KR102190042B1 - Cosmetic composition - Google Patents

Abstract

The present invention (a) fine powder; And (b) a cosmetic composition containing an aqueous phase, wherein the composition has a viscosity of 2,500 mPa·s or less, preferably 1,000 mPa·s or less, more preferably 800 mPa·s or less, and the fine powder phase is pearlite, aluminum chlorohydrate. It relates to a cosmetic composition containing at least one powder selected from the group consisting of porous silica, amorphous hollow silica, silica silylate and magnesium carbonate in an amount greater than 1% by weight based on the total weight of the composition. The cosmetic composition according to the present invention can be a homogeneous aqueous powder dispersion when used, and can realize both a refreshing feel and a long-lasting cosmetic effect when used.

Description

Cosmetic composition {COSMETIC COMPOSITION}

The present invention relates to a cosmetic composition containing a fine powder phase and an aqueous phase, wherein the fine powder phase, for example, relates to a cosmetic composition containing a powder that can be uniformly distributed in the composition by shaking the composition.

Until now, various types of cosmetic compositions have been used for skin, especially facial makeup. For example, foundations in the form of water-in-oil or oil-in-water emulsions have been used. A foundation in the form of a water-in-oil emulsion can provide a good lasting effect, but cannot provide a fresh feeling. On the other hand, the foundation in the form of an oil-in-water emulsion can provide a fresh feeling, but cannot provide an excellent lasting effect. Therefore, it was difficult for the cosmetic composition to exist in the form of an emulsion that solidifies both of an excellent lasting effect and a fresh feeling when used.

Typically, another cosmetic composition, for example in the form of an aqueous powder dispersion comprising powder and water, referred to in Japan as "Mizu-Oshiroi", has also been used for skin, especially facial makeup . When not in use, this type of cosmetic composition exists divided into two phases, an aqueous phase and a powdery phase. In use, such cosmetic compositions can be uniformly dispersed in the aqueous phase by shaking, for example, by hand. The aqueous powder dispersion thus formed contains a continuous aqueous phase containing water, giving the skin a fresh feel during use.

However, since aqueous powder dispersions generally contain no or only small amounts of oil, the skin has a long-lasting cosmetic effect on the skin, especially the face, and especially the skin with increased sebum secretion during the day (combination or oily skin). ) And it is often difficult to provide a long-lasting cosmetic effect to skin exposed to extreme temperature and/or humidity conditions, such as in ASEAN. One of the possibilities to improve the long-lasting effect could be the addition of oil to the aqueous powder dispersion. However, the addition of oil provides an oil layer to the cosmetic composition. When not in use, such an oil layer may impair the aesthetics of a cosmetic composition in the form of two layers of water and powder. In addition, when the cosmetic composition contains oil, it may be difficult to form a uniform powder dispersion during use even if the cosmetic composition is thoroughly shaken. The addition of surfactants can help in uniformly dispersing the oil into an aqueous powder dispersion. However, this leads to the formation of an oil-in-water emulsion, so that the provision of a long-lasting cosmetic effect on the skin, in particular the face, is not realized. In addition, the addition of surfactants can lead to undesirable irritation to the skin.

One of the objects of the present invention may be an aqueous powder dispersion, and even if the cosmetic composition does not contain oil or surfactant, or contains only a small amount, it has a fresh feeling during use, even under extreme conditions of temperature and/or humidity, and a matte effect and It is to provide a cosmetic composition consisting essentially of an aqueous phase and a fine powder phase, which can realize both long-lasting cosmetic effects such as glare control.

Here, "essentially" means that the composition of the present invention contains a total of more than 98% by weight of the aqueous phase and the finely divided phase, preferably more than 99% by weight of the total, more preferably a total of 100% by weight of the aqueous and finely divided phases. Means that.

The above object of the present invention can be achieved by a cosmetic composition containing:

(a) fine powder; And

(b) an aqueous phase,

here,

The viscosity of the composition is 2,500 mPa·s or less, preferably 1,000 mPa·s or less, more preferably 800 mPa·s or less,

The fine powder phase contains at least one powder selected from the group consisting of perlite, aluminum chlorohydrate, porous silica, amorphous hollow silica, silica silylate, and magnesium carbonate in an amount of more than 1% by weight based on the total weight of the composition.

