Chlorine bleach composition, chlorine bleach in spray container and method of cleaning hard surfaces

Abstract

To provide a chlorine-based bleaching agent composition suitable for bleaching a vertical or inclined hard surface.SOLUTION: 0.1 to 5.0 mass% of a hypochlorite as a component (A), 0.5 to 2.0 mass% of an amine oxide having an alkyl chain with 8 to 12 carbon atoms as a component (B), 0.1 to 1.0 mass% of one or more compounds selected from an alkyl sulfate, an alkyl ether sulfate, and a fatty acid salt as a component (C), and 0.1 to 2.0 mass% of a hydroxide of an alkali metal as a component (D), A mass ratio (B) / (C) of the component (B) to the component (C) is in the range of 2.0 to 5.0.SELECTED DRAWING: None

Description

[Technical Field]

[0001] The present invention relates to a chlorine bleach composition, a chlorine bleach in a spray bottle, and a method for cleaning hard surfaces. More specifically, the present invention relates to a chlorine bleach composition and a chlorine bleach in a spray bottle that are suitable for cleaning and bleaching vertical or inclined hard surfaces, and a method for cleaning hard surfaces using these chlorine bleach compositions. [Background technology]

[0002] Chlorine bleach compositions containing an alkali metal hypochlorite as a basic component are often used to remove stains and mold that occur on hard surfaces such as tiles, joints, plastics, ceramics, drainage pipes, etc. in bathrooms, kitchens, etc. One commonly used method for using such chlorine bleach compositions is to spray the chlorine bleach composition in the form of foam from a spray container.

[0003] By spraying the chlorine bleach composition in foam form, the alkali metal hypochlorite will adhere and remain in foam form on the surface of the object to be cleaned, which is expected to improve the cleaning and bleaching effect.

[0004] However, when a chlorine bleach composition is sprayed onto an object to be cleaned that is angled, such as a vertical surface, using a spray container, the foam of the chlorine bleach composition quickly drips off, which makes it impossible to ensure a sufficient contact time between the chlorine bleach composition and the dirt on the object to be cleaned, resulting in a problem of insufficient cleaning effect.

[0005] To solve these problems, chlorine bleach compositions with excellent adhesion and low dripping have been proposed. For example, Patent Document 1 describes a liquid bleach composition containing (a) 0.5 to 5 wt% of an alkali metal hypochlorite, (b) 0.2 to 0.5 wt% of an alkali metal hydroxide, (c) 0.05 to 1 wt% of a tertiary amine oxide, and (d) 0.05 to 1 wt% of one or more selected from alkyl sulfates and secondary alkanesulfonates, wherein the total amount of components (c) and (d) is 1.5 wt% or less. Patent Document 2 describes a liquid detergent composition containing (a) 0.1 to 8.0 mass% of an alkali metal hypochlorite, (b) 0.1 to 10 mass% of an alkaline agent, and (c) 0.1 to 3.0 mass% of an amine oxide mixture consisting of octyldimethylamine oxide and lauryldimethylamine oxide, wherein the mass ratio of octyldimethylamine oxide to lauryldimethylamine oxide is 1:9 to 9:1. [Prior art documents] [Patent documents]

[0006] [Patent Document 1] Japanese Patent Application Laid-Open No. 2002-212595 [Patent Document 2] Japanese Patent Application Laid-Open No. 2005-281651 Summary of the Invention [Problem to be solved by the invention]

[0007] As employed in Patent Document 1, a chlorine bleach composition containing a tertiary amine oxide enhances the adhesion and retention of foam on the surface of the object to be cleaned, and the foamy chlorine bleach composition remains in the area to be cleaned.

[0008] However, such chlorine bleach compositions have a low foam spread over time, and therefore require repeated spraying in order to bleach a wide area such as a cutting board or wall surface. Repeated spraying of the chlorine bleach composition leads to an increase in the amount of the chlorine bleach composition used, which not only increases the user's time and cost but also increases the burden on the environment.

