JP7602329B2 - Cleaning composition for hard surfaces - Google Patents

Description

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

Since residential cleaners are used in a variety of places and situations in the living environment, the dirt they can remove varies widely, from easy-to-remove dirt such as dust and food spills to extremely difficult dirt such as denatured oil stains. For this reason, the optimal cleaner is proposed for each place and situation of use. For example, strong alkaline cleaners are generally used for kitchen cleaners that can remove denatured oil stains, while cleaners with lower surfactant concentrations are used for less soiling such as on tables and windows, which do not leave unpleasant streaks or slimy feeling when wiped.

Patent Document 1 discloses a liquid cleaning agent composition for hard surfaces that contains a specific alkanolamide compound and a surfactant such as a sugar-based surfactant under specific conditions.
Patent Document 2 discloses a cleaning method in which an aqueous composition containing 0.01 to 2 mass % of a surfactant such as an alkylglycoside-type nonionic surfactant, 4 to 15 mass % of ethanol, and water is made into a foam and applied to an object to be cleaned.
Patent Document 3 discloses a cleaning composition for hard surfaces which contains (A) a monoalkyl glyceryl ether having an alkyl group with 3 to 8 carbon atoms, (B) a specific compound represented by general formula (1), (C) amines, (D) a polyvalent carboxylic acid and/or a salt thereof having a molecular weight of 40 to 400, (E) a surfactant (excluding (A) and (B)), and water, in which the (A)/(B) mass ratio, the (A)+(B) content, the (C)/(D) mass ratio, and the (C)+(D) content are each within a specific range, and the pH at 20° C. is 9.5 to 11.5.
Patent Document 4 discloses a neutral detergent composition for hard surfaces, which contains (A) a hydrocarbon having 6 to 16 carbon atoms, (B) a cationic surfactant, (C) at least one surfactant selected from nonionic surfactants and amphoteric surfactants, and water.
Patent Document 5 discloses a cleaning composition for hard surfaces, which contains (A) an alkyl or alkenyl succinic acid or a salt thereof having an alkyl or alkenyl group with 12 carbon atoms and an alkyl or alkenyl succinic acid or a salt thereof having an alkyl or alkenyl group with 14 carbon atoms, (B) a water-soluble organic solvent, (C) an amine compound, and water, and in which the mass ratio of surfactants other than component (A)/(A) is less than 1.

JP 2002-294281 A JP 2004-107655 A JP 2008-45108 A JP 2010-37515 A JP 2008-44993 A

The cleaning power of detergents using surfactants generally tends to be good when they are alkaline, but since objects to be cleaned in the living environment include not only hard surfaces such as glass and tiles, but also metals such as wood and iron, detergents that do not damage these are required, and neutral detergents are preferable in consideration of irritation to the body, etc. Therefore, detergents that are neutral and have excellent cleaning power are useful in this industry, and in particular, detergents with liquid pH close to neutral that have excellent cleaning power against oily stains attached to hard surfaces are desired.
Generally, the cleaning power of a detergent that uses a surfactant tends to improve with an increased amount of surfactant. However, if there is too much surfactant, when wiping the surface after application to a hard surface, more of the surfactant will remain behind as wiping streaks, or the remaining surfactant may affect the feel of the surface, such as making the surface slimy, resulting in a poor finish.

The present invention provides a cleaning agent composition for hard surfaces that has excellent cleaning power against oily stains and produces excellent finishes, such as fewer wiping streaks after cleaning.

The present invention relates to a cleaning composition for hard surfaces, comprising (a) a surfactant (hereinafter referred to as component (a)) and water,
The component (a) contains (a1) a sugar-based surfactant (hereinafter referred to as the component (a1)), (a2) an alkyl glyceryl ether having an alkyl group having from 4 to 12 carbon atoms (hereinafter referred to as the component (a2)), and (a3) a surfactant other than the components (a1) and (a2) (hereinafter referred to as the component (a3)),
the mass ratio of the total content of the (a1) component and the (a2) component to the content of the (a3) component, [(a1)+(a2)]/(a3), is 0.25 or more and 2 or less;
The pH at 25°C is 5 or more and 9 or less.
The present invention relates to a cleaning composition for hard surfaces.

The present invention also relates to a method for cleaning hard surfaces, in which the hard surface is wiped and cleaned using the cleaning composition for hard surfaces of the present invention.

The present invention provides a cleaning agent composition for hard surfaces that has excellent cleaning power against oily stains and produces excellent finishes such as fewer wiping streaks after cleaning, and a method for cleaning hard surfaces.

