JP2015113320A - Bathing agent composition - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a bathing agent composition which sufficiently generates fine foams on a bath water surface and can retain the foams satisfactorily and improve storage stability.SOLUTION: There is provided a bathing agent composition which comprises the following components (A) and (B): (A) an organic acid; and (B) a granulated material containing a carbonate (b1), a nonionic surfactant (b2), a polyethylene glycol (b3) having a number average molecular weight of 1500 or more and 20000 or less and a thickener (b4).

Description

  The present invention relates to a bath agent composition.

  Conventionally, a bath preparation containing an organic acid and a carbonate is excellent in that carbon dioxide gas is generated in the bath water, and blood circulation is promoted by such carbon dioxide gas to enhance the warming feeling. It is widely known as a bath preparation. Also, by adding a surfactant to these bath preparations, an attempt to improve comfort as a product in the category of “Bubble Bath”, which generates bubbles on the surface of the bath water with the generation of carbon dioxide gas. It has also been made.

  For example, Patent Document 1 discloses a powder bubble bath composition containing a granulated product containing a foamable surfactant, an organic acid and a water-soluble polymer, and a specific carbonate. The problem is to improve the foam sustainability on the surface of the bath water by making the foam finer and to give a good feeling of use.

  Further, Patent Document 2 contains a specific amount of a surfactant and an oil component while containing carbonate and acid in a specific amount, and is molded into a tablet having a recess or a through hole on the surface. A solid bubble bath composition to be obtained is disclosed, and it is an object to enhance the feeling of bubbles on the surface of the bath and to give a moist feeling to the skin after bathing.

JP 2012-131739 A JP-A-9-12443

  However, the technology related to the conventional bubble bath is highly blended with a surfactant in order to improve foaming and exhibit cleaning performance, and as a result, the skin after bathing tends to be overdried. In order to solve the problem, for example, the composition of Patent Document 1 employs a technique of making the generated bubbles fine, but it has been found that there is a problem in that a sufficient amount of bubbles is generated on the bath water surface. did. Further, the composition of Patent Document 2 employs a method of blending a specific oil component and a surfactant in a specific ratio. However, the foam is rough and there is a problem in terms of stability during storage.

  Therefore, the present invention relates to a bath agent composition capable of sufficiently generating fine bubbles on the surface of the bath water, maintaining the bubbles well, and enhancing the storage stability.

  Therefore, the present inventors used organic acid as it is without granulating it, and when this was mixed with a granulated product containing carbonate, nonionic surfactant, specific polyethylene glycol and thickener, A bath agent composition that is extremely useful for modification, generates a very fine foam in a sufficient amount on the surface of the bath, and can maintain the foam well, and also enhances storage stability. It was found that can be obtained.

That is, the present invention includes the following components (A) and (B):
(A) an organic acid, and (B) a carbonate (b1), a nonionic surfactant (b2), a polyethylene glycol (b3) having a number average molecular weight of 1500 to 20000, and a thickener (b4) It is related with the bath agent composition containing a granule.

  According to the bath agent composition of the present invention, fine bubbles can be sufficiently generated on the surface of the bath water, the bubbles can be held well, and high storage stability can be obtained.

Hereinafter, the present invention will be described in detail.
In the present specification, “bubbles” are generated in the bath water by the component (A) organic acid and the carbonate (b1) in the component (B), and the nonionic surfactant and component (b2) ( It means “foam” brought about on the bath surface by the thickener of b4), and does not mean the foam generated when foamed on the bath surface by the component (b2).

  The bath agent composition of the present invention contains the organic acid of component (A). By containing the component (A) as a particle together with the granulated product of the component (B) described later without granulating the component (A), a large number of components (A) are mixed in the gaps of the component (B). It is possible to generate a sufficient amount of fine bubbles while generating carbon dioxide gas in the bath water in combination with the carbonate (b1) contained in (B), and to impart a good warm feeling. Storage stability can be effectively increased. Examples of such organic acids include succinic acid, fumaric acid, malic acid, adipic acid, tartaric acid, benzoic acid, citric acid, pyrrolidone carboxylic acid, salicylic acid, maleic acid, phthalic acid, glutaric acid, oxalic acid, and the like. These can be used alone or in combination of two or more. Among these, from the viewpoint of ensuring storage stability, one or more selected from succinic acid, fumaric acid, malic acid, adipic acid, tartaric acid, benzoic acid, citric acid, pyrrolidone carboxylic acid, and salicylic acid are preferable. One or more selected from succinic acid, fumaric acid, malic acid, adipic acid, tartaric acid, and citric acid are more preferable, and one or more selected from succinic acid, malic acid, and fumaric acid are further included. preferable.

