WO2018004193A1 - Cosmetics comprising impregnation material impregnated with oil-in-water-in-oil type cosmetic composition - Google Patents

Abstract

The present invention relates to cosmetics comprising an impregnation material impregnated with an oil-in-water-in-oil type cosmetic composition. The cosmetic composition according to the present invention is manufactured so that the cosmetic composition can be used after being impregnated into the impregnation material and smeared on an applicator, so as to be easily portable and applied. In addition, the cosmetic composition of the present invention is manufactured in the form of a water-in-oil-in-oil type formulation, and thus is excellent in compatibility with the impregnation materials and the applicator. Also, the cosmetic composition allows an oil-insoluble ingredient to be stably dispersed in the composition, and exhibits a moisturizing and refresh feeling from use.

Description

Cosmetics containing impregnating material impregnated with oil-in-water type cosmetic composition

This application claims the benefit of priority based on Korean Patent Application No. 10-2016-0082306 filed on June 30, 2016, and includes all contents described in the literature of that Korean patent application as part of this specification.

The present invention relates to a cosmetic comprising an impregnating material impregnated with an oil-in-water cosmetic composition.

There is an increasing demand for cosmetics that can be easily carried when going out. In the case of a liquid cosmetic composition, it was difficult to carry and apply most of them by using a container packaging method, but recently, the cosmetic composition is impregnated into an impregnating material such as a polyurethane foam and applied to the skin using an applicator such as a puff. Pact type cosmetics have been developed and made popular.

In order to implement the liquid cosmetic composition as a fact type as described above, compatibility of the impregnating material and the applicator and the cosmetic composition is important. Cosmetic compositions are classified into water in oil (W / O) and oil in water (O / W) types according to the types of continuous and disperse phases. Although it impregnates the impregnating material and the applicator, the cosmetics are easily evaporated and have the disadvantage of being susceptible to bacterial propagation. Therefore, water-in-oil formulations which are excellent in terms of compatibility with the impregnating agent and the applicator are mainly used when manufacturing the fact type cosmetics with the liquid cosmetic composition.

However, in the case of water-in-oil formulations, there is a drawback in showing a somewhat heavy feeling compared to oil-in-water formulations, and has a problem in that it is difficult to manufacture by using a raw material that is insoluble in the oil phase.

Therefore, there is a need for development of cosmetics having good compatibility with the impregnating material and the applicator, dispersing an insoluble raw material well, and applying a cosmetic composition having excellent usability.

[Preceding technical literature]

(Patent Document 1) Korean Patent Publication No. 2016-0017594, Cosmetics including a porous foam and the cosmetic composition impregnated therein

The present inventors have produced a fact type cosmetics using a water-in-oil type cosmetic composition in order to solve the above problems, the oil-in-water type cosmetic composition is excellent in compatibility with the impregnating material and the applicator, the existing water-in-oil cosmetics The present invention was completed by confirming the improved usability and raw material dispersibility compared to the composition.

Accordingly, it is an object of the present invention to provide cosmetics that exhibit improved usability and excellent compatibility with the impregnating material and applicator.

In order to achieve the above object, the present invention provides a cosmetic comprising the cosmetic composition impregnated in the impregnating material buried in the applicator, the cosmetic composition is a water-in-oil-in-oil cosmetic composition.

Cosmetics according to the present invention is impregnated with a cosmetic composition in the impregnating material, it is manufactured to be used by buried in the applicator is easy to carry and apply. In addition, the cosmetic composition in the present invention is prepared in oil-in-water oil-in-water formulations, excellent compatibility with the impregnating material and the applicator, it is possible to stably disperse components in the oil phase poorly soluble in the composition, the moisture and fresh feeling.

1 is an optical micrograph of an oil-in-water cosmetic composition prepared in Example 1.

Figure 2 is a photograph comparing the formulation transparency (white turbidity) of the cosmetic composition prepared in Example 1 and Comparative Example 1.

The present invention provides a cosmetic comprising a cosmetic composition impregnated inside the impregnating material buried in the applicator, wherein the cosmetic composition is a water-in-oil-type cosmetic composition. Hereinafter, the present invention will be described in detail.

The oil-in-water cosmetic composition referred to in the present invention means a cosmetic composition composed of an aqueous phase dispersed in an external oil phase which is a continuous phase and an internal oil phase dispersed in the aqueous phase.

In the case of cosmetics used by impregnating a cosmetic composition into an impregnating material, when an oil-in-water formulation with a continuous phase is used, an impregnating material composed of polyurethane or the like or an applicator composed of acrylonitrile butadiene rubber (NBR) is expanded by water. Water-based formulations are mainly used because the cosmetics evaporate well and are vulnerable to bacterial growth. However, the water-in-oil type cosmetic composition has a problem that the fresh feeling of use is lower than that in the oil-in-water type, and when raw materials having poor solubility are used, it is difficult to disperse the raw materials in the composition and thus raw materials are precipitated.

The present invention solves the above problems by applying a water-in-oil type formulation for improving the feeling of use and dispersion of raw materials that are poorly soluble in oil phase.

The oil-in-water type cosmetic composition may be a cosmetic composition for blocking UV rays.

Sunscreens are largely classified into organic sunscreens and inorganic sunscreens, and are classified into UVA blockers and UVB blockers according to the types of ultraviolet rays to be blocked. Inorganic sunscreens do not penetrate the skin and remain on the surface of the skin to reflect ultraviolet light. Organic sunscreens block UV rays by trapping solar energy in molecules, and they penetrate the skin. If the content of the inorganic sunscreen is high, there is a disadvantage in that natural makeup is impossible due to the soft feeling of use and the cloudiness that makes the skin look white. On the other hand, the organic sunscreen has no white turbidity and good applicability, but if the content is high, there is a problem that the skin safety is lowered, so that two types of sunscreens are properly mixed and used.

