Cleaning agent composition for hard surfaces

Abstract

This invention provides a cleaning agent composition for hard surfaces that exhibits excellent cleaning power against both soap scum and limescale. [Solution] A hard surface cleaning agent composition containing a surfactant, a chelating agent, and water, wherein the surfactant contains (a) one or more surfactants selected from cationic surfactants and amine oxide-type surfactants [hereinafter referred to as component (a)] and (b) polyoxyalkylene monoalkyl or alkenyl ether [hereinafter referred to as component (b)], the ratio of the total content of component (a) and component (b) to the total content of surfactants is 50% by mass or more, and the chelating agent contains (c) one or more chelating agents selected from phosphonic acid-type chelating agents and phosphate-type chelating agents, and the pH at 25°C is 5.5 or higher and 12 or lower. A cleaning agent composition for hard surfaces.

Description

[Technical Field]

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

[0002] Our living environment is filled with various hard surfaces made of materials such as tiles, plastics, and metals, and these hard surfaces are exposed to environments where various types of dirt adhere to them in daily life. In particular, hard surfaces used in bathrooms and kitchens are surfaces that people come into contact with on a daily basis, so a lot of dirt tends to remain and accumulate, and furthermore, it is difficult to clean and remove. Generally, bathroom cleaning agents used in bathrooms, such as bathtubs, bathroom walls and floors, use cleaning agents containing surfactants, solvents, and metal ion chelating agents to remove metal soaps, especially calcium salts of fatty acids. In addition, in bathrooms and kitchens, silicic acid contained in water polymerizes and accumulates on hard surfaces, depositing in a scale-like pattern and becoming limescale. This limescale is also known to be a very difficult type of dirt to remove.

[0003] Patent Document 1 describes a bathroom cleaning agent composition containing at least a surfactant, a chelating agent, a polymer compound, a solvent, and a fragrance. Patent Document 2 describes a neutral liquid detergent composition containing 0.01 to 2% by weight of a surfactant, 3 to 20% by weight of a lower alcohol, and 0.3 to 5% by weight of a chelating agent, and further neutralized by an alkaline agent. Patent Document 3 describes a liquid detergent product comprising a liquid detergent composition stored in a foam dispensing container, wherein the liquid detergent composition contains (A) 0.1 to 5% by mass of at least one surfactant selected from amphoteric surfactants and semipolar surfactants, (B) 1.5 to 5% by mass of fatty acid (salt), (C) 0.1 to 10% by mass of a non-soap-based anionic surfactant, (D) a chelating agent, and (E) a water-soluble solvent, wherein the mass ratio of component (A) to component (B) (A / B) is 0.1 to 0.9, and the mass ratio of component (B) to the sum of components (A) to (C) (B / [A+B+C]) is 0.15 to 0.4.

[0004] Patent Document 4 describes a liquid cleaning agent composition for hard surfaces containing (a) 0.2% to 10% by mass of one or more chelating agents selected from phosphonic acid-based chelating agents and phosphate-based chelating agents, (b) 0% to 10% by mass of chelating agents other than (a), and (c) a surfactant and water, wherein the viscosity at 25°C is greater than 6 mPa·s and 1000 mPa·s or less, and is used for cleaning by contacting the hard surface and leaving it for 1 minute or more. Patent Document 5 describes a bathroom cleaning agent composition containing predetermined amounts of a cationic surfactant, a nonionic surfactant, and a water-soluble solvent. Patent Document 6 describes a liquid cleaning agent composition for kitchen use that contains (a) 0.01 to 10% by weight of a cationic surfactant, (b) 1 to 20% by weight of a metal chelating agent, (c) 0.5 to 10% by weight of a water-soluble solvent, and (d) 0.01 to 3% by weight of a thickening polysaccharide, and has a pH of 6 to 8. [Prior art documents] [Patent Documents]

[0005] [Patent Document 1] Japanese Patent Publication No. 2003-183698 [Patent Document 2] Japanese Patent Publication No. 2000-129292 [Patent Document 3] Japanese Patent Publication No. 2012-131951

Patent Document 4

Patent Document 5

Patent Document 6

Summary of the Invention

Problems to be Solved by the Invention

[0006] The present invention provides a cleaning agent composition for hard surfaces that exhibits excellent detergency against both soap scum stains and scale stains.

Means for Solving the Problems

[0007] The present invention is a cleaning agent composition for hard surfaces containing a surfactant, a sequestering agent, and water, where as the surfactant, it contains (a) one or more surfactants selected from a cationic surfactant [hereinafter referred to as component (a1)] and an amine oxide type surfactant [hereinafter referred to as component (a2)] [hereinafter referred to as component (a)], and (b) a polyoxyalkylene monoalkyl or alkenyl ether [hereinafter referred to as component (b)], the ratio of the total content of component (a) and component (b) to the total content of the surfactant is 50% by mass or more, as the sequestering agent, it contains (c) one or more sequestering agents selected from a phosphonic acid type sequestering agent and a phosphoric acid type sequestering agent [hereinafter referred to as component (c)], the pH at 25°C is 5.5 or more and 12 or less, relating to a cleaning agent composition for hard surfaces.

[0008] Also, the present invention relates to a method for cleaning a hard surface, which comprises bringing the cleaning agent composition for hard surfaces of the present invention into contact with the hard surface for a predetermined time, and then rinsing the hard surface with water.

