Transparent solid composition

Abstract

To provide a method for reducing cracks in transparent solid compositions containing amino acid-based gelling agents.SOLUTION: The present invention provides a method for reducing cracks, including blending a dimer diol and / or a glycerin fatty acid ester with a transparent solid cosmetic preparation containing an amino acid-based gelling agent; a transparent solid cosmetic preparation containing an amino acid-based gelling agent and a dimer diol and / or a glycerin fatty acid ester; and a premix for preparing such a cosmetic preparation.SELECTED DRAWING: Figure 4

Description

[Technical Field]

[0001] The present invention relates to a solid cosmetic preparation containing an amino acid-based gelling agent, a premix for the cosmetic preparation, and a method for reducing cracks in the cosmetic preparation. [Background technology]

[0002] Amino acid gelling agents such as dibutyl lauroyl glutamide (GP-1) and dibutyl ethylhexanoyl glutamide (EB-21) are known to be gelling agents capable of producing gel compositions with excellent gel strength and transparency (Patent Document 1). Furthermore, in order to make the handling of amino acid-based gelling agents easier, combinations with various oily agents have been investigated (Patent Document 2), and in order to provide cosmetics that have both an excellent feel in use and sufficient storage stability, combinations of amino acid-based oil gelling agents, polyamide resins, and specific monoesters have been investigated (Patent Document 3).

[0003] On the other hand, it has been described that a specific combination of dimer diol, branched primary alcohol, glyceryl mono-fatty acid ester and ethyl cellulose polymer can be used as a transparent gelling agent (Patent Document 4). [Prior art documents] [Patent documents]

[0004] [Patent Document 1] Japanese Patent Application Laid-Open No. 2002-316971 [Patent Document 2] Japanese Patent Application Publication No. 2018-154809 [Patent Document 3] WO2009 / 139094 publication [Patent Document 4] WO2022 / 129318 publication Summary of the Invention [Problem to be solved by the invention]

[0005] Transparent solid cosmetics can be effectively utilized to allow the user to see through to the inside of the formulation. For example, in contrast to formulations that aim for a matte effect upon application, transparency can be utilized to create makeup that imparts a glossy or fresh (lustrous) appearance to the applied surface. In addition, by incorporating appropriate amounts of decorations such as glitter, pearlescent paint, holograms, flowers, and gold leaf into the formulation and solidifying it, the appearance can be effectively created, significantly increasing the added value of the product. On the other hand, while minute internal cracks (fissures) that occur when solidifying and molding a formulation do not usually have an effect on opaque solid formulations, transparent solid formulations have the property of exposing the interior, so measures to prevent cracks from occurring within the formulation are also required. Similarly, the present inventors have been faced with the problem that conventional cosmetics produced using amino acid-based gelling agents, although having the above-mentioned characteristic of transparency, are prone to cracking. [Means for solving the problem]

[0006] Through extensive research, the present inventors discovered that cracking can be reduced by combining a dimer diol and / or a glycerin fatty acid ester in a transparent solid composition that uses an amino acid-based gelling agent, and as a result of further research, they have completed the present invention.

[0007] That is, the present invention relates to the following. [1] A method for reducing cracks in a transparent solid cosmetic comprising blending a dimer diol and / or a glycerin fatty acid ester with the transparent solid cosmetic containing an amino acid-based gelling agent. [2] The method according to [1], further comprising incorporating a fatty acid having 3 to 22 carbon atoms and / or a higher alcohol having 8 to 22 carbon atoms into the transparent solid cosmetic preparation.

[0008] [3] Amino acid-based gelling agents, a fatty acid having 3 to 22 carbon atoms and / or a higher alcohol having 8 to 22 carbon atoms, and Dimer diol and / or glycerin fatty acid ester A premix for a transparent solid cosmetic comprising: [4] Amino acid-based gelling agents, a fatty acid having 3 to 22 carbon atoms and / or a higher alcohol having 8 to 22 carbon atoms, and Dimer diol and / or glycerin fatty acid ester A premix for transparent solid cosmetics comprising:

[0009] [5] Amino acid-based gelling agents, Dimer diol and / or glycerin fatty acid ester, and Oil Including, Contains no ethyl cellulose polymer or less than 5% by weight of ethyl cellulose polymer, Transparent solid cosmetic. [9] The transparent solid cosmetic preparation according to [5], which contains dimer diol. [Effects of the Invention]

[0010] By combining an amino acid-based gelling agent with a dimer diol and / or a glycerin fatty acid ester, a transparent solid cosmetic preparation with reduced cracking can be provided.

[0011] Furthermore, by combining an amino acid-based gelling agent with a dimer diol and / or a glycerin fatty acid ester and a solvent, it is possible to reduce the occurrence of cracks and provide a premix for transparent solid cosmetics that is easy to handle. [Brief explanation of the drawings]

[0012] [Figure 1] Photographs of the formulations in Table 1. [Figure 2] Photographs of the formulations in Table 2. [Figure 3]Photographs of the formulations in Table 3. [Figure 4] Photographs of the formulations in Table 4. [Figure 5] Photographs of the formulations in Table 5. [Figure 6] Photographs of the formulations in Table 6. [Figure 7] Photographs of the formulations in Table 7 (Comparative Example G and Example G1). [Figure 8] Photographs of the formulations in Table 8. [Figure 9] Photographs of the formulations in Table 9. [Figure 10] Photographs of the formulations in Table 10. [Figure 11] Photographs of the formulations in Table 11. [Figure 12] Photographs of the formulations in Table 12. [Figure 13] Photographs of the formulations in Tables 13 and 14. [Figure 14] Photographs of the formulations in Table 15. DETAILED DESCRIPTION OF THE INVENTION

