Liquid cleaning composition for hard surfaces and method for cleaning hard surfaces

Abstract

To provide a liquid detergent composition for hard surfaces having improved wipability and detergency.SOLUTION: A liquid detergent composition for hard surfaces contains component (A): at least one selected from ampholytic surfactants and semipolar surfactants, component (B): polyoxyalkylene alkyl ether represented by the following formula (b), and component (C): a chelator and has a viscosity of 10 mPa s or less. R-(OC2H4)n-OH (b) (where R represents a C8-18 aliphatic hydrocarbon group, and n represents an average number of repetitions of (OC2H4), which is 31-70).SELECTED DRAWING: None

Description

[Technical Field]

[0001] The present invention relates to a liquid cleaning composition for hard surfaces and a method for cleaning hard surfaces. [Background technology]

[0002] As a method for cleaning surfaces of objects (hard surfaces) that are harder than those of clothing, such as toilet seats, floors and walls, furniture, bathtubs, etc., a method of spraying a liquid detergent composition in the form of a foam or mist onto the object to be cleaned and wiping the sprayed liquid detergent composition can be exemplified. In addition to detergency, the liquid detergent composition used in such a cleaning method is required to be easy to wipe off (good wiping ability). For example, Patent Document 1 proposes a liquid cleaning composition for toilets that contains a surfactant, a specific glycol solvent, an aminocarboxylic acid chelating agent, and a polycarboxylic acid chelating agent. The invention of Patent Document 1 aims to improve cleaning power and wiping ability. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] Japanese Patent Application Publication No. 2020-100774 Summary of the Invention [Problem to be solved by the invention]

[0004] In order to improve the cleaning power for hard surfaces, a cleaning method (soak cleaning) may be adopted in which a liquid detergent composition is foamed and sprayed onto the object to be cleaned, left in this state, and then wiped off. In soak cleaning, maintaining the sprayed liquid detergent composition in a foam state is effective for improving the cleaning power. Increasing the amount of surfactant in the liquid detergent composition can prolong the time for which the foam is maintained (excellent foam durability). However, simply increasing the amount of surfactant in a liquid detergent composition can result in a problem of impaired wiping properties. Therefore, an object of the present invention is to provide a liquid detergent composition for hard surfaces that has good wiping properties and excellent detergency even when used for immersion cleaning. [Means for solving the problem]

[0005] The present invention has the following aspects. <1> Component (A): at least one selected from amphoteric surfactants and semi-polar surfactants; Component (B): a polyoxyalkylene alkyl ether represented by the following formula (b), (C) component: a chelating agent; Contains A liquid cleaning composition for hard surfaces having a viscosity of 10 mPa·s or less. R-(OC2H4) n -OH (b) (In formula (b), R is an aliphatic hydrocarbon group having 8 to 18 carbon atoms, and n is a number representing the average number of repetitions of (OC2H4), and n is a number ranging from 31 to 70.) <2> The mass ratio of the component (A) to the component (B) is 0.5 to 4. <1> 1. A liquid cleaning composition for hard surfaces according to claim 1. <3> The component (C) includes the following component (c1) and component (c2): 3. The liquid detergent composition for hard surfaces according to claim 1, wherein a mass ratio of said component (c1) / said component (c2) is 1.5-10. (c1) Ingredient: Aminocarboxylic acid chelating agent. (c2) Ingredient: Polycarboxylic acid-based chelating agent. <4> The total amount of the (A), (B), and (C) components is 0.8 to 13 mass% based on the total mass of the liquid detergent composition for hard surfaces. <1> ~ <3> 1. A liquid cleaning composition for hard surfaces according to any one of the preceding claims.

[0006] <5> <1> ~ <4> A method for cleaning a hard surface, comprising spraying the liquid cleaning agent for hard surfaces described in any one of the above onto an object to be treated, and wiping off part or all of the sprayed liquid cleaning agent for hard surfaces. [Effects of the Invention]

[0007] The liquid detergent composition for hard surfaces of the present invention has good wiping properties and excellent detergency even when used for immersion cleaning. DETAILED DESCRIPTION OF THE INVENTION

[0008] (Liquid cleaning composition for hard surfaces) The liquid detergent composition for hard surfaces of the present invention (hereinafter sometimes simply referred to as "liquid detergent composition") contains components (A) to (C).

