WO2020022634A1 - Composition d'émulsion de cristaux liquides pour masque en tissu, son procédé de préparation, et masque en tissu la comprenant - Google Patents

Composition d'émulsion de cristaux liquides pour masque en tissu, son procédé de préparation, et masque en tissu la comprenant Download PDF

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WO2020022634A1
WO2020022634A1 PCT/KR2019/006367 KR2019006367W WO2020022634A1 WO 2020022634 A1 WO2020022634 A1 WO 2020022634A1 KR 2019006367 W KR2019006367 W KR 2019006367W WO 2020022634 A1 WO2020022634 A1 WO 2020022634A1
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liquid crystal
oil
mask pack
composition
mask
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PCT/KR2019/006367
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English (en)
Korean (ko)
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김성장
문명이
윤광희
황문의
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주식회사 리더스코스메틱
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Priority to CN201980033501.0A priority Critical patent/CN112153963B/zh
Publication of WO2020022634A1 publication Critical patent/WO2020022634A1/fr

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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
    • A61K8/02—Cosmetics or similar toiletry preparations characterised by special physical form
    • 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
    • A61K8/0212—Face masks
    • 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
    • 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
    • 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
    • A61K8/30—Cosmetics or similar toiletry preparations characterised by the composition containing organic compounds
    • A61K8/60—Sugars; 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
    • A61K8/18—Cosmetics or similar toiletry preparations characterised by the composition
    • A61K8/30—Cosmetics or similar toiletry preparations characterised by the composition containing organic compounds
    • A61K8/60—Sugars; Derivatives thereof
    • A61K8/602—Glycosides, e.g. rutin
    • 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
    • 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

Definitions

  • the present invention relates to a liquid crystal emulsifying composition for a mask pack, a method for manufacturing the same, and a mask pack containing the same, and more particularly, it is possible to stably encapsulate in a network structure of porous fibers, thereby improving skin benefits such as wrinkles and whitening in a mask pack.
  • the present invention relates to a liquid crystal emulsion composition for a mask pack containing a liquid crystal emulsion capable of stably supporting a, a preparation method thereof, and a mask pack containing the same.
  • the mask pack is a product type that many consumers are constantly looking for because of its excellent usability and easy moisturizing effect.
  • various types of mask packs such as fiber impregnated masks, hydrogel masks, and biocellulose masks have been developed, there are many fiber impregnated mask packs in which a lotion is impregnated into a fiber support due to skin adhesion and instant moisturizing of the skin surface. I'm getting attention.
  • Products such as a form in which the lotion is impregnated in the fiber support has been developed a mask pack applied to various types of fiber support, such as cotton fibers, natural long fibers, etc. in accordance with consumer demand.
  • the mask pack in the form of the fiber support has only a difference in the fiber type, and most of the fiber support is impregnated with a lotion so that there is a limit to the moisturizing effect of the immediate moisture supply form.
  • liquid crystal is a semi-crystalline phase showing the intermediate characteristics of the structural characteristics of the liquid and the regular structural characteristics of the solid, has a relatively less molecular mobility than the liquid due to the regular orientation between molecules. For this reason, it has unique characteristics such as scattering of light and showing physical properties of crystallinity.
  • liquid crystals may be formed by ceramides, cetyl alcohols, stearyl alcohols, cholesterol, nonionic surfactants, and the like, and may contribute to improved stability of skin useful substances.
  • liquid crystals if they contain highly oxidizable skin-soluble substances such as retinol, the ability to prevent the oxidation of the substances is poor, which makes it difficult to use them as products.
  • Liquid crystal emulsion is a liquid crystal embodying a lamellar structure similar to the intercellular lipids of the stratum corneum of the skin with an emulsification method.It is excellent in moisturizing power compared to general emulsions and can transfer skin active ingredients to the skin. It is applied to high functional basic cosmetic products.
  • Korean Patent Publication No. 10-2006-0018493 has provided a semi-transparent gel mask cosmetic composition using a liquid crystal emulsifying method
  • the recent patent is the Republic of Korea Patent Publication No. 10 -2017-0125211 discloses a hydrogel mask pack composition having excellent water retention.
  • these mask pack compositions were applied to the liquid crystal emulsions, which were previously applied to high-viscosity cosmetic compositions, such as creams, to the mask packs.
