Detergent composition and cleaning method

Abstract

To provide a cleaner composition having excellent cleanability and rinsability.SOLUTION: A cleaner composition contains an aromatic compound having a sulfate group and / or a sulfonic acid (salt) group (A) and / or a (poly) oxyalkylene alkyl ether sulfate ester (salt) (B), a hypochlorous acid (salt) (C), and an alkali agent (D).SELECTED DRAWING: None

Description

[[Technical Field]]

[0001] The present invention relates to a detergent composition and a cleaning method. [[Background Art]]

[0002] Conventionally, in food factories and the like, various cleaning methods such as foam cleaning have been used as methods for removing food soil such as proteins and oils and fats adhering to food processing machinery, conveyor lines, floors, walls and the like. Foam cleaning is a method of removing dirt by foaming a detergent composition and spraying it onto an object to be cleaned. When the detergent composition contacts in the form of foam, the contact time with the object to be cleaned is prolonged, and an improvement in the cleaning effect can be expected.

[0003] For example, a foam detergent composition used for foam cleaning is required to have foaming power for spraying in the form of foam. Since detergent compositions used for such applications have high foaming power, even when diluted with a large amount of water during rinsing, new foam is formed due to collision of water and the like, resulting in poor rinsability. For example, when foam accumulates near a drain outlet, the upper part of the foam does not come into contact with rinse water, so the foam does not disappear for a long time, which may require extra rinse water and time. Therefore, detergent compositions, particularly foam detergent compositions, are desired to have good rinsability (good foam breaking properties during rinsing).

[0004] As such a detergent composition with good rinsability, for example, Patent Document 1 discloses a liquid detergent composition for hard surfaces containing (A) an amine oxide, (B) a carboxylic acid having a linear branched hydrocarbon group with a total carbon number of 11 or more and 21 or less or a salt thereof, and water, wherein the mass ratio (A) / (B) of the content of component (A) to the content of component (B) is 0.4 or more and 55 or less. [[Prior Art Literature]] [[Patent Literature]]

[0005] [[Patent Document 1]] Japanese Patent Publication No. 2018-203853 [Overview of the Initiative] [Problems that the invention aims to solve]

[0006] In recent years, from the perspective of water conservation and energy saving, there has been a demand for detergent compositions, such as foaming detergent compositions, that have good foaming properties and foam stability, allow for longer contact time with the object being cleaned, improve cleaning and disinfecting properties, and also have excellent rinsability. The detergent composition described in Patent Document 1 states that it achieves both foam stability and rinsability by using a combination of amine oxide and branched fatty acid. On the other hand, developing further detergent compositions and increasing their variations would broaden the range of choices available when industrially manufacturing detergent compositions, which has significant technical implications.

[0007] The present invention was made to solve the above problems and aims to provide a detergent composition that has excellent cleaning and rinsing properties. [Means for solving the problem]

[0008] To achieve the above objective, the detergent composition of the present invention is characterized by comprising an aromatic compound (A) having a sulfate group and / or a sulfonic acid (salt) group, and / or a (poly)oxyalkylene alkyl ether sulfate (salt) (B), a hypochlorous acid (salt) (C), and an alkaline agent (D). The above (A) and (B) exhibit foaming properties and foam stability (collectively referred to as foaming properties in this specification) at high concentrations, allowing the cleaning agent composition to be sprayed as a uniform foam, and the sprayed foam to be stably maintained. At low concentrations, they exhibit antifoaming properties, so they are quickly defoamed during rinsing when diluted with rinse water. This action allows for both foaming properties and rinsability to be achieved. On the other hand, the above (C) has excellent cleaning and disinfecting properties. Furthermore, the above (D) is suitable for cleaning oil and protein stains. Therefore, in the detergent composition of the present invention, the foaming properties of the aforementioned (A) and (B) ensure a sufficient contact time between the detergent composition and the object to be cleaned, so it is considered that the detergency and sterilization performance of the aforementioned (C) and the detergency against oily stains and protein stains of the aforementioned (D) are sufficiently exhibited. In the present specification, a sulfate group is -OSO3 - refers to a group including the group represented by, for example -OSO3M 1 (M 1 represents a hydrogen atom, a metal atom, or ammonium.) is preferred. A sulfonic acid (salt) group refers to a sulfonic acid group and / or a sulfonate group, and is -SO3M 2 (M 2 represents a hydrogen atom, a metal atom, or ammonium.). (Poly)oxyalkylene alkyl ether sulfate ester (salt) refers to at least one selected from the group consisting of oxyalkylene alkyl ether sulfate ester, oxyalkylene alkyl ether sulfate ester salt, polyoxyalkylene alkyl ether sulfate ester, and polyoxyalkylene alkyl ether sulfate ester salt, and as described later, RO-(E 2 O) n -SO3M 3 (R represents an alkyl group. E 2 represents an alkylene group. n represents an integer of 1 or more. M 3 represents a hydrogen atom, a metal atom, or ammonium.). Hypochlorous acid (salt) refers to hypochlorous acid and / or hypochlorite.

