Powder or granular carbonated foaming composition

Abstract

To provide a powdered or granular carbonate foaming composition which has high storage stability, reduced roughness in tactile sensation, and favorable feeling upon use.SOLUTION: A powdered or granular carbonate foaming composition comprises a carbonate and an organic acid. The content of particles having a particle diameter of 100 μm or more is 30 mass% or more. Among the particles having the particle diameter of 100 μm or more, the content of particles having a hardness of 5 gf or more is 0.10 number% or less.SELECTED DRAWING: None

Description

[Technical Field]

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

[0002] In recent years, foam-type shampoos, facial cleansers, and body soaps have been gaining attention due to their ease of use. In light of this, a foaming cosmetic composition that generates fine carbon dioxide bubbles has been reported (Patent Document 1), which takes advantage of the property that a mixture of carbonate and organic acid generates carbon dioxide gas when a small amount of water is added. 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 carbonate and organic acid, and the reaction generates water as a by-product, causing a chain reaction that results in swelling of the packaging material and a decrease in foaming ability during use.

[0003] To address this issue, techniques for improving storage stability have been reported. For example, Patent Document 2 discloses effervescent granules that contain an oily component and have a particle size of 150 μm to 1500 μm, thereby improving storage stability. Patent Document 3 also discloses a bath agent composition that has good storage stability by containing the following components (A) to (C): (A) 25 to 55 mass % of an alkali metal carbonate having 50% or more particles with a particle diameter of 180 μm or more, (B) 40 to 70 mass % of an organic acid having 50% or more particles with a particle diameter of 180 μm or more, and (C) 0.01 to 10 mass % of a poorly water-soluble metal oxide. [Prior art documents] [Patent documents]

[0004] [Patent Document 1] Japanese Patent Application Publication No. 1-290615 [Patent Document 2] Japanese Patent Application Laid-Open No. 2009-62319 [Patent Document 3] Japanese Patent Application Laid-Open No. 2009-155213 Summary of the Invention [Problem to be solved by the invention]

[0005] However, the technology described in Patent Document 2 uses a compression granulation method, which reduces the instantaneous solubility of the granules. Therefore, when this technology is used for carbonated foaming compositions used for lathering shampoo by hand, the remaining components create a rough texture, which deteriorates the feel during use and impairs the user experience. Patent Document 3, meanwhile, 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, so 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 with a certain particle size are used as particles constituting the bath additive composition. In contrast, carbonated foaming compositions used for lathering by hand require instantaneous solubility, which allows them to dissolve instantly in a small amount of liquid in a short period of time. Therefore, when large particles are used as carbonated foaming compositions, they have poor solubility, resulting in the same roughness problem as described above. Carbonated foaming compositions, unlike bath additives, are applied to hair and the body and come into direct contact with the skin, so they are required to have a delicate feel. Therefore, an object of the present invention is to provide a carbonated foaming composition that has high storage stability, is less rough to the touch, and has a good feel when used. [Means for solving the problem]

[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. In other words, the present invention relates to a powdered or granular carbonated foaming composition that contains a carbonate and an organic acid, contains 30% by 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% by number or less. [Effects of the Invention]

[0007] According to the present invention, a carbonated foaming composition can be provided which has high storage stability, is less rough to the touch, and has a good feel when used. DETAILED DESCRIPTION OF THE INVENTION

[0008] The powdered or granular carbonated foaming composition of the present invention comprises: Contains carbonate and organic acid, Contains 30% by mass or more of particles with a particle size of 100 μm or more, and The content of particles with a particle diameter of 100 μm or more and a hardness of 5 gf or more is 0.10% by number or less. The powdered or granular carbonated foaming composition of the present invention (hereinafter also referred to simply as the carbonated foaming composition) is used to form a foam formulation from a surfactant-containing composition, such as a shampoo or conditioner. Therefore, the powdered or granular carbonated foaming composition 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 good feel when used, without roughness when lathered, is required. Furthermore, the composition must dissolve quickly and immediately, so the particles constituting the carbonated foaming composition should preferably be small in size. However, it has been found that when the particle size of a carbonated foaming composition is small, the addition of a moisture absorbent is insufficient to suppress carbon dioxide gas generation in the packaging material, resulting in poor storage stability. Therefore, to suppress carbon dioxide gas generation during storage, the particle size of the carbonate salt or organic acid must be large. In order to resolve these conflicting demands, the inventors conducted extensive research and discovered that the hardness and particle size of the particles that make up the carbonated foamable composition are closely related to the feel during use and storage stability. They also discovered that by adjusting the hardness and particle size of the particles in the carbonated foamable composition, it is possible to achieve both a good feel and storage stability, and thus completed the present invention. According to the powdered or granular carbonated foaming composition of the present invention, by containing a predetermined amount or more of particles with a particle diameter of 100 μm or more and by setting the content of particles with a particle diameter of 100 μm or more and a hardness of 5 gf or more to a predetermined number percent or less, roughness to the touch during use can be suppressed, and a good feel can be obtained.

[0009] The powdered or granular carbonated foaming composition of the present invention may contain a surfactant within a range that does not impair the efficacy of a 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 explained in detail in the section on how to use the powdered or granular carbonated composition.

