WO2023085182A1

WO2023085182A1 - Foaming detergent composition

Info

Publication number: WO2023085182A1
Application number: PCT/JP2022/040949
Authority: WO
Inventors: 隆夫土屋; 清章吉川; 孝典田中
Original assignee: 花王株式会社
Priority date: 2021-11-12
Filing date: 2022-11-02
Publication date: 2023-05-19
Also published as: TW202328419A; JP2023072672A; JP7382476B2

Abstract

Provided is a foaming detergent composition containing prescribed amounts of (a) an alkaline agent, (b) a sulfonic acid-based surfactant that has a hydrocarbon group having 11-24 carbon atoms, (c) a surfactant that has a hydrocarbon group having 5-10 carbon atoms, and (d) a branched fatty acid that has a branched hydrocarbon group having 12-26 carbon atoms and/or a salt thereof, and optionally containing (e) one or more types of surfactants selected from an amine oxide that has a hydrocarbon group having 11-18 carbon atoms and an anionic surfactant that has a hydrocarbon group having 12-18 carbon atoms [excluding substances corresponding to the component (b) and the component (d)], wherein: the mass ratio (c)/(b) of the component (c) content to the component (b) content is 1.0 or more; and the mass ratio (e)/(b) of the component (e) content to the component (b) content is 0.5 or less.

Description

Foaming detergent composition

The present invention relates to a foaming detergent composition and a method for cleaning hard surfaces.

BACKGROUND OF THE INVENTION Food processing plants routinely wash equipment and facilities used to process and/or prepare food to ensure sanitary conditions during breaks in the production schedule. Equipment to be cleaned includes, for example, net conveyors, freezers, slicers, and rice mills. Equipment to be cleaned includes, for example, floors, walls, and workbenches. Since these items to be cleaned are large in scale and have complicated parts, as a method of efficiently cleaning them, foaming cleaning, which is usually applied to the cleaning target by foaming the detergent, is applied to the cleaning target. is adopted.
Such foaming detergents are required to have a high cleaning effect as a countermeasure against food poisoning and other pathogenic bacteria, and for this reason, they generally contain a high concentration of water-soluble inorganic salts such as inorganic alkaline agents and hypochlorous acid. is.

JP-A-2019-199619 discloses (A) a predetermined alkyl and/or alkenyl dimethylamine oxide, (B) an alkaline agent, (C) a predetermined branched fatty acid and/or a salt thereof, (D) water, Disclosed is a method for cleaning an object to be cleaned using a foaming cleaning agent composition having a predetermined mass ratio of (A)/(C).
JP-A-2010-150307 describes (A) an alkaline agent, (B) an anionic surfactant, (C) a predetermined alkyldimethylamine oxide, (D) an aromatic sulfonate, and (E) a water-soluble calcium compound. , (F) a sequestering agent and water in predetermined proportions.
In JP-A-2013-249383, (A) an alkaline agent, (B) an anionic surfactant, (C) a predetermined alkyldimethylamine oxide, and (D) a predetermined fatty acid or a salt thereof are contained in a predetermined ratio. A foaming cleanser composition is disclosed.
Japanese Patent Application Laid-Open No. 2021-181553 describes a composition containing lauric acid or oleic acid, alkyldimethylamine oxide, and an anionic surfactant that has excellent foaming properties, storage stability, and diluent stability, and does not corrode aluminum materials. A foaming cleanser composition is disclosed which is excellent in de-foaming properties during rinsing.
Japanese Patent Application Laid-Open No. 2018-168328 describes a foaming cleaning agent containing dimethylamine oxide, an alkaline agent, a branched fatty acid, and water, which has good foaming properties, foam retention properties, and foam breaking properties, and is used in food and beverage manufacturing plants and kitchens. Agent compositions are described.
In JP-A-2019-73732, an amine oxide and a carboxylic acid having a chain-branched hydrocarbon group having 11 to 12 carbon atoms or a salt thereof containing a carboxylic acid or a salt thereof have excellent foam stability and excellent rinsability for hard surfaces Cleaners are mentioned.

SUMMARY OF THE INVENTION Foaming detergent compositions are required to remove oil stains and the like without rubbing, and surfactants are often used for this purpose. This composition has a high salt strength, and due to stability such as layer separation and turbidity, it was difficult to increase the content of the surfactant, and it was difficult to achieve both stability and cleaning performance.
Also, a composition containing a high-concentration inorganic alkaline agent may corrode aluminum materials and the like. For this reason, silicate is used in combination as an anticorrosive agent. However, when silicate is used in combination, whitening occurs after rinsing, resulting in poor finishing properties.

The present invention provides a foaming detergent composition that is excellent in stability, detergency and aluminum corrosion resistance, and further has sufficient rinsability.

The present invention comprises (a) an alkaline agent [hereinafter referred to as component (a)] in an amount of 1.0 to 15% by mass, and (b) a sulfonic acid surfactant having a hydrocarbon group having 11 to 24 carbon atoms. 1.0% by mass or more and 10% by mass or less of [hereinafter referred to as component (b)], and 4% by mass of (c) a surfactant having a hydrocarbon group having 5 or more and 10 or less carbon atoms [hereinafter referred to as component (c)]. 0.001% to 1.0% by mass of (d) a branched fatty acid having a branched hydrocarbon group with 12 to 26 carbon atoms and/or a salt thereof [hereinafter referred to as component (d)] and optionally (e) an amine oxide having a hydrocarbon group of 11 to 18 carbon atoms [hereinafter referred to as component (e1)] and an anionic surfactant having a hydrocarbon group of 12 to 18 carbon atoms [provided that containing one or more surfactants [hereinafter referred to as component (e)] selected from [hereinafter referred to as component (e2)], excluding those corresponding to components (b) and (d), and (c) (c)/(b), which is the mass ratio of the content of component to the content of component (b), is 1.0 or more, and the mass ratio of the content of component (e) to the content of component (b) (e)/(b) is 0.5 or less.

In addition, the present invention contains component (a) in an amount of 1.0% by mass to 15% by mass, component (b) in an amount of 1.0% by mass to 10% by mass, and component (c) in an amount of 4% by mass to 30% by mass. Hereinafter, the content of component (d) is 0.001% by mass or more and 1.0% by mass or less, optionally including component (e), and the mass ratio of the content of component (c) to the content of component (b) A mixture in which (c)/(b) is 1.0 or more and (e)/(b), which is the mass ratio of the content of component (e) to the content of component (b), is 0.5 or less relates to a method for cleaning hard surfaces, wherein the foaming of is brought into contact with the hard surface.

According to the present invention, it is possible to provide a foaming detergent composition that is excellent in stability, detergency, and aluminum corrosion resistance, and that has sufficient rinsability.

MODES FOR CARRYING OUT THE INVENTION The mechanism by which the stability, detergency and aluminum corrosion resistance of the foaming detergent composition are obtained by the present invention is not necessarily clear, but is presumed as follows. In the foaming detergent composition of the present invention, the component (b) forms a hydrophobic film on the hard surface, and is thought to provide anticorrosion to aluminum materials. Further, by adjusting the ratio of the component (c) and the component (b) to a predetermined value, the detergency due to (b) and the uniformity of the composition are improved, and the stability and detergency of the foaming detergent composition can be obtained. it is conceivable that.
Furthermore, when the water for diluting the foaming detergent composition contains a hardness component, the component (b) is arranged on the surface of the aluminum material via the hardness component in the diluted water, thereby preventing corrosion of the aluminum material by the component (b). It is thought that this will increase the quality of the product. It should be noted that the present invention is not limited to this action mechanism.

<Foaming detergent composition>
The foaming detergent composition of the present invention comprises (a) an alkaline agent as component (a) and (b) a sulfonic acid-based surfactant having a hydrocarbon group having 11 to 24 carbon atoms as component (b). and (c) component (c) a surfactant having a hydrocarbon group having 5 to 10 carbon atoms, and (d) component (d) having a branched hydrocarbon group having 12 to 26 carbon atoms. A branched fatty acid and/or a salt thereof, and optionally (e) an amine oxide having a hydrocarbon group of 11 to 18 carbon atoms [component (e1)] and a shadow having a hydrocarbon group of 12 to 18 carbon atoms and one or more surfactants selected from ionic surfactants [excluding those corresponding to components (b) and (d)] [which are components (e2)] in a predetermined amount.

