Detergent article

Abstract

To provide a detergent article comprising an oxygen-containing detergent composition packaged in a water-soluble film, wherein the detergent article is capable of effectively cleaning complex stains containing proteins, such as collar and cuff stains, food stains, and cosmetic stains, even when used in short washing cycles (e.g., 3 to 10 minutes).SOLUTION: A detergent article comprises a detergent composition containing components (a) and (b), packaged in a water-soluble film. Components (a): enzyme and (b): a water-soluble aluminum salt.SELECTED DRAWING: None

Description

[Technical field]

[0001] The present invention relates to a detergent article comprising a detergent composition packaged in a water-soluble film. [Background technology]

[0002] In recent years, with an increasing preference for convenience among consumers, there has been a demand for cleaner articles that are easier to use. From the viewpoint of improving the usability of a cleaner composition, technologies for containers of the cleaner composition have been disclosed, and examples of such cleaner articles include a cleaner article in which the cleaner composition is packaged in a water-soluble film. Furthermore, in recent years, from the viewpoint of reducing chemicals and the environmental load, there has been a demand to reduce the amount of detergent compositions used, particularly the amount of surfactants.

[0003] Patent Document 1 discloses a water-soluble pouch containing a liquid composition, the water-soluble pouch being made from a film containing a copolymer of vinyl alcohol and carboxylic acid, the liquid composition contained in the pouch containing at least one dissolved ionic component selected from the group consisting of carboxylates, phosphonates, and mixtures thereof, the liquid composition containing 5% to 15% water by weight of the liquid composition, and the pouch being processed using a vacuum forming, horizontal, make-fill-seal process. Patent Document 2 discloses an automatic dishwashing composition for treating tableware in an automatic dishwashing machine having an electrochemical cell for improved cleaning, disinfecting, and / or stain removal of tableware, the composition being characterized by comprising: (a) a halide salt having the formula (M)x(XO2)y and / or (M)x(X)y, where X is Cl, Br, or I, and where M is a metal ion or a cationic substance, and where x and y are selected such that the charges of the salt are balanced; (b) a component selected from the group consisting of builders, chelating agents, suds suppressors, fragrances, enzymes, bleach scavengers, metal protectants, and mixtures thereof; and (c) an effective amount of an enzyme; and (d) an effective amount of a thickener; and (e) optionally, at least one auxiliary ingredient; wherein the composition does not contain a bleaching agent. Patent Document 3 discloses a granular detergent composition containing (A) particles having a bulk density of less than 600 g / L [hereinafter referred to as particles (A)] and (B) particles having a bulk density of 600 g / L or more [hereinafter referred to as particles (B)], in which a mixture obtained by mixing particles (A) in water at a concentration of 4 g / L at 25°C has a pH of 9.0 or more at 25°C, a mixture obtained by mixing particles (B) in water at a concentration of 4 g / L at 25°C has a pH of 5.0 or less at 25°C, and a mixture obtained by mixing the granular detergent composition in water at a concentration of 4 g / L at 25°C has a pH of 5.0 or more and 9.0 or less. [Prior art documents] [Patent documents]

[0004] [Patent Document 1] JP 2012-82014 A [Patent Document 2] Special Publication No. 2005-525457 [Patent Document 3] Patent Publication No. 2021-17590 Summary of the Invention [Problem to be solved by the invention]

[0005] The present inventors have discovered that when an enzyme-containing cleaning composition is packaged in a water-soluble film and used for short-term cleaning (e.g., 3 to 10 minutes) as a cleaning article, it takes a long time for the water-soluble film to dissolve, and therefore the enzymes are not able to sufficiently clean complex stains containing proteins, such as collar and sleeve stains, food stains, and cosmetic stains. The present invention provides a detergent article comprising an enzyme-containing detergent composition packaged in a water-soluble film, which has excellent cleaning properties against complex stains containing proteins, such as collar and sleeve stains, food stains, and cosmetic stains, even when used for cleaning for a short period of time (e.g., 3 to 10 minutes). [Means for solving the problem]

[0006] The present invention relates to a cleaning agent article comprising a cleaning agent composition containing the following components (a) and (b) packaged in a water-soluble film: (a) Ingredient: Enzyme (b) Ingredient: Water-soluble aluminum salt Effect of the Invention

[0007] According to the present invention, a detergent article is provided which is a detergent composition containing an enzyme packaged in a water-soluble film and has excellent cleaning properties against complex stains containing proteins, such as collar and sleeve stains, food stains, and cosmetic stains, even when used for cleaning for a short period of time (e.g., 3 to 10 minutes). DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0008] [Cleaning products] The reason why the cleaning article of the present invention has excellent cleaning properties against complex stains containing proteins, such as collar and sleeve stains, food stains, and cosmetic stains, even when used for short-term cleaning (e.g., 3 to 10 minutes), is not entirely clear, but is presumed to be as follows. When a cleaning composition containing an enzyme is used for a short time (e.g., 3 to 10 minutes) as a cleaning article packaged with a water-soluble film, the water-soluble film takes time to dissolve, so that the enzyme does not have sufficient cleaning power for complex soils containing proteins. This is expected to be because, in a cleaning solution in which the cleaning article is dissolved in water, water molecules that inhibit the enzyme reaction exist between the enzyme and the complex soil containing proteins, and therefore the enzyme reaction does not contribute sufficiently to cleaning power in a short time of cleaning. However, in the cleaning article of the present invention, the water-soluble aluminum salt, which is the component (b), can remove the inhibiting water that exists between the enzyme and the complex soil containing proteins by astringent action in a cleaning solution in which the cleaning article is dissolved in water, so that the reaction rate of the enzyme can be increased, and it is presumed that excellent cleaning power can be achieved even in a short time of cleaning. Furthermore, in the cleaning article of the present invention, the use of a specific monovalent inorganic salt, which is the component (c), can relax the secondary structure of the protein contained in the complex soil by a salt-solubilization effect, thereby improving the probability of the enzyme's action. In addition, it is presumed that a synergistic effect is obtained by combining component (b), which has the effect of increasing the enzyme reaction rate, with component (c), which has the effect of relaxing the secondary structure of proteins, thereby achieving even greater cleaning performance.

[0009] The cleaning article of the present invention comprises a cleaning composition containing components (a) and (b) (hereinafter referred to as the cleaning composition of the present invention) packaged in a water-soluble film.