[0009] The viscosity of the liquid detergent composition is 10 mPa·s or less, preferably 6 mPa·s or less. If the viscosity is equal to or less than the upper limit, wiping properties are improved and foaming is achieved well when sprayed (high foaming properties). The lower limit of the viscosity is substantially 1 mPa·s or more, preferably 2 mPa·s or more. The viscosity is measured at 25°C using a Brookfield type viscometer at 60 rpm after 60 seconds.

[0010] The pH of the liquid detergent composition is, for example, preferably 5 to 9, and more preferably 6 to 8. The pH was measured at 25°C using a pH meter (portable pH / ORP / ION meter D-73, manufactured by Horiba, Ltd.).

[0011] <Component (A)> Component (A) is at least one selected from an amphoteric surfactant (component (a1)) and a semi-polar surfactant (component (a2)). By including component (A), the liquid detergent composition of the present invention has improved foaming properties when sprayed and improved wiping properties.

[0012] Examples of the component (a1) include carbobetaine-based amphoteric surfactants, amidobetaine-based amphoteric surfactants, sulfobetaine-based (hydroxysulfobetaine-based, amidosulfobetaine-based) amphoteric surfactants, imidazolinium betaine-based amphoteric surfactants, phosphobetaine-based amphoteric surfactants, and aminopropionic acid-based amphoteric surfactants.

[0013] Examples of carbobetaine-based amphoteric surfactants include lauric acid dimethylaminoacetic acid betaine, myristyl dimethylaminoacetic acid betaine, and stearyl dimethylaminoacetic acid betaine. Examples of amidobetaine amphoteric surfactants include coconut oil fatty acid amidopropyl betaine (cocamidopropyl betaine), lauric acid amidopropyl betaine, and isostearamidopropyl betaine.

[0014] Among these, as the component (a1), carbobetaine-based amphoteric surfactants and amidobetaine-based amphoteric surfactants are preferred, and lauric acid amidopropyl betaine and lauryl dimethylaminoacetic acid betaine are more preferred.

[0015] Component (a2) is a surfactant with a semi-polar bond (a bond with intermediate properties between a non-polar bond and a polar bond). Component (a2) exhibits cationic or non-polar properties depending on the pH of the solution in which it is dissolved or the dispersion in which it is dispersed. Examples of the component (a2) include alkylamine oxide type semi-polar surfactants and alkylamidoamine oxide type semi-polar surfactants. The alkylamine oxide type semi-polar surfactant is preferably an alkyldimethylamine oxide having an alkyl group with 8 to 18 carbon atoms, and more preferably an alkyldimethylamine oxide having an alkyl group with 12 to 14 carbon atoms. Examples of the alkylamine oxide type semi-polar surfactant include lauryl dimethylamine oxide, myristyl dimethylamine oxide, and coconut oil dimethylamine oxide.

[0016] The above-mentioned component (A) may be one type alone or a combination of two or more types. The component (A) preferably contains the component (a1), and the component (a1) is preferred.

[0017] The content of component (A) is preferably 0.15 to 5 mass%, more preferably 0.25 to 4 mass%, and even more preferably 0.3 to 4 mass%, relative to the total mass of the liquid detergent composition. When the content of component (A) is equal to or greater than the above-mentioned lower limit, foaming properties are further increased, and cleaning power in soak-cleaning is further enhanced. When the content of component (A) is equal to or less than the above-mentioned upper limit, wiping properties in soak-cleaning are further enhanced.

[0018] <(B) component> Component (B) is a polyoxyalkylene alkyl ether represented by formula (b). By including component (B), the liquid detergent composition of the present invention has improved foaming properties when sprayed and improved foam persistence after spraying.

[0019] R-(OC2H4) n -OH (b)

[0020] In formula (b), R is an aliphatic hydrocarbon group having 8 to 18 carbon atoms. R may be a straight chain or a branched chain. R may be a saturated or unsaturated hydrocarbon. R preferably has 12 to 18 carbon atoms.

[0021] In formula (b), n is a number from 31 to 70 and represents the average number of repeating oxyethylene groups (OC2H4). n is preferably from 31 to 60. When n is equal to or greater than the lower limit, foaming ability is enhanced, the amount of foam increases, and foam persistence is enhanced. When n is equal to or less than the upper limit, foam persistence is enhanced, the amount of foam increases, and detergency in soak washing is enhanced.

