Powder or granular carbonic acid foaming composition and powder or granular detergent composition

Abstract

This powder or granular carbonic acid foaming composition contains a carbonate and an organic acid. The powder or composition contains at least 30 mass% of particles having a grain diameter of at least 100 μm, and at least 0.10 pcs% of individual particles having a grain diameter of at least 100 μm and a hardness of at least 5 gf.

Description

Powder or granular carbonated foaming composition, powder or granular detergent composition

[0001] The present invention relates to a powdered or granular carbonated foaming composition and a powdered or granular detergent composition.

[0002] In recent years, foam-type shampoos, facial cleansers, and body soaps have been attracting attention due to their ease of use. In this context, a foaming cosmetic composition that generates fine carbon dioxide bubbles has been reported, taking advantage of the property that a mixture of a carbonate and an organic acid generates carbon dioxide gas when a small amount of water is added (JP 1-290615 A: Patent Document 1). It is disclosed that this foaming cosmetic composition can be used as a facial cleanser, shaving foam, shampoo, or body soap. However, the foaming cosmetic composition described in Patent Document 1 generates carbon dioxide gas during storage when even a trace amount of water is present in the mixture of a carbonate and an organic acid, and the reaction generates water as a by-product, causing a chain reaction, which results in problems such as swelling of the packaging material and reduced foaming properties during use.

[0003] In response to this problem, techniques for improving storage stability have been reported. For example, Japanese Patent Laid-Open No. 2009-62319 (Patent Document 2) discloses effervescent granules containing an oily component and having a particle size of 150 μm to 1500 μm, thereby improving storage stability. Furthermore, Japanese Patent Laid-Open No. 2009-155213 (Patent Document 3) discloses a bath agent composition having good storage stability by containing the following components (A) to (C): (A) 25 to 55% by mass of an alkali metal carbonate having 50% or more particles with a particle size of 180 μm or more, (B) 40 to 70% by mass of an organic acid having 50% or more particles with a particle size of 180 μm or more, and (C) 0.01 to 10% by mass of a poorly water-soluble metal oxide.

[0004] The present invention relates to the following [1] to [4]. [1] A powdered or granular carbonated foaming composition containing a carbonate and an organic acid, containing 30% by mass or more of particles having a particle size of 100 μm or more, and wherein the content of particles having a particle size of 100 μm or more and a hardness of 5 gf or more among the particles having a particle size of 100 μm or more is 0.10% or less by number. [2] A method for producing the powdered or granular carbonated foaming composition according to [1], comprising a step of granulating at least one of the carbonate or the organic acid. [3] A powdered or granular detergent composition containing a carbonate, an organic acid, and a surfactant, containing 30% by mass or more of particles having a particle size of 100 μm or more, and wherein the content of particles having a particle size of 100 μm or more and a hardness of 5 gf or more among the particles having a particle size of 100 μm or more is 0.10% or less by number. [4] A method for producing the powder or granular detergent composition according to [3], comprising a step of granulating at least one of a carbonate salt and an organic acid.

[0005] However, the technology described in JP 2009-62319 A (Patent Document 2) uses a compression granulation method, which reduces the immediate solubility of the granules. Therefore, when this technology is used to produce a carbonated foaming composition used for lathering shampoo or the like by hand, it has been found that undissolved components cause roughness, resulting in a poor feel during use and a poor feel. Furthermore, JP 2009-155213 A (Patent Document 3) is a technology related to bath additives. When the bath additive composition dissolves on the surface of the bathwater, the carbon dioxide gas does not dissolve sufficiently in the bathwater and dissipates. Therefore, in order to dissolve the bath additive composition in the bathwater, the bath additive composition must be allowed to settle in the bathwater and remain there for a certain period of time. Therefore, it is assumed that raw material particles having a certain large particle size are used as the particles constituting the bath additive composition. In contrast, carbonated foaming compositions used for foaming by hand require instant solubility, i.e., instant dissolution in a small amount of liquid in a short time. Therefore, when large particles are used as carbonated foaming compositions, the solubility is poor, and the same roughness problem as described above occurs. Unlike bath additives, carbonated foaming compositions are applied to hair or the body and come into direct contact with the skin, so a delicate feel is required. Therefore, an object of the present invention is to provide a powdered or granular carbonated foaming composition and a powdered or granular cleanser composition that have high storage stability, reduced roughness to the touch, and a good feel when used.

[0006] As a result of their investigations, the inventors have found that the above-mentioned problems can be solved by a powdered or granular carbonated foaming composition that contains a carbonate and an organic acid, and that contains a predetermined amount or more of particles having a particle size greater than or equal to a predetermined value, and that contains a predetermined amount or less of particles having a particle size and hardness greater than or equal to a predetermined value.

[0007] Furthermore, as a result of further investigations, the inventors have found that the above-mentioned problems can be solved by a powder or granular detergent composition that contains a carbonate, an organic acid, and a surfactant, and that contains a predetermined amount or more of particles having a particle size equal to or larger than a predetermined value, and that contains a predetermined amount or less of particles having a particle size and hardness equal to or larger than a predetermined value.

[0008] A first embodiment of the present invention relates to a powdered or granular carbonated foaming composition that contains a carbonate and an organic acid, contains 30 mass% or more of particles with a particle size of 100 μm or more, and has a content of particles with a particle size of 100 μm or more and a hardness of 5 gf or more of 0.10 number% or less.

[0009] A second embodiment of the present invention relates to a powder or granular detergent composition containing a carbonate, an organic acid, and a surfactant, containing 30% by mass or more of particles having a particle size of 100 μm or more, and containing 0.10% by number or less of particles having a particle size of 100 μm or more and a hardness of 5 gf or more.

[0010] According to the present invention, it is possible to provide a powdered or granular carbonated foaming composition and a powdered or granular detergent composition that have high storage stability, are suppressed from being rough to the touch, and have a good feel when used.

[0011] [First Embodiment: Powder or Granular Carbonated Foaming Composition] The powder or granular carbonated foaming composition according to the first embodiment of the present invention contains a carbonate salt and an organic acid, contains 30% by mass or more of particles with a particle size of 100 μm or more, and contains 0.10% by number or less of particles with a particle size of 100 μm or more and a hardness of 5 gf or more. The powder or granular carbonated foaming composition according to the first embodiment of the present invention (hereinafter also referred to simply as the carbonated foaming composition) is used, for example, to form a foam-like formulation from a surfactant-containing composition such as a shampoo or conditioner. Therefore, the powder or granular carbonated foaming composition according to the first embodiment of the present invention is combined with a surfactant-containing composition and applied to the surface of the human body, including skin and hair. Therefore, a pleasant feel when foamed, without roughness, is required. Furthermore, the carbonated foaming composition must dissolve quickly and instantly, and therefore, the particles constituting the composition preferably have a small particle size. However, it was found that when the particle size of a carbonated foamable composition is small, the addition of a moisture absorbent is insufficient to suppress the generation of carbon dioxide gas in the packaging material, resulting in poor storage stability. Therefore, in order to suppress the generation of carbon dioxide gas during storage, it is necessary to increase the particle size of the carbonate salt or organic acid. The inventors conducted extensive research to address these conflicting needs and discovered that the hardness and particle size of the particles constituting the carbonated foamable composition are closely related to the feel during use and storage stability. They discovered that adjusting the hardness and particle size of the particles in the carbonated foamable composition makes it possible to achieve both a good feel and storage stability, leading to the completion of the present invention. According to a powdered or granular carbonated foamable composition according to a first embodiment of the present invention, by containing a predetermined amount of particles having a particle size of 100 μm or more and setting the content of particles having a particle size of 100 μm or more and a hardness of 5 gf or more to a predetermined percentage or less, roughness to the touch during use can be suppressed, resulting in a good usability.

[0012] The powdered or granular carbonated foaming composition according to the first embodiment of the present invention may contain a surfactant within a range that does not inhibit the efficacy of the surfactant-containing composition used in combination. The surfactant content may be less than 10% by mass, 7% by mass or less, or 5% by mass or less, and may be 1% by mass or more, 2% by mass or more, or 3% by mass or more. The surfactant-containing composition will be described in detail in the section on how to use the powdered or granular carbonated composition.

[0013] The surfactant used in the powdered or granular carbonated foaming composition according to the first embodiment of the present invention can be the same as that used in the powdered or granular detergent composition according to the second embodiment of the present invention, which will be described later.

[0014] <Carbonate> The powdered or granular carbonated foamable composition according to the first embodiment of the present invention contains a carbonate. Examples of carbonates used in the present invention include dialkali metal carbonates such as sodium carbonate and potassium carbonate; alkali metal bicarbonates such as sodium bicarbonate and potassium bicarbonate; and the like, and one or more of these may be used. Among these, from the viewpoint of improving foaming properties, the carbonate is preferably sodium carbonate (Na ２ CO ３ ), and sodium bicarbonate (NaHCO ３ From the viewpoint of improving foaming properties, the content of the one or more selected from the group consisting of sodium carbonate and sodium hydrogen carbonate in the carbonate salt is preferably 80% by mass or more, more preferably 90% by mass or more, and preferably 100% by mass or less, more preferably 100% by mass.

[0015] From the viewpoint of improving foaming property, the content of carbonate in the powdered or granular carbonated foaming composition is preferably 15% by mass or more, more preferably 25% by mass or more, even more preferably 30% by mass or more, and even more preferably 35% by mass or more. From the viewpoint of improving foam retention, it is preferably 65% ​​by mass or less, more preferably 60% by mass or less, and even more preferably 55% by mass or less. The content of carbonate in the powdered or granular carbonated foaming composition is preferably 15% by mass or more and 65% by mass or less, more preferably 25% by mass or more and 60% by mass or less, even more preferably 30% by mass or more and 55% by mass or less, and even more preferably 35% by mass or more and 55% by mass or less.

[0016] The carbonate used in the powdered or granular carbonated foaming composition according to the first embodiment of the present invention may be contained in the form of raw material particles (hereinafter also referred to as "raw material particles"), or may be contained as particles granulated with other components as needed (hereinafter also referred to as "granulated particles"), or a mixture of these. Furthermore, when the carbonate is in the form of granulated particles, the carbonate may be granulated alone or together with components other than the carbonate. However, in the case of granulated particles, it is preferable that the carbonate does not contain an organic acid from the viewpoint of storage stability. Here, "not containing" means that the carbonate is substantially not contained, and the amount of organic acid in the granulated particles is preferably less than 1% by mass, and more preferably 0% by mass. Furthermore, the carbonate is preferably granulated together with components other than the organic acid, such as one or more selected from the group consisting of excipients, water-soluble polymers (binders, texture modifiers), and moisture absorbents, and is particularly preferably granulated together with all components other than the organic acid. By granulating ingredients other than the organic acid together, the amount of fine powder derived from ingredients other than the organic acid can be reduced, and choking caused by the scattering of fine powder when using the carbonated foaming composition can be prevented.

[0017] <Organic Acid> The powdered or granular carbonated foaming composition according to the first embodiment of the present invention contains an organic acid. Examples of organic acids used in the present invention include citric acid, tartaric acid, malic acid, malonic acid, pyridonecarboxylic acid, succinic acid, fumaric acid, adipic acid, glutaric acid, and ascorbic acid, and one or more of these may be used. Among these, from the viewpoints of effervescence and solubility in water, the organic acid preferably contains one or more selected from the group consisting of citric acid, succinic acid, tartaric acid, and ascorbic acid, and more preferably contains citric acid. From the viewpoint of improving effervescence, the content of the one or more selected from the group consisting of citric acid, succinic acid, tartaric acid, and ascorbic acid in the organic acid is preferably 80% by mass or more, more preferably 90% by mass or more, and preferably 100% by mass or less, and more preferably 100% by mass.

[0018] From the viewpoint of improving foaming property, the content of organic acid in the powdered or granular carbonated foaming composition is preferably 5% by mass or more, more preferably 10% by mass or more, even more preferably 15% by mass or more, and even more preferably 20% by mass or more. From the viewpoint of improving foam retention, it is preferably 60% by mass or less, more preferably 50% by mass or less, even more preferably 45% by mass or less, even more preferably 40% by mass or less, and even more preferably 35% by mass or less. The content of organic acid in the powdered or granular carbonated foaming composition is preferably 5% by mass or more and 60% by mass or less, more preferably 10% by mass or more and 50% by mass or less, even more preferably 10% by mass or more and 45% by mass or less, even more preferably 15% by mass or more and 40% by mass or less, and even more preferably 20% by mass or more and 35% by mass or less.

[0019] The organic acid used in the powdered or granular carbonated foaming composition according to the first embodiment of the present invention may be contained in the form of raw material particles (raw material particles), or may be contained as particles granulated with other components as needed (granulated particles), or may be a mixture of these. Furthermore, when the organic acid is in the form of granulated particles, the organic acid may be granulated alone or together with components other than the organic acid. However, in the case of granulated particles, it is preferable that the organic acid does not contain carbonate from the viewpoint of storage stability. Here, "not containing" means that the organic acid is substantially not contained, and the amount of carbonate in the granulated particles is preferably less than 1% by mass, more preferably 0% by mass. Furthermore, the organic acid is preferably granulated together with components other than carbonate, such as one or more selected from the group consisting of excipients, binders, and hygroscopic agents, and is particularly preferably granulated together with all components other than carbonate. Granulating the organic acid together with components other than carbonate reduces the amount of fine powder derived from components other than carbonate, thereby preventing choking caused by the scattering of fine powder during use of the carbonated foaming composition.

[0020] In the powdered or granular carbonated foamable composition, from the viewpoint of foaming property, the mass ratio of the organic acid to the carbonate [organic acid / carbonate] is preferably 0.05 or more, more preferably 0.1 or more, even more preferably 0.2 or more, and preferably 10 or less, more preferably 5.0 or less, and even more preferably 1.0 or less. The mass ratio of the organic acid to the carbonate [organic acid / carbonate] is preferably 0.05 or more and 10 or less, more preferably 0.1 or more and 5.0 or less, and even more preferably 0.2 or more and 1.0 or less.

[0021] The total amount of carbonate and organic acid in the powdered or granular carbonated foamable composition is preferably 50% by mass or more, more preferably 60% by mass or more, and even more preferably 65% ​​by mass or more, from the viewpoint of foaming ability, and is preferably 90% by mass or less, more preferably 85% by mass or less, and even more preferably 80% by mass or less, from the viewpoint of improving foam retention. The total amount of carbonate and organic acid in the powdered or granular carbonated foamable composition is preferably 50% by mass or more and 90% by mass or less, more preferably 60% by mass or more and 85% by mass or less, and even more preferably 65% ​​by mass or more and 80% by mass or less.

[0022] <Moisture absorbent> The powdered or granular carbonated foamable composition according to the first embodiment of the present invention preferably further contains a moisture absorbent. Examples of moisture absorbents used in the present invention include alkaline earth metal oxides such as magnesium oxide, calcium oxide, and zinc oxide. Among these, magnesium oxide is preferred from the viewpoints of improving storage stability and foaming properties.

[0023] From the viewpoint of improving storage stability, the content of the moisture absorbent in the powdered or granular carbonated foaming composition is preferably 0.01% by mass or more, more preferably 0.1% by mass or more, even more preferably 1% by mass or more, still more preferably 2% by mass or more, and even more preferably 4% by mass or more. From the viewpoint of improving foaming property, it is preferably 15% by mass or less, more preferably 12% by mass or less, and even more preferably 10% by mass or less. The content of the moisture absorbent in the powdered or granular carbonated foaming composition is preferably 0.01% by mass or more and 15% by mass or less, more preferably 0.1% by mass or more and 12% by mass or less, even more preferably 1% by mass or more and 12% by mass or less, still more preferably 2% by mass or more and 10% by mass or less, and even more preferably 4% by mass or more and 10% by mass or less.