[0009] In the detergent composition of the present invention, the aromatic compound (A) is preferably represented by any one of the following general formulas (1) to (3).

Chemical Formula

[0010] In the detergent composition of the present invention, the total content of the above aromatic compound (A) and the above (poly)oxyalkylene alkyl ether sulfate (salt) (B) is preferably 0.8% by mass or more. In this specification, the total content of the aromatic compound (A) and the (poly)oxyalkylene alkyl ether sulfate (salt) (B) is the content of only one of the aromatic compound (A) or the (poly)oxyalkylene alkyl ether sulfate (salt) (B) if the detergent composition of the present invention contains only one of them. This results in a detergent composition of the present invention that has excellent rinsability while exhibiting more pronounced foaming properties.

[0011] In the detergent composition of the present invention, the total content of the above aromatic compound (A) and the above (poly)oxyalkylene alkyl ether sulfate (salt) (B) is preferably 15% by mass or less. This further prevents the effects of the present invention from becoming saturated or turbidity and precipitation from occurring in the composition.

[0012] In the detergent composition of the present invention, the content of the above-mentioned hypochlorous acid (salt) (C) is preferably 0.1 to 12% by mass. This results in superior cleaning and disinfecting properties. Furthermore, it prevents saturation of the cleaning and disinfecting effects, as well as the formation of turbidity and sedimentation.

[0013] In the detergent composition of the present invention, the alkaline agent (D) is preferably an alkali metal hydroxide. This results in improved cleaning performance against oil and protein stains.

[0014] The detergent composition of the present invention is preferably a liquid. This makes the detergent composition of the present invention easier to handle.

[0015] The cleaning agent composition of the present invention is preferably used on hard surfaces. When the cleaning agent composition of the present invention is used on a hard surface, the effects of the present invention become even more pronounced.

[0016] The detergent composition of the present invention is preferably a foaming detergent composition. If the cleaning agent composition of the present invention is a foaming cleaning agent composition, the contact time with the object to be cleaned can be extended, improving cleaning and disinfecting properties, and also resulting in superior rinsing properties.

[0017] The present invention also includes a cleaning method that involves cleaning using the cleaning agent composition of the present invention. The above cleaning step may use the undiluted cleaning agent composition of the present invention, or it may use the solvent or dilution of the cleaning agent composition of the present invention. In particular, it is preferable that the above cleaning step involves bringing the undiluted cleaning agent composition of the present invention, or its solvent or dilution, into contact with the object to be cleaned in a foamy form. The cleaning method of the present invention reduces the burden on workers during cleaning and reduces the amount of cleaning agent composition used, because the cleaning agent composition has excellent cleaning properties. Furthermore, the cleaning method of the present invention reduces the amount of rinse water used, because the cleaning agent composition has excellent rinsing properties. [Effects of the Invention]

[0018] The detergent composition of the present invention exhibits excellent cleaning and rinsing properties. [Modes for carrying out the invention]

[0019] The present invention will be described in detail below. However, the present invention is not limited to the following embodiments and can be modified and applied as appropriate without altering the essence of the invention.

[0020] First, the detergent composition of the present invention will be described. The detergent composition of the present invention is characterized by comprising an aromatic compound (A) having a sulfate group and / or a sulfonic acid (salt) group, and / or a (poly)oxyalkylene alkyl ether sulfate (salt) (B), a hypochlorous acid (salt) (C), and an alkaline agent (D).

[0021] In addition, one preferred embodiment of the present invention is that the detergent composition of the present invention contains an aromatic compound (A) having a sulfate group and / or a sulfonic acid (salt) group. This tends to result in superior foaming properties. Furthermore, it is also a preferred embodiment of the present invention that the detergent composition of the present invention contains (poly)oxyalkylene alkyl ether sulfate (salt) (B). This tends to result in better rinsing properties.

[0022] In the detergent composition of the present invention, (A) has a sulfate group and / or a sulfonic acid (salt) group. As mentioned above, the sulfate group is -OSO3 - This refers to substances containing the group represented by -OSO3M, for example. 1 (M 1 ) represents a hydrogen atom, a metal atom, or ammonium. ) is preferred. The sulfonic acid (salt) group refers to a sulfonic acid group and / or a sulfonic acid base, -SO3M 2 (M 2 (This represents a hydrogen atom, a metal atom, or ammonium.)

[0023] The above M 1 M 2 Examples of metal atoms in this material include alkali metal atoms such as sodium atoms and potassium atoms, magnesium atoms, and calcium atoms. Preferably, the metal atom is an alkali metal atom, and more preferably, a sodium atom. Note that the above M 1 M 2 In this case, ammonium is NH4.

