Solid cosmetic and method for producing the same

Abstract

To provide a solid cosmetic comprising a water-in-oil solid composition and an oil-based solid composition that exhibits superior shock resistance and a pleasant hydration feel, and a method for producing the same.SOLUTION: A solid cosmetic comprises the following compositions (A) and (B): (A) a water-in-oil solid composition and (B) an oil-based solid composition, wherein the melting point of the composition (A) is less than 100°C, the melting point of the composition (B) is 100°C or more, the filling temperature of the compositions (A) and (B) is from 65°C to 95°C, and the difference in filling temperature between the compositions (A) and (B) is less than 20°C.SELECTED DRAWING: Figure 1

Description

Technical Field

[0001] The present invention relates to solid cosmetics and a method for producing the same.

Background Art

[0002] Patent Document 1 discloses an oil-in-water type solid cosmetic characterized in that oil-phase droplets and water-phase droplets containing an ultraviolet absorber are separately dispersed, apart from the continuous-phase oil of the oil-in-water type solid cosmetic, with the object of improving stability. Patent Document 2 discloses a stick-shaped emulsified composition having an ultraviolet protection effect, excellent stability without causing deterioration such as separation or strength reduction even after long-term storage, and excellent usability. Further, Patent Document 3 discloses a method for producing an oil-based solid cosmetic by multi-color filling.

Prior Art Documents

Patent Documents

[0003]

Patent Document 1

Patent Document 2

Patent Document 3

Summary of the Invention

Problems to be Solved by the Invention

[0004] However, the cosmetics disclosed in Patent Documents 1 to 3 were not excellent in impact resistance and moisturizing feeling.

[0005] Therefore, an object of the present invention is to provide a solid cosmetic excellent in impact resistance and moisturizing feeling and a method for producing the same.

Means for Solving the Problems

[0006] For this purpose, the present invention provides the following compositions (A) and (B); (A) Water-in-oil solid composition (B) Oil-based solid composition containing the melting temperature of the composition (A) is less than 100°C, the melting temperature of the composition (B) is 100°C or higher, the filling temperature of the compositions (A) and (B) is 65 - 95°C, and the difference in the filling temperatures of the compositions (A) and (B) is less than 20°C, which is a solid cosmetic.

[0007] Furthermore, the present invention dissolves (A) the water-in-oil solid composition at a temperature less than 100°C, dissolves (B) the oil-based solid composition at a temperature of 100°C or higher, and fills the dissolved (A) water-in-oil solid composition and (B) oil-based solid composition into a container at respective temperatures of 65 - 95°C and with a temperature difference of less than 20°C, which is a method for manufacturing a solid cosmetic.

[0008] Furthermore, the present invention the following compositions (A) and (B); (A) A water-in-oil solid composition containing a first solid oil (B) An oil-based solid composition containing a second solid oil containing forming a pattern in which the compositions (A) and (B) are unevenly mixed, and the second solid oil has a higher melting point than the first solid oil, which is a solid cosmetic. [Advantages of the Invention]

[0009] According to the present invention, it is possible to provide a solid cosmetic excellent in impact resistance and moisturizing feeling and a method for manufacturing the same. [Brief Description of the Drawings]

[0010]

Figure 1

[0011] Hereinafter, embodiments of the present invention will be described with reference to the accompanying drawings. <Cosmetic 1> FIG. 1 is a schematic configuration diagram of Cosmetic 1 in the present embodiment. First, with reference to FIG. 1, the schematic configuration of Cosmetic 1 in the present embodiment will be described.

[0012] As shown in FIG. 1, the cosmetic 1 of the present disclosure includes a cylindrical container body 2, a sleeve 3 rotatably provided in the circumferential direction inside the container body 2, a lid body 4 attached to the sleeve 3, and a stick-shaped cosmetic material 5 accommodated in the sleeve 3. The cosmetic material 5 is provided so as to be able to be lifted or lowered by rotating the sleeve 3 and the container body 2 relative to each other. Further, the cosmetic material 5 is a stick-shaped solid cosmetic material. More specifically, the cosmetic material 5 is a ceramide stick cosmetic material.

[0013] Here, the ceramide stick cosmetic material is a base makeup product with skin care elements. This ceramide stick is excellent in portability due to its shape, and is evaluated in the market in terms of, for example, being easy to touch up makeup when going out. On the other hand, conventional ceramide stick cosmetic materials are mainly water-in-oil type or oily. However, water-in-oil type ones have insufficient strength and temperature stability due to restrictions on filling conditions, and in particular, there are problems in that breakage occurs due to impact during carrying, and the side surface collapses in a high temperature environment. In addition, oily ones have the problem that it is difficult to blend a moisturizing agent, and they lack freshness and a moisturizing feeling during use.

[0014] The cosmetic material 5 in the present embodiment includes a water-in-oil type solid composition 51 and an oily solid composition 53. By including both the water-in-oil type solid composition 51 and the oily solid composition 53, the cosmetic material 5 has excellent performance in terms of impact resistance and moisturizing feeling.

[0015] In addition, the cosmetic 5 is formed in a state where the water-in-oil solid composition 51 and the oil-based solid composition 53 are moderately mixed. Here, "moderately mixed" means that the water-in-oil solid composition 51 and the oil-based solid composition 53 are not completely mixed to form a more uniform composition, but rather a state where the water-in-oil solid composition 51 and the oil-based solid composition 53 are mixed while leaving their respective layers. Here, as the state of being mixed while leaving their respective layers, it is not necessary for the boundary of each layer to be clear, and a so-called gradation with a difference in shade according to the position at the boundary may be formed. Additionally, "moderately mixed" refers to an incomplete mixing state in which the water-in-oil solid composition 51 and the oil-based solid composition 53 are mixed with each other while retaining their respective physical properties.

