JP2017190291A - Water-oil double-layered cosmetic product having all-in-one function - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a water-oil double-layered cosmetic product in which the usage amount of a preparation containing a large amount of an aqueous component and the usage amount of a preparation containing a large amount of an oily component can be freely adjusted.SOLUTION: According to the present invention, there is provided a water-oil double-layered cosmetic product having all-in-one function. The product comprises a preparation A in which an aqueous solution is gelled and a preparation B in which an oil content is emulsified. The preparation A has a viscosity of 3000-20000 mPas at 60 rpm and a thixotropy of 5 or higher at 6/60 rpm. The preparation B has a viscosity of 2000-15000 mPas or higher at 60 rpm and a thixotropy of 3 or higher at 6/60 rpm. Either one of the preparations A and B is embedded in the other and retained therein in suspension.SELECTED DRAWING: Figure 1

Description

  The present invention relates to a basic cosmetic mainly intended for moisturizing or replenishing oil among cosmetics applied to the skin of a human face.

  Basic cosmetics with various functionalities such as creams and emulsions, lotions, beauty lotions, beauty gels, beauty oils, cleansing gels, cleansing creams, cleansing emulsions, cleansing oils, packs and facial cleansing foams are on the market. The basic ingredients of these basic cosmetics can be classified into oily components that are highly compatible with oil, aqueous components that are highly compatible with water, and moisturizers that exhibit intermediate properties between aqueous and oily components. it can.

  The shape of basic cosmetics is subdivided, and various types of basic cosmetics are commercially available. Each of the subdivided basic cosmetics is specialized in function and excellent in the functionality of each preparation, while the user needs to use various types of basic cosmetics in order according to the situation. In many cases, it imposes a time or economic burden on the person.

  Under such circumstances, cosmetic products having a plurality of basic cosmetic functions are also commercially available. For example, products that have the functionality of a cream containing oily ingredients, the functionality of a beauty essence rich in moisturizing ingredients and active ingredients, and the functionality of lotion containing water-soluble ingredients, and contain the ingredients in the skin A product having both a pack function and a cream function is sold (see, for example, Patent Document 1).

JP 2006-282588 A

  However, as described in Patent Document 1, in the structure in which the upper layer and the lower layer are separated, the upper layer preparation is mixed when the lower layer preparation is skimmed, and the two types of preparations can be freely adjusted. It was difficult to scoop.

  An object of the present invention is to provide a cosmetic that can be used by freely adjusting the amount of a preparation that contains a large amount of an aqueous component in one cosmetic and a preparation that contains a large amount of an oil component. .

A water-oil two-layer cosmetic characterized by the all-in-one function of the present invention is a formulation A obtained by gelling an aqueous solution,
Having a formulation B emulsified with oil in the container,
The formulation A has a viscosity at 60 rpm of 3000 to 20000 mPa · s and a thixotropy at 6/60 rpm of 5 or more.
The formulation B has a viscosity at 60 rpm of 2000 to 15000 mPa · s or more and a thixotropy at 6/60 rpm of 3 or more.
One of the preparations A and B is included in a state of floating in the other,
The viscosity at 6 rpm of the encapsulated preparation encapsulated and the encapsulated preparation enclosing the encapsulated preparation is characterized by the relationship of encapsulated preparation <encapsulated preparation.

  The water-oil two-layer cosmetics characterized by the all-in-one function of the present invention can be used by freely adjusting the use amount of a preparation containing a large amount of an aqueous component and a preparation containing a large amount of an oil component in one cosmetic. Can be made cosmetics.

As listed above, the product of the present invention can provide cosmetics having various functions not found in existing products.

(A)-(d) is a schematic explanatory drawing which shows the various forms of the cosmetics of this invention. 2 is a photograph of a two-layer gel cream in Example 1.

  The present invention will be described below. The terms used in this specification should be used in the meaning commonly used in the art unless otherwise specified. Thus, unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. In case of conflict, the present specification, including definitions, will control.

  As shown in FIG. 1, the all-in-one cosmetic 1 of the present invention is present in a state where the preparation A and the preparation B are separated in a transparent or translucent container 2.

  The preparation A is a gel obtained by gelling an aqueous solution, is transparent or translucent, and occupies the inside and outside of the container 2 along the container. Formulation B is an opaque emulsified cream in which oil is emulsified, and is present in a substantially oval (elliptical sphere) or approximately spherical shape so that it floats from formulation A in container 2.

