Oil-based solid cosmetic

Abstract

The present invention provides an oily solid cosmetic composition containing plant-based and / or animal-derived waxes that exhibits excellent meltability, smooth glide, and especially high-temperature stability and durability. [Solution] The present invention provides an oily solid cosmetic composition comprising (A) candelilla wax, (B) plant-based and / or animal-based wax having a melting point of 70°C or higher, (C) a monoester of a monovalent linear saturated fatty acid and a monovalent linear saturated fatty alcohol having a total of 40 to 48 carbon atoms, and (D) at least one selected from the group consisting of (polyglyceryl-2 isostearate / dimer dilinoleate) copolymer, hydrogenated castor oil dimer dilinoleate, hydrogenated castor oil isostearate, phytosteryl / octyldodecyl lauroyl glutamate, octyldodecyl stearoyloxystearate, polyglyceryl-10 isostearate, polyglyceryl-10 diisostearate, polyglyceryl-10 decaisostearate, and polybutene.

Description

Detailed Description of the Invention

[0001] Technical Field

[0001] The present invention relates to oil-based solid cosmetics, particularly lips.

[0002] Background of the Invention

[0002] In recent years, from the viewpoints of safety and aesthetics, many natural-derived cosmetics have emerged on the market. During this market situation, the consumer demand for natural-derived oil-based solid cosmetics is also increasing. For example, International Publication No. 2018 / 123824 discloses a solid wax composition containing candelilla wax, behenyl behenate, and a liquid oil. Japanese Patent Laid-Open No. 2006-342141 discloses an oil-based solid cosmetic containing candelilla wax, an organic pigment, and a liquid oil.

[0003] Technical Problem

[0003] In conventional oil-based solid cosmetics such as lipsticks, hydrocarbon waxes having a high melting point such as polyethylene wax have been considered as components necessary for maintaining the stability of the product. The combination of hydrocarbon wax and polar oil results in an oil-based solid cosmetic having excellent stability at high temperatures.

[0004]

[0004] However, in oil-based solid cosmetics, in addition to high-temperature stability, when applied to the skin or lips, it is also required to have smooth gliding and excellent texture such as a melting sensation. When applying an oil-based solid cosmetic to the skin or lips, if the gliding is not sufficiently smooth, such as causing snagging when sliding while in contact with the skin, the cosmetic may not be properly adhered to the skin or lips. Also, in an oil-based solid cosmetic containing a colorant such as a lipstick, if the smooth gliding and melting sensation are poor, the cosmetic may not be properly applied onto the skin, resulting in poor color payoff.

[0005]

[0005] To improve the melting sensation and smooth glide, low-melting-point waxes or paste-like oils (semi-solid waxes) can be used in oil-based solid cosmetics. However, it is difficult to improve the texture without losing sufficient high-temperature stability. In particular, achieving both melting sensation, smooth glide, and high-temperature stability using naturally derived waxes is more difficult than with conventional oil-based solid cosmetics mainly containing hydrocarbon waxes.

[0006]

[0006] Furthermore, oil-based solid cosmetics are also required to have high durability. For example, if a stick-shaped oil-based solid cosmetic has poor durability, it may break when the cosmetic is dispensed from the container, and it may not be possible to properly mold it during manufacturing. Also, if a solid cosmetic is filled in a shallow container such as a compact container, poor durability can lead to problems such as cracking or splitting, or a significantly larger amount than necessary adhering to the brush or sponge during use.

[0007]

[0007] Accordingly, the present invention aims to provide an oily solid cosmetic composition comprising a naturally derived wax, particularly a plant-based and / or animal-based wax, which is excellent in terms of melting, smooth glide, and especially high temperature stability and durability. In the present invention, “naturally derived wax” means a plant-based and / or animal-based wax, and is also referred to as “plant-based and / or animal-based wax” in the remainder of this specification. Here, “naturally derived wax” does not include petroleum-based wax. The inventors will further demonstrate in the exemplary examples and comparative examples described herein that the combination of compounds (A) to (D) according to the present invention addresses the technical problem of having both melting, smooth glide, and especially high temperature stability and durability compared to conventional compositions lacking one or two of the compounds in the combination.

[0008] Summary of the Invention

[0008] One aspect of the present invention relates to an oily solid cosmetic comprising (A) candelilla wax, (B) plant-based and / or animal-based wax having a melting point of 70°C or higher, (C) a monoester of a monovalent linear saturated fatty acid and a monovalent linear saturated aliphatic alcohol having a total of 40 to 48 carbon atoms, and (D) at least one selected from the group consisting of (polyglyceryl-2 isostearate / dimer dilinoleate) copolymer, hydrogenated castor oil dimer dilinoleate, hydrogenated castor oil isostearate, phytosteryl / octyldodecyl lauroyl glutamate, octyldodecyl stearoyloxystearate, polyglyceryl-10 isostearate, polyglyceryl-10 diisostearate, polyglyceryl-10 decaisostearate, and polybutene.

