JP7262333B2 - Method for cleaning hard articles - Google Patents

Description

TECHNICAL FIELD The present invention relates to a method for cleaning hard articles, in particular to a method for cleaning tableware and/or hard articles around the kitchen, and to a liquid detergent composition for foam application.

For washing tableware and cooking utensils, a method of soaking a dishwashing detergent in a sponge or the like containing water and lathering while kneading several times is generally performed to scrub the object. This method was thought to be necessary for removing stubborn stains such as food-derived oil stains, but it was inconvenient when cleaning containers and utensils with deep gaps where sponges cannot reach. In order to solve such inconveniences, a technique has been developed in which a foamy dishwashing detergent is applied to an object, and the object has high detergency by simply rinsing after leaving it for a certain period of time without rubbing. That is, instead of the conventional method of scrubbing with a sponge, a method of spraying foam and leaving it to stand for washing without rubbing has been proposed. Patent Literature 1 and Patent Literature 2 propose a cleaning method in which a liquid detergent composition is brought into contact with a hard surface with foam having a specific foam specific volume, and then left to stand without applying mechanical force. Further, Patent Documents 3 and 4 describe techniques for applying a composition containing a nonionic surfactant and a glycol ether to a hard surface such as tableware using a trigger type injector or the like.
On the other hand, Patent Literature 5 discloses a technique for hand-washing dishwashing detergent compositions containing surfactants, enzymes, inorganic salts and carboxylates.

JP 2016-199754 A JP 2016-198765 A Special Table 2018-522116, Japanese Patent Publication No. 2018-524453 Japanese Patent Publication No. 2018-517820

The use of enzymes is also considered useful for effectively cleaning food-derived stains. However, in a mode in which soiled tableware or the like is left in contact with the cleaning agent and then left to wash without applying external force, it is difficult to fully exhibit the effect of the enzyme in a short-time treatment.
It is also desired that the enzyme-blended liquid detergent composition has excellent composition stability and good foam characteristics when applied to an object with foam.

The present invention provides a cleaning method for hard articles that provides excellent cleaning power even in a mode in which soiled tableware or the like is brought into contact with a cleaning agent and then left to stand without applying an external force, and such an effect. To provide a liquid detergent composition for foam coating, which has excellent storage stability and foam properties.

The present invention comprises (a) a surfactant [hereinafter referred to as component (a)] of 0.1% by mass or more and 15% by mass or less, and (b) an enzyme [hereinafter referred to as component (b)] of 1 ppm or more as an enzyme protein. 1000 ppm or less, and at least one of (c) inorganic salt [hereinafter referred to as component (c)] and (d) carboxylate [hereinafter referred to as component (d)], and the content of component (a) and ( A liquid detergent composition in which the mass ratio (a)/[(c)+(d)] to the contents of components c) and (d) is 0.1 or more and 10 or less, without diluting The present invention relates to a method for cleaning a hard article, comprising contacting the hard article to which dirt containing liquid oil is adhered, leaving the article to stand without applying external force, and then rinsing the article with water.

In addition, the present invention includes (a) a surfactant [hereinafter referred to as component (a)] of 0.1% by mass or more and 15% by mass or less, and (b) an enzyme [hereinafter referred to as component (b)] as an enzyme protein. 1 ppm or more and 1000 ppm or less, and at least one of (c) inorganic salt [hereinafter referred to as component (c)] and (d) carboxylate [hereinafter referred to as component (d)], and the content of component (a) and (a)/[(c)+(d)], which is the mass ratio of the content of component (c) and component (d), is 0.1 or more and 10 or less. Regarding.

According to the present invention, there is provided a cleaning method for hard articles which can obtain excellent cleaning power even in a mode in which soiled tableware or the like is brought into contact with a cleaning agent and then left to stand without applying an external force for cleaning, as well as such a cleaning method. A liquid detergent composition for foam application is provided which is effective and has excellent storage stability and foam properties.

<Method for cleaning hard articles>
The method for cleaning hard articles of the present invention comprises component (a) of 0.1% by mass or more and 15% by mass or less, component (b) of 1 ppm or more and 500 ppm or less as an enzyme protein, and components (c) and (d). It contains at least one, and (a)/[(c)+(d)], which is the mass ratio of the content of component (a) to the content of components (c) and (d), is 0.1 or more 10 or less liquid detergent composition, without dilution, is brought into contact with the soiled hard article containing the liquid oil, allowed to stand without applying an external force, and then rinsed with water.
First, the liquid detergent composition will be described as the liquid detergent composition of the present invention.

(a) Component is a surfactant.
The liquid detergent composition of the present invention contains, as component (a), at least one of an anionic surfactant [hereinafter referred to as component (a1)] and a nonionic surfactant [hereinafter referred to as component (a2)]. and preferably contains an amphoteric surfactant [hereinafter referred to as component (a3)]. The liquid detergent composition of the present invention more preferably contains (a1) component and (a3) component as component (a).

(a1) Component anionic surfactants include alkylarylsulfonic acid-type surfactants, sulfate ester-type surfactants, alkanesulfonic acid-type surfactants, olefinsulfonic acid-type surfactants, and sulfosuccinic acid alkyl ester-type surfactants. One or more anionic surfactants selected from surfactants and sulfo fatty acid ester surfactants are preferred.

Alkyl benzene sulfonate is mentioned as an alkyl aryl sulfonic-acid-type surfactant. Specific examples include alkylbenzenesulfonates having an alkyl group having 6 or more carbon atoms, preferably 8 or more carbon atoms, and 18 or less, preferably 15 or less carbon atoms.

Examples of sulfate ester surfactants include anionic surfactants having a hydrocarbon group having 8 to 20 carbon atoms and a sulfate ester group. From the viewpoint of detergency, the hydrocarbon group has 8 or more carbon atoms, preferably 10 or more, more preferably 12 or more, and 20 or less, preferably 18 or less, more preferably 14 or less, and still more preferably 12 or less. be. The hydrocarbon group is preferably an alkyl group.
Examples of sulfate type surfactants include alkyl sulfates and polyoxyalkylene alkyl ether sulfates.
The alkyl sulfate ester salt includes an alkyl group having 8 or more carbon atoms, preferably 10 or more carbon atoms, and 20 or less, preferably 18 or less, more preferably 14 or less, and still more preferably 12 or less carbon atoms. Alkyl sulfate salts with alkyl groups are preferred.

The polyoxyalkylene alkyl ether sulfate salt includes an alkyl group having 8 or more carbon atoms, preferably 10 or more carbon atoms, and 20 or less, preferably 18 or less, more preferably 14 or less, and still more preferably 12 or less, further linear or The average number of added moles of oxyalkylene groups having a branched alkyl group and having 2 to 3 carbon atoms 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 or less, and still more preferably 1.5 or less, are suitable polyoxyalkylene alkyl ether sulfate ester salts. The oxyalkylene group preferably has 2 carbon atoms.