Effects of the Invention

[0009] The present invention provides a cleaning agent composition for hard surfaces that exhibits excellent cleaning power against both soap scum and limescale. [Modes for carrying out the invention]

[0010] In this invention, by combining two surfactants, component (a) and component (b), with a metal sequestering agent component (c), and by using them in such a specific ratio that the total content of components (a) and (b) in the surfactant is equal to a specific amount, both soap scum and limescale can be removed more effectively. Although the details of the mechanism of action of this invention are unknown, it is presumed that component (a) weakens the bond between Ca and fatty acid ions in the soap scum, the metal sequestering agent component (c) acts to extract Ca, and component (b) solubilizes the fatty acid ions. It is also presumed that the metal sequestering agent component (c) acts on the SiO2 in the limescale, solubilizing it.

[0011] [Cleaning agent composition for hard surfaces] [Surfactants] The cleaning agent composition for hard surfaces of the present invention contains a surfactant, and the surfactants include the following components (a) and (b).

[0012] <(a) Components> (a) The component is one or more surfactants selected from (a1) cationic surfactants and (a2) amine oxide type surfactants.

[0013] Component (a1) is a cationic surfactant. A mono-long-chain alkyl type quaternary ammonium salt is preferred as the cationic surfactant. Component (a1) is preferably a cationic surfactant having antibacterial properties. The cationic surfactant is represented by the following general formula (a1-1): A cationic surfactant selected from the compounds represented by the general formula (a1-2) is preferred, and a cationic surfactant selected from the compounds represented by the general formula (a1-2) is more preferred.

[0014] [ka]

[0015] [In the formula, R 1a represents a long-chain alkyl group, long-chain alkenyl group or long-chain hydroxyalkyl group having 8 to 16 carbon atoms, and R 2a , R 3a and R 4a are the same or different and each represents an alkyl group having 1 to 3 carbon atoms, a hydroxyalkyl group having 1 to 3 carbon atoms or a polyoxyethylene group having an average addition mole number of 10 or less. Y - represents a halogen atom, or an anion residue of a sulfonic acid ester or sulfuric acid ester having 1 to 5 carbon atoms. ]] In general formula (a1-1), R 1a is preferably a linear alkyl group having 8 or more, and preferably 12 or less, more preferably 10 or less carbon atoms. R 2a , R 3a , R 4a are each preferably a methyl group or an ethyl group, and more preferably a methyl group. Y - is a halogen ion, and further preferably a chloride ion (Cl - ). ]]

[0016] [Chemical formula]

[0017] [In the formula, R 5a represents a long-chain alkyl group, long-chain alkenyl group or long-chain hydroxyalkyl group having 8 to 16 carbon atoms, and R 6a , R 7a are the same or different and each represents an alkyl group having 1 to 3 carbon atoms, a hydroxyalkyl group having 1 to 3 carbon atoms or a polyoxyethylene group having an average addition mole number of 10 or less. R 8a represents an alkylene group having 1 to 3 carbon atoms. Z - represents a halogen atom, or an anion residue of a sulfonic acid ester or sulfuric acid ester having 1 to 5 carbon atoms. ]] In general formula (a1-2), R 5aThe linear alkyl group has 8 or more carbon atoms, preferably 14 or fewer, more preferably 12 or fewer, and more preferably 10 or fewer carbon atoms. 6a , R 7a Each of these preferably has a methyl group, R 8a A methylene group is preferred. - These are halogen ions, and furthermore, chloride ions (Cl - ) is preferable.

[0018] Component (a2) is an amine oxide type surfactant. The compound of the following general formula (a2-1) is preferred as the amine oxide type surfactant.

[0019] [ka]

[0020] [In the formula, R 9a R represents a hydrocarbon group having 8 to 22 carbon atoms, preferably an alkyl group or alkenyl group, more preferably an alkyl group. 10a and R 11a represents an alkyl group having 1 to 3 carbon atoms, either identical or different. D represents a -NHC(=O)- group or a -C(=O)NH- group, and 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.

[0021] In the above general formula (a2-1), R 9a From the viewpoint of cleaning power against solid fats, it 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 with 12 carbon atoms. 10a , R 11a From the viewpoint of cleaning power, each of these is preferably a methyl group having 1 carbon atom.

[0022] <(b) Component> (b) The component is a polyoxyalkylene monoalkyl or alkenyl ether. In polyoxyalkylene monoalkyl or alkenyl ethers, the number of carbon atoms in the alkyl or alkenyl group is preferably 6 or more, more preferably 8 or more, even more preferably 10 or more, and even more preferably 12 or more, and from the same viewpoint, preferably 22 or less, more preferably 18 or less, even more preferably 16 or less, and even more preferably 14 or less. The alkyl or alkenyl group may be linear or branched. Furthermore, among the carbon atoms of the alkyl or alkenyl group, the carbon atom bonded to the polyoxyalkylene group may be a primary carbon atom, a secondary carbon atom, or a tertiary carbon atom, preferably a primary carbon atom or a secondary carbon atom.

[0023] From the viewpoint of cleaning power, the average number of moles of alkylene oxide added is preferably greater than 0, more preferably 1 or more, even more preferably 3 or more, and even more preferably 5 or more. Similarly, from the same viewpoint, it is preferably 50 or less, more preferably 30 or less, even more preferably 20 or less, and even more preferably 15 or less.

[0024] From the viewpoint of cleaning power, the alkylene oxide is preferably one or more selected from ethylene oxide, propylene oxide, and butylene oxide, and more preferably one or more selected from ethylene oxide and propylene oxide.

[0025] Preferred examples of polyoxyalkylene monoalkyl or alkenyl ethers include nonionic surfactants represented by the following general formula (b1). R 11 O[(C2H4O) l (C3H6O) m ]H (b1) [In the formula, R 11represents an alkyl or alkenyl group having 6 to 22 carbon atoms. l and m represent the average number of moles added, where l is a number between 0 and 30, and m is a number between 0 and 30; l and m cannot be 0 simultaneously. " / " indicates that the ethylene oxy group (C2H4O) and propylene oxy group (C3H6O) may be added randomly or in a block, regardless of order.