The hard surface cleaning composition of the present invention has excellent cleaning power against oily stains and has good finish after cleaning, such as fewer wiping streaks after cleaning a hard surface. The reason why such effects are exhibited is not necessarily clear, but it is considered as follows.
In cleaning a hard surface using a surfactant, it has been found that when the surface is wiped after cleaning, the fine particles remaining on the hard surface diffusely reflect visible light and are recognized as wiping streaks. It has also been found that these fine particles are generated by the precipitation of detergent components such as surfactants, the precipitation of hardness components contained in dilution water, and the adhesion of sand, dust, and the like. The sugar-based surfactant (a1) used in the hard surface cleaner composition of the present invention moderately suppresses the crystal growth of the (a2) and (a3) components to form fine particles. Therefore, even if the surfactant precipitates on the hard surface, the proportion of the surfactant present as fine particles increases, thereby reducing the diffuse reflection of visible light. On the other hand, the (a3) component is a main cleaning component for cleaning oil stains attached to a hard surface, but the (a2) component has the effect of further enhancing the oil stain cleaning power of the (a3) component. This not only increases the oil stain cleaning power, but also contributes to the effect of suppressing the formation of wiping streaks due to remaining dirt. In this way, in the present invention, it is presumed that the component (a2) enhances the oil-stain cleaning power of the main cleaning component (a3), and that the combined use of the components (a1) and (a2) can significantly improve the finish after cleaning.

<Cleaning composition for hard surfaces>
The cleaning agent composition for hard surfaces of the present invention contains a surfactant as component (a), and contains, as component (a), a sugar-based surfactant as component (a1), an alkyl glyceryl ether having an alkyl group having from 4 to 12 carbon atoms as component (a2), and a surfactant other than components (a1) and (a2) as component (a3).

Examples of sugar-based surfactants in component (a1) include sorbitan-based nonionic surfactants, sucrose fatty acid ester-type nonionic surfactants, and glycoside-type nonionic surfactants.

The sorbitan-based nonionic surfactant may be one or more nonionic surfactants selected from the nonionic surfactants represented by the following general formula (a1-1) and the nonionic surfactants represented by the following general formula (a1-2):

[In the formula, R ¹¹ represents an alkylene group having 2 to 4 carbon atoms, R ¹² each independently represents an alkyl group or alkenyl group having 1 to 14 carbon atoms, the alkyl group and alkenyl group may be linear, branched, or cyclic, a, b, and c represent the average number of moles added, and the sum of a, b, and c is a number of 3 to 50.]

In the above general formulae (a1-1) and (a1-2), R ¹¹ is an alkylene group having 2 to 4 carbon atoms, preferably an ethylene group or a propylene group, and more preferably an ethylene group.
In the above general formulae (a1-1) and (a1-2), R ¹² preferably has a carbon number of 5 or more, more preferably 7 or more and 13 or less. R ¹² is preferably an alkyl group, more preferably a linear alkyl group.
In the above general formulae (a1-1) and (a1-2), a, b and c are each independently preferably 0 or more and preferably 50 or less, more preferably 30 or less, from the viewpoint of detergency and finish. The sum of a, b and c is 3 or more, preferably 4 or more, and 50 or less, preferably 30 or less, from the viewpoint of detergency and finish.

Examples of sucrose fatty acid ester-type nonionic surfactants include sucrose fatty acid esters in which the fatty acid moiety is a fatty acid having 8 to 18 carbon atoms, preferably 10 to 14 carbon atoms. Preferably, the sucrose fatty acid ester is a fatty acid in which the fatty acid moiety has a linear or branched alkyl group and has 8 to 18 carbon atoms, more preferably 10 to 14 carbon atoms.

Examples of the glycoside-type nonionic surfactant include nonionic surfactants represented by the following general formula (a1-3).
R ²¹ (OR ²² ) _x G _y (a1-3)
[In the formula, R ²¹ represents a linear or branched alkyl or alkenyl group having 8 to 18 carbon atoms, R ²² represents an alkylene group having 2 to 4 carbon atoms, G represents a residue derived from a reducing sugar having 5 or 6 carbon atoms, x represents an average number of 0 to 5, and y represents an average number of 1 to 10.]

In the above general formula (a1-3), the alkyl group or alkenyl group, preferably the alkyl group, represented by R ²¹ has 8 or more carbon atoms, preferably 10 or more carbon atoms, and 18 or less, preferably 14 or less carbon atoms, from the viewpoint of improving cleaning power and wiping ability. The alkylene group represented by R ²² has 2 or more carbon atoms and 4 or less carbon atoms, from the viewpoint of solubility. The structure of the residue derived from a reducing sugar having 5 or 6 carbon atoms, represented by G, is determined by the monosaccharide or disaccharide or higher sugar used. Examples of the raw material of the residue represented by G include monosaccharides such as glucose, galactose, xylose, mannose, lyxose, arabinose, fructose, or mixtures thereof, and examples of disaccharides or higher include maltose, xylobiose, isomaltose, cellobiose, gentibiose, lactose, sucrose, nigerose, turanose, raffinose, gentianose, menzitose, or mixtures thereof. Among these, preferred raw materials are glucose and fructose among monosaccharides, and maltose and sucrose among disaccharides or higher, in view of their availability and low cost.

In the above general formula (a1-3), the average value of x is 0 or more and 5 or less, preferably 2 or less, more preferably 1 or less, and even more preferably 0.
The average value of y in the above general formula (a1-3) is 1 or more, preferably 1.1 or more, more preferably 1.2 or more, and 10 or less, preferably 2 or less, more preferably 1.8 or less, and even more preferably 1.6 or less. The value of y (degree of sugar condensation) can be measured by ^1H -NMR.
When the average value of y in general formula (a1-3) is greater than 1, that is, when the glycoside-type nonionic surfactant has two or more sugar chains as hydrophilic groups, the bonding mode of the sugar chains may include 1-2, 1-3, 1-4, 1-6 bonds, or α-, β-pyranoside bonds or furanoside bonds, and any mixture of these mixed bonding modes.

