Coating composition having cleaning function and method for producing same

Abstract

It can be applied to a wide range of materials and is hypoallergenic. [Solution] The cleaning and coating composition contains water as the main component, silicone oil, an emulsifier that emulsifies the water and silicone oil, and a quaternary ammonium salt as a cationic surfactant.

Description

[Technical Field]

[0001] Used for cleaning and coating residential floors, kitchens, sinks, washrooms, baths, toilets, walls, window glass, screen doors, mirrors, furniture, toys, etc. Has cleaning function A coating composition and its manufacturing method, which is particularly applicable to a wide range of materials and is hypoallergenic Has cleaning function The present invention relates to a coating composition and a method for producing the same. [Background technology]

[0002] Various types of household detergents are used to clean floors, kitchens, sinks, washrooms, bathtubs, toilets, walls, windows, screen doors, mirrors, furniture, toys, and more. Traditionally, these detergents have been formulated specifically for specific cleaning areas and specific stains, depending on the material and stains being cleaned. This requires the use of many different types of detergents, which requires time and effort to purchase and select them, as well as storage and space. Furthermore, while traditional detergents are effective at removing stains, they do not prevent stains from adhering. New stains quickly form in the living spaces of an average household, so they do not reduce the frequency of cleaning or the effort required. To prevent stains, a separate coating agent must be applied after cleaning with the detergent, which requires time and effort for cleaning. Furthermore, because the coating agent is specialized for specific areas and uses, similar to the detergent itself, it requires time and effort to select, purchase, and use the appropriate detergent, as well as storage and space.

[0003] Here, Patent Document 1 proposes a cleaning composition that is capable of removing dirt and disinfecting an object to be cleaned, and also of imparting water repellency to the object to be cleaned. The cleaning composition contains a surfactant, an alcohol, and a fluorine compound, in which the alcohol is a monohydric lower alcohol and the fluorine compound is a perfluoroalkyl compound. [Prior art documents] [Patent documents]

[0004] [Patent Document 1] Japanese Patent Application Publication No. 2023-109572 Summary of the Invention [Problem to be solved by the invention]

[0005] However, the detergent composition of Patent Document 1 contains alcohol, making it unsuitable for cleaning waxed floors (wooden floors), plastic products, leather products, etc., and may also cause skin irritation or roughness in people with sensitive skin.

[0006] Therefore, the present invention is applicable to a wide range of materials and is hypoallergenic. Has cleaning function The present invention addresses the problem of providing a coating composition and a method for producing the same. [Means for solving the problem]

[0007] The invention of claim 1 Has cleaning function The coating composition contains water as a main component, silicone oil, an emulsifier that emulsifies the water and the silicone oil, and a quaternary ammonium salt as a cationic surfactant.

[0008] The silicone oil is preferably a non-volatile silicone oil, more preferably a straight silicone oil, and even more preferably a dimethylsilicone oil or methylphenylsilicone oil having a methyl group in the organic group on the side chain. The emulsifier is water-soluble and has a surface tension lower than that of silicone oil, and is preferably a non-volatile modified silicone oil. The cationic surfactants are those which become ions when dissolved in water and are dissociated to form positive ions (cations) on the hydrophilic group side, and are also called cationic surfactants. Examples of the quaternary ammonium salt as the cationic surfactant include monoalkyl types, monoalkyl ether types, dialkyl types, dialkyl ester types, and benzalkonium types.

[0009] Claim 1 of the invention Has cleaning function The emulsifier in the coating composition is a polyether-modified silicone oil having an HLB of 3-15.

[0010] The invention of claim 2 Has cleaning function The silicone oil in the coating composition is a non-volatile dimethyl silicone oil or methylphenyl silicone oil. The dimethyl silicone oil is a straight silicone oil of a linear polymer consisting of siloxane bonds, and all of the side chains and terminals of the polysiloxane are methyl groups. The methylphenyl silicone oil is a straight silicone oil of a linear polymer consisting of siloxane bonds, in which part of the side chain of the polysiloxane is a phenyl group.

[0011] The invention of claim 3 Has cleaning function The silicone oil of the coating composition is Has cleaning function The content is preferably 0.1% by mass or more and 10.0% by mass or less, more preferably 0.1% by mass or more and 5.0% by mass or less, even more preferably 0.2% by mass or more and 2.0% by mass or less, and particularly preferably 0.5% by mass or more and 1.0% by mass or less, relative to 100% by mass of the total amount of the coating composition.

[0012] Claim 4 of the invention Has cleaning function The emulsifier of the coating composition preferably has a kinematic viscosity at 25°C of 100 to 3000 mm 2 / s, more preferably 150 to 2500 mm 2 / s, more preferably 200 to 2000 mm 2 / s range.

[0013] Claim 5 of the invention Has cleaning function The emulsifier in the coating composition is preferably blended in an amount of 250 parts by mass or more and 800 parts by mass or less, more preferably 300 parts by mass or more and 700 parts by mass or less, and even more preferably 400 parts by mass or more and 600 parts by mass or less, relative to 100 parts by mass of the silicone oil.

[0014] Claim 6 of the invention Has cleaning function The coating composition further contains a silicone antifoaming agent. The silicone antifoaming agent is preferably an emulsion type.

[0015] Claim 7 of the invention Has cleaning function The silicone antifoaming agent of the coating composition is Has cleaning function The content is preferably in the range of 0.05% by mass or more and 0.25% by mass or less, more preferably 0.06% by mass or more and 0.20% by mass or less, and even more preferably 0.07% by mass or more and 0.15% by mass or less, relative to 100% by mass of the total amount of the coating composition.

[0016] Claim 8 of the invention Has cleaning function The coating composition further contains a silver complex (complex ion). The silver complex is a silver compound having a silver ion and a ligand therefor. Examples of the ligand include ammonia, thiourea, and phosphines such as triphenylphosphine. A silver ammine complex in which the ligand is ammonia is preferred.