  The average particle diameter of the component (A) is preferably 100 to 1000 μm, more preferably 120 to 800, from the viewpoint of efficiently mixing in the gaps of the component (B) and ensuring the generation of fine bubbles. More preferably, it is 150-700 micrometers.

  The content of the component (A) is preferably 10% by mass or more, more preferably 20%, in the bath agent composition of the present invention, from the viewpoint of securing a carbon dioxide gas generation amount and exhibiting a good warm bath effect. It is at least mass%, more preferably at least 30 mass%, preferably at most 80 mass%, more preferably at most 70 mass%, still more preferably at most 60 mass%. Further, the content of the component (A) is preferably 10 to 80% by mass, more preferably 20 to 70% by mass, and further preferably 30 to 60% by mass in the bath agent composition of the present invention. It is.

  The bath agent composition of the present invention contains a granulated product of component (B), such component (B) comprising carbonate (b1), nonionic surfactant (b2), and a number average molecular weight of 1500 to 20000. The following polyethylene glycol (b3) and thickener (b4) are included. That is, by previously granulating these components (b1) to (b4) to obtain a granulated product of component (B), and mixing this with the organic acid of component (A), the bath agent composition of the present invention. Get things.

  Examples of the carbonate of component (b1) include one or more selected from sodium carbonate, sodium hydrogen carbonate, magnesium carbonate, calcium carbonate, potassium carbonate, and the like. Among these, from the viewpoint of imparting better foamability, one or more selected from sodium carbonate and sodium bicarbonate are preferable, and sodium carbonate and sodium bicarbonate are used in combination from the viewpoint of storage stability. More preferred. Moreover, when using sodium carbonate and sodium hydrogen carbonate together, these mass ratios (sodium carbonate / sodium hydrogen carbonate) in the bath agent composition of the present invention are preferably 0.2 to 50, and 0.3 It is more preferable to set to -30, and it is still more preferable to set to 0.4-3.

  The content of the component (b1) is preferably 10% by mass or more in the bath agent composition of the present invention from the viewpoint of ensuring carbon dioxide gas generation amount together with the component (A) and exhibiting a good warm bath effect. More preferably 15% by mass or more, further preferably 20% by mass or more, preferably 70% by mass or less, more preferably 60% by mass or less, and further preferably 50% by mass or less. . Further, the content of the component (b1) is preferably 10 to 70% by mass, more preferably 15 to 60% by mass, and further preferably 20 to 50% by mass in the bath agent composition of the present invention. It is.

  The mass ratio ((A) / (b1)) of the component (A) to the component (b1) in the bath agent composition of the present invention is from the viewpoint of securing an appropriate amount of carbon dioxide gas generation and maintaining a warm feeling. , Preferably 0.3 or more, more preferably 0.5 or more, still more preferably 0.8 or more, preferably 8 or less, more preferably 4 or less, still more preferably 3 or less. Furthermore, the mass ratio ((A) / (b1)) of the component (A) and the component (b1) in the bath agent composition of the present invention is preferably 0.3 to 8, more preferably 0.5. It is -4, More preferably, it is 0.8-3.

  The granulated product of component (B) contains a nonionic surfactant (b2). Specific examples of the component (b2) include polyethylene glycol fatty acid ester, polyoxyethylene alkyl ether, polyoxyethylene hydrogenated castor oil, polyoxyethylene sorbitan fatty acid ester, polyoxyethylene sorbitol fatty acid ester, polyoxyethylene glycerin. Fatty acid ester, polyoxyethylene fatty acid ester, glycerin fatty acid ester, sorbitan fatty acid ester, polyglycerin fatty acid ester, sucrose fatty acid ester, propylene glycol fatty acid ester, polyoxyethylene alkenyl ether, polyoxyethylene polyoxypropylene glycol, polyoxyethylene poly Oxypropylene alkyl ether, polyoxyethylene polyoxypropylene alkenyl ether, and poly One or more selected from carboxy polyoxypropylene alkyl ether.