On the other hand, the sunscreen cosmetic composition is generally prepared in a water-in-oil formulation having a water resistance so that it is not easily removed by water or sweat. However, in the case of organic UVA blocker, there is a problem in that the solubility in the oil phase is not good, so it is easy to precipitate as crystals. Therefore, in order to implement a high UV protection of SPF 50 or more, PFA 8 or more in water-in-oil type, more than a certain level of inorganic sunscreen should be included.

Cosmetic according to the present invention solved the above problems by adopting a water-in-oil formulation. That is, in one embodiment of the present invention by stabilizing the organic UVA blocker insoluble in the oil phase to the internal oil phase in the discontinuous phase by reducing the content of the inorganic sunscreen agent in the cosmetic composition, for maintaining the UV blocking power while reducing the whitening To provide a composition.

Oil-in-water type oil-in-water cosmetic composition according to the invention may include an organic UVA blocker and an amphiphilic polymer.

The organic UVA blocker is not particularly limited in the present invention, for example, bisethylhexyloxyphenol methoxyphenyl triazine, butyl methoxydibenzoylmethane, and diethylamino hydroxy It may be at least one selected from the group consisting of benzoyl hexyl benzoate (Diethylamino hydroxybenzoyl hexyl benzoate). Such organic UVA blockers do not exhibit turbidity and can be used as an alternative to inorganic UVA blockers.

In the present invention, the organic UVA blocker is preferably included in 0.1 to 10.0% by weight relative to the total weight of the total cosmetic composition, it is included in the oil-in-water type internal oil phase. If the content of the organic UVA blocker is less than the above range, it is difficult to obtain a sufficient sunscreen effect, and if it exceeds the above range, it is difficult to produce a stable oil-in-water type cosmetic composition, so it is appropriately adjusted within the above range.

The amphiphilic polymer refers to a polymer having both a hydrophilic portion and a lipophilic portion. In oil-in-water cosmetic compositions, these amphiphilic polymers are located at the interface between the lipophilic components of the inner oil phase containing the sunscreen and the water phase at high temperatures, and become solid at temperatures below the melting point, causing the internal oil phase to aggregate and United to prevent precipitation of organic UVA blockers.

In addition, the amphiphilic polymer preferably has a molecular weight of 1000 to 15000 g / mol. As such, since the molecular weight is large, a thick interfacial film is formed to prevent aggregation and coalescing of the inner oil phase, and the organic UVA blocker can be stably dissolved in the inner oil phase.

Such an amphiphilic polymer may be used as long as it can secure the above-described effects, and may be, for example, methoxypage-114 polyepsiloncaprolactone.

Amphiphilic polymer in the present invention is preferably included in 0.1 to 10.0% by weight based on the total weight of the total cosmetic composition, more preferably in 0.2 to 5.0% by weight. If the content of the amphiphilic polymer is less than the above range, the interfacial membrane is not thick enough, there is a risk that the internal oil phase is coalesced to precipitate the organic UVA blocker, and if it exceeds the above range, it is difficult to produce a stable oil-in-water cosmetic composition, Adjust appropriately within the range.

Oil-in-water type cosmetic composition according to a preferred embodiment of the present invention,

(i) an internal oil phase comprising an amphiphilic polymer and an organic UVA blocker,

(ii) an aqueous phase comprising water, and

(iii) an external oil phase comprising an oil.

At this time, the inner oil phase, the water phase, and the outer oil phase are included in the total 100% by weight of 6 to 13% by weight, 30 to 45% by weight, 45 to 64% by weight, respectively.

The composition according to the invention may further comprise an additive known in the art to any one of (i) to (iii). Such additives may vary depending on the field of application of the composition according to the invention.

Non-limiting examples of additives that can be used include moisturizers, fatty acids, preservatives, pH adjusters, antioxidants, sunscreens, pigments, dyes, flavorings, stabilizers, thickeners and the like, and may be appropriately selected by those skilled in the art. .

Moisturizers include erythritol, xylitol, maltitol, propylene glycol, sorbitol, polyglycerol, polyethylene glycol, 1,2-pentanediol, isopropylene glycol, amino acids, sodium lactate, sodium pyrrolidone carboxylate, xyloglucan, quince Seeds, carrageenan, pectin, met, curdlan, galactan, dermatan sulfate, glycogen, keratan sulfate, chondroitin, mucoitin sulfate, keratosulfate, locust bean gum, succinoglycan, calonym acid 1 type selected from the group consisting of hyaluronic acid, heparin sulfate, sodium hyaluronate, collagen, mucopolysaccharide, chondroitin sulfate, dimethyl polysiloxane, methylphenylsiloxane, culture supernatant of lactic acid bacteria or bifidus bacteria, and combinations thereof.

As a fatty acid, 1 type of fatty acids chosen from the group which consists of lauric acid, myristic acid, palmitic acid, stearic acid, oleic acid, linolenic acid, and mixtures thereof are mentioned.

The thickener is intended to enhance the feeling of use by providing a suitable viscosity when used as a cosmetic composition, sodium alginate, xanthan rubber, aluminum silicate, quince seed extract, gum arabic, hydroxyethyl guar rubber, carboxymethyl guar rubber, guar rubber , Dextran, tragacanth rubber, cellulose, hydroxypropyl cellulose, methyl hydroxypropyl cellulose, methyl cellulose, carboxymethyl cellulose, hydroxyethyl cellulose, carboxyvinyl polymer, polyvinyl alcohol, polyvinylpyrrolidone, and these 1 type selected from the group which consists of a combination of these can be used.