[0009] Under these circumstances, a primary object of the present invention is to provide a chlorine bleach composition suitable for bleaching vertical or inclined hard surfaces. Another object of the present invention is to provide a chlorine bleach in a spray bottle in which the chlorine bleach composition is filled in a spray bottle, and a method for cleaning hard surfaces using the chlorine bleach composition. [Means for solving the problem]

[0010] The present inventors conducted extensive research to solve the above-mentioned problems. As a result, they found that by blending 0.1 to 5.0 mass% of hypochlorite as component (A), 0.5 to 2.0 mass% of amine oxide having an alkyl chain containing 8 to 12 carbon atoms as component (B), 0.1 to 1.0 mass% of one or more compounds selected from alkyl sulfate salts, alkyl ether sulfate salts, and fatty acid salts as component (C), and 0.1 to 2.0 mass% of alkali metal hydroxide as component (D) in a chlorine bleach composition, and further setting the mass ratio (B) / (C) of component (B) to component (C) within a predetermined range, a foamy chlorine bleach composition applied to a hard surface perpendicular or inclined to the ground spreads appropriately in foamy form due to gravity, enabling cleaning and bleaching of a wide area. The present invention was completed based on these findings and further research.

[0011] That is, the present invention provides the following aspects of the invention. Item 1. 0.1 to 5.0 mass% of hypochlorite as component (A), 0.5 to 2.0 mass% of an amine oxide having an alkyl chain with 8 to 12 carbon atoms as a component (B), 0.1 to 1.0 mass% of one or more compounds selected from alkyl sulfate ester salts, alkyl ether sulfate ester salts, and fatty acid salts as component (C); 0.1 to 2.0 mass% of an alkali metal hydroxide as a component (D), Contains A chlorine bleach composition, wherein the mass ratio (B) / (C) of the component (B) to the component (C) is in the range of 2.0 to 5.0. Item 2. The chlorine bleach composition according to Item 1, wherein the content of component (B) is 60% by mass or more, based on the total mass (100% by mass) of all surfactants contained in the chlorine bleach composition. Item 3. The component (B) contains one or more compounds selected from octyldimethylamine oxide and decyldimethylamine oxide, Item 3. The chlorine bleach composition according to Item 1 or 2, wherein the total content of octyldimethylamine oxide and decyldimethylamine oxide in component (B) is 70% by mass or more. Item 4. The chlorine bleach composition according to any one of Items 1 to 3, wherein the total content of the component (B) and the component (C) is 0.5 to 3.0% by mass. Item 5. The chlorine bleach composition according to any one of Items 1 to 4, further comprising a silicate as component (E). Item 6. The chlorine bleach composition according to any one of Items 1 to 5, wherein the chlorine bleach composition is sprayed from a spray container from a position 10 cm horizontally away from a plastic cutting board placed upright at a height of 15 cm under the following spraying conditions, and foam of the chlorine bleach composition is deposited on the surface of the cutting board. 60 seconds after spraying, the area of ​​the foam on the cutting board is 1.2 times or more larger than the area of ​​the foam on the cutting board immediately after spraying. (Spraying conditions) The amount of the chlorine bleach composition sprayed from the spray container is 0.5 to 1.5 g, and the area of ​​the foam immediately after spraying is 5.0 to 20.0 cm. 2 The range is as follows. The measurement environment is atmospheric pressure and a room temperature of 25°C. Item 7. A chlorine bleach in a spray container, wherein the chlorine bleach composition according to any one of items 1 to 6 is filled in a spray container. Item 8. A method for cleaning a hard surface, comprising the step of spraying the chlorine bleach composition according to any one of items 1 to 6 in the form of foam from a spray container and allowing the foam of the chlorine bleach composition to adhere to a hard surface. [Effects of the Invention]

[0012] According to the present invention, there is provided a chlorine bleach composition suitable for bleaching vertical or inclined hard surfaces. Furthermore, according to the present invention, there is also provided a chlorine bleach in a spray bottle in which the chlorine bleach composition is filled in a spray bottle, and a method for cleaning hard surfaces using the chlorine bleach composition. DETAILED DESCRIPTION OF THE INVENTION

[0013] The chlorine bleach composition of the present invention contains 0.1 to 5.0 mass% of hypochlorite as component (A), 0.5 to 2.0 mass% of an amine oxide having an alkyl chain containing 8 to 12 carbon atoms as component (B), 0.1 to 1.0 mass% of one or more compounds selected from alkyl sulfate salts, alkyl ether sulfate salts, and fatty acid salts as component (C), and 0.1 to 2.0 mass% of an alkali metal hydroxide as component (D), wherein the mass ratio (B) / (C) of component (B) to component (C) is in the range of 2.0 to 5.0.

[0014] Because the chlorine bleach composition of the present invention has such a constitution, when the foamy chlorine bleach composition is attached to a hard surface that is vertical or inclined relative to the ground, it spreads appropriately in a foamy form due to gravity, and can clean and bleach a wide area, making it a chlorine bleach composition suitable for bleaching vertical or inclined hard surfaces.

