How to clean the surface

Abstract

To provide a cleaning method of a target surface, which has excellent cleaning performance for lipid / protein composite stains adhered to the target surface by spreading a detergent composition on the target surface in a wet state.SOLUTION: Provided is a cleaning method of a target surface, comprising bringing a mixture of foam and liquid, formed from a detergent composition containing a surfactant by using a foam forming means, into contact with the target surface, where the foam forming means is used under conditions of forming a mixture of foam and liquid which satisfies the followings (1) and (2) from the detergent composition. (1) The specific volume of the foam after 20 seconds from foam formation is 2 ml / g to 11 ml / g. (2) The volume ratio of the foam phase and the liquid phase (foam phase / liquid phase) after 20 seconds from foam formation is 1 ml / ml to 100 ml / ml.SELECTED DRAWING: None

Description

[Technical Field]

[0001] The present invention relates to a method for cleaning a target surface. [Background technology]

[0002] A cleaning method in which a detergent composition is sprayed onto the surface to be cleaned and brought into contact with the dirt is commonly used because of its simplicity. In addition, a technique in which the detergent is supplied in the form of foam is also widely used to improve the adhesion and retention of the detergent on the surface. Patent Document 1 discloses a technology for a bottled bathroom cleaner, in which the liquid cleaner is filled in a foam-dispensing container, and the foam-dispensing container can dispense the liquid cleaner as foam of 100 mL / 20 g or more and 200 to 1000 mPa·s under conditions of 20°C. Patent Document 2 discloses a liquid detergent composition for hard surfaces that has an excellent foam specific volume, a method for cleaning hard surfaces, and a technology for a detergent article for hard surfaces in a spray container. Patent Document 3 discloses a technology in which foam prepared from a liquid dishwashing detergent composition containing a surfactant and water, (I) having an initial foam specific volume (ml / g) of 20 to 50 and (II) having a foam specific volume (ml / g) of 10 or less after 5 minutes, is brought into contact with the surface of dishes on which oily stains have adhered, thereby cleaning the surface without applying mechanical force. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] Japanese Patent Application Publication No. 2017-78130 [Patent Document 2] Japanese Patent Application Publication No. 2018-135489 [Patent Document 3] Japanese Patent Application Laid-Open No. 2016-198765 Summary of the Invention [Problem to be solved by the invention]

[0004] Generally, when a detergent composition is brought into contact with a soiled surface in the form of foam, the cleaning ingredients contained in the foam adhere to and remain on the surface, allowing them to be in contact with the dirt for a longer period of time, thereby enhancing cleaning power. However, the cleaning ingredients are held in the foam and do not easily penetrate the dirt adhered to the surface, making it difficult to say that the cleaning ingredients are being used efficiently. Furthermore, when a detergent composition is sprayed in the form of foam onto a soiled surface, the foam does not wet and spread over the surface, making it difficult to say that the cleaning ingredients contained in the foam are being used efficiently. On the other hand, when a cleaning composition is brought into liquid contact with a target surface having dirt attached thereto, the liquid may run off the target surface, preventing the cleaning components contained in the liquid from adhering to and retaining on the dirt, and thus preventing the expected cleaning effect from being achieved.

[0005] The present invention provides a method for cleaning a target surface, which has excellent cleaning properties for lipid / protein complex soils adhering to the target surface by wetting and spreading the detergent composition over the target surface. [Means for solving the problem]

[0006] The present invention provides a method for cleaning a target surface, which comprises contacting a mixture of foam and a liquid formed from a detergent composition (hereinafter referred to as the detergent composition of the present invention) containing (a) a surfactant [hereinafter referred to as component (a)] using a foam-forming means with the target surface, The present invention relates to a method for cleaning a target surface, in which the foam-forming means is used under conditions for forming a mixture of foam and liquid from the cleaning composition that satisfies the following (1) and (2): (1) A foam specific volume of 2 ml / g or more and 11 ml / g or less 20 seconds after foam formation (2) The volume ratio of the foam phase to the liquid phase (foam phase / liquid phase) 20 seconds after foam formation is 1 ml / ml or more and 100 ml / ml or less. [Effects of the Invention]

[0007] According to the present invention, there is provided a method for cleaning a target surface, in which a detergent composition is wetted and spread over the target surface, thereby achieving excellent cleaning properties for lipid / protein complex soils adhering to the target surface. DETAILED DESCRIPTION OF THE INVENTION

[0008] [Method for cleaning target surfaces] The reason why the method for cleaning a target surface of the present invention has excellent cleaning properties for lipid / protein complex soils adhering to a target surface by wetting and spreading the detergent composition over the target surface is not entirely clear, but is presumed to be as follows. It is known that protein components that adhere to hard surfaces become more resistant to dirt when combined with lipid components, making it difficult to remove the dirt in a short time without scrubbing. This is thought to be because lipid components prevent the cleaning ingredients necessary for protein cleaning from penetrating into the protein, and because lipid components interact with the molecules that make up the protein, preventing the protein from swelling. Therefore, if a detergent composition containing the surfactant, component (a) of the present invention, can be uniformly applied to lipid / protein complex stains, component (a) can remove the lipid components in the lipid / protein complex stains and promote the swelling of the proteins, making it possible to remove the complex lipid / protein complex stains in a short time without scrubbing. However, when a detergent composition containing component (a) is sprayed using a trigger sprayer or the like, the foam formed from the detergent composition generally has high foaming properties, making it difficult to uniformly apply the foam to lipid / protein complex soils adhering to the target surface. On the other hand, in the method for cleaning a target surface of the present invention, the detergent composition of the present invention containing component (a) is used under conditions in which a foam-forming means forms a foam-liquid mixture in which (1) the specific foam volume 20 seconds after foam formation and (2) the volume ratio of the foam phase to the liquid phase (foam phase / liquid phase) 20 seconds after foam formation are within specific ranges. This causes the foam-liquid mixture to wet and spread over the target surface, allowing the detergent composition, which is a mixture of foam and liquid, to be uniformly applied to lipid / protein complex stains adhering to the target surface, thereby exerting the cleaning effect of component (a) and providing excellent cleaning performance for lipid / protein complex stains.

[0009] The method for cleaning a target surface of the present invention uses a foam-forming means under the conditions that a mixture of foam and liquid formed from the detergent composition of the present invention satisfies the following (1) and (2): (1) A foam specific volume of 2 ml / g or more and 11 ml / g or less 20 seconds after foam formation (2) The volume ratio of the foam phase to the liquid phase (foam phase / liquid phase) 20 seconds after foam formation is 1 ml / ml or more and 100 ml / ml or less.

[0010] In the method for cleaning a target surface of the present invention, the specific foam volume of the mixture of foam and liquid 20 seconds after foam formation is 2 ml / g or more, preferably 2.3 ml / g or more, more preferably 2.5 ml / g or more, from the viewpoint of wetting and spreading properties and cleaning performance for lipid / protein complex soils, and 11 ml / g or less, preferably 10.5 ml / g or less, more preferably 10 ml / g or less, even more preferably 9.5 ml / g or less, and even more preferably 9 ml / g or less, from the viewpoint of wetting and spreading properties and cleaning performance for lipid / protein complex soils.