[0010] <Surfactant> The surfactants used in the present invention include anionic surfactants, cationic surfactants, amphoteric surfactants, and nonionic surfactants, and one or more of these can be used. Specific examples of each are shown below.

[0011] [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.

[0012] Examples of counter ions 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.), with sodium ion and potassium ion being preferred, and sodium ion being more preferred.

[0013] [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.

[0014] 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.

[0015] [Amphoteric surfactants] Examples of amphoteric surfactants 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.

[0016] [Nonionic surfactant] 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 the above, anionic surfactants are preferred from the viewpoints of good solubility in water and good foaming, and salts of esters of isethionic acid with fatty acids having from 5 to 18 carbon atoms are more preferred. Furthermore, from the viewpoint of low irritation, amino acid-based anionic surfactants such as N-acylamino acid salts and N-acyl-N-methylamino acid salts are preferred.

[0017] <Carbonates> The powdered or granular carbonated foaming composition of the present invention contains a carbonate salt. Examples of carbonates used in the present invention include dialkali metal carbonates such as sodium carbonate and potassium carbonate; alkali metal hydrogen carbonates such as sodium hydrogen carbonate and potassium hydrogen carbonate; and the like, and one or more of these can be used. Among the above, from the viewpoint of improving foaming properties, the carbonate preferably contains one or more selected from the group consisting of sodium carbonate (Na2CO3) and sodium bicarbonate (NaHCO3), more preferably sodium bicarbonate. From the viewpoint of improving foaming properties, the content of one or more selected from the group consisting of sodium carbonate and sodium bicarbonate in the carbonate 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.

[0018] From the viewpoint of improving foaming property, the carbonate content 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 carbonate content 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.

[0019] The carbonate used in the powdered or granular carbonated foaming composition 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 may be 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.

[0020] <Organic acid> The powdered or granular carbonated foaming composition 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 can 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 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.

[0021] 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.

[0022] The organic acid used in the powdered or granular carbonated foaming composition 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 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, and 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.

[0023] 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.

[0024] 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.

[0025] <Moisture absorbent> The powdered or granular carbonated foaming composition 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 viewpoint of improving storage stability and foaming properties.

[0026] 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.

[0027] <Other ingredients> The powdered or granular carbonated foaming composition of the present invention may contain ingredients commonly used in powdered or granular carbonated foaming compositions, as long as the ingredients do not impair the object of the present invention. Such other ingredients include, for example, excipients, water-soluble polymers, thickeners, natural pigments, moisturizers, anti-inflammatory agents, disinfectants, antiperspirants, antioxidants, fragrances, and mixtures thereof. From the standpoint of foaming properties, it is preferable that the powdered or granular carbonated foaming composition of the present invention is substantially free of oily ingredients such as fragrances, and the content of oily ingredients 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.

[0028] 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 inorganic powders include 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. One or more of these may be used. From the viewpoints of solubility, granulation ability, effervescence, and storage stability, the content of excipients in a powdered or granular carbonated foaming 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 excipients in a 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.

[0029] The water-soluble polymer used in the present invention is preferably a polysaccharide-based polymer from the viewpoint of improving the feeling when used, and such a water-soluble polymer can be used as a feel adjusting agent and a binder as 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 these, from the viewpoint of stabilizing foam generated upon contact with a surfactant-containing composition and improving the feel when added to a surfactant-containing composition such as a hair cosmetic, preferred are water-soluble cationized polysaccharides, 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.

[0030] 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.

[0031] 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, even more preferably 1.3% by mass or more, even 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 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, even more preferably 19.8% by mass or less, even more preferably 9.8% by mass or less, and even 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% by mass or more and 29.8% by mass or less, more preferably 0.3% by mass or more and 25.3% by mass or less, even more preferably 0.8% by mass or more and 19.8% by mass or less, even more preferably 1.3% by mass or more and 9.8% by mass or less, and even more preferably 2.3% by mass or more and 4.8% by mass or less.

[0032] <Powder or granular carbonated foaming composition> The powdered or granular carbonated foaming composition of the present invention contains 30% by mass or more of particles with a particle size of 100 μm or more, and the content of particles with a particle size of 100 μm or more and a hardness of 5 gf or more is 0.10% by number or less. In other words, the powdered or granular carbonated foaming composition of the present invention contains 30 mass% or more of particles having a particle size of 100 μm or more among the particles constituting the powdered or granular carbonated foaming composition, 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 constituting the powdered or granular carbonated foaming composition is 0.10 number% or less. By including 30% by mass or more of particles with a particle diameter of 100 μm or more, storage stability can be improved, and by keeping the content of particles with a particle diameter 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, making it possible to improve the feel in use.

[0033] 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 feeling of 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, even more preferably more than 70% by number, and even more preferably all are granulated particles, but from the viewpoint of production efficiency, some particles may be contained as they are from the raw materials. If the particles are granulated, the hardness can be easily adjusted, making it possible to adjust the content of particles having a 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 in the particles constituting the powdered or granular carbonated foaming composition of the present invention can be determined by sieving the particles through a sieve with a mesh size of 100 μm, observing the resulting particles having a particle size of 100 μm or more using an SEM, and measuring the number ratio.