[0017] Claim 9 of the invention Has cleaning function The method for producing the coating composition involves mixing silicone oil and an emulsifier with an aqueous silver complex solution, and then adding a quaternary ammonium salt as a cationic surfactant, water, and a silicone antifoaming agent. [Effects of the Invention]

[0018] The invention of claim 1 Has cleaning function This coating composition contains water as its main ingredient, silicone oil, an emulsifier that emulsifies the silicone oil and water, and a quaternary ammonium salt as a cationic surfactant. The quaternary ammonium salt as a cationic surfactant provides a cleaning effect by removing dirt from the surface to be cleaned. Furthermore, the silicone oil emulsified in water by the emulsifier and the positive ion coating film formed by bonding the positive ions of the quaternary ammonium salt with the hydroxyl groups of the water molecules provide water-repellent and anti-fouling effects. In other words, the coating provides water-repellent and anti-fouling effects in addition to the cleaning effect. Furthermore, the combination of silicone oil, water, emulsifier, and cationic surfactant provides water-repellent and anti-fouling properties through the silicone oil and positive ion coating film, making it suitable for use on a wide range of materials. It is also alcohol-free, making it hypoallergenic.

[0019] Claim 1 of the invention Has cleaning function According to the coating composition, the emulsifier is a polyether-modified silicone oil having an HLB of 3 to 15. , emulsification You can increase your strength.

[0020] The invention of claim 2 Has cleaning function According to the coating composition, the silicone oil is a non-volatile dimethyl silicone oil or methylphenyl silicone oil, so in addition to the effect described in claim 1, it is possible to improve water repellency and stain resistance, and also to increase the durability of the coating.

[0021] The invention of claim 3 Has cleaning function According to the coating composition, the silicone oil is Has cleaning functionThe content is preferably in the range of 0.1 mass % or more and 10.0 mass % or less, more preferably 0.1 mass % or more and 5.0 mass % or less, even more preferably 0.2 mass % or more and 2.0 mass % or less, and particularly preferably 0.5 mass % or more and 1.0 mass % or less, relative to the total amount (100 mass %) of the coating composition. Therefore, in addition to the effect described in claim 1, stickiness due to coating is suppressed and storage stability can also be improved.

[0022] Claim 4 of the invention Has cleaning function According to the coating composition, the emulsifier preferably has a kinematic viscosity at 25°C of 100 to 3000 mm 2 / s, more preferably 150 to 2500 mm 2 / s, more preferably 200 to 2000 mm 2 / s, in addition to the effect described in claim 1, the emulsifying power can be increased.

[0023] Claim 5 of the invention Has cleaning function According to the coating composition, the emulsifier is preferably contained in an amount of 250 parts by mass or more and 800 parts by mass or less, more preferably 300 parts by mass or more and 700 parts by mass or less, and even more preferably 400 parts by mass or more and 600 parts by mass or less, relative to 100 parts by mass of the silicone oil. Therefore, in addition to the effect described in claim 1, the composition can be applied and coated evenly, the water repellency and stain resistance can be improved, and further, storage stability can be improved.

[0024] Claim 6 of the invention Has cleaning function According to the coating composition, since it further contains a silicone antifoaming agent, in addition to the effect of claim 1, wiping streaks are less likely to occur and the finish can be improved.

[0025] Claim 7 of the invention Has cleaning function According to the coating composition, The silicone antifoaming agent has the cleaning function.The content is preferably in the range of 0.05% by mass or more and 0.25% by mass or less, more preferably 0.06% by mass or more and 0.20% by mass or less, and even more preferably 0.07% by mass or more and 0.15% by mass or less, relative to 100% by mass of the total amount of the coating composition. 6 In addition to the effects described above, it is possible to ensure a finish that is less likely to produce streaks when wiping without reducing the cleaning effect or water repellency / stain resistance.

[0026] Claim 8 of the invention Has cleaning function According to the coating composition, since it further contains a silver complex, in addition to the effect described in claim 1, an antibacterial effect due to silver ions can be imparted.

[0027] Claim 9 of the invention Has cleaning function According to the method for producing the coating composition, silicone oil and an emulsifier are mixed with an aqueous silver complex solution, and then a quaternary ammonium salt as a cationic surfactant, water, and a silicone antifoaming agent are added. Has cleaning function This coating composition contains water, silicone oil, an emulsifier, a quaternary ammonium salt as a cationic surfactant, a silicone antifoaming agent, and a silver complex. The quaternary ammonium salt as a cationic surfactant provides a cleaning effect by removing dirt from the surface to be cleaned. Furthermore, the silicone oil emulsified in water by the emulsifier and the positive ion coating film formed by bonding the positive ions of the quaternary ammonium salt with the hydroxyl groups of the water molecules provide water-repellent and stain-resistant effects. In other words, the coating provides water-repellent and stain-resistant effects in addition to the cleaning effect. Furthermore, the combination of silicone oil, water, an emulsifier, and a cationic surfactant provides water-repellent and stain-resistant properties through the silicone oil and positive ion coating film, making it suitable for a wide range of materials. It is alcohol-free and therefore hypoallergenic. Furthermore, the silicone antifoaming agent reduces wiping streaks and improves the finish. Additionally, the silver complex provides antibacterial effects through the silver ions. DETAILED DESCRIPTION OF THE INVENTION

[0028] [Embodiment Mode] The following describes embodiments of the present invention. Has cleaning function The coating composition will be described. The embodiment of the present invention Has cleaning function The coating composition contains water as a main component, silicone oil, an emulsifier that emulsifies the silicone oil and water, a quaternary ammonium salt as a cationic surfactant, a silicone antifoaming agent, and a silver complex.

[0029] Silicone oils include straight silicone oils such as dimethyl silicone oil, methylphenyl silicone oil, and methylhydrogen silicone oil, as well as modified silicone oils with organic groups introduced into the side chains or terminals. They are usually water-insoluble. Modified silicone oils include reactive silicone oils (amine-modified, epoxy-modified, carboxy-modified, carbinol-modified, methacryl-modified, mercapto-modified, phenol-modified) and non-reactive silicone oils (polyether-modified, methylstyryl-modified, alkyl-modified, higher fatty acid ester-modified, special hydrophilic modified, higher fatty acid-containing, fluorine-modified).

