Dishwashing detergent composition

Abstract

The objective is to provide a dishwashing detergent composition that has superior cleaning power and sustained foaming properties. [Solution] (A) Component: An anionic surfactant comprising one or more selected from the following components (A-1) and (A-2), (A-1) Ingredients: Sulfate ester type anionic surfactant (A-2) Ingredients: Sulfonate-type anionic surfactant (B) Components: Amine oxide type surfactant, (C) Ingredients: Nonionic surfactant, A dishwashing detergent composition comprising the above, wherein the total content of component (A), component (B), and component (C) relative to the total mass of the dishwashing detergent composition is 25% by mass or less, and the mass ratio expressed as component (A) / component (B) is 0.8 to 1.5.

Description

[Technical Field]

[0001] This invention relates to a dishwashing detergent composition. [Background technology]

[0002] Traditionally, dishwashing detergents have been required to effectively remove grease, maintain a rich lather throughout the washing process, and remain stable and uniform even in low-temperature environments, such as those experienced in winter. In recent years, with the growing awareness of water conservation and time-saving, the ability to easily rinse away foam has also become a desired property from consumers. Therefore, it is increasingly important to achieve high cleaning power while satisfying foam retention and detergent stability with a smaller amount of surfactant.

[0003] To date, dishwashing detergents with sustained foaming and excellent cleaning power have been proposed. For example, Patent Document 1 proposes a liquid detergent composition containing an anionic surfactant having an alkanesulfonic acid or a salt thereof having a hydrocarbon group with 10 to 18 carbon atoms, an amine oxide type semipolar surfactant having a hydrocarbon group with 10 to 18 carbon atoms, and water. According to the invention of Patent Document 1, the amount used can be reduced even when used in the presence of oil, and it is possible to combine sustained foaming, excellent cleaning power, and storage stability. [Prior art documents] [Patent Documents]

[0004] [Patent Document 1] Japanese Patent Publication No. 2010-275474

[0005] [Overview of the project] [Problems that the invention aims to solve]

[0006] Recently, due to environmental concerns and consumers' awareness of conservation, there is a demand for environmentally friendly detergents with a low surfactant content. The invention disclosed in Patent Document 1 is a liquid detergent composition that is excellent in detergency, foam volume, and storage stability. However, the surfactant content is extremely high. When this liquid detergent composition is diluted and used as is, it takes a long time to rinse off the foam, resulting in a large amount of water consumption. Therefore, there is a need for a detergent composition that can reduce the amount of rinsing water used with a small amount of surfactant and still maintain excellent detergency and foam persistence. In general, anionic surfactants and semi-polar surfactants are known to interact electrostatically. However, in the invention of Patent Document 1, the content of anionic surfactants relative to amine oxide type semi-polar surfactants is high, resulting in overly strong electrostatic interactions between surfactants and insufficient long-term low-temperature stability.

[0007] In view of the above circumstances, an object of the present invention is to provide a dishwashing detergent composition having better detergency and foam persistence.

Means for Solving the Problems

[0008] To solve the above problems, the present invention adopts the following configuration. [1] Component (A): An anionic surfactant containing one or more selected from the following Component (A-1) and Component (A-2), Component (A-1): A sulfate ester salt type anionic surfactant Component (A-2): A sulfonate type anionic surfactant Component (B): An amine oxide type surfactant, and Component (C): A nonionic surfactant, and A dishwashing detergent composition, wherein the total content of Component (A), Component (B), and Component (C) is 25% by mass or less based on the total mass of the dishwashing detergent composition, The mass ratio represented by Component (A) / Component (B) is 0.8 to 1.5, Dishwashing detergent composition. [2] The dishwashing detergent composition according to [1], wherein the mass ratio of component (A-1) to component (A-2) with respect to the total mass of the dishwashing detergent composition is 0.5 to 15. [3] The dishwashing detergent composition according to [1] or [2], wherein the (A-2) component is an α-olefin sulfonate. [Effects of the Invention]

[0009] The present invention aims to provide a dishwashing detergent composition that has superior cleaning power and sustained foaming ability. [Modes for carrying out the invention]

[0010] The following descriptions of constituent elements may be based on representative embodiments or specific examples, but the present invention is not limited to such embodiments. In this specification, numerical ranges expressed using "~" mean a range that includes the values ​​before and after "~" as the lower and upper limits, respectively. Furthermore, unless otherwise specified, the content of components that can take the form of acids or salts refers to the content in the form of acids.

[0011] [Dishwashing detergent composition] The dishwashing detergent composition of the present invention (hereinafter also simply referred to as "detergent composition") contains the following components (A), (B), and (C).

[0012] [(A) component] Component (A) is an anionic surfactant containing one or more components selected from the following components (A-1) and (A-2). (A-1) Ingredients: Sulfate ester type anionic surfactant (A-2) Ingredients: Sulfonate-type anionic surfactant The cleaning agent composition contains component (A), which provides high cleaning power against oily stains and excellent foaming properties.

