JP7129898B2 - Method for cleaning tableware and/or hard articles around the kitchen - Google Patents

Description

TECHNICAL FIELD The present invention relates to a method for washing tableware and/or hard articles around the kitchen, and 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.

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

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.
Moreover, it is desired that the enzyme-containing liquid detergent composition has excellent stability.

The present invention provides a method for washing dishes and/or hard articles around the kitchen, in which excellent detergency can be obtained even in a manner in which soiled dishes and the like are brought into contact with a detergent and then left unattended without applying an external force. and a liquid detergent composition for foam application which has such effects and is also excellent in storage stability.

The present invention comprises (a) a surfactant [hereinafter referred to as component (a)] in an amount of 0.5% by mass or more and 11% by mass or less, and (b) an enzyme [hereinafter referred to as component (b)] as an enzyme protein in an amount of 0.5% by mass or more. 1 ppm or more and 1000 ppm or less, (c) a water-soluble solvent [hereinafter referred to as component (c)] and water, and (a) component (a1) nonionic surfactant [hereinafter referred to as component (a1)]. and (a1)/(a), which is the mass ratio of the content of component (a) to the content of component (a1), is 0.5 or more and 1.0 or less. A method for washing tableware and/or hard articles around the kitchen, wherein a foam having a volume of 2 mL/g or more is brought into contact with the dishes and/or the hard articles around the kitchen to which dirt containing food-derived liquid oil is adhered. Regarding.

In addition, the present invention contains (a) a surfactant [hereinafter referred to as component (a)] of 0.5% by mass or more and 11% by mass or less, and (b) an enzyme [hereinafter referred to as component (b)] as an enzyme protein. 0.1 ppm or more and 1000 ppm or less, (c) a water-soluble solvent [hereinafter referred to as (c) component] and water, and (a) component (a1) nonionic surfactant [hereinafter referred to as (a1) component] and (a1)/(a), which is the mass ratio of the content of component (a) to the content of component (a1), is 0.5 or more and 1.0 or less. Regarding the composition.

According to the present invention, a tableware and/or a hard article around the kitchen that can obtain excellent cleaning power even in a mode in which soiled tableware or the like is brought into contact with a detergent and then left to stand without applying an external force for washing. A cleaning method and a liquid detergent composition for foam application which have such effects and are excellent in storage stability are provided.

<Method for cleaning tableware and/or hard articles around the kitchen>
The method for washing tableware and/or hard articles around the kitchen of the present invention comprises: component (a) from 0.5% by mass to 11% by mass; component (b) from 0.1 ppm to 1000 ppm as an enzyme protein; ) component and water, containing component (a1) as component (a), and (a1) / (a), which is the mass ratio of the content of component (a) to the content of component (a1) Dishes and/or kitchen surroundings with stains containing food-derived liquid oil in a foam state with a foam specific volume of 2 mL/g or more. hard objects.

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 a nonionic surfactant as component (a1) as component (a). The liquid detergent composition of the present invention preferably contains two or more nonionic surfactants as component (a).

The nonionic surfactant as component (a1) is selected from alkyl glycoside nonionic surfactants, tertiary amine oxide surfactants, alkyl ether nonionic surfactants, and alkyl glyceryl ether surfactants. one or more, preferably two or more nonionic surfactants.

More specifically, component (a1) contains (a1-1) an alkyl glycoside-type nonionic surfactant having an alkyl group with 8 to 18 carbon atoms [hereinafter referred to as component (a1-1)]. is preferred. The alkyl group of component (a1-1) preferably has 8 or more carbon atoms, more preferably 10 or more carbon atoms, and preferably 16 or less carbon atoms, more preferably 14 or less carbon atoms, and the average degree of condensation of sugars such as glucose is 1 or more. It is 3 or less, preferably 1 or more and 2 or less, more preferably 1 or more and 1.5 or less.
In addition, the component (a1) is an alkyl group having 8 or more and 18 or less carbon atoms, preferably 8 carbon atoms, wherein one of the groups bonded to the nitrogen atoms of (a1-2) may be divided by an amide group or an ester group. A tertiary amine oxide surfactant having an alkyl group of 16 or less, more preferably an alkyl group having 8 to 14 carbon atoms, and the remainder being an alkyl group having 1 to 3 carbon atoms, preferably a methyl group [hereinafter , referred to as component (a1-2)].
Component (a1) is a branched fatty alcohol or secondary fatty alcohol having an alkyl group having 9 to 18 carbon atoms, preferably 9 to 15 carbon atoms, and an alkylene oxide having 2 or 3 carbon atoms. , preferably an average of 3 mol or more and 30 mol or less of ethylene oxide, preferably 3 mol or more and 20 mol or less, more preferably 3 mol or more and 15 mol or less of a nonionic surfactant [hereinafter referred to as component (a1-3) ] is preferably included.
In addition, the component (a1) has (a1-4) an alkyl glyceryl ether type interface having one alkyl group having 8 to 18 carbon atoms, preferably 8 to 14 carbon atoms, more preferably 8 to 12 carbon atoms It preferably contains an active agent (a1-4) [hereinafter referred to as component (a1-4)]. The alkyl group of component (a1-4) is preferably a branched chain alkyl group having 8 or more and 12 or less carbon atoms.

The liquid detergent composition of the present invention comprises, as components (a), one or more nonionic surfactants selected from components (a1-1) and (a1-2), and components (a1-3) and (a1-4) It is preferable to contain one or more nonionic surfactants selected from component (a1-4) from the viewpoint of detergency.
When the liquid detergent composition of the present invention contains one or more nonionic surfactants selected from components (a1-1) as the component (a), the component (a1-3) and ( From the viewpoint of detergency, it is preferable to contain one or more nonionic surfactants selected from components a1-4). In that case, one or more nonionic surfactants selected from components (a1-3) and (a1-4) have an HLB (HLB determined by Griffin's method described later or an experimental method described later). It may be a nonionic surfactant of 10.5 or less.

In addition, when the liquid detergent composition of the present invention contains, as the component (a), one or more nonionic surfactants selected from the components (a1-1), it further contains components other than the component (a1-1). of nonionic surfactants. That is, it is preferable to contain the component (a1-1) and a nonionic surfactant other than the component (a1-1) as the component (a). (a1-1) As the nonionic surfactant other than the component, HLB (HLB determined by Griffin's method described later or the experimental method described later) is a nonionic surfactant selected from 10.5 or less. Ionic surfactants can be mentioned. From this point of view, the combination of the component (a11) and the component (a12), which will be described later, is one of the preferred embodiments of the component (a1) of the present invention.

