JP2019156815A - Antiperspirant composition, and antiperspirant - Google Patents

Abstract

To provide an antiperspirant composition that can suppress discomfort during and after application, has excellent antiperspirant effect and attachment to skin after application, and has excellent persistence of body odor prevention effect.SOLUTION: An antiperspirant composition has ethanol (component A), antiperspirant component (component B), hydrophobized hydroxyalkyl cellulose (component C), acrylic acid coat-forming polymer (component D), and water (component E).SELECTED DRAWING: None

Description

  The present invention relates to an antiperspirant composition comprising an antiperspirant component. The present invention also relates to an antiperspirant in which a container is filled with the antiperspirant composition.

  Body odor such as scent is caused by the mixture of sweat and sebum, which are decomposed by skin resident bacteria. Therefore, in order to prevent body odor, it is effective to suppress perspiration that causes odors, and antiperspirant compositions containing various antiperspirant components are used.

  The antiperspirant composition is filled in a container and used as an antiperspirant. The above antiperspirants are used in various types such as gels, creams, lotions, aerosol sprays, roll-ons, mists and sticks.

  Among them, the roll-on type antiperspirant can directly and evenly apply the antiperspirant composition to the application object without applying the antiperspirant composition to the application object. Excellent usability. In addition, the roll-on type antiperspirant has a higher adhesion to the skin of the contents than the aerosol type antiperspirant, and the effect of preventing body odor tends to be sustained.

  As an example of the antiperspirant composition, the following Patent Document 1 contains (A) an antiperspirant component and (B-1) a specific acrylic acid-based anionic polymer. The deodorant composition whose content mass ratio of B-1) component is 0.02-5 is disclosed. Moreover, in the Example of the following patent document 1, hydrophilic hydroxypropyl cellulose is simply used as a thickener.

  Patent Document 2 listed below includes (A) an antiperspirant component, (B) an anionic polymer, (C) a nonionic surfactant having an average added mole number of ethylene oxide (EO) of 5 mol or more, and ( D) Antiperspirant containing ethanol, wherein the mass ratio of the content of the component (C) to the total content of the component (A) and the component (B) is 0.03 to 0.7. An agent composition is disclosed.

WO2013 / 081055A1 JP2015-117239A

  In the conventional antiperspirant composition as described in the above-mentioned Patent Document 1, the feeling of discomfort at the time of application and after application such as dripping from the skin at the time of application, or feeling of stickiness or skin tension after application, etc. I can remember. In addition, in the conventional antiperspirant composition as described in Patent Documents 1 and 2, the antiperspirant effect is not sufficient, or the antiperspirant composition flows down due to sweat, etc. May decrease.

  An object of the present invention is to provide an antiperspirant composition that can suppress discomfort during and after application, is excellent in antiperspirant effect and adhesion to the skin after application, and has excellent durability of body odor prevention. That is.

  The present invention provides an antiperspirant composition comprising the following component (A), the following component (B), the following component (C), the following component (D), and the following component (E).

Component (A): Ethanol Component (B): Antiperspirant component Component (C): Hydrophobized hydroxyalkyl cellulose Component (D): Acrylic acid type film-forming polymer Component (E): Water

  In the antiperspirant composition of the present invention, the content of the component (C) is 0.4% by mass or more and 1.5% by mass or less, and the component (D) with respect to the content of the component (C). The mass ratio of the content is preferably 0.1 or more and less than 0.6.

  In the antiperspirant composition of the present invention, the component (D) preferably contains the following component (D1).

  Component (D1): alkyl acrylate copolymer, (octylacrylamide / hydroxypropyl acrylate / butylaminoethyl methacrylate) copolymer, (alkyl acrylate / octylacrylamide) copolymer, (acrylates / alkyl acrylate (C1-18) / alkyl (C1-8) acrylamide) copolymer, and acrylic acid type film-forming polymer selected from the group consisting of these salts

  The antiperspirant composition of the present invention preferably contains the following component (F).

  Ingredient (F): Fatty acid ester oil

  In the antiperspirant composition of this invention, it is preferable that content of the said component (F) is 0.01 mass% or more and 2.0 mass% or less.

  In the antiperspirant composition of the present invention, the component (F) preferably contains the following component (F1).

  Component (F1): fatty acid ester oil selected from the group consisting of isopropyl myristate, isopropyl palmitate, 2-ethylhexyl palmitate, 2-ethylhexyl stearate, 2-octyldodecyl myristate, and glyceryl tri-2-ethylhexanoate

  The antiperspirant composition of the present invention preferably does not contain a nonionic surfactant or contains a nonionic surfactant at less than 0.1% by mass.

