JP2019147758A - Multilayer forming cosmetic - Google Patents

Abstract

To provide a multilayer forming cosmetic that has an esthetic effect absent in the prior art and, when used for eyelashes, sufficiently exhibits original functions of mascaras such as curling effects, curl retaining effects, and long-term cosmetic durability.SOLUTION: A multilayer forming cosmetic 10 includes at least a lower layer 1 comprising an oily or water-in-oil composition, and an upper layer 2 comprising an oily or water-in-oil composition. The multilayer forming cosmetic has an interface 5 formed between the lower layer 1 and the upper layer 2, and the lower layer 1 and the upper layer 2 differ in visible characteristics.SELECTED DRAWING: Figure 1

Description

  The present invention relates to a multilayer film-forming cosmetic applicable to keratinous coating applications such as eyelashes, eyebrows, hair, and nails.

  Film-forming cosmetics applicable to keratinous coating applications such as eyelashes, eyebrows, hair, and nails are required to have various effects from the functional aspect. For example, eyelash cosmetics represented by mascara, etc. have effects such as making eyelashes appear darker and longer, giving the eyelashes a volume feeling, curling effect (effect of curling eyelashes upward), curl retention effect There are demands for functional effects such as (an effect of maintaining curl over time) and a long-lasting cosmetic effect (water resistance, sebum resistance).

  On the other hand, recently, in addition to the above-mentioned functional effects, the visual cuteness, beauty, impact, etc., such as the appearance that looks great when uploading and publishing photos, etc. This effect is also called an aesthetic effect).

  Cosmetics for eyelashes are usually contained in a container whose contents cannot be seen. Conventionally, no one pursuing the aesthetic effect of the contents itself has been known, and in pursuit of the functional aspect of good mascara growth, eyelashes As a result of making the cosmetic for cosmetics into a two-layer structure of an oil layer and an aqueous layer, there are only eyelash cosmetics in which the oil layer and the aqueous layer are not compatible (Patent Documents 1 and 2).

JP 2012-180316 A JP 2012-180317 A

  However, since Patent Documents 1 and 2 are eyelash cosmetics in which the aqueous layer is not compatible, there is a problem that the functional aspects such as the curl effect, the curl retention effect, and the long-lasting cosmetic effect are not sufficient. . In order to make the functional effects such as the curl effect sufficient, for example, the eyelash cosmetic must be an oily composition or a water-in-oil composition, but in the case of the same type of composition, Since they are not separated as in Patent Documents 1 and 2, layers cannot be formed naturally. That is, in the multilayer film-forming cosmetic composition of an oily composition or a water-in-oil composition, it is extremely difficult to achieve both a functional effect and an aesthetic effect by the layer structure.

  The present invention has been made in view of the above-described problems, and an object of the present invention is to provide a multilayer film-forming cosmetic material that has an aesthetic effect that has not been heretofore and has sufficient functional effects.

  The multilayer film-forming cosmetic of the present invention is a multilayer film-forming cosmetic comprising at least a lower layer comprising an oily or water-in-oil composition and an upper layer comprising an oily or water-in-oil composition, It has an interface formed by the lower layer and the upper layer, and the visible characteristics are different between the lower layer and the upper layer.

  The visually distinguishable characteristics are preferably hue, lightness, saturation, brightness or transparency.

  The viscosity of the composition constituting the lower layer is preferably 10,000 Pa · s or more at 35 to 45 ° C.

  The multilayer film-forming cosmetic of the present invention may have a discharge part in which the lower layer composition protrudes in a substantially conical shape toward the upper layer at the interface.

  The multilayer film-forming cosmetic of the present invention is preferably filled in a transparent container.

  It is preferable that the composition of the lower layer and the upper layer can be mixed to change the visible characteristics of the lower layer and the upper layer.

  The multilayer film-forming cosmetic of the present invention is preferably for eyelashes.

