Dishwasher detergent composition

Abstract

To provide a dishwasher detergent composition which has excellent foam suppression properties, excellent cleaning ability for protein-lipid composite stains under acidic stain coexistence and can also, prevent whitening of the inside of the dishwasher during prolonged washing.SOLUTION: There is provided a dishwasher detergent composition comprising a component (a1): at least one selected from a group consisting of compounds represented by a formula (a1), a component (a2): at least one selected from a group consisting of a compound represented by a formula (a2-1) and a compound represented by a formula (a2-2) and a component (b): a chelating agent. In the formula, R1, R2 and R4 independently represent a linear or branched chain alkyl group having a carbon number of 8 to 18 or a linear or branched-chain alkenyl group having a carbon number of 8 to 18, AO represents an oxyalkylene group, m and n each independently represent a number of 0 to 10 representing an average repeating number of AO and Ma, Mb, Mc and Md each independently represent a counter ion.SELECTED DRAWING: None

Description

[Technical field]

[0001] The present invention relates to a dishwasher detergent composition. [Background technology]

[0002] In general, a dedicated detergent (a detergent composition for dishwashers) is used for cleaning with a dishwasher. A detergent composition for dishwashers is required to have both low foaming (foam suppression) and cleaning power. Patent Document 1 discloses a detergent composition for dishwashers that contains an amidoamine and an anionic surfactant and has excellent foam suppression and cleaning power for oily stains. Patent Document 2 discloses a detergent composition for dishwashers that contains an amidoamine, an alkylbenzenesulfonic acid, a chelating agent, and a silicone compound and has excellent foam suppression and cleaning power for protein stains. Patent Document 3 discloses a detergent composition for dishwashers that contains a branched alkyl sulfosuccinate ester in which the branched alkyl group has 9 to 11 carbon atoms and an inorganic alkali agent and has excellent foam suppression and cleaning power for complex stains containing proteins and lipids. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] JP 2015-10186 A [Patent Document 2] Patent Publication No. 2021-4333 [Patent Document 3] JP 2022-100664 A Summary of the Invention [Problem to be solved by the invention]

[0004] However, the dishwasher detergent compositions of Patent Documents 1 to 3 do not have sufficient cleaning power for complex stains containing proteins and lipids (protein-lipid complex stains) in the coexistence of acidic stains such as dressing stains and tomato juice stains.

[0005] On the other hand, surfactants having a carboxylic acid end group are known to have a defoaming function. However, when a detergent composition containing a surfactant having a carboxylic acid end group is used in a dishwasher, the inside of the washing chamber of the dishwasher gradually becomes white with repeated washing, and therefore, at present, such surfactants are not used in detergent compositions for dishwashers.

[0006] The present invention has been made in consideration of the above circumstances, and aims to provide a detergent composition for dishwashers which has excellent foam-inhibiting properties and excellent cleaning power for complex protein and lipid stains in the presence of acidic stains, and which can prevent whitening inside the dishwasher even after long-term cleaning. [Means for solving the problem]

[0007] The present invention has the following aspects. [1] Component (a1): at least one compound selected from the group consisting of compounds represented by the following formula (a1): Component (a2): at least one selected from the group consisting of compounds represented by the following formula (a2-1) and compounds represented by the following formula (a2-2), (b) component: a chelating agent; A dishwasher cleaning composition comprising: [ka] In the formula, R 1 , R 2 and R 4 each independently represents a linear or branched alkyl group having 8 to 18 carbon atoms or a linear or branched alkenyl group having 8 to 18 carbon atoms; R 3 is a linear or branched alkylene group having 1 to 3 carbon atoms, AO is an oxyalkylene group, m and n each independently represent the average repetition number of AO and are numbers of 0 to 10, and Ma, Mb, Mc, and Md each independently represent a counter ion. [2] Component (c): The dishwasher detergent composition according to [1], comprising a polyol. [3] The dishwasher detergent composition according to [2], wherein the component (c) is at least one member selected from the group consisting of propylene oxide adducts of trihydric to hexahydric alcohols, propylene glycol, and polyethylene glycols having a number average molecular weight of 250 to 2,000. [4] The dishwasher detergent composition according to any one of [1] to [3], wherein the mass ratio of the component (a1) / the component (a2) is 0.3 to 200. Effect of the Invention

[0008] According to the present invention, it is possible to provide a detergent composition for dishwashers which has excellent foam-inhibiting properties and cleaning power for complex protein and lipid stains in the presence of acidic stains, and which can prevent whitening inside the dishwasher even after long-term cleaning. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0009] The dishwasher detergent composition of the present invention (hereinafter also simply referred to as "detergent composition") contains the component (a1), the component (a2), and the component (b). The cleaning composition may further contain a component (c). The cleaning composition may further contain other components (hereinafter also referred to as "optional components") other than the components (a1), (a2), (b) and (c).

[0010] <Component (a1)> The component (a1) is at least one selected from the group consisting of compounds represented by the following formula (a1): The component (a1) can also be said to be at least one selected from the group consisting of monoalkylsulfosuccinic acids having a linear or branched alkyl group having 8 to 18 carbon atoms, which may have 10 moles or less of alkylene oxide added thereto, and salts thereof, and monoalkenylsulfosuccinic acids having a linear or branched alkenyl group having 8 to 18 carbon atoms, which may have 10 moles or less of alkylene oxide added thereto, and salts thereof.

[0011] [ka] In the formula, R1 represents a linear or branched alkyl group having 8 to 18 carbon atoms or a linear or branched alkenyl group having 8 to 18 carbon atoms, AO represents an oxyalkylene group, m represents the average number of repetitions of AO and is a number of 0 to 10, and Ma and Mb each independently represent a counter ion.

[0012] In formula (a1), R 1 R is a linear or branched alkyl group having 8 to 18 carbon atoms or a linear or branched alkenyl group having 8 to 18 carbon atoms. 1 When the carbon number of R is 8 to 18, it is easy to improve the foam suppression property and cleaning power, and it is easy to prevent whitening inside the cabinet. 1 The number of carbon atoms is preferably 10 to 18, and more preferably 12 to 16.

[0013] In formula (a1), AO is an oxyalkylene group. Examples of the oxyalkylene group include an oxyethylene group, an oxypropylene group, and an oxybutylene group. Among these, an oxyethylene group is preferred. In formula (a1), m represents the average number of repetitions of AO and is a number from 0 to 10. When m is from 0 to 10, it is easy to improve the foam-inhibiting property and cleaning power, and it is easy to prevent whitening inside the cabinet. m is preferably from 0 to 4, more preferably from 3 to 4, and particularly preferably 4.