  For this reason, when the container 2 is viewed from the upper side, it can be seen that the preparation B exists in the central portion and the preparation A exists in the outer peripheral portion. For this reason, when using the preparation B, only the preparation B can be freely taken out by scooping up the preparation B in a state where the user removes the upper part of the central portion from the preparation B by moving the center portion upward. Further, when using the preparation A, the user can pick up only the preparation A by directly scooping up the peripheral portion.

  By the way, the all-in-one cosmetic 1 can be used by mixing the preparation A and the preparation B in addition to selectively using the preparation A and the preparation B according to the user's preference and situation. In other words, the preparation A and the preparation B are very familiar, and are easily mixed by the user mixing on the palm.

  The inventor of the present application has found that even two such preparations can be stably maintained in a separated state by appropriately maintaining viscosity and thixotropy.

  It is preferable that the formulation A has a viscosity of 3000 to 20000 mPa · s at 60 rpm (25 ° C., E-type viscometer) and a thixotropy at 6/60 rpm of 5 or more. It is preferable that the formulation B has a viscosity at 60 rpm of 2000 to 15000 mPa · s or more and a thixotropy at 6/60 rpm of 3 or more. If the viscosity is too high, it is not preferable because it becomes too hard and the feeling of use becomes worse, and if the viscosity is too low, the stability in the separated state is deteriorated.

  Moreover, the viscosity (6 rpm, 25 degreeC) of the inclusion formulation included in the preparation A and the formulation B is set smaller than the viscosity (6 rpm, 25 degreeC) of the inclusion formulation in the envelope composition. As a result, when the encapsulated preparation is injected into the encapsulated preparation, the encapsulated preparation is rounded and solidified by the large viscosity of the encapsulated preparation, and a beautiful appearance of a sphere or an oval sphere can be created.

  The shape of the container 2 and the filling amount of the preparation can be arbitrarily changed. For example, the preparation B may have an elliptical shape that is long in the vertical direction.

  The preparation B can be usually produced by inserting a nozzle into the preparation A previously filled and filling it. Depending on the combination of Formulation A and Formulation B, when pulling out the nozzle after filling Formulation B, a protrusion may be formed on the upper surface of the formulation B that forms the protruding surface, but this does not impair the aesthetics of the product. Also, it does not affect the completion of the invention.

  The present invention can provide a novel basic cosmetic having the functionality of two kinds of preparations A and B in one product by filling the preparation having two kinds of functions in two stages. In addition, the present invention allows the preparation B having a curved surface to be visually recognized from the outside through the container 2 and the preparation A by using the preparation A such as a highly transparent aqueous gel on the outer side portion, and hence aesthetics. In addition, it is possible to provide a new basic cosmetic product that is excellent.

  As a combination of the two types of preparations, any combination may be used as long as the preparations are viscous, creamy, or semisolid viscous preparations.

  For example, a combination of two types of preparations, an “aqueous gel” that replenishes the skin mainly with moisture and a moisturizing component, and a “cream” that replenishes the skin mainly with an oily component and a moisturizing component. Combination of 2 types of “Oil Gel” for replenishing skin with moisturizing ingredients, “Aqueous Gel Cleaner” and “Oil Gel Cleaner” with aqueous cleaning ingredients, “Aqueous Gel Cleaner” ”And“ cleansing cream ”,“ water-based gel ”and“ cleansing cream ”,“ water-based gel ”and“ cleansing cream ”,“ water-based gel ”and“ wash-out pack formulation ”,“ water-based ” Various combinations of preparations are provided by the present invention, such as a combination of “cleansing gel” and “facial cleansing foam”, and a combination of “aqueous gel” and “facial cleansing foam”. Door can be.

Particularly preferred combinations of the two types of preparations are as follows.
Outer layer “aqueous gel” and inner “cream”, outer layer “beauty gel” and inner “cream”, outer layer “aqueous cleansing gel” and inner “cleansing cream”, outer layer “aqueous cleansing gel” and inner “oil-based cleansing gel”.

  The specific gravity of each preparation varies depending on the use and formulation of each preparation, but the specific gravity of preparation A is preferably 0.8 to 1.3, more preferably 0.9 to 1.2. Further, the specific gravity of the preparation B is preferably 0.7 to 1.2, more preferably 0.8 to 1.1.