In the multilayer film-forming cosmetic of the present invention, the composition preferably contains a film agent.
The film agent is preferably trimethylsiloxysilicate or pullulan tri (trimethylsiloxy) silylpropylcarbamate.
Trimethylsiloxysilicate or pullulan tri (trimethylsiloxy) silylpropylcarbamate is preferably 0.05 to 60% by mass based on the total amount of the lower layer composition.

In the multilayer film-forming cosmetic of the present invention, the composition preferably contains a thickener.
The thickener preferably contains palmitic acid or dimethylsilylated silica.

  The multilayer film-forming cosmetic of the present invention is a multilayer film-forming cosmetic comprising at least a lower layer comprising an oily or water-in-oil composition and an upper layer comprising an oily or water-in-oil composition, Since it has an interface formed between the lower layer and the upper layer, and the visible characteristics are different between the lower layer and the upper layer, it has an aesthetic effect that has not been conventionally obtained, and consists of an oily or water-in-oil composition. Also, it can have functional effects.

FIG. 1 is a schematic view showing an embodiment of the multilayer film-forming cosmetic of the present invention. FIG. 2 is a schematic view of an interface portion of another embodiment of the multilayer film-forming cosmetic of the present invention.

Hereinafter, the multilayer film-forming cosmetic of the present invention will be described in detail.
The multilayer film-forming cosmetic of the present invention is a multilayer film-forming cosmetic comprising at least a lower layer comprising an oily or water-in-oil composition and an upper layer comprising an oily or water-in-oil composition, It has an interface formed by the lower layer and the upper layer, and the visible characteristics are different between the lower layer and the upper layer.
Here, the multilayer film-forming cosmetic can be used for keratinous coating applications such as eyelashes, eyebrows, hair, and nails.

  First, the structure of the multilayer film-forming cosmetic of the present invention will be described with reference to the drawings. As shown in FIG. 1, a multilayer film-forming cosmetic 10 of the present invention includes a lower layer 1 made of an oily or water-in-oil composition and a multilayer 2 made of an oily or water-in-oil composition. A film-forming cosmetic comprising a container 3 that contains the composition of the lower layer 1 and the upper layer 2, and an application body 4 that is attached to and detached from the container 3. The container 3 is a transparent container, and the lower layer 1 and the upper layer 2 are placed on the outside of the container so that they can be seen. In FIG. 1, the lower layer 1 schematically shows a black composition, and the upper layer 2 schematically shows a transparent composition.

  The combination of the lower layer 1 and the upper layer 2 is composed of the lower layer 1 made of an oily composition and the upper layer 2 made of an oily composition, the lower layer 1 made of a water-in-oil composition, and the upper layer 2 made of a water-in-oil composition. Alternatively, the lower layer 1 made of an oil-based composition and the upper layer 2 made of a water-in-oil composition, or the lower layer 1 made of a water-in-oil composition and the upper layer 2 made of an oil-based composition may be used.

  The multilayer film-forming cosmetic 10 of the present invention has an interface 5 formed between the lower layer 1 and the upper layer 2, and the visible properties are different between the lower layer 1 and the upper layer 2. Here, the lower layer 1 and the upper layer 2 are mixed at the interface if the lower layer 1 and the upper layer 2 can be visually discerned in addition to the case where the lower layer 1 and the upper layer 2 are not intermingled and the interface is through a clear surface. It may fit. For simplicity, FIG. 1 shows a two-layer structure consisting of a lower layer 1 and an upper layer 2. However, the structure is not limited to a two-layer structure. Good. In the case of three or more layers, the upper layer is the upper layer and the lower layer is the lower layer.

  The visually distinguishable characteristics are preferably hue, lightness, saturation, brightness or transparency. Here, the hue is the difference in color such as red, blue, green, and yellow, the brightness is the brightness of the color, the saturation is the vividness of the color, and the brightness is the degree of brightness, and the brightness of the color It means something that cannot be expressed by itself, for example, with and without lamé, with and without fiber. Transparency means that the background can be seen when the transparent container is filled.

