Cleaning agent composition

Abstract

The invention provides a cleaning agent composition which has excellent cleaning property, rinsability and finishing property for fiber products and further imparts antibacterial property to the fiber products. A detergent composition according to the present invention contains prescribed amounts of the following component (A), the following component (B), (C) a water-insoluble inorganic component, (D) a cationic surfactant, and (E) an anionic polymer, the mass ratio of the content of the component (B) to the total content of the component (B) and the component (C) being greater than 0 but not greater than 0.50. Component (B): a water-soluble inorganic salt which contains component (b1): a water-soluble inorganic salt having a pH value of 9.0 or more in a 0.1 g / L aqueous solution, and component (b2): a water-soluble inorganic salt having a pH value of less than 9.0 in a 0.1 g / L aqueous solution, in a predetermined ratio.

Description

Technical Field

[0001] The present invention relates to cleaning compositions. Background Art

[0002] In recent years, from the viewpoint of reducing environmental load or sustainable social system (ie, ecology and sustainability), there is a demand for reducing the amount of detergent composition used, particularly the amount of surfactant.

[0003] On the other hand, the recent increase in nighttime washing and indoor drying has led to a corresponding increase in the problem of laundry odor caused by bacteria. Furthermore, due to the impact of the coronavirus in recent years, hygiene awareness has further increased, and the ability to inhibit bacteria has become a necessary and basic function of detergents.

[0004] Japanese Patent Publication No. 7-286195 discloses a method for producing a particulate nonionic detergent composition, wherein (a) a nonionic surfactant, (b) a porous inorganic powder containing 50% by weight or more of SiO2, and (c) soap are uniformly kneaded and mixed in predetermined amounts to form a solid detergent. Subsequently, the inorganic powder is added as a pulverization aid, and the solid detergent is pulverized to produce a powdery or granular detergent.

[0005] Japanese Patent Laid-Open No. 10-158697 discloses a high-bulk-density particulate nonionic detergent composition comprising (a) a nonionic surfactant, (b) a clay mineral, (c) an oil-absorbing carrier, (d) a predetermined high-molecular-weight chelate builder, and (e) a positively charged nitrogen-containing compound, wherein the positively charged nitrogen-containing compound (e) has a positively charged nitrogen atom in its molecule, at least a portion of which is dissolved in the nonionic surfactant (a) and adsorbed on the clay mineral (b).

[0006] Japanese Patent Application Laid-Open No. 2004-10681 discloses a particulate detergent composition comprising (a) a specified amine compound, (b) a sulfonate, (c) a specified nonionic compound, and (d) a water-soluble inorganic salt, wherein the content of the surfactant corresponding to JIS K3362:1998 is 10 to 60% by mass. Summary of the Invention

[0007] From the perspective of ecology and sustainability, detergent compositions are required to achieve higher cleaning performance with a lower base dosage. In addition, from the perspective of environmental concerns, fewer rinse cycles are desired.

[0008] The present invention provides a detergent composition having excellent cleaning, rinsing and finishing properties for fiber products and further imparting antibacterial properties to the fiber products.

[0009] The "finishing property" in the present invention refers to reducing undissolved residues of the cleaning composition and reducing traces left on the cleaned object.

[0010] The present invention relates to a cleaning composition comprising 5% by mass or more and 40% by mass of the following component (A), 20% by mass or more and 80% by mass or less of the following component (B), 5% by mass or more and 40% by mass or less of the following component (C), 0.1% by mass or more and 5.0% by mass or less of the following component (D), and 0.1% by mass or more and 10% by mass or less of the following component (E).

[0011] The mass ratio (a2) / [(a1)+(a2)] of the content of the component (a2) to the total content of the components (a1) and (a2) is 0 or more and 0.5 or less.

[0012] The mass ratio (b2) / [(b1)+(b2)] of the content of the component (b2) to the total content of the components (b1) and (b2) is 0.2 or more and 0.8 or less.

[0013] The mass ratio (C) / [(B)+(C)] of the content of the component (C) to the total content of the components (B) and (C) exceeds 0 and is 0.50 or less.

[0014] (A) component: one or more selected from the following (a1) component and the following (a2) component,

[0015] (a1) ingredient: nonionic surfactant,

[0016] (a2) ingredient: anionic surfactant,

[0017] (B) component: at least one selected from the following (b1) component and the following (b2) component,

[0018] (b1) Component: a water-soluble inorganic salt having a pH of 9.0 or higher in a 0.1 g / L aqueous solution at 20°C.

[0019] (b2) Ingredient: a water-soluble inorganic salt, the pH value of which in a 0.1 g / L aqueous solution at 20° C. is less than 9.0,

[0020] (C) ingredient: water-insoluble inorganic component,

[0021] (D) ingredient: cationic surfactant,

[0022] Component (E): anionic polymer.

[0023] According to the present invention, there can be provided a detergent composition having excellent cleaning, rinsing, and finishing properties for fiber products, and further imparting antimicrobial properties to the fiber products. DETAILED DESCRIPTION

[0024] The detergent composition of the present invention has excellent cleaning, rinsing, and finishing properties for textile products. The mechanism by which the detergent composition imparts antimicrobial properties to textile products is not yet clear, but is presumed to be as follows.

[0025] The cleaning composition of the present invention is presumed to improve the cleaning performance of sebum stains by using the nonionic surfactant (a1), the anionic surfactant (a2), and the alkaline agent (b1) in combination.

[0026] Furthermore, it is presumed that the cleaning composition of the present invention improves its ability to clean mud stains by using the component (a2) and the anionic polymer of the component (E) in combination.

[0027] Furthermore, it is speculated that the cleaning composition of the present invention, by including a predetermined component (A) and further adjusting the ratio of the water-soluble inorganic salt of the component (B) to the water-insoluble inorganic salt of the component (C) within a predetermined range, can achieve both rinsing properties and finishing properties. Furthermore, "finishing properties" in the present invention refer to reducing undissolved residues of the cleaning composition and reducing residual marks on the cleaned object.

[0028] Furthermore, it is speculated that the detergent composition of the present invention, by combining components (A) to (E), can achieve excellent cleaning, rinsing, and finishing properties for textile products without impairing the antibacterial performance of component (D).

[0029] In addition, the cleaning composition of the present invention is not limited to the above-mentioned mechanism of action.

[0030] [Cleaning agent composition]

[0031] The cleaning composition of the present invention contains the following components (A), (B), (C), (D), and (E) in predetermined amounts.

[0032] (A) component: one or more selected from the following (a1) component and the following (a2) component,

[0033] (a1) ingredient: nonionic surfactant,

[0034] (a2) ingredient: anionic surfactant,

[0035] (B) component: at least one selected from the following (b1) component and the following (b2) component,

[0036] (b1) Component: a water-soluble inorganic salt having a pH of 9.0 or higher in a 0.1 g / L aqueous solution at 20°C.

[0037] (b2) Ingredient: a water-soluble inorganic salt, the pH value of which in a 0.1 g / L aqueous solution at 20° C. is less than 9.0,

[0038] (C) ingredient: water-insoluble inorganic component,

[0039] (D) ingredient: cationic surfactant,

[0040] Component (E): anionic polymer.

[0041] <(A)Component>

[0042] Component (A) is one or more surfactants selected from (a1) nonionic surfactants and (a2) anionic surfactants. The surfactants in component (A) may include: one or more surfactants selected from component (a1); and optionally, one or more surfactants selected from component (a2).

[0043] <(a1)Component>

[0044] Component (a1) is a nonionic surfactant. From the perspective of cleaning performance, component (a1) may be one or more selected from polyoxyalkylene alkyl ethers or polyoxyalkylene alkenyl ethers, alkyl (poly)glycosides (glycoside-type nonionic surfactants), sorbitan-based nonionic surfactants, compounds in which alkylene oxides are added between the ester bonds of long-chain fatty acid alkyl esters, fatty acid monoglycerides, and sucrose fatty acid esters.

[0045] The nonionic surfactant of the component (a1) is preferably a nonionic surfactant (a1-1) containing an alkyleneoxy group and having an average added mole number of the alkyleneoxy group of 1 to 30 (hereinafter referred to as the component (a1-1)).

[0046] The alkyleneoxy group of the component (a1-1) is preferably one or more groups selected from alkyleneoxy groups having 2 or more and 4 or less carbon atoms, and more preferably one or more groups selected from ethyleneoxy groups and propyleneoxy groups.

[0047] From the viewpoint of cleansing properties against sebum stains, the average number of added moles of the alkyleneoxy group of the component (a1-1) is 1 or more, preferably 6 or more, more preferably 8 or more, and is 30 or less, preferably 25 or less, more preferably 20 or less, and even more preferably 15 or less.

[0048] The component (a1-1) is preferably a nonionic surfactant represented by the following general formula (a1-1),

[0049] R 1a (CO) m O-(A 1a O) n -R 2a (a1-1)

[0050] Where R 1a is an aliphatic hydrocarbon group having 8 to 18 carbon atoms, R 2a is a hydrogen atom or a methyl group; CO is a carbonyl group, m is 0 or 1; A 1a The O group is one or more selected from alkyleneoxy groups having 2 or more and 4 or less carbon atoms; n is A 1a The average added molar number of O groups is 1 or more and 30 or less.

[0051] In the general formula (a1-1), from the viewpoint of cleansing property against sebum, R 1a The number of carbon atoms is 8 or more, preferably 10 or more, more preferably 12 or more, and is 18 or less, preferably 16 or less, more preferably 14 or less.

[0052] R 1a It is an aliphatic hydrocarbon group, preferably a group selected from an alkyl group and an alkenyl group.

[0053] In the general formula (a1-1), A 1a The O group is one or more selected from alkyleneoxy groups having 2 or more and 4 or less carbon atoms, preferably one or more selected from alkyleneoxy groups having 2 or more and 3 or less carbon atoms, more preferably ethyleneoxy groups. 1a When the O group includes a plurality of different alkyleneoxy groups, the different alkyleneoxy groups may be bonded in a block type or randomly bonded.

[0054] In the general formula (a1-1), n ​​is A 1a The average number of added moles of O groups is 1 or more and 30 or less. In the general formula (a1-1), from the viewpoint of cleansing properties against sebum stains, n is 1 or more, preferably 6 or more, more preferably 8 or more, and is 30 or less, preferably 25 or less, more preferably 20 or less, and even more preferably 15 or less.

[0055] In general formula (a1-1), m is preferably 0 from the viewpoint of cleanability.

[0056] In the general formula (a1-1), from the viewpoint of cleansing properties, R 2a Preferred is a hydrogen atom.

[0057] Specific examples of the nonionic surfactant having no alkyleneoxy group other than the component (a1-1) include one or more selected from sucrose fatty acid esters, glycerol fatty acid esters, sorbitan fatty acid esters, alkyl glycosides, and glycerol monoethers.

[0058] (a2) Ingredients

[0059] Component (a2) is an anionic surfactant. From the perspective of cleaning performance for particulate stains, component (a2) is preferably one or more selected from alkylarylsulfonic acid surfactants, sulfate surfactants, alkanesulfonic acid surfactants, olefinsulfonic acid surfactants, alkyl sulfosuccinate surfactants, sulfofatty acid ester surfactants, and fatty acids and their salts. More preferably, it is one or more selected from alkylarylsulfonic acid surfactants, sulfate surfactants, alkyl sulfosuccinate surfactants, and fatty acids and their salts. Even more preferably, it is one or more selected from alkylarylsulfonic acid surfactants, and fatty acids and their salts.

[0060] When component (a2) is a salt, examples of the salt of component (a2) include inorganic salts such as sodium salts, potassium salts, ammonium salts, and magnesium salts, and organic salts such as monoethanolamine salts, diethanolamine salts, triethanolamine salts, and morpholine salts. The salt of component (a2) is preferably an inorganic salt selected from alkali metal salts such as sodium salts and potassium salts and alkaline earth metal salts such as magnesium salts, more preferably an alkali metal salt, and even more preferably a sodium salt.

[0061] Component (a2) includes one or more compounds selected from the group consisting of compounds represented by the following general formula (a2-1) [hereinafter referred to as component (a2-1)], compounds represented by the following general formula (a2-2) [hereinafter referred to as component (a2-2)], compounds represented by the following general formula (a2-3) [hereinafter referred to as component (a2-3)], and compounds represented by the following general formula (a2-4) [hereinafter referred to as component (a2-4)]. From the perspective of cleaning performance for particulate stains, component (a2) is preferably one or more selected from component (a2-1), component (a2-2), and component (a2-3), and more preferably one or more selected from component (a2-1) and component (a2-2).

[0062] R 3a -B-SO3M (a2-1)

[0063] [In formula (a2-1), R 3a represents an alkyl group having 9 or more and 14 or less carbon atoms, B represents a benzene ring, and R bonded to a carbon atom of B 3a The carbon atom is a secondary carbon atom, M represents a cation; relative to R bonded to B 3a , the sulfonic acid group is bonded to the ortho, meta or para position.]

[0064] R 4a -COOM (a2-2)

[0065] [In formula (a2-2), R 4a represents an alkyl or alkenyl group having 10 or more and 18 or less carbon atoms, and M represents a cation.]

