WO2019112082A1 - 콜레스테릭 액정 입자를 포함하는 화장료 조성물 및 그의 제조방법 - Google Patents
콜레스테릭 액정 입자를 포함하는 화장료 조성물 및 그의 제조방법 Download PDFInfo
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- WO2019112082A1 WO2019112082A1 PCT/KR2017/014200 KR2017014200W WO2019112082A1 WO 2019112082 A1 WO2019112082 A1 WO 2019112082A1 KR 2017014200 W KR2017014200 W KR 2017014200W WO 2019112082 A1 WO2019112082 A1 WO 2019112082A1
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- liquid crystal
- cholesteric liquid
- cosmetic composition
- crystal particles
- porous
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
- A61K8/00—Cosmetics or similar toiletry preparations
- A61K8/18—Cosmetics or similar toiletry preparations characterised by the composition
- A61K8/30—Cosmetics or similar toiletry preparations characterised by the composition containing organic compounds
- A61K8/63—Steroids; Derivatives thereof
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
- A61K8/00—Cosmetics or similar toiletry preparations
- A61K8/02—Cosmetics or similar toiletry preparations characterised by special physical form
- A61K8/0295—Liquid crystals
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
- A61K8/00—Cosmetics or similar toiletry preparations
- A61K8/02—Cosmetics or similar toiletry preparations characterised by special physical form
- A61K8/04—Dispersions; Emulsions
- A61K8/06—Emulsions
- A61K8/062—Oil-in-water emulsions
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
- A61K8/00—Cosmetics or similar toiletry preparations
- A61K8/02—Cosmetics or similar toiletry preparations characterised by special physical form
- A61K8/04—Dispersions; Emulsions
- A61K8/06—Emulsions
- A61K8/064—Water-in-oil emulsions, e.g. Water-in-silicone emulsions
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
- A61K8/00—Cosmetics or similar toiletry preparations
- A61K8/18—Cosmetics or similar toiletry preparations characterised by the composition
- A61K8/30—Cosmetics or similar toiletry preparations characterised by the composition containing organic compounds
- A61K8/33—Cosmetics or similar toiletry preparations characterised by the composition containing organic compounds containing oxygen
- A61K8/34—Alcohols
- A61K8/345—Alcohols containing more than one hydroxy group
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
- A61K8/00—Cosmetics or similar toiletry preparations
- A61K8/18—Cosmetics or similar toiletry preparations characterised by the composition
- A61K8/72—Cosmetics or similar toiletry preparations characterised by the composition containing organic macromolecular compounds
- A61K8/73—Polysaccharides
- A61K8/731—Cellulose; Quaternized cellulose derivatives
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
- A61K8/00—Cosmetics or similar toiletry preparations
- A61K8/18—Cosmetics or similar toiletry preparations characterised by the composition
- A61K8/72—Cosmetics or similar toiletry preparations characterised by the composition containing organic macromolecular compounds
- A61K8/73—Polysaccharides
- A61K8/737—Galactomannans, e.g. guar; Derivatives thereof
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61Q—SPECIFIC USE OF COSMETICS OR SIMILAR TOILETRY PREPARATIONS
- A61Q19/00—Preparations for care of the skin
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
- A61K2800/00—Properties of cosmetic compositions or active ingredients thereof or formulation aids used therein and process related aspects
- A61K2800/10—General cosmetic use
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
- A61K2800/00—Properties of cosmetic compositions or active ingredients thereof or formulation aids used therein and process related aspects
- A61K2800/40—Chemical, physico-chemical or functional or structural properties of particular ingredients
- A61K2800/41—Particular ingredients further characterized by their size
- A61K2800/412—Microsized, i.e. having sizes between 0.1 and 100 microns
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
- A61K2800/00—Properties of cosmetic compositions or active ingredients thereof or formulation aids used therein and process related aspects
- A61K2800/40—Chemical, physico-chemical or functional or structural properties of particular ingredients
- A61K2800/48—Thickener, Thickening system
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
- A61K2800/00—Properties of cosmetic compositions or active ingredients thereof or formulation aids used therein and process related aspects
- A61K2800/80—Process related aspects concerning the preparation of the cosmetic composition or the storage or application thereof
- A61K2800/805—Corresponding aspects not provided for by any of codes A61K2800/81 - A61K2800/95
Definitions
- the present invention relates to a cosmetic composition comprising cholesteric liquid crystal particles and a process for producing the same, and more particularly, to a cosmetic composition comprising cholesteric liquid crystal particles,
- the present invention relates to a cosmetic composition having improved viewing angle dependency wherein a color changes depending on a viewing angle, and a method for producing the same.