[0014] In formula (a1), Ma and Mb are each independently a counter ion. Examples of counter ions include hydrogen ions and ions capable of forming water-soluble salts. Among these, ions capable of forming water-soluble salts are preferred. Examples of ions capable of forming water-soluble salts include alkali metal ions such as sodium ions and potassium ions, alkaline earth metal ions such as calcium ions and magnesium ions, ammonium ions, and protonated ethanolamines. Among these, alkali metal ions are preferred, sodium ions and potassium ions are more preferred, and sodium ions are particularly preferred, from the viewpoints of improving foam suppression and cleaning power, and preventing whitening inside the cabinet. Ma and Mb may be the same type of counter ion or different types of counter ions, but are preferably the same type of counter ion. In addition, when Ma is a counter ion with a valence of 2 or more, Ma is considered to be bonded to -O with a number multiplied by 1 / valence. For example, when Ma is a magnesium ion, the number of Ma is 1 / 2. Similarly, when Mb is a counter ion with a valence of 2 or more, Mb is considered to be bonded to -SO3 with a number multiplied by 1 / valence.

[0015] As the component (a1), monoalkyl sulfosuccinate is preferred. When m is 0, for example, disodium monolauryl sulfosuccinate is preferred. When m is 1 or more, for example, polyoxyethylene monoalkyl sulfosuccinate is preferred. Specific examples of polyoxyethylene monoalkyl sulfosuccinate are polyoxyethylene (1) monoalkyl (C12-14) disodium sulfosuccinate, polyoxyethylene (2) monoalkyl (C12-14) disodium sulfosuccinate, polyoxyethylene (2) monolauryl disodium sulfosuccinate, polyoxyethylene (2) monoalkyl (C12-14) sulfosuccinate di-triethanolamine, polyoxyethylene (3) monoalkyl (C12-14) disodium sulfosuccinate, polyoxyethylene (3) monolauryl disodium sulfosuccinate, polyoxyethylene (3) magnesium monolauryl sulfosuccinate, polyoxyethylene (3) monococonut oil fatty acid (C8-1 8) Disodium sulfosuccinate, polyoxyethylene (5) monoalkyl (carbon number 12-14) disodium sulfosuccinate, polyoxyethylene (5) monococonut oil fatty acid (carbon number 8-18) disodium sulfosuccinate, polyoxyethylene (5) monolauryl sulfosuccinate diethanolamide, polyoxyethylene (5) lauryl sulfosuccinate magnesium, polyoxyethylene (5) monococonut oil fatty acid (carbon number 8-18) disodium sulfosuccinate, polyoxyethylene (5) lauroylethanolamide disodium sulfosuccinate, polyoxyethylene (7) monoalkyl (carbon number 12-14) disodium sulfosuccinate, polyoxyethylene (7) monolauryl sulfosuccinate magnesium. The number in parentheses after polyoxyethylene indicates the average number of repeats of the oxyethylene group.

[0016] The content of the (a1) component is preferably 0.1 to 10 mass%, more preferably 1 to 4 mass%, and even more preferably 1.5 to 3 mass%, based on the total mass of the detergent composition. When the content of the (a1) component is equal to or more than the lower limit, the cleaning power is easily improved and whitening inside the cabinet is easily prevented. When the content of the (a1) component is equal to or less than the upper limit, the foam suppression property is easily improved.

[0017] <(a2) component> The component (a2) is at least one selected from the group consisting of compounds represented by the following formula (a2-1) and compounds represented by the following formula (a2-2). The component (a2) has a carboxylic acid end group and thus has an antifoaming function.

[0018] [ka]

[0019] In the formula, R 2 and R 4 each independently represents a linear or branched alkyl group having 8 to 18 carbon atoms or a linear or branched alkenyl group having 8 to 18 carbon atoms; R 3 is a linear or branched alkylene group having 1 to 3 carbon atoms, AO is an oxyalkylene group, n is a number of 0 to 10 indicating the average number of repetitions of AO, and Mc and Md are each independently a counter ion.

[0020] In formula (a2-1), R 2 R is a linear or branched alkyl group having 8 to 18 carbon atoms or a linear or branched alkenyl group having 8 to 18 carbon atoms. 2 When the carbon number of R is 8 to 18, it is easy to improve the foam suppression property and to prevent whitening inside the oven. 2 The number of carbon atoms in the alkyl group is preferably 12 to 18, and when n is 0, it is more preferably 14 to 16, and particularly preferably 16; and when n is other than 0, it is more preferably 12 to 16, and particularly preferably 12 to 14. In formula (a2-1), R 3 R is a linear or branched alkylene group having 1 to 3 carbon atoms. 3 The carbon number of is preferably 1 to 2.

[0021] In formula (a2-1), AO is an oxyalkylene group. Examples of the oxyalkylene group include the same as those mentioned above. In formula (a2-1), n ​​is a number from 0 to 10 that indicates the average number of repetitions of AO. When n is 0 to 10, it is easy to improve the foam suppressing property and to prevent whitening inside the oven. n is preferably 0 to 9, and R 2 When the carbon number of R is 16 to 18, R is more preferably 0 to 4, and particularly preferably 0. 2 When the number of carbon atoms is 8 to 14, it is more preferably 3 to 5, and particularly preferably 3.

[0022] In formula (a2-1), Mc is a counter ion. Examples of the counter ion include the same as Ma and Mb. Among them, from the viewpoint of improving foaming suppression and preventing whitening inside the cabinet, an alkali metal ion is preferable, a sodium ion and a potassium ion are more preferable, and a sodium ion is particularly preferable. When Mc is a counter ion with a valency of 2 or more, Mc is considered to be bonded to -O at a number obtained by multiplying Mc by 1 / valency.

[0023] The compound represented by formula (a2-1) is preferably an alkyl ether carboxylate. When n is 0, for example, lauryl ether carboxylate is preferred. When n is 1 or more, for example, polyoxyethylene alkyl ether carboxylate is preferred. Specific examples of polyoxyethylene alkyl ether carboxylate include polyoxyethylene (3) sodium lauryl ether acetate, polyoxyethylene (5) sodium lauryl ether acetate, and polyoxyethylene (9) sodium lauryl ether acetate. The number in parentheses after polyoxyethylene indicates the average number of repeats of the oxyethylene group.

[0024] In formula (a2-2), R 4 R is a linear or branched alkyl group having 8 to 18 carbon atoms or a linear or branched alkenyl group having 8 to 18 carbon atoms. 4 When the carbon number of R is 8 to 18, it is easy to improve the foam suppression property and to prevent whitening inside the oven. 4 The number of carbon atoms is preferably 12 to 18, more preferably 14 to 16, and particularly preferably 16.