From the viewpoint of detergency, the liquid detergent composition of the present invention has the total content of component (a1-1) and component (a1-2), and the content of component (a1-3) and ( [(a1-3) + (a1-4)]/[(a1-1) + (a1-2)], which is the mass ratio to the total content of component a1-4), is preferably 0.05 more preferably 0.1 or more, still more preferably 0.15 or more, still more preferably 0.2 or more, and preferably 10 or less, more preferably 8 or less, still more preferably 5 or less, still more preferably 4 or less.

From the viewpoint of detergency, the liquid detergent composition of the present invention has a content of component (a1-1), a content of component (a1-2), a content of component (a1-3), and a content of component (a1-4). ) is the mass ratio of the total content of components to the content of component (a1) [(a1-1) + (a1-2) + (a1-3) + (a1-4)] / (a1) is preferably 0.5 or more, more preferably 0.7 or more, still more preferably 0.8 or more, still more preferably 0.9 or more, and 1.0 or less, even if it is 1.0 good.

Other nonionic surfactants for the component (a1) include polyoxyethylene alkyl ethers, which should be selected in consideration of the effects of the present invention. Component (a1) other than component (a1-1), component (a1-2), component (a1-3) and component (a1-4) is a linear chain having 8 or more and 18 or less carbon atoms, preferably 14 or less. A polyoxyalkylene alkyl ether obtained by adding an oxyalkylene group having 2 or 3 carbon atoms, preferably an oxyethylene group having an average of 3 mol or more, preferably 5 mol or more, and 20 mol or less, preferably 15 mol or less to a fatty alcohol [hereinafter ( a1-5) referred to as component].

Surfactants other than component (a1) are selected from amphoteric surfactants [hereinafter sometimes referred to as component (a2)] and anionic surfactants [hereinafter sometimes referred to as component (a3)]. One or more surfactants may be used, which should be selected in consideration of the effects of the present invention.

(a2) Component amphoteric surfactants include one or more surfactants selected from sulfobetaine-type surfactants and carbobetaine-type 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.

(a3) Component anionic surfactants include alkylarylsulfonic acid type surfactants, sulfate ester type surfactants, alkanesulfonic acid type surfactants, olefin sulfonic 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. Specifically, an alkylbenzenesulfonate having an alkyl group having 6 or more and 15 or less carbon atoms, preferably 8 or more and 15 or less carbon atoms can be mentioned.

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.

In the liquid detergent composition of the present invention, from the viewpoint of detergency and storage stability, the mass ratio (a1)/(a) of the content of component (a) to the content of component (a1) is 0. 0.5 or more, preferably 0.7 or more, more preferably 0.8 or more, still more preferably 0.9 or more, and 1.0 or less, which may be 1.0.

From the viewpoint of detergency and storage stability, the liquid detergent composition of the present invention contains component (a) in an amount of 0.5% by mass or more, preferably 1.0% by mass or more, more preferably 2.0% by mass or more. , and 11% by mass or less, preferably 10% by mass or less, more preferably 8% 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, and Bacillus macerans. ), bacteria such as Pseudomonas stutzeri and Klebusiella aerogenes, actinomycetes such as Streptomyces griseus, fungi such as Aspergillus oryzae and Aspergillus niger , seeds of grasses and legumes, digestive glands of animals such as humans and pigs, and many other organisms. 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 Gist Brokers), Termamyl, Duramil and Stainzyme (trade names) (manufactured by Novozymes Japan), Amplify (manufactured by Novozymes), Plaster ST and Plaster (trade names). OxAm (manufactured by Genencore International) can be mentioned.

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 preferably contains 0.1 ppm or more and 1000 ppm or less of the component (b) as an enzyme protein. The content of component (b) in the composition is preferably 0.5 ppm or more, more preferably 1 ppm or more, still more preferably 2 ppm or more, and preferably 500 ppm or less, more preferably 200 ppm or less, as an enzyme protein. More preferably, it is 100 ppm or less. 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.

Component (c) is a water-soluble solvent. Regarding the solvent of the component (c), "water-soluble" means that 5 g or more dissolves in 100 g of water at 25°C.

Component (c) is preferably a water-soluble organic solvent having 2 or more carbon atoms, 3 or more carbon atoms, and 10 or less carbon atoms, and 8 or less carbon atoms. Moreover, as the component (c), a water-soluble organic solvent selected from monohydric alcohols, polyhydric alcohols (such as glycol), and glycol ethers is preferable.

In terms of detergency and storage stability, the component (c) preferably has a LogPow of 0 or more, more preferably 0.1 or more, and still more preferably 0.2 or more. 1.5 or less, more preferably 1.0 or less water-soluble organic solvents.

In the present invention, the logPow value is a coefficient that indicates the affinity of an organic compound for water and 1-octanol. The 1-octanol/water partition coefficient P is the partition equilibrium when a trace amount of a compound is dissolved as a solute in a solvent of two liquid phases of 1-octanol and water, and is the ratio of the equilibrium concentrations of the compound in each solvent, It is common to express them in their logarithmic logPow form to base 10. The logPow values of many compounds have been reported, and databases available from Daylight Chemical Information Systems, Inc. (Daylight CIS) and the like contain many values and can be referred to. If there is no actual logPow value, it can be calculated using a program such as "CLOGP" available from Daylight CIS. This program outputs the value of "calculated logPow (ClogPow)" calculated by the fragment approach of Hansch, Leo, along with the measured logPow value, if any.

The fragment approach is based on the chemical structure of the compound and considers the number of atoms and the type of chemical bonds (cf. A. Leo, Comprehensive Medicinal Chemistry, Vol. 4, C. Hansch, P.G. Sammens, J.B. Taylor and C.A. Ramsden, Eds., p.295, Pergamon Press, 1990). This ClogPow value can be used in place of the actual logPow value in compound selection. In the present invention, if there is an actual measured value of logPow, it is used, and if not, the ClogPow value calculated by the program CLOGP v4.01 is used.

Component (c) includes (c-1) a monohydric alcohol having 1 to 3 carbon atoms, (c-2) a polyhydric alcohol having 2 to 4 carbon atoms, and (c-3) the number of carbon atoms in the alkylene glycol unit. is 2 to 4 di- or trialkylene glycol, (c-4) a mono-, di-, tri- or tetra-alkylene glycol having 2 to 4 carbon atoms in the alkylene glycol unit, monoalkyl (methyl, ethyl, propyl or butyl), Mention may be made of monophenyl or monobenzyl ethers.