[0016] In the illustrated example of the cosmetic 5, the water-in-oil solid composition 51 and the oil-based solid composition 53 have different colors from each other. And the water-in-oil solid composition 51 and the oil-based solid composition 53 form a non-uniformly mixed pattern. To explain further, the water-in-oil solid composition 51 and the oil-based solid composition 53, in appearance, are composed of compositions of different colors that intersect in a layered or streaky manner and are irregularly intertwined with each other to form a pattern. This pattern is, for example, a marbled, striped, or cloud-like shading pattern. Due to this, the cosmetic 5 is excellent in aesthetic appeal.

[0017] Incidentally, the water-in-oil solid composition 51 and the oil-based solid composition 53 have different colors from each other, for example, by each containing a different colorant. Here, "having different colors from each other" includes, in addition to (or instead of) the colors themselves being different, differences in appearance to the extent that they are visually perceived as different, such as a sense of transparency. Also, the water-in-oil solid composition 51 and the oil-based solid composition 53 do not necessarily have different colors from each other. That is, the water-in-oil solid composition 51 and the oil-based solid composition 53 may be formed of the same color.

[0018] Also, as will be described in detail later, the water-in-oil solid composition 51 and the oil-based solid composition 53 contain a solid oil that is common to each component, more specifically, a common wax. This makes the water-in-oil solid composition 51 and the oil-based solid composition 53 more compatible with each other. To explain further, the water-in-oil solid composition 51 and the oil-based solid composition 53 have improved compatibility by containing a common wax. Also, the water-in-oil solid composition 51 and the oil-based solid composition 53 have improved temperature stability by containing a common wax. Note that the water-in-oil solid composition 51 and the oil-based solid composition 53 may contain a plurality of types of waxes in common, which can further improve the ease of compatibility. Incidentally, it is not essential for the water-in-oil solid composition 51 and the oil-based solid composition 53 to contain a common wax. That is, the water-in-oil solid composition 51 and the oil-based solid composition 53 do not necessarily have to contain a common wax with each other.

[0019] Note that the illustrated water-in-oil solid composition 51 and the oil-based solid composition 53 contain a common liquid oil in addition to the common solid oil (wax). This further improves the ease of compatibility that is improved by the common solid oil as described above. Note that the water-in-oil solid composition 51 and the oil-based solid composition 53 may contain a plurality of types of liquid oils in common, which can further improve the ease of compatibility. Incidentally, it is not essential for the water-in-oil solid composition 51 and the oil-based solid composition 53 to contain a common liquid oil. That is, the water-in-oil solid composition 51 and the oil-based solid composition 53 do not necessarily have to contain a common liquid oil with each other.

[0020] In addition, the oil-in-water solid composition 53 has another solid oil (second wax) different from the solid oil (first wax) common to the water-in-oil solid composition 51. This second wax has a higher melting point than the first wax. As a result, for example, the collapse of the side surface of the cosmetic 5 is suppressed in a high-temperature environment. Here, as described above, the water-in-oil solid composition 51 and the oil-in-water solid composition 53 are in a state of being mixed while leaving their respective layers. With such an arrangement where they are mixed with each other, the oil-in-water solid composition 53 containing the second wax with a higher melting point is disposed on the outer periphery of the water-in-oil solid composition 51. As a result, for example, even when the water-in-oil solid composition 51 is softened in a high-temperature environment, the deformation of the cosmetic 5 can be suppressed.

[0021] In addition, the cosmetic 5 is in a state where the water-in-oil solid composition 51 and the oil-in-water solid composition 53 having different dissolution temperatures are appropriately mixed with each other by filling them at a specific filling temperature. As a result, the cosmetic 5 is excellent in impact resistance and temperature stability, and has a fresh feeling of use, a high moisturizing feeling, and excellent appearance aesthetic properties.

[0022] <Manufacturing Method> Hereinafter, the manufacturing method of the solid cosmetic in the present embodiment will be described. In this specification, “%” means “mass %” unless otherwise specified. In addition, when representing a numerical range using “~”, the range includes the numerical values at both ends. Note that “solid” means having no fluidity at room temperature (25° C.), and “dissolution temperature” means the temperature at which each composition is dissolved in the following examples.

[0023] The solid cosmetic in the present embodiment includes a step 1 of dissolving (A) a water-in-oil solid composition and (B) an oil-in-water solid composition, a step 2 of cooling (A) the water-in-oil solid composition and (B) the oil-in-water solid composition, and a step 3 of filling (A) the water-in-oil solid composition and (B) the oil-in-water solid composition.

[0024] (Step 1) Step 1 is a step of heating and dissolving (A) a water-in-oil solid composition and (B) an oil-in-water solid composition at a specific dissolution temperature. The temperature condition for dissolving the composition (A) in Step 1 is preferably less than 100°C, more preferably in the range of 80 to 95°C. Also, the temperature condition for dissolving the composition (B) is preferably 100°C or higher, more preferably in the range of 100 to 130°C.

[0025] When the respective dissolution temperatures of the composition (A) and the composition (B) are lower than the above ranges, the waxes contained in each may not be completely dissolved and separated, the wax crystals may not be formed well, and there is a tendency for a decrease in strength and a heavy feeling in use. Furthermore, when the dissolution temperature of the composition (A) is higher than the above range, the contained moisture volatilizes, and there is a tendency for the fresh feeling in use to be impaired.

