hard surfaces in the bathroom, bathroom supplies, hard surfaces in the toilet, toilet supplies, hard surfaces in the kitchen, and kitchen supplies (dishes, cooking utensils, sinks, areas around the range, etc.). The hard surface means a surface made of a hard material such as plastic, ceramic, glass, or stainless steel. The liquid detergent of this embodiment has good foaming properties and antibacterial properties against mold, making it suitable for cleaning hard surfaces in wet areas such as toilets and bathrooms, and is particularly suitable as a liquid detergent for toilets. [Example]

[0054] The present invention will be described in detail below with reference to examples, but the present invention is not limited to the following description.

[0055] (Raw materials used) <Component (A1): Alkyl polyglycoside> A1-1: C8-10 APG, BASF product name "Glucopon215up", a compound in which in formula (1), R is a linear alkyl group having 8 to 10 carbon atoms, G is a glucoside residue, and n is 1.5. A1-2: C8-16APG, BASF product name "Glucopon 650", a compound in which, in formula (1), R is a linear alkyl group having 8 to 16 carbon atoms, G is a glucoside residue, and n is in the range of 1 to 1.5. A1-3: C8+C10 APG, Nouryon product name "AG6210", a compound in which in formula (1), R is a linear alkyl group having 8 or 10 carbon atoms, G is a glucoside residue, and n is in the range of 1 to 1.5.

[0056] <Component (A2): Polyoxyalkylene alkyl ether> A2-1: Polyoxyethylene isotridecyl ether (EO60), shown as "C13EO60" in the table. Lion Chemical Co., Ltd. product name "TA600-75". In formula (2), R 1 is a branched alkyl group having 13 carbon atoms, and A 1 A compound in which O is an oxyethylene group and m is 60. A2-2: Polyoxyethylene lauryl ether (EO50), shown as "C12EO50" in the table. Nippon Emulsion Co., Ltd. product name "EMALEX 750". In formula (2), R 1 is a linear alkyl group having 12 carbon atoms, and A 1 A compound in which O is an oxyethylene group and m is 50. A2-3: Polyoxyethylene tridecyl ether (EO40), shown as "C13EO40" in the table. Lion Specialty Chemicals Co., Ltd. product name: "LEOCOL TDA400-75". In formula (2), R 1 is a branched alkyl group having 13 carbon atoms, and A 1 A compound in which O is an oxyethylene group and m is 40.

[0057] <Component (A2'): Comparison product of component (A2)> A2'-1: Polyoxyethylene lauryl ether (EO30), (referred to as "C12EO30" in the table; product name "EMALEX 630" by Nippon Emulsion Co., Ltd.), in formula (2), R 1 is a linear alkyl group having 12 carbon atoms, and A 1 A compound in which O is an oxyethylene group and m is 30.

[0058] <(D) component> D-1: Ethylene glycol monophenyl ether (phenoxyethanol), equivalent to component (d1) of "Phenyl glycol (EO1)" manufactured by Nippon Nyukazai Co., Ltd. D-2: Diethylene glycol monophenyl ether, "Phenyl glycol (EO2)" manufactured by Nippon Nyukazai Co., Ltd., equivalent to component (d1). D-3: Hexaethylene glycol monophenyl ether, equivalent to component (d1) of "Phenyl glycol (EO5.5)" manufactured by Nippon Nyukazai Co., Ltd. D-4: Diethylene glycol monobutyl ether, equivalent to "Butyl diglycol" manufactured by Nippon Nyukazai Co., Ltd., component (d1). D-5: Dichrosan, equivalent to component (d2) in BASF's "Tinosan HP 100." D-6: Benzyl alcohol, Junsei Chemical Co., Ltd. "Benzyl alcohol", equivalent to component (d3).

[0059] <Component (D'): Comparison product of component (D)> D'-1: Ethanol: Product name "Synthetic 95", manufactured by Japan Alcohol Sales Co., Ltd.

[0060] <Optional ingredients> pH adjuster: citric acid "purified citric acid (anhydrous)", sodium hydroxide (reagent). Sodium cumene sulfonate (SCS): Manufactured by Teika Corporation. Water: Ion-exchanged water.