[0030] Preferred are water-insoluble, nonvolatile dimethyl silicone oil, methylphenyl silicone oil, or alkyl-modified silicone oils added to cosmetics. Dimethylpolysiloxane (dimethicone) is preferred as a nonvolatile dimethyl silicone oil, methylphenylpolysiloxane (diphenylsiloxyphenyltrimethicone) is preferred as a nonvolatile methylphenyl silicone oil, and caprylyl methicone is preferred as a nonvolatile alkyl-modified silicone oil. Among these, nonvolatile dimethyl silicone oil or methylphenylsilicone oil is more preferred because of its low surface tension, which enhances water repellency. Furthermore, its nonvolatility enhances the durability of coatings that impart water repellency and stain resistance. Methylphenylpolysiloxane, a methylphenyl silicone oil, is particularly suitable because it is colorless, transparent, odorless, nonvolatile, repels water well, is non-sticky, has low viscosity, and spreads easily, allowing for light wiping, providing excellent operability (e.g., workability and slipperiness), and provides a glossy finish. Examples of such silicone oils include commercially available silicone oils KF-56A, KF-96A-1cs, KF-96L-1.5cs, KF-96L-2cs, KF-96A-5cs, KF-96A-6cs, KF-96A-10cs, KF-96A-20cs, KF-96A-30cs, KF-96A-50cs, and KF-96A-100 manufactured by Shin-Etsu Chemical Co., Ltd. cs, KF-96A-200cs, KF-96A-300cs, KF-96A-350cs, KF-96A-500cs, KF-96-1000cs, KF-96-3000cs, KF-96A-5000cs, KF-96H-6000cs, KF-4418, KF-50-1000cs, KF-53, KF-54, KF-54HV, etc. can be used.

[0031] The kinetic viscosity of the silicone oil at 25°C is 0.5 to 6000 mm 2 / s, and more preferably, 1 to 5000 mm 2 / s, more preferably 2 to 30 mm 2If the viscosity is within this range, the low viscosity makes it easy to apply, and the good spreadability allows it to be wiped with light force, resulting in good operability (workability, slipperiness).

[0032] The silicone oil is preferably blended in an amount of 0.1% by mass or more and 10.0% by mass or less, more preferably 0.1% by mass or more and 5.0% by mass or less, even more preferably 0.2% by mass or more and 2.0% by mass or less, and particularly preferably 0.5% by mass or more and 1.0% by mass or less, relative to 100% by mass of the total amount of the composition. If the amount of silicone oil blended is too high, stickiness occurs and storage stability decreases, while if the amount of silicone oil blended is too low, water repellency and stain resistance decrease.Within the above range, water repellency and stain resistance are ensured, the wiping surface does not become sticky, a good finish can be achieved, and storage stability can also be improved. By including this silicone oil, the cleaning surface can be coated with silicone oil, and the silicone oil film (silicone film) can provide water-repellent and stain-resistant effects.

[0033] The emulsifier is preferably a silicone emulsifier, more preferably a water-soluble, non-volatile polyether-modified silicone oil (polyether-modified silicone surfactant), and particularly preferably a linear polyether-modified silicone surfactant, of which polyether-modified organopolysiloxane (labeled name for cosmetics: PEG / PPG-20 / 22 butyl ether dimethicone, (old) cosmetic type approved name: poly(oxyethylene-oxypropylene) methylpolysiloxane copolymer) is preferred.

[0034] The emulsifier is water-soluble and has an HLB (according to the Griffin method) preferably in the range of 3 to 15, more preferably in the range of 5 to 9. If the HLB is within this range, the emulsifying power (emulsifying ability, dispersibility) of the silicone oil in water can be increased, storage stability can be improved, and the properties of the silicone oil coating film can be stabilized.

[0035] In particular, if the emulsifier is a polyether-modified silicone oil with an HLB of 3 to 15, the cleaning effect on oily stains can be enhanced. Furthermore, the emulsifying power can be increased, and the emulsified state can be further stabilized, thereby improving storage stability. Furthermore, the dispersibility of the silver complex can be improved, which also improves antibacterial properties.

[0036] The emulsifier has a kinematic viscosity of 100 to 3000 mm at 25°C. 2 / s, and more preferably 150 to 2500 mm 2 / s, more preferably 200 to 2000 mm 2 / s. If the viscosity is within this range, mixing workability can be improved. Furthermore, since the viscosity is large, the emulsifying power is high and storage stability can be improved, and it is also possible to improve the dispersibility of the silver complex. Examples of such emulsifiers that can be used include commercially available emulsifiers KF-6043, KF-6011, KF-6011P, KF-6012, KF-6015, KF-6017, KF-6017P, KF-6028, KF-6038, KF-6043, and KF-6048 manufactured by Shin-Etsu Chemical Co., Ltd.

[0037] The emulsifier is preferably contained in an amount of 250 parts by mass or more and 800 parts by mass or less, more preferably 300 parts by mass or more and 700 parts by mass or less, even more preferably 400 parts by mass or more and 600 parts by mass or less, relative to 100 parts by mass of the silicone oil.The emulsifier is preferably contained in an amount of 0.1% by mass or more and 30.0% by mass or less, more preferably 0.1% by mass or more and 10.0% by mass or less, even more preferably 0.1% by mass or more and 5.0% by mass or less, particularly preferably 2.0% by mass or more and 5.0% by mass or less, relative to 100% by mass of the total amount of the composition. If the amount of emulsifier is too high, the water repellency and stain resistance will decrease, and if the amount is too low, the emulsification will be insufficient, causing uneven application and coating and reducing storage stability.Within the above range, even application and coating can be achieved, and water repellency and stain resistance can be improved, as well as storage stability can be improved. By including these emulsifiers, the silicone oil mixes with water, even though the main ingredient is water, allowing the cleaning surface to be evenly coated with a film of silicone oil, providing water-repellent and stain-resistant effects.

[0038] Quaternary ammonium salts as cationic surfactants are relatively highly water-soluble, and examples thereof include benzalkonium chloride, benzethonium chloride, dialkyldimethylammonium chloride, cetylpyridinium chloride, lauryltrimethylammonium chloride, lauryltrimethylammonium bromide, myristyltrimethylammonium chloride, myristyltrimethylammonium bromide, cetyltrimethylammonium chloride, cetyltrimethylammonium bromide, stearyltrimethylammonium chloride, stearyltrimethylammonium bromide, dioctyldimethylammonium chloride, didecyldimethylammonium chloride, dilauryldimethylammonium chloride, dimyristyldimethylammonium chloride, dicetyldimethylammonium chloride, distearyldimethylammonium chloride, etc. These may be used alone or in combination of two or more.

[0039] Among these cationic surfactants, cationic organic silane quaternary ammonium compounds represented by the following formula (1) are preferred.

