JP6644416B2 - Composition for suppressing body odor - Google Patents

Description

  The present invention relates to a composition for suppressing body odor.

  Antiperspirant deodorants are used as cosmetics to control the stickiness and odor of sebum and sweat. The mainstream of such antiperspirant deodorants is an aerosol type filled with a propellant, from the viewpoint of being able to spray-coat uniformly without unevenness. However, since the aerosol type is discharged in the form of a mist, there is a problem in that the content liquid is easily scattered and the bronchus such as throat and coughing is adversely affected. There is also a problem that spraying near the skin may cause frostbite in order to suppress the scattering of the content liquid.

  In order to solve such a problem, attempts have been made to apply the composition directly to the skin, such as a cream, a wax, or a stick, in a dosage form that does not scatter during application. Specifically, an anhydrous antiperspirant rod-shaped composition containing a particulate antiperspirant active substance, a solid suspending agent, a volatile silicone and a nonvolatile silicone (see, for example, Patent Document 1); Antiperspirant deodorant stick composition containing a solidifying agent and an unsaturated fatty acid (see, for example, Patent Document 2); a non-aqueous antiperspirant deodorant stick containing an antiperspirant or deodorant, a higher alcohol, polypropylene glycol and a volatile oil Non-aqueous antiperspirant compositions containing water-soluble aluminum compounds, (dimethicone / phenylvinyl dimethicone) crosspolymers, and certain anionic and / or amphoteric polymers (eg, see US Pat. And Patent Document 4).

  However, although these attempts can solve various problems in the aerosol formulation, a large amount of oil is contained in the formulation that does not scatter during application, so that stickiness tends to occur during application. There is a problem that the skin feel is poor. For this reason, attempts have been made to blend powder into a cream-like, wax-like, or stick-like dosage form in order to enhance the usability. In addition, by blending the powder, it becomes possible to exhibit an additional function of concealing darkening and dirt of pores such as underarms and fascinating the skin beautifully.

  On the other hand, the present inventors have found that activated carbon has an extremely excellent deodorizing function as compared with conventionally generally known deodorizing components such as zinc oxide, and furthermore, activated carbon stains the application target black. By solving the drawbacks, a body odor suppressing composition containing titanium oxide-coated activated carbon and having excellent body odor suppressing effect and practical characteristics was completed (see Patent Document 5).

JP-T-2003-533457 JP 2005-187470 A JP 2007-314527 A JP 2014-015421 A International Publication No. WO 2014/088039

  However, in particular, when the composition for body odor control containing the titanium oxide-coated activated carbon is in the form of a cream, a wax, or a stick, the composition for body odor control spreads uniformly when applied to the skin (so-called, However, there is a problem that a phenomenon (so-called powder floating) that powder residue remains on the skin after the composition for body odor control applied to the skin is dried is dried. Therefore, it has been a problem to improve these and obtain a composition for suppressing body odor with higher quality.

  Accordingly, an object of the present invention is to further improve the quality of a body odor suppressing composition containing titanium oxide-coated activated carbon and having an excellent body odor suppressing effect, to have excellent spreadability when applied to the skin, and to improve the powder after application. An object of the present invention is to provide a composition for suppressing body odor, which reduces floating and gives a smooth skin without stickiness.

That is, the present invention
[1] A composition for suppressing body odor, comprising the following component (A), the following component (B), and the following component (C):
Component (A): activated carbon coated with titanium oxide containing activated carbon and titanium oxide present on the surface of the activated carbon Component (B): one or more selected from the group of polyether-modified silicone and polyglycerin-modified silicone Modified silicone Component (C): higher alcohol solid at room temperature [2] In component (A), the activated carbon has an average particle size of 15 to 50 μm, and the titanium oxide has an average particle size of 0.01 to 0. The composition for suppressing body odor according to the above [1], which has a size of 0.5 μm.
[3] The composition for suppressing body odor according to [1] or [2], wherein the component (A) has a mass ratio of the titanium oxide of 500 to 1500 parts by mass with respect to 100 parts by mass of the activated carbon.
[4] The composition for suppressing body odor according to any one of the above [1] to [3], which comprises the following component (D):
Component (D): (Dimethicone / vinyl dimethicone) crosspolymer [5] The composition for suppressing body odor according to any one of [1] to [4], which comprises the following component (E). ,
Component (E): an oil agent which is solid at room temperature other than the component (C) [6] contains the following component (F) and / or the following component (G); The composition for suppressing body odor according to any one of the above,
Component (F): Fungicide Component (G): Antiperspirant [7] The following component (H) is not contained or contains the following component (H) and is contained in 100% by mass of the composition for suppressing body odor ( The composition for suppressing body odor according to any one of the above [1] to [6], wherein the content of H) is 50% by mass or less,
Component (H): Water [8] The composition for suppressing body odor according to any one of [1] to [7], which is in the form of a stick,
[9] A stick product for suppressing body odor, comprising: a stick-only container; and the stick-like body odor suppression composition according to [8], which is fixed in the stick-only container.

  The body odor suppressing composition of the present invention has an excellent body odor suppressing effect by containing titanium oxide-coated activated carbon. In addition, the composition for suppressing body odor of the present invention, by having the above-described configuration, can be uniformly stretched and spread when applied to the skin, improving spreadability, suppressing stickiness, and providing a smooth skin condition. it can. Further, powder floating after application can be reduced, and practicability is improved. Therefore, according to the present invention, the quality of the body odor suppressing composition containing the titanium oxide-coated activated carbon can be further improved.