<(a) component>
Component (a) is an alkaline agent. Component (a) can include hydroxides, carbonates, phosphates and borates of alkali metals or alkaline earth metals. Component (a) is preferably an alkali metal hydroxide, carbonate, phosphate or borate, more preferably an alkali metal hydroxide.
Preferred specific examples of component (a) include alkali metal hydroxides such as sodium hydroxide and potassium hydroxide, alkali metal phosphates such as trisodium phosphate, disodium carbonate, sodium hydrogen carbonate, dicarbonate An alkali metal carbonate such as potassium, an alkali metal borate such as sodium borate, or the like can be used. As the component (a), the above compounds may be used alone, or two or more of these compounds may be used in combination. From the viewpoint of detergency, the component (a) is preferably an alkali metal hydroxide, more preferably sodium hydroxide or potassium hydroxide, and still more preferably potassium hydroxide. When the component (a) contains an alkali metal hydroxide, the concentration of the alkali metal hydroxide in the component (a) is preferably 50% by mass or more, more preferably 70% by mass, from the viewpoint of detergency. % or more, more preferably 90 mass % or more, and even more preferably 100 mass %.
In the present invention, as the component (a), alkali metal silicates such as sodium orthosilicate, sodium metasilicate and sodium sesquisilicate [hereinafter referred to as component (a-1)] can be used. It is not preferable because whitening phenomenon occurs. Therefore, the content of component (a-1) in component (a) is preferably 10% by mass or less, more preferably 5% by mass or less, even more preferably 1% by mass or less, and even more preferably 0.5% by mass. % or less, and the foaming detergent composition of the present invention preferably does not contain component (a-1).

<(b) component>
Component (b) is a sulfonic acid-based surfactant having a hydrocarbon group with 11 to 24 carbon atoms. Component (b) includes one or more compounds selected from alkanesulfonates having a hydrocarbon group of 11 to 24 carbon atoms and alkylbenzenesulfonates having a hydrocarbon group of 11 to 24 carbon atoms. . Salts of component (b) include sodium salts and potassium salts.
Part or all of the hydrocarbon group of component (b) is an alkyl or alkenyl group having 11 to 24 carbon atoms, preferably an alkyl group having 11 to 24 carbon atoms.
Furthermore, it is more preferred that the alkyl group contains one secondary carbon atom attached to the sulfonic acid group. However, when the hydrocarbon group of component (b) is an alkylbenzene of alkylbenzene sulfonate, the alkyl group preferably has 11 to 18 carbon atoms.
The number of carbon atoms in the hydrocarbon group of component (b) is preferably 12 or more, more preferably 14 or more, and preferably 22 or less, more preferably 20 or less.
Component (b) includes one or more compounds selected from secondary alkanesulfonates and linear alkylbenzenesulfonates.
Therefore, the component (b) preferably contains a secondary alkyl group such as a secondary alkanesulfonate in which a sulfonic acid group is bonded to a secondary carbon atom of an alkyl group, or a secondary carbon atom of a linear alkyl group. is bonded to the benzene ring, and the sulfonic acid group is bonded to the para-position of the linear alkyl group bonded to the benzene ring (hereinafter referred to as linear alkylbenzene sulfonate). More than one species of compound is included.

Component (b) includes sodium secondary alkanesulfonate having 11 to 24 carbon atoms, potassium secondary alkanesulfonate having 11 to 24 carbon atoms, and linear alkylbenzene sulfone having a hydrocarbon group having 11 to 24 carbon atoms. At least one compound selected from sodium phosphate and potassium straight-chain alkylbenzenesulfonate having a hydrocarbon group of 11 to 24 carbon atoms is preferable.
Component (b) is preferably sodium secondary alkanesulfonate having 11 to 24 carbon atoms or sodium linear alkylbenzene sulfonate having a hydrocarbon group of 11 to 24 carbon atoms. Linear sodium alkylbenzene sulfonates having 24 or less hydrocarbon groups are more preferred.

Component (b) further includes sodium secondary alkanesulfonate having 11 to 24 carbon atoms, potassium secondary alkanesulfonate having 11 to 24 carbon atoms, and a linear alkyl group having 11 to 18 carbon atoms. One or more compounds selected from straight-chain alkylbenzenesulfonate sodium and straight-chain alkylbenzenesulfonate potassium having a straight-chain alkyl group of 11 to 18 carbon atoms are preferred.
Component (b) is preferably sodium secondary alkanesulfonate having 11 to 24 carbon atoms or sodium linear alkylbenzene sulfonate having a linear alkyl group having 11 to 18 carbon atoms. Sodium linear alkylbenzenesulfonate having a linear alkyl group of 18 or less is more preferable.

<(c) component>
Component (c) is a surfactant having a hydrocarbon group with 5 to 10 carbon atoms. Component (c) consists of (c1) an alkylbenzenesulfonic acid substituted with 1 to 3 alkyl groups having 1 to 3 carbon atoms and a salt thereof [hereinafter referred to as component (c1)], and (c2) 5 or more carbon atoms. Fatty acid having 10 or less hydrocarbon groups and salts thereof [hereinafter referred to as component (c2)], and (c3) amine oxide having a hydrocarbon group having 5 to 10 carbon atoms [hereinafter referred to as component (c3)] One or more selected compounds are included. When the component (c) is a salt, examples of the salt of the component (c) include sodium salts and potassium salts.

Component (c1) includes an aromatic sulfonic acid and/or a salt thereof. Salts of component (c1) include alkali metal salts such as sodium salts and potassium salts.
Component (c1) includes sodium p-toluenesulfonate, potassium p-toluenesulfonate, sodium metaxylenesulfonate, potassium metaxylenesulfonate, sodium cumenesulfonate, and potassium cumenesulfonate, and potassium p-toluenesulfonate is preferred. .

Component (c2) is a fatty acid having a hydrocarbon group of 5 to 10 carbon atoms and/or a salt thereof. Salts of component (c2) include sodium salts and potassium salts.
The number of carbon atoms in the hydrocarbon group of component (c2) is 5 or more, preferably 6 or more, more preferably 8 or more, and 10 or less, preferably 8 or less. Component (c2) includes hexanoic acid, caprylic acid, capric acid, and salts thereof. Salts of component (c2) include alkali metal salts such as sodium salts and potassium salts.
Component (c2) includes caprylic acid, sodium caprylate, and potassium caprylate, with potassium caprylate being preferred.

Component (c3) is preferably a hydrocarbon group having 5 to 10 carbon atoms, preferably a linear or branched alkyl or alkenyl group, more preferably an amine oxide having an alkyl group, and having 5 to 10 carbon atoms. An amine oxide having one alkyl group and two alkyl groups having 1 to 3 carbon atoms is more preferable, and for example, a compound represented by general formula (c3) is even more preferable.

[Wherein, R ^1c represents a hydrocarbon group ^having 5 to 10 carbon atoms, preferably an alkyl group or an ^alkenyl group, more preferably an alkyl group; Represents an alkyl group of 3 or less. ]

In the general formula (c3), R ^1c is preferably an alkyl group or an alkenyl group having 6 to 10 carbon atoms, more preferably an alkyl group having 7 to 9 carbon atoms, from the viewpoint of uniform solubility and rinsability. is the base. From the viewpoint of uniform solubility and rinsability, R ^1c may be a hydrocarbon group structure derived from natural fats and oils. R ^2c and R ^3c are preferably methyl groups having 1 carbon atom from the viewpoint of uniform solubility and rinsability.

Component (c3) includes alkyl (5 or more and 10 or less carbon atoms) dialkyl (1 or more and 3 or less carbon atoms) amine oxides. Alkyl (having 5 to 10 carbon atoms) dialkyl (having 1 to 3 carbon atoms) amine oxide is preferred.