[0026] R in the above general formula (b1) 11 The number of carbon atoms is preferably 8 or more, more preferably 10 or more, even more preferably 12 or more, and from the same viewpoint, preferably 18 or less, more preferably 17 or less, even more preferably 16 or less, and even more preferably 14 or less. 11 It may be a straight chain or a branched chain. Also, R 11 Of the carbon atoms, the carbon atoms bonded to the oxygen atom may be primary carbon atoms, secondary carbon atoms, or tertiary carbon atoms, preferably primary carbon atoms or secondary carbon atoms. From the viewpoint of cleaning power, l is preferably 3 or more, more preferably 4 or more, and even more preferably 5 or more, and from the viewpoint of solubility, it is preferably 25 or less, more preferably 23 or less, and even more preferably 20 or less. m may be 0. If m is 1 or greater, from the viewpoint of cleaning power, it may be, for example, 3 or greater, more preferably 4 or greater, and even more preferably 5 or greater, and from the viewpoint of solubility, it may be, for example, 25 or less, more preferably 23 or less, and even more preferably 20 or less.

[0027] [Metal sequestering agent] The cleaning agent composition for hard surfaces of the present invention contains a chelating agent, and the chelating agent contains the following component (c).

[0028] <(c) component> (c) The component is one or more metal chelating agents selected from phosphonic acid type metal chelating agents and phosphate type metal chelating agents.

[0029] Examples of phosphonic acid-type chelating agents include one or more selected from phosphonic acids and their salts, such as ethane-1,1-diphosphonic acid, ethane-1,1,2-triphosphonic acid, ethane-1-hydroxy-1,1-diphosphonic acid, ethane-hydroxy-1,1,2-triphosphonic acid, ethane-1,2-dicarboxy-1,2-diphosphonic acid, methanehydroxyphosphonic acid, aminopoly(methylenephosphonic acid), polyethylenepolyaminepoly(methylenephosphonic acid), etc. Salts include alkali metal salts such as sodium and potassium, ammonium salts, or alkanolamine salts such as monoethanolamine and triethanolamine. Preferably, hydroxyphosphonic acids such as ethane-1-hydroxy-1,1-diphosphonic acid and their salts are used.

[0030] Examples of phosphate-type chelating agents include one or more selected from orthophosphate, pyrophosphate, tripolyphosphate, tetrapolyphosphate, hexametaphosphate, and salts thereof.

[0031] (c) From the viewpoint of cleaning power, component (c) is preferably a phosphonic acid type metal chelating agent, more preferably one or more selected from hydroxyphosphonic acid and its salts, and even more preferably ethane-1-hydroxy-1,1-diphosphonic acid or its salt.

[0032] [Composition, other ingredients, etc.] The present invention relates to a hard surface cleaning agent composition containing a surfactant and a chelating agent, wherein the composition contains component (a) and component (b) as surfactants, and component (c) as a chelating agent, and the ratio of the total content of component (a) and component (b) to the total content of surfactants is 50% by mass or more.

[0033] From the viewpoint of cleaning power, the cleaning agent composition for hard surfaces of the present invention preferably contains component (a) in an amount of 0.1% by mass or more, more preferably 0.3% by mass or more, and preferably 5% by mass or less, more preferably 4% by mass or less.

[0034] From the viewpoint of cleaning power, the cleaning agent composition for hard surfaces of the present invention contains, when component (a1) is used, preferably 0.1% by mass or more, more preferably 0.3% by mass or more, preferably 5% by mass or less, more preferably 4% by mass or less, and even more preferably 3% by mass of component (a1). Furthermore, when component (a2) is used, it contains preferably 0.1% by mass or more, more preferably 0.3% by mass or more, preferably 5% by mass or less, more preferably 4% by mass or less, and even more preferably 3% by mass of component (a2).

[0035] From the viewpoint of cleaning power, the cleaning agent composition for hard surfaces of the present invention preferably contains component (b) in an amount of 0.1% by mass or more, more preferably 0.2% by mass or more, and preferably 5% by mass or less, more preferably 4% by mass or less.

[0036] From the viewpoint of cleaning power, the cleaning agent composition for hard surfaces of the present invention has a ratio of the total content of component (a) and component (b) to the total content of surfactants of 50% by mass or more, preferably 55% by mass or more, more preferably 60% by mass or more, even more preferably 70% by mass or more, even more preferably 80% by mass or more, and 100% by mass or less, preferably 95% by mass or less, and more preferably 90% by mass or less. Here, the total content of surfactants is the sum of the content of component (a), component (b), component (d) and component (e) described later, and other surfactants.

[0037] From the viewpoint of cleaning power, the cleaning agent composition for hard surfaces of the present invention has a mass ratio (a) / (b) of the content of component (a) to the content of component (b), which is preferably 0.1 or more, more preferably 0.2 or more, even more preferably 0.5 or more, and preferably 10 or less, more preferably 5 or less, and even more preferably 2 or less.

[0038] When the hard surface cleaning agent composition of the present invention contains component (a1) and component (a2), from the viewpoint of cleaning power, the mass ratio of the content of component (a1) to the content of component (a2), which is (a1) / (a2), is preferably 0.1 or more, more preferably 0.3 or more, even more preferably 0.5 or more, and preferably 10 or less, more preferably 8 or less, and even more preferably 5 or less.

[0039] The cleaning agent composition for hard surfaces of the present invention contains, from the viewpoint of cleaning power, component (c) preferably at 0.3% by mass or more, more preferably at 0.4% by mass or more, and preferably at 8% by mass or less, and more preferably at 6% by mass or less. In this invention, the amount of component (c) is calculated on an acid type basis.

