JP7450513B2 - dishwashing detergent - Google Patents

Description

FIELD OF THE INVENTION The present invention relates to a dishwashing agent.

In recent years, due to changes in consumer lifestyles, ``quickness'' has become more important when washing dishes. Important factors that lead to ``quickness'' in dishwashing detergents include ``cleaning power'' that thoroughly removes oil stains, ``fewer slimy residue'' during dishwashing and rinsing, and ``dishwashing efficiency.'' It is desirable that the product satisfies these performance requirements, such as "quick draining (excellent water draining properties)" which can shorten the overall time it takes to dry the product and store it in a cupboard or the like.
Regarding dishwashing detergents, various studies have been conducted regarding the reduction of slimy buildup and drainage properties.

Patent Document 1 proposes a liquid detergent containing a specific amount of an anionic surfactant, at least one of an amphoteric surfactant and a semipolar surfactant, and cationized cellulose. According to the invention described in Patent Document 1, improvements in water drainage and the like are achieved.
Patent Document 2 discloses a dishwashing liquid detergent containing an anionic surfactant, at least one of a semipolar surfactant and an amphoteric surfactant, cationized cellulose, and a specific nonionic surfactant in a specific ratio. agents have been proposed. According to the invention described in Patent Document 2, it is possible to improve water drainage and suppress sliminess during washing and rinsing.

Japanese Patent Application Publication No. 2003-155499 JP 2018-35251 Publication

However, when used tableware is left for a long time (for example, 24 hours) and then washed using a conventional dishwashing agent, the drainage performance may be reduced. The longer the standing time, the more likely the water drainage property will be reduced.
SUMMARY OF THE INVENTION An object of the present invention is to provide a dishwashing agent that can reduce sliminess and exhibit excellent draining properties even on dishes that have been left for a long time after use.

The present invention has the following aspects.
[1] Component (A): anionic surfactant,
(B) Component: at least one selected from amine oxide type surfactants and amphoteric surfactants,
(C) Component: a cationic polymer compound,
(D) Component: chelating agent,
(E) Component: Contains a propylene oxide adduct of tri- to hexa-hydric alcohol,
With respect to the total mass of the dishwashing detergent, the content of the component (C) is 0.1 to 2% by mass, and the content of the component (D) is 1 to 10% by mass as an acid type,
A dishwashing detergent having a mass ratio of component (D)/component (E) of 0.1 to 800.
[2] The dishwashing agent of [1] above, wherein the mass ratio represented by the component (A)/component (B) is 0.5 to 2.5.
[3] The dishwashing agent according to [1] or [2] above, wherein the component (E) is a propylene oxide adduct of glycerin.
[4] The tableware according to any one of [1] to [3] above, wherein the mass ratio represented by (component (C) + component (D))/component (E) is 0.3 to 100. cleaning agent.
[5] The dishwasher according to any one of [1] to [4] above, wherein the mass ratio represented by (component (D) + component (E))/component (C) is 1 to 50. agent.
[6] Component (F): The dishwashing agent according to any one of [1] to [5] above, further containing a glycol ether solvent.
[7] The dishwashing agent according to [6] above, wherein the content of the component (F) is 0.1 to 5% by mass based on the total mass of the dishwashing detergent.
[8] The dishwashing agent according to any one of [1] to [7] above, wherein the component (C) contains cationized cellulose.
[9] The dishwashing agent according to any one of [1] to [8] above, wherein the weight average molecular weight of the component (E) is 250 or more.
[10] The dishwashing agent according to any one of [1] to [9] above, wherein the content of the component (A) is 4 to 25% by mass based on the total mass of the dishwashing detergent.
[11] The dishwashing agent according to any one of [1] to [10] above, wherein the content of the component (B) is 2 to 20% by mass based on the total mass of the dishwashing detergent.
[12] The dishwashing agent according to any one of [1] to [11], wherein the content of the component (E) is 0.01 to 10% by mass based on the total mass of the dishwashing detergent.

According to the present invention, it is possible to provide a dishwashing agent that can reduce sliminess and exhibit excellent draining properties even on dishes that have been left for a long time after use.

The present invention will be explained in detail below.
The dishwashing agent of the present invention is a composition containing the following components (A), (B), (C), (D) and (E). It is preferable that the dishwashing agent further contains component (F) shown below. The dishwashing agent may further contain optional components other than the (A) component, (B) component, (C) component, (D) component, (E) component, and (F) component as necessary. .
The dishwashing agent of the present invention is a dishwashing agent for so-called hand washing.

<(A) component>
Component (A) is an anionic surfactant.
When the dishwashing detergent contains the component (A), it can exhibit the cleaning power against oil stains (oil stain cleaning power) and foaming properties that are necessary as the basic performance of a kitchen detergent. These oil stain detergency and foaming properties are particularly enhanced by combining with component (B) described below.

Component (A) includes, for example, α-olefin sulfonic acid or its salt, linear or branched alkyl sulfate or its salt, polyoxyalkylene alkyl ether sulfate or its salt, polyoxyalkylene alkenyl ether sulfate or its salt. salts, alkanesulfonic acids having an alkyl group or their salts, α-sulfo fatty acid esters or their salts, sulfosuccinic acid alkyl esters or their salts, sulfosuccinic acid dialkyl esters or their salts, linear alkylbenzenesulfonic acids or their salts, etc. .
Examples of the salt form of anionic surfactants include alkali metal salts such as sodium and potassium; alkaline earth metal salts such as calcium and magnesium; and alkanolamine salts such as monoethanolammonium, diethanolammonium, and triethanolamine. It will be done.

Component (A) is preferably a non-soap anionic surfactant from the viewpoint of further increasing the detergency, and among these, polyoxyalkylene alkyl ether sulfate or a salt thereof, an alkyl group-containing alkanesulfonic acid or a salt thereof, Linear alkylbenzenesulfonic acids or salts thereof, sulfosuccinic dialkyl esters or salts thereof are preferred, polyoxyalkylene alkyl ether sulfates or salts thereof, alkanesulfonic acids having an alkyl group or salts thereof, linear alkylbenzenesulfonic acids or salts thereof. More preferred.

Examples of the polyoxyalkylene alkyl ether sulfate or its salt include a compound represented by the following general formula (1).
R ¹ -O- [(PO) _m / (EO) _n ]-SO ₃ ^- 1/X・M ⁺ ... (1)
(In general formula (1), R ¹ is a linear or branched alkyl group having 8 to 18 carbon atoms, and the carbon atom bonded to the oxygen atom is a primary carbon atom. PO is represents an oxypropylene group, EO represents an oxyethylene group, m represents the average repeating number of PO, and is a number satisfying 0≦m<1, n represents the average repeating number of EO, 0<n≦4 (M ⁺ is a cation other than a hydrogen ion, and X is the valence of M ⁺ .)

