Foamable detergent and method for use thereof

Abstract

To provide a foamable detergent with increased foaming levels and a method for use thereof, specifically, a foamable detergent that increases foaming levels without increasing the total usage of the foamable detergent and a method for use thereof.SOLUTION: The present invention relates to a foaming detergent that includes a combination of a tablet containing a foaming agent and powder containing a foaming agent, a method of producing the foaming detergent, and a method of cleaning an object using the foaming detergent.SELECTED DRAWING: None

Description

[Technical field]

[0001] The present invention relates to a foaming detergent that can be suitably used for cleaning hard surfaces around water, such as kitchens, washrooms, and toilets, that have water pools or drain pipes, and a method for using the same. [Background technology]

[0002] Foaming detergent compositions containing bleach, surfactant, etc. are used to clean hard surfaces around water bodies having water pools or drainage pipes in kitchens, washrooms, toilets, etc. Such foaming detergent compositions foam when they come into contact with water, and the detergent components such as bleach and surfactant spread over the objects to be cleaned together with the foam, thereby exerting a cleaning effect. Conventionally, in order to efficiently remove dirt using a foamable detergent composition, studies have been conducted mainly focusing on the formulation of the foamable detergent composition from the viewpoint of improving the bleaching effect and increasing the amount of foaming (see, for example, Patent Document 1 and Patent Document 2). For example, in the foamable detergent composition, it has been considered to increase the amount of carbonates and the like that are sources of carbon dioxide gas as much as possible. However, in order to increase the amount of foaming of carbon dioxide gas and the like, it is necessary to make the aqueous solution acidic, and therefore it is necessary to increase the amount of acids such as organic acids in addition to the amount of carbonates and the like. In addition, in order to improve the cleaning effect, it is necessary to add detergent components such as bleaches and surfactants. In other words, in order to achieve both foaming power and cleaning effect, it was necessary to add various compounds other than the foaming components to the foamable detergent composition. Therefore, in order to increase the amount of foaming, the total amount of the foamable detergent composition used is increased, which results in excessive use of components that are not directly related to the amount of foaming, resulting in a problem of economic inefficiency.

[0003] As described above, conventional attempts to increase the amount of foam by focusing on optimizing the formulation composition have had limitations, and therefore there has been a demand for a foaming detergent and a method for using the same that can increase the amount of foam without increasing the total amount of foaming detergent formulated. [Prior art documents] [Patent documents]

[0004] [Patent Document 1] JP 2018-024875 A [Patent Document 2] JP 2008-013611 A Summary of the Invention [Problem to be solved by the invention]

[0005] The present invention aims to provide a foaming detergent with an increased foaming amount and a method for using the same. Specifically, the present invention aims to provide a foaming detergent that increases the foaming amount without increasing the total amount of foaming detergent used, and a method for using the same. [Means for solving the problem]

[0006] In view of the problems of the prior art, the present inventors have intensively studied techniques for increasing the amount of foaming, focusing on the formulation and method of use of the detergent composition, and have found that the amount of foaming is increased by using a foaming detergent that combines a tablet containing a foaming agent and a powder containing a foaming agent, compared to the case where a powder detergent containing a foaming agent is used alone. Based on this finding, the present inventors have further studied and completed the present invention. The present invention relates to the following foaming detergent and its method of use.

[0007] Item 1. A foaming detergent comprising a combination of a tablet containing a foaming agent and a powder containing a foaming agent.

[0008] Item 2. The foaming detergent according to Item 1, wherein the mass ratio of tablets to powder (tablets / powder) is 0.14 to 7.

[0009] Item 3. The foaming detergent according to item 1 or 2, wherein the total content of the foaming agent contained in the tablet and the powder is 10% by mass to 99% by mass.

[0010] Item 4. The foaming cleaner according to any one of Items 1 to 3, wherein the foaming agent is one or more selected from the group consisting of foaming agents that generate oxygen and foaming agents that generate carbon dioxide.

[0011] Item 5. The tablet and powder each contain, identically or differently, either or both of a foaming agent consisting of a hypochlorous acid source and a hydrogen peroxide source, and a foaming agent consisting of an organic acid and a carbonate. The foaming cleaner according to any one of items 1 to 4.

[0012] Item 6. The foaming cleaner according to any one of Items 1 to 5, wherein the tablet and the powder each contain a foaming agent consisting of a hypochlorous acid source and a hydrogen peroxide source, which may be the same or different.

[0013] Item 7. The foaming cleaner according to Item 5 or 6, wherein the hypochlorous acid source is at least one selected from the group consisting of halogenated isocyanuric acid, halogenated hydantoin, and calcium hypochlorite, and the hydrogen peroxide source is at least one selected from the group consisting of sodium percarbonate, sodium perborate, and organic peroxide.

[0014] Item 8. The foaming detergent according to any one of items 1 to 7, comprising a mixture of a tablet containing a foaming agent and a powder containing a foaming agent.

[0015] Item 9. The foaming detergent according to any one of Items 1 to 7, wherein a tablet containing a foaming agent and a powder containing a foaming agent are contained in different containers.

[0016] Item 10. A method for producing the foaming detergent according to item 8, comprising mixing a tablet containing a foaming agent and a powder containing a foaming agent.

[0017] Item 11. A method for producing the foaming detergent according to item 9, comprising the steps of placing a tablet containing a foaming agent and a powder containing a foaming agent in different containers.

[0018] Item 12. A method for using a foaming detergent, comprising the step of contacting a powder containing a foaming agent and a tablet containing a foaming agent contained in the foaming detergent according to any one of items 1 to 9 with an object to be cleaned having water attached thereto (introducing the powder into an object to be cleaned having a puddle of water).

[0019] Item 13. A method for cleaning an object to be cleaned, comprising the step of contacting a powder containing a foaming agent and a tablet containing a foaming agent contained in the foaming cleaner according to any one of items 1 to 9 with an object to be cleaned having water attached thereto (introducing the powder into an object to be cleaned having a puddle of water). Effect of the Invention

[0020] The present invention is characterized by a foaming detergent that combines a tablet containing a foaming agent and a powder containing a foaming agent. By contacting this foaming detergent with water, the amount of foaming is dramatically increased compared to conventional foaming detergents consisting of only powder and foaming detergents consisting of only tablets. This effect is clear from the results of examples and comparative examples in which foaming detergents consisting of a combination of a tablet and a powder, a foaming detergent consisting of only powder, and a foaming detergent consisting of only tablets, all of which have the same composition (ingredients and content), are evaluated.

[0021] The foaming detergent of the present invention can be suitably used for cleaning hard surfaces around water such as kitchens, washrooms, baths, toilets, etc., that have water pools, drains, or drain pipes.

[0022] In this specification, "the amount of foaming is increased" means, when compared with a foaming detergent consisting of only a powder or only a tablet, that the maximum amount of foaming increases within the period from when the foaming detergent is added to water and foaming begins until the foam generated a specified time later decreases, or that the amount of foaming increases after the foaming detergent is added to water and foaming begins and the specified time required for cleaning has elapsed.

[0023] The foaming cleaner of the present invention has an increased maximum foaming amount, which allows the foam containing the detergent components generated by foaming to reach a wide area, such as the water surface of puddles, the area around the drain, and the inside of drain pipes where dirt is attached, thereby enabling efficient cleaning. In addition, the foaming amount increases after a certain time required for cleaning has elapsed since foaming started, allowing the foam containing the foaming detergent to act on the object to be cleaned for a long period of time, thereby providing a high cleaning effect. In other words, the foaming amount can be maintained for the time required to clean the object to be cleaned. Furthermore, it is more preferable if the maximum foaming amount increases during the period from when the foaming detergent is added to water and foaming begins until the foam generated a predetermined time later decreases, and if the foaming amount increases after the predetermined time required for cleaning has elapsed from when the foaming detergent is added to water and foaming begins, since this provides both the effect of being able to efficiently clean a wide area of ​​the object to be cleaned and the effect of foam containing the detergent components being able to act on the object to be cleaned for a long period of time.

[0024] In general, when comparing a powder foaming detergent with a tablet foaming detergent, if the compositions (ingredients and their contents) of both are the same, the powder dissolves in water and foams more quickly than the tablet, resulting in a higher maximum foaming amount. On the other hand, the tablet has a smaller surface area per unit mass in contact with water than the powder, so it dissolves more slowly and usually has a lower maximum foaming amount than the powder. Therefore, it was predicted that the maximum foaming amount of a foaming detergent that combines powder and tablet would be about halfway between the maximum foaming amount when only powder is used and the maximum foaming amount when only tablet is used. However, contrary to this prediction, it was confirmed that the maximum foaming amount was increased by using a foaming detergent that combines powder and tablet compared to a foaming detergent that is only powder, and that the foaming amount after a certain time had passed was also increased. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0025] (Foaming detergent) The foaming detergent of the present invention can be suitably used for cleaning hard surfaces around water such as kitchens, washrooms, baths, toilets, etc., that have water pools, drains, or drain pipes.

