TWI883069B - Multi-phase oily solid cosmetics - Google Patents

Abstract

The subject of the present invention is to provide a multi-phase oily solid cosmetic material having a transparent phase and having high aesthetic properties as a cosmetic material. The present invention provides a multi-phase oily solid cosmetic material having a transparent first phase and a transparent second phase connected to each other, wherein the first phase contains component (A) an amino acid-based peptizer and a first oil agent, and the second phase contains component (B) a dextrin fatty acid ester, component (C) a dye, and a second oil agent.

Description

Multi-phase oily solid cosmetics

The present invention relates to a multi-phase oily solid cosmetic.

Oily solid cosmetics are widely used in lip makeup, eye shadow, fragrance compositions, etc. Cosmetics are used to give the skin various tones and textures. In particular, in addition to makeup effects such as gloss, transparency, and good color rendering, and functionality such as low secondary adhesion, cosmetics are also required to have the appearance and function of the cosmetics themselves related to the fun of makeup. So far, many technologies have been proposed for cosmetics that feature beauty of appearance or fun of use. For example, there is a technology for providing a transparent oily solid cosmetic material using hydroxystearic acid as a curing agent (Patent Document 1), and a technology for providing a stick-shaped preparation for lips that exhibits sufficient transparency by using an N-acyl amino acid derivative, a polyamide resin, and a liquid oil component (Patent Document 2). In addition, a cosmetic material has been proposed, in which a second oily solid component having a high dropping point is present in dots in a first oily solid component having transparency by utilizing the characteristics of such a transparent oily solid cosmetic material (Patent Document 3). [Prior Technical Documents] [Patent Documents]

[Patent Document 1] Japanese Patent Publication No. 2006-124301 [Patent Document 2] Japanese Patent Publication No. 2010-260825 [Patent Document 3] Japanese Patent Publication No. 2016-88932

[Problems to be solved by the invention]

However, the transparency and aesthetics of oily solid cosmetics are considered to have room for improvement. Therefore, the main purpose of the present invention is to obtain a multi-phase oily solid cosmetic having a transparent phase and high aesthetics as a cosmetic. [Means for solving the problem]

As a result of intensive research, the inventors found that the above-mentioned problems can be solved by using a transparent first phase containing a specific component and a transparent second phase containing a specific component and a dye, thereby completing the present invention.

That is, the present invention provides a multi-phase oily solid cosmetic, which has a transparent first phase and a transparent second phase connected to each other, The first phase contains component (A) an amino acid-based peptizer and a first oil agent, The second phase contains component (B) a dextrin fatty acid ester, component (C) a dye, and a second oil agent. The component (A) can include one or more selected from dibutyl lauroyl glutamide and dibutyl ethylhexanoyl glutamide. The first oil agent can include one or more selected from diisostearate, tritridecyl trimellitate, and polyglyceryl-2 triisostearate. The second oil may include one or more selected from diisostearyl apple acid, tri-tridecyl trimellitate and polyglyceryl-2 triisostearate. The second phase may contain 0.05-0.3% by mass of the aforementioned component (C). The multi-phase oily solid cosmetic may be a two-layer stick having the first phase as the outer layer and the second phase as the inner layer. [Effect of the invention]

According to the present invention, a multi-phase oily solid cosmetic having a transparent phase and high aesthetics as a cosmetic can be obtained.

[Form used to implement the invention]

The present invention is described in detail below. In addition, in this specification, "～" means a range including the numerical values before and after it. The multi-phase oily solid cosmetic of the present invention has a transparent first phase and a transparent second phase connected to each other, the first phase contains component (A) amino acid based peptizer and a first oil agent, and the second phase contains component (B) dextrin fatty acid ester, component (C) dye, and a second oil agent.

(First phase) The amino acid-based gelling agent contained in the first phase (A) has an amide bond in the molecule and solidifies the oil. As long as it is generally used in cosmetics, it can be used without special restrictions. Component (A) can solidify the oil transparently to form an oily solid cosmetic. As component (A), for example, dibutyl lauryl glutamic acid amide, dibutyl ethylhexyl glutamic acid amide, (bis(dialkyl) (C14-18) amide (ethylenediamine/hydrogenated dimer dilinoleic acid) copolymer, etc. can be listed. Component (A) preferably contains one or more selected from dibutyl lauryl glutamic acid amide and dibutyl ethylhexyl glutamic acid amide, and more preferably contains dibutyl lauryl glutamic acid amide. Lauryl glutamic acid amide and dibutyl ethylhexyl glutamic acid amide. Examples of commercially available dibutyl lauryl glutamic acid amide include amino acid based peptizer GP-1 (manufactured by AJINOMOTO Co., Ltd.). Examples of commercially available dibutyl ethylhexyl glutamic acid amide include amino acid based peptizer EB-21 (manufactured by AJINOMOTO Co., Ltd.).

The lower limit of the content of the component (A) is preferably 1 mass % (hereinafter referred to as %) or more in the first phase, and more preferably 3% or more. The upper limit of the content of the component (A) is preferably 10% or less in the first phase, and more preferably 7% or less. Within this range, the first phase can have better transparency and moldability (especially moldability in a three-dimensional shape such as a rod) of the solidified oil.