[0022] The content of component (B) is preferably 0.1 to 5 mass%, more preferably 0.1 to 4 mass%, and even more preferably 0.25 to 2 mass%, relative to the total mass of the liquid detergent composition. When the content of component (B) is equal to or greater than the above-mentioned lower limit, foam persistence is further improved, and cleaning power in soak-wash is further enhanced. When the content of component (B) is equal to or less than the above-mentioned upper limit, the amount of foam is further increased, foam persistence is further improved, and cleaning power in soak-wash is further enhanced.

[0023] The total amount of components (A) and (B) (A+B amount) is preferably 0.3 to 10% by mass, more preferably 0.8 to 8% by mass, based on the total mass of the liquid detergent composition. When the A+B amount is equal to or greater than the lower limit, foaming properties are enhanced and foam persistence is improved. When the A+B amount is equal to or less than the upper limit, wiping properties are improved.

[0024] The mass ratio (A / B ratio), which is the ratio of the mass of component (A) to the mass of component (B), expressed as component (A) / component (B), is preferably 0.5 to 4, more preferably 1 to 4, and even more preferably 2 to 4. When the A / B ratio is within the above range, the amount of foam increases and foam persistence is improved.

[0025] <(C) component> Component (C) is a chelating agent. The liquid detergent composition of the present invention has enhanced detergency due to the inclusion of component (C). Component (C) is particularly effective in improving detergency in soak cleaning.

[0026] Examples of the component (C) include aminocarboxylic acid chelating agents (component (c1)), polycarboxylic acid chelating agents (component (c2)), phosphonic acid chelating agents, phosphonocarboxylic acid chelating agents, and phosphoric acids.

[0027] Examples of the component (c1) include DEG (dihydroxyethylglycine: N-(2-hydroxylethyl)glycine), HEIDA (N-(2-hydroxyethyl)iminodiacetic acid: N-(2-hydroxyethyl)iminodiacetic acid), HEDTA (hydroxyethylethylenediaminetetraacetic acid: N-(hydroxyethyl)ethylenediamine tetraacetic acid), NTA (nitrilotriacetic acid: Nitrilo Triacetic Acid), DTPA (diethylenetriaminepentaacetic acid: Diethylene Triamine Pentaacetic Acid), HEDTA (hydroxyethylethylenediaminetriacetic acid: Hydroxyethyl Ethylene Diamine Triacetic Acid), EDTA (ethylenediaminetetraacetic acid: Ethylene Diamine Tetraacetic Acid), MGDA (methylglycinediacetic acid: Methylglycine Diacetic Acid), GLDA (dicarboxymethyle glutamic acid), ASDA (aspartate diacetic acid: Aspartate Diacetic Acid) Examples of the iminodisuccinic acid include EDDS (Ethylenediamine Disuccinic Acid), HIDS (Hydroxyiminodisuccinic Acid), IDS (Iminodisuccinic Acid), and salts (for example, alkali metal salts) and hydrates thereof. Among these, MGDA, GLDA, EDTA, and alkali metal salts thereof are preferred as component (c1), as these components (c1) further enhance the detergency in immersion washing. The above-mentioned component (c1) may be one type alone or a combination of two or more types.

[0028] Examples of the component (c2) include acetic acid, adipic acid, monochloroacetic acid, oxalic acid, succinic acid, oxydisuccinic acid, carboxymethylsuccinic acid, carboxymethyloxysuccinic acid, glycolic acid, diglycolic acid, lactic acid, tartaric acid, carboxymethyltartaric acid, citric acid, malic acid, and gluconic acid, as well as alkali metal salts thereof. Among these, citric acid, malic acid, and lactic acid are preferred as component (c2), as these components (c2) further enhance the detergency during immersion washing. The above-mentioned component (c2) may be one type alone or a combination of two or more types.

[0029] The component (C) may contain both the component (c1) and the component (c2), or may contain only one of them. From the viewpoint of further improving the detergency in the soaking and washing step, the component (C) preferably contains both the component (c1) and the component (c2). When component (C) contains both components (c1) and (c2), the mass ratio (c1 / c2 ratio), which is the ratio of the mass of component (c1) to the mass of component (c2), expressed as component (c1) / (c2), is preferably 1.5 to 10, more preferably 1.9 to 6. When the c1 / c2 ratio is within the above range, the detergency in soak-washing is further improved.

