Powdered or granular carbonate 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 powdery or granular carbonic acid foaming composition.

Background Art

[0002] In recent years, foam-type shampoos, facial cleansers, and body soaps have attracted attention from the viewpoint of easy availability. Among these, a foaming cosmetic composition that utilizes the property of a mixture of carbonate and organic acid to generate carbon dioxide gas by adding a small amount of water to generate fine bubbles of carbon dioxide gas has been reported (Patent Document 1). It is disclosed that this foaming cosmetic composition can be used as a facial cleansing soap, shaving foam, shampoo, or body soap. However, in the foaming cosmetic composition described in Patent Document 1, even a trace amount of water in the mixture of carbonate and organic acid generates carbon dioxide gas during storage, and water is generated as a by-product by the reaction, so the reaction occurs chain-like, and as a result, there are problems such as the packaging swelling or the foaming property decreasing during use.

[0003] Regarding this problem, techniques for improving storage stability have been reported. For example, Patent Document 2 discloses foaming granules that contain an oily component and have a particle diameter of 150 μm to 1500 μm, thereby improving storage stability. Further, Patent Document 3 discloses a bath agent composition having good storage stability by containing the following components (A) to (C): (A) 25 to 55% by mass of an alkali metal carbonate in which particles having a particle diameter of 180 μm or more are 50% or more, (B) 40 to 70% by mass of an organic acid in which particles having a particle diameter of 180 μm or more are 50% or more, and (C) 0.01 to 10% by mass of a hardly water-soluble metal oxide.

Prior Art Documents

Patent Documents

[0004]

Patent Document 1

Patent Document 2

[0005] However, since the technique described in Patent Document 2 uses a compression granulation method, the instant solubility of the granules decreases. Therefore, when this technique is used for a carbonated foaming composition used when foaming shampoo etc. by hand, roughness is caused by the undissolved components, and it has been found that the feel during use deteriorates because the feel during use is impaired. Further, Patent Document 3 is a technique related to a bath agent. When the bath agent composition dissolves on the surface of the bath water, carbon dioxide gas escapes without being sufficiently dissolved in the bath water. Therefore, in order to dissolve the bath agent composition in the bath water, it is necessary to sink the bath agent composition in the bath water and keep it in the bath water for a certain period of time. Therefore, it is premised that raw material particles having a certain particle size are used as the particles constituting the bath agent composition. On the other hand, in the carbonated foaming composition used when foaming by hand, instant solubility that allows it to be instantly dissolved in a small amount of liquid in a short time is required. Therefore, when particles having a large particle size are used as the carbonated foaming composition, the solubility is poor, and the same problem of roughness occurs. Unlike bath agents, carbonated foaming compositions are applied to hair and the body and directly touch the skin, so a delicate texture (feel) is required. Accordingly, an object of the present invention is to provide a carbonated foaming composition having high storage stability, suppressing roughness of the feel, and having a good feel during use. [Means for Solving the Problems

[0006] As a result of investigations, the present inventors have found that a powdery or granular carbonated foaming composition containing a carbonate and an organic acid, containing a predetermined amount or more of particles having a particle size equal to or greater than a predetermined value, and having a content of particles having a particle size and hardness equal to or greater than a predetermined value equal to or less than a predetermined amount can solve the above problems. That is, the present invention relates to a powdery or granular carbonated foaming composition containing a carbonate and an organic acid, containing 30% by mass or more of particles having a particle size of 100 μm or more, and having a content of particles having a hardness of 5 gf or more among the particles having a particle size of 100 μm or more of 0.10% by number or less.

Advantages of the Invention

[0007] According to the present invention, it is possible to provide a carbonated foaming composition having high storage stability, suppressed roughness in touch, and good usability.

Embodiments for Carrying Out the Invention

[0008] The powdery or granular carbonated foaming composition of the present invention contains a carbonate and an organic acid, contains 30% by mass or more of particles having a particle size of 100 μm or more, and the content of particles having a hardness of 5 gf or more among the particles having a particle size of 100 μm or more is 0.10% by number or less. The powdery or granular carbonated foaming composition of the present invention (hereinafter, also simply referred to as a carbonated foaming composition) is used, for example, to form a surfactant-containing composition such as a shampoo or a conditioning agent into a foamy dosage form. Therefore, the powdery or granular carbonated foaming composition of the present invention is applied to the surface of the human body including the skin and hair in combination with a surfactant-containing composition. Therefore, a good usability without roughness in touch when foamed is required, and it is necessary to dissolve immediately in a short time, and it is desirable that the particle size of the particles constituting the carbonated foaming composition is small. However, when the particle size of the carbonated foaming composition is small, even if a moisture absorbent is added, its effect is not sufficient, the generation of carbon dioxide gas in the packaging material cannot be suppressed, and it has been found that the storage stability is poor. Therefore, in order to suppress the generation of carbon dioxide gas during storage, it is necessary to increase the particle size of the carbonate and the organic acid. As a result of intensive studies to solve this conflicting demand, the present inventors have found that the hardness and particle size of the particles constituting the carbonated foaming composition are deeply related to the touch during use and the storage stability, and by adjusting the hardness and particle size of the particles in the carbonated foaming composition, it is possible to achieve both good touch and storage stability, and the present invention has been completed. According to the powder or granular carbonic acid foaming composition of the present invention, by containing particles having a particle size of 100 μm or more in a predetermined amount or more and setting the content of particles having a particle size of 100 μm or more and a hardness of 5 gf or more to a predetermined number% or less, roughness of the touch during use can be suppressed, and a good feeling in use can be obtained.

[0009] The powder or granular carbonic acid foaming composition of the present invention may contain a surfactant as long as it does not inhibit the efficacy of the surfactant-containing composition used in combination. The content of the surfactant may be less than 10% by mass, may be 7% by mass or less, may be 5% by mass or less, and may be 1% by mass or more, may be 2% by mass or more, or may be 3% by mass or more. Note that the surfactant-containing composition will be described in detail in the section on the method of using the powder or granular carbonic acid composition.

[0010] <Surfactant> Examples of the surfactant 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 surfactant〕 Specific examples of the anionic surfactant include N-acyl amino acid salts, N-acyl-N-methyl amino acid salts, fatty acid salts, salts of esters of fatty acids having 5 to 18 carbon atoms and isethionic acid, alkyl or alkenyl sulfonate salts having 10 to 18 carbon atoms, polyoxyalkylene alkyl ether sulfate ester salts, and linear alkylbenzene sulfonate salts, etc.

[0012] As counterions of the anionic group of the anionic surfactant, there are alkali metal ions such as sodium ion and potassium ion; alkaline earth metal ions such as calcium ion and magnesium ion; ammonium ion; alkanolammonium having 1 to 3 alkanol groups with 2 or 3 carbon atoms (for example, monoethanolammonium, diethanolammonium, triethanolammonium, triisopropanolammonium, etc.). Among them, sodium ion and potassium ion are preferred, and sodium ion is more preferred.

[0013] 〔Cationic surfactant〕 Examples of the cationic surfactant include quaternary ammonium salts such as alkyltrimethylammonium salt, alkoxyalkyltrimethylammonium salt, dialkyldimethylammonium salt, alkylamidalkyltrimethylammonium salt, benzalkonium chloride, and alkylpyridinium salt.

[0014] As counterions of the cationic group of the cationic surfactant, there are alkyl sulfate ions having 1 to 3 carbon atoms, sulfate ions, phosphate ions, carboxylic acid ions having 1 to 3 carbon atoms (formate ion, acetate ion, propionate ion), and halide ions such as chloride ion and bromide ion. Among these, from the viewpoints of ease of production and availability of raw materials, halide ions are preferred, and chloride ions are more preferred.

[0015] 〔Amphoteric surfactant〕 Examples of the amphoteric surfactant include one or more selected from the group consisting of alkylamine oxide having an alkyl group with 10 to 18 carbon atoms and alkyl betaine having an alkyl group with 10 to 18 carbon atoms.

[0016] 〔Nonionic surfactant〕 Specific examples of the nonionic surfactant include, for example, one or more selected from the group consisting of polyoxyethylene alkyl ether, polyoxyethylene alkenyl ether, polyoxyethylene sorbitan fatty acid ester, polyoxyethylene sorbit fatty acid ester, polyoxyethylene fatty acid ester, alkyl glucoside, alkyl alkanolamide, alkyl glyceryl ether, higher fatty acid sucrose ester, polyglycerin fatty acid ester, polyoxyethylene hydrogenated castor oil, and alkyl saccharide. Among the above, from the viewpoints of good solubility in water and good foaming property, an anionic surfactant is preferable, and a salt of an ester of a fatty acid having 5 to 18 carbon atoms and isethionic acid is more preferable. Further, from the viewpoint of low irritation, amino acid-based anionic surfactants such as N-acyl amino acid salts and N-acyl-N-methyl amino acid salts are preferable.

