JP2017078098A - Liquid detergent for tableware - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a liquid detergent for tableware having excellent detergency and a reduced slimy feeling after rinsing.SOLUTION: A liquid detergent for tableware has (A) component: α-SF salt represented by general formula (A1) and comprising α-SF salt represented by the general formula (A2), (B) component: anion surfactant other than the (A) component, (C) component: betaine type amphoteric surfactant, and (D) component: nonionic surfactant, where a content of the α-SF salt represented by general formula (A2) in the (A) component is 50 mass% or more, and a mass ratio represented by {the (A) component+the (B) component)/the (D) component} is 1-20. In R-CH(SOM)-COOR(A1) and R-CH(SOM)-COOR(A2), Ris a C6-C22 hydrocarbon group; Ris a C14-C16 hydrocarbon group; Rand Rare a C1-C3 alkyl group; M is a counterion].SELECTED DRAWING: None

Description

  The present invention relates to a liquid detergent for tableware.

  As a method of cleaning dishes such as kitchen utensils, a liquid cleaning agent for tableware is dispersed in water to obtain a cleaning liquid, and a cleaning tool such as a sponge is used for scrubbing while immersing the cleaning object in this cleaning liquid (dipping method) Alternatively, there is a method (non-immersion method) in which a liquid detergent for tableware is taken in a cleaning tool such as a sponge and the object to be cleaned is scrubbed with the cleaning tool with the cleaning tool.

  As a liquid detergent for tableware, a liquid detergent having a high viscosity (for example, 1000 mPa · s or more) may be preferred. This is because the high viscosity makes the image of the high cleaning power of the liquid detergent for tableware. For example, in the liquid detergent for tableware described in Patent Document 1, high viscosity is achieved by blending alkylbetaine or sultain, and detergency is exerted by blending a hydrotropic surfactant (for example, α-sulfonated fatty acid ester). ing.

Special table 2013-508511 gazette

However, the cleaning power of the detergent composition of Patent Document 1 is not always satisfactory, and a detergent composition with excellent cleaning power is required. Therefore, when an anionic surfactant that has been used for the purpose of enhancing the cleaning power is added, the cleaning power is improved, while the feeling of sulliness due to the detergent component remaining on the cleaned surface after rinsing increases. A new problem arises that it is difficult to realize that it has been completed.
In view of the above circumstances, an object of the present invention is to provide a liquid detergent for tableware that has excellent detergency and has a reduced feeling of null after rinsing.

The present invention has the following aspects.
[1] Component (A): α-sulfo fatty acid alkyl ester salt containing α-sulfo fatty acid alkyl ester salt represented by the following general formula (A1) and represented by the following general formula (A2); B) component: an anionic surfactant other than the component (A), (C) component: a betaine amphoteric surfactant, and (D) component: a nonionic surfactant.
The content of the α-sulfo fatty acid alkyl ester salt represented by the following general formula (A2) in the component (A) is 50% by mass or more,
{The (A) component + the (B) component)} / The liquid detergent for tableware whose mass ratio represented by the (D) component is 1-20.
_{^{R 11 -CH (SO 3 M)}} -COOR 12 ··· (A1)
[In Formula (A1), R ¹¹ is a hydrocarbon group having 6 to 22 carbon atoms, R ¹² is an alkyl group having 1 to 3 carbon atoms, and M is a counter ion. ]
R ¹³ —CH (SO ₃ M) —COOR ¹⁴ (A2)
[In Formula (A2), R ¹³ is a hydrocarbon group having 14 to 16 carbon atoms, R ¹⁴ is an alkyl group having 1 to 3 carbon atoms, and M is a counter ion. ]

[2] The component (B) is a linear alkylbenzene sulfonate having a linear alkyl group having 10 to 14 carbon atoms, an alkyl group having 12 to 14 carbon atoms, and an alkyleneoxy having 1 to 4 carbon atoms. Including at least one selected from the group consisting of polyoxyalkylene alkyl ether sulfates having an average group repeat number of 1 to 3 and alkyl sulfate esters having an alkyl group of 10 to 20 carbon atoms, [1] Liquid detergent for tableware as described in 1.
[3] The liquid detergent for tableware according to [1] or [2], wherein a mass ratio represented by the component (A) / the component (C) is 0.5 to 8.0.
[4] The component (D) has an alkyl group having 10 to 16 carbon atoms and has a degree of polymerization of 1.0 to 2.0; an alkyl polyglucoside having 10 to 12 carbon atoms, At least one selected from the group consisting of polyoxyalkylene alkyl ethers having an average number of repeating alkyleneoxy groups having 1 to 4 carbon atoms of 7 to 20; and fatty acid alkanolamides having alkanoyl groups having 10 to 18 carbon atoms; The liquid detergent for tableware as described in any one of [1]-[3] containing.
[5] {mass ratio represented by {the component (A) + the component (B)} / {the component (A) + the component (B) + the component (C) + the component (D)} The liquid detergent for tableware as described in any one of [1] to [4], which is 0.70 to 0.90.
[6] The mass ratio represented by the component (D) / {the component (A) + the component (B) + the component (C) + the component (D)} is 0.10 to 0.24. The liquid detergent for tableware as described in any one of [1] to [5].

  ADVANTAGE OF THE INVENTION According to this invention, while exhibiting the outstanding cleaning power, the washing | cleaning agent for tableware with which the feeling of nulliness after a rinse was reduced can be provided.

(Liquid cleaning agent)
The liquid detergent for tableware of the present invention (hereinafter sometimes simply referred to as a liquid detergent) is a composition containing the components (A) to (D), and the following general formula (A2) in the component (A): ) And the mass ratio represented by {(A) component + (B) component) / (D) component} is 1; It is a composition which is ~ 20.