  The present invention also provides an antiperspirant comprising a container and the antiperspirant composition described above, wherein the container is filled with the antiperspirant composition.

  In the antiperspirant of the present invention, the container is preferably a roll-on container.

  Since the antiperspirant composition of the present invention contains specific components (A), components (B), components (C), components (D), and components (E), it suppresses discomfort during and after application. It is excellent in antiperspirant effect and adhesion to the skin after application, and is excellent in sustainability of body odor prevention effect.

  Hereinafter, the present invention will be described in detail.

  The antiperspirant composition of the present invention contains at least ethanol, an antiperspirant component, a hydrophobized hydroxyalkyl cellulose, an acrylic acid type film-forming polymer, and water.

  In the present specification, the “ethanol” may be referred to as “component (A)”.

  In the present specification, the “antiperspirant component” may be referred to as “component (B)”.

  In the present specification, the “hydrophobized hydroxyalkyl cellulose” is sometimes referred to as “component (C)”.

  In the present specification, the “acrylic acid type film-forming polymer” may be referred to as “component (D)”.

  In the present specification, the “water” may be referred to as “component (E)”.

  The antiperspirant composition of this invention contains a component (A), a component (B), a component (C), a component (D), and a component (E).

  Since the antiperspirant composition of the present invention has the above-described configuration, it can suppress discomfort during and after application, has excellent antiperspirant effect and adhesion to the skin after application, and prevents body odor. Excellent durability of effect.

  The antiperspirant composition of the present invention can suppress unpleasant sensations during and after application, such as dripping from the skin during application or feeling of stickiness or skin tightness after application.

  The antiperspirant composition of the present invention is excellent in the antiperspirant effect. Moreover, since the antiperspirant composition of the present invention is excellent in adhesion to the skin, the antiperspirant composition is unlikely to flow down due to sweat or the like, and the antiperspirant composition is easily retained on the skin. For this reason, in the antiperspirant composition of this invention, the body odor prevention effect excellent in sustainability is exhibited.

  The antiperspirant composition of the present invention may contain a fatty acid ester oil.

  In the present specification, the “fatty acid ester oil” may be referred to as “component (F)”.

  As described above, the antiperspirant composition of the present invention includes at least the component (A), the component (B), the component (C), the component (D), and the component (E). The antiperspirant composition of the present invention may contain a component (F).

  The antiperspirant composition of the present invention may contain components other than components (A) to (F).

  Only one type of each of the above components, for example, the component (A), the component (B), the component (C), the component (D), the component (E), the component (F), and the like is used. Two or more kinds may be used.

  Hereinafter, the detail of each component used for the antiperspirant composition of this invention is demonstrated.

(Ingredient (A))
Component (A) is ethanol. Ingredient (A) enhances quick-drying, suppresses discomfort during and after application, such as dripping from the skin during application, feeling sticky after application, and feeling of skin tension, etc. Can do. Moreover, the plastic effect of suppressing that the film | membrane formed with a component (D) becomes hard too much with a component (A) is exhibited.

  In 100% by mass of the antiperspirant composition of the present invention, the content of the component (A) is preferably 50.0% by mass or more, more preferably 60.0% by mass or more, preferably 90.0% by mass or less. More preferably, it is 80.0 mass% or less. When the content of the component (A) is not less than the above lower limit and not more than the above upper limit, quick-drying can be further enhanced, and discomfort during and after coating can be further suppressed, and formed by the component (D) Can be formed satisfactorily.

(Ingredient (B))
Component (B) is an antiperspirant component. With the component (B), it is possible to suppress the generation of sweat, for example, by causing the skin to converge.

  A conventionally well-known antiperspirant component can be used as a component (B). As for a component (B), only 1 type may be used and 2 or more types may be used together.

  Examples of the component (B) include aluminum salts and zinc paraphenol sulfonate.

  Examples of the aluminum salt include aluminum chloride, aluminum sulfate, potassium aluminum sulfate (potassium alum), aluminum ammonium sulfate (ammonium alum), aluminum acetate, chlorohydroxyaluminum, and allantoinchlorohydroxyaluminum.

  From the viewpoint of further enhancing the antiperspirant effect, the component (B) is preferably an antiperspirant component selected from the group consisting of an aluminum salt and zinc paraphenolsulfonate, such as chlorohydroxyaluminum, alum, and paraphenol. An antiperspirant component selected from the group consisting of zinc sulfonate is more preferable, and an antiperspirant component selected from the group consisting of chlorohydroxyaluminum, potassium aluminum sulfate, and zinc paraphenolsulfonate is more preferable.