[0040] From the viewpoint of cleaning power, the cleaning agent composition for hard surfaces of the present invention has a mass ratio of the content of component (c) to the total content of component (a) and component (b), which is (c) / [(a)+(b)], preferably 0.1 or more, more preferably 0.13 or more, even more preferably 0.3 or more, even more preferably 0.5 or more, preferably 10 or less, more preferably 8 or less, and even more preferably 6 or less.

[0041] The cleaning agent composition for hard surfaces of the present invention may also contain a nonionic surfactant other than component (b) as a surfactant. Examples of nonionic surfactants other than component (b) include one or more nonionic surfactants selected from glycoside-type nonionic surfactants (such as alkyl glycosides), fatty acid alkanolamides, sorbitan-based nonionic surfactants, alkyl monoglyceryl ethers, fatty acid glycerol monoesters, and sucrose fatty acid esters.

[0042] The cleaning agent composition for hard surfaces of the present invention may further contain (d) an amphoteric surfactant [hereinafter referred to as component (d)] as a surfactant. (d) The amphoteric surfactant of component (d) can be one or more amphoteric surfactants selected from sulfobetaine and carbobetine. Component (d) is preferably carbobetine. The hard surface cleaning agent composition of the present invention preferably contains carbobetine as component (d).

[0043] Examples of sulfobetaines include N-alkyl-N,N-dimethyl-N-sulfopropylammonium sulfobetaine, in which the number of carbon atoms in the alkyl group is preferably 10 or more, preferably 18 or less, and more preferably 14 or less; N-alkyl-N,N-dimethyl-N-(2-hydroxysulfopropyl)ammonium sulfobetaine, in which the number of carbon atoms in the alkyl group is preferably 10 or more, preferably 18 or less, and more preferably 14 or less; N-alkanoylaminopropyl-N,N-dimethyl-N-sulfopropylammonium sulfobetaine, in which the number of carbon atoms in the alkanoyl group is preferably 10 or more, preferably 18 or less, and more preferably 14 or less; and N-alkanoylaminopropyl-N,N-dimethyl-N-(2-hydroxysulfopropyl)ammonium sulfobetaine, in which the number of carbon atoms in the alkanoyl group is preferably 10 or more, preferably 18 or less, and more preferably 14 or less.

[0044] Examples of carbobetaines include N-alkyl-N,N-dimethyl-N-carboxymethylammonium betaine, which has preferably 10 or more carbon atoms in the alkyl group, preferably 18 or less, and more preferably 14 or less, and is represented by the following general formula (d1). From the viewpoint of cleaning power, the compound represented by the following general formula (d1) is preferred.

[0045] [ka]

[0046] [In the formula, R 1d R represents an alkyl or alkenyl group having 7 to 21 carbon atoms, 2d and R 3d Each of these independently represents an alkyl group having 1 to 3 carbon atoms.

[0047] In general formula (d1), R 1d The alkyl or alkenyl group is preferably 9 or more, more preferably 11 or more, and preferably 15 or less, more preferably 13 or less, with nonyl, decyl, undecyl, dodecyl, and tridecyl groups being preferred. In general formula (d1), R 2d and R 3d Each of these is independently preferably a methyl group.

[0048] The hard surface cleaning agent composition of the present invention contains component (d) in an amount of preferably 0.3% by mass or more, more preferably 0.5% by mass or more, even more preferably 0.7% by mass or more, and preferably 5% by mass or less, more preferably 3% by mass or less, and even more preferably 2% by mass or less, from the viewpoint of cleaning power. This proportion may be 0% by mass, that is, the hard surface cleaning agent composition of the present invention may not contain component (d).

[0049] The hard surface cleaning agent composition of the present invention may contain (e) anionic surfactant [hereinafter referred to as component (e)], but a lower content is preferable from the viewpoint of cleaning power. In the present invention, the content of component (e) is preferably 50% by mass or less, more preferably 30% by mass or less, and even more preferably 20% by mass or less, relative to the content of component (a). This ratio is 0% by mass, that is, the hard surface cleaning agent composition of the present invention does not need to contain component (e).

[0050] Here, the anionic surfactant of component (e) is one that is commonly used by those skilled in the art, and examples include anionic surfactants having a hydrocarbon group with 7 to 22 carbon atoms and a sulfate ester group, a phosphate ester group, a phosphonic acid group, a sulfonic acid group, or a carboxyl group. Specifically, these include alkylbenzene sulfonates, alkanesulfonates, alkyl sulfate esters, polyoxyethylene alkyl ether sulfates, α-olefin sulfonates, α-sulfo fatty acid methyl esters, polyoxyethylene alkyl (or alkenyl) ether carboxylates, polyoxyethylene amide alkyl (or alkenyl) ether carboxylates, fatty acid salts, alkyl phosphates, polyoxyethylene alkyl ether phosphates, etc. Salts include alkali metal salts such as sodium and potassium, inorganic salts such as ammonium salts and magnesium salts, and organic salts such as monoethanolammonium, diethanolammonium, and triethanolammonium.

[0051] In the hard surface cleaning agent composition of the present invention, the content of component (e) is preferably 3% by mass or less, more preferably 2% by mass or less, even more preferably 1% by mass or less, even more preferably 0.5% by mass or less, even more preferably 0.1% by mass or less, and preferably 0% by mass or more, or may be 0% by mass. In this invention, the amount of anionic surfactant is calculated on an acidic basis.

[0052] The hard surface cleaning agent composition of the present invention preferably contains a surfactant of 0.05% by mass or more, more preferably 0.1% by mass or more, and preferably 10% by mass or less, and more preferably 5% by mass or less. The surfactant content may be the sum of the contents of component (a), component (b), component (d), component (e), and other surfactants not listed therein.

