TW202304410A - Cosmetic composition - Google Patents

Abstract

A cosmetic material comprising components (A) and (B), wherein: the contained amount of component (A) with respect to the entirety of the cosmetic material is 0.3-10 mass%; if the cosmetic material contains component (C), the contained amount of component (C) is 5.0 mass% or less with respect to the entirety of the cosmetic material; and, if the cosmetic material contains component (D), the contained amount of component (D) is 25 mass% or less with respect to the entirety of the cosmetic material. (A) A hydrophobized particulate zinc oxide or a hydrophobized particulate titanium oxide. (B) A volatile solvent. (C) A hydrophilic organic compound that has fluidity at 25 DEG C. (D) Water.

Description

Cosmetics

The present invention relates to a cosmetic material.

As techniques for imparting desired properties to hair or skin, there are those described in Patent Documents 1 to 5. Patent Document 1 (Japanese Patent Application Laid-Open No. 2011-520882) describes a composition for imparting water repellency to keratinous fibers. It is described that the composition contains first and second materials with specific kinetic friction coefficients in specific ratios. Hydrophobic particulate material, and contains a specific amount of volatile solvent, and may contain a specific amount of non-volatile solvent. In addition, in Patent Document 1, it is described that the first hydrophobic particulate material includes a surface-modified particle selected from alumina, silicon dioxide, titanium dioxide, tin oxide, zinc oxide, zirconium dioxide, or the like to have hydrophobicity. Oxide in combination.

Patent Document 2 (International Publication No. 2003/075863) describes a water-sliding cosmetic, which contains a specific amount of a non-volatile oil agent with a specific kinematic viscosity and a water-repellent resin powder with a specific size. , oil-soluble silicone resin, volatile solvent, and water-repellent surface treatment content, the water-sliding property of the cosmetic is stable without showing temperature dependence, and it has excellent durability, touch and anti-ultraviolet effect.

In Patent Document 3 (Japanese Patent Application Laid-Open No. 2007-238645), a cosmetic is described, which contains a powder treatment agent containing an organohydrogenpolysiloxane having a specific structure and a weight average molecular weight, and by using the powder The purpose of this technology is to provide a surface treatment agent that fully reacts with the active groups on the surface and has good storage stability.

Patent Document 4 (Japanese Unexamined Patent Publication No. 2007-1868) describes a cosmetic containing a gelling agent containing a specific organopolysiloxane. By preparing the gelling agent described in Patent Document 4 or the The gel-like composition provides cosmetics and cosmetics with excellent daily stability, moisture retention, touch, gloss, curl retention, cleansing, anti-drip, and product appearance.

In addition, Patent Document 5 (Japanese Patent Application Laid-Open No. 2020-520965) describes the use of a cosmetic product for imparting an anti-pollution effect on human skin or human hair, the cosmetic product containing a polymer, or containing a polymer And additional known cosmetic ingredients. [Prior Art Literature] [Patent Document]

Patent Document 1: Japanese Patent Application Publication No. 2011-520882 Patent Document 2: International Publication No. 2003/075863 Patent Document 3: Japanese Patent Laid-Open No. 2007-238645 Patent Document 4: Japanese Patent Laid-Open No. 2007-1868 Patent Document 5: Japanese Patent Application Publication No. 2020-520965

According to the present invention, A cosmetic is provided, which contains the following ingredients (A) and (B), and The content of the above-mentioned component (A) is not less than 0.3% by mass and not more than 10% by mass relative to the entire cosmetic material, When the cosmetic contains the following component (C), the content of the above-mentioned component (C) is 5.0% by mass or less with respect to the entire cosmetic, When this cosmetic contains the following component (D), content of the said component (D) is 25 mass % or less with respect to the whole cosmetic. (A) Hydrophobized microparticle zinc oxide or hydrophobized microparticle titanium oxide (B) Volatile solvents (C) Hydrophilic organic compound with fluidity at 25°C (D) water

According to the present invention, Provided is a water repellency imparting agent which contains the following components (A) and (B), and Content of the said component (A) is 0.3 mass % or more and 10 mass % or less with respect to the said water repellency imparting agent whole, When the water-repellent imparting agent contains the following component (C), the content of the above-mentioned component (C) is 5.0% by mass or less with respect to the entire water-repellent imparting agent, When this water repellency imparting agent contains the following component (D), content of the said component (D) is 25 mass % or less with respect to the said water repellency imparting agent whole. (A) Hydrophobized microparticle zinc oxide or hydrophobized microparticle titanium oxide (B) Volatile solvents (C) Hydrophilic organic compound with fluidity at 25°C (D) water

According to the present invention, Provided is a water-repellent structure comprising the above-mentioned dried cosmetic of the present invention, and having an arithmetic average roughness (Ra) of 0.1 μm to 3.0 μm specified in JIS B0601; 2001.

According to the present invention, A method for manufacturing a water-repellent structure on the surface of hair or skin is provided, which includes applying the above-mentioned cosmetics of the present invention to hair or skin.

There is provided a method of imparting water repellency to hair or skin, which comprises applying the above-mentioned cosmetic of the present invention to hair or skin.

Also, according to the present invention, A hair or skin treatment method is provided, which comprises the following steps (i) and (ii), and the above step (ii) is performed after the above step (i). (i) The step of applying the above-mentioned cosmetics of the present invention to hair or skin (ii) A step of evaporating the above-mentioned component (B) from the above-mentioned hair or skin

According to the studies of the present inventors, even using the techniques described in the above patent documents, there is still room for improvement in smoothing the texture of hair or skin and stably imparting water repellency to hair or skin.

In view of this, in the present invention, it is possible to provide a good appearance in which hair or skin is suppressed from decreasing in smooth texture, water repellency is stably imparted to hair or skin, whitening of hair or skin is suppressed, and good washing-off properties are provided. A cosmetic with an excellent balance of effects.

According to the present invention, various effects of suppression of decrease in smooth texture of hair or skin, stable provision of water repellency to hair or skin, good appearance with suppressed whitening of hair or skin, and good wash-off property can be obtained Cosmetics with excellent balance.

Hereinafter, specific examples of each component will be given and described regarding embodiments of the present invention. In addition, in this embodiment, a composition may contain any one of each component individually, or may contain 2 or more types together.

(cosmetics) In this embodiment, a cosmetic contains the following components (A) and (B), and content of a component (A) is 0.3 mass % or more and 10 mass % or less with respect to the whole cosmetic. Also, when the cosmetic contains the following component (C), the content of the component (C) is 5.0% by mass or less with respect to the entire cosmetic, and when the cosmetic contains the following component (D), the content of the component (D) is relatively 25% by mass or less in the cosmetic as a whole. (A) Hydrophobized microparticle zinc oxide or hydrophobized microparticle titanium oxide (B) Volatile solvents (C) Hydrophilic organic compound with fluidity at 25°C (D) water

In this embodiment, specifically, the cosmetic is applied to at least one of hair or skin, preferably applied to hair. The inventors of the present invention have found that the texture of hair or skin can be smoothed by making the cosmetics contain components (A) and (B) and the amounts of components (C) and (D) in the cosmetics are in specific ranges. Moreover, water-repellent property can be stably imparted to hair or skin, and washing|cleaning property is also favorable. Also, according to this embodiment, for example, water repellency, suppression of whitening of the appearance of hair or skin, smooth texture of hair or skin, and wash-off properties with detergents such as surfactant compositions represented by shampoos can also be obtained. , and a cosmetic with an excellent balance of dispersion stability.

(ingredient (A)) Component (A) is hydrophobized microparticle zinc oxide or hydrophobized microparticle titanium oxide, specifically, at least one selected from hydrophobized microparticle zinc oxide and hydrophobized titanium oxide Particles are composed of particle swarms. The material of the base fine particles of the component (A) is at least one of zinc oxide and titanium oxide. In addition, the metal oxide contained in the entire fine particle including the base fine particle and the component (A) of the coating layer is preferably at least one of zinc oxide and titanium oxide. The total content of aluminum oxide, silicon dioxide, and other metal oxides other than zinc oxide and titanium oxide in component (A) is preferably at most 20% by mass, more preferably at most 15% by mass, still more preferably at most 10% by mass It is less than or equal to 5.0 mass % or less, and it is 0 mass % or more than 0 mass %. When alumina is included as the metal oxide, the content of alumina in the component (A) is preferably at most 5.0% by mass, more preferably at most 3.0% by mass, further preferably at most 1.0% by mass. When silicon dioxide is included as the metal oxide, the content of silicon dioxide in component (A) is preferably at most 10% by mass, more preferably at most 7.0% by mass, further preferably at most 5.0% by mass, More preferably, it is 3.0 mass % or less, and it is 0 mass % or more than 0 mass %.

Specifically, the hydrophobization treatment of the substrate particles may be any treatment as long as the surface of the microparticle zinc oxide or microparticle titanium oxide is further hydrophobized than before the treatment. As the treatment agent for hydrophobizing the substrate particles, for example, it can be selected from dimethylpolysiloxane, methylhydrogenpolysiloxane, cross-linked silicone, fluorine-modified silicone, acrylic-modified Silicone, cyclic silicone, single-terminal or double-terminal trialkoxy modified organopolysiloxane, silicone resin and other silicone compounds; anionic surfactants, cationic surfactants, nonionic surfactants and other interfaces Active agent; N-acylamino acid such as N-acylglutamic acid, N-acylaspartic acid, N-acyllysine, etc., amino acid derivatives such as N-acylamino acid ester , such as N-lauroyl-L-glutamine bis(phytosteryl/behenyl/2-octyldodecyl) ester, dilauroyl glutamine sodium lysine; lecithin; Metal soap; alkyl silanes such as methyltrimethoxysilane, ethyltrimethoxysilane, hexyltrimethoxysilane, octyltrimethoxysilane, triethoxyoctylsilane, etc.; polyisobutylene, wax, grease and other oils Fluorine compounds such as perfluoroalkyl phosphoric acid, perfluoropolyether, and perfluoropolyether alkyl phosphoric acid; polyvinylpyrrolidone (PVP) modified polymers such as polyvinylpyrrolidone-hexadecene copolymer; One or more of the group consisting of organic titanates such as isopropyl titanium triisostearate. From the viewpoint of improving the balance between water repellency and smoothness of hair or skin, the above-mentioned treatment agent is preferably an amino acid derivative, a silicone compound or an alkylsilane, more preferably a hydrogenated polydimethylsilane. Methylsiloxane or alkylsilane, more preferably triethoxyoctylsilane. As a method of treating the base particles with a treating agent, a known method is generally used. As the treatment method, for example, one or more methods selected from the group consisting of a wet method using a solvent, a gas phase method, and a mechanochemical method may be mentioned. The treatment method can be selected according to the type of treatment agent, for example.

Here, specifically, fine particles mean particles having an average primary particle diameter of not less than 0.1 nm and not more than 1 μm. The average primary particle size of component (A) is, for example, 0.1 nm or more, preferably 1 nm or more, more preferably 5 nm or more from the viewpoint of improving the smoothness of hair or skin and easiness of washing off with a surfactant composition. nm or more, and more preferably 10 nm or more. In addition, from the viewpoint of improvement of water repellency, suppression of whitening of hair or skin appearance, and improvement of solution stability, the average primary particle size of component (A) is, for example, 1 μm or less, preferably 300 nm or less, and more preferably It is preferably 200 nm or less, more preferably 100 nm or less, further preferably 50 nm or less, and still more preferably 35 nm or less. Specifically, the average primary particle diameter of the component (A) is obtained by dividing the particle size of the component (A) when observing the particles of the component (A) using a transmission electron microscope (TEM) or a scanning electron microscope (SEM). Select a specified number of 200 particles, measure the longest linear part (maximum major diameter) of each of the particles of the component (A), and calculate the value obtained by weighting the measured values. Here, when the particles of the component (A) are aggregated with each other, the predetermined number of particles (primary particles) of the component (A) constituting the aggregate is measured instead of the aggregated particle diameter of the aggregate, and the average particle diameter .