  In 100% by mass of the antiperspirant composition of the present invention, the content of the component (B) is preferably 1.0% by mass or more, more preferably 3.0% by mass or more, preferably 25.0% by mass or less. More preferably, it is 20.0 mass% or less, More preferably, it is 15.0 mass% or less. When the content of the component (B) is not less than the above lower limit and not more than the above upper limit, the antiperspirant effect can be effectively enhanced.

(Ingredient (C))
Component (C) is a hydrophobized hydroxyalkyl cellulose. The hydrophobized hydroxyalkyl cellulose is a hydrophobized product of hydroxyalkyl cellulose. Component (C) is a thickener. Component (C) can suppress discomfort during and after application, such as dripping from the skin during application, feeling sticky after application, or feeling of skin tightness after application. In addition, the antiperspirant effect and adhesion to the skin can be enhanced by the component (C), the antiperspirant composition is less likely to flow off due to sweat and the like, and the antiperspirant composition can be favorably retained on the skin. it can. Therefore, the body odor prevention effect excellent in sustainability can be exhibited. In addition, the component (C) can suppress dripping at the time of application, and can improve dischargeability from the container and applicability.

  The component (C) is not particularly limited, and conventionally known hydrophobized hydroxyalkyl cellulose can be used. Examples of the component (C) include hydrophobized hydroxypropylmethylcellulose and hydrophobized hydroxyethylcellulose. As for a component (C), only 1 type may be used and 2 or more types may be used together.

  The component (C) usually has an alkyl group (an alkyl group that imparts hydrophobicity) for hydrophobicity. Component (C) is preferably a hydrophobized hydroxyalkyl cellulose in which an alkyl group is bonded to hydroxyalkyl cellulose. The hydrophobized hydroxypropylmethylcellulose is preferably a hydrophobized hydroxyalkylcellulose in which an alkyl group is bonded to hydroxypropylmethylcellulose. The hydrophobic hydroxyethyl cellulose is preferably a hydrophobic hydroxyalkyl cellulose in which an alkyl group is bonded to hydroxyethyl cellulose.

  The alkyl group imparting hydrophobicity may be linear or branched. Since the hydrophobicity is high, the alkyl group imparting hydrophobicity is preferably a long-chain alkyl group. The number of carbon atoms of the alkyl group imparting hydrophobicity is not particularly limited, but is preferably 12 or more, and preferably 22 or less. Moreover, it is preferable that carbon number of the linear part of the alkyl group which provides the said hydrophobicity is 12 or more. Since the hydrophobicity is high, the component (C) is preferably a hydrophobized hydroxyalkyl cellulose in which an alkyl group having 12 or more carbon atoms (an alkyl group that imparts hydrophobicity) is bonded to the hydroxyalkyl cellulose.

  Examples of the alkyl group imparting hydrophobicity include dodecyl, tridecyl, tetradecyl, pentadecyl, hexadecyl, heptadecyl, octadecyl, nonadecyl, eicosyl, heicosyl, and docosyl groups.

  Component (C) preferably has an alkoxy group. Component (C) is preferably an alkoxyhydroxyalkyl cellulose. The hydrophobized hydroxypropylmethylcellulose is preferably alkoxyhydroxypropylmethylcellulose.

  The alkyl group in the alkoxy group may be linear or branched. Although carbon number of the said alkoxy group is not specifically limited, Preferably it is 12 or more, Preferably it is 22 or less. Moreover, it is preferable that carbon number of the linear part of the said alkoxy group is 12 or more.

  Examples of the alkoxy group include dodecyloxy group (lauroxy group), tridecyloxy group, tetradecyloxy group (myristyloxy group), pentadecyloxy group, hexadecyloxy group (cetyloxy group), heptadecyloxy group, octadecyloxy group (stearoxy group). Group), nonadecyloxy group, eicosyloxy group, heneicosyloxy group, docosyloxy group and the like.

  Examples of the component (C) include dodecyloxyhydroxyalkylcellulose (lauroxyhydroxyalkylcellulose), tridecyloxyhydroxyalkylcellulose, tetradecyloxyhydroxyalkylcellulose (myristyloxyhydroxyalkylcellulose), and pentadecyloxyhydroxyalkylcellulose. , Hexadecyloxyhydroxyalkylcellulose (cetyloxyhydroxyalkylcellulose), heptadecyloxyhydroxyalkylcellulose, octadecyloxyhydroxyalkylcellulose (stearoxyhydroxyalkylcellulose), octadecyloxyhydroxypropylmethylcellulose (stearoxyhydroxypropylmethylcellulose), Nonadecyloxyhydroxyalkyl cellulose, D Co-siloxy-hydroxy alkyl celluloses, Heng Eiko siloxy hydroxyalkyl cellulose, and docosyl siloxy hydroxyalkyl cellulose.