[0024] <Other Components> The powdered or granular carbonated foaming composition according to the first embodiment of the present invention may contain components commonly used in powdered or granular carbonated foaming compositions, provided that the components do not impair the object of the present invention. Examples of such other components include excipients, water-soluble polymers, thickeners, natural pigments, humectants, anti-inflammatory agents, disinfectants, antiperspirants, antioxidants, fragrances, and mixtures thereof. From the viewpoint of foaming properties, the powdered or granular carbonated foaming composition according to the first embodiment of the present invention is preferably substantially free of oily components such as fragrances. The content of oily components in the powdered or granular carbonated foaming composition is preferably less than 2% by mass, more preferably 1.5% by mass or less, even more preferably less than 1.0% by mass, even more preferably 0.5% by mass or less, even more preferably 0.1% by mass or less, and even more preferably 0% by mass.

[0025] Examples of the excipients used in the present invention include silicic acid, silicic anhydride (silica), magnesium silicate, calcium silicate, aluminum silicate, barium silicate, strontium silicate, diatomaceous earth, talc, sericite, mica, kaolin, montmorillonite, clay, bentonite, vermiculite, titanium oxide-coated mica (titanium mica), bismuth oxychloride, boron nitride, zirconium oxide, titanium oxide, low-order titanium oxide, metal tungstate, hydroxyapatite, zeolite, ceramic powder, aluminum chlorohydrate, aluminum chloride, aluminum sulfate, basic aluminum bromide, basic Examples of suitable excipients include inorganic powders such as aluminum iodide, aluminum zirconium chlorohydrate, zinc sulfate, basic aluminum zinc lactate, aluminum oxide, calcium sulfate, barium sulfate, magnesium sulfate, red iron oxide, black iron oxide, yellow iron oxide, ultramarine, Prussian blue, chromium oxide, chromium hydroxide, calamine, and carbon black; monosaccharides such as glucose, fructose, galactose, and mannose; disaccharides such as lactose, trehalose, and maltose; starches such as cornstarch and potato starch; and sugar alcohols such as mannitol, maltitol, xylitol, and erythritol. The content of the excipient in the powdered or granular carbonated foaming composition is preferably 5% by mass or more, more preferably 10% by mass or more, from the viewpoints of solubility, granulation ability, foaming ability, and storage stability, and is preferably 50% by mass or less, more preferably 40% by mass or less, and even more preferably 30% by mass or less. The content of excipients in the powdered or granular carbonated foaming composition is preferably 5% by mass or more and 50% by mass or less, more preferably 10% by mass or more and 40% by mass or less, and even more preferably 10% by mass or more and 30% by mass or less.

[0026] The water-soluble polymer used in the present invention is preferably a polysaccharide-based polymer from the viewpoint of improving the feeling during use, and such water-soluble polymers can be used as feel adjusters and binders described below. Examples of water-soluble polymers used in the present invention include semi-synthetic water-soluble polymers such as hydroxyethyl cellulose, hydroxymethyl cellulose, carboxymethyl cellulose, cationized hydroxyethyl cellulose, cationized carboxymethyl cellulose, cationized xanthan gum, cationized carrageenan, and cationized guar gum, and natural water-soluble polymers such as xanthan gum, carrageenan, and guar gum. One or more of these may be used. Among the above, from the viewpoint of stabilizing foam generated upon contact with a surfactant-containing composition and improving the feeling during use when added to a surfactant-containing composition such as a hair cosmetic, water-soluble cationized polysaccharides are preferred, more preferably one or more selected from the group consisting of cationized hydroxyethyl cellulose, cationized carboxymethyl cellulose, cationized xanthan gum, cationized carrageenan, and cationized guar gum, and even more preferably one or more selected from the group consisting of cationized hydroxyethyl cellulose, cationized carboxymethyl cellulose, and cationized guar gum.

[0027] The content of the water-soluble polymer in the powdered or granular carbonated foaming composition is preferably 0.1% by mass or more, more preferably 1.0% by mass or more, even more preferably 2.5% by mass or more, and preferably 30% by mass or less, more preferably 20% by mass or less, even more preferably 10% by mass or less, and still more preferably 5.0% by mass or less, from the viewpoints of stabilizing the foam generated when added to a surfactant-containing composition and improving the feel when added to a surfactant-containing composition such as a hair cosmetic. The content of the water-soluble polymer in the powdered or granular carbonated foaming composition is preferably 0.1% by mass or more and 30% by mass or less, more preferably 1.0% by mass or more and 20% by mass or less, even more preferably 1.0% by mass or more and 10% by mass or less, and still more preferably 2.5% by mass or less and 5.0% by mass or less.

[0028] The content of the feel-adjusting agent in the powdered or granular carbonated foaming composition is preferably 0.01% by mass or more, more preferably 0.3% by mass or more, even more preferably 0.8% by mass or more, still more preferably 1.3% by mass or more, still more preferably 2.3% by mass or more, from the viewpoint of stabilizing the foam generated when brought into contact with a surfactant-containing composition, and from the viewpoint of improving the feel when added to a surfactant-containing composition such as a hair cosmetic. It is also preferably 29.8% by mass or less, more preferably 25.3% by mass or less, still more preferably 19.8% by mass or less, still more preferably 9.8% by mass or less, and still more preferably 4.8% by mass or less. The content of the feel-adjusting agent in the powdered or granular carbonated foaming composition is preferably 0.01 mass% or more and 29.8 mass% or less, more preferably 0.3 mass% or more and 25.3 mass% or less, even more preferably 0.8 mass% or more and 19.8 mass% or less, even more preferably 1.3 mass% or more and 9.8 mass% or less, and even more preferably 2.3 mass% or more and 4.8 mass% or less.

[0029] <Powdered or Granular Carbonated Foaming Composition> The powdered or granular carbonated foaming composition according to the first embodiment of the present invention contains 30% by mass or more of particles having a particle size of 100 μm or more, and the content of particles having a particle size of 100 μm or more and a hardness of 5 gf or more among the particles having a particle size of 100 μm or more is 0.10% by number or less. That is, the powdered or granular carbonated foaming composition according to the first embodiment of the present invention contains 30% by mass or more of particles having a particle size of 100 μm or more, and the content of particles having a particle size of 100 μm or more and a hardness of 5 gf or more among the particles having a particle size of 100 μm or more is 0.10% by number or less. By containing 30% by mass or more of particles having a particle size of 100 μm or more, storage stability can be improved, and by limiting the content of particles having a particle size of 100 μm or more and a hardness of 5 gf or more to 0.10% by number or less, roughness to the touch can be suppressed, improving usability.

[0030] Furthermore, it is preferable that at least a portion of the particles having a particle size of 100 μm or more are granulated particles. From the viewpoint of improving the feel in use, particularly suppressing roughness to the touch, the content of granulated particles among the particles having a particle size of 100 μm or more is preferably greater than 55% by number, more preferably greater than 60% by number, even more preferably greater than 65% by number, and even more preferably greater than 70% by number. It is even more preferable that all particles are granulated particles. However, from the viewpoint of production efficiency, some particles may be the raw material particles. Granulated particles allow for easy adjustment of hardness, making it possible to adjust the content of particles having a particle size of 100 μm or more and a hardness of 5 gf or more. The content of granulated particles among particles having a particle size of 100 μm or more constituting the powdered or granular carbonated foamable composition according to the first embodiment of the present invention can be determined by sieving the particles through a sieve with a mesh size of 100 μm, observing the obtained particles having a particle size of 100 μm or more under SEM, and actually measuring the number ratio.

[0031] Generally, the carbonate particles and organic acid particles used as raw materials have high hardness, and if large particle size raw materials are used as is, the content of particles 100 μm or larger and having a hardness of 5 gf or larger will be high, and when the carbonated foamable composition is dissolved in water, the remaining particles will deteriorate the feel to the touch. However, by converting at least a portion of the particles 100 μm or larger into granulated particles, it is possible to reduce the content of particles with high hardness, suppress the rough feel to the touch, and improve the feel in use. An example of converting a portion into granulated particles is when either the organic acid or the carbonate is converted into granulated particles and the other is used as the raw material. More specifically, examples include a case in which the components constituting the carbonated foamable composition other than the organic acid, preferably one or more selected from the group consisting of excipients, water-soluble polymers (binders, texture modifiers), and moisture absorbents, more preferably all components other than the organic acid, and the carbonate are granulated into particles, and the organic acid is used as raw material without granulation; or a case in which the components constituting the carbonated foamable composition other than the carbonate, preferably one or more selected from the group consisting of excipients, water-soluble polymers (binders, texture modifiers), and moisture absorbents, more preferably all components other than the carbonate, and the organic acid are granulated into particles, and the carbonate is used as raw material without granulation. From the viewpoint of production efficiency, it is preferable to form the organic acid into granulated particles and use the carbonate as raw material particles. It is also preferable that the granulated particles contain an excipient. It is preferable that the organic acid and the carbonate are not granulated together, but that the organic acid and the carbonate are each in the form of separate, independent particles. By forming the organic acid and the carbonate into independent particles, storage stability and effervescence can be further improved.

[0032] The powdered or granular carbonated foaming composition according to the first embodiment of the present invention preferably contains particles (A) containing a carbonate and particles (B) containing an organic acid. Preferably, particles (A) do not contain an organic acid, and particles (B) do not contain a carbonate. Preferably, particles (A) or particles (B) contain an excipient, or both particles (A) and (B) contain an excipient. Specifically, the powdered or granular carbonated foaming composition according to the first embodiment of the present invention may contain particles (A) containing a carbonate and particles (B) containing an organic acid and an excipient, particles (A) containing a carbonate and an excipient and particles (B) containing an organic acid, or particles (A) containing a carbonate and an excipient and particles (B) containing an organic acid and an excipient.

[0033] The content (mass proportion) of particles having a particle size of 100 μm or more among all particles constituting the powdered or granular carbonated foaming composition according to the first embodiment of the present invention can be measured by a sieving method. The content (number proportion) of particles having a particle size of 100 μm or more among all particles constituting the powdered or granular carbonated foaming composition according to the first embodiment of the present invention can be measured by the following method. (i) First, the content (number proportion) of particles having a particle size of 100 μm or more among all particles is calculated. Specifically, the particle size distribution is measured using a Camsizer XT (a particle size measuring device manufactured by RETSCH), and particles having a particle size of 1 to 3,000 μm in the obtained distribution are defined as the "total particles" in the present invention. The distribution is divided logarithmically into 100 equal parts, and the range including 100 μm or more is counted as 100 μm or more. The total number of particles having a particle size of 100 μm or more is calculated, and the content (number proportion) of particles having a particle size of 100 μm or more among all particles is then calculated. (ii) Next, the content (number ratio) of particles with a hardness of 5 gf or more among the particles with a particle size of 100 μm or more is calculated. Specifically, a powdered or granular carbonated foaming composition is sieved through a sieve with a mesh size of 100 μm, and 20 or more random samples are taken from the resulting particles with a particle size of 100 μm or more. The hardness of each particle is measured using a micro-compression tester (MCT series, manufactured by Shimadzu Corporation), and the content of particles with a hardness of 5 gf or more is calculated. This procedure is repeated three times to calculate the average value. The hardness of a particle can be determined by the load (gf) at the breaking point of the particle applied using the micro-compression tester. Note that if a particle breaks down in multiple stages, the load at the first breaking point (hereinafter also referred to as the first breaking point) is used as the hardness of the particle. (iii) Next, the content (number ratio) of particles having a particle size of 100 μm or more among all particles obtained in (i) above is multiplied by the content (number ratio) of particles having a hardness of 5 gf or more among particles having a particle size of 100 μm or more obtained in (ii) above, thereby calculating the content (number ratio) of particles having a particle size of 100 μm or more among all particles.

[0034] Of all particles constituting the powdered or granular carbonated foaming composition according to the first embodiment of the present invention, particles having a particle size of 100 μm or more comprise 30% by mass or more, preferably 35% by mass or more, more preferably 40% by mass or more, even more preferably 50% by mass or more, even more preferably 55% by mass or more, even more preferably 65% ​​by mass or more, and even more preferably 70% by mass or more, from the viewpoint of storage stability. From the viewpoint of productivity, the content is preferably 100% by mass or less, more preferably 95% by mass or less, and even more preferably 90% by mass or less. Of all particles, particles having a particle size of 100 μm or more comprise 30% by mass or more, preferably 30% by mass or more to 100% by mass, more preferably 35% by mass or more to 100% by mass, even more preferably 40% by mass or more to 95% by mass, even more preferably 50% by mass or more to 90% by mass, even more preferably 55% by mass or more to 90% by mass, even more preferably 65% ​​by mass or more to 90% by mass, and even more preferably 70% by mass or more to 90% by mass.

[0035] Furthermore, from the viewpoint of storage stability, the proportion of particles having a particle size of 100 μm or more among all particles constituting the powdered or granular carbonated foamable composition according to the first embodiment of the present invention is preferably 0.015% by number or more, more preferably 0.017% by number or more, even more preferably 0.02% by number or more, even more preferably 0.03% by number or more, and even more preferably 0.1% by number or more. Ideally, the upper limit is 100% by number, but because fine powder is also included in the production process, from the viewpoint of productivity, the upper limit is preferably 1% by number or less, more preferably 0.7% by number or less, even more preferably 0.5% by number or less, and even more preferably 0.4% by number or less. Of all particles, the content of particles having a particle size of 100 μm or more is preferably 0.015 to 1 number%, more preferably 0.017 to 0.7 number%, even more preferably 0.02 to 0.5 number%, even more preferably 0.03 to 0.5 number%, and even more preferably 0.1 to 0.4 number%. From the viewpoint of improving the feel in use, particularly suppressing roughness to the touch, the content of particles having a particle size of 100 μm or more and a hardness of 5 gf or more of all particles constituting the powdered or granular carbonated foamable composition according to the first embodiment of the present invention is 0.10 number% or less, preferably 0.07 number% or less, more preferably 0.05 number% or less, even more preferably 0.04 number% or less, and even more preferably 0 number%. From the viewpoint of productivity, the lower limit may be, for example, preferably 0.001% by number or more, more preferably 0.005% by number or more, and even more preferably 0.01% by number or more.

[0036] Furthermore, it is preferable that particles having a hardness of 5 gf or more account for 45% by number or less of particles having a particle diameter of 100 μm or more. If the number of such particles is 45% by number or less, the feeling of use can be improved, and in particular roughness to the touch can be suppressed. Among particles having a particle diameter of 100 μm or more, particles having a hardness of 5 gf or more account for preferably 40% by number or less, more preferably 35% by number or less, and even more preferably 30% by number or less. The lower limit is not particularly limited, and it is preferable that it is not included, i.e., 0% by number. However, from the viewpoint of productivity, it is preferably 1% by number or more, more preferably 5% by number or more, and even more preferably 10% by number or more.

[0037] The content of fine powder having a particle size of 10 μm or less of all particles constituting the powdered or granular carbonated foaming composition according to the first embodiment of the present invention is preferably 3.5% by mass or less, more preferably 3.3% by mass or less, even more preferably 3.0% by mass or less, even more preferably 2.0% by mass or less, and even more preferably 1.0% by mass or less, from the viewpoints of improving usability and storage stability, and particularly preventing choking. From the viewpoint of productivity, it is preferably 0.001% by mass or more, more preferably 0.002% by mass or more, and even more preferably 0.003% by mass or more. The content of fine powder having a particle size of 10 μm or less of all particles is preferably 0.001% by mass or more and 3.5% by mass or less, more preferably 0.002% by mass or more and 3.3% by mass or less, even more preferably 0.003% by mass or more and 3.0% by mass or less, even more preferably 0.003% by mass or more and 2.0% by mass or less, and even more preferably 0.003% by mass or more and 1.0% by mass or less. Furthermore, from the viewpoint of improving storage stability, the average hardness of particles having a particle diameter of 100 μm or more is preferably 0.3 gf or more, more preferably 0.4 gf or more, and even more preferably 0.5 gf or more. Furthermore, from the viewpoint of improving the feeling of use, particularly suppressing roughness to the touch, it is preferably less than 5 gf, more preferably 4.7 gf or less, and even more preferably 4.5 gf or less. The average hardness of particles having a particle diameter of 100 μm or more is preferably 0.3 gf or more and less than 5 gf, more preferably 0.4 gf or more and 4.7 gf or less, and even more preferably 0.5 gf or more and 4.5 gf or less. The average hardness is measured by sampling at least 20 particles having a particle diameter of 100 μm or more, measuring the hardness of each particle one by one using a microcompression tester (MCT series, manufactured by Shimadzu Corporation), and calculating the average value.