In a preferred embodiment, the finely divided phase contains perlite. In another preferred embodiment, the finely divided phase contains perlite and silica silylate.

The powder preferably has a particle size distribution such that the median particle size of the powder is less than 30 μm, preferably less than 25 μm, more preferably less than 20 μm, and even more preferably less than 15 μm. Do.

It is also preferred that the powder has a particle size distribution such that 90% of the powder particles are less than 55 μm, preferably less than 50 μm, more preferably less than 45 μm.

The amount of the powder may be 2% by weight or more, preferably 3% by weight or more, more preferably 5% by weight or more, even more preferably 10% by weight or more, most preferably 15% by weight or more, based on the total weight of the composition.

The finely divided phase in the cosmetic composition according to the invention may contain one or more additional fillers and/or pigments.

Additional fillers are selected from the group consisting of talc, kaolin, mica, solid silica, sericite, calcined talc, calcined mica, calcined sericite, synthetic mica, bismuth oxychloride, barium sulfate, boron nitride, calcium carbonate, magnesium hydrogen carbonate and hydroxyapatite. Can be. In a preferred embodiment, the additional filler is calcium carbonate.

The pigment is from the group consisting of titanium dioxide, zirconium oxide, cerium oxide, zinc oxide, iron oxide (black, yellow or red), chromium oxide, manganese violet, ultramarine blue, chromium hydrate, ferric blue and metal powder, preferably oxidized. Titanium, iron oxide and mixtures thereof.

The amount of the fine powder in the cosmetic composition according to the present invention may be 3 to 40% by weight, preferably 5 to 35% by weight, and more preferably 10 to 30% by weight, based on the total weight of the composition.

The aqueous phase in the cosmetic composition according to the present invention may contain one or more hydrophilic organic solvents.

The amount of the aqueous phase in the cosmetic composition according to the present invention may be 30 to 97% by weight, preferably 35 to 85% by weight, more preferably 40 to 75% by weight, based on the total weight of the composition.

The cosmetic composition according to the present invention may contain one or more oils in an amount of less than 1% by weight based on the total weight of the composition. In a preferred embodiment, the composition does not contain any oil.

The cosmetic composition according to the present invention may contain one or more surfactants or gelling agents in an amount of less than 1% by weight based on the total weight of the composition. In a preferred embodiment, the composition does not contain any surfactant.

The present invention also relates to a cosmetic method for reducing skin makeup, in particular matting or gloss (such as glare), comprising the following steps:

Applying the cosmetic composition according to the present invention.

The composition may be shaken in a container to resuspend the powder immediately prior to application.

As a result of diligent research, the inventors of the present invention have found that it consists essentially of an aqueous phase and a fine powder phase, and when used, may be an aqueous powder dispersion, and by introducing one or more selected specific powders in the fine powder phase, the cosmetic composition does not contain oil or surfactant, or Even if it contains only a small amount, it achieves the above object by providing a cosmetic composition for the skin, especially the face, which can realize both a long-lasting cosmetic effect and a fresh feeling when used even under extreme conditions of temperature and/or humidity. Found that it is possible.

Accordingly, the present invention relates to a cosmetic composition containing:

(a) fine powder; And

(b) an aqueous phase,

here,

The viscosity of the composition is 2,500 mPa·s or less, preferably 1,000 mPa·s or less, more preferably 800 mPa·s or less,

The fine powder phase contains at least one powder selected from the group consisting of perlite, aluminum chlorohydrate, porous silica, amorphous hollow silica, silica silylate, and magnesium carbonate in an amount of more than 1% by weight based on the total weight of the composition.

The cosmetic composition according to the present invention has long-lasting cosmetic effects such as a fresh feeling due to water in the aqueous phase, and a matte effect even under extreme conditions of temperature and/or humidity due to the selected specific powder(s) in the fine powder phase. You can provide both at the same time.

Hereinafter, the cosmetic composition according to the present invention will be described in more detail.

[Cosmetic composition]

The cosmetic composition according to the present invention contains:

(a) differential phase, and

(b) aqueous phase.

When not in use, the finely divided phase and the aqueous phase in the cosmetic composition according to the present invention form two distinct phases, and generally, the finely divided layer forms two layers which precipitated below the aqueous phase layer.