Specifically, (c-1) as ethanol, isopropyl alcohol, (c-2) as isoprene glycol, propylene glycol, (c-4) as propylene glycol monoethyl ether, diethylene glycol monobutyl ether (butyl diglycol, etc.) also called), dipropylene glycol monobutyl ether, triethylene glycol monobutyl ether (also called butyl triglycol, etc.), phenoxyethanol, phenoxytriethylene glycol, phenoxyisopropanol. Component (c) is preferably an organic solvent selected from ethanol, propylene glycol, dipropylene glycol monobutyl ether, diethylene glycol monobutyl ether, triethylene glycol monobutyl ether, phenoxyethanol, and phenoxyisopropanol.

In the liquid detergent composition for tableware and/or hard articles around the kitchen of the present invention, the component (c) preferably has an alkoxy group from the viewpoint of further enhancing the cleaning action of food-derived liquid oil stains. It preferably contains one or more selected from the above (c-4), more preferably contains one or more selected from diethylene glycol monobutyl ether, triethylene glycol monobutyl ether and dipropylene glycol monobutyl ether as component (c), It is more preferable to contain diethylene glycol monobutyl ether.

From the viewpoint of detergency and storage stability, the liquid detergent composition of the present invention preferably contains component (c) in an amount of 1.0% by mass or more, more preferably 2.0% by mass or more, and still more preferably 5.0% by mass. % or more, preferably 30 mass % or less, more preferably 25 mass % or less, and still more preferably 20 mass % or less.

In the liquid detergent composition of the present invention, from the viewpoint of cleaning performance, the total mass ratio of the content of component (c), the content of component (a1-3), and the content of component (a1-4) is (c)/[(a1-3)+(a1-4)] is preferably 1 or more, more preferably 1.5 or more, still more preferably 2 or more, still more preferably 2.5 or more, and , preferably 20 or less, more preferably 15 or less, still more preferably 10 or less.

The liquid detergent composition of the present invention contains, in addition to components (a), (b) and (c), an anti-gelling agent, a thickening agent such as polyacrylic acid, a fragrance, a dye, a pigment, a bactericide, Ingredients such as preservatives and pH adjusters can be contained within a range that does 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 components (a) to (c) 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 20 mPa·s or less, preferably 15 mPa·s or less, more preferably 10 mPa·s or less, still 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 liquid detergent composition of the present invention may further contain (d) a sequestering agent [hereinafter referred to as component (d)]. Component (d) includes citric acid, ethylenediaminetetraacetic acid, methylglycine diacetic acid, L-glutamic acid diacetic acid, and salts thereof such as sodium salts. When the liquid detergent composition of the present invention contains the component (d), the composition preferably contains the component (d) in an amount of 0.1 mass % or more, more preferably contains 0.5% by mass or more, more preferably 1% by mass or more, and preferably 15% by mass or less, more preferably 10% by mass or less, and even more preferably 5% by mass or less.

The liquid detergent composition of the present invention preferably further contains (e) a hydrotrope agent [hereinafter referred to as component (e)] for the purpose of adjusting the viscosity to an appropriate level. The hydrotrope agent is preferably an alkylbenzenesulfonate having 1 to 3 alkyl groups with a maximum of 3 or less carbon atoms, specifically toluenesulfonic acid, xylenesulfonic acid, and cumenesulfonic acid, sodium of these, Potassium or magnesium salts are good, p-toluenesulfonic acid or its salts are even better.
When the liquid detergent composition of the present invention contains component (e), from the viewpoint of proper viscosity for foam formation and storage stability, the composition preferably contains component (e) in an amount of 1 mass. % or more, more preferably 1.5 mass % or more, and preferably 10 mass % or less, more preferably 7.5 mass % or less.

As the cleaning method of the present invention,
0.5% by mass or more and 11% by mass or less of component (a); 0.1 ppm or more and 1000 ppm or less of component (b) as an enzyme protein; component (c) and water; and (a1)/(a), which is the mass ratio between the content of component (a) and the content of component (a1), is 0.5 or more and 1.0 or less, and as component (a1), (a11) a nonionic surfactant having an HLB of 10.5 or less (excluding component (a12)) [hereinafter referred to as component (a11)]; An alkyl glycoside type nonionic surfactant [hereinafter referred to as component (a12)] having an average degree of condensation of sugar such as glucose of 1 or more and 3 or less, and the content of component (a) and the content of component (a11) The mass ratio (a11) / (a) is 0.3 or more and 0.95 or less, and the mass ratio (c) / ( a11) is 1 or more and 10 or less, and the viscosity at 20° C. is 20 mPa·s or less [hereinafter sometimes referred to as liquid detergent composition (I)],
In the state of foam with a foam specific volume of 2 mL / g or more, it is brought into contact with tableware and / or hard articles around the kitchen that are stained with liquid oil derived from food.
A method for cleaning dishes and/or hard items around the kitchen is included.

Component (a11) is a nonionic surfactant with an HLB of 10.5 or less (excluding component (a12)).
The (a11) component may be selected from the (a1-3) and (a1-4) components described above.

The HLB of component (a11) is preferably 3 or more, more preferably 4 or more, still more preferably 5 or more, and preferably 10 or less, more preferably 9.5 or less, from the viewpoint of detergency against liquid oil stains. More preferably, it is 9 or less.

The HLB of component (a11) is the HLB determined by Griffin's method, and the HLB value of this method is determined by the following formula in the case of polyoxyalkylene type nonionic surfactants.
HLB value = 20 x (M _H /M) [M _H : molecular weight of hydrophilic group portion, M: molecular weight]
When there is a distribution in the number of added moles of the oxyalkylene groups of the polyoxyalkylene group, which is the hydrophilic group portion, the average value of the number of added moles is used to determine the molecular weight of the hydrophilic group portion.
In addition, in the case of an ester-type nonionic surfactant, it is determined by the following formula.
HLB value = 20 x (1-S/A) [S: saponification value of ester, A: acid value of fatty acid]
For the calculation of these HLB, reference can be made to the method described in "Yu Kagaku, Vol. 13, No. 4" (1964), pp. 36-39, Shigeo Hayano, Institute of Industrial Science, University of Tokyo.
For nonionic surfactants whose HLB cannot be determined by Griffin's method, HLB determined by experiments shall be adopted. For the experimental method, the method described in "Handbook of Surfactants" published by Sangyo Tosho Co., Ltd., edited by Ichiro Nishi et al., 5th edition, January 10, 1966, page 319, is employed.
That is, component (a11) is a nonionic surfactant having at least one HLB of 10.5 or less as determined by Griffin's method and the aforementioned experimental method. Hereinafter, the HLB of the nonionic surfactant means the HLB determined by the two methods described above, unless otherwise specified.