Examples of the first oil contained in the first phase include liquid oils derived from animal oils, vegetable oils, synthetic oils, etc.; hydrocarbons such as volatile oils; fats; hardened oils; ester oils; fatty acids; higher alcohols; silicone oils; fluorine oils; lanolin derivatives, etc. Specifically, hydrocarbons such as liquid wax, squalane, polyisobutene, polybutene, etc.; oils such as olive oil, castor oil, mink oil, macadamia nut oil, etc.; jojoba oil, cetyl 2-ethylhexanoate, isostearyl lactate, octyldodecyl lactate, oleyl lactate, stearyl lactate, diisostearate malic acid, isopropyl myristate, isopropyl palmitate, octyldodecyl myristate, neopentylthritol rosin acid ester, neopentyl glycol dicaprylate, neopentyl glycol dicaprylate, cholesterol fatty acid ester, phytosterol fatty acid ester, etc.; esters such as stearic acid, lauric acid, myristic acid, oleic acid, isostearic acid, oil fatty acids such as dimethyl polysiloxane, methyl phenyl polysiloxane, decamethylcyclopentasiloxane, octamethylcyclotetrasiloxane, trimethylsiloxysilicate, high-polymerization methyl phenyl polysiloxane, cross-linked methyl polysiloxane, polyoxy-modified organic polysiloxane, cross-linked polyether-modified methyl polysiloxane, methacrylic acid-modified polysiloxane, stearyl-modified methyl polysiloxane, methyl polysiloxane), oil-modified methyl polysiloxane, hydroxy-modified methyl polysiloxane, polyvinyl pyrrolidone-modified methyl polysiloxane, high-polymerization dimethyl polysiloxane, polyoxyalkylene (polyoxyalkylene) methyl polysiloxane methyl polysiloxane copolymer, alkoxy-modified polysiloxane, cross-linked organic polysiloxane, fluorine-modified polysiloxane and other polysiloxanes; fluorine-based oils such as perfluorodecane, perfluorooctane, and perfluoropolyether; lanolin, lanolin acetate, lanolin fatty acid isopropyl ester, lanolin alcohol and other lanolin derivatives, etc., one or more of which can be used. In the present invention, the first oil contained in the first phase is preferably selected from one or more of diisostearyl apple acid, tri-tridecyl trimellitate and polyglyceryl-2 triisostearate, and more preferably selected from one or more of diisostearyl apple acid and tri-tridecyl trimellitate. The content of the first oil is preferably 85% or more in the first phase, more preferably 93% or more, and further preferably 99% or more. If it is within this range, the transparency and formability of the first phase can be made more excellent. In the case where the first oil contains solid oil and/or paste oil, in order to improve transparency, the total content of solid oil and paste oil is preferably less than 5%, more preferably less than 1%, and further preferably 0% in the first phase. That is, in order to improve transparency, the first oil is particularly preferably not to contain solid oil and paste oil.

The upper limit of the hardness of the first phase is preferably 400 or less, more preferably 300 or less, and further preferably 200 or less. The lower limit of the hardness of the first phase is preferably 50 or more, more preferably 80 or more, and further preferably 100 or more.

The hardness is set to the following resistance value: the molten cosmetic is filled into a wide-mouth container, left to solidify at 25°C for 12 hours, and then a 2mm needle is inserted at 6cm/min using a FUDOH rheometer RTC2002D (manufactured by RHEOTECH) and a 3mmϕ adapter.

(Second phase) The component (B) dextrin fatty acid ester contained in the second phase is a functional group formed by ester bonding between the hydroxyl group in the dextrin molecule and the fatty acid, and can be used without particular limitation as long as it is generally used in cosmetics. Component (B) can solidify the oil. Examples of component (B) include palmitic acid dextrin, myristic acid dextrin, (palmitic acid・2-ethylhexanoic acid) dextrin, etc. Component (B) preferably includes palmitic acid dextrin and/or (palmitic acid・2-ethylhexanoic acid) dextrin. Examples of commercially available palmitic acid dextrin include Rheopearl KL2 (manufactured by Chiba Flour Mills Co., Ltd.). Examples of commercially available products of (palmitoyl)dextrin include Rheopearl TL2 and Rheopearl TT2 (manufactured by Chiba Flour Mills Co., Ltd.).

The lower limit of the content of component (B) is preferably 13.5% or more, more preferably 17.5% or more in the second phase. The upper limit of the content of component (B) is preferably 25% or less, more preferably 20% or less in the second phase. Within this range, the multi-phase oily solid cosmetic of the present invention can have better formability, stability in a high temperature environment, smooth usability and transparency.

The dye component (C) contained in the second phase can be used without particular limitation as long as it is generally used in cosmetics. Component (C) is preferably an oil-soluble dye containing a fluorescent yellow masterbatch (fluoran). Examples of the oil-soluble dye containing a fluorescent yellow masterbatch include Red No. 218 and Red No. 223. Examples of commercially available products of component (C) include TPP Red No. 218 and TPP Red No. 223 (both manufactured by Keisi Chemical Co., Ltd.).

The lower limit of the content of component (C) is preferably 0.05% or more, more preferably 0.1% or more in the second phase. The upper limit of the content of component (C) is preferably 0.3% or less, more preferably 0.2% or less in the second phase. Within this range, the multi-phase oily solid cosmetic of the present invention has a more excellent makeup effect of color development, that is, the color development of the dye when applied to the skin or lips is more excellent. Furthermore, within the above range, the multi-phase oily solid cosmetic of the present invention has a more excellent transparency.