[0013] In this specification, a "solid cosmetic" refers to a cosmetic that can maintain a solid form at room temperature (25°C). As used herein, the term "cosmetics" refers to materials that can be used in the manufacture of body care products, skin care products, makeup products, hair care products, fragrance products, and the like, but is not limited thereto. Body care products include, but are not limited to, UV care products, deodorant products, body skin care products, body fragrance products, body cleansing products, and the like. Skin care products include, but are not limited to, cleansing products, facial cleansers, whitening cosmetics, UV protection cosmetics, anti-aging products, and the like. Makeup products include, but are not limited to, foundation, lip color, lipstick, lip balm, eyeliner, and the like. Hair care products include, but are not limited to, hair sticks, hair styling waxes, hair treatments, one-day hair colors, hair glosses, and the like. Fragrance products include, but are not limited to, perfumes, eau de toilette, eau de cologne, eau de parfum, roll-on fragrances, stick-type solid perfumes, and the like.

[0014] As used herein, the term "transparent" means that the solid cosmetic is not completely opaque. In one embodiment of the present invention, a transmittance of 30% or more, as will be described later, can be said to be sufficiently transparent, and a transmittance of 60% or more can be said to be good transparency. As used herein, the term "crack" refers to minute fissures that are visible to the naked eye in a transparent solid cosmetic preparation.

[0015] <Amino acid-based gelling agent> As used herein, the term "amino acid-based gelling agent" refers to a gelling agent containing an amino acid residue. Any amino acid gelling agent that is commonly used in cosmetics can be used without any limitations.

[0016] Specific examples include amino acid derivatives represented by the following formula (1): [ka] During the ceremony, R 1 and R 2 C1 to C may be the same or different 10 is a straight or branched chain alkyl group; R 3 is C1~C 26 is a straight or branched chain alkyl group; n is an integer of 1 or 2.

[0017] Specifically, dibutyl lauroyl glutamide and dibutyl ethyl hexanoyl glutamide are preferred. Commercially available products of these include dibutyl lauroyl glutamide (GP-1) and dibutyl ethyl hexanoyl glutamide (EB-21) manufactured by Ajinomoto Co., Inc.

[0018] By using a combination of amino acid-based gelling agents, highly transparent cosmetic materials and cosmetics can be provided. In one embodiment of the present invention, there is provided a compound represented by the above formula (I), wherein R 3 C1~C 26 a compound represented by the formula (I) in which R 3 C1~C 26 It is preferable to combine the compound represented by the above formula (I) with a compound having a branched alkyl group of the formula (I), for example, dibutyl ethylhexanoyl glutamide (EB-21). 3 C1~C 26 and a compound represented by the above formula (I), wherein R 3 C1~C 26 The compounding ratio of the compound having a branched chain alkyl group to the compound having a branched chain alkyl group can be selected appropriately, but from the viewpoint of transmittance, it is preferably 75:25 to 25:75, more preferably 75:25 to 50:50.

[0019] In one embodiment of the present invention, when dibutyl lauroyl glutamide (GP-1) and dibutyl ethylhexanoyl glutamide (EB-21) are contained, the blending ratio is determined from the viewpoint of transmittance, and the blending ratio (GP-1:EB-21) is preferably 75:25 to 25:75, and more preferably 75:25 to 50:50. By using a blending ratio within this range, a cosmetic preparation with high transparency can be produced.

[0020] From the viewpoint of improving workability, the amino acid gelling agent can also be used as a premix gel in which it is diluted and dissolved in a solvent. Specifically, it is preferable to use a premix gel in which an amino acid gelling agent is dissolved in a solvent in advance. The solvent is not limited as long as it can be gelled by the amino acid gelling agent, but fatty acids having 3 to 22 carbon atoms or fatty acids having 3 to 22 carbon atoms and higher alcohols having 8 to 22 carbon atoms are preferred. From the viewpoint of high transparency, octyldodecanol, isostearic acid, etc. are more preferred. The content of the amino acid gelling agent in the premix gel is preferably 10 to 45% by weight, more preferably 15 to 40% by weight, and even more preferably 20 to 36% by weight, from the viewpoints of improving workability, reducing oil gelation, and reducing oil separation from the premix gel itself. Commercially available premix gels include AJK-OD2046 (containing 20% ​​by weight of an amino acid-based gelling agent and 80% by weight of octyldodecanol) and AJK-IS3613 (containing 36% by weight of an amino acid-based gelling agent and 64% by weight of isostearic acid) manufactured by Kokyu Alcohol Kogyo Co., Ltd.