(a11) As the component,
(a11-1) an alkyl glyceryl ether having an alkyl group having 5 to 10 carbon atoms and an HLB of 10.5 or less [hereinafter referred to as component (a11-1)];
(a11-2) A fatty alcohol having 8 to 18 carbon atoms or a lower alcohol ester of a fatty acid having 8 to 18 carbon atoms (the lower alcohol has 1 to 3 carbon atoms) and an alkylene oxide having 2 or 3 carbon atoms on average. A polyoxyalkylene-type nonionic surfactant added with 1 mol or more and 5 mol or less and having an HLB of 10.5 or less [hereinafter referred to as component (a11-2)];
(a11-3) an ester of a polyhydric alcohol having 2 to 10 hydroxy groups and a fatty acid having 8 to 18 carbon atoms and having an HLB of 10.5 or less, a polyhydric alcohol ester-type non- an ionic surfactant [hereinafter referred to as component (a11-3)],
(a11-4) a mono- or dialkanolamide having an alkanoyl group having 8 to 18 carbon atoms (the alkanol group has 2 or 3 carbon atoms) or an alkylene oxide adduct thereof (the alkylene oxide has 2 or 3 carbon atoms, an alkanolamide-type nonionic surfactant having an average added mole number of more than 0 and 4 or less) and an HLB of 10.5 or less [hereinafter referred to as component (a11-4)], and (a11-5) the number of carbon atoms A nonionic surfactant which is an alkylene oxide adduct having 2 or 3 carbon atoms of an amine having a hydrocarbon group of 8 or more and 18 or less and having an HLB of 10.5 or less [hereinafter referred to as component (a11-5)]
One or more nonionic surfactants selected from

The alkyl group constituting component (a11-1) may be linear or branched. The number of carbon atoms in the alkyl group is preferably 6 or more and preferably 9 or less. Specific examples of the component (a11-1) include decyl glyceryl ether, hexyl glyceryl ether, octyl glyceryl ether, and 2-ethylhexyl glyceryl ether.

The fatty alcohol or fatty acid constituting component (a11-2) may be linear or branched. The number of carbon atoms in the fatty alcohol or fatty acid is preferably 10 or more and preferably 16 or less, more preferably 14 or less, respectively. The polyoxyalkylene group of the component (a11-2) preferably has an average addition mole number of 2 or more and preferably 4 or less. The alkylene oxide is preferably an alkylene oxide having 2 carbon atoms and/or an alkylene oxide having 3 carbon atoms, that is, ethylene oxide and/or propylene oxide, more preferably ethylene oxide. As lower alcohol esters of fatty acids, methyl esters and ethyl esters are preferred. Specifically, the component (a11-2) is a polyoxyethylene alkyl ether type nonionic surfactant obtained by adding an average of 1 mol or more and 4 mol or less of ethylene oxide to a linear fatty alcohol having 10 or more and 14 or less carbon atoms, carbon A polyoxyethylene alkyl ether type nonionic surfactant obtained by adding 1 to 4 mol on average of ethylene oxide to a secondary alcohol having a number of 10 to 15, and an average of 2 mol of ethylene oxide to a methyl ester of a fatty acid having 10 to 14 carbon atoms. Nonionic surfactants added in an amount of 5 mol or less can be mentioned.

The number of hydroxy groups in the polyhydric alcohol constituting component (a11-3) is preferably 3 or more, and preferably 6 or less. Polyhydric alcohols constituting component (a11-3) include glycerin, diglycerin, trimethylolpropane, pentaerythritol and sorbitan. The number of carbon atoms in the fatty acid constituting component (a11-3) is preferably 10 or more and 18 or less, preferably 14 or less. Specific examples of the component (a11-3) include glycerin mono- or dilaurate, glycerin mono- or distearate, trimethylolpropane mono- or dilaurate, pentaerythritol mono- or dilaurate, and sorbitan monolaurate.

The number of carbon atoms in the alkanoyl group constituting component (a11-4) is preferably 10 or more, preferably 16 or less, and more preferably 14 or less. The alkanol group (-ROH: R is an alkylene group having 2 or 3 carbon atoms) preferably has 2 carbon atoms. Moreover, when it is an alkylene oxide adduct, the average number of added moles is preferably 1 or more and 3 or less. The alkylene oxide is preferably an alkylene oxide having 2 carbon atoms and/or an alkylene oxide having 3 carbon atoms, that is, ethylene oxide and/or propylene oxide, more preferably ethylene oxide.

The number of carbon atoms in the hydrocarbon group constituting component (a11-5) is preferably 10 or more, preferably 16 or less, and more preferably 14 or less. The hydrocarbon group of component (a11-4) is preferably an alkyl group. The alkylene oxide is preferably an alkylene oxide having 2 carbon atoms and/or an alkylene oxide having 3 carbon atoms, that is, ethylene oxide and/or propylene oxide, more preferably ethylene oxide. Moreover, the average number of added moles of the alkylene oxide is preferably 1 or more and 4 or less.

Component (a11) is preferably component (a11-1).

Component (a12) is an alkyl glycoside nonionic surfactant having an alkyl group having 8 to 18 carbon atoms and having an average degree of condensation of sugar, for example glucose, of 1 to 3.
The (a12) component may be selected from the above (a1-1) components.

The number of carbon atoms in the alkyl group of component (a12) is preferably 10 or more, preferably 16 or less, more preferably 14 or less. The average degree of condensation of the sugar of component (a12), such as glucose, is 1 or more, preferably 2.5 or less, more preferably 2 or less, and still more preferably 1.5 or less.

Specific examples of the component (a12) include alkyl glycosides obtained by condensing linear or branched alcohols having an average carbon number of 8 or more and 14 or less and glucose having an average of 1.0 mol or more and 2.0 mol or less.

(a) After satisfying the condition that the content of component (a) is 0.5% by mass or more and 11% by mass or less, the liquid detergent composition (I), from the viewpoint of detergency against liquid oil stains, (a11 ) component is preferably 0.5% by mass or more, more preferably 1% by mass or more, still more preferably 2% by mass or more, and preferably 10% by mass or less, more preferably 8% by mass or less, further preferably 6 % by mass or less.