  The cosmetic of the present invention is completed by first filling the container with the outer layer preparation and filling the other preparation into the outer layer preparation, but the filling method is not limited. The cosmetics of the present invention can be obtained by filling each formulation as it is or while applying rotation, using a filling machine or a syringe used in a normal cosmetic manufacturing process.

  In the present invention, the blending ratio of the filling amount of the preparation initially filled in the container and the blending amount of the preparation filled in the second stage is not particularly limited. It should be determined by the functionality of the type of formulation selected and the final combination of the cosmetic product of the present invention.

  Considering from the viewpoint of the appearance of the present invention, the filling amount of the internal preparation B filled in the second stage is preferably 10% to 60% and more preferably 20 to 40% of the whole preparation. . When the filling amount of the preparation B is less than 10% of the whole preparation, the function of the preparation B may not be exhibited, and when it exceeds 60%, the function of the preparation A may not be exhibited and the appearance is impaired. There is.

The preparation to be filled in the second stage needs to be filled inside the initially filled preparation, but the filling place in the preparation is not particularly limited.

  Normally, it is desirable to fill near the center of the initially filled preparation, but depending on the hardness, shape, functionality, and blending ratio of the preparation, it should be filled at the upper or lower part of the center of the initially filled preparation. Also good. By filling the upper part, the preparation can hardly be attached to the bottom of the container and can be filled in a more spherical shape, and the upper part of the preparation is often raised.

  The shape and material of the container used for filling the cosmetic of the present invention are not limited as long as the internal preparation can be seen from the outside. By seeing the inside, it is possible to make the user visually recognize the shape of the round and cute preparation B, and to stimulate the user's aesthetic sense.

(Definition of terms)
The term “spherical” used in the present specification is not limited to a true spherical shape, but a slightly distorted spherical shape (for example, an egg shape), an oblate spherical shape (for example, an elliptical cross section), or a slight surface. Including spherical shapes with various protrusions. Similarly, the term “hemisphere” used in this specification is not limited to a hemisphere, but includes a hemisphere having a slight distortion, a hemisphere having a slight protrusion on the surface, and the like. .

  As used herein, the term “emulsification” refers to a liquid, semi-solid, or homogeneous mixture of solids that are incompatible with each other, such as aqueous and oily components.

  As used herein, the term “emulsifying composition” refers to a homogeneous mixture of liquid, semisolid or solid that does not dissolve in each other, such as oily and aqueous components.

  As used herein, the term “aqueous component” refers to a component that can be dissolved and / or diluted with water.

  As used herein, the term “oil component” refers to a substance that is liquid or solid at room temperature, is insoluble in water, is viscous, has a specific gravity less than water, and burns.

  In the outer layer part and inner preparation of the present invention, any water-soluble substance, any substance that can be dispersed in a gel, or a solid substance can be dispersed. Examples of ingredients that can be blended in the preparation include oils and fats, waxes, hydrocarbons, silicones, fatty acids, alcohols, esters, surfactants, thickeners, powders and other cosmetic bases, pharmaceuticals, And active ingredients of quasi-drugs, pH adjusters, preservatives, dyes, fragrances, antioxidants and naturally derived extracts.

  The color tone of the two types of preparations constituting the present invention is not limited. It may be a white turbid, white, transparent, colored gel, or an emulsified composition, but for aesthetic reasons, the preparation present on the outer side is preferably a colored or non-colored transparent or translucent, water-soluble gel This is especially true.