[0040] [ka] In formula (1), R1 = hydrogen and / or C1-C4 alkyl, R2 = divalent hydrocarbon radical of C1 to C8 carbon atoms, R3 = hydrogen or C1 to C4 alkyl, R4 = hydrogen or C1 to C10 alkyl, R5 = C10 to C22 saturated or unsaturated hydrocarbon radical, and X = halide (preferably chloride or bromide), carboxylate (acetate, glycolate), sulfonate, hydroxide, sulfate, or phosphate.

[0041] Examples of such cationic organosilane quaternary ammonium compounds that can be used include 3-(trimethoxysilyl)propyldimethyloctadecylammonium chloride, 3-(trimethoxysilyl)propyltetradecyldimethylammonium chloride, 3-(trimethoxysilyl)propyldimethylsoyaammonium chloride, 3-(trimethoxysilyl)propyldimethyloleylammonium chloride, 3-(trimethoxysilyl)propyloctadecylammonium chloride, 3-(trimethoxysilyl)propyloleylammonium chloride, and 3-(trihydroxysilyl)propyldimethyloctadecylammonium chloride. These cationic organosilane quaternary ammonium compounds have a high bactericidal effect.

[0042] The quaternary ammonium salt as a cationic surfactant is contained in the composition (based on 100% by mass of the total amount of the composition) preferably in an amount of 0.01% by mass or more and 5.0% by mass or less, more preferably 0.05% by mass or more and 3.0% by mass or less, and even more preferably 0.05% by mass or more and 2.5% by mass or less. If the amount of quaternary ammonium salt is too high, foaming will occur, whereas if the amount of quaternary ammonium salt is too low, the cleaning effect will be reduced.Within the above range, effective cleaning effect can be obtained and foaming can be suppressed. The inclusion of quaternary ammonium salts as cationic surfactants makes it possible to dissolve and remove dirt from the cleaning surface in water. Furthermore, the positive ion film formed by the bond between the positive ions of the quaternary ammonium salts and the hydroxyl groups of water molecules creates water-repellent and stain-resistant properties. Furthermore, the positive ions of the quaternary ammonium salts also have antibacterial, disinfectant, antifungal, and deodorizing effects.

[0043] Silicone defoaming agents include oil-type defoaming agents, compound-type defoaming agents, self-emulsifying defoaming agents, emulsion-type defoaming agents, powder-type defoaming agents, and solid-type defoaming agents. Among these, emulsion-type silicone defoaming agents are particularly preferred from the viewpoint of achieving good dispersibility in water. Emulsion-type silicone antifoaming agents are silicone oil compounds emulsified with a nonionic surfactant, and examples of commercially available products that can be used include KM-70, KM-72, KM-72F, KM-72S, KM-72FS, KM-72GS, KM-73, KM-73A, KM-73E, KM-75, and KM-7751 from Shin-Etsu Chemical Co., Ltd., and FS Antifoam 93 (Dow Toray Industries, Inc.).

[0044] The silicone-based antifoaming agent is contained in an amount of preferably 0.05% by mass or more and 0.25% by mass or less, more preferably 0.06% by mass or more and 0.20% by mass or less, and even more preferably 0.07% by mass or more and 0.15% by mass or less, relative to 100% by mass of the total amount of the composition. If the amount of antifoaming agent is too high, the cleaning effect and water repellency / fouling resistance will decrease, while if the amount of antifoaming agent is too low, the foam suppression will be insufficient and wiping streaks will be more likely to occur.Within the above range, the cleaning effect will be maintained while wiping streaks will be less likely to occur, improving the finish. The inclusion of such a silicone-based antifoaming agent can suppress the generation of foam, making it difficult for wiping streaks to occur and improving the finish.

[0045] Examples of the silver complexes include silver ammine complexes, histidine silver complexes, methionine silver complexes, arginine silver complexes, creatinine silver complexes, pyruvate silver complexes, glycolate silver complexes, acetate silver complexes, butyrate silver complexes, salicylate silver complexes, cysteine ​​silver complexes, aspartate silver complexes, pyrrolidone carboxylic acid silver complexes, oxotetrahydrofuran carboxylic acid silver complexes, imidazole silver complexes, thiosulfite silver complexes, silver sodium chloride complexes, cyanide silver complexes, diamine silver complexes, thiosulfate silver complexes, tetrakis(pyridine)silver(II) peroxodisulfate, silver chloro complex salts, silver amino acid complexes, and silver phytic acid complexes. Among these, silver ammine complexes are preferred. Silver ammine complexes can improve dispersibility and achieve antibacterial effects with the addition of small amounts. Silver ammine complexes are added in the form of a silver ammine complex solution, for example, by adding ammonia water or an ammonia salt to a solution containing water and silver nitrate, silver chloride, silver oxide, or the like. The inclusion of such a silver complex provides antibacterial properties due to the silver ions.

[0046] The water used may be purified water such as distilled water or deionized water. The content of water in the composition (based on 100% by mass of the total amount of the composition) is preferably 50% by mass or more, more preferably 60 to 98% by mass, even more preferably 70 to 95% by mass, and particularly preferably 80 to 95% by mass. In this embodiment, Has cleaning function The coating composition is liquid at room temperature (5 to 35°C). When carrying out the present invention, other additives such as fragrances, pH adjusters, preservatives, etc. may be appropriately contained within the scope that does not impair the effects of the present invention.

[0047] Here, according to this embodiment Has cleaning function The coating composition is produced, for example, by first mixing a silicone oil and an emulsifier with an aqueous solution of the silver complex, and then adding a quaternary ammonium salt as a cationic surfactant and a silicone antifoaming agent to the mixture. This emulsifies the water and silicone oil and suppresses foaming, allowing the silver ions to exist in the composition in the form of a silver complex, resulting in the dispersibility and stability of the silver complex and enabling the antibacterial effect of the silver ions in the silver complex to be exerted.

[0048] This is how it was produced Has cleaning function The coating composition is applied (including sprayed) to the cleaning surface (surface to be cleaned, surface to be wiped) using a spray (spray) container such as an atomizer type, trigger type, or aerosol type, and then wiped up with a nonwoven fabric (wiper), paper towel, tissue, or the like, or Has cleaning function By soaking a dust cloth, nonwoven fabric (wiper), paper towel, tissue, etc. in the coating composition and wiping the surface to be cleaned with it, it is possible to remove dirt (dust, dust, sebum, food, water stains, oil, etc.) from the surface to be cleaned and at the same time coat the surface to be cleaned.

