JP6713348B2 - Liquid detergent composition for hard surfaces - Google Patents

Description

The present invention relates to a liquid detergent composition for hard surfaces.

Dishwashing agents for hand-washing are strongly required to have cleaning power against 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 discloses a liquid detergent composition including a surfactant system,
a) a C _{6 to} C ₁₄ straight or branched chain dialkyl sulfosuccinate from about 0.5% to about 10%, preferably from about 1% to about 5%, by weight of the composition.
b) from about 0.1% to 15% by weight of C ₈ -C ₁₈ straight-chain amine oxides of the composition, and of c) C ₁₀ ~C ₁₄ alkyl or hydroxyalkyl sulphate or sulphonates said composition of about 20% by weight to about 40% by weight,
It has been described that a liquid detergent composition comprising ss improves low temperature detergency against oil and/or starch soils.
Patent Document 2 discloses a liquid cleanser characterized by dispersing a surfactant containing a combination of an alkylsulfosuccinate and an aliphatic alkanolamide, and/or an alkylamine oxide, and a mineral abrasive as main components in water. It is described that the composition retains the stability of the mineral abrasive material.

JP, 2008-507611, A JP, 57-185397, A

The present invention relates to a liquid detergent composition for hard surfaces, which has excellent cleaning power for oil stains containing solid fat adhering to a hard surface, and exhibits good foam discharge properties, and a method for cleaning hard surfaces using the same. ..

The present invention contains the following (a) component, (b) component 0% by mass or more and 10% by mass or less, (c) component, and water, and contains (b) component/[(a) component + (b) component + The component (c)] has a mass ratio of 0.7 or less and a solid content of 50 mass% or less, and relates to a liquid detergent composition for hard surfaces.
The "solid content" used in the present invention refers to all the components blended other than water.

<(a) component>
Sulfosuccinate represented by the following general formula (a1) or a salt thereof

[In the formula, R ^1a and R ^2a each independently represent 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 an average number of moles added, and are 0 or more and 6 or less each independently. M ¹ is a hydrogen atom or a cation. ]
<Component (b)>
Anionic surfactant having a hydrocarbon group having 8 to 21 carbon atoms and a sulfuric acid ester group or a sulfonic acid group (however, excluding the component (a))
<Component (c)>
Amine oxide

The present invention also relates to a method for cleaning a hard surface, which comprises bringing the liquid detergent composition for hard surface of the present invention into contact with the hard surface.

According to the present invention, a liquid detergent composition for a hard surface, which has excellent cleaning power for oil stains containing solid fat adhering to the hard surface, and shows good foam dischargeability, and cleaning of a hard surface using the same A method can be provided.
The liquid detergent composition for hard surfaces of the present invention is attached to an article having a hard surface such as plastic, oil stains containing solid fat, without rubbing with a flexible material such as sponge, that is, mechanical force. It is possible to wash without applying, and when used in a sprayer, it is possible to exhibit good foam dischargeability such as a large amount of foaming.

<Liquid cleaning composition for hard surfaces>
In the liquid detergent composition for hard surfaces of the present invention, the content of the anionic surfactant having a hydrocarbon group having 8 to 21 carbon atoms and a sulfate ester group or a sulfonic acid group of the component (b) is defined. Thereby, the interaction between the component (a) having a highly hydrophobic dialkyl group and the highly hydrophilic sulfate group and the component (c) which is an amine oxide can be strengthened. Thereby, the surfactant contained in the liquid detergent composition for hard surfaces of the present invention easily penetrates into the oil stain containing the solid fat, and the solid fat in the oil stain component is easily peeled off, resulting in It is estimated that the cleaning power was improved.
Then, the liquid detergent composition for hard surfaces of the present invention, when used in a method of directly contacting the hard surface, the concentration of the surfactant applied to the hard surface, using a water-containing sponge hard surface It will be higher than when contacted with. Therefore, the effect of the surfactant of the present invention is more remarkably exhibited.
From these things, by using the liquid cleaning composition for hard surfaces of the present invention, oil stains containing solid fat adhered to hard surfaces such as plastics are not rubbed with a flexible material such as a sponge. That is, excellent cleaning power can be obtained even by a cleaning method that does not apply mechanical force.

<(a) component>
The component (a) of 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 a hydrocarbon group having 5 to 18 carbon atoms. A ¹ and A ² are each independently an alkylene group having 2 to 4 carbon atoms, x and y are average addition mole numbers, and each is 0 to 6 independently. 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. The following hydrocarbon groups are preferable, and linear or branched alkyl groups are preferable. R ^1a and R ^2a are each independently more preferably an alkyl group having a branched structure.
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, still more preferably 0.

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

In the general formula (a1), M ¹ 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 preferably an inorganic cation selected from sodium ion, ammonium ion, potassium ion and magnesium ion.

The component (a) is not particularly limited as a method for preparing a compound having the same R ^1a and R ^2a . 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, Kao Corporation's Perex OT-P (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), LufnitA-BO manufactured by BASF (a compound in which both R ^1a and R ^2a are 2-ethylhexyl groups), Toho Chemical Industry Co., Ltd. air roll CT-1L (R ^1a and R ^2a are both 2-ethylhexyl groups). Certain 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 both R ^1a and R ^2a are cyclohexyl groups) that were available from Mitsui Cytec Co., Ltd. Compound) etc. can be used. As the raw material of the component (a), an alcohol having a predetermined number of carbon atoms to which an alkylene oxide is added can be used.