The component (c) is preferably one or more selected from (c2) and (c3), more preferably the component (c2).

<(d) component>
Component (d) is a branched fatty acid and/or a salt thereof having a chain branched hydrocarbon group with 12 to 26 carbon atoms. Salts of component (d) include sodium salts and potassium salts. As the component (d), this branched fatty acid and/or salt thereof may be used alone, or two or more of them may be used in combination. The branched hydrocarbon group is an alkyl group or an alkenyl group, preferably an alkyl group.
The number of carbon atoms in the branched hydrocarbon group of component (d) is 12 or more, preferably 14 or more, more preferably 16 or more, and 26 or less, preferably 24 or less, more preferably 22 or less.
Examples of the component (d) include organic acids and/or salts thereof described in paragraph 0027 of JP-A-2019-73732, and if the carbon atom bonded to the carbonyl carbon is a secondary carbon atom, A fatty acid having a straight chain alkyl group is also a branched fatty acid, and includes isopalmitic acid and/or its salts, isostearic acid and/or its salts, and isoarachidic acid and/or its salts. Component (d) is preferably one or more selected from isostearic acid, isoarachidic acid and salts thereof.
From the viewpoint of rinsability, component (d) is preferably used in combination with component (c), and more preferably used in combination with component (c3).

<Composition and other components of foaming detergent composition>
From the viewpoint of detergency, the foaming detergent composition of the present invention contains component (a) in an amount of 1.0% by mass or more, preferably 1.5% by mass or more, more preferably 1.8% by mass or more, and still more preferably is 2.0% by mass or more, more preferably 3.0% by mass or more, even more preferably 4.0% by mass or more, still more preferably 4.2% by mass or more, and even more preferably 4.4% by mass Above, more preferably 4.6% by mass or more, and from the viewpoint of aluminum corrosion resistance, 15% by mass or less, preferably 10% by mass or less, more preferably 7.0% by mass or less, and still more preferably 5.0% by mass. % by mass or less.

The foaming detergent composition of the present invention contains the component (b) in an amount of 1.0% by mass or more, preferably 1.5% by mass or more, more preferably 1.8% by mass or more, from the viewpoint of aluminum corrosion resistance. Preferably 2.0% by mass or more, still more preferably 3.0% by mass or more, still more preferably 4.0% by mass or more, still more preferably 4.5% by mass or more, still more preferably 5.0% by mass % or more, more preferably 5.5 mass % or more, still more preferably 5.8 mass % or more, and from the viewpoint of rinsability, 10 mass % or less, preferably 9.0 mass % or less, more preferably The content is 8.0% by mass or less, more preferably 7.0% by mass or less.

The foaming detergent composition of the present invention contains component (c) in an amount of 4% by mass or more, preferably 5% by mass or more, more preferably 6% by mass or more, and still more preferably 7% by mass or more, from the viewpoint of uniform solution properties. , and from the viewpoint of detergency, it is contained in an amount of 30% by mass or less, preferably 29% by mass or less, more preferably 28% by mass or less, and even more preferably 25% by mass or less.

In the foaming detergent composition of the present invention, the mass ratio (a)/(b) of the content of component (a) to the content of component (b) is preferably 1.5 from the viewpoint of anticorrosion properties. 1.2 or less, more preferably 1.0 or less, even more preferably 0.8 or less, and preferably greater than 0.

In the foaming detergent composition of the present invention, the mass ratio (c)/(b) of the content of component (c) to the content of component (b) is 1 from the viewpoint of uniform solution property and detergency. 0 or more, preferably 1.1 or more, more preferably 1.2 or more, still more preferably 1.5 or more, and from the viewpoint of detergency, preferably 7.5 or less, more preferably 6.0 or less, More preferably 5.0 or less, still more preferably 4.0 or less.

From the viewpoint of rinsability, the foaming detergent composition of the present invention contains component (d) in an amount of 0.001% by mass or more, preferably 0.005% by mass or more, more preferably 0.1% by mass or more, and From the viewpoint of uniform solubility, the content is 1.0% by mass or less, preferably 0.8% by mass or less, and more preferably 0.6% by mass or less.

<(e) component>
The foaming detergent composition of the present invention may contain other surfactants, but care must be taken when using them, since they may cause a decrease in detergency and rinsability.
Other surfactants that can be used include (e) an amine oxide having a hydrocarbon group having 11 to 18 carbon atoms [hereinafter referred to as component (e1)] and a hydrocarbon group having 12 to 18 carbon atoms. One or more surfactants selected from anionic surfactants [excluding those corresponding to components (b) and (d)] [hereinafter referred to as component (e2)] [hereinafter, (e ) component] can be mentioned.

Component (e1) is preferably an amine oxide having a hydrocarbon group having 11 to 18 carbon atoms, preferably a linear or branched alkyl group or alkenyl group, more preferably an alkyl group. A compound represented by is more preferable.

[Wherein, R ^1e represents a hydrocarbon group ^having 11 to 18 carbon atoms, preferably an alkyl group ^or an alkenyl group, more preferably an alkyl group; Represents an alkyl group of 3 or less. 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 denote m=0 and p=0 or m=1 and p=1. ]

In the above general formula (e1), R ^1e is preferably an alkyl group or alkenyl group having 11 to 18 carbon atoms, more preferably an alkyl group having 11 to 18 carbon atoms, from the viewpoint of detergency and rinsability. is. From the viewpoint of detergency and rinsability, R ^1e may also have a hydrocarbon group structure derived from natural oils such as coconut oil. R ^2e and R ^3e are preferably a methyl group having 1 carbon atom from the viewpoint of detergency and rinsability. E is preferably an alkylene group having 2 or 3 carbon atoms from the viewpoint of detergency and rinsability.

Preferred specific examples of component (e1) include (1) alkyl (11 to 18 carbon atoms) dialkyl (1 to 3 carbon atoms) amines such as cocoalkyldimethylamine oxide, lauryldimethylamine oxide, and myristyldimethylamine oxide (2) Fatty acids (11-18 carbon atoms) amidopropyl dialkyl (1-3 carbon atoms) such as lauramidopropyl dimethylamine oxide, myristate amidopropyl dimethylamine oxide, and palmitate amidopropyl dimethylamine oxide Amine oxides are mentioned, and (1) alkyl (11 to 18 carbon atoms) dialkyl (1 to 3 carbon atoms) amine oxides are more preferable from the viewpoint of detergency and rinsability.

Component (e2) is an anionic surfactant having a hydrocarbon group with 12 to 18 carbon atoms. (e2) component can be used 1 type or in combination of 2 or more types.
The (e2) component includes an alkyl sulfate ester salt having a hydrocarbon group having 12 or more and 18 or less carbon atoms, or a straight chain fatty acid salt. The hydrocarbon group is an alkyl or alkenyl group, preferably an alkyl group. Salts of the component (e2) include sodium salts and potassium salts.
Component (e2) is preferably an alkyl sulfate sodium salt or potassium salt having an alkyl group having 12 to 18 carbon atoms.

When the foaming cleaning composition of the present invention contains the component (e), from the viewpoint of detergency and rinsability, the foaming cleaning composition of the present invention preferably contains the component (e) in an amount of 10% by mass or less, More preferably 7% by mass or less, still more preferably 5% by mass or less, even more preferably less than 2% by mass, still more preferably 0.1% by mass or less, and more than 0% by mass. The mass of component (e) may be the total mass of components (e1) and (e2). However, when the foaming detergent composition of the present invention contains an alkanesulfonic acid or its salt as the component (b), the component (e1) has the property of impairing the rinsability of the alkanesulfonic acid or its salt. The content thereof in the foaming detergent composition of the present invention is preferably 0.2% by mass or less, more preferably 0.1% by mass or less, still more preferably 0.05% by mass or less, and 0 It is more than mass %, and more preferably not substantially contained. The content of component (e) in the foaming detergent composition of the present invention may be 0% by mass. In addition, since the straight chain fatty acid salt having 12 to 18 carbon atoms corresponding to the component (e2) impairs the anticorrosion property in the present invention, its blending is restricted. The content of the straight-chain fatty acid salt in the foaming detergent composition of the present invention is preferably 0.5% by mass or less, more preferably 0.2% by mass or less, still more preferably 0.1% by mass, as defined by the acid form. % or less, more preferably 0.01 mass % or less, and more than 0 mass %. It is even more preferable that the foaming detergent composition of the present invention substantially does not contain a straight chain fatty acid salt.

