WO2017204148A1 - Method for washing hard surface - Google Patents

Abstract

The present invention is a method for washing tableware without applying thereto mechanical force, by causing a liquid detergent composition for tableware, which contains not less than 1 mass% of a surfactant (hereinafter, referred to as component (I)), not less than 1 mass% of a chelating agent (hereinafter, referred to as component (II)), and water, to be in contact with tableware having an oil stain including solid fat attached thereto, wherein the mass ratio of component (I) / component (II) is not lower than 0.25 and the liquid detergent composition has an electrical conductivity at 25°C of not less than 0.70 S/m.

Description

Hard surface cleaning method

The present invention relates to a hard surface cleaning method and a hard surface liquid cleaning composition. In particular, the present invention relates to a method for washing dishes and a liquid detergent composition for dishes.

BACKGROUND ART A dishwashing agent for hand washing has a strong demand for detergency against oil stains. In particular, in tableware having a hydrophobic surface such as a plastic tapper and lunch box, oil stains containing a large amount of solid fat such as beef tallow and pork fat are difficult to remove, and high detergency is required. For this reason, a cleaning method is generally used in which hot water of about 40 ° C. to 45 ° C. is used, or a measure such as washing twice is used.

Japanese Patent Application Laid-Open No. 2004-217908 includes the following (a) to (c), the total of the surfactants including (a) and (b) is 3 to 20% by mass, and the mass ratio (a) A spray-type cleaning product for dishwashing, wherein the liquid cleaning composition in which (b) is 2: 1 to 20: 1 is converted into droplets or foams and filled into a container to be discharged, It is described that excellent cleaning power is exhibited by adhering dirt on the surface of an object to be cleaned so as to be covered with droplets or bubbles.
(A) Anionic surfactant (b) Semipolar surfactant (c) Ethanol 0.1-20% by mass
JP2013-82846A selects from (a) sulfosuccinic acid alkyl ester or salt thereof, (b) alkyl sulfate ester or salt thereof, and (c) hydroxycarboxylic acid, aminopolycarboxylic acid, and salts thereof. A dishwashing composition for hand-washing that contains 2 to 8% by weight of one or more compounds that exhibit excellent detergency against dirt around the sink. As shown, when rinsing, the foam disappears instantly and rinsing with a small amount of water is complete.

SUMMARY OF THE INVENTION The present invention relates to a hard surface liquid detergent composition having excellent detergency for oil stains containing solid fat adhering to a hard surface, and a hard surface cleaning method using the same. More specifically, the present invention relates to a liquid detergent composition for tableware having excellent detergency for oil stains containing solid fat adhered to tableware, and a method for cleaning dishes using the same.

The present invention comprises (I) a surfactant (hereinafter referred to as component (I)) of 1% by mass or more, (II) a chelating agent (hereinafter referred to as component (II)) of 1% by mass or more, and water. I) Component (a) contains an anionic surfactant, (II) component / (I) component mass ratio is 0.25 or more, and electrical conductivity at 25 ° C. is 0.70 S / m or more. The present invention relates to a method for cleaning a hard surface, wherein the hard surface liquid cleaning composition is brought into contact with a hard surface to which oily soil containing solid fat is adhered, and cleaning is performed without applying mechanical force.

The cleaning method of the present invention comprises (I) a surfactant (hereinafter referred to as component (I)) of 1% by mass or more, (II) a chelating agent (hereinafter referred to as component (II)) of 1% by mass or more, and water. And (a) an anionic surfactant as component (I), the mass ratio of component (II) / component (I) is 0.25 or more, and the electrical conductivity at 25 ° C. is 0.70 S / m. There is a tableware cleaning method in which the liquid detergent composition for tableware as described above is brought into contact with tableware to which oily soil containing solid fat is adhered, and cleaning is performed without applying mechanical force.

Further, the present invention comprises (I) a surfactant (hereinafter referred to as component (I)) 1% by mass or more, (II) a chelating agent (hereinafter referred to as component (II)) 1% by mass or more, and water. The component (I) contains (a) an anionic surfactant, the mass ratio of (II) component / (I) component is 0.25 or more, and the electrical conductivity at 25 ° C. is 0.70 S / m or more. It is related with the liquid cleaning composition for hard surfaces.

As a liquid detergent composition for hard surfaces of the present invention, (I) surfactant (hereinafter referred to as component (I)) 1% by mass or more, (II) chelating agent (hereinafter referred to as component (II)) 1% by mass As mentioned above, it contains water, contains (a) an anionic surfactant (hereinafter referred to as (a) component) as component (I), and has a mass ratio of (II) component / (I) component of 0.25 or more. And a liquid detergent composition for tableware having an electric conductivity at 25 ° C. of 0.70 S / m or more.

According to the present invention, an oil stain containing solid fat adhered to an article having a hard surface such as plastic, particularly tableware, is not rubbed using a flexible material such as a sponge, that is, without applying mechanical force. It is possible to provide a hard surface cleaning method and a hard surface liquid detergent composition that can be cleaned and have excellent cleaning power.
BEST MODE FOR CARRYING OUT THE INVENTION

[Cleaning method of hard surface]
The method for cleaning a hard surface of the present invention comprises 1% by mass or more of a surfactant [(I) component] containing an anionic surfactant, 1% by mass or more of a chelating agent [(II) component], and water ( II) A liquid detergent composition for hard surfaces having a mass ratio of component / (I) component of 0.25 or more and an electrical conductivity at 25 ° C. of 0.70 S / m or more, oil stain containing solid fat This is a method for cleaning a hard surface in which the surface is contacted with, for example, tableware and cleaned without applying mechanical force. In the following, this cleaning method includes a cleaning method in which the hard surface is replaced with tableware.
In the present invention, by defining the content and mass ratio of the surfactant and chelating agent including an anionic surfactant, and the electrical conductivity of the composition, the cleaning ability of the surfactant is improved and used in the present invention. The surfactant contained in the liquid detergent composition for hard surfaces can easily penetrate into oil stains containing solid fat, and the solid fat can be easily peeled off from the hard surface. Presumed to have been obtained.
In the cleaning method of the present invention, when the composition is used in a method of directly contacting the hard surface, the concentration of the surfactant applied to the hard surface is adjusted to the hard surface using a water-containing sponge. Since it becomes higher than the case of making it contact, the effect expresses more notably.
For these reasons, the cleaning method of the present invention does not rub oil dirt containing solid fat adhered to a hard surface such as plastic using a flexible material such as sponge, that is, does not apply mechanical force. An excellent detergency can be obtained also by the method.

Hereinafter, the liquid detergent composition for hard surfaces used in the cleaning method of the present invention will be described.
[Component (I)]
Component (I) is a surfactant. The liquid detergent composition for hard surfaces used in the present invention contains (a) an anionic surfactant as component (I).
The surfactant contains (a) an anionic surfactant from the viewpoint of detergency. Examples of the other surfactant include one or more surfactants selected from (b) amphoteric surfactants, (c) nonionic surfactants, and cationic surfactants.
As the surfactant, from the viewpoint of detergency, one or more selected from (a) an anionic surfactant, (b) an amphoteric surfactant and (c) a nonionic surfactant (hereinafter referred to as component (c)) A combination of (a) an anionic surfactant and (b) an amphoteric surfactant [hereinafter referred to as component (b)] is more preferred.

<(A) component>
The component (a) is an anionic surfactant. Examples of the anionic surfactant include (a1) a sulfosuccinic acid ester represented by the following general formula (a1) or a salt thereof (hereinafter referred to as (a1) component), and (a2) a hydrocarbon group having 8 to 21 carbon atoms. And one or more anionic surfactants selected from the group consisting of an anionic surfactant having a sulfate group or a sulfonic acid group [excluding the component (a1)] (hereinafter referred to as the component (a2)) is preferred. .

[In formula, R < ^1a >, R < ^2a > is respectively independently a C5-C18 hydrocarbon group. A ¹ and A ² are each independently an alkylene group having 2 or more and 4 or less carbon atoms, and x and y are average added mole numbers, and are each independently 0 or more and 6 or less. M ¹ is a hydrogen atom or a cation. ]

<(A1) component>
The component (a1) used in the present invention is a sulfosuccinic acid ester represented by the following general formula (a1) or a salt thereof.

[In formula, R < ^1a >, R < ^2a > is respectively independently a C5-C18 hydrocarbon group. A ¹ and A ² are each independently an alkylene group having 2 or more and 4 or less carbon atoms, and x and y are average added mole numbers, and are each independently 0 or more and 6 or less. M ¹ is a hydrogen atom or a cation. ]

In general formula (a1), R ^1a and R ^2a each independently represent 5 or more carbon atoms, preferably 6 or more, more preferably 7 or more, and 18 or less carbon atoms, preferably 16 or less, and more preferably 14 carbon atoms. The following hydrocarbon groups. The hydrocarbon group is preferably a branched chain hydrocarbon group. R ^1a and R ^2a are each independently preferably a linear or branched alkyl group, more preferably a branched alkyl group.
In the general formula (a1), A ¹ and A ² are each independently an alkylene group having 2 or more carbon atoms and 4 or less carbon atoms, preferably 3 or less carbon atoms.
In general formula (a1), x and y are average added mole numbers, and from the viewpoint of detergency, each is independently 0 or more and 6 or less, preferably 4 or less, more preferably 2 or less, More preferably, it is 0.
Further, x + y is preferably 0 or more and preferably 12 or less, more preferably 6 or less, still more preferably 3 or less, and still more preferably 0, from the viewpoint of detergency.

In general formula (a1), R ^1a and R ^2a are each preferably hexyl, octyl, nonyl, decyl, dodecyl, tridecyl, tetradecyl, 2-ethylhexyl, n-octyl, sec An alkyl group selected from an octyl group, an isopentyl group, an isononyl group, an isodecyl group, and a cyclohexyl group, more preferably an n-octyl group, a sec-octyl group, a decyl group, an isodecyl group, and a 2-ethylhexyl group An alkyl group, more preferably an alkyl group selected from a 2-ethylhexyl group and a tridecyl group, and still more preferably a 2-ethylhexyl group.

In general formula (a1), M ¹ is a hydrogen atom or a cation. Examples of the cation include inorganic cations such as sodium ion, ammonium ion, potassium ion and magnesium ion, and organic cations such as monoethanolammonium ion, diethanolammonium ion, triethanolammonium ion and morpholinium ion. The cation is preferably an inorganic cation selected from sodium ion, ammonium ion, potassium ion and magnesium ion.

The component (a1) is not particularly limited as a method for preparing a compound in which R ^1a and R ^2a are the same. For example, the method described in US Pat. No. 2,028,091 is referred to. An asymmetric compound in which R ^1a and R ^2a are different can be produced with reference to, for example, Japanese Patent Application Laid-Open No. 58-24555. When commercially available compounds are used, PALEX OT-P (a compound in which R ^1a and R ^2a are both 2-ethylhexyl groups) manufactured by Kao Corporation, and PELEX TR (R ^1a and R ^2a are both tridecyl groups) Compound), LusitA-BO manufactured by BASF (a compound in which R ^1a and R ^2a are both 2-ethylhexyl groups), Airroll CT-1L manufactured by Toho Chemical Industry Co., Ltd. (both R ^1a and R ^2a are 2-ethylhexyl groups) A compound), aerosol AY-100 (a compound in which R ^1a and R ^2a are both amyl groups) and aerosol A-196 (in which R ^1a and R ^2a are both cyclohexyl groups), which were available from Mitsui Cytec Co., Ltd. Compound) and the like. As a raw material for the component (a1), a product obtained by adding an alkylene oxide to an alcohol having a predetermined carbon number can also be used.

<(A2) component>
The component (a2) used in the present invention is an anionic surfactant (except for the component (a1)) having a hydrocarbon group having 8 to 21 carbon atoms and a sulfate ester group or a sulfonic acid group.

The hydrocarbon group (a2) has a carbon number of 8 or more, preferably 10 or more, more preferably 12 or more, and 21 or less, preferably 18 or less, more preferably 14 or less, from the viewpoint of detergency. Preferably it is 12 or less. The hydrocarbon group as the component (a2) is preferably an alkyl group or an aryl group.

As the anionic surfactant as the component (a2), one or more selected from alkyl sulfates, polyoxyalkylene alkyl ether sulfates and alkane sulfonates are preferable.

