WO2021085059A1

WO2021085059A1 - Antiperspirant composition

Info

Publication number: WO2021085059A1
Application number: PCT/JP2020/037919
Authority: WO
Inventors: 愛岡; 智生佐野; 百合子尾本
Original assignee: ライオン株式会社
Priority date: 2019-10-31
Filing date: 2020-10-06
Publication date: 2021-05-06
Also published as: JPWO2021085059A1

Abstract

Provided is an antiperspirant composition containing: at least one antiperspirant component (A) selected from aluminum halides, aluminum halide hydrides, and complexes of aluminum halide hydrides; and a water-soluble inorganic salt (B) other than aluminum salts, the water-soluble inorganic salt having, as a counter ion, at least one selected from alkali metal ions, barium ion, and magnesium ion. The mass ratio (A)/(B) of the component (A) content to the component (B) content is 5-20.

Description

Antiperspirant composition

The present invention relates to an antiperspirant composition.

Conventionally, an antiperspirant composition containing an antiperspirant component having an antiperspirant effect such as chlorohydroxyaluminum has been widely used (see, for example, Patent Document 1).
Chlorhydroxyaluminum exerts an antiperspirant effect by blocking the sweat glands with a plug, but when the amount of perspiration increases due to long-term sweating, there is a problem that the plug is eluted by sweat and the antiperspirant effect is lowered. However, sufficient studies have not been conducted to prevent the elution of the plug due to sweat.

Further, as an antiperspirant composition containing an antiperspirant component such as chlorohydroxyaluminum, an antiperspirant composition having a good feeling of tightness on the skin has been proposed (see Patent Document 2). However, the proposed antiperspirant composition has a problem that the antiperspirant effect is not sufficiently satisfactory.

In addition, a deodorant coating agent containing chlorohydroxyaluminum and having a high deodorizing effect has also been proposed (see Patent Document 3). However, the deodorant coating agent of this proposal has a problem that not only the antiperspirant effect is not sufficiently satisfactory, but also the appearance of the agent is poor due to the poor solubility of the compounding components.

Therefore, an antiperspirant composition having an excellent antiperspirant effect and lack of tension on the skin and having a good appearance of the agent has not yet been provided, and its rapid development is strongly desired at present. is there.

Japanese Unexamined Patent Publication No. 2003-09596 Japanese Unexamined Patent Publication No. 2017-048140 Japanese Unexamined Patent Publication No. 5-112440

An object of the present invention is to solve the above-mentioned problems in the past and to achieve the following objects. That is, an object of the present invention is to provide an antiperspirant composition which is excellent in antiperspirant effect and lack of tension of the skin, and further has a good appearance of the agent.

As a result of diligent studies to achieve the above object, the present inventors have at least one selected from (A) a complex of aluminum halide, aluminum halide hydrate, and aluminum halide hydrate. The component (A) contains an antiperspirant component and (B) a water-soluble inorganic salt other than an aluminum salt having at least one selected from alkali metal ion, barium ion, and magnesium ion as a pair ion. By setting the mass ratio (A) / (B) of the content to the content of the component (B) to 5 to 20, even if the amount of sweating increases due to long-term sweating, the above-mentioned control It was found that the plug due to the sweat component does not elute and has an excellent antiperspirant effect, the skin does not feel taut, and the appearance of the agent is improved.

The present invention is based on the above findings by the present inventors, and the antiperspirant composition as a means for solving the above-mentioned problems is (A) aluminum halide, aluminum halide hydrate, and halogen. Water-soluble other than aluminum salt having at least one antiperspirant component selected from the complex of aluminum hydrate and (B) at least one selected from alkali metal ion, barium ion, and magnesium ion as pair ions. It contains a sex inorganic salt, and the mass ratio (A) / (B) of the content of the component (A) to the content of the component (B) is 5 to 20.

According to the present invention, an antiperspirant composition capable of solving the above-mentioned problems in the past, achieving the above-mentioned object, having an excellent antiperspirant effect and lack of tension on the skin, and having a good appearance of the agent. Can be provided.

(Antiperspirant composition)
The antiperspirant composition of the present invention comprises (A) at least one antiperspirant component selected from a complex of aluminum halide, aluminum halide hydrate, and aluminum halide hydrate, and (B) a pair. It contains at least a water-soluble inorganic salt other than an aluminum salt having at least one selected from alkali metal ions, barium ions, and magnesium ions as ions, and further contains (C) an alkyl group having 1 to 4 carbon atoms. A copolymer or a salt thereof containing at least one selected from monoalkyl maleate, alkylacrylamide having an alkyl group having 1 to 8 carbon atoms, diacetoneacrylamide, vinylpyrrolidone, and ethylbetaine methacrylate as a monomer unit. Of (D) hydroxyalkylated cyclodextrin, (E) hydrated alkyl-modified alkyl cellulose, (F) at least one selected from bisethoxydiglycol succinate and bisethoxydiglycol cyclohexanedicarboxylic acid, and (G) ethanol. It preferably contains at least one of them, and further contains other components as needed.

<(A) At least one antiperspirant component selected from a complex of aluminum halide, aluminum halide hydrate, and aluminum halide hydrate>
At least one antiperspirant component selected from the complex of aluminum halide, aluminum halide hydrate, and aluminum halide hydrate as the component (A) is mainly used to impart an antiperspirant effect. It is contained.

The antiperspirant component of the component (A) is not particularly limited as long as it is at least one selected from a complex of aluminum halide, aluminum halide hydrate, and aluminum halide hydrate, and is not particularly limited. It can be appropriately selected accordingly.

Examples of the aluminum halide include aluminum chloride.
Examples of the halogenated aluminum hydrate include chlorohydroxyaluminum, bromohydroxyaluminum, chlorohydroxyaluminum / zirconium and the like.
Examples of the complex of aluminum halide hydrate include chlorohydroxyaluminum / propylene glycol complex, chlorohydroxyaluminum / zirconium-glycine complex and the like.
These may be used alone or in combination of two or more.
Among these, chlorohydroxyaluminum, chlorohydroxyaluminum / propylene glycol complex, and chlorohydroxyaluminum / zirconium-glycine complex are preferable because they are excellent in antiperspirant effect.

As the antiperspirant component of the component (A), an appropriately synthesized one may be used, or a commercially available product may be used.
Commercially available products of the antiperspirant component of the component (A) include, for example, Aluminum (III) Chloride (manufactured by Tokyo Kasei Kogyo Co., Ltd., aluminum chloride) and a 50% aqueous solution of chlorohydroxyaluminum (Taki Chemical Co., Ltd.). , Chlorhydroxyaluminum), REHYDROL II (Clorhydroxyaluminum / propylene glycol complex manufactured by ELEMENTIS), Reach AZO-956G (Chlorhydroxyaluminum / zirconium-glycine complex manufactured by ELEMENTIS) and the like.