(a) After satisfying the condition that the content of the component is 0.5% by mass or more and 11% by mass or less, the liquid detergent composition (I) contains the component (a12) from the viewpoint of foaming properties. , preferably 0.25% by mass or more, more preferably 1% by mass or more, still more preferably 2% by mass or more, and preferably 10% by mass or less, more preferably 8% by mass or less, further preferably 6% by mass or less contains.

Liquid detergent composition (I) preferably contains component (c) in an amount of 0.5% by mass or more, more preferably 1% by mass or more, and even more preferably 4% by mass or more, from the viewpoint of detergency against liquid oil stains. , and preferably 30% by mass or less, more preferably 20% by mass or less, and still more preferably 15% by mass or less.

In the liquid detergent composition (I), from the viewpoint of detergency against liquid oil stains, the mass ratio (a11)/(a) of the content of component (a) to the content of component (a11) is 0.3 or more, preferably 0.35 or more, more preferably 0.4 or more, and 0.95 or less, preferably 0.9 or less, more preferably 0.8 or less.

In the liquid detergent composition (I), the total ratio of components (a11) and (a12) in component (a) is preferably 50% by mass or more, more preferably, from the viewpoint of detergency against liquid oil stains. is 60% by mass or more, more preferably 70% by mass or more, still more preferably 80% by mass or more, and preferably 100% by mass or less, and may be 100% by mass.

In the liquid detergent composition (I), the mass ratio (c)/(a11) of the content of component (c) to the content of component (a11) is 1 or more from the viewpoint of detergency against liquid oil stains. 10 or less. The mass ratio of (c)/(a11) is preferably 8 or less, more preferably 5 or less, even more preferably 4 or less, and even more preferably 3 or less.

In the liquid detergent composition (I), the mass ratio of the content of component (a11) to the content of component (a12) is from the viewpoint of detergency against liquid oil stains and foaming power immediately after foam formation ( a11)/(a12) is preferably 0.2 or more and 10 or less. The (a11)/(a12) mass ratio is more preferably 0.5 or more, more preferably 8 or less, and even more preferably 5 or less.

Liquid detergent composition (I) may contain component (a11) and surfactants other than component (a11), but it is necessary to use them within a range that does not impair the effects of the present invention. Since an anionic surfactant may affect the permeability of component (a11) into liquid oil, when it is contained, the content in the composition is preferably 5% by mass or less, more preferably is 4% by mass or less, more preferably 3% by mass or less, even more preferably 2% by mass or less, and even more preferably 1% by mass or less.

The liquid detergent composition for tableware and/or hard articles around the kitchen of the present invention may contain a sulfosuccinate surfactant as an anionic surfactant for the purpose of improving the detergency of solid fat. can. Examples of sulfosuccinic acid ester-type surfactants include sulfosuccinic acid dialkyl esters in which the alkyl group is a linear or branched alkyl group having 5 to 18 carbon atoms, or salts thereof. The alkyl group is preferably a branched chain alkyl group, more preferably an alkyl group selected from 2-ethylhexyl group, sec-octyl group, isopentyl group, isononyl group and isodecyl group, still more preferably sec-octyl group. , an isodecyl group, and a 2-ethylhexyl group, more preferably a 2-ethylhexyl group. The salt is preferably an alkali metal salt. When the liquid detergent composition (I) contains a sulfosuccinate surfactant, the content thereof is preferably 0.01% by mass or more, more preferably 0.05% by mass or more, and further It is preferably 0.1% by mass or more, more preferably 0.5% by mass or more, and preferably 5% by mass or less, more preferably 3% by mass or less, and even more preferably 2% by mass or less.

The method for washing tableware and/or hard articles around the kitchen of the present invention comprises the liquid detergent composition of the present invention in the form of foam having a foam specific volume of 2 mL/g or more, and liquid oil derived from food. This is a cleaning method for contacting tableware and/or hard articles around the kitchen with stains such as a mixture of liquid oil and solid fat. 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 tableware and/or hard articles around the kitchen in a state 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 stains containing liquid oil derived from food, the liquid oil is finely divided and separated from the object (tableware and/or hard articles around the kitchen) so as to float. be done. 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, the liquid detergent composition is brought into contact with the dishware and/or hard articles around the kitchen on which stains containing food-derived liquid oil are adhered in the form of foam without being diluted, Rinsing without rubbing is preferred.
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 tableware and/or hard articles around the kitchen to which oil stains containing liquid oil are adhered, for example, by mechanical force or the like. It is preferable to wash without applying any external force.
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 tableware and/or hard articles around the kitchen to which oil stains containing liquid oil are adhered, for example, by mechanical force or the like. It is preferable to leave it to wash without applying any external force.
Washing tableware and/or hard articles around the kitchen without applying external force such as mechanical force means, for example, not performing an operation that intentionally applies an external force for washing to the object other than contact with the composition. That is. For example, the contacting composition naturally flows down the surface of the tableware and/or hard articles around the kitchen, or the transmission of vibrations not intended for cleaning to the tableware and/or hard articles around the kitchen are mechanical forces. It can be understood to wash dishes and/or hard items around the kitchen without applying an external force such as.
Bringing the liquid detergent composition undiluted into contact with soiled tableware and/or hard articles around the kitchen containing food-derived liquid oil means that the detergent composition is intentionally After diluting with water, it should not come into contact with dirty tableware and/or hard articles around the kitchen that contain food-derived liquid oil. For example, after the liquid detergent composition is brought into contact with tableware and/or hard articles around the kitchen to which water droplets or the like are attached, or the liquid detergent composition is brought into contact with the tableware and/or hard articles around the kitchen, When water droplets adhere to hard articles around tableware and/or the kitchen, the liquid detergent composition is not diluted, and the tableware and/or around the kitchen with stains containing liquid oil derived from food is attached. It can be understood as being in contact with a hard article.
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 detergent composition is foamed and brought into contact with tableware and/or hard articles around the kitchen to which stains containing food-derived liquid oil are adhered, and a flexible material is used. There is a cleaning method in which neither cleaning, cleaning with running water, nor cleaning with ultrasonic waves is performed, and the product is left as it is without applying an external force such as a mechanical force. In other words, as the cleaning method of the present invention, the liquid detergent composition is brought into contact with tableware and/or hard articles around the kitchen to which stains containing food-derived liquid oil are adhered in the form of a foam, and is then brought into contact with a sponge or the like. There is a washing method in which the cloth is left as it is without applying an external force such as a mechanical force without using any of the frictional force of a flexible material, the flowing water force of a shower in an automatic dishwashing machine, or the vibration of ultrasonic waves.