Examples of alkanesulfonic acid-type surfactants include alkanesulfonates in which the number of carbon atoms in the alkane moiety is 8 or more, preferably 10 or more, more preferably 14 or more, and 20 or less, preferably 18 or less.

Olefinsulfonic acid type surfactants include α-olefinsulfonates and internal olefinsulfonates. The α-olefin sulfonate has 8 or more, preferably 10 or more, more preferably 14 or more carbon atoms in the olefin moiety and 22 or less, preferably 20 or less, more preferably 18 or less carbon atoms. In the internal olefin sulfonate, the number of carbon atoms in the olefin portion is 8 or more, preferably 12 or more, more preferably 16 or more, and 24 or less, preferably 20 or less, more preferably 18 or less.

As the sulfosuccinic acid alkyl ester surfactant, a fatty alcohol having 5 or more carbon atoms, preferably 6 or more carbon atoms, more preferably 7 or more carbon atoms, and 18 or less, preferably 14 or less, more preferably 10 or less carbon atoms and sulfosuccinic acid. Esters and/or diesters, preferably diesters, are preferred. Moreover, branched alcohols are suitable for fatty alcohols from the point of detergency.

The sulfo-fatty acid ester-type surfactant includes an α-sulfo fatty acid salt having a fatty acid moiety with 10 to 18 carbon atoms, a fatty acid moiety having 10 to 18 carbon atoms, and an ester moiety having 1 to 5 carbon atoms. and α-sulfo fatty acid lower alkyl ester salt.

Component (a1) includes a diester of a fatty alcohol having 5 to 18 carbon atoms and sulfosuccinic acid, an alkylbenzene sulfonate having an alkyl group having 8 to 18 carbon atoms, and an alkanesulfonic acid having 10 to 18 carbon atoms. One or more anionic surfactants selected from salts and alkyl sulfate salts having 8 to 18 carbon atoms are preferred.

The nonionic surfactant of component (a2) is one or more nonionic surfactants selected from alkyl glycoside nonionic surfactants, alkyl ether nonionic surfactants, and alkyl glyceryl ether surfactants. agents. As the nonionic surfactant as component (a2), one or more nonionic surfactants selected from alkyl glycoside nonionic surfactants are preferable.

More specifically, component (a2) contains (a2-1) an alkyl glycoside-type nonionic surfactant having an alkyl group with 8 to 18 carbon atoms [hereinafter referred to as component (a2-1)]. is preferred. The alkyl group of component (a2-1) preferably has 8 or more carbon atoms, more preferably 10 or more carbon atoms, and preferably 18 or less carbon atoms, more preferably 16 or less carbon atoms, and still more preferably 14 or less carbon atoms. The average degree of condensation is 1 or more and 3 or less, preferably 1 or more and 2 or less, more preferably 1 or more and 1.5 or less. Component (a2-1) is an alkyl glycoside type nonionic surfactant having an alkyl group having 10 or more and 18 or less carbon atoms.

Further, as the component (a2), (a2-2) an alkyl group having 9 to 18 carbon atoms, preferably a branched fatty alcohol or secondary fatty alcohol having 9 to 15 carbon atoms, and an alkylene having 2 or 3 carbon atoms. A nonionic surfactant to which an oxide, preferably ethylene oxide, is added on average from 3 mol to 30 mol, preferably from 3 mol to 20 mol, more preferably from 3 mol to 15 mol [hereinafter, component (a2-2) ] is mentioned.

Further, as the component (a2), (a2-3) an alkyl glyceryl ether type having one alkyl group having 8 to 18 carbon atoms, preferably 8 to 14 carbon atoms, more preferably 8 to 12 carbon atoms Surfactants [hereinafter referred to as component (a2-3)] can be mentioned. The alkyl group of component (a2-3) is preferably a branched chain alkyl group having 8 or more and 12 or less carbon atoms.

Further, as the component (a2), (a2-4) a linear fatty alcohol having 8 to 18 carbon atoms, preferably 14 or less, and oxyalkylene having 2 or 3 carbon atoms, preferably oxyethylene group, on average 3 mol or more. , preferably 5 mol or more, and 20 mol or less, preferably 15 mol or less, added polyoxyalkylene alkyl ether [hereinafter referred to as component (a2-4)].

(a3) Component amphoteric surfactants include one or more amphoteric surfactants selected from amine oxide surfactants and betaine surfactants. More specifically, component (a3) includes one or more surfactants selected from tertiary amine oxide surfactants, sulfobetaine surfactants and carbobetaine surfactants.

As the tertiary amine oxide surfactant, one of the groups bonded to the nitrogen atom may be an alkyl group having 8 to 18 carbon atoms which may be divided by an amide group or an ester group, preferably an alkyl group having 8 to 16 carbon atoms. Examples include the following alkyl groups, more preferably alkyl groups having 8 to 14 carbon atoms, the remainder being alkyl groups having 1 to 3 carbon atoms, preferably methyl groups, tertiary amine oxide surfactants.

As the sulfobetaine surfactant, one alkyl group having 10 or more carbon atoms and 18 or less, preferably 16 or less, more preferably 14 or less carbon atoms and an alkyl group having 1 or more and 3 or less carbon atoms, preferably a methyl group and a 3-sulfopropyl group or a 2-hydroxy-3-sulfopropyl group are preferred.

Further, as the carbobetaine-type surfactant, one alkyl group having 10 or more carbon atoms and 18 or less, preferably 16 or less, more preferably 14 or less carbon atoms which may be divided by an amide group or an ester group, and Carbobetaine-type surfactants having two alkyl groups, preferably methyl groups, and one carboxyalkyl group, preferably carboxymethyl group, having 1 to 3 carbon atoms are preferred.

In component (a), the total proportion of component (a1) and component (a2) is preferably 10% by mass or more, more preferably 20% by mass or more, still more preferably 30% by mass or more, and preferably 90% by mass. % or less, more preferably 80 mass % or less from the viewpoint of detergency.

The ratio of component (a1) in component (a) is preferably 10% by mass or more, more preferably 20% by mass or more, and preferably 90% by mass or less, more preferably 80% by mass or less from the viewpoint of detergency. preferred from

[(a1)+(a2)]/(a3), which is the mass ratio of the total content of components (a1) and (a2) to the content of component (a3), is preferably 0.1 or more. , more preferably 0.2 or more, still more preferably 0.3 or more, and preferably 10 or less, more preferably 5 or less, still more preferably 3 or less, from the viewpoint of detergency.

(a1)/(a3), which is the mass ratio of the content of component (a1) to the content of component (a3), is preferably 0.1 or more, more preferably 0.2 or more, and still more preferably 0 3 or more, preferably 10 or less, more preferably 5 or less, and still more preferably 3 or less are preferable from the viewpoint of detergency.