[0026] In this specification, the term "foaming detergent" refers to a combination of a tablet containing a foaming agent and a powder containing a foaming agent, and unless otherwise specified, includes both a form in which the tablet and powder are mixed, and a form in which the tablet and powder are separate and the two are lumped together so that they can be combined when used, as well as a form that contains ingredients other than the tablet and powder. The foaming detergent of the present invention is used in combination with the tablet and the powder, so that the foaming amount can be increased without increasing the total amount of the detergent composition used. The tablet and the powder used in the present invention are each a composition containing a plurality of components, and the tablet and the powder may be prepared separately. The powder can be prepared by mixing multiple powder raw materials in a mixer, etc. The tablets can be formed by blending multiple components and then subjecting them to a compression process (hereinafter sometimes referred to as tableting). The foaming detergent of the present invention is a combination of tablets and powder, so it is not necessary to use only tablets for washing. The amount of foam produced is increased compared to the cleaning agent and the powder only cleaning agent. The tablets and powder may be of the same or different composition. In addition, the use of a tablet and a powder in combination includes any of the following: putting the tablet in water first and then putting the powder in, putting the powder in water first and then putting the tablet in, and putting the tablet and the powder in water at the same time. A foaming detergent in which a mixture of the tablet and the powder is packaged in the same packaging container is preferred because the tablet and the powder can be used at the same time during cleaning, making the operation easy.

[0027] (tablet) In this specification, the tablet refers to a molded product obtained by compressing tablet components containing a foaming agent by tableting. The form of the tablet components before tableting may be any form suitable for tableting, such as powder, granules, briquettes, etc. For tableting, a widely known tableting machine such as a rotary tableting machine or a reciprocating tableting machine can be used. From the viewpoints of productivity and moldability, the tableting pressure is preferably about 5 to 100 MPa. From the viewpoint of shape stability, the hardness of the obtained tablet is usually preferably about 200 to 800 N. The shape of the tablet is not particularly limited. For example, it may be a cylindrical shape, a bale shape, a go stone shape, a polygonal prism shape including a triangular shape, a square shape, a star shape, etc., or a corner shape. From the viewpoint of ease of processing and handling, a cylindrical shape is preferable.

[0028] The size of the tablet used in the present invention is preferably within a predetermined range in terms of ease of processing, strength, shape retention, ease of handling, etc., such that the length of the longest line segment of the tablet bottom surface (for example, the diameter when the shape of the tablet bottom surface is a circle, the length of the longest side when the shape of the tablet bottom surface is a triangle, and the length of the diagonal when the shape of the tablet bottom surface is a rectangle) and the total length of the tablet height. Here, the total length of the longest line segment of the tablet bottom surface and the tablet height means the sum of the diameter of the circle of the tablet bottom surface and the tablet height when the tablet is cylindrical, the sum of the length of the longest side of the triangle of the tablet bottom surface and the tablet height when the tablet is a triangular prism, the sum of the length of the diagonal of the rectangle of the tablet bottom surface and the tablet height when the tablet is a square prism (the largest combination of the sum of the diagonal of the bottom surface and the height when the square prism is a square prism other than a rectangular parallelepiped), and the sum of the maximum vertical thickness and the maximum horizontal width when the tablet is a go stone or rice bale shape. In the present invention, the total length of the longest line segment of the bottom surface of the tablet and the tablet height is preferably greater than the average particle size of the powder. From the viewpoint of ease of processing and ease of handling, the total length of the longest line segment of the bottom surface of the tablet and the tablet height is preferably 5 mm to 400 mm, more preferably 10 mm to 200 mm. In addition, the tablet can be made into a composition by combining and blending various compounds useful for cleaning in addition to the foaming agent.

[0029] When the tablet is cylindrical, the diameter of the bottom surface of the cylinder is usually 3 to 200 mm, preferably 5 to 100 mm, and more preferably 10 to 50 mm. The height of the cylinder is usually 3 to 200 mm, preferably 5 to 100 mm, and more preferably 10 to 50 mm. The total length of the diameter of the bottom surface of the tablet and the height of the tablet is usually 6 to 400 mm, preferably 10 to 200 mm, and more preferably 20 to 100 mm. Furthermore, when the tablet is cylindrical, if the value obtained by dividing the diameter (mm) of the tablet by the height (mm) of the tablet is within a specified range, the tablet is less likely to crack or chip, so the value obtained by dividing the diameter (mm) of the tablet by the height (mm) of the tablet is preferably 1 to 10, more preferably 1.5 to 6, and even more preferably 1.5 to 3.5.

[0030] (powder) In this specification, powder means a collection of particles containing a foaming agent. The shape of the particles is not particularly limited, and examples include amorphous, spherical, spheroidal, etc. The powder of the present invention includes, for example, a powder that has been processed into a granular form by secondary processing, such as when fine powder is processed by a conventionally known method such as fluidized bed granulation, or when it is compressed and molded by a conventionally known method such as a chilsonator and then pulverized. The case where the raw material compounds are mixed in advance and then subjected to secondary processing such as granulation may be included. Alternatively, the raw materials that have been subjected to secondary processing such as granulation in advance may be mixed to prepare the powder. In addition to the foaming agent, the powder may be prepared by combining and blending particles of various compounds that are useful for cleaning.

[0031] The average particle size of the powder is, for example, preferably 1 to 5000 μm, more preferably 10 to 3000 μm, and even more preferably 100 to 1500 μm. When the average particle size is 5000 μm or less, the particles are not too large and are easy to handle, when it is 3000 μm or less, the handleability is better, and when it is 1500 μm or less, the handleability is even better. When the average particle size is 5000 μm or less, it is easy to use because it can be directly put into a drain with a small opening when used for direct washing or bleaching, when it is 3000 μm or less, it is easier to use, and when it is 1500 μm or less, it is even easier to use. On the other hand, when the average particle size is 1 μm or more, it is easy to use because it is less likely to be scattered by a slight wind or static electricity when handled, when it is 10 μm or more, it is easier to use, and when it is 100 μm or more, it is even easier to use.

[0032] The average particle size of a powder can be measured as follows. Using 13 sieves with openings of 75 μm, 106 μm, 150 μm, 250 μm, 425 μm, 600 μm, 710 μm, 850 μm, 1000 μm, 1180 μm, 1400 μm, 1700 μm, and 2000 μm and a tray, stack the sieves on the tray so that the sieves with the larger openings are on the top. Put the sample on top of the top sieve with an opening of 2000 μm, and stack the sieves on the tray so that the sieves with the larger openings are on the top. Place the stacked sieves in a sieve shaker and shake for 10 minutes to perform sieving. The sieve shaker may be used at a vibration frequency of 3600 times / min and an amplitude of 1 mm. The particle size distribution may be measured using the method and tools (sieves) described in JIS Z 8815 and JIS Z 8801.

[0033] As a sieve shaker, for example, the "AS200CONTROL" manufactured by Recce can be used, but is not limited to this. If a sieve shaker cannot be used, support the stacked sieves with one hand and tap the sieve frame at a rate of about 120 times per minute. Occasionally, place the sieve horizontally and tap the sieve frame strongly several times. Repeat this operation to thoroughly sieve. If the sample is aggregated or fine powder is attached to the inside or back of the sieve, gently loosen the sample with a brush and perform the sieving operation again. The sample that passes through the sieve mesh is called the undersieve. The undersieve refers to the test sample that passes through the sieve mesh before the sieving is completed.

[0034] If the sample contains particles with a diameter greater than 2000 μm, multiple sieves with gradually different mesh sizes greater than 2000 μm may be added. For example, sieves with mesh sizes of 2360 μm, 2800 μm, 3350 μm, 4000 μm, 4750 μm, 5600 μm, or more may be added. If the sample contains a large number of particles with a diameter of 75 μm or less, multiple sieves with gradually different mesh sizes less than 75 μm may be added. For example, sieves with mesh sizes of 63 μm, 53 μm, 45 μm, 38 μm, or less may be added. Sieves with other mesh sizes may also be selected.

[0035] The mass of the particles remaining on each sieve and on the tray is measured, and the mass percentage (%) of the particles on each sieve is calculated. The mass percentages of the particles on the sieves with the smallest openings are added together, starting from the tray, to calculate the total. If the opening of the first sieve where the total mass percentage is 50% or more is aμm, and the opening of the sieve one step larger than aμm is bμm, the total mass percentage from the tray to the sieve with an opening of aμm is c%, and the mass percentage on the sieve with an opening of aμm is d%, the average particle size can be calculated from the following formula 1.

[0036] (Formula 1) JPEG2024032791000001.jpg2649

[0037] The mass ratio of the powder and the tablet contained in the foaming detergent of the present invention is preferably within a predetermined range.For example, when the foaming detergent is in the form of a mixture of powder and tablet, it is preferable that the mass ratio of the tablet to the powder in the mixture is within a predetermined range.In addition, when the foaming detergent is in the form of a powder and tablet separated, it is preferable that the mass ratio of the tablet to the powder to be added is within a predetermined range. Specifically, the mass ratio of tablets to powder in the foaming detergent (the value obtained by dividing the mass of tablets by the mass of powder; tablets / powder) is preferably 0.14 to 7, more preferably 0.14 to 5, and even more preferably 0.3 to 2.5. If the mass ratio of tablets to powder is 0.14 to 7, an excellent effect of increasing the amount of foaming can be expected, if it is 0.14 to 5, an even better effect of increasing the amount of foaming can be expected, and if it is 0.3 to 2.5, an even better effect of increasing the amount of foaming can be expected.