[0015] The chlorine bleach composition of the present invention, the chlorine bleach in a spray bottle in which the chlorine bleach composition is filled in a spray bottle, and a method for cleaning hard surfaces using the chlorine bleach composition will be described in detail below. In this specification, numerical values ​​connected with "~" indicate a numerical range including the numerical values ​​before and after "~" as the lower and upper limits. When multiple lower limits and multiple upper limits are listed separately, any lower limit and upper limit can be selected and connected with "~".

[0016] Furthermore, the description of the amount of each component in this specification refers to the amount of pure components. Furthermore, "perpendicular to the ground" means a direction at 90° with the ground as the horizontal plane, and "inclined to the ground" means an inclination, for example, in the range of 5° to 90° with the ground as the horizontal plane.

[0017] <Chlorine bleach composition> The chlorine bleach composition of the present invention contains at least a hypochlorite as component (A), an amine oxide having an alkyl chain containing 8 to 12 carbon atoms as component (B), one or more compounds selected from alkyl sulfate salts, alkyl ether sulfate salts, and fatty acid salts as component (C), and an alkali metal hydroxide as component (D).

[0018] [Component (A)] Component (A) is a hypochlorite.

[0019] The hypochlorite is preferably the alkali metal hypochlorite.The preferred concrete example of the alkali metal hypochlorite can include sodium hypochlorite and potassium hypochlorite, and the hypochlorite is particularly preferably sodium hypochlorite.The hypochlorite can be, for example, commercially available product.

[0020] The chlorine bleach composition of the present invention may contain only one type of hypochlorite, or two or more types of hypochlorite.

[0021] The hypochlorite content in the chlorine bleach composition of the present invention may be in the range of 0.1 to 5.0% by mass, but from the viewpoint of more optimally exhibiting the effects of the present invention, the content is preferably in the range of 0.1 to 3.0% by mass. If the content of component (A) is less than 0.1% by mass, the bleaching power will be insufficient, and if it exceeds 5.0% by mass, no particular improvement in bleaching power can be expected. The hypochlorite content in the chlorine bleach composition is optimally in the range of 0.1 to 5.0% by mass to exhibit the bleaching effect.

[0022] [(B) Component] Component (B) is an amine oxide having an alkyl chain with 8 to 12 carbon atoms. For example, a commercially available product can be used as component (B). The chlorine bleach composition of the present invention may contain only one type of component (B), or two or more types.

[0023] The content of component (B) in the chlorine bleach composition of the present invention may be in the range of 0.5 to 2.0% by mass, but from the viewpoint of more suitably exhibiting the effects of the present invention, the content is preferably in the range of 0.5 to 1.8% by mass. If the content of component (B) in the chlorine bleach composition of the present invention is less than 0.5% by mass, the foaming power and foam retention of the chlorine bleach composition are likely to be insufficient, while if it exceeds 2.0% by mass, the foam extension of the chlorine bleach composition and the stability of the hypochlorite are likely to be affected.

[0024] To more suitably exhibit the effects of the present invention, the amine oxide having an alkyl chain containing 8 to 12 carbon atoms preferably includes at least one selected from the group consisting of octyldimethylamine oxide and decyldimethylamine oxide. Furthermore, to more suitably exhibit the effects of the present invention, the total content of octyldimethylamine oxide and decyldimethylamine oxide relative to the total mass (100 mass%) of component (B) is preferably 70 mass% or more. By satisfying this content, the retention of the chlorine bleach composition of the present invention when it is adhered in foam form to a hard surface can be suitably improved.

[0025] Furthermore, when component (B) contains decyldimethylamine oxide, from the viewpoint of more suitably exhibiting the effects of the present invention, the content of decyldimethylamine oxide in the chlorine bleach composition of the present invention is preferably 0.3 to 2.0 mass%, more preferably 0.5 to 2.0 mass%, and even more preferably 0.5 to 1.5 mass%. A decyldimethylamine oxide content of 0.3 mass% or more suitably enhances the foaming power and foam retention of the chlorine bleach composition, while a content of 2.0 mass% or less has the advantage of being less likely to affect the foam spread of the chlorine bleach composition and the stability of the hypochlorite.