[0025] In formula (a2-2), Md is a counter ion. Examples of the counter ion include the same as Ma and Mb. Among them, from the viewpoint of foam suppression and prevention of whitening inside the cabinet, alkali metal ions are preferred, sodium ions and potassium ions are more preferred, and sodium ions are particularly preferred. When Md is a divalent or higher valent counter ion, Md is considered to be bonded to -O at a number obtained by multiplying Md by 1 / valence.

[0026] Examples of the compound represented by formula (a2-2) include caprylate, caprate, laurate, myristate, palmitate, stearate, and oleate. Among these, laurate, myristate, palmitate, and stearate are preferred, and palmitate is more preferred.

[0027] The content of the (a2) component is preferably 0.01 to 1 mass%, more preferably 0.01 to 0.5 mass%, further preferably 0.05 to 0.3 mass%, and particularly preferably 0.1 to 0.2 mass%, based on the total mass of the detergent composition. When the content of the (a2) component is equal to or more than the above lower limit, the foam suppression property is easily improved. When the content of the (a2) component is equal to or less than the above upper limit, the foam suppression property is easily improved and whitening inside the cabinet is easily prevented.

[0028] In the detergent composition, the mass ratio of component (a1) / component (a2) (hereinafter also referred to as "a1 / a2 ratio") is preferably 0.3 to 200, more preferably 1 to 200, further preferably 3 to 200, and particularly preferably 15 to 30. When the a1 / a2 ratio is equal to or more than the above lower limit, it is easy to improve the foam-inhibiting property and cleaning power, and it is easy to prevent whitening inside the cabinet. When the a1 / a2 ratio is equal to or less than the above upper limit, it is easy to improve the foam-inhibiting property and cleaning power.

[0029] <(b) Component> Component (b) is a chelating agent. As the component (b), any of the general chelating agents that have been used in dishwasher detergent compositions can be used, including, for example, polymeric chelating agents and low molecular weight chelating agents.

[0030] The polymer chelating agent is preferably one having a weight average molecular weight of 1,000 or more. Examples of the polymeric chelating agent include polyacrylic acid, polymethacrylic acid, acrylic acid-maleic acid copolymer, methacrylic acid-maleic acid copolymer, ethylene-maleic acid copolymer, and salts thereof. The salt constituting the polymeric chelating agent is preferably an alkali metal salt, and more preferably a sodium salt or a potassium salt. Among these, the polymer chelating agent is preferably an acrylic acid-maleic acid copolymer or a salt thereof. The copolymerization ratio (molar ratio) of acrylic acid to maleic acid is preferably acrylic acid / maleic acid=75 / 25 to 50 / 50, and the weight average molecular weight is preferably 10,000 or more and 100,000 or less. The weight average molecular weight of the polymer chelating agent is a value measured by gel permeation chromatography using sodium polyacrylate as a standard substance.

[0031] From the viewpoint of improving the cleaning power and preventing whitening inside the cabinet, the low molecular weight chelating agent is preferably a chelating agent having a molecular weight of 800 or less. The molecular weight of the low molecular weight chelating agent is preferably 100 or more and 800 or less, and more preferably 150 or more and 500 or less. Examples of low molecular weight chelating agents include ethylenediaminetetraacetic acid, nitrilotriacetic acid, β-alanine diacetic acid, ethylenediamine disuccinic acid, L-aspartic acid-N,N-diacetic acid, dihydroxyethylethylenediaminediacetic acid, hydroxyethyliminodiacetic acid, citric acid, hydroxyethylethylenediaminetriacetic acid, glycol ether diamine tetraacetic acid, L-glutamic acid diacetic acid, 1,3-diamino-2-hydroxypropanetetraacetic acid, diethylenetriaminepentaacetic acid, triethylenetetraminehexaacetic acid, dihydroxyethylglycine, 3-hydroxy-2,2'-iminodisuccinic acid, serine diacetic acid, asparagine diacetic acid, methylglycine diacetic acid, hydroxyethanediphosphonic acid, aminotrimethylenephosphonic acid, tripolyphosphoric acid, and salts thereof. As the salt constituting the low molecular weight chelating agent, an alkali metal salt is preferable, and a sodium salt or a potassium salt is more preferable. Among these, the low molecular weight chelating agent is preferably at least one selected from the group consisting of citric acid and its salts, ethylenediaminetetraacetic acid and its salts, glutamic acid diacetic acid and its salts, and methylglycine diacetic acid and its salts, and particularly preferably sodium citrate.

[0032] The component (b) may be used alone or in combination of two or more types. As component (b), from the viewpoints of foam suppression, improved cleaning power, and prevention of whitening inside the cabinet, a low molecular weight chelating agent is preferred.

[0033] The content of the (b) component is preferably 5 to 20 mass%, more preferably 10 to 20 mass%, and even more preferably 12 to 18 mass%, based on the total mass of the detergent composition. When the content of the (b) component is equal to or more than the above lower limit, whitening inside the cabinet is easily prevented. When the content of the (b) component is equal to or less than the above upper limit, the foam suppressing property is easily improved.

[0034] <(c) component> Component (c) is a polyol.

[0035] The molecular weight of component (c) is preferably 4000 or less. When the molecular weight of component (c) is 4000 or less, it is easy to improve the foam suppression property and cleaning power, and it is easy to prevent whitening inside the cabinet. The molecular weight of component (c) is preferably 2000 or less, more preferably 1000 or less. The lower limit of the molecular weight of component (c) is not particularly limited, but is, for example, 60 or more.

[0036] Examples of the component (c) include propylene oxide adducts of trihydric to hexahydric alcohols, compounds represented by the following formula (c-2), compounds represented by the following formula (c-3), monosaccharides and derivatives thereof, and sugar alcohols. HO-(CH2CH2O) s -(CH2CH(CH3)O) t -H (c-2) R 6 -O-(CH2CH2O) p -(CH2CH(CH3)O) q -H (c-3) In the formula, s is 0 or more, t is 0 or more, s+t is 1 or more, and R 6 represents a linear or branched alkyl group having 1 to 4 carbon atoms or a linear or branched alkenyl group having 1 to 4 carbon atoms, p is 0 or more, q is 0 or more, and p+q is 1 or more.