[0049] That is, for the cleaning surface, Has cleaning function By simply applying the coating composition, for example, by spraying it on and wiping it off with a dustcloth, nonwoven fabric (wiper), tissue, or the like, the quaternary ammonium salt as a cationic surfactant removes dirt. At the same time, when wiping off the water, a film of positive ions or silicone oil is formed due to the bond between the positive ions of the quaternary ammonium salt and the hydroxyl groups of water molecules. These coating films impart water-repellent and stain-resistant properties. Therefore, a second wipe to remove the detergent is not necessary. Not only can dirt be removed from the surface, but the surface can also be coated with a film of positive ions or silicone oil due to the bond between the positive ions of the quaternary ammonium salt and the hydroxyl groups of water molecules. These coating films repel newly adhering dirt (mainly water-based dirt) and water, or reduce the adhesive strength of dirt (mainly oily dirt), making it difficult for new dirt to adhere. They also inhibit the growth of slime and mold. Furthermore, any dirt that adheres can be easily removed. In addition, the surface can be given a glossy finish. Therefore, by removing dirt and coating at the same time, it is possible to reduce the effort and time required for cleaning, and by making it difficult for dirt to adhere, it is possible to reduce the number and frequency of cleaning, and by combining the cleaning agent and coating agent into one product, it can take up less space for storage, making it a highly convenient product.In addition, by reducing the number and frequency of cleaning, it is possible to suppress wear caused by frequent cleaning, which leads to longer life for the materials of the cleaning parts.

[0050] That is, in this embodiment Has cleaning functionWhen the coating composition is applied to a surface to be cleaned, the cationic surfactant quaternary ammonium salt modifies the surface of dirt adhering to the surface, dissolving the dirt in water. The dirt can then be removed by wiping with a dust cloth, nonwoven fabric (wiper), tissue, or other similar device. Furthermore, a positive ion film is formed on the surface to be cleaned, resulting from the bonding between the positive ions of the quaternary ammonium salt and the hydroxyl groups of water molecules, and a coating film (silicone film) is formed from silicone oil emulsified in water by the emulsifier. These coating films impart water-repellent, stain-resistant properties, and gloss and shine to the surface. In other words, the coating film provides water-repellent and stain-resistant properties while simultaneously providing a cleaning effect that removes dirt. Furthermore, the silicone antifoaming agent suppresses foam generation, reducing the occurrence of streaks when wiping with a dust cloth, nonwoven fabric (wiper), tissue, or other similar device, resulting in a better finish. Additionally, the silver ions contained in the silver complex form an antibacterial coating film, imparting antibacterial properties through the silver ions of the silver complex. In particular, the hydrophilic groups of the emulsifier can disperse and stabilize the silver complex, which results in a long-lasting antibacterial effect of the silver ions. The combination of silicone oil, water, emulsifier, and cationic surfactant forms a silicone oil and positive ion coating film that provides water repellency and stain resistance, making it suitable for a wide range of materials, and since it contains no alcohol, it is hypoallergenic. This means it can be used to clean and coat plastics (resins), ceramics, metals, glass, marble, magnetic tiles, wood, leather, and more.

[0051] By emulsifying the silicone oil and water with an emulsifier and lowering the surface tension, it wets the surface well and spreads easily, allowing for an even application to the surface. When the water is wiped away, a positive ion film is formed by the bond between the positive ions of the quaternary ammonium salt and the hydroxyl groups of the water molecules, and a coating film (silicone film) of silicone oil emulsified in the water by the emulsifier provides water repellency, stain resistance, and a glossy finish. Furthermore, since there is little change in viscosity with temperature, storage stability is also excellent. In particular, if the silicone oil is a non-volatile dimethyl silicone oil or methylphenyl silicone oil, the organic group on the silicone side chain is a methyl group, which appears on the surface and lowers the surface free energy, thereby enhancing water repellency and stain resistance.In addition, because it is non-volatile, it can increase the durability of the coating that imparts water repellency and stain resistance.

[0052] Furthermore, if the emulsifier is a polyether-modified silicone oil with an HLB of 3 to 15, the cleaning effect on oily stains can be enhanced. Furthermore, the emulsifying power can be increased, and the emulsified state can be further stabilized, thereby improving storage stability. In particular, the dispersibility and stability of the silver complex can be improved, enabling improved antibacterial properties.

[0053] And, in this embodiment Has cleaning function The coating composition, which combines silicone oil, water, an emulsifier, and a cationic surfactant, coats the surface to be cleaned (the surface to be cleaned or wiped) to impart water-repellent and stain-resistant properties, making it suitable for use on a wide range of materials, including floors (flooring), kitchens, sinks, stoves, washbasins, entryways (e.g., shoe cabinets, shoes), windowpanes, faucets, bathtubs, toilets, walls, windowpanes, ventilation fans, screen doors, sash windows, curtain rails, mirrors, carpets, curtains, walls, furniture (e.g., sofas), bedding, electrical appliances (e.g., microwaves, refrigerators), toys, shelves, trash cans, smartphone and computer screens, and more. It can be used in a variety of locations, including bathrooms, toilets, bathtubs, floors, furniture (e.g., tables, chairs, and sofas), electrical appliances (e.g., televisions, induction cooktops, refrigerators, and microwaves), and entryways made of marble. It does not contain alcohol and the silicone oil is chemically inert, so there is no risk of it corroding the materials of the cleaning surfaces. In addition, it contains silicone oil and is alcohol-free, making it gentle and hypoallergenic to the skin.Furthermore, it does not contain any volatile organic compounds (VOCs), making it environmentally friendly.

[0054] Here, in this embodiment Has cleaning function The coating composition will be described with reference to examples. In this Example 1 and 2 Has cleaning function The coating composition contains methylphenylpolysiloxane (KF-56A, manufactured by Shin-Etsu Chemical Co., Ltd.), a non-volatile methylphenylsilicone oil, as the silicone oil; polyether-modified organopolysiloxane (KF-6012, HLB: 7.0, manufactured by Shin-Etsu Chemical Co., Ltd.), a polyether-modified silicone oil, as an emulsifier that emulsifies the silicone oil and water; 3-(trimethoxysilyl)propyldimethyloctadecylammonium chloride, a quaternary ammonium salt, as the cationic surfactant; an emulsion-type silicone antifoaming agent (KM-73, manufactured by Shin-Etsu Chemical Co., Ltd.); a silver ammine complex as the silver complex (complex ion); and water.