The aspect ratio of the primary particles of component (A) is preferably 10 or less, more preferably 5 or less, and still more preferably 2 or less from the viewpoint of water repellency improvement and cosmetic dispersion stability improvement. Moreover, specifically, the aspect ratio of the primary particle of a component (A) is 1 or more. Furthermore, regarding the "aspect ratio" mentioned here, when observing the particles of the component (A) using a transmission electron microscope (TEM) or a scanning electron microscope (SEM), etc., the aspect ratio of the component (A) is Select a specified number of 200 particles, and measure the ratio of the length of the long diameter of the particle to the length of the short diameter passing through the center of the long diameter, that is, long diameter/short diameter, as the average value of its cumulative distribution. Furthermore, in the case of plate-shaped particles, the ratio is measured by taking the short axis along the thickness direction.

In cosmetics, component (A) is preferably dispersed in the form of particles in the following component (B). In this case, the component (A) preferably has a Z-average particle size of 30 nm or more, more preferably 50 nm or more, from the viewpoint of improving the smoothness of the hair or skin and making it easy to wash off with the surfactant composition. Furthermore, it is more preferably 100 nm or more. In addition, from the viewpoint of improving the stability of the solution, the Z average particle diameter may be, for example, 2500 nm or less, preferably 500 nm or less, more preferably 400 nm or less, further preferably 300 nm or less.

Here, the Z-average particle diameter is a value obtained by analyzing measurement data obtained by dynamic light scattering methods such as particle dispersions using the cumulant analysis method. In the cumulant analysis method, the average value of the particle diameter and the polydispersity index (PDI) can be obtained, and the average value of the particle diameter is defined as the Z-average particle diameter. Strictly speaking, the operation of fitting the polynomial to the logarithm of the G1 correlation function obtained from the measurement is called cumulant analysis, and the constant b in the following formula is called the quadratic cumulant or Z-average diffusion coefficient. LN(G1)=A+bt+ct ² +dt ³ +et ⁴ +・・・ The value obtained by converting the above constant b into particle diameter using the viscosity of the above dispersion liquid and some device constants is Z average particle diameter.

Specifically, the Z-average particle diameter of the component (A) is measured with a particle diameter measuring device (for example, "Zeta sizer Nano ZS" manufactured by Malvern Corporation) using a dynamic light scattering method. As a measurement sample, what disperse|distributed the component (A) in ethanol and made the dispersion liquid was used. In addition, the said dispersion liquid can be prepared so that the density|concentration of a component (A) may become 1 mass %. A tank made of polymethyl methacrylate (PMMA) was placed in the measurement section of the particle size measuring device ("Zetasizer Nano ZS" manufactured by Malvern Co., Ltd.) using the above-mentioned dynamic light scattering method, and the above-mentioned dispersion liquid was dispensed into the PMMA tank. In the tank, the Z-average particle diameter of the component (A) was measured. More specifically, the Z-average particle diameter of the component (A) is measured by the method described in the Examples.

From the viewpoint of improving water repellency, the content of component (A) in the cosmetic is at least 0.3% by mass, preferably at least 0.5% by mass, more preferably at least 0.8% by mass, based on the entire cosmetic. In addition, from the viewpoint of improving the smoothness of hair or skin, suppressing whitening of the hair or skin surface, and being easy to wash off with a surfactant composition, the content of component (A) in cosmetics relative to cosmetics The entire material is 10% by mass or less, preferably 9% by mass or less, more preferably 8% by mass or less, more preferably 7% by mass or less, more preferably 6% by mass or less, even more preferably 4% by mass or less , preferably 3% by mass or less.

Here, when component (A) contains hydrophobized microparticle zinc oxide and hydrophobized microparticle titanium oxide, specifically, the content of component (A) is the content of hydrophobized microparticle zinc oxide and The total content of hydrophobized microparticle titanium oxide.

(Component (B)) The component (B) is a volatile solvent (excluding the component (D)). Specifically, a volatile solvent refers to a solvent that is liquid at 25°C, has a boiling point of 260°C or lower at normal pressure (1013.25 hPa), and a vapor pressure of 1.3×10 ^-2 Pa or higher at 25°C. From the viewpoint of fast volatilization and imparting excellent water repellency to hair or skin, component (B) is preferably one or two selected from the group consisting of silicone, lower alcohols having 3 or less carbon atoms, and hydrocarbon oils more than one, more preferably one or two or more selected from the group consisting of ethanol, decamethylcyclopentasiloxane, polydimethylsiloxane, and isododecane. That is, the component (B) may be a single component or may be a mixture of two or more solvents.

Specifically, one or two or more types selected from the group consisting of linear and cyclic silicone oils having a boiling point of 260° C. or lower at 1013.25 hPa can be used as the silicone. Also, from the viewpoint of improving stability during storage, the boiling point at 1013.25 hPa is preferably 35° C. or higher.

As chain-like volatile silicones, for example, chain silicones represented by the following formula (1) or following general formula (2), as cyclic volatile silicones, for example, the following Cyclic silicone represented by general formula (3).

[chemical 1]

[Chem 2]

(In the above general formula (2), x is an integer ranging from 0 to 5)

[Chem 3]

(In the above general formula (3), y is an integer ranging from 3 to 6)

In addition, from the viewpoint of improving water repellency and improving the smoothness of hair or skin, the silicone is preferably a chain silicone represented by the above general formula (2) or a silicone represented by the above general formula (3). Cyclic silicone, more preferably polydimethylsiloxane or decamethylcyclopentasiloxane.

The lower alcohol having 3 or less carbon atoms is preferably a saturated monohydric alcohol having 1 or more and 3 or less carbon atoms from the viewpoint of quickly evaporating and quickly imparting water repellency to hair or skin. Specifically, the aforementioned saturated monohydric alcohol is one or more alcohols selected from the group consisting of methanol, ethanol, n-propanol and isopropanol, preferably ethanol.

Specifically, as the hydrocarbon oil, one having a flash point of 35° C. or higher and 87° C. or lower is exemplified. From the viewpoint of fast volatilization and rapid water repellency to hair or skin, the hydrocarbon oil is, for example, selected from paraffinic hydrocarbon oils such as n-decane, n-undecane, and n-dodecane; Isomerized paraffinic hydrocarbon oils such as hydrogenated polyisobutylene; one or two or more of the group consisting of cyclodecane, cyclododecane and other cyclic paraffinic oils, preferably with a carbon number of 8 to 16 The hydrocarbon oil is more preferably a hydrocarbon oil with a carbon number of 10 to 16, and more preferably a hydrocarbon oil with a carbon number of 12. Also, from the same viewpoint, the hydrocarbon oil is preferably isomerized paraffinic hydrocarbon oil, more preferably at least one of isododecane and hydrogenated polyisobutene having 12 carbon atoms, and more preferably isododecane . Commercially available hydrocarbon oils include, for example, MARUKASOL R (manufactured by Maruzen Petrochemical Co., Ltd.: flash point 48° C.), Parleam 3 (manufactured by NOF Corporation: flash point 61° C.), Creasil (trademark) ID CG (The Innovation ComPany).

The content of the component (B) in the cosmetic can be, for example, the residual amount other than the components other than the component (B) in the cosmetic. Also, from the viewpoint of improving water repellency and improving solution stability, the content of component (B) in the cosmetic is preferably at least 70% by mass, more preferably at least 75% by mass, based on the entire cosmetic, and further Preferably it is 79 mass % or more, More preferably, it is 85 mass % or more, More preferably, it is 90 mass % or more. Furthermore, from the viewpoint of improving water repellency, specifically, the content of the component (B) in the cosmetic is 99.7% by mass or less, preferably 99.5% by mass or less, more preferably 99.0% by mass or less, based on the whole, More preferably, it is 98.0% by mass or less, and still more preferably, it is 95.0% or less.

In cosmetics, the mass ratio ((A)/(B)) of component (A) to component (B) is preferably at least 0.003, more preferably at least 0.008, from the viewpoint of water repellency improvement. In addition, from the viewpoint of improving smoothness of hair or skin, and suppressing whitening of hair or skin surface, the above-mentioned mass ratio ((A)/(B)) is preferably 0.20 or less, more preferably 0.15 or less , and more preferably 0.125 or less, further preferably 0.10 or less.

Cosmetics may consist of components (A) and (B), and may further contain other components.

(ingredient (C)) Component (C) is a hydrophilic organic compound having fluidity at 25°C (except component (B)). Here, having fluidity at 25°C means that the viscosity at 25°C is 10000 mPa·s or less. Specifically, the above-mentioned viscosity is measured at 25°C by a B-type viscometer (viscosity measured. For example, using a B-type viscometer (such as TOKI SANGYO VISCOMETER TVB-10M, manufactured by Toki Sangyo Co., Ltd.), for 10000 mPa・For values around s, measure the above-mentioned viscosity using the spindle No.4 under the conditions of 30 rpm and 1 minute.

As a hydrophilic organic compound (excluding a component (B)) which has fluidity at 25 degreeC of a component (C), specifically, the following components (C1)-(C3) are mentioned. (C1) Organic compounds whose hydrogen bond term δ _H of Hansen solubility parameter is 2.0 mPa ^1/2 or more (C2) Silicones with non-ionic hydrophilic groups or amine groups (except component (C1)) (C3) Polyols Polymer (excluding component (C1)) Hereinafter, each component is demonstrated.

(Component (C1)) In component (C1), the so-called hydrogen bond item of Hansen Solubility Parameters refers to the use of the software package HSPiP 4th Edition based on Hansen Solubility Parameters: A User's Handbook, CRC Press, Boca Raton FL, 2007 4.1.07, δ _H (mPa ^1/2 ) calculated at 25°C in the DIY (Do It Yourself, spontaneous) program (the energy item of the hydrogen bond between molecules: hereinafter also referred to as the "hydrogen bond item" ).

Component (C1) includes, for example, aliphatic alcohols, aromatic alcohols, ether alcohols, alkyl ethers, N-alkanes, and linear or branched alkyl groups having 2 to 10 carbon atoms and one or more hydroxyl groups. Organic compounds such as pyrrolidones, cyclic esters, acyclic esters, acyclic ethers, alkylamines that may have hydroxyl groups, and polyols.