[0011] In the present invention, the specific foam volume 20 seconds after foam formation of a mixture of foam and liquid refers to the specific foam volume of the mixture of foam and liquid 20 seconds after foam is formed using a foam-forming means, i.e., a trigger-type sprayer or the like having a foam-forming mechanism. More specifically, it can be measured by the following method. The mass (g) of a 200 ml graduated cylinder is measured using a double-digit balance (a). The trigger of a trigger-type sprayer with a foam-forming mechanism is pulled 10 times to dispense the cleaning composition of the present invention into a 200 ml graduated cylinder in the form of foam. 20 seconds after the discharge, the mass (g) of the 200 ml graduated cylinder and the foam / liquid mixture are measured using a double-digit balance (b), and the volume (ml) of the foam / liquid mixture in the graduated cylinder is measured (c). The specific foam volume of the foam / liquid mixture is calculated using the following formula. Note that the measurement of the specific foam volume is carried out in an environmentally controlled room maintained at 20°C. Foam specific volume (ml / g) of foam-liquid mixture = (c) / {(b)-(a)}

[0012] In the method for cleaning a target surface of the present invention, the volume ratio of the foam phase to the liquid phase (foam phase / liquid phase) 20 seconds after foam formation of the foam and liquid mixture is 1 ml / ml or more, preferably 2 ml / ml or more, more preferably 3 ml / ml or more, and even more preferably 3.5 ml / ml or more, from the viewpoints of wetting and spreading properties and cleaning performance for lipid / protein complex soils, and is 100 ml / ml or less, preferably 90 ml / ml or less, more preferably 80 ml / ml or less, even more preferably 75 ml / ml or less, still more preferably 70 ml / ml or less, still more preferably 65 ml / ml or less, still more preferably 60 ml / ml or less, still more preferably 55 ml / ml or less, and still more preferably 50 ml / ml or less, from the viewpoints of wetting and spreading properties and cleaning performance for lipid / protein complex soils.

[0013] In the present invention, the volume ratio of the foam phase to the liquid phase (foam phase / liquid phase) 20 seconds after foam formation in a mixture of foam and liquid refers to the volume ratio of the separated foam phase to the liquid phase (foam phase / liquid phase) 20 seconds after foam is formed using a foam-forming means, i.e., a trigger-type sprayer or the like having a foam-forming mechanism. More specifically, it can be measured by the following method. The cleaning composition of the present invention is dispensed into a 200 ml measuring cylinder in the form of foam by pulling the trigger 10 times from a trigger-type sprayer equipped with a foam-forming mechanism. 20 seconds after dispensing, the volumes (ml) of the foam phase and liquid phase separated in the measuring cylinder are measured, and the volume ratio of the foam phase to the liquid phase (foam phase / liquid phase) is calculated. The volume ratio of the foam phase to the liquid phase (foam phase / liquid phase) is measured in an environmentally controlled room maintained at 20°C.

[0014] The cleaning composition of the present invention, which is used in the method for cleaning a target surface of the present invention, will be described below.

[0015] <Component (a)> The cleaning composition of the present invention contains a surfactant as component (a). The surfactant of component (a) may be at least one selected from the group consisting of (a1) anionic surfactants (hereinafter referred to as component (a1)), (a2) amphoteric surfactants (hereinafter referred to as component (a2)), (a3) nonionic surfactants (hereinafter referred to as component (a3)), and (a4) cationic surfactants (hereinafter referred to as component (a4)). From the viewpoints of wetting and spreading properties and cleaning performance for lipid / protein complex soils, the detergent composition of the present invention preferably contains one or more selected from component (a1), component (a2), and component (a4), and more preferably contains component (a1).

[0016] (a1) 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 groups, and carboxylic acid groups. Examples of anionic surfactants include alkyl or alkenyl benzenesulfonic acids or salts thereof, polyoxyalkylene alkyl or alkenyl ether sulfate esters or salts thereof, alkyl or alkenyl sulfate esters or salts thereof, internal olefin sulfonic acids or salts thereof, and fatty acids or salts thereof. From the viewpoint of cleaning performance for lipid / protein complex soils, component (a1) is preferably one or more selected from alkyl or alkenyl sulfate esters or salts thereof, polyoxyalkylene alkyl or alkenyl ether sulfate esters or salts thereof, internal olefin sulfonic acids or salts thereof, and alkyl or alkenyl benzene sulfonic acids or salts thereof. The salt of the anionic surfactant is preferably an alkali metal salt such as a sodium salt or a potassium salt.

[0017] From the viewpoint of cleaning performance for lipid / protein complex soils, the number of carbon atoms in the alkyl or alkenyl group of the alkyl or alkenyl sulfate ester or salt thereof is preferably 8 or more, more preferably 10 or more, and preferably 24 or less, more preferably 20 or less, even more preferably 18 or less, still more preferably 16 or less, and still more preferably 12 or less.

[0018] From the viewpoint of cleaning performance for lipid / protein complex soils, the number of carbon atoms in the alkyl or alkenyl group of the polyoxyalkylene alkyl or alkenyl ether sulfate ester or its salt is preferably 8 or more, more preferably 10 or more, and preferably 24 or less, more preferably 20 or less, even more preferably 18 or less, and even more preferably 16 or less. The oxyalkylene group of the polyoxyalkylene alkyl or alkenyl ether sulfate ester or its salt is preferably an ethyleneoxy group. The average number of moles of oxyalkylene groups added in the polyoxyalkylene alkyl or alkenyl ether sulfate ester or its salt is preferably 0.5 or more, more preferably 1 or more, more preferably 2 or more, and preferably 5 or less, more preferably 3 or less.

[0019] From the viewpoint of cleaning performance for lipid / protein complex soils, the number of carbon atoms of the internal olefin sulfonic acid or its salt is preferably 8 or more, more preferably 10 or more, even more preferably 12 or more, still more preferably 14 or more, and preferably 24 or less, more preferably 20 or less, even more preferably 18 or less.

[0020] From the viewpoint of cleaning performance for lipid / protein complex soiling, the number of carbon atoms in the alkyl or alkenyl group of the alkyl or alkenyl benzenesulfonic acid or salt thereof is preferably 8 or more, more preferably 10 or more, and preferably 24 or less, more preferably 20 or less, even more preferably 18 or less, still more preferably 16 or less, and still more preferably 14 or less.

[0021] The amphoteric surfactant (a2) may be one or more surfactants selected from betaine surfactants and amine oxide surfactants. Specific examples of the component (a2) include one or more surfactants selected from sulfobetaine, carbobetaine, and amine oxide.

[0022] Examples of sulfobetaines include N-alkyl-N,N-dimethyl-N-sulfopropylammonium sulfobetaine, in which the alkyl group has preferably 10 or more carbon atoms and preferably 18 or less, more preferably 14 or less; N-alkyl-N,N-dimethyl-N-(2-hydroxysulfopropyl)ammonium sulfobetaine, in which the alkyl group has preferably 10 or more carbon atoms and preferably 18 or less, more preferably 14 or less; N-alkanoylaminopropyl-N,N-dimethyl-N-sulfopropylammonium sulfobetaine, in which the alkanoyl group has preferably 10 or more carbon atoms and preferably 18 or less, more preferably 14 or less; and N-alkanoylaminopropyl-N,N-dimethyl-N-(2-hydroxysulfopropyl)ammonium sulfobetaine, in which the alkanoyl group has preferably 10 or more carbon atoms and preferably 18 or less, more preferably 14 or less.

[0023] Examples of carbobetaines include N-alkyl-N,N-dimethyl-N-carboxymethylammonium betaines in which the number of carbon atoms in the alkyl group is preferably 10 or more and preferably 18 or less, more preferably 14 or less, and compounds represented by the following general formula (a21):

[0024] [ka]

[0025] [In the formula, R 21a represents an alkyl or alkenyl group having 7 to 21 carbon atoms, and R 22a represents a propylene group, and R 23a and R 24a each independently represents an alkyl group having 1 to 3 carbon atoms.

