JP2021109852A - Solid cosmetics with pattern and method for manufacturing the same - Google Patents

Abstract

To suppress the binding of granular solid cosmetics.SOLUTION: A solid cosmetic 2 with a pattern of the present invention contains a plurality of solid cosmetics 1, has at least one independently arranged cosmetic that is adjacent to other solid cosmetics in a plan view, as a solid cosmetic, and has a boundary layer 22 containing powders at the boundary between the independently arranged cosmetic and the other solid cosmetics. Preferably, the other solid cosmetics are a plurality of solid cosmetics adjacent to the independently arranged cosmetic. Preferably, the independently arranged cosmetic and the other solid cosmetics form a sea-island structure having the other solid cosmetics as a continuous phase.SELECTED DRAWING: Figure 2

Description

The present invention relates to a solid cosmetic with a pattern. The present invention also relates to a method for producing a solid cosmetic with a pattern.

Conventionally known solid cosmetics generally have a form in which powder is compression-molded and stored in a tray with a shallow bottom like a foundation, or a solid composition is formed into a predetermined shape at room temperature like a lipstick. Most of them are in the form. There is also a method of obtaining a solid cosmetic having a desired shape by melting the cosmetic composition by heating and cooling and solidifying the cosmetic composition in a mold having a desired shape.

The solid cosmetics are provided with multiple types of parts having different colors and compositions, thereby enhancing the design of the solid cosmetics, changing the parts used by the solid cosmetics according to the purpose, or mixing the multiple parts. Some have been proposed so that they can be used.
For example, Patent Document 1 describes a color-patterned cosmetic having an irregular color pattern formed on its surface, and as a method for producing the same, a plurality of types of granular solid cosmetics having different colors formed into particles are used. A method has been proposed in which an aggregate of the granular solid cosmetics is heated after filling the recesses, and a part of the aggregate is melted to reveal an irregular color pattern and then cooled.

Japanese Unexamined Patent Publication No. 2009-286714

In the manufacturing process of the color-patterned cosmetics described in Patent Document 1, an aggregate of granular solid cosmetics is heated and a part thereof is melted to reveal an irregular color pattern. Therefore, even if a plurality of types of granular solid cosmetics having different colors are used, the different colors are irregularly mixed at the boundary between the granular solid cosmetics. Therefore, it has been difficult to produce a solid cosmetic with a pattern having excellent design because the parts having different colors are clearly separated.

An object of the present invention is a patterned solid cosmetic having excellent design and a patterned solid cosmetic having excellent design, which can be produced without using a powder compression molding method. To provide a manufacturing method for.

The present invention includes a plurality of solid cosmetics, and has at least one independently arranged cosmetic that is adjacent to another solid cosmetic in a plan view as the solid cosmetic, and the independently arranged cosmetic and the above. The above-mentioned problems are solved by providing a patterned solid cosmetic having a boundary layer containing powder at the boundary with other solid cosmetics.

The present invention is the method for producing a patterned solid cosmetic, comprising a joining step of joining the granular raw material of the independently arranged cosmetic and the raw material of the other solid cosmetic, and the joining step is provided. In a state where the powder is attached to at least one surface of the granular raw material of the independently arranged cosmetic and the raw material of the other solid cosmetic, the granular raw material of the independently arranged cosmetic and the other solid cosmetic A softening step of softening at least one of the granular raw material of the independently arranged cosmetic and the raw material of the other solid cosmetic The above-mentioned problems are solved by providing a method for producing a solid cosmetic with a pattern.

According to the patterned solid cosmetics of the present invention, there is provided a patterned solid cosmetic having excellent design, in which a plurality of solid cosmetics are present in a state of being adjacent to each other and clearly separated.
According to the method for producing a patterned solid cosmetic of the present invention, a patterned solid cosmetic having excellent design can be produced without using a powder compression molding method.

FIG. 1 is a perspective view showing an embodiment of a solid cosmetic with a pattern of the present invention. 2 (a) is a plan view of the patterned solid cosmetic shown in FIG. 1, FIG. 2 (b) is a partially enlarged plan view of FIG. 2 (a), and FIG. 2 (c) is FIG. 2 (c). It is a schematic cross-sectional view of II-II of a). 3 (a) to 3 (d) are schematic views showing a step of forming granular solid cosmetics, which is the first half step in the method for producing patterned solid cosmetics of the present invention. FIG. 4 is a schematic view showing a step of joining granular solid cosmetics, which is a latter half step in the method for producing a patterned solid cosmetics of the present invention. FIG. 5 is a plan view showing another embodiment of the patterned solid cosmetic of the present invention, and is a view corresponding to FIG. 2 (a). FIG. 6 is a schematic view showing still another embodiment of the present invention.

Hereinafter, the present invention will be described based on its preferred embodiment. The patterned solid cosmetic of the present invention contains a plurality of solid cosmetics, and has a mosaic tile-like pattern generated by the arrangement of the plurality of solid cosmetics on at least one surface. Hereinafter, a surface having a mosaic tile-like pattern generated by arranging a plurality of solid cosmetics is also referred to as a pattern surface 2u.
Mosaic tile-like patterns can be variously formed by solid cosmetics of various shapes, colors, and sizes, or combinations thereof. For example, the shape of the solid cosmetic on the patterned surface is a polygonal shape such as a quadrangle or a triangle, a closed curved shape such as a circle or an ellipse, a concrete shape such as a flower, an animal, or a building, an irregular shape, or the like. good. A plurality of solid cosmetics may form a regular or irregular geometric shape, for example, a honeycomb shape or a polyomino shape as a whole. Further, the color of the plurality of solid cosmetics on the pattern surface may be one kind or a combination of two or more kinds of colors. Further, the sizes of the plurality of solid cosmetics on the pattern surface may be the same as each other, or may be a combination of different sizes.

A "solid cosmetic" is a cosmetic that is solid at room temperature (25 ° C.) and has the property of being able to soften or melt when heated to a temperature higher than room temperature, for example, 40 ° C. to 150 ° C. For example, oil-based cosmetics containing oils and aqueous cosmetics such as agar gel are included in the solid cosmetics referred to in the present invention. Cosmetics obtained by compression molding powder are excluded from the solid cosmetics referred to in the present invention.