[0024] The above aromatic compound (A) is preferably represented by the following general formula (1). [ka] (In general formula (1), R 1 and R 2 α represents an alkyl group having 1 to 18 carbon atoms, either identical or different. α and β are integers from 0 to 5, and the sum of α and β is 1 or greater. 1 and A 2 γ and δ represent a sulfate group or a sulfonic acid (salt) group, either identical or different. γ and δ are integers between 0 and 5, and the sum of γ and δ is 1 or greater. X represents an oxygen atom or a sulfur atom.

[0025] The above R 1 and R 2This represents an alkyl group having 1 to 18 carbon atoms. The alkyl group preferably has 3 to 16 carbon atoms, more preferably 6 to 16, and even more preferably 10 to 16. The alkyl group described above may be a primary alkyl group, a secondary alkyl group, or a tertiary alkyl group, but it is preferably a primary alkyl group or a secondary alkyl group, and more preferably a primary alkyl group. Also, the above R 1 and R 2 Preferably, at least one of these is located at the para position of the phenyl ether skeleton or the phenyl thioether skeleton.

[0026] The above α and β are integers between 0 and 5, respectively. Preferably, α and β are integers between 0 and 4, more preferably between 0 and 3, even more preferably between 0 and 2, and particularly preferably 0 or 1. The sum of α and β is 1 or greater. The sum of α and β is 9 or less, preferably 8 or less, more preferably 6 or less, even more preferably 4 or less, and particularly preferably 2 or less. The sum of α and β is most preferably 1.

[0027] A above 1 and A 2 These represent, either identical or different, a sulfate group or a sulfonic acid (salt) group. (See A above) 1 and A 2 Preferably, represents a sulfonic acid (salt) group. Examples of sulfonic acid bases include sodium sulfonate, potassium sulfonate, magnesium sulfonate, calcium sulfonate, and ammonium sulfonate.

[0028] The above values ​​of γ and δ are integers between 0 and 5, respectively. Preferably, γ and δ are integers between 0 and 4, more preferably between 0 and 3, even more preferably between 0 and 2, particularly preferably 0 or 1, and most preferably 1. The sum of γ and δ is 1 or greater. The sum of γ and δ is 9 or less, preferably 8 or less, more preferably 6 or less, even more preferably 4 or less, and particularly preferably 2 or less. The sum of γ and δ is most preferably 2. The above X represents an oxygen atom or a sulfur atom. Preferably, the above X represents an oxygen atom.

[0029] Another preferred embodiment of the present invention is that the above aromatic compound (A) is represented by the following general formula (2). [ka] (In general formula (2), R 3 η represents an alkyl group with 1 to 18 carbon atoms. η is an integer between 1 and 4. 3 θ represents a sulfate group or sulfonic acid (salt) group. θ is an integer between 1 and 4.

[0030] The above R 3 This represents an alkyl group having 1 to 18 carbon atoms. Preferably, the alkyl group has 3 to 16 carbon atoms. The alkyl group described above may be a primary alkyl group, a secondary alkyl group, or a tertiary alkyl group, but it is preferably a primary alkyl group or a secondary alkyl group, and more preferably a primary alkyl group. Also, the above R 3 Preferably, at least one of these is located at the α-position of the naphthalene skeleton.

[0031] The above η is an integer between 1 and 4. Preferably, the above η is an integer between 1 and 3, more preferably 1 or 2, and even more preferably 1. A 3 This represents a sulfate group or a sulfonic acid (salt) group. 3 Preferably, represents a sulfonic acid (salt) group. Examples of sulfonic acid bases include sodium sulfonate, potassium sulfonate, magnesium sulfonate, calcium sulfonate, and ammonium sulfonate.

[0032] The above θ is an integer between 1 and 4. Preferably, the above θ is an integer between 1 and 3, more preferably 1 or 2, and even more preferably 1.

[0033] Another preferred embodiment of the present invention is that the above aromatic compound (A) is represented by the following general formula (3). [ka] (In general formula (3), R 4 and E 1 These represent alkylene groups, either identical or different. 4 (where m represents a sulfate group or sulfonic acid (salt) group. m and n are integers from 1 to 5.)

[0034] The above R 4 represents an alkylene group. The alkylene group preferably has 1 to 18 carbon atoms, more preferably 1 to 12, even more preferably 1 to 6, particularly preferably 1 to 4, and most preferably 2 carbon atoms. The alkylene group may be linear or branched, but it is preferable that it be branched.

[0035] E above 1 represents an alkylene group. The alkylene group preferably has 1 to 18 carbon atoms, more preferably 1 to 12, even more preferably 1 to 6, particularly preferably 1 to 4, and most preferably 2 carbon atoms. The alkylene group may be linear or branched.

[0036] A above 4 This represents a sulfate group or a sulfonic acid (salt) group. (See A above) 4Preferably, represents a sulfonic acid (salt) group. Examples of sulfonic acid bases include sodium sulfonate, potassium sulfonate, magnesium sulfonate, calcium sulfonate, and ammonium sulfonate.

[0037] The above values ​​of m and n are integers from 1 to 5. For example, one preferred embodiment of the present invention is that m is an integer from 1 to 3.