[0026] In general formula (a21), R 21a is an alkyl or alkenyl group having preferably 9 or more, more preferably 11 or more, and preferably 15 or less, more preferably 13 or less carbon atoms, and is preferably a nonyl group, a decyl group, an undecyl group, a dodecyl group, or a tridecyl group. In general formula (a21), R 23a and R 24a are each independently preferably a methyl group.

[0027] As the amine oxide, a compound of the following general formula (a22) is suitable.

[0028] [ka]

[0029] [In the formula, R 25a represents a hydrocarbon group having 7 to 22 carbon atoms, preferably an alkyl or alkenyl group, more preferably an alkyl group; R 26a and R 27a are the same or different and represent an alkyl group having 1 to 3 carbon atoms; D represents an -NHC(=O)- group or a -C(=O)NH- group; E represents an alkylene group having 1 to 5 carbon atoms; m and p represent m=0 and p=0 or m=1 and p=1.

[0030] In the above general formula (a22), when m=1 and p=1, R 25a From the viewpoint of cleaning performance, R is preferably an alkyl group having 9 to 18 carbon atoms, more preferably an alkyl group having 11 to 16 carbon atoms, even more preferably an alkyl group having 11 to 14 carbon atoms, and even more preferably an alkyl group having 11 carbon atoms. When m=0 and p=0, R 25a From the viewpoint of cleaning performance, R is preferably an alkyl group having 10 to 18 carbon atoms, more preferably an alkyl group having 12 to 16 carbon atoms, even more preferably an alkyl group having 12 to 14 carbon atoms, and even more preferably an alkyl group having 12 carbon atoms. In the present invention, it is preferable that m=0 and p=0. R 26a , R 27a is preferably a methyl group having one carbon atom from the viewpoint of cleaning performance.

[0031] Examples of (a3) nonionic surfactants include polyoxyalkylene alkyl ethers having an alkyl group containing from 8 to 18 carbon atoms, polyoxyalkylene alkenyl ethers having an alkenyl group containing from 8 to 18 carbon atoms, polyoxyalkylene sorbitan fatty acid esters having a fatty acid group containing from 8 to 18 carbon atoms, alkyl glycosides having an alkyl group containing from 8 to 18 carbon atoms, alkyl polyglycosides having an alkyl group containing from 8 to 18 carbon atoms, sucrose fatty acid esters having a fatty acid group containing from 8 to 18 carbon atoms, and alkyl polyglyceryl ethers having an alkyl group containing from 8 to 18 carbon atoms, and these can be used alone or in combination. Component (a3) is preferably a polyoxyethylene alkyl ether having an alkyl group containing from 8 to 18 carbon atoms and an average number of moles of ethylene oxide added of from 2 to 50.

[0032] The component (a3) is preferably a nonionic surfactant represented by the following general formula (a3). R 31a -O-[(C2H4O) s (C3H6O) t ]-H (c3) [In the formula, R 31a is an alkyl or alkenyl group having 8 or more carbon atoms, preferably 10 or more, and 18 or less, preferably 16 or less, and more preferably 14 or less. s and t are the average number of moles added, s is 2 or more, preferably 3 or more, more preferably 5 or more, even more preferably 7 or more, and 50 or less, preferably 30 or less, and more preferably 20 or less. t is 0 or more, preferably 1 or more, and 5 or less, preferably 3 or less, and t may be 0. (C2H4O) and (C3H6O) may be random polymers or block polymers.

[0033] (a4) Examples of cationic surfactants include quaternary ammonium salt cationic surfactants, in which one or two of the groups bonded to the nitrogen atom are hydrocarbon groups, preferably alkyl groups, having from 6 to 18 carbon atoms, preferably from 8 to 14 carbon atoms, and particularly preferably from 10 to 12 carbon atoms, and the remaining groups are alkyl groups having from 1 to 3 carbon atoms, hydroxyalkyl groups having from 1 to 3 carbon atoms, and arylalkyl groups (benzyl groups, etc.), preferably groups selected from the group consisting of methyl groups, ethyl groups, and benzyl groups.

[0034] From the viewpoint of wetting and spreading properties and cleaning performance for lipid / protein complex soils, the detergent composition of the present invention preferably contains, among the component (a), component (a1), and more preferably contains one or more selected from alkyl or alkenyl sulfate esters or salts thereof, and polyoxyalkylene alkyl or alkenyl ether sulfate esters or salts thereof.

[0035] <(b) Component> The detergent composition of the present invention may contain a foam quality regulator as component (b) from the viewpoint of improving the coverage when the detergent composition is applied to a target surface. The foam quality regulator of component (b) may be one or more selected from (b1) a silicone-based antifoaming agent (hereinafter referred to as component (b1)) and (b2) a compound having a solubility parameter δ of 15.0 or more and 19.5 or less (hereinafter referred to as component (b2)). The cleaning composition of the present invention preferably contains the component (b1) and the component (b2) as the component (b), from the viewpoint of improving the coverage when the cleaning composition is attached to a target surface.

[0036] Examples of the silicone-based antifoaming agent of component (b1) include those containing unmodified silicone oil as the main component and further containing one or more components selected from modified silicone and silica. Commercially available products may be used, or an appropriate combination of components selected from these three components (containing either or both of unmodified silicone oil and modified silicone) may be used.

[0037] The unmodified silicone oil has a molecular weight of 1,000 or more, preferably 3,000 or more, more preferably 5,000 or more, and 1,000,000 or less, preferably 500,000 or less, more preferably 250,000 or less, and a viscosity at 25°C of 10 mm 2 / s or more, preferably 50 mm 2 / s or more, preferably 500 mm 2 / s or more, more preferably 1,000 mm 2 / s or more and 100,000 mm 2 / s or less, preferably 50,000 mm 2 / s or less, and particularly preferably 40,000 mm 2 Examples of the dimethylpolysiloxane include dimethylpolysiloxanes having a viscosity of 1 / s or less.

[0038] The modified silicone may be one or more silicone compounds selected from quaternary ammonium-modified dimethylpolysiloxane, amino-modified dimethylpolysiloxane, amide-modified dimethylpolysiloxane, epoxy-modified dimethylpolysiloxane, carboxy-modified dimethylpolysiloxane, polyoxyalkylene-modified dimethylpolysiloxane, and fluorine-modified dimethylpolysiloxane.

[0039] The amino-modified dimethylpolysiloxane has an amino equivalent (amino equivalent is the molecular weight per nitrogen atom) of 1,500 g / mol or more, preferably 2,500 g / mol or more, more preferably 3,000 g / mol or more, and 40,000 g / mol or less, preferably 20,000 g / mol or less, more preferably 10,000 g / mol or less. The polyoxyalkylene-modified dimethylpolysiloxane may be a compound in which the amount of ethylene oxide and / or propylene oxide added is 3 mol % or more and 97 mol % or less on average based on the dimethylsiloxane.

[0040] From the viewpoint of the coverage rate when the detergent composition is applied to a target surface, it is preferable that the component (b1) contains unmodified silicone oil as a main component and further contains silica.