As examples of the second oil contained in the second phase, the oils exemplified as the first oil contained in the first phase can be cited. The second oil contained in the second phase can be the same as the first oil contained in the first phase, or different. The second oil contained in the second phase is preferably one or more selected from diisostearyl apple acid, tri-tridecyl trimellitate, and polyglyceryl-2 triisostearate, and more preferably one or more selected from diisostearyl apple acid and tri-tridecyl trimellitate. If such oils are used, the color development of the dye of component (C) in the second phase can be more effectively suppressed. Therefore, such oils can be suitably used in the case where the purpose is to use a multi-phase oily solid cosmetic that is colorless and transparent in appearance and is colored only after being applied to the skin or lips.

The second phase is preferably softer and has better adhesion than the first phase. That is, the hardness of the second phase is preferably lower than the hardness of the first phase. The upper limit of the hardness of the second phase is preferably 100 or less, more preferably 70 or less, and further preferably 55 or less. The lower limit of the hardness of the second phase is preferably 10 or more, and more preferably 20 or more.

(Multi-phase oily solid cosmetic) The multi-phase oily solid cosmetic of the present invention has a first phase and a second phase, and the first phase and the second phase are combined in a mutually connected manner. The first phase and the second phase are oily solid cosmetics, respectively. The multi-phase oily solid cosmetic of the present invention may be a phase other than the first phase and the second phase, or may be a phase having only the first phase and the second phase. The shape of each phase may include, for example, each phase forming a layered structure, each phase being arranged regularly or randomly, or another phase being dispersed in any phase, etc., preferably each phase forming a layered structure. In addition, the number of the first phase and the second phase is not limited, and each can be 1 or more than 2. The multi-phase oily solid cosmetic of the present invention is preferably a two-layer oily solid cosmetic having a layered structure of a first phase and a second phase.

The first phase and the second phase are both transparent, and the multi-phase oily solid cosmetic of the present invention that combines these is transparent as long as it does not have other opaque phases. The first phase and the second phase can also be colored as long as they are transparent. Here, in the present invention, the so-called transparent means that a sample with a thickness of 12.5 mm that is melted and filled into a glass tank with a length of 12.5 mm × a width of 12.5 mm × a depth of 45 mm is placed on a white paper with a black line of 1.5 points, and the black line can be clearly seen from the top of the thickness of 12.5 mm. In the case where the first phase and the second phase are both colorless and transparent and the multi-phase oily solid cosmetic of the present invention is colored and/or does not have other opaque phases, the multi-phase oily solid cosmetic of the present invention is colorless and transparent. The colorless and transparent multi-phase oil-based solid cosmetic can be a cosmetic with excellent aesthetics and high functionality that is colored after being applied to the skin or lips. That is, the cosmetic can be colorless and transparent in appearance by suppressing the color development of the component (C) dye in the second phase, and the component (C) dye can develop color when attached to the skin or lips.

The multi-phase oily solid cosmetic of the present invention can be formed into a three-dimensional shape. In particular, when the three-dimensional shape is a rod, it can be made into a two-layer rod, in which one of the first phase or the second phase is formed into a cylindrical shape with a hollow interior (outer layer), and the other phase (inner layer) is contained in the hollow. In this case, since the shape retention is excellent, it is preferred to use the first phase as the outer layer and the second phase as the inner layer. In addition, the mass ratio of the first phase to the second phase in the multi-phase oily solid cosmetic (first phase: second phase) is preferably 2:8 to 8:2, more preferably 3:7 to 7:3, and even more preferably 4:6 to 6:4.

Here, when the multi-phase oily solid cosmetic of the present invention is made into a two-layer rod-shaped material with the first phase as the outer layer and the second phase as the inner layer, there is a case where the second phase as the inner layer protrudes under high temperature conditions due to their respective differences, resulting in poor stability. The multi-phase oily solid cosmetic in the two-layer rod-shaped material preferably has a hardness of 10 or more in the second phase. If the hardness of the second phase is 10 or more, the shape retention of the rod shape and the demolding property from the mold during molding can be made into a cosmetic material with better shape retention and better demolding property. In addition, the multi-phase oily solid cosmetic in the two-layer rod-shaped material preferably has a hardness of 25 or more in the second phase. If the hardness of the second phase is 25 or more, a more stable multi-phase oily solid cosmetic material can be obtained in which the inner layer is not easily protruded even under high temperature conditions.

The first phase and the second phase, in addition to the aforementioned components (A) to (C) and the oil, may contain known components such as powders, surfactants, aqueous components, ultraviolet absorbers, moisturizers, antioxidants, beauty ingredients, preservatives, pigments, fragrances, etc., within the scope that does not impair the effects of the present invention.