Specific examples of the component (C1) are given below. The values in parentheses in each illustration are the hydrogen bond items calculated by the above method, and the unit is MPa ^1/2 . Examples of aliphatic alcohols having a straight-chain or branched alkyl group with a carbon number of 2 to 10 and one or more hydroxyl groups include: 1-propanol (14.7), 2-propanol (14.3), 1-butanol ( 15.2), 2-butanol (12.4) and other lower alkanols; hexanediol (15.0), octanediol (14.5), decanediol (12.8) and other polyhydric alcohols. Examples of aromatic alcohols include: benzyl alcohol (12.4), cinnamon alcohol (10.9), phenethyl alcohol (11.4), p-anisyl alcohol (12.1), p-methylbenzyl alcohol (11.2), phenoxyethanol (12.2), 2-Benzyloxyethanol (10.8), phenylpropanol (10.2). Isostearyl alcohol (6.0) can be illustrated as an aliphatic alcohol. Examples of ether alcohols include: ethylene glycol monoethyl ether (15.7), ethylene glycol monobutyl ether (13.0), diethylene glycol monomethyl ether (13.1), diethylene glycol monoethyl ether (11.9), diethylene glycol Alcohol monobutyl ether (11.7), ethyl hexyl glyceryl ether (13.1). As an alkyl ether, dimethyl ether (5.8) can be illustrated. Examples of N-alkylpyrrolidones include: N-methylpyrrolidone (6.6), N-ethylpyrrolidone (7.0), N-(2-hydroxyethyl)-2-pyrrolidone ( 13.5). Examples of cyclic esters include γ-valerolactone (6.3), γ-caprolactone (5.7), γ-crotonyl lactone (8.1), and γ-butyrolactone (7.0). Examples of acyclic esters include diisostearyl malate (3.1), octyldodecyl lactate (4.7), ethyl lactate (14.4), butyl lactate (11.9), isononanoic acid iso Nonyl ester (2.4), isotridecyl isononanoate (2.1), isopropyl palmitate (2.5), ethylhexyl palmitate (2.2), isopropyl isostearate (2.0), hard Butyl fatty acid (2.5), myristyl myristate (2.3), isopropyl myristate (2.7), neopentyl glycol dicaprate (3.0), glyceryl tricaproate (5.0), 2 - pentaerythritol ethylhexanoate (2.1), ethylhexyl methoxycinnamate (4.5), sorbitan isostearate (9.1), ethylhexyl salicylate (6.1). Isostearyl glyceryl ether (7.5) can be illustrated as an acyclic ether. Examples of alkylamines that may have a hydroxyl group include methylamine (13.0), ethylamine (10.2), propylamine (8.5), butylamine (7.8), hexylamine (6.5), and dimethylamine (7.4), diethylamine (5.6), N,N-dimethylmonoethanolamine (13.1), aminomethylpropanol (14.4). Examples of polyols include: glycerin (28.5), diglycerin (26.6), dipropylene glycol (17.5), 1,3-butanediol (21.4), propylene glycol (21.7), diethylene glycol (20.9), triethylene glycol Diol (17.4), tetraethylene glycol (15.3).

From the viewpoint of improving water repellency, the cosmetic material preferably does not contain organic compounds (excluding components (B) and (C)) with a δ _H of 2.0 MPa ^1/2 or more, and more preferably does not contain an organic compound with a δ _H of 1.5 The organic compound of MPa ^1/2 or more, and more preferably does not contain the organic compound of δ _H of 1.0 MPa ^1/2 or more. Also, from the viewpoint of improving water repellency, the cosmetic material preferably does not contain an organic compound with a δ _H of 30 MPa ^1/2 or less, more preferably does not contain an organic compound with a δ _H of 35 MPa ^1/2 or less, and further It is preferable not to contain organic compounds whose δ _H is 40 MPa ^1/2 or less.

(Component (C2)) Silicones having nonionic hydrophilic groups or amino groups as component (C2) include polyoxyalkylene-modified silicones, glyceryl ether-modified silicones, alkyl glyceryl ether-modified silicones, polyoxyalkylene-modified silicones, Ether-alkyl modified silicone, amino modified silicone, amino polyether modified silicone; polyether modified silicone, cross-linked organopolysiloxane, cross-linked polyether modified silicone , Cross-linked polyglycerol modified silicone, etc. The silicone chain of the polyether-modified silicone may be either linear or branched, and the component (C2) may, for example, be polyoxyethylene-methylpolysiloxane copolymer or a modified product thereof , poly(oxyethylene-oxypropylene) methyl polysiloxane copolymer or its modified body, silicone chain branched polyoxyethylene methyl polysiloxane copolymer, alkyl chain-silicone chain branched Type polyoxyethylene methylpolysiloxane copolymer, etc. Polyoxyethylene-methylpolysiloxane copolymers and poly(oxyethylene-oxypropylene)methylpolysiloxane copolymers may be further modified with alkyl groups or the like. As a commercially available polyoxyethylene-methylpolysiloxane copolymer or a modified product thereof used as the component (C2), "KF-6015" (PEG-3 polysiloxane) manufactured by Shin-Etsu Chemical Co., Ltd. Dimethicone), "KF-6016" (PEG-9 Dimethicone), "KF-6017" (PEG-10 Dimethicone), Toray Dow Corning Corporation "SS-2910" (PEG-10 polydimethylsiloxane), "SH3772M", "SH3773M" (the above is PEG-12 polydimethylsiloxane), "SH3775M" (PEG-12 polydimethylsiloxane) Dimethicone), etc. As a commercially available poly(oxyethylene-oxypropylene) methylpolysiloxane copolymer or a modified product thereof used as the component (C2), "KF-6012" ( PEG/PPG-20/22 butyl ether polydimethylsiloxane), "KF-6026" (PEG/PPG-10/3 oil ether polydimethylsiloxane), "KF-6048" manufactured by Shin-Etsu Chemical Co., Ltd. "(Cetyl PEG/PPG-10/1 Dimethicone), "SH3749" (PEG/PPG-20/20 Dimethicone) manufactured by Toray Dow Corning Corporation, "BY22 -008M", "BY11-030", "BY25-337" (the above is PEG/PPG-19/19 polydimethylsiloxane), "5200 Formulation Aid" (lauryl PEG/PPG-18/18 polydimethylsiloxane) Methicone), "SF1528" and "SF1540" of Momentive Advanced Materials Japan Co., Ltd. (the above are PEG/PPG-20/15 polydimethylsiloxane), "ABIL EM 97 S" of Evonik Nutrition&Care GmbH "(bis-PEG/PPG-14/14 polydimethylsiloxane), etc. Commercially available silicone chain branched polyoxyethylene methylpolysiloxane copolymers used as component (C2) include "KF-6028" (PEG-9 polysiloxane) manufactured by Shin-Etsu Chemical Co., Ltd. Dimethylsiloxyethyl polydimethylsiloxane), etc. In addition, as an alkyl chain-silicone chain branched polyoxyethylene methyl polysiloxane copolymer, "KF-6038" (lauryl PEG-9 polydimethyl polysiloxane) manufactured by Shin-Etsu Chemical Co., Ltd. Silaneoxyethyl polydimethylsiloxane), etc. Commercially available polyether-modified silicones other than the above include: "FZ-2222", "FZ-2233", and "FZ-2231" manufactured by Toray Dow Corning Corporation (the above are linear poly ether modified silicone), etc.

Furthermore, examples of the cross-linked organopolysiloxane used as the component (C2) include (polydimethylsiloxane/vinyl polydimethylsiloxane) cross-linked polymer, (polydimethicone) Methicone/Phenyl Dimethicone) Crosspolymer, etc. As (dimethicone/vinyl dimethicone) crosspolymer used as component (C2), KSG-15 as a mixture with decamethylcyclopentasiloxane can be used , KSG-16 (manufactured by Shin-Etsu Chemical Co., Ltd.), which is a mixture with low-viscosity dimethylpolysiloxane, etc., are commercially available. As (dimethicone/phenyl dimethicone) crosspolymer used as component (C2), KSG-18 as a mixture with methyl phenyl polysiloxane can be used (manufactured by Shin-Etsu Chemical Co., Ltd.), etc., are commercially available. As the cross-linked polyether-modified silicone used as the component (C2), for example, KSG-210, KSG-240 (polydimethylsiloxane/(PEG-10/15)) cross-linked polymer) can be used ; KSG-310, KSG-320, KSG-330 ((PEG-15/Lauryl Dimethicone) Crosspolymer); KSG-340 ((PEG-10/Lauryl Dimethicone) Oxane) crosslinked polymer and (PEG-15/lauryl dimethicone) crosslinked polymer) (the above are manufactured by Shin-Etsu Chemical Co., Ltd.). As a cross-linked polyglycerol-modified silicone used as a component (C2), KSG-710 ((polydimethylsiloxane/polyglycerin-3) cross-linked polymer) etc. are mentioned, for example.

(Component (C3)) Specific examples of the component (C3) include polyglycerin, polypropylene glycol, and polyethylene glycol.

Component (C) is preferably one or more selected from the group consisting of ethylhexyl methoxycinnamate, isopropyl palmitate, glycerin, polyether-modified silicone, and polyethylene glycol .

It is speculated that component (C) is a hydrophilic organic compound with fluidity at 25°C, which improves the affinity between the solid surface and water, and makes the water-repellent structure formed on the solid surface hydrophilic. Therefore, it is considered that if the component ( C) If the content is too large, the water repellency will decrease. From the viewpoint of improving water repellency, the content of component (C) in the cosmetic is 5.0% by mass or less, preferably 3.0% by mass or less, more preferably 1.0% by mass or less, and still more preferably 0.1% by mass or less, more preferably substantially no component (C). The term "substantially not containing the component (C)" specifically means that the component (C) is not intentionally added to the cosmetic, and more specifically, it is 0.01% by mass or less. Moreover, specifically, content of a component (C) is 0 mass % or more than 0 mass %. On the other hand, the content of the component (C) may be, for example, 0.1 mass % or more with respect to the whole cosmetic from the viewpoint of adjusting the texture of hair or skin.

From the viewpoint of improving water repellency, improving dispersion stability of cosmetics, and suppressing whitening of hair or skin, the mass ratio of component (C) to component (A) ((C)/(A) ) is preferably 0.5 or less, more preferably 0.2 or less, still more preferably 0.1 or less, still more preferably 0.05 or less. Moreover, specifically, the said mass ratio ((C)/(A)) is 0 or exceeds 0, for example, can be 0.01 or more.

(ingredient (D)) Component (D) is water. From the viewpoint of improving the water repellency and the dispersion stability of the cosmetic, the content of the component (D) in the cosmetic is 25% by mass or less, preferably 20% by mass or less, more preferably It is 15 mass % or less, more preferably 10 mass % or less, still more preferably 5 mass % or less, still more preferably 3 mass % or less, especially preferably 1 mass % or less. Moreover, specifically, content of a component (D) is 0 mass % or more than 0 mass %. On the other hand, from the viewpoint of improving the dispersion stability of cosmetics, the content of component (D) is preferably at least 0.001% by mass, more preferably at least 0.005% by mass, more preferably at least 0.010% by mass, based on the entire cosmetic above, more preferably at least 0.10% by mass, more preferably at least 0.50% by mass.

From the viewpoint of improving water repellency and improving the dispersion stability of cosmetics, the mass ratio ((D)/(A)) of component (D) to component (A) is preferably 20 or less, more preferably 10 or less, more preferably 5 or less, still more preferably 1 or less, still more preferably 0.1 or less. In addition, the above mass ratio ((D)/(A)) is preferably more than 0, more preferably 0.001 or more, still more preferably 0.01 or more.