The content of the antiperspirant component of the component (A) is not particularly limited and may be appropriately selected depending on the intended purpose. However, from the viewpoint of the antiperspirant effect and the lack of tension of the skin, the antiperspirant. It is preferably 6% by mass to 15% by mass, more preferably 10% by mass to 15% by mass, based on the total amount of the composition. When the content of the component (A) is 6% by mass or more, the antiperspirant effect is good, and when it is 15% by mass or less, the skin does not feel taut.

<(B) A water-soluble inorganic salt other than an aluminum salt having at least one selected from alkali metal ion, barium ion, and magnesium ion as a counter ion>
A water-soluble inorganic salt other than an aluminum salt having at least one selected from alkali metal ion, barium ion, and magnesium ion as a counter ion of the component (B) is mainly contained to impart an antiperspirant effect. Will be done.

The water-soluble inorganic salt of the component (B) is not particularly limited as long as it is a water-soluble inorganic salt other than the aluminum salt, and can be appropriately selected depending on the intended purpose. Examples include carbonates and hydrochlorides. These may be used alone or in combination of two or more. Among these, at least one selected from sulfates, carbonates, and hydrochlorides is preferable because it has an excellent antiperspirant effect.

The salt is at least one counterion selected from alkali metal ions, barium ions, and magnesium ions.
Examples of the alkali metal ion include sodium ion and potassium ion.
Among these, the counterion is preferably sodium ion, potassium ion, or magnesium ion.

Examples of the sulfate include sodium sulfate, potassium sulfate, barium sulfate, magnesium sulfate and the like.
Examples of the carbonate include sodium carbonate, potassium carbonate, barium carbonate, magnesium carbonate and the like.
Examples of the bicarbonate include sodium bicarbonate, potassium bicarbonate and the like.
Examples of the hydrochloride include sodium chloride, potassium chloride, barium chloride, magnesium chloride and the like.
Among these, even when the amount of perspiration increases due to long-term sweating, a strong plug that does not easily elute into sweat can be quickly formed, and the antiperspirant effect and the appearance of the agent can be improved. In that respect, sulfate is preferable, and sodium sulfate, potassium sulfate, magnesium sulfate, and barium sulfate are more preferable.

As the water-soluble inorganic salt other than the aluminum salt of the component (B), an appropriately synthesized one may be used, or a commercially available product may be used.
Commercially available products of water-soluble inorganic salts other than the aluminum salt of the component (B) include, for example, neutral anhydrous sodium sulfate (manufactured by Nippon Kagaku Kogyo Co., Ltd., anhydrous sodium sulfate) and anhydrous sodium sulfate (Tomita Pharmaceutical Co., Ltd.). Company), magnesium sulfate (anhydrous) (manufactured by Wako Pure Chemical Industries, Ltd.), sodium carbonate (manufactured by Takasugi Pharmaceutical Co., Ltd.), sodium chloride (manufactured by Genuine Chemical Co., Ltd.), etc.

The content of the water-soluble inorganic salt other than the aluminum salt of the component (B) is not particularly limited and may be appropriately selected depending on the intended purpose. It is preferably 0.6% by mass to 3.0% by mass, more preferably 0.8% by mass to 2.0% by mass, based on the total amount of the sweat agent composition. When the content of the component (B) is 0.6% by mass or more, the antiperspirant effect is good, and when it is 3.0% by mass or less, the antiperspirant effect and the appearance of the agent are good.

<Mass ratio (A) / (B)>
The mass ratio (A) / (B) of the content (mass%) of the component (A) to the content (mass%) of the component (B) is 5 from the viewpoint of antiperspirant effect and appearance of the agent. It is ~ 20, preferably 5-11. If the mass ratio (A) / (B) is less than 5, the antiperspirant effect and the appearance of the agent are insufficient, and if it exceeds 20, the antiperspirant effect is insufficient. On the other hand, when the mass ratio (A) / (B) is 5 to 20, it is advantageous in that the antiperspirant effect and the appearance of the agent are good.

<(C) At least one selected from monoalkyl maleate having 1 to 4 carbon atoms in the alkyl group, alkylacrylamide having 1 to 8 carbon atoms in the alkyl group, diacetoneacrylamide, vinylpyrrolidone, and ethylbetaine methacrylate. Copolymer containing seed as a monomer unit or a salt thereof>
In addition to the component (A) and the component (B), the antiperspirant composition further comprises a monoalkyl maleate having an alkyl group having 1 to 4 carbon atoms and an alkyl group carbon as the component (C). It is more excellent antiperspirant effect to contain a copolymer or a salt thereof containing at least one selected from alkylacrylamide, diacetoneacrylamide, vinylpyrrolidone, and ethylbetaine methacrylate as a monomer unit having a number of 1 to 8. It is also preferable in that it can impart a feeling of tightness to the skin. When the antiperspirant composition contains the component (C), it is preferable that the component (G) described later is further contained.

Examples of the copolymer containing monoalkyl maleate having 1 to 4 carbon atoms as a monomer unit or a salt thereof include (vinyl methyl ether / ethyl maleate) copolymer, (vinyl methyl ether / butyl maleate) copolymer and the like. Can be mentioned.

Examples of the copolymer containing alkylacrylamide having 1 to 8 carbon atoms as a monomer unit or a salt thereof of the alkyl group include (Acrylate / alkyl acrylate (C1-18) / alkyl (C1-8) acrylamide) copolymer. Alternatively, the salt thereof and the like can be mentioned. The "C" represents the number of carbon atoms of the alkyl group.

Examples of the copolymer containing diacetone acrylamide as a monomer unit or a salt thereof include a (Acrylate / diacetone acrylamide) copolymer or a salt thereof.

Examples of the copolymer containing vinylpyrrolidone as a monomer unit or a salt thereof include a (vinylpyrrolidone / vinyl acetate) copolymer and the like.

Examples of the copolymer containing ethyl betaine methacrylate as a monomer unit or a salt thereof include a (ethyl betaine methacrylate / acrylates) copolymer or a salt thereof.

The copolymer of the component (C) or a salt thereof may be used alone or in combination of two or more. Among these, (vinyl methyl ether / ethyl maleate) copolymer, (vinyl methyl ether / butyl maleate) copolymer, (acrylamide / alkyl acrylate (C1-18) / alkyl) are excellent in that the skin does not feel taut. A (C1-8) acrylamide) copolymer or a salt thereof, a (acrylics / diacetone acrylamide) copolymer or a salt thereof is more preferable.