The composition for suppressing body odor of the present invention is characterized by containing the following component (A), the following component (B), and the following component (C).
Component (A): activated carbon coated with titanium oxide containing activated carbon and titanium oxide present on the surface of the activated carbon Component (B): one or more selected from the group of polyether-modified silicone and polyglycerin-modified silicone Modified silicone Component (C): higher alcohol solid at room temperature

[Component (A): activated carbon coated with titanium oxide]
The component (A) used is a titanium oxide-coated activated carbon containing activated carbon and titanium oxide present on the surface of the activated carbon. More specifically, it is a composite having a structure in which titanium oxide is present on the surface of activated carbon. These components (A) may be used alone or in an appropriate combination of two or more.

  That is, the activated carbon coated with titanium oxide of the present invention contains at least activated carbon and titanium oxide present on the surface of the activated carbon. The activated carbon coated with titanium oxide may include components other than activated carbon and titanium oxide. Activated carbon, titanium oxide, and components other than activated carbon and titanium oxide may be used alone or in combination of two or more.

  The activated carbon is not particularly limited, but is a porous carbonaceous material. Activated carbon may contain hydrogen, oxygen, inorganic components, etc. other than carbon. Activated carbon is not particularly limited, but powdered activated carbon is preferred.

  The raw material of the activated carbon is not particularly limited, and those generally used as the raw material of the activated carbon can be used. Specifically, for example, coconut shell, wood, sawdust, coal, phenolic resin, rayon, acrylonitrile, coal pitch, petroleum pitch and the like can be mentioned. Among them, coconut shell, wood, phenol resin, and coal are preferred.

  The average particle size (average particle size) of the activated carbon is preferably 15 to 50 μm, more preferably 18 to 45 μm, and further preferably 20 to 42 μm. When the average particle size of the activated carbon is within the above range, the activated carbon coated with titanium oxide becomes white, so that when the composition for body odor suppression of the present invention is applied, the skin or the like to be applied is stained black (hereinafter, referred to as This may be referred to as “application dirt”, and the body odor suppressing effect is excellent.

  When the average particle size is less than 15 μm, the activated carbon coated with titanium oxide becomes gray to black, and coating stains easily occur. When a large amount of titanium oxide is coated and whitened, the adsorbing ability is reduced. Can not be compatible. On the other hand, when the average particle size exceeds 50 μm, the composition for body odor suppression is rough when applied to the skin, and the feeling of use is reduced.

  The “average particle size of the activated carbon” means the average particle size of the entire activated carbon constituting the titanium oxide-coated activated carbon. In this specification, the average particle size of activated carbon can be measured by a laser diffraction / scattering method, for example, by a laser diffraction / scattering type particle size analyzer “MT3300” (manufactured by Nikkiso Co., Ltd.). .

  The central pore diameter of the activated carbon is not particularly limited, but is preferably 0.1 to 10 nm, more preferably 0.5 to 2.0 nm, from the viewpoint of improving the adsorption ability of the titanium oxide-coated activated carbon and improving the body odor suppressing effect. It is. The center pore diameter of the activated carbon is not particularly limited, but can be measured by, for example, the BET method, and can be measured by, for example, a pore distribution measuring device “Belsorp” (manufactured by Nippon Bell Co., Ltd.).

  The iodine adsorption amount of the activated carbon is not particularly limited, but is preferably 100 to 3000 mg / g, more preferably 500 to 2000 mg / g, from the viewpoint of improving the adsorption ability of the titanium oxide-coated activated carbon and improving the body odor suppressing effect. . In this specification, the iodine adsorption amount of activated carbon can be measured by a titration method (JIS K1417).

  The activated carbon can be manufactured by a known manufacturing method. For example, it can be manufactured by a known method of pulverizing and classifying activated carbon. Moreover, a commercial item can also be used for activated carbon. Examples of commercially available products include, but are not particularly limited to, "Taiko A" (manufactured by Futamura Chemical Co., Ltd.) and the like.

  The titanium oxide is not particularly limited, and known titanium oxide (titanium dioxide) can be used. Although it does not specifically limit as said titanium oxide, For example, a rutile type, an anatase type, and a brookite type titanium oxide are mentioned.

  The average particle size of the titanium oxide is not particularly limited, but is preferably 0.001 to 1.0 μm, more preferably 0.01 to 0.5 μm, more preferably 0.1 to 0.4 μm, and still more preferably 0 to 0.4 μm. 0.2 to 0.3 μm. When the average particle diameter of the titanium oxide is within the above range, the effect of whitening the titanium oxide-coated activated carbon is improved, and the effect of preventing the application smear of the composition for suppressing sticky odor of the present invention is improved. preferable. When the average particle size is less than 0.001 μm, the titanium oxide-coated activated carbon has a color tone in a range from gray to black, which may cause coating stains and reduce the practical suitability of the body odor suppressant.

  The “average particle size of the titanium oxide” means the average particle size of the entire titanium oxide constituting the titanium oxide-coated activated carbon. Further, in the present specification, the average particle size (sphere equivalent diameter) of titanium oxide can be calculated from the specific surface area measured by the BET method (or the simple BET method).

  Commercial products can be used as the titanium oxide. Examples of commercially available products include, but are not particularly limited to, “Taipaek CR-50” (manufactured by Ishihara Sangyo Co., Ltd.), “MT-700B” (manufactured by Teika Co., Ltd.), and the like.

