Peelable cleaner composition

Abstract

To provide a peelable cleaner composition that exhibits superior peelability and cleaning capability.SOLUTION: A peelable cleaner composition comprises (a) a polymer comprising N-vinyl-2-pyrrolidone as a constituent monomer, and (b) at least one surfactant selected from cationic surfactants and amphoteric surfactants.SELECTED DRAWING: None

Description

[Technical field]

[0001] The present invention relates to a stripping cleaner composition and a cleaning method. [Background technology]

[0002] Conventionally, when cleaning an object with dirt attached thereto, it is common to use a combination of a cleaning agent such as water, a surfactant, or a solvent, and a cleaning tool such as a sponge, a dustcloth, a brush, etc. In recent years, sheet-type cleaning tools impregnated with a cleaning solution and adhesive sheet-type cleaning tools that adhere to and remove dust and the like have been proposed to make it easier to clean living environments and the like.

[0003] On the other hand, objects that need to be cleaned are not limited to flat surfaces; there are also objects that have uneven surfaces, complex shapes, and fine structures, which limit the use of cleaning tools (hereinafter, sometimes referred to as complex structures). Such objects are difficult to clean, so they are cleaned less frequently, which causes dirt to adhere, creating a vicious cycle that makes cleaning even more difficult. For this reason, there is a strong demand for technology that can easily clean complex structures.

[0004] Patent Document 1 discloses a technique in which a film-forming polymer is brought into contact with an object, dried to form a film, and the film is peeled off to remove dirt. According to this technique, it is described that a polymer with a glass transition point of -15°C to 50°C is preferable in order to prevent the film from becoming sticky and to obtain peelable properties. Furthermore, a specific example of a cleaning agent for hard surfaces in which a surfactant is used in combination is given. Patent Document 2 discloses a film-forming type detergent composition containing a film-forming emulsion. The publication also discloses a technique for using a surfactant in combination with the composition to enhance cleaning power. Patent Document 3 discloses a cleaning method in which a foam-hardening-peeling cleaner composition containing a film-forming polymer compound is applied in the form of a foam to an object to be cleaned having dirt attached thereto, the applied foam is hardened, and the hardened foam is peeled off from the object to be cleaned together with the dirt. Patent Document 4 discloses a composition for a stripping type cleaner, which contains (a) a film-forming vinyl polymer compound having a glass transition point of -20°C or more and 100°C or less, and (b) a nonionic surfactant having an HLB value of 1 to 14 as determined by the Griffin method. Patent Document 5 discloses a surface adhesion modifying composition comprising a toxicologically acceptable film-forming polymer and a toxicologically acceptable release aid, the film-forming polymer and the release aid being present in a weight ratio of 1:20 to 20:1, and the composition not having an oily or greasy feel or texture when applied to a surface. Patent Document 6 discloses a resin composition for removing contaminants, which is obtained by dissolving a resin capable of forming a peelable film in an aliphatic lower alcohol or a mixed solution of an aliphatic lower alcohol and water. [Prior art documents] [Patent documents]

[0005] [Patent Document 1] JP 2006-16494 A [Patent Document 2] Japanese Patent Application Publication No. 57-40600 [Patent Document 3] JP 2020-132721 A [Patent Document 4] JP 2020-132722 A [Patent Document 5] Special Publication No. 2002-530482 [Patent Document 6] Japanese Patent Application Publication No. 8-283622 Summary of the Invention [Problem to be solved by the invention]

[0006] In a peel-off type cleaner composition used in a type of cleaning that peels off dirt attached to an object using an adhesive substance, a method of improving the adhesiveness of the resin is generally considered to increase the adhesion of dirt and improve the removability, but if the adhesiveness is improved, the peelability is significantly reduced, making it difficult to remove the resin attached to the object. On the other hand, if the adhesiveness is reduced in order to improve the peelability of the resin, the adhesion of dirt is reduced, and satisfactory removability cannot be obtained. In addition, it is desired that the peelability be good on various objects.

[0007] The present invention provides a composition for a stripping cleaner having excellent stripping properties and cleaning power. [Means for solving the problem]

[0008] The present invention relates to a composition for a stripping-type cleaner, which contains (a) a polymer containing N-vinyl-2-pyrrolidone as a constituent monomer [hereinafter referred to as component (a)], and (b) one or more surfactants selected from cationic surfactants and amphoteric surfactants [hereinafter referred to as component (b)].