[0030] The content of component (C) is preferably 0.1 to 4 mass%, more preferably 0.5 to 3 mass%, and even more preferably 0.5 to 2.5 mass%, based on the total mass of the liquid detergent composition. When the content of component (C) is equal to or greater than the above-mentioned lower limit, the detergency in soaking and cleaning is further enhanced. When the content of component (C) is equal to or less than the above-mentioned upper limit, the wiping ability in soaking and cleaning is further enhanced.

[0031] The total amount of components (A), (B), and (C) (A+B+C amount) is preferably 0.8 to 13 mass%, more preferably 1 to 11 mass%, and even more preferably 4 to 8 mass%, based on the total mass of the liquid detergent composition. When the A+B+C amount is equal to or greater than the above-mentioned lower limit, the content of the active ingredient in the liquid detergent composition increases, resulting in enhanced detergency and foaming properties. When the A+B+C amount is equal to or less than the above-mentioned upper limit, the content of the active ingredient in the liquid detergent composition is appropriately suppressed, resulting in enhanced wiping properties. In addition, when the A+B+C amount is equal to or less than the above-mentioned upper limit, the viscosity is appropriately suppressed, resulting in enhanced foaming properties.

[0032] <Optional ingredients> The liquid detergent composition of the present invention may contain any optional components other than the components (A) to (C). Examples of optional components include surfactants other than component (A) (optional surfactants), organic solvents other than component (B) (optional solvents), water-soluble polymers, water, pH adjusters, preservatives, colorants, and fragrances.

[0033] Examples of the optional surfactant include anionic surfactants, nonionic surfactants, and cationic surfactants. The content of the optional surfactant is preferably 0.01 to 5% by mass relative to the total mass of the liquid detergent composition.

[0034] The optional solvent may include monohydric alcohols, glycol ethers, and the like. Examples of the monohydric alcohol include ethanol and isopropanol. Examples of glycol ethers include ethylene glycol ethers such as ethylene glycol monomethyl ether, dialkyl glycol ether solvents such as propylene glycol ethers such as propylene glycol monoethyl ether, and monoethylene glycol monophenyl ether. The content of the optional solvent is preferably 0.5 to 30% by mass relative to the total mass of the liquid detergent composition.

[0035] Examples of the water-soluble polymer include polyvinyl alcohol, cationic polyvinyl alcohol, and anionic polyvinyl alcohol.

[0036] Examples of the preservative include isothiazolinone-based preservatives such as benzisothiazolinone, methylisothiazolinone, butylbenzisothiazolinone, chloromethylisothiazolinone, octylisothiazolinone, and dichlorooctylisothiazolinone. Of these, 1,2-benzisothiazolin-3-one and 2-methyl-4-isothiazolin-3-one are preferred as preservatives. These preservatives may be used alone or in combination of two or more. The content of the preservative is preferably 2 to 1000 ppm by mass relative to the total mass of the liquid detergent composition.

[0037] The pH adjuster may be either an alkaline agent or an acid agent. Examples of alkaline agents include those selected from sodium hydroxide, potassium hydroxide, sodium carbonate, ammonia and its derivatives, monoethanolamine, diethanolamine, triethanolamine, etc. Examples of acid agents include sulfuric acid, hydrochloric acid, etc. The pH adjuster may be used alone or in combination of two or more.

[0038] Water functions as a dispersion medium for the liquid detergent composition. The water content is preferably 50 to 98% by mass, more preferably 53 to 95% by mass, based on the total mass of the liquid detergent composition. If the water content is equal to or greater than the lower limit, the viscosity of the liquid detergent composition can be appropriately reduced, thereby further enhancing foamability. In addition, if the water content is equal to or greater than the lower limit, the content of components other than water can be appropriately reduced, thereby further enhancing wiping performance. If the water content is equal to or less than the upper limit, the amount of A+B+C can be appropriately increased, thereby further increasing the amount of foam, thereby further enhancing foam persistence, foamability, and detergency.

