JP6707294B2 - How to clean hard surfaces - Google Patents

Description

The present invention relates to a method for cleaning a hard surface, and a liquid detergent composition for a hard surface.

Dishwashing agents for hand washing are strongly required to have a detergency for oil stains. In particular, in tableware having a hydrophobic surface such as plastic tappers and lunch boxes, oil stains containing a large amount of solid fat such as beef tallow and lard are difficult to remove, and high detergency is required. Therefore, usually, a cleaning method that uses devise such as using hot water at about 40° C. to 45° C. or washing twice is used.

Patent Document 1 contains the following (a) to (c), and the total amount of the surfactants including (a) and (b) is 3 to 20% by mass, and the mass ratio (a):(b). Is a 2 to 20:1 liquid detergent composition converted into droplets or bubbles and filled in a container to be discharged. It is described that an excellent detergency is exerted by adhering the stain so that it is covered with droplets or bubbles.
(A) Anionic surfactant (b) Semipolar surfactant (c) Ethanol 0.1-20% by mass
Patent Document 2 discloses (a) an alkyl sulfosuccinate or a salt thereof, (b) an alkyl sulfate or a salt thereof, and (c) a hydroxycarboxylic acid, an aminopolycarboxylic acid, and one or more kinds selected from these salts. A dishwashing composition for hand-washing containing 2 to 8% by mass of the compound exhibits excellent detergency against stains around the sink, rich foaming during cleaning, and long-lasting foaming during cleaning, but rinsing. It is stated that sometimes the bubbles disappear instantly and the rinse is completed with a small amount of water.

JP, 2004-217908, A JP, 2013-82846, A

TECHNICAL FIELD The present invention relates to a liquid detergent composition for hard surfaces, which is excellent in detergency of oil stains containing solid fat adhering to a hard surface, and a method for cleaning hard surfaces using the same.

The present invention contains (I) a surfactant [hereinafter referred to as (I) component] 1% by mass or more, a (II) chelating agent [hereinafter referred to as (II) component] 1% by mass and water, and ( It contains (a) anionic surfactant [hereinafter referred to as (a) component] as the I component, has a mass ratio of (II) component/(I) component of 0.25 or more, and has electrical conductivity at 25°C. Relates to a method for cleaning a hard surface, in which a liquid detergent composition for hard surfaces having a viscosity of 0.70 S/m or more is brought into contact with a hard surface to which oil stains containing solid fat are attached, and cleaning is performed without applying mechanical force.

Further, the present invention contains (I) a surfactant [hereinafter, referred to as (I) component] 1 mass% or more, a (II) chelating agent [hereinafter, referred to as (II) component] 1 mass% or more, and water. , (A) anionic surfactant [hereinafter referred to as (a) component] as component (I), the mass ratio of (II) component/(I) component is 0.25 or more, and electricity at 25° C. The present invention relates to a liquid detergent composition for hard surfaces, which has a conductivity of 0.70 S/m or more.

ADVANTAGE OF THE INVENTION According to this invention, the oil stain containing solid fat adhered to the article which has hard surfaces, such as plastic, is wash|cleaned, without using a flexible material, such as a sponge, ie, without applying mechanical force. It is possible to provide a method for cleaning a hard surface and a liquid detergent composition for a hard surface, which are capable of cleaning and have excellent cleaning power.

[How to clean hard surfaces]
The method for cleaning a hard surface of the present invention contains a surfactant [(I) component] 1% by mass or more containing an anionic surfactant, a chelating agent [(II) component] 1% by mass or more, and water ( II) component/(I) component mass ratio is 0.25 or more, and the electrical conductivity at 25° C. is 0.70 S/m or more. It is a method of washing dishes in which the dishes are brought into contact with each other and washed without applying mechanical force.
In the present invention, since the content and mass ratio of the surfactant containing the anionic surfactant and the chelating agent, and the electric conductivity of the composition are defined, the cleaning ability of the surfactant is improved, and the composition is used in the present invention. Surfactant contained in the liquid detergent composition for hard surface, it becomes easier to penetrate into oil stains containing solid fat, the solid fat is easily peeled from the hard surface, as a result, the effect of improving the cleaning power It is estimated that it was obtained.
Then, in the cleaning method of the present invention, when the composition is used in a method of directly contacting a hard surface, the concentration of the surfactant applied to the hard surface is a hard surface using a water-containing sponge. Since the effect is higher than that in the case of contact, the effect is more remarkably exhibited.
From these things, the cleaning method of the present invention is a cleaning method that does not rub oily stains containing solid fat adhered to a hard surface such as plastic using a flexible material such as sponge, that is, without applying mechanical force. Excellent cleaning power can also be obtained by the method.

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

<Component (a)>
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 having a sulfate ester group or a sulfonic acid group [excluding the component (a1)] [hereinafter referred to as the component (a2)] are preferable. ..

[In the formula, R ^1a and R ^2a are each independently a hydrocarbon group having 5 to 18 carbon atoms. 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 number of moles added, and 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 the formula, R ^1a and R ^2a are each independently a hydrocarbon group having 5 to 18 carbon atoms. 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 number of moles added, and each independently 0 or more and 6 or less. M ¹ is a hydrogen atom or a cation. ]

In formula (a1), R ^1a and R ^2a each independently have 5 or more carbon atoms, preferably 6 or more carbon atoms, more preferably 7 or more carbon atoms, and 18 or less carbon atoms, preferably 16 or less carbon atoms, more preferably 14 carbon atoms or less. It is the following hydrocarbon group. The hydrocarbon group is preferably a branched chain hydrocarbon group. R ^1a and R ^2a are each independently preferably a straight chain or branched chain alkyl group, and more preferably a branched chain alkyl group.
In 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.
In the general formula (a1), x and y are average addition mole numbers, and independently from the viewpoint of detergency, 0 or more and 6 or less, preferably 4 or less, more preferably 2 or less, It is more preferably 0.
From the viewpoint of detergency, x+y is preferably 0 or more, and preferably 12 or less, more preferably 6 or less, still more preferably 3 or less, and even more preferably 0.

In formula (a1), R ^1a and R ^2a are preferably each a hexyl group, an octyl group, a nonyl group, a decyl group, a dodecyl group, a tridecyl group, a tetradecyl group, a 2-ethylhexyl group, an n-octyl group, and sec. -Octyl group, isopentyl group, isononyl group, isodecyl group, alkyl group selected from cyclohexyl group, more preferably selected from n-octyl group, sec-octyl group, decyl group, isodecyl group, and 2-ethylhexyl group It is an alkyl group, more preferably an alkyl group selected from a 2-ethylhexyl group and a tridecyl group, and even 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 monoethanol ammonium ion, diethanol ammonium ion, triethanol ammonium 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, but for example, refer to the method described in US Pat. No. 2,028,091. The asymmetric compound having different R ^1a and R ^2a can be produced by referring to, for example, JP-A-58-24555. When a commercially available compound is used, Perox OT-P manufactured by Kao Corporation (a compound in which R ^1a and R ^2a are both 2-ethylhexyl groups) and Perex TR (R ^1a and R ^2a are both tridecyl groups). Compound), BASF LuensitA-BO (compound in which R ^1a and R ^2a are both 2-ethylhexyl groups), Toho Chemical Industry Co., Ltd. air roll CT-1L (R ^1a and R ^2a are both 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 (R ^1a and R ^{2a in} which R ^1a and R ^2a are both cyclohexyl groups) that were available from Mitsui Cytec Co., Ltd. Compound) etc. can be used. As the raw material for the component (a1), an alcohol having a predetermined number of carbon atoms to which an alkylene oxide is added can be used.

<(a2) component>
The component (a2) used in the present invention is an anionic surfactant having a hydrocarbon group having 8 or more and 21 or less carbon atoms and a sulfate ester group or a sulfonic acid group (provided that the component (a1) is excluded).

From the viewpoint of detergency, the hydrocarbon group as the component (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, and further preferably Is 12 or less. The hydrocarbon group as the component (a2) is preferably an alkyl group or an aryl group.

The anionic surfactant as the component (a2) is preferably one or more selected from alkyl sulfate ester salts, polyoxyalkylene alkyl ether sulfate salts and alkane sulfonate salts.