[0009] The present invention also relates to a cleaning method, which comprises applying a film formed from the peel-off type cleaner composition of the present invention to an object to be cleaned having dirt thereon, and peeling the film together with the dirt from the object to be cleaned. Effect of the Invention

[0010] According to the present invention, there are provided a composition for a stripping-type cleaner having excellent stripping properties and cleaning power, and a cleaning method thereof. The stripping-type cleaner composition of the present invention exhibits good stripping properties on various objects. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0011] <Composition for peeling type cleaner> The peelable cleaner composition of the present invention is a composition that is applied to an object to be cleaned having dirt thereon to form a film, and the film is then cured and peeled off together with the dirt. The film of the composition of the present invention is cured to exhibit appropriate adhesion. The composition of the present invention is also a film-forming agent for cleaning.

[0012] In the present invention, by combining component (a), which is a film-forming polymeric compound, with component (b), which is a specified surfactant, dirt adheres to the film having appropriate adhesiveness formed from component (a), and it becomes possible to easily peel the film from the object with the dirt still attached.

[0013] The component (a) is a polymer containing N-vinyl-2-pyrrolidone as a constituent monomer. Of the constituent monomers of component (a), N-vinyl-2-pyrrolidone accounts for preferably 0.1% by mass or more, more preferably 1% by mass or more, even more preferably 10% by mass or more, still more preferably 70% by mass or more, still more preferably 80% by mass or more, still more preferably 90% by mass or more, and 100% by mass or less.

[0014] Regarding the component (a), the constituent monomer other than N-vinyl-2-pyrrolidone is not particularly limited, and specific examples thereof include: 1) (meth)acrylic acid esters such as methyl (meth)acrylate, ethyl (meth)acrylate, butyl (meth)acrylate, cyclohexyl (meth)acrylate, and hydroxyethyl (meth)acrylate; 2) (meth)acrylamide and (meth)acrylamide derivatives such as N-monomethyl (meth)acrylamide, N-monoethyl (meth)acrylamide, and N,N-dimethyl (meth)acrylamide; 3) basic unsaturated monomers such as dimethylaminoethyl (meth)acrylate, dimethylaminoethyl (meth)acrylamide, vinylpyridine, and vinylimidazole; 4) methylaminoethyl (meth)acrylamide, vinylpyridine, vinylimidazole, and the like; ) vinyl amides such as vinyl formamide, vinyl acetamide, vinyl oxazolidone, etc.; 5) carboxyl group-containing unsaturated monomers such as (meth)acrylic acid, itaconic acid, maleic acid, fumaric acid, etc.; 6) unsaturated acid anhydrides such as maleic anhydride, itaconic anhydride, etc.; 7) vinyl esters such as vinyl acetate, vinyl propionate, etc.; 8) vinyl ethylene carbonate and its derivatives; 9) styrene and its derivatives; 10) (meth)acrylic acid-2-ethyl sulfonate and its derivatives; 11) vinyl sulfonic acid and its derivatives; 12) vinyl ethers such as methyl vinyl ether, ethyl vinyl ether, butyl vinyl ether, etc.; 13) olefins such as ethylene, propylene, octene, butadiene, etc. The constituent monomer other than N-vinyl-2-pyrrolidone may be only one type or two or more types. As the component (a), polyvinylpyrrolidone is preferred.

[0015] From the viewpoint of improving the releasability from the substrate, the weight average molecular weight of the (a) component is preferably 10,000 or more, more preferably 40,000 or more, and even more preferably 100,000 or more, and from the viewpoint of ease of synthesis of the (a) component and ease of production of the composition, it is preferably 5,000,000 or less, more preferably 4,500,000 or less, even more preferably 2,000,000 or less, even more preferably 1,000,000 or less, even more preferably 800,000 or less, even more preferably 500,000 or less, and even more preferably 400,000 or less. This weight average molecular weight is measured by gel permeation chromatography (polystyrene or polyethylene glycol as the molecular weight standard).

[0016] The stripping-type cleaner composition of the present invention contains component (a) in an amount of preferably 0.1% by mass or more, more preferably 1% by mass or more, even more preferably 10% by mass or more, and preferably 99.9% by mass or less, more preferably 99% by mass or less, even more preferably 98% by mass or less.

[0017] The component (b) is one or more surfactants selected from cationic surfactants and amphoteric surfactants.

[0018] Of the component (b), the cationic surfactant is preferably at least one selected from the group consisting of cationic surfactants represented by the following general formula (b1) and cationic surfactants represented by the following general formula (b2).

[0019] [ka]

[0020] [In the formula, R 1b R represents a hydrocarbon group having 8 to 16 carbon atoms. 2b and R 3b R each independently represents an alkyl group having 1 to 3 carbon atoms. 4b represents an alkylene group having 1 to 3 carbon atoms. - represents an anionic group.