  The activated carbon coated with titanium oxide may include a resin. The resin is not particularly limited, but is used as a binder resin. Examples of the resin include, but are not particularly limited to, polyester resin, acrylic resin, urethane resin, vinyl acetate resin, ethylene-vinyl acetate resin, epoxy resin, silicone resin, polystyrene resin, and cellulose resin. Among them, an acrylic resin (particularly, an aqueous acrylic resin) is preferable, and examples thereof include an alkyl acrylate copolymer. The activated carbon coated with titanium oxide is not particularly limited, but may contain a metal salt or the like.

  In the titanium oxide-coated activated carbon, the mass ratio of titanium oxide to 100 parts by mass of activated carbon is not particularly limited, but is preferably 10 to 10000 parts by mass, more preferably 100 to 5000 parts by mass, more preferably 500 to 2,000 parts by mass, More preferably, it is 500 to 1500 parts by mass, more preferably 550 to 1050 parts by mass, and still more preferably 600 to 1000 parts by mass.

  That is, [activated carbon: titanium oxide] (mass ratio) is preferably 1: 0.1 to 1: 100, more preferably 1: 1 to 1:50, more preferably 1: 5 to 1:20, and more preferably. Is from 1: 5 to 1:15, more preferably from 1: 5.5 to 1: 10.5, and still more preferably from 1: 6 to 1:10. When the mass ratio of titanium oxide to activated carbon is smaller than the above range (the amount of titanium oxide is small), the titanium oxide-coated activated carbon has a color tone in a range from gray to black, and coating stains occur, reducing the practical suitability of the body odor suppressant. There are cases. On the other hand, when the mass ratio of titanium oxide to activated carbon is larger than the above range (there is a large amount of titanium oxide), the adsorption ability of titanium oxide-coated activated carbon is reduced, and the body odor suppressing effect of the body odor suppressing composition of the present invention is reduced. May be.

  The total amount of the activated carbon content and the titanium oxide content in the titanium oxide-coated activated carbon is not particularly limited, but is 50% by mass or more (50 to 100% by mass) with respect to 100% by mass of the titanium oxide-coated activated carbon. It is preferably at least 70% by mass, more preferably at least 80% by mass. The upper limit is not particularly limited, and is preferably 100% by mass or less, more preferably 99.95% by mass or less. It may be 90% by mass or less, or may be 85% by mass or less.

  The content of the resin in the titanium oxide-coated activated carbon is not particularly limited, but from the viewpoint of improving the adhesion of titanium oxide to the activated carbon and the like, 0.005 to 10% by mass relative to 100% by mass of the titanium oxide-coated activated carbon. Is more preferable, and more preferably 0.05 to 1% by mass.

  In the titanium oxide-coated activated carbon, the titanium oxide exists on the surface of the activated carbon. That is, activated carbon coated with titanium oxide has a structure in which activated carbon is coated with titanium oxide. In the activated carbon coated with titanium oxide, the entire surface of the activated carbon may be coated with titanium oxide, or only a part of the surface of the activated carbon may be coated with titanium oxide.

  The activated carbon coated with titanium oxide is formed by adhering titanium oxide on the surface of activated carbon. Preferably, it is formed by adhering titanium oxide on the surface of activated carbon via the above resin.

  The method for producing the titanium oxide-coated activated carbon is not particularly limited, and a known method can be used. For example, a method for producing white activated carbon described in JP-A-4-256436, JP-A-2005-263610 The method for producing activated carbon coated with titanium oxide described in the gazette can be used.

  A specific method for producing titanium oxide-coated activated carbon is, for example, as follows. Activated carbon, titanium oxide, and an emulsion of the above resin are mixed, and the surface of the activated carbon is coated with titanium oxide. Next, the obtained activated carbon coated with titanium oxide is dried and, if necessary, crushed into granules to obtain titanium oxide-coated activated carbon.

  The content of the component (A) is usually preferably 0.1 to 5% by mass in the body odor suppressing composition of the present invention, from the viewpoint of suppressing the smell of sebum and sweat to make the skin smooth. , More preferably 0.2 to 3% by mass. The content of the component (A) is the total content of all the components (A) in the body odor suppressing composition of the present invention.

[Component (B): modified silicone]
The component (B) used is one or more modified silicones selected from the group consisting of polyether-modified silicone and polyglycerin-modified silicone. In the present specification, the above “polyether-modified silicone” may be referred to as “component (B1)”. Further, the above “polyglycerin-modified silicone” may be referred to as “component (B2)” in some cases. In the present invention, by using the component (B), specifically, by using one or more selected from the group of the component (B1) and the component (B2), the spreadability when applied to the skin is used. And the floating of the powder of the component (A) on the skin can be reduced.

  Specific examples of the component (B1) include, for example, PEG-3 dimethicone, PEG-10 dimethicone, PEG-12 dimethicone, PEG-9 methyl ether dimethicone, PEG-11 methyl ether dimethicone, PEG-32 methyl ether dimethicone, and the like. Polyoxyethylene / methylpolysiloxane copolymers; such as PEG / PPG-19 / 19 dimethicone, PEG / PPG-20 / 20 dimethicone, PEG / PPG-30 / 10 dimethicone, and PEG / PPG-20 / 22 butyl ether dimethicone (Oxyethylene / oxypropylene) methylpolysiloxane copolymer and the like.

  Specific examples of the component (B2) include polyglyceryl-3 disiloxane dimethicone, polyglyceryl-3 polydimethylsiloxyethyl dimethicone, and lauryl polyglyceryl-3 polydimethylsiloxyethyl dimethicone.