  • the inventors of the present invention have studied to solve such a problem, and have completed the present invention by developing a liquid crystal emulsion having a low viscosity that can be stably applied to a mask pack in the form of a network structure.
  • An object of the present invention is to provide a liquid crystal emulsifying composition for a mask pack having a skin moisturizing as well as wrinkle and whitening effect.
  • Still another object of the present invention is to provide a method of manufacturing the liquid crystal emulsion composition for the mask pack.
  • Still another object of the present invention is to provide a mask pack impregnated with the liquid crystal emulsion composition for the mask pack.
  • the present invention provides a liquid crystal emulsifying composition for a mask pack comprising a liquid crystal emulsifier, an aqueous phase component and an oil phase component containing a sucrose-based compound and a glycerin-based compound.
  • sucrose-based compound is sucrose myristate (sucrose myristate), sucrose laurate (sucrose laurate), sucrose palmitate, sucrose stearate (sucrose stearate) ), Sucrose distearate and sucrose dilaurate may be one or more selected from the group consisting of.
  • the glycerin-based compound may be glyceryl monooleate, glyceryl monostearate or a mixture thereof.
  • sucrose-based compound and glycerin-based compound may be mixed in a weight ratio of 8: 2 to 6: 4. Outside the above range, the liquid crystal emulsified particles may not be produced or long-term stability may be impaired.
  • the liquid crystal emulsifying composition for mask packs of this invention contains the said liquid crystal emulsifier 1-5 weight% based on the total weight of the whole composition.
  • the liquid crystal emulsifying composition for a mask pack of the present invention may include 50 to 90 wt% of an aqueous phase component and 5 to 40 wt% of an oil phase component based on the total weight of the entire composition.
  • Liquid crystalline emulsion composition for mask pack of the present invention is glyceryl stearate, ceramide-3, hydrogenated lecithin, polyglyceryl-3 methylglucose distearate distearate, polysorbate 60, cetearyl glucoside, cetearyl olivate, sorbitan olivate, PIG-100 stearate (PEG-100 stearate, PIG-60 hydrogenated castor oil, and sorbitan sesquioleate may further comprise one or more auxiliary emulsifiers.
  • the auxiliary emulsifier may be included in 0.1 to 1% by weight based on the total weight of the composition.
  • the liquid crystal emulsifying composition for mask packs of the present invention may also include madecassoside, allantoin, panthenol, betaine, retinol, retinyl palmitate, and retinyl.
  • the skin efficacy ingredient may be included in 0.01 to 10% by weight based on the total weight of the total composition.
  • the aqueous phase component may include water, polyhydric alcohol and water soluble gum.
  • the oil phase component may include oil, wax and higher alcohol.
  • the polyhydric alcohol is glycerin (glycerin), 1,3-butylene glycol (1,3-butylene glycol), dipropylene glycol (dipropylene glycol), 1,2-hexanediol (1, 2-hexanediol), propanediol (propanediol), methyl propanediol (methyl propanediol), diglycerin (diclycerin) and ethylene glycol (ethylene glycol) may be one or more selected from the group consisting of.
  • the water-soluble gum is xanthan gum, carboxymethyl cellulose, carboxyethyl cellulose, carboxyethyl cellulose, polyacrylate, sodium polyacrylate, carboxy Carboxyvinyl polymer, polyvinyl alcohol, polyacrylamide, polyethyleneoxide, polyethyleneimine and polyvinylpyrrolidone, hydroxyethyl acrylate Hydroxyethyl acrylate / sodium acryloyldimethyltaurate copolymer, acrylate / C10-30 alkylacrylate crosspolymer, and ammonium acryloyldimethyl taurate / Behenes-25 methacrylate crosspolymer (ammoniumacryloyl dimethyltaurate / beheneth- 25 methacrylate crosspolymer) may be one or more selected from the group consisting of.
  • the oil is ethylhexyl palmitate (isohexyl palmitate), isopropyl myristate (isopropyl myristate), ethyl laurate (ethyl laurate), ethyl myristate (isopropyl palmitate), Cyclopentane, cyclooctane, caprylic / capric triglyceride, butyleneglycol dicaprylate / dicaprate, triethylhexanoin ), Pentaerythrityl tetrathylhexanoate, cetylethylhexanoate, isopropyl myristate, octyldodecanol, mineral oil, mineral oil (vaseline), hydrogenated polydecene, squalene, squalane, jojoba oil, avocado oil, macadamia nut oil, palm oil, coconut oil, olive oil, ar
  • the wax is at least one selected from the group consisting of carnauba wax, candelilla wax, bees wax, lanolin and microstalin wax. Can be.