In use, the cosmetic composition according to the present invention can be shaken by hand, for example, to form an aqueous powder dispersion, preferably a homogeneous dispersion of the powder in the aqueous continuous phase.

In a preferred embodiment, the cosmetic composition according to the invention is shaken by hand prior to application to the skin to form an aqueous powder dispersion.

The fine powder phase in the cosmetic composition according to the present invention contains at least one powder selected from the group consisting of perlite, aluminum chlorohydrate, porous silica, amorphous hollow silica, silica silylate and magnesium carbonate. A combination of selected powders can be used. In a preferred embodiment, the cosmetic composition contains at least perlite.

As porous silica or amorphous hollow silica, the following may be mentioned:

-Porous silica microspheres, especially those sold by Asahi Glass under the trade names Sunsphere ^® H53 and Sunsphere ^® H33 (oil absorption is 3.70 ml/g); MSS-500-3H from Kobo;

-Polydimethylsiloxane-coated amorphous silica microspheres, in particular sold under the trade name SA Sunsphere ^® H33 (oil absorption is 2.43 ml/g);

-Silica silylate powder, especially sold by Dow Corning under the trade name Dow Corning VM-2270 Aerogel Fine Particles (oil absorption is 10.40 ml/g);

-Amorphous hollow silica particles, especially those sold by Kobo under the trade name Silica Shells (oil absorption is 5.50 ml/g); And

-Precipitated silica powder surface-treated with mineral wax, for example precipitated silica treated with polyethylene wax, especially sold by the company Evonik-Degussa under the trade name Acematt OR 412 (oil absorption is 3.98 ml/g).

As magnesium carbonate, the following may be mentioned:

-A product sold by Buschle & Lepper under the brand name Tipo Carbomagel (oil absorption is 2.14 ml/g).

It is preferable that the powder contained in the fine powder is pearlite. The pearlite particles that can be used in the present invention may include those commercially available from WORLD MINERALS under the trade names Optimat 2550 OR, 2040 OR and 1430 OR (oil absorption is 2.4 ml/g).

In a particular embodiment, the cosmetic composition contains at least perlite and silica silylate powder.

The particles of the specific powder selected may have a porous or hollow structure, and thus can effectively absorb oily substances such as water or sebum. Thus, the selected specific powder can provide a long-lasting cosmetic effect, in particular a long-lasting cosmetic effect, such as a matte effect, against water such as sweat and oily substances such as sebum.

It is preferable that the selected specific powder has a relatively small particle size in terms of feeling of use and the like. Accordingly, the powder preferably has a particle size distribution such that the median particle size of the powder is less than 30 μm, preferably less than 25 μm, more preferably less than 20 μm, even more preferably less than 15 μm. Here, “the median particle size of the powder is less than 25 μm” means that 50% of the powder particles have a particle size of less than 25 μm. The particle size can be measured by laser diffraction, and this particle size is based on the volume diameter.

In terms of feeling of use and the like, it is also preferable that the selected specific powder has a relatively narrow particle size distribution. Therefore, it is preferred that the powder has a particle size distribution in which 90% of the powder particles are less than 55 μm, preferably less than 50 μm, more preferably less than 45 μm.

The amount of the selected specific powder in the fine powder phase is not particularly limited. The amount of the powder may be 2% by weight or more, preferably 3% by weight or more, more preferably 5% by weight or more, even more preferably 10% by weight or more, most preferably 15% by weight or more, based on the total weight of the composition. As the amount of the selected specific powder increases, it is possible to provide a better cosmetic effect, in particular a more long-lasting cosmetic effect, such as a more long-lasting matte effect. In addition, it is possible to quickly evaporate water immediately after applying the cosmetic composition according to the present invention to the skin, particularly the face, so that the time required for a makeup method using the cosmetic composition according to the present invention can be shortened. However, considering the touch provided by the-selected specific powder, the amount of the-selected specific powder is 1.0% to 25% by weight, more preferably 2% by weight, based on the total weight of the cosmetic composition according to the present invention. It is preferably in the range of 20% by weight, even more preferably 5% by weight to 15% by weight.

The fine powder phase in the cosmetic composition according to the present invention may contain one or more additional fillers and/or one or more pigments in addition to the specific powder selected above.