[0017] <Carbonate> The powdery or granular carbonated foaming composition of the present invention contains a carbonate. Examples of the carbonate 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; etc. One or more of these can be used. Among the above, from the viewpoint of improving foamability, the carbonate preferably contains one or more selected from the group consisting of sodium carbonate (Na2CO3) and sodium hydrogen carbonate (NaHCO3), and more preferably contains sodium hydrogen carbonate. The content of one or more selected from the group consisting of sodium carbonate and sodium hydrogen carbonate in the carbonate 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 from the viewpoint of improving foamability.

[0018] The content of the carbonate in the powdery or granular carbonated foaming composition is preferably 15% by mass or more, more preferably 25% by mass or more, still more preferably 30% by mass or more, and even more preferably 35% by mass or more from the viewpoint of improving foamability. And from the viewpoint of improving foam retention, it is preferably 65% by mass or less, more preferably 60% by mass or less, still more preferably 55% by mass or less. And the content of the carbonate in the powdery 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, still 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 present invention may be contained as raw material particles as they are (hereinafter also referred to as "raw material particles") in the powdery or granular carbonated foaming composition of the present invention, and may be contained as particles granulated with other components as needed (hereinafter also referred to as "granulated particles"), or these may be mixed and contained. Further, when the carbonate is granulated particles, it may be granulated alone or together with components other than the carbonate. However, in the case of granulated particles, from the viewpoint of storage stability, it is preferably free of organic acids. Here, "free of" means substantially free of, and the amount of the 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 one or more selected from the group consisting of other components other than organic acids, for example, excipients, water-soluble polymers (binders, feel modifiers), and moisture absorbers, and particularly preferably granulated together with all components other than organic acids. By granulating components other than organic acids together, the amount of fine powder derived from components other than organic acids can be suppressed, and choking caused by the scattering of fine powder during the use of the carbonated foaming composition can be prevented.

[0020] <Organic acid> The powdery or granular carbonated foaming composition of the present invention contains an organic acid. Examples of the organic acid used in the present invention include citric acid, tartaric acid, malic acid, malonic acid, pyridonecarboxylic acid, succinic acid, fumaric acid, adipic acid, glutaric acid, ascorbic acid, etc., and one or more of these can be used. Among these, from the viewpoints of foamability 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. 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, from the viewpoint of improving foamability.

[0021] From the viewpoint of improving foamability, the content of the organic acid in the powdery or granular carbon dioxide foaming composition is preferably 5% by mass or more, more preferably 10% by mass or more, still more preferably 15% by mass or more, and even more preferably 20% by mass or more. And from the viewpoint of improving foam retention, it is preferably 60% by mass or less, more preferably 50% by mass or less, still more preferably 45% by mass or less, even more preferably 40% by mass or less, and even more preferably 35% by mass or less. And the content of the organic acid in the powdery or granular carbon dioxide 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, still 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 present invention may be contained as raw material particles as they are in the powder or granular carbon dioxide foaming composition of the present invention, or may be contained as granulated particles granulated with other components as necessary, or these may be mixed and contained. Further, when the organic acid is granulated particles, it may be granulated alone or together with components other than the organic acid. However, in the case of granulated particles, from the viewpoint of storage stability, it is preferably free of carbonate. Here, "free of" means substantially free of, and the amount of carbonate in the granulated particles is preferably less than 1% by mass, more preferably 0% by mass. Further, the organic acid is preferably granulated together with one or more selected from the group consisting of components other than carbonate, such as excipients, binders, and moisture absorbents, and particularly preferably granulated together with all components other than carbonate. By granulating components other than carbonate together, the amount of fine powder derived from components other than carbonate can be suppressed, and choking due to scattering of the fine powder during use of the carbon dioxide foaming composition can be prevented.

[0023] In the powder or granular carbon dioxide foaming composition, the mass ratio of the organic acid to the carbonate [organic acid / carbonate] is preferably 0.05 or more, more preferably 0.1 or more, still more preferably 0.2 or more, and preferably 10 or less, more preferably 5.0 or less, still more preferably 1.0 or less, from the viewpoint of foamability. And 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, still more preferably 0.2 or more and 1.0 or less.

[0024] From the perspective of foamability, the total amount of carbonate and organic acid in the powdery or granular carbonic acid foaming composition is preferably 50% by mass or more, more preferably 60% by mass or more, still more preferably 65% by mass or more. And from the perspective of improving foam retention, it is preferably 90% by mass or less, more preferably 85% by mass or less, still more preferably 80% by mass or less. And the total amount of carbonate and organic acid in the powdery or granular carbonic acid foaming 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, still more preferably 65% by mass or more and 80% by mass or less.

[0025] <Desiccant> The powdery or granular carbonic acid foaming composition of the present invention preferably further contains a desiccant. Examples of the desiccant used in the present invention include alkaline earth metal oxides such as magnesium oxide, calcium oxide, and zinc oxide. Among the above, magnesium oxide is preferable from the viewpoints of storage stability and improvement of foamability.

[0026] From the perspective of improving storage stability, the content of the desiccant in the powdery or granular carbonic acid foaming composition is preferably 0.01% by mass or more, more preferably 0.1% by mass or more, still more preferably 1% by mass or more, even more preferably 2% by mass or more, even more preferably 4% by mass or more. And from the perspective of improving foamability, it is preferably 15% by mass or less, more preferably 12% by mass or less, still more preferably 10% by mass or less. And the content of the desiccant in the powdery or granular carbonic acid 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, still more preferably 1% by mass or more and 12% by mass or less, even more preferably 2% by mass or more and 10% by mass or less, even more preferably 4% by mass or more and 10% by mass or less.

[0027] <Other components> The powdery or granular carbonic acid foaming composition of the present invention may contain components generally used in powdery or granular carbonic acid foaming compositions, as long as the object of the present invention is not impaired. Examples of such other components include excipients, water-soluble polymers, thickeners, natural pigments, humectants, anti-inflammatory agents, bactericides, antiperspirants, antioxidants, fragrances, and mixtures thereof. In addition, from the viewpoint of foamability, the powdery or granular carbonic acid foaming composition of the present invention preferably does not substantially contain oily components such as fragrances, and the content of the oily component is preferably less than 2% by mass, more preferably 1.5% by mass or less, still 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 in the powdery or granular carbonic acid foaming composition.

[0028] Examples of the excipient used in the present invention include inorganic powders such as 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 (mica titanium), bismuth oxychloride, boron nitride, zirconium oxide, titanium oxide, lower titanium oxide, metal tungstates, hydroxyapatite, zeolite, ceramic powder, chlorohydroxyaluminum, aluminum chloride, aluminum sulfate, basic aluminum bromide, basic aluminum iodide, chlorohydroxyaluminum zirconium, zinc sulfate, basic aluminum zinc lactate, aluminum oxide, calcium sulfate, barium sulfate, magnesium sulfate, red iron oxide, black iron oxide, yellow iron oxide, ultramarine, navy blue, chromium oxide, chromium hydroxide, calamine, carbon black; monosaccharides such as glucose, fructose, galactose, mannose; disaccharides such as lactose, trehalose, maltose; starches such as starch, potato starch; sugar alcohols such as mannitol, maltitol, xylitol, erythritol; etc. One or more of these can be used. The content of the excipient in the powdery or granular carbonated foaming composition is preferably 5% by mass or more, more preferably 10% by mass or more, from the viewpoints of solubility, granulation property, foaming property, and storage stability, and is preferably 50% by mass or less, more preferably 40% by mass or less, still more preferably 30% by mass or less. And the content of the excipient in the powdery 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, still more preferably 10% by mass or more and 30% by mass or less.