[0026] (Step 2) Step 2 is a step of cooling the (A) water-in-oil solid composition and the (B) oil solid composition obtained in Step 1 to a specific filling temperature. The temperature condition for cooling in Step 2 is such that the temperatures of the composition (A) and the composition (B) after cooling are preferably in the range of 65 to 95°C, more preferably in the range of 70 to 90°C.

[0027] When the respective temperatures of the composition (A) and the composition (B) after cooling are lower than the above ranges, the wax crystals may not be formed well, and in Step 3 described below, the bulks of the composition (A) and the composition (B) may not be mixed well, and there is a tendency for streaks and cracks to occur.

[0028] When the respective temperatures of the composition (A) and the composition (B) after cooling exceed the above ranges, the bulks may be mixed too much in Step 3, and there is a tendency to form a further water-in-oil solid composition. Furthermore, when the temperature of the composition (A) after cooling exceeds the above range, the contained moisture volatilizes, bubbles are generated in the filled product, and there is a tendency for the fresh feeling in use to be impaired.

[0029] (Step 3) Step 3 is a step of mixing and filling the (A) water-in-oil solid composition and the (B) oil solid composition obtained in Step 2 into a cosmetic container at a specific temperature difference. Note that the composition (A) and the composition (B) may be mixed in the cosmetic container while filling the cosmetic container, or may be premixed before filling the cosmetic container.

[0030] Here, it is preferable that the composition (A) and the composition (B) are appropriately mixed without forming a further water-in-oil solid composition due to overmixing. Additionally, it is preferable that the filling of the cosmetic container is completed without applying an external force for stirring to the composition (A) and the composition (B). The difference in filling temperature (filling temperature difference) in Step 3 is preferably such that the filling temperature difference is less than 20°C, more preferably 10°C or less, still more preferably 5°C or less, and most preferably 0°C, that is, a state where there is no filling temperature difference. Note that if the filling temperature difference exceeds the above range, the bulk does not mix well, and cracks tend to occur at the boundary of the bulk.

[0031] Now, the above heating and dissolution, and cooling and solidification can use commonly known methods in the manufacturing method of cosmetics. Also, the filling and mixing method may similarly be a commonly known method. For example, a method of filling while mixing from the upper opening of the container using two nozzles that discharge the (A) water-in-oil solid composition and the (B) oil solid composition respectively can be used.

[0032] Moreover, the ratio of the blending amounts of the (A) water-in-oil solid composition and the (B) oil solid composition of the present disclosure is not particularly limited, but a range of 1:9 to 9:1 in terms of the mass ratio of the composition (A) to the composition (B) is preferable, more preferably a range of 4:6 to 8:2, and still more preferably 5:5 to 7:3.

[0033] Also, the (A) water-in-oil solid composition and the (B) oil solid composition in the present disclosure may be those used in ordinary cosmetics and can be manufactured according to commonly known manufacturing methods. They are in a solid state at the stage before Step 1.

[0034] In the description of the above step 2, although the cooling of the water-in-oil solid composition (A) and the oil-based solid composition (B) has been described, either one of the composition (A) and the composition (B) may be cooled. Further, not only the mode of actively cooling by using a cooling device or the like, but also the mode of naturally cooling along with the conveyance of the composition (A) and the composition (B) in the manufacturing process may be used. Further, the composition (A) and the composition (B) obtained in step 1 may be filled into the cosmetic container in step 3 without being cooled.

[0035] <Ingredients> The water-in-oil solid composition (A) and the oil-based solid composition (B) of the present disclosure may contain, as main components, a solid oil, a liquid oil, a thickener, and a colorant. Further, the water-in-oil solid composition (A) may contain water and a surfactant in addition to the above components.

[0036] The solid oil used in the water-in-oil solid composition (A) and the oil-based solid composition (B) of the present disclosure can be used without particular limitation as long as it is solid at 25°C and is a solid oil used in ordinary cosmetics, and can be used regardless of the origin such as animal oil, vegetable oil, synthetic oil, etc. For example, hydrocarbons such as ceresin wax, polyethylene wax, Fischer-Tropsch wax, paraffin wax, microcrystalline wax, ozokerite wax, ethylene-propylene copolymer, paraffin-microcrystalline wax mixture, fats and oils such as beeswax, those derived from animals such as beeswax and spermaceti wax, those derived from plants such as carnauba wax and candelilla wax, mineral-based ones such as montan wax, and silicone oils such as silicone wax can be mentioned, and one or more of these can be used. Among these, as the solid oil used in the water-in-oil solid composition (A), hydrocarbon wax is preferable, and particularly, hydrocarbon wax having a melting point of less than 90°C is more preferable. Further, as the solid oil used in the oil-based solid composition (B), wax having a melting point of 85°C or higher is preferable, wax having a melting point of 90°C or higher is more preferable, and hydrocarbon wax having a melting point of 90°C or higher is even more preferable.

[0037] The liquid oils used in the (A) water-in-oil solid composition and (B) oil-based solid composition of the present disclosure are oils that are semi-solid to liquid at normal temperature with a melting point of less than 50°C. There is no particular limitation as long as it is used in ordinary cosmetics, and it may be any of animal oils, vegetable oils, and synthetic oils. For example, ethylhexyl palmitate, glyceryl tri(caprylate / caprate), triethylhexanoin, dicaprylyl carbonate, diisostearyl malate, diglyceryl triisostearate, decaglyceryl decaisostearate, oligomer esters of dimer acid and dimer diol, pentaerythritol tetraisostearate, diglyceryl tetraisostearate, cetyl ethylhexanoate, isopropyl myristate, isopropyl palmitate, octyldodecyl myristate, neopentyl glycol dioctanoate, cholesterol fatty acid esters, esters such as jojoba oil, volatile isoparaffin, polybutene, polyisobutylene, heavy liquid isoparaffin, liquid paraffin, α-olefin oligomer, squalane, hydrocarbons such as petrolatum, fats and oils such as olive oil, castor oil, mink oil, macadamia nut oil, fatty acids such as isostearic acid, oleic acid, higher alcohols such as oleyl alcohol, isostearyl alcohol, low-polymer dimethylpolysiloxane, cyclic silicone, high-polymer dimethylpolysiloxane, methylphenylpolysiloxane, methyltrimethicone, caprylyltrimethicone, crosslinked organopolysiloxane, silicone oils such as fluorine-modified polysiloxane, fluorine-based oil agents such as perfluoropolyether, lanolin, lanolin acetate, isopropyl lanolin fatty acid, lanolin derivatives such as lanolin alcohol, etc. may be mentioned, and one or more of these can be used.