[0066] R 5a -O-(AO) n -SO3M (a2-3)

[0067] [In formula (a2-3), R 5a is an aliphatic hydrocarbon group having 10 to 18 carbon atoms, the AO group is one or more alkyleneoxy groups selected from ethyleneoxy and propyleneoxy, n is a number of 0 to 20, and M is a cation.]

[0068] R 6a -CH(SO3M)COOR 7a (a2-4)

[0069] [In formula (a2-4), R 6a represents an alkyl group having 8 to 18 carbon atoms, R 7a represents a hydrogen atom or an alkyl group having 1 to 5 carbon atoms, and M represents a cation.]

[0070] In the general formula (a2-1), R 3a The alkyl group has 9 or more, preferably 10 or more, and preferably 14 or less, more preferably 13 or less carbon atoms.

[0071] In the general formula (a2-1), M is preferably a hydrogen ion, an alkali metal ion (such as sodium ion, potassium ion, etc.), an alkaline earth metal (1 / 2 atom) ion (such as magnesium ion, calcium ion, etc.), or an organic ammonium ion. The organic ammonium salt can be a salt formed from an amine such as monoethanolamine, diethanolamine, or triethanolamine. M is preferably an alkali metal ion (such as sodium ion, potassium ion, etc.) or an alkanolammonium ion (such as monoethanolammonium ion, diethanolammonium ion, etc.), more preferably a sodium ion.

[0072] As the component (a2-1), a p-alkylbenzenesulfonate in which the number of carbon atoms of the alkyl group is 10 or more and 14 or less is preferred, and a sodium salt of p-alkylbenzenesulfonate in which the number of carbon atoms of the alkyl group is 10 or more and 14 or less is more preferred. That is, the component (a2-1) is preferably: in the general formula (a2-1), R 3a A compound in which the group is an alkyl group having 10 or more and 14 or less carbon atoms, and M is a sodium ion.

[0073] In the general formula (a2-2), R 4ais an alkyl group or an alkenyl group, and the number of carbon atoms thereof is 10 or more, preferably 11 or more, and 18 or less, preferably 16 or less, more preferably 14 or less, and further preferably 13 or less. 4a Examples include one or more groups selected from the group consisting of a linear alkyl group, a branched alkyl group, a linear alkenyl group, and a branched alkenyl group, and a linear alkyl group is preferred.

[0074] In the general formula (a2-2), M is preferably a hydrogen ion, an alkali metal ion (such as sodium ion, potassium ion, etc.), an alkaline earth metal (1 / 2 atom) ion (such as magnesium ion, calcium ion, etc.), or an organic ammonium ion. The organic ammonium salt can be a salt formed from an amine such as monoethanolamine, diethanolamine, or triethanolamine. M is preferably an alkali metal ion (such as sodium ion, potassium ion, etc.) or an alkanolammonium ion (such as monoethanolammonium ion, diethanolammonium ion, etc.), more preferably a sodium ion.

[0075] Component (a2-2) is preferably one or more selected from lauric acid, myristic acid, isostearic acid, palmitic acid, isopalmitic acid, oleic acid and salts thereof, more preferably one or more selected from lauric acid, myristic acid, palmitic acid and salts thereof, and still more preferably one or more selected from lauric acid, myristic acid and salts thereof.

[0076] As the component (a2-2), preferably: in the general formula (a2-2), R 4a The compound is an alkyl group having 10 or more and 16 or less carbon atoms, and M is a cation, more preferably a compound in which M is a hydrogen ion or a sodium ion.

[0077] In the general formula (a2-3), R 5a is an aliphatic hydrocarbon group, and the number of carbon atoms is preferably 10 or more, more preferably 11 or more, and even more preferably 12 or more, and is preferably 18 or less, more preferably 16 or less, and even more preferably 14 or less. 5a It is a linear or branched aliphatic hydrocarbon group, preferably a linear aliphatic hydrocarbon group, more preferably a linear alkyl group.

[0078] In general formula (a2-3), the AO group is one or more alkyleneoxy groups selected from ethyleneoxy and propyleneoxy. When the AO group includes ethyleneoxy and propyleneoxy, the ethyleneoxy and propyleneoxy groups may be block-bonded or randomly bonded. From the perspective of improving cleanability, the AO group is preferably a group including an ethyleneoxy group.

[0079] In the general formula (a2-3), n is the average number of added moles of AO groups and is 0 or more and 20 or less. From the viewpoint of improving cleaning properties, n is 0 or more, and from the viewpoint of improving cleaning properties, n is 20 or less, preferably 16 or less, more preferably 12 or less, even more preferably 8 or less, and even more preferably 4 or less.

[0080] In general formula (a2-3), when AO contains a propyleneoxy group, the average number of added moles of the propyleneoxy group is preferably 4 or less, more preferably 3 or less, and preferably 0 or more. In general formula (a2-3), the average number of added moles of the propyleneoxy group may be 0.

[0081] In the general formula (a2-3), when AO contains an ethyleneoxy group, the average number of added moles of the ethyleneoxy group is preferably 0 or more and preferably 10 or less, more preferably 5 or less, and further preferably 4 or less.

[0082] In the general formula (a2-3), M is preferably a hydrogen ion, an alkali metal ion (such as sodium ion, potassium ion, etc.), an alkaline earth metal (1 / 2 atom) ion (such as magnesium ion, calcium ion, etc.), or an organic ammonium ion. The organic ammonium salt can be a salt formed from an amine such as monoethanolamine, diethanolamine, or triethanolamine. M is preferably an alkali metal ion (such as sodium ion, potassium ion, etc.) or an alkanolammonium ion (such as monoethanolammonium ion, diethanolammonium ion, etc.), more preferably a sodium ion.

[0083] In the general formula (a2-4), R 6a The alkyl group has preferably 8 or more carbon atoms, more preferably 10 or more carbon atoms, and even more preferably 12 or more carbon atoms, and preferably 18 or less carbon atoms, and more preferably 16 or less carbon atoms.

[0084] In the general formula (a2-4), R 7a The alkyl group preferably has 1 or more carbon atoms, and preferably 5 or less carbon atoms, more preferably 4 or less carbon atoms, and further preferably 3 or less carbon atoms.

[0085] In the general formula (a2-4), M is preferably a hydrogen ion, an alkali metal ion (such as sodium ion, potassium ion, etc.), an alkaline earth metal (1 / 2 atom) ion (such as magnesium ion, calcium ion, etc.), or an organic ammonium ion. The organic ammonium salt can be a salt formed from an amine such as monoethanolamine, diethanolamine, or triethanolamine. M is preferably an alkali metal ion (such as sodium ion, potassium ion, etc.), or an alkanolammonium ion (such as monoethanolammonium ion, diethanolammonium ion, etc.), more preferably a sodium ion.

[0086] As the component (a2-4), the following α-sulfo fatty acid methyl ester sodium salt is preferred: That is, in the general formula (a2-4), R 6a is an alkyl group having 11 or more and 14 or less carbon atoms, R 7ais a methyl group and M is a sodium ion.

[0087] <(B) Ingredient>

[0088] The component (B) is one or more water-soluble inorganic salts selected from the group consisting of the component (b1) and the component (b2).

[0089] The water-soluble inorganic salt of the component (B) may include one or more water-soluble inorganic salts selected from the component (b1) and one or more water-soluble inorganic salts selected from the component (b2).

[0090] In the present invention, the water-soluble inorganic salt in the component (B) refers to an inorganic salt that dissolves 1 g or more in 100 g of water at 20°C.

[0091] The component (b1) is a water-soluble inorganic salt, and a 0.1 g / L aqueous solution of the water-soluble inorganic salt has a pH of 9.0 or higher at 20°C.

[0092] The component (b2) is a water-soluble inorganic salt, and a 0.1 g / L aqueous solution of the water-soluble inorganic salt has a pH value of less than 9.0 at 20°C.

[0093] In the cleaning composition of the present invention, by using components (b1) and (b2) in an appropriate ratio, even if the cleaning composition contains component (C), which is a water-insoluble inorganic component described below, it is possible to suppress undissolved residues in water and a decrease in cleaning performance of the cleaning composition.

[0094] <pH Measurement Method>

[0095] Specifically, the pH of a 0.1 g / L aqueous solution of the component (b1) and the component (b2) at 20° C. was measured by the following pH measurement method.

[0096] Connect a pH meter (e.g., pH / ion meter F-23, manufactured by HORIBA, Ltd.) to a pH electrode with a saturated potassium chloride aqueous solution (3.33 mol / L) as the internal solution. Next, add a pH 4.01 standard solution (phthalate standard solution), a pH 6.86 standard solution (neutral phosphate standard solution), and a pH 9.18 standard solution (borate standard solution) to a 100 mL beaker and immerse the solution in a 20°C thermostat for 30 minutes. Immerse the pH electrode in the constant temperature standard solution for 3 minutes and perform calibration in the order of pH 6.86 → pH 9.18 → pH 4.01. A 0.1 g / L aqueous solution of the component (b1) or the component (b2) to be measured was adjusted to 20° C., the electrode of the pH meter was immersed in the sample, and the pH value was measured after 1 minute.

[0097] (b1) Ingredients

[0098] Component (b1) is a water-soluble inorganic salt having a pH of 9.0 or higher in a 0.1 g / L aqueous solution at 20°C. Component (b1) may be an alkaline agent. Component (b1) includes one or more alkaline agents selected from alkali metal carbonates, alkali metal silicates, tripolyphosphates, alkali metal sulfites, alkali metal hydroxides, alkali metal perborates, and alkali metal percarbonates.

[0099] Examples of the alkali metal carbonate include one or more selected from sodium carbonate, potassium carbonate, and sodium sesquicarbonate, and sodium carbonate is preferred.

[0100] Examples of the alkali metal silicate include one or more selected from the group consisting of sodium silicate, potassium silicate, sodium metasilicate, and potassium metasilicate.

[0101] Examples of the tripolyphosphate include alkali metal tripolyphosphate salts.

[0102] As the alkali metal sulfite, sodium sulfite can be mentioned.

[0103] Examples of the alkali metal hydroxide include one or more selected from sodium hydroxide and potassium hydroxide.

[0104] As the alkali metal perborate, sodium perborate can be mentioned.

[0105] As the alkali metal percarbonate, sodium percarbonate can be mentioned.

[0106] From the viewpoint of cleaning performance, the component (b1) is preferably at least one selected from alkali metal carbonates, more preferably at least one selected from sodium carbonate and potassium carbonate, and even more preferably sodium carbonate.

[0107] (b2) Ingredients

[0108] Component (b2) is a water-soluble inorganic salt having a pH of less than 9.0 at 20°C in a 0.1 g / L aqueous solution. Component (b2) may be one or more compounds selected from the group consisting of inorganic sulfates, inorganic halogen compounds, and alkali metal bicarbonates. Component (b2) preferably comprises one or more water-soluble inorganic salts selected from the group consisting of inorganic sulfates and alkali metal bicarbonates.

[0109] Component (b2) includes one or more compounds selected from the group consisting of sodium sulfate, magnesium sulfate, aluminum sulfate, potassium sulfate, sodium chloride, potassium chloride, calcium chloride, magnesium chloride, sodium bicarbonate, and potassium bicarbonate. Component (b2) may be a hydrate or an anhydrate.

[0110] <(C) Ingredient>

[0111] Component (C) is a water-insoluble inorganic component. Component (C) may be a water-insoluble carrier. Regarding component (C), "water-insoluble" means that 1 g or more will not dissolve in 100 g of water at 20°C.

[0112] Component (C) can be one or more selected from amorphous silica, calcium silicate, clay mineral, crystalline aluminosilicate, and amorphous aluminosilicate, and is preferably one or more selected from clay mineral and crystalline aluminosilicate. Using component (C) and component (B) in a specific ratio can suppress undissolved residues in laundry after cleaning using the detergent composition and reduce turbidity in the rinse water.

[0113] The average primary particle size of component (C) is preferably 0.1 μm or more, more preferably 1 μm or more, and preferably 10 μm or less, more preferably 5 μm or less. The average primary particle size of component (C) is measured using a laser diffraction / scattering particle size distribution analyzer (e.g., HORIBA LA-950). This average primary particle size is the D50 (median diameter) in the volume-based cumulative particle size distribution.

[0114] Specific examples of the component (C) include amorphous aluminosilicates (oil absorption capacity: 285 mL / 100 g) described in Japanese Patent Application Laid-Open Nos. 9-132794, 7-10526, 6-227811, and 8-119622.

[0115] More specifically, as the calcium silicate of component (C), Florite R (manufactured by Tokuyama Co., Ltd., oil absorption capacity: 400-500 mL / 100 g) can be used; as the amorphous silica of component (C), Tokuseal NR (manufactured by Tokuyama Co., Ltd., oil absorption capacity: 210-270 mL / 100 g) or SYLOPURE (manufactured by Fuji Silicium Chemical Co., Ltd., oil absorption capacity: 240-280 mL / 100 g) can be used; and as the amorphous aluminosilicate of component (C), TIXOREX 25 (manufactured by Hanbul Chemical Co., Ltd., oil absorption capacity: 220-270 mL / 100 g) can be used.