[0038] The powdered or granular carbonated foaming composition according to the first embodiment of the present invention can be suitably used as a foaming aid that aids in foaming surfactant-containing compositions, particularly hair cosmetics such as shampoos and conditioners. The powdered or granular carbonated foaming composition according to the first embodiment of the present invention can be provided enclosed in a packaging material. The powdered or granular carbonated foaming composition according to the first embodiment of the present invention is unlikely to swell due to the generation of carbon dioxide gas even when sealed and stored in a packaging material, and therefore has excellent storage stability in the form of a product sealed in a packaging material. The shape of the packaging material is not particularly limited as long as it has a structure that can seal the powdered or granular carbonated foaming composition, and examples of such shapes include a bag shape and a bottle shape. Among these, a bag-shaped packaging material is preferred. The material constituting the packaging material is also not particularly limited as long as it can seal the powdered or granular carbonated foaming composition. For example, a bag-shaped packaging material can be a resin film or a laminate film in which an inorganic thin film made of a metal or metal oxide is laminated on a resin film.

[0039] <Method for producing powdered or granular carbonated foaming composition> The method for producing a powdered or granular carbonated foaming composition according to the first embodiment of the present invention includes a step of granulating at least one of a carbonate or an organic acid. One of the carbonate or the organic acid may be used as a raw material without granulation, or the carbonate and the organic acid may be granulated, respectively, and used as granulated particles of the carbonate and granulated particles of the organic acid. By using at least one of the carbonate or the organic acid as granulated particles, it is possible to produce a powdered or granular carbonated foaming composition with an adjusted particle size and hardness, thereby achieving both storage stability and a good usability.

[0040] The method for producing a powdered or granular carbonated foaming composition according to the first embodiment of the present invention preferably includes a step of mixing particles (A) containing a carbonate and particles (B) containing an organic acid. The particles (A) containing a carbonate preferably do not contain an organic acid. Furthermore, the particles (A) containing a carbonate may be particles of the raw material itself, or may be granulated particles of a carbonate. On the other hand, the particles (B) containing an organic acid preferably do not contain a carbonate. Furthermore, the particles (B) containing an organic acid may be particles of the raw material itself, or may be granulated particles of an organic acid. It is preferable that either the particles (A) or the particles (B), or both the particles (A) and the particles (B) contain an excipient.

[0041] When granulating a carbonate, it is preferable to obtain granulated particles by granulating the carbonate with other components constituting the detergent composition other than the organic acid, preferably one or more selected from the group consisting of surfactants, excipients, binders, and moisture absorbents, more preferably all components other than the organic acid.When granulating an organic acid, it is preferable to obtain granulated particles by granulating the organic acid with other components constituting the detergent composition other than the carbonate, preferably one or more selected from the group consisting of surfactants, excipients, binders, and moisture absorbents, more preferably all components other than the carbonate.

[0042] It is also preferable to use carbonates and organic acids having a median diameter of 170 μm or less as raw materials. More specifically, from the viewpoint of improving productivity and storage stability, the median diameter of the carbonates used as raw materials is preferably 10 μm or more, more preferably 15 μm or more, and even more preferably 20 μm or more. From the viewpoint of improving foamability and feel, the median diameter is preferably 170 μm or less, more preferably 150 μm or less, even more preferably 120 μm or less, still more preferably 110 μm or less, still more preferably 100 μm or less, still more preferably 95 μm or less, and even more preferably 90 μm or less. The median diameter of the carbonate used as a raw material is preferably 10 μm or more and 170 μm or less, more preferably 10 μm or more and 150 μm or less, even more preferably 15 μm or more and 120 μm or less, still more preferably 20 μm or more and 110 μm or less, still more preferably 20 μm or more and 100 μm or less, still more preferably 20 μm or more and 95 μm or less, and still more preferably 20 μm or more and 90 μm or less. Furthermore, in addition to the above-mentioned viewpoints, from the viewpoint of further improving foamability and texture, the median diameter of the carbonate used as a raw material when granulating the carbonate is even more preferably 100 μm or less, even more preferably 90 μm or less, even more preferably 70 μm or less, even more preferably 60 μm or less, and even more preferably 10 μm or more and 100 μm or less, even more preferably 10 μm or more and 90 μm or less, even more preferably 10 μm or more and 70 μm or less, and even more preferably 10 μm or more and 60 μm or less. Furthermore, when the carbonate is used as a raw material without granulation, from the same viewpoint as above and from the viewpoint of the balance between storage stability and feel, the median diameter is more preferably 80 μm or more, even more preferably 90 μm or more, and even more preferably 110 μm or less, in addition to the above ranges, and even more preferably 80 μm or more and 170 μm or less, even more preferably 80 μm or more and 150 μm or less, even more preferably 90 μm or more and 120 μm or less, and even more preferably 90 μm or more and 110 μm or less.

[0043] The organic acid raw material particles preferably have a median diameter of 10 μm or more, more preferably 15 μm or more, and even more preferably 20 μm or more from the viewpoints of improving productivity and storage stability, and preferably 500 μm or less, more preferably 400 μm or less, even more preferably 350 μm or less, still more preferably 170 μm or less, still more preferably 150 μm or less, still more preferably 120 μm or less, still more preferably 110 μm or less, still more preferably 100 μm or less, still more preferably 95 μm or less, and still more preferably 90 μm or less from the viewpoints of improving foamability and feel. The median diameter of the organic acid as a raw material is preferably 10 μm or more and 500 μm or less, more preferably 10 μm or more and 400 μm or less, even more preferably 10 μm or more and 350 μm or less, preferably 10 μm or more and 170 μm or less, more preferably 10 μm or more and 150 μm or less, even more preferably 15 μm or more and 120 μm or less, still more preferably 20 μm or more and 110 μm or less, still more preferably 20 μm or more and 100 μm or less, still more preferably 20 μm or more and 95 μm or less, and still more preferably 20 μm or more and 90 μm or less. Furthermore, in addition to the above-mentioned viewpoints, from the viewpoint of further improving foaming properties and texture, the median diameter of the organic acid used as a raw material when granulating the organic acid is even more preferably 30 μm or more, even more preferably 70 μm or less, even more preferably 60 μm or less, and even more preferably 10 μm or more and 100 μm or less, even more preferably 10 μm or more and 90 μm or less, even more preferably 10 μm or more and 70 μm or less, and even more preferably 10 μm or more and 60 μm or less.Furthermore, when the organic acid is used as a raw material without granulation, the preferred median diameter is, in addition to the above ranges, even more preferably 80 μm or more, even more preferably 90 μm or more, and even more preferably 110 μm or less, from the same viewpoint as above and from the viewpoint of the balance between storage stability and feel, and is even more preferably 80 μm or more and 170 μm or less, even more preferably 80 μm or more and 150 μm or less, even more preferably 90 μm or more and 120 μm or less, and even more preferably 90 μm or more and 110 μm or less.

[0044] The carbonate and organic acid are preferably produced so as to have the following median diameters. From the viewpoint of storage stability, the median diameter of the carbonate in the powdered or granular carbonated foamable composition (product) is preferably 80 μm or more, more preferably 90 μm or more, even more preferably 100 μm or more, still more preferably 110 μm or more, and even more preferably 120 μm or more. From the viewpoint of productivity, it is preferably 500 μm or less, more preferably 400 μm or less, and even more preferably 300 μm or less. The median diameter of the granulated carbonate in the powdered or granular carbonated foamable composition (product) is preferably 80 μm or more and 500 μm or less, more preferably 90 μm or more and 400 μm or less, and even more preferably 100 μm or more and 300 μm or less. From the viewpoint of improving the feel in use, particularly suppressing roughness to the touch, it is preferable to granulate the carbonate, and in that case, it is preferable that the median diameter of the carbonate after granulation but before blending is within the above range. In addition to the above-mentioned preferred range, the median diameter of the granulated product is even more preferably 110 μm or more and 300 μm or less, and even more preferably 120 μm or more and 300 μm or less, from the viewpoint of further improving storage stability. When the carbonate is used as a raw material, the preferred range of the median diameter of the carbonate in the powdered or granular carbonated foamable composition (product) is as described above for the median diameter of the carbonate as raw material particles.

[0045] Furthermore, from the viewpoint of storage stability, the median diameter of the organic acid in the powdered or granular carbonated foamable composition (product) is preferably 80 μm or more, more preferably 90 μm or more, even more preferably 100 μm or more, still more preferably 110 μm or more, and even more preferably 120 μm or more. From the viewpoint of productivity, it is preferably 500 μm or less, more preferably 400 μm or less, and even more preferably 300 μm or less. The median diameter of the granulated organic acid in the powdered or granular carbonated foamable composition (product) is preferably 80 μm or more and 500 μm or less, more preferably 90 μm or more and 400 μm or less, and even more preferably 100 μm or more and 300 μm or less. Note that, from the viewpoint of improving the feel in use, particularly suppressing roughness to the touch, it is preferable to granulate the organic acid, and in that case, it is preferable that the median diameter of the organic acid after granulation but before blending is within the above range. In addition to the above-mentioned preferred range, the median diameter of the granulated product is even more preferably 110 μm or more and 300 μm or less, and even more preferably 120 μm or more and 300 μm or less, from the viewpoint of further improving storage stability. When the organic acid is used as a raw material, the preferred range of the median diameter of the organic acid in the powdered or granular carbonated foamable composition (product) is as described above for the median diameter of the organic acid as raw material particles.

[0046] Here, the median diameter (D50) means the particle diameter at which the cumulative volume frequency calculated by volume fraction is 50% calculated from the smallest particle diameter. Specifically, the median diameter can be measured by the method described in the Examples.

[0047] From the viewpoint of improving the feel to the touch, particles having a particle size of preferably 500 μm or more, more preferably 400 μm or more, and even more preferably 300 μm or more may be removed in advance using a sieve from the raw material particles, and then granulation may be performed. Note that the raw material components other than the carbonate and the organic acid have a median diameter equal to or smaller than the median diameter of the carbonate and the organic acid, and are usually 170 μm or less, for example, 5 μm to 150 μm.

[0048] As a granulation method, any of fluidized bed granulation, stirring granulation, tumbling granulation, and extrusion granulation can be used. Among these, fluidized bed granulation is preferred from the viewpoint of improving the solubility of the powdered or granular carbonated foaming composition in liquid (water). Specifically, for example, raw material particles are loaded into a fluidized bed granulator, and a binder solution prepared by dissolving a binder in water, ethanol, or a mixture thereof is added to the uniformly mixed powder and granules, thereby granulating the composition. As mentioned above, from the viewpoint of improving storage stability, it is preferable that the same granulated particles do not contain both carbonate and organic acid. The granulated particles can be mixed with ungranulated particles by known means to produce a powdered or granular carbonated foaming composition. When the carbonate and organic acid are granulated separately, the respective granulated particles (granulated particles containing carbonate and granulated particles containing organic acid) can be mixed by known means to produce a powdered or granular carbonated foaming composition.

[0049] The binder used in the granulation process of the present invention is preferably selected from the water-soluble polymers described above. From the viewpoints of immediate solubility and productivity of the carbonated foamable composition, one or more selected from hydroxyethyl cellulose, hydroxymethyl cellulose, carboxymethyl cellulose, xanthan gum, carrageenan, and guar gum can be used. Preferably, one or more selected from hydroxyethyl cellulose, hydroxymethyl cellulose, carboxymethyl cellulose, xanthan gum, and carrageenan are used. Furthermore, from the viewpoint of productivity, the binder content (solids content) in the binder liquid is preferably 0.1% by mass or more, more preferably 0.3% by mass or more, even more preferably 0.5% by mass or more, and preferably 10% by mass or less, more preferably 8% by mass or less, and even more preferably 5% by mass or less. The binder content in the binder liquid is preferably 0.1 to 10% by mass, more preferably 0.3 to 8% by mass, and even more preferably 0.5 to 5% by mass. Furthermore, from the viewpoint of immediate solubility, the content (solid content) of the binder in the carbonated foamable composition is preferably 0.01% by mass or more, more preferably 0.05% by mass or more, even more preferably 0.1% by mass or more, and is preferably 10% by mass or less, more preferably 5% by mass or less, even more preferably 3% by mass or less. The content of the binder in the carbonated foamable composition is preferably 0.01 to 10% by mass, more preferably 0.05 to 5% by mass, even more preferably 0.1 to 3% by mass.

[0050] <Method of Using Powdered or Granular Carbonated Foaming Composition> The powdered or granular carbonated foaming composition according to the first embodiment of the present invention is used to bring the surfactant-containing composition into contact with a surfactant-containing composition during use to form the surfactant-containing composition into a foamy dosage form. More specifically, when the powdered or granular carbonated foaming composition according to the first embodiment of the present invention is brought into contact with a surfactant-containing composition during use, the liquid component (water) contained in the surfactant-containing composition, or a liquid component (water) added as needed, causes a reaction between the carbonate and the organic acid contained in the powdered or granular carbonated foaming composition, generating carbon dioxide gas, thereby forming the surfactant-containing composition into a foamy dosage form. The powdered or granular carbonated foaming composition according to the first embodiment of the present invention reacts with water to naturally initiate foaming, thereby enabling the surfactant-containing composition to foam quickly and eliminating the need for a time-consuming and labor-intensive special foaming process, making it easy to use.

[0051] The method for using the powdered or granular carbonated foaming composition according to the first embodiment of the present invention also serves as a foaming method and a cleaning method. That is, it is a method for foaming a surfactant composition, in which the powdered or granular carbonated foaming composition according to the first embodiment of the present invention is brought into contact with a surfactant-containing composition to form the surfactant-containing composition into a foamy formulation. It is also a cleaning method, in which the powdered or granular carbonated foaming composition according to the first embodiment of the present invention is brought into contact with a surfactant-containing composition to form the surfactant-containing composition into a foamy formulation, and the foamy surfactant composition is applied to the surface of the human body for cleaning. It is also a method for washing hair, in which the powdered or granular carbonated foaming composition according to the first embodiment of the present invention is brought into contact with a surfactant-containing composition to form the surfactant-containing composition into a foamy formulation, and the foamy surfactant composition is applied to hair for cleaning.

[0052] In this specification, the surfactant-containing composition is not particularly limited as long as it is a composition containing a surfactant and is applied to the surface of the human body, including skin and hair, and examples thereof include hair cosmetics, facial cleansers, and body cleansers (body shampoos). Examples of hair cosmetics include shampoos, rinses, conditioning agents, treatments, styling agents, hair dyes, and hair growth agents. Among the above, from the viewpoint of more effectively exhibiting the effects of the present invention, the surfactant-containing composition is preferably a hair cosmetic, more preferably one selected from the group consisting of shampoos, rinses, conditioning agents, and treatments, and even more preferably a shampoo. Furthermore, from the viewpoint of more effectively exhibiting the effects of the present invention, the surfactant-containing composition is preferably in a liquid form.