<(A) component: α-sulfo fatty acid alkyl ester salt>
The component (A) is an α-sulfo fatty acid alkyl ester salt represented by the following general formula (A1), and an α-sulfo fatty acid alkyl ester salt represented by the following general formula (A2) (hereinafter referred to as component (a2)) Contain).
By containing the component (A), the liquid detergent exhibits good foaming and cleaning power even in water having a relatively high hardness. Hereinafter, the α-sulfo fatty acid alkyl ester salt may be referred to as an α-SF salt. The “α-SF salt” in the present invention is a compound in which a sulfo group is bonded to a carbon atom at the α-position of a fatty acid alkyl ester, and the sulfo group forms a salt.
_{^{R 11 -CH (SO 3 M)}} -COOR 12 ··· (A1)
[In Formula (A1), R ¹¹ is a hydrocarbon group having 6 to 22 carbon atoms, R ¹² is an alkyl group having 1 to 3 carbon atoms, and M is a counter ion. ]
R ¹³ —CH (SO ₃ M) —COOR ¹⁴ (A2)
[In Formula (A2), R ¹³ is a hydrocarbon group having 14 to 16 carbon atoms, R ¹⁴ is an alkyl group having 1 to 3 carbon atoms, and M is a counter ion. ]

In formula (A1), R ¹¹ is a hydrocarbon group having 6 to 22 carbon atoms. R ¹¹ may be linear, branched, or cyclic. Among these, R ¹¹ is preferably a straight chain or a branched chain from the viewpoint of further increasing the detergency of the liquid detergent and further reducing the feeling of nulliness after rinsing.
R ¹¹ may be a saturated hydrocarbon group or an unsaturated hydrocarbon group.
R ¹¹ is preferably an aliphatic hydrocarbon group, more preferably a linear or branched alkyl group or a linear or branched alkenyl group, and even more preferably a linear alkyl group.
The number of carbon atoms in R ¹¹ is 6 to 22, 8 to 20, more preferably from 10 to 18, 12 to 16 is more preferred. When the carbon number of R ¹¹ is within the above range, the cleaning power of the liquid cleaning agent can be further increased, and the feeling of nulliness after rinsing can be further reduced.

In formula (A1), R ¹² is an alkyl group having 1 to 3 carbon atoms. R ¹² may be a straight chain or a branched chain. The number of carbon atoms of R ¹² is 1 to 2 are preferred, 1 being more preferred. Examples of R ¹² include a methyl group, an ethyl group, an n-propyl group, and an isopropyl group. R ¹² is preferably a methyl group or an ethyl group, and more preferably a methyl group.

In formula (A1), M is a counter ion. M may be any as long as it can form a water-soluble salt with R ¹¹ CH (COOR ¹² ) SO ₃ ^— . Examples of the counter ion include alkali metal ions, alkaline earth metal ions (1/2 atoms), alkanol ammonium, and ammonium. Examples of the alkali metal that can be the counter ion include sodium and potassium. Examples of the alkaline earth metal that can be a counter ion include magnesium. Examples of the alkanol ammonium that can be the counter ion include monoethanolamine, diethanolamine, and triethanolamine.
As M, an alkali metal ion is preferable, and a sodium ion is particularly preferable.
The α-SF salt represented by the formula (A1) may be used singly or in combination of two or more.

The liquid detergent according to the present invention contains the component (a2) as at least a part of the component (A). By containing the component (a2), the liquid detergent exhibits good foaming and cleaning power even in water having a relatively high hardness, and can further reduce the feeling of nulliness after rinsing.
In the formula (A2), R ¹³ is a hydrocarbon group having 14 to 16 carbon atoms. R ¹³ may be linear, branched, or cyclic. Among these, R ¹³ is preferably a straight chain or a branched chain from the viewpoint of exhibiting an excellent detergency and further reducing a feeling of nullness after rinsing.
R ¹³ may be a saturated hydrocarbon group or an unsaturated hydrocarbon group.
R ¹³ is preferably an aliphatic hydrocarbon group, more preferably a linear or branched alkyl group or a linear or branched alkenyl group, and even more preferably a linear alkyl group.

R ^{14 in} formula (A2) is the same as R ¹² in formula (A1), and both may be the same or different.
M in formula (A2) is the same as M in formula (A1), and both may be the same or different.

(A2) A component may be used individually by 1 type and may be used in combination of 2 or more type.
As the component (a2), R ¹³ is an α-SF salt having 14 carbon atoms (hereinafter sometimes referred to as (a21) component) and R ¹³ is an α-SF salt having 16 carbon atoms (hereinafter referred to as (a22) component). And mixtures thereof are preferred. By including such a mixture, the detergency of the liquid cleaning agent is improved, the feeling of nulliness after rinsing is further reduced, and the solubility in water is increased.
The component (a2) preferably has a mass ratio represented by component (a21) / component (a22) (hereinafter also referred to as a21 / a22 ratio) of 90/10 to 50/50, 85 What is / 15-70 / 30 is more preferable.
When the a21 / a22 ratio is within the above range, the cleaning power of the liquid cleaning agent is improved, the feeling of nulliness after rinsing is further reduced, and the solubility in water is increased.

(A) component, (a2) other than the component (A) component (i.e., formula (A1) in the carbon number of ^{R 11} is less than 14 alpha-SF salt or the carbon number of ^{R 11} is 16 more than the α- SF salt) may or may not be contained.

The content of the component (a2) in the component (A) is 50% by mass or more with respect to 100% by mass of the total mass of the component (A), preferably 70% by mass or more, more preferably 90% by mass or more, 100 mass% is more preferable.
By being the said range, while the cleaning power of a liquid cleaning agent increases, the feeling of nulliness after a rinse can be reduced.

  The content of the component (A) with respect to the total mass of the liquid detergent is, for example, preferably 0.1 to 10% by mass, more preferably 0.5 to 8% by mass, further preferably 1 to 5% by mass, 4.5% by mass is particularly preferred. When the content of the component (A) in the liquid detergent is not less than the above lower limit, the cleaning power of the liquid detergent can be further enhanced. When the content of the component (A) in the liquid detergent is not more than the above upper limit, the feeling of nulliness after rinsing of the liquid detergent can be further reduced.

  Component (A) with respect to the total amount of surfactant in the liquid cleaning agent (total amount of surfactants blended as components (A) to (D) and optional components, hereinafter sometimes referred to as surfactant total amount)) The content is preferably 0.5 to 35% by mass, more preferably 2.5 to 30% by mass, and still more preferably 5 to 20% by mass. When the content of the component (A) with respect to the total amount of the surfactant is not less than the above lower limit value, better detergency can be obtained. When the content of the component (A) with respect to the total amount of the surfactant is not more than the above upper limit value, the liquid detergent is easily dispersed in water. For this reason, while preparing a washing | cleaning liquid, the said liquid cleaning agent is easy to rinse at the time of washing | cleaning of tableware, and a feeling of null can be reduced more.

<(B) component: anionic surfactant other than (A) component>
The component (B) is an anionic surfactant other than the component (A). A liquid detergent exhibits the outstanding detergency by containing (B) component.