[0116] In addition, crystalline aluminosilicates include zeolites. Specific examples of zeolites include crystalline aluminosilicates such as A-type, X-type, and P-type zeolites. The crystalline aluminosilicate is preferably A-type zeolite (e.g., trade name "TOYOBUILDER": manufactured by Tosoh Corporation, oil absorption capacity measured by JIS K 5101 method: 40 mL / 100 g or more). In addition, suitable products include: P-type (e.g., trade names "Doucil A24", "ZSEO64", etc.; all manufactured by Crosfield; oil absorption capacity 60 to 150 mL / 100 g), X-type (e.g., trade name "Wessalith XD"; manufactured by Degussa; oil absorption capacity 80 to 100 mL / 100 g), and the mixed zeolites described in International Publication No. 98 / 42622.

[0117] Examples of the clay mineral of component (C) include bentonite. Bentonite preferably has an ion exchange capacity of 50 to 100 meq / 100 g. Examples of bentonite include one or more selected from the group consisting of smectitic clays (selected from montmorillonite, saponite, or hectorite of alkali metal or alkaline earth metal), illite, attapulgite, and kaolinite. Bentonite may be used in powder or granular form. For example, reference may be made to the granulated form of clay minerals disclosed in Japanese Patent Application Laid-Open No. 2008-189719.

[0118] <(D) Ingredient>

[0119] Component (D) is a cationic surfactant. Component (D) includes quaternary ammonium surfactants. Component (D) may have one or more effects selected from the group consisting of bactericidal, antimicrobial, and sterilizing effects.

[0120] The quaternary ammonium salt surfactant as the component (D) is preferably at least one selected from the group consisting of compounds represented by the following general formula (d1) and compounds represented by the following general formula (d2).

[0121]

[0122] [Where R 1d is an aliphatic hydrocarbon group having 8 to 18 carbon atoms, R 2d is a group selected from an aliphatic hydrocarbon group having 8 to 18 carbon atoms, an alkyl group having 1 to 3 carbon atoms, and a hydroxyalkyl group having 1 to 3 carbon atoms, R 3d and R 4d Each independently represents 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.]

[0123]

[0124] [Where R 5d is an aliphatic hydrocarbon group having 8 to 18 carbon atoms, R 6d and R 7d Each independently represents 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.]

[0125] In the general formula (d1), from the viewpoint of cleaning power, R 1d The number of carbon atoms in R is preferably 9 or more, more preferably 10 or more, further preferably 12 or more, and preferably 16 or less. 1d It is preferably an alkyl group or an alkenyl group, and is preferably an alkyl group.

[0126] In the general formula (d1), R 2d It is a group selected from an aliphatic hydrocarbon group having 8 to 18 carbon atoms, an alkyl group having 1 to 3 carbon atoms, and a hydroxyalkyl group having 1 to 3 carbon atoms.

[0127] In R 2d In the case of an aliphatic hydrocarbon group having 8 to 18 carbon atoms, from the viewpoint of detergency, R 2d It is preferably an alkyl group or alkenyl group having 8 or more carbon atoms and preferably 14 or less, more preferably 12 or less carbon atoms, and an alkyl group is more preferred.

[0128] In the general formula (d1), R 3d and R 4d Each independently represents a group selected from an alkyl group having 1 to 3 carbon atoms and a hydroxyalkyl group having 1 to 3 carbon atoms. 3d and R 4dEach independently represents a group selected from an alkyl group having 1 to 3 carbon atoms. Examples of the alkyl group having 1 to 3 carbon atoms include a methyl group, an ethyl group, and a propyl group. Examples of the hydroxyalkyl group having 1 to 3 carbon atoms include a hydroxymethyl group, a hydroxyethyl group, and a hydroxypropyl group.

[0129] In the general formula (d1), X - Anions include halogen ions and at least one anion selected from alkyl sulfate ions having 1 to 3 carbon atoms. Examples of halogen ions include chloride ions, bromide ions, and iodide ions. Examples of alkyl sulfate ions having 1 to 3 carbon atoms include methyl sulfate ions, ethyl sulfate ions, and propyl sulfate ions.

[0130] In the general formula (d2), R 5d It is an aliphatic hydrocarbon group having 8 or more and 18 or less carbon atoms. 5d The number of carbon atoms in R is preferably 8 or more, more preferably 10 or more, further preferably 12 or more, and is preferably 18 or less, more preferably 16 or less. 5d It is preferably an alkyl group or an alkenyl group, and more preferably an alkyl group.

[0131] In the general formula (d2), R 6d and R 7d Each independently represents a group selected from an alkyl group having 1 to 3 carbon atoms and a hydroxyalkyl group having 1 to 3 carbon atoms. 6d and R 7d Each independently represents a group selected from an alkyl group having 1 to 3 carbon atoms. Examples of the alkyl group having 1 to 3 carbon atoms include a methyl group, an ethyl group, and a propyl group. Examples of the hydroxyalkyl group having 1 to 3 carbon atoms include a hydroxymethyl group, a hydroxyethyl group, and a hydroxypropyl group.

[0132] In the general formula (d2), X - Anions include halogen ions and at least one anion selected from alkyl sulfate ions having 1 to 3 carbon atoms. Examples of halogen ions include chloride ions, bromide ions, and iodide ions. Examples of alkyl sulfate ions having 1 to 3 carbon atoms include methyl sulfate ions, ethyl sulfate ions, and propyl sulfate ions.

[0133] Specific examples of the compound of the general formula (d2) include N-dodecyl-N,N-dimethyl-N-benzylammonium salt, N-tridecyl-N,N-dimethyl-N-benzylammonium salt, N-tetradecyl-N,N-dimethyl-N-benzylammonium salt, N-pentadecyl-N,N-dimethyl-N-benzylammonium salt, N-hexadecyl-N,N-dimethyl-N-benzylammonium salt, N-dodecyl-N,N-diethyl-N-benzylammonium salt, N-tridecyl-N,N-diethyl-N-benzylammonium salt, N-tetradecyl-N,N-dimethyl-N-benzylammonium salt, One or more compounds selected from the group consisting of -diethyl-N-benzylammonium salt, N-pentadecyl-N,N-diethyl-N-benzylammonium salt, 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.

[0134] The component (D) is preferably one or more selected from benzalkonium chloride and alkyltrimethylammonium chloride. Benzalkonium chloride is preferably a compound represented by the general formula (d2). Alkyltrimethylammonium chloride is preferably a compound represented by the general formula (d1).

[0135] <(E) Ingredient>

[0136] (E) Component is an anionic polymer. Examples of (E) component include polymers having a carboxylic acid group or a salt thereof and having a weight average molecular weight of 3,000 or more.

[0137] Examples of the component (E) include one or more polymers selected from polyacrylic acid and salts thereof, copolymers of acrylic acid and maleic acid and salts thereof, and polymaleic acid and salts thereof (hereinafter referred to as component (E1)).

[0138] Examples of polyacrylic acid and salts thereof include one or more selected from polyacrylic acid, sodium polyacrylate, and potassium polyacrylate, and preferably one or more selected from sodium polyacrylate and potassium polyacrylate.

[0139] Examples of the copolymer of acrylic acid and maleic acid and its salt include one or more selected from the group consisting of copolymers of acrylic acid and maleic acid, sodium salts of copolymers of acrylic acid and maleic acid, and potassium salts of copolymers of acrylic acid and maleic acid. Preferred examples include one or more selected from the group consisting of sodium salts of copolymers of acrylic acid and maleic acid, and potassium salts of copolymers of acrylic acid and maleic acid. The molar ratio of acrylic acid to maleic acid in the copolymer, calculated as the number of moles of acrylic acid to the number of moles of maleic acid, is preferably 1 / 99 or greater, more preferably 10 / 90 or greater, and preferably 99 / 1 or less, more preferably 90 / 10 or less.

[0140] Examples of polymaleic acid and salts thereof include one or more selected from polymaleic acid, sodium polymaleate, and potassium polymaleate, and preferably one or more selected from sodium polymaleate and potassium polymaleate.

[0141] (E1) component can also be a copolymer comprising a monomer other than acrylic acid and maleic acid that can be copolymerized with acrylic acid and / or maleic acid, as long as it is the degree that does not hinder the effect performance of the present invention. As a monomer other than acrylic acid and maleic acid that can be copolymerized with acrylic acid and / or maleic acid, more than one selected from vinyl monomers, acrylic acid monomers and styrene monomers etc. can be enumerated, more specifically, more than one selected from methacrylic acid, methyl acrylate, ethyl acrylate, methyl methacrylate and styrene etc. can be enumerated. In (E1) component, the mol ratio of the monomer other than acrylic acid and maleic acid that can be copolymerized with acrylic acid and / or maleic acid in (E1) component is preferably 0 mol% or more, and, preferably 5 mol% or less, more preferably 3 mol% or less, further preferably 0 mol%. Therefore, the polyacrylic acid and its salt of the present invention, the copolymer of acrylic acid and maleic acid and its salt, and polymaleic acid and its salt can be, in the range of 0 mol% or more and 5 mol% or less in total constituent monomers, comprising a polymer or copolymer of a monomer other than acrylic acid and maleic acid that can be copolymerized with acrylic acid and / or maleic acid.

[0142] The weight average molecular weight of the component (E) is preferably 3,000 or more, more preferably 3,500 or more, even more preferably 4,000 or more, even more preferably 5,000 or more, even more preferably 6,000 or more, even more preferably 7,000 or more, even more preferably 8,000 or more, even more preferably 9,000 or more, even more preferably 10,000 or more, and is preferably 100,000 or less, more preferably 50,000 or less, even more preferably 25,000 or less, and even more preferably 15,000 or less.

[0143] The weight average molecular weight can be measured by the following method for measuring the weight average molecular weight.

[0144] <Method for measuring weight average molecular weight>

[0145] The weight average molecular weight of the component (E) can be measured by GPC (gel permeation chromatography) and the weight average molecular weight (Mw) can be determined by converting the weight average molecular weight to a standard substance.

[0146] The measurement conditions of GPC are shown below.

[0147] Column: Made by Tosoh Corporation, trade name: TSK-GEL guard PWXL

[0148] Manufactured by Tosoh Corporation, trade name: TSK-GEL G4000 PWXL

[0149] Manufactured by Tosoh Corporation, trade name: TSK-GEL G2500 PWXL

[0150] Mobile phase: 0.1 mol / L potassium dihydrogen phosphate and 0.1 mol / L sodium dihydrogen phosphate in water / acetonitrile = 90 / 10 (volume ratio)

[0151] Detector: Differential refractive index detector

[0152] Column temperature: 40°C

[0153] Flow rate: 1.0 mL / min

[0154] Conversion standard substance: Polyacrylic acid [manufactured by American Standard Corp.]

[0155] Sample: Ion-exchanged water was added to an aqueous polymer solution containing 0.8 g of solid content to prepare a total liquid volume of 200 mL. 10 μL of the prepared liquid was aliquoted and injected into a column.

[0156] <Composition, etc.>

[0157] In the detergent composition of the present invention, from the perspective of cleaning power, the content of component (A) in the detergent composition is 5% by mass or more, preferably 7% by mass or more, more preferably 9% by mass or more, and even more preferably 11% by mass or more. From the perspective of rinsability, the content of component (A) is 40% by mass or less, preferably 30% by mass or less, more preferably 25% by mass or less, and even more preferably 20% by mass or less. In addition, in the present invention, when component (a2) is included as component (A), the mass of component (a2) is the value converted to sodium salt.

[0158] In the detergent composition of the present invention, from the viewpoint of cleaning performance, the mass ratio (a2) / [(a1)+(a2)] of the content of component (a2) to the total content of component (a1) and component (a2) is 0 or more, preferably 0.05 or more, more preferably 0.10 or more, and even more preferably 0.15 or more. From the viewpoint of rinsing performance and antibacterial performance, it is 0.5 or less, preferably 0.45 or less, more preferably 0.40 or less, and even more preferably 0.35 or less.

[0159] In the cleaning composition of the present invention, from the viewpoint of cleaning performance, the content of component (B) in the above-mentioned cleaning composition is 20 mass% or more, preferably 25 mass% or more, more preferably 30 mass% or more, and even more preferably 40 mass% or more. From the viewpoint of suppressing undissolved residues, the content of component (B) is 80 mass% or less, preferably 70 mass% or less, more preferably 65 mass% or less, even more preferably 60 mass% or less, and even more preferably 55 mass% or less.

[0160] In the cleaning composition of the present invention, from the viewpoint of suppressing undissolved residues and antibacterial performance, the mass ratio (b2) / [(b1)+(b2)] of the content of component (b2) to the total content of component (b1) and component (b2) is 0.2 or more, preferably 0.30 or more, more preferably 0.35 or more, and even more preferably 0.40 or more. From the viewpoint of cleaning performance and antibacterial performance, it is 0.8 or less, preferably 0.7 or less, more preferably 0.65 or less, even more preferably 0.60 or less, even more preferably 0.55 or less, and even more preferably 0.50 or less.

[0161] In the cleaning composition of the present invention, from the viewpoint of suppressing undissolved residues, the content of component (C) in the cleaning composition is 5% by mass or more, preferably 10% by mass or more, more preferably 15% by mass or more, even more preferably 20% by mass or more, and even more preferably 25% by mass or more. From the viewpoint of suppressing trace residues, the content of component (C) is 40% by mass or less, preferably 35% by mass or less, more preferably 32.5% by mass or less, and even more preferably 30% by mass or less.