From the viewpoint of detergency and storage stability, the liquid detergent composition of the present invention contains component (a) in an amount of 0.1% by mass or more, preferably 0.3% by mass or more, and more preferably 0.5% by mass or more. , and 15% by mass or less, preferably 11% by mass or less, more preferably 10% by mass or less, even more preferably 8% by mass or less, and even more preferably 5.0% by mass or less.

The (b) component is an enzyme.
Component (b) includes one or more enzymes selected from lipase, amylase, and protease.

As a lipase, E. C. 3.1.1.3 triacylglycerol lipase, E. C. 3.1.1.13 cholesterol esterase, E. C. 3.1.23 monoacylglycerol lipase, E. C. Lipoprotein lipases of 3.1.1.34 are preferred. Although the origin of the lipase is not limited, animal-derived, plant-derived, or microbial-derived lipases may be mentioned. Examples of lipases derived from microorganisms include the genus Rhizopus, the genus Aspergillus, the genus Mucor, the genus Pseudomonas, the genus Geotrichum, the genus Penicillium and the genus Candida. origin.
The (b) component lipases are Lipase A "Amano" 6, Lipase AY "Amano" 30SD, Lipase GS "Amano" 250G, Lipase R "Amano", Lipase DF "Amano" 15, Lipase MER "Amano" (the above, Amano Enzyme Co., Ltd.), Olipase (Nagase & Co., Ltd.), Lipase MY, Lipase OF, Lipase PL, Lipase PLC, Lipase QLM, Lipase QLC, Phospholipase D (manufactured by Meito Sangyo Co., Ltd.), Lipo Protein Lipase (manufactured by Oriental Yeast Co., Ltd.), Lipase (manufactured by Toyo Jozo Co., Ltd.), Lipex, Lipolase, Lipase SP-225 (manufactured by Novozymes), Lipase (manufactured by Gist), Lipase A, Lipase B (above, Commercially available products such as those manufactured by Sapporo Breweries Ltd. can be used.
In the present invention, Lipex and Lipolase (both manufactured by Novozymes) are suitable.

Proteases include proteases that can act in neutral or alkaline aqueous solutions. Specific examples of preferred proteases include alkaline proteases described in WO 99/018218, preferably those in which 70% or more of the amino acid sequence shown in SEQ ID NO: 1 or 2 is conserved. The alkaline protease described in JP-A-5-25492, preferably alkaline protease K-16 or alkaline protease K-14. In addition, it is sold under the trade names of Savinase (registered trademark), Kannase (registered trademark), Evarase (registered trademark), Alcalase (registered trademark), Polarzyme (registered trademark), and Esperase (registered trademark) manufactured by Novozymes. Proteases produced by Bacillus subtilisins, supplied by DuPont under the trade names FN2 (registered trademark), FN3 (registered trademark) and FN4 (registered trademark), Plafect (registered trademark), and Plafect Prime (registered trademark). proteases or variants thereof, and the like. Among these, enzymes in which 80% or more of the amino acid sequence represented by SEQ ID NO: 1 or 2 described in WO 99/018218 is conserved, Novozymes Savinase, Everase, Alcalase, Progress, Plafect and Plafect Prime manufactured by DuPont are more preferred.

Amylases include Bacillus subtilis Marburg, Bacillus subtilis natto, Bacillus amyloliquefaciens, Bacillus licheniformis, Bacillus cereus, Bacillus macerans. macerans, Pseudomonastutzeri, Klebusiella aerogenes, actinomycetes such as Streptomyces griseus, fungi such as Aspergillus oryzae and Aspergillus niger, rice Seeds of family and legumes, and digestive glands of animals such as humans and pigs can be used. The amylase used in the present invention is a host cell or the like transformed with a recombinant vector having a DNA sequence encoding the above-mentioned microorganisms or their mutant strains, or these enzymes or their mutants. The enzyme can be obtained by inoculating it in a medium containing the source and other essential nutrients, culturing it in a conventional manner, and following a general method of collecting and purifying the enzyme. The enzyme solution obtained in this way can be used as it is, but it can also be used after purification, crystallization, powder preparation or liquid preparation by a known method. The amylase used in the present invention is preferably α-amylase. Examples of commercially available amylases that can be used include Rapidase (trade name) (manufactured by Gistbrokers), Termamyl, Duramil and Stainzyme (trade names) (manufactured by Novozymes Japan), Amplify (manufactured by Novozymes), Plaster ST and Plaster OxAm (trade names). (manufactured by Genencore International).

The component (b) is preferably lipase from the viewpoint of detergency. The liquid detergent composition of the present invention preferably contains lipase as component (b).

The liquid detergent composition of the present invention contains 1 ppm or more and 1000 ppm or less of the component (b) as an enzyme protein. The content of component (b) in the composition, as an enzyme protein, is preferably 5 ppm or more, more preferably 10 ppm or more, from the viewpoint of detergency, and is preferably 800 ppm or less, more preferably 600 ppm or less, and further Preferably, 300 ppm or less is preferred from the point of view of economy. The enzyme protein of the component (b) is quantified according to the standard assay method using Protein Assay Kit II (catalog number 500-0002) manufactured by Bio-Rad, using the bovine serum albumin attached to the kit as the standard protein. can be done.

(c) Component is an inorganic salt. As the inorganic salt of the component (c), one or more selected from inorganic alkali metal salts, inorganic alkaline earth metal salts and salts of elements of Groups 8 to 12 of the fourth period can be used.
As the component (c), one or more selected from chlorides, sulfates, carbonates and sulfites is suitable.
Component (c) is selected from lithium, sodium and potassium as alkali metals, magnesium and calcium as alkaline earth metals, and iron, copper and zinc as elements of groups 8 to 12 of the fourth period. One or more salts can be used.
Component (c) is more preferably one or more selected from sodium chloride, calcium chloride, and potassium chloride.

The liquid detergent composition of the present invention preferably contains component (c) in an amount of 0.1% by mass or more, more preferably 0.2% by mass or more, and even more preferably 0.5% by mass or more, from the viewpoint of detergency. , and from the viewpoint of storage stability, the content is preferably 10% by mass or less, more preferably 8% by mass or less, and still more preferably 5% by mass or less.

(d) Component is a carboxylate.
As the component (d), one or more selected from carboxylic acid salts having 2 to 10 carbon atoms are preferable.
Component (d) is preferably at least one selected from monovalent carboxylates having 2 to 10 carbon atoms and carboxylates having divalent to tetravalent carboxylates. These carboxylates may be substituted with hydroxyl groups and/or amino groups. Thus, the carboxylate may be a hydroxycarboxylate or an aminocarboxylate.

Examples of monovalent carboxylic acid salts having 2 to 10 carbon atoms include fatty acid salts having 2 to 10 carbon atoms, and straight or branched fatty acid salts having 2 to 10 carbon atoms. Specific examples include acetate, propionic acid, hexanoic acid, octanoic acid, and 2-ethylhexanoic acid. Examples of monovalent hydroxycarboxylic acids having 2 to 10 carbon atoms include lactic acid. Examples of monovalent aminocarboxylic acids having 2 to 10 carbon atoms include amino acids such as glycine.