[0053] When hair cosmetics are applied directly to hair, friction occurs between the hair and scalp during lathering or blending, which can place a strain on the hair and scalp. However, by using the powdered or granular carbonated foam composition according to the first embodiment of the present invention in combination, the hair cosmetics can be applied as a foam-like hair cosmetics, thereby reducing the strain on the hair and scalp. Furthermore, the powdered or granular carbonated foam composition according to the first embodiment of the present invention has excellent instant solubility, and therefore, even when dissolved in a hair cosmetics, it has an excellent feel on the skin (touch). Furthermore, the powdered or granular carbonated foam composition according to the first embodiment of the present invention can be used in combination with hair cosmetics such as commercially available shampoos and conditioners, and does not require special containers or tools for lathering, making it highly versatile. In particular, when packaged in single-use containers, it can be easily carried and used on the go. Furthermore, the carbon dioxide gas can be expected to promote blood circulation.

[0054] More specifically, the method of using the powdered or granular carbonated foaming composition according to the first embodiment of the present invention involves, for example, placing the carbonated foaming composition in the palm of the hand, adding a surfactant-containing composition to the carbonated foaming composition, thoroughly blending the composition with water on the palm, lightly lathering the composition, and applying it to the face, hair, entire body, or other target area. The order of placing the compositions on the palm is not important; the surfactant-containing composition may be placed in the palm and then the powdered or granular carbonated foaming composition may be added to the surfactant-containing composition. However, from the viewpoint of reducing scattering of the powdered or granular carbonated foaming composition and more effectively foaming the surfactant-containing composition, it is preferable to place the powdered or granular carbonated foaming composition in the palm first and then add the surfactant-containing composition. Furthermore, if foaming of the surfactant-containing composition is slow, for example, additional water may be added as needed. The timing of adding water is not particularly limited. For example, the surfactant-containing composition may be added after contacting the powdered or granular carbonated foaming composition with water, or the powdered or granular carbonated foaming composition may be added after contacting the surfactant-containing composition with water. Alternatively, water may be added after contacting the powder or granular carbonated foaming composition with the surfactant-containing composition. From the viewpoint of more effectively foaming the surfactant-containing composition, it is preferable to add the surfactant composition after contacting the powder or granular carbonated foaming composition with water. However, from the viewpoint of improving the usability, it is preferable to use the surfactant-containing composition without adding water. When the surfactant-containing composition is liquid, the amount of liquid surfactant-containing composition added to the powder or granular carbonated foaming composition is such that the mass ratio of the powder or granular carbonated foaming composition to the surfactant-containing composition (powder or granular carbonated foaming composition / surfactant-containing composition) is preferably 1 / 30 or more, more preferably 1 / 25 or more, even more preferably 1 / 20 or more, and preferably 1 / 0.5 or less, more preferably 1 / 1 or less, even more preferably 1 / 2 or less, from the viewpoint of improving the solubility of the powder or granular carbonated foaming composition and improving the foaming properties.Furthermore, the amount of water added as needed is preferably 0.1 g or more and 20 g or less, more preferably 0.5 g or more and 15 g or less, and even more preferably 1 g or more and 10 g or less per 1 g of powdered or granular carbonated foaming composition, from the viewpoints of solubility and foaming properties.

[0055] When the surfactant-containing composition is liquid, from the viewpoint of foam retention, the powder or granular carbonated foaming composition according to the first embodiment of the present invention is applied to an object such as hair within 5 minutes after contact with the liquid surfactant-containing composition (or, if the powder or granular carbonated foaming composition is first contacted with water, after contact of the powder or granular carbonated foaming composition with water), more preferably within 3 minutes, even more preferably within 2 minutes, and even more preferably within 1 minute 30 seconds. The temperature of the water added to the powder or granular carbonated foaming composition as needed is not particularly limited, but is preferably 15°C or higher and 50°C or lower, more preferably 15°C or higher and 45°C or lower, and even more preferably 20°C or higher and 45°C or lower.

[0056] <Hair Cosmetic Kit> The hair cosmetic kit according to the first embodiment of the present invention comprises a powder or granular carbonated foaming composition and a surfactant-containing composition. The powder or granular carbonated foaming composition and surfactant-containing composition used in the hair cosmetic kit according to the first embodiment of the present invention are the same as those described above. When used, the hair cosmetic kit is used by bringing the powder or granular carbonated foaming composition into contact with the surfactant-containing composition to form the surfactant-containing composition into a foam-like formulation.

[0057] [Second Embodiment: Powder or Granular Detergent Composition] The powder or granular detergent composition according to the second embodiment of the present invention contains a carbonate, an organic acid, and a surfactant, contains 30% by mass or more of particles having a particle size of 100 μm or more, and the content of particles having a particle size of 100 μm or more and a hardness of 5 gf or more is 0.10% by number or less. The powder or granular detergent composition according to the second embodiment of the present invention (hereinafter also simply referred to as the detergent composition) exhibits excellent detergency not only due to the cleansing action of the surfactant, but also due to the reaction between the carbonate and the organic acid when the detergent composition is dissolved in water, generating carbon dioxide gas. The powder or granular detergent composition according to the second embodiment of the present invention is mainly used for washing the face, body, etc. Such detergent compositions to be applied directly to the skin of the face, body, etc. are required to have a good feel when lathered, i.e., not feel rough to the touch, and also need to be dissolved instantly in a short time, so it is desirable that the particles constituting the detergent composition have a small particle size. However, it was found that when the particle size of a detergent composition is small, the addition of a moisture absorbent is insufficient, and carbon dioxide gas generation in the packaging material cannot be suppressed, resulting in poor storage stability. Therefore, in order to suppress carbon dioxide gas generation during storage, it is necessary to increase the particle size of the carbonate or organic acid. The inventors conducted extensive research to address these conflicting needs and found that the hardness and particle size of the particles constituting a detergent composition are closely related to the feel to the touch during use and storage stability. They also found that adjusting the hardness and particle size of the particles in the detergent composition makes it possible to achieve both good feel to the touch and storage stability, thereby completing the present invention. According to the powder or granular detergent composition of the second embodiment of the present invention, by containing a predetermined amount or more of particles having a particle size of 100 μm or more and setting the content of particles having a particle size of 100 μm or more and a hardness of 5 gf or more to a predetermined number percent or less, roughness to the touch can be suppressed and a good usability can be achieved.

[0058] <Carbonate> The powder or granular detergent composition according to the second embodiment of the present invention contains a carbonate. The carbonate used in the detergent composition according to the second embodiment of the present invention is as described in the first embodiment, and the preferred range is also the same.

[0059] From the viewpoint of improving foaming property, the content of carbonate in the powder or granular detergent composition is preferably 10% by mass or more, more preferably 15% by mass or more, even more preferably 20% by mass or more, and still more preferably 30% by mass or more. From the viewpoint of improving foam retention, the content of carbonate in the powder or granular detergent composition is preferably 60% by mass or less, more preferably 55% by mass or less, and even more preferably 50% by mass or less. The content of carbonate in the powder or granular detergent composition is preferably 10% by mass or more and 60% by mass or less, more preferably 15% by mass or more and 55% by mass or less, even more preferably 20% by mass or more and 50% by mass or less, and still more preferably 30% by mass or more and 50% by mass or less.

[0060] The carbonate used in the powder or granular detergent composition according to the second embodiment of the present invention may be contained in the form of raw material particles (hereinafter also referred to as "raw material particles"), or may be contained as particles granulated with other components as needed (hereinafter also referred to as "granulated particles"), or a mixture of these. When the carbonate is in the form of granulated particles, the carbonate may be granulated alone or together with components other than the carbonate. However, in the case of granulated particles, it is preferable that the carbonate does not contain an organic acid from the viewpoint of storage stability. Here, "not containing" means that the carbonate is substantially not contained, and the amount of organic acid in the granulated particles is preferably less than 1% by mass, more preferably 0% by mass. Furthermore, the carbonate is preferably granulated together with components other than the organic acid, such as one or more selected from the group consisting of surfactants, excipients, binders, and hygroscopic agents, and is particularly preferably granulated together with all components other than the organic acid. Granulating the carbonate together with the components other than the organic acid can reduce the amount of fine powder derived from the components other than the organic acid, thereby preventing choking caused by the scattering of fine powder during use of the detergent composition.

[0061] <Organic Acid> The powder or granular detergent composition according to the second embodiment of the present invention contains an organic acid. The organic acid used in the present invention is as described in the first embodiment, and the preferred range is also the same.

[0062] From the viewpoint of improving foaming property, the content of the organic acid in the powder or granular detergent composition is preferably 5% by mass or more, more preferably 7% by mass or more, and even more preferably 10% by mass or more. From the viewpoint of improving foam retention, the content is preferably 60% by mass or less, more preferably 50% by mass or less, even more preferably 40% by mass or less, still more preferably 30% by mass or less, and even more preferably 20% by mass or less. The content of the organic acid in the powder or granular detergent composition is preferably 5% by mass or more and 60% by mass or less, more preferably 5% by mass or more and 50% by mass or less, still more preferably 7% by mass or more and 40% by mass or less, still more preferably 7% by mass or more and 30% by mass or less, and even more preferably 10% by mass or more and 20% by mass or less.

[0063] The organic acid used in the powder or granular detergent composition according to the second embodiment of the present invention may be contained in the form of raw material particles (raw material particles), or may be contained as particles granulated with other components as needed (granulated particles), or may be a mixture of these. When the organic acid is in the form of granulated particles, the organic acid may be granulated alone or together with components other than the organic acid. However, in the case of granulated particles, it is preferable that the organic acid does not contain carbonate from the viewpoint of storage stability. Here, "not containing" means that the organic acid is substantially not contained, and the amount of carbonate in the granulated particles is preferably less than 1% by mass, more preferably 0% by mass. Furthermore, the organic acid is preferably granulated together with components other than carbonate, such as one or more selected from the group consisting of surfactants, excipients, binders, and hygroscopic agents, and is particularly preferably granulated together with all components other than carbonate. Granulating the organic acid together with components other than carbonate can reduce the amount of fine powder derived from components other than carbonate, thereby preventing choking caused by scattering of fine powder during use of the detergent composition.

[0064] <Surfactant> The cleaning composition according to the second embodiment of the present invention contains a surfactant. Examples of surfactants used in the cleaning composition according to the second embodiment of the present invention include anionic surfactants, cationic surfactants, amphoteric surfactants, and nonionic surfactants, and one or more of these surfactants may be used. Specific examples of each surfactant are shown below.

[0065] [Anionic Surfactants] Specific examples of anionic surfactants include N-acylamino acid salts, N-acyl-N-methylamino acid salts, fatty acid salts, salts of esters of fatty acids having from 5 to 18 carbon atoms and isethionic acid, alkyl or alkenyl sulfonates having from 10 to 18 carbon atoms, polyoxyalkylene alkyl ether sulfate salts, and linear alkylbenzene sulfonates.

[0066] Examples of the counter ion of the anionic group of the anionic surfactant include alkali metal ions such as sodium ion and potassium ion; alkaline earth metal ions such as calcium ion and magnesium ion; ammonium ion; and alkanolammonium having 1 to 3 alkanol groups having 2 or 3 carbon atoms (for example, monoethanolammonium, diethanolammonium, triethanolammonium, triisopropanolammonium, etc.), of which sodium ion and potassium ion are preferred, and sodium ion is more preferred.

[0067] [Cationic Surfactant] Examples of cationic surfactants include quaternary ammonium salts such as alkyltrimethylammonium salts, alkoxyalkyltrimethylammonium salts, dialkyldimethylammonium salts, alkylamidoalkyltrimethylammonium salts, benzalkonium chloride, and alkylpyridinium salts.

[0068] Examples of counter ions of the cationic group of the cationic surfactant include alkyl sulfate ions having from 1 to 3 carbon atoms, sulfate ions, phosphate ions, carboxylate ions having from 1 to 3 carbon atoms (formate ions, acetate ions, propionate ions), and halide ions such as chloride ions and bromide ions. Among these, from the viewpoints of ease of production and ease of availability of raw materials, halide ions are preferred, and chloride ions are more preferred.

[0069] [Amphoteric Surfactant] Examples of the amphoteric surfactant include one or more selected from the group consisting of alkylamine oxides having an alkyl group with 10 to 18 carbon atoms and alkylbetaines having an alkyl group with 10 to 18 carbon atoms.

[0070] [Nonionic Surfactants] Specific examples of nonionic surfactants include one or more selected from the group consisting of polyoxyethylene alkyl ethers, polyoxyethylene alkenyl ethers, polyoxyethylene sorbitan fatty acid esters, polyoxyethylene sorbit fatty acid esters, polyoxyethylene fatty acid esters, alkyl glucosides, alkyl alkanolamides, alkyl glyceryl ethers, higher fatty acid sucrose esters, polyglycerin fatty acid esters, polyoxyethylene hydrogenated castor oil, and alkyl saccharides. Among these, anionic surfactants are preferred from the viewpoints of good solubility in water and good foaming, and salts of esters of fatty acids having 5 to 18 carbon atoms and isethionic acid are more preferred. Furthermore, amino acid-based anionic surfactants such as N-acylamino acid salts and N-acyl-N-methylamino acid salts are preferred from the viewpoint of low irritation.

[0071] The surfactant content in the powder or granular detergent composition is preferably 10% by mass or more, more preferably 15% by mass or more, and even more preferably 20% by mass or more, from the viewpoint of improving foaming ability. From the viewpoint of improving foam-rinsing properties, it is preferably 50% by mass or less, more preferably 45% by mass or less, even more preferably 40% by mass or less, and even more preferably 35% by mass or less. The surfactant content in the detergent composition is preferably 10% by mass or more and 50% by mass or less, more preferably 15% by mass or more and 45% by mass or less, even more preferably 15% by mass or more and 40% by mass or less, and even more preferably 20% by mass or more and 35% by mass or less.

[0072] In the powder or granular detergent composition, the mass ratio of the total amount of carbonate and organic acid to the surfactant [(carbonate + organic acid) / surfactant] is preferably 0.1 or more, more preferably 1.0 or more, even more preferably 1.5 or more, from the viewpoint of foaming ability, and is preferably 20 or less, more preferably 10 or less, even more preferably 5 or less, from the viewpoint of improving detergency. The mass ratio of the total amount of carbonate and organic acid [(carbonate + organic acid) / surfactant] is preferably 0.1 or more and 20 or less, more preferably 1.0 or more and 10 or less, even more preferably 1.5 or more and 5 or less. In the powder or granular detergent composition, the mass ratio of the organic acid to the carbonate [organic acid / carbonate] is preferably 0.05 or more, more preferably 0.1 or more, even more preferably 0.2 or more, and preferably 10 or less, more preferably 5.0 or less, even more preferably 1.0 or less, from the viewpoint of foaming ability. The mass ratio of the organic acid to the carbonate [organic acid / carbonate] is preferably 0.05 or more and 10 or less, more preferably 0.1 or more and 5.0 or less, and even more preferably 0.2 or more and 1.0 or less.

[0073] The total amount of carbonate and organic acid in the powder or granular detergent composition is preferably 35% by mass or more, more preferably 40% by mass or more, even more preferably 45% by mass or more, from the viewpoint of foaming ability, and preferably 70% by mass or less, more preferably 65% ​​by mass or less, even more preferably 60% by mass or less, from the viewpoint of improving foam retention. The total amount of carbonate and organic acid in the powder or granular detergent composition is preferably 35% by mass or more and 70% by mass or less, more preferably 40% by mass or more and 65% by mass or less, even more preferably 45% by mass or less. The total amount of carbonate, organic acid, and surfactant in the powder or granular detergent composition is preferably 50% by mass or more, more preferably 60% by mass or more, even more preferably 70% by mass or more, from the viewpoint of improving detergency and foaming ability, and preferably 95% by mass or less, more preferably 90% by mass or less, even more preferably 85% by mass or less, from the viewpoint of improving foam retention. The total amount of carbonate, organic acid, and surfactant in the powder or granular detergent composition is preferably 50% by mass or more and 95% by mass or less, more preferably 60% by mass or more and 90% by mass or less, and even more preferably 70% by mass or more and 85% by mass or less.