[0026] Furthermore, when component (B) contains octyldimethylamine oxide, from the viewpoint of more suitably exhibiting the effects of the present invention, the content of octyldimethylamine oxide in the chlorine bleach composition of the present invention is preferably 0.05 to 2.0 mass%, more preferably 0.05 to 1.5 mass%, even more preferably 0.1 to 1.0 mass%, and even more preferably 0.1 to 0.5 mass%. An octyldimethylamine oxide content of 0.05 mass% or more suitably enhances the foaming power and foam retention of the chlorine bleach composition, while an octyldimethylamine oxide content of 2.0 mass% or less has the advantage of being less likely to affect the foam extension of the chlorine bleach composition and the stability of the hypochlorite.

[0027] Furthermore, from the viewpoint of more suitably exerting the effects of the present invention, the content of component (B) is preferably 60% by mass or more, more preferably 65% ​​by mass or more, based on the total mass (100% by mass) of all surfactants (e.g., component (B), component (C), etc.) contained in the chlorine bleach composition of the present invention, with the upper limit being, for example, 83.35% by mass or less, 83% by mass or less, 80% by mass or less, etc. A content of 60% by mass or more can suitably enhance the foaming power of the chlorine bleach composition of the present invention.

[0028] [(C) component] Component (C) is one or more compounds selected from alkyl sulfates, alkyl ether sulfates, and fatty acid salts. Component (C) can be, for example, a commercially available product. The chlorine bleach composition of the present invention may contain only one or more of these compounds as component (C).

[0029] The content of component (C) in the chlorine bleach composition of the present invention may be in the range of 0.1 to 1.0% by mass, but from the viewpoint of more suitably exhibiting the effects of the present invention, the content is preferably in the range of 0.1 to 0.8% by mass, more preferably 0.1 to 0.5% by mass. If the content of component (B) in the chlorine bleach composition of the present invention is less than 0.5% by mass, the foam retention of the chlorine bleach composition of the present invention is likely to be insufficient, and if it exceeds 2.0% by mass, the foam extension of the chlorine bleach composition and the stability of the hypochlorite are likely to be affected.

[0030] From the viewpoint of more suitably exerting the effects of the present invention, the alkyl sulfate salts and alkyl ether sulfate salts of component (C) preferably have an alkyl group having 1 to 18 carbon atoms, and preferably have an alkyl group having 12 carbon atoms. Particularly preferred examples of the alkyl sulfate salts and alkyl ether sulfate salts include sodium lauryl sulfate and sodium polyoxyalkylene lauryl ether sulfate. Furthermore, from the same viewpoint, the fatty acid salts of component (C) are preferably fatty acid salts having 12 to 18 carbon atoms, and more preferably fatty acid salts having 14 carbon atoms. A particularly preferred example of the fatty acid salt is potassium myristate.

[0031] In the present invention, the mass ratio (B) / (C) of component (B) to component (C) is in the range of 2.0 to 5.0. From the viewpoint of more suitably exerting the effects of the present invention, the mass ratio (B) / (C) is preferably in the range of 2.5 to 5.0. If the mass ratio (B) / (C) is 2.0 or less, the foaming property and foam retention of the chlorine bleach composition tend to be insufficient. On the other hand, if it exceeds 5.0, the foam extension and foam retention of the chlorine bleach composition tend to be insufficient.

[0032] From the viewpoint of more suitably exerting the effects of the present invention, the total content of the (B) component and the (C) component is preferably 0.5 to 3.0 mass%, more preferably 0.5 to 2.0 mass%.

[0033] [(D) component] Component (D) is an alkali metal hydroxide.

[0034] Examples of alkali metal hydroxides include sodium hydroxide and potassium hydroxide. Commercially available alkali metal hydroxides can be used. The chlorine bleach composition of the present invention may contain one or more types of component (D).

[0035] The content of component (D) in the chlorine bleach composition of the present invention may be in the range of 0.1 to 2.0% by mass, but from the viewpoint of more suitably exhibiting the effects of the present invention, the content is preferably 0.1 to 1.0% by mass, more preferably 0.5 to 1.0% by mass. A content within the range of 0.1 to 2.0% by mass improves the stability of the hypochlorite in the chlorine bleach composition of the present invention.

[0036] [(E) component] Component (E) is a silicate, and is a component that is optionally blended into the chlorine bleach composition of the present invention. By including component (E) in the chlorine bleach composition of the present invention, improved stability of the chlorine bleach composition can be expected.