[0038] The foaming detergent may contain one or more tablets. As described above, it is preferable to adjust the mass ratio of the tablets to the powder contained in the foaming detergent to be within a desired range, and one or more tablets may be used within that range. The number of tablets may be adjusted by using tablets whose mass has been adjusted in advance.

[0039] (Foaming agent) Both the tablet and the powder contained in the foaming detergent of the present invention contain a foaming agent. The foaming agent is capable of generating gas when added to water. Examples of the foaming agent include a foaming agent that generates carbon dioxide gas, a foaming agent that generates oxygen gas, or a mixture thereof. Either or both of a foaming agent that generates carbon dioxide gas and a foaming agent that generates oxygen gas are blended in the tablet and the powder, respectively. In order to obtain a greater effect of increasing the amount of foaming, it is preferable that both the tablet and the powder contained in the foaming detergent of the present invention contain a foaming agent that generates oxygen gas.

[0040] In this specification, when simply referring to the "amount of foaming agent," it refers to the total amount of foaming agent that generates carbon dioxide gas and foaming agent that generates oxygen gas in the foaming detergent. When a distinction is made between a foaming agent that generates carbon dioxide gas and a foaming agent that generates oxygen gas, the type of foaming agent is specified.

[0041] The foaming agent content of the tablet and powder in the foaming detergent is preferably 10% by mass or more, more preferably 20% by mass or more, and even more preferably 50% by mass or more, based on the total mass of the tablet and powder. By making it 10% by mass or more, a sufficient amount of gas is generated, so that the foaming amount is easily increased by combining the tablet and powder, and by making it 20% by mass or more, the foaming amount is easily increased further, and by making it 50% by mass or more, the foaming amount is easily increased further. In addition, since other components are blended into the foaming detergent to enhance the cleaning effect, the foaming agent content is preferably 99% by mass or less, more preferably 90% by mass or less, and even more preferably 85% by mass or less, based on the total mass of the tablet and powder. A foaming agent that generates carbon dioxide gas and a foaming agent that generates oxygen gas may be blended in combination in the foaming detergent.

[0042] (Foaming agent that generates carbon dioxide gas) Examples of foaming agents that generate carbon dioxide gas include a combination of a carbonate and an acid. The carbonate is preferably at least one selected from the group consisting of sodium carbonate (hereinafter sometimes referred to as soda ash), sodium hydrogen carbonate (hereinafter sometimes referred to as baking soda), potassium carbonate, potassium hydrogen carbonate, ammonium carbonate, sodium sesquicarbonate, and mixtures thereof, and more preferably at least one selected from the group consisting of sodium carbonate, sodium hydrogen carbonate, and mixtures thereof, because of their easy availability and low cost. These carbonates generate carbonate ions when dissolved in water, and under acidic conditions, the carbonate ions become carbon dioxide and foam. Acids for making the pH acidic include inorganic acids and organic acids. Inorganic acids are not particularly limited as long as they are acidic when dissolved in water, such as hydrochloric acid, sulfuric acid, nitric acid, and acidic salt of glomerate (sodium sulfate). Among them, in order to be blended with other detergent components as a foaming detergent, those that are solid at room temperature and normal pressure are suitable, such as acidic salt of glomerate (sodium sulfate). Organic acids are not particularly limited as long as they are acidic when dissolved in water. For example, one or more acids selected from the group consisting of oxalic acid, malonic acid, succinic acid, fumaric acid, maleic acid, D-tartaric acid, L-tartaric acid, D-malic acid, L-malic acid, D-aspartic acid, L-aspartic acid, glutaric acid, D-glutamic acid, L-glutamic acid, formic acid, acetic acid, propionic acid, butyric acid, valeric acid, hexanoic acid, heptanoic acid, octanoic acid, nonanoic acid, decanoic acid, undecanoic acid, dodecanoic acid, myristic acid, stearic acid, palmitic acid, citric acid, and mixtures thereof may be mentioned. As the organic acid, one or more selected from oxalic acid, malonic acid, succinic acid, fumaric acid, maleic acid, D-tartaric acid, L-tartaric acid, D-malic acid, L-malic acid, D-aspartic acid, L-aspartic acid, glutaric acid, D-glutamic acid, L-glutamic acid, citric acid, and mixtures thereof are preferred because they are solid at room temperature and normal pressure and easy to handle. From the viewpoint of excellent blend stability with a hypochlorous acid generating source (chlorine bleaching agent) such as sodium dichloroisocyanurate, which is an oxidizing agent, the acid is more preferably one or more selected from succinic acid, fumaric acid, and a mixture thereof.

[0043] When the powder and / or tablet contained in the foaming detergent of the present invention contains a foaming agent that generates carbon dioxide gas, the compounding ratio of acid to carbonate (acid / carbonate) is preferably 0.5 to 1.4 in terms of reaction equivalent ratio in order to foam efficiently, more preferably 0.7 to 1.4 in order to foam more efficiently, and more preferably 0.7 to 1.3 in order to foam even more efficiently. Here, the reaction equivalent ratio is the ratio of the reaction equivalent of organic acid to the reaction equivalent of carbonate, and the reaction equivalents of carbonate and organic acid are calculated by the following mathematical formula 2.

[0044] (Formula 2) Reaction equivalent = (100 g x blending ratio (mass%)) / (1 gram equivalent) Here, 1 gram equivalent is calculated by 1 gram equivalent = (molecular weight) / (valence of acid or base). Note that valence means the valence as an acid or the valence as a base.

[0045] In this specification, "containing a foaming agent that generates carbon dioxide gas" means containing an acid (particularly an organic acid) and a carbonate, and the amount of foaming agent that generates carbon dioxide gas means the total amount of organic acid and carbonate in the foaming detergent.

[0046] The blending ratio of the foaming agent that generates carbon dioxide gas is preferably 10 to 99 mass %, more preferably 20 to 90 mass %, and even more preferably 30 to 80 mass %, based on the total mass of the tablet and powder (in the foaming detergent).

[0047] (Foaming agent that generates oxygen gas) As a foaming agent that generates oxygen gas, an oxidizing agent (hereinafter, when the term "oxidizing agent" is used in this specification, (Excluding compounds that are hydrogen peroxide generating sources.) may be used in combination with compounds that are hydrogen peroxide generating sources. It is preferable to use a compound that is a hypochlorous acid source as an oxidizing agent, and for example, one or more selected from the group consisting of trichloroisocyanuric acid, sodium dichloroisocyanurate, sodium dichloroisocyanurate hydrate, potassium dichloroisocyanurate, dichlorohydantoin, chlorobromohydantoin, dibromohydantoin, calcium hypochlorite, and mixtures thereof are preferable, and from the viewpoint of solubility in water and handling, one or more selected from the group consisting of sodium dichloroisocyanurate, sodium dichloroisocyanurate hydrate, and mixtures thereof are preferable. In addition, potassium monopersulfate double salt and the like can be used as an oxidizing agent other than the compound that is a hypochlorous acid source. The compound that serves as a hydrogen peroxide generation source is preferably, for example, one or more selected from the group consisting of sodium percarbonate, sodium perborate, organic peroxides such as peracetic acid and benzoic acid peroxide, and mixtures thereof. From the viewpoints of excellent blend stability, good solubility in water, ease of availability, and ease of handling, one or more selected from the group consisting of sodium percarbonate, sodium perborate, and mixtures thereof are preferred. The tablet and the powder may have the same composition or different compositions.

[0048] By using a combination of an oxidizing agent and a compound that is a source of hydrogen peroxide generation, it acts as a foaming agent by generating oxygen gas. For example, 1 mole of sodium dichloroisocyanurate, which is an oxidizing agent and a source of hypochlorous acid, generates 2 moles of hypochlorous acid when dissolved in water. On the other hand, for example, 1 mole of sodium percarbonate, which is a source of hydrogen peroxide, generates 1.5 moles of hydrogen peroxide when dissolved in water, since 1 mole of sodium carbonate is added with 1.5 moles of hydrogen peroxide in theory. In water, hypochlorous acid and hydrogen peroxide generate hydrochloric acid, water, and oxygen according to the following reaction formula (I). That is, 4 moles of sodium percarbonate are required to obtain 6 moles of hydrogen peroxide equivalent to 6 moles of hypochlorous acid generated from 3 moles of sodium dichloroisocyanurate. HClO+H2O2→ HCl+H2O+O2···(I) The molecular weight of sodium dichloroisocyanurate is 220, and the molecular weight of sodium percarbonate, which is calculated to have 1.5 moles of hydrogen peroxide added to 1 mole of sodium carbonate, is 157, so 4 moles (628 g) of sodium percarbonate are required to release hydrogen peroxide so that it reacts exactly with hypochlorous acid generated from 3 moles (660 g) of sodium dichloroisocyanurate. In this case, the mass ratio of sodium dichloroisocyanurate to sodium percarbonate to obtain hypochlorous acid and hydrogen peroxide that react exactly can be considered to be 1.05:1. Note that hypochlorous acid can take the form of hypochlorite ions or chlorine gas in water depending on the influence of pH, etc., but it can react with hydrogen peroxide in either form.