The number of carbon atoms in the divalent to tetravalent carboxylate is preferably 2 to 10 carbon atoms.
Dihydric carboxylates include succinates, maleates, fumarates, azelates, oxalates. Dihydric hydroxycarboxylates include malate and tartrate. Amino acid salts such as glutamate are preferred as the divalent amino carboxylate.
Trivalent carboxylates include aconitates. Trihydric hydroxycarboxylic acid salts include citrates. Trivalent or tetravalent aminocarboxylates include methylglycinedicarboxylate, glycine dicarboxylate, and ethylenediaminetetraacetate.

The salt of the component (d) is preferably an alkali metal salt or an alkaline earth metal salt, preferably an element of Groups 8 to 12 of the 4th period, specifically sodium salt, potassium salt, calcium salt and zinc salt. One or more selected from can be used.

Component (d) includes fatty acid salts with 2 to 10 carbon atoms, monovalent hydroxycarboxylic acids with 2 to 10 carbon atoms, divalent carboxylic acid salts with 2 to 10 carbon atoms, and 2 to 10 carbon atoms. At least one selected from trivalent hydroxycarboxylates and tetravalent aminocarboxylates having 2 to 10 carbon atoms is preferred.
Component (d) is more preferably one or more selected from acetate, tartrate, lactate, malate, citrate, and ethylenediaminetetraacetate.

The liquid detergent composition of the present invention preferably contains component (d) in an amount of 0.1% by mass or more, more preferably 0.5% by mass or more, even more preferably 0.8% by mass or more, and even more preferably 1 0% by mass or more, preferably 10% by mass or less, more preferably 5.0% by mass or less, and even more preferably 3.0% by mass or less.

The liquid detergent composition of the present invention contains at least one of the component (c) and the component (d), and from the viewpoint of enhancing the enzymatic effect and improving the detergency of the liquid fat, the content of the component (a) and (a)/[(c)+(d)], which is the mass ratio to the contents of components (c) and (d), is 0.1 or more and 10 or less. (a)/[(c)+(d)] is 0.1 or more, preferably 0.2 or more, and preferably 5.0 or less, more preferably 3.0 or less, from the same viewpoint as above. be.

When an enzyme is applied to a liquid detergent containing a surfactant, the action of the surfactant reduces the enzymatic effect. In particular, when anionic surfactants and nonionic surfactants are brought into contact with stains at high concentrations to clean them, the enzymatic effects are not obtained as expected. Although the details of the cause are still unknown, it is presumed that the surfactant adsorbs to the enzyme protein and prevents the enzyme from contacting the substrate. In the present invention, by using the component (c) and/or the component (d) in a specific mass ratio with the component (a), the component (c) and/or the component (d) are unevenly distributed on the surface of the enzyme. As a result, the enzymatic effect is improved and the detergency can be enhanced because the enzyme can effectively contact the substrate. In the present invention, the enzyme effect may mean, for example, the effect of an enzyme on stains containing a substance (substrate) on which the enzyme acts.

The liquid detergent composition of the present invention comprises, as the component (e), a monohydric alcohol having 1 to 3 carbon atoms, a dihydric or trihydric alcohol having 2 to 4 carbon atoms, 0.01% by mass of one or more solubilizers selected from glycol ethers having an alkyl group and benzenesulfonic acid optionally substituted with 1 to 3 hydrocarbon groups having 1 to 3 carbon atoms It is preferable to contain at least Preferred monohydric alcohols are ethanol or isopropanol, and preferred dihydric or trihydric alcohols are ethylene glycol propylene glycol and glycerin. As the benzenesulfonic acid, cumenesulfonic acid, p-toluenesulfonic acid and m-xylenesulfonic acid are preferable.

When the liquid detergent composition of the present invention contains component (e), the composition preferably contains component (e) in an amount of 0.01% by mass or more, more preferably 0.1% by mass or more, and still more preferably 1 0% by mass or more, preferably 15% by mass or less, more preferably 10% by mass or less, and even more preferably 8.0% by mass or less.

The liquid detergent composition of the present invention contains components (a), (b), (c), (d), and optional (e), as well as an anti-gelling agent, polyacrylic acid, and the like. Ingredients such as thickeners, perfumes, dyes, pigments, bactericides, preservatives, and pH adjusters can be contained within limits that do not impair the effects of the present invention.

The liquid detergent composition of the present invention contains water. That is, the rest other than the above components (a) to (d) and optional components is water. The liquid detergent composition of the present invention preferably contains water in an amount of 30% by mass or more, more preferably 50% by mass or more, more preferably 50% by mass or more, more preferably 30% by mass or more, more preferably 50% by mass or more. 60% by mass or more, more preferably 70% by mass or more, still more preferably 80% by mass or more, still more preferably 90% by mass or more, and preferably 99.5% by mass or less, more preferably 99% by mass or less do. As water, it is preferable to use ion-exchanged water, sterilized ion-exchanged water, or the like.

The viscosity at 20° C. of the liquid detergent composition of the present invention is preferably 20 mPa·s or less, more preferably 15 mPa·s or less, even more preferably 10 mPa·s or less, and even more preferably 5 mPa/s or less. The lower limit of this viscosity is preferably 0.5 mPa·s or more, more preferably 1 mPa·s or more. The viscosity can be adjusted with a solvent, hydrotrope agent, or the like. Here, the viscosity is measured by the following method.
[Method for measuring viscosity]
TOKIMEC INC. Rotor number No. is attached to the B-type viscometer model BM manufactured by Prepare the one equipped with the rotor of 1. A beaker for viscosity measurement is filled with the liquid detergent composition to be measured, and the temperature is sufficiently adjusted in a constant temperature water bath at 20°C. A beaker containing the composition is set in a viscometer, and the value measured after 60 seconds at a rotor rotation speed of 60 r/min is taken as the viscosity of the composition.

The liquid detergent composition of the present invention has a pH of preferably 4 or higher, more preferably 5 or higher, still more preferably 6 or higher, still more preferably 7 or higher, and preferably 11 or lower, more preferably 10 or lower. More preferably, it is 9 or less. This pH is the pH at the temperature during washing, but may be the pH at 20°C. In addition, pH can be measured by a glass electrode method.

The method for cleaning a hard article of the present invention comprises bringing the liquid detergent composition of the present invention into contact with a hard article to which stains containing liquid oil, such as a mixture of liquid oil and solid fat, are attached without dilution, This is a cleaning method of rinsing with water after leaving without applying external force. This method is suitable for cleaning hard-to-reach areas and hard-to-reach areas. The liquid detergent composition of the present invention is preferably brought into contact with the hard article in the form of foam having a foam specific volume of 2 mL/g or more without being diluted.