[0074] <Moisture Absorbent> The powder or granular detergent composition according to the second embodiment of the present invention preferably further contains a moisture absorbent. The moisture absorbent used in the present invention is as described in the first embodiment, and the preferred range is also the same. From the viewpoint of improving storage stability, the content of the moisture absorbent in the powder or granular detergent composition is preferably 0.01% by mass or more, more preferably 0.1% by mass or more, even more preferably 1% by mass or more, still more preferably 2% by mass or more, and even more preferably 4% by mass or more. From the viewpoint of improving foaming property, the content of the moisture absorbent in the powder or granular detergent composition is preferably 10% by mass or less, more preferably 9% by mass or less, and even more preferably 8% by mass or less. The content of the moisture absorbent in the powder or granular detergent composition is preferably 0.01% by mass or more and 10% by mass or less, more preferably 0.1% by mass or more and 9% by mass or less, even more preferably 1% by mass or more and 8% by mass or less, still more preferably 2% by mass or more and 8% by mass or less, and even more preferably 4% by mass or more and 8% by mass or less.

[0075] <Other Components> The powder or granular detergent composition according to the second embodiment of the present invention may contain components commonly used in powder or granular detergent compositions, provided that the purpose of the present invention is not impaired. Examples of such other components include excipients, binders, natural colorants, humectants, anti-inflammatory agents, disinfectants, antiperspirants, antioxidants, fragrances, and mixtures thereof. The excipients used in the present invention are as described in the first embodiment, and the preferred ranges are also the same. From the viewpoints of solubility, granulation ability, foaming ability, and storage stability, the content of the excipient in the detergent composition is preferably 5% by mass or more, more preferably 10% by mass or more, and preferably 50% by mass or less, more preferably 40% by mass or less, and even more preferably 30% by mass or less. The content of the excipient in the detergent composition is preferably 5% by mass or more and 50% by mass or less, more preferably 10% by mass or more and 40% by mass or less, and even more preferably 10% by mass or more and 30% by mass or less.

[0076] Examples of binders used in the present invention include hydroxyethyl cellulose, hydroxymethyl cellulose, carboxymethyl cellulose, xanthan gum, and carrageenan, and one or more of these may be used. From the viewpoints of immediate solubility and productivity, the content of the binder in the powder or granular detergent composition is preferably 0.1% by mass or more, more preferably 0.3% by mass or more, even more preferably 0.5% by mass or more, and preferably 10% by mass or less, more preferably 5% by mass or less, and even more preferably 3% by mass or less. The content of the binder in the powder or granular detergent composition is preferably 0.1% by mass or more and 10% by mass or less, more preferably 0.3% by mass or more and 5% by mass or less, and even more preferably 0.5% by mass or more and 3% by mass or less.

[0077] <Powder or Granular Detergent Composition> The powder or granular detergent composition according to the second embodiment of the present invention contains 30% by mass or more of particles having a particle size of 100 μm or more, and the content of particles having a particle size of 100 μm or more and a hardness of 5 gf or more among the particles having a particle size of 100 μm or more is 0.10% by number or less. That is, the powder or granular detergent composition according to the second embodiment of the present invention contains 30% by mass or more of particles having a particle size of 100 μm or more, and the content of particles having a particle size of 100 μm or more and a hardness of 5 gf or more among the particles having a particle size of 100 μm or more is 0.10% by number or less. The presence of 30% by mass or more of particles having a particle size of 100 μm or more can improve storage stability, and the content of particles having a particle size of 100 μm or more and a hardness of 5 gf or more is 0.10% by number or less can suppress roughness to the touch and improve usability.

[0078] Furthermore, it is preferred that at least a portion of the particles having a particle size of 100 μm or more are granulated particles. From the viewpoint of improving the feel in use, particularly suppressing roughness to the touch, the content of granulated particles among the particles having a particle size of 100 μm or more is preferably more than 55% by number, more preferably more than 60% by number, even more preferably more than 65% by number, and even more preferably more than 70% by number, and even more preferably all being granulated particles. However, from the viewpoint of production efficiency, some particles may be contained as they are from the raw materials. Granulated particles allow for easy adjustment of hardness, making it possible to adjust the content of particles having a particle size of 100 μm or more and a hardness of 5 gf or more. The content of granulated particles among the particles having a particle size of 100 μm or more constituting the powder or granular detergent composition according to the second embodiment of the present invention can be determined by sieving the particles through a sieve with a mesh size of 100 μm, observing the obtained particles having a particle size of 100 μm or more under SEM, and actually measuring the number ratio.

[0079] In general, the carbonate particles and organic acid particles used as raw materials have high hardness, and if large particle size raw materials are used as they are, the content of particles 100 μm or larger and having a hardness of 5 gf or larger will be high, and when the detergent composition is dissolved in water, the remaining particles will deteriorate the feel to the touch. However, by converting at least a portion of the particles 100 μm or larger into granulated particles, it is possible to reduce the content of particles with high hardness, suppress roughness to the touch, and improve the feel in use. An example of converting a portion into granulated particles is when either the organic acid or the carbonate is converted into granulated particles and the other is used as a raw material. More specifically, examples include a case in which the other components constituting the detergent composition other than the organic acid, preferably one or more selected from the group consisting of surfactants, excipients, binders, and moisture absorbents, more preferably all components other than the organic acid, and the carbonate are formed into granulated particles, and the organic acid is used as is without granulation; or a case in which the other components constituting the detergent composition other than the carbonate, preferably one or more selected from the group consisting of surfactants, excipients, binders, and moisture absorbents, more preferably all components other than the carbonate, and the organic acid are formed into granulated particles, and the carbonate is used as is without granulation. From the viewpoint of production efficiency, it is preferable to form the organic acid into granulated particles and use the carbonate as raw material particles. It is also preferable that the granulated particles contain a surfactant. It is preferable that the organic acid and the carbonate are not granulated together, but are each formed into separate, independent particles. By forming the organic acid and the carbonate into separate, independent particles, storage stability and foaming properties can be further improved.

[0080] The powder or granular detergent composition according to the second embodiment of the present invention preferably contains particles (A) containing a carbonate and particles (B) containing an organic acid. Here, it is preferable that particles (A) do not contain an organic acid, and particles (B) do not contain a carbonate. It is also preferable that particles (A) or particles (B) contain a surfactant, or that both particles (A) and (B) contain a surfactant. Specifically, the powder or granular detergent composition according to the second embodiment of the present invention may contain particles (A) containing a carbonate and particles (B) containing an organic acid and a surfactant, particles (A) containing a carbonate and a surfactant and particles (B) containing an organic acid, or particles (A) containing a carbonate and a surfactant and particles (B) containing an organic acid and a surfactant.

[0081] The content (mass proportion) of particles having a particle size of 100 μm or more among all particles constituting the powder or granular detergent composition according to the second embodiment of the present invention can be measured by a sieving method. The content (number proportion) of particles having a particle size of 100 μm or more among all particles constituting the powder or granular detergent composition according to the second embodiment of the present invention can be measured by the following method. (i) First, the content (number proportion) of particles having a particle size of 100 μm or more among all particles is calculated. Specifically, the particle size distribution is measured using a Camsizer XT (particle size measuring device, manufactured by RETSCH), and particles having a particle size of 1 to 3,000 μm in the obtained distribution are defined as the "total particles" in the present invention. The particle size distribution is evenly divided into 100 logarithms, and the range including 100 μm or more is counted as 100 μm or more to calculate the total number of particles having a particle size of 100 μm or more, and the content (number proportion) of particles having a particle size of 100 μm or more among all particles is then calculated. (ii) Next, the content (number ratio) of particles having a hardness of 5 gf or more among the particles having a particle size of 100 μm or more is calculated. Specifically, the powder or granular detergent composition is sieved through a sieve with a mesh size of 100 μm, and 20 or more particles are randomly sampled from the obtained particles having a particle size of 100 μm or more. The hardness of each particle is measured using a micro-compression tester (MCT series, manufactured by Shimadzu Corporation), and the content of particles having a hardness of 5 gf or more is calculated. This procedure is repeated three times to calculate the average value. The hardness of a particle can be determined by the load (gf) at the breaking point of the particle applied using the micro-compression tester. Note that if a particle breaks down in multiple stages, the load at the first breaking point (hereinafter also referred to as the first breaking point) is used as the hardness of the particle. (iii) Next, the content (number ratio) of particles having a particle size of 100 μm or more among all particles obtained in (i) above is multiplied by the content (number ratio) of particles having a hardness of 5 gf or more among particles having a particle size of 100 μm or more obtained in (ii) above, thereby calculating the content (number ratio) of particles having a particle size of 100 μm or more among all particles.

[0082] Of all particles constituting the powder or granular detergent composition according to the second embodiment of the present invention, particles having a particle size of 100 μm or more comprise 30% by mass or more, preferably 35% by mass or more, more preferably 40% by mass or more, even more preferably 50% by mass or more, still more preferably 55% by mass or more, even more preferably 65% ​​by mass or more, and even more preferably 70% by mass or more, from the viewpoint of storage stability. From the viewpoint of productivity, the composition preferably comprises 100% by mass or less, more preferably 95% by mass or less, and even more preferably 90% by mass or less. Of all particles, particles having a particle size of 100 μm or more comprise 30% by mass or more, preferably 30% by mass or more to 100% by mass, more preferably 35% by mass or more to 100% by mass, even more preferably 40% by mass or more to 95% by mass, still more preferably 50% by mass or more to 90% by mass, even more preferably 55% by mass or more to 90% by mass, still more preferably 65% ​​by mass or more to 90% by mass, and even more preferably 70% by mass or more to 90% by mass.

[0083] Furthermore, from the viewpoint of storage stability, the proportion of particles having a particle size of 100 μm or more among all particles constituting the powder or granular detergent composition according to the second embodiment of the present invention is preferably 0.015% by number or more, more preferably 0.017% by number or more, even more preferably 0.02% by number or more, even more preferably 0.03% by number or more, and even more preferably 0.1% by number or more. Ideally, the upper limit is 100% by number, but because fine powder is also included in the production process, from the viewpoint of productivity, the upper limit is preferably 1% by number or less, more preferably 0.7% by number or less, and even more preferably 0.5% by number or less. Of all particles, the proportion of particles having a particle size of 100 μm or more is preferably 0.015% by number or more and 1% by number or less, more preferably 0.017% by number or more and 0.7% by number or less, even more preferably 0.02% by number or more and 0.5% by number or less, even more preferably 0.03% by number or more and 0.5% by number or less, and even more preferably 0.1% by number or more and 0.5% by number or less. In order to improve the feel when used, particularly to suppress roughness to the touch, the content of particles having a particle size of 100 μm or more and a hardness of 5 gf or more of all particles constituting the powder or granular detergent composition according to the second embodiment of the present invention is 0.10% by number or less, preferably 0.07% by number or less, more preferably 0.05% by number or less, even more preferably 0.04% by number or less, and still more preferably 0% by number. From the viewpoint of productivity, the lower limit may be, for example, preferably 0.001% by number or more, more preferably 0.005% by number or more, and even more preferably 0.01% by number or more.

[0084] Furthermore, it is preferable that particles having a hardness of 5 gf or more account for 45% by number or less of particles having a particle diameter of 100 μm or more. If the number of such particles is 45% by number or less, the feeling of use can be improved, and in particular roughness to the touch can be suppressed. Among particles having a particle diameter of 100 μm or more, the number of particles having a hardness of 5 gf or more is preferably 40% by number or less, more preferably 35% by number or less, even more preferably 30% by number or less, and even more preferably 25% by number or less. The lower limit is not particularly limited, and it is preferable that it is not included, i.e., 0% by number. However, from the viewpoint of productivity, it is preferably 1% by number or more, more preferably 5% by number or more, and even more preferably 10% by number or more.

[0085]

[0033] In the powder or granular detergent composition according to the second embodiment of the present invention, the content of fine powder having a particle size of 10 μm or less relative to all particles constituting the composition is preferably 3.5% by mass or less, more preferably 3.3% by mass or less, even more preferably 3.0% by mass or less, still more preferably 2.0% by mass or less, and even more preferably 1.0% by mass or less, from the viewpoints of improving the feel during use and storage stability, and particularly preventing choking. From the viewpoint of productivity, the content is preferably 0.001% by mass or more, more preferably 0.002% by mass or more, and even more preferably 0.003% by mass or more. The content of fine powder having a particle size of 10 μm or less relative to all particles is preferably 0.001% by mass or more and 3.5% by mass or less, more preferably 0.002% by mass or more and 3.3% by mass or less, even more preferably 0.003% by mass or more and 3.0% by mass or less, still more preferably 0.003% by mass or more and 2.0% by mass or less, and even more preferably 0.003% by mass or more and 1.0% by mass or less. Furthermore, from the viewpoint of improving storage stability, the average hardness of particles having a particle size of 100 μm or more is preferably 0.3 gf or more, more preferably 0.4 gf or more, and even more preferably 0.5 gf or more, and from the viewpoint of improving the feeling of use, particularly suppressing roughness to the touch, it is preferably less than 5 gf, more preferably 4.7 gf or less, and even more preferably 4.5 gf or less. The average hardness is calculated by sampling at least 20 particles randomly selected from particles having a particle size of 100 μm or more, measuring the hardness of each particle one by one using a microcompression tester (MCT series, manufactured by Shimadzu Corporation), and calculating the average value.

[0086] The powder or granular cleanser composition according to the second embodiment of the present invention can be suitably used in face care products such as facial cleansers, and body care products such as hand soaps and body soaps. A foaming cleanser product using the cleanser composition according to the second embodiment of the present invention can be provided by being enclosed in a package. The cleanser composition according to the second embodiment of the present invention is unlikely to swell due to the generation of carbon dioxide gas even when sealed and stored in a package, and therefore has excellent storage stability in the form of a product enclosed in a package. The shape of the packaging is not particularly limited as long as it has a structure that can encapsulate the cleanser composition, and examples thereof include a bag shape and a bottle shape. Of these, a bag-shaped packaging is preferred. The material constituting the packaging is also not particularly limited as long as it can encapsulate the cleanser composition. For example, in the case of a bag-shaped packaging, a resin film or a laminate film in which an inorganic thin film made of a metal or metal oxide is laminated on a resin film can be used.

[0087] <Method for producing powder or granular detergent composition> The method for producing a powder or granular detergent composition according to the second embodiment of the present invention includes a step of granulating at least one of a carbonate or an organic acid. Either the carbonate or the organic acid may be used as a raw material without granulation, or the carbonate and the organic acid may be granulated separately to produce granulated particles of the carbonate and granulated particles of the organic acid. By using at least one of the carbonate or the organic acid as granulated particles, it is possible to produce a detergent composition with an adjusted particle size and hardness, thereby achieving both storage stability and a good usability.

[0088] The method for producing a powder or granular detergent composition according to the second embodiment of the present invention preferably includes a step of mixing carbonate-containing particles (A) and organic acid-containing particles (B). The carbonate-containing particles (A) preferably do not contain an organic acid. The carbonate-containing particles (A) may be raw material particles or granulated particles of a carbonate. On the other hand, the organic acid-containing particles (B) preferably do not contain a carbonate. The organic acid-containing particles (B) may be raw material particles or granulated particles of an organic acid. It is preferred that either the particles (A) or the particles (B), or both the particles (A) and the particles (B) contain a surfactant.