[0049] When both the oxidizing agent and the compound serving as a hydrogen peroxide generating source are mixed in a ratio that causes the reaction shown in formula (I) without excess or deficiency, the amount of the foaming agent is equal to the total amount of the oxidizing agent and the compound serving as a hydrogen peroxide generating source. On the other hand, when either the oxidizing agent or the compound serving as a hydrogen peroxide generating source is mixed in an amount that exceeds the amount required for the reaction without excess or deficiency, the excess amount of the oxidizing agent or the compound serving as a hydrogen peroxide generating source acts as a bleaching agent. Therefore, in this specification, the amount of the foaming agent that generates oxygen gas refers to the total amount of the oxidizing agent and the compound serving as a hydrogen peroxide generating source within the range that causes the reaction without excess or deficiency, and the excess amount of the oxidizing agent or the compound serving as a hydrogen peroxide generating source is classified as a bleaching agent. Therefore, the same compound that is an oxidizing agent or a hydrogen peroxide generating source may be distinguished as a foaming agent or a bleaching agent.

[0050] Most commonly available sodium percarbonate contains 1.5 moles of hydrogen peroxide added to 1 mole of sodium carbonate. However, for safety reasons, there is sodium percarbonate that contains a higher ratio of sodium carbonate (a smaller amount of hydrogen peroxide added). In this specification, sodium percarbonate refers to sodium carbonate that is added to 1 mole of sodium carbonate. The term sodium percarbonate includes a mixture of sodium carbonate with and without added hydrogen peroxide.

[0051] In this specification, "containing a foaming agent that generates oxygen gas" means that both the hypochlorous acid source and the hydrogen peroxide source are contained, and "amount of foaming agent that generates oxygen gas" means the total amount of the hypochlorous acid source and the hydrogen peroxide source within the range in which the hypochlorous acid source and the hydrogen peroxide source react without excess or deficiency. The amount of the foaming agent does not include the amount of the hypochlorous acid source or the hydrogen peroxide source that does not contribute to the oxygen gas generating reaction.

[0052] The blending ratio of the foaming agent that generates oxygen gas is preferably 10 to 99 mass %, more preferably 15 to 95 mass %, and even more preferably 20 to 90 mass %, based on the total mass of the tablet and powder (in the foaming detergent).

[0053] (Other additives) The tablet and powder of the present invention can be a composition in which various compounds useful for cleaning are combined and mixed. In addition to the foaming agent, other additives such as bleaching agents, surfactants, chelating agents (metal ion collectors), organic polymers, fragrances, dyes, enzymes, and inorganic substances can be mixed into the tablet and powder of the present invention, as long as the effects of the present invention are not impaired. Not only solid additives but also liquid additives can be used. For example, liquid additives can be mixed in advance with porous inorganic powders such as zeolite, etc., to support the liquid components on the inorganic substances, and then mixed.

[0054] Examples of bleaching agents include chlorine-based bleaching agents that become a source of hypochlorous acid when dissolved in water, and oxygen-based bleaching agents that become a source of hydrogen peroxide when dissolved in water. Chlorine bleaching agents and oxygen bleaching agents are also used as foaming agents that generate oxygen gas, but the portion that is blended as a foaming agent in excess of the reaction equivalent acts as a bleaching agent. For example, when sodium dichloroisocyanurate and sodium percarbonate are used as foaming agents that generate oxygen gas, hypochlorous acid and hydrogen peroxide are generated when dissolved in water as described above, and these react to generate oxygen gas. At this time, if sodium dichloroisocyanurate is blended in an amount that exceeds the reaction equivalent, free hypochlorous acid remains in the aqueous solution after foaming, and the remaining hypochlorous acid acts as a bleaching agent. Also, if sodium percarbonate is blended in an amount that exceeds the reaction equivalent, free hydrogen peroxide remains in the aqueous solution after foaming, and the remaining hydrogen peroxide acts as a bleaching agent. In this way, when a bleaching agent is blended, by blending either a hypochlorous acid source or a hydrogen peroxide source as a foaming agent that generates oxygen gas in an amount exceeding the reaction equivalent for oxygen gas generation, the component blended in excess can be used as a bleaching agent. When only a foaming agent that generates carbon dioxide is used, a bleaching agent can be added as needed.

[0055] Suitable chlorine bleaching agents include, for example, trichloroisocyanuric acid, sodium dichloroisocyanurate, sodium dichloroisocyanurate hydrate, potassium dichloroisocyanurate, dichlorohydantoin, chlorobromohydantoin, dibromohydantoin, calcium hypochlorite, etc. From the viewpoint of availability and ease of handling, trichloroisocyanuric acid, sodium dichloroisocyanurate, and sodium dichloroisocyanurate hydrate are preferred. These chlorine bleaching agents may be used alone or in combination of two or more. Examples of oxygen bleaching agents include organic peroxides such as sodium percarbonate, sodium perborate, and benzoic acid peroxide, and potassium monopersulfate double salts. From the viewpoints of availability and ease of handling, sodium percarbonate and sodium perborate are preferred. The agents may be used alone or in combination of two or more.

[0056] The available chlorine content (Cl2 equivalent value) of compounds (chlorine bleach, etc.) that generate hypochlorous acid as a bleaching agent can be calculated using iodometric titration. That is, the iodine liberated by the reaction of active chlorine with potassium iodide is titrated with an aqueous solution of sodium thiosulfate, and the available chlorine content is calculated using the following formula 3.

[0057] (Formula 3) Available chlorine content (%) = a × f × 0.35452 / b a: 0.1N sodium thiosulfate solution required for titration (ml) b: Sample (g) f: Factor of 0.1N sodium thiosulfate solution

[0058] The theoretical available chlorine content of trichloroisocyanuric acid is 91.5%, that of sodium dichloroisocyanurate is 64.5%, and that of sodium dichloroisocyanurate dihydrate is 55.4%.

[0059] The available oxygen content (O2 equivalent value) of oxygen-based bleaching agents such as hydrogen peroxide adducts typified by sodium percarbonate as a source of hydrogen peroxide can be calculated by the following formula 4 using iodometric titration. That is, the iodine liberated by the reaction of active oxygen with potassium iodide is titrated with an aqueous sodium thiosulfate solution, and the available oxygen content is calculated by the following formula 4. In order to accelerate the reaction between active oxygen and potassium iodide, a small amount of an aqueous ammonium molybdate solution adjusted to 1% by mass may be added.

[0060] (Formula 4) Available oxygen content (%) = a × f × 0.08000 / b a: 0.1N sodium thiosulfate solution required for titration (ml) b: Sample (g) f: Factor of 0.1N sodium thiosulfate solution In addition, the theoretical available oxygen content of sodium percarbonate, which is calculated by adding 1.5 moles of hydrogen peroxide to 1 mole of sodium carbonate, is 15.3%.

[0061] The blending ratio of bleach is 1 to 50 mass units (in foaming detergent) based on the total mass of tablets and powder. %, more preferably 2 to 40 mass %, and further preferably 5 to 35 mass %.

[0062] A surfactant can be blended into the tablets and powder of the foaming detergent. By blending a surfactant, the foam generated by foaming of the foaming detergent is sustained, making it easier to contact the detergent components with the object to be cleaned, and the surfactant itself contributes to removing dirt from the object to be cleaned. The surfactant may be blended only in the powder, only in the tablet, or both in the powder and the tablet. From the viewpoint of rapid dissolution and foaming, it is preferable to blend the surfactant only in the powder.

[0063] The surfactant content is expressed as mass % relative to the total mass of the tablet and powder. For example, when a surfactant is added to only either the powder or the tablet, the mass of the surfactant added to only either the powder or the tablet is divided by the total mass of the powder and the tablet, and multiplied by 100 to obtain the surfactant content (mass %). The surfactant content is preferably 0.1% by mass or more, more preferably 1% by mass or more, and even more preferably 2% by mass or more, based on the total mass of the tablet and powder. If it is 0.1% by mass or more, sufficient surfactant action is obtained and the amount of foaming is increased, so this is preferable, and if it is 1% by mass or more, If the content is 2% by mass or more, the amount of foaming is further increased, which is preferable.

[0064] If the amount of surfactant is too large, not only does it not contribute to foaming, but also limits the amount of other detergent components such as foaming agents. Therefore, the surfactant content is preferably 20% by mass or less, more preferably 10% by mass or less, and even more preferably 8% by mass or less, based on the total mass of the tablet and powder. If it is 20% by mass or less, it is preferable because the surfactant is not wasted, if it is 10% by mass or less, it is more preferable because more other detergent components can be blended without the surfactant being wasted, and if it is 8% by mass or less, it is even more preferable because even more other detergent components can be blended.