Examples of the “oil component” used in the present invention include, but are not limited to, a substance selected from the group consisting of:
Avocado oil, almond oil, olive oil, camellia oil, sesame oil, rice bran oil, safflower oil, soybean oil, corn oil, rapeseed oil, kyounin oil, persic oil, peach seed oil, castor oil, sunflower oil, grape seed oil, cottonseed oil, coconut oil , Wheat germ oil, rice germ oil, evening primrose oil, hybrid sunflower oil, macadamia nut oil, meadow foam oil, hazelnut oil, palm kernel oil, palm oil, palm oil, cocoa butter, shea butter, wax, mink oil, Oils and fats such as turtle oil, egg yolk oil, beef tallow, milk fat, pork fat, field oil; or waxes such as jojoba oil, carnauba wax, candela wax, rice bran, orange raffi oil, beeswax, shellac, lanolin, montan wax ; Or squalene, squalane, liquid paraffin, paraffin, microcrystalline wax, sesame , Hydrocarbons such as soft liquid isoparaffin, hydrogenated polyisobutylene, ozokerite, ceresin, α-oleinphine oligomer, polybutene, polyethylene; or lauric acid, myristic acid, palmitic acid, stearic acid, behenic acid, hydroxystearic acid, Higher fatty acids such as oleic acid, linoleic acid, ethylhexanoic acid, isostearic acid, isopalmitic acid, isotridecanoic acid, isononanoic acid, pentadecanoic acid; or lauryl alcohol, stearyl alcohol, cetearyl alcohol, behenyl alcohol, cetanol, oleyl alcohol, Lanolin alcohol, cholesterol, isocholesterol, sitosterol, stigmasterol, isostearyl alcohol, octyldodecanol, hexyldecanol, etc. Higher alcohols; or isopropyl myristate, isopropyl palmitate, butyl stearate, ethyl oleate, cetyl palmitate, myristyl myristate, octyldodecyl myristate, octyldodecyl oleate, cholesteryl stearate, cholesteryl hydroxystearate, tricaprin , Trimyristin, glyceryl tri-2-ethylhexanoate (trioctanoin), isopropyl isostearate, isopropyl isostearate, ethyl isostearate, cetyl ethylhexanoate, stearyl ethylhexanoate, glyceryl triethylhexanoate, glyceryl triethylhexanoate, triethyl Trimethylolpropane hexanoate, pentaerythryl tetraethylhexanoate, triisostearyl Glyceryl acid, trimethylolpropane triisostearate, pentaerythryl tetraisostearate, pentaerythryl triisostearate, isocetyl isostearate, octyldodecyl dimethyloctanoate, myristyl lactate, cetyl lactate, trioctyl dodecyl citrate, diisosuccinate Esters such as stearyl; and mixtures containing two or more of these.

  “Moisturizing ingredient” may be blended in the cosmetic of the present invention. Examples of such “moisturizing ingredient” include, but are not limited to, substances selected from the group consisting of the following.

  Glycerin, 1,3-butylene glycol, propylene glycol, 3-methyl-1,3-butanediol, 1,3-propanediol, 2-methyl-1,3-propanediol, trimethylolpropane, pentaerythritol, hexylene Glycol, diglycerin, polyglycerin, diethylene glycol, polyethylene glycol, dipropylene glycol, polypropylene glycol, ethylene glycol, diethylene glycol monoethyl ether (ethoxydiglycol), ethylene glycol monoethyl ether, ethylene glycol monobutyl ether, diethylene glycol dibutyl ether, sorbitol, Xylitol, erythritol, mannitol, maltitol, glucose, fructose, galactose Mannose, threose, xylose, arabinose, fucose, ribose, deoxyribose, maltose, trehalose, lactose, raffinose, gluconic acid, glucuronic acid, cyclodextrin, β-glucan, chitin, chitosan, heparin and its derivatives, pectin, arabinogalactan , Dextrin, dextran, glycogen, ethyl glucoside, glucosyl ethyl methacrylate polymer, hyaluronic acid, sodium hyaluronate, mucoitin sulfate, caronine sulfate, keratosulfate, dermatan sulfate, white jellyfish extract, white jellyfish polysaccharide, tuberose polysaccharide, citric acid , Tartaric acid, urea, 2-pyrrolidone-5-carboxylic acid and its sodium salt, betaine (trimethylglycine), proline, hydroxyproline Arginine, lysine, serine, glycine, alanine, phenylalanine, tyrosine, β-alanine, threonine, glutamic acid, glutamine, asparagine, aspartic acid, cysteine, cystine, methionine, leucine, isoleucine, valine, tryptophan, histidine, taurine, collagen, Atelocollagen, gelatin, elastin, collagen degrading peptide, hydrolyzed collagen, hydroxypropylammonium chloride hydrolyzed collagen, elastin degrading peptide, keratin degrading peptide, hydrolyzed keratin, conchiolin degrading peptide, hydrolyzed conchiolin, silk proteolytic peptide, hydrolyzed silk , Lauroyl hydrolyzed silk sodium, soy proteolytic peptide, wheat proteolytic peptide, hydrolyzed wheat protein, Protein peptides such as in-degraded peptides and acylated peptides and derivatives thereof: palmitoyl oligopeptide, palmitoyl pentapeptide, palmitoyl tetrapeptide, lactic acid bacteria culture solution, yeast extract, eggshell membrane protein, bovine submandibular gland mucin, hypotaurine, sesame lignan Glycoside, glutathione, albumin, whey; choline chloride, phosphorylcholine; placenta extract, aerostin, collagen, aloe extract, hamamelis water, loofah water, chamomile extract, daylily extract, comfrey extract, silk extract, izayoi rose extract Yarrow Extract, Eucalyptus Extract, Merirot Extract, Natural Ceramide (Type 1, 2, 3, 4, 5, 6), Hydroxyceramide, Glycosphingolipid.