[0013] Component (A-1) is a sulfate ester type anionic surfactant, and contains -O-SO3 in its molecule. - X+ (Here, X + represents a metal ion) is an anionic surfactant. Examples of sulfate ester type anionic surfactants include alkyl sulfate esters, alkenyl sulfate esters, polyoxyalkylene alkyl ether sulfate esters, polyoxyalkylene alkenyl ether sulfate esters, and the like.

[0014] Among the above-mentioned component (A-1), polyoxyethylene alkyl ether sulfate ester (AES) is preferred.

[0015] As the polyoxyethylene alkyl ether sulfate ester, a compound represented by the following formula (a1) is preferred. R 1 -O-(EO) n -SO3 - M + ···(a1) [In formula (a1), R 1 is a linear alkyl group having 8 to 18 carbon atoms, and the carbon atom bonded to the oxygen atom is a primary carbon atom, EO is an oxyethylene group, n represents the average number of moles of added EO, 0 < n ≦ 4, and M + is a cation.]

[0016] In formula (a1), the number of carbon atoms of R 1 is preferably 10 to 14, more preferably 12 to 14. Among them, R 1 is preferably an alkyl group derived from an oil and fat raw material. Suitable oil and fat raw materials include palm kernel oil, coconut oil, and the like.

[0017] As M + , examples include a hydrogen atom; alkali metal ions such as sodium and potassium; alkaline earth metal ions such as magnesium and calcium; alkanolamines such as monoethanolamine, diethanolamine, and triethanolamine. Among these, alkali metal ions are preferred, and sodium ions are more preferred. When M + is a divalent cation, the number of M + is the number multiplied by 1 / valence number for SO3- Assume that it is connected to M. For example, M + If it is a magnesium ion, M + The number is 1 / 2.

[0018] Suitable polyoxyalkylene alkyl ether sulfate salts include polyoxyethylene (1) linear alkyl (C12 / 14=75 / 25; derived from natural oils and fats) sulfate sodium salts. Note that "C12 / 14=75 / 25" is R 1 Compounds with 12 carbon atoms and R 1 This shows that the mass ratio of this compound to a compound with 14 carbon atoms is 75:25.

[0019] (A-2) Component is a sulfonate-type anionic surfactant, and contains -SO3 in its molecule. - X + (X here) + Anionic surfactants have (where represents a metal ion). Examples of sulfonate-type anionic surfactants include alkylbenzene sulfonates, alkanesulfonates, α-olefin sulfonates, internal olefin sulfonates, α-sulfo fatty acid salts, α-sulfo fatty acid alkyl ester salts, alkyl sulfosuccinates, and dialkyl sulfosuccinates.

[0020] Among the components (A-2) mentioned above, alkylbenzene sulfonates (LAS), alkane sulfonates, and α-olefin sulfonates (AOS) are preferred.

[0021] Examples of alkylbenzene sulfonates include linear alkylbenzene sulfonates with 8 to 16 carbon atoms in the linear alkyl group, with linear alkylbenzene sulfonates with 10 to 14 carbon atoms being preferred. Examples of LAS salts include sodium salts and potassium salts.

[0022] Examples of alkanesulfonates include those having 10 to 20 carbon atoms, with alkanesulfonates having 14 to 17 carbon atoms being preferred, and secondary alkanesulfonates (SAS) having 14 to 17 carbon atoms being even more preferred. Examples of SAS salts include sodium salts and potassium salts.

[0023] Examples of α-olefin sulfonates include those with 10 to 20 carbon atoms, with α-olefin sulfonates with 14 to 16 carbon atoms being more preferred. Examples of AOS salts include sodium salts and potassium salts.

[0024] In particular, component (A) preferably contains at least one of AES and AOS, more preferably contains AES, and even more preferably contains both AES and AOS.

[0025] (A) The content of component (A) is preferably 1 to 15% by mass, more preferably 3 to 13% by mass, and even more preferably 6 to 11% by mass, based on the total mass of the detergent composition. When the content of component (A) is above the lower limit, the cleaning power against oil stains and the persistence of foam are good. When the content of component (A) is below the upper limit, the cleaning power and the persistence of foam are good.

[0026] (A) When component contains both AES and AOS, the mass ratio expressed as AES / AOS (AES / AOS ratio) is 0.5 to 15, preferably 1 to 6, and more preferably 1 to 2. When the AES / AOS ratio is above the lower limit, the cleaning power against oil stains is good. When the AES / AOS ratio is below the upper limit, the foam persistence and low-temperature stability are good.

[0027] Component (A) may contain anionic surfactants other than components (A-1) and (A-2). For example, -CO2 in the molecule. - X + (X here) +Examples of carboxylate salt type anionic surfactants include those having (where represents a metal ion). Examples of carboxylate salt type anionic surfactants include alkyl carboxylates, alkyl ether carboxylates, amide ether carboxylates, sulfosuccinates, and amino acid-based anionic surfactants.