[0034] 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 is, the content of particles larger than 100 μm and with a hardness of 5 gf or more 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 larger than 100 μm 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. Examples of partially granulated particles include a case where either the organic acid or the carbonate is granulated and the other is used as raw material. More specifically, other 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, and the organic acid is used as raw material without granulation. Alternatively, other 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, and the carbonate is used as raw material without granulation. From the viewpoint of production efficiency, it is preferable to granulate the organic acid 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 are each in the form of separate, independent particles, which can further improve storage stability and effervescence.

[0035] The powdered or granular carbonated foaming composition 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 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.

[0036] The content (mass proportion) of particles having a particle size of 100 μm or more in all particles constituting the powdered or granular carbonated foaming composition of the present invention can be measured by a sieving method. The content of particles having a particle size of 100 μm or more and a hardness of 5 gf or more in all particles constituting the powdered or granular carbonated foaming composition of the present invention can be measured by the following method. (i) First, the content (number ratio) of particles with a particle size of 100 μm or more in all particles is calculated. Specifically, the particle size distribution is measured using a Camsizer XT (particle size measuring device, manufactured by Retsch), and particles of 1 to 3000 μm in the obtained distribution are defined as the "total particles" in the present invention. These are divided equally into 100 logarithms, and the range including 100 μm or more is counted as 100 μm or more. The total number of particles of 100 μm or more is calculated, and the content (number ratio) of particles of 100 μm or more in the total particles is calculated. (ii) Next, the content (number ratio) of particles having a hardness of 5 gf or more among the particles having a particle diameter of 100 μm or more is calculated. Specifically, a powder or granular carbonated foaming composition is sieved through a sieve with a mesh size of 100 μm, and 20 or more particles having a particle size of 100 μm or more are randomly sampled from the resulting particles. The hardness of each particle is measured using a microcompression 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 and the average value is calculated. The hardness of a particle can be determined by the load (gf) at the breaking point of the particle when applied using a micro-compression tester. If the 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.

[0037] Of all particles constituting the powdered or granular carbonated foaming composition 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 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, 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.

[0038] 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 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, particles with a particle size of 100 μm or more preferably account for 0.015 to 1% by number, more preferably 0.017 to 0.7% by number, even more preferably 0.02 to 0.5% by number, even more preferably 0.03 to 0.5% by number, and even more preferably 0.1 to 0.4% by number. Of all the particles constituting the powdered or granular carbonated foamable composition of the present invention, 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, 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 improving the feel in use, particularly suppressing roughness to the touch. Note that 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.

[0039] 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 size 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. Of particles having a particle size 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, but 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.

[0040] 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 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 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. Furthermore, from the viewpoint of improving the feeling in 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 size of 100 μm or more is preferably 0.3 gf or more but less than 5 gf, more preferably 0.4 gf or more but less than 4.7 gf, and even more preferably 0.5 gf or more but less than 4.5 gf. The average hardness is calculated by sampling 20 or more particles having a particle size of 100 μm or more and measuring the hardness of each particle one by one using a microcompression tester (MCT series, manufactured by Shimadzu Corporation).

[0041] The powdery or granular carbonated foaming composition of the present invention can be suitably used as a foaming aid that helps to foam surfactant-containing compositions, particularly hair cosmetics such as shampoos and conditioners. The powdered or granular carbonated foaming composition of the present invention can be provided by being enclosed in a packaging material. Even when enclosed in a packaging material and stored, the powdered or granular carbonated foaming composition of the present invention is unlikely to cause swelling of the packaging material due to the generation of carbon dioxide gas, and therefore has excellent storage stability in the form of a product enclosed in a packaging material. The shape of the packaging material is not particularly limited as long as it has a structure that can encapsulate the powdered or granular carbonated foaming composition, and examples thereof include a bag shape, a bottle shape, etc. Among these, a bag-shaped packaging material is preferred. The material constituting the packaging material is not particularly limited as long as it can encapsulate the powdered or granular carbonated foaming composition. For example, in the case of a bag-shaped packaging material, a resin film or a laminated film in which an inorganic thin film made of a metal or metal oxide is laminated on a resin film can be used.

[0042] <Method of producing powdered or granular carbonated foaming composition> The method for producing a powdery or granular carbonated foamable composition of the present invention includes a step of granulating at least one of a carbonate salt or an organic acid. Either the carbonate salt or the organic acid may be used as a raw material without granulation, or the carbonate salt and the organic acid may be granulated separately and used as granulated particles of the carbonate and granulated particles of the organic acid. By making at least one of the carbonate salt or the organic acid into granulated particles, it becomes possible to produce a powdered or granular carbonated foaming composition with adjusted particle size and hardness, thereby achieving both storage stability and a good usability.

[0043] The method for producing the powdery or granular carbonated foaming composition of the present invention preferably includes a step of mixing particles (A) containing a carbonate and particles (B) containing an organic acid. It is preferable that the carbonate-containing particles (A) do not contain an organic acid. Moreover, the carbonate-containing particles (A) may be particles of the raw material itself or granulated particles of the carbonate. On the other hand, it is preferable that the organic acid-containing particles (B) do not contain a carbonate. Moreover, the organic acid-containing particles (B) may be particles of the raw material itself or granulated particles of the organic acid. It is preferable that the particles (A) or the particles (B), or both the particles (A) and the particles (B), contain an excipient.