In the general formula (1), the number of carbon atoms in R ¹ is 8 to 18, preferably 10 to 14, and more preferably 12 to 14. From the viewpoint of detergency and environment, R ¹ is preferably an alkyl group derived from an oil or fat raw material. Suitable oil and fat raw materials include palm kernel oil, coconut oil, and the like.

The average number of PO repeats (ie, the average number of moles of propylene oxide added) is 0 or more and less than 1, preferably 0.
The average number of repeats of EO (ie, the average number of added moles of ethylene oxide) is more than 0 and not more than 4, preferably 1 to 4.
When m is greater than 0, (PO) _m /(EO) _n , EO and PO may be added randomly or in blocks, and the arrangement state does not matter.

In general formula (1), M ⁺ is a cation other than a hydrogen ion, and has a valence of X. Examples of M ⁺ include those capable of forming water-soluble salts, such as alkali metals, alkaline earth metals, ammonium or alkanolamines.
Examples of alkali metals include sodium and potassium.
Examples of alkaline earth metals include calcium and magnesium.
Examples of alkanolamines include monoethanolamine, diethanolamine, triethanolamine, and the like.

Examples of alkanesulfonic acids or salts thereof having an alkyl group include alkanesulfonic acids having 10 to 20 carbon atoms or salts thereof, preferably alkanesulfonic acids having 14 to 17 carbon atoms or salts thereof, and alkanesulfonic acids having 14 to 17 carbon atoms or salts thereof. Particularly preferred are secondary alkanesulfonic acids or salts thereof.
The linear alkylbenzenesulfonic acids or salts thereof are preferably linear alkylbenzenesulfonic acids or salts thereof in which the linear alkyl group has 8 to 16 carbon atoms, and linear alkylbenzenesulfonic acids in which the linear alkyl group has 10 to 14 carbon atoms. Acids or their salts are particularly preferred.
As the sulfosuccinic acid dialkyl ester or its salt, a sulfosuccinic acid dialkyl ester or its salt in which the alkyl group has 8 to 20 carbon atoms is preferable, and a sulfosuccinic acid dialkyl ester in which the alkyl group has 8 to 16 carbon atoms or its salt is particularly preferable. .

Specifically, component (A) includes polyoxyethylene (1) straight chain alkyl (C12) ether sulfate ester sodium salt, polyoxyethylene (2) straight chain alkyl (C12) ether sulfate ester sodium salt, polyoxyethylene ( 4) Straight chain alkyl (C12) ether sulfate ester sodium salt, polyoxyethylene (1) straight chain alkyl (C12/14=75/25; derived from natural fats and oils) ether sulfate ester sodium salt, polyoxyethylene (2) straight chain Alkyl (C12/14=75/25; derived from natural fats and oils) ether sulfate ester sodium salt, polyoxyethylene (4) straight chain alkyl (C12/14=75/25; derived from natural fats and oils) ether sulfate ester sodium salt, alkanesulfone acid sodium salt, straight-chain alkyl (C10-14) benzenesulfonic acid sodium salt, di-2-ethylhexyl sulfosuccinate sodium salt, and the like.
Among these, polyoxyethylene (1) linear alkyl (C12/14 = 75/25; derived from natural oils and fats) ether sulfate ester sodium salt, polyoxyethylene (2) are particularly useful because they are particularly easy to obtain the effects of the present invention. Straight chain alkyl (C12/14=75/25; derived from natural fats and oils) ether sulfate ester sodium salt, polyoxyethylene (4) straight chain alkyl (C12/14=75/25; derived from natural fats and oils) ether sulfate ester sodium salt, Alkanesulfonic acid sodium salt, linear alkyl (C10-14) benzenesulfonic acid sodium salt, di-2-ethylhexyl sulfosuccinate sodium salt are preferred, and polyoxyethylene (1) linear alkyl (C12/14 = 75/25; More preferred are ether sulfate sodium salt (derived from natural oils and fats), alkanesulfonic acid sodium salt, and linear alkyl (C10-14) benzenesulfonic acid sodium salt.
Component (A) may be used alone or in an appropriate combination of two or more.

Here, for example, "polyoxyethylene (1)" means that the average number of repeating oxyethylene groups is 1 (the average number of added moles of ethylene oxide is 1).
"C12/14=75/25; derived from natural fats and oils" means a mixture of one having a straight-chain alkyl group having 12 carbon atoms and one having a straight-chain alkyl group having 14 carbon atoms (mixing ratio: mass ratio). 75/25), meaning that it is a linear alkyl group derived from natural oils and fats.

The content of component (A) is preferably 4 to 25% by mass, more preferably 8 to 15% by mass based on the total mass of the dishwashing detergent. When the content of component (A) is equal to or higher than the above lower limit, the water drainage performance and oil stain cleaning power can be further improved. If the content of the component (A) is below the above upper limit, the uniformity of the liquid in the dishwashing detergent can be easily maintained, and the oil stain cleaning power can be more stably exhibited.

<(B) component>
Component (B) is at least one selected from amine oxide type surfactants and amphoteric surfactants.
When the dishwashing detergent contains the component (B), the synergistic effect with the component (A) increases the oil stain cleaning power and the foaming property, which are necessary as the basic performance of a kitchen detergent.

Examples of amine oxide type surfactants include alkyl amine oxide type and alkanoylamide alkyl amine oxide type.
As the amine oxide type surfactant, a compound represented by the following general formula (2) is preferable.
R ² -(A) _p -N(-R ³ )(-R ⁴ )→O...(2)
(In general formula (2), R ² is a straight chain or branched alkyl group having 8 to 18 carbon atoms or a straight chain or branched alkenyl group having 8 to 18 carbon atoms, and R ³ and R ⁴ are each They are independently an alkyl group having 1 to 3 carbon atoms or a hydroxyalkyl group having 1 to 3 carbon atoms, and A is -C(=O)-NH-R ⁵ -, -NH-C(=O)-R ⁵ -, -C(=O)-O-R ⁵ -, -O-C(=O)-R ⁵ - or -O-R ⁵ -, and R ⁵ is an alkylene group having 1 to 4 carbon atoms. , p is a number of 0 or 1.)

In general formula (2), R ² has 8 to 18 carbon atoms, preferably 10 to 14 carbon atoms. R ² is preferably a straight chain or branched alkyl group having 8 to 18 carbon atoms.
In general formula (2), R ³ and R ⁴ are each preferably an alkyl group having 1 to 3 carbon atoms, more preferably a methyl group, and even more preferably both R ³ and R ⁴ are methyl groups.
In general formula (2), A is preferably -C(=O)-NH-R ⁵ -.
In general formula (2), p is a number of 0 or 1, and 0 is preferable.