  As the component (B), a commercially available product can be used as it is. Examples of commercially available products of the component (B1) include “KF-6015” (PEG-3 dimethicone, manufactured by Shin-Etsu Chemical Co., Ltd.), “KF-6017” (PEG-10 dimethicone, manufactured by Shin-Etsu Chemical Co., Ltd.), “ "SH3773M", "SH3775M" (PEG-12 dimethicone, both manufactured by Dow Corning Toray), "KF-6016" (PEG-9 methyl ether dimethicone, manufactured by Shin-Etsu Chemical Co., Ltd.), "KF-6011" (PEG- 11Methyl ether dimethicone, Shin-Etsu Chemical Co., Ltd.), "KF-6004" (PEG-32 methyl ether dimethicone, Shin-Etsu Chemical Co., Ltd.), "BY11-030" (PEG / PPG-19 / 19 dimethicone, Toray Dow) Corning), "SH3749FLUID" (PEG / PPG-20 / 20 Dimethicone, Dow Corning Toray) "BY25-339" (PEG / PPG-30 / 10 dimethicone, manufactured by Dow Corning Toray), "KF-6012" (PEG / PPG-20 / 22 butyl ether dimethicone, manufactured by Shin-Etsu Chemical Co., Ltd.) And the like.

  Examples of commercially available products of the component (B2) include “KF-6100” (polyglyceryl-3 disiloxane dimethicone, manufactured by Shin-Etsu Chemical Co., Ltd.), “KF-6104”, and “KF-6106” (polyglyceryl-3 polydimethyl). Siloxyethyl dimethicone, all manufactured by Shin-Etsu Chemical Co., Ltd.) and "KF-6105" (lauryl polyglyceryl-3 polydimethylsiloxyethyl dimethicone, manufactured by Shin-Etsu Chemical Co., Ltd.).

  Among the above components (B), it is more preferable to use polyglycerin-modified silicone (component (B2)) from the viewpoint of further reducing powder floating on the skin, and among the components (B2), polyglyceryl-3 poly is preferred. It is particularly preferred to use dimethylsiloxyethyl dimethicone.

  The content of the component (B) is usually from 0.1 to less in the composition for suppressing body odor of the present invention from the viewpoint of reducing powder floating on the skin and from the viewpoint of suppressing stickiness to make the skin smooth. It is preferably 20% by mass, more preferably 0.5 to 10% by mass. The content of the component (B) is the total content of all the components (B) in the body odor suppressing composition of the present invention.

[Component (C): higher alcohol solid at room temperature]
The component (C) used is a higher alcohol which is solid at room temperature. The higher alcohol that is solid at room temperature refers to a higher alcohol that exhibits a solid state at 1 to 30 ° C. and does not exhibit fluidity. By using the component (C) in the present invention, it is possible to prepare the composition into a dosage form such as a cream, a wax, and a stick that does not scatter during application. These components (C) may be used alone or in an appropriate combination of two or more.

  The component (C) is not particularly limited as long as it is a higher alcohol that is solid and does not exhibit fluidity, and examples thereof include myristyl alcohol, cetyl alcohol, stearyl alcohol, and behenyl alcohol. Among them, it is preferable to use stearyl alcohol from the viewpoint of enhancing spreadability at the time of application and suppressing unevenness on the skin.

  The content of the component (C) is usually 0.1 to 0.1 in the composition for suppressing body odor of the present invention from the viewpoint of formulation and from the viewpoint of enhancing spreadability at the time of application and suppressing unevenness on the skin. The content is preferably 40% by mass, more preferably 10 to 30% by mass. The content of the component (C) is the total content of all the components (C) in the body odor suppressing composition of the present invention.

[Component (D): (Dimethicone / vinyl dimethicone) crosspolymer]
The component (D) used is a (dimethicone / vinyl dimethicone) crosspolymer. The use of the component (D) in the present invention makes it possible to further reduce powder floating on the skin.

  The (Dimethicone / vinyl dimethicone) crosspolymer of the above component (D) is an INCI name (International Cosmetic Ingredient Dictionary and Handbook, 15th Edition, Volume 1, Personal Care Products, 2010, 2010, 1074, 2014). DIMETHICONE / VINYL DIMETHICONE CROSSPOLYMER, also referred to as cross-linked methylpolysiloxane. These components (D) may be used alone or in an appropriate combination of two or more.

  As the component (D), a commercially available product can be used as it is. Specifically, for example, "KSG-15", "KSG-16", "KSG-1610" (all manufactured by Shin-Etsu Chemical Co., Ltd.), "BY29-129" (manufactured by Dow Corning Toray) and the like are listed. Can be

  In general, the content of the component (D) is preferably 0.1 to 20% by mass, more preferably 0.1 to 20% by mass, in the composition for suppressing body odor of the present invention, from the viewpoint of further reducing powder floating on the skin. Is 0.5 to 10% by mass. The content of the component (D) is the total content of all the components (D) in the composition for suppressing body odor of the present invention.

[Component (E): oil at room temperature other than component (C)]
The component (E) used is a solid oil at room temperature other than the component (C). The oil agent which is solid at room temperature refers to an oil other than the component (C) which exhibits a solid state at 1 to 30 ° C. and does not exhibit fluidity. By using the component (C) in the present invention, the spreadability at the time of application can be further enhanced, and unevenness on the skin can be suppressed. In addition, the floating of powder on the skin can be further reduced.

  The component (E) is not particularly limited, and examples thereof include solid fats and oils at room temperature, hydrocarbon oils that are solid at room temperature, waxes that are solid at room temperature, and fatty acid ester oils that are solid at room temperature. . These components (E) may be used alone or in an appropriate combination of two or more.

  The oils and fats that are solid at room temperature are not particularly limited, and include, for example, coconut oil, shea butter, hardened oil, hardened castor oil and the like.