In the foaming detergent composition of the present invention, the mass ratio (e)/(b) between the content of component (e) and the content of component (b) is determined from the viewpoint of detergency and aluminum corrosion resistance. , 0.5 or less, preferably less than 0.5, more preferably 0.4 or less, even more preferably 0.2 or less, even more preferably 0.1 or less, even more preferably less than 0.1, and 0 above, or even greater than 0.

(b)/[(b ) + (d) + (e)] is preferably 0.5 or more, more preferably 0.6 or more, and still more preferably 0.8 or more from the viewpoint of aluminum corrosion resistance, and from the viewpoint of rinsability, It is preferably 1.00 or less, more preferably 0.99 or less, and still more preferably 0.98 or less.

It is presumed that the foaming detergent composition of the present invention provides anti-corrosion effects due to adsorption of component (b) on aluminum materials. Moreover, it is presumed that the hardness component in the tap water affects the adsorption of the component (b). Therefore, the (f) sequestering agent (hereinafter referred to as the (f) component), which is generally used in detergents, may impair the corrosion resistance of aluminum, so care must be taken when using it.
Component (f) is sodium diisobutylene maleate, potassium diisobutylene maleate, sodium aminotrimethylenephosphonate, potassium aminotrimethylenephosphonate, sodium 1-hydroxyethylidene-1,1-diphosphonate, and 1-hydroxy potassium ethylidene-1,1-diphosphonate, sodium 2-phosphonobutane-1,2,4-tricarboxylate, potassium 2-phosphonobutane-1,2,4-tricarboxylate, sodium ethylenediaminetetramethylenephosphonate, ethylenediaminetetramethylenephosphonic acid Potassium, sodium diethylenetriaminepentamethylenephosphonate, potassium diethylenetriaminepentamethylenephosphonate, trisodium nitrilotriacetic acid, tripotassium nitrilotriacetic acid, disodium hydroxyethylimino diacetic acid, dipotassium hydroxyethylimino diacetic acid, trisodium methylglycine diacetic acid , methylglycine diacetic acid tripotassium, ethylenediaminetetraacetic acid tetrasodium, ethylenediaminetetraacetic acid tetrapotassium, hydroxyethylethylenediamine triacetic acid trisodium, hydroxyethylethylenediamine triacetic acid tripotassium, L-glutamic acid-N,N-2acetic acid tetrasodium, L -glutamic acid-N,N-2 tetrapotassium acetate, L-aspartic acid-N,N-2 tetrasodium acetate, L-aspartic acid-N,N-2 tetrapotassium acetate, diethylenetriamine pentaacetate pentasodium, diethylenetriamine pentaacetate 5 Potassium, disodium tartrate, dipotassium tartrate, sodium potassium tartrate and the like.

When the foaming cleaning composition of the present invention contains the (f) component, from the viewpoint of aluminum corrosion resistance, the foaming cleaning composition of the present invention preferably contains the (f) component in an amount of less than 1% by mass, more Preferably 0.5% by mass or less, more preferably 0.4% by mass or less, even more preferably 0.3% by mass or less, still more preferably 0.2% by mass or less, and more than 0% by mass can be done. In addition, (f) component is content based on the quantity of the value converted as a sodium salt type.

The foaming detergent composition of the present invention can optionally contain (g) an oxidizing halogen acid and/or a salt thereof [hereinafter referred to as component (g)] from the viewpoint of detergency and sterilization properties. The foaming detergent composition of the present invention can contain one or more components (g).
The oxidizing halogen acid of component (g) includes hypochlorous acid, hypobromous acid, and chlorous acid, with hypochlorous acid being preferred from the viewpoint of sterilization effect. Examples of the oxidizing halogen acid salt of component (g) include hypochlorous acid, hypobromous acid, and alkali metal salts of chlorous acid. Metal salts are preferred and sodium hypochlorite is more preferred.

In the foaming detergent composition of the present invention, the component (g) is preferably 0.5% by mass or more, more preferably 1% by mass or more, and still more preferably 2% by mass or more, from the viewpoint of detergency and sterilization effect. More preferably 3% by mass or more, and from the viewpoint of feeling during use, preferably 10% by mass or less, more preferably 8% by mass or less, even more preferably 6% by mass or less, and even more preferably 5% by mass or less. be able to. In addition, content of (g) component is content based on the quantity of the value converted as a sodium salt.

The foaming detergent composition of the present invention is preferably liquid and can contain water. That is, in the foaming detergent composition of the present invention, it is preferable that the balance other than the components (a) to (d) and optional components is water. The foaming detergent composition of the present invention contains water preferably at least 60% by mass, more preferably at least 65% by mass, even more preferably at least 70% by mass, even more preferably at least 75% by mass, and even more preferably at least 80% by mass. % or more, preferably less than 94% by mass, more preferably 93% by mass or less. As water, it is preferable to use ion-exchanged water, sterilized ion-exchanged water, or the like.

The pH at 25° C. of the foaming detergent composition of the present invention is preferably 12.5 or higher, more preferably 12.8 or higher, still more preferably 13.0 or higher, still more preferably 13.0 or higher, from the viewpoint of detergency. 2 or more and, for example, 14 or less. The pH at 25°C can be measured by the glass electrode method. Specifically, the pH at 25°C of the foaming detergent composition of the present invention is measured by the following pH measurement method.

<Method for measuring pH>
A pH meter (pH/ion meter F-23, manufactured by HORIBA) is connected to a combined electrode for pH measurement (glass-sliding sleeve type, manufactured by HORIBA), and the power is turned on. A saturated potassium chloride aqueous solution (3.33 mol/L) is used as the pH electrode internal liquid. Next, pH 6.86 standard solution (neutral phosphate standard solution), pH 9.18 standard solution (borate standard solution), and pH 12.0 standard solution (saturated calcium hydroxide standard solution) are each filled in a 100 mL beaker. and immersed in a constant temperature bath at 25°C for 30 minutes. The pH measurement electrode is immersed in a constant temperature standard solution for 3 minutes, and calibrated in the order of pH 6.86→pH 9.18→pH 12.0. A sample to be measured (the foaming detergent composition of the present invention) is adjusted to 25° C., the electrode of the pH meter is immersed in the sample, and the pH is measured after 1 minute.
The pH at 25° C. of a diluted solution obtained by diluting the foaming detergent composition of the present invention with water can also be measured in the same manner. In that case, in the above description, the foaming cleaning composition of the present invention shall be read as a diluted solution obtained by diluting the foaming cleaning composition of the present invention with water.

<Other ingredients>
In addition to the components (a) to (g), the foaming detergent composition of the present invention may optionally contain surfactants, solvents, hydrotropic agents, dispersants, pH Other ingredients such as modifiers, thickeners, viscosity modifiers, fragrances, colorants, antioxidants, preservatives, bleaches, bleach activators [however, corresponding to components (a) to (g) excluding those] can be blended.

The foaming detergent composition of the present invention may be used after being diluted with water. For example, the foaming detergent composition of the present invention has a hardness of preferably 0.1° DH or more, more preferably 0.2° DH or more, still more preferably 0.3° DH or more, and still more preferably is 0.5° DH or more, even more preferably 1° DH or more, even more preferably 2° DH or more, and preferably 20° DH or less, more preferably 10° DH or less, even more preferably 8° It may be a foaming detergent composition that is diluted with water having a DH or less, more preferably 6° DH or less. This water is preferably water containing calcium ions.

Water hardness (° DH) as used herein means _German hardness. ° DH = 17.8 ppm). The German hardness of the water used for washing can be adjusted, for example, based on values calculated from the types and amounts of hardness components added. In addition, when using water of unknown hardness such as tap water as the water used for washing, the German hardness of the water is obtained by the chelate titration method using disodium ethylenediaminetetraacetic acid described below. .
A specific method for measuring the German hardness of water in the present specification is shown below.