[0037] Specific examples of silicates include sodium metasilicate, sodium orthosilicate, No. 1 sodium silicate, No. 2 sodium silicate, No. 3 sodium silicate, No. 4 sodium silicate, 1K potassium silicate, and 2K potassium silicate.

[0038] The silicate may be, for example, a commercially available product. When the chlorine bleach composition of the present invention contains the component (E), the chlorine bleach composition may contain only one type of component (E), or two or more types of component (E).

[0039] When the chlorine bleach composition of the present invention contains component (E), the content of component (E) in the chlorine bleach composition of the present invention is preferably 0.01 to 0.1 mass%, more preferably 0.03 to 0.07 mass%. When the blending amount of component (E) is within the range of 0.01 to 0.1 mass%, the stability of the chlorine bleach composition of the present invention can be improved without impairing the excellent foam retention of the chlorine bleach composition of the present invention.

[0040] [water] The chlorine bleach composition of the present invention contains water. The chlorine bleach composition of the present invention is a liquid chlorine bleach composition containing water, which is sprayed from a spray container or the like to form a foam, and the foam of the chlorine bleach composition is deposited on a hard surface to perform cleaning and bleaching.

[0041] The water content in the chlorine bleach composition of the present invention is preferably 88% by mass or more, more preferably 90% by mass or more, more preferably 92% by mass or more, and is preferably 99% by mass or less, more preferably 98% by mass or less. Preferred ranges include about 88 to 99% by mass, 88 to 98% by mass, about 90 to 99% by mass, 90 to 98% by mass, about 92 to 99% by mass, and 92 to 98% by mass.

[0042] The type of water is not particularly limited, and tap water, distilled water, pure water, ion-exchanged water, etc. can be used, and two or more types can also be used in combination.

[0043] [Other ingredients] In addition to the above-described components (A) to (E) and water, the chlorine bleach composition of the present invention may optionally contain components such as antigelling agents, metal corrosion inhibitors, solubilizers, thickeners, enzymes, fragrances, dyes, pigments, bactericides, preservatives, antifungal agents, and pH adjusters. The amounts of these components added can be determined appropriately by those skilled in the art as long as they do not affect the effects of the present invention. When the chlorine bleach composition of the present invention contains other components, the content of these components is preferably 2.0% by mass or less, more preferably 1.5% by mass or less, even more preferably 1.0% by mass or less, and even preferably 0% by mass.

[0044] The chlorine bleach composition of the present invention may further include, without limitation, surfactants other than components (B) and (C), which are used in known chlorine bleach compositions. Specific examples of surfactants other than components (B) and (C) include anionic surfactants such as alkylbenzene sulfonates, polyoxyalkylene alkyl ether carboxylates, polyoxyethylene alkylphenyl ether sulfonates, alkyl sulfosuccinates, alkylnaphthalene sulfonates, alkyldiphenyl ether disulfonates, and alkyl phosphates; nonionic surfactants such as polyoxyalkylene alkyl ethers, polyoxyalkylene alkenyl ethers, polyoxyalkylene alkylphenyl ethers, polyalkylene glycols, fatty acid alkanolamides, fatty acid polyoxyethylene esters, fatty acid sorbitan esters, and alkyl glyceryl ethers; amphoteric surfactants such as betaines (e.g., alkylaminoacetic acid betaines, alkylamidopropyl betaines, and alkylhydroxysulfobetaines) and amide amino acids; and cationic surfactants (e.g., benzalkonium chloride, alkylbenzyldimethylammonium salts, alkyltrimethylammonium salts, and dialkyldimethylammonium salts). The surfactant different from the components (B) and (C) may be used alone or in combination of two or more.

[0045] When the chlorine bleach composition of the present invention contains a surfactant other than the components (B) and (C), the content thereof is 2.0% by mass or less, preferably 1.5% by mass or less, and more preferably 1.0% by mass or less.

[0046] The chlorine bleach composition of the present invention is sprayed from a spray container from a position 10 cm horizontally away from a position 15 cm high on a vertically standing plastic cutting board under the following spraying conditions, and when foam of the chlorine bleach composition is deposited on the surface of the cutting board, the area of ​​the foam on the cutting board 60 seconds after spraying preferably expands to at least 1.2 times, more preferably at least 1.6 times, and even more preferably at least 2.0 times the area of ​​the foam on the cutting board immediately after spraying. Note that there is no upper limit to the area of ​​the foam on the cutting board 60 seconds after spraying, as it is desirable for the foam to continue to expand as long as it does not drip off the cutting board. (Spraying conditions) The amount of the chlorine bleach composition sprayed from the spray container is 0.5 to 1.5 g, and the area of ​​the foam immediately after spraying is 5.0 to 20.0 cm. 2 The range is as follows. The measurement environment is atmospheric pressure and a room temperature of 25°C.