The powder is not particularly limited to any shape such as sphere, plate, or needle, any particle size such as smoke, microparticle, or pigment grade, or any particle structure such as porous or non-porous, as long as it is a powder generally used in cosmetics. Examples of the powder include inorganic powders, glossy powders, organic powders, pigment powders, metal powders, and composite powders. Examples of powders include white inorganic pigments such as titanium oxide, zinc oxide, zirconium oxide, and barium sulfate; colored inorganic pigments such as iron oxide, carbon black, titanium-titanium oxide sinter, chromium oxide, chromium hydroxide, Prussian blue, and ultramarine; talc, muscovite, phlogopite, lithium mica, biotite, synthetic mica, and sericea; te), synthetic sericite, kaolin, silicon carbide, bentonite, anhydrous silicic acid, aluminum oxide, magnesium oxide, zirconium oxide, diatomaceous earth, aluminum silicate, magnesium aluminum methyl silicate, calcium silicate, barium silicate, magnesium silicate, calcium carbonate, magnesium carbonate, hydroxyapatite, boron nitride and other white powders; titanium dioxide coated mica, titanium dioxide coated oxychloride Glossy powders such as bismuth, ferroxene mica titanium, Prussian blue 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.; polyamide resin Synthetic resins such as styrene resins, polyethylene resins, polyacrylic resins, polyester resins, fluorine resins, cellulose resins, polystyrene resins, styrene-acrylic copolymer resins; organic polymer resin powders such as polypropylene resins and urethane resins; organic low molecular weight resins such as zinc stearate and N-acyl lysine Powders; natural organic powders such as silk powder and cellulose powder; organic pigment powders such as red 201, red 202, red 205, red 226, red 228, orange 203, orange 204, blue 404, yellow 401; black 401, brown 201, purple 401, blue 1, blue 2, blue 203, blue 205, green 3, green 201, green 204, green 205, green 401, green 402, yellow 4, yellow 5, yellow 202 (1), yellow 202 (2), yellow 203, yellow 402, yellow 403 (1) Organic pigment powders of zirconium, barium or alumina such as Yellow 406, Yellow 407, Orange 205, Orange 402, Red 2, Red 3, Red 102, Red 104(1), Red 105(1), Red 106, Red 227, Red 230(1), Red 231, Red 401, Red 502, Red 503, Red 504, Red 506, etc.; Metal powders such as aluminum powder, gold powder, silver powder, etc.; Composite powders such as titanium mica coated with titanium oxide microparticles, titanium mica coated with zinc oxide microparticles, titanium mica coated with barium sulfate, silicon dioxide containing titanium oxide, silicon dioxide containing zinc oxide, etc. As the above-mentioned powder, one or more of these powders can be used. The above-mentioned powder can be a fluorine compound, a silicone compound, a metal soap, lecithin, hydrogenated lecithin, collagen, hydrocarbons, higher fatty acids, higher alcohols, esters, waxes, waxes, surfactants, etc., and surface-treated by a known method as needed. The above-mentioned powder can also be a composite. In order to improve the transparency of the cosmetic, the first phase and the second phase are preferably free of or substantially free of the above-mentioned powder. The so-called substantially free of means that the content of the powder in the first phase and/or the second phase is preferably less than 1%, more preferably less than 0.5%, and further preferably less than 0.1%. The content of the powder in the first phase and the content of the powder in the second phase may be the same or different.

The surfactant is not particularly limited as long as it is a surfactant generally used in cosmetics. As the surfactant, nonionic surfactants, anionic surfactants, cationic surfactants, amphoteric surfactants, etc. can be used. As the surfactant, for example, glycerol fatty acid esters and their alkanediol adducts, polyglycerol fatty acid esters and their alkanediol adducts, sorbitan fatty acid esters and their alkanediol adducts, polyoxyethylene hardened castor oil, polyoxyalkylene alkyl co-modified organic polysiloxanes, polyether modified organic polysiloxanes, lecithin, etc. can be listed.

Any water-based component may be used as long as it is soluble in water. Examples of water-based components include, in addition to water, alcohols such as ethanol; glycols such as propylene glycol, 1,3-butylene glycol, 1,2-pentanediol, dipropylene glycol, and polyethylene glycol; glycerols such as glycerol, diglycerol, and polyglycerol; and plant extracts such as aloe vera, witch hazel, hamamelis, cucumber, lemon, lavender, and rose.

As ultraviolet absorbers, for example, phenyl ketone-based, PABA-based, cinnamic acid-based, salicylic acid-based ultraviolet absorbers, 4-tert-butyl-4'-methoxydiphenylmethane, oxybenzone, etc. can be listed. As moisturizers, for example, proteins, mucopolysaccharides, collagen, elastin, keratin, etc. can be listed. As antioxidants, for example, α-tocopherol, ascorbic acid, etc. can be listed. As beauty ingredients, for example, vitamins, anti-inflammatory agents, herbal medicines, etc. can be listed. As preservatives, for example, p-hydroxybenzoate, phenoxyethanol, etc. can be listed.

The multi-phase oily solid cosmetic of the present invention has an oil as a main component. The multi-phase oily solid cosmetic is, for example, lipstick, lip balm, blush, eye shadow, concealer, foundation, hair coloring agent, etc., preferably lipstick.

The manufacturing method of the multi-phase oily solid cosmetic of the present invention is not particularly limited. For example, the multi-phase oily solid cosmetic can be obtained as follows. Component (A), the first oil agent and other components as needed are heated to above the melting point of component (A), and kneaded to prepare the first phase. Component (B), component (C), the second oil agent and other components as needed are heated to above the melting point of component (B), and kneaded to prepare the second phase. The first phase is filled into a container provided with a partition, and after cooling at room temperature, the partition is removed, and the second phase is filled in the gap, and cooled to solidify. In this way, a multi-phase oily solid cosmetic can be obtained. In another embodiment, component (A), the first oil agent, and other components as needed are heated to a temperature above the melting point of component (A) and kneaded to prepare the first phase. Component (B), component (C), the second oil agent, and other components as needed are heated to a temperature above the melting point of component (B) and kneaded to prepare the second phase. A mold for the inner layer (hereinafter referred to as the inner layer mold) is fixed in a rod mold, and the first phase is filled into the outer layer side of the rod mold (between the rod mold and the inner layer mold). After cooling and solidification, the inner layer mold is removed, and the second phase is filled into the gap, and then cooled and solidified. In this way, a multi-phase oily solid cosmetic in the form of a two-layer rod can be obtained.