<Method for measuring the German hardness of water>
〔reagent〕
・ 0.01 mol / L EDTA · 2Na solution: 0.01 mol / L aqueous solution of disodium ethylenediaminetetraacetate (solution for titration, 0.01M EDTA-Na2, manufactured by SIGMA-ALDRICH)
・Universal BT indicator (product name: Universal BT, manufactured by Dojindo Laboratories)
- Ammonia buffer solution for hardness measurement (solution of 67.5 g of ammonium chloride dissolved in 570 mL of 28 w/v% ammonia water and adjusted to 1000 mL with deionized water)
[Measurement of German hardness]
(1) Collect 20 mL of water as a sample in a conical beaker with a whole pipette.
(2) Add 2 mL of ammonia buffer for hardness measurement.
(3) Add 0.5 mL of Universal BT indicator. Confirm that the solution after the addition is reddish purple.
(4) A 0.01 mol/L EDTA·2Na solution is added dropwise from a burette while shaking the conical beaker well, and the end point of the titration is when the sample water turns blue.
(5) Calculate the total hardness by the following formula.
Hardness (° DH) = T x 0.01 x F x 56.0774 x 100/A
T: Titration volume (mL) of 0.01mol/L EDTA/2Na solution
A: Sample volume (20 mL, volume of water to be sampled)
F: Factor of 0.01mol/L EDTA/2Na solution

The foaming detergent composition of the present invention is preferably used for hard surfaces of hard articles, food processing equipment and/or cooking equipment. That is, the present invention is preferably a foaming detergent composition for food processing equipment and/or cooking equipment. The foaming detergent composition of the present invention is suitable for cleaning a hard surface containing aluminum, for example, a hard surface made of an alloy containing aluminum or aluminum metal.
In the present invention, the term "food processing equipment and/or cooking equipment" means equipment and equipment used when processing and/or cooking food in a food processing plant. Examples of such devices include net conveyors, freezers, slicers, rice mills, and the like. In addition, such facilities include, for example, floors, walls, workbenches, and the like.

<Washing method for hard surface>
The present invention comprises (a) an alkaline agent [hereinafter referred to as component (a)] in an amount of 1.0 to 15% by mass, and (b) a sulfonic acid surfactant having a hydrocarbon group having 11 to 24 carbon atoms. 1.0% by mass or more and 10% by mass or less of [hereinafter referred to as component (b)], and 4% by mass of (c) a surfactant having a hydrocarbon group having 5 or more and 10 or less carbon atoms [hereinafter referred to as component (c)]. 0.001% to 1.0% by mass of (d) a branched fatty acid having a branched hydrocarbon group with 12 to 26 carbon atoms and/or a salt thereof [hereinafter referred to as component (d)] and optionally (e) an amine oxide having a hydrocarbon group of 11 to 18 carbon atoms [hereinafter referred to as component (e1)] and an anionic surfactant having a hydrocarbon group of 12 to 18 carbon atoms [provided that excluding those corresponding to components (b) and (d)] [hereinafter referred to as component (e2)] [hereinafter referred to as component (e)], and component (c) (c) / (b), which is the mass ratio of the content of component (b) to the content of component (b), is 1.0 or more, and the mass ratio of the content of component (e) to the content of component (b) is Provided is a method for cleaning a hard surface, comprising foaming a mixture in which (e)/(b) is 0.5 or less and bringing the mixture into contact with the hard surface.
Preferred embodiments of the components (a) to (e) in the hard surface cleaning method of the present invention are the same as the preferred embodiments of the components (a) to (e) of the foaming cleaning composition of the present invention. In addition, the mixture may optionally be mixed with the components (f) to (g) described in the foaming detergent composition of the present invention and other components.

Further, the method for cleaning a hard surface of the present invention includes the foaming cleaning agent composition of the present invention and a cleaning agent having a hardness of preferably 0.1° DH or more, more preferably 0.2° DH or more, and still more preferably 0.3° DH. ° DH or more, even more preferably 0.5 ° DH or more, even more preferably 1 ° DH or more, even more preferably 2 ° DH, and preferably 20 ° DH or less, more preferably 10 ° DH or less , more preferably 8° DH or less, still more preferably 6° DH or less, are mixed and the mixture is foamed and brought into contact with the hard surface.

Specifically, the foaming cleaning agent composition of the present invention can be suitably used in a method for cleaning food processing equipment and/or cooking equipment, including steps 1 to 3 below. The method for cleaning a hard surface of the present invention is not limited to this specific example, and the mixture foamed and brought into contact with the hard surface consists of components (a), (b), and (c). ) component, (d) component, optionally (e) component, and water.

Step 1: the foaming detergent composition of the present invention is diluted in advance with water at a dilution ratio of 2 to 200 times (preferably 5 to 200 times) and/or while being diluted, is sprayed in the form of foam, Step of adhering to food processing equipment and/or cooking equipment Step 2: Process of holding foam for a certain period of time Step 3: Process of rinsing food processing equipment and/or cooking equipment with water

In step 1, the foaming detergent composition of the present invention is diluted in advance with water at a dilution ratio of 2 to 200 times (preferably 5 to 200 times), and then sprayed in foam. Alternatively, the foaming detergent composition is placed in a dedicated container, directly connected to a water supply by a hose or the like, mixed while being diluted, and sprayed in a foamy state. By combining the pre-dilution and simultaneous dilution described above, the diluted solution of the foaming cleaning composition can also be sprayed in the form of foam. The dilution ratio in step 1 is 2 to 200 times, preferably 5 to 200 times, more preferably 20 to 100 times.

In step 1, a dilute solution of a foaming cleaning composition sprayed onto a hard surface in the form of foam, namely component (a), component (b), component (c), component (d) and optionally component (e). and water, the component (a) is preferably 0.005% by mass or more, more preferably 0.006% by mass or more, still more preferably 0.010% by mass or more, and still more from the viewpoint of detergency Preferably 0.015% by mass or more, more preferably 0.025% by mass or more, still more preferably 0.035% by mass or more, still more preferably 0.05% by mass or more, and from the viewpoint of environmental consideration Therefore, the content is preferably 5.0% by mass or less, more preferably 4.5% by mass or less, still more preferably 1.0% by mass or less, and even more preferably 0.5% by mass or less.

Further, the dilute solution of the foaming cleaning composition sprayed onto the hard surface in the form of foam preferably contains component (b) in an amount of 0.005% by mass or more, more preferably 0.006% by mass, from the viewpoint of aluminum corrosion resistance. % or more, more preferably 0.010% by mass or more, still more preferably 0.015% by mass or more, still more preferably 0.020% by mass or more, still more preferably 0.03% by mass or more, still more preferably 0.05% by mass or more, and from the viewpoint of rinsability, preferably 5.0% by mass or less, more preferably 4.5% by mass or less, even more preferably 1.0% by mass or less, and even more preferably 0.5% by mass or less. It contains 5% by mass or less.

Further, from the viewpoint of the properties of the diluted solution of the foaming cleaning composition, the diluted solution of the foaming cleaning composition sprayed onto the hard surface in the form of foam preferably contains 0.020% by mass or more of the component (c). More preferably 0.030% by mass or more, still more preferably 0.050% by mass or more, and from the viewpoint of detergency, preferably 5% by mass or less, more preferably 4% by mass or less, still more preferably 3% by mass or less contains.

In addition, the dilute solution of the foaming cleaning composition sprayed onto the hard surface in the form of foam preferably contains 0.0001% by mass or more, more preferably 0.0005% by mass of the component (d) from the viewpoint of rinsability. From the viewpoint of foam quality, the content is preferably 0.10% by mass or less, more preferably 0.05% by mass or less, and still more preferably 0.01% by mass or less.