[0021] [ka]

[0022] [In the formula, R 5b R represents a hydrocarbon group having 8 to 16 carbon atoms. 6b R represents a group selected from a hydrocarbon group having 8 to 16 carbon atoms, an alkyl group having 1 to 3 carbon atoms, and a hydroxyalkyl group having 1 to 3 carbon atoms. 7b and R 8b each independently represents a group selected from an alkyl group having 1 to 3 carbon atoms and a hydroxyalkyl group having 1 to 3 carbon atoms. - represents an anion.

[0023] In general formula (b1), R 1b From the viewpoint of improving detergency, represents a hydrocarbon group having 8 or more, preferably 10 or more, and 16 or less, preferably 14 or less, more preferably 12 or less, and even more preferably 10 carbon atoms, preferably an alkyl or alkenyl group, more preferably an alkyl group. In addition, in the general formula (b1), R 2b and R 3b are each independently an alkyl group having 1 to 3 carbon atoms, preferably an alkyl group having 1 to 2 carbon atoms, and more preferably a methyl group. In addition, in the general formula (b1), R 4b represents an alkylene group having 1 to 3 carbon atoms, preferably an alkylene group having 1 to 2 carbon atoms, and more preferably a methylene group. In addition, Z in the general formula (b1) - Z is preferably a halogen ion such as a chloride ion. - As for chloride ions (Cl - ) is more preferred.

[0024] In general formula (b2), R 5bFrom the viewpoint of improving detergency, represents a hydrocarbon group having 8 or more, preferably 10 or more, and 16 or less, preferably 14 or less, more preferably 12 or less carbon atoms, preferably an alkyl or alkenyl group, more preferably an alkyl group. In addition, in the general formula (b2), R 6b is a hydrocarbon group having 8 to 16 carbon atoms, R 6b From the viewpoint of improving detergency, represents a hydrocarbon group having 8 or more, preferably 10 or more, and 16 or less, preferably 14 or less, more preferably 12 or less carbon atoms, preferably an alkyl or alkenyl group, more preferably an alkyl group. In addition, in the general formula (b2), R 6b is an alkyl group having 1 to 3 carbon atoms, R 6b is preferably an alkyl group having 1 to 2 carbon atoms, and more preferably a methyl group. In addition, in the general formula (b2), R 7b and R 8b are each independently a group selected from an alkyl group having 1 to 3 carbon atoms and a hydroxyalkyl group having 1 to 3 carbon atoms, preferably an alkyl group having 1 to 3 carbon atoms, more preferably an alkyl group having 1 to 2 carbon atoms, and even more preferably a methyl group. In addition, Z in the general formula (b2) - is preferably a halogen ion such as a chloride ion, and more preferably a chloride ion (Cl - ).

[0025] Among the components (b), the amphoteric surfactant may be one or more amphoteric surfactants selected from amine oxides and betaines, more specifically, one or more amphoteric surfactants selected from tertiary amine oxides, sulfobetaines, and carbobetaines.

[0026] Examples of the tertiary amine oxide include tertiary amine oxides in which one of the groups bonded to the nitrogen atom is an alkyl group having 8 to 18 carbon atoms, preferably an alkyl group having 8 to 16 carbon atoms, more preferably an alkyl group having 8 to 14 carbon atoms, which may be interrupted by an amide group or an ester group, and the remaining is an alkyl group having 1 to 3 carbon atoms, preferably a methyl group. Examples of the tertiary amine oxide include one or more selected from octyl dimethylamine oxide, myristyl dimethylamine oxide, lauryl dimethylamine oxide, and lauric acid amidopropyl dimethylamine oxide, and further one or more selected from lauryl dimethylamine oxide and lauric acid amidopropyl dimethylamine oxide.

[0027] Suitable sulfobetaines are compounds having one alkyl group having 10 or more carbon atoms and 18 or less, preferably 16 or less, and more preferably 14 or less, one alkyl group having 1 to 3 carbon atoms, preferably two methyl groups, and a 3-sulfopropyl group or a 2-hydroxy-3-sulfopropyl group.

[0028] The carbobetaine is preferably one having one alkyl group having 10 or more carbon atoms and 18 or less, preferably 16 or less, more preferably 14 or less, which may be interrupted by an amide group or an ester group, two alkyl groups having 1 to 3 carbon atoms, preferably methyl groups, and one carboxyalkyl group, preferably carboxymethyl group.

[0029] Examples of betaines include one or more selected from lauric acid amidopropyl-N,N-dimethyl acetate betaine, alkyl (having 10 to 18 carbon atoms, for example, 12 carbon atoms)-N,N-dimethyl-2-hydroxypropyl sulfobetaine, and lauric acid amidopropyl-N,N-dimethyl-2-hydroxypropyl betaine, and further one or more selected from alkyl (having 10 to 18 carbon atoms, for example, 12 carbon atoms)-N,N-dimethyl-2-hydroxypropyl sulfobetaine.