When the multi-phase oily solid cosmetic of the present invention is made into a two-layer stick, the diameter of the cosmetic is preferably 9 to 30 mm, and more preferably 11 to 20 mm. If it is within this range, it becomes more usable. From the perspective of making the cosmetic more aesthetic and shape-retaining, the diameter of the inner layer is preferably 4 to 20 mm, and more preferably 5 to 10 mm. From the perspective of making the cosmetic more aesthetic and usable, the cross-sectional area of the inner layer is preferably 10 to 50%, and more preferably 20 to 40% of the cross-sectional area of the stick-shaped multi-phase oily solid cosmetic. [Example]

The present invention is described in detail below with reference to the following embodiments. In addition, the present invention is not limited to the above embodiments.

Example 1: Stick lipsticks 1 to 14 [Preparation of oily solid composition] The first phase with the components and contents shown in Table 1 and the second phase with the components and contents shown in Table 2 were prepared by the following method, and the transparency and coloring of the appearance were visually confirmed and the hardness was measured. For the transparency of the appearance, a sample with a thickness of 12.5 mm filled with melt into a glass tank with a length of 12.5 mm × a width of 12.5 mm × a depth of 45 mm was placed on a white paper with a 1.5-point black line drawn on it. The sample with a thickness of 12.5 mm that could clearly see the black line from the top was evaluated as transparent, and the other samples were evaluated as opaque. The first phase composition in Table 1 and the second phase composition in Table 2 were all transparent. The hardness is set to the following resistance value: the molten composition is filled into a wide-mouth container, left to stand at 25°C for 12 hours to solidify, and then a 2 mm needle is inserted at 6 cm/min using a FUDOH rheometer RTC2002D (manufactured by RHEOTECH) and a 3 mm ϕ adapter.

[Table 1] (%) Raw material name/ Ingredients Phase 1 1-1 1-2 1-3 1-6 1 Dibutyl lauryl glutamic acid amide ※1 3.5 0.385 6.93 3.5 2 Dibutyl ethylhexanoyl glutamic acid amide ※2 2 0.22 3.96 2 3 Hydrogenated polydecene※3 Residue Residue Residue Residue 4 Tris-1,3-Tridecyl Trimellitate※4 40 40 40 40 5 Diisostearyl Apple 40 40 40 40 6 Phenoxyethanol 0.3 0.3 0.3 0.3 7 Red No. 218 ※5 - - - 0.15 8 (Acrylic acid/alkyl acrylate (C10-C30)) copolymer ※6 - - - 0.08 Appearance coloring Colorless Colorless Colorless Red Transparency of appearance transparent transparent transparent transparent hardness 250 100 400 250

※1: Amino acid based gelling agent GP-1 (manufactured by Ajinomoto) ※2: Amino acid based gelling agent EB-21 (manufactured by Ajinomoto) ※3: NOMCORT HP-30 (manufactured by Nisshin OilliO Group) ※4: DOCADIT TM 13 N (manufactured by Nisshin OilliO Group) ※5: TPP Red No. 218 (manufactured by Keisi Chemicals) ※6: PEMULEN TR-2 (manufactured by Lubrizol)

(Manufacturing method) A. Melt components (1) to (5) uniformly at 130°C. B. Add components (6) to (8) to A and mix uniformly.

[Table 2] (%) Raw material name/ Ingredients Second phase 2-1 2-2 2-3 2-4 2-5 2-6 2-7 2-8 2-9 2-10 2-11 2-12 1 Palmitic acid dextrin ※7 35 20 17.5 15 12.5 10 20 20 20 - 20 20 2 12-Hydroxystearic acid※8 - - - - - - - - - 20 - - 3 Tris-1,3-Tridecyl Trimellitate※4 30 30 30 30 30 30 Residue - - 30 30 30 4 Diisostearyl Apple 10 10 10 10 10 10 - Residue - 10 10 10 5 Polyglyceryl-2 Triisostearate Residue Residue Residue Residue Residue Residue - - Residue Residue Residue Residue 6 Silica dimethyl silicium ※9 0.4 0.4 0.4 0.4 0.4 0.4 0.4 0.4 0.4 0.4 0.4 0.4 7 Phenoxyethanol 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 8 Red No. 218 ※5 0.15 0.15 0.15 0.15 0.15 0.15 0.15 0.15 0.15 0.15 0.01 0.5 9 (Acrylic acid/alkyl acrylate (C10-C30)) copolymer ※6 0.08 0.08 0.08 0.08 0.08 0.08 0.08 0.08 0.08 0.08 0.08 0.08 Appearance coloring Colorless Colorless Colorless Colorless Colorless Colorless Colorless Colorless Colorless Colorless Colorless Light red Transparency of appearance transparent transparent transparent transparent transparent transparent transparent transparent transparent opaque transparent transparent hardness 230 47 35 25 20 11 53 40 70 200 49 43

※7: Rheopearl KL2 (manufactured by Chiba Flour Mills) ※8: 12-Hydroxystearic acid (manufactured by Ito Oil Seisakusho) ※9: AEROSIL R976S (manufactured by Nippon Aerosil Co., Ltd.)