From the viewpoint of detergency, the anionic surfactant having a sulfate ester group 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, further preferably 12 or less. The alkyl sulfate ester salt having a linear or branched alkyl group of is preferable.
Further, as the anionic surfactant having a sulfate ester group and a polyoxyalkylene group, from the viewpoint of detergency, the number of carbon atoms is 8 or more, preferably 10 or more, and 21 or less, preferably 18 or less, more preferably It has a straight chain or branched chain alkyl group of 14 or less, more preferably 12 or less, and the average number of added moles of the oxyalkylene group having 2 or more and 3 or less carbon atoms is preferably 0.1 or more, more preferably 0.3. The polyoxyalkylene alkyl ether sulfuric acid ester salt having a polyoxyalkylene group having a polyoxyalkylene group of not less than, more preferably not less than 0.4, and preferably not more than 6, more preferably not more than 3, and still more preferably not more than 1.5 is suitable. ..
Further, 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 10 or more carbon atoms, and 21 or less, preferably 18 or less carbon atoms, more preferably 14 or less carbon atoms. Preferably, one or more anionic surfactants selected from 12 or less alkane sulfonates are suitable.

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

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)
[In the formula, R ^11a is a linear or branched alkyl group having 8 or more and 21 or less carbon atoms, R ^12a is an ethylene group and/or a propylene group, and n is an average addition mole number and is 0 or more. It is a number of 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, further preferably 12 or less, from the viewpoint of detergency. It is 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 the 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. 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.
Further, in the general formula (a2), when R ^12a is a propylene group, n is preferably 0.1 or more, more preferably 0.2 or more, and still more preferably 0.4 or more, from the viewpoint of detergency. , And preferably 1.5 or less, more preferably 1.0 or less, still more preferably 0.8 or less.
Further, in the general formula (a2), when R ^12a is an ethylene group or a propylene group, n can be selected from these ranges, respectively.

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

The method for preparing the compound of the general formula (a2) is not particularly limited, but, for example, after adding a predetermined amount of ethylene oxide and/or propylene oxide to a fatty alcohol represented by R ^11a —OH according to the purpose. , Sulfur trioxide (liquid or gas), sulfur trioxide-containing gas, fuming sulfuric acid, chlorsulfonic acid, a sulfuric acid esterification with a sulfating agent, and neutralized with a predetermined alkaline agent. A catalyst is required for the addition reaction of ethylene oxide (hereinafter referred to as EO) and/or propylene oxide (hereinafter referred to as PO), and an alkali hydroxide such as NaOH or KOH can be used. Further, the catalyst containing magnesium oxide as a main component described in JP-A-8-323200 can be used, and the former can obtain polyoxyethylene alkyl ether having a relatively wide addition mole number distribution, and the latter can be compared. A compound having an extremely narrow distribution of the number of added moles can be obtained. It is also possible to control the distribution of the number of added moles by using an alkali catalyst and a metal oxide catalyst together as disclosed in JP-A-10-158384.

In the general formula (a2), when R ^11a is a compound containing a branched chain alkyl group, 1-alkene having 8 to 14 carbon atoms is hydroformylated as an alcohol represented by R ^11a —OH which is a raw material. The resulting alcohol (containing 15 mol% or more and 70 mol% or less of an alkyl group having a branched methyl group at the β-position relative to the OH group) and an aldehyde having 4 to 8 carbon atoms are condensed and then reduced. 3 obtained by hydroformylating a dimer of isobutene, which is a Guerbet-type alcohol (containing 100 mol% of a structure in which an alkyl group having 3 to 6 carbon atoms is branched at the β-position to the OH group) ,5,5-Trimethylhexanol, multi-branched tridecanol obtained by hydroformylating a trimer of isobutene (branching rate is 100 mol%), petroleum, synthetic alcohol made from coal (branching rate is about 20 mol% The above is an alkyl group of 100 mol% or less).

In the present invention, as the component (a2), a compound represented by the general formula (a2), wherein R ^11a has preferably 8 or more carbon atoms, more preferably 10 or more carbon atoms, and preferably 18 or less carbon atoms, more preferably Contains 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, still more preferably 0.8 or less is preferable.

Examples of other anionic surfactants include fatty acids having 10 to 14 carbon atoms or salts thereof.

<Component (b)>
The liquid detergent composition for hard surfaces used in the present invention preferably contains the amphoteric surfactant as the component (b) as the component (I). Examples of the amphoteric surfactant include at least one amphoteric surfactant 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 preferable.

[In the formula, R ^1b represents a hydrocarbon group having 8 or more and 22 or less carbon atoms, preferably an alkyl group or an alkenyl group, more preferably an alkyl group, and R ^2b and R ^3b are the same or different and each have 1 or more carbon atoms. 3 or less alkyl groups are shown. D represents a -NHC(=O)- group or a -C(=O)NH- group, and E represents an alkylene group having 1 to 5 carbon atoms. m and p indicate 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 or more and 18 or less carbon atoms, more preferably an alkyl group having 12 or more and 16 or less carbon atoms, from the viewpoint of detergency against solid fat. An alkyl group having 12 to 14 carbon atoms is more preferable, and an alkyl group having 12 carbon atoms is still more preferable. From the viewpoint of detergency for solid fat, R ^2b and R ^3b are preferably methyl groups having 1 carbon atom.

As sulfobetaine, the number of carbon atoms of the alkyl group is preferably 10 or more, preferably 18 or less, more preferably 14 or less, N-alkyl-N,N-dimethyl-N-sulfopropylammonium sulfobetaine, the number of carbon atoms of the 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, and the alkanoyl group preferably has 10 or more carbon atoms. , Preferably 18 or less, more preferably 14 or less N-alkanoylaminopropyl-N,N-dimethyl-N-sulfopropylammonium sulfobetaine, the alkanoyl group preferably has 10 or more carbon atoms, preferably 18 or less carbon atoms. Is 14 or less N-alkanoylaminopropyl-N,N-dimethyl-N-(2-hydroxysulfopropyl)ammonium sulfobetaine.

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

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

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

<(c) Nonionic surfactant>
The liquid detergent composition for hard surfaces used in the present invention can contain the nonionic surfactant of the component (c) as the component (I).
As the nonionic surfactant, (c1) a glyceryl ether having an alkyl group having 6 or more and 18 or less carbon atoms [hereinafter, referred to as (c1) component] and (c2) a compound represented by the following general formula (c2) [hereinafter, The component (c2) is referred to as one or more nonionic surfactants. 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 rinsability.
^R2cO- (EO) _z- H(c2)
[In the formula, R ^2c is a linear and/or branched alkyl group having 6 or more and 18 or less carbon atoms, EO is an ethyleneoxy group, z represents the average number of moles of EO added, and is more than 0 to 100. The following numbers. ]

As the component (c1), a compound represented by the following general formula (c1) is preferable.
^R1c- O-(Gly) _r- H (c1)
[In the formula, R ^1c represents an alkyl group having 6 or more and 18 or less carbon atoms, Gly represents a glycerin-derived constitutional unit, preferably a residue obtained by removing one hydroxyl group and one hydrogen atom from glycerin, r represents a number of 1 or more and 4 or less. ]

In the general formula (c1), R ^1c preferably has 6 or more carbon atoms, more preferably 7 or more carbon atoms, further 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 straight chain alkyl group and a branched chain alkyl group. Examples of the linear alkyl group include linear alkyl groups such as hexyl group, heptyl group, octyl group, nonyl group and decyl group. In the present invention, a branched chain alkyl group is preferable from the viewpoint of detergency. As the branched chain alkyl group, a group selected from a 2-ethylhexyl group, a sec-octyl group, an isononyl group and an isodecyl group is preferable, a 2-ethylhexyl group or an isodecyl group is more preferable, and a 2-ethylhexyl group is still more preferable.
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. A more preferable compound is a compound 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 3-position of glycerin are bonded, or the 1-position of glycerin. It has 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 the alcohol having 6 to 10 carbon atoms, an epoxy compound such as epihalohydrin or glycidol, and an acid catalyst such as BF ₃ , Alternatively, a method of producing by reacting with an aluminum catalyst can be used.
For example, when 2-ethylhexanol is used, the resulting 2-ethylhexyl monoglyceryl ether is a mixture that can contain a plurality of products as described in JP 2001-49291 A.

The component (c2) is a compound represented by the following general formula (c2).
^R2cO- (EO) _z- H(c2)
[In the formula, R ^2c is a branched chain alkyl group having 6 to 18 carbon atoms, EO is an ethyleneoxy group, z represents the average number of moles of EO added, 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, further preferably 12 or more, and 18 or less, preferably 14 from the viewpoint of detergency. It is below.
R ^2c in the 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 a 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 chain 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. , Preferably 50 or less, more preferably 30 or less, still more preferably 20 or less, even more preferably 12 or less, still more preferably 10 or less.
The compound of general formula (c2) may be further added with propylene oxide as long as the effect of the present invention is not impaired.