The liquid detergent composition for hard surfaces of the present invention contains the component (a) in terms of detergency, preferably 0.4% by mass or more, more preferably 0.8% by mass or more, and further preferably 1% by mass. Or more, more preferably 1.5 mass% or more, still more preferably 1.7 mass% or more, and preferably 20 mass% or less, more preferably 15 mass% from the viewpoint of reducing foam dischargeability and raw material cost. % Or less, more preferably 13% 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, still more preferably 3% by mass or less.
In the present invention, it is based on (a) descriptions of the mass of the components (wt% or wt ratio) (the ratio of sodium salt equivalent) mass, assuming that sodium M ^1.

<Component (b)>
The component (b) of the present invention is an anionic surfactant having a hydrocarbon group having 8 to 21 carbon atoms and a sulfuric acid ester group or a sulfonic acid group (provided that the component (a) is excluded).

From the viewpoint of detergency, the hydrocarbon group as the component (b) 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, More preferably, 12 or less alkyl groups or aryl groups are preferable.

The anionic surfactant as the component (b) is preferably one or more selected from alkyl sulfate ester salts, polyoxyalkylene alkyl ether sulfate ester 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. An 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. A polyoxyalkylene alkyl ether sulfuric acid ester salt having a polyoxyalkylene group of 3 or more, more preferably 0.4 or more, and preferably 6 or less, more preferably 3 or less, still more preferably 1.5 or less is suitable. is there.
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 (b) 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 (b), a compound represented by the following general formula (b1) is preferable from the viewpoint of blending stability and foam dischargeability.
^{R 1b -O- (R 2b O)} n -SO 3 M 2 (b1)
[In the formula, R ^1b is a linear or branched alkyl group having 8 or more and 21 or less carbon atoms, R ^2b is an ethylene group and/or a propylene group, and n is an average number of moles added 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 (b1), R ^1b is a direct 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. A chain or branched chain alkyl group, preferably a straight chain alkyl group. Specifically, R ^1b 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 (b1), 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 (b1), when R ^2b 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 less than or equal to 3.
Further, in the general formula (b1), when R ^2b is a propylene group, n is preferably 0.1 or more, more preferably 0.2 or more, 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 (b1), when R ^2b is an ethylene group or a propylene group, n can be selected from these ranges, respectively.

In the general formula (b1), 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 (b1) 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 ^1b —OH according to the purpose. , Sulfur trioxide (liquid or gas), sulfur trioxide-containing gas, fuming sulfuric acid, chlorsulfonic acid, is converted into a sulfuric acid ester 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 the main component described in JP-A-8-323200 can be used, the former can obtain polyoxyethylene alkyl ether having a relatively wide distribution of the number of added moles, and the latter can be compared. A compound having an extremely narrow distribution of the number of added moles can be obtained. Further, as disclosed in JP-A-10-158384, it is possible to control the distribution of the number of added moles by using an alkali catalyst and a metal oxide catalyst in combination.

In the general formula (b1), when n is 0, a compound having an alkyl group having a branched structure, which is suitable for R ^1b, is obtained, and the alcohol represented by R ^1b —OH which is a raw material has 8 or more carbon atoms. Alcohol obtained by hydroformylating 14 or less 1-alkene (containing 15 mol% or more and 70 mol% or less of an alkyl group in which a methyl group is branched at the β-position relative to an OH group), having 4 or more and 8 or less carbon atoms Guerbet-type alcohol obtained by condensing an aldehyde and then reducing it (100 mol% of those having a structure in which an alkyl group having 3 to 6 carbon atoms is branched at the β-position relative to the OH group is contained), and 2 of isobutene Synthesis of 3,5,5-trimethylhexanol obtained by hydroformylating a monomer and multi-branched tridecanol (branching rate is 100 mol%) obtained by hydroformylating a trimer of isobutene, petroleum and coal as raw materials Examples thereof include alcohol (which is an alkyl group having a branching ratio of about 20 mol% or more and 100 mol% or less).

In the present invention, the description (mass% or mass ratio) related to the component (b) is the mass (sodium salt conversion) when M ² in the general formula (b1) of the component (b) is assumed to be sodium. Ratio).

The liquid detergent composition for hard surfaces of the present invention contains the component (b) in an amount of 0% by mass or more and 10% by mass or less, preferably 5% by mass or less, and more preferably 3% by mass from the viewpoint of detergency. Or less, more preferably 2.5 mass% or less, still more preferably 2 mass% or less, even more preferably 1.5 mass% or less, even more preferably 1 mass% or less, even more preferably less than 1 mass%, The content is more preferably 0.5% by mass or less, still more preferably less than 0.5% by mass, still more preferably 0.1% by mass or less, still more preferably less than 0.1% by mass. The content of the component (b) may be 0% by mass in the composition.

<Component (c)>
The component (c) of the present invention is an amine oxide. The amine oxide has a function of peeling and washing the solid fat by the interaction with the component (a).