When the liquid detergent composition of the present invention is brought into contact with dirt containing liquid oil, the liquid oil is finely divided and separated from the object (hard article) so as to float. Therefore, in the cleaning method of the present invention, the liquid oil can be easily cleaned by, for example, rinsing the object with water after leaving the object for a predetermined time without applying an external force such as rubbing.

In the cleaning method of the present invention, it is preferred that the liquid cleaning composition is brought into contact with a hard article having dirt containing liquid oil in a foam state without being diluted, and rinsed without being rubbed.
In the cleaning method of the present invention, the liquid cleaning composition is made into a foam without being diluted, and brought into contact with, for example, a hard article to which oil stains containing liquid oil are adhered, and cleaned without applying an external force such as a mechanical force. After that, it is preferable to rinse with water.
In the cleaning method of the present invention, the liquid cleaning composition is made into foam without dilution, brought into contact with, for example, a hard article to which oily stains containing liquid oil are adhered, and allowed to stand without applying external force such as mechanical force. It is preferable to rinse with water after washing with
Cleaning a hard article without applying an external force such as a mechanical force means, for example, not performing an operation of intentionally applying an external force for cleaning to the object other than contact with the composition. For example, if the composition in contact naturally flows down the surface of the hard article, or if vibrations that are not intended for cleaning are transmitted to the hard article, the hard article should be washed without external force such as mechanical force. Then you can understand.
Bringing the liquid detergent composition into contact with a soiled hard article containing liquid oil without dilution means that the detergent composition is intentionally diluted with water or the like, and then the liquid oil is contained. Avoid contact with contaminated hard articles. For example, when the liquid detergent composition is brought into contact with a hard article on which water droplets or the like are attached, or when water droplets adhere to the hard article after the liquid detergent composition is brought into contact with the hard article, the liquid It can be understood that the cleaning composition is contacted undiluted with the soiled hard article containing the liquid oil.
After standing, rinse the hard article with water. When rinsing, an external force (physical force) may be applied by a hand or the like, or simply rinsed with a stream of water.
As the cleaning method of the present invention, the liquid cleaning composition is made into a foam and brought into contact with a hard article to which dirt containing liquid oil is adhered, cleaning with a flexible material, cleaning with running water, and cleaning with ultrasonic waves. There is a washing method of rinsing with water after leaving as it is without applying external force such as mechanical force without performing any washing. That is, as the cleaning method of the present invention, the liquid detergent composition is made into a foam and brought into contact with a hard article to which dirt containing liquid oil is adhered, and the frictional force of a flexible material such as a sponge and the automatic tableware is removed. There is a washing method in which the cloth is left as it is without applying an external force such as a mechanical force, and then rinsed with water.

A soil containing liquid oil may be a composite soil comprising liquid oil and solid fat. Solid fat exhibits solid at normal temperature (for example, 20 degreeC), for example. The form of the complex soil when the liquid detergent composition is brought into contact may be a mixture of liquid oil and solid fat. The soils targeted by the present invention may be greasy soils containing a large amount of liquid oil. Further, the dirt targeted by the present invention may be dirt containing liquid oil derived from food.

In the present invention, it is preferred that the undiluted liquid of the liquid detergent composition is made into a foam without changing the composition, and attached to a hard article containing food-derived liquid oil. For example, it is preferred that the liquid detergent composition is made into a foam and brought into contact with a hard article containing a food-derived liquid oil without adhering it to a water-containing sponge or the like. After contacting a hard article, the composition of the liquid cleaning composition may vary. That is, the composition of the liquid cleaning composition may be diluted or concentrated after contact with hard articles.

Alternatively, a concentrated composition containing the components (a), (b), and (c) and/or (d) of the present invention is prepared, and the concentrated composition is diluted with water to obtain the composition of the present invention. A liquid detergent composition may be prepared and brought into contact with the hard article without dilution. Specifically, a concentrated composition containing the components (a), (b), and (c) and/or (d) of the present invention is diluted with water to prepare the liquid detergent composition used in the present invention. Then, the liquid detergent composition is brought into contact with a hard article containing undiluted liquid oil on which dirt adheres, left to stand without applying an external force such as a mechanical force, and then rinsed with water. It may be a cleaning method.

In the cleaning method of the present invention, the liquid cleaning composition is brought into contact with a hard article having stains containing liquid oil without being diluted, and then allowed to stand without applying (applying) an external force. . In other words, there is a cleaning method in which contact is made without using a flexible material such as a sponge or fingers, and the cleaning method is left as it is without applying an external force such as a mechanical force. After leaving it, it is usually rinsed with water. When rinsing, an external force (physical force) may be applied by a hand or the like, or simply rinsed with a stream of water.

In the cleaning method of the present invention, the liquid cleaning composition of the present invention can be brought into contact with hard articles in the form of foam without dilution. In the washing method of the present invention, the liquid detergent composition of the present invention is preferably used without dilution, and has a foam specific volume of preferably 2 ml/g or more, more preferably 10 ml/g or more, still more preferably 20 ml/g. Above and preferably in the state of foam of 100 ml/g or less, more preferably 70 ml/g or less, still more preferably 60 ml/g or less, is brought into contact with the hard article on which dirt containing liquid oil adheres. Foam specific volume can be calculated by the following formula.
Foam specific volume (mL/g) = volume of foam (mL) / mass of foam (g)

In the cleaning method of the present invention, the amount of the liquid cleaning composition is preferably 0.1 g or more, more preferably 0.3 g or more, and still more preferably 0.4 g per 100 cm ² of the hard article to be treated. As described above, preferably 5 g or less, more preferably 3 g or less, still more preferably 2 g or less, is brought into contact, and furthermore, it is preferable to apply or spray in the form of foam.

In the cleaning method of the present invention, from the viewpoint of enhancing detergency, after the liquid cleaning composition is brought into contact with a hard article, it is preferably 10 seconds or longer, more preferably 20 seconds or longer, still more preferably 30 seconds or longer, and still more preferably 30 seconds or longer. is 40 seconds or more, still more preferably 50 seconds or more, still more preferably 1 minute or more, and from the same viewpoint, preferably 60 minutes or less, more preferably 30 minutes or less, even more preferably 20 minutes or less, and even more It is preferably left for 10 minutes or less, more preferably 5 minutes or less. In this case, the start of standing may be the point at which the foamed composition first contacts the hard article.
In addition, the temperature at the time of leaving is room temperature, for example, 10° C. or more and 30° C. or less.

In the cleaning method of the present invention, a spray means is used to bring the liquid cleaning composition into a state of foam having a foam specific volume of 2 mL/g or more, and to bring the liquid cleaning composition into contact with a hard article on which dirt containing liquid oil is adhered. is preferred. It is preferable that the foam specific volume of the foam discharged from the spray means is within the above range. The liquid detergent composition used in the present invention is used in a detergent article in which a container equipped with a sprayer having a foam-forming mechanism is filled, and the liquid detergent composition is in a state of foam, and liquid oil is added. It is more preferable to bring it into contact with a hard article to which the dirt contained is adhered. The present invention provides a detergent article in a spray container, which is obtained by filling a container equipped with a sprayer having a foam forming mechanism with the liquid detergent composition used in the present invention.