The patterned solid cosmetic of the present invention has at least one, for example, a plurality of independently arranged cosmetics adjacent to other solid cosmetics in a plan view on the pattern surface 2u. The plan view means a state in which the pattern surface 2u in the patterned solid cosmetic is viewed from the normal direction thereof. As shown in FIG. 1, when the patterned solid cosmetic 2 is housed in a recess such as an opaque container 3, the upper surface facing the opening side of the recess is usually the pattern surface 2u.

FIG. 1 shows a patterned solid cosmetic 2 according to an embodiment of the present invention. The patterned solid cosmetics 2 shown in FIG. 1 have a plurality of independently arranged cosmetics 1A and 1B adjacent to other solid cosmetics in a plan view as the solid cosmetics 1. In the patterned solid cosmetics 2, as shown in FIG. 2A, all the solid cosmetics 1 located on the pattern surface 2u are independently arranged cosmetics 1A and 1B adjacent to the other solid cosmetics. .. The independently arranged cosmetic is a solid cosmetic that forms a portion corresponding to each tile in the mosaic tile-like pattern on the pattern surface 2u, and is a portion formed by the granular solid cosmetic with powder described later. You can do it.

The patterned solid cosmetic of the present invention includes a boundary layer containing powder at the boundary between the independently arranged cosmetic and other adjacent solid cosmetics. Focusing on one independently arranged cosmetic 1P located on the pattern surface 2u of the patterned solid cosmetic 2, the independently arranged cosmetic 1P includes six solid cosmetics as shown in FIG. 2 (b). It is adjacent to 1A and 1B. The patterned solid cosmetic 2 is provided with a boundary layer 22 containing the powder 11 between the independently arranged cosmetic 1P and each of the six solid cosmetics 1A and 1B located around the independent arrangement cosmetic 1P. There is. In the patterned solid cosmetics 2 shown in FIG. 1, as shown in FIG. 2 (a), all the solid cosmetics 1A and 1B including the independently arranged cosmetics 1P are the independently arranged cosmetics, and the independently arranged makeups. A boundary layer 22 containing the powder 11 is also present between the independently arranged cosmetics other than the agent 1P and the solid cosmetics adjacent thereto in the same manner as in the case of the independently arranged cosmetics 1P. The boundary layer 22 containing the powder 11 preferably exists between the independently arranged cosmetic and at least one solid cosmetic adjacent thereto for a part or all of the independently arranged cosmetics, and a part or all of them. It is preferable that it exists between the independently arranged cosmetic and two or more solid cosmetics adjacent thereto, and it may exist between some or all of the independently arranged cosmetics and all the solid cosmetics adjacent thereto. It is more preferable that some or all of the independently arranged cosmetics are formed so as to surround the entire circumference of the independently arranged cosmetics.

According to the patterned solid cosmetics of the present invention, by providing the boundary layer 22 containing the powder 11 between the adjacent solid cosmetics 1 in a plan view, the individual solid cosmetics 1 are provided on the pattern surface 2u. Since the portion made of the material appears in a state of being clearly partitioned by the boundary layer 22 containing the powder 11, it has a mosaic tile-like pattern surface having excellent design.

Further, as shown in FIG. 5, by providing the independently arranged cosmetics 1A and 1B adjacent to the other plurality of solid cosmetics as in the patterned solid cosmetics 2 shown in FIG. 2A, as shown in FIG. The mosaic tile-like pattern appearing on the pattern surface 2u can be made more diverse than the case where the solid cosmetics adjacent to the independently arranged cosmetics 1C form a continuous phase.
The patterned solid cosmetic of the present invention is independent surrounded by a plurality of other solid cosmetics as in the independently arranged cosmetic 1P shown in FIG. 2A from the viewpoint of improving the variety of patterns. It is preferable to have the arranged cosmetics on the pattern surface 2u, and it is more preferable to have a plurality of such independently arranged cosmetics on the pattern surface 2u.

The solid cosmetics contained in the patterned solid cosmetics of the present invention may be solid cosmetics having the same composition, or may be a plurality of types of solid cosmetics having different compositions. The patterned solid cosmetics 2 shown in FIG. 2 contains a plurality of types of solid cosmetics 1A and 1B having different compositions and different colors. More specifically, it contains a plurality of first solid cosmetics 1A and second solid cosmetics 1B having different compositions and different colors from each other.
As described above, when the patterned solid cosmetic 2 contains a plurality of types of solid cosmetics having different colors, the design becomes even more excellent. Note that the different colors mean that the impression of the colors is visually different for a normal user, and the colors are different due to the different compositions, and the transparency (transparent or translucent), etc. This includes giving the impression of different colors due to the different textures. For example, one having a color and the other being colorless or transparent (or translucent) is one of the modes in which the colors are different.
Further, when the patterned solid cosmetic 2 contains a plurality of types of solid cosmetics having different compositions, the degree of freedom of the material is improved, and it is easy to improve the usability, design, and the like. The patterned solid cosmetics 2 may contain three or more types of solid cosmetics having different compositions, and the solid cosmetics having the same composition may not exist among the contained solid cosmetics. Solid cosmetics having different compositions include those having the same composition as other ones, which differ only in the blended pigments, and those having the same blended pigments but different composition.

Further, in the patterned solid cosmetics of the present invention, as shown in FIG. 5, the independently arranged cosmetics 1C located on the pattern surface 2u and the other solid cosmetics 1N adjacent to the independently arranged cosmetics 1C are contained. It may form a sea-island structure having the other solid cosmetics 1N as a continuous phase. Even in that case, by having the boundary layer 22 containing powder at the boundary between the independently arranged cosmetic 1C and the solid cosmetic 1N, it is possible to form a pattern surface 2u having a pattern having excellent design. be.

Further, the patterned solid cosmetic of the present invention is the thickness direction adjacent solid cosmetic 1D adjacent to the independently arranged cosmetics 1A and 1B in the thickness direction Z, as in the patterned solid cosmetic 2 shown in FIG. 2 (c). In this case, it is preferable to provide a thickness direction boundary layer 23 containing powder at the boundary between each of the independently arranged cosmetics 1A and 1B and the thickness direction adjacent solid cosmetics 1D.
When the container 3 shown in FIG. 2C is transparent, or when the container 3 is taken out from the molding die 5 to be used as a product as shown in FIG. 6, a plurality of solid cosmetics having different colors and textures in the thickness direction. By arranging the above, a patterned solid cosmetic having a pattern on the surface 2w other than the main pattern surface 2u, that is, having a three-dimensional pattern surface, and having a more excellent design can be obtained.