  As for the characteristics that can be seen, one characteristic may be different between the lower layer and the upper layer, or a plurality of characteristics may be different in combination. For example, the lower layer is black and the upper layer is blue (difference only in hue), the lower layer is black and the upper layer is bright blue (difference between hue and saturation), the lower layer is blue with glitter, and the upper layer is black without glitter (hue and Brightness difference), the lower layer is blue with high brightness, and the upper layer is translucent with glitter (difference in hue, brightness, brightness and transparency), and the like.

  In FIG. 1, the entire container 3 is a transparent container. For example, when the lower layer is colored and transparent, and the upper layer is transparent with lamé, the vertical half of the container is transparent and the opposite half is If a colored container is provided with a picture or a letter on a colored half, the picture or letter can be visually recognized from the outside of the container, and the aesthetic effect can be improved in each stage. Moreover, it is good also as a structure which arrange | positions a transparent window so that the interface 5 vicinity part can be visually recognized in a normal container (a container which is not transparent). In this case, the aesthetic effect can be improved by appropriately changing the shape of the window portion.

  FIG. 2 is a schematic view of an interface portion of another embodiment of the multilayer film-forming cosmetic of the present invention. As shown in FIG. 2, the composition of the lower layer 1 may have the discharge part 6 which protruded in the substantially cone shape toward the upper layer 2 in the interface 5. As shown in FIG. The term “substantially conical” means not only when the apex of the cone is at the center of the bottom of the cone but also when it is not at the center. In addition, a line connecting the vertex of the cone to all the points on the circumference of the circle on the bottom surface of the cone may be a straight line, a curve, or a reverse icicle. Furthermore, the discharge part protruding in a substantially conical shape may be a semi-conical discharge part (6a) in contact with the side surface of the container.

  The above discharge part occurs when the composition which comprises a lower layer contains air in the case of manufacture of multilayer film formation cosmetics. That is, as will be described later, the multilayer film-forming cosmetic is manufactured by filling a container with the composition constituting the lower layer and then filling the container with the composition constituting the upper layer and cooling to room temperature. When air is contained in the composition that constitutes the composition, the air contained over time elevates the composition that constitutes the lower layer to the upper layer and rises, resulting in discharge at the interface formed by the lower layer and the upper layer. Part is formed. Such a discharge part becomes random from the formation process, and it enhances the aesthetic effect.

  Furthermore, the multilayer film-forming cosmetic of the present invention comprises an oily or water-in-oil composition for the lower layer and an oily or water-in-oil composition for the upper layer, so that the lower layer and the upper layer are gradually mixed in the course of use. However, in the mixing process (use process), the visible properties of the lower and upper layers mix and change, resulting in various forms, which also enhances the aesthetic effect, and also in the user You can enjoy the change of the form.

The viscosity of the composition constituting the lower layer is preferably 10,000 Pa · s or more at 35 to 45 ° C. When the viscosity is within this range, the multilayer film-forming cosmetic can be produced without mixing the lower layer and the upper layer even if the upper layer is filled on the lower layer in the production process. Here, the viscosity is a value measured with a rheometer Physician MCR301 manufactured by Anton Paar. Specifically, this is a value measured as a shear stress when the shear rate is 0.3 s ^{−1 at} a parallel plate type as a measuring jig, a diameter of 25 mm, a strain swing angle gamma = 5%, and a frequency f = 1 Hz.
When the number of layers is three or more, the viscosity of the composition constituting the lowermost layer and the composition constituting the upper layer is preferably 10,000 Pa · s or more at 35 to 45 ° C.

  Subsequently, the oily composition or the water-in-oil composition constituting the lower layer and the upper layer of the multilayer film-forming cosmetic of the present invention will be described with reference to an eyelash cosmetic. The oily composition or water-in-oil composition constituting the lower layer and upper layer of the eyelash cosmetic is a film agent, thickener, oil such as volatile oil, wax, It can be prepared using dextrin fatty acid esters, organically modified clay minerals, coloring materials and the like. In addition, other multilayer film-forming cosmetics (for eyebrows, for hair, nails, etc.) can also be prepared using materials widely used for multilayer film-forming cosmetics.