Examples of the container equipped with the sprayer include manual spray devices that do not use a propellant, such as trigger-type spray containers and pump-type spray containers, and aerosols that use a propellant. The container equipped with the sprayer is preferably a trigger-type spray capable of foaming and spraying or applying the contents, and more preferably a trigger-type spray provided with a foam forming mechanism (foam forming mechanism).

When a trigger-type spray equipped with a foam-forming mechanism is used in the detergent article in a spray container, it is preferable that a spin element and a liquid-passing plate having several rod-shaped projections installed in a circular space having a diameter of 4 to 8 mm are provided. is preferred. Here, the spin element is a mechanism that imparts a spin to the flow of the liquid through the spin element and finally ejects from the nozzle. FIG. 4(b) of FIG. 4B and FIG.

When using a trigger-type spray equipped with a foam-forming mechanism, the cleaning agent article in the spray container is preferably 0.5 mL or more, more preferably 1 mL or more, and preferably 30 mL or less, more preferably 30 mL or less, in one operation. sprays 15 mL or less, more preferably 5 mL or less of the composition.

The liquid passage plate, which is another member of the bubble forming mechanism, preferably has 3 to 8 rod-like projections installed in a circular space having a diameter of 5 to 7 mm. In this case, rectangular rod-like projections having a width of 0.8 to 1.2 mm and a length of 2 to 4 mm are suitable. In addition, the area occupied by the rod-shaped projections with respect to the space portion excluding the rod-shaped projections is preferably 30 area% or more, more preferably 40 area% or more, and preferably 90 area% or less, more preferably 80 area% or less. More preferably, it is 70 area % or less. By installing such a liquid passage plate, the adhesion and retention of bubbles on the vertical surface is improved.

As the container for the cleaning agent article contained in the spray container, a commonly used container can be used. For example, it is obtained using polyethylene, polypropylene, or polyethylene terephthalate as a raw material, and can be manufactured by blow molding or the like. The wall thickness of the container may differ between the bottom and the side, preferably 0.01 to 2 mm, and the volume of the container is preferably 100 to 1000 mL. The amount of the liquid detergent composition to be filled in the container is desirably 200 to 500 mL in terms of handling. Also, liquid filling is performed leaving a common-sense void.

The cleaning method of the present invention is intended for cleaning hard articles. INDUSTRIAL APPLICABILITY The present invention is suitable for washing tableware, hard articles around kitchens, and/or hard articles in living environments such as bathrooms, toilets, and floors. In the present invention, an object on which protein stains, lipid stains, and oil stains suitable for enzymatic cleaning are present remarkably is preferable, and hard articles such as tableware and cooking utensils are preferable because stains can be removed more effectively.
The cleaning method of the present invention preferably targets dishes and/or hard articles around the kitchen, more preferably dishes.

Hard articles around the kitchen are articles used around the kitchen, specifically:
(1) refrigerators, cupboards, and other places where food, tableware, and cooking utensils are stored;
(2) Food preparation areas such as drains, kitchen counters, range hoods, sinks, gas ranges, and microwave ovens; In the present invention, these are referred to as "hard articles around the kitchen" for convenience.
In addition, as tableware, specifically,
(i) So-called tableware such as plates and bowls,
(ii) storage containers such as Tupperware, bottles, etc.;
(iii) Kitchen utensils such as knives, cutting boards, pots, frying pans, fish grills, etc.
(iv) Components and equipment that come into contact with foodstuffs, such as cooking appliances such as food processors and mixers. In the present invention, these are referred to as "tableware" for convenience.
In addition, the cleaning method of the present invention preferably targets articles selected from tableware, storage containers, cooking utensils, and cooking appliances, and furthermore, dishes, bowls, tappers, bottles, kitchen knives, cutting boards, pots, frying pans, fish, etc. More preferably, it is directed to articles selected from broiler grills, food processors, and mixers.

Materials of hard articles to be cleaned by the cleaning method of the present invention include plastic (including silicone resin, etc.), metal, pottery, wood, and combinations thereof. And, the cleaning method of the present invention can effectively clean the dirt containing liquid oil adhering to these hard articles.

As described above, liquid oil adhering to a hydrophobic material such as plastic is a stain that is difficult to remove, but the present invention exhibits an excellent cleaning effect even for liquid oil adhering to a hard article made of plastic. INDUSTRIAL APPLICABILITY The present invention is suitable as a method for cleaning hard articles made of plastic. Examples of plastics include polyolefins such as polypropylene and polyethylene, polymethacrylate, polycarbonate, ABS resin, and polyethylene terephthalate.

In the cleaning method of the present invention, the liquid cleaning composition used in the present invention is preferably brought into direct contact with a hard article in the form of foam having a foam specific volume of 2 mL/g or more without being diluted. Moreover, since it is sufficient to leave the composition in contact with it, it is not always necessary to apply an external force such as rubbing with a flexible material such as a sponge during cleaning.
Therefore, the cleaning method of the present invention is
(1) Items that are inconvenient to wash by hand, such as pipes and parts of food manufacturing equipment, refrigerators, cupboards, drains, water bottles, tumblers, kettles, pots, etc.
(2) Liquid oil originating from food, such as storage areas for food, tableware, and cooking utensils, food preparation areas such as cooking tables, range hoods, sinks, gas ranges, and microwave ovens, and surrounding kitchen areas such as floors and walls. Articles with extensively soiled hard surfaces containing
(3) Items that are dangerous to wash by hand, such as kitchen knives, peelers, graters, slicers, juicer blades, food processor blades, etc.
(4) It can also be applied to articles that are difficult to wash using a flexible material such as a sponge, such as articles that have parts with complicated shapes. In the present invention, after washing the hard article without applying an external force such as a mechanical force, if necessary, it may be scrubbed.
Furthermore, in the cleaning method of the present invention, the foamy liquid detergent composition is applied to a hard article and left as it is, so that the composition can be retained on the hard article for a long time.

The cleaning method of the present invention comprises a step of rinsing the hard article contacted with the liquid detergent composition with water, preferably rinsing the hard article contacted with the liquid detergent composition after standing. Including process.

<Liquid detergent composition for foam application>
The present invention contains 0.1% by mass or more and 15% by mass or less of component (a), 1 ppm or more and 500 ppm or less of component (b) as an enzyme protein, and at least one of component (c) and component (d), Foam, wherein (a)/[(c)+(d)], which is the mass ratio of the content of component (a) to the content of components (c) and (d), is 0.1 or more and 10 or less. The present invention relates to a liquid detergent composition for application. The liquid detergent composition of the invention described in the cleaning method of the invention may be the liquid detergent composition for foam application of the invention.