  • the higher alcohol is a group consisting of lauryl alcohol (lauryl alcohol), cetyl alcohol (cetyl alcohol), stearyl alcohol (stearyl alcohol), cetearyl alcohol (cetearyl alcohol) and behenyl alcohol (behenyl alcohol) It may be at least one selected from.
  • the liquid crystal emulsion composition for mask pack according to the present invention has a viscosity of 500 to 5,000 cps.
  • the liquid crystal emulsion composition for mask packs according to the present invention also has a diameter of 1 to 20 ⁇ m.
  • the present invention also provides a method for preparing a liquid crystal emulsion composition for a mask pack, comprising the following steps:
  • the present invention also provides a mask pack impregnated with the liquid crystal emulsion composition for the mask pack.
  • the mask pack is preferably a network structure intersected with a fiber having a diameter of 10 to 50 ⁇ m.
  • the mask pack may be a non-woven fabric or a woven fabric.
  • the liquid crystal emulsifying composition for a mask pack according to the present invention can be stably applied to a mask pack by containing a liquid crystal emulsion while exhibiting low viscosity physical properties. Therefore, in addition to the moisturizing effect can effectively support the skin effect ingredients for skin whitening and wrinkle improvement, not only excellent skin delivery power, but also the liquid crystal emulsified particles are stably encapsulated in the fiber network structure without any change in physical properties for a long time Can be maintained.
  • Figure 3 is an image of the liquid crystal emulsion composition prepared in one embodiment of the present invention observed with a 400x polarization microscope.
  • FIG. 4 is an image of a mask pack to which a liquid crystal emulsion composition prepared in one embodiment of the present invention is applied, under a 400x polarization microscope.
  • FIG. 5 is an image of a liquid crystal emulsifying composition observed before and after a month of harsh test in one embodiment of the present invention with a 400x polarization microscope.
  • the present invention relates to a liquid crystal emulsion composition for a mask pack containing a liquid crystal emulsion.
  • liquid crystal means a substance that is applied in the cosmetic industry to regulate the moisturizing and delivery system of the active substance.
  • the present invention is to enable the liquid crystal emulsion applied to the high-viscosity cosmetics, such as creams, to the mask pack, to provide a low viscosity liquid crystal emulsion composition that can be stably impregnated into the mask pack of the fiber support type.
  • the diameter of the appropriate fiber is selected to allow the liquid crystal emulsified particles to be enclosed in the empty margin between several finely intersected fiber strands, and a low viscosity type capable of producing a stable liquid crystal emulsion even at low viscosity.
  • the liquid crystal emulsion encapsulated in the network structure in the fiber can be kept stable even after preservation for 2 years or more, and when attached to human skin, the skin active ingredient contained in the liquid crystal emulsion is easily absorbed into the skin, thereby providing an excellent moisturizing effect. And skin improvement effect can be expected.
  • the liquid crystal emulsifying composition for a mask pack of the present invention includes an aqueous phase component, an oil phase component and a liquid crystal emulsifier, may further include an auxiliary emulsifier, and may further include a skin efficacy ingredient.
  • the liquid crystal emulsifying composition is 50 to 90% by weight of the water phase component, 5 to 40% by weight of the oil phase component, 1 to 5% by weight of the liquid crystal emulsifier, 0.1 to 1% by weight of the auxiliary emulsifier and 0.01 to 10% by weight of the skin efficacy component It is preferable to include.
  • a liquid crystal emulsifying composition having a low viscosity can be realized, and a liquid crystal emulsifying composition having a particle size that can be encapsulated in a fiber network structure can be prepared.
  • the liquid crystal emulsifier includes a sucrose-based compound and a glycerin-based compound.
  • the sucrose-based compound is sucrose myristate, sucrose laurate, sucrose palmitate, sucrose stearate, sucrose It is preferably at least one member selected from the group consisting of sucrose distearate and sucrose dilaurate, and in order to achieve the object of the present invention, the sucrose-based compound may be sucrose in advance. State is most preferred.
