Detergent composition for hard articles

Abstract

To provide: a detergent composition for hard articles having excellent cleaning durability when cleaning hard articles with foams generated; a method for cleaning hard articles; and a method for enhancing the foamability of a detergent composition for hard articles.SOLUTION: There is provided a detergent composition for hard articles which comprises (a) a nonionic surfactant containing a polyoxyalkylene alkyl or alkenylamine having an alkyl or alkenyl group having 8 or more and 18 or less carbon atoms and having an average addition mole number of oxyalkylene group of 1 or more and 8 or less, (b) a quaternary ammonium salt-type surfactant and water, wherein the content of an anionic surfactant or an amphoteric surfactant is 0 mass% or more and 20 mass% or less in the total amount of the surfactants.SELECTED DRAWING: None

Description

[Technical Field]

[0001] The present invention relates to a hard article cleaning composition, a method for cleaning hard articles, and a method for enhancing the foaming properties of a hard article cleaning composition. [Background technology]

[0002] Generally, cleaners used in kitchens, such as those used on ranges, ovens, walls and floors around ranges, and ventilation fans, as well as cleaners used in food processing equipment, contain surfactants, solvents, and alkaline agents to remove oil stains that have deteriorated due to the effects of heat, sunlight, oxygen in the air, and other factors. However, alkaline cleaners have issues, such as being highly irritating to the skin, and require careful handling. Furthermore, the number of part-time workers and other workers who are not accustomed to handling strong alkalis is increasing. Therefore, there is a strong demand for technology that can clean stubborn, difficult-to-remove denatured oil stains with easy-to-use neutral cleaners.

[0003] Patent Document 1 discloses a neutral detergent composition containing a mono- or polyoxyethylene alkyl or alkenyl amine and a specific solvent. Patent Document 2 discloses a technique for a floor cleaner containing a cationic surfactant and a mono- or polyoxyethylene alkyl or alkenylamine. Patent Document 3 discloses a technology for a laundry detergent containing a cationic surfactant and a mono- or polyoxyethylene alkyl or alkenylamine. [Prior art documents] [Patent documents]

[0004] [Patent Document 1] Japanese Patent Application Publication No. 2020-97711 [Patent Document 2] Japanese Patent Application Laid-Open No. 2001-247892 [Patent Document 3] Japanese Patent Application Laid-Open No. 2015-101674 Summary of the Invention [Problem to be solved by the invention]

[0005] The body wash detergent composition of Patent Document 1 has excellent detergency for removing denatured oily soils. When such a body wash detergent composition is used for hard articles, it is generally brought into contact with the hard article in the form of a foam, from the viewpoints of detergency, convenience, and penetration into soiling. Furthermore, a cleaning method in which such a body wash detergent composition is applied to a flexible material such as a sponge, and the foamed foam is brought into contact with the hard article and scrubbed is frequently adopted. Therefore, it is desirable for the detergent composition to have excellent cleaning durability so that a large number of hard articles can be cleaned with the foam by applying it to a flexible material once. The detergent composition of Patent Document 1 also has good foaming properties, but further improvement is desired. Furthermore, the detergent compositions described in Patent Documents 2 and 3 do not require foaming power, and there is no suggestion that the cationic surfactant acts as a foam booster.

[0006] The present invention provides a detergent composition for hard articles that has excellent cleaning durability when cleaning hard articles with the foamed foam, a method for cleaning hard articles, and a method for enhancing the foaming properties of a detergent composition for hard articles. [Means for solving the problem]

[0007] The present invention relates to a hard article detergent composition comprising (a) a nonionic surfactant [hereinafter referred to as component (a)] containing a polyoxyalkylene alkyl or alkenylamine [hereinafter referred to as component (a1)] having an alkyl or alkenyl group having from 8 to 18 carbon atoms and having an average number of moles of oxyalkylene groups added of from 1 to 8 [hereinafter referred to as component (a)], (b) a quaternary ammonium salt surfactant [hereinafter referred to as component (b)], and water, wherein the content of (c) anionic surfactant and amphoteric surfactant [hereinafter referred to as component (c)] is from 0 to 20% by mass of the total amount of surfactants.

[0008] The present invention also relates to a method for cleaning hard articles, which comprises foaming the detergent composition for hard articles of the present invention and contacting the foamed detergent composition with soiled hard articles.

[0009] The present invention also relates to a method for enhancing the foaming properties of a hard article detergent composition, which comprises adding component (b) to a hard article detergent composition containing component (a) and water. [Effects of the Invention]

[0010] According to the present invention, there are provided a detergent composition for hard articles, a method for cleaning hard articles, and a method for enhancing the foaming properties of a detergent composition for hard articles, which have excellent cleaning durability when cleaning hard articles with the foamed foam. DETAILED DESCRIPTION OF THE INVENTION

[0011] Although the mechanism of action by which the effects of the present invention are manifested has not necessarily been fully elucidated, the applicant believes that it is as follows. The specific polyoxyalkylene alkyl or alkenyl amine, component (a1) of the present invention, is a surfactant with excellent detergency but poor foaming ability. Generally, to increase foaming ability in detergent compositions, an anionic surfactant with high foam-boosting properties, such as component (c), is added. However, the presence of an anionic surfactant in the present invention tends to impair the detergency of component (a1), and the composition also fails to foam. This is thought to be due to the cationic nature of component (a1), which forms a complex with component (c). On the other hand, the quaternary ammonium salt surfactant, which is component (b) of the present invention, is generally not considered to act as a foam booster, but by using component (a1) in combination with component (b), it is possible to improve the foaming ability of the detergent composition without forming a complex with component (a1).This is surprising. However, the effects of the present invention are not limited to the mechanism of action shown here.