Cosmetics may contain components other than components (A) to (D). For example, cosmetics may contain oils (except components (B) and (C)). From the viewpoint of suppressing the influence on water repellency, the oil agent is preferably a hydrophobic oil. The so-called hydrophobic oil is specifically an organic compound whose hydrogen bond term of the Hansen solubility parameter does not reach 2.0 MPa ^1/2 . In addition, the oil agent is preferably liquid at 25°C. In addition, as the oil agent (excluding components (B) and (C)), specifically, squalane, liquid paraffin, liquid isoparaffin, polybutene, hydrogenated polyisobutylene (component (B) Hydrocarbon oils other than components (B) and (C), such as hydrogenated polydecene; ester oils such as octyl dodecyl myristate (δ _H 1.9) (except components (B) and (C)) ; One or more of the group consisting of silicones (excluding components (B) and (C)). As silicones, in addition to those commonly formulated in cosmetic products, such as octamethylpolysiloxane, methylpolysiloxane (polydimethylsiloxane), dimethylpolysiloxane, In addition to highly polymerized methylpolysiloxane and methylphenylpolysiloxane, methylpolycyclosiloxane such as octamethylcyclotetrasiloxane, trimethylsiloxysilicic acid, and Examples include alkyl-modified silicone, aralkyl-modified silicone, fluorine-modified silicone, fatty acid ester-modified silicone, fluoroalkyl-modified silicone, epoxy-modified silicone, alcohol-modified silicone Ketones, methacrylic modified silicones, mercapto-modified silicones, vinyl-modified silicones, modified organopolysiloxanes described in Japanese Patent Laid-Open No. 6-72851, etc. Other than (B) and (C).

From the viewpoint of the suppression of whitening of the appearance of hair or skin and the improvement of smoothness of hair or skin, the content of the oil agent (excluding components (B) and (C)) in the cosmetic is preferably 0.1 mass % or more, More preferably, it is 0.5 mass % or more, More preferably, it is 1 mass % or more. Also, from the viewpoint of improving water repellency and easiness of washing off with a surfactant composition, the content of the oil agent (excluding components (B) and (C)) in the cosmetic is preferably 10% by mass relative to the entire cosmetic. % or less, more preferably 8 mass % or less, further preferably 5 mass % or less.

Moreover, cosmetics may further contain powders other than component (A) within the range which does not impair the effect of this invention. Specific examples of powders other than the component (A) include pigments, platy powders, and the like.

Powders other than component (A) can be used as long as they are generally used in cosmetics, regardless of the particle size such as spherical, plate-like, needle-like, smoke-like, fine particles, pigment grade, etc. Porous, non-porous, and other particle structures are limited. However, component (A) is excluded. Specifically, iron red, iron hydroxide, iron titanate, iron oxide yellow, iron oxide black, carbon black, iron blue, ultramarine blue, manganese violet, cobalt violet, chromium oxide, chromium hydroxide, cobalt oxide , cobalt titanate and other colored pigments; titanium oxide (except component (A)), fine particle titanium oxide (except component (A)), zinc oxide (except component (A)), fine particle zinc oxide (except component (A)) , zirconia, magnesium oxide, cerium oxide, aluminum oxide (alumina), barium sulfate, calcium sulfate, magnesium sulfate, magnesium carbonate, calcium carbonate, talc, mica, kaolin, sericite, silicic acid, silicic anhydride (silicon dioxide) , aluminum silicate, magnesium silicate, aluminum magnesium silicate, calcium silicate, barium silicate, strontium silicate, metal tungstate, hydroxyapatite, vermiculite, bentonite, montmorillonite, lithium bentonite, bentonite Stone, zeolite, ceramic powder, calcium hydrogen phosphate, boron nitride, synthetic sericite and other white or extender pigments; one or more of these can be used. The particle size of the powder other than component (A) is preferably an average primary particle size of 0.001 μm or more, more preferably 0.01 μm or more, from the viewpoint of hair or skin whitening suppression and smoothness improvement. , preferably less than 10 μm, more preferably less than 5.0 μm.

Specifically, the platy powder (excluding component (A)) is selected from platy cerium oxide, platy barium sulfate, talc, mica, platy kaolin, sericite, muscovite, platy synthetic mica, phlogopite, Red mica, biotite, lepidolite, plate silicic anhydride, plate hydroxyapatite, bentonite, montmorillonite, lithium bentonite, plate ceramic powder, plate alumina, plate boron nitride, Plate iron oxide, titanium oxide coated mica, titanium oxide treated mica, bismuth oxychloride, titanium oxide coated bismuth oxychloride, titanium oxide coated talc, fish scale foil, titanium oxide coated colored mica, aluminum and plate glass powder, etc. One or more than two types in the group formed.

From the standpoint of improved water repellency and ease of washing off with a surfactant composition, the content of powders other than component (A) in the cosmetic is preferably 10% by mass or less, more preferably 8% by mass, relative to the entire cosmetic. mass % or less, more preferably 5 mass % or less. On the other hand, from the viewpoint of texture adjustment, the content of powders other than component (A) in the cosmetic may be, for example, 0.1% by mass or more with respect to the whole cosmetic.

Cosmetics may further comprise a hydrophobic acrylic polymer. Specifically, the hydrophobic acrylic polymer is a hydrophobic polymer having a glass transition point (Tg) of 30° C. or higher when 1 mass % or more is dissolved in ethanol at 25° C. The hydrophobic acrylic polymer may be any of anionic polymer, cationic polymer, and nonionic polymer. Examples of the hydrophobic acrylic polymer include the following cationic polymers, anionic polymers, and nonionic polymers, and more specifically, include monomers that can be polymerized with an acrylic polymer, and Copolymers of acrylamide or styrene containing straight chain or branched alkyl groups having 1 to 12 carbons or 3 to 6 carbons, more specifically, hydrophobic polymer. Examples of the hydrophobic cationic polymer include polymers obtained by polymerizing styrene monomers and dimethylaminopropylacrylamide (DMAPAA) monomers. Examples of commercially available hydrophobic anionic polymers include Tilamar Fix A1000 (manufactured by DSM Corporation), Ultra Hold Strong (manufactured by BASF Corporation), and Plas-size L-9909B (manufactured by Huoying Chemical Co., Ltd.). As a commercial item of a hydrophobic nonionic polymer, PVB (model number BM-1, Sekisui Chemical Co., Ltd. make) is mentioned, for example.

Also, from the viewpoint of improving water repellency and easiness of washing off with a surfactant composition, the content of the hydrophobic acrylic polymer is preferably 10% by mass or less, more preferably 8% by mass or less, based on the entire cosmetic, More preferably, it is 5 mass % or less. On the other hand, from the viewpoint of texture adjustment, the content of the hydrophobic acrylic polymer in the cosmetic may be, for example, 0.1 mass % or more with respect to the whole cosmetic.

Moreover, a gelling agent may be contained in this cosmetic. Specifically, it can be exemplified: dextrin palmitate, such as Rheopearl KL-2 manufactured by Chiba Flour Co., Ltd.; Butyl lauryl glutamine, for example, GP-1 manufactured by Ajinomoto Co., Ltd.

In addition, a propellant can be formulated in this cosmetic to be used as an aerosol spray. As the propellant, specifically, LPG (liquefied petroleum gas), DME (dimethyl ether), N ₂ (nitrogen gas), etc., which are usually formulated in cosmetics, can be used.

In addition, in addition to the above ingredients, cosmetics may also appropriately contain ingredients that are usually formulated in cosmetics. Examples of such components include: anti-dandruff agents; vitamin agents; bactericides; anti-inflammatory agents; preservatives; chelating agents; humectants; coloring agents such as dyes and pigments; Absorbent; Antioxidant; pH adjuster; Photocatalyst, etc.

On the other hand, the following ingredients may be included, that is, solid oil, water-soluble thickener, and non-volatile hydrocarbon oil (except ingredients (B) and (C)), but from the viewpoint of improving the stability of the preparation, it is preferable is not included. Specific examples of solid fats and oils include alcohols with 12 to 22 carbons, fatty acids with 12 to 22 carbons, monoalkyl glyceryl ethers with 14 to 22 carbons, waxes, esters, sterols, hydrocarbons, Among silicones that are solid at 25°C, those that are non-volatile and solid at 25°C. As a C12-C22 alcohol which is a nonvolatile solid at 25 degreeC, myristyl alcohol, cetyl alcohol, stearyl alcohol, behenyl alcohol, etc. are mentioned. Examples of fatty acids having 12 to 22 carbon atoms that are nonvolatile and solid at 25° C. include lauric acid, myristic acid, palmitic acid, stearic acid, and behenic acid. Examples of monoalkyl glyceryl ethers having 14 to 22 carbon atoms that are nonvolatile and solid at 25°C include monomyristyl glyceryl ether, monocetyl glyceryl ether, monostearyl glyceryl ether, Monobehenyl Glyceryl Ether, etc. Examples of non-volatile solid waxes at 25°C include beeswax, candellia wax, carnauba wax, bay fruit wax, jojoba wax, lanolin, shellac wax, spermaceti wax, wood wax, and wax wax. wax. Examples of non-volatile solid esters at 25°C include glyceryl monomyristate, glyceryl monopalmitate, glyceryl monostearate, glyceryl monobehenate, and glycerol monooil Monoglycerides of fatty acids with 14 to 22 carbon atoms such as esters and glycerol monoisostearate; sorbitan monomyristate, sorbitan monopalmitate, sorbitan monostearate, sorbitol Sorbitan mono-fatty acid esters with 14-22 carbon atoms such as anhydride monobehenate; myristyl myristate; cholesterol isostearate; behenyl behenate; glyceryl trimyristate; paste Dextrin fatty acid esters such as fine palmitate, dextrin stearate, dextrin behenate, etc. Cholesterol, phytosterols, etc. are mentioned as a solid sterol which is nonvolatile at 25 degreeC. Examples of nonvolatile solid hydrocarbons at 25° C. include petrolatum, ceresin, ozokerite, microcrystalline wax, and candellila wax. Examples of non-volatile solid silicones at 25°C include dimethylpolysiloxane, cyclic dimethylpolysiloxane, methylphenylpolysiloxane, amino Modified silicone, carboxyl modified silicone, alcohol modified silicone, stearyl polydimethylsiloxane and other alkyl modified silicone, polyether modified silicone, fluorine modified silicone, trimethyl Silaneoxysilicic acid, trifluoroalkyldimethyltrimethylsiloxysilicic acid (for example, Silicone XS66-B8226, Momentive Advanced Materials Japan Co., Ltd.) and other silicones are solid at 25°C shape, and silicone powder. As the silicone powder, specifically, silicone resin powder, silicone elastomer powder, silicone resin-coated silicone elastomer powder, and the like may, for example, be mentioned. Examples of commercially available silicone powders include: TREFIL series (such as TREFIL E505C, TREFIL E508) manufactured by Dow Toray, or KSP series (such as KSP-100, KSP-101, KSP-102, KSP-105, KSP-1300) or KMP series (KMP-590, KMP-591, KMP-592).