Examples of the component (B) include linear alkylbenzene sulfonates; α-olefin sulfonates; polyoxyalkylene alkyl ether sulfates, linear or branched alkyl sulfate salts; alkyl ether sulfate salts or alkenyl ethers. Sulfuric acid ester salt; Alkanesulfonic acid salt having an alkyl group.
Examples of these salts include alkali metals such as sodium and potassium, alkaline earth metals such as magnesium and calcium, alkanolamines such as monoethanolamine, diethanolamine and triethanolamine, and ammonium. Among these, alkali metals are preferable.

As the linear alkylbenzene sulfonate, a linear alkylbenzene sulfonate having 8 to 20 carbon atoms in the linear alkyl group is preferable, and a linear alkylbenzene sulfonate having 10 to 14 carbon atoms is more preferable.
As the α-olefin sulfonate, an α-olefin sulfonate having 10 to 20 carbon atoms is preferable, and an α-olefin sulfonate having 10 to 16 carbon atoms is more preferable.
The alkyl sulfate ester salt is preferably an alkyl sulfate ester salt having a linear or branched alkyl group having 10 to 20 carbon atoms, and an alkyl sulfate ester salt having a linear or branched alkyl group having 10 to 16 carbon atoms. Are more preferable, and alkyl sulfate ester salts having a linear alkyl group having 10 to 14 carbon atoms are more preferable.
As the alkyl ether sulfate ester salt, a polyoxyethylene alkyl ether sulfate ester salt having a linear or branched alkyl group having 10 to 20 carbon atoms and an ethylene oxide having an average repeating number of 1 to 10 is preferred.
As the alkenyl ether sulfate, a polyoxyethylene alkenyl ether sulfate ester salt having a linear or branched alkenyl group having 10 to 20 carbon atoms and an ethylene oxide having an average repeating number of 1 to 10 is preferred.
As the alkane sulfonate, a secondary alkane sulfonate having an alkyl group having 10 to 20 carbon atoms is preferable, and a secondary alkane sulfonate having an alkyl group having 14 to 18 carbon atoms is more preferable.
(B) A component may be used individually by 1 type and may be used in combination of 2 or more type.

As the component (B), one or more anionic surfactants selected from polyoxyalkylene alkyl ether sulfates, alkyl sulfate esters, and linear alkylbenzene sulfonates represented by the following general formula (B1) are preferable. .
^{_{R 1 -O - [(PO)}} m / (EO) n] -SO 3 M ··· (B1)
[In Formula (B1), R ¹ 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, and M is a counter ion. . PO represents a propyleneoxy group, and EO represents an ethyleneoxy group. m is the average number of repetitions of (PO) (average number of added moles), 0 ≦ m <1; n is the average number of repetitions of (EO), and 0 ≦ n ≦ 4 is there. m and n are not 0 at the same time. ]

In formula (B1), R ¹ has 8 to 18 carbon atoms, preferably 10 to 14 and more preferably 12 to 14.
R ¹ may be linear or branched.
R ¹ may be an alkyl group or an alkenyl group.
R ¹ is preferably an alkyl group derived from an oil and fat raw material in order to improve detergency and consider the environment. Suitable fats and oils include palm kernel oil, coconut oil and the like.

In [(PO) _m / (EO) _n ] in the formula (B1), when m and n are greater than 0, PO and EO may be arranged in a block form or in a random form. May be.
In the _{[(PO) m / (EO} ) n], may be bound PO is the "-SO ₃ M", may EO is bound to "-SO ₃ M".
M in formula (B1) is the same as M in formula (A1), and both Ms may be the same as or different from each other.

  Examples of the compound represented by the formula (B1) include polyoxyethylene (1) linear alkyl (C12) sulfate sodium salt, polyoxyethylene (2) linear alkyl (C12) sulfate sodium salt, polyoxyethylene Ethylene (4) linear alkyl (C12) sulfate sodium salt, polyoxypropylene (0.4) polyoxyethylene (1.5) linear alkyl (C12) sulfate sodium salt, polyoxyethylene (1) linear Alkyl (C12 / 14 = 75/25; derived from natural fats and oils) sulfate sodium salt, polyoxyethylene (2) Linear alkyl (C12 / 14 = 75/25; derived from natural fats and oils) sulfate sodium salt, polyoxyethylene ( 4) Linear alkyl (C12 / 14 = 75/25; derived from natural fats and oils) sulfate ester na Potassium salts, polyoxypropylene (0.4) polyoxyethylene (1.5) a linear alkyl (C12 / 14 = 75/25; derived from a natural fat) and sulfuric ester sodium salt.

  As the component (B), polyoxyethylene (1) linear alkyl (C12 / 14 = 75/25; derived from natural fats and oils) sulfate from the viewpoint of further increasing the detergency and further reducing the feeling of nulliness after rinsing. Sodium salt, polyoxyethylene (2) linear alkyl (C12 / 14 = 75/25; derived from natural fats and oils) sulfate sodium salt, alkyl (C12) sulfate sodium salt, linear alkyl (C10-14) benzenesulfonic acid Sodium salt is preferred.

In the example of the above compound, when only a numerical value is described in (), this numerical value indicates the number of moles of oxyethylene, and “C ●●” in () indicates “carbon number ●●”. . For example, “polyoxyethylene (1) linear alkyl (C12) sulfate ester sodium salt” means that the average number of repeating oxyethylene groups is 1 (the average number of moles of ethylene oxide added is 1), and the carbon of the linear alkyl group. It means that the number is 12.
“C12 / 14 = 75/25; derived from natural fats and oils” means a mixture of a compound having a linear alkyl group having 12 carbon atoms and a compound having a linear alkyl group having 14 carbon atoms (mixing ratio: mass). It means that the ratio is 75/25) and is a linear alkyl group derived from natural fats and oils.

The content of the component (B) with respect to the total mass of the liquid detergent is preferably 8 to 20% by mass, and preferably 12 to 18% by mass.
(B) When the compounding quantity of a component is more than the said lower limit, it is easy to raise detergency, and the null feeling after a rinse can be reduced more as it is below the said upper limit.

  The content of the component (B) in the total amount of the surfactant is preferably 55 to 90% by mass, and more preferably 60 to 77% by mass. When the content of the component (B) in the total amount of the surfactant is equal to or more than the above lower limit value, it is easy to increase the cleaning power of the liquid cleaning agent. When the content of the component (B) in the total amount of the surfactant is not more than the above upper limit value, it is possible to further reduce the feeling of nulliness after rinsing.