  The hydrocarbon oil that is solid at room temperature is not particularly limited, and examples thereof include paraffin wax, microcrystalline wax, ceresin, and polyethylene wax.

  Examples of the wax which is solid at room temperature include, but are not particularly limited to, carnauba wax, candelilla wax, beeswax, rice bran wax, lanolin, shellac and the like.

  The fatty acid ester oil which is solid at room temperature is not particularly limited, and includes, for example, myristyl myristate, cetyl myristate, cetyl palmitate, stearyl stearate and the like.

  Among the above-mentioned components (E), from the viewpoint of further increasing the spreadability at the time of application to suppress unevenness on the skin and further reducing powder floating on the skin, solid oils and fats at room temperature, It is preferable to use a solid fatty acid ester oil at room temperature, and it is more preferable to use a solid fat at room temperature. In the present invention, among the oils and fats which are solid at room temperature, it is particularly preferable to use shea butter and hydrogenated castor oil from the viewpoint of maximizing the effects of the present invention and improving the usability.

  The content of the component (E) is usually 0.1 to 0.1 in the composition for suppressing body odor of the present invention from the viewpoint of suppressing unevenness on the skin and further reducing the floating of powder on the skin. The content is preferably 20% by mass, more preferably 0.5 to 15% by mass. The content of the component (E) is the total content of all the components (E) in the composition for suppressing body odor of the present invention.

[Component (F): fungicide]
Component (F) used is a bactericide. A bactericide is, for example, a drug that suppresses the growth of indigenous skin bacteria that produce substances that cause body odor.

  The component (F) is not particularly restricted but includes, for example, benzalkonium chloride, benzethonium chloride, chlorhexidine hydrochloride, phenol, trichlorocarbanilide, chlorhexidine gluconate, isopropylmethylphenol, triclosan, triclocarban, piroctone olamine. , Zinc pyrithione, salicylic acid, sorbic acid, lysozyme chloride and the like. These components (F) may be used alone or in an appropriate combination of two or more.

  The content of the component (F) is usually preferably 0.01 to 1% by mass, more preferably 0.05 to 0% by mass in the body odor suppressing composition of the present invention, from the viewpoint of exhibiting a bactericidal effect. 0.5% by mass. The content of the component (F) is the total content of all the components (F) in the composition for suppressing body odor of the present invention.

[Component (G): antiperspirant]
The component (G) used is an antiperspirant. Antiperspirants are, for example, agents that suppress the generation of sweat by converging the skin. Examples of the component (G) include an aluminum compound, a zinc compound, a zirconium compound, and a composite compound of aluminum and zirconium. These components (G) may be used alone or in an appropriate combination of two or more. In the present invention, a composite compound of aluminum and zirconium may be used.

  Examples of the aluminum compound include, but are not particularly limited to, aluminum chloride, aluminum potassium sulfate, aluminum sulfate, aluminum acetate, chlorohydroxyaluminum, allantochlorohydroxyaluminum, aluminum phenolsulfonate, acrylic resin-coated aluminum powder, allantoindihydroxyaluminum, Aluminum powder, aluminum isostearate, corn starch aluminum octenyl succinate, aluminum sulfate silicate, aluminum magnesium silicate, aluminum oxide, aluminum dimyristate, aluminum hydroxide, aluminum stearate, aluminum silicate, aluminum myristate, aluminum sulfate Ammonium, dicetyl aluminum phosphate And the like.

  The zinc compound is not particularly limited, for example, zinc paraphenol sulfonate, zinc sulfate, zinc oxide, zinc chloride, zinc carbonate, zinc gluconate, zinc stearate, zinc undecylenate, zinc palmitate, zinc pyrithione, Zinc myristate, zinc laurate and the like.

  The zirconium compound is not particularly limited, and examples thereof include chlorohydroxyzirconium and zirconium oxide.

  The composite compound of aluminum and zirconium is not particularly limited, for example, aluminum zirconium trichlorohydrate, aluminum zirconium tetrachlorohydrate, aluminum zirconium pentachlorohydrate, aluminum zirconium octachlorohydrate, aluminum zirconium tetrachlorohydrate Rex glycine and the like.

  The content of the component (G) is usually preferably 1 to 40% by mass, more preferably 5 to 25% by mass in the body odor suppressing composition of the present invention from the viewpoint of exerting an antiperspirant effect. is there. The content of the component (G) is the total content of all the components (G) in the body odor suppressing composition of the present invention.

[Component (H): water]
In the composition for suppressing body odor of the present invention, from the viewpoint of formulation, the composition does not contain water as the component (H) or contains water as the component (H) and is contained in 100% by mass of the composition for body odor suppression. The content of the component (H) is preferably 50% by mass or less, more preferably 40% by mass or less.

  In the present invention, when a solid dosage form such as a stick form described below is used, it is preferable that the composition does not contain the component (H). On the other hand, when a dosage form such as a cream or a wax described below is used, the composition preferably contains the component (H).

[Other ingredients]
The composition for suppressing body odor of the present invention may contain components (other components) other than the above components (A) to (H). Other components include, for example, surfactants, polyhydric alcohols, fatty acid ester oils liquid at room temperature, sterols, humectants, thickeners, powders, pH adjusters, inorganic pigments, dyes, antioxidants, Examples include ultraviolet absorbers, vitamins, whitening agents, plant and animal extracts, sequestering agents, preservatives, fresheners, and fragrances.