[0044] When granulating the carbonate, it is preferred 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 preferred 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.

[0045] It is also preferable to use carbonates and organic acids with 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 carbonate used as a raw material 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, still 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 property 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.

[0046] The median diameter of the organic acid raw material particles is preferably 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 is 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 used 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 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.

[0047] Furthermore, it is preferable that the carbonate and the organic acid are produced so that they have the following median diameters, respectively. 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. Note that, 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.

[0048] 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. From the viewpoint of improving the feel in use, particularly reducing 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.

[0049] 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.

[0050] Furthermore, 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 from the raw material particles using a sieve before granulation. 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 smaller, for example, 5 μm to 150 μm.

[0051] 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 powdered or granular carbonated foaming composition in liquid (water). Specifically, for example, raw material particles are charged 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 particles. As mentioned above, from the viewpoint of improving storage stability, it is preferable that the same granulated particles do not contain both a carbonate and an organic acid at the same time. The granulated particles can be mixed with non-granulated particles by known means to produce a powdered or granular carbonated foaming 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 powdered or granular carbonated foaming composition.

[0052] The binder used in the granulation process of the present invention is preferably selected from the water-soluble polymers described above. From the viewpoint of the immediate solubility and productivity of the carbonated foaming composition, one or more types selected from hydroxyethyl cellulose, hydroxymethyl cellulose, carboxymethyl cellulose, xanthan gum, carrageenan, and guar gum can be used, and it is preferable to use one or more types selected from hydroxyethyl cellulose, hydroxymethyl cellulose, carboxymethyl cellulose, xanthan gum, and carrageenan. 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, and even more preferably 0.5% by mass or more, and is 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 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.

[0053] <Method of using powder or granular carbonated foaming composition> The powdered or granular carbonated foaming composition 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 foam formulation. More specifically, when the powdered or granular carbonated foaming composition of the present invention is brought into contact with the 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 foam formulation. The powdered or granular carbonated foaming composition of the present invention reacts with water to naturally begin foaming, so the surfactant-containing composition foams quickly and there is no need for special foaming work that requires time and effort, making it easy to use.

[0054] The powdered or granular carbonated foaming composition of the present invention can also be used as a foaming method and a cleaning method. That is, it is also a method for foaming a surfactant composition, which comprises contacting the powdery or granular carbonated foaming composition of the present invention with a surfactant-containing composition to form the surfactant-containing composition into a foam-like formulation. The present invention is also a cleaning method in which the powdered or granular carbonated foaming composition of the present invention is contacted with a surfactant-containing composition to form the surfactant-containing composition into a foam-like formulation, and the foam-like surfactant composition is applied to the surface of the human body to cleanse it. The present invention is also a method for washing hair, which comprises contacting the powdered or granular carbonated foaming composition of the present invention with a surfactant-containing composition to form the surfactant-containing composition into a foam-like formulation, and applying the foam-like surfactant composition to hair to wash it.

[0055] In this specification, the surfactant-containing composition is not particularly limited as long as it is a composition containing a surfactant that is applied to the surface of the human body, including skin and hair, and examples thereof include hair cosmetics, facial cleansers, body cleansers (body shampoos), etc. Examples of hair cosmetics include shampoos, rinses, conditioning agents, treatments, styling agents, hair dyes, hair growth agents, etc. Among the above, from the viewpoint of being able to more effectively exert the effects of the present invention, the surfactant-containing composition is preferably a hair cosmetic, more preferably one selected from the group consisting of shampoo, rinse, conditioning agent and treatment agent, and even more preferably a shampoo. Furthermore, the surfactant-containing composition is preferably in a liquid form, from the viewpoint of being able to more effectively exhibit the effects of the present invention.

[0056] When hair cosmetics are applied directly to hair, friction occurs between the hair and scalp during lathering or blending, which can place a burden on the hair and scalp. However, by using the powdered or granular carbonated foaming composition of the present invention in combination, the hair cosmetics can be applied as a foam, thereby reducing the burden on the hair and scalp. Furthermore, because the powdered or granular carbonated foaming composition of the present invention has excellent instant solubility, it provides excellent feel on the skin (touch) even when dissolved in a hair cosmetic. Furthermore, the powdered or granular carbonated foaming composition 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.

[0057] More specifically, a method of using the powdered or granular carbonated foaming composition 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 carbonated foaming composition with water on the palm of the hand, lightly lathering the composition, and applying it to the target area, such as the face, hair, or entire body. The order in which the compositions are placed on the palm does not matter; the surfactant-containing composition may be placed in the palm of the hand and then the powdered or granular carbonated foaming composition may be added to the surfactant-containing composition, but from the viewpoints of reducing scattering of the powdered or granular carbonated foaming composition and more effectively foaming the surfactant-containing composition, it is preferable to first place the powdered or granular carbonated foaming composition in the palm of the hand and then add the surfactant-containing composition. Furthermore, if the foaming of the surfactant-containing composition is difficult to proceed, further water may be added as necessary. In this case, 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. Furthermore, water may be added after contacting the powdered or granular carbonated foaming composition with the surfactant-containing composition. From the viewpoint of more effective foaming of the surfactant-containing composition, it is preferable to add the surfactant composition after contacting the powdered 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 powdered or granular carbonated foaming composition is, from the viewpoint of improving the solubility of the powdered or granular carbonated foaming composition and also improving the foaming properties, such that the mass ratio of the powdered or granular carbonated foaming composition to the surfactant-containing composition to be added (powdered 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. 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.