In addition, the dilute solution of the foaming detergent composition that is sprayed onto a hard surface in the form of foam preferably contains component (e) in an amount of 2% by mass or less, more preferably 1% by mass or less, from the viewpoint of foam quality and rinsability. , more preferably 0.5% by mass or less, even more preferably 0.1% by mass or less, and more than 0% by mass.
However, when the foaming detergent composition of the present invention contains an alkanesulfonic acid or its salt as the component (b), the component (e1) in the diluted solution has the property of impairing the rinsability of the alkanesulfonic acid or its salt. Therefore, the content in the foaming detergent composition of the present invention is 0.010% by mass or less, preferably 0.005% by mass or less, more preferably 0.0025% by mass or less, and 0 More than mass %, more preferably not substantially contained.

In the diluted solution, (e) / (b), which is the mass ratio of the content of component (e) and the content of component (b), and the content of component (b), component (b), (b)/[(b)+(d)+(e)], which is the mass ratio to the total content of components (d) and (e), is in the same range as for the foaming detergent composition described above.
In addition, the diluted solution preferably contains 0.2% by mass or less, more preferably 0.1% by mass or less, still more preferably 0.01% by mass or less, and more than 0% by mass of component (f). can do.

In addition, when the diluted solution contains component (g) in order to improve detergency and sterilization, the diluted solution preferably contains component (g) in an amount of 0.01% by mass or more, more preferably 0.02% by mass or more, more preferably 0.04% by mass or more, still more preferably 0.08% by mass or more, and preferably 5% by mass or less, more preferably 4% by mass or less, still more preferably 3% by mass % or less, more preferably 2 mass % or less.

Here, the water used for diluting the foaming detergent composition is generally assumed to be water containing hardness components, such as tap water. The hardness of the water used for diluting the foaming detergent composition is preferably 0.1° DH or more, more preferably 0.2°, from the viewpoint of continuous spraying of good foam and from the viewpoint of aluminum corrosion resistance. DH or higher, more preferably 0.3° DH or higher, even more preferably 0.5° DH or higher, even more preferably 1° DH or higher, even more preferably 2° DH or higher, and preferably 20° DH or less, more preferably 10° DH or less, even more preferably 8° DH or less, and even more preferably 6° DH or less.
In addition, the pH of the diluted solution of the foaming detergent composition at 25°C is preferably 12.0 or higher, more preferably 12.2 or higher, still more preferably 12.4 or higher, and preferably It is 13.5 or less, more preferably 13.0 or less, still more preferably 12.8 or less.

As an aspect of spraying the diluted solution of the foaming cleaning composition of the present invention in the form of foam, an appropriate amount of the diluted solution obtained by diluting the foaming cleaning composition of the present invention with water to a predetermined ratio is filled into a dedicated foam cleaning machine. Then, an embodiment in which air/compressed air from the outside is mixed and jetted in the form of foam is preferably exemplified. The content of the foaming detergent composition of the present invention in a diluted solution (cleaning liquid) is preferably 0.02% by mass or more and 10% by mass or less, more preferably 0.02% by mass or more and 8% by mass. % or less, more preferably 0.02 mass % or more and 6 mass % or less. If the processing area is large, such as a production line in a food processing factory, a foam washer (for example, "SCU-HF" manufactured by Spraying Co., Ltd., "KF-100", "KF-200" manufactured by Kao Corporation) is used. It is preferably used. In addition, when the treatment area is small, such as a cooking utensil such as a cutting board, a hand sprayer capable of intermittently generating foam, such as a trigger sprayer or a foam sprayer, is preferably used.

In step 1, it is preferable to jet in a foamy state without intermittence. Here, "injection without intermittence" means, for example, using a foam washer, the detergent is continuously foamed (for example, for 5 seconds or more) while the valve is opened by a lever or switch. Represents to continue to jet, this is an "intermittent" jet, for example, using a hand sprayer such as a trigger sprayer or foam sprayer, it is jetted when the lever is pulled, and the jet stops instantly. It is distinguished from the mode of injection.

The mode of using a foam washer to spray foam without intermittence is more effective when the area and scale of the food processing equipment and/or cooking equipment to be cleaned are large.

When using a foam washing machine, the foaming ratio (ratio of foam volume (mL)/foam mass (g)) is preferably 3 to 50 times, more preferably 5 to 40 times, still more preferably 10 to 40 times. It is preferable to have The pressure (gauge pressure) during injection is preferably 0.1 to 1 MPa, more preferably 0.2 to 0.8 MPa, still more preferably 0.2 to 0.5 MPa. When using a hand sprayer such as a trigger sprayer or a foamer sprayer, the foaming ratio is preferably 2 to 30 times, more preferably 2 to 20 times, and still more preferably 3 to 10 times.

Step 2 is a step of spraying the diluted solution of the foaming detergent composition of the present invention in the form of foam in step 1, attaching it to food processing equipment and/or cooking equipment, and then holding the foam for a certain period of time.
The time for which the foam is retained in step 2 is preferably 1 minute or more from the viewpoint of the mechanism and workability of each device, and from the same viewpoint, preferably 60 minutes or less, more preferably 45 minutes or less, and even more preferably It is 30 minutes or less, more preferably 20 minutes or less, still more preferably 15 minutes or less, still more preferably 10 minutes or less, and even more preferably 5 minutes or less.
In addition, the time for which the foam is retained in step 2 is preferably 10 minutes or longer, more preferably 15 minutes or longer, still more preferably 20 minutes or longer, and from the same standpoint, preferably 60 minutes or shorter. , more preferably 45 minutes or less, and still more preferably 30 minutes or less.

The time for which the foam is retained in step 2 varies depending on the dilution ratio of the foaming detergent composition in the diluted solution of the foaming detergent composition and the usage scene, and is not particularly limited, but is, for example, 2 to 50 times ( At a dilution rate of preferably 5 to 50 times, the foam retention time is 1 to 60 minutes, and at a dilution rate of 50 to 200 times, it is preferable to stably retain foam for 1 to 10 minutes .

It is preferable to leave it alone while the foam is retained in step 2, but it is also possible to add a small amount of water or the like.

After holding the foam for a certain period of time, in step 3, rinse the food processing equipment and/or cooking equipment with water. The temperature of the rinse water is preferably 10-70°C, more preferably 20-70°C. As the rinsing water, tap water can be used, and it may be used after being heated so as to adjust the water temperature to the above preferable one. In general, the rinsing work is performed manually using a hose or the like. The foaming detergent composition of the present invention is excellent in removing foam during rinsing, requires less water for rinsing than conventional detergent compositions, is economically advantageous, and reduces workload. It also significantly contributes to the reduction of (working time and number of workers) and environmental load.

In addition to the embodiments described above, the present invention discloses the following aspects.
<1>
(a) 1.0% by mass or more and 15% by mass or less of an alkali agent [hereinafter referred to as component (a)];
(b) 1.0 to 10% by mass of a sulfonic acid-based surfactant having a hydrocarbon group having 11 to 24 carbon atoms [hereinafter referred to as component (b)];
(c) 4% to 30% by mass of a surfactant having a hydrocarbon group having 5 to 10 carbon atoms [hereinafter referred to as component (c)];
(d) 0.001% by mass or more and 1.0% by mass or less of a branched fatty acid having a branched hydrocarbon group with 12 to 26 carbon atoms and/or a salt thereof [hereinafter referred to as component (d)], and optionally (e ) An amine oxide having a hydrocarbon group having 11 to 18 carbon atoms [hereinafter referred to as component (e1)] and an anionic surfactant having a hydrocarbon group having 12 to 18 carbon atoms [however, component (b) and ( d) excluding those corresponding to components] [hereinafter referred to as component (e2)] containing one or more surfactants [hereinafter referred to as component (e)],
(c)/(b), which is the mass ratio of the content of component (c) to the content of component (b), is 1.0 or more;
A foaming detergent composition, wherein (e)/(b), which is the mass ratio of the content of component (e) to the content of component (b), is 0.5 or less.

<2>
(a) The foaming detergent composition according to <1>, wherein the component (a) is preferably an alkali metal hydroxide, more preferably sodium hydroxide and/or potassium hydroxide, still more preferably potassium hydroxide.