[0010] <Cleaning agent composition> The detergent composition of the present invention may be a solid detergent composition or a liquid detergent composition, and from the viewpoints of making the pH of the cleaning liquid alkaline and of the stability of the enzyme, the solid detergent composition is preferred.

[0011] <Component (a)> The cleaning composition of the present invention contains an enzyme as component (a). As component (a), from the viewpoint of cleaning typical stains such as collar and sleeve stains and food stains, one or more enzymes selected from protease, lipase, and amylase are preferred, and protease, which is effective against stains containing protein, which is the main component of collar and sleeve stains, is more preferred.

[0012] From the viewpoint of a pH environment favorable for dispersing dirt, the optimum pH of the protease is preferably 4 or higher, more preferably 7 or higher, even more preferably 8 or higher, still more preferably 9 or higher, still more preferably 10 or higher, and preferably 12 or lower, more preferably 11 or lower. Suitable proteases for use in the present invention include serine proteases (EC 3.4.21) and metalloproteases (EC 3.4.17 or EC 3.4.24). Examples of suitable proteases include neutral or alkaline serine proteases such as subtilisin (EC 3.4.21.62). The origin of the protease is not limited, but may be of animal, vegetable or microbial origin, preferably of microbial origin such as bacteria or fungi. Further suitable proteases include chemically or genetically modified mutants of the suitable proteases mentioned above. In one aspect, the suitable protease may be an alkaline microbial protease or / and a serine protease such as a trypsin-type protease. Suitable commercially available proteases include the enzymes sold by Novozymes A / S as: Alcalase, Duralase, Durazyme, Relase, Relase Ultra, Savinase, Savinase Ultra, Savinase Evity, Primase, Polarzyme, Kannase, Liquanase, Liquanase Ultra, Liquanase Evity, Ovozyme, Coronase, Coronase Ultra, Coronase Evity, Neutrase, Everlase, ProgressUno, Progress Key, Progress Excel, Blaze, Blaze Evity, Blaze Exceed and Esperase; From Danisco / DuPont: Enzymes sold as Preferenz P, Effectenz P, Excellenz P, Maxatase, Maxacal, Maxapem, Purafect, Purafect Prime, Purafect MA, Purafect Ox, Purafect OxP, Puramax, Properase, Purafast, FN2, FN3, FN4, Excellase, Opticlean and Optimase; From Gist-Brocases NV: An enzyme sold as Axapem, From Henkel AG: BLAP (sequence shown in FIG. 29 of U.S. Pat. No. 5,352,604) and variants thereof (Henkel AG); From BASF: Enzymes sold as Lavergy Pro; Examples of suitable proteases include, but are not limited to, the alkaline protease described in Japanese Patent No. 3479509 and its variants.

[0013] From the viewpoint of a pH environment favorable for dispersing dirt, the optimum pH of lipase is preferably 4 or higher, more preferably 7 or higher, even more preferably 8 or higher, still more preferably 9 or higher, still more preferably 10 or higher, and preferably 12 or lower, more preferably 11 or lower. Examples of lipases suitable for use in the present invention include triacylglycerol lipase (EC 3.1.1.3), phospholipase A2 (EC 3.1.1.4), lysophospholipase (EC 3.1.1.5), monoglyceride lipase (EC 3.1.1.23), galactolipase (EC 3.1.1.26), phospholipase A1 (EC 3.1.1.32), and lipoprotein lipase (EC 3.1.1.34). The lipase and cutinase suitable for use in the present invention are those originating from microorganisms such as bacteria and fungi, such as those of the genera Bacillus, Thermomyces, Pseudomonas, Humicola, and Streptomyces, and may further be chemically or genetically modified mutants of these enzymes. Suitable commercially available lipases include those sold by Novozymes A / S under the names: Lipolase, Lipex, Lipex Evity, Lipolex, Lipoclean; From Danisco / DuPont: Enzymes sold as Preferenz L, Lumafast, and Lipomax; These include, but are not limited to, the following.

[0014] From the viewpoint of a pH environment favorable for dispersing dirt, the optimum pH of amylase is preferably 4 or higher, more preferably 7 or higher, even more preferably 8 or higher, even more preferably 9 or higher, even more preferably 10 or higher, and preferably 12 or lower, more preferably 11 or lower. Suitable amylases for use in the present invention include α-amylase (EC 3.2.1.1), β-amylase (EC 3.2.1.2) and / or glucoamylase (EC 3.2.1.3), etc. Suitable examples of amylases include neutral or alkaline α-amylases, preferably of microbial origin, such as bacteria or fungi. Neutral or alkaline amylases include, for example, those derived from Bacillus licheniformis, Bacillus amyloliquefaciens, Bacillus stearothermo, Bacillus subutilis, or other Bacillus species, as well as chemically or genetically modified mutants thereof. Suitable commercially available amylases include those sold by Novozymes A / S as: Duramyl, Termamyl, Termamyl Ultra, Fungamyl, Stainzyme, Stainzyme Plus, Amplify, Amplify Prime, Natalase, Supramyl, Liquozyme X and BAN; From Danisco / DuPont: Enzymes sold as Preferenz S, Effectenz S, Rapidase, Purastar, and Powerase; From Kao Corporation: Enzymes sold as KAM, These include, but are not limited to, the following.

[0015] <(b) Component> The cleaning composition of the present invention contains a water-soluble aluminum salt as component (b). (b) With respect to a component, “water-soluble” means that 1 g or more of the component dissolves in 100 g of water at 20°C.

[0016] The water-soluble aluminum salt may be one or more selected from potassium alum (potassium aluminum sulfate), ammonium alum (ammonium aluminum sulfate), sodium alum (sodium aluminum sulfate), aluminum sulfate, aluminum acetate, aluminum chloride, and aluminum nitrate. The water-soluble aluminum salt may be a hydrate. Examples of the hydrate of the water-soluble aluminum salt include one or more water-soluble aluminum salts selected from potassium aluminum sulfate dodecahydrate, sodium aluminum sulfate dodecahydrate, ammonium aluminum sulfate dodecahydrate, aluminum chloride hexahydrate, and aluminum sulfate 14-18 hydrate. In the present invention, component (b) may be any compound that can solve the problems of the present invention by dissolving in water and releasing aluminum ions into the cleaning solution, and the anion that serves as a counter salt for the aluminum ions in component (b) can be appropriately selected by those skilled in the art, so long as component (b) has the above-mentioned water-soluble properties.