<(C) component: betaine type amphoteric surfactant>
The component (C) is a betaine amphoteric surfactant.
As the component (C), a conventionally known betaine type amphoteric surfactant can be used.
As the component (C), for example, an alkyl (alkenyl) amide betaine type amphoteric surfactant represented by the following general formula (C1) (hereinafter sometimes referred to as the component (c1)); the following general formula (C2) And an alkyl (alkenyl) betaine type amphoteric surfactant represented by the formula (hereinafter also referred to as component (c2)).

In formula (C1), R ²¹ represents an alkyl group having 8 to 20 carbon atoms or an alkenyl group having 8 to 20 carbon atoms.
The number of carbon atoms in R ²¹ is preferably 9-15. When the number of carbon atoms of R ²¹ is not less than the above lower limit, easily increase the viscosity of the liquid detergent. When the carbon number of R ²¹ is less than or equal to the above upper limit, the solubility of the component (C) in the liquid detergent becomes good, and precipitation during storage is less likely to occur.
R ²¹ may be a straight chain or a branched chain, and among them, a straight chain is preferable.
R ²¹ is preferably a linear or branched alkyl group, and more preferably a linear alkyl group.

R ²² is an alkylene group having 1 to 5 carbon atoms.
The number of carbon atoms in R ²² is preferably 2-3.
R ²² may be a straight chain or a branched chain, and among them, a straight chain is preferable.

R ²³ and R ²⁴ are each independently a hydrogen atom or an alkyl group having 1 to 3 carbon atoms. R ²³ and R ²⁴ are preferably a linear or branched alkyl group.
R ²⁵ is an alkylene group having 1 to 5 carbon atoms. The number of carbon atoms of R ²⁵ is 1 to 3 are preferred. R ²⁵ may be a straight chain or a branched chain, and among them, a straight chain is preferable.

Examples of the component (c1) include octylamidopropyl-N, N-dimethylacetic acid betaine (amidopropyloctane octoate), lauramidopropyl-N, N-dimethylacetic acid betaine (amidopropylbetaine laurate), and stearyl-N. N-dimethylacetic acid betaine (amidopropyl betaine stearate), stearyl-N, N-dimethyl-2-hydroxypropyl betaine, coconut oil fatty acid amidopropyl betaine, and the like. Among these, coconut oil fatty acid amidopropyl betaine is preferable as the component (c1). By using coconut oil fatty acid amidopropyl betaine as the component (C), it is possible to improve detergency and to further reduce the feeling of nullness after rinsing.
These (c1) components may be used individually by 1 type, and 2 or more types may be used in combination.

  The component (c1) is synthesized by a conventionally known production method. A commercial product of the component (c1) can also be purchased. For example, “Enagicol L-30B” (trade name) manufactured by Lion Co., Ltd. can be mentioned as a commercially available product of amidopropyl betaine laurate. Moreover, Nikko Chemicals "NIKKOL AM-3130N" (brand name) can be illustrated as a commercial item of palm oil fatty-acid amide propyl betaine.

In formula (C2), R ³¹ 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.
The number of carbon atoms in R ³¹ is preferably 10 to 16. When the number of carbon atoms of R ³¹ is not less than the above lower limit, easily increase the viscosity of the liquid detergent. When the carbon number of R ³¹ is not more than the above upper limit value, the solubility of the component (C) in the liquid detergent becomes better, and precipitation during storage is less likely to occur.
R ³¹ may be a straight chain or a branched chain, and among them, a straight chain is preferable.
R ³¹ is preferably an alkyl group.

In the formula (C2), R ³² and R ³³ are each independently a linear or branched alkyl group having 1 to 4 carbon atoms or a linear or branched alkenyl group having 2 to 4 carbon atoms.
The number of carbon atoms of R ³² and ^{R 33,} 1-2 is preferred.
R ³² and R ³³ may be a straight chain or a branched chain, and among them, a straight chain is preferable.
R ³² and R ³³ are preferably alkyl groups.

R ³⁴ is a linear or branched alkylene group having 1 to 6 carbon atoms or a linear or branched hydroxyalkylene group having 1 to 6 carbon atoms.
The number of carbon atoms of R ³⁴ is 1 to 3 are preferred.
R ³⁴ may be a straight chain or a branched chain, and among them, a straight chain is preferable.
R ³⁴ is preferably an alkylene group.

Examples of the component (c2) include coconut oil alkyldimethylaminoacetic acid betaine, lauryldimethylaminoacetic acid betaine, palmityldimethylaminoacetic acid betaine, and stearyldimethylaminoacetic acid betaine. Among these, as the component (c2), lauryldimethylaminoacetic acid betaine is preferable. These (c2) components may be used individually by 1 type, and 2 or more types may be used in combination.
The component (c2) is synthesized by a conventionally known production method. Commercial products of the component (c2) can also be purchased. For example, “Levon LD-36” manufactured by Sanyo Kasei Kogyo Co., Ltd., “Obazoline LB-SF” manufactured by Toho Chemical Co., Ltd., and the like are commercially available products of lauryldimethylaminoacetic acid betaine. Moreover, “Amphitor 86B” manufactured by Kao Corporation can be exemplified as a commercially available product of stearyldimethylaminoacetic acid betaine.

As the component (C), the component (c1) is preferable. (C1) It is easy to raise the viscosity of a liquid cleaning agent as it is a component.
(C) A component may be used individually by 1 type and may be used in combination of 2 or more type.

  0.5-5 mass% is preferable and, as for content of (C) component with respect to the total mass of a liquid detergent, 1-3 mass% is more preferable. (C) It is easy to raise the viscosity of a liquid detergent as content of a component is more than the said lower limit. When the content of the component (C) is not more than the above upper limit value, it is possible to further reduce the feeling of nulliness after rinsing.

  1-20 mass% is preferable and, as for content of (C) component in the said surfactant total amount, 4-12 mass% is more preferable. When the content of the component (C) in the total amount of the surfactant is not less than the above lower limit value, the viscosity of the liquid cleaning agent can be easily increased. When the content of the component (C) in the total amount of the surfactant is not more than the above upper limit value, it is possible to further reduce the feeling of nulliness after rinsing.

  In the liquid detergent, the mass ratio (A / C ratio) of both represented by the component (A) / (C) is preferably 0.5 to 8, more preferably 1 to 6, and 1 to 4.5. Is more preferable. When the A / C ratio is equal to or higher than the lower limit, the feeling of nulliness after rinsing can be further reduced. When the A / C ratio is less than or equal to the above upper limit value, it is easier to increase the cleaning power of the liquid cleaning agent.