[0058] When the surfactant-containing composition is liquid, from the viewpoint of foam retention, the powdered or granular carbonated foaming composition of the present invention is preferably applied to the target object such as hair within 5 minutes after contact with the liquid surfactant-containing composition (or, if the powdered or granular carbonated foaming composition is first contacted with water, after contacting the powdered or granular carbonated foaming composition with water) within 5 minutes, more preferably within 3 minutes, even more preferably within 2 minutes, and even more preferably within 1 minute and 30 seconds. The temperature of the water added to the powdered 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.

[0059] <Hair cosmetic kit> The hair cosmetic kit of the present invention comprises a powdery or granular carbonated foaming composition and a surfactant-containing composition. The powdered or granular carbonated foaming composition and surfactant-containing composition used in the hair cosmetic kit of the present invention are the same as those described above. When used, the hair cosmetic kit is used by bringing the powdered or granular carbonated foaming composition into contact with the surfactant-containing composition to form the surfactant-containing composition into a foam-like formulation.

[0060] In relation to the above-described embodiments, the present invention further discloses the following. <1> Contains carbonate and organic acid, Contains 30% by mass or more of particles with a particle size of 100 μm or more, and The content of particles with a particle diameter of 100 μm or more and a hardness of 5 gf or more is 0.10% by number or less. Powdered or granular carbonated effervescent composition. <2> Among the particles with a particle size of 100 μm or more, particles with a hardness of 5 gf or more account for 45% by number or less. <1> The powdered or granular carbonated foaming composition according to claim 1. <3> Further, it contains a moisture absorbent, <1> or <2> The powdered or granular carbonated foaming composition according to claim 1. <4> The organic acid contains one or more selected from the group consisting of citric acid, succinic acid, tartaric acid, and ascorbic acid. <1> ~ <3> The powdered or granular carbonated foaming composition according to any one of the preceding claims. <5> The carbonate contains one or more selected from the group consisting of sodium carbonate and sodium bicarbonate. <1> ~ <4> The powdered or granular carbonated foaming composition according to any one of the preceding claims. <6> The moisture absorbent is magnesium oxide, <3> ~ <5> The powdered or granular carbonated foaming composition according to any one of the preceding claims. <7> At least a part of the particles having a particle size of 100 μm or more is granulated particles. <1> ~ <6> The powdered or granular carbonated foaming composition according to any one of the preceding claims. <8> Of all the particles constituting the powdered or granular carbonated foaming composition, the particles having a particle size of 100 μm or more are contained in an amount of 30% by mass or more and 100% by mass or less. <1> ~ <7> The powdered or granular carbonated foaming composition according to any one of the preceding claims. <9> Of all the particles constituting the powdered or granular carbonated foaming composition, the particles having a particle size of 100 μm or more are contained in an amount of 0.015% by number or more and 1% by number or less. <1> ~ <8> The powdered or granular carbonated foaming composition according to any one of the preceding claims. <10> The content of fine powder having a particle size of 10 μm or less among all particles constituting the powder or granular carbonated foaming composition is 0.001% by mass or more and 3.5% by mass or less; <1> ~ <9> The powdered or granular carbonated foaming composition according to any one of the preceding claims. <11> The content of granulated particles among the particles with a particle size of 100 μm or more is more than 55% by number. <7> ~ <10> The powdered or granular carbonated foaming composition according to any one of the preceding claims. <12> The average hardness of the particles having a particle diameter of 100 μm or more is 0.3 gf or more and less than 5 gf. <1> ~ <11> The powdered or granular carbonated foaming composition according to any one of the preceding claims. <13> The particles having a particle diameter of 100 μm or more account for 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, <1> ~ <12> The powdered or granular carbonated foaming composition according to any one of the preceding claims. <14> Of all the particles constituting the powdered or granular carbonated foaming composition, the content of particles having a particle diameter of 100 μm or more and a hardness of 5 gf or more is 0.07% by number or less, and the content of particles having a hardness of 5 gf or more among the particles having a particle diameter of 100 μm or more is 40% by number or less. <1> ~ <13> The powdered or granular carbonated foaming composition according to any one of the preceding claims. <15> The content of the carbonate in the powdered or granular carbonated foaming composition is 15% by mass or more and 65% by mass or less. <1> ~ <14> The powdered or granular carbonated foaming composition according to any one of the preceding claims. <16> The content of the organic acid in the powdered or granular carbonated foaming composition is 5% by mass or more and 60% by mass or less. <1> ~ <15> The powdered or granular carbonated foaming composition according to any one of the preceding claims. <17> a mass ratio of the organic acid to the carbonate [organic acid / carbonate] of 0.05 or more and 10 or less; <1> ~ <16> The powdered or granular carbonated foaming composition according to any one of the preceding claims. <18> The total amount of carbonate and organic acid in the powdered or granular carbonated foaming composition is 50 to 90% by mass. <1> ~ <17> The powdered or granular carbonated foaming composition according to any one of the preceding claims. <19> The content of the moisture absorbent in the powdered or granular carbonated foaming composition is 0.01 to 15% by mass. <3> ~ <18> The powdered or granular carbonated foaming composition according to any one of the preceding claims. <20> The particle (A) containing the carbonate and the particle (B) containing the organic acid are contained, The particles (A) do not contain an organic acid, and the particles (B) do not contain a carbonate. <1> ~ <19> The powdered or granular carbonated foaming composition according to any one of the preceding claims. <21> The particles (A) contain the excipient. <1> ~ <19> The powdered or granular carbonated foaming composition according to any one of the preceding claims. <22> The particles (B) contain the excipient. <1> ~ <19> The powdered or granular carbonated foaming composition according to any one of the preceding claims. <23> Both the particles (A) and the particles (B) contain the excipient. <1> ~ <19> The powdered or granular carbonated foaming composition according to any one of the preceding claims. <24> <1> ~ <23> A method for producing the powdered or granular carbonated foaming composition according to any one of the above, A method for producing a powdered or granular carbonated foaming composition, comprising a step of granulating at least one of a carbonate salt or an organic acid. <25> <1> ~ <23> A method for using a powdered or granular carbonated foaming composition, comprising contacting the powdered or granular carbonated foaming composition described in any one of the above with a surfactant-containing composition to form the surfactant-containing composition into a foam-like dosage form. <26> The surfactant-containing composition is a hair cosmetic. <25> A method for using the powdered or granular carbonated foaming composition described in claim 1. <27> <1> ~ <23> A hair cosmetic kit comprising the powder or granular carbonated foaming composition according to any one of the above and a surfactant-containing composition. [Example]