[0037] Examples of the tri- to hexahydric alcohol in the propylene oxide adduct of a tri- to hexahydric alcohol include glycerin, polyglycerin, trimethylolpropane, pentaerythritol, and sorbitol. Examples of the propylene oxide adduct of a trihydric to hexahydric alcohol include triol-, tetraol-, pentaol-, or hexaol-type polypropylene glycols, etc. Among these, from the viewpoints of foam suppression, improvement of cleaning power, and prevention of whitening inside the cabinet, triol-type polypropylene glycols are preferred, propylene oxide adducts of glycerin are more preferred, and a compound represented by the following formula (c-1) is particularly preferred.

[0038] [ka] In the formula, PO is an oxypropylene group, and a, b and c each independently represent the average repetition number of PO and are numbers from 10 to 350.

[0039] The weight average molecular weight of the propylene oxide adduct of a trihydric to hexahydric alcohol is preferably 200 or more, more preferably 250 or more, and is preferably 4000 or less, more preferably 2000 or less, and even more preferably 1000 or less. The above lower limit and the above upper limit can be appropriately combined. When the weight average molecular weight of the propylene oxide adduct is the above lower limit or more, whitening inside the cabinet is easily prevented. When the weight average molecular weight of the propylene oxide adduct is the above upper limit or less, foam suppression and cleaning power are easily improved. The weight average molecular weight of the propylene oxide adduct of trihydric to hexahydric alcohols is a value measured by gel permeation chromatography using polypropylene glycol (weight average molecular weights: 800, 1200, 2000, 4000) as a standard substance.

[0040] The propylene oxide adduct of the trihydric to hexahydric alcohol can be produced by addition polymerization of propylene oxide to the trihydric to hexahydric alcohol. In this case, the amount of propylene oxide to be added to the alcohol can be adjusted to produce a propylene oxide adduct having a desired weight average molecular weight.

[0041] In the formula (c-2), s is 0 or more, and preferably 0 to 3. t is 0 or more, and is preferably 1 to 3. s+t is 1 or more, and is preferably 1 to 6.

[0042] Examples of the compound represented by formula (c-2) include propylene glycol, dipropylene glycol, tripropylene glycol, ethylene glycol, diethylene glycol, and polyethylene glycol. The number average molecular weight of the polyethylene glycol is preferably 200 or more, more preferably 250 or more, and is preferably 4000 or less, more preferably 2000 or less, and even more preferably 1000 or less. The above lower limit and the above upper limit can be appropriately combined. When the number average molecular weight of the polyethylene glycol is the above lower limit or more, whitening inside the cabinet is easily prevented. When the number average molecular weight of the polyethylene glycol is the above upper limit or less, foam suppression and cleaning power are easily improved.

[0043] In formula (c-3), R 6 R is a linear or branched alkyl group having 1 to 4 carbon atoms or a linear or branched alkenyl group having 1 to 4 carbon atoms. 6 The number of carbon atoms is preferably 2 to 4, and more preferably 4. p is 0 or more, and preferably 0 to 3. q is 0 or more, and preferably 0 to 3. p+q is 1 or more, and preferably 1 to 5.

[0044] Examples of the compound represented by formula (c-3) include propylene glycol monomethyl ether, dipropylene glycol monomethyl ether, diethylene glycol monoethyl ether, propylene glycol monoethyl ether, diethylene glycol monopropyl ether, propylene glycol monopropyl ether, diethylene glycol monobutyl ether, and propylene glycol monobutyl ether.

[0045] Examples of monosaccharides include hexoses such as glucose and fructose; and pentoses such as ribose and xylulose. Examples of the derivatives of monosaccharides include ethers of the above-mentioned monosaccharides with alcohols having 1 to 5 carbon atoms. Examples of sugar alcohols include glycerin, sorbitol, erythritol, xylitol, and mannitol.

[0046] The component (c) may be used alone or in combination of two or more types. As the (c) component, from the viewpoints of improving foam suppression properties, cleaning power, and preventing whitening inside the cabinet, at least one selected from the group consisting of propylene oxide adducts of trihydric to hexahydric alcohols, propylene glycol, and polyethylene glycols having a number average molecular weight of 250 to 2000 is preferred, and propylene glycol is particularly preferred.

[0047] The content of the (c) component is preferably 0.5 to 15 mass%, more preferably 1 to 10 mass%, and even more preferably 2 to 5 mass%, based on the total mass of the detergent composition. When the content of the (c) component is equal to or more than the lower limit, whitening inside the cabinet is easily prevented. When the content of the (c) component is equal to or less than the upper limit, cleaning power is easily improved.

[0048] <Optional ingredients> The dishwashing detergent composition of the present invention may contain any component that is usually contained in a detergent for washing dishes, so long as it does not go against the object of the present invention. For example, substances that are usually used in dishwashing detergent compositions, such as surfactants other than the components (a1) and (a2), enzymes, silicone-based antifoaming agents, stabilizers, thickeners, solvents, plant extracts, oil absorbents, dish protectants, colorants, hydrotropes (excluding the component (c)), antioxidants, pH adjusters, fragrances, and bleaches, may be used.

[0049] Examples of amidoamine surfactants include compounds represented by formula (a-1) described in JP 2021-4333 A. Specific examples of amidoamine surfactants include dimethylaminoethyl myristate, diethylaminoethyl myristate, dipropylaminoethyl myristate, dimethylaminopropyl myristate, diethylaminopropyl myristate, dipropylaminopropyl myristate, dimethylaminoethyl palmitate, diethylaminoethyl palmitate, dipropylaminoethyl palmitate, dimethylaminopropyl palmitate, diethylaminopropyl palmitate, dipropylaminopropyl palmitate, dimethylaminoethyl stearate, diethylaminoethyl stearate, dipropylaminoethyl stearate, dimethylaminopropyl stearate, diethylaminopropyl stearate, dipropylaminopropyl stearate, dimethylaminoethyl arachidate, diethylaminoethyl arachidate, dipropylaminoethyl arachidate, dimethylaminopropyl arachidate, dipropylaminoethyl arachidate, dimethylaminopropyl arachidate, diethylaminoethyl arachidate, dimethylaminopropyl arachidate, dipropylaminopropyl arachidate, dimethylaminoethyl arachidate, diethylaminoethyl arachidate, dimethylaminopropyl arachidate, dipropylaminoethyl arachidate, dimethylaminopropyl ... amide, arachidic acid diethylaminopropylamide, arachidic acid dipropylaminopropylamide, behenic acid dimethylaminoethylamide, behenic acid diethylaminoethylamide, behenic acid dipropylaminoethylamide, behenic acid dimethylaminopropylamide, behenic acid diethylaminopropylamide, behenic acid dipropylaminopropylamide, myristic acid dimethylaminoethylmethylamide, palmitic acid dimethylaminoethylmethylamide, stearic acid dimethylaminoethylmethylamide, arachidic acid dimethylaminoethylmethylamide, behenic acid dimethylaminoethylmethylamide, myristic acid dimethylaminopropylmethylamide, palmitic acid dimethylaminopropylmethylamide, stearic acid dimethylaminopropylmethylamide, arachidic acid dimethylaminopropylmethylamide, behenic acid dimethylaminopropylmethylamide, myristic acid amidopropyltrimethylammonium salt, palmitic acid amidopropyltrimethylammonium salt, stearic acid amidopropyltrimethylammonium salt, and the like.