<(D) component: nonionic surfactant>
The component (D) is a nonionic surfactant (nonionic surfactant).
By including the component (D) in addition to the components (A) to (C), the feeling of nulliness after rinsing can be reduced.

As the component (D), known nonionic surfactants can be used. For example, polyoxyalkylene addition type nonionic surfactants such as polyoxyalkylene alkyl ethers and ester type polyoxyalkylene alkyl ethers; Glucosides (alkyl glucosides), alkyl monoglyceryl ethers; fatty acid amide derivatives such as fatty acid alkanolamides and alkylmethyl glucamides; long chain fatty acid esters such as sorbitan fatty acid esters, polyoxyalkylene fatty acid esters, fatty acid glycoside esters, fatty acid methyl glycoside esters Compound etc. are mentioned.
(D) A component may be used individually by 1 type and may be used in combination of 2 or more type as appropriate.

As a suitable component (D), for example, an alkylpolyglucoside having an alkyl group having 10 to 16 carbon atoms and having a polymerization degree of 1.0 to 2.0 (hereinafter sometimes referred to as component (d1)). A polyoxyalkylene alkyl ether having an alkyl group having 10 to 12 carbon atoms and an average number of repeating alkyleneoxy groups having 1 to 4 carbon atoms of 7 to 20 (hereinafter sometimes referred to as component (d2)). And at least one selected from the group consisting of fatty acid alkanolamides having an alkanoyl group (acyl group) having 10 to 18 carbon atoms (hereinafter sometimes referred to as (d3) component).
By including one or more of the components (d1) to (d3), the cleaning power becomes better in addition to the reduction of the feeling of nulliness after rinsing.
Among the components (d1) to (d3), the component (d1) is particularly preferable because it exhibits excellent detergency and can further reduce the feeling of nullness after rinsing.

The alkyl group contained in the component (d1) may be linear, branched or cyclic, and is preferably linear or branched, and more preferably linear. 10-16 are preferable and, as for carbon number of the said alkyl group, 10-14 are more preferable.
The polymerization degree of the component (d1) is preferably 1.0 to 2.0.
Examples of the component (d1) include coconut alkyl (carbon number 8 to 14) poly (degree of polymerization 1.5) glucoside, coconut alkyl (carbon number 12 to 14) poly (degree of polymerization 1.2) glucoside and the like.
(D1) A component may be used individually by 1 type and may be used in combination of 2 or more type.

As the component (d2), for example, a compound represented by the following general formula (D2) is preferable.
R ⁴¹ —O— (R ⁴² O) _q —H (D2)
[Wherein, R ⁴¹ represents a linear or branched hydrocarbon group having 10 to 18 carbon atoms, R ⁴² represents a hydrocarbon group having 1 to 4 carbon atoms, and q represents an average repeat of (R ⁴² O). It is a number from 1 to 20 representing a number. ]

In formula (D2), R ⁴¹ is preferably an alkyl group having 10 to 18 carbon atoms or an alkenyl group having 10 to 18 carbon atoms, which may be linear, branched or branched. It is preferable that
The number of carbons of R ⁴¹ is preferably 10 to 16, more preferably 10 to 14, and even more preferably 10 to 12, since the detergency against oil stains is improved.
R ⁴² is preferably an alkylene group having 1 to 3 carbon atoms, and more preferably an alkylene group having 2 to 3 carbon atoms.
(R ⁴² O) is preferably an oxyalkylene group having 1 to 3 carbon atoms, and more preferably an oxyalkylene group having 2 to 3 carbon atoms. (R ⁴² O) may be only one kind, or two or more kinds may be mixed. When two or more kinds are mixed, the arrangement of each oxyalkylene group may be random or block.
5-20 are preferable, as for the average repeating number of (R ^<42 > O) which q represents, 7-20 are more preferable, and 9-15 are more preferable.
The component (d2) may be a mixture of molecules having different numbers of (R ⁴² O) repeats in the formula (D2).

Preferable (d2) component is, for example, R ⁴¹ = branched (2-propylheptyl) alkyl group having 10 carbon atoms, q = 10, (R ⁴² O) ₁₀ = polyoxyalkylene (average number of repetitions 10) Component (d2): R ⁴¹ = a linear alkyl group having 12/14 carbon atoms, q = 15, (R ⁴² O) ₁₅ = polyoxyalkylene (average number of repetitions 15) (d2) component, etc. It is done.
Here, the component (d2) having “R ⁴¹ = linear alkyl group having 12/14 carbon atoms” means that R ⁴¹ = component (d2) having a linear alkyl group having 12 carbon atoms, and R ⁴¹ = Indicates that this is a mixture with the component (d2) having a linear alkyl group having 14 carbon atoms.
(D2) A component may be used individually by 1 type and may be used in combination of 2 or more type.

Preferred examples of the component (d3) include lauric acid diethanolamide, coconut oil fatty acid diethanolamide, myristic acid diethanolamide, lauric acid monoethanolamide, coconut fatty acid monoethanolamide, and the like.
(D3) A component may be used individually by 1 type and may be used in combination of 2 or more type.

  1-6 mass% is preferable and, as for content of (D) component with respect to the gross mass of a liquid detergent, 2-4 mass% is more preferable. (D) When content of a component is more than the said lower limit, the feeling of nulliness after a rinse can be reduced more. (D) When content of a component is below the said upper limit, while being able to reduce the feeling of a null after rinsing more, foaming of a liquid detergent becomes more favorable and it is easy to raise cleaning power.

  5-30 mass% is preferable and, as for content of (D) component in the said surfactant total amount, 8-18 mass% is more preferable. When the content of the component (D) in the total amount of the surfactant is not less than the above lower limit value, it is possible to further reduce the feeling of nulliness after rinsing. (D) When content of a component is below the said upper limit, while being able to reduce the feeling of a null after rinsing more, foaming of a liquid detergent becomes more favorable and it is easy to raise cleaning power.

In the liquid detergent, the mass ratio {(A + B) / D ratio} represented by {(A) component + (B) component) / (D) component} is 1-20, preferably 2-18, 3-15 are more preferable and 4-10 are still more preferable.
When the {(A + B) / D} ratio is not less than the lower limit of the above range, the foaming of the liquid cleaning agent becomes better and the cleaning power can be more easily enhanced.
When the {(A + B) / D} ratio is not more than the upper limit of the above range, the feeling of nulliness after rinsing can be further reduced.