[0089] When granulating a carbonate, it is preferable to obtain granulated particles by granulating the carbonate with other components constituting the detergent composition other than the organic acid, preferably one or more selected from the group consisting of surfactants, excipients, binders, and moisture absorbents, more preferably all components other than the organic acid.When granulating an organic acid, it is preferable to obtain granulated particles by granulating the organic acid with other components constituting the detergent composition other than the carbonate, preferably one or more selected from the group consisting of surfactants, excipients, binders, and moisture absorbents, more preferably all components other than the carbonate.

[0090] It is also preferable to use carbonates and organic acids having a median diameter of 170 μm or less as raw materials. More specifically, from the viewpoint of improving productivity and storage stability, the median diameter of the carbonates used as raw materials is preferably 10 μm or more, more preferably 15 μm or more, and even more preferably 20 μm or more. From the viewpoint of improving the feel to the touch, the median diameter is preferably 170 μm or less, more preferably 150 μm or less, even more preferably 120 μm or less, still more preferably 110 μm or less, still more preferably 100 μm or less, still more preferably 95 μm or less, and even more preferably 90 μm or less. The median diameter of the carbonate used as a raw material is preferably 10 μm or more and 170 μm or less, more preferably 15 μm or more and 150 μm or less, even more preferably 20 μm or more and 120 μm or less, still more preferably 20 μm or more and 110 μm or less, still more preferably 20 μm or more and 100 μm or less, still more preferably 20 μm or more and 95 μm or less, and still more preferably 20 μm or more and 90 μm or less. Furthermore, from the same viewpoint as above and from the viewpoint of further improving the feel, the median diameter of the carbonate used as a raw material when granulating the carbonate is, in addition to the above range, even more preferably 100 μm or less, even more preferably 90 μm or less, even more preferably 70 μm or less, even more preferably 60 μm or less, and even more preferably 10 μm or more and 100 μm or less, even more preferably 10 μm or more and 90 μm or less, even more preferably 10 μm or more and 70 μm or less, and even more preferably 10 μm or more and 60 μm or less. Furthermore, when the carbonate is used as a raw material without granulation, from the same viewpoint as above and from the viewpoint of the balance between storage stability and feel, the median diameter is more preferably 80 μm or more, even more preferably 90 μm or more, and even more preferably 110 μm or less, in addition to the above ranges, and even more preferably 80 μm or more and 170 μm or less, even more preferably 80 μm or more and 150 μm or less, even more preferably 90 μm or more and 120 μm or less, and even more preferably 90 μm or more and 110 μm or less.

[0091] The organic acid raw material particles preferably have a median diameter of 10 μm or more, more preferably 15 μm or more, and even more preferably 20 μm or more from the viewpoint of improving productivity and storage stability, and preferably 170 μm or less, more preferably 150 μm or less, even more preferably 120 μm or less, even more preferably 110 μm or less, still more preferably 100 μm or less, even more preferably 95 μm or less, still more preferably 90 μm or less, and even more preferably 80 μm or less from the viewpoint of improving the feel to the touch. The median diameter of the organic acid as a raw material is preferably 10 μm or more and 170 μm or less, more preferably 15 μm or more and 150 μm or less, even more preferably 20 μm or more and 120 μm or less, still more preferably 20 μm or more and 110 μm or less, still more preferably 20 μm or more and 100 μm or less, still more preferably 20 μm or more and 95 μm or less, still more preferably 20 μm or more and 90 μm or less, and still more preferably 20 μm or more and 80 μm or less. Furthermore, from the same viewpoint as above and from the viewpoint of further improving the feel, the median diameter of the organic acid used as a raw material when granulating the organic acid is, in addition to the above range, even more preferably 30 μm or more, even more preferably 70 μm or less, even more preferably 60 μm or less, even more preferably 50 μm or less, and even more preferably 20 μm or more and 70 μm or less, even more preferably 20 μm or more and 60 μm or less, and even more preferably 20 μm or more and 50 μm or less. Furthermore, when the organic acid is used as a raw material without granulation, the preferred median diameter is, in addition to the above ranges, even more preferably 80 μm or more, even more preferably 90 μm or more, and even more preferably 110 μm or less, from the same viewpoint as above and from the viewpoint of the balance between storage stability and feel, and is even more preferably 80 μm or more and 170 μm or less, even more preferably 80 μm or more and 150 μm or less, even more preferably 90 μm or more and 120 μm or less, and even more preferably 90 μm or more and 110 μm or less.

[0092] The carbonate and the organic acid are preferably produced so as to have the following median diameters, respectively. From the viewpoint of storage stability, the median diameter of the carbonate in the detergent composition (product) is preferably 80 μm or more, more preferably 90 μm or more, even more preferably 100 μm or more, still more preferably 110 μm or more, and still more preferably 120 μm or more. From the viewpoint of productivity, it is preferably 500 μm or less, more preferably 400 μm or less, even more preferably 300 μm or less, and still more preferably 200 μm or less. The median diameter of the granulated product of the carbonate in the detergent composition (product) is preferably 80 μm or more and 500 μm or less, more preferably 90 μm or more and 400 μm or less, and still more preferably 100 μm or more and 300 μm or less. From the viewpoint of improving the feel in use, particularly suppressing roughness to the touch, it is preferable to granulate the carbonate, and in that case, it is preferable that the median diameter of the carbonate after granulation but before blending is within the above range. In addition to the above-mentioned preferred range, the median diameter of the granulated product is even more preferably 110 μm or more and 300 μm or less, even more preferably 120 μm or more and 300 μm or less, and even more preferably 120 μm or more and 200 μm or less, from the viewpoint of further improving storage stability. When the carbonate is used as a raw material, the preferred range of the median diameter of the carbonate in the powdered or granular carbonated foamable composition (product) is as described above for the median diameter of the carbonate as raw material particles.

[0093] From the viewpoint of storage stability, the median diameter of the organic acid in the detergent composition (finished product) is preferably 70 μm or more, more preferably 80 μm or more, even more preferably 90 μm or more, still more preferably 100 μm or more, still more preferably 110 μm or more, and still more preferably 120 μm or more. From the viewpoint of productivity, it is preferably 500 μm or less, more preferably 400 μm or less, even more preferably 300 μm or less, and still more preferably 200 μm or less. The median diameter of the granulated product of the organic acid in the detergent composition (finished product) is preferably 70 μm or more and 500 μm or less, more preferably 80 μm or more and 500 μm or less, even more preferably 90 μm or more and 400 μm or less, and still more preferably 100 μm or more and 300 μm or less. From the viewpoint of improving the feel in use, particularly suppressing roughness to the touch, it is preferable to granulate the organic acid. In this case, it is preferable that the median diameter of the organic acid after granulation but before blending is within the above range. In addition to the above-mentioned preferred range, the median diameter of the granulated product is even more preferably 110 μm or more and 300 μm or less, even more preferably 120 μm or more and 300 μm or less, and even more preferably 120 μm or more and 200 μm or less, from the viewpoint of further improving storage stability. When the organic acid is used as a raw material, the preferred range of the median diameter of the organic acid in the powdered or granular carbonated foamable composition (product) is as described above for the median diameter of the organic acid as raw material particles.

[0094] Here, the median diameter (D50) means the particle diameter at which the cumulative volume frequency calculated by volume fraction is 50% calculated from the smallest particle diameter. Specifically, the median diameter can be measured by the method described in the Examples.

[0095] From the viewpoint of improving the feel to the touch, particles having a particle size of preferably 500 μm or more, more preferably 400 μm or more, and even more preferably 300 μm or more may be removed in advance using a sieve from the raw material particles, and then granulation may be performed. Note that the raw material components other than the carbonate and the organic acid have a median diameter equal to or smaller than the median diameter of the carbonate and the organic acid, and are usually 170 μm or less, for example, 5 μm to 150 μm.

[0096] As the granulation method, any of fluidized bed granulation, stirring granulation, tumbling granulation, and extrusion granulation can be used. Among these, fluidized bed granulation is preferred from the viewpoint of improving the solubility of the detergent composition in water. Specifically, for example, raw material particles are charged into a fluidized bed granulator, and a binder liquid prepared by dissolving a binder in water, ethanol, or a mixture thereof is added to the uniformly mixed powder. From the viewpoint of productivity, the binder content (solid content) in the binder liquid is preferably 0.1% by mass or more, more preferably 0.3% by mass or more, even more preferably 0.5% by mass or more, and preferably 10% by mass or less, more preferably 8% by mass or less, and even more preferably 5% by mass or less. The binder content in the binder liquid is preferably 0.1 to 10% by mass, more preferably 0.3 to 8% by mass, and even more preferably 0.5 to 5% by mass. As mentioned above, from the viewpoint of improving storage stability, it is preferable that a carbonate and an organic acid are not contained simultaneously in the same granulated particle. The granulated particles can be mixed with non-granulated particles by known means to produce a detergent composition. When the carbonate and the organic acid are granulated separately, the respective granulated particles (granulated particles containing the carbonate and granulated particles containing the organic acid) can be mixed by known means to produce a detergent composition.

[0097] <Method of Using Powder or Granular Detergent Composition> The powder or granular detergent composition according to the second embodiment of the present invention can be suitably used, for example, for washing the face, hair, and body. The powder or granular detergent composition according to the second embodiment of the present invention is a foaming detergent composition that begins to foam naturally upon addition of water. Therefore, it foams quickly and does not require a special foaming process that requires time and effort, making it easy to use. The powder or granular detergent composition according to the second embodiment of the present invention can be used, for example, by placing the detergent composition in the palm of the hand, adding water to the detergent composition, thoroughly blending the water into the detergent composition on the palm of the hand, lightly lathering the composition, and applying it to the face, hair, whole body, or other area to be cleaned, and then washing.

[0098] From the viewpoints of improving the solubility and foaming properties of the powder or granular detergent composition, the mass ratio of water to powder or granular detergent composition (powder or granular detergent composition / water) is preferably 1 / 30 or more, more preferably 1 / 25 or more, even more preferably 1 / 20 or more, and is preferably 1 / 0.5 or less, more preferably 1 / 1 or less, even more preferably 1 / 2 or less.

[0099] From the viewpoint of foam retention, the powder or granular cleanser composition according to the second embodiment of the present invention is applied to the skin preferably within 5 minutes, more preferably within 3 minutes, even more preferably within 2 minutes, and even more preferably within 1 minute 30 seconds after adding water. The temperature of the water added to the powder or granular cleanser composition is not particularly limited, but is preferably 15°C or higher and 50°C or lower, more preferably 15°C or higher and 45°C or lower, and even more preferably 20°C or higher and 45°C or lower.

[0100] In relation to the first embodiment described above, the present invention further discloses the following <1> to <27>. <1> A powdered or granular carbonated foaming composition containing a carbonate salt and an organic acid, wherein the composition contains 30% by mass or more of particles having a particle size of 100 μm or more, and wherein the content of particles having a hardness of 5 gf or more among the particles having a particle size of 100 μm or more is 0.10% by number or less. <2> The powdered or granular carbonated foaming composition according to <1>, wherein the content of particles having a hardness of 5 gf or more among the particles having a particle size of 100 μm or more is 45% by number or less. <3> The powdered or granular carbonated foaming composition according to <1> or <2>, further containing a moisture absorbent. <4> The powdered or granular carbonated foaming composition according to any one of <1> to <3>, wherein the organic acid contains one or more selected from the group consisting of citric acid, succinic acid, tartaric acid, and ascorbic acid. <5> The powdered or granular carbonated foaming composition according to any one of <1> to <4>, wherein the carbonate comprises one or more selected from the group consisting of sodium carbonate and sodium bicarbonate. <6> The powdered or granular carbonated foaming composition according to any one of <3> to <5>, wherein the moisture absorbent is magnesium oxide. <7> The powdered or granular carbonated foaming composition according to any one of <1> to <6>, wherein at least a portion of the particles having a particle size of 100 μm or more are granulated particles. <8> The powdered or granular carbonated foaming composition according to any one of <1> to <7>, wherein, of all the particles constituting the powdered or granular carbonated foaming composition, the particles having a particle size of 100 μm or more account for 30% by mass to 100% by mass. <9> The powdered or granular carbonated foaming composition according to any one of <1> to <8>, wherein, of all the particles constituting the powdered or granular carbonated foaming composition, the particles having a particle size of 100 μm or more account for 0.015% by number to 1% by number. <10> The powdered or granular carbonated foaming composition according to any one of <1> to <9>, wherein the content of fine powder having a particle size of 10 μm or less is 0.001% by mass or more and 3.5% by mass or less of all particles constituting the powdered or granular carbonated foaming composition. <11> The powdered or granular carbonated foaming composition according to any one of <7> to <10>, wherein the content of granulated particles among the particles having a particle size of 100 μm or more is more than 55% by number.<12> The powdered or granular carbonated foaming composition according to any one of <1> to <11>, wherein the average hardness of the particles of 100 μm or larger is 0.3 gf or more and less than 5 gf. <13> The powdered or granular carbonated foaming composition according to any one of <1> to <12>, wherein the particles of 100 μm or larger account for 35% by mass to 100% by mass and 0.017% by number to 0.7% by number. <14> The powdered or granular carbonated foaming composition according to any one of <1> to <13>, wherein, of all particles constituting the powdered or granular carbonated foaming composition, particles of 100 μm or larger in size and having a hardness of 5 gf or more account for 0.07% by number or less, and wherein, of the particles of 100 μm or larger in size, particles of 5 gf or more account for 40% by number or less. <15> The powdered or granular carbonated foaming composition according to any one of <1> to <14>, wherein the content of the carbonate in the powdered or granular carbonated foaming composition is from 15% by mass to 65% by mass. <16> The powdered or granular carbonated foaming composition according to any one of <1> to <15>, wherein the content of the organic acid in the powdered or granular carbonated foaming composition is from 5% by mass to 60% by mass. <17> The powdered or granular carbonated foaming composition according to any one of <1> to <16>, wherein the mass ratio of the organic acid to the carbonate [organic acid / carbonate] is from 0.05 to 10. <18> The powdered or granular carbonated foaming composition according to any one of <1> to <17>, wherein the total amount of carbonate and organic acid in the powdered or granular carbonated foaming composition is 50 to 90% by mass. <19> The powdered or granular carbonated foaming composition according to any one of <3> to <18>, wherein the content of the moisture absorbent in the powdered or granular carbonated foaming composition is 0.01 to 15% by mass. <20> The powdered or granular carbonated foaming composition according to any one of <1> to <19>, comprising particles (A) containing the carbonate and particles (B) containing the organic acid, wherein the particles (A) do not contain the organic acid and the particles (B) do not contain the carbonate. <21> The powdered or granular carbonated foaming composition according to any one of <1> to <19>, wherein the particles (A) contain the excipient. <22> The powdered or granular carbonated foaming composition according to any one of <1> to <19>, wherein the particles (B) contain the excipient.<23> The powdered or granular carbonated foaming composition according to any one of <1> to <19>, wherein both the particles (A) and the particles (B) contain the excipient. <24> A method for producing the powdered or granular carbonated foaming composition according to any one of <1> to <23>, comprising a step of granulating at least one of a carbonate salt or an organic acid. <25> A method for using the powdered or granular carbonated foaming composition, comprising contacting the powdered or granular carbonated foaming composition according to any one of <1> to <23> with a surfactant-containing composition to form the surfactant-containing composition into a foam-like formulation. <26> A method for using the powdered or granular carbonated foaming composition according to <25>, wherein the surfactant-containing composition is a hair cosmetic. <27> A hair cosmetic kit comprising the powdered or granular carbonated foaming composition according to any one of <1> to <23> and a surfactant-containing composition.