[0021] <Dimer diol> As used herein, a "dimer diol" is a diol obtained by reducing a dimer acid. Any dimer diol that is commonly used in cosmetics can be used without any limitations. Dimer acid, the raw material for dimer diol, is a dimer obtained by, for example, polymerizing unsaturated fatty acids or their lower alcohol esters. Specifically, it can be synthesized by reacting unsaturated fatty acids such as oleic acid, linoleic acid, and linolenic acid or their lower alcohol esters through thermal polymerization, such as the Diels-Alder reaction, or other reaction methods. Unreacted fatty acids may remain in the resulting dimer acid as long as the effects of the present invention are not impaired. The dimer acid is preferably a dimer of an unsaturated fatty acid having 12 to 24 carbon atoms or a lower alcohol ester thereof. Examples of such unsaturated fatty acids include myristoleic acid, palmitoleic acid, oleic acid, elaidic acid, vaccenic acid, gadoleic acid, erucic acid, nervonic acid, linoleic acid, linolenic acid, and their lower alcohol esters having 1 to 3 carbon atoms. Preferably, the dimer acid is an unsaturated fatty acid having 18 carbon atoms, with oleic acid or linoleic acid or their lower alcohol esters being particularly preferred. Alternatively, a dimer acid obtained by dimerization and then hydrogenating the remaining unsaturated double bonds may be used.

[0022] The dimer diol may be a cyclic isomer, a non-cyclic isomer, or a mixture thereof. In a preferred embodiment of the present invention, the dimer diol contains 36 carbon atoms. Commercially available products include Radianol manufactured by Oleon. TM 1990, Pripol by Croda TM 2033 and Pripol TM 2043 is one example.

[0023] <Glycerin fatty acid ester> As used herein, "glycerin fatty acid ester" refers to an ester of glycerin and a fatty acid, where the glycerin may be a polyglycerin, and the ester may be a monoester or a polyester, but in the case of a polyester, it has at least one hydroxyl group. Any glycerin fatty acid ester that is commonly used in cosmetics can be used without any limitations. As the polyglycerin used as a raw material for the glycerin fatty acid ester, polyglycerin having an average degree of polymerization of 2 to 10 is preferred. Fatty acids that can be used as raw materials for glycerin fatty acid esters include saturated or unsaturated fatty acids having 2 to 26 carbon atoms, but saturated or unsaturated fatty acids having 6 to 18 carbon atoms are preferred, and specific examples include capric acid, stearic acid, oleic acid, etc. The fatty acids may be a combination of different fatty acids.

[0024] Specific examples of glycerin fatty acid esters include: Glyceryl heptanoate, glyceryl octanoate, glyceryl caprylate, glyceryl caprate, caprylic / capric glyceryl, glyceryl laurate, glyceryl myristate, glyceryl pentadecanoate, glyceryl palmitate, glyceryl linoleate, glyceryl oleate, glyceryl stearate, glyceryl isostearate, glyceryl arachidonate, glyceryl arachidate, glyceryl erucate, glyceryl behenate, glyceryl eicosanedioate, undecyl Glyceryl oleate, Glyceryl behenate / eicosanedioate, Glyceryl docosahexaenoate, Glyceryl stearate acetate, Glyceryl lactate, Glyceryl lactate, Glyceryl citrate, Glyceryl malate, Glyceryl succinate, Glyceryl oleate citrate, Glyceryl stearate citrate, Hydrogenated palm oil fatty acid glycerides citrate, Hydrogenated vegetable fatty acid glycerides citrate, Glyceryl ethylhexanoate, Glyceryl citrate / lactate / linoleate / oleate, Caprylic / capric triglyceride Glyceryl Caprate / Capric Acid / Myristic Acid / Stearic Acid, Glyceryl Behenate / Isostearate / Eicosanedioate, Glyceryl Ricinoleate, Glyceryl Acetate Ricinoleate, Glyceryl Hydroxystearate, Glyceryl Acetate Ricinoleate, Glyceryl Acetate Ricinoleate, Glyceryl Cocoate, Glyceryl Olivate, Hydrogenated Glyceryl Palmate, Glyceryl Palm Kernel Oilate, Glyceryl Macadamia Nut Fatty Acid, Glyceryl Rapeseed Oil Fatty Acid, Glyceryl Almond Fatty Acid Glyceryl Borage Oil, Glyceryl Linseed Oil, Glyceryl Avocado Oil, Glyceryl Wheat Germ Oil, Glyceryl Safflower Oil, Glyceryl Rosinate, Hydrogenated Glyceryl Rosinate, Glyceryl Abietate, Hydrogenated Glyceryl Abietate, Hydrogenated Glyceryl Dehydroabietate, Hydrogenated Glyceryl Tetrahydroabietate, Tall Glycerides, Phytosteryl Canola Glycerides, Hydrogenated Glyceryl Soybean Glycerides, Hydrogenated Glyceryl Cottonseed GlyceridesGlyceryl Abietic Acid / Malic Acid, Glyceryl Isostearate / Myristic Acid, Glyceryl Ethylhexanoate / Stearate / Adipic Acid, Glyceryl Acetate, Glyceryl Ricinoleate Acetate, Glyceryl Monostearate Acetate, Glyceryl Cottonseed Fatty Acid, Hydrogenated Glyceryl Rapeseed Fatty Acid, Hydrogenated Glyceryl Rapeseed Fatty Acid, Hydrogenated Glyceryl Soybean Fatty Acid, Hydrogenated Glyceryl Soybean Fatty Acid, Hydrogenated Cocoglycerides Monoesters of glycerin or polyglycerin with fatty acids, such as hydrogenated (dehydroabietic acid / tetrahydroabietic acid) glyceryl, hydrolyzed alkyl hyaluronate (C12-13) glyceryl, branched fatty acid (C12-31) glyceryl, branched fatty acid (C10-40) glyceryl, linolenate, coconut fatty acid glyceryl, monoacetate and monostearate glyceryl, methacrylate glyceryl, and acetate glyceryl;