The independently arranged cosmetics 1A, 1B, and 1C appearing on the pattern surface in the patterned solid cosmetic of the present invention are cases where the patterned solid cosmetic 2 is produced using the granular solid cosmetic with design and powder. From the viewpoint of ease of manufacture and the like, the average area in a plan view is preferably 0.5 mm ² or more ^{, more preferably 1 mm 2} or more, still more preferably 1.5 mm ² or more, and more preferably. Is 1500 mm ² or less ^{, more preferably 900 mm 2} or less, and even more preferably 400 mm ² or less. The independent arrangement cosmetic 1A, 1B, 1C is preferably an average area in plan view is a 0.5 mm ² or more 1500 mm ² or less, more preferably 1 mm ² or more 900 mm ² or less, more preferably 1.5 mm ² It is 400 mm ² or less. The "average area" is the area in the plan view of the independently arranged cosmetics when there is one independently arranged cosmetics, and when there are a plurality of independently arranged cosmetics, the plane of the independently arranged cosmetics. It means the arithmetic mean value of the area in the visual sense.

As the powder used for the boundary layers 22 and 23, particles having a size that effectively prevents fusion of solid cosmetics are preferably used. For example, when the size of the particles constituting the powder is represented by the _{volume cumulative particle size D 50} at the cumulative volume 50% by volume by the laser diffraction scattering type particle size distribution measurement method _{, D 50} is preferably 0.01 μm or more. , 0.1 μm or more, more preferably 1 μm or more. By using the powder of this size, it becomes easy to form the boundary layers 22 and 23 capable of effectively suppressing the fusion of the adjacent solid cosmetics 1. Further, D ₅₀ is preferably 500 μm or less, more preferably 300 μm or less, and further preferably 160 μm or less. By using a powder of this size, the powder can be easily adhered to the solid cosmetics 1, or the adhesiveness between the solid cosmetics 1 is ensured and the solid cosmetics 2 with a pattern can be integrated. improves. In particular, D ₅₀ is preferably 0.01 μm or more and 500 μm or less, more preferably 0.1 μm or more and 300 μm or less, and even more preferably 1 μm or more and 160 μm or less.

The powder has an oil absorption amount of 5 ml / 100 g or more from the viewpoint of facilitating the formation of boundary layers 22 and 23 capable of effectively suppressing the fusion of adjacent solid cosmetics 1 while ensuring the adhesiveness between them. It is more preferable, it is more preferably 15 ml / 100 g or more, and even more preferably 20 ml / 100 g or more. Further, the oil absorption amount of the powder is preferably 500 ml / 100 g or less, more preferably 400 ml / 100 g or less, from the viewpoint of preventing the oily component of the solid cosmetics 1 from being excessively absorbed by the powder. It is more preferably 350 ml / 100 g or less. The oil absorption is measured according to JIS K5101-13-1: 2004.

As the powders used for the boundary layers 22 and 23, the same powders generally used for cosmetics can be used without particular limitation. For example, silica, mica, synthetic fluorofrog pite, glass powder, barium sulfate, kaolin, bentonite, hectrite, zeolite, bismuth oxychloride, zirconium oxide, magnesium oxide, aluminum oxide, calcium sulfate, barium sulfate, magnesium sulfate, calcium carbonate. , Inorganic powders such as magnesium carbonate, and talc; silicone elastomers such as nylon, polyethylene, (vinyldimethicone / methicone silsesquioxane) crosspolymers, polymethylmethacrylate, lauroyl lysine, silk powder, cellulose powder, and various waxes. Constituent pigments such as organic powders such as powders: Mica, synthetic fluorofrog pite, glass, silica, alumina, talc and other plate-like powders, etc. The surface of which is titanium oxide, iron oxide, silicon oxide, dark blue, chromium oxide, Tin oxide, chromium hydroxide, gold, silver, carmine, those coated with colorants such as organic pigments such as Red No. 202 and Yellow No. 4, polyethylene terephthalate / polymethylmethacrylate laminated powder, polyethylene terephthalate / aluminum vapor deposition powder, etc. Bright pigments such as polyethylene terephthalate, gold-deposited laminated powder, etc., which are cut into arbitrary shapes: titanium oxide, zinc oxide, yellow iron oxide, red iron oxide, black iron oxide, dark blue, ultramarine blue, chromium oxide, hydroxide Metal oxides such as chromium; Metal complexes such as manganese violet and cobalt titanate; Further inorganic pigments such as carbon black; Red No. 3, Red No. 104, Red No. 106, Red No. 201, Red No. 202, Red No. 204, Red 205, Red 220, Red 226, Red 227, Red 228, Red 230, Red 401, Red 405, Red 505, Orange 203, Orange 204, Orange 205, Yellow 4 Synthetic organic pigments such as No. 5, Yellow No. 5, Yellow No. 401, Blue No. 1, Blue No. 404; and coloring pigments such as natural organic pigments such as β-carotene, caramel, and paprika pigment can be used. One of these powders can be used alone, or two or more of these powders can be used in combination.

The solid cosmetic 1 constituting the patterned solid cosmetic of the present invention is solid at room temperature (25 ° C.) and has a melting point of preferably 50 ° C. or higher, more preferably 55 ° C. or higher, and further. It is preferably 60 ° C. or higher. When the solid cosmetics 1 have a melting point equal to or higher than this temperature, fusion of adjacent solid cosmetics 1 (due to deterioration of design) can be effectively suppressed. The melting point of the solid cosmetic 1 is preferably 150 ° C. or lower, more preferably 120 ° C. or lower, and even more preferably 110 ° C. or lower. When the solid cosmetics 1 have a melting point equal to or lower than this temperature, the adhesiveness between the adjacent solid cosmetics 1 can be more easily secured, while the solid cosmetics 1 can be dissolved in a short time, and the production is easy. Can be transformed into. In particular, the melting point of the solid cosmetic 1 is preferably 50 ° C. or higher and 150 ° C. or lower, more preferably 55 ° C. or higher and 120 ° C. or lower, and even more preferably 60 ° C. or higher and 110 ° C. or lower.