- a cholesteric liquid crystal is a liquid crystal in which each layer of molecules arranged in a plane with a molecular arrangement is spirally rotated.
- the liquid crystal is utilized for a temperature sensor, a display element, and the like utilizing its unique optical characteristics.
- cosmetics using the visual dependency that the color tone changes depending on the viewing angle are attracting attention.
- JP2010-90206A discloses a cosmetic composition containing an alcohol, an emulsion and an emulsifier.
- JP2010-90206A has a cholesteric phase at room temperature or body temperature using a vegetable raw material and exhibits an aesthetic effect when applied to human lips or skin Liquid crystal compositions and cosmetic compositions containing such compositions.
- the present inventors have made efforts to incorporate the cholesteric liquid crystal into a liquid formulation in a certain form.
- the particle size is controlled by the film emulsification method, and cholesteric liquid crystal particles having a uniform particle size distribution are dispersed in water It has been found that the stability of the particles can be ensured in the case of producing an emulsion and the characteristic of changing the color according to the viewing angle which is a unique appearance of the cholesteric liquid crystal particle can be improved and the present invention has been completed.
- An object of the present invention is to provide a cosmetic composition having improved visual angle dependency of color changing depending on a viewing angle which is a unique appearance characteristic of cholesteric liquid crystal particles.
- Another object of the present invention is to provide a process for producing a cosmetic composition comprising the cholesteric liquid crystal particles.
- the cosmetic composition comprising cholesteric liquid crystal particles according to the present invention contains cholesteric liquid crystal particles having an average particle diameter of 50 to 500 mu m and having a narrow particle size distribution, Or the visual dependency of changing the color tone is greatly improved.
- FIG. 1 is a schematic view for explaining an apparatus to which a method for manufacturing a cosmetic preparation according to the present invention is applied.
- FIG. 2 is a photograph of a cosmetic composition comprising cholesteric liquid crystal particles produced according to the production method of the present invention.
- FIG. 3 is a photograph of a cosmetic composition comprising cholesteric liquid crystal particles prepared by using an emulsifier of an agitator type.
- Figure 4 is a photograph of a cosmetic composition comprising cholesteric liquid crystal particles prepared using a homogenizer mixer.
- FIG. 5 is a graph comparing particle distributions of a composition prepared according to the production method of the present invention with a composition prepared using a stirrer type and homogenizer mixer.
- the cosmetic composition of the present invention comprises cholesteric liquid crystal particles having an average particle diameter of 50 to 500 ⁇ m.
- the cholesteric liquid crystal particles may be present in the form of a dispersion of an oil-in-water type emulsion or a water-in-oil type emulsion.
- the cholesteric liquid crystal particles may have a degree of dispersion (?) Of 0.35 or less.
- the content of the cholesteric liquid crystal particles may be 0.1 to 10% by weight.
- the emulsion is an underwater type emulsion and the water portion of the underwater type emulsion may comprise 10 to 50 wt% of a moisturizer and 0.01 to 1.0 wt% of an increasing amount and purified water.
- the method for producing a cosmetic composition according to the present invention comprises the steps of: preparing liquid crystal portions each including a cholesteric liquid crystal; And passing the liquid crystal portion through a porous film and dispersing the liquid crystal portion in a continuous phase to obtain an emulsion by converting the liquid crystal portion into a liquid crystal particle dispersed phase.
- the manufacturing method may further include cooling the emulsion.
- the porous membrane may be porous alumina, porous zirconia, porous stainless steel or porous glass.
- the pores of the porous membrane may have an average diameter of 0.1 to 2 mm.
- the cosmetic composition according to the present invention comprises cholesteric liquid crystal particles in a water-in-oil or water-in-oil emulsion in dispersed or continuous phase.
- the cholesteric liquid crystal refers to a compound whose molecular structure has a spiral structure in a liquid crystal state. These are layered materials and have a structure in which the orientation axes vary from layer to layer. Therefore, when the cholesteric liquid crystal is irradiated with light, the light of circularly polarized light of a specific wavelength range corresponding to the direction of the rotation direction of the spiral of the liquid crystal molecules and the length of the pitch is reflected. For example, when visible light is irradiated, light of a specific wavelength corresponding to the pitch of the liquid crystal is selectively reflected. In addition, unlike pigments or dyes that exhibit color due to the absorption of light, cholesteric liquid crystals have optical properties such that they have a visual dependency in which the color tone changes depending on the viewing angle. The present invention improves the degree of visual- .