  From the viewpoint of further enhancing the sustainability of the body odor prevention effect, the component (C) is preferably octadecyloxyhydroxyalkylcellulose (stearoxyhydroxyalkylcellulose), and octadecyloxyhydroxypropylmethylcellulose (stearoxyhydroxypropyl). Methyl cellulose) is more preferable.

  Commercially available components (C) include stearoxy hydroxypropyl methylcellulose, manufactured by Daido Kasei Kogyo Co., Ltd., trade name “Sangelose 60L”, trade name “Sangelose 60M”, trade name “Sangelose 90L”, and trade name. “Sangelose 90M” and the like.

  In 100% by mass of the antiperspirant composition of the present invention, the content of the component (C) is preferably 0.4% by mass or more, more preferably 0.7% by mass or more, preferably 1.5% by mass or less. More preferably, it is 1.3 mass% or less. When the content of the component (C) is at least the above lower limit, the antiperspirant effect and adhesion to the skin can be further enhanced, and the sustainability of the body odor preventing effect can be further enhanced. When the content of the component (C) is not more than the above upper limit, dripping at the time of application is further suppressed, and the dischargeability from the container and the applicability are further improved. Further, when the content of the component (C) is not less than the above lower limit and not more than the above upper limit, discomfort at the time of application and after application can be further suppressed, and generation of aggregates is suppressed after application and after drying. be able to.

(Component (D))
Component (D) is an acrylic acid type film-forming polymer. The component (D) can enhance the adhesion to the skin, the antiperspirant composition is less likely to flow off due to sweat and the like, and the antiperspirant composition can be favorably retained on the skin. Therefore, the body odor prevention effect excellent in sustainability can be exhibited. As for a component (D), only 1 type may be used and 2 or more types may be used together.

  Examples of the component (D) include alkyl acrylate copolymers, (octyl acrylamide / hydroxypropyl acrylate / butyl aminoethyl methacrylate) copolymers, (alkyl acrylate / octyl acrylamide) copolymers, (acrylates / alkyl acrylates (C1- 18) / alkyl (C1-8) acrylamide) copolymer, (alkyl acrylate / diacetone acrylamide) copolymer, (methacryloyloxyethylcarboxybetaine / alkyl methacrylate) copolymer, and salts thereof.

  Examples of the salt constituting these salts include 2-amino-2-methyl-1-propanol (AMP), 2-amino-2-methyl-1,3-propanol (AMPD), sodium (Na ), And ammonium.

  Examples of these salts include alkyl acrylate copolymer AMP, alkyl acrylate copolymer Na, alkyl acrylate copolymer ammonium, (acrylates / alkyl acrylate (C1-18) / alkyl (C1-8) acrylamide) copolymer AMP, (Alkyl acrylate / diacetone acrylamide) copolymer AMP, and (alkyl acrylate / diacetone acrylamide) copolymer AMPD.

  Component (D) is preferably a film-forming polymer obtained using (meth) acrylic acid alkyl ester as an essential monomer component. The film-forming polymer obtained using (meth) acrylic acid alkyl ester as an essential monomer component is an acrylic acid-type film-forming polymer.

  From the viewpoint of further enhancing the adhesion to the skin and further enhancing the sustainability of the body odor prevention effect, component (D) is an anionic property obtained by using (meth) acrylic acid alkyl ester as an essential monomer component. A film-forming polymer is more preferable.

  From the viewpoint of further enhancing the adhesion to the skin and further enhancing the sustainability of the body odor prevention effect, the component (D) is an alkyl acrylate copolymer (octylacrylamide / hydroxypropyl acrylate / butylaminoethyl methacrylate). Copolymer, (alkyl acrylate / octyl acrylamide) copolymer, (acrylates / alkyl acrylate (C1-18) / alkyl (C1-8) acrylamide) copolymer, and acrylic acid type film-forming polymer selected from the group consisting of these salts (At least one acrylic acid type film-forming polymer) is preferably included.

  In the present specification, the above-mentioned “alkyl acrylate copolymer, (octylacrylamide / hydroxypropyl acrylate / butylaminoethyl methacrylate) copolymer, (alkyl acrylate / octylacrylamide) copolymer, (acrylates / alkyl acrylate (C1-18)”). ) / Alkyl (C1-8) acrylamide) copolymer and an acrylic acid type film-forming polymer selected from the group consisting of these salts may be referred to as “component (D1)”. Therefore, it is preferable that a component (D) contains a component (D1). It is preferable that the antiperspirant composition of this invention contains a component (D1). Component (D1) is a film-forming polymer obtained using (meth) acrylic acid alkyl ester as an essential monomer component.