[0025] Polyglyceryl dicaprylate, Polyglyceryl-2 dicaprylate, Polyglyceryl-3 dicaprylate, Polyglyceryl-6 dicaprylate, Polyglyceryl-10 dicaprylate, Polyglyceryl dicaprate, Polyglyceryl-2 dicaprate, Polyglyceryl-3 dicaprate, Polyglyceryl-6 dicaprate, Polyglyceryl-10 dicaprate, Polyglyceryl dimyristate, Polyglyceryl-2 dimyristate, Polyglyceryl-3 dimyristate, Polyglyceryl-6 dimyristate, Polyglyceryl-10 dimyristate, Polyglyceryl dioleate, Polyglyceryl-2 dioleate, Polyglyceryl-3 dioleate, Polyglyceryl-6 dioleate, Diesters of glycerin or polyglycerin with fatty acids, such as Polyglyceryl-10 dioleate, Polyglyceryl distearate, Polyglyceryl-2 distearate, Polyglyceryl-3 distearate, Polyglyceryl-6 distearate, Polyglyceryl-10 distearate, Glyceryl diisostearate, Polyglyceryl-2 diisostearate, Polyglyceryl-3 diisostearate, Polyglyceryl-6 diisostearate, Polyglyceryl-10 distearate, Polyglyceryl dicocoate, Polyglyceryl-2 dicocoate, Polyglyceryl-3 dicocoate, Polyglyceryl-6 dicocoate, Polyglyceryl-10 dicocoate;

[0026] Polyglyceryl tricaprylate, Polyglyceryl-2 tricaprylate, Polyglyceryl-3 tricaprylate, Polyglyceryl-6 tricaprylate, Polyglyceryl-10 tricaprylate, Polyglyceryl tricaprate, Polyglyceryl-2 tricaprate, Polyglyceryl-3 tricaprate, Polyglyceryl-6 tricaprate, Polyglyceryl-10 tricaprate, Polyglyceryl trimyristate, Polyglyceryl-2 trimyristate, Polyglyceryl-3 trimyristate, Polyglyceryl-6 trimyristate, Polyglyceryl-10 trimyristate, Polyglyceryl trioleate, Polyglyceryl-2 trioleate, Polyglyceryl-3 trioleate, Polyglyceryl-6 trioleate, Polyglyceryl-10 trioleate, Polyglyceryl tristearate Triesters of glycerin or polyglycerin with fatty acids such as glyceryl tristearate, polyglyceryl-2 tristearate, polyglyceryl-3 tristearate, polyglyceryl-6 tristearate, polyglyceryl-10 tristearate, glyceryl triisostearate, polyglyceryl-2 triisostearate, polyglyceryl-3 triisostearate, polyglyceryl-6 triisostearate, polyglyceryl-10 tristearate, polyglyceryl tricocoate, polyglyceryl-2 tricocoate, polyglyceryl-3 tricocoate, polyglyceryl-6 tricocoate, polyglyceryl-10 tricocoate, caprylic / capric / myristic / stearic triglyceride, and behenic / isostearic / eicosanedioic triglyceride;

[0027] tetraesters of glycerin or polyglycerin with fatty acids, such as polyglyceryl-2 tetraoleate, polyglyceryl-3 tetraoleate, polyglyceryl-6 tetraoleate, polyglyceryl-10 tetraoleate, polyglyceryl-2 tetrastearate, polyglyceryl-3 tetrastearate, polyglyceryl-6 tetrastearate, polyglyceryl-10 tetrastearate, polyglyceryl-2 tetraisostearate, polyglyceryl-3 tetraisostearate, polyglyceryl-6 tetraisostearate, polyglyceryl-10 tetraisostearate, polyglyceryl-2 tetra(behenic acid / eicosadioic acid), polyglyceryl-3 tetra(behenic acid / eicosadioic acid), polyglyceryl-6 tetra(behenic acid / eicosadioic acid), and polyglyceryl-10 tetra(behenic acid / eicosadioic acid);

[0028] Pentaesters of glycerin or polyglycerin with fatty acids, such as Polyglyceryl-4 Pentaoleate, Polyglyceryl-6 Pentaoleate, Polyglyceryl-10 Pentaoleate, Polyglyceryl-4 Pentastearate, Polyglyceryl-6 Pentastearate, Polyglyceryl-10 Pentastearate, Polyglyceryl-4 Pentaisostearate, Polyglyceryl-6 Pentaisostearate, Polyglyceryl-10 Pentaisostearate, Polyglyceryl-4 Penta(behenate / eicosadioate), Polyglyceryl-6 Penta(behenate / eicosadioate), Polyglyceryl-10 Penta(behenate / eicosadioate);

[0029] Hexaesters of glycerin or polyglycerin with fatty acids, such as polyglyceryl-5 hexaoleate, polyglyceryl-6 hexaoleate, polyglyceryl-10 hexaoleate, polyglyceryl-5 hexastearate, polyglyceryl-6 hexastearate, polyglyceryl-10 hexastearate, polyglyceryl-5 hexaisostearate, polyglyceryl-6 hexaisostearate, polyglyceryl-10 hexaisostearate, polyglyceryl-5 hexa(behenate / eicosadioate), polyglyceryl-6 hexa(behenate / eicosadioate), and polyglyceryl-10 hexa(behenate / eicosadioate);

[0030] Octaesters of glycerin or polyglycerin with fatty acids, such as Polyglyceryl-6 Octaoleate, Polyglyceryl-10 Octaoleate, Polyglyceryl-6 Octastearate, Polyglyceryl-10 Octastearate, Polyglyceryl-6 Octaisostearate, Polyglyceryl-10 Octaisostearate, Polyglyceryl-6 Octabehenate / eicosanedioate, Polyglyceryl-10 Octabehenate / eicosanedioate;

[0031] Decaesters of glycerin or polyglycerin with fatty acids such as Polyglyceryl-10 decaoleate, Polyglyceryl-10 decastearate, Polyglyceryl-10 decaisostearate, and Polyglyceryl-10 deca(behenate / eicosanedioate).