[0012] <Cleaning composition for hard articles> <Component (a)> The detergent composition for hard articles of the present invention contains, as component (a), (a1) a nonionic surfactant containing a polyoxyalkylene alkyl or alkenyl amine having alkyl or alkenyl groups having from 8 to 18 carbon atoms and an average number of moles of oxyalkylene groups added of from 1 to 8.

[0013] The component (a1) is a polyoxyalkylene alkyl or alkenyl amine having alkyl or alkenyl groups with 8 to 18 carbon atoms and an average number of moles of oxyalkylene groups added of 1 to 5.

[0014] The number of carbon atoms in the alkyl or alkenyl group of component (a1) is 8 or more, preferably 10 or more, and 18 or less, preferably 16 or less, more preferably 14 or less, from the viewpoint of foam persistence during washing. The group contained in the component (a1) is preferably an alkyl group. The oxyalkylene group is preferably an oxyalkylene group having 2 carbon atoms and / or an oxyalkylene group having 3 carbon atoms, i.e., an oxyethylene group and / or an oxypropylene group, and more preferably an oxyethylene group. Component (a1) preferably contains an oxyethylene group as the oxyalkylene group. The average number of moles of oxyalkylene groups added in the component (a1) is 1 or more, preferably 2 or more, and 8 or less, preferably 7 or less, more preferably 5 or less, from the viewpoints of foam persistence during washing and appearance transparency.

[0015] Examples of the component (a1) include alkylene oxide adducts of monoamines having alkyl or alkenyl groups with 8 to 18 carbon atoms and an average number of moles of oxyalkylene groups added of 1 to 8.

[0016] Examples of the component (a1) include compounds represented by the following general formula (a1).

[0017] [ka]

[0018] [In the formula, R 1a is an alkyl or alkenyl group having 8 to 18 carbon atoms, EO is an ethyleneoxy group, m and n are the average number of moles added and are independently a number of 0 to 8, and the sum of m and n is a number of 1 to 8.

[0019] In formula (a1), R 1a From the viewpoint of foam persistence during washing, R is 8 or more, preferably 10 or more, and 18 or less, preferably 16 or less, more preferably 14 or less. 1a is preferably an alkyl group. The sum of m and n is 1 or more, preferably 2 or more, and 8 or less, preferably 7 or less, more preferably 5 or less, from the viewpoints of foam persistence during washing and appearance transparency.

[0020] In addition to the component (a1), the hard article detergent composition of the present invention preferably contains, as component (a), one or more surfactants selected from the group consisting of (a2) amine oxide surfactants (hereinafter referred to as component (a2)), (a3) ​​alkyl glycoside surfactants (hereinafter referred to as component (a3)), and (a4) alkyl glyceryl ether surfactants (hereinafter referred to as component (a4)), from the viewpoints of foam persistence during cleaning and foaming ability, and more preferably contains the components (a2), (a3), and (a4).

[0021] The amine oxide surfactant of component (a2) is preferably a compound of the following general formula (a2):

[0022] [ka]

[0023] [In the formula, R 2a represents a hydrocarbon group having 8 to 18 carbon atoms, preferably an alkyl or alkenyl group, more preferably an alkyl group; R 3a and R 4aare the same or different and represent an alkyl group having 1 to 3 carbon atoms; D represents an -NHC(=O)- group or a -C(=O)NH- group; E represents an alkylene group having 1 to 5 carbon atoms; q and p represent q=0 and p=0 or q=1 and p=1.

[0024] In the above general formula (a2), when q=1 and p=1, R 2a From the viewpoint of foam persistence during washing and foaming ability, R is preferably a hydrocarbon group having 7 or more, preferably 9 or more, and 17 or less, preferably 15 or less carbon atoms, preferably an alkyl or alkenyl group, more preferably an alkyl group. 2a From the viewpoints of foam persistence during washing, aesthetic appearance, and foaming ability, R is preferably a hydrocarbon group having 8 or more carbon atoms, preferably 10 or more carbon atoms, and 18 or less carbon atoms, preferably 16 or less carbon atoms, preferably an alkyl or alkenyl group, more preferably an alkyl group. In the present invention, it is preferable that q=0 and p=0. R 3a and R 4a is preferably a methyl group having one carbon atom, from the viewpoints of foam persistence during washing, aesthetic appearance, and foaming ability.