  As for a component (D1), only 1 type may be used and 2 or more types may be used together.

  In 100% by mass of the antiperspirant composition of the present invention, the content of the component (D) is preferably 0.05% by mass or more, more preferably 0.1% by mass or more, preferably 1.0% by mass or less, More preferably, it is 0.8 mass% or less. When the content of the component (D) is not less than the above lower limit and not more than the above upper limit, the adhesion to the skin can be further enhanced, and the sustainability of the body odor preventing effect can be further enhanced.

  The mass ratio of the content of the component (D) to the content of the component (C) (content of the component (D) / content of the component (C)) is preferably 0.1 or more, preferably 0.8. It is less than 6, more preferably less than 0.55. When the mass ratio (content of component (D) / content of component (C)) is not less than the above lower limit, the adhesion to the skin can be further enhanced, and the durability of the body odor prevention effect is further enhanced. Can be increased. Moreover, the discomfort at the time of application | coating and after application | coating can further be suppressed as the said mass ratio (content of a component (D) / content of a component (C)) is less than the said upper limit.

(Ingredient (E))
Ingredient (E) is water. Component (E) serves as a medium for the antiperspirant composition of the present invention. Component (E) is preferably purified water. By the component (E), the combined effect of the component (C) and the component (D) can be effectively expressed.

  In 100% by mass of the antiperspirant composition of the present invention, the content of the component (E) is preferably 5.0% by mass or more, more preferably 10.0% by mass or more, preferably 40.0% by mass or less. More preferably, it is 30.0 mass% or less. When the content of the component (E) is not less than the above lower limit and not more than the above upper limit, the combined effect of the component (C) and the component (D) can be expressed more effectively.

(Ingredient (F))
Component (F) is a fatty acid ester oil. By blending the component (F), the adhesion to the skin can be further enhanced, the antiperspirant composition is less likely to flow off due to sweat and the like, and the antiperspirant composition can be favorably retained on the skin. it can. Therefore, the body odor prevention effect excellent in sustainability can be exhibited. As for a component (F), only 1 type may be used and 2 or more types may be used together.

  Examples of the component (F) include isononyl isononanoate, isopropyl myristate, isopropyl palmitate, diisopropyl adipate, diisobutyl adipate, 2-ethylhexyl palmitate, 2-ethylhexyl stearate, 2-octyldodecyl myristate, isostearic acid Examples include propylene glycol, pentaerythrityl tetraoctanoate, pentaerythritol tetraisostearate, glyceryl tri-2-ethylhexanoate, propylene glycol myristate-3benzyl ether, and cetyl 2-ethylhexanoate.

  From the viewpoint of further enhancing the adhesion to the skin and further enhancing the sustainability of the body odor prevention effect, the component (F) is composed of isopropyl myristate, isopropyl palmitate, 2-ethylhexyl palmitate, 2-ethylhexyl stearate, It preferably contains a fatty acid ester oil (at least one fatty acid ester oil) selected from the group consisting of 2-octyldodecyl myristate and glyceryl tri-2-ethylhexanoate.

  In the present specification, the above-mentioned “fatty acid selected from the group consisting of isopropyl myristate, isopropyl palmitate, 2-ethylhexyl palmitate, 2-ethylhexyl stearate, 2-octyldodecyl myristate, and glyceryl tri-2-ethylhexanoate. The “ester oil” may be referred to as “component (F1)”. That is, it is preferable that a component (F) contains a component (F1).

  As for a component (F1), only 1 type may be used and 2 or more types may be used together.

  In 100% by mass of the antiperspirant composition of the present invention, the content of the component (F) is preferably 0.01% by mass or more, more preferably 0.05% by mass or more, preferably 2.0% by mass or less. More preferably, it is 1.0 mass% or less. When the content of the component (F) is at least the above lower limit, the adhesion to the skin can be further increased, and the sustainability of the body odor prevention effect can be further increased. Moreover, water content can be made favorable as content of a component (F) is below the said upper limit, and an antiperspirant effect can be improved further.

(Other ingredients)
The antiperspirant composition of the present invention may contain components other than the components (A) to (F) as long as the effects of the present invention are not impaired. Only 1 type may be used for components other than the said component (A)-(F), respectively, and 2 or more types may be used together.

  Examples of components other than the above components (A) to (F) include, for example, bactericides, surfactants, moisturizers, deodorants, silicone oil agents, sequestering agents, antiseptics, cooling agents, anti-inflammatory agents, plants Examples include extracts, powders, and fragrances.

  Examples of the bactericides include isopropylmethylphenol, lysozyme chloride, hinokitiol, and salicylic acid.

  Examples of the refreshing agent include menthol, camphor, and menthyl glyceryl ether.