[0032] In a preferred embodiment of the present invention, the glycerin fatty acid ester is selected from the group consisting of glyceryl caprate, polyglyceryl-6 dicaprate, polyglyceryl-3 diisostearate, and polyglyceryl-4 oleate. In another preferred embodiment of the present invention, the glycerin fatty acid ester is selected from the group consisting of glyceryl caprate, polyglyceryl-6 dicaprate, polyglyceryl-3 diisostearate, and polyglyceryl-4 oleate. In one embodiment of the invention, the glycerin fatty acid ester is not polyglyceryl-10 dioleate, glyceryl stearate, polyglyceryl isostearate, and polyglyceryl deca(behenate / caprate).

[0033] In one embodiment of the present invention, the premix and transparent solid cosmetic preparation of the present invention may be free of polyglyceryl-10 dioleate. In one embodiment of the present invention, the premix and transparent solid cosmetic preparation of the present invention may be free of glyceryl stearate. In one embodiment of the present invention, the premix and transparent solid cosmetic preparation of the present invention may be free of polyglyceryl isostearate. In one embodiment of the present invention, the premix and transparent solid cosmetic preparation of the present invention may be free of deca(behenate / caprate) polyglyceryl.

[0034] <Premix> In one embodiment of the present invention, the amino acid-based gelling agent and dimer diol and / or glycerin fatty acid ester may be used as a premix. From the viewpoint of improving workability, it may also be used as a premix diluted and dissolved in a solvent, preferably as a solid premix. Specifically, a premix can be prepared by dissolving an amino acid gelling agent and a dimer diol and / or a glycerin fatty acid ester in a solvent in advance. The solvent is not limited as long as it can be gelled by the amino acid gelling agent, but fatty acids having 3 to 22 carbon atoms or fatty acids having 3 to 22 carbon atoms and higher alcohols having 8 to 22 carbon atoms are preferred. From the viewpoints of solubility and transparency of the gelling agent, octyldodecanol, isostearic acid, etc. are more preferred.

[0035] In a preferred embodiment of the present invention, a premix is ​​provided which comprises an amino acid-based gelling agent, a dimer diol and / or a glycerin fatty acid ester, and a solvent. In a further preferred embodiment of the present invention, Amino acid-based gelling agents, Dimer diol and / or glycerin fatty acid ester, and a solvent selected from fatty acids having 3 to 22 carbon atoms, fatty acids having 3 to 22 carbon atoms, and higher alcohols having 8 to 22 carbon atoms; A premix is ​​provided comprising:

[0036] The amount of each component in the premix can be selected appropriately. From the viewpoint of gelling effect, the content of the amino acid gelling agent in the premix is ​​preferably 1 to 50% by weight, more preferably 2 to 45% by weight, and even more preferably 4 to 40% by weight. From the viewpoint of reducing cracking, the content of dimer diol and / or glycerin fatty acid ester in the premix is ​​preferably 0.5 to 80% by weight, more preferably 0.5 to 40% by weight, and even more preferably 1 to 20% by weight. From the viewpoint of ease of handling, the content of the solvent in the premix is ​​preferably 50 to 99% by weight, more preferably 55 to 98% by weight, and even more preferably 60 to 96% by weight.

[0037] In one embodiment of the present invention, it is preferable to combine dibutyl lauroyl glutamide and dibutyl ethyl hexanoyl glutamide as the amino acid gelling agent. In this case, the content of dibutyl lauroyl glutamide in the premix is ​​1 to 15 wt %, preferably 2 to 10 wt %, and the content of dibutyl ethyl hexanoyl glutamide is 0.5 to 10 wt %, preferably 2 to 8 wt %.

[0038] In one embodiment of the present invention, the content of dimer diol in the premix is ​​preferably 2 to 60% by weight, more preferably 10 to 50% by weight, and even more preferably 15 to 30% by weight. In one embodiment of the present invention, the content of the glycerin fatty acid ester in the premix is ​​preferably 0.5 to 40% by weight, more preferably 1 to 30% by weight, and even more preferably 1 to 20% by weight.

[0039] <Transparent solid cosmetic> In one aspect of the present invention, there is provided a transparent solid cosmetic preparation comprising an amino acid-based gelling agent, and a dimer diol and / or a glycerin fatty acid ester. The transparent solid cosmetic contains an oil that is gelled by an amino acid-based gelling agent. The blending amounts of the amino acid gelling agent and the dimer diol and / or glycerin fatty acid ester in the transparent solid cosmetic preparation can be appropriately selected depending on the specific use of the transparent solid cosmetic preparation, the desired feel and hardness, etc.