The term “filler” is understood to mean colorless or white, inorganic or synthetic particles that are insoluble in possible liquid constituents in the cosmetic composition according to the invention, regardless of the temperature at which the composition is prepared.

The additional filler(s) may be inorganic or organic, and may be of a spherical or oblong shape regardless of the crystallographic shape (eg, sheet, cube, hexagonal, orthorhombic, etc.). Without limitation, talc, kaolin, mica, solid silica, sericite, calcined talc, calcined mica, calcined sericite, synthetic mica, bismuth oxychloride, barium sulfate, boron nitride, calcium carbonate, magnesium hydrogen carbonate and hydroxyapatite, polyamide (Nylon ^® ), powder formed of poly-β-alanine and polyethylene, powder formed of polyurethane, powder formed of tetrafluoroethylene polymer (Teflon ^® ), lauryl lysine, starch, polymer-based hollow microspheres, such as poly( Vinylidene chloride)/acrylonitrile, for example Expancel ^® (Nobel Industrie), or of acrylic acid copolymers, silicone resin microbeads (e.g. Tospearls ^{® from} Toshiba), particles formed of polyorganosiloxane elastomers, or Metal soaps derived from organic carboxylic acids having 8 to 22 carbon atoms, for example 12 to 18 carbon atoms, for example zinc stearate, magnesium stearate, lithium stearate, zinc laurate or myristic Mention may be made of magnesium acid.

As the polyamide powder, mention can be made of a product sold by UBE Industries under the trade name Pomp610 (oil absorption is 2.02 ml/g).

As polymeric hollow microspheres, the following may be mentioned:

-Porous polymethyl methacrylate/ethylene glycol dimethacrylate spheres sold by Cardinal Health Technologies under the trade name Microsponge 5640 (oil absorption is 1.55 ml/g); And

- ethylene glycol dimethacrylate / lauryl methacrylate copolymer, referred to the powder, especially that sold under the trade name Polytrap ^® 6603 by the Dow Corning Corporation (oil absorption is 6.56ml / g Im).

It is preferred that the additional filler is an inorganic filler. Accordingly, additional fillers are from the group consisting of talc, kaolin, mica, solid silica, sericite, calcined talc, calcined mica, calcined sericite, synthetic mica, bismuth oxychloride, barium sulfate, boron nitride, calcium carbonate, magnesium carbonate and hydroxyapatite. Can be chosen. It is preferred to use mica and/or calcium carbonate as additional filler(s). It is preferred that the finely divided phase contains perlite and the additional filler is calcium carbonate.

Further fillers suitable for the present invention may be, for example, fillers with an average particle size of less than 100 μm, in particular 1 to 50 μm, for example 4 to 20 μm. The average (median) particle size can be determined by laser diffraction, and this particle size is based on the volume diameter.

The additional filler may be present in the fine powder phase in an amount ranging from 1% to 30% by weight based on the total weight of the cosmetic composition according to the present invention. In one embodiment, the additional filler may be present in an amount ranging from 3% to 20% by weight relative to the total weight of the composition. In a further embodiment of the present invention, the additional filler may be present in an amount ranging from 5% to 10% by weight relative to the total weight of the composition.

The term "pigment" is understood to mean inorganic or organic particles of any shape, which are white or colored, insoluble in a physiological medium and intended to color the composition.

Among the inorganic pigments that can be used according to the invention, optionally surface-treated titanium dioxide, zirconium oxide or cerium oxide, as well as zinc oxide, (white, yellow or red) iron oxide or chromium oxide, manganese violet, ultramarine blue, chromium Hydrate and ferric blue, or metal powders such as aluminum powder or copper powder can be mentioned without limitation. In a preferred embodiment, the composition contains titanium oxide, iron oxide or mixtures thereof.

Of the organic pigments that can be used according to the invention, mention may be made further, without limitation, of carbon black, pigments of the D&C type, cochinyl carmine and lakes based on barium, strontium, calcium or aluminum.

It is also possible to use one or more goniochromatic pigments. The pigment shows a relatively large color change depending on the viewing angle.

The goniochromatic pigment can be selected from liquid crystal pigments and pigments of a multilayer interference structure, for example.