[0061] (Evaluation method) <Evaluation of foaming properties> Each liquid detergent was adjusted to 5°C and placed in a dispenser (manufactured by Yoshino Kogyosho Co., Ltd., product name "TA-FA," foam trigger spray container, pressure-accumulating type, one stroke (approximately 0.8 g / stroke)). Five strokes of the liquid detergent were dispensed from this dispenser into a 200 mL tall beaker. The foam height was measured with a ruler and converted into foam height per 1 g of liquid detergent, and the foaming ability was evaluated based on the following evaluation criteria.

[0062] <Evaluation Criteria> 5 points: Foam height is 1.0 cm / g or more. 4 points: Foam height is 0.8cm / g or more but less than 1.0cm / g. 3 points: Foam height is 0.6cm / g or more but less than 0.8cm / g. 2 points: Foam height is 0.4cm / g or more but less than 0.6cm / g. 1 point: Less than 0.4cm / g.

[0063] <Evaluation of disinfection against mold (Cladosporium)> The disinfecting properties of the liquid detergents in each example were evaluated as follows. (1) Preparation of test bacterial solution Cladosporium cladosporioides HMC1064, which had been cultured on a potato dextrose agar slant (manufactured by Difco) at 25°C for 10 days, was diluted with autoclaved polyoxyethylene sorbitan monooleate (trade name "Tween 80", manufactured by Tokyo Chemical Industry Co., Ltd.) for approximately 10 days. 6 Spore solutions of CFU / mL were prepared. (2) Preparation of test glass plates 0.1 mL of the spore solution prepared in (1) was inoculated onto a glass slide and allowed to dry and fix at room temperature for 2 hours. (3) Sterilization measurement 0.2 mL of the evaluation sample (liquid detergent obtained in each example) was added to the slide glass (2), left to stand for 10 minutes, and then 10 mL of GPLP liquid medium (manufactured by Nippon Pharmaceutical Co., Ltd.) was added to wash out the bacteria. The liquid was then smeared onto potato dextrose agar medium (manufactured by Kanto Chemical Co., Ltd.) and cultured at 25°C for 5 days, after which the number of colonies was counted to calculate the viable bacterial count. Also, 10 mL of GPLP liquid medium (manufactured by Nippon Pharmaceutical Co., Ltd.) was added to wash out the bacteria. The liquid was then smeared onto potato dextrose agar medium (manufactured by Kanto Chemical Co., Ltd.) and cultured at 25°C for 5 days, after which the number of colonies was counted to calculate the viable bacterial count when untreated. The Log number of bacteria (ΔLog) obtained by subtracting the Log number of bacteria of the evaluation sample from the Log number of bacteria of the untreated sample was used as the disinfecting activity value, and the disinfecting properties were evaluated based on the following evaluation criteria.

[0064] <Evaluation Criteria> 5 points: Disinfection activity value is 2.0 or higher. 4 points: Disinfection activity value is 1.5 or more but less than 2.0. 3 points: Disinfection activity value is 0.8 or more but less than 1.5. 2 points: Disinfection activity value is 0.4 or more but less than 0.8. 1 point: Disinfection activity value is less than 0.4.

[0065] <Evaluation of low temperature stability> 40 mL of each liquid detergent composition was placed in a standard PS6 bottle, capped, and stored in a thermostatic chamber at -5°C for 30 days. After returning the bottle to room temperature, the appearance of the liquid was visually evaluated and scored by a panel of experts (N=2) according to the following criteria. An average score of 3 or more was considered acceptable.

[0066] <Evaluation Criteria> 5 points: Uniformly transparent. 4 points: Slightly cloudy. 3 points: The liquid has separated into two layers. Shaking the bottle will make it uniform and transparent. 2 points: The liquid has separated into two layers. It does not become clear even when the bottle is shaken. 1 point: A precipitate has formed in the liquid or the liquid has solidified.