[0009]

[0009] Another aspect of the present invention relates to an oily solid cosmetic containing (A) candelilla wax, (B) plant-based and / or animal-based wax having a melting point of 70°C or higher, (C) a monoester of a monovalent linear saturated fatty acid and a monovalent linear saturated aliphatic alcohol having a total of 40 to 48 carbon atoms, and (D) dimer dilinoleyl diisostearate and / or dimer dilinoleyl dimer dilinoleate in an amount of 8% by mass or less relative to the total amount of the oily solid cosmetic.

[0010]

[0010] Preferably, the above-mentioned plant-derived and / or animal-derived wax is at least one selected from the group consisting of rice bran wax, carnauba wax, and sunflower seed wax.

[0011]

[0011] Preferably, the above monoester is at least one selected from the group consisting of behenyl stearate, arachidyl eicosanoate, henicosyl eicosanoate, behenyl eicosanoate, stearyl behenate, nonadecanyl behenate, arachidyl behenate, henicosyl behenate, and behenyl behenate.

[0012]

[0012] The above cosmetic composition preferably further contains, in addition to component (D), a liquid oil having at least one hydroxyl group.

[0013]

[0013] The above cosmetic product may be lipstick, blush, lip balm, lip liner, foundation, concealer, face color, eyeliner, or eyeshadow.

[0014]

[0014] The above cosmetic product may be in stick form.

[0015]

[0015] The above cosmetic composition may further contain a colorant.

[0016]

[0016] Another aspect of the present invention relates to a method of beauty for keratin care and / or makeup, comprising applying the above-mentioned cosmetic composition to keratin, particularly to skin or lips.

[0017]

[0017] The oil-based solid cosmetic composition of the present invention contains plant-based and / or animal-based waxes and is excellent in terms of meltability, smoothness, and especially high temperature stability and durability.

[0018] Detailed explanation

[0018] Preferred embodiments of the present invention will be described in detail below. However, the present invention is not limited to the following embodiments.

[0019]

[0019] The oily solid cosmetic composition according to this embodiment comprises (A) candelilla wax, (B) plant-based and / or animal-based wax having a melting point of 70°C or higher, (C) a monoester of a monovalent linear saturated fatty acid and a monovalent linear saturated fatty alcohol having a total of 40 to 48 carbon atoms, and (D) at least one selected from the group consisting of (polyglyceryl-2 isostearate / dimer dilinoleate) copolymer, hydrogenated castor oil dimer dilinoleate, hydrogenated castor oil isostearate, phytosteryl / octyldodecyl lauroyl glutamate, octyldodecyl stearoyloxystearate, polyglyceryl-10 isostearate, polyglyceryl-10 diisostearate, polyglyceryl-10 decaisostearate, and polybutene.

[0020]

[0020] Another embodiment of the oily solid cosmetic composition contains (A) candelilla wax, (B) plant-based and / or animal-based wax having a melting point of 70°C or higher, (C) a monoester of a monovalent linear saturated fatty acid and a monovalent linear saturated aliphatic alcohol having a total of 40 to 48 carbon atoms, and (D) dimer dilinoleyl diisostearate and / or dimer dilinoleyl dimer dilinoleate in an amount of 8% by mass or less relative to the total amount of the oily solid cosmetic composition.

[0021]

[0021] In this specification, "solid" refers to the state at room temperature (20°C). Generally, "solid" is defined as a state of 30 Nm at a temperature of 20°C and atmospheric pressure (760 mmHg). -1 Larger, preferably 40 Nm -1 This refers to compositions having greater hardness. Hardness can be measured at 20°C by the so-called "butter cutting wire" method, which involves cutting a stick of the product, preferably a rotating cylindrical product, laterally using a 300 μm stiff wire. Hardness can be measured by moving the wire relative to the stick at a speed of 60 mm / min. The hardness of the sample is expressed in g and can be measured using a TEXT Plus texturerometer.

[0022] Candelilla wax

[0022] Component (A) The oily solid cosmetic composition according to this embodiment contains candelilla wax as component (A). Candelilla wax is a wax extracted from the candelilla plant (Euphorbia cerifera) of the Euphorbiaceae family. Candelilla wax may be, for example, obtained by further refining a crude product from which impurities have been removed from wax extracted by a melting method from sun-dried candelilla plants.

[0023]

[0023] Refining treatments for the crude product include, for example, removal of resin, decolorization, or deodorization, and these can be carried out in combination. (A) As an ingredient, for example, "Candelilla Wax" as described in the Japanese Standards for Quasi-Drug Ingredients 2006 is preferred.