[0029] As the water-soluble polymer used in the present invention, polysaccharide-based ones are preferable from the viewpoint of improving the usability, and such water-soluble polymers can be used as a feel adjuster and a binder described later. Examples of the water-soluble polymer 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 can be used. Among the above, from the viewpoint of stabilizing the foam generated when contacting with the surfactant-containing composition and improving the usability when added and used in the surfactant-containing composition such as hair cosmetics, water-soluble cationized polysaccharides are preferable, and 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 still 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 powdery or granular carbonic acid foaming composition is preferably 0.1% by mass or more, more preferably 1.0% by mass or more, still more preferably 2.5% by mass or more, from the viewpoint of stabilizing the foam generated when added to the surfactant-containing composition and improving the usability when used by adding to a surfactant-containing composition such as a hair cosmetic. And it is preferably 30% by mass or less, more preferably 20% by mass or less, still more preferably 10% by mass or less, even more preferably 5.0% by mass or less. And the content of the water-soluble polymer in the powdery or granular carbonic acid 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, still more preferably 1.0% by mass or more and 10% by mass or less, even more preferably 2.5% by mass or more and 5.0% by mass or less.

[0031] The content of the feel regulator in the powdery or granular carbonic acid foaming composition is preferably 0.01% by mass or more, more preferably 0.3% by mass or more, still 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 the surfactant-containing composition and improving the usability when used by adding to a surfactant-containing composition such as a hair cosmetic. And it is preferably 29.8% by mass or less, more preferably 25.3% by mass or less, still more preferably 19.8% by mass or less, even more preferably 9.8% by mass or less, even more preferably 4.8% by mass or less. And the content of the feel regulator in the powdery or granular carbonic acid 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, still 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, even more preferably 2.3% by mass or more and 4.8% by mass or less.

[0032] <Powdery or granular carbonic acid foaming composition> The powdery or granular carbonic acid foaming composition of the present invention contains 30% by mass or more of particles having a particle size of 100 μm or more, and the content of particles having a hardness of 5 gf or more among the particles having a particle size of 100 μm or more is 0.10% by number or less. That is, in the particles constituting the powdery or granular carbonic acid foaming composition of the present invention, particles having a particle size of 100 μm or more are contained in an amount of 30% by mass or more, and among the particles constituting the powdery or granular carbonic acid foaming composition, 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. By containing 30% by mass or more of particles having a particle size of 100 μm or more, the storage stability can be enhanced, and by setting the content of particles having a particle size of 100 μm or more and a hardness of 5 gf or more to 0.10% by number or less, it is possible to suppress the roughness of the touch and improve the usability.

[0033] Also, at least a part of the particles having a particle size of 100 μm or more is preferably granulated particles. From the viewpoint of improving the usability, particularly suppressing the roughness of the touch, the content of the 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, further preferably more than 65% by number, still further preferably more than 70% by number, and most preferably all are granulated particles. However, from the viewpoint of production efficiency, a part may contain particles of the raw material as it is. If they are granulated particles, since the hardness can be easily adjusted, it is possible to adjust the content of particles having a particle size of 100 μm or more and a hardness of 5 gf or more. The content of the granulated particles among the particles having a particle size of 100 μm or more in the particles constituting the powdery or granular carbonic acid foaming composition of the present invention can be determined by sieving with a sieve having a mesh size of 100 μm, observing the particles having a particle size of 100 μm or more obtained by SEM, and actually measuring the percentage by number.

[0034] Generally, the carbonate particles and organic acid particles as raw materials have high hardness. If the raw materials with large particle sizes are used as they are, the content of particles having a particle size of 100 μm or more and a hardness of 5 gf or more will be high, and when the carbonic acid foaming composition is dissolved in water, the touch will deteriorate due to the undissolved particles. However, by using at least a part of the particles having a particle size of 100 μm or more as granulated particles, it is possible to reduce the content of particles with high hardness, suppress the roughness of the touch, and improve the usability. As an example in which one part is granulated particles, there is a case where either an organic acid or a carbonate is used as the granulated particles and the other is used as it is as a raw material. More specifically, one or more selected from the group consisting of components constituting a carbonate foaming composition other than the organic acid, preferably an excipient, a water-soluble polymer (binder, feel modifier), and a hygroscopic agent, more preferably all components other than the organic acid and the carbonate are used as granulated particles, and the organic acid is used as it is as a raw material without granulation, or components constituting a carbonate foaming composition other than the carbonate, preferably one or more selected from the group consisting of an excipient, a water-soluble polymer (binder, feel modifier), and a hygroscopic agent, more preferably all components other than the carbonate and the organic acid are used as granulated particles, and the carbonate is used as it is as a raw material without granulation. From the viewpoint of production efficiency, it is preferable to use the organic acid as granulated particles and the carbonate as raw material particles as they are. Further, it is preferable that the granulated particles contain an excipient. The organic acid and the carbonate are preferably not granulated together and are each in the form of separate independent particles. By forming the organic acid and the carbonate into separate independent particles, the storage stability and the foaming property can be further improved.

[0035] The powdery or granular carbonate foaming composition of the present invention preferably contains particles (A) containing a carbonate and particles (B) containing an organic acid. Here, it is preferable that the particles (A) do not contain an organic acid and the particles (B) do not contain a carbonate. Further, it is preferable that the particles (A) or the particles (B) contain an excipient, or it is preferable that both the particles (A) and the particles (B) contain an excipient. Specifically, the powdery or granular carbonate foaming composition of the present invention may contain particles (A) containing a carbonate and particles (B) containing an organic acid and an excipient, may contain particles (A) containing a carbonate and an excipient and particles (B) containing an organic acid, or may contain particles (A) containing a carbonate and an excipient and particles (B) containing an organic acid and an excipient.

[0036] The content (mass ratio) of particles having a particle size of 100 μm or more in all the particles constituting the powdery or granular carbonate foaming composition of the present invention can be measured by a sieving method. The content of particles with a particle size of 100 μm or more and a hardness of 5 gf or more among all the particles constituting the powdery or granular carbonic acid foaming composition of the present invention can be measured by the following method. (i) First, calculate the content (number ratio) of particles with a particle size of 100 μm or more among all the particles. Specifically, using a Camsizer XT (particle size measuring device, manufactured by RETSCH), measure the particle size distribution. Among the obtained distribution, particles with a particle size of 1 to 3000 μm are regarded as the "all particles" in the present invention, logarithmically and evenly divided into 100 parts, and the range of intervals including 100 μm or more is regarded as 100 μm or more and counted. Calculate the total number of particles with a particle size of 100 μm or more, and calculate the content rate (number ratio) of particles with a particle size of 100 μm or more among all the particles. (ii) Next, calculate the content (number ratio) of particles with a hardness of 5 gf or more among the particles with a particle size of 100 μm or more. Specifically, sieve the powdery or granular carbonic acid foaming composition with a sieve having an aperture of 100 μm. From the obtained particles with a particle size of 100 μm or more, sample 20 or more arbitrarily, and use a micro compression tester (manufactured by Shimadzu Corporation, MCT series) to measure the hardness of each particle one by one, and calculate the content rate of particles with a hardness of 5 gf or more. Repeat this operation 3 times and calculate the average value. As the hardness of the particle, the load (gf) at the breaking point of the particle loaded using the micro compression tester can be adopted as the hardness of the particle. In addition, when the particle collapses in multiple stages, the load at the first breaking point (hereinafter, also referred to as the first breaking point) that occurs first is adopted as the hardness of the particle. (iii) Next, by multiplying the content (number ratio) of particles with a particle size of 100 μm or more among all the particles obtained in (i) by the content (number ratio) of particles with a hardness of 5 gf or more among the particles with a particle size of 100 μm or more obtained in (ii), the content (number ratio) of particles with a particle size of 100 μm or more and a hardness of 5 gf or more among all the particles can be calculated.

[0037] Among all the particles constituting the powdery or granular carbon dioxide foaming composition of the present invention, the particles having a particle size of 100 μm or more are, from the viewpoint of storage stability, 30% by mass or more, preferably 35% by mass or more, more preferably 40% by mass or more, still 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. And from the viewpoint of productivity, it is preferably 100% by mass or less, more preferably 95% by mass or less, and still more preferably 90% by mass or less. Among all the particles, the particles having a particle size of 100 μm or more are 30% by mass or more, preferably 30% by mass or more and 100% by mass or less, more preferably 35% by mass or more and 100% by mass or less, still more preferably 40% by mass or more and 95% by mass or less, even more preferably 50% by mass or more and 90% by mass or less, even more preferably 55% by mass or more and 90% by mass or less, even more preferably 65% by mass or more and 90% by mass or less, and even more preferably 70% by mass or more and 90% by mass or less.