[0028] [(B) Component] Component (B) is an amine oxide type surfactant represented by the following formula (b1). R 2 -(A) p -N(-R 3 )(-R 4 )→O ···(b1) [In formula (b1), R 2 R is a linear or branched alkyl group having 8 to 18 carbon atoms or an alkenyl group having 8 to 18 carbon atoms. 3 and R 4 Each of these is independently an alkyl group or hydroxyalkyl group having 1 to 3 carbon atoms, and A is -C=O(-NH-R 5 )- represents R 5 [where p is an alkylene group with 1 to 4 carbon atoms, and p is an integer between 0 and 1.] The detergent composition contains component (B), which improves its cleaning power against oily stains.

[0029] R in equation (b1) 2 The number of carbon atoms is preferably 10 to 14, and more preferably 12 to 14. 2 Preferably, it is an alkyl group derived from oil and fat raw materials. R 3 , R 4 Each of these is independently preferably a C1-C3 alkyl group or a C1-C3 hydroxyalkyl group, more preferably a C1-C3 alkyl group, and even more preferably a methyl group. 2 and R 3 It is particularly preferable that all of them are methyl groups. p is preferably 0. Among these, lauryldimethylamine oxide and amidopropyldimethylamine oxide are more preferred from the viewpoint of uniform solubility in the formulation, and lauryldimethylamine oxide is even more preferred.

[0030] The content of component (B) is preferably 4 to 10% by mass, and more preferably 5.5 to 8% by mass, relative to the total mass of the detergent composition. When the content of component (B) is within the above range, the cleaning power against oil stains, the persistence of foam, and the low-temperature stability are good. When the content of component (B) is above the lower limit, the cleaning power against oil stains is good.

[0031] The ratio of the content of component (A) to the content of component (B), expressed as the mass ratio of component (A) / component (B) (A / B ratio), is 0.8 to 1.5, and preferably 0.8 to 1.2. When the A / B ratio is within the above range, the cleaning power against oil stains, foam persistence, and low-temperature stability are good. When the A / B ratio is above the lower limit, the foam persistence and low-temperature stability are good.

[0032] [(C) component] (C) Component is a nonionic surfactant. The detergent composition contains component (C), which improves foam retention and low-temperature stability.

[0033] (C) Examples of component (C) include polyoxyalkylene-type nonionic surfactants, alkyl polyglycosides having an alkyl group with 8 to 18 carbon atoms, sucrose fatty acid esters having a fatty acid group with 8 to 18 carbon atoms, and alkyl polyglyceryl ethers having an alkyl group with 8 to 18 carbon atoms. Among these, polyoxyalkylene-type nonionic surfactants are preferred from the viewpoint of low-temperature stability.

[0034] Examples of polyoxyalkylene-type nonionic surfactants include those represented by the following formula (c1). R 6 -O-(R 7 O) j -H···(c1) [In formula (c1), R 6R is a straight-chain or branched-chain hydrocarbon group having 8 to 18 carbon atoms. 7 The group is preferably an alkylene group or alkenylene group having 1 to 3 carbon atoms, more preferably an alkylene group, and even more preferably an ethylene group, and j is (R 7 This represents the average number of repetitions in O), and is a number between 1 and 20.

[0035] R 6 The number of carbon atoms is preferably 8 to 11. 6 This may be a saturated hydrocarbon group or an unsaturated hydrocarbon group. 6 If it is a straight chain, -O- is R 6 It may be bonded to the primary carbon of R 6 It may be bonded to the secondary carbon. 6 Branched chains or secondary hydrocarbons are preferred. 7 The number of carbon atoms is preferably 2 to 3, and more preferably 2.

[0036] j is ( R 7 This represents the average number of repetitions of the oxyalkylene group (i.e., the average number of moles of alkylene oxide added). j is more preferably between 5 and 15.

[0037] The content of component (C) is preferably 2 to 7% by mass, and more preferably 2.5 to 5% by mass, relative to the total mass of the detergent composition. When the content of component (C) is within the above range, the foam persistence and low-temperature stability are good. When the content of component (C) is above the lower limit, the foam persistence is good.

[0038] The sum of the content of component (A), component (B), and component (C) (ABC amount) is 25% by mass or less, preferably 1 to 25% by mass, more preferably 10 to 25% by mass, and even more preferably 17 to 22% by mass. When the ABC amount is within the above range, the cleaning power against oil stains, the persistence of foam, and the low-temperature stability are good. When the ABC amount is above the lower limit of the above value, the persistence of foam is good.

[0039] [Optional ingredients] The cleaning agent composition may contain other components (optional components) besides components (A) to (C). Examples of optional components include water, surfactants other than components (A), (B), and (C) (any surfactant), chelating agents, hydrotropes, preservatives, water-soluble inorganic compounds, enzymes, polymer compounds, pH adjusters, fragrances, colorants, disinfectants, antibacterial agents, antioxidants, and the like.