  In particular, as the component (b2), the foam generated by the component (A) and the component (b1) in the bath water is made fine while the foam is present in a sufficient amount on the surface of the bath water. From the viewpoint of improving adhesion (stickiness) and providing a smooth and smooth skin feel during bathing, it is preferably a nonionic surfactant having an HLB of 11 or more as the whole component (b2). HLB is a value determined by the Griffin equation. When one kind of nonionic surfactant is used as component (b2), it means the value of HLB alone, and two or more kinds of nonionic surfactants. When used in combination, it means the value of HLB in the whole of the plurality of nonionic surfactants obtained based on the Griffin equation and the respective contents. The HLB of the component (b2) as a whole component is preferably 11 or more, more preferably from the viewpoint of realizing fine bubbles and from the viewpoint of improving the adhesion of the foam to the skin and providing a good skin feel. Is 12 or more, more preferably 13 or more. The HLB of the component (b2) as a whole component is preferably 20 or less, more preferably 19.5 or less, from the viewpoint of realizing good skin feel by suppressing the skin roughness after bathing, More preferably, it is 18 or less, More preferably, it is 16.5 or less.

  Specific examples of the component (b2) that satisfies the above HLB include, for example, polyethylene glycol fatty acid ester, polyoxyethylene alkyl ether, polyoxyethylene hydrogenated castor oil, polyoxyethylene sorbitan fatty acid ester, polyoxyethylene sorbitol fatty acid ester, Examples thereof include one or more selected from polyoxyethylene glycerin fatty acid ester, polyoxyethylene fatty acid ester, glycerin fatty acid ester, sorbitan fatty acid ester, polyglycerin fatty acid ester, and sucrose fatty acid ester. Of these, nonionic surfactants having an EO chain are preferred, among which polyoxyethylene sorbitan fatty acid ester, polyoxyethylene sorbitol fatty acid ester, polyoxyethylene fatty acid ester, polyoxyethylene alkyl ether, and polyoxyethylene cured One or more selected from castor oil are preferred.

  When a nonionic surfactant having an EO chain is used, the number of moles of ethylene oxide added is preferably 4 to 250, more preferably 20 to 160, and still more preferably 20 to 80. Moreover, carbon number of the fatty acid part and alkyl part of a nonionic surfactant becomes like this. Preferably it is 8-24, More preferably, it is 12-22.

  The content of the component (b2) is preferably 0.5 in the bath preparation composition of the present invention from the viewpoint of maintaining fine bubbles on the surface of the bath for a certain period of time and enhancing the adhesion of the foam to the skin. It is at least 1% by mass, more preferably at least 1% by mass, even more preferably at least 1.5% by mass, and even more preferably at least 2% by mass. The content of the component (b2) is the bath agent composition of the present invention from the viewpoint of keeping fine bubbles on the surface of the bath for a certain period of time, and suppressing the roughness of the skin after bathing and realizing moist skin. The content is preferably 10% by mass or less, more preferably 8% by mass or less, and still more preferably 6% by mass or less. Further, the content of the component (C) is preferably 0.5 to 10% by mass, more preferably 1 to 10% by mass, and still more preferably 1.5% in the bath agent composition of the present invention. It is -8 mass%, More preferably, it is 2-6 mass%.

  The granulated product of component (B) contains polyethylene glycol (b3) having a number average molecular weight of 1500 or more and 20000 or less by a GPC method using polystyrene as a standard. By containing polyethylene glycol (b3) having such a specific number average molecular weight in component (B), good shape retention can be ensured while making the foam on the bath surface finer, so that storage stability Can increase the sex. The number average molecular weight of the component (b3) is preferably 3000 to 15000, more preferably 4000 to 10000, and still more preferably 5000 to 9500, from the viewpoint of enhancing storage stability.

  The content of the component (b3) is preferably 3% by mass or more, more preferably 4% by mass in the bath agent composition of the present invention, from the viewpoint of enhancing the storage stability while ensuring the generation of fine bubbles. % Or more, more preferably 5% by mass or more, preferably 20% by mass or less, more preferably 17% by mass or less, and further preferably 15% by mass or less. The content of the component (b3) is preferably 3 to 20% by mass, more preferably 4 to 17% by mass, and further preferably 5 to 15% by mass in the bath agent composition of the present invention. It is.

  The mass ratio ((b3) / (b1)) between the component (b1) and the component (b3) is preferably 0.05 or more, more preferably 0.07 or more, from the viewpoint of realizing generation of fine bubbles. More preferably, it is 0.1 or more. The mass ratio of the component (b1) to the component (b3) ((b3) / (b1)) is preferably 0.3 or less, more preferably 0.28 or less, from the viewpoint of enhancing storage stability. More preferably, it is 0.27 or less. The mass ratio ((b3) / (b1)) of the component (b1) to the component (b3) is preferably 0.05 or more and 0.3 or less, more preferably 0.07 to 0.28, Preferably it is 0.1-0.27.