[0050] The enzyme is not particularly limited, and any of the enzymes generally used in dishwasher detergent compositions can be used. Examples include amylase, protease, lipase, cellulase, glucanase, etc. Among them, amylase and protease are preferred from the viewpoint of the cleaning power for complex soils. The content of the enzyme is preferably 0.001 to 2 mass%, more preferably 0.01 to 1 mass%, as an enzyme preparation, based on the total mass of the detergent composition. When the content of the enzyme is equal to or greater than the lower limit, the cleaning power against complex soils is easily improved. On the other hand, when the content of the enzyme exceeds the preferred upper limit, the effect of improving the cleaning power reaches a plateau and the cost becomes high.

[0051] Silicone-based defoaming agent is not particularly limited, and can be any of the general defoaming agents used in dishwasher detergent compositions. Silicone-based defoaming agent is not particularly limited to oil type, compound type, self-emulsifying compound type, powder type, etc., but can be, for example, polyorganosiloxane oil or resin dispersion or emulsion such as polydimethylsiloxane, and polyorganosiloxane chemically adsorbed or melted on silica and silica particle combination, and for example, FS Antifoam 1266 (manufactured by Dow Chemical Co.), FS Antifoam 93 (manufactured by Dow Chemical Co.), etc. are preferred. The content of the silicone-based antifoaming agent is preferably 0.01% by mass or more, more preferably 0.05% by mass or more, based on the total mass of the cleaning composition. The content of the silicone-based antifoaming agent is preferably 2% by mass or less, more preferably 1% by mass or less, based on the total mass of the cleaning composition. Specifically, the content of the silicone-based antifoaming agent is preferably 0.01 to 2% by mass, more preferably 0.05 to 1% by mass, based on the total mass of the cleaning composition. When the content of the silicone-based antifoaming agent is equal to or more than the above lower limit, the foam suppression property is easily improved. When the content of the silicone-based antifoaming agent is equal to or less than the above upper limit, the storage stability is easily improved.

[0052] Examples of thickeners include water-soluble polymers such as pectin, carboxymethylcellulose, methylcellulose, hydroxymethylcellulose, polyvinyl alcohol, polyvinylpyrrolidone, polyethylene glycol, tragacanth gum, carrageenan, locust bean gum, dextrin, dextrin fatty acid esters, acrylic acid polymers, methacrylic acid polymers, xanthan gum, guar gum, gelatin, sodium alginate, gum arabic, and starch; and water-swellable clay minerals such as smectite. Either natural or synthetic smectite can be used.

[0053] Examples of hydrotropic agents include aromatic sulfonic acids such as sodium cumene sulfonate, potassium cumene sulfonate, ammonium cumene sulfonate, sodium xylene sulfonate, potassium xylene sulfonate, ammonium xylene sulfonate, sodium toluene sulfonate, potassium toluene sulfonate, and ammonium toluene sulfonate; and aromatic carboxylic acids such as sodium benzoate.

[0054] Examples of pH adjusters include inorganic bases such as sodium hydroxide, potassium hydroxide, sodium carbonate, and potassium carbonate; organic bases such as monoethanolamine, diethanolamine, triethanolamine, 2-amino-2-methyl-1-propanol, N-(β-aminoethyl)ethanolamine, diethylenetriamine, morpholine, and N-ethylmorpholine; inorganic acids such as hydrochloric acid and sulfuric acid; and organic acids such as oxalic acid. In terms of storage stability and cost of the detergent composition, potassium hydroxide and sodium hydroxide are preferred among inorganic bases, and potassium hydroxide is particularly preferred from the viewpoints of storage stability, liquid fluidity, and the like. Among organic bases, monoethanolamine is preferred. The pH adjusters may be used alone or in appropriate combination of two or more. The content of the pH adjuster may be appropriately set so as to adjust the cleaning composition to a predetermined pH.

[0055] The detergent composition may be a liquid or a solid such as a powder or a tablet. From the viewpoint of usability, compatibility with an automatic dishwasher, etc., a liquid detergent composition is preferable. Hereinafter, a liquid detergent composition is also particularly referred to as a "liquid detergent composition".

[0056] Liquid cleaning compositions typically include water. The water content of the liquid detergent composition is preferably 70 to 99 mass %, more preferably 80 to 95 mass %, based on the total mass of the liquid detergent composition. When the water content is within the above range, the liquid detergent composition can be easily prepared.

[0057] The viscosity of the liquid detergent composition at 25° C. is preferably from 10 to 2000 mPa·s, and more preferably from 100 to 1000 mPa·s. The viscosity of the liquid detergent composition at 25°C is a value measured by a method conforming to Viscosity Measurement Method No. 2 of the General Test Methods in the Quasi-Drug Ingredients Standards 2006. Specifically, the value is measured using a Vismetron viscometer with rotors No. 2 to No. 4 at a rotation speed of 6 rpm for 120 seconds.

[0058] The pH of the liquid detergent composition at 25°C is preferably 5-10, and more preferably 6-9. The pH of the liquid detergent composition at 25°C is a value measured by a method in accordance with "pH measurement method" of JIS Z 8802:2011.

[0059] <Manufacturing method> The method for producing the cleaning composition of the present invention is not particularly limited, and the composition can be produced in accordance with a conventional method. For example, the liquid detergent composition can be produced by mixing components (a1), (a2), (b), a portion of water, and, if necessary, one or more optional components other than component (c) and the pH adjuster, adjusting the pH to a predetermined value using a pH adjuster if necessary, and then mixing with the remaining water.