The (a1) component is preferably an alkyl glycoside having an alkyl group with 8 or more carbon atoms, preferably 10 or more carbon atoms, and 18 or less, preferably 14 or less. The hard surface cleaning composition of the present invention preferably contains, as the (a1) component, an alkyl glycoside having an alkyl group with 8 or more carbon atoms and 18 or less carbon atoms.

The component (a2) is an alkyl glyceryl ether having an alkyl group having 4 to 12 carbon atoms.
The alkyl group of the component (a2) preferably has 5 to 10 carbon atoms.
The alkyl group of the component (a2) may be either a straight chain or a branched chain, with branched chain being preferred.
The component (a2) is preferably a monoalkyl glyceryl ether having an alkyl group having 5 or more carbon atoms, preferably 6 or more, more preferably 8 or more and 10 or less carbon atoms.
In the present invention, the component (a2) is preferably a compound selected from 2-ethylhexyl glyceryl ether, isononyl glyceryl, and isodecyl glyceryl ether.

The (a3) component is a surfactant other than the (a1) and (a2) components. The (a3) component surfactant may be one or more surfactants selected from amphoteric surfactants, zwitterionic surfactants, nonionic surfactants, anionic surfactants, and cationic surfactants.

Examples of amphoteric and zwitterionic surfactants include betaines having a linear or branched alkyl or alkenyl group with 1 to 23 carbon atoms, such as sulfobetaine, carbobetaine, and amine oxides having the alkyl or alkenyl group.

As the betaine, from the viewpoint of oil cleaning power, foaming property, etc., an amphoteric surfactant represented by the following general formula (a3-1) is preferred.

[In the formula, R ³¹ is an alkyl or alkenyl group having 8 to 23 carbon atoms, and R ³² is an alkylene group having 1 to 6 carbon atoms. A is a group selected from -COO-, -CONH-, -OCO-, -NHCO-, and -O-, and p is the number 0 or 1. ^{R 33} and R ³⁴ are alkyl or hydroxyalkyl groups having 1 to 3 carbon atoms, and R ³⁵ is an alkylene group having 1 to 5 carbon atoms which may be substituted with a hydroxy group. B is a group selected from -SO ₃ ^- , -OSO ₃ ^- , and -COO-. ^]

In general formula (a3-1), the number of carbon atoms in R ³¹ is preferably 11 or 12. A is preferably -COO- or -CONH-, more preferably -CONH-. The number of carbon atoms in R ³² is preferably 2 or 3, and R ³³ and R ³⁴ are preferably methyl groups.

Preferred betaines include alkyl (carbon number 8 or more, preferably 10 or more and 18 or less, preferably 14 or less)-N,N-dimethyl acetate betaine, fatty acid (fatty acid carbon number 9 or more, preferably 11 or more and 19 or less, preferably 15 or less) amidopropyl-N,N-dimethyl acetate betaine, alkyl (carbon number 8 or more, preferably 10 or more and 18 or less, preferably 14 or less)-N,N-dimethylethane sulfobetaine, alkyl (carbon number 8 or more, preferably 10 or more and 18 or less, preferably 14 or less)-N,N-dimethyl-2-hydroxypropyl sulfobetaine, fatty acid (fatty acid carbon number 9 or more, preferably 11 or more and 19 or less, preferably 15 or less) amidopropyl-N,N-dimethyl-2-hydroxypropyl sulfobetaine, alkyl (carbon number 8 or more, preferably 10 or more and 18 or less, preferably 14 or less) carboxymethyl hydroxyethyl imidazolium betaine, etc.

Examples of amine oxides include amine oxides having one alkyl or alkenyl group with 8 or more carbon atoms, preferably 10 or more, and 23 or less, preferably 18 or less, more preferably 14 or less. Specific examples include surfactants represented by the following general formula (a3-2).

[In the formula, R ³¹ is an alkyl group or alkenyl group having 8 or more, preferably 10 or more, and 23 or less, preferably 18 or less, and more preferably 14 or less carbon atoms; R ³² is an alkylene group having 1 or more, preferably 2 or more, and 6 or less, preferably 3 or less carbon atoms; A is a group selected from -COO-, -CONH-, -OCO-, and -NHCO-; p is the number 0 or 1; ^{R 33} and R ³⁴ are alkyl groups or hydroxyalkyl groups having 1 to 3 carbon atoms.]

Specific examples of amine oxides include N-decyl-N,N-dimethylamine oxide, N-lauryl-N,N-dimethylamine oxide, N-myristyl-N,N-dimethylamine oxide, N-caproylaminopropyl-N,N-dimethylamine oxide, N-lauroylaminopropyl-N,N-dimethylamine oxide, and N-myristylaminopropyl-N,N-dimethylamine oxide. Decyl dimethylamine oxide, N-lauryl-N,N-dimethylamine oxide (lauryl dimethylamine oxide), N-myristyl-N,N-dimethylamine oxide, capric acid amidopropyl dimethylamine oxide, and lauric acid amidopropyl dimethylamine oxide are preferred, and N-lauryl-N,N-dimethylamine oxide and N-myristyl-N,N-dimethylamine oxide are more preferred from the viewpoint of cleaning power for oily stains.