[0162] In the cleaning composition of the present invention, from the viewpoint of suppressing undissolved residues, the mass ratio (C) / [(B)+(C)] of the content of component (C) to the total content of components (B) and (C) is greater than 0, preferably 0.05 or greater, more preferably 0.1 or greater, even more preferably 0.15 or greater, even more preferably 0.20 or greater, even more preferably 0.25 or greater, and even more preferably 0.30 or greater. From the viewpoint of suppressing trace residues, the mass ratio is 0.50 or less, preferably 0.45 or less, more preferably 0.40 or less, and even more preferably 0.38 or less.

[0163] In the cleaning composition of the present invention, from the viewpoint of antibacterial performance, the content of component (D) in the cleaning composition is 0.1% by mass or more, preferably 0.5% by mass or more, more preferably 0.7% by mass or more, further preferably 1.0% by mass or more, and further more preferably 2.0% by mass or more. The upper limit is not particularly limited, and for example, it may be 5.0% by mass or less, further 4.0% by mass or less, further 3.5% by mass or less, or further 3.0% by mass or less.

[0164] In the detergent composition of the present invention, from the viewpoint of cleaning performance for particulate stains, the content of component (E) in the detergent composition is 0.1% by mass or more, preferably 1.0% by mass or more, more preferably 2.0% by mass or more, further preferably 3.0% by mass or more, further more preferably 4.0% by mass or more, and is 10% by mass or less, preferably 8.0% by mass or less, more preferably 6.0% by mass or less, further preferably 5.0% by mass or less.

[0165] In the cleaning composition of the present invention, from the perspective of cleaning performance, the ratio of the content of component (A) to the total content of the surfactants contained in the cleaning composition, i.e., ((A) / (total content of surfactants)), is preferably 50% by mass or more, more preferably 60% by mass or more, even more preferably 70% by mass or more, and even more preferably 80% by mass or more. From the perspective of antibacterial performance, it is preferably 98% by mass or less, more preferably 96% by mass or less, and even more preferably 94% by mass or less. The total content of the surfactants contained in the cleaning composition may be the total content of component (A), component (D), and component (F) described below.

[0166] <(F)Component>

[0167] From the viewpoint of cleaning or foam suppression, the cleaning composition of the present invention may optionally contain a surfactant other than the components (A) and (D) as the component (F).

[0168] As surfactants other than the component (A) and the component (D), one or more kinds selected from amphoteric surfactants can be mentioned.

[0169] Examples of amphoteric surfactants include N-alkanoylaminopropyl-N,N-dimethylamine oxide, N-alkyl-N,N-dimethylamine oxide, 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. Among these, the alkanoyl group is, for example, lauroyl or myristoyl. In addition, among these, the alkyl group is, for example, lauryl or myristyl.

[0170] When the cleaning composition of the present invention contains component (F), the content of component (F) in the cleaning composition of the present invention is preferably 0.1% by mass or more, more preferably 0.2% by mass or more, and even more preferably 0.3% by mass or more, and is preferably 2% by mass or less, more preferably 1.5% by mass or less, and even more preferably 1.2% by mass or less, from the viewpoint of cleaning performance and foaming.

[0171] (G) Ingredients

[0172] The cleaning composition of the present invention may optionally contain a polyalkylene glycol having a weight average molecular weight of 100 to 100,000 as the component (G).

[0173] As the component (G), one or more selected from polyethylene glycol and polypropylene glycol can be mentioned.

[0174] The weight average molecular weight of the component (G) is 100 or more, preferably 1,000 or more, more preferably 5,000 or more, and is 100,000 or less, preferably 30,000 or less, more preferably 20,000 or less, and further preferably 15,000 or less.

[0175] Here, the weight average molecular weight is a value determined by gel permeation chromatography using polystyrene as a standard substance.

[0176] When the cleaning composition of the present invention contains component (G), from the viewpoint of stability, the content of component (G) in the cleaning composition is preferably 0.001 mass % or more, more preferably 0.01 mass % or more, even more preferably 0.1 mass % or more, and even more preferably 0.2 mass % or more, and is preferably 5 mass % or less, more preferably 4 mass % or less, even more preferably 3 mass % or less, even more preferably 2 mass % or less, and even more preferably 1 mass % or less.

[0177] <(H) Ingredient>

[0178] The cleaning composition of the present invention may optionally contain one or more enzymes selected from the group consisting of proteases, lipases, and amylases as the component (H).

[0179] Examples of proteases include serine proteases (EC 3.4.21) and metalloproteases (EC 3.4.17 or EC 3.4.24). Preferred examples of proteases include neutral or alkaline serine proteases such as subtilisin (EC 3.4.21.62).

[0180] Examples of lipases include triacylglycerol lipase (EC3.1.1.3), phospholipase A2 (EC3.1.1.4), lysophospholipase (EC3.1.1.5), monoglyceride lipase (EC3.1.1.23), galactolipase (EC3.1.1.26), phospholipase A1 (EC3.1.1.32), and lipoprotein lipase (EC3.1.1.34).

[0181] Examples of amylases include α-amylase (EC 3.2.1.1), β-amylase (EC 3.2.1.2), and / or glucoamylase (EC 3.2.1.3). Preferred examples of amylases include neutral or alkaline α-amylases, preferably derived from microorganisms such as bacteria or fungi.

[0182] When the cleaning composition of the present invention contains component (H), the content of component (H) in the cleaning composition of the present invention, based on the mass of the enzyme protein in the cleaning composition, is preferably 0.002 mass% or more, more preferably 0.004 mass% or more, even more preferably 0.008 mass% or more, and is preferably 0.12 mass% or less, more preferably 0.1 mass% or less, even more preferably 0.08 mass% or less, and even more preferably 0.04 mass% or less, from the viewpoint of cleaning performance.

[0183] In the present invention, the definition regarding the mass of the component (H) is calculated as the amount of enzyme protein.

[0184] Regarding the component (H), the enzyme protein can be quantified using, for example, a protein detection kit Lowry Kit manufactured by Nacalai Tesque Co., Ltd., and a method according to the operating instructions can be employed.

[0185] <(I) Chelating agent>

[0186] The cleaning composition of the present invention may optionally contain (I) a chelating agent [hereinafter referred to as component (I)].

[0187] Specific examples of component (I) include aminopolyacetic acids such as ethylenediaminetetraacetic acid, diethylenetriaminepentaacetic acid, and hydroxyethyliminodiacetic acid, or salts thereof; organic acids such as citric acid, lactic acid, tartaric acid, and malic acid, or salts thereof; 1-hydroxyethylene-1,1-diphosphonic acid, diethylenetriaminepenta(methylenephosphonic acid), and alkali metal salts or lower amine salts thereof, and one or more of these can be used.

[0188] Examples of the salt of the component (I) include alkali metal salts such as sodium salts and potassium salts; and lower amine salts of monoethanolamine, diethanolamine, triethanolamine, and the like.

[0189] When the cleaning composition of the present invention contains component (I), the content of component (I) in the cleaning composition of the present invention is preferably 0.5% by mass or more, more preferably 1.0% by mass or more, and even more preferably 2.0% by mass or more from the viewpoint of cleaning performance, and is preferably 10% by mass or less, more preferably 8% by mass or less, and even more preferably 6% by mass or less from the viewpoint of formulation.

[0190] The cleaning composition of the present invention may contain water. Examples of water include ion-exchanged water, purified water, and distilled water. Water is used as the remainder excluding components (A) to (I) and any optional components. Water also includes water used to prepare the cleaning composition.

[0191] The detergent composition of the present invention may optionally contain other ingredients known in the field of laundry detergents, and may contain, for example, bleaching agents (such as bleach activators), anti-recontamination agents, organic reducing agents, fluorescent whitening agents, foam suppressants (such as silicones), organic solvents, fragrances, colorants, antibacterial agents (such as triclosan), etc. [however, excluding substances corresponding to components (A) to (I)] as other ingredients.

[0192] The cleaning composition of the present invention may be a solid cleaning composition. The cleaning composition of the present invention may be in the form of a tablet, powder, particle, granule, or paste. From the perspective of solubility, the cleaning composition of the present invention is preferably a cleaning composition selected from tablets, powders, particles, granules, and pastes, and more preferably a cleaning composition selected from tablets, powders, and pastes. The cleaning composition of the present invention may be a powdered cleaning composition.

[0193] The cleaning composition of the present invention can be produced by known methods. For example, it can be produced by spray drying, dry neutralization, dry granulation, dry blending, fluidized bed drying, thin film drying, extrusion granulation, tumbling granulation, stirring granulation, compaction granulation, surfactant loading, or a combination thereof.

[0194] The bulk density of the cleaning composition of the present invention varies depending on the production method, but is preferably 0.2 g / cm 3 More than 0.3 g / cm 3 More preferably, 0.35 g / cm 3 More than, and preferably 1g / cm 3 Below, more preferably 0.95g / cm 3 Below, more preferably 0.9 g / cm 3 the following.

[0195] When the detergent composition of the present invention is a powder detergent composition, the average particle size of the detergent composition of the present invention is preferably 100 μm or more, more preferably 150 μm or more, further preferably 200 μm or more, and is preferably 800 μm or less, more preferably 750 μm or less, further preferably 700 μm or less.

[0196] The average particle size is a value determined from the mass fraction based on the mesh size after vibrating the particles for 5 minutes using a standard sieve according to JIS Z 8801.

[0197] Cleaning products

[0198] The present invention provides a cleaning article comprising the cleaning composition of the present invention and a water-soluble film encapsulating the cleaning composition. In other words, the present invention provides a cleaning article comprising the cleaning composition of the present invention and a water-soluble film, wherein the cleaning composition is encapsulated in the water-soluble film.

[0199] The cleaning article of the present invention may be a cleaning article in which the cleaning composition of the present invention is packaged with a water-soluble film. That is, the cleaning composition of the present invention may be a cleaning composition packaged with a water-soluble film.

[0200] In the present invention, the "water solubility" of a water-soluble film means the following: 500 g of ion-exchanged water at 30°C is placed in a 1-liter glass beaker, a Teflon (registered trademark) stirrer with a diameter of 8 cm is placed therein, 1 g of the film to be evaluated is added thereto, and after stirring at 100 rpm for 30 minutes, no insoluble matter is observed in appearance.

[0201] From the viewpoint of preventing accidental ingestion and solubility, the thickness of the water-soluble film is preferably 1 μm or more, more preferably 10 μm or more, and even more preferably 50 μm or more, and is preferably 200 μm or less, more preferably 150 μm or less, and even more preferably 100 μm or less.

[0202] The water-soluble film is preferably composed of a polymer. The water-soluble film can be obtained by methods known in the art such as casting, blow molding, extrusion molding, injection molding, etc. of the polymer. As a non-limiting example of the polymer used to make the water-soluble film, there can be listed: polyvinyl alcohol (PVA), vinyl alcohol copolymer, polyvinyl pyrrolidone, polyoxyalkylene, (modified) cellulose, (modified) cellulose ether or (modified) cellulose ester or (modified) cellulose amide, polycarboxylic acids and their salts, copolymers of maleic acid / acrylic acid, polyamino acids, i.e. peptides, polyamides such as polyacrylamide, polysaccharides such as starch and gelatin, natural rubbers such as xanthan gum and carragheen (carragum). Vinyl alcohol copolymer is a copolymer of vinyl alcohol and other monomers (such as ethylene, acrylic acid). It is preferred that the water-soluble film comprises a polymer selected from polyacrylate and water-soluble acrylate, methylcellulose, sodium carboxymethylcellulose, dextrin, ethylcellulose, hydroxyethylcellulose, maltodextrin, polymethacrylate, polyvinyl alcohol, vinyl alcohol copolymer, hydroxypropyl methylcellulose (HPMC), and combinations thereof. More preferably, the water-soluble film comprises a polymer selected from polyvinyl alcohol, vinyl alcohol copolymers, and hydroxypropyl methylcellulose. Even more preferably, the water-soluble film comprises polyvinyl alcohol, such as SOLUBLON available from AICELLO CORPORATION. Suitable polymers for producing water-soluble films are described, for example, in U.S. Patent No. 6,995,126.

[0203] In the detergent article of the present invention, the total area of ​​the water-soluble film in contact with the detergent composition of the present invention is preferably 10 cm from the viewpoint of further improving the stability of the product. 2 More than 20 cm, more preferably 2 More than 30cm2 More than 40 cm 2 Above, and, from the same viewpoint, preferably 100 cm 2 Below, more preferably 70cm 2 Below, more preferably 60cm 2 Below, more preferably 45cm 2 the following.

[0204] The detergent article of the present invention can be made by any preferred process known in the art (e.g., a process for making detergent bags). Examples of bag making processes are described in U.S. Patent No. 6,995,126, U.S. Patent No. 7,127,874, U.S. Patent No. 8,156,713, U.S. Patent No. 7,386,971, U.S. Patent No. 7,439,215, and U.S. Patent Application Publication No. 2009 / 199877.

[0205] The amount of content of each detergent article of the present invention is preferably 5 g or more, more preferably 8 g or more, and even more preferably 10 g or more, and is preferably 50 g or less, more preferably 30 g or less, and even more preferably 25 g or less.

[0206] The preferred shape and size of each cleaning article of the present invention is, for example, a quadrilateral shape, with one side preferably being 1 cm to 5 cm in length, and a thickness preferably being 1 cm to 5 cm, more preferably 1 cm to 4 cm. Furthermore, the weight of each cleaning article of the present invention is preferably 5 g or more, more preferably 10 g or more, and even more preferably 15 g or more, and preferably 50 g or less, more preferably 40 g or less, and even more preferably 30 g or less.