[0053] The hard surface cleaning agent composition of the present invention may further contain (f) a water-soluble solvent [hereinafter referred to as component (f)]. The water-soluble solvent is preferably a water-soluble organic solvent having 2 or more carbon atoms, more preferably 3 or more carbon atoms, and more preferably 10 or fewer carbon atoms, and more preferably 8 or fewer carbon atoms. Specific examples include one or more water-soluble organic solvents selected from ethanol, isopropyl alcohol, ethylene glycol, propylene glycol, diethylene glycol, dipropylene glycol, glycerin, isoprene glycol, propylene glycol monomethyl ether, propylene glycol monoethyl ether, 3-methyl-3-methoxybutanol, benzyl alcohol, phenoxyethanol, phenyl glycol, phenoxyisopropanol, butyl diglycol (diethylene glycol monobutyl ether), dibutylenedi glycol, and benzyl alcohol, which are more preferable. Among these, one or more water-soluble organic solvents selected from benzyl alcohol, butyl diglycol, ethanol, and propylene glycol are even more preferable. Here, a water-soluble organic solvent refers to a solvent with an octanol / water partition coefficient (LogPow) of 3.5 or less.

[0054] If the hard surface cleaning agent composition of the present invention contains component (f), the composition preferably contains component (f) in an amount of 0.2% by mass or more, more preferably 0.5% by mass or more, and preferably 8% by mass or less, more preferably 5% by mass or less.

[0055] The cleaning agent composition for hard surfaces of the present invention may contain (g) a thickening agent [hereinafter referred to as (g) component] from the viewpoint of enhancing cleaning power on hard surfaces that are not prone to accumulation, such as vertical surfaces. The thickening agent is preferably one or more selected from smectite-type clay minerals, natural polymers, and synthetic polymers; more preferably one or more selected from nonionic polysaccharides, natural polymers, and synthetic polymers; and even more preferably one or more selected from nonionic polysaccharides. Specifically, hydroxyethylcellulose, xanthan gum, and polyvinylpyrrolid One or more selected from the following are preferred, and hydroxyethylcellulose is more preferred.

[0056] If the hard surface cleaning agent composition of the present invention contains component (g), the composition preferably contains component (g) in an amount of 0.05% by mass or more, more preferably 0.1% by mass or more, and preferably 3% by mass or less, more preferably 2% by mass or less.

[0057] The hard surface cleaning agent composition of the present invention has a pH at 25°C of 5.5 or higher, preferably 6.0 or higher, more preferably 6.5 or higher, and 12 or lower, preferably 11 or lower, more preferably 10 or lower, from the viewpoint of cleaning power.

[0058] The cleaning agent composition for hard surfaces of the present invention contains water. The cleaning agent composition for hard surfaces of the present invention preferably contains 80% by mass or more, more preferably 85% by mass or more, and preferably 95% by mass or less, and more preferably 93% by mass or less, of water.

[0059] The cleaning agent composition for hard surfaces of the present invention preferably has a viscosity of 10 mPa·s or more and 450 mPa·s or less at 25°C. This viscosity was measured using a B-type rotational viscometer, with rotor No. 1, at 60 rpm, and after 1 minute. Rotor No. 2 was used as needed to bring the viscosity within the measurement range.

[0060] The cleaning agent composition for hard surfaces of the present invention may optionally contain fragrances, dyes, preservatives, antioxidants, etc., in order to increase the added value of the product.

[0061] The hard surface targeted by the cleaning agent composition for hard surfaces of the present invention may be a hard surface such as tile, glass, stainless steel, plastic, or ceramic. The hard surface cleaning agent composition of the present invention is suitably used for cleaning hard surfaces such as bathrooms, bathtubs, washbasins, tiles, powder rooms, washstands, mirrors, kitchen sinks, countertops, and water fixtures. The hard surface cleaning agent composition of the present invention is suitably used for bathrooms. Here, "for bathrooms" refers not only to the bathroom itself, but also to other hard surface articles present in the bathroom, such as bathtubs and washbasins. The present invention is preferably intended for hard surfaces to which limescale and soap scum stains are attached.

[0062] [Method for cleaning hard surfaces] The present invention provides a method for cleaning hard surfaces, comprising contacting the hard surface cleaning agent composition of the present invention with the hard surface for a predetermined time, and then rinsing the hard surface with water. Furthermore, the present invention provides a method for removing limescale and soap scum stains, which involves contacting the hard surface cleaning agent composition of the present invention with a hard surface for a predetermined time, and then rinsing the hard surface with water. In other words, it is a method for removing limescale and soap scum stains from a hard surface, which involves contacting the hard surface cleaning agent composition of the present invention with a hard surface to which limescale and soap scum stains are attached for a predetermined time, and then rinsing the hard surface with water. The matters described in the present invention concerning the cleaning agent composition for hard surfaces can be appropriately applied to these methods. The preferred embodiment of the composition is the same as that of the cleaning agent composition for hard surfaces of the present invention described above.

[0063] The cleaning method of the present invention specifically involves contacting the hard surface cleaning agent composition in its undiluted form with the hard surface, or contacting the hard surface cleaning agent composition in its undiluted form with the hard surface; in other words, a cleaning method in which the hard surface cleaning agent composition is contacted with the hard surface without dilution is preferred. Furthermore, a cleaning method is also mentioned in which the hard surface cleaning agent composition is contacted with a hard surface to which limescale and soap scum are attached without dilution. As for the method of contacting the hard surface, a method of applying it to the hard surface is preferred.

[0064] To contact the hard surface cleaning agent composition without dilution means not to intentionally dilute the cleaning agent composition with water or the like before contacting the hard surface. For example, if the hard surface cleaning agent composition is brought into contact with a hard surface that has water droplets or the like attached to it, or if water droplets adhere to the hard surface after the hard surface cleaning agent composition has been brought into contact with it, it can be understood that the hard surface cleaning agent composition is brought into contact with the hard surface without dilution.