[0060] <How to use> The detergent composition of the present invention can be used in a dishwasher, and may be used depending on the type of dishwasher and the degree of dirt on the dishes, etc. As a method for cleaning an object to be cleaned in a dishwasher using a detergent composition, a method having both a cleaning step and a rinsing step can be mentioned. Examples of the washing method include a process of washing an object to be washed while heating a washing liquid prepared by introducing tap water at room temperature (preferably about 5 to 30°C) into a dishwashing machine chamber to a predetermined washing temperature (the temperature of the washing liquid circulating during washing) (hereinafter referred to as the "washing process"); a process of rinsing the object to be washed with tap water at room temperature (hereinafter referred to as the "rinsing (1) process"); and a process of further rinsing the object to be washed after the rinsing (1) process while heating the tap water at room temperature, preferably to 70 to 75°C at a rate of 2 to 3°C / min (hereinafter referred to as the "rinsing (2) process"). The washing time in the washing process is preferably 10 to 40 minutes. In the case of a general standard course, the washing temperature in the washing step is about 55 to 65°C, and the temperature rise rate is about 2 to 3°C / min. In the low temperature course, for example, the washing temperature is about 35 to 45°C, and the temperature rise rate is about 1°C / min. The detergent composition for dishwashers of the present invention has excellent detergency against oily stains even in low temperature washing, and exhibits excellent detergency even at a washing temperature of, for example, 35°C. When the detergent composition is a liquid, the amount of detergent composition used at one time is preferably 2 to 9 g per about 3 liters of tap water in any course.

[0061] <Action and effect> The detergent composition described above contains components (a1), (a2), (b) and (c), and therefore has excellent foam-suppressing properties and cleaning power for complex protein and lipid stains in the presence of acidic stains, and can also prevent whitening inside the cabinet when cleaning for a long period of time. EXAMPLES

[0062] The present invention will be described in detail below with reference to examples, but the present invention is not limited to the following description.

[0063] <Raw materials used> [Component (a1)] a1-1: In the formula (a1), m is 0, Ma and Mb are sodium ions, R 1 is a mixture of sodium monoalkyl sulfosuccinate EO0 with carbon numbers of 10, 12, and 14, manufactured by Toho Chemical Co., Ltd. under the product name "Kohacool L-40." a1-2: In the formula (a1), AO is an oxyethylene group (EO), m is 3, Ma and Mb are sodium ions, R 1 is a mixture of carbon atoms of 10 and 12 (sodium monoalkyl sulfosuccinate EO3), manufactured by Toho Chemical Co., Ltd., under the product name "Kohacool L-300." a1-3: In the formula (a1), AO is EO, m is 4, Ma and Mb are sodium ions, R 1 is a mixture of sodium monoalkyl sulfosuccinate EO4 with carbon numbers 12, 14, and 16, manufactured by Toho Chemical Co., Ltd. under the product name "Kohacool L-400." a1-4: In the formula (a1), AO is EO, m is 9, Ma and Mb are sodium ions, R 1 is a mixture of sodium monoalkyl sulfosuccinate EO9 with carbon numbers 12, 13, and 14, manufactured by Nippon Shokubai Co., Ltd. under the trade name "Softanol MES-9."

[0064] [(a1) Comparative product of component] a'-1: Sodium linear alkylbenzene sulfonate (C10-14) (LAS), manufactured by Lion Specialty Chemicals Co., Ltd., product name "Lipon LS-250". a'-2: Sodium secondary alkane sulfonate (C14-17) (SAS), manufactured by Clariant Japan Co., Ltd., product name "HOSTAPUR SAS 30A". a'-3: Sodium linear alkyl sulfate (C12) (AS), manufactured by Lion Specialty Chemicals Co., Ltd., trade name "Sunol LM-1130". a'-4: Sodium polyoxyethylene alkyl ether sulfate (C12-14, EO=2) (AES), manufactured by New Japan Chemical Co., Ltd., trade name "Shinoline SPE-1250." a'-5: Sodium α-olefin sulfonate (C14) (AOS), manufactured by Lion Specialty Chemicals Co., Ltd., product name "Lipolan LB-440". a'-6: Di-2-ethylhexyl sodium sulfosuccinate (DSS), manufactured by Lion Specialty Chemicals Co., Ltd., product name "Repearl 870P".

[0065] [(a2) component] a2-1: Lauric acid, manufactured by Fujifilm Wako Pure Chemical Industries, Ltd. a2-2: Myristic acid, manufactured by Fujifilm Wako Pure Chemical Industries, Ltd. a2-3: Palmitic acid, manufactured by Fujifilm Wako Pure Chemical Industries, Ltd. a2-4: Stearic acid, manufactured by Fujifilm Wako Pure Chemical Industries, Ltd. a2-5: AO in the formula (a2-1) is EO, n is 3, Mc is a sodium ion, R 2 is a linear alkyl group having 12 carbon atoms, R 3 is a methylene group alkyl ether carboxylic acid (lauric acid EO3), manufactured by Taiko Oil Chemical Industry Co., Ltd., under the product name "Typol Soft EC-330N." a2-6: AO in the formula (a2-1) is EO, n is 5, Mc is a sodium ion, R 2 is a linear alkyl group having 12 carbon atoms, R 3 is a methylene group alkyl ether carboxylic acid (lauric acid EO5), manufactured by Taiko Oil Chemical Industry Co., Ltd., under the product name "Typol Soft EC-530N." a2-7: AO in the formula (a2-1) is EO, n is 9, Mc is a sodium ion, R 2 is a linear alkyl group having 12 carbon atoms, R 3 is a methylene group alkyl ether carboxylic acid (lauric acid EO9), manufactured by Taiko Oil Chemical Industry Co., Ltd., under the product name "Taipol Soft EC-2830."

[0066] [(b) component] b-1: Trisodium citrate (Na citrate), manufactured by Fuso Chemical Co., Ltd. b-2: Sodium ethylenediaminetetraacetate (EDTA), Tokyo Chemical Industry Co., Ltd. b-3: Tetrasodium glutamic diacetate (GLDA), manufactured by Chelest. b-4: Tetrasodium methylglycine diacetate (MGDA), manufactured by BASF, trade name "Trilon M Compactate". b-5: Sodium salt of maleic acid-acrylic acid copolymer (MA), acrylic acid / maleic acid molar ratio = 60 / 40, weight average molecular weight 50,000, active ingredient 40% by mass, manufactured by Nippon Shokubai Co., Ltd., product name "Aqualic TL400".

[0067] [(c) component] c-1: Propylene glycol (PG), manufactured by Adeka Corporation, product name "Cosmetic Propylene Glycol". c-2: Polyethylene glycol (PEG1000) with a number average molecular weight of 1000, manufactured by Sanyo Chemical Industries, Ltd., product name "PEG-1000" c-3: Propylene oxide adduct of glycerin (PPG), triol type, weight average molecular weight 4000, manufactured by Sanyo Chemical Industries, Ltd., product name "Sannyx GP-4000".