[0025] Preferable specific examples of component (a2) include: (1) Alkyl (carbon number 8 to 18) dialkyl (carbon number 1 to 3) amine oxides: capryl dimethylamine oxide, caprylic dimethylamine oxide, lauryl dimethylamine oxide, myristyl dimethylamine oxide, palmityl dimethylamine oxide, stearyl dimethylamine oxide, etc. (2) Amide group-containing amine oxides (compounds in which q=1 and p=1 in the general formula (a2)): caprylic acid amidopropyl dimethylamine oxide, capric acid amidopropyl dimethylamine oxide, lauric acid amidopropyl dimethylamine oxide, myristic acid amidopropyl dimethylamine oxide, etc. These may be used alone or in combination of two or more.

[0026] The alkylglycoside surfactant of component (a3) ​​is preferably a compound represented by the following general formula (a3). R 5a -(OR 6a ) x G y (a3) [In the formula, R 5a R is a hydrocarbon group having 8 or more carbon atoms, preferably 10 or more carbon atoms, and 18 or less carbon atoms, preferably 16 or less carbon atoms, preferably an alkyl group or an alkenyl group, more preferably an alkyl group. 6a is an alkylene group having 2 to 4 carbon atoms, preferably an ethylene group or a propylene group, more preferably an ethylene group; G is a residue derived from a reducing sugar; x is a number having an average value of 0 to 6; and y is a number having an average value of 1 to 10, preferably 5 or less, more preferably 2 or less.

[0027] In the compound of general formula (a3), G is a residue derived from a reducing sugar, and the reducing sugar used as the raw material for G may be either an aldose or a ketose. Examples of the reducing sugar used as the raw material for G include triose (having three carbon atoms), tetrose (having four carbon atoms), pentose (having five carbon atoms), and hexose (having six carbon atoms). Specific examples of the aldose include apiose, arabinose, galactose, glucose, lyxose, mannose, gulose, aldose, idose, talose, and xylose. Specific examples of the ketose include fructose. Among these, the reducing sugar used as the raw material for G in the present invention is, from the viewpoints of foam retention during washing and foaming ability, an aldopentose (having five carbon atoms) or an aldohexose (having six carbon atoms), more preferably glucose.

[0028] From the viewpoints of foam persistence during washing and aesthetic appearance, the alkyl glyceryl ether surfactant of component (a4) is preferably an alkyl glyceryl ether surfactant having a hydrocarbon group of 6 or more, preferably 8 or more, and 12 or less, preferably 10 or less, carbon atoms, preferably an alkyl or alkenyl group, more preferably an alkyl group, and even more preferably a branched alkyl group.

[0029] <(b) Component> The detergent composition for hard articles of the present invention contains a quaternary ammonium salt surfactant as component (b). The quaternary ammonium salt surfactant of component (b) is preferably at least one selected from the group consisting of compounds represented by the following general formula (b1) and compounds represented by the following general formula (b2).

[0030] [ka]

[0031] [In the formula, R 1b is an aliphatic hydrocarbon group having 8 to 18 carbon atoms, and R 2b is a group selected from an aliphatic hydrocarbon group having from 8 to 18 carbon atoms, an alkyl group having from 1 to 3 carbon atoms, and a hydroxyalkyl group having from 1 to 3 carbon atoms, and R 3b and R 4b are each independently a group selected from an alkyl group having 1 to 3 carbon atoms and a hydroxyalkyl group having 1 to 3 carbon atoms, and X - is an anion.

[0032] [ka]

[0033] [In the formula, R 5b is an aliphatic hydrocarbon group having 8 to 18 carbon atoms, and R 6b and R 7b are each independently a group selected from an alkyl group having 1 to 3 carbon atoms and a hydroxyalkyl group having 1 to 3 carbon atoms, and X - is an anion.

[0034] In general formula (b1), R 1b From the viewpoint of foam persistence during washing, the number of carbon atoms in R is preferably 9 or more, more preferably 10 or more, even more preferably 12 or more, and preferably 16 or less. 1bis preferably an alkyl group or an alkenyl group, and is preferably an alkyl group. In general formula (b1), R 2b is a group selected from aliphatic hydrocarbon groups having 8 to 18 carbon atoms, alkyl groups having 1 to 3 carbon atoms, and hydroxyalkyl groups having 1 to 3 carbon atoms. R 2b is an aliphatic hydrocarbon group having 8 to 18 carbon atoms, R 2b From the viewpoint of foam persistence during washing, is preferably an alkyl or alkenyl group having a carbon number of 8 or more, and preferably 14 or less, more preferably 12 or less, and is preferably an alkyl group.

[0035] In general formula (b1), R 3b and R 4b are each independently a group selected from an alkyl group having 1 to 3 carbon atoms and a hydroxyalkyl group having 1 to 3 carbon atoms. 3b and R 4b are preferably each independently a group selected from alkyl groups having 1 to 3 carbon atoms. Examples of alkyl groups having 1 to 3 carbon atoms include a methyl group, an ethyl group, and a propyl group. Examples of hydroxyalkyl groups having 1 to 3 carbon atoms include a hydroxymethyl group, a hydroxyethyl group, and a hydroxypropyl group.

[0036] In general formula (b1), X - is an anion. Examples of anions include halogen ions such as chloride ions, bromide ions, and iodide ions. Examples of anions also include alkyl sulfate ions having 1 to 3 carbon atoms such as methyl sulfate ions, ethyl sulfate ions, and propyl sulfate ions.