[0041] Component (b2) is a compound with a solubility parameter δ of 15.0 or more and 19.5 or less. Examples of component (b2) include compounds having a solubility parameter δ calculated by the well-known formula below, which is 15.0 or more, preferably 15.5 or more, more preferably 16.0 or more, even more preferably 16.5 or more, more preferably 17.0 or more, and is 19.5 or less, preferably 19.0 or less, more preferably 18.5 or less, more preferably 18.0 or less, from the viewpoint of the coverage when the detergent composition is adhered to a target surface. (b2) The solubility parameter δ for a component is the heat of vaporization per mole of organic solvent, ΔH (cal / mol), and the molar volume, V (cm 3 mol), δ = (ΔH / V) 1 / 2 is the value defined by δ=(ΔH / V) 1 / 2 δ: Solubility parameter (sp value) [(J / cm 3 ) 1 / 2 〕 ΔH: Molar heat of vaporization V: molar volume

[0042] In addition, when determining the solubility parameter δ, the values described in the following non-patent literature are used. Non-Patent Document 1: Barton, AFM; CRC Handbook of Solubility Parameters and Other Cohesive Parameters 2 ndEd., p102(CRC Press). Polymer Handbook p VII528. Non-patent document 2: Fedors, RF; Polym. Eng. Sci., 1974, 14, (2), 147. Non-patent document 3: Meusburger, KE; “Pesticide Formulations: Innovations and Developments”, Chapter 14 (Am. Chem. Soc.), 1988, 151.

[0043] The component (b2) may have an ether group, an amide group, an ester group, etc., so long as the solubility parameter δ is within the above range. Examples of the component (b2) include one or more selected from hydrocarbons having a total carbon number of 6 to 30, ester compounds having a carbon number of 8 to 24, and aliphatic alcohols. In the present invention, ester compounds having a carbon number of 8 to 24 are preferred.

[0044] Specific examples of hydrocarbons include olefin hydrocarbons, paraffin hydrocarbons, aromatic hydrocarbons, and terpene hydrocarbons.

[0045] As the olefin hydrocarbon, linear olefin compounds such as hexene, octene, decene, dodecene, and tetradecene, branched olefin compounds such as diisobutylene and triisobutylene, and cyclic olefin compounds such as cyclohexene and dicyclopentene can be used.

[0046] Examples of paraffin hydrocarbons that can be used include linear paraffin compounds such as hexane, heptane, octane, nonane, decane, undecane, dodecane, tridecane, tetradecane, pentadecane, hexadecane, heptadecane, and octadecane, branched paraffin compounds such as isohexane, isoheptane, isooctane, isohexane, isododecane, isotridecane, isotetradecane, isopentadecane, isohexadecane, isoheptadecane, and isooctadecane, and cyclic paraffin compounds such as cyclohexane. Examples of isoparaffins that can be used include light isoparaffins, heavy isoparaffins, liquid isoparaffins, and polyisobutene.

[0047] Examples of aromatic hydrocarbons include toluene, xylene, and cumene.

[0048] Terpene compounds that can be used include monoterpene compounds, which are dimers of isoprene, sesquiterpene compounds, which are trimers, and diterpene compounds, which are tetramers. Specific examples of terpene compounds that can be used include α-pinene, β-pinene, camphene, limonene, dipentene, terpinolene, myrcene, β-caryophyllene, and cedrene, with limonene, dipentene, and terpinolene being particularly preferred.

[0049] The aliphatic alcohol may be at least one selected from dodecanol, tetradecanol, hexadecanol, octadecanol, eicosanol, and structural isomers of the above alcohols.

[0050] The component (b2) is preferably an ester compound having a carbon number of 6 or more and 24 or less, provided that the solubility parameter δ is within the above range. The number of carbon atoms in the ester compound is preferably 8 or more and preferably 22 or less, more preferably 20 or less, from the viewpoint of improving the coverage when the detergent composition is adhered to a target surface. From the viewpoint of improving the coverage when the cleaning composition is applied to a target surface, the ester compound is preferably an ester compound of a carboxylic acid and an alcohol, more preferably an ester compound of a monovalent to trivalent carboxylic acid and a monovalent to trivalent alcohol, provided that the number of carbon atoms in the ester compound satisfies the above range.

[0051] The number of carbon atoms in the raw material carboxylic acid in the ester compound is preferably 2 or more, more preferably 6 or more, even more preferably 10 or more, and preferably 21 or less, more preferably 20 or less, even more preferably 18 or less, from the viewpoint of the coverage when the detergent composition is adhered to a target surface. The raw material carboxylic acid in the ester compound is monovalent or more and trivalent or less, preferably divalent or less, from the viewpoint of the coverage when the detergent composition is attached to a target surface. The raw carboxylic acid for the ester compound is not particularly limited, but is a carboxylic acid having a linear or branched alkyl group, and examples thereof include one or more selected from acetic acid, octanoic acid, propionic acid, butyric acid, isobutyric acid, valeric acid, pivalic acid, caproic acid, benzoic acid, 2-ethylhexanoic acid, enanthic acid, caprylic acid, pelargonic acid, capric acid, undecylic acid, lauric acid, myristic acid, palmitic acid, stearic acid, arachidic acid, behenic acid, α-linolenic acid, linoleic acid, palmitoleic acid, oleic acid, adipic acid, azelaic acid, palm oil fatty acids, coconut oil fatty acids, beef tallow fatty acids, sebacic acid, and trimesic acid. Among these, from the viewpoint of the coverage rate when the detergent composition is adhered to a target surface, one or more acids selected from acetic acid, octanoic acid, 2-ethylhexanoic acid, enanthic acid, caprylic acid, pelargonic acid, capric acid, undecylic acid, lauric acid, myristic acid, palmitic acid, stearic acid, arachidic acid, behenic acid, α-linolenic acid, linoleic acid, palmitoleic acid, oleic acid, adipic acid, and azelaic acid can be used.

[0052] The number of carbon atoms in the raw material alcohol in the ester compound is preferably 1 or more, more preferably 2 or more, from the viewpoint of the coverage rate when the cleaning composition is adhered to a target surface, and is preferably 20 or less, more preferably 18 or less, even more preferably 16 or less, still more preferably 12 or less, still more preferably 8 or less, still more preferably 6 or less, still more preferably 4 or less, and still more preferably 3 or less, from the viewpoint of the coverage rate when the cleaning composition is adhered to a target surface. The raw material alcohol in the ester compound is monohydric or more and trihydric or less, preferably dihydric or less, more preferably monohydric, from the viewpoint of the coverage when the cleaning composition is attached to a target surface. The raw material alcohol for the ester compound is not particularly limited, but is an alcohol having a linear or branched alkyl group. Examples of the raw material alcohol include one or more selected from methanol, ethanol, propanol, isopropanol, butanol, isobutanol, pentanol, hexanol, heptanol, octanol, nonanol, decanol, dodecanol, tetradecanol, hexadecanol, octadecanol, eicosanol, and structural isomers of these alcohols. From the viewpoint of the coverage when the cleaning composition is applied to a target surface, one or more selected from methanol, ethanol, propanol, isopropanol, butanol, isobutanol, pentanol, hexanol, heptanol, octanol, and structural isomers of these alcohols are preferred.

[0053] The ester compound of a carboxylic acid and an alcohol is not particularly limited, but includes an ester compound of a fatty acid having 6 to 24 carbon atoms and an alcohol, and more specifically, includes one or more selected from isobutyl acetate (carbon number: 6), ethyl hexanoate (carbon number: 8), isobutyl isobutyrate (carbon number: 8), ethyl octanoate (carbon number: 10), hexyl benzoate (carbon number: 13), diisobutyl adipate (carbon number: 14), isopropyl myristate (carbon number: 17), and ethyl oleate (carbon number: 20).