[0038] As the surfactant used in the (A) water-in-oil solid composition of the present disclosure, there is no particular limitation as long as it is a surfactant used in ordinary cosmetics. For example, it is a silicone surfactant. Further explaining, silicone surfactants include, for example, PEG-11 methyl ether dimethicone, PEG / PPG-20 / 22 butyl ether dimethicone, PEG-9 dimethicone, PEG-3 dimethicone, PEG-9 methyl ether dimethicone, PEG-10 dimethicone, PEG-32 methyl ether dimethicone, cetyl PEG / PPG-10 / 1 dimethicone, PEG-9 polydimethylsiloxyethyl dimethicone, lauryl PEG-9 polydimethylsiloxyethyl dimethicone, methyl polysiloxane·cetyl methyl polysiloxane·poly(oxyethylene·oxypropylene) methyl polysiloxane copolymer, poly(oxyethylene·oxypropylene) methyl polysiloxane copolymer and other polyether-modified silicones, polyglyceryl-3 disiloxane dimethicone, polyglyceryl-3 polydimethylsiloxyethyl dimethicone, lauryl polyglyceryl-3 polydimethylsiloxyethyl dimethicone and other polyglycerol-modified silicones, (dimethicone / (PEG-10 / 15)) copolymer, (PEG-15 / lauryl dimethicone) copolymer, (PEG-15 / lauryl polydimethylsiloxyethyl dimethicone) copolymer and other partially crosslinked polyether-modified silicones, (dimethicone / polyglycerol-3) copolymer, (lauryl dimethicone / polyglycerol-3) copolymer, (polyglyceryl-3 / lauryl polydimethylsiloxyethyl dimethicone) copolymer and other partially crosslinked polyglycerol-modified silicones, etc.

[0039] As the water used in the (A) water-in-oil solid composition of the present disclosure, there is no particular limitation as long as it is water used in ordinary cosmetics. For example, purified water such as ion-exchanged water and distilled water can be mentioned.

[0040] As the thickener used in the (A) water-in-oil solid composition of the present disclosure, there is no particular limitation as long as it is used in ordinary cosmetics. For example, aqueous thickeners such as methylcellulose, hydroxymethylcellulose, xanthan gum, carrageenan, guar gum, agar, pectin, gellan gum, and inorganic thickeners such as bentonite and silica can be mentioned. In particular, water-soluble polymers are preferred, and polysaccharides with a large difference between the freezing point and the melting point, such as agar and gellan gum, are more preferred.

[0041] As the thickener used in the (B) oil-based solid composition of the present disclosure, there is no particular limitation as long as it is used in ordinary cosmetics. For example, inorganic thickeners such as silica, silylated silica, dimethylsilylated silica, and bentonite can be mentioned.

[0042] Examples of the colorants used in the (A) water-in-oil solid composition and (B) oil-based solid composition of the present disclosure include coloring pigments and dyes, etc. There is no particular limitation as long as they are those used in ordinary cosmetics, and any shape (spherical, needle-like, plate-like, etc.), particle size (smoky, fine particles, pigment grade, etc.), and particle structure (porous, non-porous, etc.) can be used. Specifically, white inorganic pigments such as titanium oxide, zinc oxide, cerium oxide, and barium sulfate, colored inorganic pigments such as iron oxide, carbon black, titanium·titanium oxide sintered product, chromium oxide, chromium hydroxide, ultramarine blue, and ultramarine, titanium dioxide-coated mica, titanium dioxide-coated bismuth oxychloride, iron oxide mica titanium, ultramarine-treated mica titanium, carmine-treated mica titanium, bismuth oxychloride, fish scale foil, polyethylene terephthalate·aluminum·epoxy laminate powder, polyethylene terephthalate·polyolefin laminate film powder, polyethylene terephthalate·polymethyl methacrylate laminate film powder, etc. of brightening powders, metal powders such as aluminum powder, gold powder, and silver powder, organic pigment powders such as zirconium, barium, or aluminum lakes such as Red No. 201, Red No. 202, Red No. 205, Red No. 226, Red No. 228, Orange No. 203, Orange No. 204, Blue No. 1, Blue No. 404, Yellow No. 401, Yellow No. 4, Yellow No. 5, etc., metal powders such as aluminum powder, gold powder, and silver powder, composite powders such as fine particle titanium dioxide-coated mica titanium, fine particle zinc oxide-coated mica titanium, barium sulfate-coated mica titanium, titanium dioxide-containing silicon dioxide, and zinc oxide-containing silicon dioxide, etc. can be mentioned, and one or more of these can be used. In addition, if necessary, surface treatment can be performed by using a fluorine-based compound, a silicone-based compound, a metal soap, lecithin, hydrogenated lecithin, collagen, a hydrocarbon, a higher fatty acid, a higher alcohol, an ester, a wax, a rosin, a surfactant, etc. by a generally known method, or a further compounded one can also be used.