Specific examples and preferred examples of components (a), (b), (c), and (d) in the liquid detergent composition for foam application of the present invention are the same as those of the liquid detergent composition of the present invention. is. The items described for the liquid detergent composition of the present invention can be applied to the liquid detergent composition for foam application of the present invention.

The liquid detergent composition for foam application of the present invention is preferably used in the form of foam having a foam specific volume of 2 mL/g or more.
The liquid detergent composition for foam application of the present invention is preferably for hard articles, more preferably for tableware and/or hard articles around the kitchen.

As described above, the present invention is a technology related to improvement of enzymatic effect by component (c) and/or component (d). Therefore, the present invention provides a liquid detergent composition containing 0.1 to 15% by mass of component (a) and 1 to 1000 ppm as enzyme protein of component (b) without dilution. At least one of the components (c) and (d) is added to the weight of the content of the component (a) and the content of the components (c) and (d) when contacting the stain containing Provided is a method for improving enzymatic effect, wherein the ratio (a)/[(c)+(d)] is contained in the liquid detergent composition at a ratio of 0.1 to 10. To this improvement method, the items described in the liquid detergent composition and cleaning method of the present invention can be appropriately applied. Specific examples and preferred embodiments of each component are the same as those of the liquid detergent composition and the cleaning method of the present invention.

Liquid detergent compositions shown in Tables 1 to 5 were prepared, and their detergency, storage stability and foam specific volume were evaluated by the following methods. The results are shown in Tables 1-5. Ingredients in the table are as follows.

<Ingredients>
[Component (a1)]
・ Di-2-ethylhexyl sodium sulfosuccinate: product name “Airol CT-1L”, manufactured by Toho Chemical Industry Co., Ltd. ・ Sodium dodecylbenzenesulfonate: manufactured by FUJIFILM Wako Pure Chemical Industries, Ltd., reagent ・Secondary alkanesulfonic acid sodium salt: sodium salt of secondary alkanesulfonic acid having 14 to 17 carbon atoms, Hostapur SAS 60, manufactured by CLARIANT Sodium dodecyl sulfate: manufactured by Fujifilm Wako Pure Chemical Industries, Ltd., reagent [component (a2)]
・ Alkyl polyglucoside: Product name “Planta Care 2000 UP”, manufactured by BASF SE, alkyl group with 8 to 16 carbon atoms, degree of condensation of glucose 1 to 2
[(a3) component]
・ Lauryl dimethyl hydroxysulfobetaine: Product name “Amphitol 20HD”, manufactured by Kao Corporation ・ Lauryl dimethylamine oxide: Product name “Amphitol 20N”, manufactured by Kao Corporation

[(b) component]
・ Lipase: Product name “Lipex Prime 100L”, manufactured by Novozymes

[Component (c)]
・Sodium chloride: manufactured by FUJIFILM Wako Pure Chemical Co., Ltd. ・Sodium sulfite: manufactured by FUJIFILM Wako Pure Chemical Co., Ltd. ・Calcium chloride: manufactured by FUJIFILM Wako Pure Chemical Co., Ltd.

[(d) component]
・Sodium acetate: manufactured by FUJIFILM Wako Pure Chemical Industries, Ltd. ・Sodium tartrate: manufactured by FUJIFILM Wako Pure Chemical Industries, Ltd. ・Sodium citrate: trisodium citrate anhydrous, manufactured by FUJIFILM Wako Pure Chemical Industries, Ltd.

[(e) component]
・Diethylene glycol monobutyl ether: manufactured by Nihon Nyukazai Co., Ltd.

<Evaluation method>
(1) Evaluation of detergency The mass of a polypropylene test piece of 75 mm (width) x 100 mm (length) x 1 mm (thickness) was measured with a 4-digit balance (x). One surface of the polypropylene test piece was uniformly coated with rapeseed oil in an amount of 0.08 to 0.12 g to prepare a soiled piece. The mass of the same soiled piece was measured with a 4-digit balance (y).
The liquid detergent composition was filled in a trigger-type spray container (CuCute Clear Foam Spray, manufactured by Kao Corporation) and sprayed five times on the soiled pieces. The composition was extruded as a foam. The total discharge amount of the composition was about 3 g.
After contacting the discharged foam with the soiled piece for 1 minute, it was rinsed with running tap water for 15 seconds. At this time, all the soiled portions of the soiled piece were brought into contact with the foam. Under these conditions, the liquid detergent compositions of the products of the present invention and the examples were brought into contact with foam having a foam specific volume of 2.6 to 48.7 mL/g. As for the foam specific volume here, the foam specific volume (immediately after) measured by the following method was regarded as the foam specific volume of the contacting foam. The conditions for running water rinsing were as follows: tap water temperature of 25° C., flow rate of about 4 L/min, and faucet opening diameter of about 15 mm. Hold the dirt piece at a 45° angle to the tap water falling on the dirt piece located 5 cm vertically below the opening, and hold the angle fixed at the top edge of the dirt piece where dirt is not attached. The washed portion was rinsed over one side with tap water running over the soiled piece under running water. After rinsing, the soiled piece was dried and weighed (z) on a 4-digit balance. The cleaning rate was obtained by the following formula. It is preferable that the numerical value of the cleaning rate is large.
Cleaning rate (%) = {(y) - (z)}/{(y) - (x)} x 100

(2) Evaluation of Storage Stability After preparing the liquid detergent composition, it was stored at 5°C. The number of days it was kept in a clear dissolved state was recorded. Upon visual observation, when there was a clear change in appearance such as separation or turbidity, it was judged that the transparent dissolved state could not be maintained (the storage stability was rejected). In this evaluation, when the number of days was 20 days or more, it was regarded as a pass, and was indicated as ◯ in the table.

(3) Evaluation of Foam Specific Volume The liquid detergent composition was filled in a trigger-type spray container (CuCute Clear Foam Spray, manufactured by Kao Corporation) and sprayed 3 to 10 times into a 200 mL graduated cylinder (inner diameter: 40 mm). . The mass of the 200 mL graduated cylinder 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 foam application amount (g) (a). The volume (mL) of foam in the measuring cylinder immediately after ejection and 1 minute after ejection was visually read. The volume (mL) of foam immediately after ejection was defined as (b), and the volume (mL) of foam one minute after ejection was defined as (b'). The foam specific volume was calculated by the following formula. The higher the foam specific volume, the better the foam dischargeability.
Foam specific volume (mL/g) = [(b) or (b')]/(a)
In this evaluation, a foam specific volume of 10 mL/g or more is good, and is indicated by ◯ in the table. Also, foam specific volume of 2 ml/g or more and less than 10 ml/g was regarded as acceptable, and was indicated by Δ in the table. Moreover, when the foam specific volume was less than 2 ml/g, it was regarded as unacceptable and marked with x in the table.