  Examples of the coating agent include siliconeized pullulan, trimethylsiloxysilicic acid, dimethylaminomethacrylate quaternized salt, vinylpyrrolidone / methacrylic acid-N, N-dimethyl-ethylantinioethyl salt copolymer, silicone / polyether type Polyurethane resin, (methacryloyloxyethylcarboxybetaine / methacrylic alkyl) copolymer, dextrin, (vinyl pyrrolidone / VA) copolymer, alkyl acrylate copolymer ammonium, polyvinyl alcohol, ethyl polyacrylate, (alkyl acrylate / octyl acrylamide) copolymer, ( Acrylates / propyl trimethicone methacrylate) copolymer, polyvinyl acetate, (alkyl acrylate / dimethicone) copolymer, polyether graft acrylic Corn, trimethylsiloxy silicic acid, fluorosilicone-modified silicone resin and the like. Preferred as the siliconeized pullulan is pullulan tri (trimethylsiloxy) silylpropylcarbamate.

  The blending amount of the film agent is preferably 0.05 to 60% by mass, and preferably 0.1 to 30% by mass with respect to the total amount of the lower layer composition as a pure component. It is preferable that it is 0.05-60 mass% with respect to upper layer composition whole quantity, and it is preferable that it is 0.1-45 mass%. When the blending amount of the film agent is less than 0.05% by mass, the makeup-moistening effect and curling effect are inferior. Moreover, when it exceeds 60 mass%, it is inferior to the hot water removal effect.

Thickeners include plant polymers such as arabia gum, tragacanth gum, galactan, guar gum, carob gum, caraya gum, carrageenan, pectin, agar, starch, glycyrrhizic acid, and microbial polymers such as xanthan gum, dextran, succinoglucan, and bullulan. Natural water-soluble polymers including animal polymers such as collagen, casein, albumin, gelatin; semi-synthetic water-soluble polymers such as starch polymers, cellulose polymers, alginic acid polymers; vinyl polymers And synthetic water-soluble polymers such as polyoxyethylene polymers, polyoxyethylene polyoxypropylene copolymer copolymers, acrylic polymers, polyethyleneimine, and cationic polymers.
0.05-35 mass% is preferable and, as for the compounding quantity of a thickener, 0.2-30 mass% is more preferable. When the blending amount of the thickener is less than 0.05% by mass, the viscosity may not be maintained. Moreover, when it exceeds 35 mass%, it may become difficult to apply.

Examples of the volatile oil include hydrocarbon oils such as light liquid isoparaffin and isododecane, chain polysiloxane oils such as low molecular weight volatile dimethylpolysiloxane, octamethylcyclotetrasiloxane, decamethylcyclopentasiloxane, and dodecamethylcyclohexa Examples thereof include cyclic silicone oils such as siloxane.
10-80 mass% is preferable and the compounding quantity of a volatile oil component has more preferable 30-60 mass%. When the blending amount of the volatile oil is less than 10% by mass, it may be difficult to apply. Moreover, when it exceeds 80 mass%, a viscosity may be unable to be maintained.

  Examples of oil components include hydrocarbon oils such as heavy isoparaffin, squalane and liquid paraffin; cetyl-2-ethylhexanoate, 2-ethylhexyl palmitate, 2-octyldodecyl myristate, neopentylglycol-2-ethylhexa Esters such as noate, isopropyl myristate, myristyl myristate; oils such as olive oil, avocado oil, jojoba oil, sunflower oil, safflower oil, coconut oil, macadamia nut oil, mink oil, liquid lanolin, lanolin acetate, castor oil; Silicone oils such as dimethylpolysiloxane, methylphenylpolysiloxane, highly polymerized gum-like dimethylpolysiloxane, polyether-modified silicone, amino-modified silicone; fluorine-modified dimethylpolysiloxane, fluorine-modified methylphenylpoly Rokisan, perfluoropolyether, a fluorine-based oil or the like of the perfluorocarbon and the like.