A. Dissolve components (1) to (5) uniformly at 90°C. B. Add components (6) to (9) to A and mix uniformly.

[Manufacturing of stick-shaped lipstick] Using the obtained composition of the first phase and the second phase, a stick-shaped lipstick is manufactured according to the following process according to Table 3. An inner layer mold with a bottom area of 0.6 ^cm2 x height of 4 cm is fixed to the inner side of a stick-shaped mold (stick mold) having a gap of 1.2 cm in diameter x 4 cm in height on the inner side. The first phase is melted at a temperature of 130°C or higher and filled into the outer layer side of the stick mold (between the stick mold and the inner layer mold) until the height of the mold. After the first phase is solidified, the inner layer mold is removed, and the second phase melted at a temperature of 90°C or higher is filled into the gap, and cooled to solidify. The first phase and the second phase removed from the mold are filled into a container. In this way, two-layer stick-shaped lipsticks 1 to 14 with a transparent appearance having the first phase as the outer layer and the second phase as the inner layer are obtained. The obtained lipsticks 1 to 14 were evaluated by the following evaluation method. The evaluation results are shown in Table 3.

[Table 3] Lipstick 1 Lipstick 2 Lipstick 3 Lipstick 4 Lipstick 5 Lipstick 6 Lipstick 7 Lipstick 8 Lipstick 9 Lipstick 10 Lipstick 11 Lipstick 12 Lipstick 13 Lipstick 14 Phase 1 1-1 1-1 1-1 1-1 1-1 1-1 1-1 1-1 1-1 1-2 1-3 1-6 1-1 1-1 Second phase 2-2 2-3 2-4 2-7 2-8 2-9 2-1 2-5 2-6 2-2 2-2 2-2 2-11 2-12 Appearance (outer layer) Colorless and transparent Colorless and transparent Colorless and transparent Colorless and transparent Colorless and transparent Colorless and transparent Colorless and transparent Colorless and transparent Colorless and transparent Colorless and transparent Colorless and transparent Red transparent Colorless and transparent Colorless and transparent Appearance (Inner Layer) Colorless and transparent Colorless and transparent Colorless and transparent Colorless and transparent Colorless and transparent Colorless and transparent Colorless and transparent Colorless and transparent Colorless and transparent Colorless and transparent Colorless and transparent Colorless and transparent Colorless and transparent Light red transparent Ⅰ. Usability A A B A A B C B C B B B A A Ⅱ. Filling and moldability (mold release) A A A A A A A B B A A A A A Ⅲ. High temperature stability (protrusion of inner layer) A A A A A A A B A A A A A A IV. High temperature stability (inner layer shrinkage) A A A A A A A A A A A A A A

(Evaluation method) I. Usability A panel of 10 experts evaluated the usability (whether it has a smooth feel) of each lipstick in Table 3. Specifically, when applied to the lips, they evaluated whether the inner layer and the outer layer were smooth and evenly attached to the lips. The evaluation was conducted and scored on a 7-level scale using the following absolute evaluation criteria. For each lipstick, the average score of all the panelists was calculated and judged using the following judgment criteria.

Absolute evaluation criteria (rating): (rating) 6      : Very good 5      : Good 4      : Slightly good 3      : Average 2      : Slightly bad 1      : Poor 0      : Very bad Judgment criteria (judgment): (average of ratings) A      : More than 4.5 points                     : Very good B      : More than 3 points and less than 4.5 points  : Good C      : Less than 3 points　　　　　　     : Poor

II. Filling and forming properties (mold release properties) Visually check whether the top surface of the inner layer of lipstick peels off when it is removed from the mold during forming. Those with no obvious peeling are rated A, and those with obvious peeling are rated B.

III. High temperature stability (protrusion of inner layer) Visually check whether there is protrusion of the inner layer after storage at 50℃ for 1 week. The evaluation of A is given to those without protrusion of 0.5mm or more, and B is given to those with protrusion of 0.5mm or more.

IV. High temperature stability (inner layer shrinkage) After being stored at 50°C for 1 week, visually check whether the inner layer shrinks. The samples with no obvious gap between the outer layer and the inner layer are rated A, and the samples with obvious gap between the outer layer and the inner layer are rated B.

As can be seen from the results in Table 3, lipsticks 1 to 14 are all transparent and highly aesthetic. In particular, lipsticks 1, 2, 4, and 5 are lipsticks that have a colorless and transparent appearance with high aesthetics, a smooth feel, and a makeup effect due to dyes, and are highly stable in high temperature areas. Lipstick 8, which has a low hardness of the inner layer, is prominent in the inner layer. In addition, lipstick 9, which has a low hardness of the inner layer, may not be able to maintain its shape when applied. Lipstick 7, which has high hardness of both the inner layer and the outer layer, has slightly poor adhesion when used. Lipsticks 1 to 11 and 13 are colorless and transparent in the inner layer and the outer layer, and the lipstick is beautiful as a whole and is colorless and transparent, and has high aesthetics. Furthermore, lipsticks 1 to 11 and 13 are those in which the dye develops bright color only after being applied to the lips, and are those in which the makeup effect caused by the dye is excellent.