- the cholesteric liquid crystal applicable to the cosmetic composition of the present invention is not particularly limited, and any liquid crystal compound capable of exhibiting visual dependency in which the color or hue varies depending on the viewing angle can be used.
- the liquid crystal may be an animal or a plant-derived cholesterol, a derivative thereof, or a polymer-derived one.
- cholesterol or a derivative thereof is used as the liquid crystal in consideration of the fact that the cosmetic composition of the present invention can be directly contacted with the skin of the human body or a part of the composition can be absorbed.
- Some of the cholesterol derivatives are not only liquid crystalline but also part of the intercellular lipids. They are highly effective for stability and skin moisturization. They have a skin protection effect, can protect the skin from external stimuli without side effects, (For example, see KR2014-0147505A).
- the cholesterol derivative refers to a compound obtained by halogenating or esterifying the hydroxyl group at the terminal of the sterol molecule.
- the cholesterol or its derivatives include cholesterol, cholesteryl oleyl carbonate, cholesteryl nanoate, cholesteryl chloride, cholestanol, coprostanol, campesterol, stigmasterol, sitosterol, ergosterol, Dihydrocholesterol, cervolysterol, lanosterol, dihydrolanosterol, aginosterol, gihydroagannosterol, phytosterol, and the like. These may be used alone or in combination of two or more. The combination is a means commonly practiced in the art for raising or lowering the temperature representing the liquid crystal state.
- the cholesteric liquid crystal particles are present in the form of a dispersed phase or a continuous phase in an aqueous or water-in-oil type emulsion.
- An underwater type emulsion is a form in which a liquid phase containing a liquid crystal is present in a liquid phase on a water phase in a dispersed phase in the form of a droplet, and a water phase type emulsion is in the opposite form.
- the former is in a usual form, but is not limited thereto.
- the size of the cholesteric liquid crystal particles forming the dispersed phase is 50 ⁇ to 500 ⁇ , preferably 50 ⁇ to 300 ⁇ , and more preferably 100 ⁇ to 200 ⁇ in average diameter. According to the inventors' repeated experiments, it was confirmed that the visual dependency of the hue changes depending on the viewing angle when the cholesteric liquid crystal compound exists in a dispersed phase is influenced by the average size of the particles. Specifically, if the average diameter does not reach 50 ⁇ m, the suspension depends on the viewing angle. On the other hand, when the average diameter exceeds 500 ⁇ m, the probability of coalescence between particles becomes large, and the stability of the formulation is greatly reduced.
- the particle size distribution of the droplets present in the dispersed phase preferably has a dispersion degree ( ⁇ ) of 0.35 or less (see Journal of the Japanese Society for Food Science and Technology, 42, 548 ⁇ 555), more preferably 0.3 Or less. Specifically, when? Exceeds 0.35, the uniformity of the produced particles is important because the color does not change uniformly depending on the angle.
- the physical properties of the particles produced by the present invention are measured as follows.
- Average particle size The average particle size of the particles was measured using a light-scattering particle size analyzer (MasterSizer 2000. Malvern Instruments Ltd., UK).
- the content of the cholesteric liquid crystal compound may be preferably 0.1 to 10% by weight, more preferably 0.1 to 5% by weight. If the content of the liquid crystal compound is less than 0.1% by weight, the amount of light reflection is insufficient, and the appearance of visual dependency in which the color tone is changed by viewing angle can not be expected. On the other hand, when the content is more than 10% by weight, the gap between the particles becomes very narrow, so that the appearance of visual dependency in which the color tone is changed by an apparent angle can not be expected.
- the cosmetic composition of the present invention may further contain humectants, thickeners, and other additives known in the art within the range that does not impair the effect of changing color or tone depending on the above-described viewing angles.
- the moisturizing agent examples include hydrocarbons, fats, hardened oils, ester oils, fatty acids, low-grade oils and the like, regardless of the origin such as animal oils, vegetable oils, synthetic oils, and solid oils, semi-solid oils, liquid oils, Alcohols, glycols, glycerols, higher alcohols, silicone oils, fluorinated oils, lanolin derivatives, and plant sterol derivates.