As the copolymer of the component (C) or a salt thereof, the copolymer (unneutralized product) or a salt thereof (neutralized product) may be used as it is, but the copolymer (unneutralized product) may be used. A salt obtained by using an arbitrary alkaline agent may be used, or a salt (neutralized product) of the copolymer may be desalted with an arbitrary acid.

The alkaline agent is not particularly limited and may be appropriately selected depending on the intended purpose. For example, ammonium, 2-amino-2-methyl-1-propanol (hereinafter, may be referred to as "AMP"), and the like. Examples thereof include 2-amino-2-methyl-1,3-propanediol (hereinafter, may be referred to as "AMPD"). These may be used alone or in combination of two or more. Among these, AMP is preferable.

The acid is not particularly limited and may be appropriately selected depending on the intended purpose. Examples thereof include hydrochloric acid and sulfuric acid. These may be used alone or in combination of two or more.

The desalting method is not particularly limited and can be appropriately selected from known methods. As a specific example of the desalting method, 1 g of the (Acrylate / alkyl acrylate (C1-18) / alkyl (C1-8) acrylamide) copolymer AMP is dissolved in 4 g of 95 mass% ethanol, and 65 μL of hydrochloric acid is added thereto. And desalting to obtain a (Acrylate / alkyl acrylate (C1-18) / alkyl (C1-8) acrylamide) copolymer.

As the copolymer of the component (C) or a salt thereof, a synthetic product thereof may be used, or a commercially available product may be used.
Commercially available products of the copolymer of the component (C) or a salt thereof include, for example, Gantrez ES-225 (manufactured by Ashland Japan Co., Ltd., (vinyl methyl ether / ethyl maleate) copolymer), Gantrez. SP-215 (Ashland Japan Co., Ltd., (vinyl methyl ether / ethyl maleate) copolymer), Gantretz ES-425 (Ashland Japan Co., Ltd., (vinyl methyl ether / butyl maleate) copolymer), plus Size L-9909B (manufactured by Reciprocal Chemical Industry Co., Ltd., (Acrylate / alkyl acrylate (C1-18) / alkyl (C1-8) acrylamide) copolymer), plus size L-9909 (manufactured by Reciprocal Chemical Industry Co., Ltd., (Acrylates) / Alkyl acrylate (C1-18) / Alkyl (C1-8) acrylamide) copolymer), plus size L-6740B (manufactured by Reciprocal Chemical Industry Co., Ltd., (Acrylate / Alkyl acrylate (C1-18) / Alkyl (C1-18)) 8) acrylamide) copolymer), plus size L-6330 (manufactured by Reciprocal Chemical Industry Co., Ltd., (Acrylate / diacetone acrylamide) copolymer AMP), PVP / VA S-630 (manufactured by Ashland Japan Co., Ltd., (vinylpyrrolidone /) (Vinyl acetate) copolymer), Yukaformer R205S (manufactured by Mitsubishi Chemical Co., Ltd., (ethyl betaine methacrylate / Acrylate) copolymer) and the like.

The content of the copolymer of the component (C) or a salt thereof is not particularly limited and may be appropriately selected depending on the intended purpose, but has an antiperspirant effect, no skin tension, and appearance of the agent. From this point of view, 0.25% by mass to 1.5% by mass is preferable, and 0.5% by mass to 1.5% by mass is more preferable with respect to the total amount of the antiperspirant composition. When the content of the component (C) is 0.25% by mass or more, the antiperspirant effect and the lack of tension of the skin are good, and when it is 1.5% by mass or less, the appearance of the agent is good. ..

<(D) Hydroxyalkylated cyclodextrin>
When the antiperspirant composition further contains hydroxyalkylated cyclodextrin as the component (D) in addition to the component (A) and the component (B), an excellent deodorant effect can be imparted. Preferable in terms of points.

The hydroxyalkylated cyclodextrin of the component (D) is one in which a hydroxyalkyl group is introduced into a part of the hydroxyl groups of the cyclodextrin.

The cyclodextrin used as a raw material for the hydroxyalkylated cyclodextrin of the component (D) is not particularly limited and may be appropriately selected depending on the intended purpose. For example, α-cyclodextrin, β-cyclodextrin, γ -Includes cyclodextrin and the like. These differ in the number of glucose constituents. The hydroxyalkylated cyclodextrin of the component (D) is made of a raw material containing one or more of these cyclodextrins.

The hydroxyalkyl group is not particularly limited and may be appropriately selected depending on the intended purpose. Examples thereof include substituents such as hydroxymethyl, hydroxyethyl, hydroxypropyl and hydroxybutyl.

The degree of substitution of the hydroxyalkyl group in the hydroxyalkylated cyclodextrin of the component (D) is not particularly limited and may be appropriately selected depending on the intended purpose, but from the viewpoint of solubility in water, 1 to 14 Is preferable.

Specific examples of the hydroxyalkylated cyclodextrin of the component (D) include hydroxymethyl-α-cyclodextrin, hydroxymethyl-β-cyclodextrin, hydroxymethyl-γ-cyclodextrin, hydroxyethyl-α-cyclodextrin, and hydroxy. Ethyl-β-cyclodextrin, hydroxyethyl-γ-cyclodextrin, hydroxypropyl-α-cyclodextrin, hydroxypropyl-β-cyclodextrin, hydroxypropyl-γ-cyclodextrin, hydroxybutyl-α-cyclodextrin, hydroxybutyl- Examples thereof include β-cyclodextrin and hydroxybutyl-γ-cyclodextrin. These may be used alone or in combination of two or more.
Among these, hydroxypropyl-β-cyclodextrin is preferable in terms of deodorant effect, price, and availability.

As the hydroxyalkylated cyclodextrin of the component (D), an appropriately synthesized one may be used, or a commercially available product may be used.
Examples of commercially available products of the hydroxyalkylated cyclodextrin of the component (D) include Celdex HP-β-CD (Nippon Shokuhin Kako Co., Ltd., hydroxypropyl-β-cyclodextrin) under the trade name.

The content of the hydroxyalkylated cyclodextrin of the component (D) is not particularly limited and may be appropriately selected depending on the intended purpose. However, from the viewpoint of deodorant effect and silky feeling, the total amount of the antiperspirant composition On the other hand, 0.1% by mass to 5.0% by mass is preferable, and 0.1% by mass to 2.5% by mass is more preferable. When the content of the component (D) is 0.1% by mass or more, the deodorizing effect is good, and when it is 5.0% by mass or less, the smooth feeling is good.