(Example 1: Preparation of two-layer gel cream)
Two layers containing "cream" excellent in the effect of replenishing the skin with oily and moisturizing ingredients in the "aqueous gel" excellent in the effect of replenishing the skin with moisture and moisturizing ingredients by the following formulation and manufacturing method A gel cream was prepared.
(Formulation 1: Preparation of outer layer part / bilayer gel cream)
(A) Carboxyvinyl polymer: 0.4 (% by weight)
(B) Potassium hydroxide: 0.12 (% by weight)
(A) Glycerin: 15 (% by weight)
(A) 1,3-butylene glycol: 15 (% by weight)
(A) Gardenia extract: 0.05 (% by weight)
(A) Methyl paraoxybenzoate: 0.15 (% by weight)
(A) Purified water: the remaining amount is added so that the total amount becomes 100 (wt%) (preparation method)
The component (A) was dissolved by heating with stirring, and then the component (B) dissolved in 10% using purified water was added. Then, the yellow transparent gel was obtained by cooling to room temperature, stirring.
(Formulation 2: Preparation of inner layer part / double-layer gel cream)
(A) Glyceryl tri-2-ethylhexanoate: 11 (wt%)
(A) Cetyl 2-ethylhexanoate: 5 (% by weight)
(A) Methyl polysiloxane: 0.5 (% by weight)
(A) Behenyl alcohol: 2 (% by weight)
(A) Lipophilic glyceryl monostearate: 2.5 (% by weight)
(A) Methyl paraoxybenzoate: 0.2 (% by weight)
(A) Natural vitamin E: 0.1 (% by weight)
(A) Hydrogenated soybean phospholipid: 0.3 (% by weight)
(B) Carboxyvinyl polymer: 0.5 (% by weight)
(C) Potassium hydroxide: 0.18 (% by weight)
(B) Xanthan gum: 10 (% by weight)
(B) Trehalose: 0.2 (% by weight)
(B) Concentrated glycerin: 0.1 (% by weight)
(B) 1,3-butylene glycol: 5 (% by weight)
(B) Maltitol hydroxyalkyl (12,14) ether solution: 0.3 (% by weight)
(B) Ethanol: 0.04 (% by weight)
(B) N-stearoyl-L-glutamate sodium: 0.5 (% by weight)
(D) Fragrance: 0.04 (wt%)
(B) Purified water: The remaining amount was added so that the total amount was 100 (% by weight).
(Preparation method)
Component (A) and component (B) were heated separately and mixed at 80 ° C., then component (C) dissolved in 10% was added using purified water, and the mixture was stirred using a homomixer. Cooling was started, the component (D) was added at 40 ° C., and the mixture was further stirred to cool to room temperature, thereby obtaining a white cream-like emulsion composition.
(Measurement of physical properties)
After preparing the gel preparation of formulation 1 (outer layer part / bilayer gel cream) and the cream preparation of formula 2 (inner layer part / bilayer gel cream) by the above method, 100 g each was taken in a 100 ml beaker for 24 hours at room temperature. Then, the viscosity of each preparation was measured using an E-type viscometer.

Gel preparation of prescription 1: Viscosity of 10500 mPa · s (6 rpm, 25 ° C.)
: Viscosity 2350 mPa · s (60 rpm, 25 ° C.)
: Thixotropic 4.45
Cream preparation of prescription 2: Viscosity 8500 mPa · s (6 rpm, 25 ° C.)
: Viscosity 2050 mPa · s (60 rpm, 25 ° C.)
: Thixotropic 4.15
(Method of filling double-layer gel cream)
A 100 ml beaker was filled with 20 g of the gel of Formula 1 with a syringe. Next, a two-layer gel cream shown in the photograph of FIG. 2 was obtained by pushing the tip of the syringe into the two-thirds of the total amount from the bottom of the filled gel and filling 10 g of the emulsion composition of Formula 2.
(Functionality of double-layer gel cream)
A use test was conducted using the two-layer gel cream prepared in Example 1, and the functionality of the preparation was confirmed.