Soils containing liquid oil derived from foodstuffs may be compound soils 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.

In the present invention, the undiluted solution of the liquid detergent composition is used as it is, that is, without changing the composition, and is made into a foam, which is applied to tableware and/or hard articles around the kitchen to which stains containing food-derived liquid oil are adhered. Adhesion is preferred. For example, without adhering the liquid detergent composition to a wet sponge or the like, the liquid detergent composition is made into a foam and brought into contact with tableware and/or hard articles around the kitchen on which stains containing food-derived liquid oil are adhered. is preferred. The composition of the liquid cleaning composition may vary after contact with tableware and/or hard items around the kitchen. That is, after contact with tableware and/or hard articles around the kitchen, the composition of the liquid detergent composition may be diluted or concentrated.

Alternatively, a concentrated composition containing the components (a), (b) and (c) of the present invention is prepared, and the concentrated composition is diluted with water to obtain the liquid detergent composition used in the present invention. The liquid detergent composition may be prepared and brought into contact with tableware and/or hard articles around the kitchen in the form of foam without dilution. That is, a concentrated composition containing the components (a), (b) and (c) of the present invention is diluted with water to prepare a liquid detergent composition for use in the present invention, and the liquid detergent composition is The tableware and / or kitchen surroundings are washed without applying external force such as mechanical force by contacting the dirty dishes and / or hard items around the kitchen containing undiluted food-derived liquid oil may be a cleaning method for hard articles.

In the cleaning method of the present invention, the liquid detergent composition is brought into contact with the dishware and/or hard articles around the kitchen, which are soiled with food-derived liquid oil, in the form of foam without being diluted. After that, it is preferably left 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 washing method of the present invention, the liquid detergent composition of the present invention has a foam specific volume of 2 ml/g or more, preferably 10 ml/g or more, more preferably 20 ml/g or more, and preferably 100 ml/g or less. More preferably 70 ml/g or less, more preferably 60 ml/g or less foam, is brought into contact with tableware and/or hard articles around the kitchen that are stained with food-derived liquid oil. 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 detergent composition is preferably 0.1 g or more, more preferably 0.3 g or more, per 100 cm ² of tableware and/or hard articles around the kitchen. , more preferably 0.4 g or more, and preferably 5 g or less, more preferably 3 g or less, and still more preferably 2 g or less.

In the cleaning method of the present invention, from the viewpoint of enhancing detergency, the liquid detergent composition is preferably kept in contact with tableware and/or hard articles around the kitchen for 10 seconds or more, more preferably 20 seconds or more, and still more preferably 20 seconds or more. 30 seconds or more, more preferably 40 seconds or more, still more preferably 50 seconds or more, still more preferably 1 minute or more, and from the same viewpoint, preferably 60 minutes or less, more preferably 30 minutes or less, and still more preferably is left for 20 minutes or less, more preferably 10 minutes or less, and even more preferably 5 minutes or less. In this case, the time when the foamy composition first comes into contact with tableware and/or hard articles around the kitchen may be the beginning of the leaving.
In addition, the temperature at the time of leaving is room temperature, for example, 10° C. or higher and 30° C. or lower.

In the cleaning method of the present invention, using a spray means, the liquid detergent composition is sprayed into a state of foam having a foam specific volume of 2 mL/g or more, and tableware and stains containing food-derived liquid oil are adhered. / Or contacting hard objects around the kitchen 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 product obtained by filling a container equipped with a sprayer having a foam-forming mechanism, and the liquid detergent composition is in the state of foam, which is derived from food. More preferably, it is brought into contact with dishware and/or hard items around the kitchen that are contaminated with liquid oil. 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 tableware and/or hard articles around the kitchen, preferably tableware.
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.

The materials of tableware and/or hard articles around the kitchen, which are objects of the cleaning method of the present invention, include plastics (including silicone resin and the like), metals, pottery, wood, and combinations thereof. The cleaning method of the present invention can effectively clean stains containing liquid oil originating from food adhering to these tableware and/or hard articles around the kitchen.

As described above, liquid oil adhering to hydrophobic materials such as plastic is a stain that is difficult to remove. It shows a cleansing effect. INDUSTRIAL APPLICABILITY The present invention is suitable as a method for cleaning plastic tableware and/or hard articles around the kitchen. 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, preferably, the liquid detergent composition used in the present invention is directly brought into contact with tableware and/or hard articles around the kitchen in a state of foam having a foam specific volume of 2 mL/g or more without being diluted. Let 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 tableware and/or the hard articles around the kitchen without applying external force such as mechanical force, if necessary, scrubbing may be performed.
Furthermore, in the cleaning method of the present invention, since the foamy liquid detergent composition is applied to the tableware and/or the hard articles around the kitchen and left as it is, the composition is applied to the dishes and/or the hard articles around the kitchen. can be retained for a long time.

The cleaning method of the present invention includes a step of rinsing the tableware and/or hard articles around the kitchen that have been brought into contact with the liquid cleaning composition with water, preferably the tableware and/or the hard article that has been in contact with the liquid cleaning composition. Including the step of rinsing the hard articles around the kitchen with water after leaving them.

<Liquid detergent composition for foam application>
The present invention contains 0.5% by mass or more and 10% by mass or less of component (a), 0.1 ppm or more and 1000 ppm or less of component (b) as an enzyme protein, component (c) and water, and as component (a) Foam coating containing component (a1), wherein (a1)/(a), which is the mass ratio of the content of component (a) to the content of component (a1), is 0.5 or more and 1.0 or less It relates to a liquid detergent composition for 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), and (c) 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. 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 tableware and/or hard articles around the kitchen.

As the liquid detergent composition for foam application of the present invention,
(a) 0.5% by mass or more and 10% by mass or less of component, (b) component as enzyme protein of 0.1 ppm or more and 1000 ppm or less, (c) component and water,
(a) contains component (a1) as component,
(a1)/(a), which is the mass ratio of the content of component (a) to the content of component (a1), is 0.5 or more and 1.0 or less,
As components (a1), (a11) a nonionic surfactant having an HLB of 10.5 or less (excluding (a12) component) [hereinafter referred to as component (a11)], and (a12) having 8 to 18 carbon atoms containing an alkyl glycoside-type nonionic surfactant [hereinafter referred to as component (a12)] having an alkyl group and having an average degree of condensation of sugar such as glucose of 1 or more and 3 or less;
(a1)/(a), which is the mass ratio between the content of component (a) and the content of component (a11), is 0.3 or more and 0.95 or less,
(c)/(a11), which is the mass ratio of the content of component (c) to the content of component (a11), is 2 or more and 8 or less,
Viscosity at 20 ° C. is 20 mPa s or less,
A liquid detergent composition (I) for foam application can be mentioned. The liquid detergent composition (I) of the present invention described in the cleaning method of the present invention may be the liquid detergent composition (I) for foam application of the present invention.