Example 2: Tint cheek stick Phase 1 (outer layer) Ingredients                                                        (%) (1) Dibutyl lauryl glucoside ※1                          8 (2) Dibutyl ethylhexyl glucoside ※2                   2 (3) Diisostearyl apple acid                                     50 (4) Hydrogenated polydecene                                        Residue (5) Tritridecyl trimellitate                                   20 (6) Phenoxyethanol                                             0.2 (7) Coix lachryma-jobi seed extract                                          0.1 (8) Raspberry extract                                            0.1 Phase II (Inner layer) Ingredients                                               (%) (1) Dextrin palmitate                                         15 (2) Dextrin (2-ethylhexanoate) (Palmitoyl) Dextrin                            5 (3) Diisostearyl apple acid                                     30 (4) Tritridecyl trimellitate                                    20 (5) Diglyceryl triisostearate                             Residue (6) Phenoxyethanol                                             0.1 (7) Red No. 218                                            0.1 (8) Spices                                                         0.2

(Manufacturing method) First phase A. Melt components (1) to (8) uniformly at 130°C. Second phase A. Melt components (1) to (5) uniformly at 90°C. B. Add components (6) to (8) to A and mix uniformly. Stick-shaped color-developing blush A stick-shaped inner mold is fixed to the inner side of a stick-shaped mold (stick mold) having a gap inside. The first phase is melted at a temperature of 130°C or higher and filled into the outer side of the stick mold (between the stick mold and the inner mold) up to the height of the mold. After the first phase solidifies, the inner mold is removed, and the second phase melted at a temperature of 90°C or higher is filled into the gap, and then cooled to solidify. The first phase and the second phase removed from the mold are filled into a container. Thus, a transparent stick-shaped blush with the first phase as the outer layer and the second phase as the inner layer is obtained. The mass ratio of the first phase to the second phase in the stick-shaped blush (first phase: second phase) is 3:7.

The obtained stick-shaped blush has a colorless and transparent outer layer and inner layer, and has a smooth feel, a makeup effect caused by the dye, excellent filling formability, high temperature stability, and aesthetics.

Example 3: Colored lip balm First phase (outer layer) Ingredients                                                        (%) (1) Dibutyl lauryl glucoside ※1                        4 (2) Dibutyl ethylhexyl glucoside ※2                   1 (3) Diisostearyl apple acid                                 40 (4) Hydrogenated polydecene                                        Residue (5) Tritridecyl trimellitate                                    20 (6) Polyglyceryl-10 caprylate                                 20 (7) Methylphenyl polysiloxane                                     5 (8) Ethylhexylglycerin                                          0.2 Second phase (inner layer) Ingredients                                                        (%) (1) Dextrin palmitate                                         10 (2) Dextrin (2-ethylhexanoate)                            5 (3) Diisostearyl apple acid                                     20 (4) Tritridecyl trimellitate                                    20 (5) Ethylhexyl p-methoxycinnamate                            20 (6) Diglyceryl triisostearate                             Residue (7) Polybutene※10                                         20 (8) Ethylhexylglycerin                                          0.1 (9) Red No. 218                                               0.1 (10) DL-α-Tocopherol acetate                                    0.5 (11) Fragrance                                                     0.2 ※10: Purified polybutene 100F (manufactured by JAPAN NATURAL PRODUCTS)

(Manufacturing method) First phase A. Melt components (1) to (8) uniformly at 130°C. Second phase A. Melt components (1) to (7) uniformly at 90°C. B. Add components (8) to (11) to A and mix uniformly. Coloring lip balm A star-shaped inner mold is fixed in the center of a resin disk, and the first phase is melted at a temperature of 130°C or higher and filled to the outer side of the resin disk (between the outer edge of the resin disk and the inner mold) until the height of the resin disk. After the first phase solidifies, the inner mold is removed, and the second phase melted at a temperature of 90°C or higher is filled in the gap, and then cooled and solidified. The first phase and second phase removed from the mold are filled into a container. Thus, a transparent coloring lip balm with the first phase as the outer layer and the second phase as the inner layer is obtained. The mass ratio of the first phase to the second phase in the coloring lip balm (first phase: second phase) is 4:6.

The obtained color-developing lip balm has a colorless and transparent outer layer and an inner layer, and has a smooth feel, a makeup effect caused by the dye, excellent filling formability, high temperature stability, and aesthetics.

Example 4: Color-developing eye shadow stick First phase (outer layer) Ingredients                                                           (%) (1) Dibutyl lauryl glutamic acid amide                           5 (2) Polyglyceryl-10 isostearate                             20 (3) Triisostearate diglyceryl                         Residue (4) Decyltetradecyl alcohol                                         10 (5) Hydrogenated polydecene                                         50 (6) Polyethylene terephthalate ・Polymethyl methacrylate laminated film powder               3 (7) Phenoxyethanol                                                0.2 Second phase (inner layer) Ingredients                                                       (%) (1) Dextrin palmitate                                         10 (2) Dextrin (palmitic acid and 2-ethylhexanoate)                       5 (3) Diisostearyl apple acid                                 10 (4) Tritridecyl trimellitate                                    20 (5) Ethylhexyl p-methoxycinnamate                            20 (6) Triethylhexanoin   Residue (7) Polybutene※10                                         20 (8) Polyethylene terephthalate ・Polymethyl methacrylate laminated film powder 5 (9) Phenoxyethanol                                                 0.1 (10) Oil-soluble rosemary                                     0.1 (11) Red No. 218                                        0.1 (12) Fragrance                                                 0.2