[0017] As component (b), from the viewpoints of cleaning ability against complex soils containing protein and raw material stability, one or more water-soluble aluminum salts selected from aluminum sulfate, aluminum chloride, aluminum nitrate, and hydrates thereof are preferred, and one or more water-soluble aluminum salts selected from aluminum sulfate, aluminum chloride, and hydrates thereof are more preferred.

[0018] <Composition, etc.> The detergent composition of the present invention contains the component (a) in an amount of preferably 0.01% by mass or more, more preferably 0.1% by mass or more, and even more preferably 0.3% by mass or more, as enzyme protein in the detergent composition from the viewpoint of cleaning ability for complex soils containing protein, and from the viewpoint of safety, preferably 10% by mass or less, more preferably 5% by mass or less, and even more preferably 1% by mass or less.

[0019] The detergent composition of the present invention contains the component (b) in an amount of preferably 0.1% by mass or more, more preferably 1% by mass or more, and even more preferably 3% by mass or more in terms of enzyme activation, and preferably 50% by mass or less, more preferably 20% by mass or less, and even more preferably 10% by mass or less in terms of pH in the cleaning solution. In the present invention, the mass of the component (b) is defined as a value converted into an anhydrous form.

[0020] In the detergent composition of the present invention, the mass ratio (b) / (a) of the content of the enzyme protein of the component (a) to the content of the component (b) is, from the viewpoint of cleaning ability for complex stains containing protein, preferably 0.1 or more, more preferably 1 or more, even more preferably 3 or more, still more preferably 5 or more, still more preferably 6 or more, and preferably 200 or less, more preferably 150 or less, even more preferably 100 or less, still more preferably 50 or less, still more preferably 25 or less, and still more preferably 10 or less.

[0021] From the viewpoint of modifying proteins in complex soils, the detergent composition of the present invention may contain, as component (c), a neutral inorganic salt of an alkali metal having an ionic strength at 10 g / L of 0.05 or more and less than 0.5, provided that component (c) does not include those that fall under component (b) and component (e) described below. Regarding component (c), a "neutral inorganic salt" is one that exhibits a neutral pH of 6 to 8 in a 1% by mass aqueous solution. From the viewpoint of modifying proteins in complex soils, the detergent composition of the present invention preferably contains the component (c) rather than the component (e).

[0022] The ionic strength of component (c) at 10 g / L is, from the viewpoint of cleaning ability against complex soils including protein, 0.05 or more, preferably 0.1 or more, more preferably 0.15 or more, even more preferably 0.2 or more, and is less than 0.5, preferably 0.4 or less, more preferably 0.3 or less.

[0023] The component (c) may be one or more selected from sodium sulfate (0.21), sodium chloride (0.17), sodium nitrate (0.12), lithium sulfate (0.27), lithium chloride (0.24), lithium nitrate (0.15), potassium sulfate (0.17), potassium chloride (0.13), and potassium nitrate (0.10). The value in parentheses indicates the ionic strength at 10 g / L. From the viewpoints of modification of proteins in complex soils and raw material stability, component (c) is preferably a sodium salt or lithium salt, more preferably one or more selected from sodium sulfate, sodium chloride, sodium nitrate, lithium sulfate, and lithium chloride, and even more preferably one or more selected from sodium sulfate and lithium sulfate.

[0024] When the detergent composition of the present invention contains component (c), from the viewpoint of cleaning ability for complex soils containing protein, the detergent composition contains component (c) in an amount of preferably 0.1 mass% or more, more preferably 1 mass% or more, even more preferably 3 mass% or more, and preferably 92 mass% or less, more preferably 78 mass% or less, more preferably 50 mass% or less, even more preferably 26 mass% or less, still more preferably 20 mass% or less, still more preferably 15 mass% or less, and even more preferably 10 mass% or less.

[0025] When the detergent composition of the present invention contains component (c), the mass ratio (c) / (a) of the content of component (a) as an enzyme protein to the content of component (c) is, from the viewpoint of the cleaning ability for complex soils containing protein, preferably 0.1 or more, more preferably 1 or more, even more preferably 5 or more, still more preferably 6 or more, and preferably 3000 or less, more preferably 2500 or less, even more preferably 2000 or less, still more preferably 1500 or less, still more preferably 1000 or less, still more preferably 500 or less, still more preferably 100 or less, still more preferably 50 or less, still more preferably 25 or less, and still more preferably 10 or less.

[0026] From the viewpoint of cleaning ability against complex soils containing protein, the detergent composition of the present invention may contain a surfactant as component (d). The surfactant of component (d) may be one or more selected from (d1) a nonionic surfactant (hereinafter referred to as component (d1)), (d2) anionic surfactant (hereinafter referred to as component (d2)), (d3) cationic surfactant (hereinafter referred to as component (d3)), and (d4) amphoteric surfactant (hereinafter referred to as component (d4)). From the viewpoint of cleaning ability against complex soils containing protein, one or more selected from component (d1) and component (d2) are preferred.

[0027] As the nonionic surfactant of the component (d1), a nonionic surfactant (d11) containing an alkyleneoxy group and having an average added mole number of the alkyleneoxy group of 1 or more and 30 or less (hereinafter referred to as the component (d11)) is preferable. The alkyleneoxy group of the component (d11) is preferably one or more groups selected from alkyleneoxy groups having from 2 to 4 carbon atoms. The alkyleneoxy group having from 2 to 4 carbon atoms is preferably one or more groups selected from an ethyleneoxy group and a propyleneoxy group. The average number of moles of alkyleneoxy groups added in component (d11) is 1 or more, preferably 6 or more, more preferably 10 or more, and 30 or less, preferably 25 or less, more preferably 20 or less, from the viewpoint of cleaning ability against complex soils containing protein.

[0028] The component (d11) is preferably a nonionic surfactant represented by the following general formula (d11). R 11d (CO) m O-(A 11d O) n -R 12d (d11) [In the formula, R 11d is an aliphatic hydrocarbon group having 8 to 18 carbon atoms, R 12d is a hydrogen atom or a methyl group. CO is a carbonyl group, and m is the number 0 or 1. A 11d The O group is an alkyleneoxy group containing an ethyleneoxy group and having 2 to 4 carbon atoms. n is the average number of moles added and is a number of 1 to 30.