  The granulated product of component (B) contains a thickener (b4). This component (b4) is a component other than the component (b3), and by containing this in the component (B), the adhesion to the skin (coherence) is enhanced while realizing fine bubbles, and the skin during bathing In addition to providing a smooth feeling to the skin, it is possible to improve the skin feel after bathing in combination with other components, and also contribute to enhancing the storage stability. Specific examples of the component (b4) include cellulose derivatives, polysaccharides modified with alkyl glyceryl ether and sulfoalkyl, alkyl acid alkyl methacrylate copolymers, guar gum, hydroxyethyl guar gum, methyl guar gum, and ethyl guar gum. , Carrageenan, highly polymerized polyethylene glycol having a number average molecular weight exceeding 20,000, and one or more selected from starch and the like. Of these, those having a sugar structure such as a cellulose derivative are preferred from the viewpoint of improving foamability and improving skin feel. Such a cellulose derivative is a compound in which at least a part of the hydroxyl group of cellulose is substituted, and also includes these salts. As a cellulose derivative, 1 type, or 2 or more types chosen from cellulose ether, cellulose ester, these alkali metal salts, such as sodium and potassium, ammonium salt, etc. are mentioned.

  Specific examples of the cellulose ether include one or two selected from salts such as carboxymethylcellulose, carboxyethylcellulose, carboxymethylethylcellulose, hydroxymethylcellulose, hydroxyethylcellulose, hydroxypropylcellulose, benzylcellulose, and sodium salts thereof. More than species. Specific examples of the cellulose ester include one or more selected from cellulose nitrate, cellulose sulfate, cellulose acetate, cellulose propionate, cellulose butyrate, and other higher fatty acid celluloses. Among these, cellulose ether is preferable, hydroxyethyl cellulose and carboxymethyl cellulose are more preferable, and hydroxyethyl cellulose is more preferable from the viewpoint of improving adhesion to the skin while realizing fine bubbles.

Furthermore, the degree of etherification of cellulose ether (degree of substitution per glucose unit) is preferably 0.1 to 2.8, more preferably from the viewpoint of enhancing the adhesion to the skin while realizing fine bubbles. It is 0.6-1.6. In addition, in the case of sodium carboxymethylcellulose, for example, the degree of etherification is a value obtained according to the CMC industry association analysis method (ashing method). Specifically, 1 g of carboxymethylcellulose sodium is precisely weighed, put into a magnetic crucible and incinerated at 600 ° C., and sodium oxide produced by ashing is titrated with N / 10 sulfuric acid using phenolphthalein as an indicator. The titration amount per gram YmL can be calculated by putting it in the following formula, and the obtained degree of etherification can be shown.
Degree of etherification = (162 × Y) / (10,000-80 × Y)

  The number average molecular weight of the cellulose derivative is preferably a GPC method using polyethylene oxide as a standard from the viewpoint of realizing fine and creamy foam while ensuring solubility or dispersibility in bath water in combination with other components. It is 5,000 to 5,000,000, more preferably 100,000 to 2,000,000.

  The content of the component (b4) is from the viewpoint of sufficiently generating fine bubbles to ensure good foaming, from the viewpoint of maintaining the fine bubbles on the surface of the bath for a certain period of time, and from the viewpoint of enhancing storage stability. In the bath composition, the amount is preferably 0.05% by mass or more, more preferably 0.25% by mass or more, and further preferably 0.5% by mass or more. The content of the component (b4) is in addition to the viewpoint of generating fine bubbles to ensure good foaming and the viewpoint of improving the foam feel on the skin by improving the adhesion of the foam to the skin. From the viewpoint of ensuring good solubility or dispersibility in the bath agent composition of the present invention, it is preferably 20% by mass or less, more preferably 5% by mass or less, and further preferably 3% by mass. It is as follows. Further, the content of the component (b4) is preferably 0.05 to 20% by mass, more preferably 0.25 to 5% by mass, and further preferably 0 in the bath agent composition of the present invention. 0.5-3 mass%.

  The mass ratio of the component (b2) to the component (b4) ((b2) / (b4)) is based on the viewpoint of enhancing the foam feel on the skin, maintaining the fine foam on the surface of the bath for a certain period of time, and after bathing From the viewpoint of securing a good skin feel, it is preferably 200 or less, more preferably 40 or less, and even more preferably 15 or less. The mass ratio of the component (b2) to the component (b4) ((b2) / (b4)) is preferably from the viewpoint of increasing the solubility or dispersibility in bath water and realizing fine and creamy foam. It is 3 or more, more preferably 1 or more, and still more preferably 2 or more. Moreover, the mass ratio ((b2) / (b4)) of the component (b2) and the component (b4) is preferably 0.3 to 200, more preferably 1 to 40, and further preferably 2 to 15. It is.