Nonionic surfactants include, but are not limited to, polyoxyethylene (addition mole number of ethylene oxide is 4 or more, preferably 6 or more, and 30 or less, preferably 15 or less), alkyl (carbon number of 8 or more, preferably 10 or more, and 18 or less, preferably 14 or less), fatty acid alkanolamide (fatty acid carbon number of 9 or more, preferably 11 or more, and 19 or less, preferably 15 or less), polyoxyethylene alkylamine (addition mole number of ethylene oxide is 1 or more, and 5 or less, preferably 3 or less), fatty acid glycerin ester (fatty acid carbon number of 9 or more, preferably 11 or more, and 19 or less, preferably 15 or less), etc. The alkanol of the fatty acid alkanolamide is preferably ethanol or diethanol. The fatty acid glycerin ester is a monoester, diester, or triester, and a monoester is preferred.

Anionic surfactants include, but are not limited to, anionic surfactants having a polyoxyalkylene group. For example, polyoxyalkylene alkyl ether sulfate, polyoxyalkylene alkenyl ether sulfate, polyoxyalkylene alkyl aryl ether sulfate, polyoxyalkylene alkenyl aryl ether sulfate, polyoxyalkylene monoalkyl ether phosphate, polyoxyalkylene dialkyl ether phosphate, polyoxyalkylene monoalkenyl ether phosphate, polyoxyalkylene dialkenyl ether phosphate, polyoxyalkylene monophenyl ether phosphate, polyoxyalkylene diphenyl ether phosphate, polyoxyalkylene alkyl ether carboxylate, polyoxyalkylene alkenyl ether carboxylate, polyoxyalkylene alkyl ether acetate, polyoxyalkylene alkenyl ether acetate, etc. The number of carbon atoms of these alkyl or alkenyl groups is 8 or more, preferably 10 or more, and 18 or less, preferably 14 or less. In addition, polyoxyethylene is preferable as the polyoxyalkylene. The average number of moles of oxyalkylene groups, such as oxyethylene groups, added is 0.1 or more, preferably 0.5 or more, and 5 or less, preferably 3 or less. Examples of salts include alkali metal salts, ammonium salts, and alkanolamine salts.

Examples of cationic surfactants include alkyl (e.g., carbon number 6 or more, preferably 8 or more, and 16 or less, preferably 14 or less) trimethylammonium salts, dialkyl (e.g., carbon number 6 or more, preferably 8 or more, and 16 or less, preferably 14 or less) dimethylammonium salts, triethanolamine difatty acid ester quaternary salts, fatty acid monoester monoamide salts of N-hydroxyethyl-N-methyl-propanediamine, alkylbenzyldimethylammonium salts, alkylpyridinium salts, polyethylene polyamines, etc.

The cationic surfactant may have bactericidal properties.
The cationic surfactant may be represented by the following general formula (a3-3).

[Wherein,
R ⁴¹ is an alkyl group having 6 to 16 carbon atoms;
R ⁴² is a group selected from the group consisting of a methyl group, an ethyl group, and an alkyl group having 6 to 16 carbon atoms;
R ⁴³ is a methyl group or an ethyl group;
R ⁴⁴ is a group selected from the group consisting of a methyl group, an ethyl group, and a benzyl group;
L ⁻ is a counter ion.

In general formula (a3-3), R ⁴¹ represents an alkyl group having 6 or more, preferably 8 or more, and 16 or less, preferably 14 or less, carbon atoms.
In addition, in general formula (a3-3), R ⁴² is a group selected from the group consisting of a methyl group, an ethyl group, and an alkyl group having 6 to 16 carbon atoms. A methyl group, an ethyl group, or an alkyl group having 8 to 14 carbon atoms is preferable, a methyl group or an ethyl group is more preferable, and a methyl group is even more preferable.
In addition, in general formula (a3-3), R ⁴³ represents a methyl group or an ethyl group, and a methyl group is preferable.
In addition, in general formula (a3-3), R ⁴⁴ is a group selected from the group consisting of a methyl group, an ethyl group, and a benzyl group, preferably a methyl group or a benzyl group, and more preferably a benzyl group.
In general formula (a3-3), ^L- is a counter ion and may be an anionic group selected from the group consisting of a halide ion such as a chloride ion or a bromide ion, an alkyl sulfate ion having from 1 to 5 carbon atoms, an alkyl-substituted benzenesulfonate ion having an alkyl group having from 1 to 3 carbon atoms as a substituent, and an alkyl phosphate ion having from 6 to 18 carbon atoms. ^L- is preferably an anionic group selected from the group consisting of a chloride ion, a bromide ion, and an alkyl sulfate ion having from 1 to 5 carbon atoms.