Specific examples and preferred examples of the components (a11) and (a12) in the liquid detergent composition (I) for foam application of the present invention are the same as those of the liquid detergent composition (I) of the present invention. The matters described for the liquid detergent composition (I) of the present invention can be applied to the liquid detergent composition for foam application (I) of the present invention.

Liquid detergent compositions shown in the table were prepared using the following ingredients, and foam specific volume, detergency and storage stability were evaluated by the following methods. The results are shown in the table. The liquid detergent compositions shown in the table were adjusted to pH 7 (20°C) with citric acid and 48% NaOH aqueous solution. In addition, the mass % of the compounding ingredients in the table are all numerical values based on the active ingredients.

<(a) component>
(a1) component Nonionic surfactant (1): Plantacare 2000UP, BASF, decyl glucoside [corresponding to (a1-1) component and (a12) component]
- Nonionic surfactant (2): Amphithol 20N, Kao Corporation, Lauryl dimethylamine oxide [corresponding to component (a1-2)]
・Nonionic surfactant (3-1): Softanol 90, Nippon Shokubai Co., Ltd., secondary alcohol ethoxylate, ethoxylate average added mole number 9.0 [corresponding to (a1-3) component] HLB 13.3
-Nonionic surfactant (3-2): Softanol 33, Nippon Shokubai Co., Ltd., secondary alcohol ethoxylate, ethoxylate average addition mole number 3.3 mol [(a1-3) component and (a11-2) component Applicable] HLB8.6
- Nonionic surfactant (4): Penetol GE-EH, Kao Corporation, 2-ethylhexyl glyceryl ether [corresponding to (a1-4) component and (a11-1) component], HLB 7.4
- Nonionic surfactant (5): Emulgen 109P, Kao Corporation, polyoxyethylene lauryl ether, ethoxylate average addition mole number 9.0 mol [other (a1) component] HLB 13.6,
· Nonionic surfactant (6): Aminone PK-02S, Kao Corporation, palm kernel oil fatty acid diethanolamide (HLB 5.5, HLB is the value obtained by the above experimental method) [(a11-4) component Applicable〕
· Nonionic surfactant (7): Amit 102, Kao Corporation, N-lauryl-N,N-diethanolamine (HLB 6.3, HLB is the value obtained by the above experimental method) [(a11-5) component corresponds to]
・ Nonionic surfactant (8): Emsol L-10V, Kao Corporation, sorbitan monolaurate (HLB 8.6) [corresponding to (a11-3) component]
(a2) Component Amphoteric Surfactant (1): Amphithol 20HD, Kao Corporation, N-lauryl-N,N-dimethyl-N-[2-hydroxy-3-sulfopropyl]sulfobetaine (a3) Component Yin Ionic surfactant (1): sodium lauryl sulfate, Wako Pure Chemical Industries, Ltd., reagent/anionic surfactant (2): Hostapur SAS 60, Clariant, sodium sec-alkyl (C14-17) sulfonate

<(b) component>
・Lipase: Lipex Prime 100L, Novozymes ・Protease: KAP 8.0 L-Q (195Q), Kao Corporation ・Amylase: Termamyl Ultra 300L, Novozymes

<(c) component>
・Water-soluble solvent (1): diethylene glycol monobutyl ether, BDG-NS, Nippon Nyukazai Co., Ltd., ClogPow 0.66
- Water-soluble solvent (2): dipropylene glycol monobutyl ether, DPNB, Nippon Nyukazai Co., Ltd., ClogPow 0.07
- Water-soluble solvent (3): ethanol, Japan Synthetic Alcohol Co., Ltd., ClogPow 0.92
- Water-soluble solvent (4): propylene glycol, ClogPow-1.1

(1) Foam Specific Volume A trigger-type spray container (Cucute Clear Foam Spray, manufactured by Kao Corporation) was filled with the liquid detergent composition, 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 graduated cylinder immediately after ejection was visually read. The volume (mL) of foam immediately 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)/(a)

(2) 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). On one side of the polypropylene test piece, a soiled piece having a mass ratio of rapeseed oil and beef tallow of 9/1 was uniformly applied so that the amount of soiling was 0.08 to 0.12g. . 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 composition was contacted in a form of foam approaching the foam specific volume shown in the table. 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

(3) Storage stability After preparing the liquid detergent composition, it was stored at 5°C. By visual observation, the number of days during which the appearance was maintained in a transparent and dissolved state was recorded. When a clear change in appearance such as separation or turbidity was observed, the storage stability was judged to be unsatisfactory, ie, the state in which the appearance was transparent and dissolved could not be maintained.

*1 Nonionic surfactant (1) corresponds to component (a12).
*2 Nonionic surfactant (3-2) corresponds to component (a11-2).
*3 Nonionic surfactant (6) corresponds to component (a11-4).
*4 Nonionic surfactant (7) corresponds to component (a11-5).
*5 Nonionic surfactant (8) corresponds to component (a11-3).