[0030] The stripping-type cleaner composition of the present invention contains component (b) in an amount of preferably 0.001% by mass or more, more preferably 0.01% by mass or more, even more preferably 0.1% by mass or more, and preferably 30% by mass or less, more preferably 15% by mass or less, even more preferably 5% by mass or less.

[0031] In the composition for peel-off type cleaner of the present invention, the mass ratio (a) / (b) of the content of component (a) to the content of component (b) is preferably 0.001 or more, more preferably 0.01 or more, and even more preferably 0.1 or more, from the viewpoint of forming a coating that is easy to peel off, and is preferably 99,900 or less, more preferably 3,000 or less, and even more preferably 200 or less, from the viewpoint of forming a coating that is easy to peel off.

[0032] The stripping-type cleaner composition of the present invention may contain a polymeric thickener other than component (a) [hereinafter referred to as component (c)].

[0033] Polymeric thickeners include thickening polysaccharides, cellulose derivatives, and synthetic polymers.

[0034] Examples of thickening polysaccharides include karaya gum, tragacanth gum, gum arabic, acemannan, konjac mannan, acacia gum, ghatti gum, guar gum, locust bean gum, carrageenan, xanthan gum, gellan gum, pullulan, dextran, casein, gelatin, keratin, glutelin, glucagon, gluten, zein, and shellac. Among these, thickening polysaccharides selected from gum arabic, pullulan, carrageenan, xanthan gum, guar gum, and gellan gum, and thickening polysaccharides selected from gum arabic, pullulan, xanthan gum, and guar gum are preferred.

[0035] Examples of cellulose derivatives include hydroxypropylmethylcellulose, hydroxymethylcellulose, hydroxyethylcellulose, methylcellulose, hydroxypropylcellulose, ethylcellulose, carboxymethylcellulose, cellulose acetate phthalate, nitrocellulose, and other cellulose ethers / esters. Among these, cellulose derivatives selected from hydroxypropylmethylcellulose, hydroxymethylcellulose, hydroxyethylcellulose, methylcellulose, hydroxypropylcellulose, ethylcellulose, and carboxymethylcellulose are preferred.

[0036] Specific examples of synthetic polymers include polystyrene sulfonic acid or a salt thereof, polyvinyl alcohol, polyvinylpyrrolidone, polyalkylene oxide, polyacrylamide, polymethylacrylamide, polydimethylmethacrylamide, polyurethane, polyvinyl acetate, polyester, polyamide, polyamine, polyethyleneimine, a copolymer of vinylpyrrolidone and vinyl acetate, and a copolymer of vinylpyrrolidone and caprolactam.

[0037] As the component (c), one or more polymeric thickeners selected from thickening polysaccharides and cellulose derivatives are preferred. As component (c), from the viewpoints of improving the strength of the coating when peeled off and improving the cleansing properties, one or more polymeric thickeners selected from pullulan, gum arabic, and hydroxypropylmethylcellulose are more preferable. From the viewpoint of improving the cleaning property, the (c) component is also preferably a combination of one or more polymeric thickeners selected from pullulan and gum arabic (hereinafter referred to as (c1) component) and one or more polymeric thickeners selected from hydroxypropyl methylcellulose (hereinafter referred to as (c2) component). In this case, (c1) / (c2), which is the mass ratio of the content of the (c1) component to the content of the (c2) component, is preferably 1 or more, more preferably 5 or more, even more preferably 10 or more, still more preferably 15 or more, and preferably 400 or less, more preferably 300 or less, even more preferably 200 or less, and still more preferably 150 or less.

[0038] As component (c), a water-soluble polymer thickener is preferred. The water-soluble polymer thickener as component (c) is one that dissolves at least 1 g in 100 g of water at 25°C. Furthermore, the viscosity of a 1% by mass aqueous solution of component (c) (B-type viscometer, rotor No. 3, 60 rpm, measurement time 1 minute, liquid temperature 25°C) is preferably 100 mPa s or more, more preferably 500 mPa s or more, and preferably 10,0000 mPa s or less, more preferably 50,000 mPa s or less.

[0039] When the stripping-type cleaner composition of the present invention contains component (c), the composition contains component (c) in an amount of preferably 0.01% by mass or more, more preferably 0.1% by mass or more, even more preferably 1% by mass or more, and preferably 99% by mass or less, more preferably 75% by mass or less, even more preferably 50% by mass or less.

[0040] The stripping-type cleaner composition of the present invention may contain, as other optional components, surfactants other than component (b), solvents, fragrances, disinfectants, antibacterial agents, colorants (pigments, dyes), and the like.

[0041] The stripping cleaner composition of the present invention preferably contains water. The stripping-type cleaner composition of the present invention contains, for example, water in an amount of preferably 1 mass % or more, more preferably 5 mass % or more, even more preferably 10 mass % or more, and preferably 99.9 mass % or less, more preferably 99 mass % or less, even more preferably 90 mass % or less.