[0029] In general formula (d11), R 11d From the viewpoint of cleaning ability against complex soils containing proteins, the number of carbon atoms is 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. R 11d is an aliphatic hydrocarbon group, preferably a group selected from an alkyl group and an alkenyl group.

[0030] In general formula (d11), A 11d The O group is an alkyleneoxy group having 2 to 4 carbon atoms and containing an ethyleneoxy group, preferably an alkyleneoxy group having 2 to 3 carbon atoms and containing an ethyleneoxy group, and more preferably an ethyleneoxy group. 11dThe O group may be an alkyleneoxy group, including an ethyleneoxy group and another alkyleneoxy group, such as a propyleneoxy group. The other alkyleneoxy group is preferably a propyleneoxy group. 11d When the O group contains an ethyleneoxy group and a propyleneoxy group, the ethyleneoxy group and the propyleneoxy group may be bonded in a block type or a random type.

[0031] In the general formula (d11), n ​​is A 11d It is the average number of moles of O groups added, and is a number of 1 or more and 30 or less. In general formula (d11), n ​​is 1 or more, preferably 6 or more, more preferably 10 or more, and 30 or less, preferably 25 or less, more preferably 20 or less, from the viewpoint of the cleaning ability for complex soils containing protein.

[0032] Specific examples of nonionic surfactants having no alkyleneoxy group other than component (d11) include one or more selected from sucrose fatty acid esters, glycerin fatty acid esters, sorbitan fatty acid esters, alkyl glycosides, and glyceryl monoethers.

[0033] Examples of the anionic surfactant of component (d2) include alkylbenzene sulfonate, alkyl or alkenyl ether sulfate, alkyl or alkenyl sulfate, olefin sulfonate, alkane sulfonate, saturated or unsaturated fatty acid salt, alkyl or alkenyl ether carboxylate, α-sulfofatty acid salt, N-acylamino acid, mono- or di-phosphate, sulfosuccinate, etc. Examples of alkyl ether sulfate include polyoxyethylene alkyl ether sulfate. The alkyl or alkenyl group of the anionic surfactant has, for example, a carbon number of 8 or more and 22 or less. The average added mole number of oxyethylene groups of the anionic surfactant is, for example, 0 or more and 10 or less. Examples of counter ions of the anionic groups of these anionic surfactants include alkali metal ions such as sodium ion and potassium ion; alkaline earth metal ions such as calcium ion and magnesium ion; ammonium ion; and alkanolamines having 1 to 3 alkanol groups having 2 or 3 carbon atoms (for example, monoethanolamine, diethanolamine, triethanolamine, triisopropanolamine, etc.). These surfactants can be used alone or in combination of two or more kinds.

[0034] From the viewpoint of cleaning ability against complex soils containing protein, the component (d2) is preferably one or more selected from alkylbenzenesulfonic acid, alkyl sulfuric acid, polyoxyethylene alkyl ether sulfate, and salts thereof, and more preferably alkylbenzenesulfonic acid or a salt thereof. The number of carbon atoms in the alkyl group of these anionic surfactants is preferably 8 or more, more preferably 12 or more, and preferably 18 or less, more preferably 14 or less. The average number of moles of oxyethylene groups added in the polyoxyethylene alkyl ether sulfate is, for example, 0 or more and 10 or less.

[0035] Examples of the cationic surfactant of component (d3) include alkyltrimethylammonium salts in which the alkyl group has 8 to 22 carbon atoms, dialkyldimethylammonium salts in which the alkyl group has 8 to 22 carbon atoms, alkyldimethylbenzylammonium salts in which the alkyl group has 8 to 22 carbon atoms, and benzethonium salts. Examples of the salts include halogen salts and alkyl sulfates in which the carbon number is 1 to 3. These surfactants can be used alone or in combination of two or more kinds.

[0036] Examples of the amphoteric surfactant of the component (d4) 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. In these, the alkanoyl group is, for example, lauroyl or myristyl. In addition, in these, the alkyl group is, for example, a lauryl group or a myristyl group.

[0037] When the detergent composition of the present invention contains component (d), from the viewpoint of cleaning ability against complex soils containing protein, the detergent composition contains component (d) in an amount of preferably 0.1 mass % or more, more preferably 1 mass % or more, even more preferably 5 mass % or more, still more preferably 10 mass % or more, and preferably 50 mass % or less, more preferably 30 mass % or less, and even more preferably 20 mass % or less. In the cleaning composition of the present invention, when component (d2) is contained as component (d), the mass of component (d2) is defined as the value converted into the sodium salt. In addition, when the cleaning composition of the present invention contains component (d3) as component (d), the mass of component (d3) is specified using the value converted into chloride.

[0038] When the cleaning composition of the present invention contains component (d), the mass ratio (d) / (a) of the content of component (a) as an enzyme protein to the content of component (d) is, from the viewpoint of cleaning ability for complex stains containing protein, preferably 0.1 or more, more preferably 1 or more, even more preferably 10 or more, still more preferably 15 or more, and preferably 500 or less, more preferably 100 or less, even more preferably 50 or less, and still more preferably 35 or less.

[0039] From the viewpoint of cleaning ability for complex soils containing protein, the detergent composition of the present invention may contain an alkaline agent as component (e), which may be one or more alkaline agents selected from alkali metal carbonates, alkali metal hydrogen carbonates, alkali metal silicates, and tripolyphosphates.

[0040] Examples of the alkali metal carbonate include sodium carbonate and potassium carbonate, with sodium carbonate being preferred. Examples of the alkali metal hydrogen carbonate include sodium hydrogen carbonate and potassium hydrogen carbonate. The alkali metal silicate includes sodium silicate and potassium silicate. Tripolyphosphates include alkali metal salts of tripolyphosphate.

[0041] From the viewpoint of cleaning ability against complex soils containing protein, component (e) is preferably one or more alkaline agents selected from alkali metal carbonates and alkali metal bicarbonates, more preferably an alkali metal carbonate, even more preferably one or more agents selected from sodium carbonate and potassium carbonate, and even more preferably sodium carbonate.

[0042] When the detergent composition of the present invention contains component (e), from the viewpoint of cleaning ability against complex soils containing protein, the detergent composition contains component (e) in an amount of preferably 1 mass % or more, more preferably 10 mass % or more, even more preferably 30 mass % or more, still more preferably 40 mass % or more, still more preferably 50 mass % or more, and preferably 90 mass % or less, more preferably 80 mass % or less, and even more preferably 70 mass % or less.