<(E) Hydrophobicized alkyl-modified alkyl cellulose>
In addition to the component (A) and the component (B), the antiperspirant composition further contains a hydrophobic alkyl-modified alkyl cellulose as a component (E), which imparts excellent non-stickiness after drying. It is preferable in that it can be used.

The hydrophobized alkyl-modified alkyl cellulose of the component (E) is not particularly limited and may be appropriately selected depending on the intended purpose. For example, dodecyloxyhydroxyalkyl cellulose (lauroxyhydroxyalkyl cellulose), tridecyloxyhydroxy. Alkyl Cellulose, Tetradecyloxy hydroxyalkyl Cellulose (Millistyroxy hydroxyalkyl Cellulose), Pentadecyloxy hydroxyalkyl Cellulose, Hexadecyloxy hydroxyalkyl Cellulose (Cetyroxy hydroxyalkyl Cellulose), Heptadecyloxy Hydroxyalkyl Cellulose, Octadesyloxy Hydroxyl Examples thereof include alkyl cellulose (stearoxy hydroxyalkyl cellulose), nonadesyloxy hydroxyalkyl cellulose, eikosyloxy hydroxyalkyl cellulose, henei cosyloxy hydroxyalkyl cellulose, docosyloxy hydroxyalkyl cellulose and the like. These may be used alone or in combination of two or more. Among these, octadecyloxyhydroxypropylmethylcellulose (stearoxyhydroxypropylmethylcellulose) is preferable because it is excellent in non-stickiness after drying.

As the hydrophobized alkyl-modified alkyl cellulose of the component (E), those synthesized as appropriate may be used, or commercially available products may be used.
Commercially available products of the hydrophobic alkyl-modified alkyl cellulose of the component (E) include, for example, Sangelose (registered trademark) 60L (manufactured by Daido Kasei Kogyo Co., Ltd., stearoxyhydroxypropyl methylcellulose) and Sangelose (registered). Trademark) 60M (manufactured by Daido Kasei Kogyo Co., Ltd., stearoxyhydroxypropylmethylcellulose), Sangelose (registered trademark) 90L (manufactured by Daido Kasei Kogyo Co., Ltd., stearoxyhydroxypropylmethylcellulose), Sangelose (registered trademark) 90M (registered trademark) Stearoxyhydroxypropylmethylcellulose, manufactured by Kogyo Co., Ltd.) and the like.

The content of the hydrophobized alkyl-modified alkyl cellulose of the component (E) is not particularly limited and may be appropriately selected depending on the intended purpose. However, from the viewpoint of the appearance of the agent and the non-stickiness after drying, the above. It is preferably 0.1% by mass to 1% by mass, more preferably 0.1% by mass to 0.5% by mass, based on the total amount of the antiperspirant composition. When the content of the hydrophobized alkyl-modified alkyl cellulose of the component (E) is 0.1% by mass or more, the non-stickiness after drying is good, and when it is 1% by mass or less, the appearance of the agent is good. is there.

<Mass ratio (B) / (E)>
The mass ratio (B) / (E) of the content (mass%) of the component (B) to the content (mass%) of the component (E) is not particularly limited and may be appropriately selected depending on the intended purpose. However, from the viewpoint of high-temperature storage stability and natural appearance after drying, 2.1 to 10 is preferable, 3 to 8 is more preferable, and 3 to 5 is particularly preferable. When the mass ratio (B) / (E) is 2.1 or more, the high temperature storage stability is good, and when it is 10 or less, the high temperature storage stability and the natural appearance after drying are good.

<(F) At least one selected from bisethoxydiglycol succinate and bisethoxydiglycol cyclohexanedicarboxylic acid>
In addition to the component (A) and the component (B), the antiperspirant composition contains at least one selected from bisethoxydiglycol succinate and bisethoxydiglycol cyclohexanedicarboxylic acid as the component (F). It is preferable to include it in that it can impart excellent high temperature storage stability and natural appearance after drying, and it is preferable to include bisethoxydiglycolcyclohexanedicarboxylic acid in excellent high temperature storage stability and after drying. It is more preferable in that it can impart a natural appearance and non-stickiness after drying.

In the antiperspirant composition containing the component (B), the present inventors further combine the component (C) with the component (E) and store the composition under high temperature (for example, 50 ° C.) conditions. In this case, the component (C) and the component (E) are precipitated, resulting in poor stability. The present inventors diligently studied this problem, and by further blending the component (F), not only the storage stability under high temperature conditions is improved, but also the natural appearance after drying is improved. I found. Therefore, when the antiperspirant composition contains the component (C) and the component (E), it is preferable that the component (F) is further contained.

At least one selected from the bisethoxydiglycol succinate and the bisethoxydiglycol cyclohexanedicarboxylic acid of the component (F) may be appropriately synthesized or a commercially available product may be used.
Examples of commercially available products of the bisethoxydiglycol succinate of the component (F) include, under the trade name, High Aquos Star DCS (manufactured by Higher Alcohol Industry Co., Ltd.).
Examples of commercially available products of the cyclohexanedicarboxylic acid bisethoxydiglycol of the component (F) include Neosolue-Aquolio (manufactured by Nippon Fine Chemical Co., Ltd., cyclohexane-1,4-dicarboxylic acid bisethoxydiglycol). Can be mentioned.

The content of at least one selected from the bisethoxydiglycol succinate and the bisethoxydiglycol cyclohexanedicarboxylic acid of the component (F) is not particularly limited and may be appropriately selected depending on the intended purpose. From the viewpoint of high-temperature storage stability, natural appearance after drying, and non-stickiness after drying, 0.1% by mass to 5% by mass is preferable, and 0.5% by mass, based on the total amount of the antiperspirant composition. More preferably, it is by mass% to 3% by mass. When the content of at least one selected from the bisethoxydiglycol succinate and the bisethoxydiglycol cyclohexanedicarboxylic acid of the component (F) is 0.1% by mass or more, the high temperature storage stability and the appearance after drying The naturalness of the mixture is good, and when it is 5% by mass or less, the non-stickiness after drying is good.

<(G) Ethanol>
It is preferable that the antiperspirant composition contains ethanol as the component (G) in addition to the component (A) and the component (B) in that excellent high-temperature heat retention stability can be imparted.
The ethanol of the component (G) may be absolute ethanol or hydrous ethanol.