[0061] 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.

[0062] (1) Measurement method for the content (number ratio) of particles with a particle size of 100 μm or more Measurement was performed using 3 g of powdered or granular carbonated foaming composition using a Camsizer XT (particle size measuring device, manufactured by Retsch Co., Ltd.) The particle size distribution obtained was divided equally into 100 logarithmic intervals from 1 to 3000 μm, and the range including 100 μm or more was counted as 100 μm or more. The total number of particles 100 μm or more was calculated, and the content (number ratio) of particles 100 μm or more in the total particles was calculated.

[0063] (2) Method for measuring the content (number ratio) of particles with a hardness of 5 gf or more among particles with a diameter of 100 μm or more A powder or granular carbonated foaming composition was sieved through a sieve with 100 μm openings, and the particles remaining on the sieve were collected with a very small spatula. The particles collected with the spatula were then placed on the pressure plate of a microcompression tester (Shimadzu Corporation, MCTW500), and the hardness of 20 randomly selected particles was measured. 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.

[0064] (3) Calculation method for the content of particles with a particle diameter of 100 μm or more and a hardness of 5 gf or more The content of particles with 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.

[0065] (4) Method for measuring the content (mass ratio) of particles with a particle size of 100 μm or more 3 g of a powdered or granular carbonated foaming composition was sieved through a sieve with 100 μm openings, and the weight was calculated from the mass remaining on top.

[0066] (5) Method for measuring the content of fine powder Measurement was performed using 3 g of powdered or granular carbonated foaming composition using a Camsizer XT (particle size measuring device, manufactured by Retsch). The particle size distribution obtained was divided equally into 100 logarithmic intervals from 1 to 3000 μm, and the range including 10 μm was counted as 10 μm or less. The volume frequency of particles 10 μm or less was calculated, and the content (mass proportion) of particles 10 μm or less in the total particles was calculated.

[0067] [Method for measuring median diameter] The organic acid, carbonate, and their granulated raw materials (3 g each) were used to measure the median diameter using a Camsizer XT (particle size measuring device, manufactured by RETSCH Co., Ltd.).

[0068] [Example 1] According to the formulation shown in Table 1, powdered or granular carbonated foaming compositions were obtained. 158.6 g of citric acid (Iwata Chemical Industry Co., Ltd., citric acid anhydrous 60), 39.5 g of magnesium oxide (Kyowa Chemical Industry Co., Ltd.), 84.7 g of talc (Asada Flour Milling Co., Ltd., SW-K4), and 16.3 g of cationized hydroxyethyl cellulose (The Dow Chemical Company, Soft Cat Polymer SL-30) were charged into a fluidized bed granulator (Powrex Corporation, FD-MP-01E) with an air volume of 0.2 m. 3 Granulation was performed under conditions of a flow rate of 4 g / min, an intake air temperature of 80°C, and 90 g of a 1.0% aqueous solution of carboxymethylcellulose (Sunrose, manufactured by Nippon Paper Industries Co., Ltd., hereinafter also referred to as CMC) (solid content: 0.9 g) was added at a rate of 4 g / min to obtain granules with a median diameter of 175 μm. The obtained granules and 264.3 g of sodium bicarbonate (hereinafter also referred to as sodium bicarbonate, manufactured by AGC Inc.) were placed in a bag and mixed by hand in a transparent vinyl bag until uniform, to produce a powder or granular carbonated foaming composition. The resulting powdered or granular carbonated foaming composition was used to carry out various evaluations 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 (baking soda) used as raw materials, and the particle sizes in the produced powdered or granular carbonated foaming composition (product).