The lipid is at least one selected from the group consisting of mango butter, shea butter, cocoa seed butter, macadamia nut oil, batyl alcohol, behenyl alcohol, cetostearyl alcohol, cetyl alcohol, stearyl alcohol and combinations thereof Can be used.

Preservatives include benzoate, salicylate, sorbate, dihydroacetate, paraoxybenzoic acid ester, 2,4,4-trichloro-2-hydroxydiphenyl ether, 3,3,4-trichlorocar Vanillide, benzalkonium chloride, hinokithiol, resorcin and the like can be used.

Examples of the pH regulator include sodium hydroxide, triethanolamine, citric acid, sodium citrate, boric acid, borax, potassium hydrogen phosphate, and the like.

As the antioxidant, dibutyl hydroxytoluene, butyl hydroxyanisole, propyl gallate, ascorbic acid and the like can be used.

As a sunscreen, p-aminobenzoic-acid ultraviolet absorber, anthranilic acid-type ultraviolet absorber, salicylic acid-type ultraviolet absorber, cinnamic acid-type ultraviolet absorber, benzophenone type ultraviolet absorber, sugar-type ultraviolet absorber, phenylbenzimidazole sulfonic acid, 3- ( 4-methylbenzylidene) -d-campo, 3-benzylidene-d, l-campo, urocanic acid, urocanic acid ethyl ester, 2-phenyl-5-methylbenzoxazole, 2,2-hydroxy -5-methylphenylbenzotriazole, 2- (2-hydroxy-5-t-octylphenyl) benzotriazole, 2- (2-hydroxy-5-methylphenyl) benzotriazole, dibenzalazine, dianisoylmethane , 4-methoxy-4-t-butylbenzoylmethane, 5- (3,3-dimethyl-2-norbornylidene) -3-pentan-2-one, 2-hydroxy-4-methoxybenzophenone , Octyldimethyl p-aminobenzoate, ethylhexyl p-methoxycinnamate, titanium oxide fine particles, zinc oxide fine particles and the like can be used.

As pigments, silica, mica, talc, sericite, barium sulfate, titanium dioxide, chromium oxide, iron oxide, zinc oxide, cerium dioxide, zirconium dioxide, carbon black, barium, strontium, nylon powder, polymethyl methacrylate (PMMA ) Can be used.

As the preservative, parabens such as methyl paraben and propyl paraben, phenoxyethanol, octane diol, hexanediol and the like can be used.

It is preferable to mix | blend the said water-soluble component with an aqueous phase, and an oil-soluble component with an oil phase.

The method for preparing an oil-in-water cosmetic composition according to a preferred embodiment of the present invention is not particularly limited, and any emulsification method used in the art may be used.

More specifically, the oil-in-water type sunscreen cosmetic composition of the present invention can be prepared by the following method.

S1) after mixing the amphiphilic polymer and the organic UVA blocker, and other additives to heat to 70 ~ 80 ℃ to prepare an internal oil phase,

S2) after mixing water and other additives to prepare a water phase by heating at 65 ~ 75 ℃,

S3) the oil-in-water emulsion is prepared by first adding an internal oil phase portion to the water phase portion maintaining 65 to 75 ° C. under stirring to form an oil-in-water emulsion,

S4) mixing oil and other additives at room temperature to produce an external oil phase,

S5) The oil-in-water emulsion of S3) is added to the external oil phase of S4) under stirring to prepare an oil-in-water cosmetic through secondary emulsification.

In this case, the mixing performed in S1), S2) and S4) is not particularly limited in the present invention, and a conventional mixer, homogenizer, homogenizer, or high pressure homogenizer used in the cosmetic manufacturing field is used.

In addition, the stirring speed at the time of mixing can be changed in various ways depending on the device and composition content used.

On the other hand, cosmetics according to the present invention includes an impregnating material impregnated with an oil-in-water cosmetic composition as described above.

The water-in-oil-in-water cosmetic composition may be 2,000 to 25,000 cps, it is more preferably applied 5000 to 22,000cps, most preferably 10,000 to 20,000 cps when applied as a cosmetic to be used in the applicator after impregnated in the impregnating material. have.

If the concentration is manufactured at a low concentration of less than the above range, the cosmetic composition is not evenly impregnated throughout the impregnating material but sinks to the bottom, which may be inconvenient to use or leak out of the cosmetic when stored. On the contrary, in the case of manufacturing at a high concentration to exceed the above range, it is difficult to impregnate the inside of the impregnating material, and can be given a sticky and heavy feeling in use.

The viscosity can be measured by a viscosity measuring instrument, for example Spindle Number No. It can be measured with a BROOKFIELD viscosity measuring instrument (BROOKFIELD RVDV-III ULTRA (Serial No. RY6521152)) set at 63 and spindle speed (RPM) 12 rpm.

The impregnating material referred to in the present specification means that the cosmetic composition can be supported, and may also be expressed as "carrier", "carrier" or "mediator". In addition, the "carrier" may be used to discharge the material carried therein in a separate applicator.

The cosmetic composition supported in the impregnating material is a water-in-oil-in-oil cosmetic composition as described above, preferably a cosmetic composition for blocking UV rays. The oil-in-water cosmetic composition may be delivered to the skin, for example, by hand or through an applicator (also called a coating means, an application sponge, or an applicator) such as puffs, tips, and brushes.

The impregnating material proposed in the present invention is not particularly limited, but may be a foam (or sponge) for supporting a cosmetic composition. The foamed foam can be used as long as it can be used as a foamed material, but the physical properties such as absorbency, supporting ability, durability, discharge capacity required as the impregnating material varies depending on the material, cell structure, hardness, etc. You need to make the right choice.