[0065] In this invention, for example, the undiluted hard surface cleaning agent composition is applied to the hard surface as is, that is, without altering its composition. For example, the hard surface cleaning agent composition is brought into contact with a hard surface contaminated with limescale and soap scum without being applied to a damp cotton ball. After contact with the hard surface, the composition of the hard surface cleaning agent composition may change. That is, after contact with the hard surface, the composition of the hard surface cleaning agent composition may be diluted or concentrated.

[0066] In the cleaning method of the present invention, the hard surface cleaning agent composition may be applied directly from the bottle to the hard surface in its undiluted state. Examples of bottles include squeeze bottles.

[0067] In the present invention, a concentrated composition containing components (a), (b), and (c) of the present invention may be prepared in advance, and the concentrated composition may be diluted with water to prepare the hard surface cleaning agent composition of the present invention, which may then be brought into contact with the hard surface. That is, a method for cleaning a hard surface may also be used in which a concentrated composition containing components (a), (b), and (c) of the present invention is diluted with water to prepare the hard surface cleaning agent composition of the present invention, and the hard surface cleaning agent composition is brought into contact with the hard surface without dilution.

[0068] After contacting the hard surface cleaning agent composition of the present invention with a hard surface, the standing time is preferably 1 minute or more, preferably 2 minutes or more, more preferably 3 minutes or more, even more preferably more than 3 minutes, even more preferably 4 minutes or more, and even more preferably 5 minutes or more, from the viewpoint of cleaning power, and preferably 60 minutes or less, more preferably 30 minutes or less, even more preferably 15 minutes or less, and even more preferably 10 minutes or less, from the viewpoint of efficient cleaning. The standing temperature can be room temperature, for example, 10°C to 30°C.

[0069] Furthermore, in this invention, hard surfaces can be cleaned using a cleaning article on which the hard surface cleaning agent composition of the present invention is supported on a substrate. As an example, the present invention provides a method for cleaning hard surfaces, in which the cleaning agent composition for hard surfaces is applied to the hard surface, left for a predetermined time, and then wiped clean. For the wiping clean, it is preferable to remove the composition applied to the hard surface using a cloth, rag, nonwoven fabric, etc.

[0070] Furthermore, the hard surface cleaning agent composition of the present invention can also be impregnated into a substrate and used as a cleaning article. A cleaning article impregnated with the hard surface cleaning agent composition of the present invention is preferable from the viewpoint of ease of use in cleaning work.

[0071] The substrate used in cleaning articles impregnated with a hard surface cleaning agent composition should be flexible, capable of impregnating with the hard surface cleaning agent composition, possess sufficient strength during use, and not generate debris. It is preferable to use a substrate that can impregnate the amount of hard surface cleaning agent composition described later under no load.

[0072] Examples of such substrates include fibrous structures composed of fibrous materials, such as various types of paper, nonwoven fabrics, woven fabrics, or knitted fabrics. Examples of fibrous materials that constitute these fibrous structures include cellulose fibers, modified cellulose fibers, synthetic fibers, and mixtures of two or more of these.

[0073] Furthermore, porous structures obtained by dispersing air bubbles in a resin (for example, sponge-like structures) can also be used as the substrate.

[0074] Furthermore, a cleaning method using a cleaning article impregnated with the hard surface cleaning agent composition of the present invention to wipe a hard surface is preferable for light cleaning of hard surfaces from the viewpoint of workability of the cleaning work. The cleaning article impregnated with the hard surface cleaning agent composition may be either a substrate that has been impregnated with the cleaning agent composition in advance, or a dry substrate that has been impregnated with the hard surface cleaning agent composition immediately before use. The cleaning article impregnated with the hard surface cleaning agent composition may be used attached to a mop-like cleaning tool, or it may be used for wiping by hand.

[0075] When a hard surface cleaning agent composition is pre-impregnated, the impregnation rate of the hard surface cleaning agent composition is preferably 100% by mass or more, more preferably 150% by mass or more, preferably 1000% by mass or less, more preferably 400% by mass or less, and even more preferably 350% by mass or less, based on the mass of the substrate (i.e., the mass of the substrate in an unimpregnated (dry) state), from the viewpoint of cleaning performance. If the impregnation rate is 100% by mass or more, sufficient cleaning power can be obtained. If it is 1000% by mass or less, the amount of hard surface cleaning agent composition released onto the surface to be cleaned will be appropriate, so no dirt or dust will remain on the surface to be cleaned, and it can be used without affecting cleaning surfaces made of various materials such as wood-based materials. From the viewpoint of further improving cleaning performance, when the substrate is a sheet, the basis weight of the hard surface cleaning agent composition before impregnation should be, for example, 40 g / m², from the viewpoint of the retention of the hard surface cleaning agent composition required for cleaning a certain area, the operability of the sheet, and cost. 2 Preferably, it is 50 g / m 2 It is more preferable that the amount be greater than or equal to 200 g / m². 2 Preferably, it is 150 g / m². 2 The following is more preferable:

[0076] When using cleaning articles impregnated with the hard surface cleaning agent composition, the hard surface cleaning agent composition of the present invention may also be sprayed onto the object to be cleaned or the cleaning article. This method of use allows for cleaning a wider area.