From the viewpoint of detergency, the anionic surfactant having a sulfate ester group has 8 or more carbon atoms, preferably 10 or more, and 21 or less, preferably 18 or less, more preferably 14 or less, still more preferably 12 or less. Alkyl sulfate ester salts having a linear or branched alkyl group are preferred.
The anionic surfactant having a sulfate ester group and a polyoxyalkylene group has a carbon number of 8 or more, preferably 10 or more, and 21 or less, preferably 18 or less, more preferably from the viewpoint of detergency. The average added mole number of an oxyalkylene group having a linear or branched alkyl group of 14 or less, more preferably 12 or less, and having 2 or more and 3 or less carbon atoms is preferably 0.1 or more, more preferably 0.3. More preferably, a polyoxyalkylene alkyl ether sulfate ester salt having a polyoxyalkylene group that is 0.4 or more, and preferably 6 or less, more preferably 3 or less, and even more preferably 1.5 or less is suitable. .
In addition, as the anionic surfactant having a sulfonic acid group, from the viewpoint of detergency, (1) an alkylbenzene sulfonate having an alkyl group having 6 to 15 carbon atoms and (2) 8 or more carbon atoms, preferably One or more anionic surfactants selected from 10 or more and 21 or less, preferably 18 or less, more preferably 14 or less, and even more preferably 12 or less alkane sulfonate are suitable.

The salt of the anionic surfactant (a2) is selected from inorganic salts such as sodium salt, ammonium salt, potassium salt and magnesium salt, monoethanolammonium salt, diethanolammonium salt, triethanolammonium salt and morpholinium salt. Organic ammonium salts are preferred.

As the component (a2), a compound represented by the following general formula (a2) is preferable from the viewpoint of blending stability and foamability.
R ^11a —O— (R ^12a O) _n —SO ₃ M ² (a2)
[Wherein, R ^11a is a linear or branched alkyl group having 8 to 21 carbon atoms, R ^12a is an ethylene group and / or a propylene group, n is an average added mole number, and is 0 or more. The number is 6 or less. M ² is a hydrogen atom or a cation, preferably an inorganic or organic cation. ]

In the general formula (a2), R ^11a has a carbon number of 8 or more, preferably 10 or more, and 21 or less, preferably 18 or less, more preferably 14 or less, and still more preferably 12 or less, from the viewpoint of detergency. A chain or branched alkyl group, preferably a linear alkyl group. Specifically, R ^11a is preferably an alkyl group selected from an octyl group, a decyl group, a dodecyl group, a tridecyl group, and a tetradecyl group, and more preferably a dodecyl group.

In general formula (a2), n is preferably 0.1 or more, more preferably 0.3 or more, still more preferably 0.4 or more, and preferably 6 or less, more preferably 3 from the viewpoint of detergency. Hereinafter, the number is more preferably 1.5 or less.
In the general formula (a2), when R ^12a is an ethylene group, n is preferably 0.1 or more, more preferably 0.5 or more, and preferably 6 or less, more preferably from the viewpoint of detergency. Is a number of 3 or less.
In the general formula (a2), when R ^12a is a propylene group, from the viewpoint of detergency, n is preferably 0.1 or more, more preferably 0.2 or more, and still more preferably 0.4 or more. The number is preferably 1.5 or less, more preferably 1.0 or less, and still more preferably 0.8 or less.
In the general formula (a2), when R ^12a is an ethylene group or a propylene group, n can be selected from these ranges.

In general formula (a2), M ² is a hydrogen atom, or an inorganic cation such as sodium ion, ammonium ion, potassium ion, magnesium ion, monoethanolammonium ion, diethanolammonium ion, triethanolammonium ion, morpholinium ion. Organic cations such as sodium ion, potassium ion, ammonium ion, and magnesium ion are preferable.

The method for preparing the compound of the general formula (a2) is not particularly limited. For example, after a predetermined amount of ethylene oxide and / or propylene oxide is added to the fatty alcohol represented by R ^11a —OH depending on the purpose. It is produced by sulfate formation with a sulfating agent selected from sulfur trioxide (liquid or gas), sulfur trioxide-containing gas, fuming sulfuric acid and chlorosulfonic acid, and neutralization with a predetermined alkali agent. The addition reaction of ethylene oxide (hereinafter referred to as EO) and / or propylene oxide (hereinafter referred to as PO) requires a catalyst, and an alkali hydroxide such as NaOH or KOH can be used. Further, a catalyst mainly composed of magnesium oxide described in JP-A-8-323200 can be used, and the former can obtain a polyoxyethylene alkyl ether having a relatively wide addition mole number distribution, and the latter is compared. A compound having a narrow addition mole number distribution can be obtained. Further, as disclosed in JP-A-10-158384, the addition mole number distribution can be controlled by using an alkali catalyst and a metal oxide catalyst in combination.

In formula ^{(a2), when R 11a} to obtain a compound containing a branched alkyl group as the alcohol represented by the raw material ^R 11a -OH, hydroformylating the number 8 to 14 of the 1-alkene carbon After condensing the alcohol obtained (contained from 15 mol% to 70 mol% of an alkyl group having a methyl group branched at the β-position with respect to the OH group) and an aldehyde having 4 to 8 carbon atoms, it is reduced. 3 obtained by hydroformylating a dimer of isobutene, which is obtained by the gel-type alcohol obtained (containing 100 mol% of a structure in which an alkyl group having 3 to 6 carbon atoms is branched at the β-position relative to the OH group). , 5,5-trimethylhexanol, a polybranched tridecanol obtained by hydroformylating a trimer of isobutene (branching rate is 100 mol%), petroleum, Examples thereof include synthetic alcohols having coal as a raw material (an alkyl group having a branching ratio of about 20 mol% to 100 mol%).

In the present invention, the component (a2) is a compound represented by the general formula (a2), and R ^11a is preferably 8 or more carbon atoms, more preferably 10 or more, and preferably 18 or less, more preferably Includes a linear alkyl group of 14 or less, more preferably 12 or less, a propylene group as R ^12a , and n is preferably 0.1 or more, more preferably 0.2 or more, still more preferably 0.4 or more, A compound having a number of preferably 1.5 or less, more preferably 1.0 or less, and even more preferably 0.8 or less is preferable.

Other examples of the anionic surfactant include fatty acids having 10 to 14 carbon atoms or salts thereof.

<(B) component>
It is preferable that the liquid detergent composition for hard surfaces used in the present invention contains the amphoteric surfactant of the component (b) as the component (I). Examples of the amphoteric surfactant include one or more amphoteric surfactants selected from amine oxide, sulfobetaine, and carbobetaine. The amphoteric surfactant is preferably sulfobetaine.

As the amine oxide, a compound represented by the following general formula (b1) is suitable.

[Wherein, R ^1b represents a hydrocarbon group having 8 to 22 carbon atoms, preferably an alkyl group or an alkenyl group, more preferably an alkyl group, and R ^2b and R ^3b may be the same or different and have 1 or more carbon atoms. 3 or less alkyl groups are shown. D represents an —NHC (═O) — group or a —C (═O) NH— group, and E represents an alkylene group having 1 to 5 carbon atoms. m and p represent m = 0 and p = 0 or m = 1 and p = 1. ]

In the general formula (b1), R ^1b is preferably an alkyl group having 10 to 18 carbon atoms, more preferably an alkyl group having 12 to 16 carbon atoms, from the viewpoint of detergency against solid fat. More preferred is an alkyl group having 12 to 14 carbon atoms, and even more preferred is an alkyl group having 12 carbon atoms. R ^2b and R ^3b are preferably a methyl group having 1 carbon atom from the viewpoint of detergency against solid fat.

The sulfobetaine is an N-alkyl-N, N-dimethyl-N-sulfopropylammonium sulfobetaine having an alkyl group with a carbon number of preferably 10 or more, preferably 18 or less, more preferably 14 or less, or a carbon number of an alkyl group. Is preferably 10 or more, preferably 18 or less, more preferably 14 or less N-alkyl-N, N-dimethyl-N- (2-hydroxysulfopropyl) ammonium sulfobetaine, the number of carbon atoms of the alkanoyl group is preferably 10 or more N-alkanoylaminopropyl-N, N-dimethyl-N-sulfopropylammonium sulfobetaine, preferably 18 or less, more preferably 14 or less, the alkanoyl group preferably has 10 or more carbon atoms, preferably 18 or less, more preferably Is 14 or less N-alkanoylaminopro Le -N, N-dimethyl-N-(2-hydroxy-sulfopropyl) ammonium sulfobetaine and the like.

As carbobetaine, N-alkyl-N, N-dimethyl-N-carboxymethylammonium betaine having an alkyl group of preferably 10 or more, preferably 18 or less, more preferably 14 or less, or the following general formula (b2) A compound represented by the following general formula (b2) is preferable from the viewpoint of detergency.

[Wherein, R ^4b represents an alkyl group or alkenyl group having 7 to 21 carbon atoms, R ^5b represents a propylene group, and R ^6b and R ^7b each independently represents an alkyl group having 1 to 3 carbon atoms. Indicates. ]

In the general formula (b2), R ^4b is preferably an alkyl group or an alkenyl group of 9 or more, more preferably 11 or more, and preferably 15 or less, more preferably 13 or less. Nonyl group, decyl group, undecyl group Group, dodecyl group and tridecyl group are preferred.
In general formula (b2), R ^6b and R ^7b are each independently preferably a methyl group.

<(C) Nonionic surfactant>
The liquid detergent composition for hard surface used for this invention can contain the nonionic surfactant of (c) component as (I) component.
As a nonionic surfactant, (c1) glyceryl ether having an alkyl group having 6 to 18 carbon atoms (hereinafter referred to as (c1) component) and (c2) a compound represented by the following general formula (c2) [hereinafter, One or more nonionic surfactants selected from (referred to as component (c2)]. As the component (c), the component (c1) and the component (c2) may be used in combination, or only one of them may be used. The component (c) is preferably the component (c1) from the viewpoint of rinsing properties.
R ^2c O— (EO) _z —H (c2)
[Wherein R ^2c is a linear and / or branched alkyl group having 6 to 18 carbon atoms, EO is an ethyleneoxy group, z represents the average number of moles of EO added, and more than 0 The following numbers. ]

As the component (c1), a compound represented by the following general formula (c1) is preferable.
R ^1c —O— (Gly) _r —H (c1)
[Wherein, R ^1c represents an alkyl group having 6 to 18 carbon atoms, Gly represents a structural unit derived from glycerin, and preferably represents a residue obtained by removing one hydroxyl group and one hydrogen atom from glycerin; r represents a number from 1 to 4. ]

In the general formula (c1), R ^1c is preferably 6 or more carbon atoms, more preferably 7 or more carbon atoms, still more preferably 8 or more carbon atoms, and preferably 18 or less carbon atoms, more preferably 12 or less carbon atoms, More preferably, it is an alkyl group having 10 or less carbon atoms. ^Examples of R ^1c include a linear alkyl group and a branched alkyl group. Examples of the linear alkyl group include linear alkyl groups such as a hexyl group, a heptyl group, an octyl group, a nonyl group, and a decyl group. In the present invention, a branched alkyl group is preferred from the viewpoint of detergency. The branched alkyl group is preferably a group selected from 2-ethylhexyl group, sec-octyl group, isononyl group and isodecyl group, more preferably 2-ethylhexyl group or isodecyl group, and further preferably 2-ethylhexyl group.
In the general formula (c1), r is preferably 1 or more, and preferably 2 or less, and a compound in which r is 1 is more preferable. Further preferred compounds are those in which R ^1c is a 2-ethylhexyl group and r is 1.
In the general formula (c1), the structure represented by Gly is a structure represented by —CH ₂ CH (OH) CH ₂ — in which the hydroxyl groups at the 1-position and the 3-position of glycerin are bonded, or the 1-position of glycerin. It is a structure represented by —CH (CH ₂ OH) CH ₂ — in which the hydroxyl group at the 2-position is bonded, and varies depending on the catalyst and reaction conditions.

In order to obtain the compound of the general formula (c1), for example, an alkyl alcohol represented by R ^1c —OH is used as an alcohol having 6 to 10 carbon atoms, and an epoxy compound such as epihalohydrin or glycidol is reacted with an acid catalyst such as BF ₃ , Or the method of manufacturing by making it react using an aluminum catalyst can be used.
For example, when 2-ethylhexanol is used, the obtained 2-ethylhexyl monoglyceryl ether is a mixture that can contain a plurality of products as described in JP-A-2001-49291.

The component (c2) is a compound represented by the following general formula (c2).
R ^2c O— (EO) _z —H (c2)
[Wherein R ^2c represents a branched alkyl group having 6 to 18 carbon atoms, EO represents an ethyleneoxy group, z represents an average number of added moles of EO, and is a number of more than 0 and 100 or less. . ]

The carbon number of R ^{2c in} the general formula (c2) is 6 or more, preferably 8 or more, more preferably 10 or more, still more preferably 12 or more, and 18 or less, preferably 14 from the viewpoint of detergency. It is as follows.
R ^2c in general formula (c2) is preferably a secondary alkyl group from the viewpoint of detergency. Here, the secondary alkyl group is a residue obtained by removing a hydroxyl group from a secondary alcohol, and the carbon atom of R ^2c bonded to O in R ^2c O in the general formula (c2) is a secondary carbon. It is an atom. In the present invention, the secondary alkyl group is included in the branched alkyl group.

In the general formula (c2), the average added mole number z of EO is more than 0, preferably 1 or more, more preferably 3 or more, still more preferably 5 or more, and 110 or less from the viewpoint of detergency. The number is preferably 50 or less, more preferably 30 or less, still more preferably 20 or less, still more preferably 12 or less, and still more preferably 10 or less.
In addition, the compound of general formula (c2) may be further added with propylene oxide as long as the effects of the present invention are not impaired.