The component (a3) is preferably one or more surfactants selected from amphoteric surfactants and zwitterionic surfactants. The cleaning composition for hard surfaces of the present invention preferably contains, as the component (a3), one or more surfactants selected from amphoteric surfactants and zwitterionic surfactants.

In the hard surface cleaning composition of the present invention, from the viewpoint of achieving both cleaning power against oily stains and finish quality, the mass ratio of the total content of the content of the (a1) component and the content of the (a2) component to the content of the (a3) component, [(a1) + (a2)] / (a3), is 0.25 or more and 2 or less. The mass ratio of [(a1) + (a2)] / (a3) is preferably 0.35 or more, more preferably 0.45 or more, and preferably 1.7 or less, more preferably 1.5 or less, even more preferably 1 or less, and even more preferably 0.8 or less.

From the viewpoint of cleaning power against oily stains, the hard surface cleaning composition of the present invention preferably has a mass ratio (a1)/(a2) of the content of the component (a1) to the content of the component (a2) of more preferably more than 0.1 and not more than 10. The mass ratio (a1)/(a2) is more preferably 0.2 or more, even more preferably 0.3 or more, still more preferably 0.5 or more, still more preferably 1 or more, and preferably 8 or less, more preferably 5 or less, still more preferably 2 or less, and still more preferably less than 2.

In the cleaning composition for hard surfaces of the present invention, from the viewpoint of suppressing precipitation of the surfactant component, the mass ratio (a3)/(a1) of the content of the component (a1) to the content of the component (a3) is preferably more than 1 and not more than 10. The mass ratio (a3)/(a1) is preferably 2 or more, more preferably 4 or more, and preferably 8 or less, more preferably 6 or less.

In terms of achieving both cleaning power against oily stains and finish quality, the hard surface cleaning composition of the present invention has a mass ratio of the content of the (a2) component to the sum of the content of the (a1) component and the content of the (a3) component, [(a1) + (a3)] / (a2), which is preferably more than 1 and not more than 11. The mass ratio of [(a1) + (a3)] / (a2) is more preferably 3 or more, even more preferably 4 or more, more preferably 10 or less, even more preferably 9 or less, and even more preferably 7 or less.

The cleaning composition for hard surfaces of the present invention contains component (a) in an amount of preferably 0.01% by mass or more, more preferably 0.05% by mass or more, and preferably 2% by mass or less, more preferably 1% by mass or less, in order to suppress precipitation of the surfactant component.

The cleaning composition for hard surfaces of the present invention contains water. The water content is, for example, 80% by mass or more, further 99% by mass or more, and 99.7% by mass or less, further 97% by mass or less. The cleaning composition for hard surfaces of the present invention is a liquid.

The hard surface cleaning composition of the present invention preferably contains (b) a water-soluble solvent [hereinafter referred to as component (b)]. With respect to component (b), "water-soluble" means that 5 g or more of the component dissolves in 100 g of water at 20°C.

Examples of the water-soluble solvent for component (b) include water-soluble solvents selected from ethanol, isopropyl alcohol, 2-methyl-2-propanol, ethylene glycol monoethyl ether, ethylene glycol monopropyl ether, ethylene glycol monobutyl ether, diethylene glycol monoethyl ether, diethylene glycol monopropyl ether, diethylene glycol monobutyl ether, diethylene glycol monohexyl ether, propylene glycol monoethyl ether, propylene glycol monopropyl ether, propylene glycol monobutyl ether, propylene glycol monohexyl ether, dipropylene glycol monoethyl ether, dipropylene glycol monopropyl ether, dipropylene glycol monobutyl ether, triethylene glycol monobutyl ether, 3-methyl-3-methoxybutanol, phenoxyethanol, phenyl glycol, phenyl diglycol, phenoxyisopropanol, dibutylene glycol, and benzyl alcohol. From the viewpoint of improving cleaning properties, water-soluble solvents selected from ethanol, methylpropylene glycol, dipropylene glycol monobutyl ether, and butylpropanol are more preferable for component (b).

When the cleaning composition for hard surfaces of the present invention contains component (b), the content of component (b) in the composition is, for example, 1% by mass or more, further 2% by mass or more, and 10% by mass or less, further 8% by mass or less.

The hard surface cleaning composition of the present invention may contain other optional components such as antioxidants, preservatives, thickeners, rust inhibitors, pH adjusters, colorants, fragrances, and bactericides. The amount of the optional components is adjusted in consideration of the finish after wiping.

In the present invention, the amount of the sequestering agent in the composition may be 10% by mass or less, further 5% by mass or less, further 3% by mass or less, or even 0% by mass, based on the (a) component. That is, the hard surface cleaning agent composition of the present invention may not contain a sequestering agent. The sequestering agent whose content is limited in this way may be a sequestering agent selected from polycarboxylic acids such as citric acid, malic acid, tartaric acid, succinic acid, methylglycine diacetate, glutamic acid diacetate, hydroxyethyliminodiacetate, ethylenediaminedisuccinic acid, nitrilotriacetic acid, 1,3-propanediaminetriacetate, 1,3-diamino-2-hydroxypropanetetraacetic acid, glycoletherdiaminetetraacetate, ethylenediaminetetraacetate, diethylenetriaminepentaacetate, triethylenetetraaminehexaacetate, dihydroxyethylglycine, and hydroxyethylethylenediaminetriacetate, dicarboxymethylglutamic acid, and tripolyphosphoric acid.