[0077] In this invention, the hard surface cleaning agent composition of the present invention is brought into contact with the hard surface and left for a predetermined time, then washed if necessary, and then the hard surface is rinsed with water. When rinsing, external force (physical force) such as hand washing may be applied, or it may be simply rinsed with a stream of water. [Examples]

[0078] The hard surface cleaning agent compositions shown in Tables 1-5 were prepared and evaluated for the following items. The results are shown in Tables 1-5. In the tables, component (b) was treated as component (b), and the ratio of component (a) to component (b) and (c) / [(a)+(b)] in the total surfactant were calculated. Similarly, in the tables, component (c') was treated as component (c), and (c) / [(a)+(b)] was calculated. The viscosity of the compositions was measured using a B-type rotational viscometer, and the value after 1 minute at 60 rpm (25°C) is shown in the table. For low viscosity, rotor No. 1 was used, and rotor No. 2 or 3 was used as needed to bring the viscosity within the measurement range.

[0079] <Cleaning power> (1) Method for evaluating the cleaning power of soap scum stains (1-1) Creating a model of soap scum stain The cleaning power against model soap scum stains, which are a combination of soap and sebum, was evaluated. The method for preparing the model soap scum stains is as follows: Solution A was prepared by mixing 90% by mass of solid soap (Kao White) and 10% by mass of model sebum stains at 50-60°C and keeping the mixture warm. The composition of the model sebum stains was 40% by mass of linoleic acid, 20% by mass of oleic acid, 20% by mass of palmitic acid, 10% by mass of cholesterol, and 10% by mass of liquid paraffin. Solution B was prepared by keeping a calcium chloride solution with a German hardness of 10°dH warm at 20-30°C. Solution A was applied as thinly and evenly as possible to a polypropylene plate (50mm x 100mm x 2mm), air-dried at 20-30°C for 5 minutes, then applied as thinly and evenly as possible to a polypropylene plate (50mm x 100mm x 2mm), air-dried at 20-30°C for 5 minutes, and then air-dried at 20-30°C for 5 minutes. This process of applying solution A, air-drying, applying solution B, and air-drying was repeated 30-50 times to prepare the model soap scum stains.

[0080] (1-2) Soap scum cleaning power evaluation A The plate with the model soap scum stain prepared in (1-1) was placed horizontally with the stained side facing upwards. One drop (approximately 0.3 mL) of each hard surface cleaning agent composition was added to the model soap scum stain using a dropper, left for the specified time indicated in the table, and then thoroughly rinsed with deionized water. The cleaning power was then evaluated according to the following criteria. Specifically, a plate without staining, a plate with staining but before cleaning, and a plate after cleaning were photographed under identical shooting conditions such as brightness, and the grayscale of each plate was measured from the obtained images. The plate before cleaning was set to a cleaning rate of 0%, and the plate without staining was set to a cleaning rate of 100%, and the cleaning rate of the plate after cleaning was calculated. ImageJ 1.47v image processing software was used to measure the grayscale.

[0081] (1-3) Soap scum cleaning power evaluation B The plate with the model soap scum stain prepared in (1-1) was placed vertically, 1 mL of each hard surface cleaning agent composition was applied to the model soap scum stain using a dropper, left for 10 minutes, and then thoroughly rinsed with deionized water. The cleaning power was then evaluated according to the following criteria. Plates without a coating, plates with a coating but before cleaning, and plates after cleaning were photographed under identical lighting and other shooting conditions. The grayscale of each plate was measured from the resulting images. The pre-cleaning plate was set to a cleaning rate of 0%, and the uncoated plate to a cleaning rate of 100%, and the cleaning rate of the post-cleaning plate was calculated. ImageJ 1.47v image processing software was used to measure the grayscale.

[0082] (2) Method for evaluating the cleaning power of limescale stains (2-1) Creating a model of limescale stains 0.3 mL of a 300 ppm SiO2 / 300 ppm CaCl2 aqueous solution was applied as uniformly as possible to the bottom 25 mm of a glass slide (76 mm x 26 mm), dried on a hot plate heated to 140°C, and then rinsed with deionized water. This process of applying the solution and drying it on the glass slide was repeated three times to create a model of limescale contamination.

[0083] (2-2) Water stain removal power evaluation A The slide glass with the model limescale stain prepared in (2-1) was placed horizontally with the stained side facing upwards. A cotton ball (Curelet 4cm x 4cm, manufactured by Kawamoto Sangyo Co., Ltd.) cut to the size of the model limescale stain was placed on the slide glass, and 1 mL of each hard surface cleaning agent composition was dropped onto it. After letting it stand for the specified time indicated in the table, the entire surface of the slide glass was rubbed back and forth five times with light force (approximately 200 g). After that, the slide glass was thoroughly rinsed with deionized water, and the cleaning power was evaluated according to the following criteria. The specific evaluation method involved photographing slides without a coating, slides with a coating but before cleaning, and slides after cleaning under identical lighting and other shooting conditions. The grayscale of each slide was then measured from the resulting images. The pre-cleaning slide was set to a cleaning rate of 0%, and the uncoated slide to a cleaning rate of 100%, and the cleaning rate of the post-cleaning plate was calculated. ImageJ 1.47v image processing software was used to measure the grayscale.

[0084] (2-3) Water stain removal power evaluation B The slide glass with the model limescale stains prepared in (2-1) was placed vertically, and 1 mL of each hard surface cleaning agent composition was applied to the model limescale stains using a dropper. After letting it stand for 10 minutes, the area that had come into contact with each cleaning agent composition was rubbed back and forth five times with light force (approximately 200 g). After that, it was rinsed thoroughly with deionized water, and the cleaning power was evaluated according to the following criteria. Slides without a coating, slides with a coating but before cleaning, and slides after cleaning were photographed under identical lighting and other shooting conditions. The grayscale of each slide was measured from the resulting images. The pre-cleaning slide was set to a cleaning rate of 0%, and the uncoated slide to a cleaning rate of 100%, and the cleaning rate of the post-cleaning plate was calculated. ImageJ 1.47v image processing software was used to measure the grayscale.