[0043] When the cleaning composition of the present invention is a solid cleaning composition, the solid cleaning composition may be in the form of a powder, a granule, or a granule. From the viewpoint of solubility, the cleaning composition of the present invention is preferably one or more solid cleaning compositions selected from the group consisting of a powder, a granule, and a granule. The solid detergent composition can be produced by a known method, for example, a spray drying method, a dry neutralization method, a dry granulation method, a dry blending method, a fluidized bed drying method, a thin film drying method, an extrusion granulation method, a tumbling granulation method, agitation granulation method, a compaction granulation method, a surfactant supporting method, or a combination of methods selected from these. In the case of a powder detergent composition, the bulk density varies depending on the production method, but is preferably 0.2 g / cm 3 More preferably, 0.3 g / cm 3 More preferably, 0.35 g / cm 3 and preferably 1 g / cm 3 Less than or equal to 0.95 g / cm 3 Less than or equal to 0.9 g / cm 3 The following is the result. In the case of a powdered detergent composition, the average particle size is preferably 100 μm or more, more preferably 150 μm or more, even more preferably 200 μm or more, and preferably 800 μm or less, more preferably 750 μm or less, even more preferably 700 μm or less.

[0044] When the cleaning composition of the present invention is a liquid cleaning composition, it may contain water. The water may be deionized water (sometimes called ion-exchanged water) or water to which sodium hypochlorite has been added in an amount of 1 mg / kg or more and 5 mg / kg or less relative to ion-exchanged water. Tap water may also be used.

[0045] When the cleaning composition of the present invention contains water, the cleaning composition contains water in an amount of preferably 0.01 mass % or more, more preferably 0.1 mass % or more, even more preferably 1 mass % or more, and preferably 50 mass % or less, more preferably 30 mass % or less, even more preferably 10 mass % or less.

[0046] The cleaning agent composition of the present invention may contain, as other components, other components known in the field of laundry detergents, such as bleaching agents (perborates, bleach activators, etc.), anti-redeposition agents, reducing agents (sulfites, etc.), fluorescent brightening agents, foam suppressors (silicones, etc.), organic solvents, fragrances, colorants, antibacterial agents, etc. (however, excluding those corresponding to components (a) to (e)).

[0047] <Cleaning products> The cleaning article of the present invention comprises the cleaning composition of the present invention packaged in a water-soluble film. In the present invention, a water-soluble film refers to a film in which 500 g of 30°C ion-exchanged water is placed in a 1-liter glass beaker, a Teflon (registered trademark) stirrer with a diameter of 8 cm is placed in it, 1 g of the film to be evaluated is placed in the stirrer, and after stirring at 100 rpm for 30 minutes, no insoluble matter is apparent. In addition, from the viewpoint of preventing accidental ingestion and improving washability, the thickness of the water-soluble film is preferably 1 μm or more, more preferably 10 μm or more, even more preferably 50 μm or more, and preferably 200 μm or less, more preferably 150 μm or less, even more preferably 100 μm or less.

[0048] 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, blowing, extrusion, injection molding of polymers. Non-limiting examples of polymers for producing water-soluble films include polyvinyl alcohol (PVA), vinyl alcohol copolymers, polyvinylpyrrolidone, polyalkylene oxides, (modified) cellulose, (modified) cellulose-ethers or -esters or -amides, polycarboxylic acids such as polyacrylates and salts of maleic acid / acrylic acid copolymers, polyamino acids or peptides, polyamides such as polyacrylamides, polysaccharides such as starch and gelatin, natural gums such as xanthan and carragum. Vinyl alcohol copolymers are copolymers of vinyl alcohol with other monomers, such as ethylene, acrylic acid. Preferably, the water-soluble film comprises a polymer selected from the group consisting of polyacrylates and water-soluble acrylates, methylcellulose, sodium carboxymethylcellulose, dextrin, ethylcellulose, hydroxyethylcellulose, maltodextrin, polymethacrylates, polyvinyl alcohol, vinyl alcohol copolymers, hydroxypropylmethylcellulose (HPMC), and combinations thereof. More preferably, the water-soluble film comprises a polymer selected from polyvinyl alcohol, vinyl alcohol copolymers, and hydroxypropylmethylcellulose. Even more preferably, the water-soluble film comprises polyvinyl alcohol, such as Solvron available from Aicello Co., Ltd. Suitable polymers for producing water-soluble films of pouches are described, for example, in U.S. Pat. No. 6,995,126.

[0049] In the detergent article of the present invention, the total area of ​​the water-soluble film that comes into contact with the detergent composition of the present invention is preferably 2 cm2 or less from the viewpoint of further improving the product stability. 2 More than 5cm, preferably 5cm 2 More than 7cm, more preferably 2 More preferably, 15 cm 2 From the same viewpoint, preferably 100 cm2 Less than or equal to 70cm, preferably 2 Less than 60cm, more preferably 2 Less than 45cm, more preferably 45cm 2 The following is the result.

[0050] The cleaning article of the present invention can be made by any suitable process known in the art, such as the known detergent pouch making process. Examples of pouch making processes are described in U.S. Patent Nos. 6,995,126, 7,127,874, 8,156,713, 7,386,971, 7,439,215, U.S. Patent Application Publication No. 2009 / 199877, Japanese Patent No. 6915017, and Japanese Patent No. 4514858.

[0051] The cleaning article of the present invention has a content amount per piece of preferably 0.1 g or more, more preferably 0.2 g or more, more preferably 5 g or more, even more preferably 8 g or more, even more preferably 10 g or more, and preferably 50 g or less, more preferably 30 g or less, and even more preferably 25 g or less. The preferred shape and size per piece is, for example, a quadrilateral shape, with the length of one side being preferably 1 cm or more and 5 cm or less, and the thickness being preferably 1 cm or more and 5 cm or less, more preferably 1 cm or more and 4 cm or less. The mass per piece is preferably 0.1 g or more, more preferably 0.2 g or more, even more preferably 1 g or more, even more preferably 5 g or more, even more preferably 10 g or more, and preferably 50 g or less, more preferably 40 g or less, and even more preferably 30 g or less. Another preferred shape and size per piece is, for example, a rectangular parallelepiped shape, with a vertical length of preferably 2 cm to 20 cm, a horizontal length of preferably 1 cm to 4 cm, and a thickness of preferably 0.5 cm to 5 cm, more preferably 1 cm to 4 cm. The mass per piece is preferably 0.1 g or more, more preferably 0.2 g or more, even more preferably 1 g or more, still more preferably 5 g or more, still 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.