- at least one polyol moisturizer selected from the group consisting of glycerin, butylene glycol, propylene glycol, dipropylene glycol, diglycerin, pentylene glycol, isoprene glycol and erythritol is used.
- the content of the moisturizing agent may be, for example, 10 to 50% by weight.
- the thickening agent is a polymer for viscosity control and is a polymer derived from plants, animals or microorganisms.
- examples of the thickening agent include guar gum, xanthan gum, natto gum, ethyl cellulose, hydroxyethyl cellulose, carboxymethyl cellulose, sodium polyacrylate, Glyceryl polyacrylate, and hydroxypropyl cellulose may be used alone or in combination of two or more.
- the content of the thickener may be, for example, 0.01 to 1.0% by weight.
- additives include, for example, antioxidants, sunscreens / absorbents, surfactants, preservatives, diluents, pH adjusters, skin nutrients, perfumes, dyes and pigments.
- the content of the additives can be easily selected by a person skilled in the art, and the blending amount thereof may be 0.01 to 10% by weight based on the total weight of the composition.
- the present invention provides a process for producing a cosmetic composition comprising the above-mentioned cholesteric liquid crystal particles.
- the cosmetic preparation method of the present invention comprises the steps of preparing a liquid crystal part including a cholesteric liquid crystal; And passing the liquid crystal portion through a porous film and dispersing the liquid crystal portion in a continuous phase to obtain an emulsion by converting the liquid crystal portion into a liquid crystal particle dispersed phase.
- a liquid crystal portion including a cholesteric liquid crystal is prepared.
- the cholesteric liquid crystal compound when it is in a liquid state, it can be prepared only by a liquid crystal compound.
- the liquid state When the liquid state is in a liquid state or when it is in a solid state, it is dissolved in a suitable organic solvent, Can be prepared.
- the kind and content of the cholesteric liquid crystal compound contained in the liquid portion are as described above.
- the liquid crystal part of the present invention can be prepared, for example, only with a cholesteric liquid crystal compound, and can be prepared by blending with an oil. If the compounding ratio exceeds 20% with respect to the cholesteric liquid crystal compound, And the visual expectation effect disappears, so the compounding ratio should be observed.
- the oil may be at least one oil selected from a hydrocarbon-based oil, an ester-based oil, a triglyceride-based oil, a vegetable oil, and a silicone-based oil.
- an emulsion containing a cholesteric liquid crystal in granular form is obtained by passing the liquid crystal part through the porous film and then dispersing the liquid crystal part into a continuous phase by converting the liquid crystal part into a dispersed phase in the form of droplets.
- the method of passing the liquid crystal part through the pores of the porous membrane and then dispersing it in the continuous phase uses a method known as " membrane emulsification ".
- the film emulsification method is applied so that the liquid crystal portion is converted into the liquid droplet between the surface of the film and the continuous phase while the liquid crystal portion passing through the pores of the porous film is in contact with the continuous phase, and the cholesteric liquid crystal particles are dispersed do.
- the porous membrane can be, for example, porous alumina, porous zirconia, porous stainless steel or porous glass, preferably a film of Shirasu porous glass (SPG).
- SPG Shirasu porous glass
- Siras porous glass membrane can be fabricated by controlling the pore size of the membrane in the range of 0.1 ⁇ m to 50 ⁇ m by 0.1 ⁇ m as compared with other kinds of membranes.
- the membrane is not deformed or broken by the reaction in the presently produced organic and inorganic porous film, and the surface modification can be easily changed.
- it is possible to manufacture both O / W (water type) and W / O (water type) .
- the pores of the porous membrane may be selected from those having an average diameter of 0.1 to 2 mm, preferably 10 to 50 ⁇ m.
- the relationship between the pore size of the membrane and the particle size to be produced has a relationship as shown in the following equation.
- the constant value c in the present invention is about 3 to 4,
- the particle size there are various factors affecting the particle size such as the pressure of the dispersed phase, the stirring speed of the continuous phase, the viscosity of the continuous phase and the dispersed phase. In order to produce uniform particles, the pressure of the dispersed phase and the stirring speed .
- the second step may be carried out at a temperature of, for example, 30 to 80 ° C.
- the heating is carried out for the purpose of ensuring the fluidity of the liquid crystal part charged into the dispersed phase or improving the solubility of the other composition added to the liquid crystal part and water, and controlling the size of the dispersed phase formed in the other emulsion.