[0207] Another preferred shape and size of each cleaning article of the present invention is, for example, a rectangular parallelepiped, preferably having a length of 5 cm to 20 cm, a width of 1 cm to 4 cm, and a thickness of 1 cm to 5 cm, more preferably 1 cm to 4 cm. Furthermore, each cleaning article of the present invention preferably has a mass of 5 g or more, more preferably 10 g or more, and preferably 50 g or less, more preferably 40 g or less, even more preferably 30 g or less, and even more preferably 20 g or less.

[0208] Examples of the cleaning article of the present invention include cleaning articles comprising the cleaning composition of the present invention packaged in a water-soluble film, wherein the cleaning article has a major axis diameter of 30 mm to 200 mm at its maximum projected area, an aspect ratio of the major axis diameter to the minor axis diameter perpendicular to the major axis diameter (major axis diameter / minor axis diameter) of 5 or greater, and a breaking strength of 300 N or greater. In other words, the cleaning article of the present invention may be a cleaning article comprising the cleaning composition of the present invention and a water-soluble film, wherein the cleaning composition is packaged in the water-soluble film, wherein the cleaning article has a major axis diameter of 30 mm to 200 mm at its maximum projected area, an aspect ratio of the major axis diameter to the minor axis diameter perpendicular to the major axis diameter (major axis diameter / minor axis diameter) of 5 or greater, and a breaking strength of 300 N or greater.

[0209] From the perspective of suppressing a decrease in cleaning power, the aspect ratio of the major axis diameter of the maximum projected area of ​​the cleaning article of the present invention to the minor axis diameter orthogonal to the major axis diameter (major axis diameter / minor axis diameter) is preferably 5 or more, more preferably 6 or more, further preferably 7 or more, and even more preferably 8 or more. From the perspective of ease of use and storage, it is preferably 20 or less, more preferably 16 or less, further preferably 13 or less, and even more preferably 10 or less.

[0210] From the perspective of ease of use, the major axis diameter of the maximum projected area of ​​the cleaning article of the present invention is preferably 30 mm or greater, more preferably 50 mm or greater, and even more preferably 80 mm or greater, and is preferably 200 mm or less, more preferably 160 mm or less, and even more preferably 120 mm or less.

[0211] From the perspective of ease of use, the minor axis diameter of the maximum projected area of ​​the cleaning article of the present invention is preferably 5 mm or greater, more preferably 10 mm or greater, even more preferably 12 mm or greater, and even more preferably 14 mm or greater, and is preferably 25 mm or less, more preferably 23 mm or less, and even more preferably 20 mm or less.

[0212] In the present invention, the maximum projected area refers to the area of ​​the projection with the largest horizontal projection area when the cleaning article is projected horizontally from all planes. "Projection" has the same meaning as the mathematical concept of "projection," i.e., the shadow cast on a plane by shining parallel light on an object horizontally.

[0213] In addition, in the present invention, regarding the method for measuring the major axis diameter and minor axis diameter of the maximum projected area of ​​the cleaning article, when the shape of the maximum projected area of ​​the cleaning article is elliptical, the major axis diameter and minor axis diameter are directly measured. In addition, when the shape of the maximum projected area of ​​the cleaning article is rectangular (the length of the vertical axis > the length of the horizontal axis), the length of the vertical axis is used as the major axis diameter, and the length of the horizontal axis is used as the minor axis diameter for measurement. In addition, when the shape of the maximum projected area of ​​the cleaning article is amorphous, the longest part is used as the major axis diameter, and the longest part of the line (axis) perpendicular to the above-mentioned major axis diameter is used as the minor axis diameter for measurement.

[0214] The maximum projected area of ​​the detergent article includes the water-soluble film packaging the detergent composition and also includes portions where the water-soluble films overlap, such as the sealing portion.

[0215] For example, when two water-soluble films are bonded together and used to package a detergent composition, the larger the area of ​​contact between the water-soluble film and the detergent composition, the more preferable. When two water-soluble films are bonded together and used to package a detergent composition, the ratio of the area of ​​contact between each water-soluble film and the detergent composition relative to the total area of ​​the surface of each water-soluble film facing the other water-soluble film is preferably 60% or more, more preferably 70% or more, even more preferably 80% or more, even more preferably 90% or more, and less than 100%. In this specification, the area of ​​contact between the water-soluble film and the detergent composition may be the area of ​​the surface of the water-soluble film that forms the space for accommodating the detergent composition.

[0216] Alternatively, the detergent article may be a case where the end of a water-soluble film packaging a detergent composition is connected to the end of another water-soluble film packaging a detergent composition in a detachable state. In this case, the aspect ratio (major axis diameter / minor axis diameter) of the major axis diameter of the maximum projected area of ​​the detergent article to the minor axis diameter perpendicular to the major axis diameter is measured as follows: for each water-soluble film packaging a detergent composition, the maximum projected area of ​​the detergent article is calculated, and the measurement is performed based on the calculated maximum projected area. That is, when the detergent article is a case where the ends of the water-soluble film packaging a detergent composition are connected to each other in a detachable state, the connected portion of the water-soluble film packaging the detergent composition is separated to perform the above-mentioned aspect ratio measurement. In addition, when the connecting portion is unknown, the line that divides the article into equal parts of the packaging detergent composition is considered to be the connecting portion.

[0217] The cleaning article of the present invention can preferably be used on textile products, on hard surfaces such as dishes, or in automatic dishwashing machines, preferably on textile products.

[0218] When using the detergent composition of the present invention or the detergent article to clean fiber products, the fiber to be cleaned can be any type of hydrophobic fiber or hydrophilic fiber. As hydrophobic fiber, for example, can exemplify: protein fiber (milk protein casein fiber, Promix etc.), polyamide fiber (nylon etc.), polyester fiber (polyester etc.), polyacrylonitrile fiber (acrylic acid etc.), polyvinyl alcohol fiber (vinylon etc.), polyvinyl chloride fiber (polyvinyl chloride etc.), polyvinylidene chloride fiber (vinylidene etc.), polyolefin fiber (polyethylene, polypropylene etc.), polyurethane fiber (polyurethane etc.), polyvinyl chloride / polyvinyl alcohol copolymer fiber (polyvinyl chloride alcohol fiber etc.), polyalkylene parahydroxybenzoate fiber (benzoate etc.), polyvinyl fluoride fiber (polytetrafluoroethylene etc.), glass fiber, carbon fiber, aluminum oxide fiber, silicon carbide fiber, rock fiber (volcanic rock fiber), slag fiber (slug fiber), metal fiber (gold wire, silver wire, steel fiber) etc. Examples of hydrophilic fibers include: hair fibers (cotton, kapok, etc.), bast fibers (hemp, flax, ramie, hemp, jute, etc.), leaf vein fibers (Manila hemp, ramie, etc.), coconut fibers, rush, straw, animal hair fibers (wool, mohair, cashmere goat hair, camel hair, alpaca hair, llama hair, angora rabbit hair, etc.), silk fibers (domestic silk fibers, wild silk fibers), feathers, cellulose fibers (rayon, high wet modulus viscose fibers, cuprammonium fibers, acetate fibers, etc.), etc.

[0219] Regarding the fiber, from the viewpoint of finishing properties, the fiber is preferably a fiber containing cotton fiber. From the viewpoint of finishing properties of the fiber, the content of the cotton fiber in the fiber is preferably 5% by mass or more, more preferably 10% by mass or more, even more preferably 15% by mass or more, even more preferably 20% by mass or more, even more preferably 40% by mass or more, even more preferably 60% by mass or more, even more preferably 80% by mass or more, and is preferably 100% by mass or less, and may be 100% by mass.

[0220] In the present invention, fiber products refer to fabrics made of the above-mentioned hydrophobic fibers or hydrophilic fibers, such as woven fabrics, knitted fabrics, non-woven fabrics, etc., as well as vests, T-shirts, suit shirts, women's shirts, casual pants, hats, handkerchiefs, towels, knitted fabrics, socks, underwear, tights, etc. obtained using the fabrics.

[0221] [Cleaning methods for fiber products]

[0222] The present invention provides a method for cleaning fiber products, wherein the fiber products are cleaned using a cleaning solution formed by mixing the detergent composition of the present invention with water (hereinafter referred to as the "cleaning solution of the present invention"). In the method for cleaning fiber products of the present invention, the detergent composition of the present invention can be used in the form of a detergent article formed by packaging the detergent composition of the present invention with a water-soluble film. That is, the present invention provides a method for cleaning fiber products, wherein the fiber products are cleaned using a cleaning solution formed by mixing the detergent article of the present invention with water (hereinafter referred to as the "cleaning solution of the present invention" as described above).

[0223] The cleaning method for textile products of the present invention can appropriately apply the embodiments described in the detergent composition of the present invention and the detergent article of the present invention.

[0224] The method for cleaning fiber products of the present invention may be a method in which the cleaning composition of the present invention and water are placed in a cleaning tank and mixed to prepare the cleaning solution of the present invention, and then the fiber product to be cleaned is placed therein and the fiber product is cleaned. From the perspective of enjoying the effects of the present invention, a method is preferably a method in which the cleaning composition of the present invention, water, and the fiber product are placed in the cleaning tank, and the cleaning solution of the present invention is prepared while the cleaning composition of the present invention is dissolved in the water, while the fiber product is cleaned.

[0225] The detergent article of the present invention can also be used in the method for cleaning fiber products of the present invention. In this case, in the above method, the detergent composition of the present invention can be replaced with the detergent article of the present invention to prepare a cleaning solution.

[0226] In the cleaning liquid of the present invention, from the perspectives of environmental considerations and cleaning performance, the amount of water when mixing the cleaning composition of the present invention with water is adjusted so that the total amount of the cleaning composition of the present invention per 1 L of water is preferably 0.01 g or more, more preferably 0.1 g or more, and even more preferably 0.3 g or more, and is preferably 10 g or less, more preferably 1 g or less, and even more preferably 0.5 g or less.

[0227] For the cleaning liquid of the present invention, from the viewpoint of cleaning performance, the content of component (A) in the above-mentioned cleaning liquid is preferably 15 ppm or more, more preferably 30 ppm or more, and further preferably 45 ppm or more, and from the viewpoint of rinsing, it is preferably 300 ppm or less, more preferably 250 ppm or less, and further preferably 200 ppm or less.

[0228] In the cleaning liquid of the present invention, from the viewpoint of cleaning performance, the content of component (B) in the above-mentioned cleaning liquid is preferably 50 ppm or more, more preferably 100 ppm or more, and even more preferably 150 ppm or more, and from the viewpoint of residue in cold water, it is preferably 800 ppm or less, more preferably 700 ppm or less, and even more preferably 600 ppm or less.

[0229] In the cleaning liquid of the present invention, from the viewpoint of suppressing undissolved residues, the content of component (C) in the cleaning liquid is preferably 30 ppm or more, more preferably 60 ppm or more, and even more preferably 100 ppm or more, and from the viewpoint of suppressing trace residues, it is preferably 160 ppm or less, more preferably 150 ppm or less, and even more preferably 140 ppm or less.

[0230] From the viewpoint of antibacterial performance, the content of component (D) in the cleaning liquid of the present invention is preferably 3 ppm or more, more preferably 5 ppm or more, further preferably 8 ppm or more, and for example, 50 ppm or less.

[0231] From the perspective of cleaning performance for particulate stains, the content of component (E) in the cleaning liquid of the present invention is preferably 5 ppm or more, more preferably 10 ppm or more, further preferably 15 ppm or more, and for example, 100 ppm or less.

[0232] When the cleaning liquid of the present invention contains component (F), from the viewpoint of cleaning performance and foaming performance, the content of component (F) in the above-mentioned cleaning liquid is preferably 0.5 ppm or more, more preferably 1.0 ppm or more, and further preferably 1.5 ppm or more of component (F), and from the viewpoint of rinsing performance, it is preferably 20 ppm or less, more preferably 18 ppm or less, and further preferably 16 ppm or less.

[0233] When the cleaning liquid of the present invention contains component (G), the content of component (G) in the cleaning liquid is preferably 0.5 ppm or more, more preferably 1 ppm or more, further preferably 1.5 ppm or more, and, for example, 50 ppm or less, from the viewpoint of stability and dispersibility of the hydrophobic particles.

[0234] When the cleansing liquid of the present invention contains component (H), the content of component (H) in the cleansing liquid, based on the mass of the enzyme protein, is preferably 0.02 ppm or more, more preferably 0.04 ppm or more, and even more preferably 0.06 ppm or more from the viewpoint of cleansing performance, and is preferably 1.2 ppm or less, more preferably 1.0 ppm or less, and even more preferably 0.80 ppm or less from the viewpoint of skin irritation.

[0235] When the cleaning liquid of the present invention contains component (I), from the viewpoint of cleaning performance, the content of component (I) in the cleaning liquid is preferably 1 ppm or more, more preferably 2.5 ppm or more, further preferably 5 ppm or more, and, for example, 100 ppm or less.