As the fragrance, a single fragrance component may be used, or a fragrance composition containing multiple fragrance components in a specific ratio may be used. As the fragrance component, those described in "Chemistry of Fragrances" (by Akaboshi Ryoichi, published by the Chemical Society of Japan, Industrial Chemistry Series, September 16, 1983), "Synthetic Fragrances Chemistry and Product Knowledge" (by Indo Genichi, published by Chemical Daily, March 6, 1996), and "Fundamentals of Fragrances and Fragrance Blending" (by Nakajima Mototaka, published by Sangyo Tosho Co., Ltd., June 21, 1995) may be used. Specifically, one or more types selected from hydrocarbon-based fragrances, alcohol-based fragrances, ether-based fragrances, aldehyde-based fragrances, ketone-based fragrances, ester-based fragrances, lactone-based fragrances, cyclic ketone-based fragrances, and nitrogen-containing fragrances may be mentioned, preferably one or more types selected from hydrocarbon-based fragrances, alcohol-based fragrances, and aldehyde-based fragrances.

The hard surface cleaning composition of the present invention has a pH at 25°C of 5 or more, preferably 6 or more, and 9 or less, preferably 8 or less. Such a pH is preferable in consideration of the effect on the object to be cleaned, and the hard surface cleaning composition of the present invention can achieve both excellent cleaning power and finish quality within this pH range.

The hard surface cleaning composition of the present invention has a viscosity at 25°C of preferably 1 mPa·s or more, more preferably 2 mPa·s or more, and preferably 1000 or less, more preferably 300 mPa·s or less. This viscosity is measured using an Ubbelohde viscometer (manufactured by Shibata Scientific Machinery Co., Ltd.).

The cleaning composition for hard surfaces of the present invention can be applied to hard surfaces in ordinary households such as kitchens, bathrooms, and toilets, as well as hard surfaces in various industrial facilities such as food processing plants. In particular, it can be suitably applied to hard surfaces such as those in kitchens, living rooms, cooking utensils, and food processing plants that are prone to becoming soiled with oil. A cleaning composition for wiping and cleaning hard surfaces is one of the preferred aspects of the present invention.

The hard surface cleaning composition of the present invention is preferably used by spraying or applying it to a hard surface having oily stains or the like. A spray means can be used for spraying or applying it. The present invention provides a hard surface cleaning product in a spray container, which is obtained by filling the hard surface cleaning composition of the present invention into a container equipped with a sprayer.

In the spray-contained hard surface cleaner article of the present invention, the container equipped with a sprayer into which the hard surface cleaner composition of the present invention is filled may be a manual spray device that does not use a propellant, such as a trigger-type spray container or a pump-type spray container, or an aerosol that uses a propellant. The container equipped with the sprayer is preferably a trigger-type spray that can spray or apply the contents in droplets or foam form, and more preferably a trigger-type spray equipped with a mechanism for spraying the contents in droplets or a mechanism for forming foam (foam-forming mechanism).

In the case where a trigger-type spray having a mechanism for spraying the hard surface cleaner composition of the present invention in the form of droplets is used in the spray-container-packed hard surface cleaner article of the present invention, the nozzle diameter of the spray container containing the composition is preferably 0.1 mm or more, more preferably 0.3 mm or more, and preferably 2 mm or less, more preferably 1 mm or less, in order to facilitate spraying, to ensure that the sprayed droplets are not rough, that they are not sprayed in a straight line, and that the area that can be sprayed is not extremely narrow.
When using a trigger-type spray equipped with a mechanism for spraying in the form of droplets, the spray-container hard surface cleaning article of the present invention sprays preferably 0.1 mL or more, more preferably 0.3 mL or more, and preferably 5 mL or less, more preferably 2 mL or less of the composition in one operation.

When using a trigger-type spray equipped with a foam-forming mechanism in the spray-contained hard surface cleaner article of the present invention, it is preferable to use one having a spin element and a liquid passage plate with several rod-shaped protrusions installed in a circular space with a diameter of 4 to 8 mm. Here, the spin element is a mechanism that gives a spin to the flow of liquid through the spin element and finally sprays it from the nozzle, and for detailed structure, reference can be made to JP-A-8-332422, FIG. 4(b) of JP-A-8-108102, FIG. 1 of JP-A-2002-68265, etc.

When using a trigger-type sprayer equipped with a foam-forming mechanism, the spray-contained hard surface cleaning article of the present invention sprays, in one operation, 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.

The liquid passage plate, another component of the foam-forming mechanism, has preferably 3 to 8 rod-shaped protrusions installed in a circular space with a diameter of 5 to 7 mm, and when the plate is viewed in plan, the rod-shaped protrusions are preferably rectangular with a width of 0.8 to 1.2 mm and a length of 2 to 4 mm. Furthermore, the area occupied by the rod-shaped protrusions in relation to the space excluding the rod-shaped protrusions is preferably 30 area% or more, more preferably 40 area% or more, and preferably 90 area% or less, more preferably 80 area% or less, and even more preferably 70 area% or less. By installing such a liquid passage plate, the adhesion and retention of foam on the vertical surface is improved.