  The surfactant is not particularly limited, for example, alkyl glyceryl ether, polyoxyalkylene alkyl ether, polyoxyalkylene hydrogenated castor oil, glycol fatty acid ester, glycerin fatty acid ester, polyoxyalkylene glyceryl ether fatty acid ester, sorbitan fatty acid ester , Polyoxyalkylene sorbitan fatty acid esters, nonionic surfactants such as silicone surfactants; alkyl sulfates, polyoxyethylene alkyl ether sulfates, acyl N-methyl taurine salts, alkyl ether phosphate esters, N-acyl amino acids Anionic surfactants such as salts; cationic surfactants such as alkyltrimethylammonium chloride and dialkyldimethylammonium chloride; alkyldimethylamido Betaine acetate, amphoteric surfactants such as alkyl amidopropyl dimethylamino acetate betaine.

  Although it does not specifically limit as said polyhydric alcohol, For example, ethylene glycol, propylene glycol, dipropylene glycol, polyethylene glycol, 1,3-butylene glycol, glycerin, concentrated glycerin, diglycerin, triglycerin, glucose, maltose, multi Tall, sucrose, mannitol, sorbitol, 1,2-pentanediol, 1,2-hexanediol, 1,2-octanediol and the like.

  The above-mentioned fatty acid ester oil which is liquid at room temperature is not particularly limited. For example, 2-ethylhexyl palmitate, cetyl 2-ethylhexanoate, glyceryl tri-2-ethylhexanoate, glyceryl tri (capryl / caprate), triisostearin Glyceryl acid and pentaerythritol tetra-2-ethylhexanoate.

  Examples of the cooling agent include, but are not particularly limited to, menthol, menthyl glyceryl ether, menthyl lactate, peppermint oil, peppermint oil, camphor, and isilin. Examples of the powder include, but are not particularly limited to, silicic anhydride, zinc oxide, talc, and mica. Examples of the antioxidant include, but are not particularly limited to, tocopherol and its derivatives, ascorbic acid and its derivatives, and the like. The sequestering agent is not particularly limited, and includes, for example, edetate, phosphoric acid, and sodium polyphosphate. The pH adjuster is not particularly limited, but examples thereof include citric acid and tartaric acid.

  A volatile silicone oil is used for the rest of the body odor suppressing composition of the present invention from the viewpoint of maximizing a smooth feeling.

Examples of the volatile silicone oil include cyclic silicone oils such as octamethylcyclotetrasiloxane, decamethylcyclopentasiloxane, dodecamethylcyclohexasiloxane and methylcyclopolysiloxane; octamethyltrisiloxane, tetradecamethylhexasiloxane, 25 A chain silicone oil such as methylpolysiloxane having a kinematic viscosity at 1 ° C. of 1 mm ² / s or more and less than 30 mm ² / s is exemplified. One of these volatile silicone oils may be used alone, or two or more thereof may be used in appropriate combination. Among the volatile silicone oils, it is preferable to use a cyclic silicone oil from the viewpoint of maximizing a smooth feeling.

  The content of the volatile silicone oil is usually preferably 1 to 40% by mass, more preferably 3 to 30% by mass, in the composition for suppressing body odor of the present invention, from the viewpoint of maximizing the smooth feeling. It is. The content of the volatile silicone oil is the total content of all volatile silicone oils in the body odor suppressing composition of the present invention.

  The dosage form of the composition for suppressing body odor of the present invention is not particularly limited, but is preferably a dosage form that does not scatter during application, for example, a cream, a wax, or a stick. Above all, the composition for suppressing body odor of the present invention is preferably in the form of a stick.

  The formulation of the composition for suppressing body odor of the present invention can be carried out by a generally known production method. The method for producing the stick-like composition for suppressing body odor is not particularly limited as long as it can be made into a stick, and examples thereof include a compression molding method and a molding method without compression.

  The method of compression molding is not particularly limited, and a known method can be used, and either a dry method or a wet method may be used. Specifically, there can be exemplified a method in which the components of the present invention are mixed and stirred, filled in a molding container, and solidified into a stick shape using a compression press. In addition, the mixed stirred product can be filled in a molding container as it is, but from the viewpoint of improving the uniformity at the time of filling, the mixed stirred product is crushed using a crusher such as a hammer mill, a pin mill, or an atomizer. It is preferable to fill the molded container after passing through.

  The mixing stirrer used at the time of mixing and stirring is not particularly limited as long as it can uniformly mix the components, but a Henschel mixer, a blender mixer, a V-type mixer, a ribbon mixer, a Nauter mixer, a high-speed mixer And the like.

  The pressure applied during compression molding is not particularly limited as long as it is appropriately adjusted so as to form a stick having a desired hardness, but is preferably molded at a pressure of 0.01 to 4 MPa, more preferably 0.05 to 4 MPa. ３3 MPa.

  On the other hand, the method of molding without compression is not particularly limited, and a known method can be used. Specifically, a method in which the components of the present invention are mixed and agitated, filled in a molding container, and dried using a means such as natural drying, heat drying, hot air drying, and solidified into a stick shape is exemplified. Can be. The mixed stirred product can be filled in a molding container as it is, but from the viewpoint of improving the uniformity at the time of filling, it is preferable that the mixed stirred product is filled in the molded container while heating.

  The shape of the stick-like odor suppressing composition of the present invention molded by the above method is not particularly limited, and examples thereof include rods such as a cylinder, a triangular prism, a quadrangular prism, a pentagonal prism, and a hexagonal prism.