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

<Content of component (I)>
The liquid detergent composition for hard surfaces used in the present invention contains the component (I) in an amount of 1% by mass or more, preferably 2% by mass or more, more preferably 3% by mass or more, further preferably 4 from the viewpoint of detergency. From the viewpoint of reduction of 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, still more preferably 10% by mass or less. Is 8 mass% or less, more preferably 6 mass% or less.

The liquid detergent composition for hard surfaces used in the present invention contains the component (a) from the viewpoint of detergency, preferably 0.25% by mass or more, more preferably 0.5% by mass or more, and further preferably 1% by mass. % Or more, more preferably 2% by mass or more, further preferably 4% by mass or more, and preferably 10% by mass or less, more preferably 8% by mass or less, and further preferably from the viewpoint of reduction of raw material cost and dischargeability. 6 mass% or less, more preferably 5 mass% or less.

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

In the liquid detergent composition for hard surfaces used in the present invention, the component (a1) is preferably contained in an amount of 0.25% by mass or more, more preferably 0.5% by mass or more, still more preferably 0.1% 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 viewpoint of reduction of raw material cost and dischargeability. % 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, still more preferably 5% by mass or less.

In the present invention, (a1) description of the mass of the components (wt% or wt ratio) should be based on mass (the ratio of sodium salt equivalent), assuming that sodium M ^1.

In addition, the liquid cleaning composition for hard surfaces used in the present invention contains the component (a2) from the viewpoint of detergency of 0% by mass or more and 3% by mass or less, preferably 2.5% by mass or less. Preferably 2 mass% or less, more preferably 1.5 mass% or less, even more preferably 1 mass% or less, even more preferably less than 1 mass%, even more preferably 0.5 mass% or less, even more preferably The content is less than 0.5% by mass, more preferably 0.1% by mass or less, still more preferably less than 0.1% by mass. The content of the component (a2) may be 0% by mass in the composition.

Further, the liquid detergent composition for hard surface used in the present invention preferably contains 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 value in this case can be selected from the above range.

In the present invention, the description (mass% or mass ratio) relating to the component (a2) is based on the assumption that M ² in the general formula (a2) of the component (a2) is sodium (in terms of sodium salt). Ratio).

Further, in the liquid detergent composition for hard surface used in the present invention, the mass ratio of (a2) component/(a1) component is preferably 1 or less, more preferably 0.8 or less, further from the viewpoint of detergency. Preferably 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, more preferably 0.05 or less, and preferably Is 0 or more, and may be 0.

From the viewpoint of detergency, the liquid cleaning composition for hard surfaces used in the present invention has a mass ratio of component (a1)/component (I) of preferably 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 surfaces used in the present invention, from the viewpoint of detergency, the mass ratio of component (a2)/component (I) is preferably 0 or more, and preferably 0.5 or less, more preferably Is 0.3 or less.

From the viewpoint of detergency, the liquid detergent composition for hard surfaces used in the present invention preferably contains 0.25 mass% or more, more preferably 0.5 mass% or more, still more preferably 1 mass. % Or more, and preferably 8% by mass or less, more preferably 6% by mass or less, and further preferably 4% by mass or less.

The liquid detergent composition for hard surfaces used in the present invention contains sulfobetaine in terms of detergency, preferably 0.25% by mass or more, more preferably 0.5% by mass or more, and further preferably 1% by mass or more. , And preferably 8% by mass or less, more preferably 6% by mass or less, 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 component (a)/component (b) is 0 from the viewpoint of detergency. Exceeding, preferably 0.1 or more, more preferably 0.2 or more, even more preferably 0.3 or more, even more preferably 0.5 or more, even more preferably 0.7 or more, and from the same viewpoint, It is preferably 10 or less, more preferably 8 or less, still more preferably 6 or less, still more preferably 4 or less, still more preferably 3 or less.

From the viewpoint of detergency, the liquid cleaning composition for hard surfaces used in the present invention has a mass ratio of component (b)/component (I) of 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 liquid cleaning composition for hard surfaces used in the present invention has a mass ratio of component (a1)/component (b) of preferably 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 of 0.1% by mass or more, and more preferably Is 0.3% by mass or more, more preferably 0.5% by mass or more, even 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 mass% or less, more preferably 20 mass% or less, still more preferably 15 mass% or less, even more preferably 10 mass% or less, even more preferably 8 mass% or less, even more preferably 5 mass% or less, still more The content is preferably 3% by 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, hydroxychiphosphonic 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), methylglycinediacetic acid. (MGDA), aspartic acid diacetic acid (ASDA), glutamic acid diacetic acid (GLDA), and one or more kinds selected from these salts. The aminocarboxylic acid and its salt are preferably one or more selected from ethylenediamine tetraacetic acid and its salt, methylglycine diacetic acid and its salt, and L-glutamic acid diacetic acid and its salt.
The hydroxycarboxylic acid and its salt are preferably compounds selected from aliphatic hydroxycarboxylic acids and their salts. Examples of the hydroxycarboxylic acid and salts thereof include compounds selected from malic acid, citric acid and salts thereof.
Examples of hydroxychiphosphonic 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, amine salts and the like. The alkali metal salt is preferable, and the sodium salt or potassium salt is more preferable.

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

The liquid detergent composition for hard surfaces used in the present invention contains the component (II) in an amount of 1% by mass or more, preferably 1.5% by mass or more, and more preferably 1.8% by mass or more from the viewpoint of detergency. , More preferably 2% by mass or more, and from the viewpoint of cost reduction and detergency, 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. , More preferably 8 mass% or less, further preferably 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, further preferably 0.50 or more, more preferably 0.60 or more, and preferably 5.0 or less from the viewpoint of reduction of raw material cost and detergency. Preferably 4.0 or less, more preferably 3.0 or less, further preferably 2.0 or less, more preferably 1.5 or less, further preferably 1.0 or less, more preferably 0.90 or less, further preferably It is 0.70 or less.
In particular, when the liquid detergent composition for hard surface used in the present invention contains the component (a) and the component (b), the liquid detergent composition for hard surface used in the present invention is composed of 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, still more preferably 0.40 or more, still more preferably 0.50 or more. , And more preferably 0.60 or more, and from the viewpoint of reducing raw material cost 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, further preferably 1.0 or less, and further preferably 0.90 or less.

[Electrical conductivity]
The liquid detergent composition for hard surfaces used in the present invention has an electric conductivity (or electric conductivity) (undiluted 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 9.0 or less, more preferably 8.0 or less, still more preferably 7.0 or less, further preferably 6.0 or less, further preferably 5.5 or less.
The electrical conductivity can be increased by adding salt or the like.
As long as the electric conductivity is within the above range, the procedure for preparing the liquid detergent composition for hard surfaces used in the present invention is not limited. For example, sodium citrate may be directly added 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, by separately blending trisodium methylglycine diacetate and HCl, the electrical conductivity may be adjusted to be higher while adjusting the pH to neutral. From the viewpoint of mixability of the liquid detergent composition for hard surfaces used in the present invention, a method of adding the component (II) such as citric acid as a salt is preferable.
The method for measuring the electric conductivity is as described in the examples.

[PH]
The liquid detergent composition for hard surfaces 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 enhancing the detergency. It is more preferably 5.5 or more, and from the viewpoint of detergency, preferably 10 or less, preferably 9 or less, more preferably 8 or less, still more preferably 7 or less.

[Other ingredients, etc.]
The liquid detergent composition for hard surfaces used in the present invention may contain components other than the component (I) and the component (II).

<(III) component>
The liquid detergent composition for hard surfaces used in the present invention preferably contains a solvent as the component (III) from the viewpoint of compounding stability. The solvent is preferably a water-soluble organic solvent having preferably 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, and 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 them, 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.

The liquid detergent composition for hard surfaces used in the present invention contains the component (III) in terms of detergency and blending stability, preferably 0.5% by mass or more, more preferably 2% by mass or more, and further preferably 4 mass% or more, and preferably 30 mass% or less, more preferably 20 mass% or less, further preferably 10 mass% or less.

When the liquid detergent composition for hard surfaces used in the present invention contains the component (III), it is the mass ratio of the content of the component (III) and the total content of the component (I), the component (III) 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, still more preferably 2.5 or less.