[0055] In Examples 1 and 2, first, a silver complex solution containing a silver complex in water, a non-volatile methylphenyl silicone oil (methylphenyl polysiloxane) as a silicone oil, and a polyether-modified silicone oil (polyether-modified organopolysiloxane) as an emulsifier are mixed, and then a quaternary ammonium salt solution obtained by mixing 3-(trimethoxysilyl)propyldimethyloctadecylammonium chloride, which is a quaternary ammonium salt as a cationic surfactant, with water is mixed with the mixed solution, and then an emulsion-type silicone antifoaming agent is mixed with the mixed solution. Has cleaning function A coating composition was prepared.

[0056] For comparison, compositions of Comparative Examples 1 to 4 were also prepared. Comparative Example 1 contains the same ingredients as in the above Examples, except that silicone oil and emulsifier are not included. Comparative Examples 2 and 3 contain the same ingredients as in the above Examples, except that silicone oil is not included. Comparative Examples 4 and 5 contain the same ingredients as in the above Examples, except that emulsifier is not included. The blending compositions of the present example and comparative example are shown in the upper part of Table 1. The numerical values ​​in the same column in Table 1 indicate the magnitude of the quantity, and the unit is parts by mass, and there is basically no difference in the materials.

[0057] [Table 1]

[0058] The compositions of each Example and Comparative Example were subjected to evaluation and measurement tests for coating uniformity when applied to a surface to be coated and wiped, water repellency, stain resistance, and storage stability. To evaluate the coating uniformity, a solution of the composition according to each example and comparative example (approximately 0.05 ml) was dropped onto the preparation, and the preparation was wiped with a Kimwipe 20 times to form a coating film, and the state of the coating was evaluated visually. A coating film formed evenly on the surface to be coated (coated surface) without any unevenness and with no uncoated areas was rated as ⊚; a coating film with some unevenness and uncoated areas that were not noticeable was rated as ◯; and a coating film with noticeable unevenness in the uncoated areas was rated as ×.

[0059] The water repellency measurement test was carried out by measuring the contact angle of a drop of liquid. A coating film of the composition according to each Example and Comparative Example was formed on a preparation in the same manner as in the evaluation test of coating uniformity. The contact angle (°) of the water droplet when distilled water (drop amount: 2 μl) was dropped onto the coating film was measured using a contact angle meter (NICK LSE-B100W). The larger the contact angle (°), the higher the water repellency.

[0060] In the test for evaluating the antifouling properties, a coating film of the composition according to each Example and Comparative Example was formed on a preparation in the same manner as in the test for evaluating the uniformity of the coating, and then a model aqueous stain (a blue-colored aqueous solution) was dropped onto the film, and the state of adhesion of the stain was evaluated visually. When the stain was repelled and almost no stain adhered, it was evaluated as ◯, and when the stain adhered noticeably, it was evaluated as ×.

[0061] In the storage stability evaluation test, a solution of the composition according to each Example and Comparative Example was placed in a glass container, and the state of the solution after storage at room temperature for 14 days was confirmed. Those that showed no separation or discoloration were rated as ◯, and those that showed separation, precipitation, or discoloration were rated as ×. The results of these evaluation and measurement tests are shown in the bottom row of Table 1.

[0062] As shown in Table 1, in Examples 1 and 2, the coating was uniform and without unevenness, the contact angle (°) was large, the water repellency was high, the antifouling properties were good, and the storage stability was also good.

[0063] On the other hand, in Comparative Example 1, since silicone oil (methylphenyl silicone oil) and emulsifier (polyether-modified silicone oil) were not blended, the contact angle was small and the water repellency and antifouling properties were poor. In Comparative Examples 2 and 3, the absence of silicone oil (methylphenyl silicone oil) resulted in a small contact angle and poor water repellency and antifouling properties. In particular, in Comparative Examples 2 and 3, the addition of an emulsifier resulted in a smaller contact angle than in Comparative Example 1, and furthermore, in Comparative Example 3, which contained a large amount of emulsifier, unevenness in the coating also occurred. In Comparative Examples 4 and 5, since no emulsifier was added, the silicone oil (methylphenyl silicone oil (methylphenyl polysiloxane)) did not emulsify and separated from the water, resulting in uneven coating and poor storage stability.

[0064] In this embodiment Has cleaning functionThis coating composition contains water as its main ingredient, a nonvolatile methylphenyl silicone oil (methylphenyl polysiloxane) as the silicone oil, a polyether-modified silicone oil (polyether-modified organopolysiloxane) as an emulsifier for emulsifying the silicone oil and water, 3-(trimethoxysilyl)propyldimethyloctadecylammonium chloride as a quaternary ammonium salt as a cationic surfactant, an emulsion-type silicone antifoaming agent, and a silver ammine complex as a silver complex (complex ion). When applied to a surface to be cleaned, the quaternary ammonium salt 3-(trimethoxysilyl)propyldimethyloctadecylammonium chloride as the cationic surfactant modifies the surface of contaminants adhering to the surface to be cleaned, dissolving the contaminants in water, allowing them to be removed by wiping them off. Furthermore, the positive ions of the methylphenyl silicone oil and the quaternary ammonium salt bond with the hydroxyl groups of water molecules to form a coating film of positive ions, imparting water repellency and stain resistance. In this case, the methylphenyl silicone oil and water are emulsified by the polyether-modified silicone oil used as an emulsifier, allowing for an even coating on the surface to be cleaned. Furthermore, this coating film is an antibacterial coating film because it contains silver ions from a silver ammine complex as a silver complex (complex ion), and the silver ions provide antibacterial effects. Furthermore, the silicone antifoaming agent suppresses foam generation, making it less likely to leave streaks when wiping the surface to be cleaned, resulting in a better finish. While the product contains silicone oil, it does not contain alcohol, making it hypoallergenic and gentle on the skin. Furthermore, it does not contain any volatile organic compounds (VOCs), making it environmentally friendly.

[0065] In this way, the combination of silicone oil, water, emulsifier, and cationic surfactant provides a coating film of silicone oil and positive ions that provides water repellency and stain resistance, making it applicable to a wide range of materials. Therefore, this Has cleaning functionThe coating composition alone removes dirt from the surface to be cleaned (surface to be washed), imparts water repellency and stain resistance, and also imparts antibacterial properties, thereby enabling a reduction in cleaning time, frequency, and effort.