Claims (23)

(a) a surfactant [hereinafter referred to as component (a)] of 0.1% by mass or more and 15% by mass or less, (b) an enzyme [hereinafter referred to as component (b)] of 1 ppm or more and 1000 ppm or less as an enzyme protein, and (c) contains at least one of inorganic salt [hereinafter referred to as component (c)] and (d) carboxylate [hereinafter referred to as component (d)], the content of component (a), component (c) and (d) A liquid detergent composition in which the mass ratio (a)/[(c)+(d)] to the content of component (d) is 0.1 or more and 10 or less, containing liquid oil without dilution A method for cleaning a hard article, comprising contacting the hard article to which dirt is attached, leaving it without applying an external force, and then rinsing it with water,
The liquid detergent composition contains at least one of an anionic surfactant [hereinafter referred to as component (a1)] and a nonionic surfactant [hereinafter referred to as component (a2)] as component (a), and one or more selected from amphoteric surfactants [hereinafter referred to as component (a3)],
A method for cleaning hard articles . 2. The method for cleaning a hard article according to claim 1, wherein the liquid detergent composition is brought into contact with the hard article on which dirt containing liquid oil is adhered in the form of foam without dilution. Component (a1) is an alkylarylsulfonic acid type surfactant, a sulfate type surfactant, an alkanesulfonic acid type surfactant, an olefinsulfonic acid type surfactant, an alkyl sulfosuccinate type surfactant, and a sulfo fatty acid. 3. The method for cleaning hard articles according to claim 1, wherein the anionic surfactant is one or more anionic surfactants selected from ester-type surfactants. 4. The method for cleaning hard articles according to any one of claims 1 to 3, wherein component (a2) is an alkyl glycoside nonionic surfactant having an alkyl group with 10 or more and 18 or less carbon atoms. The method for cleaning hard articles according to any one of claims 1 to 4 , wherein component (a3) is one or more selected from amine oxide surfactants and betaine surfactants. The method for cleaning hard articles according to any one of claims 1 to 5 , wherein component (c) is one or more selected from inorganic alkali metal salts and inorganic alkaline earth metal salts. The method for cleaning hard articles according to any one of claims 1 to 6 , wherein the liquid detergent composition contains 0.1% by mass or more and 10% by mass or less of component (c). The method for cleaning hard articles according to any one of claims 1 to 7 , wherein component (d) is one or more selected from carboxylic acid salts having 2 to 10 carbon atoms. The method for cleaning hard articles according to any one of claims 1 to 8 , wherein component (d) is one or more selected from tartrate and citrate. The method for cleaning hard articles according to any one of claims 1 to 9 , wherein the liquid detergent composition contains 0.1% by mass or more and 10% by mass or less of component (d). The liquid detergent composition comprises (e) a monovalent alcohol having 1 to 3 carbon atoms, a divalent or trivalent alcohol having 2 to 4 carbon atoms, or a glycol having an alkyl group having 1 to 4 carbon atoms. 0.01% by mass or more of one or more solubilizers selected from ethers and benzenesulfonic acids which may be substituted with one or more and three or less hydrocarbon groups having 1 to 3 carbon atoms. Item 11. The method for cleaning hard articles according to any one of Items 1 to 10 . The method for cleaning hard articles according to any one of claims 1 to 11, wherein the liquid cleaning composition has a pH of 4 or more and 11 or less. (a) a surfactant [hereinafter referred to as component (a)] of 0.1% by mass or more and 15% by mass or less, (b) an enzyme [hereinafter referred to as component (b)] of 1 ppm or more and 1000 ppm or less as an enzyme protein, and (c) contains at least one of inorganic salt [hereinafter referred to as component (c)] and (d) carboxylate [hereinafter referred to as component (d)], the content of component (a), component (c) and A liquid detergent composition for foam application, wherein (a)/[(c)+(d)], which is the mass ratio to the content of component (d), is 0.1 or more and 10 or less ,
Component (a) contains at least one of an anionic surfactant [hereinafter referred to as component (a1)] and a nonionic surfactant [hereinafter referred to as component (a2)], and an amphoteric surfactant [hereinafter ( a3) as a component],
A liquid detergent composition for foam application . Component (a1) is an alkylarylsulfonic acid type surfactant, a sulfate type surfactant, an alkanesulfonic acid type surfactant, an olefinsulfonic acid type surfactant, an alkyl sulfosuccinate type surfactant, and a sulfo fatty acid. 14. The liquid detergent composition for foam application according to claim 13 , which is one or more anionic surfactants selected from ester type surfactants. 15. The liquid detergent composition for foam application according to claim 13 or 14 , wherein component (a2) is an alkyl glycoside type nonionic surfactant having an alkyl group having 10 or more and 18 or less carbon atoms. The liquid detergent composition for foam application according to any one of claims 13 to 15 , wherein component (a3) is one or more selected from amine oxide surfactants and betaine surfactants. The liquid detergent composition for foam application according to any one of claims 13 to 16 , wherein component (c) is one or more selected from inorganic alkali metal salts and inorganic alkaline earth metal salts. 18. The liquid detergent composition for foam application according to any one of claims 13 to 17 , containing 0.1% by mass or more and 10% by mass or less of component (c). 19. The liquid detergent composition for foam application according to any one of claims 13 to 18 , wherein component (d) is at least one selected from carboxylic acid salts having 2 to 10 carbon atoms. 20. The liquid detergent composition for foam application according to any one of claims 13 to 19 , containing 0.1% by mass or more and 10% by mass or less of component (d). (e) monohydric alcohols having 1 to 3 carbon atoms, dihydric or trihydric alcohols having 2 to 4 carbon atoms, glycol ethers having an alkyl group having 1 to 4 carbon atoms, and 1 to 3 carbon atoms Any one of claims 13 to 20 , containing 0.01% by mass or more of one or more solubilizers selected from benzenesulfonic acids which may be substituted by one or more and three or less of the following hydrocarbon groups: 10. The liquid detergent composition for foam application according to claim 1. The liquid detergent composition for foam application according to any one of claims 13 to 21 , which has a pH of 4 or more and 11 or less at 20°C. (a) Contains 0.1% by mass or more and 15% by mass or less of a surfactant [hereinafter referred to as component (a)], and (b) contains 1 ppm or more and 1000 ppm or less of an enzyme [hereinafter referred to as component (b)] as an enzyme protein. (c) inorganic salt [hereinafter referred to as component (c)] and (d) carboxylate [hereinafter referred to as component (c)] and (d) carboxylate [hereinafter (d) component] is the mass ratio of the content of component (a) to the content of components (c) and (d) (a) / [(c) + (d) ] is included in the liquid detergent composition at a ratio of 0.1 to 10, wherein
The liquid detergent composition contains at least one of an anionic surfactant [hereinafter referred to as component (a1)] and a nonionic surfactant [hereinafter referred to as component (a2)] as component (a), and one or more selected from amphoteric surfactants [hereinafter referred to as component (a3)],
Method for improving enzymatic effect .