[0038] Also, among all the particles constituting the powdery or granular carbon dioxide foaming composition of the present invention, the particles having a particle size of 100 μm or more are, from the viewpoint of storage stability, preferably 0.015% by number or more, more preferably 0.017% by number or more, still more preferably 0.02% by number or more, still more preferably 0.03% by number or more, and still more preferably 0.1% by number or more. And the upper limit value is preferably ideally 100% by number, but since fine powder is also included in the manufacturing process, from the viewpoint of productivity, it is preferably 1% by number or less, more preferably 0.7% by number or less, still more preferably 0.5% by number or less, and even more preferably 0.4% by number or less. Among all the particles, the particles having a particle size of 100 μm or more are preferably 0.015% by number or more and 1% by number or less, more preferably 0.017% by number or more and 0.7% by number or less, still more preferably 0.02% by number or more and 0.5% by number or less, still more preferably 0.03% by number or more and 0.5% by number or less, and still more preferably 0.1% by number or more and 0.4% by number or less. In all the particles constituting the powdery or granular carbonic acid foaming 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, still more preferably 0.04% by number or less, and even more preferably 0% by number, from the viewpoint of improving the usability, particularly suppressing the roughness of the touch. 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 still more preferably 0.01% by number or more.

[0039] Also, it is preferable that the content of particles having a hardness of 5 gf or more among the particles having a particle size of 100 μm or more is 45% by number or less. If the content of such particles is 45% by number or less, the usability can be improved, particularly the roughness of the touch can be suppressed. The content of particles having a hardness of 5 gf or more among the particles having a particle size of 100 μm or more is preferably 40% by number or less, more preferably 35% by number or less, and still more preferably 30% by number or less. The lower limit is not particularly limited and is preferably 0% by number, i.e., not contained, but from the viewpoint of productivity, it is preferably 1% by number or more, more preferably 5% by number or more, and still more preferably 10% by number or more.

[0040] In all the particles constituting the powdery or granular carbonic acid foaming composition of the present invention, the content of fine powder having a particle size of 10 μm or less is preferably 3.5% by mass or less, more preferably 3.3% by mass or less, still 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 the usability and storage stability, 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 still more preferably 0.003% by mass or more. And in all the particles, the content of fine powder having a particle size of 10 μm or less 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, still 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. Also, from the viewpoint of improving storage stability, the average hardness of particles with a particle size of 100 μm or more is preferably 0.3 gf or more, more preferably 0.4 gf or more, still more preferably 0.5 gf or more. Further, from the viewpoint of improving the usability, particularly suppressing the roughness of the touch, it is preferably less than 5 gf, more preferably 4.7 gf or less, still more preferably 4.5 gf or less. And the average hardness of particles with a particle size of 100 μm or more is preferably 0.3 gf or more and less than 5 gf, more preferably 0.4 gf or more and 4.7 gf or less, still more preferably 0.5 gf or more and 4.5 gf or less. Incidentally, the average value of the hardness is obtained by sampling any 20 or more particles with a particle size of 100 μm or more, measuring the hardness of each particle one by one using a micro compression tester (manufactured by Shimadzu Corporation, MCT series), and calculating the average value.

[0041] The powdery or granular carbonated foaming composition of the present invention can be suitably used as a foaming aid for surfactant-containing compositions, particularly for assisting the foaming of hair cosmetics such as shampoos and conditioning agents. The powdery or granular carbonated foaming composition of the present invention can be enclosed in a packaging material and provided. Since the powdery or granular carbonated foaming composition of the present invention hardly causes the swelling of the packaging material due to the generation of carbon dioxide gas even when stored enclosed in the packaging material, it has excellent storage stability in the product form enclosed in the packaging material. The shape of the packaging material is not particularly limited as long as it has a structure capable of enclosing the powdery or granular carbonated foaming composition, and examples include a bag shape and a bottle shape. Among these, a bag-shaped packaging material is preferred. The material constituting the packaging material is also not particularly limited as long as it can enclose the powdery 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 a metal oxide is laminated on the resin film can be used.

[0042] <Manufacturing method of powdery or granular carbonated foaming composition> The method for producing the powdery or granular carbonic acid foaming composition of the present invention includes a step of granulating at least one of a carbonate and an organic acid. One of the carbonate and the organic acid may be used as the raw material without granulation, or the carbonate and the organic acid may be granulated respectively and used as the granulated particles of the carbonate and the granulated particles of the organic acid. By using at least one of the carbonate and the organic acid as granulated particles, it becomes possible to produce a powdery or granular carbonic acid foaming composition with adjusted particle size and hardness, and it becomes possible to achieve both storage stability and usability.

[0043] The method for producing the powdery or granular carbonic acid foaming composition of the present invention preferably includes a step of mixing particles (A) containing a carbonate and particles (B) containing an organic acid. The particles (A) containing a carbonate preferably do not contain an organic acid. Also, the particles (A) containing a carbonate may be the raw material particles as they are, or may be the granulated particles of the carbonate. On the other hand, the particles (B) containing an organic acid preferably do not contain a carbonate. Also, the particles (B) containing an organic acid may be the raw material particles as they are, or may be the 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 preferable to granulate one or more selected from the group consisting of components constituting other cleaning agent compositions other than the organic acid, preferably a surfactant, an excipient, a binder, and a humectant, more preferably all components other than the organic acid, and the carbonate to obtain granulated particles. When granulating the organic acid, it is preferable to granulate one or more selected from the group consisting of components constituting other cleaning agent compositions other than the carbonate, preferably a surfactant, an excipient, a binder, and a humectant, more preferably all components other than the carbonate, and the organic acid to obtain granulated particles.

[0045] Also, as the raw materials, it is preferable to use a carbonate and an organic acid having a median diameter of 170 μm or less. 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, still more preferably 20 μm or more. From the viewpoint of improving foamability and feel, it is preferably 170 μm or less, more preferably 150 μm or less, still more preferably 120 μm or less, even more preferably 110 μm or less, even more preferably 100 μm or less, even more preferably 95 μm or less, and even more preferably 90 μm or less. And 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, even more preferably 20 μm or more and 110 μm or less, even more preferably 20 μm or more and 100 μm or less, even more preferably 20 μm or more and 95 μm or less, and even more preferably 20 μm or more and 90 μm or less. Further, as a more preferable median diameter of the carbonate as a raw material when granulating the carbonate, from the viewpoint of further improving foamability and feel in addition to the above viewpoints, in addition to the above range, it is even more preferably 100 μm or less, even more preferably 90 μm or less, even more preferably 70 μm or less, and even more preferably 60 μm or less. And it is 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. Further, as a more preferable median diameter when using the carbonate as a raw material without granulation, from the same viewpoints as above and the viewpoint of the balance between storage stability and feel, in addition to the above range, it is even more preferably 80 μm or more, even more preferably 90 μm or more, and also even more preferably 110 μm or less. And it is even more preferably 80 μm or more and 170 μm or less, even more preferably 80 μm or more and 150 μm or less, even more preferably 90 μm or more and 120 μm or less, and even more preferably 90 μm or more and 110 μm or less.

[0046] Also, from the viewpoint of improving productivity and storage stability, the median diameter of the organic acid as the raw material particles is preferably 10 μm or more, more preferably 15 μm or more, still more preferably 20 μm or more. And from the viewpoints of improving foamability and feel, it is preferably 500 μm or less, more preferably 400 μm or less, still more preferably 350 μm or less, even more preferably 170 μm or less, even more preferably 150 μm or less, even more preferably 120 μm or less, even more preferably 110 μm or less, even more preferably 100 μm or less, even more preferably 95 μm or less, even more preferably 90 μm or less. And the median diameter of the organic acid as the raw material is preferably 10 μm or more and 500 μm or less, more preferably 10 μm or more and 400 μm or less, still 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, still more preferably 15 μm or more and 120 μm or less, even more preferably 20 μm or more and 110 μm or less, even more preferably 20 μm or more and 100 μm or less, even more preferably 20 μm or more and 95 μm or less, even more preferably 20 μm or more and 90 μm or less. Also, from the viewpoint of further improving foamability and feel in addition to the above viewpoints, in addition to the above range, the more preferable median diameter of the organic acid as the raw material when granulating the organic acid is more preferably 30 μm or more, and also more preferably 70 μm or less, more preferably 60 μm or less, and more preferably 10 μm or more and 100 μm or less, more preferably 10 μm or more and 90 μm or less, more preferably 10 μm or more and 70 μm or less, more preferably 10 μm or more and 60 μm or less. In addition, when using the organic acid as a raw material without granulation, the preferred median diameter, from the same viewpoints as above and from the viewpoint of the balance between storage stability and feel, in addition to the above range, is more preferably 80 μm or more, still more preferably 90 μm or more, and still more preferably 110 μm or less. And still more preferably, it is 80 μm or more and 170 μm or less, still more preferably 80 μm or more and 150 μm or less, still more preferably 90 μm or more and 120 μm or less, and still more preferably 90 μm or more and 110 μm or less.