Specific examples of the compound represented by the general formula (2) include alkyl dimethyl amine oxides such as lauryl dimethyl amine oxide (n-dodecyl dimethyl amine oxide), coconut alkyl dimethyl amine oxide, lauryl diethyl amine oxide, myristyl dimethyl amine oxide; Examples include alkanoylamide alkyldimethylamine oxide such as lauric acid amidopropyl dimethylamine oxide. Among these, lauryl dimethyl amine oxide, coconut dimethyl amine oxide, lauryl diethyl amine oxide, and lauric acid amidopropyl dimethyl amine oxide are preferred, and lauryl dimethyl amine oxide is more preferred, since the effects of the present invention can be particularly easily obtained.
The amine oxide type surfactants may be used alone or in an appropriate combination of two or more.

The amphoteric surfactant is not particularly limited, and any general amphoteric surfactant used in conventional dishwashing detergents can be used, such as carboxylate type (also called betaine type), sulfuric acid, etc. Examples include ester salt type, sulfonate salt type, and phosphate ester salt type. Among these, carboxylate type amphoteric surfactants are preferred.
Specific examples of carboxylate type amphoteric surfactants include lauryldimethylaminoacetic acid betaine, coconut oil fatty acid amidopropyl betaine, lauric acid amidopropyl dimethylaminoacetic acid betaine, and coconut alkylamidopropyl dimethylaminoacetate. Examples include betaine acetate.
The amphoteric surfactants may be used alone or in an appropriate combination of two or more.

As component (B), amine oxide type surfactants are preferred, and among these, alkyl amine oxide type surfactants are particularly preferred.
The content of component (B) is preferably 2 to 20% by mass, more preferably 5 to 12% by mass, based on the total mass of the dishwashing detergent. When the content of component (B) is equal to or higher than the above lower limit, the water drainage performance and oil stain cleaning power can be further improved. If the content of the component (B) is below the above upper limit, the uniformity of the liquid in the dishwashing detergent can be easily maintained, and the oil stain cleaning power can be more stably exhibited.

The mass ratio represented by component (A)/component (B) (hereinafter also referred to as "A/B ratio") is preferably 0.5 to 2.5, more preferably 0.5 to 2, and 0.5 to 2.5. 5 to 1.5 is more preferred, and 0.8 to 1.5 is particularly preferred. If the A/B ratio is within the above range, it is easy to improve drainage and suppress sliminess.

<(C) component>
Component (C) is a cationic polymer compound.
When the dishwashing detergent contains the component (C), the water drainage property is enhanced due to the synergistic effect with the component (D) described below. In particular, when used tableware is left for a long time (for example, 24 hours) and then washed, the water draining property can be maintained well.

Component (C) includes cationized cellulose, soil release agents other than cationized cellulose, and the like. Examples of soil release agents other than cationized cellulose include reaction products obtained by alkylating hydroxyethyl cellulose with alkyl (preferably lauryl) glycidyl ether and further cationizing it with glycidyl trimethylammonium chloride. The degree of substitution of alkyl groups in this reaction product is preferably 0.01 to 0.5, and the degree of substitution of cationic groups is preferably 0.001 to 0.4 or less.
Among these, cationized cellulose is preferred from the viewpoint of further improving water drainage properties.
Component (C) may be used alone or in an appropriate combination of two or more.

Examples of cationized cellulose include compounds represented by the following general formula (3), compounds represented by the following general formula (4), compounds represented by the following general formula (5), and compounds represented by the following general formula (6). Specific examples include cation-modified hydroxyethylcellulose such as hydroxytrimethylammoniopropylhydroxyethylcellulose chloride and hydroxyethylcellulose dimethyldiallylammonium chloride polymer. Among these, the compound represented by the following general formula (3) is preferred from the viewpoint of particularly excellent water drainage properties.

The weight average molecular weight of the compound represented by general formula (3) is from 10,000 to several million.
The weight average molecular weight of the compound represented by general formula (4) is from 10,000 to several million.
The weight average molecular weight of the compound represented by general formula (5) is from 10,000 to several hundreds of thousands.
The weight average molecular weight of the compound represented by general formula (6) is from 10,000 to several hundreds of thousands.

The degree of cationization of component (C) is preferably 0.5 to 3.5% by mass, more preferably 1.5 to 2.5% by mass. If the degree of cationization of component (C) is within the above range, the water drainage property will be further improved.
Here, the "degree of cationization" refers to the content (mass%) of nitrogen atoms derived from the cationizing agent in the molecules of component (C), that is, the percentage of nitrogen atoms derived from the cationizing agent relative to the total mass of component (C). It means the content rate.
The degree of cationization of component (C) is calculated based on the specified chemical structure.
When the chemical structure of component (C) is not specified, such as when the ratio of any monomer in component (C) is unknown, the degree of cationization of component (C) can be calculated from the experimentally determined nitrogen content. Calculated. Examples of the method for measuring the nitrogen content in component (C) include the Kjeldahl method.

The viscosity of the 2% by mass aqueous solution of component (C) at 25° C. is preferably 50 to 35,000 mPa·s, more preferably 70 to 500 mPa·s, and even more preferably 70 to 200 mPa·s. When the viscosity of the 2% by mass aqueous solution of component (C) is within the above range, it provides an excellent balance between drainage properties and stability when used as a liquid composition.
The viscosity is a value measured using a B-type viscometer for a 2% by mass aqueous solution of component (C) at 25°C. The conditions for measuring viscosity are as follows.

Measurement condition:
[rotor]
The rotor number and rotor rotation speed corresponding to the viscosity of the object to be measured are as follows.
・Viscosity is less than 500 mPa・s: Rotor number No. 2. Rotation speed 60 rpm.
・Viscosity is 500 mPa・s or more and less than 2000 mPa・s: Rotor number No. 3. Rotation speed 60 rpm.
・Viscosity is 2000 mPa・s or more and less than 10000 mPa・s: Rotor number No. 4. Rotation speed 60 rpm.
・Viscosity is 10,000 mPa・s or more and less than 50,000 mPa・s: Rotor number No. 4. Rotation speed 12 rpm.
[Reading numbers]
60 seconds after the rotor starts rotating.

As component (C), for example, the product name "Leogard GP (quaternary nitrogen content 1.8% by mass, manufactured by Lion Specialty Chemicals Co., Ltd.)", the product name "Leogard MGP (quaternary nitrogen content 1.8% by mass, manufactured by Lion Specialty Chemicals Co., Ltd.)", 1.8% by mass, manufactured by Lion Specialty Chemicals Co., Ltd.)", product name: "Leogard MLP (quaternary nitrogen content: 0.6% by mass, manufactured by Lion Specialty Chemicals Co., Ltd.)", product name: "UCARE" JR125 (Quaternary nitrogen content 1.9% by mass, manufactured by Dow Chemical Company)", product name "UCARE JR400 (quaternary nitrogen content 1.9% by mass, manufactured by Dow Chemical Company)", product name Examples include "UCARE LR30M (quaternary nitrogen content 1.0% by mass, manufactured by Dow Chemical Company)". Among these, "UCARE JR125" and "UCARE JR400" are preferred, and "UCARE JR125" is more preferred, from the viewpoint of further improving water drainage.