As the ethanol of the component (G), an appropriately synthesized ethanol may be used, or a commercially available product may be used.
Examples of commercially available products of the ethanol of the component (G) include synthetic alcohol 95 degrees (Japan Alcohol Trading Co., Ltd.) and 95 degree synthetic specified alcohol (manufactured by Shinwa Alcohol Corporation) under the trade name.

The content of ethanol of the component (G) is not particularly limited and may be appropriately selected depending on the intended purpose. However, from the viewpoint of high temperature storage stability, 20 is used with respect to the total amount of the antiperspirant composition. It is preferably mass% to 50% by mass, more preferably 25% by mass to 50% by mass. When the ethanol content of the component (G) is 20% by mass or more or 50% by mass or less, the high temperature storage stability is good. In addition, in this specification, the content of ethanol of the said component (G) is the content converted into absolute ethanol.

<Other ingredients>
In addition to each of the components (A) to (G), the antiperspirant composition may contain other components as long as the effects of the present invention are not impaired. The other components are not particularly limited and may be appropriately selected depending on the intended purpose. For example, purified water, ion-exchanged water, pure water or solvent; triclosan, isopropylmethylphenol, benzalconium chloride. Bactericides such as: Nylon powder, polyethylene powder, silicic anhydride, silicone powder, cellulose powder, talc, kaolin, mica and other usability-enhancing powders; porous magnesia silica powder, synthetic layered magnesium pyrosilicate powder, etc. Deodorant powders such as calcium alginate powder (secondary aggregate), apatite powder; preservatives such as methylparaben, ethylparaben, sodium benzoate; skin protectants such as bentonite and stearyl glycyrrhetinate; glycerin, hyaluronic acid Moisturizers such as urea; plant extracts such as aloe extract, eucalyptus extract, and white birch extract; viscosity modifiers such as hydroxypropyl cellulose and hydroxymethyl cellulose; urocanic acid, paraaminobenzoic acid, isopropyl paramethoxysilicate, hydroxymethoxybenzophenone UV absorbers such as; antioxidants such as tocophenol; refreshing agents such as menthol and menthyl lactate; pigments; fragrances and the like.
The content of the other components in the antiperspirant composition is not particularly limited as long as the effects of the present invention are not impaired, and can be appropriately selected depending on the intended purpose.

-PH-
The pH of the antiperspirant composition at 25 ° C. is not particularly limited and may be appropriately selected depending on the intended purpose, but is 3.5 to 6.0 from the viewpoint of antiperspirant effect and appearance of the agent. preferable.

-viscosity-
The viscosity of the antiperspirant composition is not particularly limited and may be appropriately selected depending on the intended purpose. However, in the case of a liquid, from the viewpoint of antiperspirant effect, 1.0 mPa · s to 2 at 25 ° C. 000 mPa · s is preferable.

The viscosity of the antiperspirant composition was adjusted to 25 ° C., set in, for example, a BM type viscometer (using a No. 1 rotor or a No. 2 rotor), and the rotor was rotated at a rotation speed of 60 rpm. It can be measured 1 minute after the start of rotation of the rotor.

-Dosage form-
The dosage form of the antiperspirant composition is not particularly limited and may be appropriately selected depending on the intended purpose. Examples thereof include a liquid type, a solid type, a semi-solid type and a gel type. Among these, the liquid type and the gel type are preferable, and the liquid type is preferable because it is effective to apply it to the skin in a state of being dissolved in water, and it can be applied with high adhesion and a high effect can be exhibited. Is more preferable.

Examples of the liquid type include a roll-on type, a mist spray type, a lotion type and the like.
Examples of the solid type include a stick type and a sheet type.
Examples of the semi-solid type include a cream type.
Examples of the gel-like type include a gel type.
Among these, the roll-on type is preferable from the viewpoint of antiperspirant effect.

When the antiperspirant composition is a roll-on type, it is preferable that the antiperspirant product comprises the antiperspirant composition and a roll-on container having a coating ball filled with the antiperspirant composition. The roll-on type preparation is prepared in a ball in which the antiperspirant composition is housed in a known roll-on container, a part of the antiperspirant composition is exposed in the roll-on container, and the antiperspirant composition is rotatably held by a holder. The antiperspirant composition can be applied to the skin by adhering the antiperspirant composition and adhering the ball to the skin at the time of use.
The antiperspirant composition is also suitable for a gel formulation in which the antiperspirant composition is filled in a bottle container and applied as it is using the container, a gel formulation applied using a fingertip or a hand, and a lotion formulation. Can be used for.

-container-
Examples of the container that can be used for each of the above types include a roll-on container, a gel bottle container, a lotion bottle container, and a mist trigger type spray container. Among these, a roll-on container is preferable from the viewpoint of ease of application to the skin. The roll-on container can be suitably used because the antiperspirant composition can be applied to the skin with high adhesion and an antiperspirant effect can be exhibited.

The roll-on container is not particularly limited as long as it can be filled with the antiperspirant composition, and can be appropriately selected depending on the intended purpose. For example, the container described in JP-A-2005-186997. Bottle (Material: HDPE Natural, Fully filled content: Approx. 56 mL, Body diameter: Approx. 33 mm in diameter, Height: Approx. 87 mm, manufactured by Yoshino Kogyosho Co., Ltd.), Ring (Material: LLDPE Natural, Outer diameter: Approx. 26 mm, Height: about 18 mm, manufactured by Yoshino Kogyosho Co., Ltd.), balls (material: PP white, diameter: about 20 mm, manufactured by Yoshino Kogyosho Co., Ltd.), and the like.

The gel bottle container is not particularly limited as long as it can be filled with the antiperspirant composition, and can be appropriately selected depending on the intended purpose. For example, a bottle (trade name: TOMII, material: HDPE). Natural, full injection content: approx. 34 mL, body diameter: approx. 39 mm x 24 mm (oval), height: approx. 76 mm, manufactured by Takemoto Yohki Co., Ltd.), inner plug (trade name: TO cap nozzle B, material: PE Natural, outer diameter: about 12 mm, height: about 13 mm, manufactured by Takemoto Yohki Co., Ltd.), cap (trade name: TO cap, material: AS / PP white, outer diameter: diameter about 37 mm x 23 mm (oval), height : Approximately 22 mm, manufactured by Takemoto Yohki Co., Ltd.).