The amine oxide has a hydrocarbon group having 8 to 22 carbon atoms, preferably a linear or branched alkyl group or alkenyl group, and more preferably an alkyl group, from the viewpoint of detergency against solid fat.

As the component (c), the compound of the general formula (c1) is preferable.

[In the formula, R ^1c represents a hydrocarbon group having 8 to 22 carbon atoms, preferably an alkyl group or an alkenyl group, more preferably an alkyl group, and R ^2c and R ^3c 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 (c1), R ^1c 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 against solid fat, R ^2c and R ^3c are preferably methyl groups having 1 carbon atom. From the viewpoint of detergency, E preferably has 2 or 3 carbon atoms.

Specific preferred examples of the component (c) include
(1) Alkyl (C8 or more and 22 or less) dialkyl (C1 or more and 3 or less) amine oxide such as capryl dimethylamine oxide, capryl dimethylamine oxide, lauryl dimethylamine oxide, myristyl dimethylamine oxide, etc.
(2) Fatty acid (having 8 to 22 carbon atoms) amidopropyldialkyl (having 1 to 3 carbon atoms) amine oxide such as lauric acid amidopropyldimethylamine oxide, myristic acid amidopropyldimethylamine oxide, palmitic acid amidopropyldimethylamine oxide From the viewpoint of detergency, (1) alkyl (having 8 to 22 carbon atoms) dialkyl (having 1 to 3 carbon atoms) amine oxide is more preferable.

From the viewpoint of detergency, the liquid detergent composition for hard surfaces of the present invention preferably contains component (c) in an amount of 0.1% by mass or more, more preferably 0.3% by mass or more, and further preferably 0.5% by mass. Mass% or more, more preferably 1 mass% or more, still more preferably 1.5 mass% or more, and preferably 20 mass% or less, more preferably 15 mass% from the viewpoint of reducing foam dischargeability and raw material cost. % Or less, more preferably 13% 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, still more preferably 3% by mass or less.

In the liquid detergent composition for hard surfaces of the present invention, the total content of the components (a), (b) and (c) is preferably 0.6% by mass or more, more preferably from the viewpoint of detergency. Is 1% by mass or more, more preferably 2% by mass or more, still more preferably 3% by mass or more, still more preferably 4% by mass or more, and from the viewpoint of reducing the foam dischargeability and the raw material cost of the surfactant. Preferably 40 mass% or less, more preferably 35 mass% or less, even more preferably 30 mass% or less, even more preferably 25 mass% or less, even more preferably 20 mass% or less, even more preferably 15 mass% or less, More preferably, it is 10 mass% or less.

In the liquid detergent composition for hard surfaces of the present invention, the ratio of the total content of the components (a), (b) and (c) in all the surfactants is preferably from the viewpoint of detergency. It is 50% by mass or more, more preferably 60% by mass or more, further preferably 70% by mass or more, even more preferably 80% by mass or more, still more preferably 90% by mass or more, and may be 100% by mass.

In the liquid detergent composition for hard surfaces of the present invention, it is a mass ratio of the content of the component (a) and the total content of the component (a), the component (b) and the component (c), (a) From the viewpoint of detergency, the mass ratio of component/[(a) component+(b) component+(c) component] is preferably 0.1 or more, more preferably 0.2 or more, still more preferably 0.3. Or more, more preferably 0.35 or more, still more preferably 0.4 or more, and from the same viewpoint, preferably 0.9 or less, more preferably 0.85 or less, further preferably 0.8 or less, It is even more preferably 0.75 or less, still more preferably 0.7 or less, still more preferably 0.65 or less. In addition, [(a) component+(b) component+(c) component] means the total content of the (a) component, the (b) component and the (c) component (the same applies to the following mass ratios). ..

In the liquid detergent composition for hard surfaces of the present invention, it is a mass ratio of the content of the component (b) and the total content of the component (a), the component (b) and the component (c), (b) From the viewpoint of detergency, the mass ratio of component/[(a) component+(b) component+(c) component] is 0.7 or less, preferably 0.65 or less, more preferably 0.6 or less, and further Preferably 0.5 or less, more preferably 0.4 or less, even more preferably 0.3 or less, even more preferably 0.2 or less, even more preferably 0.1 or less, even more preferably 0.05. Or less, more preferably 0.01 or less, and more preferably 0 or more. The mass ratio of component (b)/[component (a)+component (b)+component (c)] may be 0.

In the liquid detergent composition for hard surfaces of the present invention, it is a mass ratio of the content of the component (c) and the total content of the component (a), the component (b) and the component (c), (c) From the viewpoint of detergency, the mass ratio of component/[(a) component+(b) component+(c) component] is preferably 0.1 or more, more preferably 0.2 or more, still more preferably 0.3. Or more, more preferably 0.35 or more, still more preferably 0.4 or more, and from the same viewpoint, preferably 0.9 or less, more preferably 0.85 or less, further preferably 0.8 or less, It is more preferably 0.75 or less, still more preferably 0.7 or less, still more preferably 0.65 or less.