[0039] (Manufacturing method) The liquid detergent of the present invention is produced by a conventionally known production method. As a production method, for example, components (A) to (C) and optional components as necessary are added to a portion of water, the pH is adjusted, and then the remainder of the water is added to make the total amount 100% by mass.

[0040] The liquid detergent composition of the present invention may be filled into a container to form a liquid detergent product. Examples of the container include a type that discharges the detergent composition onto the object to be cleaned using a trigger-type sprayer, a type that sprays the detergent composition from a foam or mist aerosol, and a type that discharges the detergent composition from a bottle opening. Among these, a trigger-type sprayer that discharges the detergent composition in foam form is particularly preferred as a container for the liquid detergent composition of the present invention. The trigger-type sprayer may be a pressure-accumulation type or a direct pressure type. Examples of pressure-accumulation trigger sprayers include those described in paragraphs

[0009] to

[0014] of JP 2017-214464 A. Examples of direct pressure trigger sprayers include those described in Figure 1 of JP 2012-131951 A and those described in JP 2018-199771 A.

[0041] (How to use) A method for using the liquid detergent composition (i.e., a method for cleaning a hard surface) includes, for example, spraying the liquid detergent composition onto the object to be treated and wiping off some or all of the sprayed liquid detergent for hard surfaces.

[0042] In the method for cleaning a hard surface of this embodiment, for example, a liquid detergent composition filled in a trigger-type sprayer or the like is discharged in foam form, the foamed liquid detergent composition is sprayed onto the hard surface to be treated, and then the foamed liquid detergent composition is wiped off with a cleaning tool.

[0043] The treatment target may be any object having a hard surface, such as a toilet bowl, toilet seat, floor, wall, window, bathtub, tableware, cooking utensils, or sink. Materials to be treated include plastic, fiber reinforced plastic (FRP), glass, stone, ceramics, metal, etc. Examples of cleaning tools include cloth, paper, nonwoven fabric, and scrapers.

[0044] The amount of the liquid detergent composition sprayed onto the treatment object is, for example, 10 to 120 mg / cm 2 It is said that.

[0045] When the liquid detergent composition is sprayed in the form of foam, the density of the foam is, for example, 10 to 45 mg / cm 3 The foam density can be adjusted by combining the viscosity of the liquid detergent composition with the type of trigger sprayer.

[0046] The foamed liquid detergent composition may be sprayed onto a hard surface and then immediately wiped off, or may be sprayed onto a hard surface and then wiped off after a desired time (leaving time) has elapsed (immersion cleaning). The leaving time in immersion cleaning is preferably 0.5 to 10 minutes, more preferably 1 to 5 minutes. If the leaving time is equal to or greater than the above lower limit, the detergency can be further improved. If the leaving time is equal to or less than the above upper limit, the wiping ability can be further improved.

[0047] As described above, according to the present invention, since the components (A) to (C) are contained, the foaming property is excellent, the detergency is enhanced, and the wiping ability is also enhanced. The liquid detergent composition of the present invention is suitable for use in toilets, bathrooms and kitchen utensils, and is particularly suitable for use in toilets. [Example]

[0048] The present invention will be described in detail below with reference to examples, but the present invention is not limited to the following description.

[0049] (Raw materials used) <Component (A): At least one selected from amphoteric surfactants and semi-polar surfactants> A-1: Amphoteric surfactant, lauric acid amide propyl betaine (referred to as "LPB" in the table; manufactured by Lion Corporation, "Energycol L-30B"). A-2: Amphoteric surfactant, lauryl dimethylaminoacetic acid betaine (referred to as "LDB" in the table; manufactured by Sanyo Chemical Industries, Ltd., "Levon LD-36"). A-3: Amphoteric surfactant, stearyl dimethylaminoacetic acid betaine (referred to as "SDB" in the table; manufactured by Kao Corporation, "Amphitol 86B"). A-4: Semi-polar surfactant, n-dodecyldimethylamine oxide (referred to as "C12AX" in the table; manufactured by Lion Specialty Chemicals Co., Ltd., "Cadenax DM12D-W").