  • the glycerin-based compound is preferably glyceryl monooleate, glyceryl monostearate or a mixture thereof, most preferably glyceryl monooleate.
  • sucrose-based compounds and glycerin-based compounds are preferably mixed and used in a weight ratio of 8: 2 to 6: 4.
  • the liquid crystal emulsifier is preferably included 1 to 5% by weight based on the total weight of the total composition. If it is out of the range there is a problem that the formation of liquid crystal particles in the composition is not good. In one embodiment of the present invention, it was confirmed that the liquid crystal particles are not well formed when the liquid crystal emulsifier is used in less than 1% by weight or more than 5% by weight.
  • the aqueous phase component may include water, polyhydric alcohol and water soluble gum. It is preferable to use purified water for the said water.
  • the polyhydric alcohol is glycerin (glycerin), 1,3-butylene glycol (1,3-butylene glycol), dipropylene glycol (dipropylene glycol), 1,2-hexanediol (1,2-hexanediol), At least one selected from the group consisting of propanediol, methyl propanediol, diglycerin and ethylene glycol is preferred.
  • the polyhydric alcohol is preferably included 0.1 to 30% by weight based on the total weight of the composition.
  • the strength of the liquid crystal particles may be lowered and the stickiness to the skin may be excessively increased.
  • the water-soluble gum is xanthan gum, carboxymethyl cellulose, carboxyethyl cellulose, polyacrylate, sodium polyacrylate, carboxyvinyl polymer ), Polyvinyl alcohol, polyacrylamide, polyethyleneoxide, polyethyleneimine and polyvinyl pyrrolidone, hydroxyethyl acrylate / sodium acryloyl Dimethylethyl acrylate / sodium acryloyldimethyltaurate copolymer, acrylate / C10-30 alkylacrylate crosspolymer, and ammonium acryloyldimethyltaurate / behenes-25 meta Ammonumacryloyl dimethyltaurate / beheneth-25 methacrylate crosspoly mer) may be one or more selected from the group consisting of.
  • the water-soluble gums can make the liquid crystal particles form a thin film, thereby making it possible to maintain excellent moisture adhesion and effective moisture when applied to the skin.
  • the water-soluble gum is preferably added at 0.01 to 5% by weight based on the total weight of the total composition. If the water-soluble gum is added in an excessive amount, it is difficult to maintain the shape of the liquid crystal particles and there is a problem of inferior elasticity.
  • the oil phase component may include oil, wax and higher alcohol.
  • the oil may be an ester oil, a hydrocarbon oil, a silicone oil, a natural oil, and the like, for example, ethylhexyl palmitate, isopropyl myristate, ethyl laurate ), Ethyl myristate, isopropyl palmitate, cyclopentane, cyclooctane, caprylic / capric triglyceride, butylene glycol Butyleneglycol dicaprylate / dicaprate, triethylhexanoin, pentaerythrityl tetrathylhexanoate, cetyl ethylhexanoate, isopropyl myristate myristate, octyldodecanol, mineral oil, petrolatum, vaseline, hydrogenated polydecene (hydrogenated polydecene), squalene, squalane, jojoba oil, avocado oil, maca
  • the oil may be included in an amount of 0.5 to 30% by weight based on the total weight of the composition.
  • the wax is preferably one or more selected from the group consisting of carnauba wax, candelilla wax, bees wax, lanolin and microstalin wax.
  • the wax is preferably contained 0.5 to 5% by weight based on the total weight of the composition.
  • the higher alcohol is a group consisting of lauryl alcohol (lauryl alcohol), cetyl alcohol (cetyl alcohol), stearyl alcohol (stearyl alcohol), cetearyl alcohol (cetearyl alcohol) and behenyl alcohol (behenyl alcohol) At least one selected from is preferred.
  • the higher alcohol is preferably contained 0.5 to 5% by weight based on the total weight of the composition.
  • the co-emulsifier is glyceryl stearate, ceramide-3 (ceramide-3), hydrogenated lecithin, polyglyceryl-3 methylglucose distearate ), Polysorbate 60, cetearyl glucoside, cetearyl olibate, sorbitan olivate, pid-100 stearate (PEG-100 stearate) ), PIG-60 hydrogenated castor oil (PEG-60 hydrogenated castor oil) and at least one selected from the group consisting of sorbitan sesquioleate (sorbitan sesquioleate) is preferred.