<(IV) component>
The liquid detergent composition for hard surfaces used in the present invention may contain a hydrotrope agent as the component (IV) from the viewpoint of compounding stability. As the hydrotrope, toluene sulfonic acid, xylene sulfonic acid, cumene sulfonic acid or their sodium, potassium or magnesium salts are preferable, and particularly p-toluene sulfonic acid or its salt is preferable.

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

In addition to these, the liquid detergent composition for hard surfaces used in the present invention is an anti-gelling agent such as polyalkylene glycol, a thickener such as polyacrylic acid, an enzyme, a fragrance, a dye, a pigment, a bactericide, and an antiseptic agent. Ingredients such as agents and pH adjusters can be contained.

In the liquid detergent composition for hard surfaces 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 cost reduction and dischargeability when using a container equipped with 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, still more preferably It is 40% by mass or less, more preferably 35% by mass or less, still more preferably 30% by mass or less, still more preferably 25% by mass or less, still more preferably 20% by 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 surfaces 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 liquid detergent composition for hard surfaces used in the present invention contains water in an amount of 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 , Preferably 99 mass% or less, more preferably 95 mass% or less, still more preferably 90 mass% or less. As the water, it is preferable to use ion-exchanged water, sterile ion-exchanged water, or the like.

The viscosity at 20° C. of the liquid detergent composition for hard surfaces 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, still more preferably 5 mPa·s or less. The viscosity can be adjusted with a solvent or a hydrotrope agent.

<Washing method>
The method for cleaning a hard surface of the present invention is a method for cleaning a hard surface, wherein the liquid detergent composition for hard surface is brought into contact with a hard surface to which an oil stain containing solid fat is attached, and cleaning is performed without applying mechanical force. Is. This method is suitable for cleaning parts that are too hard for the hands or tools to reach or small 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 a hard surface is brought into contact with a hard surface on which an oil stain containing solid fat is attached without dilution.
In the method for cleaning a hard surface of the present invention, the liquid cleaning composition for a hard surface is brought into contact with a hard surface to which an oil stain containing solid fat is attached without diluting, and cleaning can be performed without applying mechanical force. preferable.
In the cleaning method of the present invention, the liquid cleaning composition for hard surfaces may be brought into contact with a hard surface to which oil stains containing solid fat are attached without dilution, and may be left standing for cleaning without applying mechanical force. preferable.
Cleaning a hard surface without applying mechanical force means, for example, that no intentional operation for cleaning other than contact of the composition is performed. For example, it is understood that cleaning the hard surface without applying mechanical force means that the contacted composition naturally flows down the hard surface and that vibrations not intended for cleaning are transmitted to the hard surface.
Without diluting the liquid detergent composition for hard surfaces, it is brought into contact with a hard surface to which oil stains containing solid fat are adhered, which means that the detergent composition is intentionally diluted with water or the like and then solid. This is to prevent contact with a hard surface on which oil stains containing fat are attached. For example, the liquid detergent composition for hard surface is brought into contact with a hard surface to which water droplets and the like are attached, or after the liquid detergent composition for hard surface is brought into contact with a hard surface, water droplets are attached to the hard surface. In that case, it can be understood that the liquid detergent composition for hard surfaces is brought into contact with the hard surface to which the oil stain containing solid fat is attached without diluting.
After leaving, it is usually rinsed with water. When rinsing, you may apply mechanical force (physical force) with your hands, or you may just rinse with a stream of water.
As the cleaning method of the present invention, the liquid cleaning composition for hard surfaces is brought into contact with a hard surface to which oil stains containing solid fat are adhered, and cleaning with a flexible material, cleaning with running water, and ultrasonic cleaning There is a cleaning method in which neither is performed and the film 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 surfaces is brought into contact with a hard surface on which oil stains containing solid fat are adhered, and friction force by a flexible material such as sponge, automatic dishwashing A cleaning method in which a mechanical force is not applied and the apparatus is left as it is without using any hydrodynamic force due to a shower or the like in the machine or vibration due to ultrasonic waves is used.

The oil stain containing solid fat is a stain containing fat and oil, which is solid at room temperature (for example, 20° C.). The oil stain containing solid fat is typically an oil stain containing solid fat, and further an oil stain containing solid fat and liquid oil. The form of oil stains containing solid fat when the liquid detergent composition for hard surfaces is contacted may be a state in which solid fat and liquid oil are mixed.

In the present invention, it is preferable that the undiluted solution of the liquid detergent composition for hard surfaces be applied as it is, that is, without changing the composition, to the hard surface to which the oil stain containing solid fat is attached. For example, it is preferable that the liquid detergent composition for hard surfaces is brought into contact with a hard surface on which oil stains containing solid fat are attached without adhering to a water-containing sponge or the like. After contacting the hard surface, the composition of the liquid detergent composition for hard surface may change. That is, after contacting the hard surface, the composition of the liquid detergent composition for hard surface may be diluted or concentrated.

Further, a concentrated composition containing the component (I) and the component (II) of the present invention is prepared in advance, and the concentrated composition is diluted with water to prepare a liquid detergent composition for hard surface used in the present invention. Alternatively, it may be brought into contact with a hard surface. That is, the concentrated composition containing the components (I) and (II) of the present invention is diluted with water to prepare a liquid detergent composition for hard surfaces used in the present invention, and the liquid detergent composition for hard surfaces is prepared. It may be a method for cleaning a hard surface, in which an object is brought into contact with a hard surface on which oil stains containing solid fat are adhered without being diluted, and cleaning is performed without applying mechanical force.

In the method for cleaning a hard surface of the present invention, the liquid detergent composition for a hard surface is brought into contact with the hard surface and then left without applying (without applying) mechanical force. That is, there is a cleaning method in which a flexible material such as sponge or the like is brought into contact without using a finger or the like and left as it is without applying mechanical force. After leaving, it is usually rinsed with water. When rinsing, you may apply mechanical force (physical force) with your hands, etc., or simply rinse with a stream of water.

In the method for cleaning a hard surface of the present invention, the liquid detergent composition for hard surfaces is preferably 0.1 g or more, more preferably 0.3 g or more, with respect to an area of 100 cm ² of the hard surface that is the object. It is more preferable to contact at a ratio of 0.4 g or more, preferably 5 g or less, more preferably 3 g or less, and further preferably 2 g or less, and it is preferable to further coat or spray.

In the method for cleaning a hard surface of the present invention, from the viewpoint of enhancing the detergency, after contacting the hard surface liquid cleaning composition with the hard surface, preferably 10 seconds or more, more preferably 20 seconds or more, further preferably 30 seconds. As described above, 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, further preferably 20 minutes or less. It is allowed to stand for 5 minutes or less, more preferably 10 minutes or less, still more preferably 5 minutes or less. In this case, the time when the composition first contacts the hard surface may be the start of standing.
The temperature at which it is left standing is room temperature, for example, 10°C or higher and 30°C or lower.

Further, in the method for cleaning a hard surface of the present invention, from the viewpoint of enhancing the cleaning power, preferably 10 seconds or more, more preferably 20 seconds or more, further preferably 30 seconds or more, even more preferably 40 seconds or more, 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, still more preferably 10 minutes or less, still more The hard surface liquid detergent composition is preferably 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 of the present invention, the hard surface to which oil stains containing solid fat are adhered may be contacted by immersing it in the liquid cleaning composition for a hard surface, but the cleaning power is effectively increased. From the viewpoint of enhancing, a method of spraying or applying the liquid detergent composition for hard surface and bringing it into contact with a hard surface to which oil stains containing solid fat is attached is preferable.
The method for contacting the liquid detergent composition for hard surfaces with a hard surface to which oil stains containing solid fat is attached is preferably spraying or coating, and the liquid detergent composition for hard surfaces is sprayed in the form of droplets. The method of applying or foaming is more preferable. Specifically, it is preferable to bring the liquid cleaning composition for hard surfaces into contact with a hard surface to which oil stains containing solid fat are attached, using a spraying means. The liquid detergent composition for hard surface used in the present invention, using a detergent article for hard surface obtained by filling a container equipped with a sprayer, the liquid detergent composition for hard surface, containing a solid fat More preferably, it is brought into contact with a hard surface having oil stains. The present invention provides a hard surface cleaner article in a spray container, which is obtained by filling a container equipped with a sprayer with the liquid cleaner composition for hard surface used in the present invention.