The absorbency required as the impregnating material means that the cosmetic composition is absorbed and evenly supported inside the impregnating material. In this case, the high absorbency means that the compatibility between the impregnating material and the cosmetic composition is good. Evaporation of the cosmetic composition can be suppressed.

In addition, the supporting ability (or filling ability) required as the impregnating material means the ability to hold and retain the cosmetic composition, wherein the excellent supporting ability means that the cosmetic composition is uniformly supported for a long time at a high concentration. The supporting ability of such an impregnating material is a concept that is distinguished from being taken by temporarily applying a cosmetic composition to the applicator.

And, the durability required as the impregnating material means that if the impregnating material on which the cosmetic composition is loaded is left at a predetermined temperature for a predetermined time, the impregnating material (foaming foam) does not damage or deform, such as melting, tearing, or swelling, and the original state is not generated. It means to be sustainable. In addition, the durability means the degree to withstand the pressure applied when the applicator is repeatedly contacted to use the cosmetic composition, the high impregnation of the impregnated material even if repeatedly used by the applicator damage or deformation It means you can stay intact without happening.

In addition, the discharge capacity required as the impregnating material means the amount of the cosmetic composition is buried after contact with the applicator when using the cosmetic composition, when the discharge capacity is too high or low, because the cosmetic composition is excessively buried or a small amount of uncomfortable use In accordance with the pressure applied to the impregnating material, it is preferable to have a proper discharge capacity so that the appropriate amount of the cosmetic composition can be discharged.

As mentioned above, the absorbency, the supporting ability, the durability, the discharging ability, etc. required as the impregnating material vary depending on the material, the cell structure, and the hardness of the foam foam used as the impregnating material. In particular, the water-in-oil-in-oil-type cosmetic composition proposed in the present invention is composed of an oil phase / water phase / oil phase, and should be excellent in compatibility with the outermost oil phase.

As a material of the foam, various materials such as polyethylene, polypropylene, natural rubber, polystyrene, and polyurethane may be used, but in the present invention, a polyurethane foam is made of polyurethane for use of the cosmetic composition.

Polyurethane is produced by the reaction of a polyol having two or more hydroxyl groups and a polyisocyanate. The polyurethane is excellent in absorption ability for oil-in-water-in-oil cosmetic compositions, and thus the cosmetic composition does not easily evaporate even at high temperatures, and shows excellent compatibility as an impregnating material.

Polyurethane is used as polyol, polyether polyol, polyester polyol, polycarbonate polyol, polyolefin polyol, and accordingly, it is divided into polyether urethane foam, polyester urethane foam, polycarbonate urethane foam, and polyolefin urethane foam. Although not particularly limited in the present invention, polyether urethane foams, polyester urethane foams, and more preferably polyether urethane foams are preferably used as the impregnating material.

The polyether urethane foam includes a dry polyether urethane foam and a wet polyether urethane foam. In general, the wet polyether urethane foam has a smaller pore size and a dense structure than the dry polyether urethane foam. The surface properties of the dry polyether urethane foams are lipophilic, whereas the wet polyether urethane foams are hydrofoamed to have hydrophilic surface properties, and have a uniform and highly porous continuous micro-porous structure.

Polyether polyols have ether bonds (-O-) in their molecular structure, and polyester polyols have ester bonds (-C (= 0) -O-). In general, when the polyether-based polyol is used, the foam is produced in a soft and soft state, and when the polyester-based polyol is used, the foam is produced in a harder state.

Polyether-based urethane foams are advantageous in terms of absorbency, supporting ability, and discharging ability, and polyester-based urethane foams are advantageous in durability. However, polyether urethane foam has higher compatibility with water-in-oil-in-oil cosmetic composition than polyester-based urethane foam, so that the absorbency, carrying capacity, durability, and discharging ability required as the impregnating material described above are higher than those of polyester-based urethane foam. great. In addition, the polyether urethane foam has a higher pore size than the polyester urethane foam, and thus has high air permeability, a softer feeling and softness, excellent flexibility and elasticity, and excellent durability. It does not show crushing and tearing in the environment.

In addition, the cell structure of the polyurethane foam according to the present invention is open cell (semi-open cell), closed cell (closed cell), to satisfy the physical properties required as the impregnating material, Or a reticulated structure, each of which may be formed or a combination of two or more thereof.

As used herein, an open cell is a cell included in a foam, and means a cell that is entirely open, a semi-open cell means a cell that is at least partially open, and a closed cell is at least partially closed. It means a closed cell, and the reticular structure is formed through a reticulation process to remove the cell wall in the foam of the closed cell, the semi-open cell, or the open cell. It means 100% open cell, that is, a structure like a mesh.

The cosmetic composition is impregnated in the pores of the impregnating material, and is discharged by the applicator, in which case the impregnation and discharge of the cosmetic composition cannot be made when the cell structure of the foam having the pores is a closed cell. Therefore, the impregnating material has an open cell, a semi-open cell, and a reticulated structure, except in the case of 100% closed cell, and this cell structure may include a part of the closed cell according to the manufacture of the foam. Most preferably, by using the foam of the network structure, the absorption capacity, the supporting capacity and the discharge capacity of the cosmetic composition can be increased. The open cell, the half-open cell, and the foam of the reticular structure can be confirmed by cutting the cross section by photographing.

In addition, the parameters related to the cell structure along with the cell form of the foamed foam is the cell size of the foamed foam, the density of the foamed foam, the number of pores in the foamed foam, the Asker F hardness of the foamed foam. Parameters related to these cells are parameters that affect the absorbency, the supporting ability, the durability, and the discharging ability of the oil-in-water cosmetic composition.