[0067] <Examples 1 to 32 and Comparative Examples 1 to 6> Liquid detergents were produced according to the formulations (units: mass %) shown in the table. A 300 ml beaker was charged with 150 g of ion-exchanged water, and the resulting mixture was stirred with a stirrer to give a total of 200 g of composition. Next, components (A1) and (A2) were added and stirred with a stirrer. Next, component (D) was added and stirred. After stirring, a pH adjuster was added to adjust the pH to approximately 7. The remaining water was added and stirred to obtain a liquid detergent. The amounts in the table are pure content values, expressed as "mass %" relative to the total mass of the liquid detergent. Components without a listed amount in the table are not included. The "appropriate amount" of pH adjuster is the amount required to adjust the pH of each liquid detergent to the specified value. The "balance" water content refers to the remainder added so that the total amount (mass %) of all ingredients contained in the liquid detergent is 100 mass %.

[0068] [Table 1]

[0069] [Table 2]

[0070] [Table 3]

[0071] [Table 4]

[0072] As shown in Tables 1 to 4, Examples 1 to 32 were excellent in foaming properties and disinfecting properties against mold. Comparative Examples 1 and 5, which did not contain the component (A1), and Comparative Example 4, which contained the component (A'2) instead of the component (A2), received evaluation scores of 1 to 2 points for foamability. Comparative Example 2, which did not contain the component (A2), Comparative Example 3, which did not contain the component (D), and Comparative Example 6, which contained the component (D') instead of the component (D), were evaluated for disinfection ability as 1 to 2 points.

Claims

1. Component (A1): an alkyl polyglycoside represented by the following formula (1), Component (A2): a polyoxyalkylene alkyl ether represented by the following formula (2), Component (D): one or more compounds selected from the group consisting of a compound represented by the following formula (d1), a compound represented by the following formula (d2), and a compound represented by the following formula (d3), A liquid cleaning agent for hard surfaces, comprising: R-O-[G] ｎ ・・・(1) [In formula (1), R is an alkyl group having 8 to 18 carbon atoms, G is a glycoside residue, and n is the average degree of condensation and is a number from 1 to 5.] R １ -(A １ O) ｍ -OH ・・・(2) [In formula (2), R １ is an aliphatic hydrocarbon group having 8 to 18 carbon atoms, and A １ O is an oxyalkylene group having 2 or 3 carbon atoms, and m is A １ The average number of repeating O's is 31 to 70. R １３ -O-(AO) ｒ -H ・・・(d1) [In formula (d1), R １３ represents hydrogen, a linear or branched alkyl group having 1 to 8 carbon atoms, or an aromatic hydrocarbon group having 6 to 8 carbon atoms; AO represents an oxyalkylene group having 2 to 3 carbon atoms; and r represents the average number of repetitions of (AO), which is 1 to 6. 【Chemical 1】 [In formula (d2), X is an oxygen atom or an alkylene group having 1 to 4 carbon atoms, each Y is independently a chlorine atom or a bromine atom, a, b, and c are independently 0 or a number from 1 to 3, h is 0 or 1, and i is 0 or 1.] 【Chemistry 2】 [R in formula (d3)] １６ is an alkylene group having 1 to 3 carbon atoms or an alkenylene group having 2 to 3 carbon atoms.]

2. 2. The liquid cleaning agent for hard surfaces according to claim 1, wherein the (A1 / A2 ratio), which represents the mass ratio of the content of the component (A1) to the content of the component (A2), is 0.6 to 9.

3. 2. The liquid cleaning agent for hard surfaces according to claim 1, wherein the (A1+A2) / D ratio, which represents the mass ratio of the total content of the (A1) component and the (A2) component to the content of the (D) component, is 0.3 to 20.

4. The liquid detergent for hard surfaces according to claim 1, wherein the total content of the component (A1) and the component (A2) is 0.6 to 5 mass% relative to the total mass of the liquid detergent for hard surfaces.

5. A liquid cleaning agent product for hard surfaces, comprising the liquid cleaning agent for hard surfaces according to any one of claims 1 to 4, and a dispensing container containing the liquid cleaning agent for hard surfaces.

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