[0040] The content of the amino acid gelling agent in the transparent solid cosmetic preparation is preferably 1 to 20% by weight, more preferably 1.5 to 15% by weight, and even more preferably 3 to 12% by weight, from the viewpoints of gelling effect, transparency, and crack reduction. In one embodiment of the present invention, the content of dibutyl lauroyl glutamide in the transparent solid cosmetic preparation is preferably 0.5 to 10% by weight, more preferably 1 to 8% by weight, and even more preferably 2 to 7% by weight. In one embodiment of the present invention, the content of dibutyl ethylhexanoyl glutamide in the transparent solid cosmetic preparation is preferably 0.5 to 10% by weight, more preferably 0.5 to 7% by weight, and even more preferably 1 to 5% by weight.

[0041] The content of dimer diol and / or glycerin fatty acid ester in the transparent solid cosmetic preparation is preferably 0.5 to 60% by weight, more preferably 1 to 50% by weight, and even more preferably 1 to 40% by weight, from the viewpoints of gelling effect, transparency, and crack reduction. The content of dimer diol in the transparent solid cosmetic preparation is preferably 15 to 60% by weight, more preferably 20 to 50% by weight, and even more preferably 30 to 40% by weight, from the viewpoints of gelling effect, transparency, and crack reduction. The content of the glycerin fatty acid ester in the transparent solid cosmetic preparation is preferably 0.5 to 40% by weight, more preferably 1 to 30% by weight, and even more preferably 1 to 20% by weight, from the viewpoints of gelling effect, transparency, and crack reduction.

[0042] The content of the oil in the transparent solid cosmetic preparation can be appropriately selected depending on the type of oil, the specific use of the transparent solid cosmetic preparation, the desired feel during use and hardness, etc., but is preferably 50 to 98.5% by weight, more preferably 60 to 96% by weight, and even more preferably 70 to 96% by weight.

[0043] <Oil> The oil is not particularly limited as long as it is a component commonly used in cosmetics and the like, and examples include oils such as animal and vegetable oils, hydrocarbon oils, higher fatty acids, higher alcohols, ester oils, and silicone oils, which can be used alone or in combination of two or more. When a premix of an amino acid-based gelling agent is used to prepare a transparent solid cosmetic preparation, the oil agent further used may be the same as or different from the oil agent that serves as a solvent contained in the premix.

[0044] Examples of animal and vegetable fats and oils, or hydrogenated animal and vegetable fats and oils, include avocado oil, perilla oil, olive oil, cacao butter, kaya oil, apricot kernel oil, hardened oil, wheat germ oil, sesame oil, rice germ oil, rice bran oil, sugarcane wax, camellia oil, safflower oil, shea butter, Chinese ginger oil, cinnamon oil, soybean oil, tea seed oil, camellia oil, evening primrose oil, corn oil, rapeseed oil, germ oil, palm oil, palm kernel oil, castor oil, hardened castor oil, sunflower oil, grape oil, jojoba oil, macadamia nut oil, beeswax, cottonseed oil, cotton wax, Japan wax, montan wax, coconut oil, hardened coconut oil, peanut oil, lanolin, liquid lanolin, reduced lanolin, lanolin alcohol, hard lanolin, lanolin acetate, lanolin fatty acid isopropyl, and hexyl laurate.

[0045] Examples of hydrocarbon oils include ozokerite, squalane, squalene, ceresin, paraffin, isoparaffin, paraffin wax, liquid paraffin (mineral oil), pristane, polyisobutylene, polyisobutene, hydrogenated polyisobutene, microcrystalline wax, polyethylene wax, and petrolatum. Examples of higher fatty acids include lauric acid, myristic acid, palmitic acid, stearic acid, isostearic acid, oleic acid, behenic acid, undecylenic acid, linoleic acid, linolenic acid, arachidonic acid, eicosapentaenoic acid (EPA), and docosahexaenoic acid (DHA). Examples of higher alcohols include myristyl alcohol, cetanol, stearyl alcohol, arachidyl alcohol, behenyl alcohol, and hydrogenated rapeseed oil alcohol.

[0046] Examples of ester oils include monoesters such as isononyl isononanoate and isotridecyl isononanoate, which are isononanoic acid esters; cetyl ethylhexanoate and hexyldecyl ethylhexanoate, which are 2-ethylhexanoic acid esters; isopropyl myristate, isocetyl myristate, and octyldodecyl myristate, which are myristate esters; ethyl isostearate, isopropyl isostearate, hexyldecyl isostearate, isostearyl isostearate, cholesteryl isostearate, and phytosteryl isostearate, which are isostearate esters; and milk oils. Examples of the oleic acid esters include isostearyl lactate and octyldodecyl lactate; oleic acid esters include oleyl oleate, phytosteryl oleate and octyldodecyl oleate; neopentanoic acid esters include isodecyl neopentanoate and isostearyl neopentanoate; palmitic acid esters include isopropyl palmitate and ethylhexyl palmitate; and others include ethylhexyl hydroxystearate, octyldodecyl neodecanoate, octyldodecyl ricinoleate, oleyl erucate, octyldodecyl erucate, and isopropyl lauroyl sarcosine.

[0047] Examples of diester oils include dipentaerythrityl hexaisononanoate, diisobutyl adipate, diisopropyl adipate, diethylhexyl succinate, neopentyl glycol diisononanoate, neopentyl glycol diethylhexanoate, neopentyl glycol dicaprate, diisostearyl malate, diisopropyl dilinoleate, ethylene glycol dioctanoate, octyldodecyl stearoyloxystearate, diisopropyl sebacate, di(cholesteryl / octyldodecyl) lauroyl glutamate, and di(phytosteryl / octyldodecyl) lauroyl glutamate. Triester oils include triethylhexanoin, trimethylolpropane triethylhexanoate, tri(caprylic / capric acid)glyceryl, triisostearin, trimethylolpropane triisostearate, and the like. Examples of tetraester oils include pentaerythrityl tetraethylhexanoate and pentaerythrityl tetraisostearate.