The granulated product of component (B) may further contain an oil agent as component (b5). By including such a component (b5) in the component (B), in combination with the component (b2), it improves the adhesion (cohesion) of the foam to the skin while realizing fine bubbles, and the smooth feeling of the skin during bathing In addition, it is possible to realize a moisturized skin feel by suppressing the skin roughness after bathing, and to increase the persistence of foam. Specific examples of the component (b5) include cetyl octanoate, cetyl isooctanoate, myristyl lactate, cetyl lactate, isopropyl myristate, myristyl myristate, isocetyl myristate, octyldodecyl myristate, isopropyl palmitate, Fatty acid esters such as isostearyl palmitate, isopropyl adipate, butyl stearate, isocetyl stearate, isostearyl isostearate, isotridecyl isononanoate, decyl oleate, cholesterol isostearate;
Fatty acid triglycerides such as tri (caprylic acid / capric acid) glycerin and glyceryl tricaprylate;
Soybean oil, nutca oil, jojoba oil, avocado oil, almond oil, olive oil, cacao butter, sesame oil, persic oil, castor oil, coconut oil, mink oil, beef tallow, pork fat and other natural fats and oils, and hydrogenation of these natural fats and oils Hardened oils obtained and glycerides such as myristic acid glyceride and 2-ethylhexanoic acid glyceride;
Hydrocarbon oils such as liquid paraffin, petrolatum, paraffin, microcrystalline wax, ceresin, squalane, squalene, dioctylcyclohexane, bristan;
Higher fatty acids such as lauric acid, myristic acid, palmitic acid, stearic acid, behenic acid, oleic acid, linoleic acid, linolenic acid, lanolinic acid, isostearic acid;
Higher alcohols such as lauryl alcohol, cetyl alcohol, stearyl alcohol, oleyl alcohol, cholesterol, 2-hexyldecanol;
Peppermint oil, jasmine oil, pepper brain oil, cypress oil, spruce oil, ryu oil, turpentine oil, cinnamon oil, bergamot oil, mandarin oil, ginger oil, pine oil, lavender oil, bay oil, clove oil, hiba oil, Rose oil, eucalyptus oil, lemon oil, thyme oil, peppermint oil, rose oil, sage oil, menthol, cineole, eugenol, citral, citronellal, borneol, linalool, gellerall, camphor, thymol, spirantol, pinene, limonene, terpene Essential oils such as compounds;
1 type, or 2 or more types chosen from silicone oil etc. are mentioned.

  Component (b5), in combination with component (b2), achieves fine foam, enhances the adhesion of foam to the skin, and brings about a good skin feel while suppressing the roughness of the skin after bathing, One or more selected from isopropyl myristate, myristyl myristate, isocetyl myristate, octyldodecyl myristate, isopropyl palmitate and isostearyl palmitate are preferred.

  The content of the component (b5) is the bath preparation of the present invention from the viewpoint that the skin does not become bulky after bathing and moisturizes the skin, and that the foam has improved adhesion to the skin and realizes a good skin feel. In a composition, Preferably it is 0.1 mass% or more, More preferably, it is 0.2 mass% or more, More preferably, it is 0.3 mass% or more. The content of the component (b5) is preferably 5% by mass or less in the bath agent composition of the present invention from the viewpoint of securing good solubility and dispersibility in bath water, and more preferably 2. It is 5 mass% or less, More preferably, it is 1 mass% or less. Further, the content of the component (E) is preferably 0.1% by mass or more and 5% by mass or less, more preferably 0.2 to 2.5% by mass in the bath agent composition of the present invention. More preferably, it is 0.3-1 mass%.

  The mass ratio of component (b2) to component (b5) ((b2) / (b5)) increases the adhesion (cohesion) of the foam to the skin, and realizes a good foam feel such as a smooth feeling on the skin. From the viewpoint of possible, it is preferably 1 or more, more preferably 2 or more, and further preferably 4 or more. The mass ratio of the component (b2) to the component (b5) ((b2) / (b5)) is preferably 40 or less from the viewpoint of ensuring good foaming and promoting the refinement of the foam. Preferably it is 20 or less, More preferably, it is 15 or less. Moreover, the mass ratio ((b2) / (b5)) of the component (b2) and the component (b5) is preferably 1 to 40, more preferably 2 to 20, and further preferably 4 to 15. .

  In the granulated product of component (B), in addition to the above components, excipients such as calcium silicate and glucose; sodium sulfate, magnesium sulfate, sodium chloride, potassium chloride, magnesium oxide, sodium polyphosphate, phosphoric acid Disintegration aids that are inorganic salts other than the component (b1) such as sodium; medicinal components such as crude drugs; pigments; fragrances and the like can be included.