In the liquid detergent composition for hard surfaces of the present invention, the mass ratio of (a) component/(c) component, which is the mass ratio of (a) component content to (c) component content, is From the viewpoint of force, it is preferably 0.1 or more, more preferably 0.2 or more, even more preferably 0.3 or more, even more preferably 0.4 or more, even more preferably 0.5 or more, even more preferably 0.6 or more, more preferably 0.7 or more, and from the same viewpoint, preferably 10 or less, more preferably 8 or less, still more preferably 7 or less, still more preferably 6 or less, still more preferably 5 or less. Or less, more preferably 4 or less, still more preferably 3 or less, even more preferably 2 or less, still more preferably 1.5 or less.

<(d) component>
The liquid detergent composition for hard surfaces of the present invention can contain an alkyl glyceryl ether as the component (d) from the viewpoint of detergency. Examples of the component (d) include alkyl monoglyceryl ether having an alkyl group having 6 to 18 carbon atoms. Specifically, the compound of the following general formula (d1) is preferable.
^R1d- O-(Gly) _r- H (d1)
[In the formula, R ^1d represents an alkyl group having 6 to 18 carbon atoms, Gly represents a structural unit derived from glycerin, preferably a residue obtained by removing one hydroxyl group and one hydrogen atom from glycerin, r Indicates a number of 1 or more and 4 or less. ]

In the general formula (d1), R ^1d is preferably an alkyl group having 6 or more carbon atoms, more preferably 8 or more carbon atoms, and preferably 18 or less carbon atoms, more preferably 12 or less carbon atoms, Octyl group, 2-ethylhexyl group, decyl group and dodecyl group are preferred. r is preferably 1.

From the viewpoint of detergency, the liquid detergent composition for hard surfaces of the present invention preferably contains component (d) in an amount of 0.1% by mass or more, more preferably 0.2% by mass or more, still more preferably 0.5% by mass or more. It is contained in an amount of not less than 6% by mass, preferably not more than 6% by mass, more preferably not more than 4% by mass, further preferably not more than 3% by mass.

<(e) component>
The liquid detergent composition for hard surfaces of the present invention preferably contains a solvent as the component (e) from the viewpoints of detergency and formulation stability. The solvent preferably has 2 or more carbon atoms, more preferably 3 or more carbon atoms, and preferably 10 or less carbon atoms, more preferably 8 or less carbon atoms, and more preferably a water-soluble organic solvent. Specific examples of the component (e) 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-methoxy. A water-soluble organic solvent selected from butanol, phenoxyethanol, phenyl glycol, phenoxyisopropanol, butyl diglycol (diethylene glycol monobutyl ether), dibutylene diglycol and benzyl alcohol, and one or more selected from butyl diglycol, ethanol and propylene glycol. The water-soluble organic solvent of is preferable. Here, the water-soluble organic solvent refers to a solvent having an octanol/water partition coefficient (LogPow) of 3.5 or less.

In the liquid detergent composition for hard surfaces of the present invention, the component (e) is preferably contained in an amount of 0.5% by mass or more, more preferably 2% by mass or more, still more preferably 4 from the viewpoint of detergency and formulation stability. It is contained in an amount of not less than 30% by mass, preferably not more than 25% by mass, more preferably not more than 20% by mass, still more preferably not more than 15% by mass.

When the liquid detergent composition for hard surfaces of the present invention contains the component (e), it is a mass ratio between the content of the component (e) and the total content of the components (a) and (c), The mass ratio of component (e)/[component (a)+component (b)+component (c)] is preferably 0.5 or more, more preferably 0.6 or more, from the viewpoint of blending stability and detergency. , More preferably 0.7 or more, still more preferably 0.8 or more, and from the same viewpoint, preferably 10 or less, more preferably 5 or less, further preferably 4 or less, still more preferably 3 or less, More preferably, it is 2 or less.

<(f) component>
The liquid detergent composition for hard surfaces of the present invention may contain a hydrotrope agent as the component (f) from the viewpoint of compounding stability. As the hydrotrope, toluenesulfonic acid, xylenesulfonic acid, cumenesulfonic acid or their sodium, potassium or magnesium salts are preferable, and p-toluenesulfonic acid or a salt thereof is particularly preferable.

The liquid detergent composition for hard surfaces of the present invention contains the component (f) in terms of compounding stability, preferably 0.5% by mass or more, more preferably 1% by mass or more, and further preferably 1.5% by mass. % Or more, and preferably 15% by mass or less, more preferably 10% by mass or less, further preferably 5% by mass or less.

<(g) component>
The liquid detergent composition for hard surfaces of the present invention may contain a chelating agent as the component (g) from the viewpoint of detergency. Examples of the chelating agent include citric acid, ethylenediamine tetraacetate, methylglycine diacetate, L-glutamic acid diacetate/tetrasodium and the like.

In the liquid detergent composition for hard surfaces of the present invention, the component (g) is preferably 0.1% by mass or more, more preferably 1.0% by mass or more, still more preferably 2.0, from the viewpoint of detergency. It is contained in an amount of not less than 20% by mass, preferably not more than 20% by mass, more preferably not more than 10% by mass, further preferably not more than 6% by mass.

The liquid detergent composition for hard surfaces of the present invention may contain a fatty acid having 8 or more and 22 or less carbon atoms or a salt thereof, or a betaine compound such as sulfobetaine or carbobetaine from the viewpoints of foam dischargeability and rinsability. Good.