The container of the spray-contained hard surface cleaner article of the present invention can be a commonly used container. For example, it can be obtained from polyethylene, polypropylene, or polyethylene terephthalate as a raw material, and can be manufactured by blow molding or the like. The thickness of the container may differ between the bottom and sides, and is preferably 0.01 to 2 mm, and the container capacity is preferably 100 to 1000 mL. The amount of liquid hard surface cleaner composition filled into the container is preferably 200 to 500 mL for ease of handling. Furthermore, the liquid is filled while leaving a reasonable space.

How to clean hard surfaces
The present invention provides a method for cleaning a hard surface, which comprises wiping and cleaning the hard surface with the above-mentioned cleaning composition for hard surfaces of the present invention.
As described above, it has been found that when a hard surface is cleaned using a surfactant, the fine particles remaining on the hard surface diffusely reflect visible light and are recognized as wiping streaks when the surface is wiped after cleaning. It is believed that the use of the (a1), (a2) and (a3) components in combination under predetermined conditions as the (a) component as in the present invention promotes the formation of fine particles when the surfactant is particulated during wiping after cleaning, resulting in improved finish. Therefore, the present invention can also provide a method for cleaning a hard surface, which promotes the formation of fine particles of the (a) component on the hard surface after wiping when the hard surface is wiped and cleaned with a hard surface cleaning agent composition containing the (a) surfactant (hereinafter referred to as the (a) component) and water, thereby reducing wiping streaks on the hard surface.

The hard surface cleaning composition and the hard surface cleaning article in a spray container of the present invention are suitable as a wet wiping composition or wet wiping article. That is, they are suitable for light cleaning of hard surfaces (various objects, floors, walls, ceilings, etc.) in living areas such as living rooms, rooms, kitchens, bathrooms, and toilets. In this case, the composition of the present invention does not foam, become slimy, or leave marks, has excellent finish, and dries quickly, so there is no need to wipe with water (twice). The present invention provides a method for cleaning hard surfaces in which the hard surface cleaning composition of the present invention is applied to the hard surface and then wiped to clean it. For wiping, it is preferable to remove the composition applied to the hard surface from the hard surface using a cloth, dustcloth, nonwoven fabric, etc.

The hard surface cleaning composition of the present invention can also be used as a cleaning article by impregnating a substrate. A cleaning article in which a substrate is impregnated with the hard surface cleaning composition of the present invention is preferred from the viewpoint of ease of cleaning work.

The matters described for the cleaning composition for hard surfaces of the present invention can be appropriately applied to the method for cleaning hard surfaces of the present invention.

In the method for cleaning hard surfaces of the present invention, it is preferable to fill a spray container with the cleaning composition for hard surfaces of the present invention, spray the composition in the form of foam, and apply the composition to dirt on the hard surface. In the method for cleaning hard surfaces of the present invention, the above-mentioned spray container-packed cleaning agent article for hard surfaces of the present invention can be used.
In the method for cleaning a hard surface of the present invention, it is preferable to apply the cleaning composition for hard surfaces of the present invention to a hard surface and then leave it to stand for a predetermined time, for example, 10 seconds or more, further 0.5 minutes or more, further 1 minute or more, and 5 minutes or less, further 3 minutes or less, further 2 minutes or less.
In the method for cleaning a hard surface of the present invention, wiping and cleaning of the hard surface can be performed using a suitable wiping material, such as a sheet, a brush, a mop, etc. The wiping material may contain fibers such as natural fibers and synthetic fibers.
In the method for cleaning a hard surface of the present invention, the hard surface after wiping and cleaning may be rinsed with water or the like.

An example of the method for cleaning hard surfaces of the present invention is a method for cleaning hard surfaces in which a predetermined amount, for example, about 6 mL per 1 ^m2 of the detergent composition for hard surfaces of the present invention is sprayed or applied to hard surfaces around the home, i.e., kitchens, dining tables, wooden floors, furniture, exteriors of home appliances, bathrooms, toilets, mirrors, glass, washstands, stoves, car interiors, etc., and then the composition is wiped off using a support, for example, a support that is dry or impregnated with a formulation liquid, water, etc. For wiping, it is preferable to remove the composition applied to the hard surface from the hard surface using a cloth, dustcloth, nonwoven fabric, kitchen paper, tissue paper, etc. In this case, since the composition of the present invention has excellent finish and dries quickly, there is no need to wipe with water (twice).

<Examples 1 to 13 and Comparative Examples 1 to 5>
The cleaning compositions for hard surfaces shown in Table 1 were prepared and the following evaluations were carried out. The results are shown in Table 1.