  In the liquid detergent, the mass ratio (A / D ratio) represented by the component (A) / component (D) is preferably 0.15 to 3.00, more preferably 0.20 to 2.00, 0 30 to 1.50 is more preferable. When the A / D ratio is not less than the above lower limit value, the cleaning power of the liquid cleaning agent tends to be more easily increased. When the A / D ratio is not more than the above upper limit value, the feeling of nulliness after rinsing tends to be further reduced.

  In the liquid detergent, the mass ratio (B / D ratio) represented by component (B) / component (D) is preferably 2.50 to 16.00, more preferably 4.00 to 10.00, and more preferably 5 More preferably, it is 0.00 to 8.00. When the B / D ratio is equal to or higher than the lower limit, the cleaning power of the liquid cleaning agent tends to be easily increased. When the B / D ratio is not more than the above upper limit, there is a tendency that the feeling of nulliness after rinsing can be further reduced.

In the liquid detergent, the mass ratio represented by {the (A) component + the (B) component} / {the (A) component + the (B) component + the (C) component + the (D) component}. The {(A + B) / (A + B + C + D)} ratio is preferably 0.70 to 0.90, and more preferably 0.75 to 0.85.
When the {(A + B) / (A + B + C + D)} ratio is not less than the above lower limit value, the cleaning power of the liquid cleaning agent tends to be more easily increased.
When the {(A + B) / (A + B + C + D)} ratio is equal to or less than the above upper limit value, the null feeling after rinsing tends to be more easily reduced.

In the liquid detergent, the mass ratio {D / (A + B + C + D)} ratio represented by the component (D) / {the component (A) + the component (B) + the component (C) + the component (D)} Is preferably 0.10 to 0.24, more preferably 0.12 to 0.20.
When the {(D) / (A + B + C + D)} ratio is not less than the above lower limit value, the feeling of nulliness after rinsing tends to be more easily reduced.
If the {(D) / (A + B + C + D)} ratio is not more than the above upper limit value, the cleaning power of the liquid cleaning agent tends to be more easily increased.

<Optional component>
The liquid detergent according to the present invention may contain optional components other than the components (A) to (D). The kind and amount of the optional component are not particularly limited as long as they do not impair the gist of the present invention, and components blended in known tableware liquid detergents are applicable. Examples of such optional components include surfactants (optional surfactants) other than the components (A) to (D), hydrotropes, pH adjusters, bleaching components, metal scavenging components, radical trapping agents, and perfumes. , Water, pigments and the like.

  As an optional cationic surfactant, for example, didecyl dimethyl ammonium chloride, didecyl dimethyl ammonium methosulfate, distearyl dimethyl ammonium chloride, dioctyl dimethyl ammonium chloride, distearyl dihydroxyethyl ammonium chloride, di-tallow alkyl dimethyl ammonium chloride, Di (stearoyloxyethyl) dimethylammonium chloride, di (oleoyloxyethyl) dimethylammonium chloride, di (palmitoyloxyethyl) dimethylammonium methosulfate, di (stearoyloxyisopropyl) dimethylammonium chloride, di (oleoyloxyisopropyl) dimethyl Ammonium chloride, di (oleoyloxybuty ) Dimethyl ammonium chloride, di (stearoyl oxy ethyl) methyl-hydroxyethyl ammonium methosulfate, tri (stearoyl oxyethyl) and methyl methosulfate and the like. The “beef tallow alkyl” group has 14 to 18 carbon atoms.

  The total amount of the surfactant relative to the total mass of the liquid detergent is, for example, preferably 10 to 40% by mass, and more preferably 12 to 30% by mass. When the total amount of the surfactant is not less than the above lower limit, the viscosity of the liquid detergent can be easily increased. It is easy to adjust the compounding quantity of components other than surfactant suitably that surfactant total amount is below the said upper limit.

Examples of the optional hydrotrope include monohydric alcohol having 2 to 4 carbon atoms, glyceryl ether having 4 to 10 carbon atoms, toluene sulfonic acid, toluene sulfonate, cumene sulfonic 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 hexyl glyceryl ether.
Among the above, ethanol is preferable because it is excellent in solubility of the components (A) to (D) and has a good feeling in use.
A hydrotrope agent may be used individually by 1 type, and may be used in combination of 2 or more type.
When the hydrotrope agent is used, the content of the hydrotrope agent with respect to the total mass of the liquid detergent is preferably 0.1 to 10% by mass, more preferably 0.1 to 5% by mass, and 0.1 to 1% by mass. Is more preferable.

Examples of the optional pH adjuster include hydrochloric acid, sulfuric acid, phosphoric acid, glycolic acid, citric acid, sodium hydroxide, potassium hydroxide, monoethanolamine, diethanolamine, and triethanolamine.
A pH adjuster may be used individually by 1 type, and 2 or more types may be used in combination.

The 25 degreeC pH of a liquid detergent is not specifically limited, For example, 3-6 are preferable and 4-5.5 are more preferable.
The pH of the liquid detergent adjusted to 25 ° C. is a value measured by a method based on JIS K3362-1998 using a pH meter.

Although the viscosity of a liquid detergent is not specifically limited, For example, 100 mPa * s or more is preferable, 500 mPa * s or more is more preferable, 1000 mPa * s or more is further more preferable. When the viscosity is equal to or higher than the lower limit, the user can easily recall the high detergency according to the high viscosity.
The upper limit of the viscosity of the liquid detergent is, for example, preferably 5000 mPa · s, more preferably 3000 mPs · s, and even more preferably 20000 mPa · s. When the viscosity is not more than the above upper limit, the fluidity of the liquid detergent is easily maintained, and the liquid detergent can be easily dropped from a container containing the liquid detergent.
The viscosity of the liquid detergent is, for example, a value measured under the following measurement conditions using a viscosity measuring device manufactured by Shibaura Semtec.
≪Measurement conditions≫
Rotor: No. 3 rotor (when less than 4000 mPa · s) or No. 4 rotor (when 4000 mPa · s or more).
-Number of rotations: 30 rpm.
Measurement temperature: 25 ° C.
-Viscosity reading: 30 seconds after the start of rotation of the rotor.