The liquid detergent composition for hard surfaces of the present invention includes an anti-gelling agent such as polyalkylene glycol, a thickener such as polyacrylic acid, an enzyme, a fragrance, a dye, a pigment, a bactericide, a preservative, and a pH adjuster. Can be included.

The liquid detergent composition for hard surfaces of the present invention is an inorganic solid component, preferably a mineral, from the viewpoint of foam dischargeability and the viewpoint that the composition of the present invention cleans without applying mechanical force (without applying). It is preferred that the polishing material be essentially free.
Specifically, the content of the inorganic solid component in the composition is preferably 3% by mass or less, more preferably 1% by mass or less, still more preferably 0.5% by mass or less, still more preferably 0.1% by mass. % Or less, more preferably 0.01% by mass or less, and preferably 0% by mass or more. The content of the inorganic solid component in the composition may be 0% by mass.
The mineral abrasive material is
(1) Inorganic oxides such as silica, alumina and titanium oxide,
(2) Inorganic carbonates such as calcium carbonate and magnesium carbonate,
(3) Examples include natural minerals such as diatomaceous earth, clay, kaolin, and silica sand.

In the liquid detergent composition for hard surfaces of the present invention, the solid content is preferably 0.6% by mass or more, more preferably 1% by mass or more, further preferably 2% by mass or more from the viewpoint of detergency. , More preferably 3% by mass or more, still more preferably 4% by mass or more, and from the viewpoint of foam discharge property, 50% by mass or less, preferably 45% by mass or less, further preferably 40% by mass or less, and further more preferably Is 35% by mass or less, more preferably 30% by mass or less, still more preferably 28% by mass or less.
Here, the solid content is the components (a) to (c) and other optional components, that is, components other than water.

The liquid detergent composition for hard surfaces of the present invention contains water. That is, the balance other than the components (a) to (c) and the optional component is water. The liquid detergent composition for hard surfaces of the present invention contains water in an amount of preferably 30% by mass or more, more preferably 50% by mass or more, further preferably 60% by mass or more, still more preferably 70% by mass or more, and The content is preferably 98% by mass or less, more preferably 95% by mass or less, still more preferably 90% by mass or less. As the water, it is preferable to use ion-exchanged water, sterilized ion-exchanged water, or the like.

The pH of the liquid detergent composition for hard surfaces of the present invention at 25° C. is preferably 2 or more, more preferably 4 or more, still more preferably 5 or more, and preferably 10 or less from the viewpoint of mildness to the hand. , More preferably 9 or less, still more preferably 8 or less.

The viscosity of the liquid detergent composition for hard surfaces of the present invention at 20° C. 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. It is preferably 10 mPa·s or less, 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.

The liquid detergent composition for hard surfaces of the present invention is preferably used for hard surfaces of hard articles, for hard surfaces of tableware or kitchen hard articles, and for tableware hard surfaces. It is also preferable that the hard surface of a hard article is washed by hand, the hard surface of a hard article around tableware or a kitchen is washed by hand, and the hard surface of a dish is washed by hand.
Specifically, the liquid detergent composition for hard surfaces of the present invention is preferably a detergent for application to hard surfaces of hard articles, and 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 a spraying agent for spraying hard surfaces of dishes.

Examples of the hard article include pipes, food manufacturing equipment such as parts, hard articles around the kitchen, tableware, and the like, and the liquid detergent composition for a hard surface of the present invention has excellent detergency of solid fat, and thus hard. Articles, preferably tableware and hard articles around the kitchen, more preferably tableware, are to be cleaned.
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 stove, a microwave oven, and the like where food is cooked, and (3) floors and walls around it. 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, cooking utensils 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 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 article selected from a pan, frying pan, grilled fish, food processor, and mixer.
Further, the material of the hard surface to be cleaned of the present invention, the hard surface around the tableware and kitchen, and the hard surface of the tableware are plastic (including silicone resin), metal, pottery, wood, and combinations thereof. Can be mentioned.

<How to clean hard surface>
The method for cleaning a hard surface of the present invention is a method for cleaning a hard surface, which comprises bringing the liquid detergent composition for a hard surface of the present invention into contact with a hard surface.
That is, in the method for cleaning a hard surface of the present invention, the liquid detergent composition for hard surface of the present invention is used. A preferred embodiment of the composition is the same as the above-described liquid detergent composition for hard surface of the present invention.
The method for cleaning a hard surface of the present invention comprises contacting the liquid cleaning composition for a hard surface of the present invention with a hard surface to which oil stains are attached, and to a hard surface to which oil stains further containing solid fat are attached. Can be suitably implemented as a cleaning method. These methods are methods for cleaning a hard surface, in which the liquid detergent composition for hard surfaces of the present invention is brought into contact with oil stains attached to the hard surface.
In one aspect, the present invention provides a method for cleaning a hard surface, which comprises bringing the liquid detergent composition for hard surface for oil removal of the present invention into contact with a hard surface on which oil stains are attached.
Oil stains containing solid fats are stains containing fats and oils, which are 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 the oil stain containing the solid fat when the liquid detergent composition for hard surfaces is contacted may be a state in which the solid fat and the liquid oil are mixed.