  • the auxiliary emulsifier may be included in 0.1 to 1% by weight based on the total weight of the composition.
  • the liquid crystal emulsifying composition for mask packs of the present invention may also include madecassoside, allantoin, panthenol, betaine, retinol, retinyl palmitate, and retinyl.
  • the skin efficacy ingredient may be included in an amount of 0.01 to 10% by weight based on the total weight of the total composition.
  • liquid crystal emulsion composition for a mask pack according to the present invention may be prepared according to the following process.
  • an aqueous phase component comprising water (purified water), a polyhydric alcohol and a water soluble gum is mixed and heated to about 75 to 80 ° C. to dissolve the component. At this time, if the temperature is less than 70 °C component not added to the water is not completely dissolved, if it is above 85 °C may be the stability of some additives or natural components.
  • an oil phase component including oil, wax and higher alcohol, a liquid crystal emulsifier and an auxiliary emulsifier are mixed and then heated to about 75 to 80 ° C. to dissolve the component.
  • the dissolved aqueous component and the oily component are mixed, stirred and sufficiently mixed, cooled to about 35 to 45 ° C, and then the skin potency component is added and stirred for an additional 3 to 5 minutes. At this time, it is preferable to lower the temperature after the aqueous component and the oil phase component are sufficiently mixed.
  • the stirring may be performed while the temperature is further lowered to 25 to 30 ° C. while stirring to prepare a liquid crystal emulsion composition according to the present invention.
  • the prepared liquid crystal emulsion composition has a viscosity of 500 to 5,000 cps, more specifically, a viscosity of 1,000 to 3,000 cps. Within this range, the liquid crystal emulsion composition may be stably encapsulated in a mask pack that is a fiber network structure.
  • the prepared liquid crystal emulsion composition has an average diameter of 1 to 20 ⁇ m. Liquid crystal particles having an average diameter in the above range can be stably encapsulated in the fiber network structure of the present invention described later.
  • FIG. 1 is an image of a hydrogel type liquid crystal emulsion of the prior art. It can be seen that it is difficult to impregnate the maskpack by presenting a flowable solid gel formulation.
  • FIG. 2 is an image of a liquid crystal emulsion composition according to the present invention applied to a hand. It can be seen that the composition is low enough to easily flow down from the hand.
  • the present invention can also produce a mask pack in which a liquid crystal emulsion is sealed by impregnating a fibrous network structure into the prepared liquid crystal emulsion composition.
  • the mask pack is preferably a network structure in which fibers having a diameter of 10 to 50 ⁇ m are crossed.
  • the mask pack may be a non-woven fabric or a woven fabric.
  • liquid crystal particles having an average diameter of 1 to 20 ⁇ m may be stably encapsulated.
  • liquid crystal emulsion mask pack of the present invention can maintain stability for a long time even in harsh conditions.
  • the water component of Table 1 was mixed in a main mixer tank and heated to 78 ° C. to dissolve the component.
  • the oil phase component was heated in a separate oil phase tank and also heated to 78 ° C. to dissolve the component.
  • the dissolved oily raw material was added to the main mixer tank and stirred for 10 minutes using a homo mixer.
  • the mixture was cooled to 40 ° C., and the skin efficacy ingredient was added thereto and mixed for 5 minutes.
  • the mixture was cooled and stirred at 28 ° C. while using a mixer.
  • the results of polarization microscopy observations were evaluated by dividing the particles into clarity and uniformity, and are shown in Table 2 below on a five-point scale.
  • the clarity of the particle means that the liquid crystal is formed with the 5th point clearly by judging the degree of the light scattering in the polarization microscope, and it is clearly visible.
  • Example 1 Example 2 Comparative Example 1 Comparative Example 2 Particle sharpness 5 4 2 1.5 Particle Uniformity 5 4 One One
  • the liquid crystal emulsified composition of the embodiment of the present invention although the particles were formed clearly and uniformly, in the case of the composition of the comparative example in which a small or excessive amount of the liquid crystal emulsifier was added, the particles did not appear clearly and did not form uniformly. You can check it.
  • the liquid crystal emulsion composition prepared in Preparation Example 1 was introduced into a mask pack-shaped porous network fiber structure inserted into a pouch to impregnate naturally to prepare a liquid crystal emulsion mask pack.