In the case of a multi-layered structure, the structure may include, for example, two or more layers, each layer independently of the other layer(s), etc., and is made from one or more materials selected from, for example, the following materials : MgF ₂ , CeF ₃ , ZnS, ZnSe, Si, SiO ₂ , Ge, Te, Fe ₂ O ₃ , Pt, Va, Al ₂ O ₃ , MgO, Y ₂ O ₃ , S ₂ O ₃ , SiO, HfO ₂ , ZrO ₂ , CeO ₂ , Nb ₂ O ₅ , Ta ₂ O ₅ , TiO ₂ , Ag, Al, Au, Cu, Rb, Ti, Ta, W, Zn, MoS ₂ , cryolite, alloys and polymers.

The multilayer structure that can be used for the goniochromatic pigment is, for example, the following structure: Al/SiO ₂ /Al/SiO ₂ /Al; Cr/MgF ₂ /Al/MgF ₂ /Al; MoS ₂ /SiO ₂ /Al/SiO ₂ /MoS ₂ ; Fe ₂ O ₃ /SiO ₂ /Al/SiO ₂ /Fe ₂ O ₃ ; Fe ₂ O ₃ /SiO ₂ /Fe ₂ O ₃ /SiO ₂ /Fe ₂ O _{3 ;} MoS ₂ /SiO ₂ /Mica-oxide/SiO ₂ /MoS ₂ ; And Fe ₂ O ₃ /SiO ₂ /mica-oxide/SiO ₂ /Fe ₂ O ₃ . Different colors can be obtained depending on the thickness of the various layers. Thus, with the structure Fe ₂ O ₃ /SiO ₂ /Al/SiO ₂ /Fe ₂ O ₃ , from green-gold to red-grey for the SiO ₂ layer in the range of 320 to 350 nm; Red to gold for SiO ₂ layers ranging from 380 to 400 nm; Purple to green for the SiO ₂ layer ranging from 410 to 420 nm; The color changes from copper to red for the SiO ₂ layer in the range of 430 to 440 nm.

Consequently, the multilayer structure can be mineral or organic. Different colors are obtained depending on the thickness of each of the various layers.

The multilayer interference structure goniochromatic pigments disclosed herein are, for example, those described in the following documents: USP-3438796, EP-A-227423, USP-5135812, EP-A-170439, EP-A- 341002, USP-4930866, USP-5641719, EP-A-472371, EP-A-395410, EP-A-753545, EP-A-768343, EP-A-571836, EP-A-708154, EP-A- 579091, USP-5411586, USP-5364467, WO 97/39066, DE-A-4225031, WO 95/17479, DE-A-19614637, and combinations thereof. They can be present in the form of metallic flakes.

In one embodiment, the multilayer interference structure of the goniochromatic pigment may be selected from the following commercially available goniochromatic pigments: Infinite Colors from Shiseido, Sicopearl Fantastico from BASF, Colorstream from Merck, Xirallic or Xirona, and Flex's Colorglitter.

As a multilayered goniochromatic pigment, mention may be made of what is sold under the trade name "Sicopearl".

It is also possible to use one or more liquid crystal pigments, for example described in patent application EP-A-1046 692.

Liquid crystal particles that can be used include, for example, the trade names "Helicone ^® HC Sapphire", "Helicone ^® HC Scarabeus", "Helicone ^® HC Jade", "Helicone ^® HC Maple", "Helicone ^® HC XL Sapphire" by Wacker. , "Helicone ^® HC XL Scarabeus", "Helicone ^® HC XL Jade" and "Helicone ^® HC XL Maple" sold under the CTFA name Polyacrylate-4.

It is also possible to use more than one nacre pigment. The term "pearl layer pigment" will be understood to mean iridescent particles of any shape produced, for example, or alternatively synthesized in the shells of certain mollusks.

The nacre pigment(s) is a white nacre pigment, for example titanium or mica coated with bismuth oxychloride, a colored nacre pigment, for example titanium mica coated with iron oxide, for example ferric blue or titanium coated with chromium oxide. It may be selected from mica, titanium mica coated with organic pigments of the aforementioned type, and also nacres based on bismuth oxychloride.