[0054] From the viewpoint of the coverage rate when the cleaning composition is adhered to a target surface, the component (b2) is preferably one or more selected from isobutyl acetate, ethyl hexanoate, isobutyl isobutyrate, ethyl octanoate, hexyl benzoate, diisobutyl adipate, isopropyl myristate, octane, isopropyl palmitate, isopropyl stearate, limonene, 1-dodecanol, and ethyl oleate, more preferably one or more selected from ethyl hexanoate, ethyl octanoate, isopropyl myristate, isobutyl acetate, and ethyl oleate, and even more preferably one or more selected from ethyl octanoate and isopropyl myristate. From the viewpoint of the coverage when the detergent composition is adhered to a target surface, the component (b2) of the present invention is preferably an ester compound having a δ of from 17.0 to 18.1, and is preferably an ester compound of a monovalent fatty acid having from 2 to 18 carbon atoms and an alcohol having from 2 to 4 carbon atoms.

[0055] <(c) component> The detergent composition of the present invention may contain a sequestering agent as component (c) from the viewpoint of cleaning performance for stains containing metal ions. The sequestering agent is preferably one or more compounds selected from aminocarboxylic acid type sequestering agents, hydroxycarboxylic acid type sequestering agents, and hydroxyphosphonic acid type sequestering agents.

[0056] The aminocarboxylic acid type sequestering agent is not particularly limited, but may include one or more selected from ethylenediaminetetraacetic acid (EDTA), nitrilotriacetic acid (NTA), iminodiacetic acid, diethylenetriaminepentaacetic acid (DTPA), N-hydroxyethyl-ethylenediaminetriacetic acid (HEDTA), methylglycine diacetic acid (MGDA), dihydroxyethylglycine (DHEG), hydroxyethyleneiminodiacetic acid (HIDA), aspartic acid diacetic acid (ASDA), glutamic acid diacetic acid (GLDA), and salts thereof. The hydroxycarboxylic acid-type sequestering agent is preferably a compound selected from aliphatic hydroxycarboxylic acids and salts thereof, including malic acid, citric acid, and salts thereof. The hydroxyphosphonic acid type sequestering agent includes a compound selected from 1-hydroxyethylidene-1,1-diphosphonic acid (HEDP) and salts thereof. Examples of the salt of the sequestering agent include alkali metal salts, ammonium salts, amine salts, etc. Alkali metal salts are preferred, and sodium salts or potassium salts are more preferred.

[0057] From the viewpoint of cleaning performance for stains containing metal ions, component (c) is preferably an aminocarboxylic acid-type sequestering agent, and examples thereof include one or more selected from ethylenediaminetetraacetic acid (EDTA), nitrilotriacetic acid (NTA), iminodiacetic acid, diethylenetriaminepentaacetic acid (DTPA), N-hydroxyethyl-ethylenediaminetriacetic acid (HEDTA), methylglycine diacetic acid (MGDA), dihydroxyethylglycine (DHEG), hydroxyethyleneiminodiacetic acid (HIDA), aspartic acid diacetic acid (ASDA), glutamic acid diacetic acid (GLDA), and salts thereof. From the viewpoint of cleaning performance for stains containing metal ions, component (c) is preferably one or more selected from ethylenediaminetetraacetic acid, diethylenetriaminepentaacetic acid, methylglycine diacetic acid, and salts thereof, and more preferably ethylenediaminetetraacetic acid or a salt thereof. Examples of salts of component (c) include alkali metal salts, ammonium salts, amine salts, etc. Alkali metal salts are preferred, and sodium salts or potassium salts are more preferred.

[0058] <(d) component> The detergent composition of the present invention may contain a glycol-based solvent as component (d) from the viewpoint of cleaning performance for lipid / protein complex soils. The term "glycol-based" refers to either a compound having two hydroxyl groups or an ether compound in which one or both hydrogen atoms of the hydroxyl groups are substituted with another group. The ether compound is preferably an aliphatic ether compound. Furthermore, an ether compound in which one hydrogen atom of the hydroxyl group of a glycol compound is substituted with another group is preferred.

[0059] Component (d) is preferably a glycol-based water-soluble solvent having a carbon number of 2 to 12. Water-soluble means that 5 g or more dissolves in 100 g of water at 20°C. The component (d) preferably has an octanol / water partition coefficient (LogP) of 3.5 or less, more preferably 0.79 or less, and preferably -5 or more, more preferably -3 or more.

[0060] The total number of carbon atoms in component (d) is preferably 2 or more, more preferably 3 or more, more preferably 4 or more, even more preferably 5 or more, and even more preferably 6 or more, from the viewpoint of cleaning performance against lipid / protein complex soils, and is preferably 12 or less, preferably 10 or less, and more preferably 8 or less, from the viewpoint of cleaning performance against lipid / protein complex soils.

[0061] From the viewpoint of cleaning performance for lipid / protein complex soils, component (d) can be one or more selected from ethylene glycol (carbon number: 2), propylene glycol (carbon number: 3), diethylene glycol (carbon number: 4), propylene glycol monomethyl ether (carbon number: 4), isoprene glycol (carbon number: 5), propylene glycol monoethyl ether (carbon number: 5), propylene glycol monobutyl ether (carbon number: 7), 3-methyl-3-methoxybutanol (carbon number: 6), ethylene glycol monobutyl ether (carbon number: 6), dipropylene glycol (carbon number: 6), diethylene glycol monobutyl ether (carbon number: 8), diethylene glycol monophenyl ether (carbon number: 10), dibutylene glycol (carbon number: 8), and dipropylene glycol monobutyl ether (carbon number: 10).

[0062] Component (d) is preferably a glycol having 2 or 3 carbon atoms, such as ethylene glycol, polyethylene glycol, propylene glycol, or polypropylene glycol, or a polyether or monoalkyl ether thereof. The alkyl group of this monoalkyl ether preferably has 1 to 4 carbon atoms, and is methyl, ethyl, various propyl groups, or various butyl groups. The various groups include normal, iso, and tertiary.

[0063] From the viewpoint of cleaning performance for lipid / protein complex soils, the component (d) is more preferably one or more selected from propylene glycol (carbon number: 3), propylene glycol monomethyl ether (carbon number: 4), ethylene glycol monobutyl ether (carbon number: 6), propylene glycol monobutyl ether (carbon number: 7), diethylene glycol monobutyl ether (carbon number: 8), diethylene glycol monophenyl ether (carbon number: 10), and dipropylene glycol monobutyl ether (carbon number: 10). It is preferable that the component (d) contains diethylene glycol monobutyl ether (carbon number: 8).

[0064] <(e) component> From the viewpoint of cleaning performance for lipid / protein complex soils, the detergent composition of the present invention may contain an alkanolamine as component (e). Component (e) is not particularly limited, but may include alkylmono- or dialkanolamines having 2 or 3 carbon atoms in the alkanol group, or alkylene oxide adducts thereof (the alkylene oxide has 2 or 3 carbon atoms). Specific examples of component (e) 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 soils, preferred are one or more selected from monoethanolamine, diethanolamine, 1-amino-2-propanol, and N-methylmonoethanolamine, and more preferred are one or more selected from monoethanolamine, diethanolamine, and 1-amino-2-propanol.

[0065] <Composition, etc.> From the viewpoints of wetting and spreading properties and cleaning performance for lipid / protein complex soils, the detergent composition of the present invention contains component (a) in an amount of preferably 1% by mass or more, more preferably 2.5% by mass or more, even more preferably 4% by mass or more, and preferably 15% by mass or less, more preferably 13% by mass or less, even more preferably 10% by mass or less, and still more preferably 7% by mass or less. In the present invention, when component (a1) is contained as component (a), the mass of component (a1) is calculated assuming that sodium ions are the counter ions. When component (a4) is contained as component (a), the mass of component (a4) is calculated assuming that chloride ions are the counter ions.