Examples of the container equipped with 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 equipped with the sprayer is preferably a trigger-type spray capable of spraying or applying the content in the form of droplets or bubbles, and a trigger-type spray provided with a mechanism for spraying the content in the form of droplets or A trigger type spray provided with a mechanism for forming bubbles (foam forming mechanism) is more preferable.

In the spray container-containing hard surface cleaning article, when using a trigger type spray provided with a mechanism for spraying the hard surface liquid cleaning composition in the form of droplets, the spray nozzle of the spray container containing the composition is used. The injection port diameter is preferably 0.1 mm or more, more preferably 0.3 mm, because it is easy to spray, the ejected liquid droplets are not rough, and they are not sprayed linearly and the sprayable area does not become extremely narrow. The above range is preferably 2 mm or less, more preferably 1 mm or less.
When using a trigger-type spray equipped with a mechanism for spraying in the form of droplets, the spray container-containing hard surface cleaner article is preferably 0.1 mL or more, more preferably 0.3 mL or more, in one operation. Then, preferably 5 mL or less, more preferably 2 mL or less of the composition is sprayed.

Further, in the case of using the trigger type spray equipped with a foam forming mechanism in the above-mentioned hard surface cleaner article in a spray container, it is preferable to install several rod-shaped projections in a spin element and a circular space portion having a diameter of 4 to 8 mm. Those having a liquid passage plate are preferable. Here, the spin element is a mechanism that imparts spin to the flow of the liquid substance through the spin element and finally ejects it from the nozzle, and its detailed structure is disclosed in JP-A-8-332422 and JP-A-8-108102. 4(b) and FIG. 1 of Japanese Patent Laid-Open No. 2002-68265 can be referred to.

When using a trigger-type spray equipped with a bubble-forming mechanism, the spray container-containing hard surface cleaner article is preferably 0.5 mL or more, more preferably 1 mL or more, and preferably 30 mL or less in one operation. , More preferably 15 mL or less, and even more preferably 5 mL or less of the composition is sprayed.

The liquid passage plate, which is another member of the bubble forming mechanism, is one in which preferably 3 to 8 rod-shaped protrusions are installed in a circular space portion having a diameter of 5 to 7 mm, and the passing plate is seen on a plane. In this case, a rectangular rod-shaped protrusion having a width of 0.8 to 1.2 mm and a length of 2 to 4 mm is preferable. 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% by area or less, and by installing such a liquid passage plate, the retention and retention of bubbles on the vertical surface becomes good.

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

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, and a tableware. Further, it is preferable as a method for hand-washing and washing the hard surface of a hard article, a method for hand-washing and washing the hard surface of tableware and hard articles around the kitchen, and a method for hand-washing and washing the hard surface of 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 a table and a hard article around a kitchen, more preferably a hard surface of a tableware. Examples of the hard article include food manufacturing equipment such as pipes and parts, hard articles around the kitchen, and tableware.
The hard article around the kitchen is an article used around the kitchen, and specifically,
(1) Storage places for food items such as refrigerators and cupboards, tableware, cookware,
(2) A drainage ditch, a cooktop, a range hood, a sink, a gas cooker, a microwave oven, and the like, and (3) a floor, a wall, and the like around the storage location and the cooking location. In the present invention, these are referred to as "hard items around the kitchen" for convenience.
Also, as tableware, specifically,
(I) Plates, so-called tableware such as bowls,
(Ii) storage containers such as tappers and bottles,
(Iii) Kitchen knives, cutting boards, pots, pans, cookware such as grilled fish,
(Iv) Examples include members and appliances with which foodstuffs such as food appliances such as food processors and mixers come into contact. In the present invention, these are referred to as "tableware" for convenience.
Further, the method of cleaning the hard surface of the present invention is preferably intended for the hard surface of articles selected from tableware, storage containers, cookware, and cooking appliances, and further plates, bowls, tappers, bottles, knives, More preferably, it is intended for the hard surface of articles selected from chopping boards, pans, frying pans, grilled fish, food processors, and mixers.
Examples of the material of the hard surface that is the object of the method for cleaning a hard surface of the present invention include plastic (including silicone resin), metal, pottery, wood, and combinations thereof.
And the method for cleaning a hard surface of the present invention can effectively clean oil stains containing solid fat adhering to these hard surfaces.

In the method for cleaning a hard surface of the present invention, the liquid detergent composition for hard surface used in the present invention is brought into direct contact with the hard surface. Since it is sufficient to leave the composition in contact with it, it is not necessary to apply mechanical force such as scrubbing with a flexible material such as sponge at the time of cleaning.
Therefore, the hard surface cleaning method of the present invention,
(1) Hard articles such as food manufacturing equipment, pipes for refrigerators, cupboards, parts and drains, water bottles, tumblers, kettles, pots, etc. that are difficult to wash by hand.
(2) Food, tableware, cooking utensils storage place, cooking table, range hood, sink, gas stove, microwave oven, etc. where food is cooked and oil stains containing solid fat around the kitchen such as floors and walls around it. Having an extensive hard surface,
(3) Kitchen knives, peelers, graters, slicers, juicer blades, food processor blades, etc.
(4) The present invention can also be applied to articles that are difficult to wash using a flexible material such as a sponge, such as articles having a complicated shape. In the present invention, after the hard surface is washed without applying mechanical force, it may be washed by rubbing if necessary.
Furthermore, the method for cleaning a hard surface of the present invention, the liquid detergent composition for a hard surface, preferably the foamed composition, is applied to the hard surface and left as it is. Can be held for a long time.
The method for cleaning a hard surface of the present invention comprises a step of rinsing the hard surface brought into contact with the liquid detergent composition for hard surfaces with water, preferably a hard surface brought into contact with the liquid detergent composition for hard surfaces. Can be rinsed with water after standing.

<Liquid cleaning composition for hard surfaces>
The liquid detergent composition for hard surfaces of the present invention contains a surfactant [hereinafter referred to as (I) component] 1 mass% or more, a chelating agent [hereinafter referred to as (II) component] 1 mass% or more, and water. However, the liquid detergent composition for hard surfaces has a mass ratio of component (I)/component (II) of 0.25 or more and electrical conductivity of 0.70 S/m or more at 25°C.
In the liquid detergent composition for hard surfaces of the present invention, specific examples and preferred embodiments of the component (I) and the component (II), the mass ratio of the component (I)/the component (II), the preferable range of the electrical conductivity, etc. The matters described in the liquid detergent composition for hard surface used in the cleaning method of the present invention can be applied as appropriate. The liquid detergent composition for hard surfaces used in the cleaning method of the present invention may be the liquid detergent composition for hard surfaces of the present invention.
The liquid detergent composition for hard surfaces of the present invention is preferably a liquid detergent composition for hard surfaces for removing oil.
The liquid detergent composition for hard surfaces of the present invention is preferably used for cleaning a hard surface without dilution, and more preferably used by being brought into direct contact with a hard surface without dilution.

The liquid detergent composition for hard surfaces of the present invention is preferably for hard surfaces of hard articles, further for hard surfaces of tableware or kitchen hard articles, and further for hard surfaces of tableware.
Specifically, the liquid detergent composition for hard surfaces of the present invention is preferably a detergent for application to hard surfaces of hard articles, more preferably a detergent for application to hard surfaces of hard articles around tableware or kitchen. Agents, more preferably detergents for application to the hard surface of dishes.
Further, specifically, the liquid detergent composition for hard surfaces of the present invention is preferably a detergent for spraying on hard surfaces of hard articles, more preferably spraying on hard surfaces of hard articles around tableware or kitchen. Cleaning agent, more preferably for spraying hard surfaces of dishes.

The liquid detergent composition for hard surfaces of the present invention is excellent in detergency of solid fats, and therefore is intended for cleaning hard articles, preferably tableware and hard articles around the kitchen, and more preferably tableware.
The hard articles, the hard articles around the kitchen, and the tableware include those mentioned above.
Further, 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 plates, bowls, tappers, bottles, knives, cutting boards, More preferably, it is for an item selected from a pan, frying pan, grilled fish, food processor, and mixer.
The material of the hard surface to be cleaned according to the present invention, the hard surface around the tableware and the kitchen, and the hard surface of the tableware may be plastic (including silicone resin), metal, pottery, wood, and combinations thereof. Can be mentioned.

Below, the aspect of this invention is illustrated. The matters described in the method for cleaning a hard surface and the liquid cleaning composition for a hard surface of the present invention can be appropriately applied to these embodiments.