The pigment may be present in the fine powder phase in an amount ranging from 1% to 30% by weight based on the total weight of the composition in the cosmetic composition according to the present invention. In one embodiment, the pigment may be present in an amount ranging from 3% to 20% by weight relative to the total weight of the composition. In a further embodiment, the pigment may be present in an amount ranging from 5% to 10% by weight relative to the total weight of the composition.

It is preferred that at least one additional filler and/or at least one pigment in the cosmetic composition according to the present invention is surface treated, preferably with a hydrophilic or hydrophobic substance.

The amount of the fine powder in the cosmetic composition according to the present invention is more than 1% by weight relative to the total weight of the composition, and 3 to 40% by weight, preferably 5 to 35% by weight, more preferably 10 to 30% by weight, based on the total weight of the composition Can be

The aqueous phase in the cosmetic composition according to the present invention may contain one or more hydrophilic organic solvents.

The hydrophilic organic solvent is preferably water miscible. As the hydrophilic organic solvent, for example, C ₁ -C ₄ alkanols such as ethanol and isopropanol; Polyols and polyethers such as glycerol, 2-butoxyethanol, propylene glycol, monomethyl ether of propylene glycol, monoethyl ether and monomethyl ether of diethylene glycol; And aromatic alcohols such as benzyl alcohol and phenoxyethanol; Similar products; And mixtures thereof.

The organic solvent may be present in an amount in the range of 1 to 40% by weight, preferably 5 to 30% by weight, and more preferably 10 to 20% by weight, based on the total weight of the cosmetic composition according to the present invention.

The amount of water in the aqueous phase in the cosmetic composition according to the present invention may be 30 to 65% by weight, preferably 35 to 60% by weight, more preferably 40 to 55% by weight, based on the total weight of the composition.

The pH of the water in the aqueous phase in the cosmetic composition according to the present invention is not limited, but may preferably be present in the range of 4.0 to 8.0, more preferably 5.0 to 7.5, and even more preferably 6.0 to 7.0.

The amount of the aqueous phase in the cosmetic composition according to the present invention may be 30 to 97% by weight, preferably 35 to 80% by weight, more preferably 40 to 75% by weight, based on the total weight of the composition.

The cosmetic composition according to the present invention is 2,500 mPa·s or less, preferably 1,000 mPa·s or less, more preferably 800 mPa·s or less, even more preferably 600 mPa·s or less, even more preferably 400 mPa·s or less, even more Preferably, it has a viscosity of 200 mPa·s or less.

The cosmetic composition according to the present invention is 0.8 mPa·s or more, preferably 1.0 mPa·s or more, more preferably 1.5 mPa·s or more, even more preferably 2.0 mPa·s or more, even more preferably 3.0 mPa·s. It has a viscosity of 5.0 mPa·s or more even more preferably.

Viscosity, for example, 1 to 10 minutes after mixing the cosmetic composition according to the present invention to form a uniform aqueous powder dispersion, for example, a conventional viscometer equipped with a No.2 spindle, such as Rheomat It can be measured at 25°C using an RM180 viscometer (manufactured by ProReo).

The low viscosity of the cosmetic composition according to the present invention means that the cosmetic composition according to the present invention contains no oil, surfactant or gelling agent or contains only a small amount.

In one embodiment according to the present invention, the cosmetic composition according to the present invention contains one or more oils in an amount of less than 1% by weight, preferably less than 0.1% by weight, more preferably less than 0.01% by weight relative to the total weight of the composition. can do. Most preferably, the cosmetic composition according to the present invention is free of any oil.

The term “oil” as used herein refers to a fatty substance in the form of a liquid at 25° C. under normal atmospheric pressure.

If present, the oil may be selected from the group consisting of oils of animal or plant origin, mineral oils, synthetic oils, for example esters other than animal or vegetable oils, artificial triglycerides, silicone oils and hydrocarbons, especially aliphatic hydrocarbons. These oils can be volatile or non-volatile. Two or more oils may be used in combination. Thus, a single type of oil or a combination of different types of oils can be used.

In another embodiment according to the present invention, the cosmetic composition according to the present invention contains at least one surfactant or at least one gelling agent in an amount of less than 1% by weight, preferably less than 0.1% by weight, more preferably 0.01% by weight, based on the total weight of the composition. It may contain in an amount less than %. Most preferably, the cosmetic composition according to the present invention is free of any surfactants or gelling agents.