[0043] In addition to the above components, optional components used in ordinary cosmetics can be used in the solid cosmetics of the present disclosure as needed. Such optional components can include, for example, powders other than the above components, surfactants, ultraviolet absorbers, anti-fading agents, antioxidants, beauty components, preservatives, fragrances, etc. within a range that does not interfere with the effects of the present invention.

[0044] The solid cosmetic of the present disclosure is not particularly limited. For example, base makeup cosmetics with skin care elements such as stick serums, full-face makeup cosmetics such as foundations, primers, face powders, and concealers, eye makeup cosmetics such as eyeshadows and eyebrows, lip cosmetics such as lipsticks and lip creams, partial-use makeup cosmetics such as blushes, skin care cosmetics such as body powders and antiperspirant powders, etc. can be mentioned. Moreover, the shape of the molded product in the above manufacturing method is not particularly limited, but it is preferably a stick shape which is a common shape.

[0045] <Example> Hereinafter, the present invention will be described more specifically with reference to examples and the like, but the present invention is not limited to the following examples and the like at all.

[0046] (Examples 1 to 7, Comparative Examples 1 to 3) Prepare the (A) water-in-oil solid composition and (B) oil-based solid composition of the following formulations, and prepare a solid cosmetic (serum stick) according to the following manufacturing method. For the obtained solid cosmetic, impact resistance, temperature stability, and sensory properties (freshness, high moisturizing feeling, and aesthetic appearance) were evaluated by the following evaluation methods. The results are shown together in Table 1.

[0047] (A) Water-in-oil solid composition (W / O emulsion base) (Component) (%) (1) Paraffin·microcrystalline wax mixture (melting point 79 - 89°C) 8.0 (2) Candelilla wax (melting point 71.7°C) 2.0 (3) Triethylhexanoin 25.0 (4) Methyltrimethicone 20.0 (5) Lauryl PEG-9 polydimethylsiloxyethyl dimethicone 1.0 (6) Purified water 39.5 (7) Agar 0.5 (8) Lecithin-treated titanium oxide 3.948 (9) Ceramide-treated red iron oxide 0.04 (10) Ceramide-treated yellow iron oxide 0.01 (11) Ceramide-treated black iron oxide 0.002

[0048] (B) Oil-based solid composition (O base) (Component) (%) (1) Ethylene-propylene copolymer (melting point 90 - 99°C) 4.0 (2) Paraffin-microcrystalline wax mixture (melting point 79 - 89°C) 8.0 (3) Candelilla wax (melting point 71.7°C) 2.0 (4) Triethylhexanoin 40.0 (5) Methyltrimethicone 40.0 (6) Dimethylsilylated silica 2.0 (7) Red No. 202 0.005 (8) Yellow No. 4 0.014 (9) Silicone-treated black iron oxide 0.001 (10) Silicone-treated mica titanium 2.98 (11) Silicone-treated iron oxide-coated mica titanium 1.0

[0049] (Manufacturing method) 1. Compositions (A) and (B) were heated to the predetermined temperatures shown in Table 1 and melted uniformly. 2. Compositions (A) and (B) were cooled to the predetermined filling temperatures shown in Table 1. 3. Compositions (A) and (B) were mixed and filled into a container at the above filling temperature, and then cooled and solidified to obtain a solid cosmetic product by molding.

[0050] (Evaluation items) i. Impact resistance (Evaluation method) Six solid cosmetics of the examples and comparative examples were prepared respectively. One was used as a standard, and the other five were filled in containers and freely dropped onto an acrylic plate from a height of 50 cm in the upright direction. After dropping, the surface state was observed in comparison with the surface state of the standard, and each solid cosmetic was scored according to the following evaluation criteria. Then, the average score of the scores with the test number (N) = 5 was calculated, and the determination was made according to the following four-level determination criteria. (Evaluation Criteria) (Score): (Evaluation) 4: No change 3: Slightly cracked, but no problem in usability 2: Cracked, with gaps 1: With large cracks or gaps (Determination Criteria) ◎: 3.5 or more 〇: 3.0 or more and less than 3.5 △: 2.0 or more and less than 3.0 ×: Less than 2.0

[0051] (Evaluation Items) B. Temperature Stability (Evaluation Method) Solid cosmetics of the examples and comparative examples were prepared, stored in a 50°C constant temperature bath for two weeks, and then the surface state in the state of being drawn out from the container was visually observed and evaluated according to the following determination criteria. (Determination Criteria) (Determination): (Evaluation) 4: No change 3: Slightly sweating or surface displacement 2: Sweating, surface displacement 1: Large sweating, surface displacement (Determination Criteria) (Determination): (Average Score) ◎: 3.5 or more ○: 3.0 or more and less than 3.5 △: 2.0 or more and less than 3.0 ×: Less than 2.0

[0052] C. Sensory Evaluation (Evaluation Method) A usage test was conducted by 20 professional panelists for cosmetic evaluation. Each panelist evaluated the "fresh feeling of use", "high moisturizing feeling", and "appearance aesthetics" on a 5-point scale when applying the cosmetic according to the following evaluation criteria, gave a score, calculated the average value from the total scores of all panelists, and made a judgment according to the following judgment criteria. Here, "appearance aesthetics" means the beauty of the appearance felt by people when looking at it. (Score): (Evaluation) 5: Very good 4: Good 3: Ordinary 2: Bad 1: Very bad (Judgment criteria) (Judgment): (Average score) ◎: Exceeding 4.0 ○: Exceeding 3.0 and below 4.0 △: Exceeding 2.0 and below 3.0 ×: 2.0 and below