<1>
(I) Surfactant [hereinafter referred to as (I) component] 1 mass% or more, (II) Chelating agent [hereinafter referred to as (II) component] 1 mass% or more, and water, and as a (I) component (A) Anionic surfactant [hereinafter referred to as (a) component] is contained, the (II) component/(I) component mass ratio is 0.25 or more, and the electrical conductivity at 25° C. is 0.70S. /M or more, a method for cleaning a hard surface, which comprises contacting a hard surface liquid detergent composition with a hard surface to which oil stains containing solid fat are attached, and performing cleaning without applying mechanical force.

<2>
The component (a) includes (a1) a sulfosuccinic acid ester represented by the following general formula (a1) or a salt thereof [hereinafter referred to as the (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 above <1> A method for cleaning a hard surface as described.

[In the formula, R ^1a and R ^2a are each independently a hydrocarbon group having 5 to 18 carbon atoms. 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 number of moles added, and each independently 0 or more and 6 or less. M ¹ is a hydrogen atom or a cation. ]

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

<4>
In formula (a1), R ^1a and R ^2a are each preferably hexyl group, octyl group, nonyl group, decyl group, dodecyl group, tridecyl group, tetradecyl group, 2-ethylhexyl group, n-octyl group, sec. -Octyl group, isopentyl group, isononyl group, isodecyl group, alkyl group selected from cyclohexyl group, more preferably selected from n-octyl group, sec-octyl group, decyl group, isodecyl group, and 2-ethylhexyl group Cleaning of the hard surface 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 further 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 monoethanolammonium ion, diethanolammonium ion, triethanolammonium ion, mol. Any of the above <2> to <4>, which is a cation selected from organic cations selected from holinium 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 item 1.

<6>
The carbon number of the hydrocarbon group of the component (a2) is 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, further preferably 12 or less, The method for cleaning a hard surface according to any one of <2> to <5>.

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

<8>
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, further preferably 12 or less, straight chain or branched chain alkyl. The method for cleaning a hard surface according to <7>, which is a base.

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

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

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

<12>
The liquid detergent composition for hard surfaces contains the component (I) in an amount of 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 more. <1% by mass, 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, further preferably 6% by mass or less, <1. > The method for cleaning a hard surface according to any one of <11>.

<13>
The liquid detergent composition for hard surfaces preferably contains the component (a) in an amount of 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, more preferably 4% by mass or more, and preferably 10% by mass or less, more preferably 8% by mass or less, further preferably 6% by mass or less, further preferably 5% by mass or less, <1> to <12> The method for cleaning a hard surface according to any one of <12>.

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

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

<16>
The liquid detergent composition for hard surfaces contains the component (a2) in an amount of 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% by mass. 0.5% by mass or less, more preferably 1% by mass or less, even more preferably less than 1% by mass, even more preferably 0.5% by mass or less, still more preferably less than 0.5% by mass, still more preferably The method for cleaning a hard surface according to any one of <2> to <15>, which contains 0.1% by mass or less, and more preferably less than 0.1% by mass.

<17>
The mass ratio of component (a2)/component (a1) in the liquid detergent composition for hard surfaces 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, more preferably 0.2 or less, more preferably 0.1 or less, more preferably less than 0.1, 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 component (a1)/component (I) in the liquid detergent composition for hard surfaces is preferably 0.1 or more, more preferably 0.3 or more, and preferably 0.9 or less, more preferably Is 0.7 or less, The cleaning method of the hard surface in any one of said <2>-<17>.

<19>
The liquid detergent composition for hard surfaces preferably contains the component (b) in an amount of 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, more preferably 6% by mass or less, further preferably 4% by mass or less, the method for cleaning a hard surface according to any one of <9> to <18>.

<20>
The liquid detergent composition for hard surfaces preferably contains sulfobetaine in an amount of 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. , More preferably 6 mass% or less, further preferably 4 mass% or less, the method for cleaning a hard surface according to any one of <10> to <19>.

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

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

<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, hydroxychiphosphonic acids, and salts thereof. Cleaning method.

<24>
Aminocarboxylic acids and salts thereof include ethylenediaminetetraacetic acid (EDTA), nitrilotriacetic acid (NTA), iminodiacetic acid, diethylenetriaminepentaacetic acid (DPTA), N-hydroxyethyl-ethylenediaminetriacetic acid (HEDTA), methylglycinediacetic acid ( MGDA), aspartic acid diacetic acid (ASDA), glutamic acid diacetic acid (GLDA), and one or more kinds selected from salts thereof, according to <23>.

<24>
<22> or <23>, wherein the hydroxycarboxylic acid and its salt are compounds selected from aliphatic hydroxycarboxylic acids and their salts, and further compounds selected from malic acid, citric acid and its salts Method for cleaning hard surfaces.

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

<26>
The liquid detergent composition for hard surfaces contains the component (II) in an amount of 1% by mass or more, preferably 1.5% by mass or more, more preferably 1.8% by mass or more, 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, further preferably 8% by mass or less, 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)/the component (I) in the liquid detergent composition for hard surfaces is 0.25 or more, preferably 0.30 or more, more preferably 0.35 or more, still 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, further preferably 3.0 or less, further preferably 2.0 or less. , More preferably 1.5 or less, further preferably 1.0 or less, more preferably 0.90 or less, further preferably 0.70 or less, the hard according to any one of the above <1> to <26>. How to clean the surface.

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

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

<30>
The method for cleaning a hard surface according to any one of the above items <1> to <29>, wherein the liquid detergent composition for hard surfaces contains a solvent (III) [hereinafter referred to as a 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, further 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, dibutyl. The method for cleaning a hard surface according to <30>, which is a water-soluble organic solvent selected from range glycol and benzyl alcohol.

<32>
The liquid detergent composition for hard surfaces preferably contains the component (III) in an amount of 0.5% by mass or more, more preferably 2% by mass or more, further preferably 4% by mass or more, and preferably 30% by mass or less. , More preferably 20 mass% or less, further preferably 10 mass% or less, the method for cleaning a hard surface according to <30> or <31>.

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

<34>
The solid content in the liquid detergent composition for hard surfaces 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. Mass% or less, more preferably 45 mass% or less, even more preferably 40 mass% or less, even more preferably 35 mass% or less, even more preferably 30 mass% or less, even more preferably 25 mass% or less, still more The method for cleaning a hard surface according to any one of <1> to <33>, which is preferably 20% by mass or less.

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

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

<38>
The method for cleaning a 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 tableware and a hard article around a kitchen, and a hard surface of a tableware.

<39>
The pH of the composition at 25° C. 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 the items <1> to <38>.

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

<41>
The component (a) includes (a1) a sulfosuccinic acid ester represented by the following general formula (a1) or a salt thereof [hereinafter referred to as the (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)], wherein <40> A liquid detergent composition for hard surfaces as described above.

[In the formula, R ^1a and R ^2a are each independently a hydrocarbon group having 5 to 18 carbon atoms. A ¹ and A ² are each independently an alkylene group having a carbon number of 2 or more and 4 or less, and x and y are average addition mole numbers, and are 0 or more and 6 or less each independently. M ¹ is a hydrogen atom or a cation. ]

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

<43>
In formula (a1), R ^1a and R ^2a are each preferably hexyl group, octyl group, nonyl group, decyl group, dodecyl group, tridecyl group, tetradecyl group, 2-ethylhexyl group, n-octyl group, sec. -Octyl group, isopentyl group, isononyl group, isodecyl group, alkyl group selected from cyclohexyl group, more preferably selected from n-octyl group, sec-octyl group, decyl group, isodecyl group, and 2-ethylhexyl group The liquid for hard surfaces according to <41> or <42>, which is an alkyl group, more preferably an alkyl group selected from a 2-ethylhexyl group, and a tridecyl group, and even 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 monoethanolammonium ion, diethanolammonium ion, triethanolammonium ion, mol. Any of the above <41> to <43>, which is a cation selected from organic cations selected from holinium ions, preferably an inorganic cation selected from sodium ions, ammonium ions, potassium ions and magnesium ions. A liquid detergent composition for hard surfaces according to item 1.

<45>
The hydrocarbon group of the component (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, further preferably 12 or less, The liquid detergent composition for hard surfaces according to any one of <41> to <44>.

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

<47>
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, further preferably 12 or less, straight chain or branched chain alkyl. The liquid detergent composition for hard surfaces according to <46>, which is a base.

<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 (b) component] as the (I) component.