[0236] In recent years, there has been a trend toward increasing size of washing machines, which has resulted in a decrease in the bath ratio, which is the ratio of the mass (kg) of the fiber product to the amount (liter) of the cleaning solution. This ratio may be referred to as the bath ratio below. In household washing machines, a decrease in the bath ratio can increase friction between the fiber products due to agitation during cleaning, impairing the finishability of the fiber products. From the perspective of cleaning performance, the bath ratio is preferably 5 or greater, more preferably 10 or greater, and even more preferably 20 or greater. From the perspective of washing efficiency, the bath ratio is preferably 100 or less, more preferably 50 or less, and even more preferably 30 or less.

[0237] The fiber product cleaning method of the present invention is suitable for: a method in which the fiber is transported by rollers or the like while being immersed in a liquid used for refining; and a rotary cleaning method. The rotary cleaning method refers to a cleaning method in which a fiber product that is not fixed to a rotary machine is rotated around a rotating axis together with a cleaning liquid. The rotary cleaning method can be implemented by a rotary washing machine. Therefore, in the present invention, from the perspective of cleaning the fiber product more cleanly, it is preferred to use a rotary washing machine for cleaning the fiber product. As a rotary washing machine, specifically, a drum washing machine, a pulsator washing machine or an agitator washing machine can be cited. As these rotary washing machines, commercially available household washing machines can be used respectively.

[0238] In addition to the above-described embodiment, the present invention discloses the following aspects.

[0239] <1>

[0240] A cleaning composition comprising 5% by mass or more and 40% by mass of the following component (A), 20% by mass or more and 80% by mass or less of the following component (B), 5% by mass or more and 40% by mass or less of the following component (C), 0.1% by mass or more and 5.0% by mass or less of the following component (D), and 0.1% by mass or more and 10% by mass or less of the following component (E).

[0241] The mass ratio (a2) / [(a1)+(a2)] of the content of the component (a2) to the total content of the components (a1) and (a2) is 0 or more and 0.5 or less.

[0242] The mass ratio (b2) / [(b1)+(b2)] of the content of the component (b2) to the total content of the components (b1) and (b2) is 0.2 or more and 0.8 or less.

[0243] The mass ratio (C) / [(B)+(C)] of the content of the component (C) to the total content of the components (B) and (C) exceeds 0 and is 0.50 or less.

[0244] (A) component: one or more selected from the following (a1) component and the following (a2) component,

[0245] (a1) ingredient: nonionic surfactant,

[0246] (a2) ingredient: anionic surfactant,

[0247] (B) component: at least one selected from the following (b1) component and the following (b2) component,

[0248] (b1) Component: a water-soluble inorganic salt having a pH of 9.0 or higher in a 0.1 g / L aqueous solution at 20°C.

[0249] (b2) Ingredient: a water-soluble inorganic salt, the pH value of which in a 0.1 g / L aqueous solution at 20° C. is less than 9.0,

[0250] (C) ingredient: water-insoluble inorganic component,

[0251] (D) ingredient: cationic surfactant,

[0252] Component (E): anionic polymer.

[0253] <2>

[0254] The cleaning composition as described in <1> above, wherein the component (a1) is a nonionic surfactant represented by the following general formula (a1-1),

[0255] R 1a (CO) m O-(A1a O) n -R 2a (a1-1)

[0256] Where R 1a is an aliphatic hydrocarbon group having 8 or more, preferably 10 or more, more preferably 12 or more, and 18 or less, preferably 16 or less, more preferably 14 or less carbon atoms, preferably a group selected from an alkyl group and an alkenyl group; R 2a is a hydrogen atom or a methyl group, preferably a hydrogen atom; CO is a carbonyl group, m is 0 or 1, preferably 0; A 1a The O group is one or more selected from alkyleneoxy groups having 2 or more and 4 or less carbon atoms, preferably one or more selected from alkyleneoxy groups having 2 or more and 3 or less carbon atoms, more preferably ethyleneoxy; n is A 1a The average added molar number of O groups is 1 or more, preferably 6 or more, more preferably 8 or more, and 30 or less, preferably 25 or less, more preferably 20 or less, and even more preferably 15 or less.

[0257] <3>

[0258] The cleaning composition according to <1> or <2>, wherein the component (a2) is one or more compounds selected from the group consisting of a compound represented by the following general formula (a2-1) [hereinafter referred to as component (a2-1)], a compound represented by the following general formula (a2-2) [hereinafter referred to as component (a2-2)], a compound represented by the following general formula (a2-3) [hereinafter referred to as component (a2-3)], and a compound represented by the following general formula (a2-4) [hereinafter referred to as component (a2-4)], preferably one or more compounds selected from the group consisting of component (a2-1), component (a2-2), and component (a2-3), and more preferably one or more compounds selected from the group consisting of component (a2-1) and component (a2-2).

[0259] R 3a -B-SO3M (a2-1)

[0260] In formula (a2-1), R 3a represents an alkyl group having 9 or more, preferably 10 or more, and preferably 14 or less, more preferably 13 or less carbon atoms; B represents a benzene ring; R bonded to a carbon atom of B 3a The carbon atom is a secondary carbon atom; M represents a cation, preferably an alkali metal ion such as sodium ion, potassium ion or an alkanolammonium ion such as monoethanolammonium ion, diethanolammonium ion, more preferably a sodium ion; relative to R bonded to B 3a , the sulfonic acid group is bonded to the ortho, meta or para position,

[0261] R 4a -COOM (a2-2)

[0262] In formula (a2-2), R 4a represents an alkyl or alkenyl group having 10 or more, preferably 11 or more, and 18 or less, preferably 16 or less, more preferably 14 or less, and further preferably 13 or less carbon atoms, preferably one or more groups selected from a linear alkyl group, a branched alkyl group, a linear alkenyl group, and a branched alkenyl group, more preferably a linear alkyl group; M represents a cation, preferably an alkali metal ion such as a sodium ion or a potassium ion, or an alkanolammonium ion such as a monoethanolammonium ion or a diethanolammonium ion, more preferably a sodium ion,

[0263] R 5a -O-(AO) n -SO3M (a2-3)

[0264] In formula (a2-3), R 5a is an aliphatic hydrocarbon group having 10 or more, preferably 11 or more, more preferably 12 or more, and 18 or less, preferably 16 or less, more preferably 14 or less carbon atoms, preferably a linear or branched aliphatic hydrocarbon group, more preferably a linear aliphatic hydrocarbon group, and further preferably a linear alkyl group; the AO group is one or more alkyleneoxy groups selected from ethyleneoxy and propyleneoxy groups, preferably an alkyleneoxy group containing an ethyleneoxy group; n is the average added mole number of the AO group, and is 0 or more and 20 or less, preferably 16 or less, more preferably 12 or less, further preferably 8 or less, and further more preferably 4 or less; M represents a cation, preferably an alkali metal ion such as sodium ion, potassium ion, or an alkanolammonium ion such as monoethanolammonium ion, diethanolammonium ion, and more preferably a sodium ion,

[0265] R 6a -CH(SO3M)COOR 7a (a2-4)

[0266] In formula (a2-4), R 6a represents an alkyl group having 8 or more carbon atoms, more preferably 10 or more carbon atoms, further preferably 12 or more carbon atoms, and preferably 18 or less carbon atoms, more preferably 16 or less carbon atoms; R 7a represents a hydrogen atom, or an alkyl group having 1 or more carbon atoms and preferably 5 or less, more preferably 4 or less, and further preferably 3 or less; M represents a cation, preferably an alkali metal ion such as a sodium ion or a potassium ion, or an alkanolammonium ion such as a monoethanolammonium ion or a diethanolammonium ion, more preferably a sodium ion.

[0267] <4>

[0268] The cleaning composition according to any one of <1> to <3>, wherein the component (b1) is preferably at least one selected from alkali metal carbonates, more preferably at least one selected from sodium carbonate and potassium carbonate, and even more preferably sodium carbonate.

[0269] <5>

[0270] The cleaning composition as described in any one of <1> to <4> above, wherein the component (b2) is one or more compounds selected from inorganic sulfates, inorganic halogen compounds, and alkali metal bicarbonates, and preferably contains one or more water-soluble inorganic salts selected from inorganic sulfates and alkali metal bicarbonates.

[0271] <6>

[0272] The cleaning composition according to any one of <1> to <4>, wherein the component (b2) is one or more compounds selected from the group consisting of sodium sulfate, magnesium sulfate, aluminum sulfate, potassium sulfate, sodium chloride, potassium chloride, calcium chloride, magnesium chloride, sodium bicarbonate, and potassium bicarbonate.

[0273] <7>

[0274] The cleaning composition according to any one of <1> to <6> above, wherein component (C) is at least one selected from amorphous silica, calcium silicate, clay minerals, crystalline aluminosilicates, and amorphous aluminosilicates, and preferably at least one selected from clay minerals and crystalline aluminosilicates.

[0275] <8>

[0276] The cleaning composition according to any one of <1> to <7>, wherein the component (D) is one or more selected from the group consisting of a compound represented by the following general formula (d1) and a compound represented by the following general formula (d2).

[0277]

[0278] Where R 1d is an aliphatic hydrocarbon group having 8 or more, preferably 9 or more, more preferably 10 or more, further preferably 12 or more, and 18 or less, preferably 16 or less carbon atoms, preferably an alkyl group or an alkenyl group, more preferably an alkyl group; R 2d is a group selected from an aliphatic hydrocarbon group having 8 to 18 carbon atoms, an alkyl group having 1 to 3 carbon atoms, and a hydroxyalkyl group having 1 to 3 carbon atoms; R 3d and R 4d Each independently represents a group selected from an alkyl group having 1 to 3 carbon atoms and a hydroxyalkyl group having 1 to 3 carbon atoms, preferably a group selected from an alkyl group having 1 to 3 carbon atoms; X- is an anion, preferably one or more anions selected from halogen ions and alkyl sulfate ions having 1 to 3 carbon atoms,

[0279]

[0280] Where R 5d is an aliphatic hydrocarbon group having 8 or more, preferably 10 or more, more preferably 12 or more, and 18 or less, preferably 16 or less carbon atoms, preferably an alkyl group or an alkenyl group, more preferably an alkyl group; R 6d and R 7d Each independently represents a group selected from an alkyl group having 1 to 3 carbon atoms and a hydroxyalkyl group having 1 to 3 carbon atoms, preferably a group selected from an alkyl group having 1 to 3 carbon atoms; X - The anion is preferably one or more anions selected from the group consisting of halogen ions and alkyl sulfate ions having 1 to 3 carbon atoms.

[0281] <9>

[0282] The cleaning composition according to any one of <1> to <8>, wherein the component (D) is at least one selected from the group consisting of benzalkonium chloride and alkyltrimethylammonium chloride.

[0283] <10>

[0284] The cleaning composition according to any one of <1> to <9>, wherein the component (E) is a polymer having a carboxylic acid group or a salt thereof and having a weight-average molecular weight of 3,000 or greater, preferably at least one selected from polyacrylic acid and salts thereof, copolymers of acrylic acid and maleic acid and salts thereof, and polymaleic acid and salts thereof, and preferably has a weight-average molecular weight of 3,000 or greater, more preferably 3,500 or greater, even more preferably 4,000 or greater, even more preferably 5,000 or greater, even more preferably 6,000 or greater, even more preferably 7,000 or greater, even more preferably 8,000 or greater, even more preferably 9,000 or greater, even more preferably 10,000 or greater, and preferably 100,000 or less, more preferably 50,000 or less, even more preferably 25,000 or less, even more preferably 15,000 or less.

[0285] <11>

[0286] The cleaning composition according to any one of <1> to <10>, wherein the content of component (A) in the cleaning composition is 5% by mass or more, preferably 7% by mass or more, more preferably 9% by mass or more, and even more preferably 11% by mass or more, and is 40% by mass or less, preferably 30% by mass or less, more preferably 25% by mass or less, and even more preferably 20% by mass or less.

[0287] <12>

[0288] The cleaning composition according to any one of items <1> to <11>, wherein in the cleaning composition, the mass ratio (a2) / [(a1)+(a2)] of the content of component (a2) to the total content of component (a1) and component (a2) is 0 or more, preferably 0.05 or more, more preferably 0.10 or more, and even more preferably 0.15 or more, and is 0.5 or less, preferably 0.45 or less, more preferably 0.40 or less, and even more preferably 0.35 or less.

[0289] <13>

[0290] The cleaning composition according to any one of <1> to <12>, wherein the content of component (B) in the cleaning composition is 20% by mass or more, preferably 25% by mass or more, more preferably 30% by mass or more, and even more preferably 40% by mass or more, and is 80% by mass or less, preferably 70% by mass or less, more preferably 65% ​​by mass or less, even more preferably 60% by mass or less, and even more preferably 55% by mass or less.

[0291] <14>

[0292] The cleaning composition according to any one of <1> to <13>, wherein in the cleaning composition, the mass ratio (b2) / [(b1)+(b2)] of the content of component (b2) to the total content of component (b1) and component (b2) is 0.2 or more, preferably 0.30 or more, more preferably 0.35 or more, and even more preferably 0.40 or more, and is 0.8 or less, preferably 0.7 or less, more preferably 0.65 or less, even more preferably 0.60 or less, even more preferably 0.55 or less, and even more preferably 0.50 or less.

[0293] <15>

[0294] The cleaning composition according to any one of <1> to <14>, wherein the content of component (C) in the cleaning composition is 5% by mass or more, preferably 10% by mass or more, more preferably 15% by mass or more, even more preferably 20% by mass or more, even more preferably 25% by mass or more, and is 40% by mass or less, preferably 35% by mass or less, more preferably 32.5% by mass or less, even more preferably 30% by mass or less.