[0065] In addition, the surfactant may not be blended into the tablet or powder, but may be added separately to the water pool of the object to be cleaned. For example, the surfactant may be preliminarily added to the water pool that contacts the object to be cleaned, and then the foaming detergent may be added. In this case, the amount of the surfactant added separately may be in the same range as when the surfactant is blended into the tablet and / or powder. Examples of the surfactant include anionic surfactants, nonionic surfactants, cationic surfactants, amphoteric surfactants, etc., and one or more selected from these groups may be used. In this way, the foaming detergent of the present invention also includes a form in which a container containing the tablets and powder and a container containing other ingredients are combined together (for example, all of these are packaged together in a single package) so that the tablets, powder, and other ingredients (such as surfactants) can be used together for cleaning.

[0066] Examples of anionic surfactants that can be used in the present invention include fatty acid salts such as potassium oleate soap, potassium castor oil soap, partially hydrogenated sodium tallow fatty acid soap, and partially hydrogenated potassium tallow fatty acid soap; alkyl sulfate ester salts such as sodium lauryl sulfate, sodium higher alcohol sulfate, triethanolamine lauryl sulfate, and ammonium lauryl sulfate; alkyl benzene sulfonates such as sodium C12-C14 branched or linear alkyl benzene sulfonate; sulfonates such as sodium C14-C18 α-olefin sulfonate; alkyl naphthalene sulfonates such as sodium alkyl naphthalene sulfonate; and dialkyl sulfosuccinates. dialkyl sulfosuccinates such as sodium; alkyl diaryl ether sulfonates such as sodium alkyl diphenyl ether disulfonate; alkyl phosphates such as potassium alkyl phosphate; naphthalenesulfonic acid formalin condensates such as the sodium salt of β-naphthalenesulfonic acid formalin condensate; aromatic sulfonic acid formalin condensates such as the sodium salt of aromatic sulfonic acid formalin condensate; polyoxyethylene alkyl ether sulfate salts such as sodium polyoxyethylene lauryl ether sulfate; alkyl sulfosuccinates such as sodium alkyl sulfosuccinate; and mixtures thereof.

[0067] Examples of nonionic surfactants include polyoxyethylene alkyl ethers such as polyoxyethylene cetyl ether, polyoxyethylene stearyl ether, polyoxyethylene oleyl ether, and polyoxyethylene higher alcohol ether; sorbitan fatty acid esters such as sorbitan laurate, sorbitan palmitate, sorbitan stearate, and sorbitan oleate; polyoxyethylene sorbitan fatty acid esters such as polyoxyethylene sorbitan laurate, polyoxyethylene sorbitan palmitate, polyoxyethylene sorbitan stearate, and polyoxyethylene sorbitan oleate; polyethylene glycol fatty acid esters such as polyethylene glycol laurate, polyethylene glycol stearate, and polyethylene glycol oleate; polyoxyethylene alkyl amines such as polyoxyethylene laurylamine, polyoxyethylene stearylamine, and ethylenediamine-polyoxyethylene-polyoxypropylene block polymers; lauric acid monoethanolamide, lauric acid diethanolamide, and milliethanolamide. and mixtures thereof. The glycerin fatty acid esters may include, for example, one or more selected from the group consisting of alkyl alkanolamides such as stearic acid monoethanolamide, myristic acid diethanolamide, stearic acid monoethanolamide, stearic acid diethanolamide, coconut oil fatty acid monoethanolamide, and coconut oil fatty acid diethanolamide; glycerin fatty acid esters such as stearic acid monoglyceride, stearic acid diglyceride, palmitic acid monoglyceride, palmitic acid diglyceride, oleic acid monoglyceride, and oleic acid diglyceride; sucrose fatty acid esters; and mixtures thereof.

[0068] Examples of cationic surfactants include one or more selected from the group consisting of alkylamine salts such as coconut amine acetate and stearyl amine acetate; quaternary ammonium salts such as lauryl trimethyl ammonium salt, stearyl trimethyl ammonium salt, distearyl dimethyl ammonium salt, alkyl benzyl dimethyl ammonium salt, cetyl trimethyl ammonium salt, stearyl trimethyl ammonium salt, behenyl trimethyl ammonium salt, distearyl dimethyl ammonium salt, diisotetradecyl dimethyl ammonium salt, cetyl pyridinium chloride, benzethonium chloride, benzalkonium chloride, and didecyl dimethyl ammonium chloride; and mixtures thereof.

[0069] Examples of amphoteric surfactants include alkyl betaines such as lauryl betaine, stearyl betaine, and 2-alkyl-N-carboxymethyl-N-hydroxyethyl imidazolinium betaine; amine oxides such as lauryl dimethylamine oxide; and one or more selected from the group consisting of these.

[0070] The surfactant used in the present invention is preferably an anionic surfactant from the viewpoint of excellent blending stability with chlorine bleaching agents such as sodium dichloroisocyanurate. From the viewpoint of particularly excellent blending stability with chlorine bleaching agents, good foam retention when foamed, and fine foam, it is more preferable to use, for example, one or more selected from the group consisting of sodium linear alkylbenzene sulfonate, sodium α-olefin sulfonate, sodium alkyl sulfate, and mixtures thereof.

[0071] Examples of organic polymers include one or more selected from the group consisting of carrageenan, guar gum, locust bean gum, alginic acid, alkali metal salts of alginic acid; polysaccharides such as dextrin, xanthan gum, pectin, starch, or derivatives thereof; methylcellulose, carboxymethylcellulose, alkali metal salts of carboxymethylcellulose; ethylcellulose, hydroxypropylcellulose, hydroxyethylcellulose, other cellulose derivatives; and mixtures thereof. Alternatively, examples include one or more selected from the group consisting of polyvinyl alcohol, polyacrylamide, polyethylene glycol, polyacrylic acid, polymaleic acid, olefin-sodium maleic anhydride copolymer, acrylic acid-sodium maleic acid copolymer, diallyldimethylammonium-sodium acrylic acid copolymer, diallylmethylamine-sodium maleic acid copolymer, other synthetic polymer compounds, and mixtures thereof. A combination of multiple organic polymers may also be used.

[0072] Among organic polymers, polysaccharides are more preferred because they have an excellent effect of maintaining the foam generated by foaming for a long time. Among polysaccharides, carrageenan, guar gum, locust bean gum, and xanthan gum are preferred from the viewpoint of blending stability with chlorine bleach, and guar gum is more preferred. Polysaccharides may be blended in either tablet or powder, or in both. In view of rapid dissolution, it is preferred to blend only in powder. The blending ratio of the polysaccharide is preferably 0.01 to 2.5% by mass, more preferably 0.01 to 1.25% by mass, and still more preferably 0.01 to 0.25% by mass, based on the total mass of the tablet and powder. In order to prevent the viscosity of the water from becoming too high and to suppress a decrease in the amount of foaming when the foaming detergent is dissolved in water, the blending ratio of the polysaccharide is preferably 2.5% by mass or less based on the total mass of the tablet and the powder. If it is 2.5% by mass or less, the foam can be maintained for a long time while the foaming amount is unlikely to decrease, which is preferable, if it is 1.25% by mass or less, the foam can be maintained for a long time while the foaming amount is unlikely to decrease, and if it is 0.25% by mass or less, the foam can be maintained for a long time while the foaming amount is unlikely to decrease, which is even more preferable.

[0073] As the chelating agent, for example, one or more selected from the group consisting of amino carboxylates such as nitrilotriacetate, ethylenediaminetetraacetate, β-alanine diacetate, aspartic acid diacetate, methylglycine diacetate, iminodisuccinate, and the like, and hydrates thereof; hydroxyamino carboxylates such as serine diacetate, hydroxyiminodisuccinate, hydroxyethylethylenediaminetriacetate, dihydroxyethylglycine, and the like, and hydrates thereof; phosphono carboxylates such as tripolyphosphate, 1-diphosphonic acid, α-methylphosphonosuccinic acid, 2-phosphonobutane-1,2-dicarboxylic acid, and the like, alkali metal salts thereof, and hydrates thereof; polyacrylic acid and alkali metal salts thereof; glutamic acid diacetate and hydrates thereof; and mixtures thereof can be used. From the viewpoints of availability, ease of handling, and metal ion capture effect, one or more chelating agents selected from the group consisting of amino carboxylates, hydrates of amino carboxylates, hydroxyamino carboxylates, hydrates of hydroxyamino carboxylates, and mixtures thereof are preferred.

[0074] Examples of the dyes include Scarlet G Conc, Permanent Red GY, Seika First (registered trademark) Carmine 3870, Seika First Yellow 2200, Seika First Yellow 2700 (B) (all trade names, manufactured by Dainichi Seika Chemicals Co., Ltd.), Acid Blue 9, Direct Yellow 12 (all trade names, manufactured by Tokyo Chemical Industry Co., Ltd.), Phthalocyanine Blue, Riboflavin (all trade names, manufactured by Wako Pure Chemical Industries, Ltd.), Ultramarine Blue (all trade names, manufactured by Hayashi Pure Chemical Industries, Ltd.), etc. These dyes may be used alone or in combination of two or more kinds.

[0075] As the flavoring, any flavoring known in the art can be used.