  The content of water with respect to the total mass of the liquid detergent is not particularly limited as long as each component can be dissolved or uniformly dispersed, and is preferably 10 to 90% by mass, more preferably 50 to 80% by mass, 60-80 mass% is more preferable. When the content of water in the total amount of the liquid detergent is equal to or higher than the lower limit, each component is easily dissolved. When the content of water in the total amount of the liquid cleaning agent is not more than the above upper limit value, the viscosity of the liquid cleaning agent tends to increase and it is easy to recall a high cleaning power.

  The liquid detergent of the present invention can be produced by a conventional method. For example, it can manufacture by mixing (A)-(D) component and arbitrary components as needed, and stirring.

The method for washing tableware using the liquid detergent of the present invention may be either a dipping method or a non-dipping method.
In the case of the dipping method (placed washing method), dilute the liquid detergent (100 to 10,000 times dilution) so that the concentration of the liquid detergent in 100% by mass of the diluent is 0.01 to 1% by mass. Is preferred.
As a specific method of the non-immersion method, for example, there is a method of scrubbing dishes by adding an appropriate amount of a 100-fold diluted liquid cleaning agent to the sponge.
In any cleaning method, it is preferable to rinse with water containing no liquid cleaning agent. After rinsing with clean water, when the washed surface before drying is rubbed with a finger, it is preferable that there is less sense of stickiness.

  As described above, since the liquid cleaning agent of the present invention contains the components (A) to (D), it exhibits excellent cleaning power in any of the above cleaning methods. In addition, since the liquid cleaning agent of the present invention contains the component (D), it is possible to reduce the feeling of nulliness after rinsing with the components (A) to (C).

  EXAMPLES Hereinafter, although an Example is shown and this invention is demonstrated in detail, this invention is not limited by the following description.

(Raw materials used)
<(A) component>
[Α-SF salt represented by formula (A1)]
A-1: MIZULAN FL-80 (trade name, manufactured by Lion Eco Chemicals). In formula (A1), R ¹¹ is a linear alkyl group having 14 carbon atoms, R ¹² is a methyl group, α is an SF salt (C16MES) in which M is Na, and R ¹¹ is a linear alkyl group having 16 carbon atoms, a mixture of R ¹² is a methyl group, M is Na alpha-SF salt (C18MES) (C16-C18MES) . In A-1, C16MES: C18MES (mass ratio) = 80: 20.
[Α-SF salt represented by formula (A2)]
A-2: An α-SF salt (C12MES) in which R ¹¹ is a linear alkyl group having 10 carbon atoms, R ¹² is a methyl group, and M is Na in formula (A1). Prepared by the following synthesis method.
<< Synthesis Example 1 >> Preparation of A-2 1 kg (4.7 mol) of lauric acid methyl ester ("Pastel M-12" manufactured by Lion Corporation) was placed in a reactor having a capacity of 3L. Anhydrous sulfuric acid (“Nisso Sulfan” manufactured by Nisso Metal Chemical Co., Ltd.) 449 g (5.6 mol) was heated and gasified, and the gasified anhydrous sulfuric acid was poured into the reactor by a nitrogen flow in an open system. Lauric acid methyl ester was sulfonated. The reaction temperature was 80 ° C., and the sulfuric acid anhydride feed rate was 10 g / min. Thereafter, an aging reaction was performed at 80 ° C. for 30 minutes to obtain α-sulfo fatty acid methyl ester (sulfonic acid). The obtained sulfonic acid, methanol (Kanto Chemical Co., Ltd.) 20 wt% and (290 _g), 2 wt% of H 2 _{O 2} in purity (35 _wt% H 2 _{O 2} (Kanto Chemical Co., Inc. 83 g) was added. Then, esterification and bleaching were performed by reacting at 80 ° C. for 60 minutes to obtain a bleaching acid. The obtained bleaching acid was adjusted to pH 7.0 with an aqueous NaOH solution, and the reaction solvent was distilled off under reduced pressure. Isopropanol was added and water was distilled off azeotropically. The residue was dissolved by heating at 60 ° C. with ethanol / water = 9/1 (volume ratio) to remove insoluble matters. The filtrate was cooled to 5 ° C. and recrystallized, and then the precipitate was separated by filtration and vacuum dried to obtain α-sulfolauric acid methyl ester sodium salt (A-2).

<(B) component>
B-1: Sinoline SPE-1250 (trade name, manufactured by Shin Nippon Chemical Co., Ltd. AES (sodium polyoxyethylene alkyl ether sulfate; average number of ethyleneoxy group repeats 2)).
B-2: Sannor LM-1130 (manufactured by Lion Corporation. SLS (sodium dodecyl sulfate)).
B-3: Lipon LS-250 (trade name, manufactured by Lion Corporation, LAS (sodium linear alkylbenzene sulfonate)).

<(C) component>
C-1: NIKKOL AM-313ON (trade name, manufactured by Nikko Chemicals Co., Ltd. CAPB (coconut oil fatty acid amidopropyl betaine).

<(D) component>
D-1: Palm (carbon number 8 to 14) alkyl poly (degree of polymerization 1.5) glycoside (trade name: Gulcopon 650EC, manufactured by BASF).
D-2: Polyoxyethylene (average 10 mol) mono (2-propylheptyl) ether (trade name: Lutensol XP100, manufactured by BASF).
D-3: Palm fatty acid diethanolamide (trade name: Amizole CDE, manufactured by Kawaken Fine Chemical Co., Ltd.).

<Optional component>
Hydrotrope: Ethanol (manufactured by Kanto Chemical Co., Inc.).
pH adjuster: sodium hydroxide (manufactured by Kanto Chemical Co., Inc.) or sulfuric acid (manufactured by Kanto Chemical Co., Ltd.).

(Evaluation method)
<Detergency evaluation>
0.5 g of commercially available olive oil (manufactured by Ajinomoto Co., Inc.) was evenly applied to a polypropylene dish having a diameter of 25 cm to obtain a dirt model. 1 L of 25 ° C. tap water is added to a 1 L beaker, and 10 g of the composition of each example is dropped into the center of the beaker. A stir bar was placed in the beaker and stirred at a speed of 300 rpm to completely dissolve the composition. After 40 g of the obtained diluted solution was dropped on a sponge (trade name: Scotch Bright, manufactured by Sumitomo 3M) with a dropper, the sponge was bubbled 5 times on the plate and rubbed 10 times. Rinse with tap water. After the rinsed dishes were air-dried for 1 hour, the degree of dirt removal was evaluated according to the following evaluation criteria (4-stage evaluation). When the evaluation is “◯” or “◎”, it can be determined that coloring is satisfactorily suppressed.
≪Evaluation criteria≫
(Double-circle): The dirty residue of olive oil is not confirmed visually, and is not sticky when a dish is rubbed with a finger.
○: The remaining olive oil stain cannot be visually confirmed, but is slightly sticky when the dish is rubbed with a finger.
Δ: The olive oil stains are slightly confirmed visually, and slightly sticky when the dish is rubbed with fingers (more sticky than the above ○).
X: The remaining residue of the olive oil was confirmed by visual observation, and when the dish was rubbed with a finger, it was very sticky (more sticky than the above Δ).