The cell size of the foam is a parameter related to all of the absorbency, the supporting ability, the durability, and the discharging capacity of the cosmetic composition supported in the foam, and is also related to the feeling of use of the foam itself. In this case, the cell size of the foam may be an average value measured by an optical microscope (NIKON ECLIPSE 80i). The cell size has a level sufficient to exhibit the intended effect of the invention and is preferably between 200 μm and 600 μm, specifically between 300 μm and 500 μm. If the size is less than the above range, even if the supporting ability is high, the discharging of the cosmetic composition is not easy, on the contrary, if the size exceeds the supporting capacity of the cosmetic composition, the amount of discharge is excessively increased and the surface becomes rough, so that the cosmetic composition may be applied. When you can not give a soft feeling.

The density of the foam is related to the size and number of cells, and how much the cosmetic composition can be absorbed and supported in the foam and whether it can be discharged. Preferably, the foam used as the impregnating material according to the present invention may have a density of 1.0 to 3.0 pcf (pounds per cubic feet), more preferably 1.0 to 2.0 pcf. If the density of the foam is less than 1.0, the cosmetic composition is too much buried in usability, and if the density exceeds 3.0, there is a problem that it is difficult to effectively impregnate the cosmetic composition due to the lack of pores that can be impregnated with the cosmetic composition.

The number of pores in the foam is related to the number of cells and related to the physical properties of the impregnating material itself, ie ductility, elasticity, flexibility, softness, softness, and the like. The pore number refers to the number of pores per inch of foam foam, in this specification, the number of pores is measured by using the WI-QA-14 (ASTM standard) to accurately measure the number of pores on the horizontal, vertical 1 inch line average It may be a figure that pays off. Preferably, the foam used as the impregnating material according to the present invention may have a pore number of 40 to 120 ppi (number of pores within 1 inch), more preferably 60 to 90 ppi. When the number of pores of the foam is less than 40 ppi, the elasticity of the foam is difficult to control the flowability of the cosmetic composition, when the number of pores exceeds 120 ppi may be less durable when used.

In addition, the ASKER F hardness of the foam is the hardness as measured by an ASKER (manufacturer) DUROMETER HARDNESS measuring instrument (Type F), the hardness before the composition is supported on the foam. it means. Asker F hardness is a parameter related to the discharge capacity of the cosmetic composition supported in the foam, when the hardness is too high or low discharge may occur seriously or less. Preferably, the foam used as the impregnating material according to the present invention may have a hardness of 50 to 90 on the basis of the ASKER hardness tester F type (Type F). If the hardness is less than 50, the application composition (e.g., NBR puff) used in the fact type or the cosmetic composition impregnated with the polyurethane foam when applied by hand is excessively discharged, and the hardness exceeds 90. If it is too hard, there is a problem that the cosmetic composition is not easily discharged, so it is properly adjusted within the above range.

The foam as described above may be removable from the container, the user can be used to combine the foam after filling the cosmetic composition as desired in a container in which the foam is separated. In addition, the user can also use only replace the foam.

In addition, if necessary, the foam includes a foamed or flocked foam. In another aspect of the present invention, the coated foam is a coating of a polymer foam such as rubber, polyvinyl or polyurethane, and generally has a smaller cell size than the foam before coating. In another aspect of the invention, the flocked foam is a fiber adhered to a polymeric foam. The fibers may be one or more selected from the group consisting of cotton, acrylic, polyamide, nylon, polyester, silk and rayon, specifically cotton, acrylic, polyamide, nylon, polyester, silk, cotton and acrylic, cotton and Rayon, nylon and polyester and cotton, acrylic and polyester.

In addition, the foam according to the present invention has a diameter of 5 to 11 pi and a length of 15 to 22.5mm, the discharge of the content is not desired in the case of less than 5 pie, the amount of the discharge of the content is too large in the case of more than 11 pie there is a problem. The diameter and length of the discharge control sponge can be adjusted according to the vessel structure.

In addition, the foam is dependent on the size of the cosmetic container, but has a thickness of 1 to 50mm level. If the thickness is less than the above range, the amount of the cosmetic composition loaded is less. On the contrary, if the thickness exceeds the above range, in the discharge of the contents during use, the discharge is difficult without the remaining amount of the contents. In view of the above, the foam of the present invention may have a thickness of 6 to 29 mm, 7 to 28 mm, 8 to 27 mm, 9 to 26 mm or 10 to 25 mm.

Cosmetics according to the present invention is used by applying a cosmetic composition impregnated in the impregnating material buried in the applicator. Therefore, it is easy to use and hygienic because it does not get on the hands when applying the cosmetic composition.

The material and shape of the applicator is not particularly limited in the present invention, but when the skin of the cosmetic composition is applied, the marks should be applied smoothly without the occurrence of lines or lighting, so the pores are fine, and because the skin directly touches the skin, there should be a soft and cushioned feeling. Foam material is preferred. In particular, since the contents are contained in a certain part when applied to the skin, and the content exposed to the outside may be applied to the skin again, the material that does not expand when the cosmetic composition is applied to the applicator is preferable. .

The material of the applicator is ruby cell, acrylonitrile butadiene rubber (NBR), styrene butadiene rubber (SBR), natural rubber (NR), polyvinyl chloride, polyethylene, ethylene-vinylacetate butyl rubber (EVA), latex, silicone, Styrene-isoprene-styrene (SIS), styrene-ethylene-butylene-styrene (SEBS), polyvinyl alcohol (PVA), nitrile rubber, butyl rubber, chloroprene rubber (neoprene ^® , polyolefin, polyurethane, and ether-based polyurethane It may be a foam made of one or more selected from the group consisting of a mixture of and ester-based polyurethane, preferably rubicel, acrylonitrile butadiene rubber, or styrene butadiene rubber.