- a cosmetic composition containing cholesteric liquid crystal particles having an average particle diameter of 50 to 500 ⁇ ⁇ may be prepared by cooling the emulsion obtained in the above step to a room temperature or a low temperature, for example, a temperature of up to -30 ⁇ ⁇ .
- FIG. 1 is a schematic view for explaining an apparatus to which a method for manufacturing a cosmetic preparation according to the present invention is applied.
- the dispersed phase tank 3 is provided with a warming device 2 so that the dispersed phase prepared in the dispersed phase tank 3, that is, the liquid crystal portion of the present invention can be heated to a temperature of, for example, 30 to 80 ⁇ .
- a pressurizing device 1 is provided at one side of the dispersed phase tank 3 so that the dispersed phase prepared in the dispersed phase tank 3 is conveyed to the continuous phase tank 6 through the transfer line 4 .
- the transfer line 4 and the continuous phase tank 6 may be provided with a heating device 2.
- the continuous phase tank 6 is filled with a continuous phase, for example, when the composition of the present invention is produced in the form of an oil-in-water emulsion.
- the continuous phase may contain other ingredients other than the cholesteric liquid crystal compound present in the form of a dispersed phase in the cosmetic composition of the present invention, for example, moisturizers, thickeners, and other additives.
- the liquid crystal portion transferred through the transfer line 4 is converted into droplets in the continuous phase while passing through the membrane module 5 including the porous membrane provided in the continuous phase tank 6, and is formed into a dispersed phase.
- the membrane module 5 comprises a porous membrane.
- the formation of the dispersed phase can be carried out, for example, with the water phase portion heated to 30 to 80 ⁇ .
- paddles 7 are provided in the continuous phase tank 6 to stir the emulsion containing the cholesteric liquid crystal particles present as a dispersed phase in the aqueous continuous phase.
- the size of the cholesteric liquid crystal particles present as a dispersed phase in the water phase can be freely controlled and an emulsion having a uniform particle size distribution can be obtained. This is because the particle size can be controlled according to the pore size of the membrane by using a porous membrane having a uniform pore size instead of mechanical pulverization, which is the principle of the conventional emulsification method.
- the external force applied to the generated cholesteric liquid crystal particle For example, liquid crystal particles can be obtained in a state in which a physical external force such as a shearing force accompanying stirring or a pressure accompanying homogenizer is small. Therefore, the damage of the liquid crystal particles is small.
- the cosmetic composition having cholesterol liquid crystal inherent characteristics can be well expressed, and the visual dependence of color or hue can be changed according to the viewing angle.
- Example 1 Preparation of cosmetic composition according to the production method of the present invention
- the aqueous phase was charged into the continuous phase tank 6 shown in Fig. 1, which was capable of temperature control and stirring, heated to 40 to 60 ⁇ , and stirred at 100 to 500 rpm. Then, the cholesteric liquid crystal base (UC10, LCR Hallcrest, USA) is put into the dispersed phase tank 3 and the mixture is emulsified through the module 5 provided with a film on the top of the water by applying a pressure of 5 to 40 kPa, Was dispersed in water.
- UC10 cholesteric liquid crystal base
- the resulting composition was cooled to 30 ⁇ , and a cosmetic composition whose color changed according to the viewing angle was finally prepared by the cholesteric liquid crystal particles.
- Example 1 Water top water 86.8 Carbomer 0.2 glycerin 5 Dipropylene glycol 5 1,2HEXANEDIOL 2 Cholesteric liquid Liquid crystal base
- Comparative Example 1 Preparation of cosmetic composition using emulsifier of stirrer type
- the water phase was added to an emulsion tank capable of temperature control and stirring, and dissolved by heating at 40 to 60 ° C.
- the cholesteric liquid crystal part was placed on the water, and stirred at 100 to 500 rpm to prepare cholesteric liquid crystal particles.
- the composition of the aqueous phase was the same as in Example 1.
- the cosmetic composition containing the cholesteric liquid crystal particles obtained was cooled to 30 ⁇ to prepare a cosmetic composition.
- the water phase was added to an emulsion tank capable of temperature control and stirring, and dissolved by heating at 40 to 60 ° C.
- the cholesteric liquid crystal part was placed on the water and stirred at 2000 to 3000 rpm using a homogenizer mixer to prepare cholesteric liquid crystal particles.
- the composition of the aqueous phase was the same as in Example 1.