[0052] The detergent article of the present invention can be suitably used for textile products, for hard surfaces such as tableware, and for automatic dishwashers, and is preferably used for textile products.

[0053] When a textile product is cleaned with the cleaning agent article of the present invention, the fiber to be cleaned may be either hydrophobic or hydrophilic. Examples of hydrophobic fibers include protein fibers (milk protein casein fiber, promix, etc.), polyamide fibers (nylon, etc.), polyester fibers (polyester, etc.), polyacrylonitrile fibers (acrylic, etc.), polyvinyl alcohol fibers (vinylon, etc.), polyvinyl chloride fibers (polyvinyl chloride, etc.), polyvinylidene chloride fibers (vinylidene, etc.), polyolefin fibers (polyethylene, polypropylene, etc.), polyurethane fibers (polyurethane, etc.), polyvinyl chloride / polyvinyl alcohol copolymer fibers (polycral, etc.), polyalkylene paraoxybenzoate fibers (benzoate, etc.), polyfluoroethylene fibers (polytetrafluoroethylene, etc.), glass fibers, carbon fibers, alumina fibers, silicone carbide fibers, rock fibers (rock fibers), slag fibers (slag fibers), and metal fibers (gold thread, silver thread, steel fiber). Examples of hydrophilic fibers include seed hair fibers (cotton, cotton, kapok, etc.), bast fibers (hemp, flax, ramie, hemp, jute, etc.), leaf vein fibers (Manila hemp, sisal, etc.), palm fibers, rush, straw, animal hair fibers (wool, mohair, cashmere, camel hair, alpaca, vicuna, angora, etc.), silk fibers (domestic silk, wild silk), feathers, and cellulosic fibers (rayon, polynosic, cupra, acetate, etc.). From the viewpoint of finishing quality, the fiber is preferably a fiber containing cotton fiber. From the viewpoint of finishing quality of the fiber, the content of 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, still more preferably 20% by mass or more, still more preferably 40% by mass or more, still more preferably 60% by mass or more, still more preferably 80% by mass or more, and preferably 100% by mass or less, and may be 100% by mass.

[0054] In the present invention, the textile product refers to fabrics such as woven fabrics, knitted fabrics, and nonwoven fabrics using the hydrophobic fibers or hydrophilic fibers, and products obtained using the same, such as undershirts, T-shirts, dress shirts, blouses, slacks, hats, handkerchiefs, towels, knitwear, socks, underwear, and tights.

[0055] [How to wash textile products] The present invention provides a method for cleaning textile products, which comprises cleaning the textile products with a cleaning liquid (hereinafter referred to as the cleaning liquid of the present invention) comprising a mixture of the cleaning agent article of the present invention and water. The method for cleaning textile products of the present invention can be appropriately applied to the embodiments described for the detergent article of the present invention. In the method for washing textile products of the present invention, the cleaning agent article of the present invention and water may first be charged into a washing tank and mixed to prepare the cleaning solution of the present invention, and then the textile product to be washed is charged and the textile product is washed. However, from the viewpoint of enjoying the effects of the present invention, a method is preferred in which the cleaning agent article of the present invention, water, and the textile product are charged into a washing tank, and the cleaning solution of the present invention is prepared while the cleaning agent article of the present invention is dissolved in the water, and the textile product is washed at the same time.

[0056] In the cleaning solution of the present invention, the amount of water when mixing the detergent article of the present invention with water is prepared so that the total amount of the detergent composition of the present invention contained in the detergent article of the present invention is preferably 0.01 g or more, more preferably 0.1 g or more, even more preferably 0.3 g or more, and preferably 10 g or less, more preferably 1 g or less, and even more preferably 0.5 g or less, per 1 L of water, from the viewpoints of environmental consideration and cleaning ability for complex soils containing protein.

[0057] In the cleaning solution of the present invention, the hardness of the water to be mixed with the cleaning article of the present invention is, from the viewpoint of the stability of the surfactant and the enzyme, preferably 0.01°dH or more, more preferably 0.1°dH or more, even more preferably 1°dH or more, on the German hardness scale, and preferably 20°dH or less, more preferably 10°dH or less, even more preferably 5°dH or less. The cleaning liquid may have a hardness within the above range.

[0058] Here, German hardness (°dH) in this specification refers to the concentration of calcium and magnesium in water expressed as a CaCO3 equivalent concentration of 1 mg / L (ppm) = approximately 0.056°dH (1°dH = 17.8 ppm). The calcium and magnesium concentrations for the German hardness scale are determined by chelate titration using disodium salt of ethylenediaminetetraacetic acid. A specific method for measuring the German hardness of water in this specification is shown below. <Method of measuring water hardness in Germany> 〔reagent〕 0.01 mol / l EDTA·2Na solution: 0.01 mol / l aqueous solution of disodium ethylenediaminetetraacetate (titration solution, 0.01 M EDTA-Na2, manufactured by Sigma-Aldrich) ·Universal BT indicator (product name: Universal BT, manufactured by Dojindo Laboratories Co., Ltd.) Ammonia buffer solution for hardness measurement (67.5 g of ammonium chloride dissolved in 570 ml of 28 w / v% ammonia water, and then made up to 1000 ml with ion-exchanged water) [Measurement of hardness] (1) Using a volumetric pipette, place 20 ml of sample water into a conical beaker. (2) Add 2 ml of ammonia buffer solution for hardness measurement. (3) Add 0.5 ml of Universal BT indicator and confirm that the solution is reddish purple after addition. (4) While shaking the conical beaker well, add 0.01 mol / l EDTA·2Na solution from the burette, and the end point of the titration is when the sample water turns blue. (5) The total hardness is calculated using the following formula. Hardness (°dH)=T×0.01×F×56.0774×100 / A T:0.01mol / l Titration amount of EDTA・2Na solution (mL) A: Sample volume (20 mL, volume of sample water) F: Factor of 0.01mol / l EDTA·2Na solution

[0059] The hardness of the water used in the washing method, such as the water used to prepare the washing liquid and the water used for rinsing, can also be selected from the preferred range of the hardness of the water containing the hardness components described in the washing method for textile products of the present invention. The water hardness can be measured in the same manner as the water hardness described above.