In the method for cleaning a hard surface of the present invention, the liquid detergent composition for hard surface is brought into contact with the hard surface.
Specifically, the liquid detergent composition for hard surface, in the undiluted solution, contact the hard surface, or the liquid detergent composition for the hard surface in undiluted solution, contact the hard surface without dilution, That is, a cleaning method in which the liquid detergent composition for hard surfaces is brought into contact with the hard surface without being diluted is preferable. Further, there is a cleaning method in which the liquid detergent composition for hard surfaces is brought into contact with a hard surface on which oil stains containing solid fat is attached without diluting.
To bring the liquid detergent composition for hard surface into contact with the hard surface without diluting it means to not bring the detergent composition into contact with the hard surface after intentionally diluting it with water or the like. For example, the liquid detergent composition for hard surface is brought into contact with a hard surface to which water droplets or the like are 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 without being diluted.
In the present invention, the undiluted solution of the liquid detergent composition for hard surfaces is applied to the hard surface as it is, that is, without changing the composition. For example, the liquid detergent composition for hard surfaces is brought into contact with a hard surface to which oil stains containing solid fat are attached without adhering to a water-containing sponge. After contacting the hard surface, the composition of the liquid detergent composition for hard surfaces may change. That is, after the contact with the hard surface, the composition of the liquid detergent composition for hard surface may be diluted or concentrated.

However, a concentrated composition containing the component (a), the component (b), and the component (c) of the present invention is prepared in advance, and the concentrated composition is diluted with water to prepare a liquid detergent composition for hard surfaces of the present invention. The article may be prepared and contacted with a hard surface. That is, a concentrated composition containing the component (a), the component (b), and the component (c) of the present invention is diluted with water to prepare a liquid detergent composition for hard surfaces of the present invention. It may be a method for cleaning a hard surface, in which the liquid detergent composition is brought into contact with the hard surface without being diluted.

Further, the method for cleaning a hard surface of the present invention includes a cleaning method in which the liquid detergent composition for hard surface is brought into contact with the hard surface and then left without applying mechanical force (without applying). That is, there is a cleaning method in which a flexible material such as a sponge or the like is brought into contact without using a finger or the like and left as it is without applying mechanical force. This is suitable for cleaning parts that are difficult to reach, such as parts that cannot be reached by hands or tools.
Leaving without applying mechanical force means that no intentional operation for cleaning other than contact with the composition is performed, for example. For example, the fact that the contacted composition naturally flows down on the hard surface and that vibrations not intended for cleaning are transmitted to the hard surface can be understood as being left without applying mechanical force.
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.

In the method for cleaning a hard surface of the present invention, the liquid detergent composition for a hard surface 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 as an object. It is preferable to contact at a rate 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 further coating or spraying is preferable.

In the method for cleaning a hard surface of the present invention, from the viewpoint of enhancing the cleaning power, after contacting the hard surface with the liquid detergent composition for 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, and from the same viewpoint, preferably 60 minutes or less, more preferably 30 minutes or less, further preferably 20 minutes or less, still more preferably 10 minutes or less, still more preferably 5 minutes or less. Leave for less than a minute. 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 allowed to stand may be room temperature, and examples thereof include 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, further preferably 40 seconds or more, and the same. From the viewpoint, it is 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, and the liquid detergent composition and the cleaning target. Contact with a hard surface.

In the method for cleaning a hard surface of the present invention, the liquid cleaning composition for a hard surface may be contacted by immersing the hard surface on which oil stains or the like are attached in the composition, but efficiently cleaning power. From the viewpoint of increasing the oil resistance, a method of spraying or coating and contacting with a hard surface to which oil stains and the like are attached is preferable.
The method for bringing the liquid detergent composition for hard surfaces into contact with the hard surface on which oil stains or the like are attached is preferably spraying or coating, and is preferably spraying in the form of droplets or applying in the form of bubbles. Specifically, a spray means is used. That is, it is preferable to use a hard surface cleaner article obtained by filling a container equipped with a sprayer with the liquid cleaner composition for hard surfaces of the present invention. The present invention provides a hard surface detergent article in a spray container, which is obtained by filling a container equipped with a sprayer with the liquid detergent composition for hard surface of the present invention.

The container equipped with the sprayer filled with the liquid detergent composition for hard surface of the present invention in the detergent product for hard surface containing a spray container of the present invention uses a propellant such as a trigger spray container and a pump spray container. Examples include manual spray devices that do not, aerosols that use a propellant, and the like. The container equipped with the sprayer is preferably a trigger type spray capable of spraying or applying the contents in the form of liquid drops or bubbles, and a trigger type spray equipped with a mechanism for spraying the contents in the form of liquid drops or A trigger type spray equipped with a mechanism for forming bubbles (foam forming mechanism) is more preferable.

In the case of a hard surface detergent article containing a spray container of the present invention, when using a trigger type spray equipped with a mechanism for spraying the hard surface liquid detergent composition of the present invention, a spray container containing the composition The injection nozzle has a nozzle diameter of preferably 0.1 mm or more, more preferably 0.1 mm or more, because it is easy to spray, and the ejected droplets are not rough and are not sprayed linearly and the sprayable area does not become extremely narrow. Is 0.3 mm or more, and preferably 2 mm or less, more preferably 1 mm or less.
When a trigger type spray equipped with a mechanism for spraying in the form of droplets is used, the spray container-containing hard surface cleaning agent article of the present invention is preferably 0.1 mL or more, more preferably 0.3 mL, per operation. Above, and 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 the bubble forming mechanism in the hard surface cleaner article containing the spray container of the present invention, preferably, there are several rod-shaped protrusions in the spin element and the circular space portion having a diameter of 4 to 8 mm. Those having a liquid passage plate installed are suitable. 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), FIG. 1 of JP-A-2002-68265, etc. can be referred to.