[0101] Furthermore, with respect to the second embodiment described above, the present invention further discloses the following <31> to <57>. <31> A powder or granular detergent composition containing a carbonate, an organic acid, and a surfactant, wherein the content of particles having a particle size of 100 μm or more is 30% by mass or more, and the content of particles having a hardness of 5 gf or more among the particles having a particle size of 100 μm or more is 0.10% by number or less. <32> The powder or granular detergent composition according to <31>, wherein the content of particles having a hardness of 5 gf or more among the particles having a particle size of 100 μm or more is 45% by number or less. <33> The powder or granular detergent composition according to <31> or <32>, further containing a moisture absorbent. <34> The powder or granular detergent composition according to any one of <31> to <33>, wherein the organic acid is one or more selected from the group consisting of citric acid, succinic acid, tartaric acid, and ascorbic acid. <35> The powder or granular detergent composition according to any one of <31> to <34>, wherein the carbonate comprises one or more selected from the group consisting of sodium carbonate and sodium bicarbonate. <36> The powder or granular detergent composition according to any one of <33> to <35>, wherein the moisture absorbent is magnesium oxide. <37> The powder or granular detergent composition according to any one of <31> to <36>, wherein at least a part of the particles having a particle size of 100 μm or more are granulated particles. <38> The powder or granular detergent composition according to <37>, wherein the granulated particles are granulated particles obtained by granulating either an organic acid or a carbonate with other components constituting the detergent composition other than the organic acid and the carbonate. <39> The powder or granular detergent composition according to any one of <31> to <38>, wherein the particles having a particle size of 100 μm or more account for 30% by mass to 100% by mass of all particles constituting the powder or granular detergent composition. <40> The powder or granular detergent composition according to any one of <31> to <39>, wherein, of all particles constituting the powder or granular detergent composition, the content of particles having a particle size of 100 μm or more is 0.015% by number to 1% by number. <41> The powder or granular detergent composition according to any one of <31> to <40>, wherein, of all particles constituting the powder or granular detergent composition, the content of fine powder having a particle size of 10 μm or less is 0.001% by mass to 3.5% by mass.<42> The powder or granular detergent composition according to any one of <31> to <41>, wherein the average hardness of the particles having a particle size of 100 μm or more is 0.3 gf or more and less than 5 gf. <43> The powder or granular detergent composition according to any one of <37> to <42>, wherein the content of granulated particles among the particles having a particle size of 100 μm or more is more than 55% by number. <44> The powder or granular detergent composition according to any one of <31> to <43>, wherein the content of particles having a particle size of 100 μm or more is 35% by mass or more and 100% by mass or less and 0.017% by number or more and 0.7% by number or less. <45> The powder or granular detergent composition according to any one of <31> to <44>, wherein, of all particles constituting the powder or granular detergent composition, particles having a particle size of 100 μm or more and a hardness of 5 gf or more account for 0.07% or less by number, and wherein, of the particles having a particle size of 100 μm or more, particles having a hardness of 5 gf or more account for 40% or less by number. <46> The powder or granular detergent composition according to any one of <31> to <45>, wherein the content of the carbonate is 10% by mass or more and 60% by mass or less. <47> The powder or granular detergent composition according to any one of <31> to <46>, wherein the content of the organic acid is 5% by mass or more and 60% by mass or less. <48> The powder or granular detergent composition according to any one of <31> to <47>, wherein the content of the surfactant is 10% by mass or more and 50% by mass or less. <49> The powder or granular detergent composition according to any one of <31> to <48>, wherein the mass ratio of the total amount of the carbonate and the organic acid to the surfactant [(carbonate + organic acid) / surfactant] is from 0.1 to 20. <50> The powder or granular detergent composition according to any one of <31> to <49>, wherein the mass ratio of the organic acid to the carbonate [organic acid / carbonate] is from 0.05 to 10. <51> The powder or granular detergent composition according to any one of <31> to <50>, wherein the total amount of the carbonate and the organic acid is from 35% to 70% by mass. <52> The powder or granular detergent composition according to any one of <33> to <51>, wherein the content of the moisture absorbent is from 0.01% to 10% by mass.<53> The powder or granular detergent composition according to any one of <31> to <52>, comprising particles (A) containing the carbonate and particles (B) containing the organic acid, wherein the particles (A) do not contain an organic acid and the particles (B) do not contain a carbonate. <54> The powder or granular detergent composition according to <53>, wherein the particles (A) contain a surfactant. <55> The powder or granular detergent composition according to <53>, wherein the particles (B) contain a surfactant. <56> The powder or granular detergent composition according to <53>, wherein both the particles (A) and the particles (B) contain a surfactant. <57> A method for producing the powder or granular detergent composition according to any one of <31> to <56>, comprising a step of granulating at least one of the carbonate and the organic acid.

[0102] The present invention will be described below with reference to examples, but the present invention is not limited to the scope of the examples. Measurements in the examples were carried out by the following methods.

[0103] (1) Method for measuring the content (number ratio) of particles with a particle size of 100 μm or more Using 3 g of a powder or granular carbonated foaming composition or a powder or granular detergent composition, measurement was performed using a Camsizer XT (particle size measuring device, manufactured by RETSCH Corporation). Of the obtained distribution, particle sizes of 1 to 3000 μm were equally divided into 100 logarithmically, and the range including 100 μm and above was counted as 100 μm or above. The total number of particles with a particle size of 100 μm or above was calculated, and the content (number ratio) of particles with a particle size of 100 μm or above among all particles was calculated.

[0104] (2) Method for measuring the content (number ratio) of particles with a hardness of 5 gf or more among particles with a particle size of 100 μm or more: A powder or granular carbonated foaming composition or a powder or granular detergent composition was sieved through a sieve with a mesh size of 100 μm, and the particles on the sieve were collected with a very small spatula. Next, the particles collected with the spatula were spread on the pressure plate of a micro-compression tester (MCTW500, manufactured by Shimadzu Corporation), and the hardness of 20 randomly selected particles was measured, and the content (number ratio) of particles with a hardness of 5 gf or more among particles with a particle size of 100 μm or more was calculated. This procedure was repeated three times, and the average value was calculated.

[0105] (3) Method for calculating the content of particles having a particle diameter of 100 μm or more and a hardness of 5 gf or more The content of particles having a particle diameter of 100 μm or more and a hardness of 5 gf or more among all particles was calculated by multiplying the value obtained by the measurement in (1) above by the value obtained by the measurement in (2) above.

[0106] (4) Method for measuring the content (number ratio) of granulated particles among particles with a particle size of 100 μm or more: A powder or granular detergent composition was sieved through a sieve with a mesh size of 100 μm, and particles remaining on the sieve were collected with a very small spatula. The collected particles were wrapped around a 5 mm x 5 mm carbon tape and observed under a Hitachi Miniscope TM3030 tabletop microscope (manufactured by Hitachi High-Technologies Corporation). Twenty particles were randomly selected and observed, and the content (number ratio) was calculated, with agglomerates considered to be granulated particles.

[0107] (5) Method for measuring the content (mass proportion) of particles with a particle size of 100 μm or more 3 g of a powdered or granular carbonated foaming composition or a powdered or granular detergent composition was sieved through a sieve with 100 μm openings, and the content (mass proportion) of particles with a particle size of 100 μm or more was calculated from the mass remaining on top.

[0108] (6) Method for Measuring Fine Powder Content Measurement was performed using 3 g of a powder or granular carbonated foaming composition, or a powder or granular detergent composition, using a Camsizer XT (particle size measuring device, manufactured by RETSCH). The particle size distribution obtained was divided equally into 100 logarithmic intervals, and the range up to and including 10 μm was counted as 10 μm or less. The volume frequency of particles of 10 μm or less was calculated, and the content (mass proportion) of particles of 10 μm or less in particle size among all particles was calculated.

[0109] [Method for Measuring Median Diameter] The median diameter of each of the raw materials, organic acid, carbonate, and granulated product thereof, 3 g each, was measured using a Camsizer XT (particle size measuring device, manufactured by RETSCH Corporation).

[0110] [Preparation of Mixed Surfactant] 300 g of sodium N-myristoyl-L-glutamate (Amisoft MS manufactured by Ajinomoto Co., Inc.) and 291.5 g of sodium N-lauroyl-L-glutamate (Amisoft LS manufactured by Ajinomoto Co., Inc.) were mixed at room temperature to obtain a mixed surfactant.

[0111] <First embodiment> [Example 1-1] A powder or granular carbonated foaming composition was obtained according to the formulation shown in Table 1. 158.6 g of citric acid (citric acid anhydrous 60 manufactured by Iwata Chemical Industry Co., Ltd.), 39.5 g of magnesium oxide (manufactured by Kyowa Chemical Industry Co., Ltd.), 84.7 g of talc (SW-K4 manufactured by Asada Flour Milling Co., Ltd.), and 16.3 g of cationized hydroxyethyl cellulose (Soft Cat Polymer SL-30 manufactured by The Dow Chemical Company) were charged into a fluidized bed granulator (FD-MP-01E manufactured by Powrex Corporation) and the mixture was passed through a 0.2 m 3 fluidized bed granulator. ３ Granulation was performed under conditions of a suction air temperature of 80°C, while adding 90 g (0.9 g solids) of 1.0% carboxymethylcellulose (Sunrose, manufactured by Nippon Paper Industries Co., Ltd.) aqueous solution at a rate of 4 g / min. The resulting granules were mixed with 264.3 g of sodium bicarbonate (manufactured by AGC Inc.) in a transparent vinyl bag and mixed by hand until uniform, producing a powder or granular carbonated foaming composition. The resulting powder or granular carbonated foaming composition was evaluated according to the following methods. The results are shown in Table 1. Table 2 also shows the particle sizes of the citric acid and sodium bicarbonate (baking soda) used as raw materials, as well as the particle sizes in the resulting powder or granular carbonated foaming composition (product).

[0112] Examples 1-2 and 1-3: Powdered or granular carbonated foaming compositions were obtained in the same manner as in Example 1-1, except that the formulation shown in Table 1 was used. Using the obtained powdered or granular carbonated foaming compositions, various evaluations were carried out according to the methods described below. The results are shown in Table 1. Table 2 also shows the particle sizes of the citric acid and sodium bicarbonate used as raw materials and the particle sizes in the produced powdered or granular carbonated foaming compositions (products).

[0113] Example 1-4 Sodium bicarbonate was granulated according to the formulation shown in Table 1. 195.3 g of sodium bicarbonate (AGC Inc.), 29.2 g of magnesium oxide (Kyowa Chemical Industry Co., Ltd.), 62.6 g of talc (SW-K4, Asada Flour Milling Co., Ltd.), and 12.0 g of cationized hydroxyethyl cellulose (Soft Cat Polymer SL-30, The Dow Chemical Company) were charged into a fluidized bed granulator (FD-MP-01E, Powrex Corporation). Granulation was carried out under the same conditions as in Example 1-1, while adding 66 g of a 1.0% CMC aqueous solution (solids content: 0.7 g) at a rate of 4 g / min. to obtain granules with a median diameter of 145 μm. The resulting granules and 117.2 g of citric acid (Citric Acid Anhydrous 60, Iwata Chemical Industry Co., Ltd.) were hand-mixed in a transparent vinyl bag until uniform, producing a powder or granular carbonated foaming composition. The resulting powdered or granular carbonated foaming compositions were evaluated according to the methods described below. The results are shown in Table 1. Table 2 also shows the particle sizes of the citric acid and sodium bicarbonate used as raw materials and the particle sizes in the resulting powdered or granular carbonated foaming compositions (products).

[0114] Example 1-5 A powdered or granular carbonated foaming composition was obtained in the same manner as in Example 1-1, except that citric acid (citric acid fine powder manufactured by Iwata Chemical Industry Co., Ltd.) was used. Using the obtained powdered or granular carbonated foaming composition, various evaluations were carried out according to the methods described below. The results are shown in Table 1. Table 2 also shows the particle sizes of the citric acid and sodium bicarbonate used as raw materials and the particle sizes in the produced powdered or granular carbonated foaming composition (product).

[0115] Example 1-6 A carbonated foamable composition was obtained in the same manner as in Example 1-1, except that 142.9 g of citric acid (anhydrous citric acid 60 manufactured by Iwata Chemical Co., Ltd.), 37.6 g of magnesium oxide (manufactured by Kyowa Chemical Industry Co., Ltd.), 75.8 g of talc (SW-K4 manufactured by Asada Flour Milling Co., Ltd.), 15.6 g of cationized hydroxyethyl cellulose (Soft Cat Polymer SL-30 manufactured by The Dow Chemical Company), and 26.9 g of sodium cocoyl isethionate (JODAPONLACI manufactured by BASF) were used. The resulting carbonated foamable composition was evaluated according to the following methods. The results are shown in Table 1. Table 2 also shows the particle sizes of the citric acid and sodium bicarbonate used as raw materials, and the particle sizes in the resulting powdered or granular carbonated foamable composition (product).

[0116] Comparative Examples 1-1 to 1-3 Powdered or granular carbonated foaming compositions were obtained according to the formulations shown in Table 3. In Comparative Examples 1-1 to 1-3, powdered or granular carbonated foaming compositions were obtained without granulation by placing all ingredients in a bag and manually mixing them in a transparent vinyl bag until uniform. Using the obtained powdered or granular carbonated foaming compositions, various evaluations were carried out according to the methods described below. The results are shown in Table 3. Table 4 also shows the particle sizes of the citric acid and sodium bicarbonate used as raw materials and the particle sizes in the produced powdered or granular carbonated foaming compositions (products).

[0117] [Comparative Examples 1-4] Powdered or granular carbonated foaming compositions were obtained according to the formulations shown in Table 3. All ingredients were placed in a bag without granulation and mixed by hand in a transparent vinyl bag until uniform. 1 g of the resulting mixture was placed in a Φ4 mm mold and hand-pressed at 10 MPa to obtain a Φ4 mm compression-molded product. The resulting compression-molded product was pulverized in a mortar and sieved through a 250 μm sieve, and the fraction that passed through was collected to obtain powdered or granular carbonated foaming compositions with a median diameter of 176 μm.

[0118] [Foaming (no water added)] 1 g of each powder or granular carbonated foaming composition was placed in the palm of the hand, and 6 g of commercially available shampoo liquid (Essential the Beauty, Kao Corporation) was added to the powder or granular carbonated foaming composition. The shampoo liquid was thoroughly blended into the powder or granular carbonated foaming composition on the palm of the hand, and after natural foaming (approximately 10 seconds after adding the shampoo liquid), the powder or granular carbonated foaming composition was mixed with the fingers of the other hand to create a lather. While continuing to foam, a three-member expert panel evaluated the foaming properties when foaming within 3 minutes after adding the shampoo liquid according to the following criteria, and the results were determined through discussion by the expert panel. 1: Foams to fill the palm in less than 30 seconds 2: Foams to fill the palm in 30 seconds to less than 1 minute 3: Foams to fill the palm in 1 to 2 minutes 4: Foams to fill the palm in 2 to 3 minutes 5: Takes 3 minutes or more to create sufficient foam

[0119] [Foaming (with added water)] 1 g of each powder or granular carbonated foaming composition was placed in the palm of the hand, 5 g of water at 42°C was added to the powder or granular carbonated foaming composition, the water was thoroughly blended into the powder or granular carbonated foaming composition on the palm, and after natural foaming (approximately 10 seconds after the addition of water), 6 g of a commercially available shampoo (Kao Corporation, Essential the Beauty) was added, and the shampoo was thoroughly blended into the powder or granular carbonated foaming composition on the palm, and after natural foaming, the mixture was mixed with the fingers of the other hand to create a lather. While continuing to foam, the foaming action was continued, and within 3 minutes after the addition of water, the foaming performance upon lathering was evaluated by a three-member expert panel according to the following criteria, and the results were determined by discussion among the expert panels. 1: Foams to a palm-full in less than 30 seconds 2: Foams to a palm-full in 30 seconds or more but less than 1 minute 3: Foams to a palm-full in 1 minute or more but less than 2 minutes 4: Foams to a palm-full in 2 minutes or more but less than 3 minutes 5: It takes more than 3 minutes to foam to a palm-full

[0120] [Storage Stability] 3.9 g of each powdered or granular carbonated foamable composition was sealed in an 80 mm x 50 mm x 18 mm aluminum packaging material at 50°C and 50% RH, and the expansion of the aluminum packaging material was measured before and after storage at 50°C for 4 weeks. Specifically, a water bath filled with water at 25°C was placed on a balance and its weight was measured. Next, the aluminum packaging material containing the powdered or granular carbonated foamable composition was completely submerged in the water bath and its mass was measured. The difference in mass between the aluminum packaging material before and after submersion in water was converted to volume using Archimedes' principle, assuming a water density of 1.0 g / ml. This was used as the volume of the aluminum packaging material before storage. The same measurement was then repeated after 4 weeks of storage to determine the volume of the aluminum packaging material after storage. The expansion of the aluminum packaging material after storage was calculated from the difference in volume between the aluminum packaging material before and after storage. A smaller expansion amount indicates better storage stability.