Specific examples of water-soluble thickeners include cellulose derivatives, alkyl glyceryl ethers or polysaccharides modified with sulfoalkyl groups, polyvinyl alcohol, polyacrylic acid, polymethacrylic acid, carboxyvinyl polymers , (acrylic acid/alkyl acrylate (C10-30)) copolymer and other acrylic tackifiers, guar gum, hydroxyethyl guar gum, methyl guar gum, ethyl guar gum, dextrin, angle Carrageenan, highly polymerized polyethylene glycol with a number average molecular weight exceeding 20,000, starch, carboxymethyl chitin, polyglucosamine, etc. Specifically, cellulose derivatives are compounds in which at least a part of hydroxyl groups of cellulose is substituted, and salts thereof are also included. Examples of cellulose derivatives include cellulose ethers, cellulose esters, and alkali metal salts or ammonium salts thereof such as sodium or potassium. As the cellulose ether, specifically, carboxymethyl cellulose, carboxyethyl cellulose, carboxymethyl ethyl cellulose, methyl cellulose, ethyl cellulose, hydroxymethyl cellulose, hydroxymethyl cellulose, Salts such as ethyl cellulose, hydroxypropyl cellulose, benzyl cellulose and their sodium salts. Specific examples of the cellulose ester include cellulose nitrate, cellulose sulfate, cellulose acetate, cellulose propionate, cellulose butyrate, and other higher fatty acid cellulose. Specific examples of acrylic tackifiers include homopolymers of (meth)acrylic acid, (meth)acrylates, or (meth)acrylamides, or copolymers containing them. More specifically, Examples include carboxyvinyl polymers, alkyl-modified carboxyvinyl polymers, polyacrylamides, and copolymers containing at least one of acrylamide and acryldimethyltaurine as structural units. . Examples of carboxyvinyl polymers include: Carbopol 940, Carbopol 941, Carbopol 980, Carbopol 981 (manufactured by Noveon Inc.), AQPEC HV-501E (manufactured by Sumitomo Seika Co., Ltd.), Singtalen K, Singtalen L (manufactured by Wako Pure Chemical Industries, Ltd.) and the like. Examples of alkyl-modified carboxyvinyl polymers include alkyl acrylic acid and methacrylic acid esters (compared A copolymer having an alkyl group having 8 to 30 carbon atoms is preferred. The polyacrylamide may, for example, be Sepigel 305 (manufactured by Seppic). Examples of copolymers containing at least one of acrylamide and acryldimethyltaurine as structural units include copolymers of acrylamide and acrylate, hydroxyethyl acrylate and acryldimethyltaurine. Copolymer of taurate, copolymer of acrylate and acryl dimethyl taurate, copolymer of acrylic acid and acrylamide and acrylate and acryl dimethyl taurate (poly Acrylate-13) etc. The copolymer of acrylamide and acrylate may, for example, be Sepiplus 265 (manufactured by Seppic). Examples of the copolymer of hydroxyethyl acrylate and acryldimethyl taurate include Simulgel FL, Simulgel NS, Sepiplus S, and Sepinov EMT 10 (the above are manufactured by Seppic). As a copolymer of acrylate and acryldimethyltaurate, Simulgel EG (manufactured by Seppic) may be mentioned. The copolymer (polyacrylate-13) of acrylic acid, acrylamide, acrylate, and acryldimethyltaurate may, for example, be Sepiplus 400; manufactured by Seppic Corporation.

Specific examples of non-volatile hydrocarbon oils (excluding components (B) and (C)) include squalene, squalane, liquid paraffin, liquid isoparaffin, heavy liquid isoparaffin, α- Olefin oligomers, naphthenes, polybutenes, petrolatum, paraffin waxes, microcrystalline waxes, polyethylene waxes, ozokerite waxes, etc.

Next, the manufacturing method of cosmetics is demonstrated. Cosmetics can be obtained, for example, by formulating components (A) and (B) and other appropriate components in a predetermined order, and sufficiently dispersing component (A) in component (B).

In this embodiment, cosmetics can be used, for example, in hair or skin treatment methods. Specifically, the processing method in this embodiment includes the following steps (i) and (ii), and step (ii) is performed after step (i). (i) The step of applying the cosmetic in this embodiment to hair or skin (ii) Step of evaporating component (B) from hair or skin

Step (i) can be, for example, a step of applying the cosmetic to the hair or skin by smearing or spraying. When the cosmetic is applied to hair, the cosmetic:hair mass ratio (bath ratio) is preferably at least 0.05, more preferably at least 0.1, still more preferably at least 0.25, still more preferably at least 0.5, and Preferably it is 5.0 or less, more preferably 3.0 or less, still more preferably 1.5 or less, still more preferably 1.0 or less. The hair to be treated may be the whole hair or a part thereof. When the object of application is the skin, the application amount when using both hands is preferably about 1 g. Regarding the application method, you can take an appropriate amount with your fingers, or put an appropriate amount of cosmetics on a comb, brush, brush, sponge, etc., or directly apply to the application site. Moreover, it is preferable to apply evenly, for example, it can be spread with fingers, or a comb, brush, brush, sponge and other props after application. Step (ii) can be, for example, a step of naturally drying the hair or skin to which the cosmetic is applied at normal temperature (25° C.). Also, the hair or skin to which the cosmetic is applied can be shaken, or the hair or skin can be blown to promote evaporation. The dosage form of the cosmetic of this embodiment is not limited, for example, it can be in the form of foam, hair dye cream, gel, mist, aerosol spray, cream, wax, lotion, roll-on lotion, tablet, etc. A method in which the cosmetic is applied to the entire hair or skin in the form of a mist or aerosol spray, followed by drying with a hair dryer or the like is preferred.

After step (ii), the treatment method may further include step (iii): applying a composition containing a surfactant and washing with water. As an application method, for example, painting or spraying may be mentioned. As a composition containing a surfactant, specifically, a composition generally used as a hair cleanser or a skin cleanser may be mentioned, for example, it is in the form of a liquid, a foam, or a mist, and it is preferably a liquid. In addition, the surfactant, for example, may be a component commonly used in hair cleansers or skin cleansers, and preferably includes an anionic surfactant. As an anionic active agent, it is preferably those listed below, including One or more than two types in the group formed.

Examples of anionic surfactants include: sulfate ester salts, sulfosuccinate salts, sulfonates, higher fatty acid salts, phosphate ester salts, amino acid-based surfactants, alkyl ether carboxylate salts, etc. salt. Specifically, alkyl sulfate, alkenyl sulfate, polyoxyalkylene alkyl ether sulfate, polyoxyalkylene alkenyl ether sulfate, polyoxyalkylene alkylphenyl ether Sulfate salts with hydrophobic parts such as sulfates; Alkyl sulfosuccinate, alkyl polyoxyalkylene sulfosuccinate, alkane sulfonate, acyl isethionate, acyl methyl taurate, etc. have hydrophobic parts Sulfonate; Higher fatty acid salts with carbon numbers of 8 to 16; Alkyl phosphates, polyoxyalkylene alkyl ether phosphates, etc. Phosphate ester salts having hydrophobic moieties, etc.

Among them, the anionic surfactant is preferably Sodium lauryl sulfate and other alkyl sulfates, polyoxyethylene lauryl ether sulfate and other polyoxyethylene alkyl ether sulfates, potassium laurate and other higher fatty acid salts with carbon numbers of 8 to 16, lauryl-2 sulfosuccinic acid Alkyl sulfosuccinate salts such as sodium.

Before step (ii), the treatment method may further include step (iv): applying a composition containing a surfactant and washing with water. As an application method, for example, painting or spraying may be mentioned. As a composition containing a surfactant, concretely, a composition generally used as a hair conditioner or a skin care agent can be mentioned, for example, it is liquid, foam, or mist, and liquid is preferable. In addition, the surfactant can be, for example, a component commonly used in hair cleansers or skin cleansers, and preferably includes a cationic surfactant. One or two or more of the group formed by etc.

Specific examples of cationic surfactants include: alkyltrimethylammonium salts, alkoxyalkyltrimethylammonium salts, dialkyldimethylammonium salts, alkyldimethylamines, and salts thereof , alkoxyalkyldimethylamine and its salt, alkylamidoamine and its salt, etc. As the cationic surfactant, more specifically, monoalkyltrimethylammonium chloride, dialkyldimethylammonium chloride, monoalkoxyalkyltrimethylammonium chloride, and bromine One or more of the group consisting of monoalkyltrimethylammonium. The cationic surfactant is preferably selected from behenyl trimethyl ammonium chloride, stearyl trimethyl ammonium chloride (stearyl trimethyl ammonium chloride), cetyl trimethyl ammonium chloride ( Cetyl Trimethyl Ammonium Chloride), Lauryl Trimethyl Ammonium Chloride (Lauryl Trimethyl Ammonium Chloride), Dialkyl (C12～C18) Dimethyl Ammonium Chloride and Octadecyl Chloride One or more of the group consisting of oxypropyltrimethylammonium.

In this embodiment, water repellency can be imparted to hair or skin by using a cosmetic. That is, the method of imparting water repellency to hair or skin in this embodiment includes, for example, applying the cosmetic of this embodiment to hair or skin, preferably including applying the cosmetic of this embodiment by smearing or spraying on hair or skin. Also, the method of imparting water repellency to hair or skin may include, for example, applying a base agent to the surface of hair or skin, and coating the cosmetic of the present embodiment from the base agent after applying the base agent. Specific examples of the base agent include hair or skin cosmetics such as conditioners and styling agents.

Also, in this embodiment, by using cosmetics, a water-repellent structure can also be produced on the hair surface or the skin surface. That is, the method for producing a water-repellent structure on the surface of hair or skin in this embodiment includes, for example, applying the cosmetic in this embodiment to hair or skin, preferably including applying the cosmetic of this embodiment to hair or skin by smearing or spraying. Cosmetics are applied to hair or skin.

Moreover, a water-repellent structure can also be obtained using the cosmetic material in this embodiment. Specifically, the water-repellent structure includes the cosmetic in this embodiment, and more specifically, includes a dried product of the cosmetic in this embodiment. In addition, the water-repellent structure is, for example, a structure obtained by applying the cosmetic material in this embodiment and drying it. The water-repellent structure is preferably formed on the hair or on the skin. The water-repellent structure can be obtained by, for example, applying the cosmetic in this embodiment to a substrate such as hair or skin by smearing or spraying, followed by drying. Also, before applying the cosmetic in this embodiment, the base agent may be applied to the base material, and in this case, the water-repellent structure may further contain the base agent component.

Regarding the arithmetic average roughness (Ra) of the water-repellent structure specified in JIS B0601; 2001, as shown in the examples, it is measured on a PP (polypropylene) board to improve the smoothness of hair or skin From the viewpoint of easiness of washing off with a surfactant composition, for example, it is 0.10 μm or more, preferably 0.20 μm or more, more preferably 0.50 μm or more. In addition, from the viewpoint of improving water repellency and suppressing whitening of hair or skin appearance, the arithmetic mean roughness (Ra) is, for example, 3.0 μm or less, preferably 2.5 μm or less, more preferably 2.0 μm or less.

(water repellency imparting agent) In this embodiment, cosmetics can be used as a water repellency imparting agent, for example. That is, in this embodiment, the water repellency imparting agent contains the above-mentioned components (A) and (B), and the content of the component (A) is 0.3 mass % or more and 10 mass % or less with respect to the cosmetic whole. Moreover, when the cosmetic contains the above-mentioned component (C), the content of the component (C) is 5.0% by mass or less with respect to the whole cosmetic, and when the cosmetic contains the above-mentioned component (D), the content of the component (D) is 5.0% by mass or less relative to the cosmetic. The whole material is 25% by mass or less. Regarding the composition of the water-repellent imparting agent, specifically, the constitution described above for cosmetics can be employed.

As mentioned above, although embodiment of this invention was described, these are illustrations of this invention, and various structures other than the above-mentioned can also be employ|adopted.