<Nullness evaluation>
Using a foamed sponge in the same manner as described above, five polypropylene dishes not contaminated with olive oil or the like were continuously washed. After washing, the washing surface of the dish was rubbed with a finger while immersed in clean water, and the nullability of the tableware felt with the fingertip was evaluated according to the following evaluation criteria. Based on the average value of the scores of five experts, the evaluation was made in four stages of ◎ to ×.
(Evaluation criteria for individual experts)
6 points: I don't feel null at all.
5 points: almost no null feeling.
4 points: I don't feel null.
3 points: I feel a little null.
2 points: I feel quite null.
1 point: I feel very null.
(Average evaluation criteria)
◎: Average score of 5 experts is 5 or more ○: Average score of 5 experts is 4 or more and less than 5 △: Average score of 5 experts is 3 or more and less than 4 ×: Average score of 5 experts is less than 3 points

(Examples 1 to 23, Comparative Examples 1 to 6)
According to the composition of Tables 1-3, (A) component and 300 g of distilled water were put into a 1 L-sized beaker and sufficiently stirred with a three-one motor (product name: FBL600, manufactured by Shinto Kagaku Co., Ltd.). Next, the component (B), the component (C), the component (D), and the optional component were added and sufficiently stirred. After adding an appropriate amount of a pH adjuster as necessary so that the pH at 25 ° C. is 6 to 8, distilled water is added so that the total amount becomes 100% by mass, and the mixture is stirred for the tableware of each example. A liquid detergent was obtained.
In the above pH measurement, a glass electrode type pH meter (product name: HM-30G, manufactured by Toa DKK Corporation) was used, the temperature of the mixed solution was adjusted to 25 ° C., and the glass electrode of the pH meter was immersed in the composition. The pH indicated after 1 minute was measured.
In addition, the compounding quantity in a table | surface is a pure part conversion value. Moreover, the component whose compounding quantity is not described in the table | surface is not mix | blended.
About the liquid cleaning agent of each case, the detergency and nullability were evaluated. The results are shown in the table.

As shown in Tables 1-2, Examples 1-23 which contain C16-18 MES 50 mass% or more in (A) component are "(circle)" or "(double-circle)", and nullability. The evaluation was “◯” or “◎”.
As shown in Table 3, the comparative example 1 which does not include the component (A) has a cleaning property and nullability evaluation of “Δ”, and the comparative example 2 which does not include the component (B) has a cleaning property evaluation of “x”. In Comparative Example 3 containing no component (C), the detergency evaluation was “Δ”, and in Comparative Example 4 containing no component (D), the nullability evaluation was “Δ”. Moreover, the comparative example 5 which does not contain C16-18MES in (A) component is "(triangle | delta)", and the comparative example 6 which contains only C16-18 MES less than 50 mass% in (A) component is detergency. Was “△”.
From the above results, it was confirmed that the liquid detergent for tableware of the present invention was excellent in cleanability, was easily washed away from the cleaning surface by rinsing after cleaning, and the feeling of nullness on the cleaning surface was reduced.

Claims (6)

(A) component: α-sulfo fatty acid alkyl ester salt containing α-sulfo fatty acid alkyl ester salt represented by the following general formula (A1) and represented by the following general formula (A2);
(B) component: an anionic surfactant other than the component (A),
(C) component: betaine type amphoteric surfactant,
(D) component: a nonionic surfactant;
Containing
The content of the α-sulfo fatty acid alkyl ester salt represented by the following general formula (A2) in the component (A) is 50% by mass or more,
{The (A) component + the (B) component)} / The liquid detergent for tableware whose mass ratio represented by the (D) component is 1-20.
_{^{R 11 -CH (SO 3 M)}} -COOR 12 ··· (A1)
[In Formula (A1), R ¹¹ is a hydrocarbon group having 6 to 22 carbon atoms, R ¹² is an alkyl group having 1 to 3 carbon atoms, and M is a counter ion. ]
R ¹³ —CH (SO ₃ M) —COOR ¹⁴ (A2)
[In Formula (A2), R ¹³ is a hydrocarbon group having 14 to 16 carbon atoms, R ¹⁴ is an alkyl group having 1 to 3 carbon atoms, and M is a counter ion. ]   The component (B) is a linear alkyl benzene sulfonate having a linear alkyl group having 10 to 14 carbon atoms, an alkyl group having 12 to 14 carbon atoms, and an average of alkylene oxy groups having 1 to 4 carbon atoms. 2. The composition according to claim 1, comprising at least one selected from the group consisting of polyoxyalkylene alkyl ether sulfates having a repeating number of 1 to 3 and alkyl sulfate esters having an alkyl group having 10 to 20 carbon atoms. Liquid detergent for tableware.   The liquid detergent for tableware according to claim 1 or 2 whose mass ratio denoted by said (A) ingredient / said (C) ingredient is 0.5-8.0.   The component (D) is an alkyl polyglucoside having an alkyl group having 10 to 16 carbon atoms and a degree of polymerization of 1.0 to 2.0; having an alkyl group having 10 to 12 carbon atoms and having 1 carbon atom A polyoxyalkylene alkyl ether having an average number of repeating alkyleneoxy groups of -4 of 7-20, and a fatty acid alkanolamide having an alkanoyl group of 10-18 carbons, comprising at least one selected from the group consisting of Item 5. A liquid detergent for tableware according to any one of Items 1 to 3.   The mass ratio represented by {the component (A) + the component (B)} / {the component (A) + the component (B) + the component (C) + the component (D)} is 0.70. The liquid detergent for tableware as described in any one of Claims 1-4 which is -0.90. The mass ratio represented by the component (D) / {the component (A) + the component (B) + the component (C) + the component (D)} is 0.10 to 0.24.
The liquid detergent for tableware as described in any one of Claims 1-5.