Examples of other nonionic surfactants include alkyl polyglycosides (glycoside type nonionic surfactants).

<Content of component (I)>
In the liquid detergent composition for hard surface used in the present invention, the component (I) is 1% by mass or more, preferably 2% by mass or more, more preferably 3% by mass or more, and further preferably 4 from the viewpoint of detergency. From the viewpoint of reducing the raw material cost and dischargeability, it is preferably 18% by mass or less, more preferably 15% by mass or less, still more preferably 12% by mass or less, still more preferably 10% by mass or less, and still more preferably. Is 8 mass% or less, more preferably 6 mass% or less.

In the liquid detergent composition for hard surface used in the present invention, the component (a) is preferably 0.25% by mass or more, more preferably 0.5% by mass or more, and further preferably 1% by mass from the viewpoint of detergency. % Or more, more preferably 2% by mass or more, more preferably 4% by mass or more, and from the viewpoint of reducing raw material costs and ejection properties, it is preferably 10% by mass or less, more preferably 8% by mass or less, and still more preferably. 6 mass% or less, More preferably, it contains 5 mass% or less.

In the component (I), the proportion of the component (a) is preferably 10% by mass or more, more preferably 20% by mass or more, still more preferably 30% by mass or more, and further preferably 40% by mass or more, from the viewpoint of detergency. From the viewpoint of improving detergency in combination with amphoteric surfactants and nonionic surfactants, it is preferably 90% by mass or less, more preferably 80% by mass or less, still more preferably 70% by mass or less, and still more preferably. Is 60% by mass or less.

In the liquid detergent composition for hard surface used in the present invention, the component (a1) is preferably 0.25% by mass or more, more preferably 0.5% by mass or more, and still more preferably 0.8% by mass from the viewpoint of detergency. 8% by mass or more, more preferably 1% by mass or more, still more preferably 1.7% by mass or more, and preferably 30% by mass or less, more preferably 20% by mass from the viewpoints of reducing raw material costs and discharging properties. % Or less, more preferably 15% by mass or less, still more preferably 10% by mass or less, still more preferably 8% by mass or less, and still more preferably 5% by mass or less.

In the present invention, the description (mass% and mass ratio) relating to the mass of component (a1) is based on the mass (ratio in terms of sodium salt) when M ¹ is assumed to be sodium.

Further, in the liquid detergent composition for hard surface used in the present invention, the component (a2) is 0% by mass or more and 3% by mass or less, preferably 2.5% by mass or less, from the viewpoint of detergency. Preferably it is 2 mass% or less, More preferably, it is 1.5 mass% or less, More preferably, it is 1 mass% or less, More preferably, it is less than 1 mass%, More preferably, it is 0.5 mass% or less, More preferably, Less than 0.5 mass%, More preferably, it is 0.1 mass% or less, More preferably, it contains less than 0.1 mass%. The content of the component (a2) may be 0% by mass in the composition.

In addition, the liquid detergent composition for hard surface used in the present invention is preferably the component (a2) from the viewpoint of increasing the foam specific volume when the liquid detergent composition for hard surface is used in a foam form. May be contained in an amount of 0.1% by mass or more, more preferably 0.3% by mass or more. The upper limit in this case can be selected from the above range.

In the present invention, the description (mass% and mass ratio) relating to the mass related to the component (a2) is the mass (in terms of sodium salt) when M ² in the general formula (a2) of the component (a2) is assumed to be sodium. Ratio).

In the hard surface liquid detergent composition used in the present invention, the mass ratio of component (a2) / component (a1) is preferably 1 or less, more preferably 0.8 or less, from the viewpoint of detergency. Preferably it is 0.6 or less, more preferably 0.4 or less, more preferably 0.2 or less, more preferably 0.1 or less, more preferably less than 0.1, still more preferably 0.05 or less, and preferably Is 0 or more, and may be 0.

From the viewpoint of detergency, the hard surface liquid detergent composition used in the present invention preferably has a mass ratio of (a1) component / (I) component of 0.1 or more, more preferably 0.3 or more, and , Preferably 0.9 or less, more preferably 0.7 or less.

In the liquid detergent composition for hard surface used in the present invention, the mass ratio of component (a2) / component (I) is preferably 0 or more, and preferably 0.5 or less, more preferably from the viewpoint of detergency. Is 0.3 or less.

In the liquid detergent composition for hard surface used in the present invention, the component (b) is preferably 0.25% by mass or more, more preferably 0.5% by mass or more, and still more preferably 1% from the viewpoint of detergency. % Or more, and preferably 8% by mass or less, more preferably 6% by mass or less, and still more preferably 4% by mass or less.

The liquid detergent composition for hard surface used in the present invention is preferably 0.25% by mass or more, more preferably 0.5% by mass or more, and still more preferably 1% by mass or more from the viewpoint of detergency. And preferably 8% by mass or less, more preferably 6% by mass or less, and still more preferably 4% by mass or less.

When the liquid detergent composition for hard surfaces used in the present invention contains the component (a) and the component (b), the mass ratio of the component (a) / (b) is 0 from the viewpoint of detergency. Exceeding, preferably 0.1 or more, more preferably 0.2 or more, still more preferably 0.3 or more, still more preferably 0.5 or more, still more preferably 0.7 or more, and from the same viewpoint, Preferably it is 10 or less, More preferably, it is 8 or less, More preferably, it is 6 or less, More preferably, it is 4 or less, More preferably, it is 3 or less.

In the liquid detergent composition for hard surface used in the present invention, from the viewpoint of detergency, the mass ratio of component (b) / component (I) is preferably 0.1 or more, more preferably 0.3 or more, and , Preferably 0.9 or less, more preferably 0.7 or less.

From the viewpoint of detergency, the hard surface liquid detergent composition used in the present invention preferably has a mass ratio of (a1) component / (b) component of 0.1 or more, more preferably 0.3 or more, and , Preferably 10 or less, more preferably 3 or less.

When the liquid detergent composition for hard surfaces used in the present invention contains the component (c), the composition preferably contains the component (c) from the viewpoint of detergency, preferably 0.1% by mass or more. Is 0.3% by mass or more, more preferably 0.5% by mass or more, still more preferably 1% by mass or more, still more preferably 1.5% by mass or more, and from the viewpoint of reducing raw material costs, 30% by mass or less, more preferably 20% by mass or less, further preferably 15% by mass or less, still more preferably 10% by mass or less, still more preferably 8% by mass or less, still more preferably 5% by mass or less, and still more. Preferably it contains 3 mass% or less.

[(II) component]
The component (II) is a chelating agent.
As the chelating agent, one or more compounds selected from aminocarboxylic acids, hydroxycarboxylic acids, hydroxyxyphosphonic acids, and salts thereof are preferable.

Aminocarboxylic acids and salts thereof include ethylenediaminetetraacetic acid (EDTA), nitrilotriacetic acid (NTA), iminodiacetic acid, diethylenetriaminepentaacetic acid (DPTA), N-hydroxyethyl-ethylenediaminetriacetic acid (HEDTA), methylglycine diacetic acid 1 type (s) or 2 or more types chosen from (MGDA), aspartic acid diacetic acid (ASDA), glutamic acid diacetic acid (GLDA), and these salts are mentioned. The aminocarboxylic acid and its salt are preferably one or more selected from ethylenediaminetetraacetic acid and its salt, methylglycine diacetic acid and its salt, and L-glutamic acid diacetic acid and its salt.
As hydroxycarboxylic acid and its salt, the compound chosen from aliphatic hydroxycarboxylic acid and its salt is preferable. Examples of the hydroxycarboxylic acid and salts thereof include compounds selected from malic acid, citric acid and salts thereof.
Examples of hydroxyxyphosphonic acid and salts thereof include compounds selected from 1-hydroxyethylidene-1,1-diphosphonic acid (HEDP) and salts thereof.
Examples of the salt of the chelating agent include alkali metal salts, ammonium salts, and amine salts. Alkali metal salts are preferable, and sodium salts or potassium salts are more preferable.

The chelating agent is preferably a hydroxycarboxylic acid and a salt thereof, more preferably an aliphatic hydroxycarboxylic acid and a salt thereof, further preferably a citric acid and a salt thereof, and still more preferably a citrate.

In the liquid detergent composition for hard surface used in the present invention, the component (II) is 1% by mass or more, preferably 1.5% by mass or more, more preferably 1.8% by mass or more from the viewpoint of detergency. More preferably, it is 2% by mass or more, and from the viewpoint of cost reduction and detergency, it is preferably 18% by mass or less, more preferably 15% by mass or less, still more preferably 12% by mass or less, and further preferably 10% by mass or less. More preferably, it is 8 mass% or less, More preferably, it is 5 mass% or less. In the present invention, the mass of the component (II) is an acid equivalent amount.

In the liquid detergent composition for hard surface used in the present invention, the mass ratio of (II) component / (I) component is 0.25 or more, preferably 0.30 or more, more preferably from the viewpoint of detergency. 0.35 or more, more preferably 0.40 or more, more preferably 0.50 or more, more preferably 0.60 or more, and from the viewpoint of reducing raw material costs and detergency, preferably 5.0 or less, more Preferably it is 4.0 or less, More preferably, it is 3.0 or less, More preferably, it is 2.0 or less, More preferably, it is 1.5 or less, More preferably, it is 1.0 or less, More preferably, it is 0.90 or less, More preferably, 0.70 or less.
In particular, when the hard surface liquid detergent composition used in the present invention contains the component (a) and the component (b), the hard surface liquid detergent composition used in the present invention comprises the component (II) / From the viewpoint of detergency, the mass ratio of the component (I) is 0.25 or more, preferably 0.30 or more, more preferably 0.35 or more, further preferably 0.40 or more, more preferably 0.50 or more. More preferably, it is 0.60 or more, and from the viewpoint of reducing raw material costs and detergency, it is preferably 5.0 or less, more preferably 4.0 or less, still more preferably 3.0 or less, still more preferably 2. It is 0 or less, more preferably 1.5 or less, more preferably 1.0 or less, and further preferably 0.90 or less.

[Electric conductivity]
The liquid detergent composition for hard surface used in the present invention has an electric conductivity (or electric conductivity) (stock solution, 25 ° C., S / m) of 0.70 or more, preferably 0 from the viewpoint of detergency. 80 or more, more preferably 1.0 or more, still more preferably 1.2 or more, still more preferably 1.4 or more, still more preferably 1.6 or more, and from the same viewpoint, preferably 10 or less, more preferably Is not more than 9.0, more preferably not more than 8.0, still more preferably not more than 7.0, still more preferably not more than 6.0, and still more preferably not more than 5.5.
The electrical conductivity can be increased by adding salt or the like.
If the electrical conductivity is within the above range, the preparation procedure of the hard surface liquid detergent composition used in the present invention is not limited. For example, sodium citrate may be added directly to the raw material, or a neutralized salt may be present in the composition by separately adding acid and alkali, such as adding citric acid and NaOH separately. . Further, for example, the electrical conductivity may be further adjusted while adjusting the pH to be neutral by separately mixing trisodium methylglycine diacetate and HCl. From the viewpoint of the compoundability of the hard surface liquid detergent composition used in the present invention, the method (II) such as citric acid is preferably added as a salt.
The method for measuring electrical conductivity is as described in the examples.

[PH]
The liquid detergent composition for hard surface used in the present invention has a pH at 25 ° C. of preferably 4 or more, more preferably 5 or more, from the viewpoint of increasing the electrical conductivity of the composition and increasing the cleaning power. More preferably, it is 5.5 or more, and from the viewpoint of detergency, it is preferably 10 or less, preferably 9 or less, more preferably 8 or less, and even more preferably 7 or less.

[Other ingredients]
The liquid detergent composition for hard surface used for this invention can contain components other than (I) component and (II) component.

<(III) component>
The hard surface liquid detergent composition used in the present invention preferably contains a solvent as the component (III) from the viewpoint of blending stability. The solvent is preferably a water-soluble organic solvent having 2 or more carbon atoms, more preferably 3 or more carbon atoms, preferably 10 or less carbon atoms, more preferably 8 or less carbon atoms. Specific examples include ethanol, isopropyl alcohol, Ethylene glycol, propylene glycol, diethylene glycol, dipropylene glycol, glycerin, isoprene glycol, propylene glycol monomethyl ether, propylene glycol monoethyl ether, 3-methyl-3-methoxybutanol, phenoxyethanol, phenyl glycol, phenoxyisopropanol, butyl diglycol (diethylene glycol A water-soluble organic solvent selected from monobutyl ether), dibutylene diglycol, and benzyl alcohol is more preferable. Among these, one or more water-soluble organic solvents selected from butyl diglycol, ethanol, and propylene glycol are more preferable. Here, the water-soluble organic solvent refers to a solvent having an octanol / water partition coefficient (LogPow) of 3.5 or less.