<49>
The liquid cleaning composition for hard surfaces according to <48>, wherein the component (b) is sulfobetaine.

<50>
Sulfobetaine has an alkyl group having preferably 10 or more, preferably 18 or less, more preferably 14 or less N-alkyl-N,N-dimethyl-N-sulfopropylammonium sulfobetaine and an alkyl group having carbon number of Preferably 10 or more, preferably 18 or less, more preferably 14 or less N-alkyl-N,N-dimethyl-N-(2-hydroxysulfopropyl)ammonium sulfobetaine, the alkanoyl group preferably has 10 or more carbon atoms, Preferably 18 or less, more preferably 14 or less N-alkanoylaminopropyl-N,N-dimethyl-N-sulfopropylammonium sulfobetaine, and the number of carbon atoms of the alkanoyl group is preferably 10 or more, preferably 18 or less, more preferably Is a sulfobetaine selected from 14 or less N-alkanoylaminopropyl-N,N-dimethyl-N-(2-hydroxysulfopropyl)ammonium sulfobetaine, wherein the liquid cleaning composition for hard surfaces according to <49> above. object.

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

<52>
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, further preferably 2% by mass or more, further preferably 4% by mass or more, and , Preferably 10% by mass or less, more preferably 8% by mass or less, further preferably 6% by mass or less, further preferably 5% by mass or less, according to any one of the above <40> to <51>. Liquid detergent composition for use.

<53>
The ratio of the component (a) in the component (I) is preferably 10% by mass or more, more preferably 20% by mass or more, further preferably 30% by mass or more, further preferably 40% by mass or more, and preferably 90% by mass or more. The liquid detergent for hard surfaces according to any one of <40> to <52>, which is less than or equal to mass%, more preferably less than or equal to 80% by mass, further preferably less than or equal to 70% by mass, and further preferably less than or equal to 60% by 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, still more preferably 1. 7% by mass or more, and preferably 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 The liquid detergent composition for hard surfaces according to any one of <41> to <53>, which is preferably contained in an amount of 5% by mass or less.

<55>
The amount of 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, still more preferably 1% by mass or less. Wt% or less, more preferably less than 1 wt%, even more preferably 0.5 wt% or less, even more preferably less than 0.5 wt%, even more preferably 0.1 wt% or less, even more preferably The liquid detergent composition for hard surfaces 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, still more preferably 0.2 or less. Any of the above <41> to <55>, more preferably 0.1 or less, further preferably less than 0.1, more preferably 0.05 or less, and preferably 0 or more, or 0. A liquid detergent composition for hard surfaces according to item 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> to <56>, a liquid detergent composition for hard surfaces.

<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 contains 4 mass% or less.

<59>
Sulfobetaine is preferably 0.25 mass% or more, more preferably 0.5 mass% or more, further preferably 1 mass% or more, and preferably 8 mass% or less, more preferably 6 mass% or less, further preferably The liquid cleaning composition for hard surfaces according to any one of the above items <49> to <58>, containing 4% by mass or less.

<60>
It contains the component (a) and the component (b), and the mass ratio of the component (a)/the component (b) exceeds 0, preferably 0.1 or more, more preferably 0.2 or more, and further 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, further preferably The liquid detergent composition for hard surfaces 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> to <60>, a liquid detergent composition for hard surfaces.

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

<63>
Aminocarboxylic acids and salts thereof include ethylenediaminetetraacetic acid (EDTA), nitrilotriacetic acid (NTA), iminodiacetic acid, diethylenetriaminepentaacetic acid (DPTA), N-hydroxyethyl-ethylenediaminetriacetic acid (HEDTA), methylglycinediacetic acid ( MGDA), aspartic acid diacetic acid (ASDA), glutamic acid diacetic acid (GLDA), and one or more kinds selected from these salts, the liquid cleaning composition for hard surfaces according to <62>.

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

<65>
Any of the above items <40> to <64>, which contains, as the component (II), a hydroxycarboxylic acid and a salt thereof, an aliphatic hydroxycarboxylic acid and a salt thereof, a citric acid and a salt thereof, and a citrate salt. A liquid detergent composition for hard surfaces as described above.

<66>
The component (II) is 1 mass% or more, preferably 1.5 mass% or more, more preferably 1.8 mass% or more, further preferably 2 mass% or more, and preferably 18 mass% or less, more preferably 15% by mass or less, more preferably 12% by mass or less, further preferably 10% by mass or less, further preferably 8% by mass or less, further preferably 5% by mass or less, any of the above <40> to <65>. 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, still more preferably 0.40 or more, still more preferably 0.50 or more, More preferably 0.60 or more, and preferably 5.0 or less, more preferably 4.0 or less, further preferably 3.0 or less, further preferably 2.0 or less, further preferably 1.5 or less, further The liquid detergent composition for hard surfaces according to any one of <40> to <66>, which is preferably 1.0 or less, more preferably 0.90 or less, still more preferably 0.70 or less.

<68>
Containing the component (a) and the component (b), the mass ratio of the component (II)/component (I) is 0.25 or more, preferably 0.30 or more, more preferably 0.35 or more, and further 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, further preferably 3.0 or less, and further preferably Liquid cleaning for hard surface 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, further preferably 0.90 or less. Agent composition.

<69>
Electric 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, further preferably 8.0 or less, further preferably 7.0 or less, further preferably 6.0 or less, further preferably The liquid detergent composition for hard surfaces according to any one of <40> to <68>, which is 5.5 or less.

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

<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, further 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, dibutyl. 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, further preferably 4% by mass or more, and preferably 30% by mass or less, more preferably 20% by mass or less, further preferably The liquid detergent composition for hard surfaces according to <70> or <71>, which contains 10% by mass or less.

<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. , More preferably 4 or less, still more preferably 3 or less, still more preferably 2.5 or less, according to any one of the above <70> to <72>.

<74>
Content of 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, further preferably 45% by mass. Or less, more preferably 40 mass% or less, still more preferably 35 mass% or less, still more preferably 30 mass% or less, still more preferably 25 mass% or less, still more preferably 20 mass% or less, The liquid detergent composition for hard surfaces according to any one of <40> to <73>.

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

<76>
The liquid detergent composition for hard surfaces according to any one of <40> to <75>, which is for hard surfaces of hard articles, for hard surfaces of tableware or hard articles around kitchen, and for hard surfaces of tableware. object.

<77>
The pH of the composition at 25° C. 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 liquid detergent composition for hard surfaces according to any one of <40> to <76>.

Liquid detergent compositions for hard surfaces shown in Table 1 were prepared using the following components, and the following items were evaluated. The results are shown in Table 1.
The liquid detergent composition for hard surfaces in Table 1 was prepared by a conventional method. That is, (I) component excluding (a1) component, (II) component and butyldiglycol are added to an appropriate amount of ion-exchanged water and dissolved at room temperature (25° C.), followed by sodium hydroxide or/and hydrochloric acid. Was added to adjust the pH (25° C.) to the value shown in Table 1, and then the component (a1) was mixed and stirred to prepare a formulation. In addition, all the mass% of the compounding component in Table 1 is a numerical value based on an effective component. The component (a) represents mass% based on sodium salt.

<Ingredients>
Component (a) Component (a1)-Di-2-ethylhexyl sodium sulfosuccinate (Product name “Aerol CT-1L”, manufactured by Toho Chemical Industry Co., Ltd.) In the general formula (a1), R ^1a and R ^2a are both 2 -Ethylhexyl group, x, y: both 0, M ¹ : compound of sodium

Component (a2)-EO2 Sodium lauryl sulfate ester: In the general formula (a2), R ^11a is a dodecyl group, R ^12a is an ethylene group, n is 2, and M ² is sodium. a), a compound in which R ^11a is a dodecyl group, n is 0, and M ² is sodium

(B) Component 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. is added to the composition, and the composition is treated with a 48 mass% sodium hydroxide aqueous solution (Nankai Chemical Industry Co., Ltd.). 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)", manufactured by Fuso Chemical Industry Co., Ltd.-Ethylenediaminetetraacetic acid sodium salt: Product name "KK-07", manufactured by Chubu Killest Co., Ltd.-Methylglycine diacetate sodium salt: Product Name "Trilon M powder", BASF SE's 1-hydroxyethylidene-1,1-diphosphonic acid sodium salt: Product name "Diquest 2010CS", Italmatch Japan KK

(III) component butyl diglycol: product name "BDG-NS", manufactured by Nippon Emulsifier Co., Ltd.