- the cosmetic composition containing the cholesteric liquid crystal particles obtained was cooled to 30 ⁇ to prepare a cosmetic composition.
- Fig. 2 is a photograph of a cosmetic composition comprising cholesteric liquid crystal particles prepared according to Example 1. Fig. From FIG. 2, it can be confirmed that the cosmetic composition of the present invention exhibits a unique appearance in which the color changes depending on the viewing angle by the cholesteric liquid crystal particles.
- 3 and 4 are photographs of the cosmetic composition prepared according to Comparative Examples 1 and 2, respectively.
- the cosmetic composition prepared by using the emulsifier of the stirrer type cholesteric liquid crystal particles are produced and the color changes according to the viewing angle.
- the size is not regular and the color change is constant It can be confirmed that it is difficult to have a distinctive and clear appearance than in Fig. From Fig. 4, it can be seen that the cosmetic composition prepared by using the homogenizer mixer is very small in particle size and is not visible to the naked eye, and it is confirmed that the inherent characteristics of the cholesteric liquid crystal are not exhibited.
- Table 2 shows the average particle size and the degree of dispersion (?) Of Example 1 and Comparative Examples 1 and 2. According to the above-mentioned report of R. Katoh et al., When it was judged that ⁇ was not more than 0.35, it was found that the average particle size was 100 ⁇ m or more and ⁇ was 0.35 or less It is uniform and can see a certain color change according to the angle. In the case of Comparative Example 1, the average particle size was large. However, as shown in FIG. 3, when? Exceeds 0.35, it is difficult to expect a certain color change depending on the angle because the particle size is uneven.
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Abstract
Description
구분 | 성분(중량%) | 실시예1 |
수상부 | 물 | 86.8 |
카보머 | 0.2 | |
글리세린 | 5 | |
디프로필렌글리콜 | 5 | |
1,2HEXANEDIOL | 2 | |
콜레스테릭액정부 | 액정베이스 | 1 |
실시예1 | 비교예1 | 비교예2 | |
평균입자크기(μm) | 116.4 | 220.07 | 25.99 |
α | 0.27 | 0.44 | 1.03 |
Claims (11)
- 평균입경 50 μm 내지 500 μm의 콜레스테릭 액정 입자를 포함하는 화장료 조성물.
- 제1항에 있어서, 상기 콜레스테릭 액정 입자는 수중유형 에멀전 또는 유중수형 에멀전의 분산상 또는 연속상 형태로 존재하는 것을 특징으로 하는 화장료 조성물.
- 제1항에 있어서, 상기 콜레스테릭 액정 입자의 분산도(α)는 0.35이하인 것을 특징으로 하는 화장료 조성물.
- 제1항에 있어서, 콜레스테릭 액정 입자의 함량은 조성물 전체 중량을 기준으로 0.1 내지 10중량%인 것을 특징으로 하는 화장료 조성물.
- 제2항에 있어서, 상기 에멀전은 수중유형 에멀전이고, 상기 수중유형 에멀전의 수상부는 조성물 전체 중량을 기준으로 보습제 10 내지 50중량%, 점증제 0.01 내지 1.0중량% 및 잔량의 정제수를 포함하는 것을 특징으로 하는 화장료 조성물.
- 제5항에 있어서, 상기 보습제는 글리세린, 부틸렌글라이콜, 프로필렌글리콜, 디프로필렌글리콜, 디글리세린, 펜틸렌글리콜, 이소프렌글리콜 및 에리스리톨로 이루어진 군에서 선택되는 단독 또는 2종 이상인 것을 특징으로 하는 화장료 조성물.
- 제5항에 있어서, 상기 점증제는 구아검, 잔탄검, 낫토검, 에틸셀룰로오스, 히드록시에틸셀룰로오스, 카르복시 메틸셀룰로오스, 소듐 폴리아크릴레이트, 글리세릴 폴리아크릴레이트, 및 히드록시프로필셀룰로오스로 이루어진 군에서 선택되는 단독 또는 2종 이상인 것을 특징으로 하는 화장료 조성물.
- 콜레스테릭 액정을 포함하는 액정부를 준비하는 단계; 및상기 액정부를 다공성 막으로 통과시킨 다음 연속상으로 분산하여, 액정부를 액정 입자 분산상으로 전환함으로써, 콜레스테릭 액정 입자를 포함하는 에멀전을 수득하는 단계를 포함하는 화장료 조성물의 제조방법.