[0037] Preferred compounds of the general formula (b1) include one or more selected from N-alkyl-N,N,N-trimethylammonium salts in which the alkyl group has 12 or more and 18 or less carbon atoms, N,N-dialkyl-N,N-dimethyl-ammonium salts in which the alkyl group has 8 or more and 16 or less carbon atoms, and N-alkyl-N,N-dimethyl-N-ethylammonium salts in which the alkyl group has 12 or more and 16 or less carbon atoms.

[0038] In general formula (b2), R 5b is an aliphatic hydrocarbon group having 8 to 18 carbon atoms. 5b From the viewpoint of foam persistence during washing, the number of carbon atoms in R is preferably 8 or more, and preferably 18 or less, more preferably 16 or less. 5b is preferably an alkyl group or an alkenyl group, and is preferably an alkyl group.

[0039] In general formula (b2), R 6b and R 7b are each independently a group selected from an alkyl group having 1 to 3 carbon atoms and a hydroxyalkyl group having 1 to 3 carbon atoms. 6b and R 7b are preferably each independently a group selected from alkyl groups having 1 to 3 carbon atoms. Examples of alkyl groups having 1 to 3 carbon atoms include a methyl group, an ethyl group, and a propyl group. Examples of hydroxyalkyl groups having 1 to 3 carbon atoms include a hydroxymethyl group, a hydroxyethyl group, and a hydroxypropyl group.

[0040] In general formula (b2), X - is an anion. Examples of anions include halogen ions such as chloride ion, bromide ion, and iodide ion. Examples of anions also include alkyl sulfate ions having 1 to 3 carbon atoms such as methyl sulfate ion, ethyl sulfate ion, and propyl sulfate ion.

[0041] Specific examples of the compound of general formula (b2) include N-dodecyl-N,N-dimethyl-N-benzyl ammonium salt, N-tridecyl-N,N-dimethyl-N-benzyl ammonium salt, N-tetradecyl-N,N-dimethyl-N-benzyl ammonium salt, N-pentadecyl-N,N-dimethyl-N-benzyl ammonium salt, N-hexadecyl-N,N-dimethyl-N-benzyl ammonium salt, N-dodecyl-N,N-diethyl-N-benzyl ammonium salt, N-tridecyl-N,N-diethyl-N-benzyl ammonium salt, N-tetradecyl-N,N-diethyl-N-benzyl ammonium salt, and N-hexadecyl-N,N-diethyl-N-benzylammonium salt, N-dodecyl-N-methyl-N-ethyl-N-benzylammonium salt, N-tridecyl-N-methyl-N-ethyl-N-benzylammonium salt, N-tetradecyl-N-methyl-N-ethyl-N-benzylammonium salt, N-pentadecyl-N-methyl-N-ethyl-N-benzylammonium salt, and N-hexadecyl-N-methyl-N-ethyl-N-benzylammonium salt.

[0042] <Composition, etc.> From the viewpoint of foam persistence during washing, the detergent composition for hard articles of the present invention contains component (a) in an amount of preferably 0.5% by mass or more, more preferably 1% by mass or more, even more preferably 3% by mass or more, still more preferably 5% by mass or more, and preferably 30% by mass or less, more preferably 25% by mass or less, even more preferably 20% by mass or less, still more preferably 15% by mass or less, and still more preferably 10% by mass or less.

[0043] In the hard article detergent composition of the present invention, the content of component (a1) in component (a) is, from the viewpoint of foam persistence during washing, preferably 10% by mass or more, more preferably 15% by mass or more, even more preferably 20% by mass or more, still more preferably 21% by mass or more, and preferably 100% by mass or less, more preferably 70% by mass or less, even more preferably 50% by mass or less, still more preferably 40% by mass or less, and still more preferably 30% by mass or less.

[0044] From the viewpoint of foam persistence during washing, the hard article detergent composition of the present invention contains component (b) in an amount of preferably 0.01% by mass or more, more preferably 0.05% by mass or more, even more preferably 0.1% by mass or more, still more preferably 0.5% by mass or more, still more preferably 1% by mass or more, still more preferably 1.2% by mass or more, and preferably 10% by mass or less, more preferably 5% by mass or less, even more preferably 3% by mass or less, still more preferably 2% by mass or less, and still more preferably 1.8% by mass or less. In the present invention, the mass of component (b) is specified as a value converted into a chlorine salt.

[0045] In the hard article detergent composition of the present invention, the mass ratio (a1) / (b) of the content of the component (a1) to the content of the component (b) is, from the viewpoint of foam persistence during washing, preferably 0.1 or more, more preferably 0.5 or more, even more preferably 1 or more, and preferably 100 or less, more preferably 50 or less, even more preferably 300 or less, still more preferably 10 or less, and still more preferably 2 or less.