[0050] <Component (B): Polyoxyalkylene ether> B-1: POE (polyoxyethylene) stearyl ether (shown as "C18EO40" in the table. EO (average number of repeating oxyethylene groups): 40) (manufactured by Nippon Emulsion Co., Ltd., "Emalex 640"). B-2: POE lauryl ether (EO50) (listed as "C12EO50" in the table; manufactured by Nippon Emulsion Co., Ltd., "Emalex 750"). B-3: POE isotridecyl ether (EO60) (referred to as "C13EO60" in the table; manufactured by Lion Chemical Co., Ltd., "TA600-75").

[0051] <Component (B'): Comparison product of component (B)> B'-1: POE stearyl ether (EO5) (referred to as "C18EO5" in the table; manufactured by Nippon Emulsion Co., Ltd., "Emalex 605"). B'-2: POE stearyl ether (EO20) (referred to as "C18EO20" in the table; manufactured by Nippon Emulsion Co., Ltd., "Emalex 620").

[0052] <Component (C): Chelating agent> <Component (c1): Aminocarboxylic acid chelating agent> C1-1: Ethylenediaminetetraacetic acid (referred to as "EDTA" in the table; manufactured by Akzo Nobel, "Dissolvin NA2"). · C1-2: Trisodium methylglycine diacetate (referred to as "MGDA" in the table; manufactured by BASF, "Trilon M"). · C1-3: Tetrasodium glutamate diacetate (referred to as "GLDA-Na" in the table; manufactured by Akzo Nobel).

[0053] <Component (c2): Polycarboxylic acid chelating agent> C2-1: Citric acid (Fuso Chemical Co., Ltd., "Purified citric acid (anhydrous)"). C2-2: Lactic acid (Wako Pure Chemical Industries, Ltd., reagent). C2-3: Malic acid (Wako Pure Chemical Industries, Ltd., reagent).

[0054] <Optional ingredients> pH adjuster: sulfuric acid (Kanto Chemical Co., Ltd.), potassium hydroxide: liquid caustic potash (Asahi Glass Co., Ltd.). Ethanol: "Synthetic 95" manufactured by Japan Alcohol Sales Co., Ltd.

[0055] (Evaluation method) <Foam durability> Each liquid detergent composition was placed in a 100 mL glass beaker. A wire ring with an inner diameter of 10 mm was immersed in the liquid detergent in the glass beaker and then pulled out. After pulling out, the time until the foam film formed inside the ring broke was measured, and the foam film stability was evaluated based on the following evaluation criteria. ◎, ◎, and ◯ were considered to be acceptable.

[0056] <Evaluation Criteria> ◎◎:More than 40 seconds. ◎: More than 35 seconds but less than 40 seconds. ○: More than 30 seconds but less than 35 seconds. △: More than 20 seconds but less than 30 seconds. ×: Less than 20 seconds.

[0057] <Bubble amount> Each liquid detergent example was placed in a dispenser container (Yoshino Kogyosho Co., Ltd.'s "TA-FA," a foam trigger sprayer container (accumulator type), one stroke (approximately 0.8 g / stroke)). Five strokes of the liquid detergent were dispensed into a 200 mL tall beaker using this dispenser. The foam height was measured with a ruler, and the foam height per dispensed weight was calculated. Foaming ability was evaluated based on the following evaluation criteria. Excellent, Excellent, and Good were considered acceptable.

[0058] <Evaluation Criteria> ◎◎: Foam height is 1.8cm / g or more. ◎: Foam height is 1.5cm / g or more but less than 1.8cm / g. Good: Foam height is 1.2cm / g or more but less than 1.5cm / g. ×: The bubble height is less than 1.2 cm.

[0059] <Wipeability> Liquid detergent of each example Each liquid detergent of each example was placed in a dispenser container (Yoshino Kogyosho Co., Ltd.'s "TA-FA", a foam trigger sprayer container (accumulator type), 1 stroke (approximately 0.8 g / stroke)). Using this dispenser, it was placed on a clean tile (15 cm x 15 cm). After leaving it for 5 minutes, it was evaluated for ease of wiping (low resistance) when wiped with toilet paper folded in three. Excellent, Excellent, and Good were deemed acceptable.

[0060] <Evaluation Criteria> ◎◎: No wiping marks are left behind and there is no stickiness whatsoever. ◎: Very thin, linear wipe marks remain, but they are not sticky and are not noticeable. ○: Slightly thin line-like wiping marks remain, but stickiness is not noticeable. △: Wiping marks remain in some places and stickiness is felt. ×: Wiping marks remain all over the surface and stickiness is felt.