Regarding the above-mentioned embodiments, the present invention further discloses the following cosmetics, water-repellent imparting agents, water-repellent structures and production methods thereof, methods of imparting water-repellency to hair or skin, and hair or skin treatment methods. <1> A cosmetic containing the following components (A) and (B), and The content of the above-mentioned component (A) is not less than 0.3% by mass and not more than 10% by mass relative to the entire cosmetic material, When the cosmetic contains the following component (C), the content of the above-mentioned component (C) is 5.0% by mass or less with respect to the entire cosmetic, When this cosmetic contains the following component (D), content of the said component (D) is 25 mass % or less with respect to the whole cosmetic. (A) Hydrophobized microparticle zinc oxide or hydrophobized microparticle titanium oxide (B) Volatile solvents (C) Hydrophilic organic compound with fluidity at 25°C (D) water

<2> The cosmetic as described in <1>, wherein the total content of metal oxides other than zinc oxide and titanium oxide in component (A) is preferably 20% by mass or less, more preferably 15% by mass or less, More preferably, it is 10 mass % or less, and still more preferably, it is 5.0 mass % or less. <3> The cosmetic as described in <1> or <2>, wherein the average primary particle size of the component (A) is, for example, 0.1 nm or more, preferably 1 nm or more, more preferably 5 nm or more, and even more preferably Preferably at least 10 nm, and, for example, at most 1 μm, preferably at most 300 nm, more preferably at most 200 nm, further preferably at most 100 nm, further preferably at most 50 nm, further preferably at most 35 nm the following. <4> The cosmetic as described in any one of <1> to <3>, wherein the content of component (A) in the cosmetic is 0.3% by mass or more, preferably 0.5% by mass or more, based on the entire cosmetic , more preferably 0.8% by mass or more, and more preferably 10% by mass or less, preferably 9% by mass or less, more preferably 8% by mass or less, more preferably 7% by mass or less, and more preferably 6% by mass or less , and more preferably 4% by mass or less, especially preferably 3% by mass or less. <5> The cosmetic as described in any one of <1> to <4>, wherein component (B) is one selected from the group consisting of silicone, lower alcohols with 3 or less carbon atoms, and hydrocarbon oils Or two or more, more preferably one selected from the group consisting of saturated monohydric alcohols with a carbon number of 1 to 3, and chain and cyclic silicone oils with a boiling point of 260°C or less at 1013.25 hPa, or One or more of the group consisting of two or more silicones and hydrocarbon oils with flash points of 35°C to 87°C, more preferably selected from ethanol and decamethylcyclopentasiloxane 1 or more of the group consisting of , polydimethylsiloxane and isododecane. <6> The cosmetic as described in any one of <1> to <5>, wherein the content of the component (B) in the cosmetic is preferably at least 70% by mass, more preferably 75% by mass, based on the entire cosmetic % or more, more preferably 79 mass % or more, further preferably 85 mass % or more, further preferably 90 mass % or more, and, for example, 99.7 mass % or less, preferably 99.5 mass % or less, more preferably 99.0 mass % or less, More preferably, it is 98.0 mass % or less, More preferably, it is 95.0 mass % or less. <7> The cosmetic according to any one of <1> to <6>, wherein the mass ratio ((A)/(B)) of component (A) to component (B) is preferably 0.003 or more, More preferably, it is not less than 0.008, and it is more preferably not more than 0.20, more preferably not more than 0.15, still more preferably not more than 0.125, and still more preferably not more than 0.10. <8> The cosmetic as described in any one of <1> to <7>, wherein component (C) is preferably one or more of the following components (C1) to (C3), more preferably One or more selected from the group consisting of ethylhexyl methoxycinnamate, isopropyl palmitate, glycerin, polyether-modified silicone, and polyethylene glycol. (C1) Organic compounds whose hydrogen bond term δ _H of Hansen solubility parameter is 2.0 MPa ^1/2 or more (C2) Silicones with non-ionic hydrophilic groups or amine groups (except component (C1)) (C3) Polyols Polymer (excluding component (C1)) <9> The cosmetic according to any one of <1> to <8>, wherein the content of component (C) in the cosmetic is preferably 5.0 relative to the whole cosmetic Mass % or less, Preferably it is 3.0 mass % or less, More preferably, it is 1.0 mass % or less, More preferably, it is 0.1 mass % or less, Still more preferably, it is 0.01 mass % or less. <10> The cosmetic according to any one of <1> to <9>, wherein the mass ratio ((C)/(A)) of component (C) to component (A) is 0 or exceeds 0, For example, it may be 0.01 or more, and preferably 0.5 or less, more preferably 0.2 or less, still more preferably 0.1 or less, still more preferably 0.05 or less. <11> The cosmetic as described in any one of <1> to <10>, wherein the content of the component (D) in the cosmetic is, for example, 0.001% by mass or more, preferably 0.005% by mass relative to the entire cosmetic Above, more preferably at least 0.010% by mass, more preferably at least 0.10% by mass, still more preferably at least 0.50% by mass, and more preferably at most 25% by mass, preferably at most 20% by mass, more preferably at most 15% by mass or less, more preferably 10 mass % or less, still more preferably 5 mass % or less, still more preferably 3 mass % or less, particularly preferably 1 mass % or less. <12> The cosmetic according to any one of <1> to <11>, wherein the mass ratio ((D)/(A)) of component (D) to component (A) is 0 or More than 0, for example, may be 0.01 or more, and preferably 20 or less, more preferably 10 or less, still more preferably 5 or less, still more preferably 1 or less, still more preferably 0.1 or less. <13> The cosmetic as described in any one of <1> to <12>, wherein component (A) is included in component (B), and the average particle diameter of Z is preferably 30 nm or more, more preferably 50 nm Above, more preferably 100 nm or more, and more preferably 500 nm or less, more preferably 400 nm or less, and more preferably 300 nm or less in particle form dispersion. <14> The cosmetic as described in any one of <1> to <13>, which contains components other than components (A) to (D), preferably oil agents (components (B) and (C) ) except), more preferably, it contains hydrocarbon oils other than ingredients (B) and (C), ester oils other than ingredients (B) and (C), silicone oils other than ingredients (B) and (C) One or more of the group consisting of ketones, and more preferably at least one of octyldodecyl myristate and squalane. <15> The cosmetic material described in any one of <1> to <14>, which does not contain solid fats, water-soluble thickeners, and non-volatile hydrocarbon oils (excluding components (B) and (C)) either. <16> The cosmetic according to any one of <1> to <15>, which is a hair cosmetic. <17> The cosmetic material described in any one of <1> to <16>, which is foam, hair dye, gel, mist, aerosol spray, cream, wax, lotion, roll-on Or in the form of tablets. <18> A water-repellent imparting agent comprising the following components (A) and (B), wherein the content of the above-mentioned component (A) is 0.3% by mass or more and 10% by mass or less relative to the entire water-repellent imparting agent, When the water-repellent imparting agent contains the following component (C), the content of the above-mentioned component (C) is 5.0% by mass or less with respect to the entire water-repellent imparting agent, and when the water-repellent imparting agent contains the following component (D) , Content of the said component (D) is 25 mass % or less with respect to the whole said water repellency imparting agent. (A) Hydrophobized microparticle zinc oxide or hydrophobized microparticle titanium oxide (B) Volatile solvent (C) Hydrophilic organic compound with fluidity at 25°C (D) Water <19> a dial The water-based structure, which contains the dried cosmetics described in any one of <1> to <17>, preferably consists of dried cosmetics, the arithmetic mean roughness specified in JIS B0601; 2001 ( Ra) is, for example, 0.10 μm or more, preferably 0.20 μm or more, more preferably 0.50 μm or more, and for example, 3.0 μm or less, preferably 2.5 μm or less, more preferably 2.0 μm or less. <20> A method for producing a water-repellent structure on the surface of hair or skin, which includes applying the cosmetic as described in any one of <1> to <17> to hair or skin, preferably by Cosmetics are applied to the hair or skin by smearing or spraying. <21> A method for imparting water repellency to hair or skin, comprising applying the cosmetic as described in any one of <1> to <17> to hair or skin, preferably including applying Cosmetics are applied to hair or skin. <22> A hair or skin treatment method comprising the following steps (i) and (ii), and performing the above step (ii) after the above step (i). (i) A step of applying the cosmetic described in any one of <1> to <17> to the hair or skin (ii) A step of evaporating the above-mentioned component (B) from the above-mentioned hair or skin <23> such as <22> The treatment method described in the above-mentioned step (ii), which further includes step (iii): the step of applying a surfactant solution and washing with water. [Example]

(Examples 1-29, Comparative Examples 1-11) Cosmetics having the compositions shown in Tables 1 to 5 were prepared and evaluated. The preparation method and evaluation method of the cosmetics are shown below.

(Preparation method of cosmetics) According to the recipes described in Tables 1 to 5, the ingredients were mixed in the following order to prepare the cosmetics of each example. Component (A) and component (B) are mixed, component (C), component (D) and other components are prepared in the obtained mixture, and component (A) is fully dispersed in component (B) at room temperature.

(Evaluation method) Apply 0.3 g of the cosmetics shown in Table 1 to Table 5 (bath ratio 3:1) to the hair tress for evaluation (0.1 g, 23 cm freshly cut hair) and make it uniformly blended, and blow it with a hair dryer (manufactured by SHARP Co., Ltd., IB-HD095) hot air for 1 minute to dry. Thereafter, it was left still at 25° C. and 21% RH for 1 hour. However, in Examples 25, 26, and 27, the application amounts of cosmetics were set to 0.1 g, 0.05 g, and 0.01 g, respectively (bath ratios were 1:1, 0.5:1, and 0.1:1, respectively). "Water repellency", "appearance of hair strands", "hair smoothness", and "washing off with shampoo" immediately after application of cosmetics were evaluated according to the following evaluation criteria. Also, regarding some examples, "stability of the solution" was evaluated. The results are combined and shown in Tables 1 to 5.

(Water-repellent property) The water-repellent property was evaluated using the water absorption amount of the hair bundle for evaluation (the weight increase rate of the hair bundle) as an index. The measurement of the weight increase rate of hair tresses was performed in the following procedure. 1. The weight of the hair tress for evaluation treated in the evaluation method as described above was measured. The measurement was performed on three hair bundles, and the average value was set to W ₀ [g]. 2. Thereafter, the treated hair tresses were left in running water for 5 seconds with tap water (12° C.), and the weight was measured. The measurement was performed on three hair bundles, and the average value was set to W ₁ [g]. In addition, when water droplets remained on the surface, the hair tresses were shaken lightly by hand to remove them, and then measured. 3. Calculate the average value of the weight change in the above 1. and 2., and evaluate the amount of water absorbed by the hair based on the weight increase rate of the hair bundle. Hair bundle weight gain [%] = (W ₁ -W ₀ )/0.1*100

(appearance of hair) Regarding the appearance of hair (hair strands), five professional sensory inspectors were asked to visually evaluate the hair strands treated in the order described in the evaluation method, from "approximately the same as untreated hair" / "same as untreated hair". Select one of "slightly whiter than treated hair"/"slightly whiter than untreated hair"/"slightly whiter than untreated hair". The evaluation is divided into the following 4 stages, and the total score of 5 people is used for judgment. 4: About the same as untreated hair 3: Slightly whiter than untreated hair 2: Slightly whiter than untreated hair 1: Visibly whiter than untreated hair

(Smoothness of hair) The smoothness of hair was evaluated as follows. Three hair bundles treated in the order described in the evaluation method were combined to fix the hair roots, and a 0.3 g hair bundle was prepared. Five professional sensory inspectors were asked to use a wide-toothed comb (brand name: Finish comb No. 215 size) to comb the hair bundle 5 times from the root to the tip of the hair, and evaluate in 5 stages according to the following criteria. The total score of 5 people is used for judgment. 5: No knots can be felt 4: I don't feel knotted very much 3: neither knotted nor unknotted 2: It feels slightly knotted 1: Obvious feeling of knotting

(wash off with shampoo) For hair tresses that have been treated in the order described in the evaluation method, directly apply the following common shampoo solution 0.2 g/strand, after foaming for 30 seconds, rinse with running water at 35°C for 30 seconds, and dry with a hair dryer dry. After that, 5 sensory inspectors were asked to choose from "same touch as untreated hair"/"slightly dry and knotted"/"slightly dry and knotted"/"dry and knotted" Choose one. The evaluation is set as the following 4-stage evaluation, and the total score of 5 people is used for judgment. 4: The same smooth touch as untreated hair 3: Slightly dry, knotted 2: Slightly dry, knotted 1: Feeling dry and knotted

Composition ( mass % ) of ordinary shampoo (pH6.9 ) Sodium polyoxyethylene lauryl ether sulfate (Emal 170J, manufactured by Kao Corporation, active ingredient 70 mass%) 13.0 Coconut oil fatty acid monoethanolamide (Amisol CME, Sichuan Ken Fine Chemical Co., Ltd.) 0.6 coconut oil fatty acid amidopropyl carbonyl betaine (Amphitol 55AB, manufactured by Kao Corporation, active ingredient 30% by mass) 1.41 citric acid pH adjustment amount sodium benzoate 0.3 purified water balance

The pH value of ordinary shampoo was measured at room temperature (25° C.) using a pH meter F-52 manufactured by Horiba Manufacturing Co., Ltd.