  From the viewpoint of enhancing the antiperspirant effect and adhesion to the skin and enhancing the sustainability of the body odor preventing effect, the antiperspirant composition of the present invention does not contain a nonionic surfactant or is nonionic. It is preferable that the surfactant is contained at less than 0.1% by mass. When the antiperspirant composition of the present invention contains a nonionic surfactant, the content of the nonionic surfactant in 100% by mass of the antiperspirant composition of the present invention is preferably 0.05. Less than mass%, more preferably less than 0.01 mass%. It is particularly preferred that the antiperspirant composition of the present invention does not contain a nonionic surfactant.

(Other details of antiperspirant composition)
The viscosity at 25 ° C. of the antiperspirant composition of the present invention is preferably 10 mPa · s or more, more preferably 50 mPa · s or more, preferably 5000 mPa · s or less, more preferably 3000 mPa · s or less. When the viscosity is not less than the above lower limit and not more than the above upper limit, dripping at the time of application can be suppressed, and dischargeability from the container and applicability can be improved. Moreover, when the said viscosity is more than the said minimum and below the said upper limit, when the said antiperspirant composition is used as a roll-on type antiperspirant, applicability | paintability can be made favorable.

  The viscosity is measured using a B-type viscometer, (1) using an L adapter, conditions of 25 ° C. and a rotational speed of 12 rpm, (2) rotor No. 2 at 25 ° C. and a rotational speed of 30 rpm, or (3) rotor no. 3 is measured under conditions of 25 ° C. and a rotation speed of 30 rpm. As the B type viscometer, for example, a TV-25 type viscometer manufactured by Toki Sangyo Co., Ltd. can be used.

  The antiperspirant composition of the present invention can be produced by a known and commonly used method for producing an antiperspirant composition. The antiperspirant composition of the present invention includes, for example, component (A), component (B), component (C), component (D), component (E), and other ingredients as necessary It can manufacture by mixing these components. As an example of a preferable production method, for example, after adding the component (E) to a mixed solution obtained by mixing the component (A), the component (C), and the component (D) with a disper mixer, the component (B ) And other components to be blended as necessary, and further a mixing and stirring method using a disper mixer or the like. In this production method, the addition timing of each component may be appropriately changed. Moreover, the addition time of said other component is suitably selected according to the kind of other component.

[Antiperspirant]
The antiperspirant of the present invention comprises a container and the above-described antiperspirant composition. In the antiperspirant, the container is filled with the antiperspirant composition. In the antiperspirant of the present invention, the container is preferably a roll-on container. The antiperspirant of the present invention is suitably used as a roll-on type antiperspirant.

  The roll-on container includes a roll in the application unit. The roll may be a cylindrical member or a spherical member.

  The roll-on type antiperspirant can directly and uniformly apply the antiperspirant composition to the application object without applying the antiperspirant composition to the application object such as the skin. That is, the roll-on type antiperspirant is excellent in applicability. With the roll-on type antiperspirant, for example, the antiperspirant composition in the roll-on container can be directly applied directly to skin such as wrinkles.

  The antiperspirant composition of the present invention is suitably used not only as the roll-on type antiperspirant described above but also as an antiperspirant such as a stick type, a sheet type, a gel type, a lotion type, and a spray type. be able to. In this case, the antiperspirant composition is filled into a container suitable for use as each type of antiperspirant.

  Hereinafter, the relationship between the configuration of the present invention and the effects of the present invention will be described in more detail.

  In the conventional antiperspirant composition which does not contain component (C), component (D), or both component (C) and component (D), the antiperspirant effect is not sufficient, or the antiperspirant is caused by sweat or the like. The effect of preventing body odor may decrease due to the composition flowing down or the like. Furthermore, when a hydrophilic thickener such as hydroxypropylcellulose is simply blended in the antiperspirant composition, the antiperspirant composition is likely to flow off due to sweat or the like, and the sustainability of the body odor prevention effect is increased. It is difficult.

  On the other hand, in the antiperspirant composition of the present invention, since the component (C) and the component (D) are used in combination, a good film is formed on the applied portion, and appropriate hydrophobicity is obtained. Is granted. As a result, the water resistance is increased, and the antiperspirant composition can be prevented from flowing down due to sweat or the like, and the adhesion to the skin can be enhanced. Therefore, the combined use of the component (C) and the component (D) is excellent in the antiperspirant effect and adhesion to the skin, and can enhance the sustainability of the body odor preventing effect. Furthermore, in this invention, by using together with a component (C) and a component (D), it drips from the skin at the time of application | coating, and the feeling of stickiness or a feeling of skin tightness after application | coating and after application | coating It has been found that discomfort can be suppressed. The configuration in which the component (C) and the component (D) are used in combination is an important and technically significant configuration.