The applicator of such a material is excellent in compatibility because it does not excessively absorb the oil-in-water cosmetic composition.

The applicator defines the cell size, the number of pores and the hardness of the ASKER F together with the limitation of the material so that the cosmetic composition impregnated in the impregnating material can be easily buried and applied to the skin satisfactorily and the user has an excellent feeling.

Preferably, the cell size of the applicator is 50 μm to 500 μm, specifically 80 μm to 400 μm, such that the cell size is sufficient to exhibit the intended effect of the invention. If the size is less than the above range, the application ability of the cosmetic composition is not easy, on the contrary, if the size is exceeded, the surface becomes rough, and thus a soft feeling cannot be provided when the cosmetic composition is applied.

In addition, the number of pores (ppi) per inch of the applicator includes a foam that is 60 to 150, specifically 60 to 120, more specifically 80 to 100. Dispensing sponges with less than 60 pores per inch are less likely to discharge the cosmetic composition evenly, and dispensing sponges with more than 150 pores per inch have too small pore size to effectively dispense the cosmetic composition Difficult to adjust

And the Asker F hardness has a hardness of 10 to 110, preferably 50 to 100, more preferably 75 to 95. If the hardness value is less than the above range, the cosmetic composition is excessively discharged and applied. On the contrary, if the hardness value is exceeded, the cosmetic composition is too hard to be easily discharged and applied.

In addition, the applicator of the cosmetic according to the present invention may have a diameter of 20 pi or more and a length of 2 cm or more. When the diameter is less than 20 pi, the size may be less convenient for application, and the convenience may be reduced. The length may vary depending on physical properties. However, when the diameter is less than 2 cm, the cushioning property may be degraded and the adhesion of the makeup may be degraded.

Cosmetics as described above are available in a variety of formulations, for example makeup primer, makeup base, foundation, skin cover, lipstick, lip gloss, face powder, teak color, compact powder, twin cake, pact, powder pact, eye brown, eye Shadow, concealer, blusher, powder foundation, or airless formulation.

Hereinafter, preferred examples are provided to help understanding of the present invention. However, it is apparent to those skilled in the art that the following examples are merely to illustrate the invention that various changes and modifications can be made within the scope and spirit of the invention, and such changes and modifications belong to the appended claims. It is natural.

Preparation Example 1 Preparation of Sunscreen Composition

Tables 1 to 3 Examples 1 to 3, the oil-in-water type oil-in-water type UV protection cosmetic composition having a blocking power of SPF 50+, PA +++, Comparative example 1 and the oil-in-water type UV protection cosmetic composition Comparative Example 2, a composition, was prepared (unit: wt%).

(1) Preparation of oil-in-water-in-oil type sunscreen cosmetic composition (Examples 1 to 3)

The internal oil phase component of Table 1 was heated to 75 ° C. to uniformly dissolve and mixed to prepare an internal oil phase part, and the water phase component was heated to 70 ° C. to uniformly dissolve and mixed to prepare an aqueous phase part. The inner oil phase was added to the water phase under stirring to prepare an oil-in-water emulsion. In addition, the oil-in-water emulsion was separately added to the external oil phase, which was separately uniformly dissolved and mixed, under stirring to prepare an oil-in-water cosmetic composition. At this time, the molecular weight of the methoxy pIG-114 polyepsilon caprolactone was 10000 g / mol.

1 is an optical microscope image of the cosmetic composition obtained in Example 1. 1, it can be seen that there are small discontinuous internal emulsified particles (inner oil phase) inside the large particles (water phase) of 10 μm or more, and the inorganic sunscreen agent is dispersed in the outer oil phase.

turn	Composition (100 wt%)	Example 1	Example 2	Example 3
Internal oil component	Fiji-100 Stearate	0.7	-	0.7
	C14-22 Alcohol * C12-20 Alkyl Glucoside	-	0.8	-
	Methoxypig-114 Polyepsilon Caprolactone	0.3	0.3	0.3
	Ethylhexylmethoxycinnamate	6.5	7	6.5
	Bisethylhexyloxyphenol methoxyphenyl triazine	3	4	3
Water component	Purified water	To 100	To 100	To 100
	E.D.T.A.-2NA	0.02	0.02	0.02
	Propanediol	8	8	8
	Phenoxyethanol	0.4	0.4	0.4
	Ethylhexylglycerin	0.05	0.05	0.05
	Polyacrylate-3 * Polyisobutene * Polysorbate 20	0.24	0.3	0.24
External oil ingredient	Isoamyl-pmethoxycinnamate	2	2	2
	Ethylhexyl salicylate	4	4	4
	Lauryl Fig-9 Polydimethylsiloxyethyldimethicone	2.5	3
	Fiji-10 dimethicone			3
	Cyclopentasiloxane	21	15	21
	Phenyltrimethicone	6	2	6
	Disteadimonium hectorite	2	One	2
	Titanium Dioxide * C12-15 Alkylbenzoate	5	8	5
	Zinc Oxide * Cyclopentacylic Acid	15	10	15
	Silica	2	2	2

(2) Preparation of water-in-oil type sunscreen cosmetics (Comparative Example 1)

Dissolved and mixed raw materials No. 1 to 11 of Table 2 below at 40 ° C. to prepare an oil phase part, and No. 12 to 16 were uniformly dissolved and mixed at 40 ° C. to prepare an aqueous phase part. A water-in-oil cosmetic composition was prepared by adding an aqueous phase to the oil phase under stirring.