[0048] Examples of polyester oils include polyglycerin fatty acid esters such as polyglyceryl-2 isostearate, polyglyceryl-2 diisostearate, polyglyceryl-2 triisostearate, and polyglyceryl-2 tetraisostearate. Examples of high-viscosity ester oils include hydrogenated castor oil isostearate, hydrogenated castor oil dimer dilinoleate, (polyglyceryl-2 isostearate / dimer dilinoleate) copolymer, (phytosteryl / isostearyl / cetyl / stearyl / behenyl) dimer dilinoleate, dimer dilinoleyl bis(phytosteryl / behenyl / isostearyl) dimer dilinoleate, di(isostearyl / phytosteryl) dimer dilinoleate, dimer dilinoleyl hydrogenated rosin condensate, dimer dilinoleyl diisostearate, dimer dilinoleyl dimer dilinoleate, di(cholesteryl / behenyl / octyldodecyl) lauroyl glutamate, di(octyldodecyl / phytosteryl / behenyl) lauroyl glutamate, and myristoyl methylalanine (phytosteryl / decyltetradecyl).

[0049] Examples of silicone oils include dimethylpolysiloxane, methylphenylpolysiloxane, alkyl-modified organopolysiloxane, terminal-modified organopolysiloxane, fluorine-modified organopolysiloxane, amodimethicone, amino-modified organopolysiloxane, volatile silicone, alkyldimethicone, and cyclopentasiloxane.

[0050] In one embodiment of the present invention, from the viewpoint of achieving a formulation that has a long history of use in cosmetics and is preferred by consumers, it is preferable to use oils such as hydrocarbon oils and vegetable oils, and these can be combined as appropriate. In one embodiment of the present invention, when a higher alcohol is used, it is preferably used in an amount of 45 wt % or less, more preferably 40 wt % or less, and even more preferably 35 wt % or less, based on the total weight of the transparent solid cosmetic preparation, from the viewpoint of achieving an appropriate hardness. In one embodiment of the present invention, the premix and transparent solid cosmetic preparation of the present invention may be free of liquid paraffin.

[0051] <Other ingredients> The transparent solid cosmetic preparation of the present invention may contain any ingredients that are generally used in cosmetics. Examples of these additional ingredients include UV absorbers such as ethylhexyl methoxycinnamate, diethylaminohydroxybenzoyl hexyl benzoate, and octocrylene; quality preservatives such as antioxidants and preservatives; medicinal and active ingredients such as whitening agents, anti-wrinkle agents, and antioxidants; fragrances; and decorative agents such as colorants, dyes, pigments, and pearlescent agents. These can be combined as appropriate. In one embodiment of the present invention, the transparent solid cosmetic preparation and premix of the present invention do not need to contain an ethyl cellulose polymer, or even if they do contain one, the amount may be 5 wt % or less of the total amount of the transparent solid cosmetic preparation, for reasons such as the fact that ethyl cellulose takes a long time to dissolve, the time required for the premix and cosmetic preparation to solidify, and the cosmetic preparation does not absorb sweat well after perspiration. For similar reasons, in one embodiment of the present invention, the premix of the present invention preferably does not contain ethyl cellulose polymer, and even if it does contain it, it contains less than 8% by weight, more preferably less than 3% by weight.

[0052] <Method of manufacturing a transparent solid cosmetic product> The transparent solid cosmetic preparation of the present invention can be prepared by a conventional method, for example, by dissolving and mixing the components, and then cooling. In one embodiment of the present invention, when a premix is ​​used, the premix can be prepared by mixing and dissolving it with an oily component such as an oil agent, followed by cooling. More specifically, the premix can be prepared by dissolving the transparent premix, adding it to and mixing it with a heated oily component such as an oil agent, and then cooling.

[0053] <Premix manufacturing method> The premix of the present invention can be prepared by a conventional method, for example, by dissolving the components, mixing them, and cooling them.

[0054] The present invention will be described in more detail below based on examples, but the present invention is not limited to these examples and various modifications are possible within the scope of the technical concept of the present invention. In this specification, % means % by weight unless otherwise specified. [Example]

[0055] [Test Example 1] [Sample preparation method] The raw materials for the compositions having the formulations shown in Tables 1 to 3 below were dissolved at 110 to 115°C, mixed, poured into a polymethacrylate resin cuvette, and left to stand at room temperature for one day to solidify. The blending amounts shown in each table are in weight percent.

[0056] [evaluation] ·Transparency Measurement was carried out using an ultraviolet-visible spectrophotometer V-650 manufactured by JASCO Corporation in the absorption wavelength range of 350 nm to 800 nm, and the average value of the values ​​in the range of 380 nm to 750 nm was taken as the transmittance. Water was used as a blank.

[0057] Hardness Measurements were taken using an EZ Test EZ-SX manufactured by Shimadzu Corporation, using a needle-shaped jig with a diameter of 1 mm and a length of 30 mm, with a penetration speed of 10 mm / min and a stroke of 10 mm, and the average value of the stress (N) was taken as the hardness value of the sample. If the sample did not solidify into a gel-like state but remained liquid, and a hardness value could not be obtained, it was recorded as "-".