(1) Detergency (solution immersion evaluation)
A mixture of beef tallow and rapeseed oil in a mass ratio of 9:1 was prepared and used as a model stain (model stain of oil stain containing solid fat, the same applies hereinafter). The mass of a polypropylene test piece of 30 mm (horizontal)×80 mm (vertical)×1 mm (thickness) was measured by a 4-digit balance (x). A model piece was prepared by uniformly coating both sides of the polypropylene test piece with a model stain from the lower end to a height of 50 mm so that the total amount of both sides was 0.02 to 0.03 g. The mass of the soiled piece was measured with a 4-digit balance (y).

50 g of the liquid detergent composition for hard surfaces was placed in a 50 mL container (cylindrical shape having an inner diameter of 35 mm and a height of 68 mm), and then one soiling piece was stood in the same container to contact with the composition. At this time, the soiled portion of the soiled piece was completely immersed in the composition in the container.

After the soiled pieces were immersed in the liquid detergent composition for hard surfaces in the container for the time shown in Table 1, the soiled pieces were taken out and rinsed with running tap water for 1 minute. At this time, the conditions of rinsing with running water were such that 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 vertically on the dirt piece located 5 cm below the opening, and keep the angle fixed at the upper end part where dirt is not attached to the dirt piece. Under running water, tap water flowing over the dirty piece was used to rinse one side of the washed part. At this time, the front and back were changed every 10 seconds and the rinse was performed alternately. After the rinsing was completed, the soiled piece was dried, and then the mass was measured with a 4-digit balance (z). The cleaning rate was calculated by the following formula.
Cleaning rate (%)={(y)-(z)}/{(y)-(x)}×100

(2) Detergency (foam immersion evaluation)
A mixture of beef tallow and rapeseed oil in a mass ratio of 9:1 was prepared and used as a model stain. The mass of a polypropylene test piece of 30 mm (horizontal)×80 mm (vertical)×1 mm (thickness) was measured by a 4-digit balance (x). A model piece was prepared by uniformly coating both sides of the polypropylene test piece with model stains up to a height of 5 cm from the lower end so that the total amount of both sides was 0.02 to 0.03 g. The mass of the soiled piece was measured with a 4-digit balance (y).

A liquid detergent composition for hard surfaces is filled in a trigger type spray container (Magic Rin Handy Spray, manufactured by Kao Co., Ltd.), and the composition is bubbled in a 50 mL container (inner diameter 35 mm x height 68 mm column). 5 times. The total discharge amount of the composition was about 5 g.

Next, one soiling piece was leaned against the inside of the same container, and the soiling piece was brought into contact with the foamed liquid detergent composition for hard surfaces in the container. At this time, the soiled portion of the soiled piece was entirely immersed in the foamed composition in the container. After the soiled piece was immersed in the foam, the soiled piece was allowed to stand for the time shown in Table 1, the soiled piece was taken out, and rinsed with running tap water for 1 minute. At this time, the conditions of rinsing with running water were such that the temperature of tap water was 25° C., the flow rate was about 4 L/min, and the diameter of the opening of the tap was about 15 mm. Hold the dirt piece at 45° against tap water falling vertically on the dirt piece located 5 cm below the opening, and keep the angle fixed at the upper end part where dirt is not attached to the dirt piece. After receiving running water, tap water flowing over the dirty piece was used to rinse the entire wash surface. At this time, the front and back were changed every 10 seconds and the rinse was performed alternately. After the rinsing was completed, the soiled piece was dried, and then the mass was measured with a 4-digit balance (z). The cleaning rate was calculated by the following formula.
Cleaning rate (%)={(y)-(z)}/{(y)-(x)}×100

(3) Electric Conductivity An electric conductivity meter (CM-30R type) manufactured by Toa DKK Co., Ltd. was used for measurement (25° C.) according to the measuring method described in the instruction manual of the device.

Regarding the blending amounts in Table 1, the component (a) is a sodium salt conversion value, and the component (II) is an acid conversion value.
The detergency of Examples 1 and 3 is the average of two measurements.

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

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

(B) Ingredients • Carbobetaine: Product name “Amphitol 20AB”, manufactured by Kao Corporation, Amine Oxide: Product name “Amphitol 20N”, manufactured by Kao Corporation, Component (c), 2-Ethylhexyl glyceryl ether: Product name Penetol GE-EH", manufactured by Kao Corporation

Claims (15)

(I) containing a surfactant [hereinafter referred to as (I) component] 1% by mass or more, a (II) chelating agent [hereinafter referred to as (II) component] 1% by mass to 8% by mass, and water, ( It contains (a) anionic surfactant [hereinafter referred to as (a) component] as component (I) and (b) amphoteric surfactant [hereinafter referred to as component (b)], and as component (a) (a1 ) A sulfosuccinic acid ester represented by the following general formula (a1) or a salt thereof [hereinafter referred to as (a1) component] is contained, and the mass ratio of (a1) component/(b) component is 0.3 or more and 10 or less. A liquid detergent composition for hard surfaces having a mass ratio of component (II)/component (I) of 0.25 or more and electrical conductivity of 0.70 S/m or more at 25° C. A method for cleaning a hard surface, which is brought into contact with a hard surface on which oil stains are contained and is cleaned without applying mechanical force.

[In the formula, R ^1a and R ^2a are each independently a hydrocarbon group having 5 to 18 carbon atoms. 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 number of moles added, and each independently 0 or more and 6 or less. M ¹ is a hydrogen atom or a cation. ] The cleaning method according to claim 1, wherein the component (II) is one or more compounds selected from aminocarboxylic acids, hydroxycarboxylic acids, hydroxychiphosphonic acids, and salts thereof. As the component (a), (a2) an anionic surfactant having a hydrocarbon group having 8 or more and 21 or less carbon atoms and a sulfuric acid ester group or a sulfonic acid group [however, excluding the component (a1)] [the following (a2 Component)] is contained, The cleaning method of Claim 1 or 2. The cleaning method according to claim 3, wherein a mass ratio of component (a2)/component (a1) in the liquid detergent composition for hard surfaces is 1 or less. The cleaning method according to claim 1, wherein the component (b) is sulfobetaine. The cleaning method according to claim 1, wherein a mass ratio of component (a)/component (b) in the liquid detergent composition for hard surfaces is 10 or less. The cleaning method according to any one of claims 1 to 6, wherein the liquid detergent composition for hard surfaces is brought into contact with a hard surface to which an oil stain containing solid fat is attached without diluting it. The cleaning method according to claim 1, wherein the hard surface is a hard surface of tableware. (I) containing a surfactant [hereinafter referred to as (I) component] 1% by mass or more, a (II) chelating agent [hereinafter referred to as (II) component] 1% by mass to 8% by mass, and water, ( It contains (a) anionic surfactant [hereinafter referred to as (a) component] as component (I) and (b) amphoteric surfactant [hereinafter referred to as component (b)], and as component (a) (a1 ) It contains a sulfosuccinic acid ester represented by the following general formula (a1) or a salt thereof [hereinafter referred to as (a1) component], and the mass ratio of (a1) component/(b) component is 0.3 or more and 10 or less. And a liquid cleaning composition for hard surfaces having a mass ratio of component (II)/component (I) of 0.25 or more and electrical conductivity at 25° C. of 0.70 S/m or more.

[In the formula, R ^1a and R ^2a are each independently a hydrocarbon group having 5 to 18 carbon atoms. 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 number of moles added, and each independently 0 or more and 6 or less. M ¹ is a hydrogen atom or a cation. ] The cleaning composition for hard surfaces according to claim 9, wherein the component (II) is one or more compounds selected from aminocarboxylic acids, hydroxycarboxylic acids, hydroxychiphosphonic acids, and salts thereof. As the component (a), (a2) an anionic surfactant having a hydrocarbon group having 8 or more and 21 or less carbon atoms and a sulfuric acid ester group or a sulfonic acid group [however, excluding the component (a1)] [the following (a2 Component)] is contained, The cleaning composition for hard surfaces according to claim 9 or 10 . The cleaning composition for hard surfaces according to claim 11, wherein the mass ratio of component (a2)/component (a1) is 1 or less. The cleaning composition for hard surfaces according to claim 9, wherein the component (b) is sulfobetaine. The cleaning composition for hard surfaces according to claim 9, wherein the mass ratio of component (a)/component (b) is 10 or less. The cleaning composition for hard surfaces according to any one of claims 9 to 14, which is used for cleaning hard surfaces without dilution.