  Hereinafter, the present invention will be specifically described with reference to Examples and Comparative Examples. The present invention is not limited only to the following examples.

  In the examples and comparative examples, the following components were used.

(Ingredient (A))
ethanol

(Ingredient (B))
Chlorhydroxyaluminum zinc paraphenol sulfonate

(Ingredient (C))
Stearoxyhydroxypropyl methylcellulose (“Sangelose 60M” manufactured by Daido Kasei Kogyo Co., Ltd.)

(Component not corresponding to component (C))
Hydroxypropyl cellulose

(Component (D) (Component (D1)))
Alkyl acrylate copolymer AMP (Osaka Organic Chemical Co., Ltd. “Aniset HPA40”)
(Octylacrylamide / hydroxypropyl acrylate / butylaminoethyl methacrylate) copolymer (“AMPHOMER 28-4910” manufactured by Akzo Nobel)
(Alkyl acrylate / octylacrylamide) copolymer (AkzoNobel "AMPHOMER HC")
(Acrylates / alkyl acrylate (C1-18) / alkyl (C1-8) acrylamide) copolymer AMP (“Purasize L-9909U” manufactured by Kyoyo Chemical Co., Ltd.)

(Ingredient (E))
purified water

(Component (F) (Component (F1)))
Isopropyl myristate Isopropyl palmitate 2-ethylhexyl palmitate 2-ethylhexyl stearate 2-octyldodecyl myristate triglyceryl 2-ethylhexanoate

(Other)
Isopropyl methylphenol menthol

(Examples 1-13 and Comparative Examples 1-4)
The composition components shown in the following Tables 1 and 2 were blended (the blending unit was mass%) to prepare antiperspirant compositions having the compositions shown in Tables 1 and 2 below. The obtained antiperspirant composition was filled into a roll-on container to produce an antiperspirant. The compounding amount in the table (the compounding amount in 100% by mass of the antiperspirant composition) is represented by the compounding amount of pure component (unit: mass%).

(Evaluation)
The following test examples 1, 2, and 4 were performed by three evaluation panels, and the results determined through discussion were used as the evaluation results. Moreover, the following test example 3 was performed by three test subjects, and the average value of the results of the three subjects was used as the evaluation result.

(Test Example 1: Discomfort during and after application)
Using the obtained antiperspirant (roll-on type antiperspirant), the antiperspirant composition was directly applied to the armpits and dried. Sensory evaluation of the discomfort at the time of application and after application was performed according to the following criteria.

<Evaluation criteria for discomfort during and after application>
○ (Good): No dripping from the skin during application, no stickiness after application and no feeling of skin firmness △ (Slightly good): No dripping from the skin during application, but after application A feeling of stickiness and a slight feeling of skin tightness x (defect): There is no dripping from the skin at the time of application, or there is no dripping from the skin at the time of application, but a sticky feeling after application or a feeling of skin tightness Feel

(Test Example 2: Adhesion to skin (water resistance))
After applying 40 μL of the obtained antiperspirant composition in a 1 cm ² circular shape on the skin on the inner side of the forearm, it was dried at room temperature (about 25 ° C.) for 5 minutes to form a film on the skin. It was then rinsed with water at about 35 ° C. for 1 minute. The adhesion (water resistance) of the antiperspirant composition to the skin was visually evaluated according to the following criteria.

<Evaluation criteria for adhesion to skin (water resistance)>
○ (Good): Excellent adhesion to the skin (the water resistance (residence) of the film is good, and no film runs off)
Δ (slightly good): Slightly inferior in adhesion to the skin (slightly inferior in water resistance (remaining property) of the film, and slight film flow is observed)
X (Bad): Inferior to the skin (inferior to the water resistance (residual property) of the film, and all the film is washed away)

(Test Example 3: Antiperspirant effect)
Under an environment of temperature: about 30 ° C. and humidity: about 50%, 20 μL of the obtained antiperspirant composition was applied in a circular shape of 1 cm ² on the skin on the outer side of the forearm. Next, in the above environment, the lower limbs were warmed in warm water of about 42 ° C. to promote sweating. Next, using a perspiration meter (device name: SKN-2000, manufactured by Nishizawa Denki Keiki Seisakusho Co., Ltd.), the location where the antiperspirant composition was applied during a period in which the amount of perspiration was stable for 10 minutes (sample application portion), And the average sweating amount (mg / min) of the part (sample non-application part) which has not applied the sample adjacent to this sample application part was measured, and the sweating suppression rate was computed from the following formula. Antiperspirant effect was evaluated according to the following criteria.