[0069] [Examples 2 and 3] A powdered or granular carbonated foaming composition was obtained in the same manner as in Example 1, except that the formulation shown in Table 1 was used. The resulting powdered or granular carbonated foaming composition was used to carry out various evaluations 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 composition (product).

[0070] [Example 4] Sodium bicarbonate was granulated according to the formulation shown in Table 1. 195.3 g of sodium bicarbonate (AGC Corporation), 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 (Powrex Corporation FD-MP-01E) and granulated under the same conditions as in Example 1 while adding 66 g of a 1.0% CMC aqueous solution (solids content: 0.7 g) at a rate of 4 g / min. Granules with a median diameter of 145 μm were obtained. The resulting granules and 117.2 g of citric acid (Iwata Chemical Industry Co., Ltd., citric acid anhydrous 60) were hand-mixed in a transparent plastic bag until uniform, producing a powder or granular carbonated foaming composition. The resulting powdered or granular carbonated foaming composition was used to carry out various evaluations 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 composition (product).

[0071] [Example 5] A powdered or granular carbonated foaming composition was obtained in the same manner as in Example 1, except that citric acid (citric acid fine powder manufactured by Iwata Chemical Industry Co., Ltd.) was used. The resulting powdered or granular carbonated foaming composition was used to carry out various evaluations 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 composition (product).

[0072] [Example 6] A carbonated foaming composition was obtained in the same manner as in Example 1, except that 142.9 g of citric acid (citric acid anhydrous 60 manufactured by Iwata Chemical Industry 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 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 used as raw materials and the particle sizes in the powdered or granular carbonated foaming composition (product) obtained by production.

[0073] [Comparative Examples 1 to 3] According to the formulation shown in Table 3, powdered or granular carbonated effervescent compositions were obtained. In Comparative Examples 1 to 3, all ingredients were placed in a bag without granulation and mixed by hand in a transparent vinyl bag until uniform, thereby obtaining powdered or granular carbonated foaming compositions. The resulting powdered or granular carbonated foaming composition was used to carry out various evaluations 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 resulting powdered or granular carbonated foaming composition (product).

[0074] Comparative Example 4 According to the formulation shown in Table 3, powdered or granular carbonated effervescent compositions were obtained. 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 4 mm diameter mold and hand-pressed at 10 MPa to obtain a 4 mm diameter compression molded product. The obtained compression-molded product was pulverized in a mortar, and the powder that passed through a 250 μm sieve was collected to obtain a powder or granular carbonated foaming composition with a median diameter of 176 μm.

[0075] [Effervescent (no added water)] 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 foaming occurred naturally (approximately 10 seconds after adding the shampoo liquid), the composition was mixed with the fingers of the other hand to create a lather. While continuing to foam, the foaming action was then continued, and within 3 minutes after adding the shampoo liquid, a three-member expert panel evaluated the foaming ability according to the following criteria, and the results were determined by discussion among the expert panels. 1: Foams up to a palm-full in under 30 seconds 2: Foams up to a palm-full in 30 seconds or more but less than 1 minute 3: Foams to the palm of your hand in 1 to 2 minutes 4: The foam fills the palm of your hand in 2 to 3 minutes. 5: It takes more than 3 minutes to foam sufficiently

[0076] [Effervescent (with added water)] One gram of each powder or granular carbonated foaming composition was placed in the palm of the hand, and 5 grams of water at 42°C was added to the powder or granular carbonated foaming composition. The water was thoroughly mixed with the powder or granular carbonated foaming composition on the palm of the hand, allowing it to foam naturally (approximately 10 seconds after the water was added). 6 grams of commercially available shampoo (Essential the Beauty, Kao Corporation) was then added, and the powder or granular carbonated foaming composition was thoroughly mixed with the shampoo on the palm of the hand, allowing it to foam naturally. The shampoo was then mixed with the fingers of the other hand to create a lather. While continuing to lather, a three-member expert panel evaluated the lathering performance within 3 minutes of adding the water, according to the following criteria, and the results were determined by discussion among the expert panels. 1: Foams up to a palm-full in under 30 seconds 2: Foams up to a palm-full in 30 seconds or more but less than 1 minute 3: Foams to the palm of your hand in 1 to 2 minutes 4: The foam fills the palm of your hand in 2 to 3 minutes. 5: It takes more than 3 minutes to create a palm-full of foam.

[0077] [Storage stability] 3.9 g of each powdered or granular carbonated foamable composition was sealed in an 80 mm × 50 mm × 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 performed 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.