[0068] [Common ingredients] The following components were used as common components in the liquid detergent compositions of each example. The content (mass %) of each component is the ratio to the total mass of the liquid detergent composition. - 0.2% by mass of xanthan gum (manufactured by Kelco, trade name "KELZAN T"). Calcium chloride (Fujifilm Wako Pure Chemical Industries, Ltd., reagent) 0.3% by mass. Sodium cumene sulfonate (manufactured by Teika Corporation, product name "Teikatox N5040") 2.0% by mass. Sodium benzoate (Fujifilm Wako Pure Chemical Industries, Ltd., reagent) 5.0% by mass. Fragrance: 0.050 mass% of any one of the blended fragrance compositions 1 to 4 and the fragrance components listed in Table 1 of Tables 1 to 8 of JP2020-132680A.

[0069] [pH adjuster] Sodium hydroxide: 48% sodium hydroxide manufactured by Kanto Chemical Co., Ltd. Sulfuric acid: Manufactured by Fujifilm Wako Pure Chemical Industries, special reagent grade.

[0070] [Other optional ingredients] 2-Aminoethanol: Manufactured by Tokyo Chemical Industry Co., Ltd. 1,2-Benzisothiazol-3-one: Manufactured by Tokyo Chemical Industry Co., Ltd. Silicone-based antifoaming agent: Manufactured by Dow Chemical, product name "DOWSIL FS Antifoam 93". Enzymes: Amylase and protease mixture, Novozymes, trade name "Intensa Core 200L".

[0071] <Examples 1 to 38 and Comparative Examples 1 to 9> According to the compositions shown in Tables 1 to 4, components (a1), (a2), (b), (c) and the common components were dissolved in water as a solvent and the pH was adjusted to prepare 0.8 kg of each of the liquid detergent compositions of Examples 1 to 37 and Comparative Examples 1 to 4. Specifically, water was added to a 1 L beaker (diameter 12 cm) so that the total amount of water was 40 mass % of the entire composition. A mixer (SHINTO Scientific Co., Ltd., HEIDON FBL1200 Three-One Motor) was equipped with a four-blade paddle with a diameter of 7.5 cm, width of 1.5 cm, and angle of 45 degrees, and then, while stirring at a rotation speed of 400 to 900 rpm to prevent the contents from scattering, the common components xanthan gum and (c) component were added, then (b) component was added, and then the pH was adjusted to about 7 with a pH adjuster (sodium hydroxide or sulfuric acid), and then heated to a high temperature of about 70°C, and in that state, the (a) component and the remaining common components were added, and after cooling to room temperature, the pH was adjusted to 7.5 with the pH adjuster. After the addition was completed, the mixture was stirred at a rotation speed of 650 rpm for 5 minutes, the remaining water was added so that the entire composition was 100% by mass, and the mixture was stirred at a rotation speed of 650 rpm for 1 minute to obtain a liquid detergent composition. The content of each component in the table is expressed in mass %, and the amount of each component is expressed as a pure content. A blank space in the table indicates that the ingredient is not included. The pH (25° C.) of the liquid detergent composition was measured using a glass electrode pH meter (HM-30G, manufactured by DKK-TOA Corporation) for the liquid detergent composition adjusted to 25° C. The measurement method was in accordance with JIS Z 8802:2011 "pH measurement method."

[0072] <Evaluation> The liquid detergent compositions of the Examples and Comparative Examples were evaluated as follows. The evaluation results are shown in Tables 1 to 4. In each evaluation, a Panasonic NP-45MD9SP dishwasher was used. In each evaluation, the dishwasher was operated with the automatic detergent dispenser turned off and in the dirt level L2 or L3 course. The details of the L2 and L3 courses are shown below. L2 Courses: Tap water at about 5°C is introduced into the cabinet, and the washing solution is heated to about 55°C at 2-3°C / min while washing for 30 minutes, and the washing solution is drained. Next, new tap water is introduced, and rinsing and draining are repeated twice. After draining, new tap water is introduced and the water is heated to about 65°C at 2-3°C / min while rinsing once (rinsing time is about 50 minutes), and after draining, the dishes are dried while circulating hot air. L3 Course: Tap water at about 5°C is introduced into the cabinet, and the washing liquid is heated to about 60°C at 2-3°C / min while washing for 40 minutes, and the washing liquid is drained. Next, new tap water is introduced, and rinsing and draining are repeated three times. After draining, new tap water is introduced and the water is heated to about 70°C at 2-3°C / min while rinsing once (rinsing time is about 70 minutes), and after draining, the dishes are dried while circulating hot air.

[0073] [Foam control] 16 g of the liquid detergent composition and 6 g of well-beaten whole egg were added to the dishwasher, and the dishwasher was operated on the L3 course. When the water temperature reached 50°C after the start of washing, the operation was stopped and the door was opened at the same time. 10 seconds later, foaming in the cabinet was observed, and the foam suppression ability was evaluated based on the following evaluation criteria. A rating of ○, ◎, ◎◎, or ◎◎◎ was deemed to be acceptable. (Evaluation Criteria) : No bubbles were observed. ⊚: Generation of bubbles was observed, but the level was such that bubbles could be seen visually at the bottom of the dishwasher. ⊚: Foam generation was observed, but it only slightly covered the liquid surface. ○: Foam generation was observed, but the foam height was lower than that of the water jet nozzle. ×: Foam generation was observed, the foam height exceeded the water jet nozzle, and air bubbles were observed. "Air bubbles" refers to a state in which, when a large amount of foam is generated during cleaning, air gets into the circulation pump, weakening the water spray power and generating abnormal noise. In this test, the presence or absence of air bubbles was evaluated by checking for abnormal noise.

[0074] [Cleaning power] The cleaning power of the detergent against protein and lipid complex stains in the presence of acidic stains was evaluated by the following procedure.

[0075] "Prepare for filth" The soil used for the evaluation was prepared according to the following procedure. Tomato juice stains: Tomato juice (Tomato juice, manufactured by Nippon Del Monte Co., Ltd.) was poured into each of six cups (manufactured by Toyo Glass Co., Ltd.) and the entire cup was contaminated by tilting it. Dressing stains: Dressing (olive oil & onion dressing, manufactured by Kewpie Corporation) was applied to the entire surface of each of six medium-sized bowls (made of ceramic, radius 80 mm, height 45 mm). Egg stains: A large egg was heated in a frying pan over low heat to prepare a soft-boiled fried egg. The yolk of the fried egg was spread onto six spoons (stainless steel, length: 180 mm), six forks (stainless steel, length: 180 mm), and six small plates (ceramic, radius 60 mm, height 20 mm), and left for one hour. Complex soiling: 200g of instant curry (Otsuka Foods Co., Ltd., Bon Curry Gold Hot), one large egg, and 150g of rice (equivalent to Koshihikari rice, the rice to water ratio was the standard for the rice cooker, and cooked within 12 hours) were mixed. 30g of the resulting mixture was placed on six large plates (ceramic, radius 115mm, height 25mm) and the surfaces of the plates were uniformly contaminated. After that, the mixture was discarded leaving about 10 grains of rice, and the rice grains were crushed with a spoon and attached to the large plates.