In the use test, the user was instructed to take an appropriate amount of the preparation using a spatula and use it on the skin. After use, we asked about its feel and functionality in an interview format. The functionalities of the preparations that can be confirmed from the test, formulation components, and preparation methods are listed below.
(Functionality 1)
The double-layer gel cream of Example 1 has the functionality of a cream that is rich in oily ingredients and a cosmetic gel that is rich in aqueous ingredients and moisturizing ingredients such as glycerin and 1,3-butylene glycol in one formulation. It is a preparation having both. When this preparation was removed with a spatula so as to include the outer layer portion and the inner preparation, it was applied to the skin. At the same time, it was confirmed that a high water retention effect, emollient effect and moisturizing effect on the skin could be realized.
(Functionality 2)
The two-layer gel cream of Example 1 is composed of a cosmetic gel portion containing a large amount of an aqueous component and a cream portion containing a large amount of an oily component. As described above, in the two-layer gel cream, the oily component and the aqueous component are separated in one preparation. Thereby, the selectivity of the component which can be mix | blended increases.
(Functionality 3)
In the two-layer gel cream of Example 1, two types of preparations are divided by the gel preparation of the outer layer portion and the internal cream preparation, and the amount of the inner cream preparation is about one third of the total amount. Therefore, it was confirmed that there was no need to disperse the surfactant throughout the preparation, and the amount of surfactant used for emulsification could be reduced to about one third. Moreover, it confirmed that the double layer gel cream of Example 1 was a formulation of the usability | use_condition in which the irritation | stimulation and burden to skin by surfactant were reduced significantly.
(Functionality 4)
The two-layer gel cream of Example 1 was stored at temperatures of 40 ° C., 50 ° C., 4 ° C., and 25 ° C., and state changes after 3 months were observed. . From these results, the two-layer filled gel cream of Example 1 had high stability despite having a high concentration of moisturizing ingredients such as glycerin and 1,3-butylene glycol in the outer layer portion. It was confirmed to be a preparation.
(Functionality 5)
The two-layer gel cream of Example 1 is blended with two different preparations, a cosmetic gel with high transparency in the outer layer portion and an internal cream. The use test confirmed that the preparation can be used while visually adjusting the two types of use by using a spatula. In other words, use a lot of highly transparent aqueous beauty gel during the day when moisturizing ingredients tend to be insufficient, and use a lot of cream that contains a lot of oil, such as after going to bed or face washing, where oil tends to be insufficient. One formulation can be used with visual adjustment. In this way, the double-layer gel cream is a single product, but can be used according to the skin condition.
(Functionality 6)
The double-layer gel cream of Example 1 has a shape in which the internal cream is wrapped with a cosmetic gel in the outer layer portion, and an oil-soluble fragrance is blended only in the internal cream portion of the double-layer gel cream. For this reason, the two-layer gel cream before use was a preparation in which almost no scent was felt in the use test, but it was confirmed by the use test that a fresh scent spreads immediately after use. Even after use, most of the internal cream was wrapped in a highly transparent gel, and the freshness of the fragrance persisted until the end. In addition, the two-layer gel cream has a very low possibility that the oil component will come into direct contact with the outside air, the oxidation of the oil component contained in the internal cream is also suppressed, and the odor of the oil component due to changes over time should not be felt. It was confirmed.
(Functionality 7)
As shown in FIG. 2, the two-layer gel cream of Outer Example 1 was confirmed to have an appearance that was excellent in aesthetics because the cream gel was completely wrapped in a yellow and highly transparent cosmetic gel. It was also confirmed that it can be used without sacrificing its aesthetics even during use.
(Example 2: Preparation of two-layer cleansing gel cream)
According to the following formulation and manufacturing method, an aqueous cleaning component is blended and an aqueous gel is excellent in cleaning aqueous stains. A two-layer cleansing gel cream containing “cleansing cream” was prepared.
(Formulation 3: outer layer preparation / double-layer cleansing gel cream)
(A) Carboxyvinyl polymer: 0.7 (% by weight)
(B) Potassium hydroxide: 0.25 (% by weight)
(A) 1,3-butylene glycol: 20 (% by weight)
(A) Polyglyceryl monolaurate: 5 (% by weight)
(A) Methyl paraoxybenzoate: 0.2 (% by weight)
(A) Purified water: the remaining amount is added so that the total amount becomes 100 (wt%) (preparation method)
The component (A) was dissolved by heating with stirring, and then the component (B) dissolved in 10% using purified water was added. Then, the transparent gel was obtained by cooling to room temperature, stirring.
(Formulation 4: Inner layer preparation / two-layer cleansing gel cream)
(A) Cetyl palmitate: 2 (% by weight)
(A) Stearic acid: 3.5 (% by weight)
(A) Cetanol: 4.2 (% by weight)
(A) Squalane: 45 (% by weight)
(A) Sodium polyoxyethylene lauryl ether phosphate: 1 (% by weight)
(A) Methyl polysiloxane: 0.3 (% by weight)
(A) Sorbitan monostearate: 0.5 (% by weight)
(A) Polysoxyethylene sorbitan monostearate (20E.O.): 3.5 (% by weight)
(A) Butyl paraoxybenzoate: 0.25 (% by weight)
(A) Natural vitamin E: 0.1 (% by weight)
(C) Potassium hydroxide: 0.16 (% by weight)
(B) Concentrated glycerin: 5 (% by weight)
(B) Methyl paraoxybenzoate: 0.15 (% by weight)
(D) Fragrance: 0.08 (wt%)
(B) Purified water: the remaining amount is added so that the total amount becomes 100 (% by weight) (preparation method)
Component (A) and component (B) were heated separately and mixed at 80 ° C., then component (C) dissolved in 10% was added using purified water, and the mixture was stirred using a homomixer. Cooling was started, the component (D) was added at 40 ° C., and the mixture was further stirred to cool to room temperature, thereby obtaining a white cream-like emulsion composition.
(Measurement of physical properties)
Formulation 3 cleansing gel formulation (outer layer formulation / bilayer cleansing gel cream) and formulation 4 cleansing cream formulation (inner layer formulation / bilayer cleansing gel cream) were prepared in the manner described above, 100 g was taken in a beaker and allowed to stand at room temperature for 24 hours, and then the maximum load and specific gravity of each preparation were measured. Each physical property value was as follows.