Examples of the wax include beeswax, candelilla wax, cotton wax, carnauba wax, bayberry wax, ibota wax, whale wax, montan wax, nuka wax, lanolin, kapok wax, lanolin acetate, liquid lanolin, sugar cane wax, lanolin fatty acid isopropyl, lauryl hexyl, reduced Lanolin, jojoba wax, hard lanolin, shellac wax, POE lanolin alcohol ether, POE lanolin alcohol acetate, POE cholesterol ether, lanolin fatty acid polyethylene glycol, POE hydrogenated lanolin alcohol ether, ceresin, polyethylene wax, microcrystalline wax, sugar wax, paraffin, etc. Can be mentioned.
The blending amount of the wax is preferably 1 to 20% by mass, and more preferably 3 to 15% by mass. When the blending amount of the wax is less than 1% by mass, the curling effect may be inferior. Moreover, when it exceeds 20 mass%, it may become lumpy and may become worse.

The dextrin fatty acid ester is preferably an ester compound of a fatty acid having 8 to 24 carbon atoms and a dextrin having an average degree of polymerization of 10 to 50. Examples thereof include dextrin palmitate, dextrin stearate, dextrin stearate, dextrin isostearate, (palmitic acid / 2-ethylhexanoic acid) dextrin, and the like.
1-40 mass% is preferable and, as for the compounding quantity of dextrin fatty acid ester, 3-30 mass% is more preferable. When the blending amount of the dextrin fatty acid ester is less than 1% by mass, the stability may be inferior. Moreover, when it exceeds 40 mass%, it may become impossible to apply | coat uniformly.

Organically modified clay minerals include natural or synthetic montmorillonites such as montmorillonite, saponite, hectorite (commercially available products such as bee gum, kunipia, laponite) and synthetic mica known as sodium silicic mica or sodium or lithium teniolite. This clay mineral is obtained by treating with a quaternary ammonium salt type cationic surfactant. Examples thereof include disteardimonium hectorite, dimethylalkylammonium hectorite, distearyldimethylammonium chloride-treated aluminum magnesium silicate, and the like.
1-10 mass% is preferable and, as for the compounding quantity of an organic modified clay mineral, 2-8 mass% is more preferable. If the blending amount of the clay mineral is less than 1% by mass, the thixotropic property may not be obtained. Moreover, when it exceeds 10 mass%, it may become impossible to apply | coat uniformly.

The color material is not particularly limited as long as it is generally used for makeup cosmetics, but a hydrophobic material is preferably used. For example, red iron oxide, yellow iron oxide, black iron oxide, inorganic white pigment (for example, zinc oxide); inorganic red pigment (for example, iron titanate); inorganic purple pigment (for example, mango violet, cobalt violet) Inorganic green pigments (eg, chromium oxide, chromium hydroxide, cobalt titanate, etc.); Inorganic blue pigments (eg, ultramarine blue, bitumen, etc.); Pearl pigments (eg, titanium oxide coated mica, titanium oxide coated oxy) Bismuth chloride, titanium oxide coated talc, colored titanium oxide coated mica, bismuth oxychloride, fish scale foil, etc.); metal powder pigments (eg, aluminum powder, copper powder, etc.); organic pigments such as zirconium, barium or aluminum lake (eg, Red 201, Red 202, Red 204, Red 205, Organic pigments such as color 220, red 226, red 228, red 405, orange 203, orange 204, yellow 205, yellow 401, blue 404, red 3, red 104, red 106 No., Red No. 227, Red No. 230, Red No. 401, Red No. 505, Orange No. 205, Yellow No. 4, Yellow No. 5, Yellow No. 202, Yellow No. 203, Green No. 3, Blue No. 1, etc.); natural pigment (For example, chlorophyll, β-carotene and the like).
0.001-30 mass% is preferable and the compounding quantity of a color material has more preferable 2-20 mass%.