The content of component (C) is 0.1 to 2% by mass, preferably 0.1 to 1% by mass, and more preferably 0.1 to 0.5% by mass based on the total mass of the dishwashing detergent. Preferably, 0.2 to 0.3% by mass is more preferable. If the content of component (C) is equal to or higher than the above lower limit, the oil stain cleaning power and water drainage properties will be further enhanced. If the content of component (C) is below the above upper limit, sliminess can be further suppressed.

<(D) component>
Component (D) is a chelating agent.
By containing the component (D) in the dishwashing detergent, due to the synergistic effect with the component (E) described below, water drainage performance is improved, especially when the dishes are washed after being left for a long time after use. It is easy to achieve both this and suppression of slippage.

Component (D) is not particularly limited, and any general chelating agent used in conventional dishwashing detergents can be used, such as ethylenediaminetetraacetic acid, nitrilotriacetic acid, β-alaninediacetic acid, ethylenediamine Disuccinic acid, L-aspartic acid-N,N-diacetic acid, dihydroxyethylethylenediaminediacetic acid, hydroxyethyliminodiacetic acid, citric acid, hydroxyethylethylenediaminetriacetic acid, glycol etherdiaminetetraacetic acid, L-glutamic acid diacetic acid, 1 , 3-diamino-2-hydroxypropane tetraacetic acid, diethylenetriaminepentaacetic acid, triethylenetetraminehexaacetic acid, dihydroxyethylglycine, 3-hydroxy-2,2'-iminodisuccinic acid, serine diacetic acid, asparagine diacetic acid, methylglycine diacetic acid , hydroxyethane diphosphonic acid, aminotrimethylenephosphonic acid, tripolyphosphoric acid, or salts thereof.
As the salt constituting the chelating agent, alkali metal salts are preferred, and sodium salts and potassium salts are more preferred.

Among the above, as component (D), citric acid, L-glutamic acid diacetic acid, methylglycine diacetic acid, diethylenetriaminepentaacetic acid, ethylenediaminetetraacetic acid, or salts thereof are preferable, and among these, from the viewpoint of further improving drainage properties. , citric acid or its salts are particularly preferred.
Component (D) may be used alone or in an appropriate combination of two or more.

The content of component (D) as an acid type is 1 to 10% by mass, preferably 2 to 6% by mass, more preferably 2.8 to 6% by mass, and 2.8% by mass based on the total mass of the dishwashing detergent. More preferably, it is 4% by mass. If the content of component (D) is equal to or higher than the above lower limit, the oil stain cleaning power and water drainage properties, especially the water drainage properties when used tableware is washed after being left for a long time, will be further enhanced. If the content of component (D) is below the above upper limit, sliminess can be further suppressed.

<(E) component>
Component (E) is a propylene oxide adduct of tri- to hexa-hydric alcohol.
By containing the component (E) in the dishwashing detergent, due to the synergistic effect with the component (D), the water drainage performance is improved, especially when the dishes are washed after being left for a long time after use. It is easy to simultaneously suppress sliminess.
Examples of the tri- to hexa-hydric alcohol include glycerin, polyglycerin, trimethylolpropane, pentaerythritol, and sorbitol.
Component (E) includes, for example, triol-type, tetraol-type, pentaol-type, or hexaol-type polypropylene glycol. Among these, triol-type polypropylene glycol is preferred from the viewpoint of reducing sliminess. Among these, a propylene oxide adduct of glycerin represented by the following general formula (7) is particularly preferred from the viewpoint of further reducing sliminess.
Component (E) may be used alone or in an appropriate combination of two or more.

In the general formula (7), PO represents an oxypropylene group, and a, b, and c each independently represent the average repeating number of PO, and are a number of 10 to 350.

The weight average molecular weight of component (E) is preferably 200 or more, more preferably 250 or more, even more preferably 250 to 5,500, even more preferably 250 to 5,000, even more preferably 2,000 to 5,000, particularly preferably 3,500 to 4,500, and particularly preferably 3,500 to 5,500. 4000 is most preferred.
If the weight average molecular weight of component (E) is equal to or higher than the above lower limit, the oil stain cleaning power will be further enhanced. If the content of component (E) is below the above upper limit, liquid stability will be improved.
The weight average molecular weight of component (E) is determined from the molecular weight distribution obtained by GPC (gel permeation chromatography) using polypropylene glycol (weight average molecular weight: 800, 1200, 2000, 4000) as a standard.

When component (E) is, for example, a propylene oxide adduct of glycerin represented by general formula (7), component (E) can be produced by addition polymerizing propylene oxide to glycerin. At this time, by adjusting the amount of propylene oxide supplied for addition polymerization, a propylene oxide adduct having a desired weight average molecular weight can be produced.

The content of component (E) is preferably 0.01 to 10% by mass, more preferably 0.05 to 2% by mass, and even more preferably 0.1 to 1% by mass based on the total mass of the dishwashing detergent. . If the content of the component (E) is at least the above lower limit, sliminess can be further suppressed. If the content of component (E) is below the above upper limit, the oil stain cleaning power will be further enhanced.

The mass ratio represented by component (D)/component (E) (hereinafter also referred to as "D/E ratio") is 0.1 to 800, preferably 1 to 100, and more preferably 10 to 50. When the D/E ratio is within the above range, it is easy to improve drainage and suppress sliminess. In particular, if the D/E ratio is equal to or higher than the above lower limit, the water drainage performance, especially when the tableware after use is left for a long time and then washed, will be further improved. If the D/E ratio is less than or equal to the above upper limit value, nulliness can be further suppressed.

The mass ratio represented by ((C) component + (D) component)/(E) component (hereinafter also referred to as "(C+D)/E ratio") is preferably 0.3 to 100, and 1 to 100. The number is more preferably 1 to 55, even more preferably 10 to 55. If the (C+D)/E ratio is equal to or higher than the above lower limit, nulliness can be further suppressed. If the (C+D)/E ratio is below the above upper limit, the water drainage property, especially when the used tableware is washed after being left for a long time, will be further improved.
In addition, the mass of component (D) here is the amount as an acid form.

The mass ratio represented by ((D) component + (E) component)/(C) component (hereinafter also referred to as "(D+E)/C ratio") is preferably 1 to 50, more preferably 5 to 50. , 10 to 41 are more preferred, and 14 to 22 are particularly preferred. When the (D+E)/C ratio is within the above range, it is easy to achieve both improvement in drainage performance, especially when washed after used tableware is left for a long time, and prevention of sliminess.
In addition, the mass of component (D) here is the amount as an acid form.