[0042] The peel-off type cleaner composition of the present invention has a viscosity at 20°C (B-type viscometer, rotor No. 3 or No. 4, 0.3 to 60 rpm (selected according to the rotor), measurement time 1 minute, liquid temperature 20°C) of preferably 500 mPa·s or more, more preferably 1,000 mPa·s or more, and even more preferably 3,000 mPa·s or more, from the viewpoint of expressing appropriate retention on vertical surfaces and the like, and from the viewpoint of ease of production of the composition, it is preferably 5,000,000 mPa·s or less, more preferably 3,000,000 mPa·s or less, and even more preferably 1,000,000 mPa·s or less.

[0043] <Cleaning method> The present invention relates to a cleaning method in which a film formed from the composition for a peel-off type cleaner of the present invention is applied to an object to be cleaned having dirt attached thereto, and the film is peeled off from the object to be cleaned together with the dirt.

[0044] The thickness of the coating is preferably 0.01 mm or more, more preferably 0.05 mm or more, and even more preferably 0.1 mm or more from the viewpoint of improving the peelability of the coating after drying, and is preferably 100 mm or less, more preferably 50 mm or less, and even more preferably 10 mm or less from the viewpoint of improving the drying property of the coating. This thickness may be the thickness in a dry state. The thickness of the coating may be the average thickness (n=5) measured with a vernier caliper.

[0045] The cleaning method of the present invention includes, for example, a cleaning method in which the peel-off cleaner composition of the present invention is applied to an object to be cleaned, the composition is cured, and the cured composition is peeled off from the object to be cleaned together with the dirt. In order to apply the composition for a stripping type cleaner of the present invention to an object to be cleaned, methods include using an aerosol type cleaner in which the composition and a propellant are filled in an aerosol container, spraying the composition with a spray container, and applying the composition. It is preferable that a film of the composition is formed on the object to be cleaned. The film of the composition for a stripping type cleaner of the present invention may be formed by solidification of the composition. For example, the composition may be solidified by evaporation of moisture or volatile components to form a film. That is, in the present invention, the composition for a stripping type cleaner of the present invention may be applied to an object to be cleaned, the composition may be dried and cured, and the cured composition may be peeled off from the object to be cleaned together with the dirt.

[0046] The peel-off type cleaner composition of the present invention forms a resin film layer for peel-off cleaning, preferably an adhesive resin film layer, on the surface of the object to be cleaned. The peel-off type cleaner composition applied to the object to be cleaned usually hardens naturally by simply leaving it alone to form a film. Since the film of the cured composition has moderate adhesiveness, dirt adheres to the film. In the present invention, the film of the cured composition is peeled off from the object to be cleaned together with the dirt. The peel-off type cleaner composition applied to the object to be cleaned preferably hardens to form a film. In addition, in the present invention, the peel-off type cleaner composition may be applied to the object to be cleaned and the composition may be pressed with fingers, tools, or the like. Pressing improves the adhesion between the composition and the object to be cleaned, thereby further enhancing the cleaning effect.

[0047] It is also possible to form a film of the peel-off cleaner composition of the present invention, apply the film to the object to be cleaned, for example by sticking it on, and then peel it off.

[0048] In the present invention, the coating can be applied to the object to be cleaned, for example, attached to the object to be cleaned, and then the coating can be peeled off, for example, after 5 seconds or more, further 60 seconds or more, and 48 hours or less, further 36 hours or less, further 24 hours or less. In the present invention, when the peel-off cleaner composition of the present invention is applied to an object to be cleaned by coating or the like to form a film, the formed film can be peeled off, for example, after 10 seconds or more, further 120 seconds or more, and 48 hours or less, further 36 hours or less, or further 24 hours or less have passed since the composition is applied to the object to be cleaned by coating or the like.

[0049] The object to be cleaned in the present invention is preferably a hard article. The hard article may be an article having a hard surface. Examples of hard articles include those made of materials such as metal (stainless steel, etc.), plastic (polyethylene, polypropylene, polyethylene terephthalate, ABS resin, polycarbonate, acrylic resin, polyvinyl chloride, polytetrafluoroethylene, polyacetal, etc.), glass, ceramics, and wood. Examples of hard articles include window frames, sash frames, door rails, floors, walls, ceilings, desks, switches, and electrical appliances. These hard articles may be hard articles such as facilities and structures such as bathrooms, toilets, washrooms, kitchens, living rooms, verandas, and entrances. The object to be cleaned in the present invention may be a complex structure such as a structure having an uneven surface, a structure having a complex shape, or a structure having a fine structure. The composition of the present invention and the cleaning method using the same have excellent peeling properties for objects made of various materials and complex structures made of various materials, and exhibit excellent cleaning power in a simple manner. EXAMPLES