[0066] In the detergent composition of the present invention, from the viewpoint of wetting and spreading ability and cleaning performance for lipid / protein complex soils, the content of component (a1) in component (a) is preferably 20% by mass or more, more preferably 30% by mass or more, even more preferably 40% by mass or more, still more preferably 50% by mass or more, still more preferably 60% by mass or more, still more preferably 70% by mass or more, still more preferably 80% by mass or more, still more preferably 90% by mass or more, and preferably 100% by mass or less, and may be 100% by mass.

[0067] When the cleaning composition of the present invention contains the component (b1) as the component (b), the cleaning composition of the present invention contains the component (b1) in an amount of preferably 0.1 ppm or more, more preferably 1 ppm or more, even more preferably 3 ppm or more, still more preferably 5 ppm or more, still more preferably 7 ppm or more, and preferably 99 ppm or less, more preferably 75 ppm or less, and even more preferably 50 ppm or less, from the viewpoint of the coverage when the cleaning composition is adhered to a target surface.

[0068] When the detergent composition of the present invention contains the component (b1) as the component (b), the mass ratio (a) / (b1) of the content of the component (a) to the content of the component (b1) is, from the viewpoint of the coverage when the detergent composition is adhered to a target surface, preferably 101 or more, more preferably 333 or more, even more preferably 800 or more, still more preferably 900 or more, still more preferably 1,000 or more, and preferably 1,500,000 or less, more preferably 130,000 or less, still more preferably 100,000 or less, still more preferably 80,000 or less, still more preferably 50,000 or less, still more preferably 30,000 or less, still more preferably 20,000 or less, still more preferably 10,000 or less, and still more preferably 8,000 or less.

[0069] When the cleaning composition of the present invention contains the component (b2) as the component (b), the cleaning composition of the present invention contains the component (b2) in an amount of preferably 0.1% by mass or more, more preferably 0.2% by mass or more, even more preferably 0.3% by mass or more, and preferably 2.9% by mass or less, more preferably 2% by mass or less, even more preferably 1% by mass or less, and still more preferably 0.8% by mass or less, from the viewpoint of the coverage when the cleaning composition is applied to a target surface.

[0070] When the detergent composition of the present invention contains the component (b2) as the component (b), the mass ratio (a) / (b2) of the content of the component (a) to the content of the component (b2) is, from the viewpoint of the coverage when the detergent composition is adhered to a target surface, preferably 0.34 or more, more preferably 1.25 or more, even more preferably 4 or more, still more preferably 6 or more, still more preferably 8 or more, and preferably 150 or less, more preferably 65 or less, even more preferably 33 or less, still more preferably 30 or less, still more preferably 25 or less, still more preferably 20 or less, still more preferably 15 or less, and still more preferably 12 or less.

[0071] When the detergent composition of the present invention contains component (c), from the viewpoint of cleaning performance against stains containing metal ions, the content of component (c) is preferably 1% by mass or more, more preferably 1.5% 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, even more preferably 3% by mass or less. In the present invention, the mass of component (c) is calculated assuming that the component is entirely a sodium salt.

[0072] When the detergent composition of the present invention contains component (d), from the viewpoint of cleaning performance for lipid / protein complex soils, the content of component (d) is preferably 1% by mass or more, more preferably 1.5% by mass or more, even more preferably 2% by mass or more, still more preferably 4% by mass or more, and preferably 30% by mass or less, more preferably 20% by mass or less, even more preferably 10% by mass or less, and still more preferably 7% by mass or less.

[0073] When the detergent composition of the present invention contains component (e), from the viewpoint of cleaning performance for lipid / protein complex soils, the content of component (e) is preferably 0.1% by mass or more, more preferably 0.2% by mass or more, even more preferably 0.3% by mass or more, and preferably 1.9% by mass or less, more preferably 1.5% by mass or less, even more preferably 1% by mass or less, and still more preferably 0.7% by mass or less.

[0074] In order to increase the added value of the product, the detergent composition of the present invention may optionally contain fragrances, colorants, preservatives, antioxidants, antifoaming agents, stabilizers, etc. (excluding the above components (a) to (e)).

[0075] The cleaning composition of the present invention contains water. That is, the balance other than the components (a) to (e) and any optional components is water. The cleaning composition of the present invention contains water in an amount of preferably 50% by mass or more, more preferably 60% by mass or more, even more preferably 70% by mass or more, still more preferably 80% by mass or more, and preferably 99% by mass or less, more preferably 95% by mass or less. The water used is preferably ion-exchanged water, sterilized ion-exchanged water, etc.

[0076] From the viewpoint of cleaning performance against lipid / protein complex soils, the detergent composition of the present invention has a pH at 25°C of preferably 9 or more, more preferably 10 or more, even more preferably 10.5 or more, and preferably less than 12, more preferably 11.5 or less, even more preferably 11 or less.

[0077] The viscosity of the cleaning composition of the present invention at 25°C is preferably 0.1 mPa s or more, more preferably 0.5 mPa s or more, even more preferably 1 mPa s or more, and is preferably 50 mPa s or less, more preferably 30 mPa s or less, even more preferably 10 mPa s or less, from the viewpoint of the coverage when the cleaning composition is adhered to a target surface. The viscosity of the cleaning composition is measured using a Brookfield viscometer (model number: TVB-10, manufactured by Toki Sangyo Co., Ltd., using a No. 19 rotor, at 60 r / min or 1 r / min). The temperature of the cleaning composition is adjusted to 25±1°C.

[0078] <Cleaning method> The present invention provides a method for cleaning a target surface, which comprises contacting a mixture of foam formed from the cleaning composition of the present invention using a foam-forming means and a liquid with the target surface, the method comprising: The method for cleaning a target surface uses the foam-forming means under conditions for forming a mixture of foam and liquid that satisfies the above (1) and (2) from the detergent composition. The cleaning method of the present invention includes a cleaning method in which the detergent composition of the present invention is brought into contact with a target surface having lipid / protein complex soiling attached thereto, and then the surface is left to stand without applying (or being subjected to) external force such as mechanical force. In the present invention, the lipid / protein complex soiling is dispersed and decomposed by the detergent composition, so a high cleaning effect can be achieved by contacting the surface without using a flexible material such as a sponge or fingers, and by leaving the surface to stand without applying external force such as mechanical force. This makes the detergent composition suitable for cleaning areas that are difficult to reach with hands or tools, or for cleaning small areas that are difficult to reach. Leaving the surface without applying external force such as mechanical force means, for example, that no intentional cleaning operation is performed other than contacting the composition. For example, the term "leaving the surface without applying external force" can be understood to mean that the contacted composition flows naturally down the hard surface or vibrations that are not intended for cleaning are transmitted to the hard surface. After leaving it for a while, it is usually rinsed with water. When rinsing, external force (physical force) may be applied with hands, or simply rinsed with running water.

[0079] In the cleaning method of the present invention, a mixture of foam formed from the detergent composition of the present invention using a foam-forming means and liquid is applied to a target surface at a concentration of preferably 0.0001 g / cm from the viewpoint of cleaning performance for lipid / protein complex soils. 2 More preferably, 0.0005 g / cm 2 More preferably, 0.0007 g / cm 2 More preferably, 0.001 g / cm 2 or more, and preferably 1 g / cm2 or less, more preferably 0.2 g / cm 2 More preferably, 0.1 g / cm or less 2 More preferably, 0.05 g / cm or less 2 It is preferable to contact, further apply or spray in the following ratio.