[0040] The water content is preferably 40 to 85% by mass, and more preferably 60 to 80% by mass, relative to the total mass of the detergent composition. If the water content is above the lower limit, gelation is suppressed and the uniformity of the liquid is improved. If the water content is below the upper limit, the cleaning power against oil stains and the persistence of foam are good.

[0041] Examples of suitable surfactants include amphoteric surfactants and cationic surfactants. Examples of amphoteric surfactants include carboxylate-type amphoteric surfactants, sulfate-type amphoteric surfactants, sulfonate-type amphoteric surfactants, and phosphate-type amphoteric surfactants. Among these, carboxylate-type amphoteric surfactants and sulfonate-type amphoteric surfactants are preferred. Examples of carboxylate-type amphoteric surfactants include betaine-type amphoteric surfactants such as lauryldimethylaminoacetic acid betaine, coconut alkyldimethylaminoacetic acid betaine, coconut oil fatty acid amidopropyl betaine, lauric acid amidopropyl dimethylaminoacetic acid betaine, coconut alkylamidopropyl dimethylaminoacetic acid betaine (cocamidopropyl betaine), and lauryldimethylsulfobetaine. Examples of sulfonate-type amphoteric surfactants include betaine-type amphoteric surfactants such as lauryl hydroxysulfobetaine. Examples of cationic surfactants include didecyldimethylammonium chloride, didecyldimethylammonium methosulfate, distearyldimethylammonium chloride, dioctyldimethylammonium chloride, distearyldihydroxyethylammonium chloride, ditallow alkyldimethylammonium chloride, di(stearoyloxyethyl)dimethylammonium chloride, di(oleoyloxyethyl)dimethylammonium chloride, di(palmitoyloxyethyl)dimethylammonium methosulfate, di(stearoyloxyisopropyl)dimethylammonium chloride, di(oleoyloxyisopropyl)dimethylammonium chloride, di(oleoyloxybutyl)dimethylammonium chloride, di(stearoyloxyethyl)methylhydroxyethylammonium methosulfate, and tri(stearoyloxyethyl)methylmethosulfate. The number of carbon atoms in the "tallow alkyl" group is 14 to 18. The total mass of the surfactant containing components (A), (B), and (C) is preferably 10 to 30% by mass, and more preferably 15 to 25% by mass, relative to the total mass of the detergent composition.

[0042] Examples of chelating agents include aminocarboxylic acid-type chelating agents, hydroxycarboxylic acid-type chelating agents, and polymer chelating agents. Examples of aminocarboxylic acid type chelating agents include ethylenediaminetetraacetic acid (EDTA), hydroxyethylenediaminetriacetic acid (HEDTA), dihydroxyethylglycine (DHEG), hydroxyethyleneiminodiacetic acid (HIDA), diethylenetriaminepentaacetic acid (DTPA), methylglycinediacetic acid (MGDA), aspartatediacetic acid (ASDA), isoserinediacetic acid (ISDA), β-alaninediacetic acid (ADAA), serinediacetic acid (SDA), glutamatediacetic acid (GLDA), and iminodiacetic acid. Examples include succinic acid (IDS), hydroxyiminodisuccinic acid (HIDS), N-lauroylethylenediaminetriacetic acid, nitrilotriacetic acid (NTA), triethylenetetraaminehexaacetic acid (TTHA), 1,3-propanediaminetetraacetic acid (PDTA), 1,3-diamino-2-hydroxypropanetetraacetic acid (DPTA-OH), glycol etherdiaminetetraacetic acid (GEDTA), dicarboxymethylglutamic acid (CMGA), (S,S)-ethylenediaminedisuccinic acid (EDDS), and salts thereof. Examples of hydroxycarboxylic acid type chelating agents include organic acids such as glycolic acid, diglycolic acid, lactic acid, tartaric acid, carboxymethyl tartaric acid, citric acid, malic acid, gluconic acid, and salts thereof, as well as their salts. Suitable polymer chelating agents include those with a weight-average molecular weight of 1000 or more. Examples include polyacrylic acid or its salts, polymethacrylic acid or its salts, acrylic acid-maleic acid copolymer or its salts, methacrylic acid-maleic acid copolymer or its salts, ethylene-maleic acid copolymer or its salts, etc. The copolymerization ratio (molar ratio) of acrylic acid to maleic acid is preferably acrylic acid / maleic acid = 75 / 25 to 50 / 50, and the preferred weight-average molecular weight is 10,000 to 100,000. The weight-average molecular weight of the polymer chelating agent is the value measured by gel permeation chromatography using sodium polyacrylate as the standard substance. The preferred form of the chelating agent is an alkali metal salt, such as a sodium salt or a potassium salt. Chelating agents may be used individually or in combination of two or more as appropriate. If the detergent composition contains a chelating agent, the chelating agent content is preferably 0.1 to 5% by mass, and more preferably 0.5 to 3% by mass, relative to the total mass of the detergent composition.