(Z Average Particle Size) In some examples, the Z average particle size was measured using a particle size-zeta potential measuring device Zetasizer Nano ZS (manufactured by Malvern). Regarding the measurement conditions, about 3.0 mL of the cosmetic material to be measured was filled in PMMA (polymethylmethacrylate Esters) tank, placed in the measurement section, and measured at a temperature of 25°C. The measurement conditions of examples other than Examples 28 and 29 are shown below. (Measurement conditions) Sample-material: ZnO (RI: 2.00), TiO ₂ (RI: 2.493), SiO ₂ (RI: 1.45), Al ₂ O ₃ (RI: 1.63) Sample-dispersant: Ethanol (RI: 1.256 , Viscosity: 1.0960) Measurement - measurement angle: 173° backscattering (NIBS default value) measurement - measurement duration: automatic data processing - general (normal resolution)

In addition, the Z average particle size described in Examples 28 and 29 was measured using a particle size-zeta potential measuring device Zetasizer Nano ZS (manufactured by Malvern). As for the measurement conditions, about 3.0 mL of the hair cosmetic to be measured was filled in PMMA (polymethacrylic acid) after 1 hour (when a precipitate was confirmed, the sample was shaken 4 to 5 times by hand to disperse it). Methyl ester) tank, placed in the measurement section, and measured at a temperature of 25°C. The measurement conditions are shown below. (Measurement conditions) Sample-material: ZnO (RI: 2.00), TiO ₂ (RI: 2.493), SiO ₂ (RI: 1.45), Al ₂ O ₃ (RI: 1.63) Sample-dispersant: Isododecane ( RI: 1.421, Viscosity: 1.3500) Measurement - Measurement Angle: 173° Backscatter (NIBS default value) Measurement - Measurement Duration: Automatic Data Processing - Universal (Normal Resolution)

(Surface roughness) In some examples described in Table 1, 0.2 g of the cosmetics shown in Tables 1 and 2 were added dropwise on a PP (PPN-050502 manufactured by Polypropylene AS ONE) plate 2 cm x 2 cm. Let it stand for 2 hours under %RH to dry and form a water-repellent structure. Next, the surface roughness of the water-repellent structure obtained on the surface of the PP board was measured using a laser microscope "VK-8700" manufactured by Keyence Corporation at an objective magnification of 100× and a Z pitch of 0.1 μm (measurement mode: surface Under the condition of shape, measuring area: surface), 10 parts of arbitrarily selected 3.0 μm×3.0 μm area are measured, and the arithmetic mean roughness (Ra) is calculated according to JIS B0601; 2001. Furthermore, Ra was 0.04 μm when measured on the surface of an untreated PP substrate.

[Table 1] Table 1 Example 1 Example 2 Example 3 Example 4 Example 5 Example 6 Example 7 Example 8 Cosmetic display name (%) (%) (%) (%) (%) (%) (%) (%) (A) Zinc oxide, triethoxyoctylsilane*1 1 0.5 Zinc oxide, triethoxyoctylsilane*2 1 Zinc oxide, triethoxyoctylsilane*3 1 Zinc oxide, triethoxyoctylsilane*4 1 Zinc oxide, hydrogenated polydimethylsiloxane*5 1 Zinc oxide, hydrogenated polydimethylsiloxane*6 1 Titanium oxide, hydrated silica, triethoxyoctylsilane*7 1 0.5 (B) Ethanol*8 99 99 99 99 99 99 99 99 Z average particle size 141.5 nm 125.8 nm 245.9 nm 218.2 nm 192.0 nm 222.4 nm 133.4 nm - Weight gain rate of hair (water repellency) 1.90% 6.47% 3.27% 2.10% 14.70% 11.90% 3.50% 1.20% appearance of hair 16 15 16 13 19 16 12 13 Smoothness of hair 18 twenty four 18 18 19 19 14 16 Wash off with shampoo 20 20 16 15 20 20 12 14 Surface roughnessRa 1.49 μm 0.82 μm 0.74 μm 1.05 μm 0.95 μm 0.82 μm 0.86 μm - (A)/(B) 0.010 0.010 0.010 0.010 0.010 0.010 0.010 0.010 (C)/(A) 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 (D)/(A) 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0

[Table 2] Table 2 Example 9 Example 10 Example 11 Example 12 Example 13 Example 14 Example 15 Example 16 Example 17 Example 18 Example 19 Example 20 Example 21 Example 22 Example 23 Cosmetic display name (%) (%) (%) (%) (%) (%) (%) (%) (%) (%) (%) (%) (%) (%) (%) (A) Zinc oxide, triethoxyoctylsilane*1 1 1 1 10 10 0.5 5 7.5 10 10 10 1 1 1 1 Zinc oxide, triethoxyoctylsilane*2 Zinc oxide, triethoxyoctylsilane*3 Zinc oxide, triethoxyoctylsilane*4 Zinc oxide, hydrogenated polydimethylsiloxane*5 Zinc oxide, hydrogenated polydimethylsiloxane*6 Titanium oxide, hydrated silica, triethoxyoctylsilane*7 (B) Ethanol*8 99.5 95 92.5 90 89 85 98 94 89 79 Decamethylcyclopentasiloxane*9 99 Polydimethylsiloxane*10 99 Isododecane*11 99 82.5 82.5 (C) (C1) Ethylhexyl Methoxycinnamate*12 1 5 (C1) Isopropyl palmitate*13 (C1) Glycerin*14 (C2) PEG-12 Dimethicone*15 (C3) polyethylene glycol (Mw: 600)*16 other ingredients Octyldodecyl myristate*17 7.5 Squalane*18 7.5 (D) water 1 5 10 20 Weight gain rate of hair (water repellency) 0.53% 0.33% 0.67% 5.80% 1.80% 7.37% 0.03% 0.15% 0.067% 0.25% 15.40% 3.23% 1.20% 0.70% 7.17% appearance of hair 16 16 16 20 20 17 12 10 9 7 11 16 16 16 16 Smoothness of hair 18 15 18 25 25 twenty three 13 12 11 11 25 18 16 18 20 Wash off with shampoo 20 20 20 12 12 20 19 18 18 20 20 20 20 20 20 (A)/(B) 0.010 0.010 0.010 0.121 0.121 0.005 0.053 0.081 0.111 0.112 0.118 0.010 0.011 0.011 0.013 (C)/(A) 0 0 0 0 0 0 0 0 0 0.1 0.5 0 0 0 0 (D)/(A) 0 0 0 0 0 0 0 0 0 0 0 1 5 10 20

[table 3] table 3 Comparative example 1 Comparative example 2 Comparative example 3 Comparative example 4 Comparative Example 5 Comparative Example 6 Comparative Example 7 Comparative Example 8 Comparative Example 9 Cosmetic display name (%) (%) (%) (%) (%) (%) (%) (%) (%) (A) Zinc oxide, triethoxyoctylsilane*1 10 10 10 10 0.1 20 10 1 Zinc oxide, triethoxyoctylsilane*2 Zinc oxide, triethoxyoctylsilane*3 Zinc oxide, triethoxyoctylsilane*4 Zinc oxide, hydrogenated polydimethylsiloxane*5 Zinc oxide, hydrogenated polydimethylsiloxane*6 Titanium oxide, hydrated silica, triethoxyoctylsilane*7 (B) Ethanol*8 100 82.5 82.5 82.5 82.5 99.9 80 82.5 69 Decamethylcyclopentasiloxane*9 Polydimethylsiloxane*10 Isododecane*11 (C) (C1) Ethylhexyl Methoxycinnamate*12 7.5 (C1) Isopropyl palmitate*13 7.5 (C1) Glycerin*14 7.5 (C2) PEG-12 Dimethicone*15 7.5 (C3) polyethylene glycol (Mw: 600)*16 7.5 other ingredients Octyldodecyl myristate*17 Squalane*18 (D) water 30 Weight gain rate of hair (water repellency) 58.30% 22.20% 54.40% 51.40% 71.80% 36.70% 0.47% 21.20% 20.70% appearance of hair 20 18 7 18 7 20 5 12 16 Smoothness of hair 25 25 twenty one 25 twenty one 25 5 25 twenty two Wash off with shampoo 20 15 20 20 11 20 17 20 20 (A)/(B) 0.000 0.121 0.121 0.121 0.121 0.001 0.250 0.121 0.014 (C)/(A) - 0.75 0.75 0.75 0.75 0 0 0.75 0 (D)/(A) - 0 0 0 0 0 0 0 30

[Table 4] Table 4 Example 24 Example 25 Example 26 Example 27 Example 28 Example 29 Cosmetic display name (%) (%) (%) (%) (%) (%) (A) Zinc oxide, triethoxyoctylsilane*1 5 5 5 Zinc oxide, triethoxyoctylsilane*2 1 1 Zinc oxide, triethoxyoctylsilane*3 Zinc oxide, triethoxyoctylsilane*4 Zinc oxide, hydrogenated polydimethylsiloxane*5 Zinc oxide, hydrogenated polydimethylsiloxane*6 Zinc oxide, triethoxyoctylsilane*19 1 Titanium oxide, hydrated silica, triethoxyoctylsilane*7 Fumed silica, trimethylsilyl*20 Fumed alumina, triethoxyoctylsilane*21 (B) Ethanol*8 99 95 95 95 Decamethylcyclopentasiloxane*9 Polydimethylsiloxane*10 Isododecane*11 Isododecane*29 99 98.99 (C) (C1) Ethylhexyl Methoxycinnamate*12 (C1) Isopropyl palmitate*13 (C1) Glycerin*14 (C2) PEG-12 Dimethicone*15 (C3) polyethylene glycol (Mw: 600)*16 other ingredients Octyldodecyl myristate*17 Squalane*18 (D) water 0.00 0.01 Z average particle size 320.7 nm 2161 nm 1706 nm Weight gain rate of hair (water repellency) 15.40% 2.20% 3.90% 19.00% appearance of hair 12 13 16 20 Smoothness of hair twenty four 14 16 25 Wash off with shampoo 20 19 20 20 bath ratio 3:1 1:1 0.5:1 0.1:1 3:1 3:1 (A)/(B) 0.010 0.053 0.053 0.053 0.010 0.010 (C)/(A) 0 0 0 0 0 0 (D)/(A) 0 0 0 0 0 0.01