[Evaluation of cleaning power]
Rapeseed oil (FUJIFILM Wako Pure Chemical Industries, Ltd.) denatured by heating at 180°C for 6 hours was sprayed onto a stainless steel top plate (JIS G4305, SUS304, 8 cm x 12 cm x 1.0 mm, manufactured by Engineering Test Service Co., Ltd.). The amount of adhesion was set ^to 0.1 mg/cm2, assuming the amount of dirt in an actual field. The stainless steel surface was sprayed once (10 mg/ ^cm2 ) with the detergent composition for hard surfaces, and then wiped with a sheet of kitchen paper (Elleair Super Absorbent Kitchen Towel, manufactured by Daio Paper Co., Ltd.), and the oil stain cleaning rate was calculated from the difference in mass of the stainless steel top plate before and after wiping. The cleaning rate was calculated from cleaning rate = (1 - [(A2) - (A0)] / [(A1) - (A0)]) x 100. In the formula, A0 is the mass (g) of the stainless steel top plate before the dirt adheres, A1 is the mass (g) of the stainless steel top plate with the dirt adhered thereto, and A2 is the mass (g) of the stainless steel top plate after the stainless steel top plate is wiped and cleaned. Each mass was measured using an AB204-S analytical balance manufactured by Mettler Toledo.
The cleaning power was evaluated from the obtained cleaning rate according to the following criteria.
5 points: cleaning rate is more than 97% and less than 100% 4 points: cleaning rate is more than 95% and less than 97% 3 points: cleaning rate is more than 90% and less than 95% 2 points: cleaning rate is more than 80% and less than 90% 1 point: cleaning rate is less than 80%

[Evaluation of finish]
In the evaluation of the cleaning power, after wiping with kitchen paper, the finish of the stainless steel surface was visually observed by four panelists (researchers in the relevant field in their 20s and 30s) and judged according to the following criteria. The average scores of the four panelists are shown in Table 1.
5 points: Almost no streaks left 4 points: Slight streaks left but not noticeable 3 points: Slight streaks left but not noticeable 2 points: Streaks left but noticeable 1 point: Significant streaks left

The ingredients in the table are as follows:
Lauryl glycoside: Mydol 12, manufactured by Kao Corporation; 2-ethylhexyl glyceryl ether: Penetol GE-EH, manufactured by Kao Corporation; Lauryl dimethylamine oxide: Amphitol 20N, manufactured by Kao Corporation; Lauryl aminopropyl dimethylamine oxide: Softazoline LAO, manufactured by Kawaken Fine Chemicals Co., Ltd.; Lauryl-2-hydroxypropyl sulfobetaine: Amphitol 20HD, manufactured by Kao Corporation; Lauryl amidopropyl betaine: Amphitol 20AB, manufactured by Kao Corporation; Lauryl beta In: Amphitol 20BS, manufactured by Kao Corporation; POE alkyl ether: Emulgen 108, manufactured by Kao Corporation; Lauric acid diethanolamide: Aminone L-02, manufactured by Kao Corporation; Polyoxyethylene alkylamine: Amit 320, manufactured by Kao Corporation; POE (2.0) alkyl sulfate Na: Emal 227, manufactured by Kao Corporation; Benzalkonium chloride: Sanizol B-50, manufactured by Kao Corporation; Sorbitan fatty acid monolaurate: Emazol L-10V, manufactured by Kao Corporation; Sucrose fatty acid ester: Sunsoft No. 750-C, manufactured by Taiyo Kagaku Co., Ltd.

<Composition Examples 1 to 10>
Table 2 shows examples of formulations of cleaning compositions for hard surfaces according to the present invention.

In the table, the sorbitan fatty acid monolaurate and sucrose fatty acid ester are as follows: The other components in the table (some of them) are the same as those used in Example 1.
Sorbitan fatty acid monolaurate: Emazol L-10V, manufactured by Kao Corporation Sucrose fatty acid ester: Sunsoft No. 750-C, manufactured by Taiyo Kagaku Co., Ltd.

Claims (5)

A hard surface cleaning composition comprising: (a) a surfactant (hereinafter referred to as component (a)) in an amount of 0.05% by mass or more and 2% by mass or less; and water,
The composition contains, as the component (a), (a1) an alkyl glycoside having an alkyl group having from 8 to 18 carbon atoms (hereinafter referred to as the component (a1)), (a2) an alkyl glyceryl ether having an alkyl group having from 4 to 12 carbon atoms (hereinafter referred to as the component (a2)), and (a3) one or more surfactants selected from amphoteric surfactants and zwitterionic surfactants ( hereinafter referred to as the component (a3));
the mass ratio of the total content of the (a1) component and the (a2) component to the content of the (a3) component, [(a1)+(a2)]/(a3), is 0.25 or more and 2 or less;
The pH at 25°C is 5 or more and 9 or less.
A cleaning composition for hard surfaces. The cleaning composition for hard surfaces according to claim 1, wherein the mass ratio (a1)/(a2) of the content of the component (a1) to the content of the component (a2) is greater than 0.1 and less than or equal to 10. 3. The cleaning composition for hard surfaces according to claim 1, wherein the mass ratio (a3)/(a1) of the content of the component (a1) to the content of the component (a3) is greater than 1 and less than or equal to 10 . The cleaning composition for hard surfaces according to any one of claims 1 to 3 , which is used for wiping and cleaning hard surfaces. A method for cleaning a hard surface, comprising wiping and cleaning the hard surface with the cleaning composition for hard surfaces according to any one of claims 1 to 4 .