[0038] When the detergent composition of the present invention contains the above aromatic compound (A), the content of aromatic compound (A) in the detergent composition is preferably 0.6% by mass or more, more preferably 0.75% by mass or more, even more preferably 0.9% by mass or more, and particularly preferably 1.2% by mass or more. In the detergent composition of the present invention, the content of the aromatic compound (A) is preferably 12% by mass or less, more preferably 10% by mass or less, even more preferably 7.5% by mass or less, and particularly preferably 6% by mass or less. If multiple types of aromatic compound (A) are used, the content of aromatic compound (A) shall be determined as the sum of the content of each aromatic compound (A).

[0039] In the detergent composition of the present invention, (B) is a (poly)oxyalkylene alkyl ether sulfate (salt). The above (poly)oxyalkylene alkyl ether sulfate (salt) is RO-(E 2 O) n -SO3 M 3 (R represents an alkyl group. E 2 represents an alkylene group. n represents an integer greater than or equal to 1. 3 (This represents a hydrogen atom, a metal atom, or ammonium.)

[0040] The above R represents an alkyl group. The alkyl group preferably has 1 to 24 carbon atoms, more preferably 2 to 18, even more preferably 3 to 15, and particularly preferably 4 to 12 carbon atoms. The alkyl group described above may be a primary alkyl group, a secondary alkyl group, or a tertiary alkyl group, but it is preferably a primary alkyl group or a secondary alkyl group.

[0041] E above 2 represents an alkylene group. The alkylene group preferably has 1 to 18 carbon atoms, more preferably 1 to 12, even more preferably 1 to 6, particularly preferably 1 to 4, and most preferably 2 carbon atoms. The alkylene group may be linear or branched.

[0042] The above n represents an integer of 1 or more. n is preferably an integer between 1 and 20, more preferably between 1 and 10, even more preferably between 1 and 5, and particularly preferably between 1 and 3.

[0043] The above M 3 This represents a hydrogen atom, a metal atom, or ammonium. (See above M) 3 Examples of metal atoms in this material include alkali metal atoms such as sodium atoms and potassium atoms, magnesium atoms, and calcium atoms. Preferably, the metal atom is an alkali metal atom, and more preferably, a sodium atom. The above M 3 In this case, ammonium is NH4.

[0044] Examples of the above-mentioned (poly)oxyalkylene alkyl ether sulfate (salt) include (poly)oxyethylene alkyl ether sulfate (AES) salts having 3 to 18 carbon atoms in the alkyl group, and oxyethylene alkyl ether sulfate salts such as sodium oxyethylene butyl ether sulfate are preferred. These can be used individually or in combination of two or more types.

[0045] When the detergent composition of the present invention contains the above-mentioned (poly)oxyalkylene alkyl ether sulfate (salt) (B), the content of (poly)oxyalkylene alkyl ether sulfate (salt) (B) in the detergent composition is preferably 0.6% by mass or more, more preferably 0.75% by mass or more, even more preferably 0.9% by mass or more, and particularly preferably 1.2% by mass or more. In the detergent composition of the present invention, the content of the above (poly)oxyalkylene alkyl ether sulfate (salt) (B) is preferably 12% by mass or less, more preferably 10% by mass or less, even more preferably 7.5% by mass or less, and particularly preferably 6% by mass or less. Furthermore, if multiple types of (poly)oxyalkylene alkyl ether sulfates (salts) are used, the content of each (poly)oxyalkylene alkyl ether sulfate (salt) shall be determined as the sum of the content of each individual (poly)oxyalkylene alkyl ether sulfate (salt).

[0046] In the detergent composition of the present invention, the total content of the above aromatic compound (A) and the above (poly)oxyalkylene alkyl ether sulfate (salt) (B) is preferably 0.8% by mass or more. The total content of the above is more preferably 1.0% by mass or more, even more preferably 1.2% by mass or more, and particularly preferably 1.5% by mass or more.

[0047] In the detergent composition of the present invention, the total content of the above aromatic compound (A) and the above (poly)oxyalkylene alkyl ether sulfate (salt) (B) is preferably 15% by mass or less. The total content of the above is more preferably 13% by mass or less, even more preferably 10% by mass or less, and particularly preferably 8% by mass or less.

[0048] In the detergent composition of the present invention, (C) is hypochlorous acid (salt). Examples of hypochlorous acid (salts) include hypochlorous acid, sodium hypochlorite, calcium hypochlorite, and other metal salts of hypochlorous acid. One of these may be used alone, or two or more may be used in combination.

[0049] In the detergent composition of the present invention, the content of the above-mentioned hypochlorous acid (salt) (C) is preferably 0.1% by mass or more, more preferably 0.5% by mass or more, even more preferably 1% by mass or more, and particularly preferably 1.5% by mass or more. In the detergent composition of the present invention, the content of hypochlorous acid (salt) (C) is preferably 12% by mass or less, more preferably 11% by mass or less, even more preferably 10% by mass or less, and particularly preferably 8% by mass or less, from the viewpoint of suppressing chlorine odor. When multiple types of hypochlorous acid (salt) are used, the hypochlorous acid (salt) content is determined as the sum of the contents of each hypochlorous acid (salt).