<(F) component>
Component (F) is a glycol ether solvent.
By containing component (F) in the dishwashing detergent, due to the synergistic effect with component (C) and component (D), it improves water drainage, especially when washing after leaving used dishes for a long time. becomes higher.

Component (F) includes, for example, methyl glycol, methyl diglycol, methyl triglycol, ethyl diglycol, isopropyl glycol, isopropyl diglycol, butyl glycol, butyl diglycol, butyl triglycol, isobutyl glycol, isobutyl diglycol, hexyl glycol , hexyldiglycol, 2-ethylhexylglycol, 2-ethylhexyldiglycol, phenylglycol, phenyldiglycol, benzylglycol, benzyldiglycol, and the like. Among these, butyl diglycol is preferred from the viewpoint of further improving water drainage properties.
Component (F) may be used alone or in an appropriate combination of two or more.

The content of component (F) is preferably 0.1 to 5% by mass, more preferably 0.2 to 3% by mass, and even more preferably 0.5 to 2% by mass based on the total mass of the dishwashing detergent. . If the content of the component (F) is equal to or higher than the above lower limit, the water drainage property, particularly when the tableware after use is left for a long time and then washed, will be further improved. In addition, foaming properties are improved. If the content of the component (F) is below the above upper limit, sliminess can be further suppressed.

<Optional ingredients>
The dishwashing agent may contain optional components other than the above-mentioned components, as necessary, within a range that does not impair the effects of the present invention.
Optional components are appropriately selected in consideration of the dosage form and the like. Optional components include those commonly used in dishwashing detergents, specifically, solvents, surfactants other than component (A) and component (B), and hydrocarbons other than component (E). Trope agents, preservatives, pH adjusters, inorganic builders (eg, magnesium sulfate, zinc sulfate, zinc oxide, etc.), enzymes, fragrances, pigments, radical trapping agents, and the like.

Water is preferred as the solvent. Using water as a solvent makes it easier to prepare dishwashing detergents. In addition, it has better solubility in water when used in dishwashing detergents.
As water, ion exchange water, distilled water, tap water, etc. can be used.
The content of water is preferably 90% by mass or less, more preferably 40 to 85% by mass, and even more preferably 50 to 85% by mass, based on the total mass of the dishwashing detergent. If the water content is at least the above lower limit, gelation will be suppressed and the uniformity of the liquid will increase. When the water content is below the above upper limit, the content of each component can be ensured, the viscosity does not become too low, and the usability is excellent.

Examples of other surfactants include nonionic surfactants and cationic surfactants.
The nonionic surfactant is not particularly limited, and any general nonionic surfactant used in conventional dishwashing detergents can be used. Examples include oxyalkylene-added nonionic surfactants, nonionic surfactants represented by the following general formula (9), alkyl glycosides, and sorbitan fatty acid esters. Among these, polyoxyalkylene (carbon number 2-3) alkyl (carbon number 10-18) ether (average number of added moles of alkylene oxide 5-20) is preferred.
One type of nonionic surfactant may be used alone, or two or more types may be used in an appropriate combination.

R ⁶ -O-(R ⁷ O) _j -H...(8)
(In general formula (8), R ⁶ is a straight chain or branched hydrocarbon group having 10 to 18 carbon atoms, R ⁷ is a hydrocarbon group having 1 to 3 carbon atoms, and j is (R ⁷ O ), and is a number that satisfies 1≦j≦20.)

In the general formula (8), the carbon number of R ⁶ is 10 to 18, preferably 10 to 16, and more preferably 10 to 14. The hydrocarbon group for R ⁶ is preferably an alkyl group or an alkenyl group.
In general formula (8), the hydrocarbon group for R ⁷ is preferably an alkylene group, more preferably an ethylene group or a propylene group. Moreover, as (R ⁷ O), an oxyethylene group and an oxypropylene group may be mixed. When oxyethylene groups and oxypropylene groups are mixed, they may be mixed randomly or in blocks.
In general formula (8), j is 1 to 20, preferably 5 to 15.

R ⁸ -C(=O)-NH-(R ⁹ O) _k -H...(9)
(In general formula (9), R ⁸ is a straight chain or branched alkyl group having 5 to 19 carbon atoms, or a straight chain or branched alkenyl group having 5 to 19 carbon atoms, and R ⁹ is a straight chain or branched alkenyl group having 5 to 19 carbon atoms. ~4 linear or branched alkylene group, k represents the average number of repeats of (R ⁹ O), and is a number satisfying 1≦k≦20.)

In the general formula (9), R ⁸ has 5 to 19 carbon atoms, preferably 9 to 13 carbon atoms. R ⁸ is preferably an alkyl group.
In general formula (9), R ⁹ is preferably an ethylene group or a propylene group, and more preferably an ethylene group. Moreover, as (R ⁹ O), an oxyethylene group and an oxypropylene group may be mixed. When oxyethylene groups and oxypropylene groups are mixed, they may be mixed randomly or in blocks.
In the general formula (9), k is 1 to 20, preferably 1 to 4.

As nonionic surfactants, in addition to the effects of the present invention, polyoxyalkylene adducts represented by the general formula (8) can be used, since they are particularly easy to obtain the sustained foam required as the basic performance of dishwashing detergents. Among the type nonionic surfactants, those in which R ⁶ in general formula (8) is a branched hydrocarbon group are particularly preferred, and it is more preferably a hydrocarbon group derived from a branched primary alcohol. Preferably, garbet alcohol type nonionic surfactants are more preferable.
Examples of the garbet alcohol type nonionic surfactant include 2-propylheptyl alcohol ethoxylate and 2-ethylhexyl alcohol ethoxylate. Among these, 2-propylheptyl alcohol ethoxylate is preferred. The average number of moles of ethylene oxide added is preferably 6 to 14, more preferably 8 to 11, and most preferably 10.
Specific examples of 2-propylheptyl alcohol ethoxylate include "Lutensol XP-100" and "Lutensol XP-80" manufactured by BASF.
A specific example of 2-ethylhexyl alcohol ethoxylate includes the trade name "Nukol 1008" manufactured by Nippon Nyukazai Co., Ltd.

The content of the nonionic surfactant is preferably 1 to 15% by mass, more preferably 2 to 12% by mass, and even more preferably 4 to 8% by mass, based on the total mass of the dishwashing detergent. If the content of the nonionic surfactant is at least the above lower limit, foam sustainability will be improved. If the content of the nonionic surfactant is below the above upper limit, the oil stain cleaning power will be further enhanced and the foaming property will be improved.