[0295] <16>

[0296] The cleaning composition according to any one of <1> to <15>, wherein in the cleaning composition, the mass ratio (C) / [(B)+(C)] of the content of component (C) to the total content of component (B) and component (C) exceeds 0, is preferably 0.05 or more, more preferably 0.1 or more, even more preferably 0.15 or more, even more preferably 0.20 or more, even more preferably 0.25 or more, even more preferably 0.30 or more, and is 0.50 or less, preferably 0.45 or less, more preferably 0.40 or less, and even more preferably 0.38 or less.

[0297] <17>

[0298] The cleaning composition according to any one of <1> to <16>, wherein the content of component (D) in the cleaning composition is 0.1% by mass or more, preferably 0.5% by mass or more, more preferably 0.7% by mass or more, further preferably 1.0% by mass or more, further more preferably 2.0% by mass or more, and is 5.0% by mass or less, further 4.0% by mass or less, further 3.5% by mass or less, further 3.0% by mass or less.

[0299] <18>

[0300] The cleaning composition according to any one of <1> to <17>, wherein the content of component (E) in the cleaning composition is 0.1% by mass or more, preferably 1.0% by mass or more, more preferably 2.0% by mass or more, even more preferably 3.0% by mass or more, even more preferably 4.0% by mass or more, and is 10% by mass or less, preferably 8.0% by mass or less, more preferably 6.0% by mass or less, even more preferably 5.0% by mass or less.

[0301] <19>

[0302] The cleaning composition as described in any one of <1> to <18> above, wherein the ratio of the content of component (A) to the total content of surfactants contained in the cleaning composition, i.e., (A) / (total content of surfactants), is preferably 50 mass% or more, more preferably 60 mass% or more, further preferably 70 mass% or more, further more preferably 80 mass% or more, and is preferably 98 mass% or less, more preferably 96 mass% or less, and further preferably 94 mass% or less.

[0303] <20>

[0304] The cleaning composition as described in any one of <1> to <19> above, wherein the cleaning composition is a solid cleaning composition, preferably a cleaning composition selected from tablets, powders, microparticles, granules and pastes, and more preferably a cleaning composition selected from tablets, powders and pastes.

[0305] <21>

[0306] The cleaning composition according to any one of <1> to <20>, wherein the cleaning composition is used for fiber products, hard surfaces, or automatic dishwashing machines, and preferably for fiber products.

[0307] <22>

[0308] A cleaning article comprising the cleaning composition according to any one of <1> to <21> and a water-soluble film, wherein the cleaning composition is packaged in the water-soluble film.

[0309] <23>

[0310] A method for cleaning a textile product, comprising cleaning the textile product with a cleaning liquid prepared by mixing the cleaning composition according to any one of <1> to <21> above with water.

[0311] <24>

[0312] A method for cleaning a textile product, comprising cleaning the textile product with a cleaning liquid prepared by mixing the cleaning agent according to <22> above with water.

[0313] Example

[0314] [Examples, Comparative Examples]

[0315] <Ingredients>

[0316] The following components were used in Examples and Comparative Examples.

[0317] <(A)Component>

[0318] [Component (a1): nonionic surfactant]

[0319] AEO (10): polyoxyethylene alkyl ether (alkyl group carbon number 12, average number of added ethylene oxide moles 10), EMULGEN 110, manufactured by Kao Corporation

[0320] [Component (a2): anionic surfactant]

[0321] LAS: Laurylbenzenesulfonic acid, NEOPELEX GS, manufactured by Kao Corporation

[0322] AS-Na: Sodium alkyl sulfate (alkyl group has 12 to 16 carbon atoms), EMAL 10G, manufactured by Kao Corporation

[0323] Fatty acid: Fatty acid (12 to 18 carbon atoms), LUNAC L-55, manufactured by Kao Corporation

[0324] *LAS and fatty acids are converted to sodium salts by dry neutralization with sodium carbonate. Therefore, component (a2) is described as "LAS-Na" or "sodium fatty acid" in Table 1. In addition, sodium carbonate consumed by dry neutralization of LAS or fatty acids is added separately during the preparation of the detergent composition of the present invention.

[0325] <(B) Ingredient>

[0326] [(b1) ingredient]

[0327] Sodium carbonate: Light soda ash, bulk density 600g / L, average particle size 100μm, manufactured by Central Glass Co., Ltd.

[0328] [(b2) ingredient]

[0329] Sodium sulfate: Anhydrous neutral sodium sulfate, manufactured by Shikoku Chemical Co., Ltd.

[0330] Sodium chloride: Nakuru N, manufactured by Nankai Salt Industry Co., Ltd.

[0331] <(C) Ingredient>

[0332] Zeolite: Zeobuilder, model 4A, average particle size 3.5 μm, manufactured by ZEOBUILDER

[0333] Bentonite: Montmorillonite-type layered clay mineral "Odosolve K-400", median particle size 10μm, main component [Mg a Al b (Si2O5)4(OH)4] X- ·MeX+ , a=1, b=3, X=1, sodium content 1.6%, molar ratio [(Na+K+Li) / (Ca+Mg)]=2.1, manufactured by Kurosaki Shiratsu Co., Ltd.

[0334] <Component (D): Cationic surfactant>

[0335] BAC: Benzalkonium chloride (alkyl dimethylbenzyl ammonium chloride, alkyl group carbon number: 12 to 16), SANISOL B-50, manufactured by Kao Corporation

[0336] C16TMAC: Alkyl trimethylammonium chloride (alkyl group has 16 carbon atoms), Quartamin 60W, manufactured by Kao Corporation

[0337] <(E) Ingredient>

[0338] Polyacrylic acid: Sodium polyacrylate, weight-average molecular weight 10,000, trade name POIZ 536, manufactured by Kao Corporation

[0339] (G) Ingredients

[0340] Polyethylene glycol: PEG13000, weight average molecular weight 10,000, solid content 60%, manufactured by Mitsui Chemicals, Inc.

[0341] <(H) Ingredient>

[0342] Enzyme: Protease, Savinase 8.0T, manufactured by Novozymes

[0343] <Preparation of Cleaning Composition>

[0344] The cleaning compositions shown in Table 1 were prepared using the above-described formulation components by the following method.

[0345] In a mixing tank, 110 kg of sodium sulfate, 40% sodium polyacrylate, sodium chloride, and 93 kg of zeolite were mixed to prepare a slurry. The slurry was supplied to a spray drying tower (convection type) using a pump, and the slurry was sprayed from a pressure spray nozzle located near the top of the tower to obtain spray-dried granules. Next, the obtained spray-dried granules, the remaining sodium carbonate, and the sodium carbonate consumed by the dry neutralization of component (b2) were mixed to form the composition shown in Table 1. The nonionic surfactant of component (a1), polyethylene glycol, and the cationic surfactant of component (D) were mixed and then dry neutralized using component (a2). Next, bentonite was added, and the remaining zeolite was further added to form the composition shown in Table 1. Finally, an enzyme and a fragrance were mixed to form a powdered detergent composition.

[0346] In Example 1-3, dry neutralization using the component (a2) was not performed, and the granules of the alkyl sulfate were mixed with the enzyme and the fragrance last for mixing.

[0347] In addition, the mass % of the ingredients other than component (H) in the table are values ​​based on the active ingredient, and the amount (mass %) of component (H) is expressed as a wet weight basis. In addition, the amount (mass %) of component (a2) in the table represents the amount after dry neutralization, that is, the amount calculated as the sodium salt.

[0348] Cleaning performance evaluation

[0349] 1. Preparation of artificially contaminated cloth with sebum stains

[0350] The artificial soil of the following composition was applied to a 6 cm×6 cm wide cotton / polyester blended dyed cloth (cotton / polyester ratio=35 / 65, purchased from Gutou Store) in an amount of 100 mg per sheet by gravure coating to prepare the artificial soiled cloth used.

[0351] Artificial dirt

[0352] The composition containing the following A, B, C, D, and E was used as an artificial soil. The mass % of each is the ratio of the artificial soil in the final composition, and the amount of B was adjusted so that the total amount would be 100 mass %.

[0353] A: Sebum stain sample (used so that the mass percentage in the artificial soil is as follows: 0.44 mass% of lauric acid, 3.15 mass% of myristic acid, 2.35 mass% of pentadecanoic acid, 6.31 mass% of palmitic acid, 0.44 mass% of heptadecanoic acid, 1.60 mass% of stearic acid, 7.91 mass% of oleic acid, 2.22 mass% of n-hexadecyl palmitate, 6.66 mass% of squalene)

[0354] B: Weigh 105 mg of calcium chloride dihydrate and dissolve it in distilled water to obtain 1,000 mL of hard water.

[0355] C: 1.98% by mass of egg lecithin liquid crystal (11.37 g of arginine hydrochloride, 4.20 g of histidine, and 2.44 g of serine were dissolved in 80 mL of distilled water, the pH was adjusted to 5.0 with concentrated hydrochloric acid, and the solution was thoroughly mixed with egg lecithin using a mixer to obtain egg lecithin liquid crystal)

[0356] D: Kanuma red soil 8.11% by mass

[0357] E: Carbon black 0.025 mass%

[0358] 2. Production of artificially contaminated cloth with mud

[0359] A mud-stained cloth was prepared using a 10 cm×10 cm cotton knitted cloth (100% cotton, purchased from Yato Shoten) by the method described in paragraphs 0030 to 0038 of Japanese Patent Application Laid-Open No. 10-204769.

[0360] 3. Cleanliness evaluation

[0361] Each of the artificially soiled cloths, one artificially soiled with sebum stains and one artificially soiled with mud stains, was cleaned by the following method, and the cleaning properties were evaluated.

[0362] Four artificially soiled cloths were cleaned using a Terg-O-Tometer (MS-8212, manufactured by Ueshima Seisakusho Co., Ltd.) at 100 rpm for 10 minutes. The specific cleaning conditions were as follows: Four artificially soiled cloths and 0.30 g of each cleaning composition listed in Table 1 were placed in the Terg-O-Tometer. 600 mL of water was added to dissolve the cleaning composition in the water to prepare a cleaning solution. The artificially soiled cloths were cleaned at 100 rpm for 10 minutes. The water temperature of each cleaning solution was 20°C.

[0363] After cleaning, the soiled cloth was rinsed with tap water (20° C.) for 1 minute, then dehydrated for 3 minutes using a double-layer washing machine and then dried at 20° C. and 50% RH for 5 hours.

[0364] The cleaning rate (%) was calculated using the following formula (1), and the average value for four pieces was determined. Furthermore, the reflectance at a wavelength of 550 nm of the original artificially soiled cloth and the artificially soiled cloth before and after cleaning was measured using a spectrocolorimeter (SE2000, manufactured by Nippon Denshoku Co., Ltd.). The results are shown in Table 1. A higher cleaning rate indicates a higher cleaning power of the detergent composition.

[0365] Cleaning rate (%) = 100 × [(reflectivity of the artificially contaminated cloth after cleaning - reflectivity of the artificially contaminated cloth before cleaning) / (reflectivity of the original cloth - reflectivity of the artificially contaminated cloth before cleaning)] (1)

[0366] <Evaluation of rinsing properties>

[0367] 1. Evaluation of foam residue

[0368] 40g of the detergent composition of Table 1, trousers (manufactured by Uniqlo), sportswear (manufactured by Uniqlo), boxer briefs (manufactured by Uniqlo), socks (manufactured by Uniqlo), 3 sets of long-sleeved shirts (Heat Tech, manufactured by Uniqlo) and cotton T-shirts (manufactured by YG, GUNZE) were added to a drum washing machine (NA-VG1000L, manufactured by Panasonic) in a manner that the total weight became 7.5kg. The washing tank of the drum washing machine after the cleaning step was visually confirmed from the front of the drum washing machine, and the evaluation of the foam residue was performed according to the following evaluation index. The results are shown in Table 1. In the evaluation of the foam residue, the detergent composition evaluated as "0" is a cleaning composition with excellent rinsing properties.

[0369] Evaluation index of foam residue

[0370] 0: The remaining amount of foam is less than 1 / 4 of the sink.

[0371] 1: The remaining amount of foam should be at least 1 / 4 of the sink.

[0372] 2. Evaluation of turbidity

[0373] A portion of 5 L of rinse water, discharged after the first rinse step following the cleaning step in the drum-type washing machine, was stored in a basin (30 cm in diameter, 13.5 cm in height). A seal with black text in 18-point font was affixed to the bottom of the basin. While the rinse water was still in the basin, the text affixed to the bottom of the basin was visually inspected from a position 0.7 m directly above the surface of the rinse water. Five panelists evaluated the water based on the following indicators, and the total value of their evaluations was calculated. The results are shown in Table 1.

[0374] In the evaluation of turbidity, a detergent composition having a low total value of the evaluations of the panelists (particularly a detergent composition having a total value of "0") is a detergent composition having excellent rinsing properties.

[0375] Turbidity evaluation index

[0376] 0: Able to recognize text attached to the bottom of the sink.

[0377] 1: The text attached to the bottom of the sink cannot be recognized.