[0047] [Method of producing chlorine bleach composition] The chlorine bleach composition of the present invention can be prepared by mixing components (A), (B), (C), (D), water, optionally blended component (E), and optionally blended other components. The components can be mixed using a stirrer or the like so that the components in the chlorine bleach composition of the present invention are mixed uniformly.

[0048] The order in which the components are mixed is not particularly limited. For example, a method can be used in which component (A), component (B), component (C), component (D), component (E) which is blended as needed, and other components which are blended as needed are added to water in any order and stirred.

[0049] <Chlorine bleach in a spray bottle> The chlorine bleach in a spray container of the present invention is prepared by filling the chlorine bleach composition of the present invention in a spray container (sprayer container).

[0050] The spray container is not particularly limited as long as it can spray the chlorine bleach composition of the present invention in foam form, and examples thereof include manual spray devices that do not use a propellant, such as trigger-type spray containers and pump-type spray containers, and aerosols that use a propellant. In the present invention, trigger-type spray containers that can spray or apply the contents in foam form are preferred. Commercially available spray containers can be used, and an appropriate one that can spray the chlorine bleach composition of the present invention in foam form is selected.

[0051] The amount of the chlorine bleach composition sprayed from the spray container in one spray is, for example, about 0.5 to 1.5 g, preferably about 0.7 to 1.3 g. When the chlorine bleach composition is sprayed in one spray from the spray container from a position 10 cm horizontally away from the object, the area of ​​the foam adhering to the object immediately after spraying is, for example, 5.0 to 20.0 cm. 2 Approximately 6.0 to 18.0 cm 2 That's about it.

[0052] <How to clean hard surfaces> The method for cleaning hard surfaces of the present invention is a method for cleaning and bleaching hard surfaces, which includes a step (cleaning step) of spraying the chlorine bleach composition of the present invention in the form of foam from a spray container and allowing the foam of the chlorine bleach composition to adhere to a hard surface. That is, the cleaning method of the present invention is a cleaning method that uses the chlorine bleach composition of the present invention (particularly, chlorine bleach in a spray container) described above.

[0053] In the cleaning step, the chlorine bleach composition may be brought into contact with a hard surface, but from the viewpoint of more suitably exerting the effects of the present invention, it is preferable to keep the chlorine bleach composition in a foamy state in contact with the hard surface for, for example, about 30 seconds to 30 minutes, preferably about 1 to 20 minutes. During this time, the hard surface may be polished with a brush or the like, or the chlorine bleach composition may be left to stand in a foamy state attached to the hard surface.

[0054] The environmental temperature during the washing step is not particularly limited, but is preferably about 0 to 50°C, more preferably about 5 to 40°C, from the viewpoint of more suitably exerting the effects of the present invention.

[0055] The method for cleaning hard surfaces of the present invention preferably further comprises a step of rinsing with water (rinsing step) after a certain period of time has elapsed since the cleaning step in which the liquid bleach composition of the present invention is sprayed in foam form from a spray container and the foam of the chlorine bleach composition is attached to the hard surface. The rinsing time is not particularly limited, and may be any time sufficient to sufficiently remove the chlorine bleach composition from the hard surface. The temperature of the water used for rinsing the detergent with water is not particularly limited, and may be, for example, about 5 to 60°C, preferably about 20 to 50°C.

[0056] The chlorine bleach composition of the present invention can be used to clean various hard surfaces of items such as tableware, containers, cooking utensils, kitchen appliances, extractor fans, ranges, ovens, sinks, and floors in kitchens and work areas in kitchens, restaurants, supermarkets, food factories, etc. Examples of hard surface materials include hard resin surfaces such as plastics, metal surfaces such as stainless steel and iron, ceramic surfaces such as tiles, and combinations thereof.

[0057] After the rinsing step, the water can be wiped off and the product can be dried, if necessary. [Example]

[0058] The present invention will be described in detail below with reference to examples and comparative examples. However, the present invention is not limited to these examples. Details of the devices, materials, implementation procedures, etc. in the examples and comparative examples are as follows.