[0047] In addition, the carbonate and the organic acid are each preferably produced so as to have the following median diameters. From the viewpoint of storage stability, the median diameter of the carbonate in the powdery or granular carbon dioxide foaming composition (product) is preferably 80 μm or more, more preferably 90 μm or more, still more preferably 100 μm or more, still more preferably 110 μm or more, and still more preferably 120 μm or more. And from the viewpoint of productivity, it is preferably 500 μm or less, more preferably 400 μm or less, and still more preferably 300 μm or less. And the median diameter of the granulated product of the carbonate in the powdery or granular carbon dioxide foaming composition (product) is preferably 80 μm or more and 500 μm or less, more preferably 90 μm or more and 400 μm or less, and still more preferably 100 μm or more and 300 μm or less. Incidentally, from the viewpoint of improving the usability, particularly suppressing the roughness of the feel, it is preferable to use the carbonate as a granulated product, and in that case, it is preferable that the median diameter after granulation and before blending of the carbonate falls within the above range. Further, in addition to the above preferred range, from the viewpoint of further improving the storage stability, the median diameter when made into a granulated product is more preferably 110 μm or more and 300 μm or less, and still more preferably 120 μm or more and 300 μm or less. The preferred range of the median diameter of the carbonate in the powdery or granular carbon dioxide foaming composition (product) when using the carbonate as a raw material as it is is as described for the median diameter of the carbonate as the above-mentioned raw material particles.

[0048] Also, from the perspective of storage stability, the median diameter of the organic acid in the powdery or granular carbon dioxide foaming composition (product) is preferably 80 μm or more, more preferably 90 μm or more, still more preferably 100 μm or more, even more preferably 110 μm or more, and even more preferably 120 μm or more. And from the perspective of productivity, it is preferably 500 μm or less, more preferably 400 μm or less, and still more preferably 300 μm or less. And the median diameter of the granulated product of the organic acid in the powdery or granular carbon dioxide foaming composition (product) is preferably 80 μm or more and 500 μm or less, more preferably 90 μm or more and 400 μm or less, and still more preferably 100 μm or more and 300 μm or less. In addition, from the perspective of improving the usability, particularly suppressing the roughness of the touch, it is preferable to use the organic acid as a granulated product. In that case, the median diameter is preferably within the above range after granulation of the organic acid and before blending. Further, in addition to the above preferred range, from the perspective of further improving the storage stability, the median diameter when made into a granulated product is more preferably 110 μm or more and 300 μm or less, and even more preferably 120 μm or more and 300 μm or less. The preferred range of the median diameter of the organic acid in the powdery or granular carbon dioxide foaming composition (product) when using the organic acid as the raw material as it is is as described for the median diameter of the organic acid as the above-mentioned raw material particles.

[0049] Here, the median diameter (D50) means the particle diameter at which the cumulative volume frequency calculated by the volume fraction becomes 50% when calculated from the smaller particle diameter side. Specifically, the median diameter can be measured by the method described in the examples.

[0050] Also, from the perspective of further improving the touch, after removing particles with a particle diameter of preferably 500 μm or more, more preferably 400 μm or more, and still more preferably 300 μm or more from the raw material particles in advance using a sieve, granulation may be performed. In addition, as for other raw material components other than the carbonate and the organic acid, those with a median diameter equal to or less than the median diameter of the carbonate and the organic acid are used, and usually, it is 170 μm or less, for example, 5 μm or more and 150 μm or less.

[0051] As the granulation method, any of a fluidized bed granulation method, a stirring granulation method, a rolling granulation method, or an extrusion granulation method can be used. Among these, from the viewpoint of improving the solubility of the powdery or granular carbonic acid foaming composition in a liquid (water), the fluidized bed granulation method is preferable. Specifically, for example, raw material particles are charged into a fluidized bed granulator, and granulation can be carried out by adding a binder solution in which a binder is dissolved in water, ethanol, or a mixed solution thereof to the uniformly mixed powder and granules. As described above, from the viewpoint of improving storage stability, it is preferable that carbonate and organic acid are not simultaneously contained in the same granulated particles. The granulated particles can be mixed with the non - granulated particles by known means to produce a powdery or granular carbonic acid foaming composition. When the carbonate and the organic acid are granulated separately, each granulated particle (the granulated particle containing carbonate and the granulated particle containing organic acid) can be similarly mixed using known means to produce a powdery or granular carbonic acid foaming composition.

[0052] The binder used in granulation in the present invention is preferably selected from the above - mentioned water - soluble polymers. From the viewpoints of the instant solubility and productivity of the carbonic acid foaming composition, one or more 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 selected from hydroxyethyl cellulose, hydroxymethyl cellulose, carboxymethyl cellulose, xanthan gum, and carrageenan. Also, the content (solid content) of the binder in the binder solution is preferably 0.1% by mass or more, more preferably 0.3% by mass or more, still more preferably 0.5% by mass or more from the viewpoint of productivity, and is preferably 10% by mass or less, more preferably 8% by mass or less, still more preferably 5% by mass or less. And the content of the binder in the binder solution is preferably 0.1 - 10% by mass, more preferably 0.3 - 8% by mass, still more preferably 0.5 - 5% by mass. Furthermore, from the perspective of immediate solubility, the content (solid content) of the binder in the carbonated foaming composition is preferably 0.01% by mass or more, more preferably 0.05% by mass or more, still more preferably 0.1% by mass or more, and is preferably 10% by mass or less, more preferably 5% by mass or less, still more preferably 3% by mass or less. And the content of the binder in the carbonated foaming composition is preferably 0.01 to 10% by mass, more preferably 0.05 to 5% by mass, still more preferably 0.1 to 3% by mass.

[0053] <Method of using the powdery or granular carbonated foaming composition> The powdery or granular carbonated foaming composition of the present invention is used to make the surfactant-containing composition into a foamy dosage form by contacting it with the surfactant-containing composition during use. More specifically, the powdery or granular carbonated foaming composition of the present invention reacts with the liquid component (water) contained in the surfactant-containing composition or the liquid component (water) added as necessary when contacted with the surfactant-containing composition during use, so that the carbonate and the organic acid contained in the powdery or granular carbonated foaming composition react to generate carbon dioxide gas, making it possible to make the surfactant-containing composition into a foamy dosage form. Since the powdery or granular carbonated foaming composition of the present invention reacts with water and natural foaming starts, the foaming of the surfactant-containing composition is also fast, and there is no need for a special foaming operation that requires time and labor, so it can be easily used.

[0054] Also, the method of using the powdery or granular carbonated foaming composition of the present invention is also a foaming method and a cleaning method. That is, it is also a foaming method of the surfactant composition in which the powdery or granular carbonated foaming composition of the present invention is brought into contact with the surfactant-containing composition to make the surfactant-containing composition into a foamy dosage form. Also, it is also a cleaning method in which the powdery or granular carbonated foaming composition of the present invention is brought into contact with the surfactant-containing composition to make the surfactant-containing composition into a foamy dosage form, and the foamy surfactant composition is applied to the surface of the human body and washed. Further, the present invention also provides a hair washing method, which comprises bringing the powdery or granular carbon dioxide foaming composition of the present invention into contact with a surfactant-containing composition to form a foamy dosage form of the surfactant-containing composition, and applying and washing the foamy surfactant composition to the hair.

[0055] In the present 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 the skin and hair. Examples thereof include hair cosmetics, facial cleansers, body washes (body shampoos), etc. Examples of hair cosmetics include shampoos, rinses, conditioning agents, treatment agents, styling agents, hair dyes, hair growth agents, etc. Among the above, from the viewpoint of being able to more effectively exhibit the effects of the present invention, the surfactant-containing composition is preferably a hair cosmetic, more preferably one selected from the group consisting of shampoos, rinses, conditioning agents, and treatment agents, and even more preferably a shampoo. Also, from the viewpoint of being able to more effectively exhibit the effects of the present invention, the surfactant-containing composition is preferably in a liquid state.