[0046] The hard article detergent composition of the present invention may contain an anionic surfactant and an amphoteric surfactant as component (c), but the content thereof is limited. In the present invention, the amphoteric surfactant excludes component (a2). Examples of anionic surfactants include alkyl sulfates, polyoxyalkylene alkyl ether sulfates, alkanesulfonates, alkylbenzenesulfonates, higher fatty acids or salts thereof, polyoxyethylene alkyl ether carboxylic acids or salts thereof, N-acylamino acids or salts thereof, alkyl phosphates, polyoxyethylene alkyl ether phosphates, etc. Examples of salts include alkali metal salts such as sodium salts and potassium salts. Examples of amphoteric surfactants include N-alkanoylaminopropyl-N,N-dimethyl-N-carboxymethylammonium betaine, N-alkyl-N,N-dimethyl-N-carboxymethylammonium betaine, N-alkyl-N,N-dimethyl-N-sulfopropylammonium sulfobetaine, N-alkyl-N,N-dimethyl-N-(2-hydroxysulfopropyl)ammonium sulfobetaine, N-alkanoylaminopropyl-N,N-dimethyl-N-sulfopropylammonium sulfobetaine, and N-alkanoylaminopropyl-N,N-dimethyl-N-(2-hydroxysulfopropyl)ammonium sulfobetaine.

[0047] In the hard article detergent composition of the present invention, the total amount of surfactants is, from the viewpoint of foam persistence during washing, preferably 1% by mass or more, more preferably 5% by mass or more, even more preferably 8% by mass or more, and preferably 30% by mass or less, more preferably 20% by mass or less, even more preferably 15% by mass or less, and still more preferably 12% by mass or less.

[0048] In the hard article detergent composition of the present invention, the content of component (c) in the total amount of surfactants is preferably 0% by mass or more and 20% by mass or less, preferably 10% by mass or less, more preferably 5% by mass or less, even more preferably 3% by mass or less, still more preferably 1% by mass or less, and still more preferably 0.5% by mass or less, from the viewpoint of foam persistence during washing. In the present invention, when an anionic surfactant is contained as component (c), the mass thereof is expressed in terms of the sodium salt. The cleaning composition for hard articles of the present invention may not contain component (c).

[0049] In the hard article detergent composition of the present invention, the content of component (b) in the total amount of surfactants is, from the viewpoint of foam persistence during washing, preferably 1% by mass or more, more preferably 5% by mass or more, even more preferably 10% by mass or more, still more preferably 12% by mass or more, and preferably 50% by mass or less, more preferably 30% by mass or less, even more preferably 20% by mass or less, and still more preferably 17% by mass or less.

[0050] The hard article detergent composition of the present invention may contain a water-miscible organic solvent as component (d) from the viewpoint of viscosity adjustment and gel prevention of the composition. The water-miscible organic solvent referred to in the present invention refers to a solvent that dissolves 50 g or more in 1 L of ion-exchanged water at 25°C.

[0051] Examples of water-miscible organic solvents include (d1) alkanols such as ethanol, 1-propanol, 2-propanol, and 1-butanol, (d2) glycols such as propylene glycol, butylene glycol, and hexylene glycol, (d3) glycols such as diethylene glycol, triethylene glycol, tetraethylene glycol, dipropylene glycol, and tripropylene glycol, (d4) diethylene glycol monomethyl ether, diethylene glycol dimethyl ether, triethylene glycol monomethyl ether, diethylene glycol monoethyl ether, diethylene glycol monobutyl ether, diethylene glycol diethyl ether, dipropylene glycol monomethyl ether, dipropylene glycol monoethyl ether, tripropylene glycol monomethyl ether, 1-methoxy-2-propanol, 1-ethoxy-2-propanol, 1-methylglycerin ether, 2-methylglycerin ether, 1,3-dimethylglycerin ether, 1-ethylglycerin ether, and 1,3-dimethylglycerin ether. (d5) aromatic ethers such as 2-phenoxyethanol, diethylene glycol monophenyl ether, triethylene glycol monophenyl ether, polyethylene glycol monophenyl ether having an average molecular weight of about 480, phenoxypropylene glycol, 2-benzyloxyethanol, diethylene glycol monobenzyl ether; (d6) ethylene oxide and / or propylene oxide polymers having an average molecular weight of 500 to 5,000, specifically polypropylene glycol having an average molecular weight of 500 to 5,000, polyethylene glycol having a molecular weight of 500 to 5,000, oxypropylene having a molecular weight of 500 to 5,000, and oxyethylene copolymers (which may be block or random), and one or more of these may be used.

[0052] From the viewpoint of appearance transparency, component (d) is preferably one or more selected from diethylene glycol monobutyl ether, ethanol, propylene glycol, diethylene glycol, 2-phenoxyethanol, and polypropylene glycol having a molecular weight of 500 or more and 3000 or less, more preferably one or more selected from diethylene glycol monobutyl ether, ethanol, propylene glycol, and polypropylene glycol having a molecular weight of 500 or more and 3000 or less, and even more preferably one or more selected from diethylene glycol monobutyl ether and polypropylene glycol having a molecular weight of 500 or more and 3000 or less.

[0053] From the viewpoint of appearance transparency, the hard article detergent composition of the present invention contains component (d) in an amount of preferably 0.1% by mass or more, more preferably 0.5% by mass or more, even more preferably 1% by mass or more, and preferably 20% by mass or less, more preferably 10% by mass or less, even more preferably 5% by mass or less, and still more preferably 2% by mass or less.