  Moreover, a fiber, a moisturizer, a chemical | medical agent, antiseptic | preservative, a fragrance | flavor, antioxidant, a ultraviolet absorber etc. can also be mix | blended with the cosmetics for eyelashes within the range which does not impair the effect of this invention.

  The multilayer film-forming cosmetic of the present invention can be produced according to a method usually used for a film-forming cosmetic of an oily composition or a water-in-oil composition. In the case of an oily composition, the oil phase component is heated to about 90 ° C. and uniformly mixed to form an oily composition for the lower layer, which is filled in a container, and the oily composition for the upper layer prepared in the same manner is used. After filling, it can be prepared by cooling to room temperature. In the case of a water-in-oil composition, first, the oil phase component is heated to about 90 ° C. and uniformly mixed to obtain an oil phase, and the water phase component is uniformly mixed at room temperature to obtain an aqueous phase. The water phase is added and emulsified while stirring the oil phase, and this is filled into a container as a water-in-oil composition for the lower layer, and then the water-in-oil composition for the lower layer prepared in the same manner is filled as the upper layer. Thereafter, it can be prepared by cooling to room temperature. The same applies to the case where the lower layer is an oil-based composition and the upper layer is a water-in-oil composition film-forming cosmetic, and the lower layer is a water-in-oil composition and the upper layer is an oil-based composition film-forming cosmetic. be able to.

  Next, the present invention will be described more specifically with reference to examples. The present invention is not limited in any way by the following examples. The blending amount is mass% unless otherwise specified.

(Preparation of oil-based composition constituting the lower layer)
With the formulation shown in compositions 2, 5 and 7 in Table 1, each component was heated to about 90 ° C. and uniformly mixed to prepare an oily composition. The viscosity of these oil-based compositions according to the measurement conditions described above was 10,000 Pa · s or more at 40 ° C.
Moreover, the oil-based composition was similarly adjusted by the prescription shown in the compositions 9 and 10 of Table 1. The viscosity of these oil-based compositions was less than 10,000 Pa · s at 40 ° C.

(Preparation of water-in-oil composition constituting the lower layer)
In the formulations shown in Compositions 1, 3, 4 and 6 in Table 1, oil phase components other than water are heated to about 90 ° C. and uniformly mixed to form an oil phase, and water is added while stirring the oil phase. And emulsified to prepare a water-in-oil composition. The viscosity of these water-in-oil compositions under the above-described measurement conditions was 10,000 Pa · s or more at 40 ° C.
A water-in-oil composition was prepared in the same manner with the formulation shown in Composition 8 in Table 1. The viscosity of the water-in-oil composition according to the measurement conditions described above was less than 10,000 Pa · s at 40 ° C.

(Preparation of oily composition constituting upper layer)
With the formulation shown in Compositions 4 and 5 in Table 2, each component was heated to about 90 ° C. and uniformly mixed to prepare an oily composition.

(Preparation of water-in-oil composition constituting upper layer)
In the formulations shown in Compositions 1, 2 and 3 in Table 2, oil phase components other than water are heated to about 90 ° C. and uniformly mixed to form an oil phase, and water is added to the oil phase while stirring to emulsify And a water-in-oil composition was prepared.

(Example 1-6)
In the combination shown in Table 3, the lower layer composition at 40 ° C. was filled in the container, and immediately after filling the upper layer composition at 40 ° C. without cooling, it was cooled to room temperature to produce a two-layer eyelash cosmetic. . In Example 1-6, the lower layer and the upper layer are a combination of oily compositions, but have an interface formed by the lower layer and the upper layer, and the properties that are visible in the lower layer and the upper layer are different as shown in Table 3. It was. In some examples, a discharge portion in which the lower layer composition protruded in a substantially conical shape toward the upper layer was observed.

(Examples 7-15)
In the combination shown in Table 4, the lower layer composition at 40 ° C. was filled in the container, and immediately after filling the upper layer composition at 40 ° C. without cooling, it was cooled to room temperature to produce a two-layer eyelash cosmetic. . In Examples 7-15, the lower layer is a combination of an oily composition and the upper layer is a water-in-oil composition, but it has an interface formed by the lower layer and the upper layer, and is visible in the upper layer and the lower layer as shown in Table 4. The possible qualities were different. In some examples, a discharge portion in which the lower layer composition protruded in a substantially conical shape toward the upper layer was observed.