[0050] <Example 1 and Comparative Example 1> A stripping type cleaner composition was prepared containing 10 mass % of component (a) polyvinylpyrrolidone (weight average molecular weight 360,000), component (b) or a comparative component in the concentration shown in Table 1, with the remainder being water. 2 mL of the composition was applied to the surface of a polyethylene terephthalate (PET) plate at a thickness of 10 cm. 2 The paint was applied in a square shape and dried for 24 hours at 25°C and 52% humidity. After drying, the composition was peeled off with fingers, and the ease of peeling was evaluated according to the following criteria. The results are shown in Table 1. *Criteria for peelability Very good: No residue of composition on the PET plate (all applied amount peeled off) Good: Almost no composition remains on the PET plate (90% to less than 100% of the applied amount peels off) Poor: Composition remains on the PET plate (30% to less than 90% of the applied amount peeled off) Very bad: A large amount of composition remains on the PET plate (less than 30% of the applied amount peels off)

[0051] [Table 1]

[0052] *1 In the comparative example, the peelability was rated as "very poor" at all concentrations of the comparative component: 0.01 mass%, 0.1 mass%, and 1 mass%.

[0053] The ingredients in the table are as follows: *(b) Component Octyldimethylamine oxide: Amphitol 08N, manufactured by Kao Corporation Lauryl dimethylamine oxide: Amphitol 20N, manufactured by Kao Corporation Myristyl dimethylamine oxide: Amphitol 40N, manufactured by Kao Corporation Lauryl amidopropyl dimethylamine oxide: Softazoline LAO(W), manufactured by Kawaken Fine Chemicals Co., Ltd. Lauryl amidopropyl betaine: Amphitol 20AB, manufactured by Kao Corporation Lauryl hydroxysulfobetaine: Amphitol 20HD, manufactured by Kao Corporation Lauryl betaine: Amphitol 20BS, manufactured by Kao Corporation ·C12BAC: In general formula (b1), R 1b is an alkyl group having 12 carbon atoms, R 2b , R 3b is a methyl group, R 4b is a methylene group, Z - is a chloride ion, Sanisol B-50, manufactured by Kao Corporation ·C10BAC: In general formula (b1), R 1b is an alkyl group having 10 carbon atoms, R2b , R 3b is a methyl group, R 4b is a methylene group, Z - is a chloride ion, Levenol RK, manufactured by Kao Corporation ·C8BAC: In general formula (b1), R 1b is an alkyl group having 8 carbon atoms, R 2b , R 3b is a methyl group, R 4b is a methylene group, Z - is a chloride ion, Sanisol 08, manufactured by Kao Corporation C12TMAC: lauryltrimethylammonium chloride, in the general formula (b2), R 5b is an alkyl group having 12 carbon atoms, R 6b , R 7b , and R 8b is a methyl group, Z - is a chloride ion, Kotamin 20W, manufactured by Kao Corporation · C16TMAC: Cetyltrimethylammonium chloride 30% aqueous solution, HLB13.8 (actual value equivalent to the Griffin method), Coatamin 60W, Kao Corporation C18TMAC: Stearyl trimethyl ammonium chloride, Coatamin 86W, manufactured by Kao Corporation

[0054] *Comparative ingredients Sodium dodecylbenzenesulfonate: Neopelex G-25, manufactured by Kao Corporation Sodium benzoate: Fushimi Pharmaceutical Co., Ltd. Paratoluenesulfonic acid: manufactured by Meiyu Sangyo Co., Ltd. Sodium 2,4-dimethylbenzenesulfonate: Tokyo Chemical Industry Co., Ltd. (reagent) Polyoxyethylene lauryl ether (1): Polyoxyethylene (average number of moles of ethylene oxide added: 9) lauryl ether Polyoxyethylene lauryl ether (2): Polyoxyethylene (average number of moles of ethylene oxide added: 23) lauryl ether Polyoxyethylene lauryl ether (3): Polyoxyethylene (average number of moles of ethylene oxide added: 47) lauryl ether Alkyl (C10-16) polyglucoside: Mydol 12, manufactured by Kao Corporation Phenoxyethanol: Produced by Nippon Nyukazai Co., Ltd. 2-Ethylhexyl glyceryl ether: Kao Corporation Phenyl diglycol: Nippon Nyukazai Co., Ltd. Benzyl alcohol: Tosoh Corporation

[0055] <Example 2 and Comparative Example 2> Compositions for stripping type cleaners having the compositions shown in Table 2 were prepared, and their stripping properties for the objects shown in Table 2 were evaluated in the same manner as in Example 1. The results are shown in Table 2.