[0054] The hard article detergent composition of the present invention may contain components such as surfactants, solvents, enzymes (protease, lipase, carbohydrate-degrading enzyme, etc.), hydrotropes, pH adjusters, thickeners, dispersants, viscosity modifiers, fragrances, colorants, antioxidants, and preservatives (excluding components (a), (a1), (b), (c), and (d)) within the scope of the present invention.

[0055] The hard article cleaning composition of the present invention contains water. The water is not particularly limited, but examples thereof include tap water, well water, ion-exchanged water, and distilled water. In the present invention, water is preferably used in an amount that makes up the remainder of the composition (amount that makes the total 100% by mass). The water content can be, for example, 50% by mass or more, further 60% by mass or more, and further 70% by mass or more of the composition.

[0056] From the viewpoint of ease of handling, the cleaning composition of the present invention has a pH at 20°C of preferably 3 or more, more preferably 5 or more, even more preferably 6 or more, and preferably 10 or less, more preferably 9 or less, even more preferably 8 or less. The pH value was determined by the glass electrode method.

[0057] The detergent composition for hard articles of the present invention can be used for various hard articles, but is preferably used for tableware and / or hard articles around the kitchen, and more preferably used for tableware.

[0058] Hard kitchen items are items used around the kitchen, specifically: (1) Storage areas for food, tableware, and cooking utensils, such as refrigerators and cupboards, (2) Food preparation areas such as drains, countertops, range hoods, sinks, gas ranges, and microwave ovens; (3) Floors and walls around the storage area and cooking area In the present invention, these are referred to as "hard kitchen items" for convenience. In addition, specifically, the tableware is: (i) Plates, bowls, and other tableware; (ii) Storage containers such as Tupperware and bottles, (iii) Cooking utensils such as knives, cutting boards, pots, frying pans, and fish grills; (iv) Food processors, mixers, and other cooking appliances In the present invention, these are referred to as "tableware" for convenience. Furthermore, the present invention preferably applies to an item selected from tableware, storage containers, cooking utensils, and cooking appliances, and more preferably applies to an item selected from plates, bowls, Tupperware, bottles, knives, cutting boards, pots, frying pans, fish grills, food processors, and mixers.

[0059] The hard article materials targeted by the present invention include plastics (including silicone resins), metals, ceramics, wood, and combinations thereof. The hard article detergent composition of the present invention can effectively remove oily stains from these hard articles.

[0060] <How to clean hard items> The present invention provides a method for cleaning hard articles, which comprises foaming the detergent composition for hard articles of the present invention and contacting the foamed detergent composition with a soiled hard article. The matters described for the detergent composition for hard articles of the present invention can be appropriately applied to the method for cleaning hard articles of the present invention.

[0061] In the method for cleaning hard articles of the present invention, the detergent composition for hard articles of the present invention is foamed and then brought into contact with the hard article. For example, the detergent composition for hard articles of the present invention can be foamed with a sponge or a sprayer equipped with a foam-forming mechanism and then brought into contact with the hard article.

[0062] The hard articles to be cleaned by the method for cleaning hard articles of the present invention include those described above in connection with the detergent composition for hard articles of the present invention. Tableware is one of the preferred hard articles.

[0063] In the method for cleaning hard articles of the present invention, the dirt adhered to the hard article may be oily dirt such as modified oily dirt, and may further be modified oily dirt.

[0064] The method for contacting the hard article detergent composition of the present invention with hard articles having oily stains or the like attached thereto is preferably a method of applying the hard article detergent composition of the present invention in foam form. Specifically, for example, a spray means is used for contacting the composition of the present invention with hard articles. That is, in the present invention, it is preferable to use a hard article detergent obtained by filling the hard article detergent composition of the present invention in a container equipped with a sprayer.

[0065] Examples of the method for applying the detergent composition in foam form include a method in which air is entrained into the detergent composition for hard articles of the present invention using the nozzle of a sprayer to generate foam, and a method in which the detergent composition for hard articles of the present invention is impregnated into a sponge or a fiber article for cleaning, and then the sponge or fiber article is rubbed several times to generate foam.

[0066] The present invention provides the hard article detergent of the present invention in a spray container, which is obtained by filling the hard article detergent composition of the present invention into a container equipped with a sprayer.

[0067] Examples of the container equipped with the sprayer in the spray-container hard article cleaner of the present invention include manual spray devices that do not use propellants, such as trigger-type spray containers and pump-type spray containers, and aerosols that use propellants. The container equipped with the sprayer is preferably a trigger-type spray that can spray or apply the contents in foam form, and more preferably a trigger-type spray that has a mechanism for forming foam from the contents (foam-forming mechanism).

[0068] When using a trigger-type spray equipped with a foam-forming mechanism, the spray-contained hard article cleaner of the present invention sprays preferably 0.5 mL or more, more preferably 1 mL or more, and preferably 30 mL or less, more preferably 15 mL or less, and even more preferably 5 mL or less of the composition in one operation.