[0076] As the enzyme, various enzymes useful for cleaning can be used.

[0077] Examples of inorganic substances (excluding carbonates) include silicates, sulfates, phosphates, acetates, alkali metal hydroxides, alkali metal chlorides, aluminum sulfates, siloxanes, clay minerals, and boron compounds.

[0078] Examples of silicates include alkali metal silicates such as sodium silicate, sodium metasilicate, sodium orthosilicate, and hydrates thereof; examples of sulfates include alkali metal sulfates such as sodium sulfate and potassium sulfate, and alkaline earth metal sulfates such as magnesium sulfate; examples of phosphates include alkali metal phosphates such as sodium dihydrogen phosphate, potassium dihydrogen phosphate, and sodium tripolyphosphate, and ammonium dihydrogen phosphate; examples of alkali metal hydroxides include sodium hydroxide, potassium hydroxide, and lithium hydroxide; examples of alkali metal chlorides include sodium chloride and potassium chloride; examples of clay minerals include hectorite; examples of boron compounds include one or more selected from the group consisting of boric acid, metaboric acid, boron oxide, and mixtures thereof. Examples of siloxanes include dimethylpolysiloxane. These silicates, sulfates, phosphates, alkali metal hydroxides, siloxanes, clay minerals, and boron compounds may be used alone or in combination of two or more.

[0079] The tablet of the present invention may contain a lubricant in order to improve the production efficiency during tableting. The lubricant that can be used is not particularly limited, but examples thereof include one or more selected from the group consisting of metal stearates such as magnesium stearate and calcium stearate, talc, and mixtures thereof.

[0080] (Preferable embodiment of foaming detergent) The foaming detergent of the present invention is a combination of a tablet containing a foaming agent and a powder containing a foaming agent. The mass ratio of the tablet to the powder (tablet / powder) is preferably 0.14 to 5, more preferably 0.3 to 2.5. The shape of the tablet is preferably cylindrical. The diameter of the bottom surface of the cylinder is preferably 5 to 40 mm, more preferably 20 to 30 mm. The height of the cylinder is preferably 5 to 40 mm, more preferably 10 to 30 mm. The total length of the diameter of the bottom surface of the tablet and the height of the tablet is preferably 10 to 50 mm, more preferably 20 to 45 mm. The value obtained by dividing the diameter of the bottom surface of the tablet by the height of the tablet is preferably 1 to 10, more preferably 1.5 to 3.5.

[0081] The blending ratio of the foaming agent contained in the tablet and powder is preferably 20% by mass to 90% by mass (in the foaming detergent) based on the total mass of the tablet and powder, more preferably 40% by mass to 90% by mass, and even more preferably 50% by mass to 85% by mass. The foaming agent contained in the tablet and powder preferably includes either or both of a foaming agent consisting of a hypochlorous acid source and a hydrogen peroxide source, and a foaming agent consisting of an organic acid and a carbonate. Of these, it is more preferable to include a foaming agent consisting of a hypochlorous acid source and a hydrogen peroxide source. As the hypochlorous acid source, halogenated isocyanuric acid or a salt thereof (particularly, sodium dichloroisocyanurate, potassium dichloroisocyanurate, etc.) is preferable, and sodium dichloroisocyanurate is more preferable. As the hydrogen peroxide source, sodium percarbonate, sodium perborate, etc. are preferable, and sodium percarbonate is more preferable. As the organic acid, oxalic acid, malonic acid, succinic acid, fumaric acid, citric acid, benzoic acid, etc. are preferable, and succinic acid and fumaric acid are more preferable. As the carbonate, sodium carbonate, sodium bicarbonate, etc. are preferable, and sodium bicarbonate is more preferable.

[0082] The foaming detergent tablet and / or powder of the present invention preferably further contains a bleaching agent and / or a surfactant. In particular, it is more preferable for the powder to contain a surfactant. The blending ratio of the bleaching agent is preferably 1 to 50 mass %, more preferably 5 to 20 mass %, based on the total mass of the tablet and powder (in the foaming detergent). As the bleaching agent, a chlorine-based bleaching agent is preferable, and among them, a halogenated isocyanuric acid or a salt thereof (particularly, sodium dichloroisocyanurate, potassium dichloroisocyanurate, etc.) is more preferable, and sodium dichloroisocyanurate is even more preferable. The blending ratio of the surfactant is preferably 0.1 to 10 mass %, more preferably 0.3 to 8 mass %, based on the total mass of the tablet and powder (in the foaming detergent). The surfactant is preferably an anionic surfactant, and among these, alkyl sulfate ester salts (such as sodium lauryl sulfate), alkylbenzene sulfonate salts, sulfonate salts (sodium α-olefin sulfonate), and the like are more preferred. The foaming detergent of the present invention preferably further contains other additives such as organic polymers (particularly polysaccharides, etc.), inorganic substances (particularly boron compounds, silicates, phosphates, etc.), and lubricants (magnesium stearate, etc.).

[0083] (How to use foaming detergent) The foaming detergent of the present invention can be poured into a cleaning object having a puddle to efficiently clean or bleach dirt on the cleaning object. Examples of the cleaning object include hard surfaces around water that are constantly in contact with water and tend to accumulate dirt. Specific examples include puddles, drains, and the inside of drain pipes in kitchens, washrooms, baths, toilets, etc.

[0084] The foaming detergent of the present invention produces a large amount of foam when added to water, and the foam containing the detergent components produced by foaming can reach a wide area, such as the water surface of the puddle, the area around the drain, and the inside of the drain pipe where dirt has adhered, allowing for efficient cleaning. For example, when the detergent composition of the present invention is poured into a toilet pool, foam rises up and reaches the periphery of the water surface (the inner wall of the toilet bowl), and the detergent components can be distributed to the bottom of the pool and inside the pipes at the back, and when the detergent composition of the present invention is poured into water in a pool below a kitchen drain, foam rises up and the detergent components can be distributed to the drain cover, inner wall, strainer, etc. Furthermore, the foaming detergent of the present invention can be used in places where water is not normally pooled, as long as it can be poured in combination with water. Examples include a drain in a bathroom, a bathtub, and a kitchen sink.

[0085] In order to effectively exert the effects of the foaming detergent of the present invention, the concentration of the foaming detergent in the aqueous solution after addition is preferably 1 to 500 g / L, more preferably 5 to 300 g / L, and even more preferably 10 to 100 g / L. If the concentration of the foaming detergent is 1 g / L or more, a sufficient amount of foaming can be obtained, so that the foaming amount is easily increased compared to when only powder is used, and if it is 5 g / L or more, the foaming amount is more easily increased, and if it is 10 g / L or more, the foaming amount is even more easily increased.

[0086] From the viewpoint of safety in use, the foaming detergent of the present invention preferably has a pH of about neutral when dissolved in water. The pH of the aqueous solution being about neutral means that when both the tablet and powder of the foaming detergent are dissolved in water, the pH of the 5% by mass aqueous solution (20 to 25°C) is 6 to 8. The foaming detergent of the present invention preferably has a pH of 6 to 8 in a 5% by mass aqueous solution, more preferably a pH of 6.5 to 7.5. When the pH of the 5% by mass aqueous solution is 6 or more, the risk of generating harmful gases such as chlorine gas is reduced, and when the pH is 6.5 or more, the risk is further reduced. On the other hand, when the pH is 8 or less, the risk of corrosiveness to the skin and eyes due to alkalinity is reduced, and when the pH is 7.5 or less, the risk is further reduced, and the foaming detergent can be used more safely. In addition, the foaming detergent can be used by acting on the object to be cleaned at a high concentration. Therefore, it is preferable to measure the pH of the aqueous solution of the foaming detergent using a 5% by mass aqueous solution having a relatively high concentration. EXAMPLES

[0087] The present invention will be specifically described below using examples and comparative examples, but the present invention is not limited to these. The raw materials and experimental equipment used in the examples and comparative examples are as follows.

[0088] [raw materials] Sodium dichloroisocyanurate: Shikoku Chemical Industry Co., Ltd., product name "Neochlor 60MG" (effective chlorine content 64.0%) Sodium percarbonate: Hodogaya Chemical Co., Ltd., product name "PC-A" (available oxygen content 11.8%) Sodium bicarbonate (sometimes called baking soda): manufactured by Tokuyama Corporation Succinic acid: Nippon Shokubai Co., Ltd. Boron oxide: manufactured by Nippon Denko Co., Ltd. Boric acid: manufactured by Nippon Denko Co., Ltd. Sodium lauryl sulfate: Kao Corporation, product name "EMAL 10PT" Sodium α-olefin sulfonate: Lion Specialty Chemicals, product name "Liporan PB800" Guar gum: Sansho Co., Ltd., product name "Neovisco G" Magnesium stearate: Taihei Chemical Industry Co., Ltd. ·Sodium alkylbenzene sulfonate: Lion Specialty Chemicals Co., Ltd. Company-made · Synthetic layered silicate: manufactured by BYK Japan, product name "Laponite" [device] [Sieve shaker] -Recce AS200CONTROL [Pot mixer] - AS ONE "PM-01" [pH meter] -Horiba Manufacturing "F-51" [pH electrode] - Horiba Manufacturing Co., Ltd. "9615S-10D"

[0089] [Method of manufacturing foaming detergent] The compositions mixed according to the tablet formulations shown in each table were compressed at a pressure of 20 MPa using a small hydraulic compressor (laboratory bender) with a hard chrome-plated steel mortar and pestle to obtain cylindrical tablets. As shown in each table, the tablets were prepared to have a diameter of 20.0 to 30.0 mm, a height of 9.50 to 18.5 mm, and a mass of 5.00 to 20.0 g. Similarly, each component was placed in a polyethylene bag so as to obtain the powder composition shown in each table, the bag was tightly sealed, and the entire bag was mixed by shaking vigorously by hand for more than 5 minutes to obtain a powder composition.