  Sweating inhibition rate (%) = 100 − [(average sweating amount of sample application portion / average sweating amount of sample non-application portion) × 100]

<Evaluation criteria for antiperspirant effect>
○ (Good): Sweating suppression rate is 70% or more △ (Slightly good): Sweating suppression rate is 40% or more and less than 70% × (Poor): Sweating suppression rate is less than 40%

(Test Example 4: Persistence of body odor prevention effect)
Using the obtained antiperspirant (roll-on type antiperspirant), the antiperspirant composition was directly applied to the armpits and dried, and the body odor prevention effect immediately after application was sensorially evaluated. Subsequently, it was allowed to stand for 3 hours, and the body odor prevention effect after 3 hours of application was subjected to sensory evaluation. Sensory evaluation was carried out based on the following criteria for the sustainability of the body odor prevention effect.

<Evaluation criteria for sustainability of body odor prevention effect>
○ (Good): The body odor prevention effect after 3 hours of application is equivalent to the body odor prevention effect immediately after application. Δ (Slightly good): The body odor prevention effect immediately after application is 3 hours after application. Body odor prevention effect is slightly inferior × (Bad): Body odor prevention effect after 3 hours of application is clearly inferior compared with body odor prevention effect immediately after application

(Test Example 5: Comprehensive judgment)
Comprehensive determination was determined according to the following criteria from the determination results of the four evaluation items in Test Examples 1 to 4.

[Criteria for comprehensive judgment]
○○: Judgment of 3 or more evaluation items is ○
○: Judgment of two evaluation items is ○
△: Evaluation of one evaluation item is ○
×: There is no ○ in judgment of all evaluation items

  The compositions and results are shown in Tables 1-2 below.

  From the results of Tables 1 and 2, the antiperspirant composition of the present invention can suppress discomfort at the time of application and after application, has excellent antiperspirant effect and adhesion to the skin after application, and has an effect of preventing body odor. It turns out that it is excellent in sustainability.

  On the other hand, it can be seen that an antiperspirant composition lacking any one of the components (B) to (D) is inferior to the effect of the present invention compared to the antiperspirant composition of the present invention.

  In addition, in the evaluation of “Test Example 2: Adhesion to the skin (water resistance)” in Example 3 and Example 13, results that are both good are obtained. However, in the antiperspirant composition obtained in Example 3, even though the washout time exceeded 1 minute, no film flow was observed, whereas the antiperspirant obtained in Example 13 In the composition, when the wash-out time exceeded 1 minute, a slight film flow-out was observed. Therefore, the antiperspirant composition obtained in Example 3 in which the component (F) is blended is compared with the antiperspirant composition obtained in Example 13 in which the component (F) is not blended. It was even better due to its adhesion to the surface.

Claims (9)

An antiperspirant composition comprising the following component A, the following component B, the following component C, the following component D, and the following component E.
Component A: Ethanol Component B: Antiperspirant component Component C: Hydrophobized hydroxyalkyl cellulose Component D: Acrylic acid type film-forming polymer Component E: Water The content of the component C is 0.4% by mass or more and 1.5% by mass or less,
The antiperspirant composition according to claim 1, wherein a mass ratio of the content of the component D to the content of the component C is 0.1 or more and less than 0.6. The antiperspirant composition according to claim 1 or 2, wherein the component D includes the following component D1.
Component D1: alkyl acrylate copolymer, (octylacrylamide / hydroxypropyl acrylate / butylaminoethyl methacrylate) copolymer, (alkyl acrylate / octylacrylamide) copolymer, (acrylates / alkyl acrylate (C1-18) / alkyl (C1 -8) Acrylic acid type film-forming polymer selected from the group consisting of acrylamide) copolymers and salts thereof The antiperspirant composition according to any one of claims 1 to 3, comprising the following component F.
Component F: fatty acid ester oil   The antiperspirant composition according to claim 4, wherein a content of the component F is 0.01% by mass or more and 2.0% by mass or less. The antiperspirant composition according to claim 4 or 5, wherein the component F comprises the following component F1.
Component F1: Fatty acid ester oil selected from the group consisting of isopropyl myristate, isopropyl palmitate, 2-ethylhexyl palmitate, 2-ethylhexyl stearate, 2-octyldodecyl myristate, and glyceryl tri-2-ethylhexanoate   The antiperspirant composition according to any one of claims 1 to 6, which does not contain a nonionic surfactant or contains less than 0.1% by mass of a nonionic surfactant. A container,
An antiperspirant composition according to any one of claims 1 to 7,
An antiperspirant, wherein the container is filled with the antiperspirant composition.   The antiperspirant according to claim 8, wherein the container is a roll-on container.