The lotion bottle container is not particularly limited as long as it can be filled with the antiperspirant composition, and can be appropriately selected depending on the intended purpose. For example, a bottle (trade name: TOMIII-50, material). : HDPE Natural, Fully filled content: Approximately 34 mL, Body diameter: Approximately 42 mm x 29 mm (oval), Height: Approximately 88 mm, manufactured by Takemoto Yohki Co., Ltd.), Inner plug (Product name: TO cap nozzle A, Material : PE natural, outer diameter: about 12 mm, height: about 13 mm, manufactured by Takemoto Yohki Co., Ltd.), cap (trade name: TOMIII cap, material: PP white, outer diameter: diameter about 37 mm x 25 mm (oval), height : Approximately 24 mm, manufactured by Takemoto Yohki Co., Ltd.).

The mist trigger container is not particularly limited as long as it can be filled with the antiperspirant composition, and can be appropriately selected depending on the intended purpose. For example, a bottle (trade name: PH-100, material). : PE Natural, Fully filled content: Approximately 100 mL, Body diameter: Approximately 40 mm in diameter, Height: Approximately 120 mm, manufactured by Kamimura Chemical Co., Ltd., Trigger (Product name: Z-305, Average diameter of spray hole: 0 A container made of .45 mm, manufactured by Mitani Valve Co., Ltd.) can be mentioned.

-Production method-
The method for producing the antiperspirant composition is not particularly limited and may be appropriately selected depending on the intended purpose. For example, the component (A) and the component (B), preferably the component (C). , The (D) component, the (E) component, the (F) component, and at least one of the (G) components, and if necessary, the other components, and water (antiperspirant composition). It can be produced by mixing (the remaining amount is mixed) so that the whole becomes 100% by mass. In producing the antiperspirant composition, the component (A), the component (B), the component (C), the component (D), the component (E), the component (F), and the component (G). ) Ingredients and the other ingredients may be used alone in the preparation, or may be used in the preparation in the form of a mixture containing two or more kinds of ingredients.

As a specific example of the method for producing the antiperspirant composition, the component (B) is added to water and uniformly dissolved, and then the component (A) is added and uniformly dissolved. Then, the component (D) and the component (E) are added and uniformly dissolved, and then the component (C) and the component (F) are uniformly dissolved and the component (G) is added. Examples thereof include a method of mixing and uniformly dissolving to obtain an antiperspirant composition.

The device for preparing the antiperspirant composition is not particularly limited and may be appropriately selected depending on the intended purpose. For example, a plurality of stirring blades (propeller, turbine, disper, etc.) capable of shearing and total mixing are provided. Such as a stirrer.

-Use-
The antiperspirant composition of the present invention is excellent in antiperspirant effect and lack of tension on the skin, and has a good appearance, so that it can be widely used in cosmetics, pharmaceuticals, non-pharmaceutical products, etc. It can be preferably used by an antiperspirant, a deodorant, an antiperspirant deodorant, and a deodorant.

Hereinafter, the present invention will be specifically described with reference to Examples, Comparative Examples, and Formulation Examples, but the present invention is not limited to these Examples and Formulation Examples.

The content of each component described in Examples, Comparative Examples, and Formulation Examples is shown in% by mass, and all are values converted to pure content. Further, the mass ratio (A) / (B) of the content (mass%) of the component (A) to the content (mass%) of the component (B), and the content (mass%) of the component (B). The mass ratio (B) / (E) to the content (mass%) of the component (E) and (E) is described by rounding off the second digit after the decimal point to obtain the first digit after the decimal point. Further, as the ethanol of the component (G), synthetic alcohol 95 degrees (manufactured by Japan Alcohol Trading Co., Ltd.) was used, and the absolute ethanol conversion value (content (mass%) converted to absolute ethanol) was described.

(Examples 1 to 9 and Comparative Examples 1 to 5)
Antiperspirant compositions having the compositions and contents shown in Tables 1 and 7 below were prepared by a conventional method.
Specifically, after the component (B) was added to water and uniformly dissolved, the component (A) or the comparative component of the component (A) and the fragrance as a common component were added and uniformly dissolved in Examples. The antiperspirant compositions of 1 to 9 and Comparative Examples 1 to 5 were obtained.

40 mL of each of the obtained antiperspirant compositions of Examples 1 to 9 and Comparative Examples 1 to 5 was filled in a roll-on container having the following specifications.
-Roll-on container-
・ Bottle (Material: HDPE Natural, Fully filled content: Approximately 56 mL, Body diameter: Approximately 33 mm in diameter, Height: Approximately 87 mm, manufactured by Yoshino Kogyosho Co., Ltd.)
・ Ring (Material: LLDPE Natural, Outer diameter: Approx. 26 mm, Height: Approx. 18 mm, manufactured by Yoshino Kogyosho Co., Ltd.)
・ Ball (Material: PP white, diameter: about 20 mm, manufactured by Yoshino Kogyosho Co., Ltd.)

(Examples 10 to 17)
Antiperspirant compositions having the composition and content shown in Table 2 below were prepared by a conventional method.
Specifically, the component (B) was added to water and uniformly dissolved, and then the component (A) was added and uniformly dissolved. Then, the component (G) and the fragrance as a common component were added, mixed and uniformly dissolved to obtain an antiperspirant composition of Examples 10 to 17.
40 mL of each of the obtained antiperspirant compositions of Examples 10 to 17 was filled in a roll-on container having the same specifications as those of Examples 1 to 9 and Comparative Examples 1 to 5.

(Examples 18 to 25)
Antiperspirant compositions having the composition and content shown in Table 3 below were prepared by a conventional method.
Specifically, the component (B) was added to water and uniformly dissolved, and then the component (A) was added and uniformly dissolved. Then, the component (G) in which the component (C) was uniformly dissolved and the fragrance as a common component were added and mixed and uniformly dissolved to obtain an antiperspirant composition of Examples 18 to 25.
40 mL of each of the obtained antiperspirant compositions of Examples 18 to 25 was filled in a roll-on container having the same specifications as those of Examples 1 to 9 and Comparative Examples 1 to 5.

(Examples 26 to 29)
Antiperspirant compositions having the composition and content shown in Table 4 below were prepared by a conventional method.
Specifically, the component (B) was added to water and uniformly dissolved, and then the component (A) was added and uniformly dissolved. Then, the component (D) was added and uniformly dissolved, and then the component (G) in which the component (C) was uniformly dissolved and the fragrance as a common component were added and mixed and uniformly dissolved. The antiperspirant compositions of Examples 26-29 were obtained.
40 mL of each of the obtained antiperspirant compositions of Examples 26 to 29 was filled in a roll-on container having the same specifications as those of Examples 1 to 9 and Comparative Examples 1 to 5.