In the liquid detergent composition for hard surface used in the present invention, the component (III) is preferably 0.5% by mass or more, more preferably 2% by mass or more, still more preferably from the viewpoint of detergency and blending stability. 4% by mass or more, and preferably 30% by mass or less, more preferably 20% by mass or less, and still more preferably 10% by mass or less.

When the hard surface liquid detergent composition used in the present invention contains the component (III), the component (III) which is the mass ratio of the content of the component (III) and the total content of the component (I) The mass ratio of the / (I) component is preferably 0.5 or more, more preferably 1 or more, still more preferably 1.2 or more, still more preferably 1.5 or more, from the viewpoint of blending stability and detergency. From the same viewpoint, it is preferably 5 or less, more preferably 4 or less, still more preferably 3 or less, and still more preferably 2.5 or less.

<(IV) component>
The liquid detergent composition for hard surfaces used in the present invention can contain a hydrotrope as the component (IV) from the viewpoint of blending stability. As the hydrotrope, toluenesulfonic acid, xylenesulfonic acid, cumenesulfonic acid or a sodium, potassium or magnesium salt thereof is preferable, and p-toluenesulfonic acid or a salt thereof is particularly preferable.

In the liquid detergent composition for hard surface used in the present invention, the component (IV) is preferably 0.5% by mass or more, more preferably 1% by mass or more, and still more preferably 1.5%, from the viewpoint of blending stability. It is contained in an amount of not less than mass%, preferably not more than 15 mass%, more preferably not more than 10 mass%, and still more preferably not more than 5 mass%.

In addition to these, the liquid detergent composition for hard surfaces used in the present invention comprises an antigelling agent such as polyalkylene glycol, a thickener such as polyacrylic acid, an enzyme, a fragrance, a dye, a pigment, a disinfectant, an antiseptic Components such as an agent and a pH adjusting agent can be contained.

In the hard surface liquid detergent composition used in the present invention, the solid content is 2% by mass or more, preferably 3% by mass or more, more preferably 4% by mass or more, and the raw material from the viewpoint of detergency. From the viewpoint of reducing costs and from the viewpoint of dischargeability when using a container having a sprayer, it is preferably 60% by mass or less, more preferably 50% by mass or less, still more preferably 45% by mass or less, and still more preferably. It is 40 mass% or less, More preferably, it is 35 mass% or less, More preferably, it is 30 mass% or less, More preferably, it is 25 mass% or less, More preferably, it is 20 mass% or less.
Here, the solid content is the components (I) to (IV) and other optional components, that is, components other than water.

The liquid detergent composition for hard surface used in the present invention contains water. That is, the balance other than the components (I) to (IV) and the optional component is water. The hard surface liquid detergent composition used in the present invention is preferably 30% by mass or more, more preferably 50% by mass or more, still more preferably 60% by mass or more, still more preferably 70% by mass or more, and water. , Preferably it is 99 mass% or less, More preferably, it is 95 mass% or less, More preferably, it contains 90 mass% or less. As the water, it is preferable to use ion exchange water, sterilized ion exchange water, or the like.

The viscosity at 20 ° C. of the hard surface liquid detergent composition used in the present invention is preferably 0.5 mPa · s or more, more preferably 1 mPa · s or more, and preferably 50 mPa · s or less, more preferably 20 mPa · s. s or less, more preferably 10 mPa · s or less, even more preferably 7 mPa · s or less, and even more preferably 5 mPa · s or less. The viscosity can be adjusted with a solvent or a hydrotrope.

<Washing method>
The method for cleaning a hard surface according to the present invention comprises the step of bringing the liquid detergent composition for a hard surface into contact with a hard surface to which oily soil containing solid fat is adhered, in particular, tableware, and cleaning without applying mechanical force. This is a cleaning method. This method is suitable for cleaning parts that are out of reach of hands and tools and details that are difficult to reach.
In the method for cleaning a hard surface of the present invention, it is preferable that the liquid detergent composition for hard surface is brought into contact with a hard surface to which oily soil containing solid fat is adhered without being diluted.
In the method for cleaning a hard surface according to the present invention, the liquid cleaning composition for hard surface may be brought into contact with a hard surface to which oily soil containing solid fat is adhered without being diluted, and cleaned without applying mechanical force. preferable.
In the cleaning method of the present invention, the liquid detergent composition for hard surface may be brought into contact with a hard surface to which oily soil containing solid fat is adhered without being diluted, and left to wash without applying mechanical force. preferable.
Cleaning hard surfaces without applying mechanical force is, for example, that no intentional operation for cleaning is performed other than contacting the composition. For example, it can be understood that the contacted composition naturally flows down the hard surface or that vibrations not intended for cleaning are transmitted to the hard surface when the hard surface is cleaned without applying mechanical force. On the other hand, for example, a method of scrubbing the hard surface, a method of cleaning by applying a water stream containing the composition to the hard surface, a method of immersing the hard surface in a cleaning medium containing the composition, stirring and cleaning, It can be understood that a hard surface is cleaned by applying mechanical force.
The liquid detergent composition for hard surface is brought into contact with a hard surface to which oily soil containing solid fat is attached without diluting, and the detergent composition is intentionally diluted with water and then solid. It should not be brought into contact with a hard surface to which oily dirt including fat is adhered. For example, the liquid detergent composition for hard surface is brought into contact with a hard surface to which water droplets or the like are adhered, or the liquid detergent composition for hard surface is brought into contact with the hard surface, and then water droplets are adhered to the hard surface. When it does, it can be understood that the liquid detergent composition for hard surface is brought into contact with a hard surface to which oily soil containing solid fat is adhered without diluting.
After standing, it is usually rinsed with water. When rinsing, mechanical force (physical force) may be applied by hand, or it may be simply rinsed with a water stream.
As the cleaning method of the present invention, the hard surface liquid cleaning composition is brought into contact with a hard surface to which oily soil containing solid fat is adhered, and cleaning with a flexible material, cleaning with running water, and cleaning with ultrasonic waves is performed. There is a cleaning method in which neither is performed and the product is left as it is without applying mechanical force. That is, as the cleaning method of the present invention, the liquid detergent composition for hard surface is brought into contact with a hard surface to which oily soil containing solid fat is attached, and frictional force by a flexible material such as sponge is used. There is a cleaning method in which the flow force by a shower in the machine or the like and the vibration by ultrasonic waves are not used, and they are left as they are without applying mechanical force.

The oil stain containing solid fat is a stain containing oil and fat, and the oil and fat exhibits a solid at room temperature (for example, 20 ° C.). The oil stain containing solid fat is typically an oil stain containing solid fat, and an oil stain containing solid fat and liquid oil. The form of the oil stain containing solid fat when contacting the liquid detergent composition for hard surface may be a state where solid fat and liquid oil are mixed.

In the present invention, it is preferable that the stock solution of the liquid detergent composition for hard surface is directly attached to the hard surface to which oily soil containing solid fat is attached without changing the composition. For example, it is preferable that the hard surface liquid cleaning composition is brought into contact with a hard surface to which oily soil containing solid fat is adhered without adhering to a water-containing sponge or the like. After contacting the hard surface, the composition of the hard surface liquid detergent composition may vary. That is, after contacting the hard surface, the composition of the liquid detergent composition for hard surface may be diluted or concentrated.

In addition, a concentrated composition containing the components (I) and (II) of the present invention is prepared, and the concentrated composition is diluted with water to prepare a liquid detergent composition for hard surface used in the present invention. The hard surface may be contacted. That is, the hard surface liquid cleaning composition used in the present invention is prepared by diluting the concentrated composition containing the components (I) and (II) of the present invention with water, and the hard surface liquid cleaning composition It may be a method for cleaning a hard surface in which an object is brought into contact with a hard surface to which oily soil containing solid fat is adhered without being diluted and cleaned without applying mechanical force.

In the method for cleaning a hard surface according to the present invention, the liquid detergent composition for hard surface is brought into contact with the hard surface and then left without applying mechanical force (not applied). That is, there is a cleaning method in which contact is made without using a flexible material such as sponge or fingers, and the device is left as it is without applying mechanical force. After standing, it is usually rinsed with water. When rinsing, mechanical force (physical force) may be applied by hand, etc., or simply rinsing with a water flow.

In the hard surface cleaning method of the present invention, the hard surface liquid detergent composition is preferably 0.1 g or more, more preferably 0.3 g or more, with respect to the hard surface area of 100 cm ² as the object. More preferably, it is 0.4 g or more, and preferably 5 g or less, more preferably 3 g or less, and still more preferably 2 g or less.

In the method for cleaning a hard surface of the present invention, from the viewpoint of enhancing the detergency, the hard surface liquid detergent composition is preferably contacted with the hard surface for 10 seconds or more, more preferably 20 seconds or more, and even more preferably 30 seconds. More preferably, 40 seconds or more, still more preferably 50 seconds or more, still more preferably 1 minute or more, and from the same viewpoint, preferably 60 minutes or less, more preferably 30 minutes or less, still more preferably 20 Leave for a minute or less, more preferably 10 minutes or less, and even more preferably 5 minutes or less. In this case, the time when the composition first contacts the hard surface may be set as the start of leaving.
In addition, the temperature at the time of leaving is room temperature, for example, 10 degreeC or more and 30 degrees C or less.

In the method for cleaning a hard surface of the present invention, from the viewpoint of enhancing the cleaning power, it is preferably 10 seconds or more, more preferably 20 seconds or more, still more preferably 30 seconds or more, still more preferably 40 seconds or more, and even more preferably. Is 50 seconds or more, more preferably 1 minute or more, and from the same viewpoint, preferably 60 minutes or less, more preferably 30 minutes or less, still more preferably 20 minutes or less, even more preferably 10 minutes or less, and even more. Preferably, the hard surface liquid cleaning composition is brought into contact with the hard surface to be cleaned for 5 minutes or less.
The temperature during the contact may be room temperature, for example, 10 ° C. or higher and 30 ° C. or lower.

In the method for cleaning a hard surface according to the present invention, a hard surface to which oily soil containing solid fat is attached may be immersed in the liquid detergent composition for hard surface and brought into contact therewith. From the viewpoint of enhancing, a method of spraying or applying the liquid detergent composition for hard surface and bringing it into contact with the hard surface to which oily soil containing solid fat is attached is preferable.
The method for bringing the hard surface liquid detergent composition into contact with the hard surface to which oily soil containing solid fat is adhered is preferably spraying or coating, and the hard surface liquid detergent composition is sprayed in the form of droplets. A method of applying or foaming is more preferable. Specifically, it is preferable that the liquid detergent composition for hard surface is brought into contact with the hard surface to which the oil stain containing solid fat is adhered using a spray means. The hard surface liquid detergent composition, which is obtained by filling the hard surface liquid detergent composition used in the present invention in a container having a sprayer, contains the solid surface fat. It is more preferable to bring it into contact with a hard surface to which oil stains adhere. The present invention provides a detergent product for hard surface containing a spray container, which is obtained by filling a container having a sprayer with the liquid detergent composition for hard surface used in the present invention.

Examples of the container including the sprayer include a manual spray device that does not use a propellant such as a trigger spray container and a pump spray container, and an aerosol that uses a propellant. The container having the sprayer is preferably a trigger spray capable of spraying or applying the contents in the form of droplets or bubbles, and a trigger spray having a mechanism for spraying the contents in droplets or A trigger type spray having a mechanism for forming bubbles (bubble forming mechanism) is more preferable.

In the case of using the trigger type spray having a mechanism for spraying the liquid detergent composition for hard surface in the form of droplets in the detergent article for hard surface containing the spray container, the spray nozzle of the spray container for containing the composition is used. The diameter of the nozzle is preferably 0.1 mm or more, more preferably 0.3 mm, in order to facilitate spraying, the sprayed droplets are not rough, are not sprayed linearly, and the sprayable area is not extremely narrow. The range is preferably 2 mm or less, more preferably 1 mm or less.
In the case of using a trigger type spray equipped with a mechanism for spraying in the form of droplets, the hard surface cleaning article containing a spray container is preferably 0.1 mL or more, more preferably 0.3 mL or more, in one operation. And preferably 5 mL or less, More preferably, 2 mL or less of a composition is sprayed.

Further, in the case of the detergent article for hard surface containing a spray container, when a trigger type spray having a foam formation mechanism is used, a plurality of rod-shaped protrusions are preferably placed in a spin element and a circular space portion having a diameter of 4 to 8 mm. It is preferable to have a liquid passage plate. Here, the spin element is a mechanism that applies a spin to the flow of the liquid substance through the spin element, and finally ejects the liquid from the nozzle, and the detailed structure thereof is disclosed in JP-A-8-332422 and JP-A-8-108102. 4B, FIG. 1 of JP-A-2002-68265, and the like can be referred to.

When using a trigger spray with a foam formation mechanism, the spray container hard surface cleaner article is preferably 0.5 mL or more, more preferably 1 mL or more, and preferably 30 mL or less in a single operation. More preferably, 15 mL or less, more preferably 5 mL or less of the composition is sprayed.