[0066] In particular, according to the inventors' experimental research, when a silver aqueous solution containing a silver ammine complex is mixed with a nonvolatile methylphenyl silicone oil (methylphenyl polysiloxane) as a silicone oil, a polyether-modified silicone oil (polyether-modified organopolysiloxane) as an emulsifier, and an emulsion-type silicone antifoaming agent, and then this mixed solution is mixed with 3-(trimethoxysilyl)propyldimethyloctadecylammonium chloride, a quaternary ammonium salt, as a cationic surfactant, and water, discoloration occurs. This is presumably because the silver ammine complex is unable to form a stable state (bond, affinity) with the hydrophilic group of the polyether in the polyether-modified silicone oil, which is the emulsifier, and therefore exists as metallic silver. That is, if a silicone antifoaming agent is added before adding a surfactant, it is presumed that the silicone antifoaming agent will form a film that incorporates the silicone oil and emulsifier, or will cause aggregates of the silicone oil and emulsifier to stick together, thereby inhibiting the bonding (affinity) between the silver ammine complex and the hydrophilic group of the emulsifier.

[0067] In contrast, a silver aqueous solution containing a silver ammine complex was mixed with a nonvolatile methylphenyl silicone oil (methylphenyl polysiloxane) as a silicone oil and a polyether-modified silicone oil (polyether-modified organopolysiloxane) as an emulsifier, and then the mixed solution was mixed with 3-(trimethoxysilyl)propyldimethyloctadecylammonium chloride, a quaternary ammonium salt, as a cationic surfactant, water, and an emulsion-type silicone antifoaming agent to create a silicone antifoaming agent. Has cleaning functionNo discoloration occurred in the coating composition. Therefore, it is presumed that the silver ammine complex is dispersed by forming a relatively stable state (bond) with the hydrophilic group of the polyether in the polyether-modified silicone oil as an emulsifier. In other words, it is presumed that if the silicone antifoaming agent is added simultaneously with or after the addition of the surfactant, the bond (affinity) between the silver ammine complex and the hydrophilic group of the emulsifier is not inhibited. It is also presumed that the silicone antifoaming agent forms a film incorporating the silicone oil, emulsifier, silver amine complex, and surfactant, making it difficult for bubbles to form. In this way, the silver ammine complex is dispersed by forming a relatively stable state (bond) with the hydrophilic group of the polyether in the polyether-modified silicone oil as an emulsifier, and a high antibacterial effect can be obtained even at low concentrations. In particular, the emulsifier has a kinematic viscosity of 100 to 3000 mm at 25°C. 2 / s, and more preferably 150 to 2500 mm 2 / s, more preferably 200 to 2000 mm 2 Polyether-modified silicone oils in the range of / s have a large molecular weight and high emulsifying power, which can increase the dispersibility of the silver complex and improve the antibacterial activity.

[0068] If the amount of methylphenyl silicone oil is too much, the product will become sticky and its emulsifying properties will weaken during storage, reducing storage stability, while if the amount is too little, the water-repellent and stain-resistant effects will decrease. Has cleaning function When the content is within the range of preferably 0.1 mass % or more and 10.0 mass % or less, more preferably 0.1 mass % or more and 5.0 mass % or less, even more preferably 0.2 mass % or more and 2.0 mass % or less, and particularly preferably 0.5 mass % or more and 1.0 mass % or less, relative to 100 mass % of the total amount of the coating composition, stickiness due to the coating can be suppressed while ensuring water-repellent and antifouling effects, and storage stability can also be improved.

[0069] Furthermore, if there is too much polyether-modified silicone oil as an emulsifier, the viscosity will increase, making the coating more likely to become uneven and reducing water repellency and stain resistance, while if there is too little, the emulsifying power will be weak, causing unevenness in the coating and reducing storage stability. When the polyether-modified silicone oil used as an emulsifier is blended in an amount within the range of preferably 250 parts by mass or more and 800 parts by mass or less, more preferably 300 parts by mass or more and 700 parts by mass or less, and even more preferably 400 parts by mass or more and 600 parts by mass or less, per 100 parts by mass of silicone oil, unevenness in the coating is unlikely to occur, the water-repellent and stain-resistant effects of the silicone oil coating film are ensured, and good storage stability can be achieved.

[0070] Furthermore, if there is too much emulsion-type silicone antifoaming agent, the cleaning power and water repellency / soil resistance will decrease, while if there is too little, the effect of suppressing wiping streaks will not be ensured. Has cleaning function When the blending amount is within the range of preferably 0.05% by mass or more and 0.25% by mass or less, more preferably 0.06% by mass or more and 0.20% by mass or less, and even more preferably 0.07% by mass or more and 0.15% by mass or less, relative to 100% by mass of the total amount of the coating composition, a finish that is less likely to produce streaks when wiping can be ensured without reducing the cleaning effect or water repellency / stain resistance.

[0071] As explained above, the above embodiment Has cleaning function The coating composition contains water as a main component, silicone oil, an emulsifier that emulsifies the water and silicone oil, and a quaternary ammonium salt as a cationic surfactant. Therefore, in the above embodiment Has cleaning functionWhen applied to a surface to be cleaned, the coating composition modifies the surface of dirt adhering to the surface with the cationic surfactant quaternary ammonium salt, dissolving the dirt in water and allowing it to be removed by wiping. Furthermore, a coating film of silicone oil emulsified in water with an emulsifier and positive ions formed by bonding between the positive ions of the quaternary ammonium salt and the hydroxyl groups of water molecules is formed, providing water-repellent and stain-resistant properties. In other words, the coating film provides water-repellent and stain-resistant properties while simultaneously providing a cleaning effect that removes dirt. Furthermore, the combination of silicone oil, water, emulsifier, and cationic surfactant provides water-repellent and stain-resistant properties through the silicone oil and positive ion coating film, making it applicable to a wide range of materials and hypoallergenic because it does not contain alcohol.

[0072] The above embodiment Has cleaning function In the coating composition, if the silicone oil is a non-volatile dimethyl silicone oil or methylphenyl silicone oil, the water repellency can be increased and the durability of the coating can be improved.