If present, the surfactant used in the present invention can be selected from the group consisting of anionic surfactants, amphoteric surfactants, cationic surfactants and nonionic surfactants. Two or more surfactants may be used in combination. Thus, a single type of surfactant or a combination of different types of surfactants can be used. Preferably, according to the invention, the "surfactant" is capable of forming bubbles with water without additives.

The presence of the gelling agent in the cosmetic composition according to the present invention results in an increase in the viscosity of the composition, and tends to provide a less refreshing feel due to the fluidity of the aqueous phase containing water. Therefore, it is preferred that the cosmetic composition according to the present invention contains no gelling agent or contains only a small amount.

However, if present, the gelling agent used in the present invention can be selected from hydrophilic gelling agents. Two or more hydrophilic gelling agents may be used in combination. Thus, a single type of hydrophilic gelling agent or a combination of different types of hydrophilic gelling agents can be used. The hydrophilic gelling agent can thicken the aqueous phase of the cosmetic composition according to the present invention.

The hydrophilic gelling agent can be selected, for example, from:

(i) carboxyvinyl polymer;

(ii) polymers and copolymers of polyacrylamide and optionally crosslinked and/or neutralized 2-acrylamido-2-methylpropanesulfonic acid;

(iii) polysaccharides such as xanthan gum, guar gum, alginate or cellulose polymer; And

(iv) inorganic compounds.

The cosmetic composition according to the present invention may contain any other conventional cosmetic ingredients that may be selected from, for example, antioxidants, fragrances, preservatives, neutralizing agents, sunscreens, vitamins, moisturizers, self-tanning compounds and anti-wrinkle active ingredients. I can.

Of course, those skilled in the art will select any of these additional ingredient(s) and/or their amount(s) so that the beneficial advantages of the cosmetic composition according to the invention are not adversely or substantially adversely affected by the additive under consideration. will be.

The cosmetic composition according to the present invention may be prepared, for example, by mixing finely powdered components (the selected specific powder, additional fillers, additional pigments, etc.), and then adding the aqueous component(s) while stirring, If necessary, the mixture is subsequently poured into the container.

[How to make up]

Another aspect of the present invention is a cosmetic method for reducing skin makeup, in particular matting or glossiness (eg, glare), comprising the step of applying a cosmetic composition according to the present invention.

The method of applying the cosmetic composition according to the present invention to the user's skin, particularly the face is not limited. The cosmetic composition according to the present invention is preferably applied using an appropriate applicator as described above.

The cosmetic composition according to the present invention applied to the skin may be applied in the drying step.

The method of drying the cosmetic composition according to the invention applied to the user's skin, in particular the face, is also not limited. It is possible to use a dryer or fan that provides warm or cool air. Of course, it is possible to leave the cosmetic composition according to the present invention on the skin after application, which may be sufficient to dry the aqueous phase of the cosmetic composition according to the present invention depending on the amount of the cosmetic composition according to the present invention applied to the skin. Because.

The make-up method according to the present invention can be used to make-up the skin, particularly the face, by applying the cosmetic composition according to the present invention to the skin as described above. According to the make-up method according to the present invention, it is possible to provide a user with both a fresh feeling and a long-lasting cosmetic effect, for example a long-lasting make-up effect. Thus, the matte appearance of the skin, particularly the good appearance of the skin with reduced glossiness, can be maintained for a long time.

Example

The present invention will be described in more detail through examples. However, they should not be construed as limiting the scope of the invention.

Example 1-3

[Produce]

The following cosmetic compositions according to Examples 1 to 3 shown in Table 1 were prepared by mixing the components shown in Table 1. The numerical values for the amounts of ingredients given in the table are all based on "% by weight" as active ingredient.

[evaluation]

(Viscosity)

The viscosity of each of the compositions according to Examples 1 to 3 was measured at 25°C using a Rheomat RM180 viscometer (manufactured by ProReo) equipped with a No.2 spindle according to the viscosity. Measurements were performed in the composition at a shear rate of 200 rpm after 10 minutes rotation of the spindle. The measured viscosity values of the compositions according to Examples 1 to 3 are presented in Table 1.

(Sensory evaluation)

A panel of five experts evaluated the compositions prepared in Examples 1 to 3 by scoring a fresh feeling when used according to the following criteria.