[0060] From the viewpoints of cleaning ability for complex soils containing protein and safety, the cleaning solution of the present invention contains component (a) in an amount, as an enzyme protein, of preferably 0.001 ppm or more, more preferably 0.01 ppm or more, even more preferably 0.1 ppm or more in the cleaning solution, and preferably 100 ppm or less, more preferably 50 ppm or less, even more preferably 10 ppm or less.

[0061] The cleaning solution of the present invention contains component (b) in an amount of preferably 0.1 ppm or more, more preferably 1 ppm or more, and even more preferably 10 ppm or more in terms of enzyme activation, and in an amount of preferably 300 ppm or less, more preferably 200 ppm or less, even more preferably 100 ppm or less, and even more preferably 50 ppm or less in terms of the pH of the cleaning solution.

[0062] When the cleaning solution of the present invention contains component (c), from the viewpoint of modifying proteins contained in complex soils, the cleaning solution contains component (c) at a concentration of preferably 0.1 ppm or more, more preferably 1 ppm or more, even more preferably 10 ppm or more, and preferably 100,000 ppm or less, more preferably 10,000 ppm or less, even more preferably 5,000 ppm or less, even more preferably 1,000 ppm or less, even more preferably 100 ppm or less, and even more preferably 50 ppm or less.

[0063] When the cleaning liquid of the present invention contains the component (d), the component (d) is preferably contained in the cleaning liquid at 0.1 ppm or more, more preferably 1 ppm or more, still more preferably 10 ppm or more, and preferably 1000 ppm or less, more preferably 500 ppm or less, still more preferably 100 ppm or less, even more preferably 70 ppm or less, from the viewpoints of the detergency of composite stains containing proteins and environmental consideration.

[0064] When the cleaning liquid of the present invention contains the component (e), the component (e) is preferably contained in the cleaning liquid at 1 ppm or more, more preferably 10 ppm or more, still more preferably 50 ppm or more, even more preferably 100 ppm or more, and preferably 10000 ppm or less, more preferably 1000 ppm or less, still more preferably 500 ppm or less, even more preferably 300 ppm or less, from the viewpoints of the detergency of composite stains containing proteins and safety.

[0065] In the cleaning liquid of the present invention, the mass ratio (b) / (a) of the content of the component (a) as an enzyme protein to the content of the component (b), the mass ratio (c) / (a) of the content of the component (a) as an enzyme protein to the content of the component (c), and the mass ratio (d) / (a) of the content of the component (a) as an enzyme protein to the content of the component (d) are each preferably within the same range as described in the detergent composition of the present invention.

[0066] The temperature of the cleaning liquid of the present invention is preferably 10°C or more, more preferably 20°C or more, still more preferably 30°C or more, and preferably 100°C or less, more preferably 80°C or less, still more preferably 60°C or less, from the viewpoint of the optimum temperature of the enzyme.

[0067] The pH of the cleaning liquid of the present invention at 25°C is 8.0 or more, preferably 9.0 or more, more preferably 10.0 or more, and 13.0 or less, preferably 12.0 or less, more preferably 11.0 or less, from the viewpoints of the optimum pH of the enzyme and safety. The pH is measured according to the pH measurement method described below. <pH Measurement Method> A composite electrode for pH measurement (glass-ground sleeve type, manufactured by HORIBA) is connected to a pH meter (pH / ion meter F-23, manufactured by HORIBA) and the power is turned on. A saturated potassium chloride aqueous solution (3.33 mol / L) is used as the internal solution of the pH electrode. Next, a 100 mL beaker is filled with 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), and the beaker is immersed in a thermostatic bath at 25°C for 30 minutes. The pH measurement electrode is immersed in the thermostatically adjusted standard solution for 3 minutes, and the calibration operation is performed in the order of pH 9.18 → pH 4.01 → pH 6.86. The sample to be measured is adjusted to 25°C, the electrode of the pH meter is immersed in the sample, and the pH is measured after 1 minute.

[0068] In recent years, washing machines have become larger, and the value of the liquor ratio, which is the ratio of the mass of the textile product (kg) to the amount of water in the cleaning solution (liters), i.e., the amount of water in the cleaning solution (liters) / mass of the textile product (kg) (hereinafter, this ratio may be referred to as the liquor ratio), tends to decrease. When a household washing machine is used, if the liquor ratio is small, the textile products may be rubbed against each other by agitation during washing, which may impair the finish of the textile product. From the viewpoint of cleaning ability for complex soils containing protein, the liquor ratio is preferably 5 or more, more preferably 10 or more, and even more preferably 20 or more, and from the viewpoint of washing efficiency, it is preferably 100 or less, more preferably 50 or less, and even more preferably 30 or less.

[0069] In the method for cleaning textile products of the present invention, the cleaning time is preferably 1 minute or more, more preferably 3 minutes or more, and even more preferably 5 minutes or more, from the viewpoint of enzyme action time, and is preferably 1 hour or less, more preferably 45 minutes or less, even more preferably 30 minutes or less, and even more preferably 10 minutes or less, from the viewpoint of reducing the workload.

[0070] The method for washing textile products of the present invention is suitable for a method of immersing textile products in a liquid used for scouring while feeding the textile products with rollers or the like, and a rotary washing method. The rotary washing method means a washing method in which a textile product not fixed to a rotating device rotates around a rotating shaft together with the washing liquid. The rotary washing method can be carried out by a rotary washing machine. Therefore, in the present invention, it is preferable to wash textile products using a rotary washing machine in order to finish the textile products more neatly. Specific examples of the rotary washing machine include drum washing machines, pulsator washing machines, and agitator washing machines. These rotary washing machines can be commercially available for home use. EXAMPLES