[0053]

Table 1

[0054] As is clear from the results in Table 1, the solid cosmetics of Examples 1 to 7 were in a state where Composition (A) and Composition (B) were moderately mixed and were excellent in impact resistance, temperature stability, fresh feeling of use, high moisturizing feeling, and appearance aesthetics. On the other hand, in Comparative Example 1 where the dissolution temperature of Composition (A) was high, the moisture contained in Composition (A) boiled and bubbles were generated. Also, in the sensory evaluation, the fresh feeling of use, high moisturizing feeling, and appearance aesthetics were not sufficient. In addition, in Comparative Example 2 where the dissolution temperature of Composition (B) was low, wax crystals could not be formed well, and insufficient strength after molding was recognized. Also, the fresh feeling of use was inferior. Furthermore, in Comparative Example 3 where the filling temperature difference between Composition (A) and Composition (B) was large, the two bulks did not mix well, and cracks were observed at the boundary of the bulks. Also, in the sensory evaluation, the appearance aesthetics was not sufficient.

[0055] (Examples 8 - 10, Comparative Examples 4 - 5) Using the (A) water - in - oil solid composition and (B) oil - based solid composition of the formulation of Example 1 above, according to the above manufacturing method, solid cosmetics of Examples 8 - 10 were prepared with the bulk ratio of composition (A) and composition (B) being the predetermined values shown in Table 2. Also, a solid cosmetic of Comparative Example 4 was prepared using only the (A) water - in - oil solid composition of the formulation of the above example, and a solid cosmetic of Comparative Example 5 was prepared using only the (B) oil - based solid composition. For the obtained solid cosmetics, impact resistance, temperature stability, fresh feeling in use, high moisturizing feeling, and appearance aesthetic property were evaluated by the following evaluation methods. The results are shown together in Table 2. Note that the evaluation methods and criteria are as described above.

[0056]

Table 2

[0057] As is clear from the results in Table 2, the solid cosmetics of Examples 8 - 10 were excellent in impact resistance, temperature stability, fresh feeling in use, high moisturizing feeling, and appearance aesthetic property. On the other hand, in Comparative Example 4 consisting only of composition (A), the impact resistance and temperature stability were insufficient, and the appearance aesthetic property was also inferior. Also, in Comparative Example 5 consisting only of composition (B), the fresh feeling in use and high moisturizing feeling were not sufficient, and the appearance aesthetic property was also inferior.

[0058] (Examples 11 - 14) In the (A) water - in - oil solid composition of the formulation of Example 1 above, instead of the agar as a component, those containing gellan gum which is a different type of polysaccharide (Example 11), those containing bentonite which is a different type of aqueous thickener (Example 12), those containing silica which is another aqueous thickener (Example 13), and those not containing an aqueous thickener (Example 14) were prepared. Then, using the (A) water - in - oil solid composition of such a formulation and the (B) oil - based solid composition of the formulation of Example 1 above, solid cosmetics were prepared according to the above manufacturing method. For the obtained solid cosmetic, the impact resistance, temperature stability, usability (fresh usability, high moisturizing feeling), and aesthetic appearance were evaluated by the following evaluation methods. The results are shown together with Table 3. The evaluation methods and criteria are as described above.

[0059]

Table 3

[0060] As is clear from the results in Table 3, the solid cosmetic of Example 11 was excellent in impact resistance, temperature stability, fresh usability, high moisturizing feeling, and aesthetic appearance. Also, although the solid cosmetics of Examples 12 and 13 were slightly inferior compared to those of Example 1 or Example 11, it was confirmed that temperature stability and fresh usability could be obtained. Furthermore, although the solid cosmetic of Example 14 was slightly inferior compared to those of Example 1 or Example 11, it was confirmed that impact resistance and temperature stability could be obtained.

[0061] (Examples 15, 16) In the (B) oily solid composition of the formulation of Example 1 above, a polyethylene wax having a melting point of 92 to 98 °C (Example 15) and further a composition not containing a high melting point wax (Example 16) were prepared in place of the ethylene·propylene copolymer of the components. Then, using the (B) oily solid composition of such a formulation and the (A) water-in-oil solid composition of the formulation of Example 1 above, a solid cosmetic was prepared according to the above production method. For the obtained solid cosmetic, the impact resistance, temperature stability, usability (fresh usability, high moisturizing feeling), and aesthetic appearance were evaluated by the following evaluation methods. The results are shown together with Table 4. The evaluation methods and criteria are as described above.

[0062]

Table 4

[0063] As is clear from the results in Table 4, the solid cosmetic of Example 15 was excellent in impact resistance, temperature stability, fresh usability, high moisturizing feeling, and appearance aesthetics. On the other hand, although the solid cosmetic of Example 16 was somewhat inferior compared to those of Example 1 and Example 15, it was confirmed that impact resistance and temperature stability could be obtained.

[0064] <Other formulation examples> As described above, the present invention has been described by way of examples, etc., but the examples, etc. are merely illustrative, and other formulations may also be used. For example, in the formulation of Example 1 above, an oil-in-water type solid composition of the following formulation (A) may be used. That is, while using an oil-in-water type solid composition of each of the following formulations as (A), a solid cosmetic (serum stick) may be prepared using the formulation of Example 1 above as (B) the oily solid composition.