  The content of the granulated product of component (B) is preferably 20% by mass or more in the bath agent composition of the present invention, from the viewpoint of enhancing the sustainability of the foam while promoting the refinement of foam. Preferably it is 30 mass% or more, More preferably, it is 35 mass% or more. The content of the granulated product of the component (B) is preferably 80% by mass or less in the bath preparation composition of the present invention from the viewpoint of securing a good skin feel and ensuring high storage stability. Yes, more preferably 70% by mass or less, still more preferably 60% by mass or less. The content of the granulated product of component (B) is preferably 20 to 80% by mass, more preferably 30 to 70% by mass, and further preferably 35 to 60% in the bath agent composition of the present invention. % By mass.

  The average particle diameter of the granulated product of component (B) is preferably 100 to 2000 μm from the viewpoint of ensuring good disintegration and solubility in bath water, and ensuring the generation of fine bubbles, More preferably, it is 200-2000, More preferably, it is 300-2000 micrometers.

  In the bath agent composition of the present invention, as other components other than the above components, components usually used in bath agents may be appropriately contained. Examples of such components include surfactants other than component (b2) of anionic surfactants and amphoteric surfactants; potassium chloride, sodium chloride, sodium sulfate, magnesium sulfate, potassium nitrate, sodium nitrate, sodium polyphosphate, chloride Inorganic salts other than the above component (b1) such as ammonium, iron sulfate, sodium phosphate and sodium thiosulfate; excipients such as calcium silicate and glucose; ethanol, stearyl alcohol, isopropyl alcohol, cetyl alcohol, hexadecyl alcohol Alcohol, etc .; medicinal components such as herbal medicines; pigments; fragrances and the like. In addition, content of surfactant other than a component (b2) is 5 mass% or less in the bath agent composition of this invention from a viewpoint of the adhesiveness to the skin of a foam, and the favorable foam feel on skin. It is preferably 1% by mass or less, more preferably 0.1% by mass or less.

  The bath agent composition of the present invention is prepared by appropriately mixing the respective components used in the granulation product of normal granulation means, that is, the component (B), and then granulating with an extrusion granulator or a tumbling granulator. The granulated product of the component (B) can be produced in advance, and further, it can be produced by mixing the granular component (A) and the other components as necessary.

  In this invention, a granular component (A) and the component (B) which is a granulated material exist in an independent particle state, respectively. Here, “existing in an independent particle state” means that the component (A) and the component (B) in separate and independent particle states exist in a mixed state, and for the bath of the present invention. As the whole agent composition, the particulate form is generally called a powder form or a granular form.

The bath agent composition of the present invention is appropriately packaged and stored in a bag-shaped packaging material. In this case, the water vapor permeability of the material of the bag-like packaging material used in the present invention is 0.6 g / m ² · day or less, preferably 0.3 g / m ² It is most preferable that it is not more than day and does not substantially transmit water vapor. Examples of the material of the bag-like packaging material exhibiting such water vapor permeability include a laminated film made of aluminum having a thickness of 5 to 10 μm, and have transparency such as a PET (polyethylene terephthalate) film subjected to glass vapor deposition treatment. Is also mentioned as a preferable material for the bag-shaped packaging material. Since the bath agent composition of the present invention has good storage stability, it is possible to effectively prevent the bag-like packaging material from being swollen even while being stored in a state packaged in such a bag-like packaging material. it can.

In relation to the embodiment described above, the present invention further discloses the following bath agent composition.
[1] The following components (A) and (B):
(A) an organic acid, and (B) a carbonate (b1), a nonionic surfactant (b2), a polyethylene glycol (b3) having a number average molecular weight of 1500 to 20000, and a thickener (b4) The bath agent composition containing a granule.
[2] Component (A) is preferably one or more selected from succinic acid, fumaric acid, malic acid, adipic acid, tartaric acid, and citric acid, more preferably succinic acid, malic acid, and The bath agent composition according to the above [1], which is one or more selected from fumaric acid.
[3] The content of component (A) is preferably 10% by mass or more, more preferably 20% by mass or more, still more preferably 30% by mass or more, and preferably 80% by mass or less. More preferably, it is 70 mass% or less, More preferably, it is 60 mass% or less, The bath agent composition of said [1] or [2].