The liquid passage plate, which is another member of the foam formation mechanism, is preferably a circular space portion having a diameter of 5 to 7 mm, preferably having 3 to 8 rod-like protrusions. In this case, a rectangular bar-shaped protrusion having a width of 0.8 to 1.2 mm and a length of 2 to 4 mm is preferable. Further, the area occupied by the rod-shaped protrusions with respect to the space portion excluding the rod-shaped protrusions is preferably 30 area% or more, more preferably 40 area% or more, and preferably 90 area% or less, more preferably 80 area% or less. More preferably, it is 70 area% or less, and by installing such a liquid passage plate, the adhesion and retention of bubbles to the vertical surface becomes good.

As the container for the detergent article for hard surface containing a spray container, a generally used container can be used. For example, polyethylene, polypropylene, or polyethylene terephthalate is obtained as a raw material, and can be manufactured by blow molding or the like. The wall thickness of the container may be different from the bottom and side surfaces, and is preferably 0.01 to 2 mm, and the capacity of the container is preferably 100 to 1000 mL. The amount of the hard surface liquid detergent composition filled in the container is preferably 200 to 500 mL in terms of handling. In addition, the filling of the liquid is performed leaving a common sense gap.

The method for cleaning a hard surface of the present invention is preferable as a method for cleaning a hard surface of a hard article, a hard surface of a tableware and a hard article around a kitchen, a tableware, and a hard surface of a tableware. Further, it is preferable as a hand washing method for a hard surface of a hard article, a hand washing method for a hard surface of a tableware and a hard article around the kitchen, a hand washing method for a tableware, and a hand washing method for a hard surface of a tableware.

The method for cleaning a hard surface of the present invention targets a hard surface of a hard article, preferably a hard surface of tableware and a hard article around the kitchen, more preferably tableware, and more preferably a hard surface of tableware. Examples of the hard article include food manufacturing equipment such as pipes and parts, hard articles around the kitchen, tableware, and the like.
Hard articles around the kitchen are articles used around the kitchen, specifically,
(1) Refrigerator, cupboard and other food, tableware, cooking utensil storage location,
(2) A food cooking place such as a drain, a cooking table, a range hood, a sink, a gas range, and a microwave oven, and (3) a floor or a wall around the storage place or the cooking place. In the present invention, these are referred to as “hard articles around the kitchen” for convenience.
As tableware, specifically,
(I) so-called tableware such as dishes and bowls,
(Ii) Storage containers such as tappers and bottles,
(Iii) Cooking utensils such as knives, cutting boards, pans, frying pans, grilled fish,
(Iv) Examples include members and utensils that come into contact with foodstuffs such as food processors and cooking appliances such as mixers. In the present invention, these are referred to as “tableware” for convenience.
In addition, the hard surface cleansing method of the present invention is preferably intended for hard surfaces of articles selected from tableware, storage containers, cooking utensils, and cooking appliances, and further includes dishes, bowls, tappers, bottles, kitchen knives, More preferably, the target is a hard surface of an article selected from cutting boards, pans, pans, grilled fish, food processors, and mixers.
Examples of the material of the hard surface targeted for the method for cleaning a hard surface of the present invention include plastic (including silicone resin), metal, earthenware, wood, and combinations thereof.
And the washing | cleaning method of the hard surface of this invention can wash | clean effectively the oil stain containing the solid fat adhering to these hard surfaces.

In the hard surface cleaning method of the present invention, the hard surface liquid detergent composition used in the present invention is brought into direct contact with the hard surface. And since it is sufficient to leave the composition in contact, it is not necessary to apply mechanical force such as scrubbing with a flexible material such as sponge during cleaning.
Therefore, the hard surface cleaning method of the present invention,
(1) Rigid articles that are inconvenient for hand-washing such as food manufacturing equipment, refrigerators, cupboards, pipes, parts and drains, water bottles, tumblers, kettles, pots, etc.
(2) Oil stains that contain solid fat such as food, tableware, cooking utensils storage areas, cooking tables, range hoods, sinks, gas ranges, microwave ovens, and other kitchen cooking areas such as floors and walls. An article having an extensive hard surface,
(3) Hazardous items such as knives, peelers, graters, slicers, juicer blades, food processor blades, etc.
(4) The present invention can also be applied to an article that is difficult to clean using a flexible material such as a sponge, such as an article having a complicated shape. In the present invention, the hard surface may be washed without applying mechanical force, and then rubbed if necessary.
Further, in the method for cleaning a hard surface of the present invention, the liquid detergent composition for hard surface, preferably the foamy composition, is applied to the hard surface and left as it is. Can be kept for a long time.
The method for cleaning a hard surface of the present invention comprises a step of rinsing the hard surface contacted with the hard surface liquid detergent composition with water, preferably the hard surface contacted with the hard surface liquid detergent composition. Can be rinsed with water after standing.

<Liquid detergent composition for hard surface>
The liquid detergent composition for hard surface of the present invention contains 1% by mass or more of a surfactant (hereinafter referred to as component (I)), 1% by mass or more of a chelating agent (hereinafter referred to as component (II)), and water. And (I) component / (II) component mass ratio is 0.25 or more, and the electrical conductivity in 25 degreeC is 0.70 S / m or more, It is a liquid detergent composition for hard surfaces. This liquid detergent composition includes a liquid detergent composition in which the hard surface is replaced with tableware in the following.
In the liquid detergent composition for hard surface of the present invention, specific examples and preferred embodiments of the component (I), the component (II), the preferred ratio of the mass ratio of the component (I) / (II), the electric conductivity, etc. The matters described in the liquid cleaning composition for hard surface used in the cleaning method of the present invention can be appropriately applied. The hard surface liquid detergent composition used in the cleaning method of the present invention may be the hard surface liquid detergent composition of the present invention.
The hard surface liquid detergent composition of the present invention is preferably an oil removing hard surface liquid detergent composition.
The liquid detergent composition for a hard surface of the present invention is preferably used for cleaning a hard surface without dilution, and more preferably used by directly contacting the hard surface without dilution.

The liquid detergent composition for a hard surface of the present invention is preferably for a hard surface of a hard article, further for a hard surface of tableware or a hard article around a kitchen, further for tableware, and further for a hard surface of tableware.
Specifically, the liquid detergent composition for a hard surface of the present invention is preferably a detergent for application to a hard surface of a hard article, more preferably a wash for application to a hard surface of a hard article around a tableware or kitchen. A detergent for application to tableware, more preferably a detergent for application to a hard surface of tableware.
Also, specifically, the liquid detergent composition for hard surface of the present invention is preferably a detergent for spraying on the hard surface of a hard article, more preferably spraying on the hard surface of a hard article around tableware or kitchen. A detergent for spraying tableware, more preferably a detergent for spraying tableware, and still more preferably a detergent for spraying hard surfaces of tableware.

Since the liquid detergent composition for hard surfaces of the present invention is excellent in the detergency of solid fat, it is intended for cleaning hard articles, preferably tableware and hard articles around the kitchen, more preferably tableware.
Examples of the hard article, the hard article around the kitchen, and the tableware include those described above.
Moreover, the liquid detergent composition for hard surfaces of the present invention is preferably for articles selected from tableware, storage containers, cooking utensils, and cooking appliances, and further, dishes, bowls, tappers, bottles, kitchen knives, cutting boards, More preferably, it is for an article selected from a pan, a frying pan, a grilled fish, a food processor, and a mixer.
The material of the hard surface to be cleaned of the present invention, the hard surface of the tableware and the kitchen, and the hard surface of the tableware is plastic (including silicone resin), metal, pottery, wood, and combinations thereof. Can be mentioned.

Examples of the present invention are illustrated below. The matters described in the hard surface cleaning method and the hard surface liquid cleaning composition of the present invention can be appropriately applied to these embodiments. These embodiments include embodiments in which the hard surface is replaced with tableware.

<1>
(I) Surfactant (hereinafter referred to as “component (I)”) 1% by mass or more, (II) Chelating agent (hereinafter referred to as “component (II)”) 1% by mass or more, and water, (A) contains an anionic surfactant (hereinafter referred to as component (a)), the mass ratio of component (II) / component (I) is 0.25 or more, and the electrical conductivity at 25 ° C. is 0.70S. A method for cleaning a hard surface, wherein a liquid cleaning composition for hard surface that is at least / m is brought into contact with a hard surface to which oily soil containing solid fat is adhered, and cleaning is performed without applying mechanical force.

<2>
(A) component is (a1) a sulfosuccinic acid ester represented by the following general formula (a1) or a salt thereof (hereinafter referred to as (a1) component), and (a2) a hydrocarbon group having 8 to 21 carbon atoms An anionic surfactant having a sulfate group or a sulfonic acid group [excluding the component (a1)] (hereinafter referred to as the component (a2)), which is one or more selected from the group consisting of the above <1> The method for cleaning a hard surface as described.

[In formula, R < ^1a >, R < ^2a > is respectively independently a C5-C18 hydrocarbon group. A ¹ and A ² are each independently an alkylene group having 2 or more and 4 or less carbon atoms, and x and y are average added mole numbers, and are each independently 0 or more and 6 or less. M ¹ is a hydrogen atom or a cation. ]

<3>
In general formula (a1), R ^1a and R ^2a each independently represent 5 or more carbon atoms, preferably 6 or more, more preferably 7 or more, and 18 or less carbon atoms, preferably 16 or less, and more preferably 14 carbon atoms. The hard surface cleaning method according to the above <2>, which is the following hydrocarbon group.

<4>
In general formula (a1), R ^1a and R ^2a are each preferably hexyl, octyl, nonyl, decyl, dodecyl, tridecyl, tetradecyl, 2-ethylhexyl, n-octyl, sec An alkyl group selected from an octyl group, an isopentyl group, an isononyl group, an isodecyl group, and a cyclohexyl group, more preferably an n-octyl group, a sec-octyl group, a decyl group, an isodecyl group, and a 2-ethylhexyl group. The hard surface cleaning according to <2> or <3>, which is an alkyl group, more preferably an alkyl group selected from a 2-ethylhexyl group and a tridecyl group, and still more preferably a 2-ethylhexyl group. Method.

<5>
In the general formula (a1), the cation of M ¹ is an inorganic cation selected from sodium ion, ammonium ion, potassium ion, and magnesium ion, and monoethanol ammonium ion, diethanol ammonium ion, triethanol ammonium ion, mole Any one of the above <2> to <4>, which is a cation selected from organic cations selected from folinium ions, preferably an inorganic cation selected from sodium ions, ammonium ions, potassium ions and magnesium ions The method for cleaning a hard surface according to 1.

<6>
(A2) The hydrocarbon group of the component has 8 or more, preferably 10 or more, more preferably 12 or more, and 21 or less, preferably 18 or less, more preferably 14 or less, and still more preferably 12 or less. The method for cleaning a hard surface according to any one of <2> to <5>.

<7>
The hard surface cleaning method according to any one of <2> to <6>, wherein the component (a2) is a compound of the following general formula (a2).
R ^11a —O— (R ^12a O) _n —SO ₃ M ² (a2)
[Wherein, R ^11a is a linear or branched alkyl group having 8 to 21 carbon atoms, R ^12a is an ethylene group and / or a propylene group, n is an average added mole number, and is 0 or more. The number is 6 or less. M ² is a hydrogen atom or a cation, preferably an inorganic or organic cation. ]

<8>
In general formula (a2), R ^11a is a linear or branched alkyl having 8 or more carbon atoms, preferably 10 or more, and 21 or less, preferably 18 or less, more preferably 14 or less, and even more preferably 12 or less. The method for cleaning a hard surface according to <7>, which is a group.

<9>
The liquid detergent composition for hard surface contains (b) an amphoteric surfactant (hereinafter referred to as component (b)) as component (I), according to any one of <1> to <8>. How to clean hard surfaces.

<10>
(B) The hard surface cleaning method according to <9>, wherein the component is sulfobetaine.

<11>
The sulfobetaine is an N-alkyl-N, N-dimethyl-N-sulfopropylammonium sulfobetaine having an alkyl group of preferably 10 or more, preferably 18 or less, more preferably 14 or less, and the alkyl group has a carbon number of Preferably, the number of carbon atoms of the N-alkyl-N, N-dimethyl-N- (2-hydroxysulfopropyl) ammonium sulfobetaine, alkanoyl group is preferably 10 or more, preferably 10 or less, preferably 18 or less, more preferably 14 or less, Preferably, the number of carbon atoms in the N-alkanoylaminopropyl-N, N-dimethyl-N-sulfopropylammonium sulfobetaine of 18 or less, more preferably 14 or less, and the alkanoyl group is preferably 10 or more, preferably 18 or less, more preferably Is 14 or less N-alkanoylaminopropyl N, N-dimethyl -N- is a sulfobetaine selected from (2-hydroxy-sulfopropyl) ammonium sulfobetaine, a method of cleaning a hard surface according to <10>.