The solid cosmetic 1 is usually composed of a composition containing a plurality of substances. In this case, the melting point of the solid cosmetics 1 is measured by any one of the first method, the second method, or the third method of the general test method in the quasi-drug raw material standard. Which method is adopted is largely selected by the melting point. If the melting point is as high as 80 ° C. or higher, the first method is used, if the melting point is lower than this, the second method is used, and the melting point is even lower. In some cases, the third method can be used.

The solid cosmetic 1 preferably has a continuous phase composed of one or more oily components. In some cases, the solid cosmetic 1 contains powder components such as pigments dispersed in a continuous phase.
As oily components, mineral waxes such as ozokerite and ceresin; petroleum waxes such as paraffin and microcrystalin wax; synthetic hydrocarbons such as Fisher Tropsch wax, polyethylene wax and synthetic wax; carnauba wax, candelilla wax, rice wax, etc. Plant-based waxes such as sunflower wax, hydrogenated jojoba oil, and mokuro; animal waxes such as beeswax and whale wax; waxes such as synthetic waxes such as silicone wax, synthetic beeswax, and synthetic mokuro; , Inulin stearate, 12-hydroxystearic acid, dibutyllauroylglutamide, dibutylethylhexanoylglutamide, polyamide resin and other oil-based gelling agents; Vaseline, vinyl leather wax, hexa (bechenic acid / benzoic acid / ethylhexanoic acid) Dipentaerythrityl, cholesteryl hydroxystearate, tetra (hydroxystearic acid / isostearic acid) dipentaerythrityl, hydrogenated palm oil, dipentaerythrityl hexahydroxystearate, tri (caprylic acid / capric acid / myristic acid / stearic acid) glyceryl, hexa (hydroxystearic acid) / Stearic acid / stearic acid) Dipentaerythrityl, phytosteryl oleate, (ethylhexanoic acid / stearic acid / adipate) glyceryl, di (octyldodecyl / phytosteryl / behenyl) lauroyl glutamate, dimer dilinoleic acid (phytosteryl / isostearyl / cetyl /) Stearyl / behenyl), dimer dilinoleyl bis (behenyl / isostearyl / phytosteryl), hard lanolin, reduced lanolin, bisdiglyceryl polyacyl adipate-2, etc. paste oils; liquid paraffin, light liquid isoparaffin, heavy Quality Liquid isoparaffin, mineral oil, squalane, α-olefin oligomer, polyisobutylene, polybutene, hydrogenated polyisobutene, hydrogenated polydecene and other linear or branched hydrocarbon oils; isononyl isononanoate, isodesyl isononanoate, isotolideyl isononanoate, isononan Tricyclodecanemethyl acid, ethyl isostearate, isobutyl isostearate, isopropyl isostearate, 2-hexyldecyl isostearate, di2-hetylhexyl succinate, bisethoxydiglycol succinate, hexyl laurate, di (ka) Prilic acid / capric acid) Propanediol, neopentyl glycol diisononanoate, neopentyl glycol dicaprate, glyceryl diisostearate, polyglyceryl diisostearate, propanediol diisostearate, trimethylolpropane triisostearate, glyceryl triisostearate, diisostearate Glyceryl, diglyceryl tetraisostearate, diisostearyl malate, octyldodecyl malate, glycerin fatty acid ester, jojoba oil, di lauroyl glutamate (phytosteryl / octyldodecyl), octyldodecyl myristate, isopropyl myristate, 2-ethylhexyl palmitate , Isopropyl palmitate, Cetyl 2-ethylhexanoate, Trimethylolpropane tri2-hetylhexanoate, Glyceryl tri2-ethylhexanoate, Octyldodecyl myristate, 2-hexyldecyl myristate, 2-hexyldecyl 2-ethylhexanoate , Di2-ethylhexanoate neopentylglycol, hydroxystearate ethylhexyl, tri (caprylic acid / capric acid) glyceryl, trioctanoate glyceryl, dioctanoate neopentylglycol, trimerite tridecyl, tetraisostearate dipentaerythrityl, tetraisostearate penta Ester oils such as erythrite, octyl methoxycinnamate, 2-ethylhexyl paramethoxysilicate, diisopropyl dimerate, propylene carbonate; higher alcohols such as lauryl alcohol, oleyl alcohol, isostearyl alcohol, behenyl alcohol, octyldodecanol; dimethylpoly Silicone oils such as siloxane, dimethylcyclopolysiloxane, methylphenylpolysiloxane, trimethylpentaphenyltrisiloxane, methylhydrogenpolysiloxane, higher alcohol-modified organopolysiloxane; fluoropolyether, perfluoroalkyl ether silicone, fluorine-modified silicone, etc. Fluorine oil; phenoxyethanol and the like can be mentioned. These oily components may be used alone or in combination of two or more.

The solid cosmetics 1 (independently arranged cosmetics and other solid cosmetics) preferably contain 40% by mass or more of an oily component from the viewpoint of usability of the patterned solid cosmetics 2. From this viewpoint, the solid cosmetic 1 contains an oily component in an amount of 50% by mass or more, more preferably 55% by mass or more. On the other hand, when the solid cosmetics 1 contain 40% by mass or more of an oily component, the adjacent solid cosmetics 1 are likely to adhere to each other, but are easily fused with each other. However, in the present invention, by forming the boundary layers 22 and 23 containing the powder 11 at the boundary between the solid cosmetics 1, the solid cosmetics 1 are irregularly mixed at the boundary surface with each other. Is prevented. From the viewpoint of adjusting the color, texture, or usability, the solid cosmetic 1 contains an oily component of preferably 100% by mass or less, more preferably 99% by mass or less, and even more preferably 98% by mass or less. In particular, the solid cosmetic 1 contains an oily component preferably 40% by mass or more and 100% by mass or less, more preferably 50% by mass or more and 99% by mass or less, and further preferably 55% by mass or more and 98% by mass or less.