[0050] In the detergent composition of the present invention, the total content of the above aromatic compound (A), the above (poly)oxyalkylene alkyl ether sulfate (salt) (B), and the above hypochlorous acid (salt) (C) is preferably 1% by mass or more, more preferably 2% by mass or more, and even more preferably 4% by mass or more. In the detergent composition of the present invention, the total content of the above is preferably 20% by mass or less, more preferably 17% by mass or less, and even more preferably 15% by mass or less.

[0051] In the detergent composition of the present invention, (D) is an alkaline agent. As alkaline agents, for example, hydroxides, carbonates, and silicates can be used, and the type is not particularly limited, but sodium hydroxide, potassium hydroxide, sodium carbonate, potassium carbonate, sodium bicarbonate, potassium bicarbonate, sodium silicate, sodium metasilicate, sodium orthosilicate, potassium silicate, and their hydrates are preferred, and one of these may be used alone, or two or more may be used in combination. Among these, hydroxides are preferred, alkali metal hydroxides are more preferred, and sodium hydroxide is even more preferred.

[0052] In the detergent composition of the present invention, the content of the alkaline agent (D) is preferably 2% by mass or more, more preferably 3% by mass or more, even more preferably 4% by mass or more, even more preferably 5% by mass or more, even more preferably 6% by mass or more, and particularly preferably 8% by mass or more. In the detergent composition of the present invention, the content of the above-mentioned alkaline agent (D) is preferably 80% by mass or less, more preferably 50% by mass or less, and even more preferably 20% by mass or less. When multiple types of alkaline agents are used, the total alkaline agent content is determined as the sum of the individual alkaline agent contents.

[0053] In the detergent composition of the present invention, the ratio of the total content of the aromatic compound (A) and the (poly)oxyalkylene alkyl ether sulfate (salt) (B) ({(A)+(B)} / (D)) to the content of the alkaline agent (D) is preferably 0.05 or more, and more preferably 0.1 or more. In the detergent composition of the present invention, the above ratio ({(A)+(B)} / (D)) is preferably 3 or less, more preferably 1.5 or less, even more preferably 1 or less, and particularly preferably 0.6 or less.

[0054] The cleaning agent composition of the present invention may further contain other components such as surfactants, chelating agents, solvents, dispersants, wettability enhancers, viscosity modifiers, corrosion inhibitors, colorants, fragrances, acidifiers, stabilizers, defoamers, and disinfectants, in addition to those mentioned above.

[0055] Other examples of surfactants include nonionic surfactants and amphoteric surfactants.

[0056] Examples of nonionic surfactants include polyoxyalkylene alkyl ethers, pluronic block polymers, reverse pluronic block polymers, tetronic block polymers, reverse tetronic block polymers, and polyoxyalkylene alkylphenyl ethers, and one or more of these can be used. When the detergent composition of the present invention contains a nonionic surfactant, the content of the nonionic surfactant is not particularly limited, but is preferably 0.1 to 30% by mass, and more preferably 0.1 to 5% by mass, in the detergent composition.

[0057] Examples of amphoteric surfactants include amine oxide compounds such as alkylamine oxides and alkylamidoamine oxides, betaine compounds such as alkylbetaines and alkylamidobetaines, and alkylamino fatty acid salts. One or more of these can be used.

[0058] When the detergent composition of the present invention contains an amphoteric surfactant, the content of the amphoteric surfactant is not particularly limited, but is preferably 0.1 to 30% by mass, and more preferably 0.1 to 5% by mass, in the detergent composition. Furthermore, another preferred embodiment of the present invention is that the detergent composition contains less than 0.5% by mass of the amine oxide compound. This allows for better foam removal during rinsing. The detergent composition of the present invention more preferably contains 0.1% by mass or less of an amine oxide compound. Furthermore, the detergent composition of the present invention is even more preferably free of an amine oxide compound.

[0059] Examples of chelating agents include phosphonic acid-based, phosphoric acid-based, and ether carboxylate-based agents, and these may be used in combination. Among these, phosphonic acid-based chelating agents are preferred.

[0060] Examples of phosphonic acid-based chelating agents include hydroxyethylidenephosphonic acid (HEDP), nitrilotrimethylenephosphonic acid (NTMP), and phosphonovobutanetricarboxylic acid (PBTC). The above chelating agent may have at least a portion of the phosphonic acid portion in the form of a salt.

[0061] Examples of phosphate-based chelating agents include tripolyphosphate and hexametaphosphate.