[0076] "Evaluation of cleaning power" The prepared dirty containers (6 cups, 6 spoons, 6 forks, 6 medium-sized bowls, 6 small plates, and 6 large plates) were loaded into the designated locations according to the dishwasher's instructions, 8 g of liquid detergent composition was added, and the dishwasher was operated on the L2 cycle. After the operation was completed, the spoon and fork were observed and the cleaning power of the detergent against complex protein and lipid stains in the presence of acidic stains was evaluated based on the following evaluation criteria. A rating of ○, ◎, ◎◎ or ◎◎◎ was deemed to be a pass. (Evaluation Criteria) ◎◎◎◎: No dirt remaining on any of the spoons and forks. ◎◎◎: Of the total 12 spoons and forks, one or less spoons or forks had visible remaining dirt. ◎◎: Of the total of 12 spoons and forks, 2 or fewer spoons and forks were found to be dirty. ◎: Of a total of 12 spoons and forks, 3 or fewer spoons and forks were found to be dirty. Good: Of the total of 12 spoons and forks, 4 or fewer spoons and forks had visible residual dirt. ×: Of the total of 12 spoons and forks, 5 or more spoons and forks had visible residual dirt.

[0077] [Prevention of whitening inside the cabinet] 8 g of the liquid detergent composition was added to the dishwasher, and the dishwasher was washed 100 times using the L3 course. The state of the interior of the dishwasher around the food residue filter was then observed, and the anti-whitening performance inside the dishwasher was evaluated based on the following evaluation criteria. A rating of ○, ◎, ◎◎, or ◎◎◎ was deemed to be acceptable. (Evaluation Criteria) : No whitening was visible, and there was no staining at all when touched with a finger. ◎◎: No whitening was visible, and slight adhesions were detectable when touched with a finger. : Whitening is slightly visible. ○: Whitening is clearly visible, but the deposits can be easily removed by rubbing with a finger. ×: Whitening is clearly visible, and the stain cannot be removed even by rubbing with a finger.

[0078] [Table 1]

[0079] [Table 2]

[0080] [Table 3]

[0081] [Table 4]

[0082] The liquid detergent compositions of Examples 1 to 38 passed all the tests for foam suppression, cleaning power for complex protein and lipid stains in the presence of acidic stains, and prevention of whitening inside the cabinet. Comparative Example 1, which did not contain the component (a1), failed in the cleaning power for complex protein and lipid stains in the presence of acidic stains and in the prevention of whitening inside the cabinet. Comparative Example 2, which did not contain the component (a2), failed in terms of foam suppression properties. Comparative Example 3, which did not contain the component (b), failed in preventing whitening inside the cabinet. Comparative Examples 4 to 9, which used a comparative product instead of the (a1) component, failed in terms of foam suppression and prevention of whitening inside the cabinet. In particular, Comparative Examples 5 to 9 failed in terms of the cleaning power for protein / lipid complex soils in the presence of acidic soils.

[0083] <Prescription Examples 1-60> According to the compositions shown in Tables 5 to 10, the (a1), (a2), (b), (c) and other components were dissolved in water as a solvent, and the pH was adjusted to prepare 0.8 kg of each of the liquid detergent compositions of Formulation Examples 1 to 40. Specifically, water was added to a 1 L beaker (diameter 12 cm) so that the total amount of water was 40 mass % of the entire composition. A stirrer (HEIDON FBL1200 Three-One Motor, manufactured by Shinto Scientific Co., Ltd.) was equipped with a four-blade paddle with a diameter of 7.5 cm, width of 1.5 cm and angle of 45 degrees, and then xanthan gum and (c) component were added, followed by (b) component while stirring at a rotation speed of 400 to 900 rpm so as not to scatter the contents, and then the pH was adjusted to about 7 with a pH adjuster (sodium hydroxide or sulfuric acid), and then heated to a high temperature of about 70°C, and in that state, the (a) component and the remaining common components were added, and after cooling to room temperature, the pH was adjusted to 7.5 with a pH adjuster. After the addition was completed, the mixture was stirred at 650 rpm for 5 minutes, the remaining water was added so that the total composition was 100% by mass, and the mixture was stirred at 650 rpm for 1 minute to obtain a liquid cleaning composition. The content of each component in the table is expressed in mass %, and the amount of each component is expressed as a pure content. A blank space in the table indicates that the ingredient is not included. The method for measuring the pH of the liquid detergent composition is as described above.

[0084] [Table 5]

[0085] [Table 6]

[0086]

Table 7

[0087]

Table 8

[0088]

Table 9

[0089]

Table 10

Claims

1. (a1) Components: At least one selected from the group consisting of compounds represented by the following formula (a1), (a2) Components: At least one selected from the group consisting of a compound represented by the following formula (a2-1) and a compound represented by the following formula (a2-2), (b) Ingredients: Chelating agent and A dishwasher detergent composition containing the following: 【Chemistry 1】 In the formula, R １ , R ２ and R ４ Each is independently a linear or branched alkyl group having 8 to 18 carbon atoms or a linear or branched alkenyl group having 8 to 18 carbon atoms, R ３ is a linear or branched alkylene group having 1 to 3 carbon atoms, AO is an oxyalkylene group, m and n are independently numbers from 0 to 10 indicating the average repeating number of AO, Ma, Mb, Mc and Md are independently counterions, and -C2H3(SO3Mb)- is -CH2-CH(SO3Mb)- or -CH(SO3Mb)-CH2-.

2. (c) A dishwasher detergent composition according to claim 1, comprising a polyol.

3. The dishwasher detergent composition according to claim 2, wherein component (c) is at least one selected from the group consisting of a propylene oxide adduct of a trivalent to hexavalent alcohol, propylene glycol, and polyethylene glycol having a number average molecular weight of 250 to 2000.

4. A dishwasher detergent composition according to any one of claims 1 to 3, wherein the mass ratio represented by component (a1) / component (a2) is 0.3 to 200.

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