[4] The content of the component (b1) in the bath agent composition is preferably 10% by mass or more, more preferably 15% by mass or more, further preferably 20% by mass or more, preferably It is 70 mass% or less, More preferably, it is 60 mass% or less, More preferably, it is 50 mass% or less, The said bath composition of any one of said [1]-[3].
[5] The mass ratio ((A) / (b1)) between the component (A) and the component (b1) is preferably 0.3 or more, more preferably 0.5 or more, and still more preferably 0.8. The bath composition according to any one of the above [1] to [4], which is 8 or more, preferably 8 or less, more preferably 4 or less, and further preferably 3 or less.
[6] The HLB of the component (b2) as a whole component is preferably 11 or more, more preferably 12 or more, still more preferably 13 or more, preferably 20 or less, more preferably 19 The bath agent composition according to any one of [1] to [5], which is 0.5 or less, more preferably 18 or less, and further preferably 16.5 or less.
[7] The content of the component (b2) is preferably 0.5% by mass or more, more preferably 1% by mass or more, and further preferably 1.5% by mass or more in the bath agent composition. And more preferably 2% by mass or more, preferably 10% by mass or less, more preferably 8% by mass or less, and further preferably 6% by mass or less, any of the above [1] to [6] Or 1 bath preparation composition.

[8] The number average molecular weight of the component (b3) is preferably 3000 to 15000, more preferably 4000 to 10000, and further preferably 5000 to 9500, any one of [1] to [7] above. Bath agent composition.
[9] The content of component (b3) is preferably 3% by mass or more, more preferably 4% by mass or more, still more preferably 5% by mass or more, and preferably 20% by mass or less. More preferably, it is 17 mass% or less, More preferably, it is 15 mass% or less, The bath agent composition in any one of said [1]-[8].
[10] The mass ratio ((b3) / (b1)) between the component (b1) and the component (b3) is preferably 0.05 or more, more preferably 0.07 or more, and still more preferably 0.00. 1 or more, Preferably it is 0.3 or less, More preferably, it is 0.28 or less, More preferably, it is 0.27 or less, The bath agent composition in any one of said [1]-[9].

[11] Component (b4) preferably has a sugar structure, more preferably a cellulose derivative, and still more preferably selected from cellulose ethers, cellulose esters, and alkali metal salts or ammonium salts thereof. The bath agent composition according to any one of the above [1] to [10], which is a seed or two or more.
[12] The content of the component (b4) is preferably 0.05% by mass or more, more preferably 0.25% by mass or more, and further preferably 0.5% by mass in the bath agent composition. It is above, Preferably it is 20 mass% or less, More preferably, it is 5 mass% or less, More preferably, it is 3 mass% or less Any one of said [1]-[11] bath agent composition.
[13] The mass ratio ((b2) / (b4)) between the component (b2) and the component (b4) is preferably 200 or less, more preferably 40 or less, still more preferably 15 or less, Is a bath agent composition according to any one of the above [1] to [12], which is 0.3 or more, more preferably 1 or more, and still more preferably 2 or more.
[14] The granulated product of component (B) is preferably the bath agent composition according to any one of the above [1] to [13], which contains the oil agent of component (b5).
[15] The content of the component (b5) is preferably 0.1% by mass or more, more preferably 0.2% by mass or more, and further preferably 0.3% by mass in the bath agent composition. It is above, Preferably it is 5 mass% or less, More preferably, it is 2.5 mass% or less, More preferably, it is 1 mass% or less Any one of said [1]-[14] bath agent composition .
[16] The mass ratio ((b2) / (b5)) between the component (b2) and the component (b5) is preferably 1 or more, more preferably 2 or more, further preferably 4 or more, Is a bath agent composition according to any one of [1] to [15] above, which is 40 or less, more preferably 20 or less, and even more preferably 15 or less.

  [17] The content of the granulated product of component (B) is preferably 20% by mass or more, more preferably 30% by mass or more, and further preferably 35% by mass in the bath agent composition of the present invention. %, Preferably 80% by mass or less, more preferably 70% by mass or less, and still more preferably 60% by mass or less, in any one of [1] to [16] above.

  Hereinafter, the present invention will be specifically described based on examples. In addition, unless otherwise indicated in a table | surface, content of each component shows the mass%.

[Examples 1 to 16]
According to the formulation shown in Table 1, each bath preparation was obtained.
In addition, about the thing of a form, the component (b1) and the component (b4) were mixed first, and it heated up to 45 degreeC. A mixture of component (b2), component (b3), and component (b5) prepared in advance was added to this at 65 ° C. and mixed. Next, extrusion granulation was performed using a dome gran (Dalton, φ0.8 mm screen, rotation speed: 40 rpm), and after cooling, the mixture was sized with a cutter mill (φ3.0 mm) and the granulated product of component (B) (Adjusted to an average particle size of 800 μm). The obtained granulated product, component (A), and other components were mixed to obtain a bath preparation.
Each evaluation was performed according to the method shown below using the obtained bath agent. The results are shown in Table 1.