[0056] When hair cosmetics are directly applied to the hair, friction may occur between the hair and the scalp during foaming or when making the hair conform, which may impose a burden on the hair and the scalp. However, by using the powdery or granular carbon dioxide foaming composition of the present invention in combination, it becomes possible to apply it as a foamy hair cosmetic, thus reducing the burden on the hair and the scalp. In addition, since the powdery or granular carbon dioxide foaming composition of the present invention has excellent instant solubility, it also has an excellent feel in use such as texture (hand feel) even when dissolved in hair cosmetics. Furthermore, the powdery or granular carbon dioxide foaming composition of the present invention can be used in combination with hair cosmetics such as commercially available shampoos and conditioning agents, and no special containers or tools are required for the foaming operation, so it has excellent versatility. In particular, when it is enclosed in a packaging material for each single use, it can be easily carried, so it can also be used when going out. In addition, a blood circulation promoting effect by carbon dioxide gas can also be expected.

[0057] As a method of using the powdery or granular carbonated foaming composition of the present invention, more specifically, for example, take the carbonated foaming composition in the palm of the hand, add a surfactant-containing composition to the carbonated foaming composition, and after sufficiently mixing water into the carbonated foaming composition on the palm of the hand, gently foam it and apply it to the face, hair, whole body, etc. to be applied. Note that the order of placing on the palm of the hand does not matter. After taking the surfactant-containing composition in the palm of the hand, a powdery or granular carbonated foaming composition may be added to the surfactant-containing composition. However, from the viewpoint of reducing the scattering of the powdery or granular carbonated foaming composition and more effectively foaming the surfactant-containing composition, it is preferable to first take the powdery or granular carbonated foaming composition in the palm of the hand and then add the surfactant-containing composition. Also, when it is difficult for the surfactant-containing composition to foam, water may be further added as necessary. In that case, the timing of adding water is not particularly limited. For example, after contacting the powdery or granular carbonated foaming composition with water, the surfactant-containing composition may be added. Also, after contacting the surfactant-containing composition with water, the powdery or granular carbonated foaming composition may be added. Further, after contacting the powdery or granular carbonated foaming composition with the surfactant-containing composition, water may be added. From the viewpoint of more effectively foaming the surfactant-containing composition, it is preferable to add the surfactant composition after contacting the powdery or granular carbonated foaming composition with water. However, from the viewpoint of improving the usability, it is preferable to use it without adding water. When the surfactant-containing composition is in a liquid state, the amount of the liquid surfactant-containing composition added to the powdery or granular carbonated foaming composition is such that, from the viewpoint of improving the solubility of the powdery or granular carbonated foaming composition and also improving the foaming property, the mass ratio of the powdery or granular carbonated foaming composition to the added surfactant-containing composition (powdery or granular carbonated foaming composition / surfactant-containing composition) is preferably 1 / 30 or more, more preferably 1 / 25 or more, still more preferably 1 / 20 or more, and preferably 1 / 0.5 or less, more preferably 1 / 1 or less, still more preferably 1 / 2 or less. In addition, the amount of water to be added as necessary is preferably 0.1 g or more and 20 g or less, more preferably 0.5 g or more and 15 g or less, still more preferably 1 g or more and 10 g or less, per 1 g of the powdery or granular carbonated foaming composition, from the viewpoints of solubility and foaming property.

[0058] When the surfactant-containing composition is in a liquid state, from the viewpoint of foam retention, the powdery or granular carbonated foaming composition of the present invention preferably has a time of 5 minutes or less, more preferably 3 minutes or less, still more preferably 2 minutes or less, and even more preferably 1 minute and 30 seconds or less, from the time of contact with the liquid surfactant-containing composition (when water is first brought into contact with the powdery or granular carbonated foaming composition, from the time of contact of the powdery or granular carbonated foaming composition with water) until it is applied to an application target such as hair. The temperature of the water to be added to the powdery or granular carbonated foaming composition as necessary is not particularly limited, but is preferably 15°C or more and 50°C or less, more preferably 15°C or more and 45°C or less, still more preferably 20°C or more and 45°C or less.

[0059] <Hair cosmetic kit> The hair cosmetic kit of the present invention includes a powdery or granular carbonated foaming composition and a surfactant-containing composition. The powdery or granular carbonated foaming composition and the surfactant-containing composition used in the hair cosmetic kit of the present invention are the same as those described above. When using the hair cosmetic kit, the powdery or granular carbonated foaming composition and the surfactant-containing composition are brought into contact with each other to form the surfactant-containing composition into a foamy dosage form for use.

[0060] Hereinafter, regarding the above-described embodiments, the present invention further discloses the following. <1> containing a carbonate and an organic acid, containing 30 mass% or more of particles having a particle size of 100 μm or more, and having a content of particles having a particle size of 100 μm or more and a hardness of 5 gf or more of 0.10% by number or less, a powdery or granular carbonated foaming composition. <2> The powder or granular carbon dioxide foaming composition according to <1>, wherein the particles having a hardness of 5 gf or more among the particles having a particle size of 100 μm or more are 45% by number or less. <3> Furthermore, the powder or granular carbon dioxide foaming composition according to <1> or <2>, which contains a moisture absorbent. <4> The powder or granular carbon dioxide foaming composition according to any one of <1> to <3>, which contains one or more selected from the group consisting of citric acid, succinic acid, tartaric acid, and ascorbic acid. <5> The powder or granular carbon dioxide foaming composition according to any one of <1> to <4>, wherein the carbonate contains one or more selected from the group consisting of sodium carbonate and sodium hydrogen carbonate. <6> The powder or granular carbon dioxide foaming composition according to any one of <3> to <5>, wherein the moisture absorbent is magnesium oxide. <7> The powder or granular carbon dioxide foaming composition according to any one of <1> to <6>, wherein at least a part of the particles having a particle size of 100 μm or more are granulated particles. <8> The powder or granular carbon dioxide foaming composition according to any one of <1> to <7>, wherein 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 in all the particles constituting the powder or granular carbon dioxide foaming composition. <9> The powder or granular carbon dioxide foaming composition according to any one of <1> to <8>, wherein 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 in all the particles constituting the powder or granular carbon dioxide foaming composition. <10> The powder or granular carbon dioxide foaming composition according to any one of <1> to <9>, wherein the content of the fine powder having a particle size of 10 μm or less is 0.001% by mass or more and 3.5% by mass or less in all the particles constituting the powder or granular carbon dioxide foaming composition. <11> The powder or granular carbon dioxide foaming composition according to any one of <7> to <10>, wherein the content of the granulated particles among the particles having a particle size of 100 μm or more exceeds 55% by number. <12> The average hardness of the particles with a particle size of 100 μm or more is 0.3 gf or more and less than 5 gf, and the powder or granular carbon dioxide foaming composition according to any one of <1> to <11>. <13> The particles with a particle size of 100 μm or more are 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, and the powder or granular carbon dioxide foaming composition according to any one of <1> to <12>. <14> Among all the particles constituting the powder or granular carbon dioxide foaming composition, the content of the particles with a hardness of 5 gf or more among the particles with a particle size of 100 μm or more is 0.07% by number or less, and the particles with a hardness of 5 gf or more among the particles with a particle size of 100 μm or more are 40% by number or less, and the powder or granular carbon dioxide foaming composition according to any one of <1> to <13>. <15> The content of the carbonate in the powder or granular carbon dioxide foaming composition is 15% by mass or more and 65% by mass or less, and the powder or granular carbon dioxide foaming composition according to any one of <1> to <14>. <16> The content of the organic acid in the powder or granular carbon dioxide foaming composition is 5% by mass or more and 60% by mass or less, and the powder or granular carbon dioxide foaming composition according to any one of <1> to <15>. <17> The mass ratio of the organic acid to the carbonate [organic acid / carbonate] is 0.05 or more and 10 or less, and the powder or granular carbon dioxide foaming composition according to any one of <1> to <16>. <18> The total amount of the carbonate and the organic acid in the powder or granular carbon dioxide foaming composition is 50 to 90% by mass, and the powder or granular carbon dioxide foaming composition according to any one of <1> to <17>. <19> The content of the moisture absorbent in the powder or granular carbon dioxide foaming composition is 0.01 to 15% by mass, and the powder or granular carbon dioxide foaming composition according to any one of <3> to <18>. <20> Containing particles (A) containing the carbonate and particles (B) containing the organic acid, The powder or granular carbon dioxide foaming composition according to any one of <1> to <19>, wherein the particle (A) does not contain an organic acid and the particle (B) is a particle that does not contain a carbonate. <21> The powder or granular carbon dioxide foaming composition according to any one of <1> to <19>, wherein the particle (A) contains the excipient. <22> The powder or granular carbon dioxide foaming composition according to any one of <1> to <19>, wherein the particle (B) contains the excipient. <23> The powder or granular carbon dioxide foaming composition according to any one of <1> to <19>, wherein both the particle (A) and the particle (B) contain the excipient. <24> A method for producing a powder or granular carbon dioxide foaming composition according to any one of <1> to <23>, comprising a step of granulating at least one of a carbonate and an organic acid. A method for producing a powder or granular carbon dioxide foaming composition, comprising a step of granulating at least one of a carbonate and an organic acid. <25> A method for using a powder or granular carbon dioxide foaming composition according to any one of <1> to <23>, comprising contacting the powder or granular carbon dioxide foaming composition with a surfactant-containing composition to form a foamed dosage form of the surfactant-containing composition. <26> The method for using a powder or granular carbon dioxide foaming composition according to <25>, wherein the surfactant-containing composition is a hair cosmetic. <27> A hair cosmetic kit comprising a powder or granular carbon dioxide foaming composition according to any one of <1> to <23> and a surfactant-containing composition.