It is preferable that the solid cosmetics 1 (independently arranged cosmetics and other solid cosmetics) contain an oily component (for example, the wax) that is solid at 20 ° C. from the viewpoint of enhancing the shape retention of the solid cosmetics 1. The solid cosmetic 1 preferably contains 3% by mass or more of an oily component that is solid at 20 ° C. from the viewpoint of shape retention, and contains 30% by mass or less of an oily component that is solid at 20 ° C. It is preferable from the viewpoint of. Further, from the viewpoint that the solid cosmetics 1 contain an oily component (liquid component) that is liquid at 20 ° C., the adhesiveness between the solid cosmetics 1 is improved and the usability of the patterned solid cosmetics 2 is enhanced. ,preferable. From this viewpoint, the solid cosmetic 1 contains an oily component that is liquid at 20 ° C., preferably 18% by mass or more, more preferably 25% by mass or more, and even more preferably 35% by mass or more. From the viewpoint of enhancing the usability of the patterned solid cosmetics 2, the solid cosmetics 1 contains an oily component that is liquid at 20 ° C., preferably 97% by mass or less, more preferably 95% by mass or less, still more preferably 93% by mass or less. include. In particular, the solid cosmetic 1 contains an oily component that is liquid at 20 ° C., preferably 18% by mass or more and 97% by mass or less, more preferably 25% by mass or more and 95% by mass or less, and further preferably 35% by mass or more and 93% by mass or less. include.

Whether or not the oily component is liquid at 20 ° C. can be determined by the contents described in the safety data sheet (SDS) / physical state of each component. When the solid cosmetic 1 contains an oily component that is liquid at 20 ° C. in the above range, the oily component tends to be present on the surface of the solid cosmetics 1, and as a result, the solid cosmetics 1 There is a concern that it will be easier for them to merge. However, in the patterned solid cosmetics 2 of the present invention, since the boundary layers 22 and 23 containing the powder 11 are formed between the solid cosmetics 1, the liquid oily component is present on the surface of the solid cosmetics 1. Even if they are present, it is possible to prevent the solid cosmetics 1 from being irregularly mixed with each other at the boundary surface with each other. As a result, an appearance having a mosaic tile-like pattern and excellent design can be obtained.

As the powder component contained in the core portion of the solid cosmetics 1 excluding the boundary layer, various types conventionally used for cosmetics can be used without particular limitation, for example, coloring pigments, bright pigments and bright pigments. Pigments such as extender pigments can be used. The powder component may be an inorganic powder or an organic powder. Inorganic powder and organic powder may be used in combination. The shape of the particles constituting the powder component is not particularly limited, and may be, for example, spherical, polyhedral, flake, spindle-shaped, fibrous, amorphous, or a combination thereof.

The hardness of the solid cosmetics 1 (independently arranged cosmetics and other solid cosmetics) is one of the factors that affect the usability of the patterned solid cosmetics 2 of the present invention. From this point of view, and from the viewpoint of improving the adhesiveness between the solid cosmetics 1, the hardness of the solid cosmetics 1 is preferably 500 g or less, more preferably 350 g or less, and further preferably 250 g or less. preferable. On the other hand, by setting the hardness of the solid cosmetics 1 to preferably 0.5 g or more, more preferably 5 g or more, still more preferably 15 g or more, unintended fusion of the solid cosmetics 1 can be suppressed. From these viewpoints, the hardness of the solid cosmetic 1 is preferably 0.5 g or more and 500 g or less, more preferably 5 g or more and 350 g or less, and further preferably 15 g or more and 250 g or less. The hardness of the solid cosmetics 1 can be equated with the hardness of the core portion of the solid cosmetics 1 excluding the boundary layers 22 and 23. The hardness of the core is determined by heating and dissolving the raw material (composition) at 115 ° C, filling it in a resin ointment jar (diameter 30 mm, height 14 mm) to a height of 10 mm, and then at 20 ° C. After cooling and solidifying for 2 hours and allowing to stand at 30 ° C. for 6 hours or more, a jig with a diameter of φ2 mm is used to insert the jig into a jig at a speed of 2 mm / s to a depth of 2 mm using a rheometer manufactured by Leotech. It can be measured by reading the maximum value when it is made to run.

From the viewpoint of strengthening the adhesion between the solid cosmetics 1, the independently arranged cosmetics or other solid cosmetics adjacent to each other via the boundary layers 22 and 23 between the particles constituting the powder in the boundary layers 22 and 23. It is preferable that a part of the fee is included. As a result, the adhesion between the adjacent solid cosmetics 1 is enhanced, and the shape retention as the patterned solid cosmetics 2 is improved. In particular, it is preferable that the oily component of the solid cosmetics 1 appropriately penetrates between the particles. For example, optical microscope observation can be used to confirm whether or not such a state is obtained.

Next, a suitable method for producing the patterned solid cosmetics of the present invention will be described.
The production method of the present invention includes a joining step of joining a granular solid cosmetic as a granular raw material of an independently arranged cosmetic and a raw material of another solid cosmetic. Further, in the joining step, the granular raw material of the independently arranged cosmetic and the other solid are in a state where the powder is attached to the surface of at least one of the granular raw material of the independently arranged cosmetic and the raw material of the other solid cosmetic. An arrangement step in which the raw materials of the cosmetics are adjacent to each other, and a softening step of softening at least one of the granular raw material of the independently arranged cosmetics and the raw materials of other solid cosmetics before, after, or at the same time as the arrangement step. Be prepared.
As an example of the placement process in the joining process, the granular raw material of the independently placed cosmetic and other solid cosmetics are in a state where the powder is attached to both the granular raw material of the independently placed cosmetic and the raw material of other solid cosmetics. An example in which the raw materials of the above are adjacent to each other will be described.
First, as a preliminary step, a granular solid cosmetic with powder to which powder is attached to a granular raw material of an independently arranged cosmetic and a raw material of another solid cosmetic is produced, for example, as follows.
The manufacturing process of the granular solid cosmetics with powder may include a step of dividing the raw material of the solid cosmetics 1 to be produced into a plurality of granules. "Division" means dividing the bulk body of the raw material of the solid cosmetics 1 into a plurality of smaller units. The size of the granules obtained by dividing the raw material of the cosmetic is substantially the same as the size of the solid cosmetic 1. That is, the size of the granules is preferably in the range of the average projected area of the solid cosmetics 1 in terms of the average projected area when the granules are placed on a flat surface. The "average projected area" refers to 10 or more granules (or solid cosmetics) in a state in which the granules (or solid cosmetics) are placed in the most stable state on a horizontal plane. It means the arithmetic mean value of the area projected on the horizontal plane.