<3>
When the component (a) contains an alkali metal hydroxide, the concentration of the alkali metal hydroxide in the component (a) is preferably 50% by mass or more, more preferably 70% by mass or more, and still more preferably The foaming detergent composition according to <1> or <2>, which is 90% by mass or more and 100% by mass.

<4>
Component (a) contains an alkali metal silicate [hereinafter referred to as component (a-1)], preferably one or more alkali metal silicates selected from sodium orthosilicate, sodium metasilicate and sodium sesquisilicate. The foaming detergent composition according to any one of <1> to <3>, comprising:

<5>
The content of component (a-1) in component (a) is preferably 10% by mass or less, more preferably 5% by mass or less, even more preferably 1% by mass or less, and even more preferably 0.5% by mass or less. The foaming detergent composition according to <4>.

<6>
The foaming detergent composition according to any one of <1> to <5>, wherein the hydrocarbon group having 11 to 24 carbon atoms in component (b) is a secondary alkyl group.

<7>
Component (b) is a secondary alkanesulfonate in which a sulfonic acid group is bonded to the secondary carbon atom of the alkyl group, and the secondary carbon atom of the linear alkyl group is bonded to the benzene ring, which is bonded to the benzene ring. <1> to < which is one or more compounds selected from straight-chain alkylbenzenesulfonates in which a sulfonic acid group is bonded to a straight-chain alkyl group at the para-position (hereinafter referred to as a straight-chain alkylbenzenesulfonate) 6> The foaming detergent composition according to any one of items 6>.

<8>
Component (c) consists of (c1) an alkylbenzenesulfonic acid substituted with 1 to 3 alkyl groups having 1 to 3 carbon atoms and a salt thereof [hereinafter referred to as component (c1)], and (c2) 5 or more carbon atoms. Fatty acid having 10 or less hydrocarbon groups and salts thereof [hereinafter referred to as component (c2)], and (c3) amine oxide having a hydrocarbon group having 5 to 10 carbon atoms [hereinafter referred to as component (c3)] The foaming detergent composition according to any one of <1> to <7>, which is one or more selected compounds.

<9>
The foaming detergent composition according to <8>, wherein component (c) is preferably one or more selected from (c2) and (c3), more preferably component (c2).

<10>
The foaming detergent composition of the present invention contains (f) a sequestering agent of preferably less than 1% by mass, more preferably 0.5% by mass or less, even more preferably 0.4% by mass or less, and even more preferably 0% by mass. The foaming detergent composition according to any one of <1> to <9>, which contains 0.2% by mass or less, more preferably 0.2% by mass or less, and more than 0% by mass.

<11>
(a)/(b), which is the mass ratio of the content of component (a) to the content of component (b), is preferably 1.5 or less, more preferably 1.2 or less, and still more preferably 1.0 The foaming detergent composition according to any one of <1> to <10>, which is more preferably 0.8 or less, and preferably greater than 0.

<12>
When the foaming cleaning composition of the present invention contains the (e) component, the foaming cleaning composition of the present invention preferably contains the (e) component in an amount of preferably 10% by mass or less, more preferably 7% by mass or less, and further The foaming according to any one of <1> to <11>, which preferably contains 5% by mass or less, more preferably less than 2% by mass, still more preferably 0.1% by mass or less, and more than 0% by mass. cleaning composition.

<13>
When the component (b) contains an alkanesulfonic acid or a salt thereof, the content of the component (e1) in the foaming detergent composition of the present invention is preferably 0.2% by mass or less, more preferably 0.1% by mass. % or less, more preferably 0.05 mass % or less, and more than 0 mass %, according to any one of <1> to <11>.

<14>
The pH of the foaming detergent composition of the present invention at 25° C. is preferably 12.5 or higher, more preferably 12.8 or higher, still more preferably 13.0 or higher, and even more preferably 13.2 or higher. 14 or less, the foaming detergent composition according to any one of <1> to <13>.

<15>
In use, the hardness is preferably 0.1° DH or more, more preferably 0.2° DH or more, still more preferably 0.3° DH or more, still more preferably 0.5° DH or more, and even more preferably 1° DH or more, more preferably 2° DH or more, and preferably 20° DH or less, more preferably 10° DH or less, even more preferably 8° DH or less, even more preferably 6° DH or less. The foaming detergent composition according to any one of <1> to <14>, which is used after being diluted with water.

<16>
(a) an alkali agent [hereinafter referred to as component (a)] of 1.0% by mass or more and 15% by mass or less; ) component] is 1.0% by mass or more and 10% by mass or less, and (c) a surfactant having a hydrocarbon group having 5 to 10 carbon atoms [hereinafter referred to as component (c)] is 4% by mass or more and 30% by mass. 0.001% by mass or more and 1.0% by mass or less, and optionally (e) an amine oxide having a hydrocarbon group of 11 to 18 carbon atoms [hereinafter referred to as component (e1)] and an anionic surfactant having a hydrocarbon group of 12 to 18 carbon atoms [however, component (b) and (d) excluding those corresponding to the component] [hereinafter referred to as the (e2) component] [hereinafter referred to as the (e) component], the content of the (c) component and (c)/(b), which is the mass ratio of the content of component (b), is 1.0 or more, and (e) is the mass ratio of the content of component (e) to the content of component (b) A method for cleaning a hard surface, comprising foaming a mixture in which /(b) is 0.5 or less and bringing the mixture into contact with the hard surface.

<17>
The mixture is a mixture obtained by mixing component (a), component (b), component (c), component (d), optionally component (e), and water, <16 > cleaning method for hard surfaces.

<18>
<16> or <17>, wherein the mixture obtained by mixing the foaming detergent composition according to any one of <1> to <15> and water is foamed and brought into contact with a hard surface. method for cleaning hard surfaces.

<19>
The method for cleaning a hard surface according to any one of <16> to <18>, which is a method for cleaning food processing equipment and/or cooking equipment, including steps 1 to 3 below.
Step 1: Pre-diluting and/or diluting the foaming detergent composition according to any one of <1> to <15> with water at a dilution ratio of 2 to 200 times (preferably 5 to 200 times) Step 2: Hold the foam for a certain period of time Step 3: Rinse the food processing equipment and / or cooking equipment with water

<20>
The water is water containing a hardness component, and the hardness of the water is preferably 0.1° DH or higher, more preferably 0.2° DH or higher, still more preferably 0.3° DH or higher, and still more preferably 0.3° DH or higher. preferably 0.5° DH or more, even more preferably 1° DH or more, still more preferably 2° DH or more, and preferably 20° DH or less, more preferably 10° DH or less, even more preferably 8 The method for cleaning a hard surface according to any one of <17> to <19>, wherein the cleaning temperature is 6° DH or less, more preferably 6° DH or less.

<21>
The diluted solution of the foaming cleaning composition of the present invention obtained by diluting the foaming cleaning composition according to any one of <1> to <15> with water has a pH at 25°C of preferably 12.0 or more, more preferably. is 12.2 or more, more preferably 12.4 or more, and preferably 13.5 or less, more preferably 13.0 or less, still more preferably 12.8 or less, described in <19> or <20> method for cleaning hard surfaces.

Examples <Examples 1 to 11 and Comparative Examples 1 to 9>
A foaming detergent composition containing the following components (a) to (e) and (g) in the proportions shown in Table 1 was prepared, and the following uniform solubility, detergency, aluminum corrosion resistance, and rinsability were evaluated. .