[0043] Examples of hydrotropes include monohydric alcohols and polyhydric alcohols having 2 to 4 carbon atoms, as well as aromatic carboxylic acids or aromatic sulfonic acids. For example, ethanol, n-propanol, isopropanol, n-butanol, s-butanol, t-butanol, glycerin, 3-methoxy-3-methyl-1-butanol (Solfit, trade name), propylene glycol (PG), butylene glycol, hexylene glycol, diethylene glycol, triethylene glycol, tetraethylene glycol, polyethylene glycol with a molecular weight of approximately 200 to 1000, dipropylene glycol, diethylene glycol monomethyl ether, diethylene glycol monoethyl ether, diethylene glycol monobutyl ether (butyl carbitol), diethylene glycol dimethyl ether, etc., as well as cumenesulfonic acid, toluenesulfonic acid, benzoic acid, and salts thereof. Examples of salts of aromatic carboxylic acids or aromatic sulfonic acids include sodium salts, potassium salts, ammonium salts, etc. Hydrotropes may be used individually or in combination of two or more types as appropriate. When the detergent composition contains a hydrotrope agent, the hydrotrope agent content is preferably 0.1 to 10% by mass, and more preferably 2 to 7% by mass, relative to the total mass of the detergent composition.

[0044] Examples of preservatives include isothiazolinones and their derivatives. For example, 2-methyl-4-isothiazolinone-3-one (MIT), chloromethylisothiazolinone (CMIT), 1,2-benzisothiazolinone-3-one (BIT), butylbenzisothiazolinone, octylisothiazolinone, dichlorooctylisothiazolinone, and 4-formylphenylboronic acid (4FPBA). Isothiazolinone and its derivatives may be used individually or in combination of two or more types. When the detergent composition contains isothiazolinone and its derivatives, the content of isothiazolinone and its derivatives is preferably 0.0005 to 0.02% by mass relative to the total mass of the detergent composition.

[0045] Examples of water-soluble inorganic compounds include metal oxides and metal salts. Examples of metal oxides include zinc oxide and magnesium oxide. Examples of metal salts include magnesium salts such as magnesium chloride, magnesium bromide, magnesium iodide, magnesium hydroxide, magnesium acetate, magnesium nitrate, magnesium carbonate, magnesium sulfate, and magnesium phosphate; and zinc salts such as zinc chloride, zinc bromide, zinc iodide, zinc hydroxide, zinc acetate, zinc nitrate, zinc carbonate, zinc sulfate, and zinc phosphate. When the detergent composition contains a water-soluble inorganic compound, the content of the water-soluble inorganic compound is preferably 0.01 to 1.0% by mass of the total mass of the detergent composition.

[0046] Examples of enzymes include cellulase, amylase, protease, mannanase, pullulanase, lipase, catalase, hemicellulase, β-glycosidase, glucose oxidase, and cholesterol oxidase.

[0047] Examples of polymer compounds include polysaccharide polymers, acrylic acid polymers, water-swellable clay minerals, and cationic polymers. For example, hydroxymethylcellulose, carboxymethylcellulose, pectin, methylcellulose, hydroxymethylcellulose, cationized cellulose, polyvinyl alcohol, polyvinylpyrrolidone, tragacanth gum, carrageenan, locust bean gum, dextrin, dextrin fatty acid esters, xanthan gum, guar gum, cationized guar gum, cationized starch, gelatin, sodium alginate, gum arabic, starch, smectite, polyethyleneimine, and the like. Furthermore, alkylene oxide adducts of polyalkyleneamines described in Japanese Patent Publication No. 2009-16622, modified polyethyleneimines described in U.S. Patent No. 3,642,572, U.S. Patent No. 4,144,123, U.S. Patent No. 4,371,674, etc., can be used. Polyester soil-release polymers described in International Publication No. 2012 / 136427, cleaning builders described in Japanese Patent Publication No. 2017-210748 (e.g., sodium copolymer salts of olefins and maleic acid), etc., may also be used. Polymer compounds may be used individually or in combination of two or more types.

[0048] Examples of pH adjusters include inorganic alkaline agents, organic alkaline agents, and inorganic acids. Examples of inorganic alkaline agents include sodium hydroxide, potassium hydroxide, sodium carbonate, and potassium carbonate. Examples of organic alkali agents include amine compounds such as monoethanolamine, diethanolamine, triethanolamine, N-methylpropanol, 2-amino-2-methyl-1-propanol, N-(β-aminoethyl)ethanolamine, diethylenetriamine, morpholine, and N-ethylmorpholine. Examples of inorganic acids include sulfamic acid, hydrochloric acid, and sulfuric acid. Examples of organic acids include acetic acid.

[0049] As for the fragrance, those commonly used in liquid detergents can be applied. Examples of fragrances include the blended fragrance compositions 1 to 4 described in Tables 1 to 8 of Japanese Patent Publication No. 2020-132680. Fragrances may be used individually or in combination of two or more.

[0050] The coloring agents are not particularly limited and include, for example, pigments listed in the "Handbook of Legal Pigments" (Japan Cosmetic Industry Association) and those in which water-soluble polymers, etc., have been chemically modified at the ends of the chromophore structure. The coloring agent may be used alone or in combination of two or more types.