Various methods can be adopted to divide the raw materials of cosmetics. Examples of the division method include the following (a) to (c).
(A) When the raw material is a solid lump, the lump raw material can be divided into granules using a known crusher or the like.
(B) When the raw material is softened, the solid raw material can be softened by heating, for example, and the softened raw material can be divided by a predetermined means.
(C) When the raw material is liquefiable, the solid raw material can be liquefied as well as softened, and the liquefied raw material can be divided into a plurality of droplets. That is, in the present invention, "liquefaction" is an aspect of "softening".

When the above-mentioned method (c) is adopted, the following (c1) to (c3) can be mentioned as specific methods of liquefaction.
(C1) When the raw material of the cosmetic is meltable by heat, the raw material is heated to melt and liquefy.
(C2) When the raw material of the cosmetic is soluble in a solvent, the raw material is dissolved in a solvent, for example, a volatile organic solvent to prepare a solution.
(C3) When the crystal structure of the raw material of cosmetics is changed by an external force and can be liquefied, for example, a card house structure, a network structure, an alkyl chain crystal structure, or an oily solid having hydrogen bonds between molecules. In the case, the crystal structure is destroyed and liquefied by applying an external force by kneading or the like.

Of the above-mentioned methods (a) to (c), when the raw material is, for example, a solid material containing an oil agent, it is convenient to adopt the above-mentioned method (b) or (c). When the method (c) is adopted, it is convenient to adopt the method (c1) among the above-mentioned (c1) to (c3).

A plurality of granules can be obtained by dividing the raw material of the cosmetic by adopting the above-mentioned method. The granules can be solid or liquid. The present production method includes a step of adhering powder to the surface of the granules. 3A and 3B show a step of adhering the powder 11 to the granular material 10.

As shown in FIG. 3A, the container 12 is filled with the powder 11. The powder 11 is stirred by a stirring means (stirring device) 13 such as an anchor blade. Immediately above the powder 11, a partitioning device 14 for raw materials for cosmetics is arranged. The dividing device 14 is, for example, a device for crushing a solid raw material for cosmetics, a device for softening the solid raw material for cosmetics and dividing the softened raw material, or a device for melting and liquefying the solid raw material for cosmetics by heating. It can be a device that divides the raw material into droplets. The raw material of the cosmetic material divided into the plurality of granular materials 10 by the dividing device 14 is supplied into the powder 11 in a fluid state by the stirring means 13.

As shown in FIG. 3B, stirring of the powder 11 is continued even after the granular material 10 is supplied to the powder 11. Dispersion of the granular material 10 into the powder is promoted by stirring the powder 11, and the powder 11 adheres to the surface of the granular material 10.

When the method (a) described above is used, the granular material 10 is cured at the time when the powder 11 is attached to the surface of the granular material 10.
When the method (b) or (c) described above is used, the granular material 10 may or may not be cured at the time when the powder 11 is attached to the surface of the granular material 10. In other words, in any step after the raw material of the cosmetic is softened and divided, the granules 10 obtained by the division can be cured. "Curing" in the case of softening the raw material of cosmetics means that the softened raw material of cosmetics returns to the hardness before softening. Therefore, it is one aspect of "curing" that the solid raw material of the cosmetic is melted and liquefied by heating, and the liquefied raw material is divided into droplets to "solidify" the granules.

The means for curing the granular material 10 may be appropriately selected according to the state of the granular material 10.
For example, when the raw material of cosmetics is softened by heating and then divided to obtain granules 10, the granules 10 can be cured by cooling the granules 10.
Even when the raw material of cosmetics is melted and liquefied by heating and the liquefied raw material is divided into droplets to obtain granules, the granular body 10 is cured by cooling the granular body 10 (solidification). It is possible to let).
When the raw material of cosmetics is dissolved in, for example, a volatile organic solvent to form a solution, and the solution is divided into droplets to obtain granules 10, the volatile organic solvent is volatilized and removed from the granules 10. By doing so, it is possible to leave the solid content and cure the granular material 10.
When the raw material of cosmetics is, for example, a card house structure, a network structure, an alkyl chain crystal structure, or an oily solid having hydrogen bonds between molecules, it flows by applying an external force such as kneading to the raw material. It is possible to cure the granular material 10 which is a body by softening it by heating, melting it, liquefying it, and then cooling it.

The above-mentioned core portion is obtained by curing the granular body 10. That is, when the method (b) or (c) described above is used, the granular material 10 is obtained by dividing the raw material of the cosmetic and is in a state before being cured. Therefore, the granular material 10 also includes those in the state of a molten liquid or a solution.
In the case of using the method (a) described above, the granular material 10 is obtained by dividing the raw material of the cosmetic and is in a cured state.

The timing of curing the granular material 10 and the timing of adhering the powder 11 to the surface of the granular material 10 can be appropriately set according to the properties of the granular material 10 and the like. For example, (i) the granular material 10 can be cured after the powder 11 is attached to the surface of the granular material 10 in the uncured state. Alternatively, (ii) after the granular material 10 is cured, the powder 11 can be attached to the surface of the granular material 10. Alternatively, the granular material 10 can be cured while adhering the powder 11 to the surface of the (iii) uncured granular material 10.

If the aspect (i) or (iii) of the above-described aspects (i) to (iii) is adopted, the powder 11 easily enters the inside of the granular material 10, so that the powder 11 is transferred to the granular material 10. It is possible to adhere relatively firmly. On the other hand, when the aspect (ii) is adopted, it becomes difficult for the powder 11 to enter the inside of the granular material 10, so that the powder 11 adheres to the granular material 10 relatively weakly.

By the above steps, the powder 11 can be attached to the surface of the granular material 10. When the method (a) described above is used, the granular solid cosmetics 1'with powder can be obtained by adhering the powder 11 to the surface of the granular material 10. When the method (b) or (c) described above is used, the powder 11 is adhered to the surface of the granular material 10 and the granular material 10 is cured to obtain the granular solid cosmetic 1'with the powder. Be done. Once the granular solid cosmetics 1'are obtained, the solid cosmetics can be cooled as an additional step. By cooling, the adhesion of powder can be made more reliable. The cooling may be, for example, natural cooling or forced cooling.
In the case of natural cooling, a cosmetic having powder adhered to the surface of the core portion, that is, a solid cosmetic may be allowed to stand at room temperature.
In the case of forced cooling, gas may be sprayed on the solid cosmetics, the solid cosmetics may be placed in a refrigerator, or the solid cosmetics may be brought into contact with the refrigerant.