[0062] Examples of salts used in the chelating agent mentioned above include alkali metal salts such as sodium and potassium, magnesium salts, and calcium salts. Among these, alkali metal salts are preferred, and sodium salts or potassium salts are more preferred. Furthermore, the chelating agent and the salt of the chelating agent may be mixed in the liquid detergent composition, and if the chelating agent is included in the liquid detergent composition, it may be formed into a salt by the subsequent addition of sodium ions or the like. When the detergent composition of the present invention contains a chelating agent, the amount of the chelating agent is not particularly limited, but it is preferably 0.1 to 5% by mass in the detergent composition.

[0063] Examples of solvents include fatty acid-based solvents. As the fatty acid-based solvent, fatty acids having 1 to 12 carbon atoms are preferred, and fatty acids having 1 to 8 carbon atoms are more preferred. Examples of such fatty acids include straight-chain fatty acids such as octanoic acid and branched fatty acids such as octicic acid, and one or more of these can be used. Among these, octanoic acid and octic acid are preferable. By adding a solvent, the separation of each main component and turbidity in the detergent composition can be suppressed. When the cleaning agent composition of the present invention contains a solvent, the solvent content is not particularly limited, but it is preferably 0.1 to 10% by mass in the cleaning agent composition.

[0064] Examples of dispersants include polymeric dispersants with a weight-average molecular weight of 3,000 to 300,000. Examples of such polymer dispersants include polyacrylic acid, polyaconitic acid, polyitaconic acid, polycitraconic acid, polyfumaric acid, polymaleic acid, polymethaconic acid, poly-α-hydroxyacrylic acid, polyvinylphosphonic acid, sulfonated polymaleic acid, olefin-maleic acid copolymer, diisobutylene anhydride copolymer, styrene anhydride copolymer, methyl vinyl ether anhydride copolymer, ethylene anhydride copolymer, ethylene crosslinked anhydride copolymer, acrylic anhydride copolymer, vinyl acetate anhydride copolymer, and maleic anhydride. Examples include acrylonitrile copolymers, maleic anhydride acrylic ester copolymers, maleic anhydride butadiene copolymers, maleic anhydride isoprene copolymers, poly-β-ketocarboxylic acids derived from maleic anhydride and carbon monoxide, itaconic acid, ethylene copolymers, itaconic acid aconitate copolymers, itaconic acid maleic acid copolymers, itaconic acid acrylic acid copolymers, malonic acid methylene copolymers, itaconic acid fumaric acid copolymers, ethylene glycol ethylene terephthalate copolymers, vinylpyrrolidone vinyl acetate copolymers, and metal salts thereof, and one or more of these can be used. Examples of metal salts include alkali metal salts such as sodium and potassium, magnesium salts, and calcium salts. Among these, alkali metal salts are preferred, and sodium salts or potassium salts are more preferred. When the detergent composition of the present invention contains a dispersant, the amount of the dispersant is not particularly limited, but it is preferably 0.1 to 5% by mass in the detergent composition.

[0065] The detergent composition of the present invention preferably further contains water. Water is included as the remainder of the components other than those mentioned above, and its content is not particularly limited. While not particularly limited, examples of water include tap water, distilled water, purified water, deionized water, and deionized water; one or more of these can be used. In the detergent composition of the present invention, the mass concentration of water is preferably 1 to 97% by mass, more preferably 3 to 95% by mass, even more preferably 5 to 90% by mass, and particularly preferably 10 to 85% by mass.

[0066] The detergent composition of the present invention is preferably a liquid. This makes the detergent composition of the present invention easier to handle. Furthermore, liquid detergent compositions can be prepared as needed by controlling the amount of water and solvent.

[0067] In the detergent composition of the present invention, the pH at 25°C is preferably 10 to 13. Detergent compositions with a pH of 10-13 at 25°C are particularly effective as alkaline detergents for removing oil and protein stains. Furthermore, the pH can be adjusted by controlling the amount of alkaline or acidic agents. pH can be measured using a commercially available pH meter, but for example, it can be measured using a Horiba F-73 pH meter at a temperature of 25°C.

[0068] Next, the uses of the cleaning agent composition of the present invention will be described. The cleaning agent composition of the present invention is preferably used on hard surfaces. Examples of hard materials with hard surfaces include metals, ceramics, plastics and other resins, glass, and surface-treated wood. Examples of hard surfaces include the floors, walls, ceilings, and roofs of buildings such as shops and factories, as well as the surfaces of items such as tableware, cooking utensils, cooking equipment, containers, and trays. As described above, the cleaning agent composition of the present invention is excellent at cleaning oil and protein stains. Such a cleaning agent composition of the present invention is suitable for cleaning in places that handle food (hotels, restaurants, grocery stores, etc.) and / or food factories (food processing facilities, cooking facilities, etc.), and can be suitably used to clean the floors, walls, and ceilings of places that handle food and / or food factories.