turn	Composition (100 wt%)	Comparative Example 1
One	C12-15 Alkylbenzoate	10.00
2	Titanium dioxide	8.00
3	Zinc oxide	8.00
4	Fiji-10 dimethicone	3.00
5	Ethylhexylmethoxycinnamate	7.00
6	Ethylhexyl salicylate	4.00
7	Disteadimonium hectorite	7.00
8	Lauryl Fig-9 Polydimethylsiloxyethyldimethicone	1.50
9	Silica	3.00
10	Cyclopentasiloxane	21.00
11	Phenyltrimethicone	6.00
12	Purified water	To 100
13	E.D.T.A.-2NA	0.02
14	Propanediol	3.00
15	Phenoxyethanol	0.3
16	Ethylhexylglycerin	0.05

(3) Preparation of oil-in-water type sunscreen cosmetics (Comparative Example 2)

The raw materials 12 to 17 of Table 3 were mixed at 70 ° C. to prepare a water phase part, and the raw materials 1 to 6 of Table 3 were dissolved at 70 ° C. in a separate container to prepare an oil phase part. In addition, in a separate container, the raw materials 7 to 11 shown in Table 3 below were stirred and dissolved in an azimixer to prepare a silicone part. Then, the oil phase part, the silicone part, and the raw materials No. 18 to 20 were sequentially added to the water phase part, and stirred and mixed with a homomixer. After degassing the mixture, the mixture was cooled to 30 ° C., thereby preparing an oil-in-water type sunscreen cosmetic composition.

turn	Composition (100 wt%)	Comparative Example 2
One	Ethylhexylmethoxycinnamate	3.0
2	Bisethylhexyloxyphenol methoxyphenyl triazine	6.0
3	C12-15 alcohols benzoate	6.0
4	Cetearyl Alcohol	2.0
5	Glyceryl Stearate * Fiji-100 Stearate	1.0
6	Lipophilic glyceryl stearate	1.0
7	Cyclopentasiloxane * cyclohexasiloxane	5.0
8	Dimethicone	3.0
9	Silica	1.0
10	Titanium Oxide * Cyclopentasiloxane * Propylene Glycol Isostearate * Aluminum Stearate * Polyhydroxystearic Acid * Alumina	5.0
11	Titanium Dioxide * Stearic Acid * Alumina	2.0
12	Purified water	To 100
13	Disodium ID	0.05
14	Butylene Glycol	11.0
15	Hydroxyethyl acrylate / sodium acryloyldimethyl taurate copolymer	0.3
16	Phenoxyethanol	0.3
17	Ethylhexylglycerin	0.05
18	Purified water	3.5
19	Carbomer	0.07
20	Tromethamine	0.88

Experimental Example 1 Measurement of UV Protection Index and Water Resistance

The UV blocking ability of Examples 1 to 3 and Comparative Examples 1 and 2 prepared in Preparation Example 1 was measured to confirm that there is a similar UV blocking effect. The results are shown in Table 4.

	Example 1	Example 2	Example 3	Comparative Example 1	Comparative Example 2
SPF (average)	56.3	62.7	52.4	55.7	53.8
Water resistance (average)	72.8	65.6	75.2	76.1	51.7

Experimental Example 2: Comparison of Formulation Transparency (Cloudy)

Example 1 and Comparative Example 1 prepared in Preparation Example 1 were deposited on a polyurethane sponge, and applied to a black acrylic plate with a puff to compare white turbidity. 2 is a comparison photograph.

Referring to FIG. 2, in Example 1, almost no turbidity was observed, whereas in Comparative Example 1, turbidity was severe. This is because the UV blocking ability of Example 1 and Comparative Example 1 is similar, but a difference occurs in the content of the inorganic sunscreen.

Experimental Example 3: Evaluation of Usability

The compositions of Example 1 and Comparative Examples 1 and 2 were immersed in a polyurethane sponge which is an impregnating material in the foam form to prepare a cosmetic.

As the polyurethane sponge used, a foam having a pore number of 60 ppi, made of a dry polyether urethane foam, was used. The density of the foam used was 1.8 lb / ft ³ , the hardness was based on 70 ASKER hardness type (Type). The cell size was 350 μm. The hardness is the hardness before impregnation of the foam. Pore count is the average of the number of pores on the horizontal and vertical 1 inch line using WI-QA-14 (ASTM standard). Density was measured by ASTM D3574 method and cell size was measured by optical microscope (NIKON ECLIPSE 80i).

30 women in their 20s to 40s use the cosmetics and measure 10 points (1 point: very poor to 10 points) regarding the moisture, coolness, freshness before and after application, moisture and transparency after application. : Very excellent). The results are shown in Table 5 below.

		Example 1 (Oil-in-water)	Comparative Example 1 (Water-in-oil)	Comparative Example 2 (Oil-in-water)
When applying	Moisture	7.6	6.1	8.1
	coolness	8.2	7.4	8.7
	Freshness (no stickiness)	7.6	6.4	7.5
After application	Freshness (no residue)	8.6	6.2	7.9
	Moist	7.6	6.1	8.1
	transparency	9.2	6.8	9.4

As a result of the evaluation of feeling, Example 1 was less sticky when applying the skin compared to Comparative Example 1 of the water-in-oil type, and it was fresh without any residual feeling after application, and was excellent in transparency. In addition, Example 1 has realized a feeling of moisture and cool feeling similar to Comparative Example 2 of the oil-in-water type.

This is because since the content of the inorganic sunscreen in Example 1 was reduced, the amount of the polar oil and the dispersant used to disperse the inorganic sunscreen could be reduced.