Claims (16)

(a) Surfactant [hereinafter referred to as component (a)] is 0.5% by mass or more and 11% by mass or less, (b) Enzyme [hereinafter referred to as component (b)] is 0.1 ppm or more and 1000 ppm or less as an enzyme protein , (c) contains a water-soluble solvent [hereinafter referred to as component (c)] and water, and contains (a1) a nonionic surfactant [hereinafter referred to as component (a1)] as component (a), and (a ) and (a1), which is the mass ratio (a1)/(a), of 0.5 or more and 1.0 or less, and a foam specific volume of 2 mL/ A method for washing tableware and/or a hard article around the kitchen, wherein the foam is brought into contact with the dishware and/or the hard article around the kitchen on which dirt containing food-derived liquid oil is adhered in a state of foam of g or more,
The liquid detergent composition contains, as component (a1), an alkyl glycoside-type nonionic surfactant (a1-1) having an alkyl group having 8 to 18 carbon atoms [hereinafter referred to as component (a1-1)]. and (a1-2) a tertiary amine oxide surfactant in which one of the groups bonded to the nitrogen atom is an alkyl group having 8 or more and 18 or less carbon atoms, and the rest are alkyl groups having 1 or more and 3 or less carbon atoms [ hereinafter referred to as (a1-2) component] and (a1-3) branched fatty alcohol or secondary fatty alcohol having 9 to 18 carbon atoms in the alkyl group a nonionic surfactant to which an average of 3 to 30 moles of an alkylene oxide having a number 2 or 3 is added [hereinafter referred to as component (a1-3)] and (a1-4) an alkyl group having 8 to 18 carbon atoms and one or more nonionic surfactants selected from one alkyl glyceryl ether surfactant (a1-4) [hereinafter referred to as component (a1-4)],
The sum of the content of component (a1-1) and the content of component (a1-2), the content of component (a1-3) and the content of component (a1-4) in the liquid detergent composition [(a1-3) + (a1-4)] / [(a1-1) + (a1-2)] is 0.2 or more and 5 or less,
A method for cleaning tableware and/or hard articles around the kitchen. The liquid detergent composition contains, as components (a1), (a11) a nonionic surfactant having an HLB of 10.5 or less (excluding component (a12)) [hereinafter referred to as component (a11)], and (a12). ) contains an alkyl glycoside-type nonionic surfactant [hereinafter referred to as component (a12)] having an alkyl group having 8 to 18 carbon atoms and an average degree of condensation of sugar of 1 to 3, and component (a) (a11) / (a), which is the mass ratio between the content of and the content of component (a11), is 0.3 or more and 0.95 or less, and the content of component (c) with respect to the content of component (a11) 2. The method for cleaning tableware and/or hard articles around the kitchen according to claim 1 , wherein the mass ratio (c)/(a11) is 1 or more and 10 or less, and the viscosity at 20° C. is 20 mPa·s or less. . 3. The method for cleaning tableware and/or hard articles around the kitchen according to claim 1 or 2 , wherein the component (c) is a water-soluble solvent having a LogPow of 0 or more and 1.5 or less. Tableware according to any one of claims 1 to 3 , which contains one or more surfactants selected from anionic surfactants, amphoteric surfactants, and zwitterionic surfactants as component (a). / Or a method for cleaning hard articles around the kitchen. 5. The method for cleaning tableware and/or hard articles around the kitchen according to any one of claims 1 to 4 , wherein the viscosity of the liquid detergent composition at 20°C is 10 mPa·s or less. The tableware and/or around the kitchen according to any one of claims 1 to 5 , wherein after the liquid detergent composition is brought into contact with the hard articles around the tableware and/or the kitchen, it is left without applying an external force. A method for cleaning hard articles. 7. The method according to any one of claims 1 to 6 , wherein after the liquid detergent composition is brought into contact with the tableware and/or hard articles around the kitchen, the tableware and/or the hard articles around the kitchen are rinsed with water. A method for cleaning tableware and/or hard articles around the kitchen. The method for cleaning tableware and/or hard articles around the kitchen according to any one of claims 1 to 7 , wherein the liquid cleaning composition has a pH of 4 or more and 11 or less. (a) Surfactant [hereinafter referred to as component (a)] is 0.5% by mass or more and 11% by mass or less, (b) Enzyme [hereinafter referred to as component (b)] is 0.1 ppm or more and 1000 ppm or less as an enzyme protein , (c) a water-soluble solvent [hereinafter referred to as component (c)] and water,
(a) contains (a1) a nonionic surfactant [hereinafter referred to as (a1) component] as a component,
(a1)/(a), which is the mass ratio of the content of component (a) to the content of component (a1), is 0.5 or more and 1.0 or less ,
Component (a1) includes (a1-1) an alkyl glycoside-type nonionic surfactant having an alkyl group having 8 to 18 carbon atoms [hereinafter referred to as component (a1-1)] and (a1-2) a nitrogen atom. A tertiary amine oxide surfactant in which one of the groups bonded to is an alkyl group having 8 to 18 carbon atoms and the other is an alkyl group having 1 to 3 carbon atoms [hereinafter, component (a1-2) and (a1-3) a branched fatty alcohol or secondary fatty alcohol having an alkyl group having 9 to 18 carbon atoms and an alkylene oxide having 2 or 3 carbon atoms. A nonionic surfactant (hereinafter referred to as component (a1-3)) to which an average of 3 to 30 mol is added and (a1-4) an alkyl glyceryl ether type interface having one alkyl group having 8 to 18 carbon atoms and one or more nonionic surfactants selected from active agent (a1-4) [hereinafter referred to as component (a1-4)],
It is the mass ratio of the total content of the component (a1-1) and the content of the component (a1-2) to the total content of the component (a1-3) and the content of the component (a1-4). [(a1-3) + (a1-4)] / [(a1-1) + (a1-2)] is 0.2 or more and 5 or less,
A liquid detergent composition for foam application. As components (a1), (a11) a nonionic surfactant having an HLB of 10.5 or less (excluding (a12) component) [hereinafter referred to as component (a11)], and (a12) having 8 to 18 carbon atoms An alkyl glycoside type nonionic surfactant having an alkyl group and an average degree of condensation of sugar of 1 or more and 3 or less [hereinafter referred to as component (a12)], the content of component (a) and component (a11) (a11) / (a), which is the mass ratio of the content of the component (c 10. The liquid detergent composition for foam application according to claim 9 , wherein )/(a11) is 1 or more and 10 or less, and the viscosity at 20°C is 20 mPa·s or less. 11. The liquid detergent composition for foam application according to claim 9 or 10 , wherein component (c) is a water-soluble solvent having a LogPow of 0 or more and 1.5 or less. The foam coating according to any one of claims 9 to 11 , containing one or more surfactants selected from anionic surfactants, amphoteric surfactants, and zwitterionic surfactants as component (a). Liquid detergent composition for. The liquid detergent composition for foam application according to any one of claims 9 to 12 , wherein the viscosity of the liquid detergent composition at 20°C is 10 mPa·s or less. The liquid detergent composition for foam application according to any one of claims 9 to 13 , which has a pH of 4 or more and 11 or less at 20°C. The liquid detergent composition for foam application according to any one of claims 9 to 14 , which is used in a foam state having a foam specific volume of 2 mL/g or more. The liquid detergent composition for foam application according to any one of claims 9 to 15 , which is used for tableware and/or hard articles around the kitchen.