Formulation 3 cleansing gel preparation: Maximum load 0.50 N, specific gravity 1.02
Formulation 4 cleansing cream preparation: maximum load 0.59N, specific gravity 0.91
In addition, the maximum load of each preparation is the same as the measurement method performed by the said prescription 1 and the prescription 2.
(Filling method of two-layer cleansing gel cream)
A glass container for cream (total amount: 50 ml) was filled with 32 g of the prescription 3 gel using a filling machine (manufactured by JEM Co., Ltd., cream filling machine FIR-1A). Thereafter, the tip of the nozzle was set at the center of the filled gel, and 16 g of the cleansing cream preparation of Formula 4 was filled in a glass container filled with the cleansing gel preparation of Formula 3.

This test also confirmed that the product of the present invention can be produced by a filling machine used in a cosmetic production line.
(Functionality of two-layer cleansing gel cream)
A use test was performed using the two-layer cleansing gel cream prepared in Example 2 to confirm the functionality of the formulation. In the use test, the user was instructed to use a spatula to take an appropriate amount of the formulation and use it as a cleanser against skin makeup stains. After use, we asked about its feel and functionality in an interview format. The functionalities of the preparations that can be confirmed from the test, formulation components, and preparation methods are listed below.
(Functionality 1)
The two-layer cleansing gel cream of Example 2 has an effect of washing an oily dirt by blending an oily washing ingredient in an “aqueous cleansing gel” excellent in an effect of washing an aqueous dirt by adding an aqueous washing ingredient. It is a preparation containing “cleansing cream” excellent in the above. This preparation was taken so as to include both the outer layer portion and the inner portion preparation, and the cleansing function against skin stains such as makeup stains was confirmed. The two-layer cleansing gel cream showed a strong cleansing effect on both aqueous and oily soils. Further, the cleansing cream was characterized by a high water solubility of the preparation and a refreshing finish with no remaining residue. From the use test, it was confirmed that the two-layer cleansing gel cream of Example 2 was a preparation having the advantages of both a cleansing cream and an aqueous cleansing gel.
(Functionality 2)
The two-layer cleansing gel cream of Example 2 is composed of an aqueous cleansing gel preparation containing an aqueous cleaning component, a large amount of other aqueous cleaning ingredients, and a cleansing cream preparation containing a large amount of an oily component. Thus, the two-layer cleansing gel cream has an oily component and an aqueous component separated in one preparation. Thereby, the selectivity of the component which can be mix | blended increases.
(Functionality 3)
In the two-layer cleansing gel cream of Example 2, two types of preparations were completely divided into an aqueous cleansing gel preparation of the outer layer part and an inner cleansing cream preparation, and the blending amount of the inner cream part was 3 minutes of the total amount. It is about 1 of. Therefore, it was confirmed that there was no need to disperse the surfactant throughout the preparation, and the amount of surfactant necessary for emulsification could be reduced to about one third. Moreover, it confirmed that the double-layer cleansing gel cream of Example 2 was a formulation of the usability | use_condition in which the irritation | stimulation and burden to skin by surfactant were reduced significantly.
(Functionality 4)
The two-layer cleansing gel cream of Example 2 was stored at temperatures of 4 ° C., 25 ° C., 40 ° C., and 50 ° C., and the change in state after 3 months was observed. It was. From this result, in addition to the moisturizing component such as 1,3-butylene glycol in the outer layer portion, the two-layer cleansing gel cream of Example 2 has a high concentration of an aqueous component that impairs the stability of the emulsion preparation, such as an aqueous cleaning component. It was confirmed that the preparation had high stability even though it was formulated in