[0085] [Table 1]

[0086] [Table 2]

[0087] [Table 3]

[0088] [Table 4]

[0089] [Table 5]

[0090] The components listed in the table are as follows. Note that the mass percentage for each component is based on the amount converted to effective content. • Polyoxyethylene (7) alkyl ether: nonionic surfactant, in general formula (b1), R11 A is an alkyl group with 12 carbon atoms, l is 7, m is 0, softanol 70H, manufactured by Nippon Shokubai Co., Ltd., ( ) is the average number of moles of oxyethylene groups added. • Polyoxyethylene (12) alkyl ether: nonionic surfactant, in general formula (b1), R 11 A is an alkyl group with 12 carbon atoms, l is 12, m is 0, a compound called Softanol 120, manufactured by Nippon Shokubai Co., Ltd. • Polyoxyethylene (3) alkyl ether: nonionic surfactant, in general formula (b1), R 11 A is an alkyl group with 12 carbon atoms, l is 3, m is 0, a compound called Softanol 33, manufactured by Nippon Shokubai Co., Ltd. • Sodium alkyl ether sulfate: Anionic surfactant, alkyl group has 12-16 carbon atoms, average number of ethylene oxide added moles is 4.0, ES-4K, manufactured by Kao Corporation. • Hydroxyethylcellulose ether: A natural polymer of nonionic polysaccharide, HEC Daicel SE850K, Daicel Finechem Co., Ltd. Xanthan gum: A natural polymer of anionic polysaccharide, manufactured by KELZAN, Sansho Co., Ltd. • Polyvinylpyrrolidone: Synthetic polymer, PVP K-90, manufactured by ISP TECHNOLOGIES, INC. • Polyalkyl glycosides: nonionic surfactants, alkyl (8-16) glucosides

Claims

1. A cleaning agent composition for hard surfaces containing a surfactant, a chelating agent, and water, The surfactant contains (a) one or more surfactants selected from cationic surfactants [hereinafter referred to as component (a1)] and amine oxide type surfactants [hereinafter referred to as component (a2)], and (b) polyoxyalkylene monoalkyl or alkenyl ether [hereinafter referred to as component (b)]. The ratio of the total content of component (a) and component (b) to the total content of surfactants is 50% by mass or more. The present invention contains one or more chelating agents selected from (c) phosphonic acid-type chelating agents and phosphate-type chelating agents [hereinafter referred to as component (c)] as a chelating agent, The pH at 25°C is between 5.5 and 12. A cleaning agent composition for hard surfaces.

2. The hard surface cleaning agent composition according to claim 1, wherein the mass ratio of the content of component (a) to the content of component (b), (a) / (b), is 0.2 or more and 10 or less.

3. The hard surface cleaning agent composition according to claim 1 or 2, wherein the mass ratio of the content of component (c) to the total content of component (a) and component (b), (c) / [(a)+(b)], is 0.1 or more and 10 or less.

4. The hard surface cleaning agent composition according to any one of claims 1 to 3, wherein component (a1) is one or more cationic surfactants selected from compounds represented by the following general formula (a1-1) and compounds represented by the following general formula (a1-2). 【Chemistry 1】 [In the formula, R １ａ R represents a long-chain alkyl group, a long-chain alkenyl group, or a long-chain hydroxyalkyl group having 8 to 16 carbon atoms. ２ａ , R ３ａ and R ４ａ These represent, either identically or differently, an alkyl group having 1 to 3 carbon atoms, a hydroxyalkyl group having 1 to 3 carbon atoms, or a polyoxyethylene group with an average addition mole of 10 or less, Y － This indicates a halogen atom, or an anionic residue of a sulfonic acid ester or sulfate ester having 1 to 5 carbon atoms. 【Chemistry 2】 [In the formula, R ５ａ represents a long-chain alkyl group, a long-chain alkenyl group or a long-chain hydroxyalkyl group having 8 to 16 carbon atoms, and R ６ａ , R ７ａ are the same or different and each represents an alkyl group having 1 to 3 carbon atoms, a hydroxyalkyl group having 1 to 3 carbon atoms or a polyoxyethylene group having an average addition mole number of 10 or less, and R and R ８ａ represents an alkylene group having 1 to 3 carbon atoms. Z － represents a halogen atom, or an anion residue of a sulfonic acid ester or a sulfuric acid ester having 1 to 5 carbon atoms. ]

5. A hard surface cleaning agent composition according to any one of claims 1 to 4, further comprising (d) an amphoteric surfactant as a surfactant.

6. A cleaning agent composition for hard surfaces according to any one of claims 1 to 5, wherein the composition optionally contains (e) an anionic surfactant as a surfactant, and the content of (e) anionic surfactant is 50% by mass or less relative to the content of component (a).

7. Furthermore, (f) a cleaning agent composition for hard surfaces according to any one of claims 1 to 6, comprising a water-soluble solvent.

8. The hard surface cleaning agent composition according to any one of claims 1 to 7, further comprising (g) a thickening agent.

9. A hard surface cleaning agent composition according to any one of claims 1 to 8, wherein (a) contains component (a1) and component (a2) as components, and the mass ratio of the content of component (a1) to the content of component (a2), which is (a1) / (a2), is 0.1 or more and 10 or less.

10. A cleaning agent composition for hard surfaces according to any one of claims 1 to 9, wherein the hard surface is tile, glass, stainless steel, plastic, or ceramic.

11. A method for cleaning a hard surface, comprising contacting the hard surface with the hard surface cleaning agent composition according to any one of claims 1 to 10 for a predetermined time, and then rinsing the hard surface with water.

12. The method for cleaning a hard surface according to claim 11, wherein the predetermined time is one minute or more.

13. The method for cleaning a hard surface according to claim 11 or 12, wherein the hard surface is a hard surface to which limescale and soap scum stains are attached.

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