[0080] In the cleaning method of the present invention, a mixture of foam formed from the detergent composition of the present invention using a foam-forming means and liquid is brought into contact with a target surface and then left to stand for preferably 1 second or more, more preferably 10 seconds or more, even more preferably 20 seconds or more, still more preferably 30 seconds or more, and preferably 10 minutes or less, more preferably 5 minutes or less, even more preferably 3 minutes or less, and still more preferably 1 minute or less, from the viewpoint of cleaning performance for lipid / protein complex soils. In this case, the time when the composition first comes into contact with the target surface may be considered the start of leaving. The temperature during storage may be room temperature, for example, 10°C or higher and 30°C or lower.

[0081] The method for contacting the mixture of foam formed from the detergent composition of the present invention using a foam-forming means and liquid on the target surface is preferably spraying or coating, more preferably spraying. Specifically, a spray means can be used as the foam-forming means. That is, it is preferable to use a detergent article in which the detergent composition of the present invention is filled in a container equipped with a sprayer (spray container). The present invention provides a detergent article obtained by filling the detergent composition of the present invention into a spray container used under conditions that form a foam-liquid mixture that satisfies the above (1) and (2) from the detergent composition. The matters described in the method for cleaning a target surface of the present invention and the detergent composition of the present invention can be applied as appropriate to the detergent article of the present invention.

[0082] Examples of spray means include manual sprayers that do not use a propellant, such as trigger sprayers and pump sprayers, and aerosols that use a propellant. The spray means is preferably a trigger-type sprayer having a foam-forming mechanism that can spray or apply the detergent composition of the present invention in the form of a mixture of foam and liquid. The trigger-type sprayer having a foam-forming mechanism is preferably a direct pressure type or a pressure-accumulation type, and more preferably a pressure-accumulation type. Any commercially available spray means can be used as long as it can be used under conditions that allow the detergent composition of the present invention to form a foam-liquid mixture that satisfies the above (1) and (2).

[0083] When a trigger-type sprayer equipped with a foam-forming mechanism is used, the detergent composition of the present invention is sprayed in an amount of preferably 0.1 mL or more, more preferably 0.3 mL or more, even more preferably 0.5 mL or more, and preferably 5 mL or less, more preferably 4 mL or less, and even more preferably 3 mL or less in one operation, from the viewpoint of cleaning performance for lipid / protein complex soils. That is, in one operation, from the viewpoint of cleaning performance for lipid / protein complex soils, the detergent composition of the present invention is sprayed in an amount of preferably 0.1 g or more, more preferably 0.3 g or more, even more preferably 0.5 g or more, and preferably 5 g or less, more preferably 4 g or less, even more preferably 3 g or less.

[0084] The target surface of the cleaning method of the present invention is preferably a hard surface. Examples of hard surfaces include bathrooms, bathtubs, washbasins, tiles, restrooms, sinks, mirrors, kitchen sinks, countertops, and areas around waterworks. The cleaning method of the present invention is suitable for cleaning hard surfaces, particularly hard surfaces in bathrooms. Here, the term "bathroom" refers not only to bathrooms but also to other items with hard surfaces present in the bathroom, such as bathtubs and washbasins.

[0085] The hard surface materials targeted by the cleaning method of the present invention are suitable for use with hard surfaces having a contact angle with water of 30° or more, preferably 40° or more, and 120° or less, preferably 110° or less. Hard surface materials having a contact angle with water in the above range are not particularly limited, but include one or more materials selected from polyester resin, acrylic resin, fiber reinforced plastic (FRP) resin, acrylonitrile-butadiene-styrene copolymer (ABS) synthetic resin, polypropylene (PP) resin, polycarbonate (PC) resin, stainless steel (SUS), aluminum, hard polyvinyl chloride (hard PVC) resin, soft polyvinyl chloride (soft PVC) resin, polyethylene terephthalate (PET) resin, and aluminum. [Example]

[0086] The cleaning compositions shown in Tables 1 and 2 were prepared using the ingredients listed below, and evaluated for the following items. The results are shown in Tables 1 and 2. To prepare the cleaning compositions in Tables 1 and 2, ingredients (a) to (e) were added in the amounts shown in the tables and dissolved at room temperature (25°C). After blending, the pH was adjusted to the values shown in Tables 1 and 2 using sodium hydroxide and / or hydrochloric acid. The pH was measured using a glass electrode method. The mass percentages of the ingredients in Tables 1 and 2 are all values based on the active ingredient. The amount of ingredient (b1) in Tables 1 and 2 is expressed in ppm.

[0087] <Composition ingredients> (a) Ingredients Emal 2F-HP: Sodium lauryl sulfate, (a1) ingredient, manufactured by Kao Corporation Quaternary ammonium salt: a mixture of dimethyldecylbenzylammonium chloride and dimethyldodecylbenzylammonium chloride (mass ratio 90 / 10) Amphitol 20AB: Lauryl amide propyl betaine, ingredient (a2), manufactured by Kao Corporation Amphitol 20HD: Lauryl hydroxysulfobetaine, (a2) ingredient, manufactured by Kao Corporation Amphitol 20N: Lauryl dimethylamine oxide, component (a2), manufactured by Kao Corporation Emulgen 109P: Polyoxyethylene lauryl ether, (a3) ingredient, manufactured by Kao Corporation

[0088] (b) Component DOWSIL DK Q1-1247 Antifoam: A mixture of dimethylsiloxane / silica reaction products and other additives, component (b1), manufactured by Dow Chemical Japan Co., Ltd. DOWSIL AC8066: A mixture of dimethylsiloxane / silica reaction product and treated amorphous silica, component (b1), manufactured by Dow Chemical Japan Co., Ltd. DOWSIL 1315 Antifoam Concentrate: Reaction product of dimethylsiloxane and silica, component (b1), manufactured by Dow Chemical Japan Co., Ltd. KF-640: Polyether-modified silicone oil, component (b1), manufactured by Shin-Etsu Chemical Co., Ltd. Ethyl octanoate: carbon number 10, δ 17.3, (b2) component, manufactured by Tokyo Chemical Industry Co., Ltd. Isopropyl myristate: carbon number 17, δ 17.0, (b2) component, manufactured by Tokyo Chemical Industry Co., Ltd. Isobutyl acetate, carbon number 6, delta 17.7, (b2) component, manufactured by Tokyo Chemical Industry Co., Ltd. Ethyl hexanoate: carbon number 8, delta 17.5, (b2) component, manufactured by Tokyo Chemical Industry Co., Ltd. Diisobutyl adipate: carbon number 16, delta 18.2, (b2) component, manufactured by Tokyo Chemical Industry Co., Ltd. Ethyl oleate: carbon number 20, delta 18.1, (b2) component, manufactured by Tokyo Chemical Industry Co., Ltd. Octane: carbon number 8, δ 15.6, (b2) component, manufactured by Fujifilm Wako Pure Chemical Industries, Ltd. Limonene: carbon number 10, δ 17.4, (b2) component, manufactured by Fujifilm Wako Pure Chemical Industries, Ltd. 1-Dodecanol: carbon number: 12, δ19.2, (b2) component, manufactured by Kao Corporation