[0378] <Evaluation of antibacterial performance>

[0379] 1. Antibacterial test method

[0380] (1) Preparation of cloth used for antibacterial test

[0381] A Terg-O-Tometer was loaded with 30 g of cotton cloth (Cotton #2003, manufactured by Tanito Shoten) and 600 mL of a cleaning solution containing 0.3 g of each of the cleaning compositions listed in Table 1. The cloth was cleaned at 85 rpm for 10 minutes and rinsed for 3 minutes five times to obtain a test cloth. All water used was boiled and sterilized tap water.

[0382] (2) Antibacterial test

[0383] An antimicrobial test was conducted using Moraxella osloensis isolated from worn clothing in accordance with JIS L 1902. Specifically, the test was conducted as follows.

[0384] The test cloth prepared by the method (1) above was cut into 2 cm squares, and the obtained test pieces (each piece had a mass of about 0.4 g) were used as samples.

[0385] (i) Moraxella osloensis isolated from worn clothing was streaked onto a plate containing SCD-LP agar. After incubation at 37°C for 24 hours, the product was scraped with a platinum loop and placed in 10 mL of nutrient (NT) medium. The culture was pre-incubated at 37°C and 110 rpm for 24 hours. The concentration of the pre-incubated culture solution was estimated by absorptiometry, and the bacterial concentration was adjusted to approximately 1 × 10 8 Afterwards, the bacterial concentration was further diluted with 1 / 20 NT medium to adjust to 1×10 5 / mL to prepare the test bacterial solution.

[0386] (ii) Use a pipette to precisely collect 0.2 mL of the test bacterial solution. Apply the solution to multiple locations on each sample or untreated standard cloth (JIS L 1902 standard cloth). Place the solution in a small glass vial and incubate at 37°C for 18 hours with the lid closed. Repeat the inoculation and incubation of the test bacterial solution multiple times for each sample and standard cloth.

[0387] (iii) Randomly select five standard cloths after incubation and five standard cloths immediately after contact. Add 20 mL of LP diluent for rinsing, close the lid, and stir with a test stirrer for 30 seconds to rinse out the bacteria. Measure the bacterial count. Randomly select five specimens after incubation. Add 20 mL of LP diluent for rinsing to each specimen. Close the lid, stir with a test stirrer for 30 seconds to rinse out the bacteria. Measure the bacterial count.

[0388] The antibacterial activity value was calculated using the following formula. The results are shown in Table 1. A higher antibacterial activity value indicates higher antibacterial performance.

[0389] Antibacterial activity value = LogB-LogC

[0390] A: Average number of bacteria recovered from the standard cloth immediately after inoculation

[0391] B: Average number of bacteria recovered from standard cloth after 18 hours of incubation

[0392] C: Average number of bacteria recovered from samples after 18 hours of culture

[0393] Among them, the test establishment condition must be met, that is, LogB-LogA exceeds 1.5.

[0394] <Evaluation of residual dissolution>

[0395] The undissolved residue properties of each of the cleaning compositions of Examples and Comparative Examples in Table 1 were evaluated based on the presence or absence of traces remaining on the cleaned object and the diameter of the undissolved residue of the cleaning composition remaining after cleaning. The undissolved residue properties were evaluated using the following method.

[0396] 40g of each detergent composition in Table 1 was placed on a black cotton cloth cut into 15cm×15cm (black wide cotton cloth 40, purchased from Gutou Store) and wrapped in a manner that wrapped around the detergent composition. 7kg (about 70 pieces) of cotton T-shirts (YG, manufactured by GUNZE) were prepared. First, 4kg was placed in a fully automatic washing machine (NA-FR80H68 kg, manufactured by Panasonic), and the black cotton cloth containing the detergent composition was placed on it, and the remaining 3kg was placed in a manner that was placed on it. Using tap water (Wakayama tap water) with a temperature adjusted to 5°C, the automatic program (water volume 60L) was set, and the washing process began with 9 minutes of washing, 1 rinse, and 7 minutes of dehydration.

[0397] 1. Are there any traces left?

[0398] After washing, the black cotton cloth was visually inspected to check for any remaining marks. Five panelists evaluated the remaining marks on each piece of black cotton cloth based on the following criteria, and the total value of the panelists' evaluations was calculated. The results are shown in Table 1. Detergent compositions with a smaller total value for the five panelists' evaluations and fewer remaining marks exhibited excellent solubility and improved undissolved residue.

[0399] Evaluation index of whether there are traces left

[0400] 0: No trace remains at all.

[0401] 1: There are traces left.

[0402] 2. Evaluation of undissolved residues

[0403] Furthermore, undissolved residues of the detergent composition in the black cotton cloth were recovered, and the maximum diameter (mm) of the recovered residues was measured using a vernier caliper.

[0404] Next, the undissolved residue of the cleaning composition was evaluated based on the following indexes. The results are shown in Table 1. If the undissolved residue was evaluated as 0 or 1, it can be evaluated that the cleaning composition has sufficient solubility, and the undissolved residue is preferably evaluated as 0.

[0405] Evaluation index of undissolved residue

[0406] 0: No undissolved residue at all.

[0407] 1: Lumps of the cleaning composition of 1 mm or more and 5 mm or less were observed.

[0408] 2: Lumps of the cleaning agent composition of 5 mm or more were observed.

[0409]

[0410] [Reference example]

[0411] The following examples illustrate cleaning articles comprising the cleaning composition of the present invention and a water-soluble film encapsulating the cleaning composition. These cleaning articles exhibit a breaking strength of 300 N or greater in the following breaking strength measurement, and in the following cleaning performance evaluation, even when the cleaning composition is encapsulated in a water-soluble film, a decrease in cleaning power is suppressed.

[0412] <Cleaning Products Production>

[0413] In each reference example, two pieces of 76 μm water-soluble films (M8685, manufactured by Kuraray Co., Ltd.) cut into a predetermined rectangular size were overlapped, and a heat sealer (manufactured by Fuji Pulse Co., Ltd.) was used. The sealing condition of the heat sealer was set to 8, and the three sides of the water-soluble film were welded from the edge of each side by a width of 2 mm to make a bag with only one side open. In each reference example, 15 g of the detergent composition of Examples 1-4 of Table 1 was placed in the bag. Afterwards, one side of the opening of the bag was welded and closed by a heat sealer to obtain each cylindrical detergent article in which the detergent composition was enclosed in the water-soluble film. The maximum projected area of ​​each detergent article obtained was rectangular, and the major axis diameter of the maximum projected area and the aspect ratio of the major axis diameter to the minor axis diameter orthogonal to the major axis diameter (major axis diameter / minor axis diameter) were as shown in Table 2. In addition, the total area of ​​the water-soluble film in contact with the detergent composition was 48 cm 2In addition, in the measurement of the maximum projected area, the area of ​​the sealed portion, In addition, in the measurement of the maximum projected area, the area of ​​the sealed portion of the water-soluble film is included in the maximum projected area.

[0414] The total area of ​​the water-soluble film in contact with the detergent composition was calculated as follows: 2 times the product of the length remaining from the major axis diameter of the detergent article minus the sealing portion (4 mm) and the length remaining from the minor axis diameter of the detergent article minus the sealing portion (4 mm). For Reference Examples 1 to 5, this value was 30.4 cm, ... 2 、34.2cm 2 、35.6cm 2 、37.1cm 2 、38.6cm 2 .

[0415] <Determination of breaking strength>

[0416] The breaking strength of each cleaning article listed in Table 2 was measured. Using a compression tester (AUTOGRAPH AG-X, manufactured by Shimadzu Scientific Corporation), the test was conducted at room temperature (20°C) and a relative humidity of approximately 50%. Each cleaning article was placed with its surface with the largest projected area in contact with the fixed platen (not a spherical seat, but with an area larger than the maximum projected area of ​​each cleaning article) of the compression tester. A compressive force of 300 N was applied at a speed of 200 mm / min for evaluation. This test demonstrated that none of the reference examples broke under a compressive force of 300 N, indicating a breaking strength of 300 N or greater.

[0417] Cleaning performance evaluation

[0418] Preparation of sample sebum stains

[0419] A sample sebum stain having the following composition was prepared to be used for preparing an artificially stained cloth containing the sample sebum stain.

[0420] Composition of sample sebum stains:

[0421] 0.44% by mass of lauric acid, 3.15% by mass of myristic acid, 2.35% by mass of pentadecanoic acid, 6.31% by mass of palmitic acid, 0.44% by mass of heptadecanoic acid, 1.6% by mass of stearic acid, 7.91% by mass of oleic acid, 13.33% by mass of triolein, 2.22% by mass of n-hexadecyl palmitate, 6.66% by mass of squalene, and the remainder being water (total 100% by mass)

[0422] Production of artificially contaminated cloth

[0423] The artificially stained cloth used was prepared by applying the sample sebum stain of the above composition to a 6 cm×6 cm wide cotton / polyester blended cloth (cotton / polyester ratio = 35 / 65, purchased from Gutou Store) by gravure coating in an amount of 100 mg per piece.

[0424] Cleaning methods

[0425] Four artificially soiled cloths were sewn onto the chest of a cotton T-shirt (GUNZE Co., Ltd.). A vertical washing machine (Panasonic Co., Ltd., NA-F70PB1) was used. The detergents from the reference examples listed in Table 2 were placed at the bottom of the washing tub, followed by a cotton T-shirt (GUNZE Co., Ltd.) to a total weight of 2 kg.

[0426] In each reference example, water was added to the washing tank to achieve a concentration of 0.5 g / L of the detergent composition contained in the detergent article. Cleaning was performed for 9 minutes, followed by one wash cycle and a 7-minute spin cycle. The temperature of the water used for cleaning and washing was 20°C.

[0427] In addition, the cleaning compositions of Examples 1 to 4 in Table 1, which were not wrapped in a water-soluble film, were placed in the washing tank instead of the respective cleaning articles, and the same cleaning method as above was performed. This was used as a reference example.

[0428] Cleanliness evaluation

[0429] Four artificially soiled cloths sewn onto cotton T-shirts were removed, and the cleaning rates were measured using the following method. The average value of the four cloths was calculated.

[0430] The reflectance at 550 nm of the original cloth before contamination and the artificially contaminated cloth before and after cleaning was measured using a spectrocolorimeter (SE-2000 manufactured by Nippon Denshoku Co., Ltd.). The cleaning rate (%) was determined by the following formula and the average value of four pieces was calculated.

[0431] Cleaning rate (%) = 100 × [(reflectivity after cleaning - reflectivity before cleaning) / (reflectivity of original cloth - reflectivity before cleaning)]

[0432] The cleaning rate of each reference example was determined as follows: the cleaning rate of the reference example using a detergent composition not packaged with a water-soluble film was set to 100%, and the relative cleaning rate (%) relative to the reference example was calculated. Each detergent article in Table 2 was able to improve the relative cleaning rate, and even when the detergent composition was packaged with a water-soluble film, the decrease in cleaning power was suppressed.

[0433] [Table 2]

[0434]

Claims

1. A cleaning composition, wherein The present invention contains the following component (A) in an amount of 5% by mass to 40% by mass, the following component (B) in an amount of 20% by mass to 80% by mass, the following component (C) in an amount of 5% by mass to 40% by mass, the following component (D) in an amount of 0.1% by mass to 5.0% by mass, and the following component (E) in an amount of 0.1% by mass to 10% by mass, The mass ratio (a2) / [(a1)+(a2)] of the content of the component (a2) to the total content of the components (a1) and (a2) is 0 or more and 0.5 or less. The mass ratio (b2) / [(b1)+(b2)] of the content of the component (b2) to the total content of the components (b1) and (b2) is 0.2 or more and 0.8 or less. The mass ratio (C) / [(B)+(C)] of the content of the component (C) to the total content of the components (B) and (C) exceeds 0 and is 0.50 or less. (A) component: one or more selected from the following (a1) component and the following (a2) component, (a1) ingredient: nonionic surfactant, (a2) ingredient: anionic surfactant, (B) component: one or more selected from the following (b1) component and the following (b2) component, (b1) Component: a water-soluble inorganic salt having a pH of 9.0 or higher in a 0.1 g / L aqueous solution at 20°C. (b2) Ingredient: a water-soluble inorganic salt, the pH value of which in a 0.1 g / L aqueous solution at 20° C. is less than 9.0, (C) ingredient: water-insoluble inorganic component, (D) ingredient: cationic surfactant, Component (E): anionic polymer.

2. The cleaning composition according to claim 1, wherein The component (b1) is one or more alkaline agents selected from alkali metal carbonates.

3. The cleaning composition according to claim 1 or 2, wherein The component (b2) contains one or more water-soluble inorganic salts selected from inorganic sulfates and alkali metal hydrogen carbonates.

4. The cleaning composition according to any one of claims 1 to 3, wherein The component (D) is at least one selected from the group consisting of benzalkonium chloride and alkyltrimethylammonium chloride.

5. The cleaning composition according to any one of claims 1 to 4, wherein The detergent composition is a solid detergent composition.

6. The cleaning composition according to any one of claims 1 to 5, wherein The detergent composition is in the form of a tablet, powder or paste.

7. The cleaning composition according to any one of claims 1 to 6, wherein The detergent composition is used for fiber products.

8. A cleaning article, wherein The cleaning agent composition comprises: the cleaning agent composition according to any one of claims 1 to 6; and a water-soluble film for packaging the cleaning agent composition.

Images