[0069] The present invention also includes a cleaning method that involves cleaning using the cleaning agent composition of the present invention. In the cleaning process described above, the cleaning agent composition of the present invention may be dissolved in water or diluted with water (for example, 10 to 300 times) as needed. In the cleaning process described above, the cleaning agent composition of the present invention, its solvent, or its diluted solution may be used for foam cleaning in a cleaning machine such as a pressurized foam cleaning machine, or it may be sprayed to create foam for cleaning. Alternatively, the cleaning agent composition of the present invention, its solvent, or its diluted solution may be used by putting it into an automatic cleaning machine, or it may be applied to the object to be cleaned, left to stand for a while, then scrubbed with a brush, mop, polisher, etc., and the liquid (wastewater) after cleaning may be collected with a squeegee, etc.

[0070] The above cleaning step is preferably a foaming cleaning step. For example, one preferred embodiment of the cleaning method of the present invention is that in the above cleaning step, the liquid cleaning agent composition of the present invention or a diluted solution thereof is foamed up using a cleaning machine such as a pressurized foaming cleaning machine for foaming cleaning. The liquid detergent composition of the present invention has sufficient foaming power and excellent rinsability, and is therefore suitable for use as a foaming detergent composition that is foamed up and brought into contact with the object to be cleaned. Furthermore, if the liquid detergent composition of the present invention is a foaming detergent composition, it can be easily handled, and the detergent composition, which has excellent cleaning properties for oil and protein stains, can be made into a foam and brought into sufficient contact with the object to be cleaned. Rinsing is also easy, making it particularly suitable for cleaning the floors, walls, and ceilings of food handling stores and / or food factories. [Examples]

[0071] The following are examples illustrating the present invention in more detail, but the present invention is not limited to these examples. In the examples, unless otherwise specified, "%" means "mass%".

[0072] Detergent compositions for Examples 1-38 and Comparative Examples 1-3 were prepared using the formulations described in Tables 1-4. The compositional values ​​in Tables 1 to 4 represent the percentage (mass) of the pure content of each component in the detergent composition. The manufacturers of the compounds in Tables 1 to 4 are as follows:

[0073] (Aromatic compounds (A) having a sulfate group and / or a sulfonic acid (salt) group) (A-1-1) Alkyl (C mixed) diphenyl ether disulfonate sodium: Eleminol MON-2, manufactured by Sanyo Chemical Industries, Ltd. (A-1-2) Alkyl(C8) diphenyl ether disulfonate sodium: In the above general formula (1), R 1 and R 2 Each of these represents a primary alkyl group with 8 carbon atoms, where α and β are each 1, and R 1 , R 2 Each of these is bonded to the para position of the ether bond in the benzene ring. 1 and A 2 Each of the following represents a sodium sulfonate group, γ and δ are each 1, and X represents an oxygen atom. (Manufactured by Niitaka Co., Ltd.) (A-1-3) Alkyl(C18)diphenyl ethersulfonate sodium: In the above general formula (1), R 1 represents a secondary alkyl group with 18 carbon atoms, where α is 1, β is 0, and R1 It is bonded at the para position of the ether bond in the benzene ring. 1 The symbol represents a sodium sulfonate group, where γ is 1, δ is 0, and X represents a sulfur atom. (Manufactured by Niitaka Co., Ltd.) (A-2-1) Sodium alkylnaphthalene sulfonate: Perex NBL, manufactured by Kao Corporation (A-2-2) Alkyl(C4)naphthalenesulfonate sodium: In the above general formula (2), R 3 represents an alkyl group with 4 carbon atoms, and η is 2, A 3 represents a sodium sulfonate group, and θ is 2. (Manufactured by Niitaka Co., Ltd.) (A-3) Polyoxyethylene styrene-derived phenyl ether sulfate ammonium:Hytenol NF-13, manufactured by Daiichi Kogyo Seiyaku Co., Ltd.

[0074] ((Poly)oxyalkylene alkyl ether sulfate (salt) (B)) (B-1)C4AES: Taipole BX-CONC, EO 1 piece, manufactured by Taiko Oil & Fat Industry Co., Ltd. (B-2)C8AES: Taipol 22HS, EO 2 pieces, manufactured by Taiko Oil & Fat Industry Co., Ltd. (B-3)C12AES: Teika Pole NE1230, EO 3 pieces, manufactured by Teika Co., Ltd.

[0075] (Other ingredients) SAS: Sodium Alkanesulfonate: Hostapur SAS30, manufactured by Clariant Japan Co., Ltd. C8AS: Thai Pole 2H, manufactured by Taiko Oil & Fat Industry Co., Ltd. C14AO: Lauryldimethylamine oxide: Kadenax DM14D-N, manufactured by Lion Specialty Chemicals Co., Ltd.

[0076] Test methods and evaluation criteria <Effervescent> A 3% aqueous solution of this composition was poured into a foamer (GLORIA pressurized foamer FM10), and the shape of the foam when sprayed onto an upright SUS304 stainless steel tray (30cm x 30cm) was evaluated. The evaluation criteria are as follows. The results are shown in Tables 1 to 4. ◎: Watery, spreading foam ○: watery foam △: Three-dimensional bubbles ×: Does not foam or does not spray. △, ○, and ◎ were judged to be practical.