[0073] The above embodiment Has cleaning function In the coating composition, the silicone oil is Has cleaning function When the amount of the additive is within the range of preferably 0.1 mass % or more and 10.0 mass % or less, more preferably 0.1 mass % or more and 5.0 mass % or less, even more preferably 0.2 mass % or more and 2.0 mass % or less, and particularly preferably 0.5 mass % or more and 1.0 mass % or less, relative to 100 mass % of the total amount of the coating composition, stickiness caused by the coating can be suppressed while ensuring water-repellent and antifouling effects, and good storage stability can also be achieved.

[0074] The above embodiment Has cleaning functionIn the coating composition, if the emulsifier is a polyether-modified silicone oil having an HLB of 3 to 15, it is possible to enhance the cleaning effect of oily stains. Furthermore, the emulsifying power can be enhanced, and the emulsified state can be further stabilized, thereby improving storage stability. Furthermore, the dispersibility of the silver complex can be improved, which also makes it possible to improve antibacterial properties.

[0075] The above embodiment Has cleaning function In the coating composition, the emulsifier preferably has a kinematic viscosity at 25°C of 100 to 3000 mm 2 / s, and more preferably 150 to 2500 mm 2 / s, more preferably 200 to 2000 mm 2 Within this range, the emulsifying power can be increased, and the emulsion state can be further stabilized, thereby improving storage stability. Furthermore, the dispersibility of the silver complex can be improved, which also makes it possible to improve antibacterial properties.

[0076] The above embodiment Has cleaning function In the coating composition, the emulsifier is preferably blended in an amount of 250 parts by mass or more and 800 parts by mass or less, more preferably 300 parts by mass or more and 700 parts by mass or less, and even more preferably 400 parts by mass or more and 600 parts by mass or less, per 100 parts by mass of silicone oil, so that unevenness in the coating can be suppressed, the water-repellent and stain-resistant coating effects can be ensured, and storage stability can be improved.

[0077] The above embodiment Has cleaning function The coating composition further contains a silicone antifoaming agent, which can suppress the generation of foam, making it less likely to leave streaks when wiping and improving the finish. This silicone antifoaming agent is Has cleaning functionWhen the content is within the range of preferably 0.05 mass % or more and 0.25 mass % or less, more preferably 0.06 mass % or more and 0.20 mass % or less, and even more preferably 0.07 mass % or more and 0.15 mass % or less, relative to the total amount of the coating composition, it is possible to ensure a finish that is less likely to produce wiping streaks while ensuring cleaning effect, water repellency, and stain resistance.

[0078] The above embodiment Has cleaning function The coating composition further contains a silver complex, and therefore can impart antibacterial effects by silver ions.

[0079] The above embodiment is described as follows: silicone oil and an emulsifier are mixed into an aqueous solution of the complex, and then a quaternary ammonium salt as a cationic surfactant, water, and a silicone antifoaming agent are added. Has cleaning function This invention can also be considered as an invention of a method for producing a composition for a coating agent. The above embodiment Has cleaning function According to the method for producing the coating composition, silicone oil and an emulsifier are mixed with an aqueous silver complex solution, and then a quaternary ammonium salt as a cationic surfactant, water, and a silicone antifoaming agent are added. Has cleaning function The coating composition contains water, silicone oil, an emulsifier, a quaternary ammonium salt as a cationic surfactant, a silicone antifoaming agent, and a silver complex. The quaternary ammonium salt as a cationic surfactant provides a cleaning effect by removing dirt from the surface to be cleaned. Furthermore, the silicone oil emulsified in water by the emulsifier and the positive ion coating film formed by bonding the positive ions of the quaternary ammonium salt with the hydroxyl groups of the water molecules provide water-repellent and stain-resistant effects. In other words, the coating provides both cleaning and water-repellent and stain-resistant effects. The combination of silicone oil, water, an emulsifier, and a cationic surfactant provides water-repellent and stain-resistant properties through the silicone oil and positive ion coating film, making it suitable for use on a wide range of materials. It is alcohol-free and therefore hypoallergenic. Furthermore, the silicone antifoaming agent reduces wiping streaks and improves the finish. Additionally, the silver complex provides antibacterial effects through the silver ions.

[0080] In carrying out the present invention, Has cleaning function The composition, ingredients, blending amounts, and other manufacturing steps of the coating composition and other parts of the manufacturing method thereof are not limited to those in this embodiment. Furthermore, the above-mentioned numerical ranges are not strict, and are, of course, approximate values ​​that include errors due to measurement, etc., and do not deny errors of several tens of percent. Furthermore, the numerical values ​​given in the embodiments of the present invention do not indicate critical values, but indicate appropriate values ​​suitable for implementation, and therefore slight changes to the above numerical values ​​do not deny the implementation of the invention.

Claims

1. The composition contains water as a main component, silicone oil, an emulsifier that emulsifies the water and the silicone oil, and a quaternary ammonium salt as a cationic surfactant, The coating composition having cleaning properties is characterized in that the emulsifier is a polyether-modified silicone oil having an HLB of 3 to 15.

2. 2. The coating composition having cleaning properties according to claim 1, wherein the silicone oil is a non-volatile dimethyl silicone oil or a methylphenyl silicone oil.

3. 2. The composition for a coating agent having a cleaning function according to claim 1, wherein the silicone oil is contained in an amount of 0.1 mass % or more and 10.0 mass % or less, relative to 100 mass % of the total amount of the composition for a coating agent having a cleaning function.

4. The emulsifier has a kinematic viscosity at 25°C of 100 to 3000 mm 2 2. The coating composition having cleaning properties according to claim 1, wherein the composition is in the range of 0.1 to 1.0 wt.

5. 2. The coating composition having cleaning properties according to claim 1, wherein the emulsifier is blended in an amount of 250 parts by mass or more and 800 parts by mass or less relative to 100 parts by mass of the silicone oil.

6. 2. The coating composition having cleaning properties according to claim 1, further comprising a silicone antifoaming agent.

7. 7. The composition for a coating agent having a cleaning function according to claim 6, wherein the content of the silicone antifoaming agent is 0.05 mass % or more and 0.25 mass % or less, relative to 100 mass % of the total amount of the composition for a coating agent having a cleaning function.

8. 2. The coating composition having a cleaning function according to claim 1, further comprising a silver complex.

9. A method for producing a coating composition having cleaning properties, comprising mixing a silicone oil and a polyether-modified silicone oil having an HLB of 3 to 15 as an emulsifier with an aqueous silver complex solution, and then adding a quaternary ammonium salt as a cationic surfactant, water, and a silicone antifoaming agent.

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