After the powder 11 is attached to the surface of the granular material 10, the powder 11 that is not adhered to the surface of the core portion can be removed before, after, or at the same time as cooling the solid cosmetic. .. The powder that is not adhered to the surface of the core portion is weakly adhered to the core portion to the extent that it falls off from the core portion due to an external force such as vibration applied when the solid cosmetic is conveyed, or is completely adhered to the core portion. It is a powder that is not fixed.

An example of the powder removing step is shown in FIGS. 3 (c) and 3 (d). Specifically, as shown in FIG. 3C, a receiving container 15 having an opening at the upper side is prepared, and the opening of the receiving container 15 is covered with the filter member 16. As the filter member 16, a sieve having a mesh size that allows the powder 11 to pass through but does not allow the solid cosmetics 1 to pass through can be used. A powder 11 in which a plurality of solid cosmetics 1 are dispersed is supplied onto the filter member 16 under a state in which the filter member 16 is received and installed in the container 15. As a result, sieving by the filter member 16 is performed, the solid cosmetic 1 remains on the filter member 16 as shown in FIG. 1D, and the powder 11 passes through the filter member 16 and enters the receiving container 15. Collected. In this way, the powder 11 is removed.

As the solid cosmetic, one obtained by dividing as described above may not be used as it is, but one molded by using a mold may be used. For example, by preparing a mold in which powder exists on the inner surface, supplying a softened solid cosmetic raw material into the mold and curing the mold, a granular solid having a desired shape along the shape of the mold is obtained. Cosmetics may be formed. In this case, the powder on the inner surface of the mold adheres to the surface of the granular solid cosmetic.

As shown in FIG. 4, the granular solid cosmetics 1'with powder obtained by the above method is used as a granular raw material for the independently arranged cosmetics. Further, the granular solid cosmetics 1'with powder similarly produced using the same bulk body or another bulk body having a different composition or the same composition may be adjacent to the independently arranged cosmetics. Used as a solid cosmetic.
Then, as an arrangement step, the granular raw material of the independently arranged cosmetic and the raw material of the other solid cosmetic are housed in a heatable container 3 or a mold 5, and then, as a softening step, they are subjected to an appropriate heating device. Is heated by. The heating device 4 shown in FIG. 4 has a built-in heating wire heater, for example, and can heat to a predetermined temperature.

The granular raw material of the independently placed cosmetic and the raw material of the other solid cosmetic are heated to a predetermined temperature and pressed against each other in a softened state, or heated to a predetermined temperature and one or both are heated. By contacting each other in a molten state, they are joined and integrated. As a result, the patterned solid cosmetic 2 is obtained. The step of softening one or the other of the above may be performed by heating both the granular raw material of the independently arranged cosmetic and the raw material of the other solid cosmetic, or by heating either one. You may go.

The patterned solid cosmetic shown in FIG. 5 is obtained, for example, in a state in which a non-granular bulk body is contained in a heatable container 3 or a mold 5 and softened as a raw material for the other solid cosmetic. It is obtained by placing a granular raw material of an independently arranged cosmetic and further heating it. In addition, instead of adhering the powder to the surface of the granular raw material of the independently arranged cosmetic, or together with this, the powder may be adhered to the surface of the bulk body which is not granulated.

As shown in FIG. 6, it is also possible to produce a patterned solid cosmetic having a desired plan view shape and a desired three-dimensional shape by using a mold 5 or a container having a recess having a desired shape. Further, a patterned solid cosmetic having a desired three-dimensional shape may be produced by using a plurality of split molds that form recesses inside by combining them. In this case, for example, if the powder is present on the inner surface of the recess before supplying the granular raw material of the independently arranged cosmetic, the patterned solid cosmetic is molded along the inner surface of the recess. Powder adheres to the surface of. This makes it easier to take out the patterned solid cosmetic from the recess, or suppresses the patterned solid cosmetic from binding to other substances.

In order to more effectively prevent irregular melting and mixing of solid cosmetics, it is sufficient to control the degree of softening and the degree of melting of the raw materials of the solid cosmetics. From the viewpoint of preventing irregular melting and mixing of the solid cosmetics, the heating temperature of the raw material of the solid cosmetics is preferably 5 ° C. to 50 ° C. higher than the melting point of the solid cosmetics, and is 10 ° C. It is more preferable that the temperature is about 40 ° C. higher.

According to the production method of the present embodiment, the powder adhered to the surface of the solid cosmetic is used to easily form a boundary layer containing the powder at the boundary between the solid cosmetics in the patterned solid cosmetic. This makes it possible to efficiently produce a patterned solid cosmetic having the above-mentioned mosaic tile-like pattern surface.
In the placement step of the joining process, each solid cosmetic is placed while forming a boundary layer containing the powder easily by adjoining the raw materials with the powder adhering to the surface of the raw material of the solid cosmetic. It is possible to form an arbitrary pattern surface. Further, the pattern surface can be easily changed by changing the arrangement of each solid cosmetic, and the patterned solid cosmetic can be easily produced.
In the softening step of the joining process, one of the raw materials is softened with the powder adhering to the surface of the raw material of the solid cosmetic, so that the raw materials can be easily formed while forming a boundary layer containing the powder. Can be joined. When the raw material is heated, the raw material can be easily softened.
Further, at least the placement step of the joining step is performed by accommodating the granular raw material of the independently placed cosmetic and the raw material of other solid cosmetics in a mold or a container as described above, in terms of moldability and desired. It is preferable from the viewpoint of processability into a shape.
As described above, the softening step can be carried out while maintaining the state in which the granular raw material of the independently arranged cosmetic and the raw material of other solid cosmetics are contained in the mold or the container, so that the moldability and the desired shape can be obtained. It is preferable from the viewpoint of workability and the like.
The softening step may be performed before the granular raw material of the independently arranged cosmetic and the raw material of other solid cosmetics are contained in the mold or the container. By softening the raw material in advance before the storage in this way, it is possible to facilitate the storage of the raw material in the mold or the container.

The solid cosmetic with a pattern of the present invention is attached to an application means such as a makeup brush, a cosmetic puff, or a finger, and is used by attaching to any part such as lips, eyelids, cheeks, palm, and back using the application means. It can also be used directly on the target site without using the coating means. When the patterned solid cosmetics are used by the application means, one solid cosmetic may be wiped off by the application means and applied to the skin, or if desired, two or more solid cosmetics may be combined. It may be wiped off and applied to the skin. For the purpose of successfully and efficiently performing the above-mentioned makeup method, a container capable of containing the patterned solid cosmetics of the present invention and the patterned solid cosmetics, and a container for applying the solid cosmetics to the skin. It is preferable to use a cosmetic set having an application tool.