The cationic surfactant is not particularly limited, and any general cationic surfactant used in conventional dishwashing detergents can be used, such as didecyldimethylammonium chloride, didecyldimethylammonium meth, Sulfate, 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)methylhydroxyethyl Examples include ammonium methosulfate and tri(stearoyloxyethyl)methyl methosulfate. Note that the "tallow alkyl" group has 14 to 18 carbon atoms.

The content of the cationic surfactant is preferably 3% by mass or less, more preferably 2% by mass or less, and even more preferably 1% by mass or less based on the total mass of the dishwashing detergent. If the content of the cationic surfactant is below the above upper limit, foaming properties and foam sustainability are likely to be improved.

The total content of all surfactants contained in the dishwashing detergent (total amount of surfactants) is preferably 6 to 50% by mass, and 10 to 50% by mass based on the total mass of the dishwashing detergent. It is more preferably 10 to 40% by weight, even more preferably 15 to 30% by weight. If the total amount of surfactant is within the above range, the oil stain cleaning power will be further enhanced. In particular, if the total amount of surfactants is below the above upper limit, gelation is unlikely to occur and the uniformity of the dishwashing detergent can be maintained well.

Examples of hydrotropic agents (excluding component (E)) include monohydric alcohols having 2 to 4 carbon atoms, glyceryl ethers having 4 to 10 carbon atoms, paratoluenesulfonic acid, paratoluenesulfonate, cumenesulfonic acid. , cumene sulfonate, benzoic acid, benzoate, and the like.
Examples of the monohydric alcohol having 2 to 4 carbon atoms include ethanol, n-propanol, isopropanol, normal butanol, secondary butanol, and tertiary butanol.
Examples of the glyceryl ether having 4 to 10 carbon atoms include glycerin and hexylglyceryl ether.
Among these, ethanol, paratoluenesulfonate, and benzoate are preferred from the viewpoint of increasing the dissolution effect of components (A) to (F) in the dishwashing detergent and the feeling of use.
One type of hydrotrope may be used alone, or two or more types may be used in an appropriate combination.
The content of the hydrotrope is preferably 1 to 30% by mass, more preferably 1 to 20% by mass based on the total mass of the dishwashing detergent.

Examples of the preservative include isothiazoline preservatives such as benzisothiazolinone, methylisothiazolinone, butylbenzisothiazolinone, chloromethylisothiazolinone, octylisothiazolinone, and dichlorooctylisothiazolinone. Among these, 1,2-benzisothiazolin-3-one and 2-methyl-4-isothiazolin-3-one are preferred.
The preservatives may be used alone or in an appropriate combination of two or more.
The content of the preservative is preferably 0.0002 to 0.01 mass % (2 to 100 mass ppm), and 0.0005 to 0.004 mass % (5 to 40 mass ppm) based on the total mass of the dishwashing detergent. ppm) is more preferable.

Examples of the pH adjuster include hydrochloric acid, sulfuric acid, phosphoric acid, glycolic acid, citric acid, sodium hydroxide, potassium hydroxide, monoethanolamine, diethanolamine, triethanolamine, and the like.
One type of pH adjuster may be used alone, or two or more types may be used in an appropriate combination.

It is assumed that the total content of all components contained in the dishwashing detergent is 100% by mass.

<Manufacturing method>
For example, dishwashing detergents can be made by adding components other than a pH adjuster to a portion of water, which is a solvent, mixing them, adjusting the pH to a desired value with a pH adjuster as necessary, and then removing the remainder of the water. It can be produced by adding

<pH>
The pH of the dishwashing detergent at 25° C. is preferably 6 to 8.
In the present invention, the pH (25°C) of the dishwashing agent indicates a value measured by a method based on JIS Z 8802:1984 "pH measurement method".
The pH of the dishwashing detergent may be adjusted using the above-mentioned pH adjuster.

<How to use>
A method of using the dishwashing agent, that is, a method of washing dishes, will be explained below.
A method for washing tableware is to attach a desired amount of dishwashing detergent to a cleaning tool and use this cleaning tool to scrub the object to be cleaned (scrubbing operation); the dishwashing detergent is dispersed in water. Examples include a method (immersion operation) in which the object to be cleaned is immersed in the cleaning liquid for an arbitrary period of time (immersion time) (immersion method). In the immersion operation, the object to be cleaned may be rubbed in the cleaning liquid with a cleaning tool, if necessary.
The scrubbing and soaking operations may be performed on tableware immediately after use, on tableware that has been left for a short time (for example, less than 5 hours) after use, or on tableware that has been left for a long time (for example, less than 5 hours) after use. This may be done on tableware that has been left unattended (for example, for about 5 to 24 hours).
After the scrubbing operation or soaking operation, the object to be cleaned is rinsed with water to wash away the dishwashing agent adhering to the object to be cleaned (rinsing operation). Washed tableware is obtained through a rinsing operation.

Examples of objects to be cleaned include tableware such as plates, chopsticks, and spoons. Moreover, the objects to be cleaned may be kitchen utensils such as cooking utensils such as pots, knives, and cutting boards. In the present invention, tableware and cooking utensils are collectively referred to as "tableware."

<Effect>
The dishwashing agent of the present invention described above contains, in addition to the (A) component and the (B) component, a specific amount or a specific ratio of the (C) component, (D) component, and (E) component. Therefore, sliminess can be reduced, and excellent drainage performance can be achieved even on dishes that have been left for a long time after use.
Therefore, if the dishwashing agent of the present invention is used, for example, even if used dishes are left unused and washed the next day, they have excellent water drainage properties, so the dishes can be dried after washing and stored in a cupboard, etc. The overall time it takes to complete the process can be reduced.

EXAMPLES Hereinafter, the present invention will be explained in detail with reference to Examples, but the present invention is not limited to the following description. The amounts of the components used in each example are pure equivalent values unless otherwise specified.

"Raw materials used"
The following compounds were used as component (A).
・A-1: Sodium polyoxyethylene alkyl ether sulfate (AES), in the above general formula (1), R ¹ = linear alkyl group having 12 to 14 carbon atoms, m = 0, n = 1, M ⁺ = Sodium, synthesized by the following synthesis method.
・A-2: Sodium polyoxyethylene alkyl ether sulfate (AES), in the above general formula (1), R ¹ = linear alkyl group having 12 to 14 carbon atoms, m = 0, n = 2, M ⁺ = Sodium (manufactured by BASF, trade name "Texapon N70T").
・A-3: Sodium polyoxyethylene alkyl ether sulfate (AES), in the above general formula (1), R ¹ = linear alkyl group having 12 to 14 carbon atoms, m = 0, n = 4, M ⁺ = Sodium, synthesized by the following synthesis method.
- A-4: Sodium secondary alkanesulfonate (SAS) having 14 to 17 carbon atoms (manufactured by Clariant Japan Co., Ltd., trade name "HOSTAPUR SAS 30A").
・A-5: Sodium alkylbenzene sulfonate (LAS) having 10 to 14 carbon atoms, product name "Teika Power L121" manufactured by Teika Co., Ltd., neutralized with sodium hydroxide.
- A-6: Di-2-ethylhexyl sodium sulfosuccinate (manufactured by Toho Chemical Industry Co., Ltd., trade name "Airol CT-1L").