[0065] (Formulation Example 1) (A) Oil-in-water type solid composition (W / O emulsion base) (Component) (%) (1) Carnauba wax (melting point 80 - 86°C) 6.0 (2) Paraffin wax (melting point 75 - 85°C) 4.0 (3) Cetyl ethylhexanoate 12.5 (4) Ethylhexyl methoxysilicate 7.0 (5) Polyglyceryl-2 triisostearate 2.0 (6) Meadowfoam oil 2.0 (7) Methyltrimethicone 9.142 (8) Dimethylpolysiloxane (2CS) 10.0 (9) Lauryl PEG-9 polydimethylsiloxyethyl dimethicone 1.0 (10) Lauryl polyglyceryl-3 polydimethylsiloxyethyl dimethicone 0.5 (11) Synthetic phlogopite 1.0 (12) Cellulose 0.5 (13) Purified water 38.0 (14) Agar 0.2 (15) Glycerin 2.0 (16) Lecithin-treated titanium oxide 3.948 (17) Aluminum hydroxide-treated red iron oxide with stearoyl glutamate 2Na 0.1 (18) Aluminum hydroxide-treated yellow iron oxide with stearoyl glutamate 2Na 0.1 (19) Lauroyl lysine-treated black iron oxide 0.01

[0066] (Formulation Example 2) (A) Water-in-oil solid composition (W / O emulsion base) (Components) (%) (1) Rice bran wax (melting point 80 - 86°C) 4.0 (2) Candelilla wax (melting point 70 - 75°C) 4.0 (3) Paraffin wax (melting point 56 - 59°C) 2.0 (4) Beeswax (melting point 60 - 67°C) 0.5 (5) Cetyl ethylhexanoate 10.0 (6) Ethylhexyl methoxycinnamate 7.0 (7) Dimer dilinoleic acid (phytosteryl / isostearyl / cetyl / stearyl / behenyl) 1.0 (8) Meadowfoam oil 3.0 (9) Methyltrimethicone 9.342 (10) Dimethylpolysiloxane (2CS) 10.0 (11) Lauryl PEG-9 polydimethylsiloxyethyl dimethicone 1.0 (12) Lauryl polyglyceryl-3 polydimethylsiloxyethyl dimethicone 0.5 (13) Purified water 40.0 (14) Sodium chloride 0.1 (15) Dipropylene glycol 3.0 (16) Aluminum hydroxide / dimethylsilicone-treated titanium oxide with stearoyl glutamate 2Na 3.948 (17) Aluminum hydroxide / dimethylsilicone-treated red iron oxide with stearoyl glutamate 2Na 0.2 (18) Iron Oxide Yellow, Stearoyl Glutamic Acid 2Na, Aluminum Hydroxide, Dimethicone Treated, 0.4 (19) Iron Oxide Black, Stearoyl Glutamic Acid 2Na, Aluminum Hydroxide, Dimethicone Treated, 0.01

[0067] (Formulation Example 3) (A) Water-in-Oil Solid Composition (W / O Emulsion Base) (Ingredients) (%) (1) Paraffin·Microcrystalline Wax Mixture (Melting Point 79 - 89°C) 6.0 (2) Candelilla Wax (Melting Point 70 - 75°C) 0.5 (3) Rice Bran Wax (Melting Point 80 - 86°C) 0.5 (4) Petrolatum 0.5 (5) Triethylhexanoin 7.0 (6) Isotridecyl Isononanoate 3.0 (7) Ethylhexyl Methoxycinnamate 7.0 (8) Hexyl Diethylaminohydroxybenzoyl Benzoate 1.0 (9) Hexa(Hydroxystearic Acid / Stearic Acid / Rosin Acid) Dipentaerythrityl 0.3 (10) Squalane 3.0 (11) Methyltrimethicone 11.99 (12) Dimethylpolysiloxane (2CS) 10.0 (13) Cetyl PEG / PPG - 10 / 1 Dimethicone 1.0 (14) Lauryl Polyglyceryl - 3 Polydimethylsiloxyethyl Dimethicone 0.5 (15) Purified Water 38.0 (16) Ethanol 1.0 (17) Sodium Chloride 0.1 (18) Dipropylene Glycol 3.0 (19) Titanium Dioxide, Stearoyl Glutamic Acid 2Na, Aluminum Hydroxide, Dimethicone Treated, 5.0 (20) Iron Oxide Red, Stearoyl Glutamic Acid 2Na, Aluminum Hydroxide, Dimethicone Treated, 0.2 (21) Iron Oxide Yellow, Stearoyl Glutamic Acid 2Na, Aluminum Hydroxide, Dimethicone Treated, 0.4 (22) Iron Oxide Black, Stearoyl Glutamic Acid 2Na, Aluminum Hydroxide, Dimethicone Treated, 0.01

[0068] (Formulation Example 4) (A) Water-in-Oil Solid Composition (W / O Emulsion Base) (Ingredients) (%) (1) Paraffin - Microcrystalline Wax Mixture (Melting Point 79 - 89°C) 8.0 (2) Hydrogenated Jojoba Oil (Melting Point 66 - 77°C) 2.0 (3) Dipentaerythrityl Hexahydroxystearate 0.5 (4) Triethylhexanoin 5.0 (5) Diisostearyl Malate 3.0 (6) Isododecane 5.0 (7) (Fluoride / Hydroxide / Oxide) / (Mg / K / Silicon) 3.0 (8) Methyltrimethicone 13.29 (9) Dimethylpolysiloxane (2CS) 10.0 (10) Lauryl PEG - 9 Polydimethylsiloxyethyl Dimethicone 1.0 (11) Lauryl Polyglyceryl - 3 Polydimethylsiloxyethyl Dimethicone 0.5 (12) Purified Water 38.0 (13) Sodium Chloride 0.1 (14) Glycerin 5.0 (15) Titanium Oxide, Stearoyl Glutamic Acid 2Na, Aluminum Hydroxide, Dimethicone Treated, 5.0 (16) Iron Oxide Red, Stearoyl Glutamic Acid 2Na, Aluminum Hydroxide, Dimethicone Treated, 0.2 (17) Iron Oxide Yellow, Stearoyl Glutamic Acid 2Na, Aluminum Hydroxide, Dimethicone Treated, 0.4 (18) Iron Oxide Black, Stearoyl Glutamic Acid 2Na, Aluminum Hydroxide, Dimethicone Treated, 0.01