[0051] Examples of disinfectants include zinc sulfate, zinc chloride, and zinc oxide. Disinfectants may be used individually or in combination of two or more types.

[0052] Examples of antibacterial agents include diphenyl ether antibacterial agents such as diclosan (4,4'-dichloro-2-hydroxydiphenyl ether) and triclosan (5-chloro-2-(2,4-dichlorophenoxy)phenol), cationic bactericides such as quaternary ammonium salts (benzalkonium chloride, alkyltrimethylammonium salt, dialkyldimethylammonium salt, alkylbenzyldimethylammonium salt, alkylpyridinium salt), bis-(2-pyridylthio-1-oxide)zinc, polyhexamethylene biguanidine hydrochloride, 8-oxyquinoline, and polylysine. Antimicrobial agents may be used individually or in combination of two or more types.

[0053] Examples of antioxidants include monophenol antioxidants such as dibutylhydroxytoluene and butylhydroxyanisole; bisphenol antioxidants such as 2,2'-methylenebis(4-methyl-6-t-butylphenol); and high molecular weight phenol antioxidants such as dl-α-tocopherol. Antioxidants may be used individually or in combination of two or more types.

[0054] The pH of the detergent composition of the present invention at 25°C is preferably 6 to 8. The pH (25°C) of the detergent composition is a value measured according to the method specified in JIS Z 8802:2011 "Method for Measuring pH".

[0055] The viscosity of the detergent composition of the present invention at 25°C is preferably 10 to 250 mPa·s, and more preferably 50 to 200 mPa·s. If the viscosity is above the lower limit, dripping from the container spout can be effectively suppressed. If the viscosity is below the upper limit, the detergent composition can be dispensed more easily from the container.

[0056] The viscosity of the detergent composition can be adjusted by the amount of water it contains, the addition of component (A), component (B), component (C), and other optional components. The viscosity of the detergent composition is measured at 25°C using a B-type viscometer, with rotor number No. 1 and rotor speed of 60 rpm, 60 seconds after the start of rotor rotation.

[0057] [Manufacturing method] The detergent composition of the present invention is manufactured by conventionally known manufacturing methods. One method for producing the detergent composition is to add component (A), component (B), component (C), and other components to a portion of water, mix them, adjust the pH, and then add the remainder of the water.

[0058] [How to use] Methods of using the cleaning agent composition include, for example, applying the cleaning agent composition to a cleaning tool, lathering the cleaning agent composition on the cleaning tool, and scrubbing the object to be cleaned with the lathered cleaning tool. Alternatively, the cleaning agent composition can be dissolved in water to make a cleaning solution, and the object to be cleaned can be immersed in the cleaning solution while scrubbing it with a cleaning tool. In either method, the object to be cleaned is rinsed with water after scrubbing, and then the water is drained from the object. Examples of cleaning tools include single-layer sponges, scrubbing sponges, and mesh sponges. Examples of items to be washed include ceramics, metal utensils, plastic utensils, and glass utensils. Examples of ceramics include dishes such as plates, bowls, and donburi bowls. Examples of metal utensils include dishes such as forks and spoons, and stainless steel sinks. Examples of plastic utensils include polypropylene plates, bowls, donburi bowls, forks, spoons, cups, water bottles, and mugs. Examples of glass utensils include dishes such as plates and cups. In addition to the dishes mentioned above, other items to be washed include, for example, pots, knives, cutting boards, airtight containers for storing food, cooking utensils such as frying pans, and kitchen appliances such as ranges and stoves. [Examples]

[0059] The present invention will be described in more detail below using examples, but the present invention is not limited to these examples. In these examples, "%" refers to "mass%" unless otherwise specified. The composition of the detergent compositions for each example is shown in Table 2. The raw materials used in this embodiment are as follows:

[0060] [(A) component] AES: Sodium salt of polyoxyethylene (1) linear alkyl (C12 / 14=75 / 25; derived from natural oils and fats) ether sulfate, (synthesized by the following synthesis method). AOS: Sodium α-olefin sulfonate with 14-16 carbon atoms (manufactured by Lion Specialty Chemicals Co., Ltd., product name "Lipolan (registered trademark) LB-440"). LAS: Sodium linear alkylbenzene sulfonate with 10 to 14 carbon atoms (product name "Teika Power (registered trademark) L121" manufactured by Teika Co., Ltd., neutralized with sodium hydroxide).