[0061] <Cleaning power> 100 μL of urine from five adult males was placed on a PP plate and left at room temperature for 24 hours to dry. After drying, each liquid detergent was placed in a dispenser (Yoshino Kogyosho Co., Ltd.'s "TA-FA," a foam trigger sprayer container (accumulator type), one stroke (approximately 0.8 g / stroke)). This dispenser was used to dispense the cleaning solution onto the stained PP plate. After leaving it for 5 minutes, the stain was wiped off with toilet paper folded in three, and the remaining stain was evaluated according to the following evaluation criteria. ◎◎, ◎, and ◯ were considered acceptable.

[0062] <Evaluation Criteria> ◎◎: Dirt is completely removed. ◎: Most of the dirt has been removed. O: About half of the dirt has been removed. △: Some dirt has been removed. ×: No dirt was removed at all.

[0063] (Examples 1 to 59, Comparative Examples 1 to 5 ) Each component was dispersed in water according to the formulations in Tables 1 to 7 to prepare a liquid detergent composition with a pH of 7. Each liquid detergent composition was evaluated for foam persistence, foam volume, wiping ability, and detergency, and the results are shown in the tables. However, Examples 1 to 4, 6 to 11, 13 to 16, 30 to 32, 36, 38, 45, 46, and 51 to 55 are reference examples.

[0064] [Table 1]

[0065] [Table 2]

[0066] [Table 3]

[0067] [Table 4]

[0068] [Table 5]

[0069] [Table 6]

[0070] [Table 7]

[0071] As shown in Tables 1 to 7, Examples 1 to 59 in which the present invention was applied were all rated as "good", "double", or "double" in the evaluations of foam persistence, foam volume, wiping ability, and detergency. Comparative Example 1, which contained component B'-1 instead of component (B), was rated "B" in the evaluations of foam persistence, foam volume, wiping ability and detergency. Comparative Example 2, which contained component B'-2 instead of component (B), had foam persistence of "Fair", wiping ability of "Fair", and detergency of "Fair". Comparative Example 3, which did not contain component (A), was rated as "x" for foam persistence, "x" for wiping ability, "x" for foam volume, and "Δ" for detergency. Comparative Example 4, which did not contain component (B), was rated as "x" for foam persistence, "fair" for wiping ability, and "fair" for detergency. Comparative Example 5, which did not contain component (C), had a detergency rating of "poor." Comparative Example 6, which had a viscosity of 50 mPa·s, was unable to generate foam, and was rated "X" in the evaluations of foam persistence, foam volume, wiping ability, and detergency. From the above results, it was confirmed that by applying the present invention, it is possible to improve the wiping properties and detergency of a liquid detergent composition for hard surfaces.

Claims

1. Component (A): an amidobetaine amphoteric surfactant; Component (B): a polyoxyalkylene alkyl ether represented by the following formula (b), (C) component: a chelating agent; A liquid cleaning composition for hard surfaces comprising: The content of the component (A) is 0.25 to 6% by mass based on the total mass of the liquid detergent composition for hard surfaces, The content of the component (B) is 0.1 to 5% by mass based on the total mass of the liquid detergent composition for hard surfaces, the total amount of the component (A), the component (B), and the component (C) is 1.78 to 13% by mass based on the total mass of the liquid detergent composition for hard surfaces; the mass ratio of the component (A) to the component (B) is 2 to 4, and a viscosity of 10 mPa·s or less. R-(OC ２ H ４ ) ｎ -OH ・・・(b) (In formula (b), R is an aliphatic hydrocarbon group having 12 to 18 carbon atoms, and n is (OC ２ H ４ ) is a number representing the average number of repetitions, and n is 60 to 70.

2. The component (C) includes the following component (c1) and component (c2): The liquid detergent composition for hard surfaces according to claim 1, wherein the mass ratio of the component (c1) to the component (c2) is 1.5 to 10. Component (c1): an aminocarboxylic acid chelating agent. Component (c2): a polycarboxylic acid-based chelating agent.

3. A method for cleaning a hard surface, comprising spraying the liquid detergent composition for hard surfaces according to claim 1 or 2 onto an object to be treated, and wiping off part or all of the sprayed liquid detergent for hard surfaces.

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