<(a) component>
・KOH: Potassium hydroxide (manufactured by Toagosei Co., Ltd.)
<(b) component>
・SAS: sodium secondary alkanesulfonate having 14 to 17 carbon atoms (Latemul PS, manufactured by Kao Corporation)
・ LAS: sodium dodecylbenzenesulfonate (Neopelex G-25, manufactured by Kao Corporation)
<(c) component>
・ (c1) pTS-K: potassium paratoluenesulfonate (manufactured by Meiyu Sangyo Co., Ltd.)
(c2) C8FA-K: potassium salt of caprylic acid (Lunac 8-98 (E), manufactured by Kao Corporation) (c3) C8AO: amine oxide having a hydrocarbon group with 8 carbon atoms (Amphitol 08N, Kao manufactured by Co., Ltd.)
<(d) component>
・C20 isoarachidic acid-K (also referred to as potassium isoicosanoate): potassium hydroxide neutralized product of isoarachidic acid EC (manufactured by Nissan Chemical Industries, Ltd.), a compound represented by the following general formula (d1) ・C18 isostearic acid- K: a mixture of a potassium hydroxide neutralized product of isostearic acid T (manufactured by Nissan Chemical Industries, Ltd.), a compound represented by the following general formula (d2), and a compound represented by (d3)

<(e) component>
- (e1) C14AO: amine oxide having a hydrocarbon group with 14 carbon atoms (Amphitol 40N, manufactured by Kao Corporation)
・ (e2) C12AS: Sodium lauryl sulfate (Emal 0, manufactured by Kao Corporation)
<(g) component>
・ Sodium hypochlorite: Sodium hypochlorite (manufactured by Tosoh Corporation)

(1) Method for producing a foaming detergent composition A stirrer piece and purified water are placed in a beaker, and while stirring the purified water, components (b) and (c), and optionally components (d) and ( e) Ingredients were added. Next, the component (a) was added to this mixture, and the mixture was stirred until it reached room temperature. After the temperature of the mixture reached room temperature, the component (g) was added as necessary and stirred to produce a foaming detergent composition. The foaming detergent compositions of Examples had a pH of 12.8 at 25°C in Example 10, and all others had a pH of 13.2 or higher at 25°C.

(2) Method for evaluating uniform solution property (stability) The foaming detergent composition produced in (1) above was visually observed. A sample that was uniformly dissolved was rated as ◯. In addition, x indicates that the sample was completely separated. If the foaming cleanser composition became cloudy or precipitated, it was noted in the table.

(3) Detergency evaluation method (3-1) Preparation of test piece A stainless steel 304 plate (1.0 × 30 × 80 mm) whose weight was measured in advance was used to measure the mass ratio of rapeseed oil and beef tallow (rapeseed oil 3 mL of a hexane solution containing 5:3 of beef tallow) was applied. After that, it was dried for 20 hours to prepare a test piece to which dirt adhered. The weight of the soiled test piece was measured, and the "applied oil amount" was calculated based on the amount increased from the weight of the stainless steel 304 plate, which had been weighed in advance.
(3-2) Cleaning of Test Piece The foaming detergent composition in Table 1 was diluted with 4° DH hard water to prepare a 5% by mass aqueous solution of the foaming detergent composition. Using a hand foamer, apply this aqueous solution to the test piece with the dirt attached in a foam shape twice, hold it for 10 minutes, put 700 mL of tap water in a 1 L beaker, rinse for 1 minute with a Lie-Nuts tester, and dry. did After drying, the weight of the test piece was measured, and the "remaining oil amount" was calculated based on the weight increase from the weight of the stainless steel 304 plate before staining.
From the above "applied oil amount" and "residual oil amount", the cleaning rate (%) was calculated based on the following formula. It can be said that the higher the detergency, the better the detergency of the composition.
Cleaning rate (%) = 100 x [(amount of applied oil) - (amount of residual oil)]/(amount of applied oil)

(4) Evaluation Method for Aluminum Corrosion Resistance The foaming detergent composition in Table 1 was diluted with 4° DH hard water to prepare a 1% by mass aqueous solution of the foaming detergent composition.
This aqueous solution is placed in a standard bottle No. 20 mL was added to 6, an alumite test piece (1.0×20×50 mm) was immersed for 60 minutes, and the appearance of the alumite test piece after immersion was evaluated. A case where no change was observed in the appearance of the alumite test piece was evaluated as ◯, and a case where a change was observed as X.

(5) Method for evaluating rinsability The foaming detergent composition in Table 1 was diluted with ion-exchanged water to prepare a 5% by mass aqueous solution of the foaming detergent composition.
Using a hand former, a 5% by mass aqueous solution of the foaming detergent composition was sprayed once (1 g) into a 200 mL measuring cylinder in a foamy state, and then using a washing bottle, 100 mL of deionized water was poured into the measuring cylinder. The amount of foam (mL) when it was added was measured.

"-" in the table means that the rinsability was not evaluated.
Also, in Comparative Example 7, no foam was formed even with a hand foamer.

Claims

(a) 1.0% by mass or more and 15% by mass or less of an alkali agent [hereinafter referred to as component (a)];
(b) 1.0 to 10% by mass of a sulfonic acid-based surfactant having a hydrocarbon group having 11 to 24 carbon atoms [hereinafter referred to as component (b)];
(c) 4% to 30% by mass of a surfactant having a hydrocarbon group having 5 to 10 carbon atoms [hereinafter referred to as component (c)];
(d) 0.001% by mass or more and 1.0% by mass or less of a branched fatty acid having a branched hydrocarbon group with 12 to 26 carbon atoms and/or a salt thereof [hereinafter referred to as component (d)], and optionally (e ) An amine oxide having a hydrocarbon group having 11 to 18 carbon atoms [hereinafter referred to as component (e1)] and an anionic surfactant having a hydrocarbon group having 12 to 18 carbon atoms [however, component (b) and ( d) excluding those corresponding to components] [hereinafter referred to as component (e2)] containing one or more surfactants [hereinafter referred to as component (e)],
(c)/(b), which is the mass ratio of the content of component (c) to the content of component (b), is 1.0 or more;
(e)/(b), which is the mass ratio of the content of component (e) to the content of component (b), is 0.5 or less;
A foaming cleanser composition.
The foaming detergent composition according to claim 1, wherein the mass ratio (a)/(b) of the content of component (a) to the content of component (b) is 1.5 or less.
The component (c) is (c1) an alkylbenzenesulfonic acid substituted with 1 to 3 alkyl groups having 1 to 3 carbon atoms and a salt thereof, and (c2) a fatty acid having a hydrocarbon group having 5 to 10 carbon atoms. and salts thereof, and (c3) an amine oxide having a hydrocarbon group having 5 to 10 carbon atoms.
The foaming detergent composition according to any one of claims 1 to 3, wherein the hydrocarbon group having 11 to 24 carbon atoms in component (b) is a secondary alkyl group.
5. The foaming detergent composition according to any one of claims 1 to 4, wherein when the component (b) contains an alkanesulfonic acid or a salt thereof, the content of the component (e1) is 0.2% by mass or less. .
The foaming detergent composition according to any one of claims 1 to 5, wherein the foaming detergent composition has a pH of 12.5 or higher at 25°C.
(a) an alkali agent [hereinafter referred to as component (a)] of 1.0% by mass or more and 15% by mass or less; ) component] is 1.0% by mass or more and 10% by mass or less, and (c) a surfactant having a hydrocarbon group having 5 to 10 carbon atoms [hereinafter referred to as component (c)] is 4% by mass or more and 30% by mass. 0.001% by mass or more and 1.0% by mass or less, and optionally (e) an amine oxide having a hydrocarbon group of 11 to 18 carbon atoms [hereinafter referred to as component (e1)] and an anionic surfactant having a hydrocarbon group of 12 to 18 carbon atoms [however, component (b) and (d) excluding those corresponding to the component] [hereinafter referred to as the (e2) component] [hereinafter referred to as the (e) component], the content of the (c) component and (c)/(b), which is the mass ratio of the content of component (b), is 1.0 or more, and (e) is the mass ratio of the content of component (e) to the content of component (b) A method for cleaning a hard surface, comprising foaming a mixture in which /(b) is 0.5 or less and bringing the mixture into contact with the hard surface.
The mixture is a mixture obtained by mixing component (a), component (b), component (c), component (d), optionally component (e), and water. 8. The method for cleaning a hard surface according to 7.
The method for cleaning a hard surface according to claim 8, wherein the water has a hardness of 1° DH or more and 20° DH or less.
10. The mixture obtained by mixing the foaming detergent composition according to any one of claims 1 to 6 with water is foamed and brought into contact with a hard surface. A method for cleaning a hard surface as described in Item.