[0056] [Table 2]

[0057] The components in the table are as follows: Component (B) in the table is the same as in Example 1. PVP K-90: ​​Polyvinylpyrrolidone, manufactured by ISP TECHNOLOGIES, INC., weight average molecular weight 360,000 PVP K-30: Polyvinylpyrrolidone, manufactured by Ashland Specialty Ingredients, weight average molecular weight 40,000 Sodium polystyrene sulfonate: Weight average molecular weight 380,000 Pullulan: Fujifilm Wako Pure Chemical (reagent) Gum arabic: Fujifilm Wako Pure Chemical (reagent) HPMC(A): Hydroxypropyl methylcellulose, manufactured by Shin-Etsu Chemical Co., Ltd., Metolose 60SH, viscosity grade 4000 HPMC(B): Hydroxypropyl methylcellulose, manufactured by Shin-Etsu Chemical Co., Ltd., Metolose 60SH, viscosity grade 10000 HPMC(C): Hydroxypropyl methylcellulose, manufactured by Shin-Etsu Chemical Co., Ltd., Metrose hi90SH, viscosity grade 4000 HPMC(D): Hydroxypropyl methylcellulose, manufactured by Shin-Etsu Chemical Co., Ltd., Metrose hi90SH, viscosity grade 15000 HPMC(E): Hydroxypropyl methylcellulose, manufactured by Shin-Etsu Chemical Co., Ltd., Metrose hi90SH, viscosity grade 30000

[0058] <Example 3> A portion of the stripping cleaner composition of Example 2 was used to evaluate its detergency against solid grease. 0.15 g of crayon (Sakura Cray-Pas, black, Sakura Cray-Pas Corporation) was applied to a PET sheet as a solid oil stain. The peel-off cleaner composition shown in Table 3 was applied to the sheet in a 60 mm x 60 mm square shape. The amount of composition applied was 3.5 to 3.6 g. After application of the composition, the sheet was left to dry at room temperature (25°C) for 24 hours. After drying, the composition was peeled off with a finger, and the solid oil removal rate was calculated from the amount of remaining crayon (Xg) and the amount of applied crayon (0.15 g) using the following formula. The results are shown in Table 3. Solid oil cleaning rate (%) = [1-(X / 0.15)] x 100

[0059] [Table 3]

[0060] <Example 4> Using a portion of the stripping type cleaner composition of Example 2, the cleaning power for inorganic soiling and modified mixed grease was evaluated.

[0061] (1) Evaluation of inorganic dirt cleaning power 0.15 g of type 7 dust or type 11 dust was attached to a PET sheet as inorganic dirt. The peel-off cleaner composition shown in Table 4 was applied to the sheet in a 60 mm x 60 mm square shape. The amount of composition applied was 6.0 g. After application of the composition, the sheet was left to dry at room temperature (25°C) for 24 hours. After drying, the composition was peeled off with a finger, and the dust cleaning rate was calculated from the amount of remaining dust (Xg) and the amount of attached dust (0.15 g) using the following formula. The results are shown in Table 4. Dust cleaning rate (%) = [1-(X / 0.15)] x 100 The seven types of dust used were JIS test powder 1 (seven types) of Kanto loam (calcined product) of JIS Z 8901. The eleven types of dust used were JIS test powder 1 (eleven types) of Kanto loam (calcined product) of JIS Z 8901. The same was true for the following examples.

[0062] (2) Evaluation of cleaning power of denatured mixed oils 0.2 g of modified mixed grease was attached to a PET sheet. The peel-off cleaner composition shown in Table 4 was applied to the sheet in a 60 mm x 60 mm square shape. The amount of composition applied was 3.5 to 3.6 g. After application of the composition, the sheet was left to dry at room temperature (25°C) for 24 hours. After drying, the composition was peeled off with a finger, and the dust cleaning rate was calculated from the amount of the remaining modified mixed grease (Xg) and the amount of the modified mixed grease applied (0.2 g) using the following formula. The results are shown in Table 4. Dust cleaning rate (%) = [1-(X / 0.2)] x 100 The modified mixed fat used was prepared by mixing beef tallow and butter in a 1:1 (mass ratio) ratio and then heating the mixture at 180° C. for 30 minutes.

[0063] [Table 4]

[0064] <Example 5> The peel-off cleaner compositions shown in Table 5 were dried to prepare square films measuring 60 mm x 60 mm (thickness 0.03 mm), and the films were applied to stains in the same manner as in Example 4, except that instead of applying the composition, the films were then peeled off and the cleaning power against 11 types of dust and denatured mixed grease was evaluated under the same conditions. The results are shown in Table 5.