[0090] The average particle size of the powder was measured by the method described in the section (Powder) of this specification. All of the raw material powders used in the present invention had an average particle size within the range of 200 μm to 1000 μm.

[0091] The obtained tablets and powder were mixed in a predetermined mass ratio and packaged in an aluminum laminated film container to obtain a foaming detergent consisting of tablets and powder (Example). The obtained tablets were packaged in an aluminum laminated film container to obtain a foaming detergent consisting of tablets only (Comparative Example). The obtained powder was packaged in an aluminum laminated film container to obtain a foaming detergent consisting of powder only (Comparative Example).

[0092] [How to use foaming detergent] The aluminum laminate film containing the foaming detergent (Example) consisting of the tablets and powder obtained above was opened, and the tablets and powder were simultaneously poured into the water pool. In other words, by simultaneously pouring the tablets and powder that were packaged together into the water pool, it was compared with the case of pouring in a foaming detergent consisting only of powder.

[0093] For comparison, the same test was also carried out on the foaming detergents consisting of only tablets or only powder obtained above. Generally, foaming detergents consisting of only tablets usually generate less foam than foaming detergents consisting of only powder, so in the foaming amount measurement test, foaming detergents consisting of only powder were mainly evaluated.

[0094] [Foaming amount measurement test] The amount of foam of the foaming detergent was measured by putting 2000ml of tap water adjusted to 25℃ into a 5000ml resin measuring cylinder, pouring in 40.0g of the foaming detergent, reading the marks on the measuring cylinder at the point where the foam reached after 2, 5, 10, 20, 30, and 60 minutes, and subtracting the amount of water (2000ml) from that to determine the amount of foam (ml) after each time. The amount of foam 0 minutes after pouring was set to 0ml. The amount of foam after 60 minutes was set to the amount of foam after a specified time had passed (60 minutes later).

[0095] The amount of foam that was the greatest after 2, 5, 10, 20, 30, and 60 minutes was recorded as the maximum amount of foam (ml). If the foam volume after 0, 2, 5, 10, 20, 30, and 60 minutes is A, B, C, D, E, F, and G (ml), respectively, (a) = [(B + A) / 2] × (2-0) (b) = [(C + B) / 2] × (5 - 2) (c) = [(D + C) / 2] × (10-5) (d) = [(E + D) / 2] × (20 - 10) (e) = [(F + E) / 2] × (30 - 20) (f) = [(G + F) / 2] × (60 - 30) The average foam volume (ml) was calculated by dividing the total of (a)-(f) by 60.

[0096] The retention rate (%) after 30 minutes and the retention rate (%) after 60 minutes refer to the ratio of the foam volume retained to the maximum foam volume measured 30 minutes and 60 minutes after the maximum foam volume was reached. Retention rate after 30 minutes (%) = [(foam volume after 30 minutes) / (maximum foam volume)] x 100 Retention rate after 60 minutes (%) = [(foam volume after 60 minutes) / (maximum foam volume)] x 100

[0097] The maximum foam volume increase rate (%) means the ratio of the maximum foam volume of the foaming detergent of the present invention (Example) to the maximum foam volume of a foaming detergent consisting of powder only (Comparative Example). When the maximum foam volume increase rate exceeds 100%, the maximum foam volume is evaluated as being increased. Maximum foam volume increase rate (%)=[(maximum foam volume of Example) / (maximum foam volume of Comparative Example)]×100

[0098] The rate of increase (%) in the amount of foam after 60 minutes means the ratio of the amount of foam after 60 minutes of the foaming detergent of the present invention (Example) to the amount of foam after 60 minutes of the foaming detergent consisting only of powder (Comparative Example). When the rate of increase in the amount of foam after 60 minutes exceeds 100%, it is evaluated that the amount of foam after 60 minutes has increased. Increase rate of foam volume after 60 minutes (%)=[(foam volume after 60 minutes in Example) / (maximum foam volume after 60 minutes in Comparative Example)]×100

[0099] When the foaming detergent (Example) according to the present invention has an increased maximum foam volume or an increased foam volume after 60 minutes compared to a foaming detergent containing only powder, the foaming volume is evaluated as being increased. The greater the maximum foam volume, the wider the foam spreads over, allowing the detergent components to be spread over a wider area of ​​the object to be cleaned. Also, the greater the foam volume after 60 minutes means that the foam is maintained for a longer period of time. When the foaming detergent is added to water, the foam spreads over a wider area of ​​the object to be cleaned, and the foam is maintained for a long period of time, allowing the foam containing the detergent components to act on the object to be cleaned for a long period of time. It is preferable that the foaming detergent according to the present invention (Example) has both an increased maximum foam volume and an increased foam volume after 60 minutes, compared to a foaming detergent containing only powder (Comparative Example). Therefore, as a result of the foam volume measurement test, when only either the maximum foam volume or the foam volume after 60 minutes was increased compared to when a powder-only foaming detergent was used, the foam volume was deemed to have been increased and rated as "O", and when both the maximum foam volume and the foam volume after 60 minutes were increased, the foam volume was deemed to have been even greater and rated as "◎".

[0100] [pH measurement] A foaming detergent was dissolved in distilled water (ion-exchanged water may be used) at a concentration of 5% by mass relative to the mass of the water, and the solution was stirred for 30 minutes. After stirring, approximately 50 ml of the aqueous solution was transferred to a glass beaker and measured with a pH meter. Just before the measurement, a three-point calibration was performed using pH 4 standard solution, pH 7 standard solution, and pH 9 standard solution. The temperature of the 5% aqueous solution of foaming detergent at the time of measurement was kept between 20°C and 48°F. The temperature was 25°C.

[0101] (Examples 1 to 9, Comparative Examples 1 to 9) Tablets and powders containing a foaming agent that generates oxygen gas but does not contain a foaming agent that generates carbon dioxide gas were prepared according to the formulation shown in Tables 1 to 3, and the tablets and powders were mixed and packaged in an aluminum laminated film container to prepare foaming detergents. Using the foaming detergents prepared in Tables 1 to 3, the tablets and powders were simultaneously placed in a measuring cylinder containing tap water simulating a cleaning target, and the amount of foaming, etc. were measured (Examples 1 to 9). For comparison, foaming detergents consisting only of powders with the same compositions as those of the powders and tablets contained in Examples 1 to 9 were prepared and similarly evaluated (Comparative Examples 1 to 9). The results are shown in Table 4. In all of Examples 1 to 9, the lather volume increase rate after 60 minutes was greater than in Comparative Examples 1 to 9. In Examples 3 to 8, the maximum lather volume increase rate was also greater.

[0102] [Table 1] [Table 2] [Table 3] [Table 4]

[0103] (Examples 10 to 16, Comparative Examples 10 to 16) Powders containing a foaming agent that generates carbon dioxide gas but not a foaming agent that generates oxygen gas were prepared using the blending compositions shown in Tables 5 to 7, and powders containing a foaming agent that generates oxygen gas but not a foaming agent that generates carbon dioxide gas were prepared. A tablet that does not contain a foaming agent that generates gas was prepared, and the tablet and powder were mixed and packaged in an aluminum laminated film container to prepare a foaming detergent. Using the foaming detergents prepared in Tables 5 to 7, the tablet and powder were simultaneously put into a measuring cylinder containing tap water that imitates the object to be cleaned, and the amount of foaming, etc. were measured (Examples 10 to 16). For comparison, foaming detergents consisting only of powders with the same compositions as those of the powders and tablets contained in Examples 10 to 16 were prepared and similarly evaluated (Comparative Examples 10 to 16). The results are shown in Table 8. In all of Examples 10 to 16, the lather volume increase rate after 60 minutes was greater than in Comparative Examples 10 to 16 consisting only of powders of the same composition, and Examples 11 to 16 also showed a greater maximum lather volume increase rate.