  The stick-like body odor suppressing composition of the present invention formed into a rod by the above method can be made into a form of a body odor suppressing stick product by being fixed in a container dedicated to sticks. The shape of the stick-dedicated container is not particularly limited as long as it conforms to the shape of the stick-shaped body odor suppressing composition.Examples include containers having a cylindrical, triangular, quadrangular, pentagonal, or hexagonal column shape. Can be.

  The method of using the stick product for suppressing body odor is not particularly limited as long as the desired effect is sufficiently imparted. For example, the stick is directly applied to the skin such as the armpit, arm, forehead, neck, chest, and back. A method for directly applying the composition for suppressing body odor; a method for applying the composition for suppressing stick odor to skin such as armpits, arms, forehead, neck, chest, back, etc. using an applicator such as a makeup brush or a tip. And the like.

  Hereinafter, the present invention will be described in more detail with reference to Examples, but the present invention is not limited to these Examples. In addition, the compounding amount represents "% by mass" unless otherwise specified. All the components were converted to pure components.

  The following components were used in Examples and Comparative Examples.

[Component (A)]
Production Example of Activated Carbon Coated with Titanium Oxide Activated carbon (trade name “GW-B32 / 60”, manufactured by Kuraray Chemical Co., Ltd.) is crushed using a crusher and further classified to obtain activated carbon (powder having an average particle size of 40.9 μm). Activated carbon).
To 0.1 g of a 45% alkyl acrylate copolymer liquid (trade name “Yodozol GH800F”, manufactured by AkzoNobel), 5.1 g of purified water was added, and the mixture was sufficiently stirred to obtain a mixed solution (1). .
While stirring 2.7 g of the mixed liquid (1), the mixed liquid (1) was mixed with 1.8 g of the activated carbon (average particle size: 40.9 μm) obtained above to obtain a mixed liquid (2).
10.8 g of titanium oxide (trade name “CR-50”, manufactured by Ishihara Sangyo Co., Ltd., average particle size: 0.25 μm) was mixed with the obtained mixture (2) to obtain a mixture (3).
Next, the obtained liquid mixture (3) was dried at 115 ° C. for 2 hours, and the dried product was crushed into a powder with a crusher to obtain titanium oxide-coated activated carbon.

[Component (B)]
Polyglyceryl-3 polydimethylsiloxyethyl dimethicone: trade name "KF-6106" (manufactured by Shin-Etsu Chemical Co., Ltd.)
PEG-11 methyl ether dimethicone: trade name "KF-6011" (Shin-Etsu Chemical Co., Ltd.)

[Component (C)]
Stearyl alcohol: Trade name “Stearyl alcohol NX” (manufactured by Higher Alcohol Industry Co., Ltd.)

[Component (D)]
(Dimethicone / vinyl dimethicone) cross polymer: trade name "KSG-15" (manufactured by Shin-Etsu Chemical Co., Ltd.)

[Component (E)]
Shea butter: trade name “Star Shea Butter Refined” (manufactured by IMCD Group BV)
Hardened castor oil: Trade name "Caster wax" (manufactured by Toyokuni Oil Co., Ltd.)
Beeswax: Trade name "Kousan Dash Beeswax" (Miki Chemical Industry Co., Ltd.)
Candelilla wax: Product name "Purified candelilla wax R-2CGM" (Mitsuba Trading Co., Ltd.)
Microcrystalline wax: trade name "HI-MIC-1090" (manufactured by Nippon Seiwa Co., Ltd.)

[Component (F) and component (G)]
Benzalkonium chloride: Nissan Cation M2-100R (trade name, manufactured by NOF CORPORATION)
Isopropyl methyl phenol: Trade name "isopropyl methyl phenol" (manufactured by Osaka Kasei Co., Ltd.)
Chlorohydroxyaluminum: trade name “Micro Dry 3115” (manufactured by Summit Research Labs)

[Other components]
Silicic anhydride: Trade name "AEROSIL 300" (manufactured by Nippon Aerosil Co., Ltd.)
Trimethylsiloxysilicic acid: trade name "KF-7312J" (manufactured by Shin-Etsu Chemical Co., Ltd.)
Polyoxypropylene butyl ether (14PO): trade name "Fluid AP, Low Odor" (manufactured by Dow Chemical Company)
Decamethylcyclopentasiloxane: trade name "KF-995" (Shin-Etsu Chemical Co., Ltd.)

(Sample preparation)
According to the compositions shown in Tables 1 to 3, the respective components were mixed and stirred, and then molded into a cylindrical stick shape to prepare a stick-like body odor suppressing composition. Then, the composition was fixed in a stick-dedicated container to form stick products for suppressing body odor of Examples 1 to 10 and Comparative Examples 1 and 2, and subjected to the following evaluation tests. The results are also shown in Tables 1 to 3.

(Test Example 1: Evaluation of spreadability)
The composition adhered to the body odor control stick product obtained in each of the examples and comparative examples was actually applied directly to the armpit and its surroundings by 10 female evaluation panels, and the composition at the time of application was used. Was evaluated organoleptically according to the following evaluation criteria.

<Extensibility evaluation criteria>
◎ (Quite good): Eight or more of the ten persons answered that they spread and spread uniformly and were excellent in spreadability. ○ (Good): 6 to 7 or more of 10 people spread and spread uniformly and were excellent in spreadability. Answer △ (insufficient): 4 to 5 out of 10 people spread and spread uniformly and excellent spreadability × (poor): 3 or less of 10 people spread and spread uniformly and spreadable Answer

(Test Example 2: Evaluation of powder floating)
Using the same evaluation panel, the presence or absence of “floating powder” 10 minutes after the evaluation of Test Example 1 was visually evaluated according to the following evaluation criteria.