[0058] ·crack Three samples for each formulation were visually inspected, and if even one crack occurred, it was marked as "present." If no cracks occurred in any of the three samples, it was marked as "absent."

[0059] [Table 1]

[0060] [Table 2]

[0061] [Table 3]

[0062] From the above results, it can be seen that by combining an amino acid-based gelling agent with a dimer diol, a solid composition that is highly transparent and does not generate cracks can be obtained. By blending a larger amount of amino acid-based gelling agent, it is possible to achieve a hardness suitable for a stick shape, as well as a good appearance with high transparency and no cracks.

[0063] [Test Example 2] The effect of adding dimer diol and glycerin fatty acid ester to a composition containing various oils and an amino acid-based gelling agent: Compositions having formulations shown in the following Tables 4 to 7 were prepared in the same manner as in Test Example 1, and the crack reduction effect was confirmed.

[0064] [Table 4]

[0065] [Table 5]

[0066] [Table 6]

[0067] [Test Example 3] Compositions using various types of glyceric acid esters and dimer diols according to the formulations shown in Table 7 below were prepared in the same manner as in Test Example 1, and the crack reduction effect was confirmed. [Table 7]

[0068] As shown in FIG. 7, cracks occurred in the comparative example, but cracks were reduced in each of the examples.

[0069] [Test Example 3] Examination of blending amount: Compositions having the formulations shown in Table 8 below were prepared in the same manner as in Test Example 1, and the crack reduction effect was confirmed.

[0070] [Table 8]

[0071] It can be seen that cracks can be reduced even with a blending amount of glyceryl caprylate of 1% by weight.

[0072] [Test Example 4] Formulation example of a sun care stick containing a UV absorber The sun care sticks having the formulations shown in Tables 9 and 10 below were prepared by heating the ingredients to 115°C, dissolving them uniformly, pouring them directly into a container with a stem, and slowly cooling them to room temperature to produce the final product.

[0073] [Table 9]

[0074] [Table 10]

[0075] As shown in Figures 9 and 10, by adding a glycerin fatty acid ester or dimer diol, a highly transparent, crack-free sun care stick containing an ultraviolet absorber was obtained.

[0076] [Test Example 6] Formulation example of transparent lip cosmetics The clear lip cosmetics having the formulations shown in Tables 11 and 12 below were prepared by heating the ingredients to 115°C until uniformly dissolved, and then directly filling a lipstick container with a stem and a lip balm container without a stem, followed by gradual cooling at room temperature to produce the final products. The clear lip cosmetics having the formulations shown in Tables 13 and 14 below were prepared by heating the raw materials to 115°C and dissolving them uniformly, then pouring the mixture into a polymethacrylate resin cuvette and gradually cooling it to room temperature to obtain the final product.

[0077] [Table 11]

[0078] [Table 12]

[0079] [Table 13]

[0080] [Table 14]

[0081] As shown in Figs. 11 to 13, by blending dimer diol and / or glycerin fatty acid ester, a transparent lip cosmetic that was highly transparent and free of cracks was obtained.

[0082] [Test Example 7] Formulation example of transparent hair stick The transparent hair sticks having the formulations shown in Table 15 below were prepared by heating the raw materials to 115°C, dissolving them uniformly, pouring the mixture into a polymethacrylate resin cuvette, and gradually cooling it to room temperature to produce the final product. [Table 15]

[0083] As shown in FIG. 14, by adding dimer diol, a transparent hair stick with high transparency and no cracks was obtained.

[0084] From the above results, it can be seen that by incorporating dimer diol and / or glycerin fatty acid ester into a cosmetic formulation containing an oil appropriate for each application, a transparent solid cosmetic preparation that is highly transparent and free of cracks can be provided. It can also be understood that a premix containing an amino acid gelling agent, a dimer diol and / or a glycerin fatty acid ester, and optionally a solvent is useful for preparing such a transparent cosmetic. [Industrial Applicability]

[0085] A transparent solid composition using an amino acid-based gelling agent can be provided with high transparency and reduced cracking by blending a dimer diol and / or a glycerin fatty acid ester, and a method and premix for preparing such a transparent solid composition can be provided.

Claims

1. A method for reducing cracks in a transparent solid cosmetic comprising blending a dimer diol and / or a glycerin fatty acid ester with the transparent solid cosmetic containing an amino acid-based gelling agent.

2. The method according to claim 1, further comprising incorporating a fatty acid having 3 to 22 carbon atoms and / or a higher alcohol having 8 to 22 carbon atoms into the transparent solid cosmetic preparation.

3. Amino acid-based gelling agents, a fatty acid having 3 to 22 carbon atoms and / or a higher alcohol having 8 to 22 carbon atoms, and Dimer diol and / or glycerin fatty acid ester A premix for a transparent solid cosmetic comprising:

4. Amino acid-based gelling agents, a fatty acid having 3 to 22 carbon atoms and / or a higher alcohol having 8 to 22 carbon atoms, and Dimer diol and / or glycerin fatty acid ester A premix for transparent solid cosmetics comprising:

5. Amino acid-based gelling agents, Dimer diol and / or glycerin fatty acid ester, and Oil Including, Contains no ethyl cellulose polymer or less than 5% by weight of ethyl cellulose polymer, Transparent solid cosmetic.

6. The transparent solid cosmetic preparation according to claim 5 , comprising a dimer diol.

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