(Examples 30 to 41)
Antiperspirant compositions having the compositions and contents shown in Tables 5 and 6 below were prepared by a conventional method.
Specifically, the component (B) was added to water and uniformly dissolved, and then the component (A) was added and uniformly dissolved. Then, after the component (E) was added and uniformly dissolved, the component (G) in which the components (C) and (F) were uniformly dissolved and the fragrance as a common component were added and mixed and uniformly dissolved. To obtain the antiperspirant compositions of Examples 30 to 41.
40 mL of each of the obtained antiperspirant compositions of Examples 30 to 41 was filled in a roll-on container having the same specifications as those of Examples 1 to 9 and Comparative Examples 1 to 5.

With respect to the prepared antiperspirant compositions (roll-on type) of Examples 1 to 41 and Comparative Examples 1 to 5, "antiperspirant effect", "no skin tension", and "non-tightening skin" were evaluated by the evaluation methods described below. The appearance of the agent was evaluated. For the antiperspirant compositions (roll-on type) of Examples 26 to 29, the "deodorant effect" and the "smooth feeling" were further evaluated by the evaluation methods described below. For the antiperspirant compositions (roll-on type) of Examples 30 to 41, the evaluation methods described below were used to further "high temperature storage stability", "non-stickiness after drying", and "appearance after drying". "Naturality" was evaluated. The results are shown in Tables 1 to 7 below.

<Antiperspirant effect>
0.40 g of each antiperspirant composition of Examples 1 to 41 and Comparative Examples 1 to 5 was applied to one armpit of six specialized panelists and dried. The other armpit was controlled (no antiperspirant composition applied). Then, sweat pads were attached to both sides, and exercise on a fitness bike was carried out for 20 minutes under high temperature conditions (38 ° C., 40% RH environment). The amount of perspiration in the antiperspirant composition coated portion and the antiperspirant composition unapplied portion was measured from the weight change of the sweat absorbing pad, respectively. The antiperspirant rate was calculated based on the following formula (1), and the average value of the antiperspirant rate of 6 specialized panelists was calculated. The "antiperspirant effect" was evaluated from the average value of the antiperspirant rate based on the following evaluation criteria.
Antiperspirant rate (%) = 100-Amount of perspiration in the area where the antiperspirant composition is applied / Amount of perspiration in the area where the antiperspirant composition is not applied x 100 ... Equation (1)
-Evaluation criteria for "antiperspirant effect"-
◎ ◎: Average value of antiperspirant rate is 65% or more and 100% or less ◎: Average value of antiperspirant rate is 55% or more and less than 65% ○: Average value of antiperspirant rate is 45% or more and less than 55% △: Antiperspirant Average rate is 10% or more and less than 45% ×: Average antiperspirant rate is 0% or more and less than 10%

<No feeling of tension on the skin>
0.40 g of each antiperspirant composition of Examples 1 to 41 and Comparative Examples 1 to 5 was applied to the armpits of 20 specialized panelists, dried, and then "skin tension" was applied based on the following evaluation criteria. "No feeling" was evaluated.
-Evaluation criteria for "no skin tension"-
◎ ◎: 18 to 20 out of 20 specialized panelists answered “no skin tension” ◎: 15 to 17 out of 20 specialized panelists answered “no skin tension” ○ : 11 to 14 out of 20 specialized panelists answered "no skin tension" △: 6 to 10 specialized panelists answered "no skin tension" ×: Specialty Less than 5 out of 20 panelists answered that "the skin does not feel taut"

<Appearance of agent>
50 g of each antiperspirant composition of Examples 1 to 41 and Comparative Examples 1 to 5 was placed in a glass vial, the appearance was observed at room temperature (25 ° C.), and the “appearance of the agent” was based on the following evaluation criteria. Was evaluated.
-Evaluation criteria for "appearance of agent"-
◎ ◎: The appearance of the agent is very good (clear liquid)
◎: Good appearance of the agent (slightly translucent liquid)
○: The appearance of the agent is slightly good (it is a translucent liquid).
Δ: The appearance of the agent is slightly poor (it is a cloudy liquid).
×: The appearance of the agent is poor (precipitate is a precipitated liquid).

<Deodorant effect>
0.40 g of each antiperspirant composition of Examples 26 to 29 was applied to the armpits of eight specialized panelists and dried. Then, exercise on a fitness bike was carried out for 20 minutes under high temperature conditions (38 ° C., 40% RH environment). Twenty hours after the application of the antiperspirant composition, the odor of the lower armpit was evaluated by the following six-step odor intensity display method. The average value of the odor intensity of eight specialized panelists was calculated. The "deodorant effect" was evaluated from the average value of the odor intensity based on the following evaluation criteria.
-6-step odor intensity display method-
0 points: Odorless 1 point: Smell that can be finally detected 2 points: Weak odor that can be understood what the odor is 3 points: Smell that can be easily detected 4 points: Strong odor 5 points: Strong odor-Evaluation criteria for "deodorant effect"-
◎: Average value of odor intensity is 0 points or more and less than 2 points ○: Average value of odor intensity is 2 points or more and less than 3 points △: Average value of odor intensity is 3 points or more and less than 4 points ×: Average value of odor intensity is 4 points or more and 5 points or less

<Smooth feeling>
0.40 g of each antiperspirant composition of Examples 26 to 29 was applied to one armpit of 30 specialized panelists and dried. The other armpit was controlled (no antiperspirant composition applied). Regarding the silky feel of the skin, each specialized panelist felt that the antiperspirant composition applied portion was clearly more silky than the control (antiperspirant composition unapplied portion) 8 hours after the application of the antiperspirant composition. The case was defined as "excellent in smoothness", and "smoothness" was evaluated based on the following evaluation criteria.
-Evaluation criteria for "smoothness"-
◎: 25 or more and 30 or less of the 30 specialized panelists answered that they had an excellent smooth feeling ○: 20 or more and 24 or less of the 30 specialized panelists answered that they had an excellent smooth feeling △: 30 specialized panelists 10 or more and 19 or less responded that "excellent smoothness" ×: 9 or less of 30 specialized panelists answered that "excellent smoothness"

<High temperature storage stability>
50 g of each antiperspirant composition of Examples 30 to 41 was placed in a glass vial, allowed to stand at 50 ° C. for 1 month, and then the appearance was observed. Based on the following evaluation criteria, "high temperature storage stability" was observed. Was evaluated.
-Evaluation criteria for "high temperature storage stability"-
◎ ◎: Very good high temperature storage stability (no foreign matter)
⊚: Good high temperature storage stability (precipitates are very small at the gas-liquid interface)
◯: Slightly good high-temperature storage stability (precipitates slightly at the gas-liquid interface)
Δ: Slightly poor high-temperature storage stability (precipitates are at the gas-liquid interface)
X: Poor high-temperature storage stability (large enough for the precipitate to peel off from the gas-liquid surface)