Although the present invention has been described above based on the preferred embodiment thereof, the present invention is not limited to the above-described embodiment. For example, the pattern surface 2u of the patterned solid cosmetic is not limited to a flat surface, but may be a surface having a convex curved surface or unevenness, a surface having a portion protruding into a desired shape, or the like. Further, in the patterned solid cosmetics, the adjacent solid cosmetics 1 may not be in close contact with each other without a gap, and the adjacent solid cosmetics 1 may be in contact with each other with a partial gap. ..
Further, in the above-described embodiment, the anchor blade is exemplified as the stirring means 13 for the powder 11, but a stirring means other than the anchor blade may be used as long as the shape of the granular material 10 in the powder 11 is not impaired. Further, the powder 11 may be agitated by applying vibration. Further, the powder 11 may be adhered to the surface of the raw material of the solid cosmetic by spraying the powder 11. In the above-described embodiment, the sieve is exemplified as the filter member 16 used for separating the granular solid cosmetics 1'and the powder 11, but the granular solid cosmetics 1'and the powder are used by using a filter member other than the sieve. It may be separated from the body 11.

1 Solid cosmetics 2 Patterned solid cosmetics 2u Patterned surfaces 1A, 1B, 1C Independently arranged cosmetics 22 Boundary layer 23 Thickness direction boundary layer 10 Raw material (granular body) of solid cosmetics
11 Powder 12 Container 13 Stirring means

Claims (20)

Contains multiple solid cosmetics
As the solid cosmetic, at least one independently arranged cosmetic is adjacent to the other solid cosmetic in a plan view, and powder is placed at the boundary between the independently arranged cosmetic and the other solid cosmetic. A patterned solid cosmetic with a including border layer. The patterned solid cosmetic according to claim 1, wherein the other solid cosmetic is a plurality of solid cosmetics adjacent to the independently arranged cosmetic. The patterned solid cosmetic according to claim 1, wherein the independently arranged cosmetic and the other solid cosmetic form a sea-island structure having the other solid cosmetic as a continuous phase. It has a thickness-direction adjacent solid cosmetic that is adjacent to the independently-arranged cosmetic in the thickness direction of the patterned solid cosmetic, and contains powder at the boundary between the independently-arranged cosmetic and the thickness-direction adjacent solid cosmetic. The patterned solid cosmetic according to any one of claims 1 to 3, comprising a thickness direction boundary layer. The patterned solid cosmetic according to any one of claims 1 to 4, wherein the average area of the independently arranged cosmetic in a plan view is 0.5 mm ² or more and 1500 mm ^{2 or less.} The patterned solid cosmetic according to any one of claims 1 to 5, _{wherein the particle size D 50} of the particles constituting the powder in the boundary layer is 0.01 μm or more and 500 μm or less. The pattern according to any one of claims 1 to 6, wherein at least a part of the independently arranged cosmetic or the other solid cosmetic is contained between the particles constituting the powder in the boundary layer. Solid cosmetics. The patterned solid cosmetic according to any one of claims 1 to 7, wherein the independently arranged cosmetic contains a solid cosmetic having a color different from that of the other solid cosmetic. The patterned solid cosmetic according to any one of claims 1 to 8, wherein the independently arranged cosmetic and the other solid cosmetic contain 40% by mass or more of an oily component. The patterned solid cosmetic according to any one of claims 1 to 9, wherein the independently arranged cosmetic and the other solid cosmetic contain 18% by mass or more of an oily component that is liquid at 20 ° C. The patterned solid cosmetic according to any one of claims 1 to 10, wherein the independently arranged cosmetic and the other solid cosmetic have a melting point of 50 ° C. or higher. The patterned solid according to any one of claims 1 to 11, wherein the amount of oil absorbed by the powder contained in the boundary layer in accordance with JIS K5101-13-1: 2004 is 5 ml / 100 g or more and 500 ml / 100 g or less. Cosmetics. The patterned solid cosmetic according to any one of claims 1 to 12, wherein the hardness of the independently arranged cosmetic and the other solid cosmetic is 0.5 g or more and 500 g or less. The patterned solid cosmetic according to any one of claims 1 to 13, wherein the independently arranged cosmetic contains a solid cosmetic having a composition different from that of the other solid cosmetic. The method for producing a solid cosmetic with a pattern according to any one of claims 1 to 14.
It comprises a joining step of joining the granular raw material of the independently arranged cosmetic and the raw material of the other solid cosmetic.
The joining step is
In a state where the powder is attached to at least one surface of the granular raw material of the independently arranged cosmetic and the raw material of the other solid cosmetic, the granular raw material of the independently arranged cosmetic and the other solid cosmetic A softening step of softening at least one of the granular raw material of the independently arranged cosmetic and the raw material of the other solid cosmetic is performed before, after, or at the same time as the arranging step in which the raw materials of the above are adjacent to each other. A method for producing a solid cosmetic with a pattern. In the softening step, the granular raw material of the independently arranged cosmetic is in a state where the powder is adhered to at least one surface of the granular raw material of the independently arranged cosmetic and the raw material of the other solid cosmetic. The method for producing a patterned solid cosmetic according to claim 15, wherein at least one of the raw materials of the other solid cosmetic is softened. The method for producing a patterned solid cosmetic according to claim 15 or 16, wherein the softening step is performed by heating at least one of the granular raw material of the independently arranged cosmetic and the raw material of the other solid cosmetic. Any one of claims 15 to 17, wherein at least the arrangement step of the joining step is carried out by accommodating the granular raw material of the independently arranged cosmetic and the raw material of the other solid cosmetic in a mold or a container. The method for producing a solid cosmetic with a pattern described in 1. The patterned solid cosmetic according to claim 18, wherein the softening step is performed while maintaining a state in which the granular raw material of the independently arranged cosmetic and the raw material of the other solid cosmetic are contained in the mold or the container. Manufacturing method. The method for producing a patterned solid cosmetic according to claim 18, wherein the softening step is performed before the granular raw material of the independently arranged cosmetic and the raw material of the other solid cosmetic are stored in the mold or the container. ..

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