[0069] In the method for cleaning hard articles of the present invention, the detergent composition for hard articles of the present invention is foamed and brought into contact with hard articles for cleaning. In the cleaning method of the present invention, dirt can be peeled off and cleaned from the hard articles by, for example, leaving the foamed foam applied, rubbing with a sponge or textile product, rinsing with running water, or the like. Rinsing can then be performed with running water, etc. The cleaning method of the present invention may be a hand-washing method, and hard articles such as tableware can be hand-washed in accordance with known techniques.

[0070] [Method for enhancing the foaming properties of a hard article cleaning composition] The present invention provides a method for enhancing the foaming properties of a hard article detergent composition by adding the component (b) to a hard article detergent composition containing the component (a) and water. By adding component (b) to a hard article detergent composition containing component (a) and water, the foaming ability of the hard article detergent composition can be enhanced, and the cleaning durability when cleaning hard articles with the foamed foam can be improved. The method for enhancing the foaming property of the detergent composition for hard articles of the present invention can be suitably applied to the embodiments described in the detergent composition for hard articles and the method for cleaning hard articles of the present invention.

[0071] In the method for enhancing the foaming property of the hard article detergent composition of the present invention, the hard article detergent composition containing the component (a) and water can optionally contain the component (c) and optionally the component (d) in addition to the component (b). The hard article detergent composition of the present invention is a hard article detergent composition comprising a hard article detergent composition containing component (a) and water, and further comprising component (b), optionally component (c), and optionally component (d). The embodiments described for the hard article detergent composition of the present invention can be applied as appropriate to this hard article detergent composition. [Example]

[0072] The hard article detergent compositions shown in Tables 1 and 2 were prepared using the ingredients listed below. The hard article detergent compositions shown in Tables 1 and 2 were prepared by adding components (a), (b), (c), and (d) in the amounts shown in the tables and dissolving them at room temperature (20°C). After blending, the pH was adjusted to the value shown in the tables using citric acid. The pH was measured using a glass electrode method. The mass percentages of the ingredients in Tables 1 and 2 are all values ​​based on the active ingredients.

[0073] <Composition ingredients> (a) Ingredients Amit 102: polyoxyethylene (2.1) laurylamine, component (a1), in general formula (a1), R 1a is an alkyl group with 12 carbon atoms, m+n is 2.1, manufactured by Kao Corporation Amit 105: Polyoxyethylene (4) cocoalkylamine, component (a1), in general formula (a1), R 1a is an alkyl group having 8 to 18 carbon atoms, and m+n is 4, manufactured by Kao Corporation Amit 302: polyoxyethylene (2.1) alkyl (C14-18) amine, component (a1), in general formula (a1), R 1a is an alkyl group having 14 to 18 carbon atoms, and m+n is a compound of 2.1, manufactured by Kao Corporation Amine EO adduct: polyoxyethylene (7) laurylamine, component (a1), in general formula (a1), R 1a is an alkyl group with 12 carbon atoms, and m+n is 7 Amit 308: Polyoxyethylene (9.1) cocoalkylamine, component (a1') (comparison component of component (a1)), in general formula (a1), R 1a is an alkyl group having 14 to 18 carbon atoms, and m+n is 9.1, manufactured by Kao Corporation Amit 320: Polyoxyethylene (20) cocoalkylamine, component (a1') (comparison component of component (a1)), in general formula (a1), R 1a is an alkyl group having 14 to 18 carbon atoms, and m+n is 19.6, manufactured by Kao Corporation Amphitol 20N: lauryldimethylamine oxide, component (a2), in general formula (a2), R 2a is an alkyl group having 12 carbon atoms, R 3a and R 4a Compound with methyl group, q=0, and p=0, manufactured by Kao Corporation Amphitol 40N: Myristyldimethylamine oxide, component (a2), in general formula (a2), R 2a is an alkyl group having 14 carbon atoms, R 3a and R 4a Compound with methyl group, q=0, and p=0, manufactured by Kao Corporation Amphitol 08N: Capryldimethylamine oxide, component (a2), in general formula (a2), R 2a is an alkyl group having 8 carbon atoms, R 3a and R 4a Compound with methyl group, q=0, and p=0, manufactured by Kao Corporation AG-124: alkyl polyglycoside, component (a3), in general formula (a3), R 5a is an alkyl group having 10 to 14 carbon atoms, G is a residue derived from glucose, x is 0, and y is 1.3. GE-EH: 2-ethylhexyl glyceryl ether, component (a4), manufactured by Kao Corporation

[0074] (b) Component Sanizol B-50: benzyl-alkyl(C12-16)dimethylammonium chloride, in the general formula (b2), R 5b is an alkyl group having 12 to 16 carbon atoms (60% by mass of C12, 30% by mass of C14, and 10% by mass of C16), R 6b and R 7b is a methyl group, X - is a chloride ion, manufactured by Kao Corporation Levenol RK: benzyl-alkyl(C8-18)dimethylammonium chloride, where R 5b is an alkyl group having 8 to 18 carbon atoms (80% by mass of C10), R 6b and R 7b is a methyl group, X - is a chloride ion, manufactured by Kao Corporation Sanizol 08: benzyl-octyldimethylammonium chloride, in the general formula (b2), R 5b is an alkyl group having 8 carbon atoms, R 6b and R 7b is a methyl group, X - is a chloride ion, manufactured by Kao Corporation QUARTAMINE 60W: Cetyltrimethylammonium chloride, in the general formula (b1), R 1b is an alkyl group having 16 carbon atoms, R 2b , R 3b and R 4b is a methyl group, X - is a chloride ion, manufactured by Kao Corporation