  • Part of the mask pack fiber structure was sampled and observed using a 400 magnification polarizing microscope to determine whether liquid crystal emulsified particles were enclosed in the porous holes of the fine mesh structure of the mask pack fiber structure. The observation results are shown in FIG. 2 and Table 3.
  • Example 1 Example 2 Comparative Example 1 Comparative Example 2 Particle sharpness 5 4.5 One One Particle Uniformity 5 4.5 1.5 1.5
  • the mask pack according to an embodiment of the present invention can be confirmed that the liquid crystal emulsion particles are well enclosed between the fiber structure, the mask pack impregnated with the liquid crystal emulsion composition of the comparative example is a liquid crystal between the fiber structure It was confirmed that the emulsified particles were little or not uniform.
  • liquid crystal emulsifiers of the present invention were compared with those of the prior art liquid crystal emulsifiers, cetearyl alcohol and cetearyl glucoside.
  • a liquid crystal emulsifying composition was prepared in the same composition as in Example 1, but the type of liquid crystal emulsifier was changed to cetearyl alcohol and cetearyl glucoside, and the same content as in Example 1 was added (Comparative Example 3) and The case where the content obtained with the same viscosity as Example 1 was added (comparative example 4) was each tested.
  • Example 1 In order to test the stability of the liquid crystal emulsified composition, the composition of Example 1 and Comparative Example 4 was subjected to a test for one month under harsh conditions of 5 ° C., 40 ° C. and 45 ° C. with 25 ° C. as a standard. It is shown in Table 5 below.
  • Example 1 (initial: 2,500 cps) 2,230 cps 2,510 cps 2,500 cps 2,600 cps Comparative Example 4 (Initial: 2,500 cps) 2,300 cps 2,200 cps 1,200 cps 1,000cps
  • Example 1 maintained a viscosity in the range of 2,200 ⁇ 2,600cps even if maintained for one month in harsh conditions.
  • Comparative Example 4 was not able to maintain the viscosity of the early 2,500cps, the viscosity was unstable, and it was confirmed that the stability was very poor because the viscosity dropped to less than half at 40 and 45 ° C harsh conditions.
  • liquid crystal emulsified particles before and after the one month harsh test of the compositions of Example 1 and Comparative Example 4 were photographed with a 400x polarization microscope and shown in FIG. 3.
  • particle sharpness and uniformity are shown in Table 6 below on a five-point scale.
  • Example 1 As a result of a severe test for one month, the composition of Example 1 was stable without singularity, while the emulsion of Comparative Example 4 was lowered in viscosity properties and at the same time deteriorated in particle clarity and uniformity due to instability of liquid crystal emulsified particles, and was enclosed in a network structure. It is found that it is outside the range of particle sizes that are likely to be.
  • the shelf life of cosmetics is generally about 2 to 3 years, it is determined that the liquid crystal emulsifying mask pack of the present invention can maintain the initial physical properties well within the shelf life of the mask pack of the prior art.
  • the liquid crystal emulsifying composition for mask packs according to the present invention contains liquid crystal emulsions and exhibits low viscosity physical properties so that they can be stably applied to mask packs. It can be kept in a stable state without changing its physical properties for a long time, so it is highly industrially applicable.

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Abstract

La présente invention concerne une composition de cristaux liquides pour un masque en tissu, son procédé de fabricationi, et un masque en tissu la comprenant. Une composition d'émulsion de cristaux liquides pour un masque en tissu, selon la présente invention, présente comme propriété physique une faible viscosité, même en contenant une émulsion de cristaux liquides, et peut ainsi être appliquée de manière stable sur un masque en tissu. Par conséquent, les ingrédients destinés à être efficace sur la peau, servant au blanchiment de la peau et à la diminution des rides, en plus des effets hydratants, peuvent fonctionner de manière efficace, la capacité d'administration à la peau est excellente, et les particules de l'émulsion de cristaux liquides sont incorporées de manière stable dans une structure de réseau de fibres de façon à être maintenues de façon stable sans changement de propriétés physiques pendant une longue période.
PCT/KR2019/006367 2018-07-24 2019-05-28 Composition d'émulsion de cristaux liquides pour masque en tissu, son procédé de préparation, et masque en tissu la comprenant WO2020022634A1 (fr)

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