[0089] (c) Component EDTA-4Na: Sodium ethylenediaminetetraacetate (d) Ingredients BDG: Diethylene glycol monobutyl ether, manufactured by Nippon Nyukazai Co., Ltd. (e) Component Monoethanolamine

[0090] (1) Preparation of spray The detergent compositions shown in Tables 1 and 2 were filled into spray containers A to H below, which are trigger-type sprayers equipped with a foam-forming mechanism, to prepare sprays. A: Magiclean Bath Foaming Spray (Regular), Lot. K0412670, manufactured by Kao Corporation B: Flare Fragrance Scented Styling Mist, Lot. W0263170, Kao Corporation C: Bath Lux Spray, Lot. 161205B2B, manufactured by Lion Corporation D: Look Plus Bathtub Cleansing, Lot. 200827C11A, manufactured by Lion Corporation E: Ultra Hard Cleaner for Bath, Lot. 2102091, manufactured by Rinrei Co., Ltd. F: Scrubbing Bubbles Bath Free, Lot. BW241D, Johnson & Johnson G: Top Value Bath Foam Spray, Lot. 201904179, AEON Co., Ltd. H: Style Care Clothing Mist, Lot. W0261050, Kao Corporation

[0091] (2) Measurement of foam specific volume The mass (g) of a 200 ml plastic graduated cylinder with an inner diameter of 3.7 cm was measured using a double-digit balance (a). The trigger of each sprayer was pulled 10 times to dispense the cleaning composition shown in Tables 1 and 2 into the 200 ml graduated cylinder in the form of foam. 20 seconds after the spray, the mass (g) of the 200 ml graduated cylinder and the mixture of foam and liquid were measured using a double-digit balance (b), and the volume (ml) of the mixture of foam and liquid in the cylinder was measured (c). The specific foam volume of the mixture of foam and liquid was calculated using the following formula. The measurement of the specific foam volume was carried out in an environmentally controlled room maintained at 20°C. The results are shown in Tables 1 and 2. Foam specific volume (ml / g) of foam-liquid mixture = (c) / {(b)-(a)}

[0092] (3) Measurement of the volume ratio of the foam phase to the liquid phase (foam phase / liquid phase) The cleaning compositions shown in Tables 1 and 2 were sprayed from each sprayer into a 200 ml plastic measuring cylinder with an inner diameter of 3.7 cm by pulling the trigger 10 times to produce a foam-like spray. 20 seconds after spraying, the volumes (ml) of the foam and liquid phases that separated in the measuring cylinder were measured, and the volume ratio of the foam to liquid phases (foam / liquid) (ml / ml) was calculated. The volume ratio of the foam to liquid phases (foam / liquid) was measured in an environmentally controlled room maintained at 20°C. The results are shown in Tables 1 and 2.

[0093] (4) Coverage measurement Each sprayer dispensed 1 g of the cleaning compositions shown in Tables 1 and 2 onto a 40 cm width of the bathtub side, at a distance of 20 cm from the side. Twenty seconds after dispensing, the foam that had spread onto the side and the liquid attached were transferred to two locations on 2.5 cm x 15 cm water-sensitive paper (13 cm from each end of the 40 cm width). The images were scanned using a copier and binarized using ImageJ. The ratio of the area covered by the foam and liquid was calculated, which was taken as the coverage rate. The average coverage rate of the two transfer locations was calculated, and the results are shown in Tables 1 and 2.

[0094] (5) Evaluation of cleaning performance for lipid / protein complex soils Several PVC plates (manufactured by Engineering Test Services, Inc., dimensions: 80mm x 210mm x 1mm) were fixed to the bottom of a bathtub filled with water at 40°C. Four men took turns bathing (10 minutes per person), and after each bath, the PVC plates with sebum (complex lipid / protein soiling) attached were collected and used for cleaning evaluation. Approximately 1g of the detergent composition shown in Tables 1 and 2 was sprayed onto the soiled area of the PVC plate from each sprayer. After leaving the plate at 25°C for 20 seconds, the plate was rinsed with water, and cleaning performance was evaluated by touch at five randomly selected locations on the PVC plate according to the following criteria, with the average score calculated. The results are shown in Tables 1 and 2. 5: No residual dirt is felt. 4: There is some residual dirt. 3: There is a slight residue of dirt. 2: There is residual dirt. 1: I feel like the dirt isn't coming off.

[0095]

Table 1

[0096]

Table 2

Claims

1. The composition contains (a) a surfactant [hereinafter referred to as component (a)] and (b) a foam quality regulator [hereinafter referred to as component (b)], wherein the component (a) is (a1) an anionic surfactant, (a2) one or more amphoteric surfactants selected from carbobetaine and amine oxide, and (a4) one or more cationic surfactants selected from the group consisting of (b1) anionic surfactants, (b2) a silicone-based antifoaming agent (hereinafter referred to as component (b1)) containing unmodified silicone oil as a main component and further containing silica, and (b2) an ester compound having 6 to 24 carbon atoms, having a solubility parameter δ of 17.0 to 18.1, and containing a monovalent fatty acid having 2 to 18 carbon atoms and a 2-carbon ester compound having 2-carbon ester compound. a cleaning method for a hard surface of a bathroom, the method comprising contacting a mixture of foam and a liquid formed by a foam-forming means from a cleaning agent composition in which the cleaning agent composition is one or more selected from the group consisting of ester compounds with an alcohol of from 1 to 4 (hereinafter referred to as component (b2)), wherein when the component (b1) alone is contained as the component (b1), the content of the component (b1) is 3 ppm to 75 ppm, when the component (b2) alone is contained, the content of the component (b2) is 0.1 mass % to 2 mass %, and when the component (b1) and the component (b2) together are contained, the content of the component (b1) is 1 ppm to 75 ppm and the content of the component (b2) is 0.1 mass % to 2 mass %, A method for cleaning hard surfaces in a bathroom, comprising using the foam-forming means under conditions for forming a mixture of foam and liquid from the cleaning agent composition that satisfies the following (1) and (2): (1) A foam specific volume of 2.5 ml / g or more and 10 ml / g or less 20 seconds after foam formation (2) The volume ratio of the foam phase to the liquid phase (foam phase / liquid phase) 20 seconds after foam formation is 3 ml / ml or more and 50 ml / ml or less.

2. 2. The method for cleaning hard surfaces in a bathroom according to claim 1, wherein component (b2) is one or more selected from isobutyl acetate, ethyl hexanoate, isobutyl isobutyrate, ethyl octanoate, isopropyl myristate, and ethyl oleate.

3. 3. The method for cleaning a hard surface in a bathroom according to claim 1 or 2, wherein the cleaning composition contains 0.1% by mass or more and 20% by mass or less of component (a).

4. The method for cleaning a hard surface of a bathroom according to any one of claims 1 to 3, wherein the cleaning agent composition further contains (d) a glycol-based solvent.

5. The foam and liquid mixture is added to a density of 0.0001 g / cm ２ 1g / cm or more ２ 5. The method for cleaning hard surfaces in a bathroom according to claim 1, wherein the following ratio is applied to the hard surfaces in the bathroom:

6. The method for cleaning a hard surface of a bathroom according to any one of claims 1 to 5, wherein the mixture of foam and liquid is brought into contact with the hard surface of the bathroom, left to stand without applying any external force, and then rinsed with water.

7. The method for cleaning hard surfaces in a bathroom according to any one of claims 1 to 6, wherein the foam forming means is a trigger-type sprayer having a foam forming mechanism.

8. 8. The method for cleaning bathroom hard surfaces according to claim 7, wherein the trigger sprayer is a pressure-accumulation sprayer.

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