[0065] [Table 5]

[0066] <Example 6> A stripping type cleaner composition was prepared containing, as component (a), polyvinylpyrrolidone having the weight average molecular weight shown in Table 6 at the concentration shown in Table 6, as component (b) 0.1 mass% lauric acid amidopropyl dimethylamine oxide, and the remainder water. The peel-off cleaner composition was applied to the surface of a polyethylene terephthalate (PET) plate by 10 cm 2 So that it becomes a rectangle of 10cm 2 The application amount of component (a) is 500μL / 10cm 2 The composition was applied so that the composition was removed, and then dried for 24 hours under conditions of 25°C and 52%. The coverage rate (%) was calculated from the area (I) of the region where the composition was applied and the area (II) that was still covered with the composition (film) after drying by the formula (II) / area (I)×100, and the coverage was judged according to the following criteria. The coverage rate and cleanability are correlated. In addition, the feel when the film of the composition after drying was peeled off with a finger was evaluated, and the peelability was judged according to the following criteria. The results are shown in Table 6. *Criteria for coverage A: Coverage rate exceeds 75%. B: The coverage rate is more than 50% and 75% or less. C: The coverage rate is more than 25% and 50% or less. D: Coverage rate is 25% or less. *Criteria for peelability A: It easily gets caught on fingers and nails and peels off very easily (easier than B). B: It gets caught on fingers and nails and peels off easily (easier than C). C: Doesn't stick to fingers or nails very well, but can be peeled off (easier to peel off than D). D: Does not scratch fingers or nails and is difficult to peel off.

[0067] [Table 6]

Claims

1. A composition for a stripping type cleaner, comprising: (a) a polymer containing N-vinyl-2-pyrrolidone as a constituent monomer [hereinafter referred to as component (a)]; and (b) one or more surfactants selected from cationic surfactants and amphoteric surfactants [hereinafter referred to as component (b)].

2. 2. The composition according to claim 1, wherein the content of N-vinyl-2-pyrrolidone in the constituent monomers of the component (a) is 0.1% by mass or more. A composition for a stripping cleaner.

3. 3. The composition for a stripping-type cleaner according to claim 1, wherein the component (a) is polyvinylpyrrolidone.

4. 4. The composition for a stripping-type cleaner according to claim 1, wherein the weight average molecular weight of component (a) is 10,000 or more and 5,000,000 or less.

5. The composition for a stripping-type cleaner according to any one of claims 1 to 4, wherein the cationic surfactant is one or more cationic surfactants selected from the group consisting of cationic surfactants represented by general formula (b1) and cationic surfactants represented by general formula (b2): 【Chemistry 1】 [In the formula, R １ｂ R represents a hydrocarbon group having 8 to 16 carbon atoms. ２ｂ and R ３ｂ R each independently represents an alkyl group having 1 to 3 carbon atoms. ４ｂ represents an alkylene group having 1 to 3 carbon atoms. － represents an anionic group. 【Chemistry 2】 [In the formula, R ５ｂ R represents a hydrocarbon group having 8 to 16 carbon atoms. ６ｂ R represents a group selected from a hydrocarbon group having 8 to 16 carbon atoms, an alkyl group having 1 to 3 carbon atoms, and a hydroxyalkyl group having 1 to 3 carbon atoms. ７ｂ and R ８ｂ each independently represents a group selected from an alkyl group having 1 to 3 carbon atoms and a hydroxyalkyl group having 1 to 3 carbon atoms. － represents an anion.

6. 6. The composition for a stripping-type cleaner according to claim 1, wherein the amphoteric surfactant is one or more amphoteric surfactants selected from the group consisting of amine oxides and betaines.

7. 7. The composition for a stripping-type cleaner according to claim 1, wherein the mass ratio (a) / (b) of the component (a) to the component (b) is 0.001 or more and 99,900 or less.

8. The composition for a stripping-type cleaner according to any one of claims 1 to 7, comprising component (a) in an amount of 0.1% by mass or more and 99.9% by mass or less.

9. The composition for a stripping-type cleaner according to any one of claims 1 to 8, comprising component (b) in an amount of 0.001% by mass or more and 30% by mass or less.

10. 10. The stripping-type cleaner composition according to claim 1, having a viscosity at 20° C. of 500 mPa·s or more and 5,000,000 mPa·s or less.

11. A cleaning method comprising applying a film formed from the peel-off type cleaner composition according to any one of claims 1 to 10 to an object to be cleaned having dirt thereon, and peeling the film together with the dirt from the object to be cleaned.

12. The cleaning method according to claim 11, comprising applying the peel-off type cleaner composition to an object to be cleaned having dirt thereon, curing the composition to form a film, and peeling the film together with the dirt from the object to be cleaned.

13. The cleaning method according to claim 11 or 12, wherein the object to be cleaned is a hard article.

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