<12>
In the liquid detergent composition for hard surface, the component (I) is 1% by mass or more, preferably 2% by mass or more, more preferably 3% by mass or more, still more preferably 4% by mass or more, and preferably 18%. <1% by mass, more preferably 15% by mass or less, further preferably 12% by mass or less, more preferably 10% by mass or less, still more preferably 8% by mass or less, and further preferably 6% by mass or less. The method for cleaning a hard surface according to any one of> to <11>.

<13>
In the liquid detergent composition for hard surface, the component (a) is preferably 0.25% by mass or more, more preferably 0.5% by mass or more, further preferably 1% by mass or more, and further preferably 2% by mass. Or more, more preferably 4% by mass or more, and preferably 10% by mass or less, more preferably 8% by mass or less, still more preferably 6% by mass or less, and further preferably 5% by mass or less. <12> The method for cleaning a hard surface according to any one of the above.

<14>
In the component (I) of the hard surface liquid detergent composition, the proportion of the component (a) is preferably 10% by mass or more, more preferably 20% by mass or more, still more preferably 30% by mass or more, and still more preferably. Any of the above <1> to <13>, which is 40% by mass or more, and preferably 90% by mass or less, more preferably 80% by mass or less, further preferably 70% by mass or less, and further preferably 60% by mass or less. A method for cleaning a hard surface according to claim 1.

<15>
In the hard surface liquid detergent composition, the component (a1) is preferably 0.25% by mass or more, more preferably 0.5% by mass or more, still more preferably 0.8% by mass or more, and still more preferably. 1% by mass or more, more preferably 1.7% by mass or more, and preferably 30% by mass or less, more preferably 20% by mass or less, still more preferably 15% by mass or less, still more preferably 10% by mass or less, The method for cleaning a hard surface according to any one of <2> to <14>, further comprising 8% by mass or less, more preferably 5% by mass or less.

<16>
In the liquid detergent composition for hard surface, the component (a2) is 0% by mass or more and 3% by mass or less, preferably 2.5% by mass or less, more preferably 2% by mass or less, and further preferably 1%. 0.5% by mass or less, more preferably 1% by mass or less, still more preferably less than 1% by mass, still more preferably 0.5% by mass or less, still more preferably less than 0.5% by mass, and still more preferably. The method for cleaning a hard surface according to any one of <2> to <15>, wherein the hard surface is contained in an amount of 0.1% by mass or less, more preferably less than 0.1% by mass.

<17>
The mass ratio of component (a2) / component (a1) in the liquid detergent composition for hard surface is preferably 1 or less, more preferably 0.8 or less, still more preferably 0.6 or less, and still more preferably 0. 4 or less, more preferably 0.2 or less, more preferably 0.1 or less, more preferably less than 0.1, still more preferably 0.05 or less, and preferably 0 or more, or 0, The method for cleaning a hard surface according to any one of <2> to <16>.

<18>
The mass ratio of (a1) component / (I) component in the hard surface liquid detergent composition is preferably 0.1 or more, more preferably 0.3 or more, and preferably 0.9 or less, more preferably. The hard surface cleaning method according to any one of <2> to <17>, wherein is 0.7 or less.

<19>
In the liquid detergent composition for hard surface, the component (b) is preferably 0.25% by mass or more, more preferably 0.5% by mass or more, still more preferably 1% by mass or more, and preferably 8% by mass. % Or less, preferably 6% by mass or less, more preferably 4% by mass or less, and the hard surface cleaning method according to any one of <9> to <18>.

<20>
The liquid detergent composition for hard surface is preferably 0.25% by mass or more, more preferably 0.5% by mass or more, still more preferably 1% by mass or more, and preferably 8% by mass or less of sulfobetaine. More preferably, the hard surface cleaning method according to any one of <10> to <19>, which is contained in an amount of 6% by mass or less, more preferably 4% by mass or less.

<21>
The liquid detergent composition for hard surface contains (a) component and (b) component, and the mass ratio of (a) component / (b) component exceeds 0, preferably 0.1 or more. Preferably 0.2 or more, more preferably 0.3 or more, still more preferably 0.5 or more, still more preferably 0.7 or more, and preferably 10 or less, more preferably 8 or less, still more preferably 6 or less. The hard surface cleaning method according to any one of <9> to <20>, more preferably 4 or less, and further preferably 3 or less.

<22>
The mass ratio of component (b) / component (I) in the hard surface liquid detergent composition is preferably 0.1 or more, more preferably 0.3 or more, and preferably 0.9 or less, more preferably. The method for cleaning a hard surface according to any one of <9> to <21>, wherein is 0.7 or less.

<23>
The hard surface according to any one of <1> to <22>, wherein the component (II) is one or more compounds selected from aminocarboxylic acids, hydroxycarboxylic acids, hydroxyxphosphonic acids, and salts thereof. Cleaning method.

<24>
Aminocarboxylic acids and salts thereof are ethylenediaminetetraacetic acid (EDTA), nitrilotriacetic acid (NTA), iminodiacetic acid, diethylenetriaminepentaacetic acid (DPTA), N-hydroxyethyl-ethylenediaminetriacetic acid (HEDTA), methylglycine diacetic acid ( The hard surface cleaning method according to <23>, which is one or more selected from MGDA), aspartic acid diacetic acid (ASDA), glutamic acid diacetic acid (GLDA), and salts thereof.

<24>
<22> or <23>, wherein the hydroxycarboxylic acid and a salt thereof are compounds selected from aliphatic hydroxycarboxylic acid and a salt thereof, and further a compound selected from malic acid, citric acid and a salt thereof. To clean hard surfaces.

<25>
The liquid detergent composition for hard surface contains, as component (II), hydroxycarboxylic acid and a salt thereof, further aliphatic hydroxycarboxylic acid and a salt thereof, further citric acid and a salt thereof, and further citrate. The hard surface cleaning method according to any one of <1> to <24>.

<26>
In the hard surface liquid detergent composition, the component (II) is 1% by mass or more, preferably 1.5% by mass or more, more preferably 1.8% by mass or more, and further preferably 2% by mass or more, and , Preferably 18% by mass or less, more preferably 15% by mass or less, further preferably 12% by mass or less, further preferably 10% by mass or less, still more preferably 8% by mass or less, and further preferably 5% by mass or less. The method for cleaning a hard surface according to any one of <1> to <25>.

<27>
The mass ratio of the component (II) / component (I) in the liquid detergent composition for hard surface is 0.25 or more, preferably 0.30 or more, more preferably 0.35 or more, more preferably 0.40. Or more, more preferably 0.50 or more, further preferably 0.60 or more, and preferably 5.0 or less, more preferably 4.0 or less, still more preferably 3.0 or less, still more preferably 2.0 or less. More preferably, it is 1.5 or less, more preferably 1.0 or less, still more preferably 0.90 or less, and even more preferably 0.70 or less, in any one of <1> to <26> above Surface cleaning method.

<28>
The liquid cleaning composition for hard surface contains the component (a) and the component (b), and the mass ratio of component (II) / (I) in the liquid cleaning composition for hard surface is 0. .25 or more, preferably 0.30 or more, more preferably 0.35 or more, further preferably 0.40 or more, more preferably 0.50 or more, more preferably 0.60 or more, and preferably 5.0. Or less, more preferably 4.0 or less, still more preferably 3.0 or less, still more preferably 2.0 or less, still more preferably 1.5 or less, still more preferably 1.0 or less, still more preferably 0.90 or less. The method for cleaning a hard surface according to any one of <9> to <27>.

<29>
The electrical conductivity (stock solution, 25 ° C., S / m) of the hard surface liquid detergent composition is 0.70 or more, preferably 0.80 or more, more preferably 1.0 or more, and still more preferably 1. 2 or more, more preferably 1.4 or more, further preferably 1.6 or more, and preferably 10 or less, more preferably 9.0 or less, still more preferably 8.0 or less, still more preferably 7.0 or less, The hard surface cleaning method according to any one of <1> to <28>, more preferably 6.0 or less, and still more preferably 5.5 or less.

<30>
The method for cleaning a hard surface according to any one of <1> to <29>, wherein the liquid detergent composition for hard surface contains (III) a solvent (hereinafter referred to as component (III)).

<31>
The component (III) is preferably a water-soluble organic solvent having 2 or more carbon atoms, more preferably 3 or more carbon atoms, preferably 10 or less carbon atoms, more preferably 8 or less carbon atoms, ethanol, isopropyl alcohol, Ethylene glycol, propylene glycol, diethylene glycol, dipropylene glycol, glycerin, isoprene glycol, propylene glycol monomethyl ether, propylene glycol monoethyl ether, 3-methyl-3-methoxybutanol, phenoxyethanol, phenyl glycol, phenoxyisopropanol, butyl diglycol, dibuty The method for cleaning a hard surface according to <30>, wherein the method is a water-soluble organic solvent selected from range glycol and benzyl alcohol.

<32>
In the hard surface liquid detergent composition, the component (III) is preferably 0.5% by mass or more, more preferably 2% by mass or more, still more preferably 4% by mass or more, and preferably 30% by mass or less. The hard surface cleaning method according to <30> or <31>, wherein the hard surface is more preferably 20% by mass or less, and still more preferably 10% by mass or less.

<33>
The mass ratio of component (III) / component (I) in the liquid detergent composition for hard surface is preferably 0.5 or more, more preferably 1 or more, still more preferably 1.2 or more, and even more preferably 1 The hard surface according to any one of <30> to <32>, which is 5 or more, and preferably 5 or less, more preferably 4 or less, still more preferably 3 or less, and even more preferably 2.5 or less. Cleaning method.

<34>
The solid content in the hard surface liquid detergent composition is 2% by mass or more, preferably 3% by mass or more, more preferably 4% by mass or more, and preferably 60% by mass or less, more preferably 50%. % By mass or less, more preferably 45% by mass or less, still more preferably 40% by mass or less, still more preferably 35% by mass or less, still more preferably 30% by mass or less, still more preferably 25% by mass or less, and even more. The hard surface cleaning method according to any one of <1> to <33>, preferably 20% by mass or less.

<35>
After contacting the hard surface liquid detergent composition with the hard surface, preferably 10 seconds or more, more preferably 20 seconds or more, still more preferably 30 seconds or more, even more preferably 40 seconds or more, and even more preferably 50 seconds. Or more, more preferably 1 minute or more, and preferably 60 minutes or less, more preferably 30 minutes or less, still more preferably 20 minutes or less, still more preferably 10 minutes or less, and even more preferably 5 minutes or less. The method for cleaning a hard surface according to any one of <1> to <34>.

<36>
The liquid detergent composition for hard surface and the hard surface are preferably 10 seconds or longer, more preferably 20 seconds or longer, still more preferably 30 seconds or longer, still more preferably 40 seconds or longer, still more preferably 50 seconds or longer. More preferably 1 minute or more, and preferably 60 minutes or less, more preferably 30 minutes or less, still more preferably 20 minutes or less, still more preferably 10 minutes or less, even more preferably 5 minutes or less, The method for cleaning a hard surface according to any one of <1> to <35>.

<37>
The hard surface liquid detergent composition according to any one of <1> to <36>, wherein the hard surface liquid detergent composition is sprayed or applied without dilution, preferably without dilution, to contact the hard surface. Cleaning method.

<38>
The hard surface according to any one of <1> to <37>, wherein the hard surface is a hard surface of a hard article, a hard surface of a hard article around a tableware and a kitchen, a tableware, and a hard surface of a tableware. Surface cleaning method.

<39>
The pH at 25 ° C. of the composition is preferably 4 or more, more preferably 5 or more, still more preferably 5.5 or more, preferably 10 or less, preferably 9 or less, more preferably 8 or less, still more preferably 7 or less. The method for cleaning a hard surface according to any one of <1> to <38>, wherein

<40>
(I) Surfactant (hereinafter referred to as “component (I)”) 1% by mass or more, (II) Chelating agent (hereinafter referred to as “component (II)”) 1% by mass or more, and water, (A) contains an anionic surfactant (hereinafter referred to as component (a)), the mass ratio of component (II) / component (I) is 0.25 or more, and the electrical conductivity at 25 ° C. is 0.70S. / M or more liquid detergent composition for hard surfaces.

<41>
(A) component is (a1) a sulfosuccinic acid ester represented by the following general formula (a1) or a salt thereof (hereinafter referred to as (a1) component), and (a2) a hydrocarbon group having 8 to 21 carbon atoms An anionic surfactant having a sulfate ester group or a sulfonic acid group [excluding the component (a1)] [hereinafter referred to as the component (a2)], which is one or more selected from the group consisting of the above <40> The liquid detergent composition for hard surfaces as described.