- 제8항에 있어서, 상기 에멀전을 냉각하는 단계를 더 포함하는 것을 특징으로 하는 화장료 조성물의 제조방법.
- 제8항에 있어서, 상기 다공성 막은 다공성 알루미나, 다공성 지르코니아, 다공성 스테인리스 또는 다공성 글라스인 것을 특징으로 하는 화장료 조성물의 제조방법.
- 제8항에 있어서, 상기 다공성 막의 세공은 평균직경이 0.1 μm 내지 2 mm인 것을 특징으로 하는 화장료 조성물의 제조방법.
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CN201780098250.5A CN111683642B (zh) | 2017-12-06 | 2017-12-06 | 包含胆甾液晶颗粒的化妆料组合物及其制造方法 |
PCT/KR2017/014200 WO2019112082A1 (ko) | 2017-12-06 | 2017-12-06 | 콜레스테릭 액정 입자를 포함하는 화장료 조성물 및 그의 제조방법 |
US16/769,419 US20200297590A1 (en) | 2017-12-06 | 2017-12-06 | Cosmetic composition comprising cholesteric liquid crystal particle and method for preparing the same |
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PCT/KR2017/014200 WO2019112082A1 (ko) | 2017-12-06 | 2017-12-06 | 콜레스테릭 액정 입자를 포함하는 화장료 조성물 및 그의 제조방법 |
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Citations (5)
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JPH06242420A (ja) * | 1993-02-17 | 1994-09-02 | Hitachi Cable Ltd | 液晶フィルム用エマルジョンの製造方法および液晶セルの製造方法 |
JP2010090206A (ja) * | 2008-10-06 | 2010-04-22 | Chisso Corp | コレステリック液晶組成物 |
JP2010190946A (ja) * | 2009-02-16 | 2010-09-02 | Fuji Xerox Co Ltd | 液晶乳化物の製造方法 |
JP2015063478A (ja) * | 2013-09-24 | 2015-04-09 | 富士フイルム株式会社 | メイクアップ化粧料 |
KR20170138930A (ko) * | 2016-06-08 | 2017-12-18 | 주식회사 엘지생활건강 | 콜레스테릭 액정 입자를 포함하는 화장료 조성물 및 그의 제조방법 |
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FR2750599B1 (fr) * | 1996-07-02 | 1998-12-31 | Oreal | Nouvelles compositions cosmetiques comprenant des agents de coloration cristaux liquides et leur utilisation |
DE19824972A1 (de) * | 1998-06-04 | 1999-12-09 | Basf Ag | Verwendung von cholesterisch-flüssigkristallinen Zusammensetzungen als UV-Filter in kosmetischen und pharmazeutischen Zubereitungen |
US6730154B2 (en) * | 2000-04-13 | 2004-05-04 | Sakura Color Products Corporation | Polychromic ink composition depending on viewing angle |
ES2929030T3 (es) * | 2007-01-12 | 2022-11-24 | Oreal | Uso de ingredientes activos que permiten aumentar el contenido de ceramida de los labios, como agente de protección de los labios frágiles |
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2017
- 2017-12-06 US US16/769,419 patent/US20200297590A1/en not_active Abandoned
- 2017-12-06 CN CN201780098250.5A patent/CN111683642B/zh active Active
- 2017-12-06 WO PCT/KR2017/014200 patent/WO2019112082A1/ko active Application Filing
Patent Citations (5)
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JPH06242420A (ja) * | 1993-02-17 | 1994-09-02 | Hitachi Cable Ltd | 液晶フィルム用エマルジョンの製造方法および液晶セルの製造方法 |
JP2010090206A (ja) * | 2008-10-06 | 2010-04-22 | Chisso Corp | コレステリック液晶組成物 |
JP2010190946A (ja) * | 2009-02-16 | 2010-09-02 | Fuji Xerox Co Ltd | 液晶乳化物の製造方法 |
JP2015063478A (ja) * | 2013-09-24 | 2015-04-09 | 富士フイルム株式会社 | メイクアップ化粧料 |
KR20170138930A (ko) * | 2016-06-08 | 2017-12-18 | 주식회사 엘지생활건강 | 콜레스테릭 액정 입자를 포함하는 화장료 조성물 및 그의 제조방법 |
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CN111683642A (zh) | 2020-09-18 |
US20200297590A1 (en) | 2020-09-24 |
CN111683642B (zh) | 2023-07-18 |
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