(Manufacturing method) First phase A. Melt components (1) to (5) uniformly at 130°C. B. Add components (6) and (7) to component A and mix uniformly. Second phase A. Melt components (1) to (3) uniformly at 90°C. B. Add components (4) to (12) to component A and mix uniformly. Color-developing eye shadow stick A rod-shaped inner mold is fixed to the inner side of a rod-shaped mold (rod mold) having a gap on the inner side. The first phase is melted at a temperature of 130°C or higher and filled to the outer side of the rod mold (between the rod side and the inner mold) until the height of the mold. After the first phase solidifies, the inner mold is removed, and the second phase melted at a temperature of 90°C or higher is filled in the gap, and then cooled to solidify. The first phase and the second phase removed from the mold are filled into a container. Thus, a transparent color eyeshadow stick having the first phase as the outer layer and the second phase as the inner layer is obtained. The mass ratio of the first phase to the second phase in the color eyeshadow stick (first phase: second phase) is 6:4.

The obtained color-developing eye shadow stick has a colorless and transparent outer layer and an inner layer, and has a smooth feel, a makeup effect caused by the dye, excellent filling and forming properties, high temperature stability, and aesthetics.

Example 5: Hair wax Phase 1 Ingredients                                                   (%) (1) Dibutyl lauryl glucoside ※1                          8 (2) Dibutyl ethylhexanoyl glucoside ※2                   2 (3) Diisostearyl apple acid                                     50 (4) Hydrogenated polydecene                                        Residue (5) Tritridecyl trimellitate                                 20 (6) Phenoxyethanol                                             0.2 (7) Cysteine                                             0.1 Phase 2 Ingredients                                                  (%) (1) Dextrin palmitate                                         15 (2) Diisostearyl apple acid                                 30 (3) Tritridecyl trimellitate                                20 (4) Diglyceryl triisostearate                         Residue (5) Phenoxyethanol                                             0.1 (6) Red 218                                             0.1 (7) Fragrance                                                   0.2 Phase III Ingredients                                                     (%) (1) Dextrin palmitate                                         15 (2) Diisostearyl apple acid 30 (3) Tritridecyl trimellitate                                   20 (4) Diglyceryl triisostearate                         Residue (5) Phenoxyethanol                                             0.1 (6) Ferrum/titanium oxide coated glass powder                   0.5 (7) Red 223                                             0.05 (8) Fragrance                                                     0.2

(Manufacturing method) First phase A. Melt components (1) to (5) uniformly at 130°C. B. Add components (6) and (7) to component A and mix uniformly. Second phase (red transparent) A. Melt components (1) to (5) uniformly at 90°C. B. Add components (6) and (7) to component A and mix uniformly. Third phase (colorless transparent) A. Melt components (1) to (5) uniformly at 90°C. B. Add components (6) to (8) to component A and mix uniformly. Hair wax Two partition plates are fixed in parallel to the inside of a wide-mouth container so that the inside of the wide-mouth container forms three zones. The first phase is melted at a temperature of 130°C or higher and filled into the center zone of the three zones up to the height of the wide-mouth container. After the first phase solidifies, remove the two partitions and fill one of the gaps at the two ends with the second phase (red and transparent) melted at a temperature above 90°C. Fill the other gap with the third phase (colorless and transparent) melted at a temperature above 90°C. Cool the second and third phases and solidify to obtain a transparent hair wax. The mass ratio of the first phase, second phase, and third phase in the hair wax (first phase: second phase: third phase) is 2:2:3.

The obtained hair wax has a colorless and transparent first phase and a transparent third phase, and a red and transparent second phase, and has excellent smooth feel, makeup effect, filling and forming properties, high temperature stability, and aesthetics.

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Claims (6)

A multi-phase oily solid cosmetic has a transparent first phase and a transparent second phase connected to each other, the first phase contains component (A) an amino acid-based peptizer and a first oil, the second phase contains component (B) a dextrin fatty acid ester, component (C) a dye, and a second oil, the multi-phase oily solid cosmetic is a two-layer stick with the first phase as the outer layer and the second phase as the inner layer, and the second phase contains 13.5-25% by mass of the component (B). The multi-phase oily solid cosmetic of claim 1, wherein the ingredient (A) comprises one or more selected from dibutyl lauroyl glutamide and dibutyl ethylhexanoyl glutamide. A multi-phase oily solid cosmetic as claimed in claim 1 or 2, wherein the first oil agent comprises one or more selected from diisostearate, tritridecyl trimellitate and polyglyceryl-2 triisostearate. A multi-phase oily solid cosmetic as claimed in claim 1 or 2, wherein the second oil agent comprises one or more selected from diisostearate apple acid, tri-tridecyl trimellitate and polyglyceryl-2 triisostearate. The multi-phase oily solid cosmetic of claim 1 or 2, wherein the second phase contains 0.05-0.3 mass % of the ingredient (C). A multi-phase oily solid cosmetic as claimed in claim 1 or 2, wherein the hardness of the second phase is less than 100.