<Evaluation criteria for floating powder>
◎ (very good): 8 or more out of 10 persons answered that no powder floating was observed in the application part ○ (good): 6 to 7 or more persons out of 10 persons did not recognize powder floating in the application part Answer △ (insufficient): 4 to 5 out of 10 persons answered that no powder floating was observed in the application section × (poor): 3 or less of 10 persons found that no powder floating was observed in the application section Answer

(Test Example 3: Evaluation of skin condition)
Twenty minutes after the evaluation in Test Example 2, the evaluation panel was actually touched with the application portion with a fingertip, and the "skin condition" was subjected to a sensory evaluation according to the following evaluation criteria.

<Skin condition evaluation criteria>
◎ (very good): 8 or more of 10 persons answered that they had no stickiness and had a rough skin ○ (good): 6 to 7 or more of 10 persons had no stickiness and had a rough skin Answer: Yes (insufficient): 4 to 5 out of 10 responded that they had no stickiness and had a rough skin × (bad): 3 or less of 10 had no sticky and smooth skin Answer state

  From the results of Tables 1 to 3, the stick-shaped body odor suppressing composition of the present invention, which is each of the examples, spreads and spreads uniformly at the time of application as compared with those of the comparative examples, and is excellent in spreadability. You can see that. In addition, it can be seen that the stick-like composition for suppressing body odor of the present invention has reduced powder floating after application and has a non-sticky, smooth skin condition.

  In contrast, the composition of Comparative Example 1, which does not satisfy the essential component (B) of the present invention, is not only inferior in spreadability at the time of application, but also does not reduce powder floating after application. . The composition of Comparative Example 2 which does not satisfy the essential component (C) of the present invention was not used for evaluation because it could not be molded into a stick.

  Hereinafter, examples of other dosage forms of the composition for suppressing body odor of the present invention will be described. In addition, the compounding amount represents "% by mass" unless otherwise specified. All the components were converted to pure components.

(Example 11: Composition for suppressing creamy body odor)
Activated carbon coated with titanium oxide 1.0%
PEG-11 methyl ether dimethicone 0.5%
Stearyl alcohol 2.0%
(Dimethicone / vinyl dimethicone) crosspolymer 0.5%
Shea butter 8.0%
Beeswax 2.0%
Benzalkonium chloride 0.1%
Isopropyl methyl phenol 0.1%
Chlorhydroxyaluminum 20.0%
Stearic acid 2.0%
Liquid paraffin 6.0%
PEG-25 stearate 1.0%
Glyceryl stearate 2.0%
Decamethylcyclopentasiloxane 5.0%
Glycerin 15.0%
1,3-butylene glycol 10.0%
Purified water 24.8%
100.0% in total

  The same evaluation was performed on the composition for suppressing creamy body odor of Example 11, and the spreadability at the time of application was good, there was no powder floating after application, and there was no stickiness, resulting in a smooth skin state. The result was obtained.

(Example 12: Composition for suppressing waxy body odor)
Activated carbon coated with titanium oxide 1.0%
PEG-11 methyl ether dimethicone 0.5%
Stearyl alcohol 2.0%
(Dimethicone / vinyl dimethicone) crosspolymer 0.5%
Candelilla wax 20.0%
Microcrystalline wax 2.0%
Benzalkonium chloride 0.1%
Isopropyl methyl phenol 0.1%
Chlorhydroxyaluminum 20.0%
Stearic acid 2.0%
2-ethylhexyl palmitate 10.0%
Liquid paraffin 5.0%
Polyoxyethylene cetyl ether 3.0%
Sorbitan stearate 2.0%
Decamethylcyclopentasiloxane 10.0%
2.0% ethanol
1,3-butylene glycol 3.0%
Purified water 16.8%
100.0% in total

  When the same evaluation was performed on the waxy body odor control composition of Example 12, the spreadability at the time of application was good, there was no powder floating after application, and there was no stickiness, resulting in a smooth skin state. The result was obtained.

Claims (9)

A composition for suppressing body odor, comprising the following component (A), the following component (B 2 ), and the following component (C).
Component (A): activated carbon and titanium oxide coated charcoal component comprising a titanium oxide on the surface of the activated carbon (B 2): Po Li glycerin-modified silicone component (C): at room temperature-solid fatty alcohol   The composition for controlling body odor according to claim 1, wherein the average particle size of the activated carbon in the component (A) is 15 to 50 m, and the average particle size of the titanium oxide is 0.01 to 0.5 m.   The composition for suppressing body odor according to claim 1 or 2, wherein the component (A) has a mass ratio of the titanium oxide to 500 to 1500 parts by mass with respect to 100 parts by mass of the activated carbon. The body odor suppressing composition according to any one of claims 1 to 3, comprising the following component (D).
Component (D): (Dimethicone / vinyl dimethicone) crosspolymer The composition for suppressing body odor according to any one of claims 1 to 4, comprising the following component (E).
Component (E): Oil at room temperature other than component (C) The body odor suppressing composition according to any one of claims 1 to 6, comprising the following component (F) and / or the following component (G).
Component (F): Fungicide Component (G): Antiperspirant The component (H) does not contain the following component (H) or contains the following component (H) and the content of the following component (H) in 100% by mass of the composition for suppressing body odor is 50% by mass or less. The composition for suppressing body odor according to any one of the above.
Component (H): water   The composition for suppressing body odor according to any one of claims 1 to 7, wherein the composition is in the form of a stick.   A stick product for suppressing body odor, comprising: a stick-dedicated container; and the stick-shaped body odor-suppressing composition according to claim 8 fixed in the stick-dedicated container.