[0071] <Composition ingredients> In the examples and comparative examples, the following components were used. [Component (a)] Protease: Progress Key 150T, Novozymes, 10% active [(b) component] Al sulfate: Aluminum sulfate 14-18 hydrate, Fujifilm Wako Pure Chemical Industries, Ltd. Al chloride: Aluminum chloride, manufactured by Fujifilm Wako Pure Chemical Industries, Ltd. [(c) component] Sodium sulfate: Sodium sulfate, ionic strength 0.21 at 10 g / L, Fujifilm Wako Pure Chemical Industries, Ltd. Sodium chloride: Sodium chloride, ionic strength 0.17 at 10 g / L, manufactured by Fujifilm Wako Pure Chemical Industries, Ltd. Sodium nitrate: Sodium nitrate, ionic strength 0.12 at 10 g / L, Fujifilm Wako Pure Chemical Industries, Ltd. Lithium sulfate: Lithium sulfate, ionic strength 0.27 at 10 g / L, Fujifilm Wako Pure Chemical Industries, Ltd. Sulfate K: Potassium sulfate, ionic strength 0.17 at 10 g / L, Fujifilm Wako Pure Chemical Industries, Ltd. [(d) component] Polyoxyethylene alkyl ether: (d1) ingredient, Emulgen 110L, manufactured by Kao Corporation LAS: Sodium laurylbenzenesulfonate, (d2) ingredient, Neopelex G-65, manufactured by Kao Corporation AS: sodium lauryl sulfate, (d2) ingredient, Emal 10G, manufactured by Kao Corporation AES: Sodium polyoxyethylene lauryl ether sulfate, (d2) component, Emal 270J, manufactured by Kao Corporation [(e) component] Sodium carbonate: Sodium carbonate, manufactured by Fujifilm Wako Pure Chemical Industries, Ltd.

[0072] <Preparation of cleaning composition> The cleaning compositions shown in Tables 1 and 2 were prepared using the above blended components by the following method. When component (d) was a nonionic surfactant (polyoxyethylene alkyl ether), component (d) was mixed with component (e) and adsorbed, and then components (a), (b), and (c) were added and stirred to prepare various powdered solid cleaning compositions. When component (d) was an anionic surfactant (LAS, AS, AES), a 65% aqueous solution of component (d) was prepared, mixed with component (e), dried and adsorbed, and further components (a), (b), and (c) were added and stirred to prepare various powdered solid cleaning compositions.

[0073] <Preparation of cleaning agent article> Two sheets of water-soluble film (3 cm wide, 1 cm long, M8685, manufactured by Monosol Corp.) having a thickness as shown in Table 1 were stacked and sealed at three sides using a heat sealer (manufactured by Fuji Impulse Corp.) to produce a bag with only one side open, and 0.3 g of each of the detergent compositions as shown in Tables 1 and 2 was placed in this bag. The open side of the bag was then sealed closed by heat sealing to obtain a detergent article in which each detergent composition was packaged in a water-soluble film. The total area of ​​the water-soluble film in contact with the detergent composition was 3 cm 2 The cleaning article of the present invention is not limited to the above-mentioned production method.

[0074] [Evaluation of cleaning ability for protein stains on collar and sleeves] 1. Preparation of artificially soiled cloth The artificially stained cloth for the collar and sleeve protein model stain was C-10 stained cloth (6 cm x 6 cm, Center For Testmaterials BV, CFT). The composition of the collar / sleeve protein model stain contained in the artificially soiled cloth is as follows: Composition of collar sleeve protein model stain: peanut oil, pigment, high concentration milk

[0075] 2. Cleaning evaluation Four pieces of artificially soiled cloth with the collar and sleeve protein model stain prepared above were washed in a tergotometer (Ueshima MS-8212) at 100 rpm for 10 minutes. The specific washing conditions were as follows: four pieces of artificially soiled cloth and each detergent article listed in Tables 1 and 2 were placed in the tergotometer, and water (the water was adjusted to a ratio of Ca / Mg=6 / 4 (mass ratio) using ion-exchanged water, calcium chloride, and magnesium chloride, with a German hardness of 2°dH, and the water temperature was adjusted to 30°C) was poured in so that the concentration of each component in the washing solution was the value in Tables 1 and 2. The detergent article was dissolved in the water to prepare the washing solution, and at the same time, the artificially soiled cloth was washed at 100 rpm for 10 minutes. The water temperature of each washing solution was 30°C, the pH was 10.5, and the alkalinity was 37. After washing, the cloth was rinsed with city water (25°C) for 1 minute. The rinsed soiled cloth was then dehydrated for 3 minutes using a two-layer washing machine, and then left to dry for 3 hours at 20°C and 50% RH. Cleanability was evaluated based on the cleaning rate. The cleaning rate (%) was measured using the method described below, and the average value of 4 cloths was calculated. The reflectance at a wavelength of 460 nm of the original artificially soiled cloth and the artificially soiled cloth before and after washing was measured using a colorimeter (SE2000, manufactured by Nippon Denshoku Co., Ltd.). The results are shown in Tables 1 and 2. Cleaning rate (%) = 100 × [(reflectance of artificially soiled cloth after cleaning - reflectance of artificially soiled cloth before cleaning) / (reflectance of original cloth - reflectance of artificially soiled cloth before cleaning)]

[0076] [Table 1]

[0077] [Table 2]

[0078] In Tables 1 and 2, the value in parentheses for the content of component (a) is the content of component (a) as an enzyme protein, and the content of component (b) is the value converted to anhydrous form. In addition, the mass ratio (b) / (a) in Tables 1 and 2 is the mass ratio between the content of component (a) as an enzyme protein and the content of component (b), and the mass ratio (c) / (a) is the mass ratio between the content of component (a) as an enzyme protein and the content of component (c).

Claims

1. A detergent article comprising a detergent composition containing the following components (a) and (b) packaged in a water-soluble film: (a) Component: Enzyme Component (b): Water-soluble aluminum salt

2. 2. The detergent article according to claim 1, wherein in the detergent composition, the mass ratio (b) / (a) of the content of the enzyme protein of the component (a) to the content of the component (b) is 0.01 or more and 200 or less.

3. The detergent article according to claim 1 or 2, wherein the detergent composition further contains the following component (c): Component (c): A neutral inorganic salt of an alkali metal having an ionic strength of 0.05 or more and less than 0.5 at 10 g / L (excluding those corresponding to component (b)).

4. 4. The cleaning article of claim 3, wherein component (c) is a sodium salt or a lithium salt.

5. 4. The detergent article according to claim 3, wherein in the detergent composition, the mass ratio (c) / (a) of the content of the enzyme protein of the component (a) to the content of the component (c) is 0.1 or more and 3,000 or less.

6. The detergent article according to claim 1 or 2, wherein the detergent composition further contains the following component (d): Component (d): surfactant

7. The cleaning article according to claim 1 or 2, wherein the component (a) is a protease.

8. The detergent article according to claim 1 or 2, wherein the detergent composition is a solid detergent composition.

9. The detergent article according to claim 1 or 2, wherein the water-soluble film has a thickness of 1 μm or more and 200 μm or less.

10. The cleaning article according to claim 1 or 2, which is for textile products.