[0078] [Usage feel (texture / no water added)] 1 g of powdered 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 powdered or granular carbonated foaming composition. The shampoo liquid was thoroughly blended into the powdered or granular carbonated foaming composition on the palm of the hand, allowing it to foam naturally, and then the powdered or granular carbonated foaming composition was mixed with the fingers of the other hand to create a lather. Thereafter, while continuing the foaming action, a three-member expert panel evaluated the feel of the foam within three minutes of adding the shampoo liquid to the powder or granular carbonated foaming composition according to the following criteria, and the results were determined by discussion among the expert panel. 1: No roughness felt from the start 2: It feels rough at first, but it disappears as you start to lather. 3: It feels rough at first, but it disappears while whipping 4: Feels rough, but disappears after lathering 5: Feels rough and doesn't go away even after lathering (The above "initial foaming" refers to within 1 minute after adding the shampoo liquid to the powdered or granular carbonated foaming composition, "during foaming" refers to more than 1 minute but not more than 2 minutes after adding the shampoo liquid to the powdered or granular carbonated foaming composition, and "after foaming" refers to more than 2 minutes but not more than 3 minutes after adding the shampoo liquid to the powdered or granular carbonated foaming composition.)

[0079] [Usage feel (texture / water added)] 1 g of each carbonated foaming composition was placed in the palm of the hand, 5 g of 42°C water was added to the carbonated foaming composition, the water was thoroughly mixed into the carbonated foaming composition on the palm, and after foaming had occurred naturally (approximately 10 seconds after the water was added), 6 g of a commercially available shampoo (Essential the Beauty, Kao Corporation) was added, the shampoo was thoroughly mixed into the carbonated foaming composition on the palm, and after foaming had occurred naturally, the mixture was mixed with the fingers of the other hand to create a lather. While continuing to lather, a three-member expert panel evaluated the feel of the lather within 3 minutes of adding the water according to the following criteria, and the results were determined by discussion among the expert panel. 1: No roughness felt from the start 2: It feels rough at first, but it disappears as you start to lather. 3: It feels rough at first, but it disappears while whipping 4: Feels rough, but disappears after lathering 5: Feels rough and doesn't go away even after lathering (The above "initial foaming" refers to within 1 minute after adding water to the carbonated foaming composition, "during foaming" refers to more than 1 minute but not more than 2 minutes after adding water to the carbonated foaming composition, and "after foaming" refers to more than 2 minutes but not more than 3 minutes after adding water to the carbonated foaming composition.)

[0080] [Table 1]

[0081] [Table 2]

[0082] [Table 3]

[0083] [Table 4]

[0084] *1 In the "Granulation state" section of Tables 1 to 4, "organic acid granulation" refers to the granulation of all ingredients except for the carbonate (organic acid, excipient, water-soluble polymer, and moisture absorbent). In the case of organic acid granulation, the carbonate (sodium bicarbonate) was used as raw material particles without granulation. "Carbonate granulation" refers to granulation of carbonate and all ingredients other than the organic acid (excipients, water-soluble polymers, and moisture absorbents). In the case of carbonate granulation, the organic acid (citric acid) was used as raw material particles without granulation. "Ungranulated" refers to a state in which all powder ingredients are used without granulation. *2 Soft Cat Polymer SL-30 manufactured by The Dow Chemical Company *3 Sun Rose, manufactured by Nippon Paper Industries Co., Ltd. *6 In Tables 1 and 3, "in the total detergent composition" means "in all particles constituting the powder or granular detergent composition."

[0085] Tables 1 and 3 show that the powdered or granular carbonated foaming compositions of the present examples have excellent storage stability and a pleasant feel. Furthermore, all of the shampoos to which the powder or granular carbonated foaming composition of this example was applied exhibited good foaming properties, foam rinsing, and foam retention. [Industrial Applicability]

[0086] According to the present invention, a powdery or granular carbonated foaming composition can be provided that has high storage stability, is suppressed in roughness to the touch, and provides a good feel when used. When used in combination with hair cosmetics such as shampoos and conditioners, the carbonated foaming composition can be used to form hair cosmetics into foam-like formulations.

Claims

1. Contains carbonate and organic acid, 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 particle diameter of 100 μm or more and a hardness of 5 gf or more is 0.10% by number or less; Powdered or granular carbonated effervescent composition.

2. 2. The powdered or granular carbonated foaming composition according to claim 1, wherein particles having a hardness of 5 gf or more account for 45% or less by number of particles having a particle diameter of 100 μm or more.

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

4. 2. The powdered or granular carbonated foaming composition according to claim 1, wherein the organic acid comprises one or more selected from the group consisting of citric acid, succinic acid, tartaric acid, and ascorbic acid.

5. 2. The powdered or granular carbonated foaming composition according to claim 1, wherein the carbonate comprises at least one selected from the group consisting of sodium carbonate and sodium bicarbonate.

6. 4. The powdered or granular carbonated foaming composition according to claim 3, wherein the moisture absorbent is magnesium oxide.

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

8. The particle (A) containing the carbonate and the particle (B) containing the organic acid are contained, The powdered or granular carbonated foaming composition according to claim 1, wherein the particles (A) do not contain an organic acid, and the particles (B) do not contain a carbonate.

9. Further containing an excipient, 9. The powdered or granular carbonated foaming composition according to claim 8, wherein 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, A method for producing a powdered or granular carbonated foaming composition, 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. 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.

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