(Functionality 5)
The two-layer cleansing gel cream of Example 2 is blended with an aqueous cleansing gel formulation for the outer layer portion and a different formulation for the internal cleansing cream formulation. The use test confirmed that the preparation can be used while visually adjusting the two types of use by using a spatula. That is, when removing oil stains such as makeup, it was confirmed that one preparation can be used while visually adjusting, such as using a lot of cleansing cream. As described above, the two-layer cleansing gel cream is a single product, but can be properly used depending on the desired cleansing function.
(Functionality 6)
The double-layer cleansing gel cream of Example 2 has a shape in which the internal cleansing cream preparation is wrapped in the cleansing gel preparation of the outer layer portion, and an oil-soluble fragrance is blended only in the cleansing cream preparation inside the double-layer cleansing gel cream doing. For this reason, it was a preparation in which the scent hardly felt in the two-layer gel cream before use in the use test, but it was confirmed by the use test that a fresh scent spreads immediately after use. Even after use, most of the internal cream was wrapped in a highly transparent gel, and the freshness of the fragrance persisted until the end. Furthermore, the two-layer cleansing gel cream has a very low possibility that the oily component will come into direct contact with the outside air, and the oxidation of the oily component contained in the internal cleansing cream is also suppressed, and the odor of the oily component due to changes over time is felt. Confirmed that there is no.
(Functionality 7)
As shown in FIG. 3, the two-layer cleansing gel cream of Example 2 was confirmed to have an excellent appearance with a clean cleansing gel with a highly transparent cleansing cream wrapped in a spherical shape. It was also confirmed that it can be used without sacrificing its aesthetics even during use.

  Thus, although the invention has been illustrated using preferred embodiments of the invention, the invention should not be construed as limited to this embodiment. It is understood that the scope of the present invention should be construed by the claims. A person skilled in the art can understand from the description of specific preferred embodiments of the invention that the equivalent scope is implemented based on the description of the present invention and common general technical knowledge.

  According to the present invention, it is possible to provide a cosmetic containing a gel or cream-like, semi-solid spherical preparation having a different composition and functionality in a gel-like, cream-like, or semi-solid preparation. The cosmetic of the present invention is a cosmetic that is excellent in aesthetics and has the functionality of two different types of cosmetics in one formulation.

1 Cosmetic 2 Container A Outer layer formulation B Internal formulation

Claims (3)

Formulation A in which an aqueous solution is gelled,
Having a formulation B emulsified with oil in the container,
The formulation A has a viscosity at 6 rpm of 3000 to 20000 mPa · s and a thixotropy at 6/60 rpm of 5 or more.
The formulation B has a viscosity at 6 rpm of 2000 to 15000 mPa · s or more and a thixotropy at 6/60 rpm of 3 or more.
One of the preparations A and B is included in a state of floating in the other,
A water-oil two-layer cosmetic characterized by an all-in-one function in which the viscosity at 6 rpm of the encapsulated formulation and the encapsulated formulation that encloses the encapsulated formulation is the encapsulated formulation <the encapsulated formulation. The water-oil two-layer cosmetic according to claim 1, wherein the preparation B is embedded in the preparation A. The cosmetic according to claim 1 or 2, wherein the preparation B is blended in an amount of 20 to 40% by weight based on the total amount of the preparation.

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