[0061] [Method for synthesizing AES] In a 4L autoclave, 400g of Procter & Gamble's "CO1270 alcohol (C12 / C14=75% / 25%, mass ratio)" as the raw material alcohol and 0.8g of potassium hydroxide as the reaction catalyst were charged. After purging the autoclave with nitrogen, the temperature was increased while stirring. Subsequently, while maintaining the temperature at 180°C and the pressure at 0.3 MPa or less, 91g of ethylene oxide was introduced and the reaction was carried out. The average number of ethylene oxide added to the resulting polyoxyalkylene ether was 1. Next, 237 g of the obtained polyoxyalkylene ether ethylene oxide was placed in a 500 mL flask equipped with a stirrer, and after purging with nitrogen, 96 g of liquid anhydrous sulfuric acid (sulfan) was slowly added dropwise while maintaining the reaction temperature at 40°C. After the addition was complete, stirring was continued for 1 hour (sulfation reaction) to obtain polyoxyethylene alkyl ether sulfate. Next, the obtained polyoxyethylene alkyl ether sulfate was neutralized with an aqueous sodium hydroxide solution to obtain AES.

[0062] [(B) Component] AX: Lauryldimethylamine oxide (manufactured by Lion Specialty Chemicals Co., Ltd., "KadenaX DM12D-W").

[0063] [(C) component] AE-1: 2-Propylheptyl alcohol ethoxylate (C10, EO10, BASF "Lutensol XP-100"). AE-2: Ethoxylated isoalcohol (C=9~11, EO9, BASF "Lutensol NE-9")

[0064] [Common ingredients] pTS acid: Manufactured by Kanto Chemical Co., Ltd., "paratoluenesulfonic acid". Citric acid: Manufactured by Fuso Chemical Industry Co., Ltd., "Citric Acid". Ethanol: Manufactured by Nippon Alcohol Sales Co., Ltd., "Ethanol". PEI: BASF polyethyleneimine, "Lupasol SK", weight-average molecular weight 2,000,000. MIT: Methylisothiazolinone, manufactured by Kanto Chemical Co., Ltd. Fragrance: Blended fragrances listed in Table 1 (the values ​​in the table represent mass %), and unless otherwise specified, the pure fraction (This indicates the mass percentage.) pH adjuster: Kanto Chemical Co., Ltd., "Sodium Hydroxide, Special Grade" (used at a concentration of 1N).

[0065] [Table 1] JPEG2026093499000002.jpg165114 JPEG2026093499000003.jpg174119 JPEG2026093499000004.jpg169116 JPEG2026093499000005.jpg201134 JPEG2026093499000006.jpg211137 JPEG2026093499000007.jpg138128

[0066] [Other optional components] Sodium benzoate: Sodium benzoate, manufactured by Fushimi Pharmaceutical Co., Ltd., "Sodium benzoate". Sodium lactate: Sodium lactate, manufactured by Corbion Japan Co., Ltd., "Fermented Sodium Lactate 60% (S / HQ60)". MGDA: Trisodium methylglycine diacetate, manufactured by BASF, "Trilon M Max BioBased L". GLDA, tetrasodium glutamate diacetate, manufactured by Nourion, "Dissolvine GL-47-S". EDTA: Tetrasodium ethylenediaminetetraacetate, manufactured by BASF, "Trilon BX Liquid". Cationized cellulose: Cationized cellulose, manufactured by Dow Chemical Company, "UCAREJR 125," is a compound with a quaternary nitrogen content of 1.9% by mass and a viscosity of 130 mPa·s in a 2.0% by mass aqueous solution at 25°C. Zinc oxide: Manufactured by Mitsui Mining & Smelting Co., Ltd., "Zinc Oxide". MedleyCore: A mixture of amylase and protease (amylase / protease), manufactured by Novozymes, "MedleyCore 210L" Catalase: "Terminox Ultra 50L" manufactured by Novozymes Corporation. BIT: 1,2-Benzisothiazolin-3-one, manufactured by Clariant Japan, "NIPACIDE BIT20". Green No. 3: Manufactured by Kisimi Kasei Co., Ltd., "Green No. 3".

[0067] [Examples 1-12, Comparative Examples 1 and 2] According to the formulations shown in Table 2, components (A) to (C) and other components were added to water and mixed, and the pH was adjusted to the values ​​shown in the table with a pH adjuster to obtain the detergent compositions for each example. The composition (components and their content (mass%)) of the obtained detergent compositions is shown in the table. Unless otherwise specified, mass percent indicates the purity. If there are blank spaces in the table for a particular ingredient, that ingredient is not included. The water content is the amount that makes the total amount (mass percent) of all ingredients in the detergent composition equal to 100% by mass.

[0068] [Method for evaluating detergent compositions] For each example of the detergent composition, the oil-cleaning power, foam persistence, and low-temperature stability were evaluated as follows. The evaluation results are shown in Table 2.