(Synthesis method of A-1)
In a 4 L autoclave, 400 g of P&G's product name "CO1270 alcohol (C12/C14 = 75%/25%, mass ratio)" as raw material alcohol and 0.8 g of potassium hydroxide as a reaction catalyst were charged, and the autoclave was heated. After replacing the inside with nitrogen, the temperature was raised while stirring. Subsequently, 91 g of ethylene oxide was introduced and reacted while maintaining the temperature at 180° C. and the pressure at 0.3 MPa or less. The average number of moles of ethylene oxide added to the obtained 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 the flask was purged with nitrogen, and then 96 g of liquid sulfuric anhydride (sulfan) was slowly added dropwise while maintaining the reaction temperature at 40°C. After the dropwise addition was completed, stirring was continued for 1 hour (sulfation reaction) to obtain polyoxyethylene alkyl ether sulfuric acid.
Next, the obtained polyoxyethylene alkyl ether sulfuric acid was neutralized with an aqueous sodium hydroxide solution to obtain A-1.

(Synthesis method of A-3)
A-3 was obtained in the same manner as A-1 except that the amount of ethylene oxide introduced was changed from 91 g to 364 g.

As component (B), the following compounds were used.
・B-1: lauryl dimethylamine oxide (AX), in the above general formula (2), R ² = linear alkyl group having 12 carbon atoms, R ³ = methyl group, R ⁴ = methyl group, p = 0 (Manufactured by Lion Specialty Chemicals Co., Ltd., product name: "Cadenax DM12D-W").
・B-2: Coconut alkyldimethylamine oxide (AX), in the above general formula (2), R ² = coconut oil-derived (carbon number 12, 14) alkyl group, R ³ = methyl group, R ⁴ = methyl group , p=0 (manufactured by Lion Specialty Chemicals Co., Ltd., trade name: "Cadenax DMC-W").
- B-3: Lauryl diethylamine oxide (AX), in the above general formula (2), R ² = linear alkyl group having 12 carbon atoms, R ³ = ethyl group, R ⁴ = ethyl group, p = 0.
・B-4: Lauric acid amidopropyl dimethylamine oxide (APAX), in the above general formula (2), R ² = linear alkyl group having 11 carbon atoms, R ³ = methyl group, R ⁴ = methyl group, A=-C(=O)-NH-R ⁵ -, R ⁵ =propyl group, p=1 (manufactured by Clariant Japan Co., Ltd., trade name "GENAMINOX AP").

As component (C), the following compounds were used.
- C-1: Cationized cellulose (manufactured by Dow Chemical Company, trade name "UCARE JR 125", quaternary nitrogen content 1.9% by mass, viscosity of 2% by mass aqueous solution at 25° C. 130 mPa·s).
- C-2: Cationized cellulose (manufactured by Dow Chemical Company, trade name "UCARE JR 400", quaternary nitrogen content 1.9% by mass, viscosity of 2% by mass aqueous solution at 25°C 400 mPa·s).
・C-3: Cationized cellulose (manufactured by Lion Specialty Chemicals Co., Ltd., trade name "Leogard GP", quaternary nitrogen content 1.8% by mass, viscosity of 2% by mass aqueous solution at 25°C 300 mPa・s) .
- C-4: Cationized cellulose (manufactured by Dow Chemical Company, trade name "UCARE LR 30M", quaternary nitrogen content 1.0% by mass, viscosity of 2% by mass aqueous solution at 25° C. 30000 mPa·s).
Note that the viscosity of the 2% by mass aqueous solution at 25°C was measured based on the above measurement conditions.

The compound shown below was used as component (D).
- D-1: Citric acid (manufactured by Fuso Chemical Industry Co., Ltd., trade name "citric acid").
- D-2: Ethylenediaminetetraacetic acid (manufactured by Akzo Nobel Functional Chemicals, trade name "RYE-34 edetic acid").
- D-3: Trisodium methylglycine diacetate (manufactured by BASF, trade name "Trilon M Liquid").

The compounds shown below were used as component (E) and its substitute (component (E')).
- E-1: Polypropylene glycol (manufactured by Sanyo Chemical Industries, Ltd., trade name "Sannix GP-4000", triol type, weight average molecular weight 4000).
- E'-1: Polypropylene glycol (manufactured by Sanyo Chemical Industries, Ltd., trade name "SANNIX PP-3000", diol type, weight average molecular weight 3000).

The compound shown below was used as component (F).
- F-1: Butyl diglycol (butyl carbitol) (manufactured by Nippon Nyukazai Co., Ltd., trade name "Butyl diglycol").

The following compounds were used as optional components.
[Common components] Total 9.80203% by mass.
-XP-100...5.0% by mass.
-pTS-H...1.5% by mass.
-EtOH...2.0% by mass.
- Sodium benzoate...1.0% by mass.
-BIT...0.001% by mass.
・MIT...0.001% by mass.
・Fragrance: 0.3% by mass.
- Green No. 3...0.00003% by mass.

Note that the common components are as follows.
(Nonionic surfactant)
・XP-100: 2-propylheptyl alcohol ethoxylate, in the above general formula (8), R ⁶ = branched alkyl group having 10 carbon atoms, R ⁷ = ethylene group, j = 10 (manufactured by BASF, Lutensol XP -100).
(Hydrotrope)
- pTS-H: para-toluenesulfonic acid (manufactured by Kanto Kagaku Co., Ltd.).
- EtOH: Ethanol (manufactured by Nippon Alcohol Sales Co., Ltd.).
- Sodium benzoate: Sodium benzoate (manufactured by Fushimi Pharmaceutical Co., Ltd.).
(Preservative)
- BIT: 1,2-benzisothiazolin-3-one (manufactured by Arch Chemicals, trade name "PROXEL XL2").
- MIT: 2-methyl-4-isothiazolin-3-one (manufactured by Rohm & Haas Japan Co., Ltd., trade name "Neolon M-10").
(fragrance)
- Flavor: A 1:1 (mass ratio) mixture of fragrance composition A and fragrance composition B listed in Tables 1 to 6 of Japanese Patent Application No. 2017-085282.
(dye)
・Green No. 3: (manufactured by Kinmi Kasei Co., Ltd.).

[Other optional ingredients]
(pH adjuster)
・NaOH: Sodium hydroxide (manufactured by Kanto Kagaku Co., Ltd.).
・Sulfuric acid: (manufactured by Kanto Kagaku Co., Ltd.).
(solvent)
・Water: Ion exchange water.