[table 5] table 5 Comparative Example 10 Comparative Example 11 Cosmetic display name (%) (%) (A) Zinc oxide, triethoxyoctylsilane*1 Zinc oxide, triethoxyoctylsilane*2 Zinc oxide, triethoxyoctylsilane*3 Zinc oxide, triethoxyoctylsilane*4 Zinc oxide, triethoxyoctylsilane*19 Zinc oxide, hydrogenated polydimethylsiloxane*5 Zinc oxide, hydrogenated polydimethylsiloxane*6 Titanium oxide, hydrated silica, triethoxyoctylsilane*7 Fumed silica, trimethylsilyl*20 1 Fumed alumina, triethoxyoctylsilane*21 1 (B) Ethanol*8 99 99 Decamethylcyclopentasiloxane*9 Polydimethylsiloxane*10 Isododecane*11 (C) (C1) Ethylhexyl Methoxycinnamate*12 (C1) Isopropyl palmitate*13 (C1) Glycerol wood 14 (C2) PEG-12 Dimethicone*15 (C3) polyethylene glycol (Mw: 600)*16 other ingredients Octyldodecyl myristate*17 Squalane*18 (D) water Z average particle size 190.6 nm 2856 nm Weight gain rate of hair (water repellency) 1.37% 2.00% appearance of hair 20 20 Smoothness of hair 5 10 Wash off with shampoo 5 5 bath ratio 3:1 3:1 (A)/(B) 0 0 (C)/(A) (D)/(A)

In Tables 1 to 5, the compounded amount of each component is an effective amount, and "(%)" is "(mass %)". Details of the components described in Tables 1 to 5 are as follows. In the description of the following component (A), the numerical value in parentheses is the average primary particle diameter. (ingredient (A)) ＊1 Zinc oxide, triethoxyoctylsilane: Triethoxyoctylsilane (OTS) treated zinc oxide, manufactured by Sakai Chemical Industry Co., Ltd., FINEX-50-OTS (20 nm) ＊2 Zinc oxide, triethoxyoctylsilane: Triethoxyoctylsilane (OTS) treated zinc oxide, manufactured by Sakai Chemical Industry Co., Ltd., FINEX-30-OTS (35 nm) ＊3 Zinc oxide, triethoxyoctylsilane: Triethoxyoctylsilane (OTS) treated zinc oxide, manufactured by Daito Chemical Industry Co., Ltd., OTS ZnO-660DM (25 nm) *4 Zinc oxide, triethoxyoctylsilane: Triethoxyoctylsilane (OTS) treated zinc oxide, manufactured by Daito Chemical Industry Co., Ltd., OTS-5 MZ-500 (25 nm) *5 Zinc oxide, hydrogenated polydimethylsiloxane: Hydrogenated polydimethylsiloxane-treated zinc oxide, manufactured by Sakai Chemical Industry Co., Ltd., FINEX-50S-LP2 (20 nm) *6 Zinc oxide, hydrogenated dimethicone: Zinc oxide treated with hydrogenated dimethicone, manufactured by Sakai Chemical Industry Co., Ltd., NANOFINE 50-LP (20 nm) ＊7 Titanium oxide, hydrated silica, triethoxyoctylsilane: Triethoxyoctylsilane (OTS) treated titanium oxide, manufactured by Sakai Chemical Industry Co., Ltd., STR-100W-OTS (15 nm) ＊19 Zinc oxide, triethoxyoctylsilane: Zinc oxide (280 nm) treated with triethoxyoctylsilane, surface treated with triethoxyoctylsilane on fine zinc oxide (manufactured by Sakai Chemical Industry Co., Ltd.) .

(ingredient (B)) ＊8 Ethanol: 99 degrees synthetic alcohol, manufactured by Japan Synthetic Alcohol Co., Ltd. *9 Decamethylcyclopentasiloxane (D5): DOWSIL (trademark) SH 245 Fluid, manufactured by Dow Toray Corporation *10 Dimethicone: Silicone KF-96L-2CS, manufactured by Shin-Etsu Chemical Co., Ltd. *11 Isododecane: MARUKASOL R, manufactured by Maruzen Petrochemical Co., Ltd. *29 Isododecane: Creasil (trademark) ID CG, manufactured by The Innovation Company, with a moisture content of less than 50 ppm

(Component (C)) *12 (C1) Ethylhexyl methoxycinnamate: UVINUL MC80, manufactured by BASF Corporation, δ _H = 4.5 MPa ^1/2 *13 (C1) Isopropyl palmitate: EXCEPARL IPP, Manufactured by Kao Corporation, δ _H = 2.5 MPa ^1/2 *14 (C1) Glycerin: Concentrated glycerin for cosmetics, manufactured by Kao Corporation, δ _H = 28.5 MPa ^1/2 *15 (C2) Polyether modified silicone (PEG- 12 Dimethicone): DOWSIL SH 3775 M FLUID, manufactured by Dow Toray Co. *16 (C3) polyethylene glycol: PEG-600, manufactured by Sanyo Chemical Industry Co., Ltd., Mw: 600

(Others) *17 Octyldodecyl myristate: MOD, manufactured by Jinei Chemical Co., Ltd., δ _H = 1.9 MPa ^1/2 *18 Squalane: NIKKOL sugar squalane, manufactured by Nikko Chemical Co., Ltd., δ _H ＝0.0 MPa ^1/2 *20 fumed silica, trimethylsilyl group: hexamethyldisilazane treated silica, Japan Airotech, AEROSIL RX200 (12 nm) *21 fumed alumina, trimethylsilazane Ethoxyoctylsilane: Triethoxyoctylsilane treated alumina (18 nm), surface treated with Triethoxyoctylsilane in SpectrAl (trademark) 100 Fumed Alumina (Cabot Specialty Chemicals Inc).

According to Tables 1 to 5, the cosmetics obtained in each of the examples are excellent in the balance of effects of imparting water repellency to hair, appearance of hair, smoothness of hair, and washing off with shampoo. Moreover, the cosmetics in each Example are suitable as hair cosmetics.

(recipe example) The formula of cosmetics is shown below. The cosmetics of the formulation examples are suitable as, for example, hair cosmetics.

(Formulation Example 1) Cosmetic Indicated Name ( Mass %) Zinc Oxide, Triethoxycaprylylsilane*1 1 Polymethylsilsesquioxane*22 1 Ethanol*8 98

(Formulation Example 2) Cosmetic Name ( Mass %) Zinc Oxide, Triethoxycaprylylsilane*1 1 (Vinyl Dimethicone/Methicone Silsesquioxane) Crosslinking Polymer*23 1 Ethanol*8 98

(Formulation example 3) Cosmetic display name ( mass %) Zinc oxide, triethoxyoctylsilane*1 1 Trifluoroalkyldimethyltrimethylsiloxysilicic acid, cyclopentasiloxane, hydrogenated polysiloxane Isobutylene*24 1 Ethanol*8 98

(Recipe Example 4) Type of Roll-On Lotion Cosmetic Name ( Mass %) Zinc Oxide, Triethoxycaprylyl Silane*1 1 Ethanol*8 99 Specifically, the cosmetics in this example are hair cosmetics. When used in a commercially available container, it spreads well evenly.

(Recipe example 5) Oil gel Cosmetics display name ( mass %) Zinc oxide, Triethoxycaprylylsilane*1 1 Dextrin palmitate*25 2 Isododecane*11 97

(Recipe example 6) Cosmetic display name ( mass %) Details ( mass %) stock solution 50 zinc oxide, triethoxyoctylsilane*1 1 ethanol*8 99 propellant 50 LPG*26 100

(Recipe Example 7) Cosmetics Display Name ( Mass %) Details ( Mass %) Stock Solution 50 Zinc Oxide, Triethoxycaprylylsilane*1 1 Ethanol*8 99 Propellant 50 LPG*27 30 DME*28 70

The details of the components other than the above among the components described in the recipe examples are as follows. *22 Polymethylsilsesquioxane: KMP-590, manufactured by Shin-Etsu Chemical Co., Ltd. *23 (Vinyl Dimethicone/Methicone Silsesquioxane) Crosspolymer: KSP-105, manufactured by Shin-Etsu Chemical Co., Ltd. *24 Trifluoroalkyldimethyltrimethylsiloxysilicic acid, cyclopentasiloxane, hydrogenated polyisobutylene: Silicone XS66-B8226, manufactured by Momentive Advanced Materials Japan Co., Ltd. ＊25 Dextrin palmitate: Rheopearl KL-2, manufactured by Chiba Flour Milling Co., Ltd. ＊26 LPG: LPG (0.27 MPa), manufactured by Taiyo Petroleum Gas Company *27 LPG: Liquefied petroleum gas (LPG20°C 0.20), manufactured by Koike Chemical Co., Ltd. *28 DME: Dimethyl ether, manufactured by Mitsui Chemicals

Claims (12)

A cosmetic containing the following components (A) and (B), and The content of the above-mentioned component (A) is not less than 0.3% by mass and not more than 10% by mass relative to the entire cosmetic material, When the cosmetic contains the following component (C), the content of the above-mentioned component (C) is 5.0% by mass or less with respect to the entire cosmetic, When the cosmetic contains the following component (D), the content of the above-mentioned component (D) is 25% by mass or less with respect to the entire cosmetic, (A) Hydrophobized microparticle zinc oxide or hydrophobized microparticle titanium oxide (B) Volatile solvents (C) Hydrophilic organic compound with fluidity at 25°C (D) water. The cosmetic according to claim 1, wherein the above-mentioned component (B) is one or two or more selected from the group consisting of silicone, lower alcohols with 3 or less carbon atoms, and hydrocarbon oils. The cosmetic according to claim 1 or 2, wherein the mass ratio ((C)/(A)) of the above-mentioned component (C) to the above-mentioned component (A) is 0.5 or less. The cosmetic according to claim 1 or 2, wherein the mass ratio ((A)/(B)) of the above-mentioned component (A) to the above-mentioned component (B) is 0.003 to 0.20. The cosmetic according to claim 1 or 2, wherein the mass ratio ((D)/(A)) of the above-mentioned component (D) to the above-mentioned component (A) is 20 or less. The cosmetic according to claim 1 or 2, wherein the above-mentioned component (A) is dispersed in the above-mentioned component (B) in the form of particles having a Z average particle diameter of 30 nm to 500 nm. A water repellency imparting agent comprising the following components (A) and (B), and Content of the said component (A) is 0.3 mass % or more and 10 mass % or less with respect to the said water repellency imparting agent whole, When the water-repellent imparting agent contains the following component (C), the content of the above-mentioned component (C) is 5.0% by mass or less with respect to the entire water-repellent imparting agent, When the water repellency imparting agent contains the following component (D), the content of the above component (D) is 25% by mass or less with respect to the entire water repellency imparting agent, (A) Hydrophobized microparticle zinc oxide or hydrophobized microparticle titanium oxide (B) Volatile solvents (C) Hydrophilic organic compound with fluidity at 25°C (D) water. A water-repellent structure, which includes the dried cosmetic material according to any one of claims 1 to 6, and The arithmetic average roughness (Ra) specified in JIS B0601; 2001 is 0.10 μm or more and 3.0 μm or less. A method of manufacturing a water-repellent structure on the surface of hair or skin, which includes applying the cosmetic material according to any one of claims 1 to 6 to hair or skin. A method of imparting water repellency to hair or skin, comprising applying the cosmetic according to any one of claims 1 to 6 to hair or skin. A treatment method for hair or skin, comprising the following steps (i) and (ii), and performing the above step (ii) after the above step (i), (i) The step of applying the cosmetic material according to any one of claims 1 to 6 to hair or skin (ii) A step of evaporating the above-mentioned component (B) from the above-mentioned hair or skin. The processing method according to claim 11, after the step (ii) above, further includes step (iii): applying a surfactant solution and rinsing with water.