[0104] [Table 5] [Table 6] [Table 7] [Table 8]

[0105] (Examples 17 to 25, Comparative Examples 17 to 25) In the formulation shown in Tables 9 to 11, a powder containing a foaming agent that generates oxygen gas but does not contain a foaming agent that generates carbon dioxide gas was prepared, and a tablet containing a foaming agent that generates carbon dioxide gas but does not contain a foaming agent that generates oxygen gas was prepared, and the tablet and powder were mixed and packaged in an aluminum laminated film container to prepare a foaming detergent. Using the foaming detergent prepared in Tables 9 to 11, the tablet and powder were simultaneously put into a measuring cylinder containing tap water that imitates the cleaning target, and the foaming amount, etc. were measured (Examples 17 to 25). For comparison, foaming detergents consisting only of powders with the same compositions as those of the powders and tablets contained in Examples 17 to 25 were prepared and similarly evaluated (Comparative Examples 17 to 25). The results are shown in Table 12. In all of Examples 17 to 25, the lather volume increase rate after 60 minutes was greater than in Comparative Examples 17 to 25 consisting only of powders of the same composition, and the maximum lather volume increase rate was also greater.

[0106] [Table 9] [Table 10] [Table 11] [Table 12]

[0107] (Examples 26 to 34, Comparative Examples 26 to 34) Tablets and powders containing a foaming agent that generates carbon dioxide gas but not a foaming agent that generates oxygen gas were prepared according to the formulations shown in Tables 13 to 15, and the tablets and powders were mixed and packaged in an aluminum laminated film container to prepare foaming detergents. Using the foaming detergents prepared in Tables 13 to 15, the tablets and powders were poured into a measuring cylinder containing tap water that simulates the object to be cleaned. The amount of foaming was measured (Examples 26 to 34). For comparison, foaming detergents consisting only of powders with the same compositions as those of the powders and tablets contained in Examples 26 to 34 were prepared and similarly evaluated (Comparative Examples 26 to 34). The results are shown in Table 16. In all of Examples 26 to 34, the maximum lather volume increase rate was increased, and further, in Examples 26 to 30 and 32 to 34, the lather volume increase rate after 60 minutes was also increased.

[0108] [Table 13] [Table 14] [Table 15] [Table 16]

[0109] (Examples 35 to 41, Comparative Examples 35 to 38) Tablets and powders containing a foaming agent that generates carbon dioxide gas but not a foaming agent that generates oxygen gas were prepared according to the composition shown in Table 17, and the tablets and powders were mixed and packaged in an aluminum laminated film container to prepare foaming detergents (Examples 35 to 36). Tablets and powders containing both a foaming agent that generates oxygen gas and a foaming agent that generates carbon dioxide were prepared with the blending composition described in Tables 8 to 19, and the tablets and powders were mixed and packaged in an aluminum laminated film container to prepare foaming detergents (Examples 37 to 41). Using the foaming detergents prepared in Tables 17 to 19, the tablets and powders were simultaneously put into a measuring cylinder containing tap water simulating a cleaning target, and the amount of foaming, etc. was measured (Examples 35 to 41). For comparison, a foaming detergent consisting only of powders having the same composition as those in the powders and tablets in Examples 35 to 36 (Comparative Example 35) and a foaming detergent consisting only of tablets having the same composition as those in the powders and tablets in Examples 35 to 36 (Comparative Example 36) were prepared and evaluated in the same manner. For the tablets in Comparative Example 36, eight tablets (φ20.0 mm, 5.00 g) were used, which were the same as those used in Examples 35 to 36. Similarly, a foaming detergent consisting only of powders having the same composition as those in the powders and tablets in Examples 37 to 41 (Comparative Example 37) and a foaming detergent consisting only of tablets having the same composition as those in the powders and tablets in Examples 37 to 41 (Comparative Example 38) were prepared and evaluated in the same manner. For the tablets in Comparative Example 38, eight tablets (φ20.0 mm, 5.00 g) were used, which were the same as those used in Examples 37 to 41. The results of Examples 35 to 36 and Comparative Examples 35 to 36, and the results of Examples 37 to 41 and Comparative Examples 37 to 38 are as shown in Table 20. In all of Examples 35 to 36, the lather volume increase rate after 60 minutes increased, and the maximum lather volume increase rate also increased. In all of Examples 37 to 41, the lather volume increase rate after 60 minutes increased, and in addition, in Examples 37 to 39 and 41, the maximum lather volume increase rate also increased.

[0110] [Table 17] [Table 18] [Table 19] [Table 20]

[0111] (Examples 42 to 47, Comparative Examples 39 to 41) Tablets and powders containing a foaming agent that generates oxygen gas but does not contain a foaming agent that generates carbon dioxide gas were prepared in the formulation shown in Table 21, and the tablets and powders were mixed and packaged in an aluminum laminated film container to prepare foaming detergents (Examples 42-44). In addition, tablets and powders containing both a foaming agent that generates carbon dioxide gas and a foaming agent that generates oxygen gas were prepared in the formulation shown in Table 22, and the tablets and powders were mixed and packaged in an aluminum laminated film container to prepare foaming detergents (Examples 45-47). Using the foaming detergents prepared in Tables 21-22, the tablets and powders were simultaneously put into a measuring cylinder containing tap water simulating the cleaning target, and the amount of foaming was measured (Examples 42-47). For comparison, a foaming detergent consisting only of powders having the same composition as those in the powders and tablets in Examples 42 to 44 (Comparative Example 39) and a foaming detergent consisting only of tablets having the same composition as those in the powders and tablets in Examples 42 to 44 (Comparative Example 40) were prepared and evaluated in the same manner. For the tablets in Comparative Example 40, eight tablets (φ20.0 mm, 5.00 g) were used, which were the same as those used in Examples 42 to 44. Similarly, the powders and tablets in Examples 45 to 47 were prepared by mixing only powders having the same composition as the powders and tablets in Examples 45 to 47. A foaming detergent (Comparative Example 41) was prepared and evaluated in the same manner. The results of Examples 42 to 44 and Comparative Examples 39 to 40, and the results of Examples 45 to 47 and Comparative Example 41 are as shown in Table 23. In all of Examples 42 to 44, both the maximum lather volume increase rate and the lather volume increase rate after 60 minutes were increased. In all of Examples 45 to 47, both the maximum lather volume increase rate and the lather volume increase rate after 60 minutes were increased.

[0112] [Table 21] [Table 22] [Table 23]

[0113] (Examples 48 to 54, Comparative Example 42) Tablets and powders containing both a foaming agent that generates carbon dioxide gas and a foaming agent that generates oxygen gas were prepared with the blending composition shown in Tables 24 to 26, and the tablets and powders were mixed and packaged in an aluminum laminated film container to prepare foaming detergents (Examples 48 to 54). In Examples 48 to 50 shown in Table 24, 1 to 3 tablets with a diameter of φ20.0 mm were used. In Examples 51 to 54 shown in Tables 25 to 26, one tablet with a diameter of φ30.0 mm was used. Using the foaming detergents prepared in Tables 24 to 26, the tablets and powders were simultaneously put into a measuring cylinder containing tap water simulating the object to be cleaned, and the amount of foaming, etc. were measured (Examples 48 to 54). Similarly, foaming detergents (Comparative Examples 42 to 48) consisting only of powders having the same compositions as the powders and tablets contained in Examples 48 to 54 were prepared and similarly evaluated. The results of Examples 48 to 54 and Comparative Examples 42 to 48 are as shown in Table 27. In all of Examples 48 to 54, both the maximum lather volume increase rate and the lather volume increase rate after 60 minutes increased.

[0114] [Table 24] [Table 25] [Table 26] [Table 27]

[0115] From the above results, it was revealed that the foaming detergent of the present invention, which combines the tablet and powder, has a higher maximum foam volume increase rate and / or a higher foam volume increase rate after 60 minutes than foaming detergents of the same composition that are powder only or tablets only. This foam volume increase effect shows that the foaming detergent of the present invention can more efficiently clean dirt near the waterline.

[0116] Generally, when the composition of a foaming detergent is the same, the maximum foaming amount of the tablet is inferior to that of the powder, so it was expected that the foaming amount of the foaming detergent that combines the powder and the tablet will be intermediate between that of the foaming detergent that is only powder and that is only tablet. However, it has been revealed that by combining the tablet and the powder as in the present invention, the foaming amount is higher than that of either the powder or the tablet. This effect is a remarkable effect that cannot be predicted from the prior art. Furthermore, the combination improves the foaming duration and increases the foaming amount increase rate after 60 minutes, which is a remarkable effect that cannot be predicted from the prior art. [Industrial Applicability]

[0117] According to the present invention, it is possible to obtain a high foaming amount and to distribute the cleaning agent components over a wide range. The present invention provides a foaming detergent and a method for using the same, and has great industrial applicability.

Claims

Claim 1 A foaming detergent comprising a combination of a tablet containing a foaming agent and a powder containing a foaming agent, wherein the tablet containing the foaming agent and the powder containing the foaming agent are each contained in different containers, and comprising a combination of one or more containers containing the tablet containing the foaming agent and one or more containers containing the powder containing the foaming agent. Claim 2. A method of using a foaming detergent, comprising the step of simultaneously contacting a tablet containing a foaming agent and a powder containing a foaming agent, which are contained in the foaming detergent according to Claim 1, with a cleaning object to which water is attached. Claim 3. A method of using a foaming detergent, comprising the step of contacting either one of a tablet containing a foaming agent and a powder containing a foaming agent, which are contained in the foaming detergent according to Claim 1, with a cleaning agent object to which water is attached first and then contacting the other.