[0069] [Evaluation of oil-cleaning power] A dishwashing sponge (manufactured by Sumitomo 3M Co., Ltd., Scotch-Brite® (product name)) was mixed with 38g of 25°C tap water and 2g of each liquid detergent, and rubbed 10 times by hand. Using this sponge, the inside bottom of a polypropylene food container (manufactured by Iwasaki Industries Co., Ltd., NEO Keeper M (product name), 870mL, 127mm x 179mm x 55mm), which had 1g of beef tallow evenly spread on its entire inner surface, was washed by hand scrubbing 10 times, each inner side 10 times, and each of the four corners 5 times. The above evaluation was performed 5 times, and after rinsing with tap water, a sensory evaluation was performed by touching the condition of the inner surface of the food container and the amount of oil remaining on the sponge, and the following scores were assigned to evaluate the cleaning power based on the evaluation criteria below. [Score for oil-cleaning power] 5 points: No matter which part of the food container you touch, there is absolutely no oily residue, and you can't feel any oiliness on the sponge either. 4+ points: There is some oil residue on the sides and corners of the food container, but no oil residue is felt on the sponge. 4 points: There is a greasy residue on the sides or corners of the food container due to oil residue, but no oil residue is felt on the sponge. 3 points: The entire inside surface of the food container feels greasy due to residual oil, but there is no oily residue on the sponge. Points 2: A slimy feeling due to residual oil was felt on the entire inside surface of the food container, and oil residue was visually observed covering more than 0% but less than 50% of the sponge's surface area. 1 point: A slimy feeling due to residual oil was felt on the entire inside surface of the food container, and oil residue was visually observed covering more than 50% but less than 100% of the sponge's surface area. [Evaluation Criteria for Oil Cleaning Power] 5 points: 5 out of 5 food containers that score 4 points or higher. 4 points: 4 out of 5 food containers scored 4 points or higher. 3 points: 3 out of 5 food containers that score 4 points or higher 2 points: 2 out of 5 food containers that score 4 points or more 1 point: 1 out of 5 food containers that score 4 points or more

[0070] [Evaluation of foam persistence] A dish (21 cm in diameter) containing 1 g of olive oil and 5 g of water was prepared as a model oil stain dish, and 30 of these dishes were made. 38 g of 25°C tap water and 2 g of each detergent composition were placed on a dishwashing sponge (Scotch-Brite, manufactured by Sumitomo 3M Co., Ltd.) measuring 11.5 cm (length) x 7.5 cm (width) x 3 cm (height). The sponge was then kneaded three times by hand before being brought into contact with the model oil stain dish to allow the model oil stain and sponge to blend. The dishwashing sponge was then pressed against the model oil stain dish and scrubbed in a circular motion 10 times. The dishwashing sponge was then continuously scrubbed without adding more tap water or dishwashing detergent until no foam remained (or could be seen) on the model oil stain dish after scrubbing. Next, the foam present in each model oil stain tray after scrubbing (washing) was transferred to a 10 mL graduated cylinder, and the amount of foam (mL) was measured for each tray and evaluated based on the following evaluation criteria. [Evaluation criteria for foam persistence] ◎: At least 14 plates were found to have a foam volume of 5 mL or more after washing. ○: After washing, 12 to 13 plates showed a foam volume of 5 mL or more. △: After washing, 10 to 11 plates showed a foam volume of 5 mL or more. ×: The number of dishes in which a foam volume of 5 mL or more was confirmed after washing was 9 or less.

[0071] [Evaluation of low-temperature stability] 100 ml of the cleaning agent composition was filled into a cylindrical glass bottle measuring 50 mm in diameter and 100 mm in height, and the lid was closed to seal it. After storing it in a -5°C constant temperature bath for one month, the appearance of the cleaning composition was observed visually and evaluated based on the following evaluation criteria. [Criteria for evaluating low-temperature stability] ○: After 1 month of storage, it remained transparent and uniform. ×: After 1 month of storage, phase separation or precipitates were observed.

[0072] [Table 2]

[0073] [Prescription Examples 1-35] According to the formulations shown in Tables 3-5, components (A) to (C) and other components were added to water and mixed, and the pH was adjusted to the values ​​shown in the table with a pH adjuster to obtain the detergent compositions for each example. The composition (components and their content (mass%)) of the obtained detergent compositions is shown in the table. Unless otherwise specified, mass percent indicates the purity. If there are blank spaces in the table for a particular ingredient, that ingredient is not included. The water content is the amount that makes the total amount (mass percent) of all ingredients in the detergent composition equal to 100% by mass.

[0074] [Table 3]

[0075] [Table 4]

[0076] [Table 5]

Claims

1. (A) Components: An anionic surfactant containing one or more selected from the following components (A-1) and (A-2), (A-1) Ingredient: Sulfate ester type anionic surfactant (A-2) Ingredient: Sulfonate-type anionic surfactant (B) Component: Amine oxide type surfactant, (C) Ingredients: Nonionic surfactant, A dishwashing detergent composition comprising the above, wherein the total content of component (A), component (B), and component (C) relative to the total mass of the dishwashing detergent composition is 25% by mass or less. The mass ratio expressed as component (A) / component (B) is 0.8 to 1.

5. A dishwashing detergent composition.

2. The dishwashing detergent composition according to claim 1, wherein the mass ratio of component (A-1) to component (A-2) with respect to the total mass of the dishwashing detergent composition is 0.5 to 15.

3. The dishwashing detergent composition according to claim 1 or 2, wherein the (A-2) component is an α-olefin sulfonate.

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