When a trigger type spray equipped with a foam forming mechanism is used, the spray container hard surface cleaner article of the present invention is preferably 0.5 mL or more, more preferably 1 mL or more, and preferably in one operation. 30 mL or less, more preferably 15 mL or less, 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 3 to 8 rod-shaped projections are preferably installed in a circular space portion having a diameter of 5 to 7 mm, and the passing plate is seen in 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, the area is 70% by area or less, and by installing such a liquid passage plate, the retention of bubbles on the vertical surface becomes good.

As the container for the hard surface cleaner article containing the spray container of the present invention, a commonly used container can be used. For example, polyethylene, polypropylene, or polyethylene terephthalate can be obtained 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 hard surface of a tableware. Further, it is preferable as a method for hand-washing and washing the hard surface of a hard article, a method for washing and hand-washing the hard surface of hard articles around dishes and kitchens, and a method for hand-washing and washing the hard surface of dishes.

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 dish and a hard article around a kitchen, and more preferably a hard surface of a dish.
Examples of the hard articles around the tableware and kitchen include those mentioned above.
Further, the hard surface cleaning method of the present invention is preferably intended for hard surfaces 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 hard surface cleaning method 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 of the present invention is brought into direct contact with the hard surface. Since the composition may be left in contact with the composition, 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 cleaning method of the hard surface of the present invention,
(1) Hard articles that are inconvenient to wash by hand, such as food manufacturing equipment, pipes for refrigerators and cupboards, parts and drains, water bottles, tumblers, kettles, pots, etc.
(2) Food, tableware, storage place of cooking utensils, cooking table, range hood, sink, gas stove, microwave oven, etc. cooking place of food and oil stains containing solid fat around the kitchen such as floors and walls around it Having an extensive hard surface,
(3) Kitchen knife, peeler, grater, slicer, juicer blade, food processor blade, etc.
(4) It can also be applied to articles that are difficult to clean using a flexible material such as sponge, such as articles having a complicated shape. If necessary, rubbing may be performed.
Furthermore, the method for cleaning a hard surface of the present invention, the liquid detergent composition for a hard surface of the present invention, preferably the foamy composition, is applied to the hard surface and left as it is, so that The composition can last longer.
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 left standing and then rinsed with water.

Liquid detergent compositions for hard surfaces shown in Tables 1 and 2 were prepared using the following components, and the following items were evaluated. The results are shown in Tables 1 and 2. The liquid detergent compositions for hard surfaces shown in Tables 1 and 2 were prepared by a conventional method. That is, after adding the components (a) to (g) to an appropriate amount of ion-exchanged water and dissolving them at room temperature (25°C), sodium hydroxide or/and hydrochloric acid are added to adjust the pH (25°C) to 6 Adjusted to. In addition, all the mass% of the compounding component in Table 1 is a numerical value based on an effective component. The component (a) and the component (b) show mass% based on the amount as a sodium salt. Further, the component (f) represents mass% based on the amount as a compound containing water of crystallization.

<Ingredients>
Component (a)-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 groups, x, y: both 0, M ¹ : component of sodium compound (b)-EO2 sodium lauryl sulfate (product name "Emar 270J", manufactured by Kao Corporation), in the general formula (b1), R ^1b : dodecyl group , R ^2b : ethylene group, n: 2, M ² : sodium compound (c) component/C12 amine oxide (product name “Amphitol 20N”, manufactured by Kao Corporation), in the general formula (c1), R ^1c : Dodecyl group, R ^2c , R ^3c : both methyl groups, m, p: both 0
-C8 amine oxide (a compound synthesized from dimethyloctylamine (product name "Pharmine DM0898", manufactured by Kao Co., Ltd.) and hydrogen peroxide solution (manufactured by Nippon Peroxide)), and R ^1c in the general formula (c1). : Octyl group, R ^2c , R ^3c : both methyl groups, m, p: both 0
C14 amine oxide (a compound synthesized from dimethylmyristylamine (product name "Pharmine DM4098", manufactured by Kao Corporation) and aqueous hydrogen peroxide (manufactured by Nippon Peroxide)), and R ^1c in the general formula (c1). : Myristyl group, R ^2c , R ^3c : both methyl groups, m, p: both 0
Palm oil amine oxide (product name “Catinal AOC”, manufactured by Toho Chemical Industry Co., Ltd.), in the general formula (c1), R ^{1c is} an alkyl group having 12 to 18 carbon atoms, R ^2c and R ^3c are both methyl groups. , M, p: both are 0

Component (d): 2-ethylhexyl glyceryl ether (Product name "Penetole GE-EH", manufactured by Kao Corporation)
(E) Component: Butyldiglycol (Product name "BDG-NS", manufactured by Nippon Emulsifier Co., Ltd.)
(F) Component: Paratoluenesulfonic acid monohydrate (Product name "PTS M-7000", manufactured by Meitou Sangyo Co., Ltd.)
(G) Component: Citric acid (Product name “Purified citric acid (anhydrous)”, Fuso Chemical Industry 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 solid fat-containing stain, 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 up to a height of 50 mm 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).