Example

[0061] Hereinafter, the present invention will be described by way of examples, but the present invention is not limited to the scope of the examples. The measurements in the present examples were performed by the following methods.

[0062] (1) Method for measuring the content (number ratio) of particles having a particle size of 100 μm or more Using 3 g of the powdery or granular carbon dioxide foaming composition, the measurement was carried out with a Camsizer XT (particle size measuring device, manufactured by RETSCH Co., Ltd.). Among the obtained distributions, the particle size range of 1 to 3000 μm was evenly divided into 100 parts on a logarithmic scale, and the total number of particles of 100 μm or more was calculated by counting the range of intervals including 100 μm or more as 100 μm or more, and the content (number ratio) of particles of 100 μm or more in all particles was calculated.

[0063] (2) Method for measuring the content (number ratio) of particles having a hardness of 5 gf or more among particles of 100 μm or more in particle size The powdery or granular carbon dioxide foaming composition was sieved with a sieve having a mesh opening of 100 μm, and the particles on the sieve were collected with an extremely small spatula. Next, the particles collected with the spatula were scattered on the pressure plate of a micro compression tester (manufactured by Shimadzu Corporation, MCTW500), the hardness of any 20 particles was measured, and the content (number ratio) of particles having a hardness of 5 gf or more among particles of 100 μm or more in particle size was calculated. This operation was repeated 3 times to calculate the average value.

[0064] (3) Method for calculating the content of particles having a particle size of 100 μm or more and a hardness of 5 gf or more The value obtained by multiplying the numerical value obtained by the measurement in (1) above by the numerical value obtained by the measurement in (2) above was used to calculate the content of particles having a hardness of 5 gf or more among particles of 100 μm or more in all particles.

[0065] (4) Method for measuring the content (mass ratio) of particles of 100 μm or more in particle size 3 g of the powdery or granular carbon dioxide foaming composition was sieved with a sieve having a mesh opening of 100 μm, and it was calculated from the mass remaining on the upper part.

[0066] (5) Method for measuring the content of fine powder Using 3 g of the powdery or granular carbon dioxide foaming composition, the measurement was carried out with a Camsizer XT (particle size measuring device, manufactured by RETSCH). Among the obtained distributions, the particle size range of 1 to 3000 μm was evenly divided into 100 parts on a logarithmic scale, and the volume frequency of 10 μm or less was calculated by counting the range of intervals including 10 μm or less as 10 μm or less, and the content (mass ratio) of particles of 10 μm or less in all particles was calculated.

[0067] [Method for Measuring Median Diameter] For the organic acids, carbonates, and their granulated products used as raw materials, 3 g each was used, and the median diameter was measured using a Camsizer XT (particle size measuring device, manufactured by RETSCH Co., Ltd.).

[0068] [Example 1] A powdery or granular carbon dioxide foaming composition was obtained according to the formulation shown in Table 1. 158.6 g of citric acid (citric anhydride 60 manufactured by Iwata Chemical Industry Co., Ltd.), 39.5 g of magnesium oxide (manufactured by Kyowa Chemical Industry Co., Ltd.), 84.7 g of talc (SW-K4 manufactured by Asada Flour Milling Co., Ltd.), and 16.3 g of cationized hydroxyethyl cellulose (Softcat Polymer SL-30 manufactured by The Dow Chemical Company) were charged into a fluidized bed granulator (FD-MP-01E manufactured by Powrex Corporation). While maintaining an air volume of 0.2 m 3 / min and an intake air temperature of 80°C, granulation was carried out while adding 90 g (solid content 0.9 g) of a 1.0% aqueous carboxymethyl cellulose solution (manufactured by Nippon Paper Industries Co., Ltd., Sunrose, hereinafter also referred to as CMC) at a rate of 4 g / min, and a granulated product with a median diameter of 175 μm was obtained. The obtained granulated product and 264.3 g of sodium hydrogen carbonate (hereinafter also referred to as baking soda, manufactured by AGC Inc.) were put into a bag and manually mixed in a transparent vinyl bag until uniform, to prepare a powdery or granular carbon dioxide foaming composition. Using the obtained powdery or granular carbon dioxide foaming composition, each evaluation was carried out according to the method shown below. The results are shown in Table 1. Also, the particle sizes of the citric acid and sodium hydrogen carbonate (baking soda) used as raw materials, and the particle size in the obtained powdery or granular carbon dioxide foaming composition (product) are shown in Table 2, respectively.

[0069] [Examples 2 and 3] A powdery or granular carbon dioxide foaming composition was obtained in the same manner as in Example 1, except that the formulation shown in Table 1 was followed. Using the obtained powdery or granular carbon dioxide foaming composition, each evaluation was conducted according to the method shown below. The results are shown in Table 1. Also, the particle sizes of the citric acid and sodium bicarbonate used as raw materials and the particle sizes in the obtained powdery or granular carbon dioxide foaming composition (product) are shown in Table 2 respectively.

[0070] [Example 4] According to the formulation shown in Table 1, sodium bicarbonate was granulated. 195.3 g of sodium bicarbonate (manufactured by AGC Inc.), 29.2 g of magnesium oxide (manufactured by Kyowa Chemical Industry Co., Ltd.), 62.6 g of talc (SW-K4 manufactured by Asada Flour Milling Co., Ltd.), and 12.0 g of cationized hydroxyethyl cellulose (Softcat Polymer SL-30 manufactured by The Dow Chemical Company) were charged into a fluidized bed granulator (FD-MP-01E manufactured by Powrex Corporation), and granulated under the same conditions as in Example 1 while adding 66 g of 1.0% CMC aqueous solution (solid content 0.7 g) at a rate of 4 g / min to obtain granulated products with a median diameter of 145 μm. The obtained granulated products and 117.2 g of citric acid (citric anhydride 60 manufactured by Iwata Chemical Industry Co., Ltd.) were manually mixed in a transparent vinyl bag until uniform to prepare a powdery or granular carbon dioxide foaming composition. Using the obtained powdery or granular carbon dioxide foaming composition, each evaluation was conducted according to the method shown below. The results are shown in Table 1. Also, the particle sizes of the citric acid and sodium bicarbonate used as raw materials and the particle sizes in the obtained powdery or granular carbon dioxide foaming composition (product) are shown in Table 2 respectively.

[0071] [Example 5] A powdery or granular carbon dioxide 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. Using the obtained powdery or granular carbon dioxide foaming composition, each evaluation was conducted according to the method shown below. The results are shown in Table 1. Also, the particle sizes of the citric acid and sodium bicarbonate used as raw materials and the particle sizes in the obtained powdery or granular carbon dioxide foaming composition (product) are shown in Table 2 respectively.

[0072] [Example 6] 142.9 g of citric acid (citric anhydride 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 (Softcat Polymer SL-30 manufactured by The Dow Chemical Company), and 26.9 g of sodium cocoamphoacetate (JODAPON LACI manufactured by BASF). A carbon dioxide foaming composition was obtained in the same manner as in Example 1 except for using these components. Using the obtained carbon dioxide foaming composition, each evaluation was carried out according to the method shown below. The results are shown in Table 1. Also, the particle sizes of the citric acid and sodium bicarbonate used as raw materials and the particle sizes in the obtained powdery or granular carbon dioxide foaming composition (product) are shown in Table 2, respectively.