(Examples 16-23)
In the combination shown in Table 5, the container was filled with the lower layer composition at 40 ° C., and immediately filled with the upper layer composition at 40 ° C. without cooling, and then cooled to room temperature to produce a two-layer eyelash cosmetic. . Examples 16-23 are a combination of a water-in-oil composition in the lower layer and an oily composition in the upper layer, but have an interface formed by the lower layer and the upper layer, and are visible in the upper layer and the lower layer as shown in Table 5. The possible qualities were different. In some examples, a discharge portion in which the lower layer composition protruded in a substantially conical shape toward the upper layer was observed.

(Examples 24-35)
With the combinations shown in Table 6, the lower layer composition at 40 ° C. was filled in the container, and immediately after filling the upper layer composition at 40 ° C. without cooling, it was cooled to room temperature to produce a two-layer eyelash cosmetic. . Examples 24-35 are a combination of a water-in-oil composition in both the lower layer and the upper layer, but have an interface formed by the lower layer and the upper layer, and are visible in the upper layer and the lower layer as shown in Table 6. Was different. In some examples, a discharge portion in which the lower layer composition protruded in a substantially conical shape toward the upper layer was observed.

In addition, although it tried to manufacture the cosmetics for 2 layer eyelashes similarly by the combination of the lower layer composition 8-10 and the upper layer composition 1-5, in this case, a lower layer composition and an upper layer composition are mixed. As a result, no interface was formed between the lower layer and the upper layer.

DESCRIPTION OF SYMBOLS 1 Lower layer 2 Upper layer 3 Container 4 Application body 5 Interface 6, 6a Discharge part 10 Multilayer film formation cosmetics

Claims (12)

A multilayer film-forming cosmetic comprising at least a lower layer comprising an oily or water-in-oil composition and an upper layer comprising an oily or water-in-oil composition,
A multilayer film-forming cosmetic having an interface formed between the lower layer and the upper layer, and having different visible properties between the lower layer and the upper layer.   The multilayer film-forming cosmetic according to claim 1, wherein the visible property is hue, brightness, saturation, luminance, or transparency.   The multilayer film-forming cosmetic according to claim 1 or 2, wherein the composition constituting the lower layer has a viscosity of 10,000 Pa · s or more at 35 to 45 ° C.   The multilayer film-forming cosmetic according to claim 1, 2 or 3, wherein the lower layer composition has a discharge portion protruding substantially conically toward the upper layer at the interface.   The multilayer film-forming cosmetic according to any one of claims 1 to 4, which is filled in a transparent container.   The multilayer film-forming cosmetic composition according to any one of claims 1 to 5, wherein the composition of the lower layer and the upper layer can be mixed to change the visible characteristics of the lower layer and the upper layer. .   The multilayer film-forming cosmetic according to any one of claims 1 to 6, wherein the multilayer film-forming cosmetic is for eyelashes.   The multilayer film forming cosmetic according to any one of claims 1 to 7, wherein the multilayer film forming cosmetic contains a film agent.   The multilayer film-forming cosmetic according to any one of claims 1 to 8, wherein the film agent is trimethylsiloxysilicate or pullulan tri (trimethylsiloxy) silylpropylcarbamate.   The multilayer film-forming cosmetic according to any one of claims 1 to 9, wherein the trimethylsiloxysilicate or pullulan tri (trimethylsiloxy) silylpropylcarbamate is 0.05 to 60% by mass relative to the total amount of the lower layer composition. .   The multilayer film-forming cosmetic according to any one of claims 1 to 10, wherein the composition contains a thickener.   The multilayer film-forming cosmetic according to any one of claims 1 to 11, wherein the thickener comprises palmitic acid or dimethylsilylated silica.