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 leaned against the container and brought into contact with the composition. At this time, the stain-attached portion of the stain piece was entirely immersed in the composition in the container.

The soiled piece was immersed in the liquid detergent composition for hard surface in the container for 1 minute, and then the soiled piece was taken out and rinsed with running tap water for 1 minute. At this time, the running water was rinsed under the conditions 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 on the dirt piece located vertically 5 cm below the opening, and keep the angle fixed at the upper end 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 washed surface. At this time, the front side and the back side were changed every 10 seconds and rinsed 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 a model stain 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 spray container (Magic Rin Handy Spray, manufactured by Kao Corporation), and the composition is bubbled into a 50 mL container (inner diameter 35 mm x height 68 mm column). Sprayed 5 times. The total discharge amount of the composition was about 5 g.

Then, one soiling piece was leaned against the inside of the same container, and the soiling piece was brought into contact with the 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. One minute after contacting the soiled piece in the foam, it was taken out and rinsed with running water for 1 minute. At this time, the running water was rinsed under the conditions 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 the tap water falling vertically on the dirt piece located 5 cm below the opening, and keep the angle fixed at the upper end of the dirt piece where dirt is not attached. After receiving running water, tap water flowing over the dirty piece was used to rinse the entire washed surface. At this time, the front side and the back side were changed every 10 seconds and rinsed 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) Dischargeability (foam specific volume)
The liquid detergent composition for hard surfaces was filled in a trigger type spray container (Magic Rin Handy Spray, manufactured by Kao Corporation) and sprayed 10 times into a 200 mL graduated cylinder (inner diameter 40 mm) in the wide foam mode of the container. .. The 200 mL graduated cylinder mass after spraying was measured using a 4-digit balance, and the difference from the mass of the graduated cylinder before spraying was defined as the amount of applied foam (g) (a). The volume (mL) of bubbles in the graduated cylinder was read visually (b). The foam specific volume was calculated by the following formula. The larger the foam specific volume, the better the foam dischargeability.
Foam specific volume (mL/g)=(b)/(a)

It can be seen that Examples 1 to 15 in Table 1 are superior in cleaning power (solution immersion) as compared with Comparative Examples 1 to 3. Further, it can be seen that Examples 1 to 15 are superior in foam discharge property as compared with Comparative Example 4 in which the solid content exceeds 50% by mass.

<Prescription example>
Table 2 shows examples of the liquid detergent composition for hard surfaces of the present invention. According to the following formulation, it is possible to achieve both excellent foam dischargeability such as excellent cleaning power for oil stains containing solid fat and large foaming amount when used in a sprayer.

Claims (10)

The following (a) component, (b) component 0 mass% or more and 10 mass% or less, (c) component, (e) component 16 mass% or less, and water are contained, and (a) component/(c) component mass ratio is 0.1 to 3, (b) component / is the mass ratio of [(a) component + (b) component + (c) component] is 0.5 or less, of the total surfactant , A liquid cleaning composition for hard surfaces, wherein the ratio of the total content of the components (a), (b) and (c) is 50% by mass or more, and the content of solids is 50% by mass or less. ..
<(a) component>
Sulfosuccinate represented by the following general formula (a1) or a salt thereof

[In the formula, R ^1a and R ^2a each independently represent 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 an average number of moles added, and are 0 or more and 6 or less each independently. M ¹ is a hydrogen atom or a cation. ]
<Component (b)>
Anionic surfactant having a hydrocarbon group having 8 to 21 carbon atoms and a sulfuric acid ester group or a sulfonic acid group (however, excluding the component (a))
<Component (c)>
Amine oxide <(e) component>
solvent The liquid cleaning composition for hard surfaces according to claim 1, which contains the component (a) in an amount of 0.5% by mass or more and 20% by mass or less and the component (c) in an amount of 0.1% by mass or more and 30% by mass or less. The liquid detergent composition for hard surfaces according to claim 1 or 2, wherein the content of the inorganic solid component in the composition is 3% by mass or less. The liquid cleaning for hard surfaces according to any one of claims 1 to 3, wherein the total content of the component (a), the component (b) and the component (c) is 0.6% by mass or more and 40% by mass or less. Agent composition. The liquid detergent composition for hard surfaces according to any one of claims 1 to 4, which is used by directly contacting the hard surface without dilution. A method for cleaning a hard surface, which comprises bringing the liquid detergent composition for hard surface according to any one of claims 1 to 5 into contact with the hard surface. The method for cleaning a hard surface according to claim 6, wherein the liquid detergent composition for hard surface is brought into contact with the hard surface without being diluted. The method for cleaning a hard surface according to claim 6 or 7, wherein the liquid detergent composition for a hard surface is left in contact with the hard surface without applying mechanical force. The method for cleaning a hard surface according to claim 6, wherein the liquid detergent composition for hard surface is sprayed or applied to be brought into contact with the hard surface. A spray surface container-containing hard surface cleaner article, which is obtained by filling a container equipped with a sprayer with the liquid cleaner composition for hard surface according to any one of claims 1 to 5.