Experimental Example  4: With impregnating material  Compatibility Comparison

In order to compare the compatibility of the three cosmetic compositions of Preparation Example 1 with the polyurethane sponge as an impregnating agent, 16 g of the cosmetic compositions of Examples 1, Comparative Examples 1 and 2 were each placed in a beaker and completely placed in a polyurethane sponge having a diameter of 50 mm. It was impregnated to compare the cosmetic composition (content) absorption rate. In addition, the polyurethane sponge impregnated with the cosmetic composition was stored in a constant temperature bath at 45 ° C. for 24 hours, and then the amount of content remaining in the sponge was measured. At this time, the viscosity of each content was similar at the level of 15000 ~ 17000 cps. The viscosity is Spindle Number No. It was measured with a BROOKFIELD viscosity measuring instrument (BROOKFIELD RVDV-III ULTRA (Serial No. RY6521152)) set at 63 and spindle speed (RPM) 12 rpm.

		Example 1 (Oil-in-water)	Comparative Example 1 (Water-in-oil)	Comparative Example 2 (Oil-in-water)
After impregnation	Content Absorption Rate	99.1%	95.9%	86.8%
	Absorption Sponge Diameter	52.5 mm	52.0 mm	50.5 mm
24 ℃ storage for 24 hours	Content residual rate	96.8%	97.2%	82.4%

As shown in Table 6, Example 1 and Comparative Example 1 was well compatible with the polyurethane sponge, the contents were well absorbed, thereby increasing the diameter of the sponge. However, in Comparative Example 2, the affinity with nonpolar polyurethane was not good, so absorption was not good, and the sponge diameter did not change significantly. Moreover, as a result of storing for 24 hours in a 45 degreeC thermostat, Example 1 and Comparative Example 1 had the content residual rate higher than Comparative Example 2.

Since the cosmetic composition is better absorbed into the impregnating material, the content evaporation is suppressed when stored at a high temperature, the higher the absorbency, the better the compatibility with the impregnating material. From the above results, it can be confirmed that Example 1 and Comparative Example 1 is superior in compatibility with the impregnating material of the polyurethane material than Comparative Example 2.

Experimental Example 5: Comparison of Compatibility with Applicator

In order to compare the compatibility of the three cosmetic compositions of Preparation Example 1 and the applicator (puff), the contents of Examples 1, Comparative Examples 1 and 2 are absorbed by 1 g in three puffs (Rubycell, NBR, SBR) Expansion was observed and the degree of expansion was indicated by the number of '+'.

	Example 1	Comparative Example 1 (water-in-oil)	Comparative Example 2 (oil-in-water)
Ruby cell	maintain	maintain	+
NBR	maintain	maintain	++
SBR	maintain	maintain	++

If the absorbency of the contents to the applicator is too high, there is a problem in feeling due to the wet feeling when applied to the skin, there is a possibility of hygiene because the contents exposed to the outside may be applied to the skin again. Therefore, it can be said that the cosmetic composition absorbed by the applicator appropriately is excellent in compatibility with the applicator.

Referring to Table 7, it can be seen that Comparative Example 2 of the oil-in-water type expands the puff, whereas Example 1 of the water-in-oil type and Comparative Example 1 of the water-in-oil type maintain the shape of the puff. From this, it can be confirmed that Example 1 and Comparative Example 1 have excellent compatibility with the puff.

From the results of Experimental Examples 1 to 5, the water-in-oil-in-oil cosmetic composition of Example 1 can realize a refreshing and moist feeling and a transparent formulation while having high UV blocking effect and water resistance, and deposited on an impregnating material such as a polyurethane sponge. It can be seen that the oil-in-water type is the most suitable formulation for application to a cushion type applied with an applicator such as ruby cell or latex puff.

Claims (11)

1. In the cosmetics to be applied to the cosmetic composition impregnated inside the impregnated material in the applicator,

   The cosmetic composition is a water-in-oil-in-oil cosmetic composition.
2. The method of claim 1,

   The oil-in-water oil-based cosmetic composition is a cosmetic composition, characterized in that the sunscreen cosmetic composition.
3. The method of claim 2,

   The oil-in-water type cosmetic composition is characterized in that it comprises an organic UVA blocker and an amphiphilic polymer.
4. The method of claim 3,

   The organic UVA blocker is bisethylhexyloxyphenol methoxyphenyl triazine, butyl methoxydibenzoylmethane, and diethylamino hydroxybenzoyl hexyl benzoate. Cosmetics, characterized in that at least one selected from the group consisting of.
5. The method of claim 3,

   The organic UVA blocker cosmetics, characterized in that contained in 0.1 to 10.0% by weight based on the total weight of the cosmetic composition.
6. The method of claim 3,

   Cosmetics, characterized in that the molecular weight of the amphipathic polymer is 1000 to 15000 g / mol.
7. The method of claim 3,

   The amphipathic polymer is a cosmetic, characterized in that it contains methoxy pg-114 polyepsilon caprolactone.
8. The method of claim 3,

   The amphipathic polymer is a cosmetic, characterized in that contained in 0.1 to 10% by weight based on the total weight of the cosmetic composition.
9. The method of claim 1,

   The applicator is cosmetics, characterized in that the puff of any one material of ruby cell, acrylonitrile butadiene rubber (NBR), and styrene butadiene rubber (SBR).
10. The method of claim 1,

    The impregnating material is a cosmetic, characterized in that the polyether-based urethane foam or polyester-based urethane foam.
11. The method of claim 1,

    Formulation of the cosmetics may be a makeup primer, makeup base, foundation, skin cover, lipstick, lip gloss, face powder, cheek color, compact powder, twin cake, pact, powder pact, eye brown, eye shadow, concealer, blush, powder foundation or Cosmetics, characterized in that the airless formulation.

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