[Comparative Examples 1-3]
According to the formulation shown in Table 2, each bath preparation was obtained.
In Comparative Example 1, a bath preparation was obtained only by mixing all the components without granulation. Comparative Example 2 granulated all the components in the same manner as in Example 1 except that the component (A) was used together with the component (b2), the component (b3), and the component (b5) to make a mixture thereof. A bath preparation was obtained. Comparative Example 3 was the same as Example 1 except that component (A) was used instead of component (b1), component (b1) was used instead of component (A), and component (b4) was not used. Thus, a bath preparation was obtained.
Each evaluation was performed according to the method shown below using the obtained bath agent. The results are shown in Table 2.

《Bubbling on the water surface》
50 g of each bathing agent was added to 150 L of bathing water (40 ° C.), and the state of the bathing water surface was observed visually after 5 minutes, and foaming was evaluated according to the following criteria.
AA: Bubbles cover 95% or more of the bath water surface.
A: Foam covers 80% or more and less than 95% of the bath water surface.
B: The foam covers 60% or more and less than 80% of the bath water surface.
C: Foam covers less than 60% of the bath water surface.

<Storage stability>
After putting 50 g of each bathing agent in an aluminum pillow (made by Toppan Printing, 6 cm × 18 cm) and sealing it, it was placed in an incubator set at 50 ° C., and the appearance of the aluminum pillow when 10 days had passed after placement was visually observed. And the presence or absence of swelling was evaluated.

* 1: Rheodor 440V (Kao Corporation, 40E.O./HLB;11.8)
* 2: Rheodor TW-S120V (Kao Corporation, 20E.O./HLB; 14.9)
* 3: Rheodor 460V (Kao Corporation, 60E.O./HLB;13.8)
* 4: Emanon CH-80 (Kao Corporation, 80E.O./HLB; 15.0)
* 5: Emulgen 2025G (Kao Corporation, HLB; 15.7)
* 6: Emulgen 123P (Kao Corporation, HLB; 16.9)
* 7: Rheodor SP-S10V (Kao Corporation, HLB; 4.7)
* 8: K-PEG 6000LA (Kao Corporation), number average molecular weight 8600
* 9: HEC Daicel SE850 (Daicel Chemical Industry Co., Ltd., etherification degree 1.0-1.3, number average molecular weight 14.48 million)
* 10: HEC Daicel SE400 (Daicel Chemical Industries, etherification degree: 1.0 to 1.3, number average molecular weight: 250,000)
* 11: Sunrose F35SH (Nippon Paper Chemical Co., Ltd., degree of etherification 1.0 to 1.15, number average molecular weight 150,000)
* 12: Soagina VX23 (MRC polysaccharides), number average molecular weight 500,000 * 13: Alcox E100 (Meisei Chemical Co., Ltd.), number average molecular weight 2.5 million * 14: Exepal IPP (Kao Corporation)
* 15: EXCEPARL OD-M (Kao Corporation)

  * 1-15: Same as Table 1

  According to the result of Tables 1-2, Examples 1-15 which contain with a granulated material of a component (B) with a particle | grain remain without granulating a component (A) are compared with Comparative Examples 1-3. Thus, it can be seen that foaming on the surface of the bath water is good and has high storage stability.

Claims (7)

The following components (A) and (B):
(A) an organic acid, and (B) a carbonate (b1), a nonionic surfactant (b2), a polyethylene glycol (b3) having a number average molecular weight of 1500 to 20000, and a thickener (b4) The bath agent composition containing a granule.   The bath agent composition according to claim 1, wherein the component (B) further contains an oil agent (b5).   The bath agent composition according to claim 1 or 2, wherein the content of the component (b2) in the bath agent composition is 0.5% by mass or more and 10% by mass or less.   Component (b4) is a cellulose derivative, The bath agent composition of any one of Claims 1-3.   The bath agent composition according to any one of claims 1 to 4, wherein the content of the component (b5) in the bath agent composition is 0.2% by mass or more and 5% by mass or less.   The bath composition according to any one of claims 1 to 5, wherein a mass ratio of the component (b2) to the component (b4) ((b2) / (b4)) is 0.3 or more and 200 or less.   The bath agent composition according to any one of claims 1 to 6, wherein the mass ratio ((b2) / (b5)) of the component (b2) to the component (b5) is 1 or more and 40 or less.