[In formula, R < ^1a >, R < ^2a > is respectively independently a C5-C18 hydrocarbon group. A ¹ and A ² are each independently an alkylene group having 2 or more and 4 or less carbon atoms, and x and y are average added mole numbers, and are each independently 0 or more and 6 or less. M ¹ is a hydrogen atom or a cation. ]

<42>
In general formula (a1), R ^1a and R ^2a each independently represent 5 or more carbon atoms, preferably 6 or more, more preferably 7 or more, and 18 or less carbon atoms, preferably 16 or less, and more preferably 14 carbon atoms. The liquid detergent composition for hard surfaces according to <41>, which is the following hydrocarbon group.

<43>
In general formula (a1), R ^1a and R ^2a are each preferably hexyl, octyl, nonyl, decyl, dodecyl, tridecyl, tetradecyl, 2-ethylhexyl, n-octyl, sec An alkyl group selected from an octyl group, an isopentyl group, an isononyl group, an isodecyl group, and a cyclohexyl group, more preferably an n-octyl group, a sec-octyl group, a decyl group, an isodecyl group, and a 2-ethylhexyl group. The hard surface liquid according to <41> or <42>, wherein the liquid is an alkyl group, more preferably an alkyl group selected from a 2-ethylhexyl group and a tridecyl group, and still more preferably a 2-ethylhexyl group. Cleaning composition.

<44>
In the general formula (a1), the cation of M ¹ is an inorganic cation selected from sodium ion, ammonium ion, potassium ion, and magnesium ion, and monoethanol ammonium ion, diethanol ammonium ion, triethanol ammonium ion, mole Any one of the above <41> to <43>, which is a cation selected from organic cations selected from folinium ions, preferably an inorganic cation selected from sodium ions, ammonium ions, potassium ions and magnesium ions The liquid detergent composition for hard surfaces described in 1.

<45>
(A2) The hydrocarbon group of the component has 8 or more, preferably 10 or more, more preferably 12 or more, and 21 or less, preferably 18 or less, more preferably 14 or less, and still more preferably 12 or less. The liquid detergent composition for hard surfaces according to any one of the above items <41> to <44>.

<46>
The liquid detergent composition for hard surface according to any one of <41> to <45>, wherein the component (a2) is a compound of the following general formula (a2).
R ^11a —O— (R ^12a O) _n —SO ₃ M ² (a2)
[Wherein, R ^11a is a linear or branched alkyl group having 8 to 21 carbon atoms, R ^12a is an ethylene group and / or a propylene group, n is an average added mole number, and is 0 or more. The number is 6 or less. M ² is a hydrogen atom or a cation, preferably an inorganic or organic cation. ]

<47>
In general formula (a2), R ^11a is a linear or branched alkyl having 8 or more carbon atoms, preferably 10 or more, and 21 or less, preferably 18 or less, more preferably 14 or less, and even more preferably 12 or less. The liquid detergent composition for hard surfaces according to <46>, which is a group.

<48>
The liquid detergent composition for hard surfaces according to any one of <40> to <47>, which contains (b) an amphoteric surfactant (hereinafter referred to as component (b)) as component (I).

<49>
(B) The liquid detergent composition for hard surfaces as described in <48> whose component is sulfobetaine.

<50>
The sulfobetaine is an N-alkyl-N, N-dimethyl-N-sulfopropylammonium sulfobetaine having an alkyl group of preferably 10 or more, preferably 18 or less, more preferably 14 or less, and the alkyl group has a carbon number of Preferably, the number of carbon atoms of the N-alkyl-N, N-dimethyl-N- (2-hydroxysulfopropyl) ammonium sulfobetaine, alkanoyl group is preferably 10 or more, preferably 10 or less, preferably 18 or less, more preferably 14 or less, Preferably, the number of carbon atoms in the N-alkanoylaminopropyl-N, N-dimethyl-N-sulfopropylammonium sulfobetaine of 18 or less, more preferably 14 or less, and the alkanoyl group is preferably 10 or more, preferably 18 or less, more preferably Is 14 or less N-alkanoylaminopropyl N, N-dimethyl-N-(2-hydroxy-sulfopropyl) a sulfobetaine selected from ammonium sulfobetaine, the hard surface liquid detergent composition according to <49>.

<51>
The component (I) is 1% by mass or more, preferably 2% by mass or more, more preferably 3% by mass or more, still more preferably 4% by mass or more, and preferably 18% by mass or less, more preferably 15% by mass or less. More preferably, it is 12% by mass or less, more preferably 10% by mass or less, further preferably 8% by mass or less, and further preferably 6% by mass or less, according to any one of the above <40> to <50>. Liquid detergent composition for hard surfaces.

<52>
The component (a) is preferably 0.25% by mass or more, more preferably 0.5% by mass or more, still more preferably 1% by mass or more, still more preferably 2% by mass or more, further preferably 4% by mass or more, and The hard surface according to any one of <40> to <51>, preferably 10% by mass or less, more preferably 8% by mass or less, further preferably 6% by mass or less, and further preferably 5% by mass or less. Liquid detergent composition.

<53>
In the component (I), the proportion of the component (a) is preferably 10% by mass or more, more preferably 20% by mass or more, still more preferably 30% by mass or more, still more preferably 40% by mass or more, and preferably 90%. The liquid detergent for hard surfaces according to any one of the above <40> to <52>, which is not more than mass%, more preferably not more than 80 mass%, still more preferably not more than 70 mass%, still more preferably not more than 60 mass%. Composition.

<54>
The component (a1) is preferably 0.25% by mass or more, more preferably 0.5% by mass or more, still more preferably 0.8% by mass or more, still more preferably 1% by mass or more, and still more preferably 1. 7% by mass or more, and preferably 30% by mass or less, more preferably 20% by mass or less, still more preferably 15% by mass or less, still more preferably 10% by mass or less, still more preferably 8% by mass or less, and still more. The liquid detergent composition for hard surface according to any one of <41> to <53>, preferably 5% by mass or less.

<55>
The component (a2) is 0% by mass or more and 3% by mass or less, preferably 2.5% by mass or less, more preferably 2% by mass or less, still more preferably 1.5% by mass or less, and still more preferably 1%. % By mass or less, more preferably less than 1% by mass, still more preferably 0.5% by mass or less, still more preferably less than 0.5% by mass, still more preferably 0.1% by mass or less, and still more preferably. The liquid detergent composition for hard surface according to any one of <41> to <54>, which is contained in an amount of less than 0.1% by mass.

<56>
The mass ratio of component (a2) / component (a1) is preferably 1 or less, more preferably 0.8 or less, still more preferably 0.6 or less, still more preferably 0.4 or less, and even more preferably 0.2 or less. More preferably, it is 0.1 or less, more preferably less than 0.1, more preferably 0.05 or less, and preferably 0 or more, or 0, any one of the above <41> to <55> The liquid detergent composition for hard surfaces described in 1.

<57>
The mass ratio of component (a1) / component (I) is preferably 0.1 or more, more preferably 0.3 or more, and preferably 0.9 or less, more preferably 0.7 or less. 41>-<56> The liquid detergent composition for hard surfaces according to any one of the above.

<58>
The component (b) is preferably 0.25% by mass or more, more preferably 0.5% by mass or more, further preferably 1% by mass or more, and preferably 8% by mass or less, more preferably 6% by mass or less. More preferably, the liquid detergent composition for hard surfaces according to any one of <48> to <57>, which is contained in an amount of 4% by mass or less.

<59>
Sulfobetaine is preferably 0.25% by mass or more, more preferably 0.5% by mass or more, further preferably 1% by mass or more, and preferably 8% by mass or less, more preferably 6% by mass or less, still more preferably. The hard surface liquid detergent composition according to any one of <49> to <58>, wherein the composition is contained in an amount of 4% by mass or less.

<60>
(A) component and (b) component are contained, and the mass ratio of (a) component / (b) component exceeds 0, Preferably it is 0.1 or more, More preferably, it is 0.2 or more, More preferably 0.3 or more, more preferably 0.5 or more, still more preferably 0.7 or more, and preferably 10 or less, more preferably 8 or less, still more preferably 6 or less, still more preferably 4 or less, still more preferably. The hard surface liquid detergent composition according to any one of <48> to <59>, which is 3 or less.

<61>
The mass ratio of component (b) / component (I) is preferably 0.1 or more, more preferably 0.3 or more, and preferably 0.9 or less, more preferably 0.7 or less. 48. The liquid detergent composition for hard surface according to any one of 48> to <60>.

<62>
The hard surface according to any one of the above <40> to <61>, wherein the component (II) is one or more compounds selected from aminocarboxylic acids, hydroxycarboxylic acids, hydroxyxyphosphonic acids, and salts thereof Liquid detergent composition.

<63>
Aminocarboxylic acids and salts thereof are ethylenediaminetetraacetic acid (EDTA), nitrilotriacetic acid (NTA), iminodiacetic acid, diethylenetriaminepentaacetic acid (DPTA), N-hydroxyethyl-ethylenediaminetriacetic acid (HEDTA), methylglycine diacetic acid ( The liquid detergent composition for hard surfaces according to <62>, which is one or more selected from MGDA), aspartic acid diacetic acid (ASDA), glutamic acid diacetic acid (GLDA), and salts thereof.

<64>
<62> or <63>, wherein the hydroxycarboxylic acid and salt thereof are compounds selected from aliphatic hydroxycarboxylic acid and salts thereof, and further are compounds selected from malic acid, citric acid and salts thereof. A liquid detergent composition for hard surfaces.

<65>
The component (II) contains hydroxycarboxylic acid and a salt thereof, further aliphatic hydroxycarboxylic acid and a salt thereof, further citric acid and a salt thereof, and further a citrate salt, and any one of the above <40> to <64> The liquid detergent composition for hard surfaces as described.

<66>
The component (II) is 1% by mass or more, preferably 1.5% by mass or more, more preferably 1.8% by mass or more, still more preferably 2% by mass or more, and preferably 18% by mass or less, more preferably Any one of the above <40> to <65>, containing 15% by mass or less, more preferably 12% by mass or less, further preferably 10% by mass or less, more preferably 8% by mass or less, and further preferably 5% by mass or less. A liquid detergent composition for hard surfaces according to claim 1.

<67>
The mass ratio of component (II) / component (I) is 0.25 or more, preferably 0.30 or more, more preferably 0.35 or more, more preferably 0.40 or more, more preferably 0.50 or more, More preferably 0.60 or more, and preferably 5.0 or less, more preferably 4.0 or less, still more preferably 3.0 or less, still more preferably 2.0 or less, still more preferably 1.5 or less, further The hard surface liquid detergent composition according to any one of <40> to <66>, preferably 1.0 or less, more preferably 0.90 or less, and even more preferably 0.70 or less.

<68>
(A) component and (b) component are contained, and (II) component / (I) component mass ratio is 0.25 or more, Preferably it is 0.30 or more, More preferably, it is 0.35 or more, More preferably Is 0.40 or more, more preferably 0.50 or more, further preferably 0.60 or more, and preferably 5.0 or less, more preferably 4.0 or less, still more preferably 3.0 or less, still more preferably The hard surface liquid cleaning according to any one of <48> to <67>, which is 2.0 or less, more preferably 1.5 or less, further preferably 1.0 or less, and further preferably 0.90 or less. Agent composition.

<69>
Electrical conductivity (stock solution, 25 ° C., S / m) is 0.70 or more, preferably 0.80 or more, more preferably 1.0 or more, still more preferably 1.2 or more, still more preferably 1.4 or more. More preferably 1.6 or more, and preferably 10 or less, more preferably 9.0 or less, still more preferably 8.0 or less, still more preferably 7.0 or less, still more preferably 6.0 or less, still more preferably. The liquid detergent composition for hard surfaces according to any one of the above <40> to <68>, wherein is 5.5 or less.

<70>
The liquid detergent composition for hard surfaces according to any one of the above <40> to <69>, which contains a solvent [hereinafter referred to as component (III)].

<71>
The component (III) is preferably a water-soluble organic solvent having 2 or more carbon atoms, more preferably 3 or more carbon atoms, preferably 10 or less carbon atoms, more preferably 8 or less carbon atoms, ethanol, isopropyl alcohol, Ethylene glycol, propylene glycol, diethylene glycol, dipropylene glycol, glycerin, isoprene glycol, propylene glycol monomethyl ether, propylene glycol monoethyl ether, 3-methyl-3-methoxybutanol, phenoxyethanol, phenyl glycol, phenoxyisopropanol, butyl diglycol, dibuty The liquid detergent composition for hard surfaces according to <70>, which is a water-soluble organic solvent selected from range glycol and benzyl alcohol.

<72>
The component (III) is preferably 0.5% by mass or more, more preferably 2% by mass or more, still more preferably 4% by mass or more, and preferably 30% by mass or less, more preferably 20% by mass or less, still more preferably. Is 10% by mass or less, The hard surface liquid detergent composition according to <70> or <71>.

<73>
The mass ratio of component (III) / component (I) is preferably 0.5 or more, more preferably 1 or more, still more preferably 1.2 or more, still more preferably 1.5 or more, and preferably 5 or less. The liquid detergent composition for hard surfaces according to any one of <70> to <72>, more preferably 4 or less, still more preferably 3 or less, and still more preferably 2.5 or less.