[0075] (c) Component Neopelex G-25: Sodium alkylbenzenesulfonate (soft type), alkyl group carbon number 10-14, manufactured by Kao Corporation (d) Ingredients BDG: Diethylene glycol monobutyl ether, manufactured by Chunichi Synthetic Chemical PPG-1000: Polypropylene glycol, molecular weight 1000, manufactured by AGC Co., Ltd.

[0076] <Lasting cleaning power when foaming> 1 g of oily soil (beef tallow / rapeseed oil = 1 / 1, mass ratio) was applied to a ceramic dish (diameter 23 cm). After application of the oily soil, the ceramic dish was left at 25°C for 2 hours to prepare a soiled dish for evaluation. Multiple soiled dishes for evaluation were prepared. A sponge (manufactured by Kikuron Co., Ltd.) was impregnated with 1 g of the hard article cleaning composition and 30 g of tap water (30°C), rubbed several times to create a foam, and then used to clean a soiled dish for evaluation. After cleaning, the sponge was deemed complete when it no longer felt sticky when touched with a finger. After cleaning was complete, the sponge was not replaced (nor was it impregnated with new composition), but was again foamed and used to clean a new soiled dish for evaluation, and cleaning was repeated until cleaning could no longer be completed. The persistence of cleaning foam was evaluated based on the number of soiled dishes for evaluation that could be completely cleaned with foam. The results are shown in Tables 1 and 2.

[0077] <Appearance evaluation> 40 mL of each prepared detergent composition was filled into a 50 mL sample bottle (No. 6 wide-mouth glass bottle, cylindrical, 40 mm in diameter, 80 mm in height, with evaluation confirmation characters printed on the periphery of the bottle), the bottle was capped, and then left to stand in a thermostatic chamber at 25°C for 1 hour. After standing, the appearance of the composition was visually observed and rated according to the following criteria. The results are shown in Tables 1 and 2. Transparent: No turbidity and the text can be clearly seen through the sample bottle Slightly cloudy: Slightly cloudy, but the text can be seen through the sample bottle Cloudy: Cloudy and the text cannot be seen through the sample bottle.

[0078] [Table 1]

[0079] [Table 2]

Claims

1. 1. A hard article detergent composition comprising: (a) a nonionic surfactant [hereinafter referred to as component (a)] containing a polyoxyalkylene alkyl or alkenylamine [hereinafter referred to as component (a1)] having an alkyl or alkenyl group having from 8 to 18 carbon atoms and an average number of moles of oxyalkylene groups added of from 1 to 8 [hereinafter referred to as component (a)]; (b) a quaternary ammonium salt surfactant [hereinafter referred to as component (b)]; and water; and (c) a content of an anionic surfactant and an amphoteric surfactant [hereinafter referred to as component (c)] is from 0 to 20% by mass of the total amount of surfactants.

2. 2. The hard article cleaning composition according to claim 1, comprising, as component (a), one or more surfactants selected from (a2) an amine oxide surfactant, (a3) ​​an alkyl glycoside surfactant, and (a4) an alkyl glyceryl ether surfactant.

3. 3. The hard article cleaning composition according to claim 1, wherein the content of component (a1) in component (a) is 10% by mass or more and 100% by mass or less.

4. The hard article cleaning composition according to any one of claims 1 to 3, wherein the content of component (b) is 1% by mass or more and 50% by mass or less of the total amount of surfactants.

5. The hard article cleaning composition according to any one of claims 1 to 4, wherein the mass ratio (a1) / (b) of the content of the component (a1) to the content of the component (b) is 0.1 or more and 100 or less.

6. The hard article cleaning composition according to any one of claims 1 to 5, further comprising a water-miscible organic solvent as component (d) in an amount of 0% by mass to 7% by mass.

7. The cleaning composition for hard articles according to any one of claims 1 to 6, wherein the total amount of surfactants is 1% by mass or more and 30% by mass or less.

8. A method for cleaning hard articles, comprising foaming the detergent composition for hard articles according to any one of claims 1 to 7 and contacting the foamed detergent composition with soiled hard articles.

9. The method for cleaning hard articles according to claim 8, wherein the cleaning composition for hard articles is foamed with a sponge or a sprayer equipped with a foam-forming mechanism and then brought into contact with the hard article.

10. A method for enhancing the foaming properties of a hard article detergent composition, comprising: (a) a nonionic surfactant containing a polyoxyalkylene alkyl or alkenylamine having alkyl or alkenyl groups having from 8 to 18 carbon atoms and having an average number of moles of oxyalkylene groups added of from 1 to 5, and water; and (b) adding a quaternary ammonium salt surfactant to the hard article detergent composition.

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