[0073] [Comparative Examples 1 to 3] According to the formulation shown in Table 3, a powdery or granular carbon dioxide foaming composition was obtained. In Comparative Examples 1 to 3, without granulation, all the components were put into a bag and manually mixed in a transparent vinyl bag until uniform to obtain a powdery or granular carbon dioxide foaming composition. Using the obtained powdery or granular carbon dioxide foaming composition, each evaluation was carried out according to the method shown below. The results are shown in Table 3. Also, the particle sizes of the citric acid and sodium bicarbonate used as raw materials and the particle sizes in the obtained powdery or granular carbon dioxide foaming composition (product) are shown in Table 4, respectively.

[0074] [Comparative Example 4] According to the formulation shown in Table 3, a powdery or granular carbon dioxide foaming composition was obtained. Without granulation, all the components were put into a bag and manually mixed in a transparent vinyl bag until uniform. 1 g of the obtained mixture was put into a mold with a diameter of Φ4 mm and hand-pressed at 10 MPa to obtain a compression molded product with a diameter of Φ4 mm. The obtained compression molded product was pulverized in a mortar and sieved through a 250 μm sieve, and the fraction that passed through was separated to obtain a powdery or granular carbon dioxide foaming composition with a median diameter of 176 μm.

[0075] [Foaming property (without water addition)] Take 1 g of each powdery or granular carbon dioxide foaming composition in the palm of the hand, add 6 g of a commercially available shampoo liquid (Kao Corporation, Essential Beauty) to the powdery or granular carbon dioxide foaming composition, thoroughly mix the shampoo liquid with the powdery or granular carbon dioxide foaming composition on the palm of the hand, allow it to foam naturally, and then (about 10 seconds after adding the shampoo liquid), mix and whip it with the other finger. Then, while continuing the whipping operation, three professional panels evaluated the foaming property when whipped within 3 minutes after adding the shampoo liquid according to the following criteria and determined it through consultation among the professional panels. 1: Foams up to the full palm in less than 30 seconds 2: Foams up to the full palm in 30 seconds or more and less than 1 minute 3: Foams up to the full palm in 1 minute or more and less than 2 minutes 4: Foams up to the full palm in 2 minutes or more and less than 3 minutes 5: Takes 3 minutes or more to fully foam

[0076] [Foaming property (with water added)] Take 1 g of each powdery or granular carbon dioxide foaming composition in the palm of the hand, add 5 g of water at 42°C to the powdery or granular carbon dioxide foaming composition, thoroughly mix the water with the powdery or granular carbon dioxide foaming composition on the palm of the hand, allow it to foam naturally, and then (about 10 seconds after adding the water), add 6 g of a commercially available shampoo liquid (Kao Corporation, Essential Beauty), thoroughly mix the shampoo liquid with the powdery or granular carbon dioxide foaming composition on the palm of the hand, allow it to foam naturally, and then mix and whip it with the other finger. Then, while continuing the whipping operation, three professional panels evaluated the foaming property when whipped within 3 minutes after adding the water according to the following criteria and determined it through consultation among the professional panels. 1: Foams up to the full palm in less than 30 seconds 2: Foams up to the full palm in 30 seconds or more and less than 1 minute 3: Foams up to the full palm in 1 minute or more and less than 2 minutes 4: Foams up to the full palm in 2 minutes or more and less than 3 minutes 5: Takes 3 minutes or more to foam up to the full palm

[0077] [Storage stability] At 50°C and 50% RH, 3.9 g of each powder or granular carbon dioxide foaming composition was enclosed in an aluminum packaging material measuring 80 mm × 50 mm × 18 mm, and the expansion amount of the aluminum packaging material before and after storage at 50°C for 4 weeks was measured. Specifically, a water tank filled with water at 25°C was placed on a scale and its weight was measured. Next, the aluminum packaging material enclosing the powder or granular carbon dioxide foaming composition was completely submerged in the water tank, and its mass was measured. The difference in mass before and after submerging the aluminum packaging material in water was converted to volume using the density of water as 1.0 g / ml based on Archimedes' principle, and this was taken as the volume of the aluminum packaging material before storage. Then, by performing the same measurement after 4 weeks of storage, the volume of the aluminum packaging material after storage was determined, and the expansion amount of the aluminum packaging material after storage was determined from the difference in volume of the aluminum packaging material before and after storage. A smaller expansion amount indicates better storage stability.

[0078] [Feeling in use (touch without water addition)] 1 g of the powder or granular carbon dioxide foaming composition was taken in the palm, 6 g of a commercially available shampoo liquid (Kao Corporation, Essential Beauty) was added to the powder or granular carbon dioxide foaming composition, and the shampoo liquid was thoroughly mixed with the powder or granular carbon dioxide foaming composition on the palm and allowed to foam naturally. Then, it was whipped by mixing with the other finger. Subsequently, while continuing the whipping operation, three professional panels evaluated the touch when whipped within 3 minutes after adding the shampoo liquid to the powder or granular carbon dioxide foaming composition according to the following criteria, and it was determined by the agreement of the professional panels. 1: No roughness is felt from the beginning. 2: Roughness is felt at first, but it disappears at the initial stage of whipping. 3: Roughness is felt at first, but it disappears during whipping. 4: Roughness is felt, but it disappears after whipping. 5: Roughness is felt and does not disappear after whipping. (The above "initial stage of whipping" means within 1 minute after adding the shampoo liquid to the powder or granular carbon dioxide foaming composition, "during whipping" means more than 1 minute and within 2 minutes, and "after whipping" means more than 2 minutes and within 3 minutes.)

[0079] [Feeling in use (touch with water addition)] Take 1 g of each carbonated foam composition in the palm of the hand, add 5 g of water at 42°C to the carbonated foam composition, thoroughly mix the water into the carbonated foam composition on the palm of the hand, and allow it to foam naturally. After that (about 10 seconds after adding the water), add 6 g of a commercially available shampoo liquid (Kao Corporation, Essential Beauty), thoroughly mix the shampoo liquid into the carbonated foam composition on the palm of the hand, and allow it to foam naturally. Then, mix and whip it with the other finger. Thereafter, while continuing the whipping operation, three professional panels evaluated the feel when whipping within 3 minutes after adding the water according to the following criteria, and it was determined by the agreement of the professional panels. 1: No roughness is felt from the beginning. 2: Roughness is felt at first, but it disappears at the initial stage of whipping. 3: Roughness is felt at first, but it disappears during whipping. 4: Roughness is felt, but it disappears after whipping. 5: Roughness is felt and does not disappear after whipping. (The above "initial stage of whipping" means within 1 minute after adding water to the carbonated foam composition, "during whipping" means more than 1 minute and within 2 minutes, and "after whipping" means more than 2 minutes and within 3 minutes.)

[0080]

Table 1

[0081]

Table 2

[0082]

Table 3

[0083]

Table 4

[0084] *1 In the "granulation state" in Tables 1 to 4, "organic acid granulation" means granulating all components other than carbonate (organic acid, excipient, water-soluble polymer, and humectant). In the case of organic acid granulation, carbonate (sodium bicarbonate) was used as raw material particles without granulation. "Carbonate granulation" means granulating carbonate and all components other than organic acid (excipient, water-soluble polymer, and humectant). In the case of carbonate granulation, organic acid (citric acid) was used as raw material particles without granulation. "Ungranulated" means the state where all powder components are used without granulation. *2 Softcat Polymer SL-30 manufactured by The Dow Chemical Company *3 Sunrose, manufactured by Nippon Paper Industries Co., Ltd. *6 In Tables 1 and 3, "in the whole detergent composition" means "in all particles constituting the powder or granular detergent composition".

[0085] From Tables 1 and 3, it can be seen that the powder or granular carbonated foaming composition of this example is excellent in storage stability and feel. In addition, all shampoos to which the powder or granular carbonated foaming composition of this example was applied had good foaming properties, foam breakage, and foam retention.

Industrial Applicability

[0086] According to the present invention, it is possible to provide a powder or granular carbonated foaming composition having high storage stability, suppressed roughness of touch, and good usability. By combining the carbonated foaming composition with hair cosmetics such as shampoos and conditioning agents, the hair cosmetics can be made into a foamy dosage form.

Claims

1. Contains carbonates and organic acids, The 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. A powder or granular carbonated foaming 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 at least one selected from the group consisting of citric acid, succinic acid, tartaric acid, and ascorbic acid.

5. 2. The powder or granular carbonated foaming composition according to claim 1, wherein the carbonate salt 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, 2. 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 comprising an excipient, 9. The powder 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. The 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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