<Non-stickiness after drying>
0.40 g of each antiperspirant composition of Examples 30 to 41 was applied to one armpit of 20 specialized panelists, dried, and then "non-sticky after drying" based on the following evaluation criteria. Was evaluated.
-Evaluation criteria for "non-stickiness after drying"-
◎: 16 to 20 out of 20 specialized panelists answered that they were not sticky ○: 11 to 15 out of 20 specialized panelists answered that they were not sticky △: 6 or more out of 20 specialized panelists 10 or less responded that they were not sticky ×: 5 or less of 20 specialized panelists answered that they were not sticky

<Natural appearance after drying>
0.40 g of each antiperspirant composition of Examples 30 to 41 was applied to one armpit of 20 specialized panelists, dried, and then, based on the following evaluation criteria, "naturalness of appearance after drying". Was evaluated.
-Evaluation criteria for "natural appearance after drying"-
◎: 16 or more and 20 or less of 20 specialized panelists answered that they look natural ○: 11 or more and 15 or less of 20 specialized panelists answered that they look natural △: 20 specialized panelists 6 or more and 10 or less responded that the appearance was natural ×: 5 or less of the 20 specialized panelists answered that the appearance was natural

(Prescription examples 1 to 5)
Antiperspirant compositions having the composition and content shown in Table 8 below were prepared by a conventional method.
Specifically, the component (B) was added to water and uniformly dissolved, and then the component (A) was added and uniformly dissolved. After that, the components (D) and (E) were added and uniformly dissolved, and then the component (G) in which the components (C) and (F) were uniformly dissolved and the fragrance as a common component were added. It was added and mixed and uniformly dissolved to obtain an antiperspirant composition of Formulation Examples 1 to 5.
40 mL of each of the obtained antiperspirant compositions was filled in a roll-on container having the same specifications as in Examples 1 to 9 and Comparative Examples 1 to 5.

The prepared antiperspirant compositions (roll-on type) of Formulation Examples 1 to 5 were evaluated by the same evaluation method as in Examples 26 to 41, and had "antiperspirant effect", "no skin tension", and "appearance of the agent". , "High temperature storage stability", "deodorant effect", "smoothness", "non-stickiness after drying", and "natural appearance after drying" were evaluated. The results are shown in Table 8 below.

Details of each component used in the above-mentioned Examples, Comparative Examples, and Formulation Examples are shown in Table 9 below.

Examples of aspects of the present invention include the following.
<1> (A) At least one antiperspirant component selected from a complex of aluminum halide, aluminum halide hydrate, and aluminum halide hydrate.
(B) A water-soluble inorganic salt other than an aluminum salt having at least one selected from alkali metal ion, barium ion, and magnesium ion as a counter ion.
Contains,
The antiperspirant composition is characterized in that the mass ratio (A) / (B) of the content of the component (A) to the content of the component (B) is 5 to 20.
<2> (C) Selected from monoalkyl maleate having 1 to 4 carbon atoms in the alkyl group, alkylacrylamide having 1 to 8 carbon atoms in the alkyl group, diacetoneacrylamide, vinylpyrrolidone, and ethylbetaine methacrylate. A copolymer containing at least one type as a monomer unit or a salt thereof, and (G) ethanol,
The antiperspirant composition according to <1>, which further contains.
<3> (E) Hydrophobicized alkyl-modified alkyl cellulose, and (F) at least one selected from bisethoxydiglycol succinate and bisethoxydiglycol cyclohexanedicarboxylic acid.
The antiperspirant composition according to <2>, which further contains.
<4> The antiperspirant composition according to <3>, wherein the mass ratio (B) / (E) of the content of the component (B) to the content of the component (E) is 2.1 to 10. It is a thing.
<5> The antiperspirant composition according to any one of <1> to <4>, which contains (D) hydroxyalkylated cyclodextrin.
<6> The antiperspirant composition according to any one of <1> to <5>, wherein the component (B) is at least one selected from sulfate, carbonate, and hydrochloride.
<7> The components (C) are (Acrylate / Diacetone Acrylamide) Copolymer AMP, (Acrylate / Alkyl Acrylate (C1-18) / Alkyl (C1-8) Acrylamide) Copolymer, and (Vinyl Methyl Ether / Ethyl Maleate). ) The antiperspirant composition according to any one of <2> to <6>, which is at least one selected from the copolymer.

The antiperspirant composition of the present invention is excellent in antiperspirant effect and lack of tension on the skin, and has a good appearance, so that it can be widely used in cosmetics, pharmaceuticals, non-pharmaceutical products, and the like. It can be preferably used by an antiperspirant, a deodorant, an antiperspirant deodorant, and a deodorant.

Claims

(A) At least one antiperspirant component selected from a complex of aluminum halide, aluminum halide hydrate, and aluminum halide hydrate.
(B) A water-soluble inorganic salt other than an aluminum salt having at least one selected from alkali metal ion, barium ion, and magnesium ion as a counter ion.
Contains,
An antiperspirant composition, wherein the mass ratio (A) / (B) of the content of the component (A) to the content of the component (B) is 5 to 20.
(C) At least one selected from monoalkyl maleate having 1 to 4 carbon atoms in the alkyl group, alkyl acrylamide having 1 to 8 carbon atoms in the alkyl group, diacetone acrylamide, vinyl pyrrolidone, and ethyl betaine methacrylate. A copolymer containing the above as a monomer unit or a salt thereof, and (G) ethanol,
The antiperspirant composition according to claim 1, further comprising.
(E) Hydrophobicized alkyl-modified alkyl cellulose, and (F) at least one selected from bisethoxydiglycol succinate and bisethoxydiglycol cyclohexanedicarboxylic acid.
The antiperspirant composition according to claim 2, further comprising.
The antiperspirant composition according to claim 3, wherein the mass ratio (B) / (E) of the content of the component (B) to the content of the component (E) is 2.1 to 10.
(D) The antiperspirant composition according to any one of claims 1 to 4, which contains hydroxyalkylated cyclodextrin.
The antiperspirant composition according to any one of claims 1 to 5, wherein the component (B) is at least one selected from sulfate, carbonate, and hydrochloride.
The component (C) is from the (Acrylate / Diacetoneacrylamide) copolymer AMP, the (Acrylate / Alkyl acrylate (C1-18) / Alkyl (C1-8) acrylamide) copolymer, and the (Vinylmethyl ether / Ethyl maleate) copolymer. The antiperspirant composition according to any one of claims 2 to 6, which is at least one selected.