[0077] <Good foaming properties> A 3% aqueous solution of this composition was poured into a foamer (GLORIA pressurized foamer FM10) and sprayed into a 2L beaker. The foam sprayed into the beaker was placed into a 500mL plastic container with a φ4 hole drilled 1cm from the bottom, and 3g of the foam was added to it. I poured 100 mL of water into the plastic container containing the foam over a period of 15 seconds. If bubbles remained on the liquid surface after the drainage from the hole stopped, another 100 mL of water was added. The foam-removing properties were evaluated by the number of times water was added until no bubbles remained on the liquid surface. The evaluation criteria are as follows. The results are shown in Tables 1 to 4. ◎: 1-5 times ○: 6-10 times △: 11-20 times ×: 21 times or more △, ○, and ◎ were judged to be practical.

[0078] <Cleaning power> 50g of ground pork, 75g of water, and 1g of all-purpose flour were mixed in a blender, and 1g of the mixture was spread onto a SUS304 stainless steel tray (13cm x 19cm). The test specimens were dried at room temperature for one hour. A 3% aqueous solution of this composition was poured into a foamer (GLORIA pressurized foam foamer FM10) and sprayed evenly to wet the entire test specimen. After letting it sit for 15 minutes, rinse it with water and visually check the amount of remaining dirt. The evaluation criteria are as follows. The results are shown in Tables 1 to 4. ◎: The area of ​​remaining dirt is 0% to 20% or less. ○: The area of ​​remaining dirt is more than 20% but less than or equal to 50%. △: The area where dirt remains is more than 50% but less than or equal to 70%. ×: The area of ​​remaining dirt is more than 70% but less than or equal to 100%. △, ○, and ◎ were judged to be practical.

[0079] [Table 1]

[0080] [Table 2]

[0081] [Table 3]

[0082] [Table 4]

[0083] Tables 1 to 4 show that the detergent compositions in the examples exhibit excellent foaming properties, foam-removing properties, and cleaning power. The cleaning agent composition according to this embodiment has excellent cleaning and rinsing properties and is suitable for use on hard surfaces, for example, as a foaming cleaning agent composition.

Claims

1. Aromatic compound (A) having a sulfate group and / or a sulfonic acid (salt) group, and / or (poly)oxyalkylene alkyl ether sulfate (salt) (B), Hypochlorous acid (salt) (C), It contains an alkaline agent (D), It may also contain an amine oxide compound. The aromatic compound (A) is represented by one of the following general formulas (1) to (3): The (poly)oxyalkylene alkyl ether sulfate (salt) (B) is RO-(E ２ O) ｎ -SO ３ M ３ (R represents an alkyl group with 4 to 12 carbon atoms. E ２ represents an alkylene group. n represents an integer greater than or equal to 1. ３ (This represents a hydrogen atom, a metal atom, or ammonium.) The hypochlorous acid (salt) (C) is at least one selected from the group consisting of hypochlorous acid, sodium hypochlorite, and calcium hypochlorite. In the detergent composition, the total content of the aromatic compound (A) and the (poly)oxyalkylene alkyl ether sulfate (salt) (B) is 0.8% by mass or more and 10% by mass or less, the content of the hypochlorous acid (salt) (C) is 1.5% by mass or more, the content of the alkaline agent (D) is 3% by mass or more, and the content of the amine oxide compound is less than 0.5% by mass. A detergent composition characterized by being used by spraying it in a foamy form. 【Chemistry 1】 (In general formula (1), R １ and R ２ are the same or different, each representing an alkyl group having 1 to 18 carbon atoms. α and β are each an integer of 0 to 5, and the sum of α and β is 1 or more. A １ and A ２ are the same or different, each representing a sulfate group or a sulfonic acid (salt) group. γ and δ are each an integer of 0 to 5, and the sum of γ and δ is 1 or more. X represents an oxygen atom or a sulfur atom.) 【Chemistry 2】 (In general formula (2), R ３ η represents an alkyl group with 1 to 18 carbon atoms. η is an integer from 1 to 4. ３ θ represents a sulfate group or a sulfonic acid (salt) group. θ is an integer between 1 and 4. 【Transformation 3】 (In general formula (3), R ４ and E １ These represent alkylene groups, either identical or different. A ４ (where m represents a sulfate group or a sulfonic acid (salt) group. m and n are integers from 1 to 5.)

2. The cleaning agent composition according to claim 1, wherein the content of the hypochlorous acid (salt) (C) in the cleaning agent composition is 1.5 to 12% by mass.

3. The cleaning agent composition according to claim 1 or 2, wherein the alkaline agent (D) is an alkali metal hydroxide.

4. A cleaning agent composition according to any one of claims 1 to 3, which is a liquid.

5. A cleaning agent composition according to any one of claims 1 to 4, for use on hard surfaces.

6. A cleaning method comprising the step of cleaning using a cleaning agent composition according to any one of claims 1 to 5.

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