[0069] (Formulation Example 5) (A) Water-in-oil solid composition (W / O emulsion base) (Component) (%) (1) Paraffin·microcrystalline wax mixture (melting point 79 - 89°C) 4.0 (2) Paraffin wax (melting point 75 - 85°C) 6.0 (3) Sunflower wax (melting point 76°C) 2.0 (4) Polyglyceryl-10 pentahydroxystearate 2.0 (5) Tritridecyl trimellitate 4.0 (6) Polyglyceryl-2 triisostearate 5.0 (7) Hexa(hydroxystearic acid / stearic acid / rosin acid) dipentaerythrityl 0.3 (8) Squalane 3.0 (9) Diphenylsiloxyphenyltrimethicone 7.0 (10) Methyltrimethicone 13.55 (11) Isododecane 10.0 (12) Sorbitan sesquioleate 0.5 (13) Lauryl polyglyceryl-3 polydimethylsiloxyethyldimethylicone 1.0 (14) Purified water 38.0 (15) Sodium chloride 0.1 (16) 1,3-Butylene glycol 3.0 (17) Red 226 0.5 (18) Fragrance 0.05

[0070] (Formulation Example 6) (A) Water-in-oil solid composition (W / O emulsion base) (Component) (%) (1) Paraffin·microcrystalline wax mixture (melting point 79 - 89°C) 8.0 (2) Candelilla wax (melting point 71.7°C) 2.0 (3) Ethyl cellulose 0.2 (4) Octyldodecanol 5.0 (5) Decyltetradecanol 15.0 (6) Diisostearyl malate 5.0 (7) Methyltrimethicone 18.093 (8) Lauryl PEG-9 polydimethylsiloxyethyl dimethicone 1.0 (9) Purified water 37.5 (10) Glycerin 8.0 (11) (Acrylates / Alkyl acrylate (C10-30)) crosspolymer 0.1 (12) Red 227 0.06 (13) Blue No. 1 0.001 (14) Yellow No. 4 0.046

[0071] Although various embodiments and modifications have been described above, it is of course possible to combine and configure these embodiments and modifications with each other. Further, the present disclosure is not limited to the above-described embodiments at all, and can be implemented in various forms without departing from the gist of the present disclosure.

Explanation of reference numerals

[0072] 1... Cosmetics, 3... Sleeve, 5... Cosmetic, 51... Oil-in-water solid composition, 53... Oil-based solid composition

Claims

1. The following compositions (A) and (B); (A) An oil-in-water solid composition (B) An oil-based solid composition containing the dissolution temperature of the composition (A) is less than 100°C, the dissolution temperature of the composition (B) is 100°C or higher, the filling temperature of the compositions (A) and (B) is 65 to 95°C, and a solid cosmetic in which the difference in the filling temperatures of the compositions (A) and (B) is less than 20°C.

2. The solid cosmetic according to Claim 1, wherein the filling temperature of the composition (A) is equal to or lower than the filling temperature of the composition (B).

3. The solid cosmetic according to Claim 1 or 2, wherein the difference in the filling temperatures of the compositions (A) and (B) is 10°C or lower.

4. The solid cosmetic according to Claim 1 or 2, wherein the mass ratio of the compositions (A) and (B) is 1:9 to 9:

1.

5. The solid cosmetic according to Claim 1 or 2, wherein the compositions (A) and (B) have different colors from each other.

6. The solid cosmetic according to Claim 1 or 2, wherein the composition (B) contains a wax having a melting point of 90°C or higher.

7. The solid cosmetic according to Claim 1 or 2, wherein the composition (A) contains a water-soluble polymer.

8. The solid cosmetic according to Claim 7, wherein the water-soluble polymer is agar.

9. The solid cosmetic according to Claim 1 or 2, which is in stick form.

10. Dissolving the oil-in-water solid composition (A) at a temperature less than 100°C, dissolving the oil-based solid composition (B) at a temperature of 100°C or higher, and a method for producing a solid cosmetic, wherein the dissolved oil-in-water solid composition (A) and oil-based solid composition (B) are filled into a container at respective temperatures of 65 to 95°C and with a temperature difference of less than 20°C.

11. The following compositions (A) and (B); (A) An oil-in-water solid composition containing a first solid oil (B) An oil-based solid composition containing a second solid oil containing and forming a pattern in which the compositions (A) and (B) are unevenly mixed, and the second solid oil has a higher melting point than the first solid oil, a solid cosmetic.

12. The solid cosmetic according to Claim 11, wherein the composition (B) contains the first solid oil and the second solid oil.

13. The solid cosmetic according to Claim 12, wherein the compositions (A) and (B) contain a plurality of types of solid oils as the first solid oil.

14. The solid cosmetic according to Claim 12 or 13, wherein the compositions (A) and (B) contain a common liquid oil.

15. The solid cosmetic according to claim 14, wherein the compositions (A) and (B) contain a plurality of types of liquid oils as the common liquid oil.

16. The solid cosmetic according to claim 11, wherein the second solid oil is a wax having a melting point of 90°C or higher.

17. The solid cosmetic according to claim 11, wherein the composition (A) contains a water-soluble polymer.

18. The solid cosmetic according to claim 17, wherein the water-soluble polymer is agar.

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