1: very oily

2: foreclosure

3: Between oiliness and freshness

4: refreshing

5: very refreshing

The average scores of the panels for each of Examples 1 to 3 are presented in Table 1.

(Matt effect)

Each composition according to Examples 1 to 3 was applied to the faces of the panels. Immediately after application of each composition to the face, the total gloss (reflected light) on the face was measured with a polarizing camera.

After 30 minutes of application, the total gloss on the face was measured again in the same manner as above to determine the gloss on the face.

Full gloss (T ₀₎ immediately after application and 30 minutes after application the difference between the full gloss (T ₃₀₎ were determined by the mat value (T ₃₀ -T _0). The above process was carried out for each of 12 professional panels, and the average of the mat values was calculated. The results are presented in Table 1.

A smaller matte value indicates that the cosmetic composition has a longer lasting matte effect. A matte value of less than 9.5, more preferably less than 9.0, even more preferably less than 8.0 is preferred.

[result]

Surprisingly, it was found that Examples 1 to 3 provided not only an excellent long-lasting matte effect, but also a refreshing feel when used.

Comparative example

As described for the above Examples 1 to 3, so-called water, butylene glycol, glycerin, titanium oxide, kaolin, iron oxide, chamomile extract, and sold under the brand name Hahagiku Mizu-oshiroi (supplied by Ishizawa Laboratories) containing methylparaben. The resulting product and the matte effect of Example 3 (containing 15% pearlite) were compared under extreme conditions (37° C. and humidity 60%). The results are presented below.

From these results, it was concluded that the composition of the present invention containing pearlite showed better performance in terms of matte effect even under extreme conditions (temperature and/or humidity) than Hahagiku Mizu-oshiroi containing kaolin in fine powder.

Example 4 to 7

[Produce]

The following compositions according to Examples 4 to 7 shown in Table 2 were prepared by mixing the components shown in Table 2. The numerical values for the amounts of ingredients presented in the table are all based on "% by weight" as active ingredient.

[evaluation]

Each composition (Examples 4 to 7) was applied to the faces (cheeks) of the panels, and the matte effect was examined by two panels. The compositions were found to have an effect equivalent to that of the composition according to Example 1.

Example 5 shows that the combination of perlite and silica silylate provides a much better performance in terms of matte effect. Examples 6 and 7 show excellent results when using amorphous hollow silica and magnesium carbonate, respectively.

Claims (11)

Cosmetic composition containing:
(a) fine powder; And
(b) an aqueous phase,
here,
The viscosity of the composition is 2,500 mPa s or less,
The powder contained in the fine powder has a median particle size of less than 30 μm,
The fine powder phase contains perlite in an amount greater than 1% by weight relative to the total weight of the composition,
When not in use, the fine powder phase and the aqueous phase form two distinct phases, and the fine powder phase precipitates under the aqueous phase. delete The method of claim 1,
The cosmetic composition having a particle size distribution such that the powder has a median particle size of less than 25 μm. The method of claim 1,
The cosmetic composition of the powder having a particle size distribution such that 90% of the powder particles are less than 55㎛. The method of claim 1,
Cosmetic composition in which the amount of the powder is 2% by weight or more based on the total weight of the composition. The method of claim 1,
A cosmetic composition in which the fine powder phase contains at least one additional filler and/or pigment. The method of claim 6,
Cosmetic composition selected from the group consisting of talc, kaolin, mica, solid silica, sericite, calcined talc, calcined mica, calcined sericite, synthetic mica, bismuth oxychloride, barium sulfate, boron nitride, calcium carbonate and hydroxyapatite . The method of claim 6,
Cosmetic composition selected from the group consisting of titanium dioxide, zirconium oxide, cerium oxide, zinc oxide, iron oxide (black, yellow or red), chromium oxide, manganese violet, ultramarine blue, chromium hydrate, ferric blue and metal powder . The method of claim 1,
Cosmetic composition in which the amount of the fine powder is 3 to 40% by weight based on the total weight of the composition. The method of claim 1,
Cosmetic composition in which the amount of the aqueous phase is 30 to 97% by weight based on the total weight of the composition. A cosmetic method for skin makeup comprising the step of applying the cosmetic composition of any one of claims 1 and 3 to 10 to the skin.