"Examples 1 to 30, Comparative Examples 1 to 7"
<Preparation of dishwashing detergent>
1000 g of dishwashing detergent having the composition shown in Tables 1 to 6 was prepared according to the following procedure.
Component (A) and water (80% of the total water) were placed in a 1 L beaker and thoroughly stirred with a magnetic stirrer (manufactured by Fine, trade name "F-606N"). Next, the (B) component, the (C) component, the (D) component, the (E) component, the (F) component, and any components other than water and the pH adjuster (NaOH, sulfuric acid) (common components). and mixed. After mixing, add an appropriate amount of pH adjuster as necessary so that the pH at 25°C is 6 to 8, then add the remaining water so that the total amount is 100% by mass, and stir further. , a dishwashing detergent was obtained.
To determine the pH (25°C) of the dishwashing detergent, adjust the temperature of the dishwashing detergent to 25°C, and use a glass electrode pH meter (manufactured by Toa DKK Co., Ltd., product name "HM-30G") to measure the pH of the dishwashing detergent. The sample was directly immersed in a dishwashing detergent, and the pH was measured after 1 minute had elapsed. The measurement method was based on JIS Z 8802:1984 "pH measurement method".
The dishwashing detergents obtained in each example were evaluated for drainage and sliminess in the following manner. The results are shown in Tables 1-6.

<Evaluation>
(Evaluation of drainage)
1 g of olive oil and 5 g of water were placed on a ceramic plate with a diameter of 18.5 cm, and the plate was left for 24 hours to be cleaned.
Add 38g of tap water and 2g of dishwashing detergent to a dishwashing sponge measuring 11.5cm x 7.5cm x 3cm, rub it with your hands 10 times, and then rub the surface of one ceramic plate to be cleaned 10 times. I washed it. Then, rinse thoroughly with tap water. The ceramic dish was placed almost vertically against a commercially available tableware basket, and visually observed until the water flowed down from the ceramic plate and 100% of the entire surface of the ceramic plate was free of water. The time (100% water draining time) was measured and evaluated based on the following evaluation criteria. ○, ◎, ◎◎ are considered passing.
≪Evaluation criteria≫
◎◎: 100% water draining time is 120 seconds or less.
◎: 100% water draining time is more than 120 seconds and less than 180 seconds.
○: 100% water draining time is more than 180 seconds and less than 240 seconds.
Δ: 100% water draining time is more than 240 seconds and less than 300 seconds.
×: 100% water draining time exceeds 300 seconds.

(Evaluation with null)
The object to be cleaned was a 21 cm diameter ceramic plate with no dirt attached.
45 g of tap water and 5 g of dishwashing detergent were placed in a 100 mL beaker and stirred thoroughly. 40 g of diluted dishwashing agent was dropped onto a ceramic dish to be cleaned. This plate was rubbed with fingers 10 times, and the degree of sliminess was evaluated using the following evaluation criteria. In this evaluation method, five professional evaluators performed the evaluation, and the evaluation scores of each evaluator were totaled. The total score is classified according to the criteria, and those with a total score of 8 or more (○, ◎) are considered to have passed.
≪Evaluation criteria≫
3 points: Nullness is greatly reduced.
2 points: Nullness is considerably reduced.
1 point: Slightly reduced nulliness.
0 point: Nullness is not reduced at all.
≪Judgment criteria≫
◎: Total score of 5 expert evaluators is 15-12 points.
○: Total score of 5 expert evaluators is 11-8 points.
△: Total score of 5 expert evaluators is 7 to 4 points.
×: Total score of 5 expert evaluators is 3 to 0 points.

In Tables 1 to 6, "appropriate amount" is the amount required to bring the pH of the dishwashing detergent in each example to the value shown in the table. "Balance" is the amount of water (mass %) required to make the entire dishwashing detergent 100 mass %. In addition, components whose blending amounts are not listed in the table are not blended.
Moreover, "D/E ratio" is a mass ratio represented by (D) component/(E) component. "D/E'ratio" is a mass ratio represented by (D) component/(E') component. "A/B ratio" is a mass ratio represented by component (A)/component (B). "(C+D)/E ratio" is a mass ratio represented by ((C) component + (D) component)/(E) component. "(C+D)/E'ratio" is a mass ratio represented by ((C) component + (D) component)/(E') component. "(D+E)/C ratio" is a mass ratio represented by ((D) component + (E) component)/(C) component. "(D+E')/C ratio" is a mass ratio represented by ((D) component + (E') component)/(C) component.

As is clear from Tables 1 to 5, the dishwashing detergents of each example were able to reduce sliminess and exhibit excellent draining properties even on dishes that had been left for a long time after use.
On the other hand, as is clear from Table 6, the dishwashing detergent of Comparative Example 1 in which the content of component (C) was 0.05% by mass was poor in drainage performance.
The dishwashing detergent of Comparative Example 2, in which the content of component (C) was 2.5% by mass, was easily slimy.
The dishwashing detergent of Comparative Example 3 in which the content of component (D) is 0.25% by mass, and the dishwashing detergent of Comparative Example 5 in which the content of component (D) is 0.5% by mass, It had poor drainage properties.
The dishwashing detergent of Comparative Example 4 with a D/E ratio of 1000 was easily slimy.
The dishwashing detergent of Comparative Example 6, which used a propylene oxide adduct of dihydric alcohol instead of component (E), was prone to becoming slimy.
The dishwashing detergent of Comparative Example 7, which did not contain component (D) or component (E), had poor drainage properties. Also, it was easy to get wet.

Claims (6)

(A) Component: anionic surfactant,
(B) Component: at least one selected from amine oxide type surfactants and amphoteric surfactants,
(C) Component: a cationic polymer compound,
(D) Component: chelating agent,
(E) Component: Contains a propylene oxide adduct of tri- to hexa-hydric alcohol,
With respect to the total mass of the dishwashing detergent, the content of the component (C) is 0.1 to 2% by mass, and the content of the component (D) is 1 to 10% by mass as an acid type,
A dishwashing detergent having a mass ratio of component (D)/component (E) of 0.1 to 800. The dishwashing agent according to claim 1, wherein the mass ratio represented by the component (A)/component (B) is 0.5 to 2.5. The dishwashing agent according to claim 1 or 2, wherein the component (E) is a propylene oxide adduct of glycerin. The dishwasher according to any one of claims 1 to 3, wherein the mass ratio represented by (the (C) component + the (D) component)/the (E) component is 0.3 to 100. agent. The dishwashing agent according to any one of claims 1 to 4, wherein the mass ratio represented by (the (D) component + the (E) component)/the (C) component is 1 to 50. Component (F): The dishwashing agent according to any one of claims 1 to 5, further comprising a glycol ether solvent.