[0059] Component (A): Hypochlorite (A) Sodium hypochlorite (manufactured by Tosoh Corporation)

[0060] Component (B): Alkyldimethylamine oxide with an alkyl chain containing 8 to 12 carbon atoms (B1) Decyldimethylamine oxide (trade name: "Genaminox K-10", manufactured by Clariant) (B2) Octyldimethylamine oxide (trade name: "Genaminox OC", manufactured by Clariant) (B3) Lauryl dimethylamine oxide (trade name: "Amphitol 20N", manufactured by Kao Corporation)

[0061] Component (C): Alkyl sulfate ester salts, alkyl ether sulfate ester salts, and fatty acid salts (C1) Sodium lauryl sulfate (trade name: "Emeral 10G", manufactured by Kao Corporation) (C2) Sodium polyoxyethylene lauryl ether sulfate (trade name: "Emeral E-227S", manufactured by Kao Corporation) (C3) Potassium myristate (trade name: "Potassium myristate", manufactured by Fujifilm Wako Pure Chemical Industries, Ltd.)

[0062] Component (D): Alkali metal hydroxide (D) Sodium hydroxide (Tosoh Corporation)

[0063] Ingredient (E): Powder No. 1 sodium silicate

[0064] Examples 1-16 and Comparative Examples 1-11 (Preparation of Chlorine Bleach Composition) Chlorine bleach compositions containing sodium hypochlorite and various surfactants were prepared so as to have the compositions shown in Tables 1 to 5.

[0065] (Evaluation of Chlorine Bleach Compositions) Each chlorine bleach composition was sprayed using a spray container (trigger sprayer) and evaluated for foaming power, foam condition, foam spread, foam adhesion, and foam retention. The chlorine bleach compositions were evaluated by the following methods. The storage stability of each chlorine bleach composition was also evaluated. The evaluation results are shown in Tables 1 to 5. The trigger sprayer used was a commercially available mold removal liquid detergent trigger sprayer manufactured by Yoshino Kogyo Co., Ltd.

[0066] <Foaming power test> (1) Evaluation method The chlorine bleach composition was sprayed from a spray container (one push of a trigger sprayer) from a position 10 cm horizontally away from a plastic cutting board placed upright at a height of 15 cm under the following spraying conditions, and foam of the chlorine bleach composition was deposited on the surface of the cutting board. The spraying conditions were as follows: the amount of the chlorine bleach composition sprayed from the spray container was 0.7 to 0.9 g, and the area of ​​the foam immediately after spraying was 6.0 to 18.0 cm. 2 The foaming power was evaluated according to the following criteria. (2) Evaluation criteria ○: The foam does not scatter and is sprayed as a solid foam. ×: The foam scatters and is sprayed in a liquid form.

[0067] <Foam stretch test> (1) Evaluation method The chlorine bleach composition was sprayed from a spray container (one push of a trigger sprayer) from a position 10 cm away horizontally from a position 15 cm high on a vertically standing plastic cutting board under the following spraying conditions, and foam of the chlorine bleach composition was adhered to the surface of the cutting board. The spraying conditions were as follows: the amount of the chlorine bleach composition sprayed from the spray container was 0.7 to 0.9 g, and the area of ​​the foam immediately after spraying was 6.0 to 18.0 cm. 2 The foam area was measured immediately after spraying, and then after 60 seconds had passed, and the foam spread was evaluated. (2) Evaluation criteria Calculation formula: Foam area change rate (%) = Foam area after 60 seconds / Foam area immediately after spraying x 100 Based on the values ​​obtained from the above calculation formula, the foam growth was evaluated using the following score from the rate of change in foam area. Score AAA: Foam area change rate of 200% or more Score AA: Bubble area change rate 160-200% Score A: Foam area change rate 120-160% or less Score B: Foam area change rate 100-120% or less Score C: Foam area change rate less than 100% When the score was A or higher, the composition was evaluated as having excellent foam spread (passed).

[0068] <Foam adhesion test> (1) Evaluation method The chlorine bleach composition was sprayed from a spray container (one push of a trigger sprayer) from a position 10 cm away horizontally from a position 15 cm high on a vertically standing plastic cutting board under the following spraying conditions, and foam of the chlorine bleach composition was adhered to the surface of the cutting board. The spraying conditions were as follows: the amount of the chlorine bleach composition sprayed from the spray container was 0.7 to 0.9 g, and the area of ​​the foam immediately after spraying was 6.0 to 18.0 cm. 2 The measurement environment was atmospheric pressure and a room temperature of 25°C. The adhesive strength at the location where the foam was sprayed was evaluated according to the following evaluation criteria. (2) Evaluation criteria ◎: Foam remains unchanged at the sprayed location even after 60 seconds ○: After 60 seconds, bubbles remain at the sprayed area, but they have become smaller ×: No bubbles remain in the sprayed area after 60 seconds According to the above evaluation criteria, ⊚ and ◯ were evaluated as having excellent foam adhesion (passed).