<74>
The solid content is 2% by mass or more, preferably 3% by mass or more, more preferably 4% by mass or more, and preferably 60% by mass or less, more preferably 50% by mass or less, and further preferably 45% by mass. Or less, more preferably 40% by mass or less, still more preferably 35% by mass or less, still more preferably 30% by mass or less, still more preferably 25% by mass or less, and still more preferably 20% by mass or less, <40>-<73> The liquid detergent composition for hard surfaces according to any one of items.

<75>
The liquid detergent composition for hard surface according to any one of the above <40> to <74>, which is used for cleaning a hard surface without dilution, and further used by directly contacting the hard surface without dilution.

<76>
For a hard surface according to any one of <40> to <75>, which is for a hard surface of a hard article, further for a hard surface of tableware or a hard article around a kitchen, further for tableware, and further for a hard surface of tableware. Liquid detergent composition.

<77>
The pH at 25 ° C. of the composition is preferably 4 or more, more preferably 5 or more, still more preferably 5.5 or more, and preferably 10 or less, preferably 9 or less, more preferably 8 or less, still more preferably The liquid detergent composition for hard surfaces according to any one of <40> to <76>, which is 7 or less.

<78>
(I) Surfactant (hereinafter referred to as “component (I)”) 1% by mass or more, (II) Chelating agent (hereinafter referred to as “component (II)”) 1% by mass or more, and water, (A) contains an anionic surfactant (hereinafter referred to as component (a)), the mass ratio of component (II) / component (I) is 0.25 or more, and the electrical conductivity at 25 ° C. is 0.70S. / M or more of the composition as a liquid detergent for hard surfaces and further as a liquid detergent for tableware.

<79>
Use of the composition according to any one of <40> to <77> as a liquid detergent for hard surfaces and further as a liquid detergent for tableware.
Example

Using the following blending components, the hard surface liquid detergent composition shown in Table 1 was prepared, and the following items were evaluated. The results are shown in Table 1.
The hard surface liquid detergent composition shown in Table 1 was prepared by a conventional method. That is, after adding (I) component (II) component and (II) component and butyl diglycol to the appropriate amount of ion-exchanged water and dissolving at room temperature (25 ° C.), sodium hydroxide and / or hydrochloric acid After adjusting pH (25 degreeC) to the value shown in Table 1, the (a1) component was mix | blended and stirred and the prescription was prepared. In addition, all the mass% of the mixing | blending component in Table 1 is a numerical value based on an effective part. (A) The component has shown the mass% based on a sodium salt.

<Composition ingredients>
Component (a) Component (a1) Component Sodium di-2-ethylhexyl sulfosuccinate (product name “Airol CT-1L”, manufactured by Toho Chemical Industry Co., Ltd.) In general formula (a1), R ^1a , R ^2a : 2 -Ethylhexyl group, x, y: both 0, M ¹ : sodium compound

Component (a2): EO2 lauryl sulfate sodium salt: In general formula (a2), R ^11a is a dodecyl group, R ^12a is an ethylene group, n is 2, and M ² is sodium. a2) a compound wherein R ^11a is a dodecyl group, n is 0, and M ² is sodium

Component (b): Lauryl hydroxysulfobetaine: N-dodecyl-N, N-dimethyl-N- (2-hydroxysulfopropyl) ammonium sulfobetaine (product name “Amphitol 20HD”, manufactured by Kao Corporation)

(II) component / sodium citrate: “Purified citric acid (anhydrous)” manufactured by Fuso Chemical Industry Co., Ltd. was blended into the composition, and the 48 By adjusting the pH to 6, a part of the citric acid was converted to a sodium salt.
・ Citric acid: Product name “Purified citric acid (anhydrous)”, Fuso Chemical Industry Co., Ltd. ・ Ethylenediaminetetraacetic acid sodium salt: Product name “KK-07”, Chubu Kyrest Co., Ltd. Name “Trilon M Powder”, manufactured by BASF SE, 1-hydroxyethylidene-1,1-diphosphonic acid sodium salt: Product name “Diquest 2010CS”, manufactured by Ital Match Japan Co., Ltd.

(III) Component / Butyl Diglycol: Product name “BDG-NS”, manufactured by Nippon Emulsifier Co.

(1) Detergency (solution immersion evaluation)
What mixed beef tallow and rapeseed oil by the mass ratio of 9: 1 was produced, and it was set as model dirt (model dirt of oil dirt containing solid fat, and so on). The mass of a 30 mm (horizontal) × 80 mm (vertical) × 1 mm (thickness) polypropylene test piece was measured with a 4-digit balance (x). A model soil was applied to both sides of the polypropylene test piece to a height of 50 mm from the lower end so that the both sides were uniformly applied to 0.02 to 0.03 g to prepare a dirty piece. The mass of the dirty piece was measured with a 4-digit balance (y).

50 g of the liquid detergent composition for hard surface was placed in a 50 mL container (columnar shape with an inner diameter of 35 mm × height of 68 mm), and then one piece of dirt was stood in the container and brought into contact with the composition. At this time, the part of the dirt piece to which the dirt was attached was all immersed in the composition in the container.

After the dirt piece was immersed in the liquid detergent composition for hard surfaces in the container for the time shown in Table 1, the dirt piece was taken out and rinsed with tap water for 1 minute. At this time, the conditions of rinsing with running water were: the temperature of tap water was 25 ° C., the flow rate was about 4 L / min, and the diameter of the opening of the faucet was about 15 mm. Hold the dirt piece at 45 ° against tap water falling on the dirt piece located 5cm vertically from the opening, and at the upper end where the dirt is not adhered to the dirt piece with the angle fixed Received running water and rinsed the entire cleaning part with tap water flowing over the dirty piece. At this time, the front and back sides were changed every 10 seconds. After completion of rinsing, the soil piece was dried, and the mass was measured with a 4-digit balance (z). The cleaning rate was determined by the following formula.
Cleaning rate (%) = {(y) − (z)} / {(y) − (x)} × 100

(2) Detergency (foam immersion evaluation)
What mixed beef tallow and rapeseed oil by the mass ratio of 9: 1 was produced, and it was set as the model dirt. The mass of a 30 mm (horizontal) × 80 mm (vertical) × 1 mm (thickness) polypropylene test piece was measured with a 4-digit balance (x). A model soil was applied to both sides of the polypropylene test piece to a height of 5 cm from the lower end so as to be 0.02 to 0.03 g in total on both sides to prepare a dirty piece. The mass of the dirty piece was measured with a 4-digit balance (y).

Fill the liquid detergent composition for hard surface into a trigger type spray container (Magiclin Handy Spray, Kao Co., Ltd.), and foam the composition into a 50 mL container (inner diameter 35 mm x height 68 mm column) Was sprayed 5 times. The total discharge amount of the composition was about 5 g.

Next, one piece of dirt was stood in the container, and the dirt piece was brought into contact with the foamy liquid detergent composition for hard surface in the container. At this time, the part of the dirt piece to which the dirt was adhered was all immersed in the foamy composition in the container. After immersing the dirt piece in the foam, it was left for the time shown in Table 1, and then the dirt piece was taken out and rinsed with tap water for 1 minute. At this time, the conditions of rinsing with running water were: the temperature of tap water was 25 ° C., the flow rate was about 4 L / min, and the diameter of the opening of the faucet was about 15 mm. Hold the dirt piece at 45 ° against tap water falling on the dirt piece located 5cm vertically from the opening, and at the upper end where the dirt is not adhered to the dirt piece with the angle fixed Received running water and rinsed the entire cleaning part with tap water flowing over the dirty piece. At this time, the front and back sides were changed every 10 seconds. After completion of rinsing, the soil piece was dried, and the mass was measured with a 4-digit balance (z). The cleaning rate was determined by the following formula.
Cleaning rate (%) = {(y) − (z)} / {(y) − (x)} × 100

(3) Electric conductivity Using an electric conductivity meter (CM-30R type) manufactured by TOA DK Corporation, the electric conductivity was measured (25 ° C.) according to the measuring method described in the instruction manual of this device.

As for the compounding quantity of Table 1, (a) component is a sodium salt conversion value, (II) component is an acid conversion value.
The detergency of Examples 1 and 3 is the average of two measurements.

<Prescription example>
Table 2 shows the hard surface liquid detergent composition of the present invention.

In Table 2, a part of the component (b) and the component (c) are as follows, and the other components are the same as those used in Table 1.

(B) Ingredient Carbobetaine: Product name “Amphithol 20AB”, manufactured by Kao Corporation • Amine oxide: Product name “Amphithol 20N”, manufactured by Kao Corporation (c) Ingredient • 2-ethylhexylglyceryl ether: Penetor GE-EH ", manufactured by Kao Corporation

Claims (16)

1. (I) Surfactant (hereinafter referred to as “component (I)”) 1% by mass or more, (II) Chelating agent (hereinafter referred to as “component (II)”) 1% by mass or more, and water, (A) contains an anionic surfactant (hereinafter referred to as component (a)), the mass ratio of component (II) / component (I) is 0.25 or more, and the electrical conductivity at 25 ° C. is 0.70S. A dish cleaning method, wherein a liquid detergent composition for tableware that is equal to or greater than / m is brought into contact with a tableware to which oily soil containing solid fat is adhered, and cleaning is performed without applying mechanical force.
2. The cleaning method according to claim 1, wherein the component (II) is one or more compounds selected from aminocarboxylic acids, hydroxycarboxylic acids, hydroxyxyphosphonic acids, and salts thereof.
3. The cleaning method according to claim 1 or 2, wherein the liquid detergent composition for tableware contains (a) component in an amount of 0.25 mass% to 10 mass%.
4. (A) component is (a1) a sulfosuccinic acid ester represented by the following general formula (a1) or a salt thereof (hereinafter referred to as (a1) component), and (a2) a hydrocarbon group having 8 to 21 carbon atoms An anionic surfactant having a sulfate ester group or a sulfonic acid group (excluding the component (a1)) (hereinafter referred to as the component (a2)), which is one or more selected from the group consisting of The cleaning method according to any one of the above.
   

   

   [In formula, R < ^1a >, R < ^2a > is respectively independently a C5-C18 hydrocarbon group. A ¹ and A ² are each independently an alkylene group having 2 or more and 4 or less carbon atoms, and x and y are average added mole numbers, and are each independently 0 or more and 6 or less. M ¹ is a hydrogen atom or a cation. ]
5. The cleaning method according to claim 4, wherein a mass ratio of the component (a2) / the component (a1) in the liquid detergent composition for tableware is 1 or less.
6. The cleaning method according to any one of claims 1 to 5, wherein the liquid detergent composition for tableware contains (b) an amphoteric surfactant (hereinafter referred to as component (b)) as component (I).
7. The cleaning method according to claim 6, wherein the liquid detergent composition for tableware contains (b) component in an amount of 0.25 mass% to 8 mass%.
8. The cleaning method according to claim 6 or 7, wherein a mass ratio of the component (a) / component (b) in the liquid detergent composition for tableware is 10 or less.
9. The cleaning method according to any one of claims 6 to 8, wherein the amphoteric surfactant contains sulfobetaine.
10. The cleaning method according to any one of claims 1 to 9, wherein the liquid detergent composition for tableware is brought into contact with tableware to which oily soil containing solid fat has adhered without being diluted.
11. The cleaning method according to any one of claims 1 to 10, wherein the tableware liquid detergent composition and the tableware are contacted for 10 seconds or more.
12. (I) Surfactant (hereinafter referred to as “component (I)”) 1% by mass or more, (II) Chelating agent (hereinafter referred to as “component (II)”) 1% by mass or more, and water, (A) contains an anionic surfactant (hereinafter referred to as component (a)), the mass ratio of component (II) / component (I) is 0.25 or more, and the electrical conductivity at 25 ° C. is 0.70S. / M or more liquid detergent composition for tableware.
13. (A) component is (a1) a sulfosuccinic acid ester represented by the following general formula (a1) or a salt thereof (hereinafter referred to as (a1) component), and (a2) a hydrocarbon group having 8 to 21 carbon atoms The anionic surfactant having a sulfate ester group or a sulfonic acid group [provided that the component (a1) is excluded] [hereinafter referred to as the component (a2)] is one or more selected from the group consisting of: Dishwashing detergent composition.
    

    

    [In formula, R < ^1a >, R < ^2a > is respectively independently a C5-C18 hydrocarbon group. A ¹ and A ² are each independently an alkylene group having 2 or more and 4 or less carbon atoms, and x and y are average added mole numbers, and are each independently 0 or more and 6 or less. M ¹ is a hydrogen atom or a cation. ]
14. The detergent composition for tableware of Claim 13 whose mass ratio of (a2) component / (a1) component is 1 or less.
15. The dishwashing detergent composition according to any one of claims 12 to 14, comprising (b) an amphoteric surfactant (hereinafter referred to as component (b)) as component (I).
16. The detergent composition for tableware of Claim 15 whose mass ratio of (a) component / (b) component is 10 or less.