[0121] [Feeling on use (texture / no water added)] 1 g of powder or granular carbonated foaming composition was placed in the palm of the hand, 6 g of a commercially available shampoo (Essential the Beauty, Kao Corporation) was added to the powder or granular carbonated foaming composition, the shampoo was thoroughly blended into the powder or granular carbonated foaming composition on the palm of the hand, and after allowing to foam naturally, the powder or granular carbonated foaming composition was mixed with the fingers of the other hand to create a lather. While continuing to foam, a three-member expert panel evaluated the feel on the surface of the foam within 3 minutes of adding the shampoo to the powder or granular carbonated foaming composition according to the following criteria, and the evaluation was determined by discussion among the expert panels. 1: No roughness felt from the beginning 2: Roughness felt at first, but disappeared in the early stages of lathering 3: Roughness felt at first, but disappeared during lathering 4: Roughness felt, but disappeared after lathering 5: Roughness felt, but did not disappear even after lathering (The above "early stages of lathering" refers to within 1 minute after adding the shampoo liquid to the powder or granular carbonated foam composition, "during lathering" refers to more than 1 minute but not more than 2 minutes, and "after lathering" refers to more than 2 minutes but not more than 3 minutes.)

[0122] [Feeling on the hand (with water added)] 1 g of each carbonated foamable composition was placed in the palm of the hand, 5 g of water at 42°C was added to the carbonated foamable composition, the water was thoroughly blended into the carbonated foamable composition on the palm, and after allowing it to foam naturally (approximately 10 seconds after adding the water), 6 g of a commercially available shampoo (Essential the Beauty, Kao Corporation) was added, the shampoo was thoroughly blended into the carbonated foamable composition on the palm, and after allowing it to foam naturally, the shampoo was mixed with the fingers of the other hand to create a lather. While continuing to lather, the feel on the hand of the foam within 3 minutes after adding the water was evaluated by a three-member expert panel according to the following criteria, and the evaluation was determined by discussion among the expert panel. 1: No roughness is felt from the beginning 2: Roughness is felt at first, but disappears in the early stages of whipping 3: Roughness is felt at first, but disappears during whipping 4: Roughness is felt, but disappears after whipping 5: Roughness is felt, and does not disappear even after whipping (The above "early stages of whipping" refers to within 1 minute after adding water to the carbonated foaming composition, "during whipping" refers to more than 1 minute but less than 2 minutes, and "after whipping" refers to more than 2 minutes but less than 3 minutes.)

[0123]

[0124]

[0125]

[0126]

[0127] *1 In the "Granulation state" in Tables 1 to 4, "organic acid granulation" means that all ingredients other than the carbonate (organic acid, excipient, water-soluble polymer, and moisture absorbent) have been granulated. In the case of organic acid granulation, the carbonate (sodium bicarbonate) was used as raw material particles without being granulated. "Carbonate granulation" means that the carbonate and all ingredients other than the organic acid (excipient, water-soluble polymer, and moisture absorbent) have been granulated. In the case of carbonate granulation, the organic acid (citric acid) was used as raw material particles without being granulated. "Ungranulated" means that all powder ingredients were used without being granulated. *2 Soft Cat Polymer SL-30, manufactured by The Dow Chemical Company *3 Sunrose, manufactured by Nippon Paper Industries Co., Ltd. *6 In Tables 1 and 3, "of the total detergent composition" means "of all particles constituting the powder or granular detergent composition."

[0128] It can be seen from Tables 1 and 3 that the powdery or granular carbonated foaming composition of this example has excellent storage stability and a pleasant feel. In addition, all of the shampoos to which the powdery or granular carbonated foaming composition of this example was applied had good foaming properties, foam rinse-off, and foam retention.

[0129] Second Embodiment Example 2-1 A powder or granular detergent composition was obtained according to the formulation shown in Table 5. 67.4 g of citric acid (anhydrous citric acid 60 manufactured by Iwata Chemical Industry Co., Ltd.), 118.3 g of a mixed surfactant, 25.2 g of magnesium oxide (manufactured by Kyowa Chemical Industry Co., Ltd.), and 84.0 g of talc (SW-K4 manufactured by Asada Flour Milling Co., Ltd.) were charged into a fluidized bed granulator (FD-MP-01E manufactured by Powrex Corporation), and the mixture was passed through a 0.3 m 3 airflow system. ３The mixture was granulated under conditions of a flow rate of 5 g / min and an intake air temperature of 80°C, while adding 314 g of a 1.6% aqueous carrageenan solution (solid content: 5.0 g) at a rate of 5 g / min, to obtain granules with a particle size of 172 μm. The obtained granules and 203 g of sodium bicarbonate (hereinafter also referred to as baking soda, manufactured by AGC Inc.) were placed in a bag and mixed by hand in a transparent vinyl bag until uniform, to prepare a powder or granular detergent composition. The obtained detergent composition was used for various evaluations according to the methods described below. The results are shown in Table 5. Table 6 also shows the particle sizes of the citric acid and sodium bicarbonate (baking soda) used as raw materials, and the particle sizes in the produced powder or granular detergent composition (product).

[0130] Examples 2-2 to 2-3, 2-5 to 2-7 Powder or granular detergent compositions were obtained in the same manner as in Example 2-1, except that the formulations shown in Table 5 were used. Using the obtained powder or granular detergent compositions, evaluations were carried out according to the methods described below. The results are shown in Table 5. Table 6 also shows the particle sizes of the citric acid and sodium bicarbonate used as raw materials and the particle sizes in the produced powder or granular detergent compositions (products).

[0131] Example 2-4 Sodium bicarbonate was granulated according to the formulation shown in Table 5. 139.9 g of sodium bicarbonate (AGC Inc.), 81.5 g of mixed surfactants, 17.3 g of magnesium oxide (Kyowa Chemical Industry Co., Ltd.), and 57.8 g of talc (SW-K4, Asada Flour Milling Co., Ltd.) were charged into a fluidized bed granulator (FD-MP-01E, Powrex Corporation). Granulation was carried out under the same conditions as in Example 2-1, while adding 216 g of a 1.6% aqueous carrageenan solution (solids content: 3.5 g) at a rate of 5 g / min, yielding granules with a particle size of 127 μm. The resulting granules and 46.6 g of citric acid were mixed by hand in a transparent vinyl bag until uniform, producing a powder or granular detergent composition. The resulting powder or granular detergent composition was used to evaluate the various properties according to the methods described below. The results are shown in Table 5. Table 6 also shows the particle sizes of the citric acid and sodium bicarbonate used as raw materials and the particle sizes in the powder or granular detergent compositions (products) obtained by the production.

[0132] Comparative Examples 2-1 to 2-3 Powder or granular detergent compositions were obtained according to the formulations shown in Table 7. In Comparative Examples 2-1 to 2-3, all ingredients were placed in a bag and mixed by hand in the bag without granulation to obtain powder or granular detergent compositions. The obtained powder or granular detergent compositions were evaluated according to the methods described below. The results are shown in Table 7. The particle sizes of the citric acid and baking soda used as raw materials are shown in Table 8.

[0133] [Storage Stability] 3.9 g of each detergent composition was sealed in an 80 mm x 50 mm x 18 mm aluminum packaging material at 50°C and 50% RH, and the amount of expansion of the aluminum packaging material was measured before and after storage at 50°C for 4 weeks. Specifically, a water tank filled with water at 25°C was placed on a balance and its weight was measured. Next, the aluminum packaging material containing the detergent composition was completely submerged in the water tank and its mass was measured. The difference in mass between before and after submerging the aluminum packaging material in water was converted into volume using Archimedes' principle, assuming a water density of 1.0 g / ml, and this was defined as the volume of the aluminum packaging material before storage. The same measurement was then performed after 4 weeks of storage to determine the volume of the aluminum packaging material after storage, and the amount of expansion of the aluminum packaging material after storage was calculated from the difference in volume between the aluminum packaging material before and after storage. A smaller amount of expansion indicates better storage stability.

[0134] [Feeling on the Hand] 1 g of the powder or granular detergent composition was placed in the palm of one hand, and 10 g of water at 42°C was dropped onto the detergent composition. The detergent composition was thoroughly soaked in water on the palm of one hand, and after allowing the composition to foam naturally (approximately 10 seconds after the water was dropped), the palm of one hand was placed together with the other hand to create a lather. While continuing to lather, a panel of three experts evaluated the feel of the lathered composition on the hand within 3 minutes after the water was dropped, according to the following criteria, and the evaluation was determined by discussion among the expert panels. 1: No roughness felt from the beginning 2: Roughness felt at first, but disappeared in the early stages of lathering 3: Roughness felt at first, but disappeared during lathering 4: Roughness felt, but disappeared after lathering 5: Roughness felt, but did not disappear even after lathering (The above "early stages of lathering" refers to within 1 minute after dripping water onto the detergent composition, "during lathering" refers to more than 1 minute but not more than 2 minutes, and "after lathering" refers to more than 2 minutes but not more than 3 minutes.)

[0135]

[0136]

[0137]

[0138]

[0139] *1 "Organic acid granulation" in the "Granulation state" column in Tables 5 to 8 refers to the state in which all ingredients (surfactants, excipients, binders, and moisture absorbents) other than the organic acid and carbonate (sodium bicarbonate) are granulated. In the case of organic acid granulation, the carbonate (sodium bicarbonate) was used as raw material particles without granulation. "Carbonate granulation" refers to the state in which all ingredients (surfactants, excipients, binders, and moisture absorbents) other than the carbonate and organic acid (citric acid) are granulated. In the case of carbonate granulation, the organic acid (citric acid) was used as raw material particles without granulation. "Ungranulated" refers to the state in which all powder ingredients are used without granulation. *2 Carrageenan was dissolved in purified water to prepare a 1.6% carrageenan aqueous solution. However, since the purified water evaporates during the manufacturing process, the carrageenan content in Tables 5 and 7 indicates the solid content. *3 In Tables 5 and 7, "in the total detergent composition" means "in all particles constituting the powder or granular detergent composition." *4 The particle sizes in Tables 6 and 8 indicate the median diameter.

[0140] Tables 5 and 7 show that the powder or granular detergent compositions of this example have excellent storage stability and a pleasant feel to the touch. Furthermore, all of the detergent compositions of this example had good foaming properties, foam break-up time, and foam retention.

[0141] According to the present invention, it is possible to provide a powder or granular carbonated foaming composition and a powder or granular cleanser composition that have high storage stability, are suppressed from being rough to the touch, and have a good feel when used. The carbonated foaming composition can be used in combination with hair cosmetics such as shampoos and conditioners to form the hair cosmetics into a foam-like formulation. The cleanser composition can be used in face care products such as facial cleansers, and body care products such as hand soaps and body soaps.

Claims

1. A powdered or granular carbonated foaming composition comprising a carbonate and an organic acid, containing 30 mass% or more of particles having a particle size of 100 μm or more, and the content of particles having a particle size of 100 μm or more and a hardness of 5 gf or more is 0.10 number% or less.

2. A powder or granular carbonated foaming composition as described in claim 1, in which particles having a hardness of 5 gf or more account for 45% or less by number of particles with a particle diameter of 100 μm or more.

3. The powdered or granular carbonated foaming composition according to claim 1 or 2, further comprising a moisture absorbent.

4. A powdered or granular carbonated foaming composition according to any one of claims 1 to 3, wherein the organic acid contains one or more selected from the group consisting of citric acid, succinic acid, tartaric acid, and ascorbic acid.

5. A powdered or granular carbonated foaming composition according to any one of claims 1 to 4, wherein the carbonate salt contains one or more selected from the group consisting of sodium carbonate and sodium hydrogen carbonate.

6. A powdered or granular carbonated foaming composition according to any one of claims 3 to 5, wherein the moisture absorbent is magnesium oxide.

7. A powdered or granular carbonated foaming composition according to any one of claims 1 to 6, wherein at least a portion of the particles having a particle size of 100 μm or more are granulated particles.

8. A powdered or granular carbonated foaming composition according to any one of claims 1 to 7, comprising particles (A) containing the carbonate and particles (B) containing the organic acid, wherein the particles (A) do not contain an organic acid, and the particles (B) do not contain a carbonate.

9. The powder or granular carbonated foaming composition according to claim 8, further comprising an excipient, wherein either the particles (A) or the particles (B), or both the particles (A) and the particles (B), contain the excipient.

10. A method for producing the powdered or granular carbonated foaming composition according to any one of claims 1 to 9, comprising a step of granulating at least one of a carbonate salt or an organic acid.

11. A method for using a powdered or granular carbonated foaming composition, comprising contacting the powdered or granular carbonated foaming composition according to any one of claims 1 to 9 with a surfactant-containing composition to form the surfactant-containing composition into a foam-like formulation.

12. A method for using the powder or granular carbonated foaming composition according to claim 11, wherein the surfactant-containing composition is a hair cosmetic.

13. A hair cosmetic kit comprising the powder or granular carbonated foaming composition according to any one of claims 1 to 9 and a surfactant-containing composition.

14. A powder or granular detergent composition comprising a carbonate, an organic acid and a surfactant, containing 30 mass% or more of particles having a particle size of 100 μm or more, and the content of particles having a particle size of 100 μm or more and a hardness of 5 gf or more is 0.10 number% or less.

15. A powder or granular detergent composition according to claim 14, wherein particles having a hardness of 5 gf or more account for 45% or less by number of particles having a particle size of 100 μm or more.

16. The powder or granular detergent composition according to claim 14 or 15, further comprising a moisture absorbent.

17. The powder or granular detergent composition according to any one of claims 14 to 16, wherein the organic acid comprises one or more selected from the group consisting of citric acid, succinic acid, tartaric acid, and ascorbic acid.

18. The powder or granular detergent composition according to any one of claims 14 to 17, wherein the carbonate comprises one or more selected from the group consisting of sodium carbonate and sodium hydrogen carbonate.

19. The powder or granular detergent composition according to any one of claims 16 to 18, wherein the moisture absorbent is magnesium oxide.

20. The powder or granular detergent composition according to any one of claims 14 to 19, wherein at least a portion of the particles having a particle size of 100 μm or more are granulated particles.

21. The powder or granular cleaning composition according to any one of claims 14 to 20, comprising particles (A) containing the carbonate and particles (B) containing the organic acid, wherein the particles (A) do not contain an organic acid, and the particles (B) do not contain a carbonate.

22. A powder or granular cleaning composition according to claim 21, wherein the particles (A) or the particles (B), or both the particles (A) and the particles (B), contain a surfactant.

23. A method for producing the powder or granular detergent composition according to any one of claims 14 to 22, comprising the step of granulating at least one of a carbonate or an organic acid.

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