[0069] <Foam retention test> (1) Evaluation method The chlorine bleach composition was sprayed from a spray container (one push of a trigger sprayer) from a position 10 cm away horizontally from a position 15 cm high on a vertically standing plastic cutting board under the following spraying conditions, and foam of the chlorine bleach composition was adhered to the surface of the cutting board. The spraying conditions were as follows: the amount of the chlorine bleach composition sprayed from the spray container was 0.7 to 0.9 g, and the area of ​​the foam immediately after spraying was 6.0 to 18.0 cm. 2 The measurement environment was atmospheric pressure and a room temperature of 25°C. The foam retention was evaluated according to the following evaluation criteria. In the evaluation criteria below, ○ was evaluated as having excellent foam retention (passed). (2) Evaluation criteria ○: Stays up to 15cm below the surface even after 60 seconds without dripping ×: Dripping down to 15cm within 60 seconds

[0070] <Storage stability test> Evaluation method The remaining percentage of available chlorine after storing the chlorine bleach composition at 50°C for 1 week was calculated using the following formula, and the storage stability was evaluated according to the following criteria. (1) Evaluation criteria Calculation formula: Available chlorine remaining rate (%) = Available chlorine concentration in the composition after storage / Available chlorine concentration in the composition before storage × 100 ○: Available chlorine remaining rate is 90% or more △: Available chlorine remaining rate is less than 80-90% ×: Available chlorine remaining rate is less than 80% According to the above evaluation criteria, ◯ was evaluated as having excellent storage stability (passed).

[0071] [Table 1]

[0072] [Table 2]

[0073] [Table 3]

[0074] Table 4

[0075] Table 5

Claims

1. (A) 0.1 to 5.0 mass% of hypochlorite as component, (B) 0.5 to 2.0 mass% of an amine oxide having an alkyl chain with 8 to 12 carbon atoms as a component; 0.1 to 1.0 mass% of one or more compounds selected from alkyl sulfate ester salts, alkyl ether sulfate ester salts, and fatty acid salts as component (C), (D) 0.1 to 2.0 mass% of an alkali metal hydroxide as a component; Contains A chlorine bleach composition, wherein the mass ratio (B) / (C) of the component (B) to the component (C) is in the range of 2.0 to 5.

0.

2. 2. The chlorine bleach composition according to claim 1, wherein the content of the component (B) is 60% by mass or more, based on the total mass (100% by mass) of all surfactants contained in the chlorine bleach composition.

3. the component (B) contains one or more compounds selected from octyldimethylamine oxide and decyldimethylamine oxide, 3. The chlorine bleach composition according to claim 1, wherein the total content of octyldimethylamine oxide and decyldimethylamine oxide in component (B) is 70 mass% or more.

4. 3. The chlorine bleach composition according to claim 1, wherein the total content of the component (B) and the component (C) is 0.5 to 3.0% by mass.

5. The chlorine bleach composition according to claim 1 or 2, further comprising a silicate as component (E).

6. 3. The chlorine bleach composition according to claim 1 or 2, wherein, under the following spraying conditions, when the chlorine bleach composition is sprayed from a spray container from a position 10 cm horizontally away from a position 15 cm high of a plastic cutting board placed upright, and foam of the chlorine bleach composition is deposited on the surface of the cutting board, the area of ​​the foam on the cutting board 60 seconds after spraying is at least 1.2 times larger than the area of ​​the foam on the cutting board immediately after spraying. (Spraying conditions) The amount of the chlorine bleach composition sprayed from the spray container is 0.5 to 1.5 g, and the area of ​​the foam immediately after spraying is 5.0 to 20.0 cm. 2 The range is as follows. The measurement environment is atmospheric pressure and a room temperature of 25°C.

7. A chlorine bleach in a spray container, which is obtained by filling the chlorine bleach composition according to claim 1 or 2 in a spray container.

8. A method for cleaning a hard surface, comprising the steps of spraying the chlorine bleach composition according to claim 1 or 2 in the form of foam from a spray container and allowing the foam of the chlorine bleach composition to adhere to the hard surface.

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