[0024]

[0024] In the oil-based solid cosmetic according to this embodiment, the content of component (A) may be 2% by mass or more, 3% by mass or more, 4% by mass or more, and may be 12% by mass, 10% by mass or less, 9% by mass or less, 8.5% by mass or less, 8% by mass or less, 7% by mass or less, 6% by mass or less, or 5.5% by mass or less with respect to the total amount of the oil-based solid cosmetic. In the oil-based solid cosmetic according to this embodiment, the content of component (A) may be, for example, 2 to 12% by mass with respect to the total amount of the oil-based solid cosmetic, preferably 3 to 10% by mass, and may be 3 to 9% by mass, 4 to 8.5% by mass. Hereinafter, "mass%" is also referred to as "weight%". When the content of component (A) is within the above range, it is preferable because it is easy to obtain an excellent melt feeling and smooth slipperiness.

[0025]

[0025] In the oil-based solid cosmetic according to this embodiment, the mass ratio of component (A) to component (C) described later may be, for example, 1 to 4:1, preferably 1.5 to 3.5:1, and more preferably 2 to 3:1.

[0026] Plant-based and / or animal-based wax with a melting point of 70°C or higher

[0026] Component (B) The oil-based solid cosmetic according to this embodiment contains, in addition to component (A), a plant-based and / or animal-based wax having a melting point of 70°C or higher as component (B). The oil-based solid cosmetic preferably contains a plant-based wax. Component (B) is a substance other than candelilla wax. The plant-based and / or animal-based wax may be a wax synthesized using plant-derived and / or animal-derived materials.

[0027]

[0027] The melting point of the wax of component (B) may be, for example, 100°C or lower, and may be 90°C or lower. The melting point of the wax is measured by the second method of melting point measurement, which is a general test method for raw materials of quasi-drugs in Japan.

[0028]

[0028] Examples of the wax of component (B) may include carnauba wax, rice bran wax, sunflower seed wax, palm wax, and the like.

[0029]

[0029] The oil-based solid cosmetic according to this embodiment preferably contains, as the component (B), at least one selected from the group consisting of carnauba wax, rice bran wax, and sunflower seed wax, and more preferably uses rice bran wax. The wax of the component (B) may be used alone or in combination of plural kinds.

[0030]

[0030] The wax content of the component (B) in the oil-based solid cosmetic according to this embodiment may be 2% by mass or more, 2.5% by mass or more, 3% by mass or more, or 4% by mass or more, and may be 20% by mass or less, 15% by mass or less, 10% by mass or less, 8% by mass or less, 6% by mass or less, 4% by mass or less, or 3% by mass or less, based on the total amount of the oil-based solid cosmetic. The wax content of the component (B) in the oil-based solid cosmetic according to this embodiment may be 2 to 20% by mass, preferably 3 to 15% by mass, 3 to 12% by mass, or 3 to 10% by mass, and more preferably 4 to 8% by mass, based on the total amount of the oil-based solid cosmetic.

[0031]

[0031] In the oil-based solid cosmetic according to this embodiment, the mass ratio of the component (B) to the component (C) described later may be, for example, 1 to 6:1, preferably 1 to 5:1, and more preferably 1 to 4:1. In the oil-based solid cosmetic according to this embodiment, the mass ratio of the component (B) to the component (C) may be 1.5 to 5:1, particularly 1.5 to 4:1, or 2 to 4:1. When the mass ratio of the component (B) to the component (C) is within the above range, it is preferable because the effects of the present invention are more excellent and particularly the high-temperature stability can be further enhanced.

[0032]

[0032] The oil-based solid cosmetic composition according to this embodiment may further contain waxes other than components (A) and (B). The oil-based solid cosmetic composition according to this embodiment may contain petroleum-derived hydrocarbon waxes or synthetic waxes as waxes other than components (A) and (B), but it is preferable that it does not contain petroleum-derived hydrocarbon waxes or synthetic waxes. It is preferable that all waxes contained in the oil-based solid cosmetic composition according to this embodiment are of natural origin.

[0033]

[0033] The total amount of component (A) and component (B) may be 5% by mass or more, 7% by mass or more, 8% by mass or more, 9% by mass or more, or 10% by mass or more, relative to the total amount of the oily solid cosmetic, and may be 30% by mass or less, 25% by mass or less, 23% by mass or less, 21% by mass or less, 19% by mass or less, 16% by mass or less, 15% by mass or less, 12% by mass or less, 10% by mass or less, or 8% by mass or less. The total amount of component (A) and component (B) may be 5 to 30% by mass, 8 to 25% by mass, 9 to 23% by mass, 10 to 21% by mass, 10 to 19% by mass, or 10 to 16% by mass, relative to the total amount of the oily solid cosmetic. It is preferable that the total amount of component (A) and component (B) be within the above range, as this further improves solubility, smoothness, high temperature stability, and durability.

[0034]

[0034] If the oil-based solid cosmetic composition contains wax in addition to components (A) and (B), the total amount of wax may be 5% by mass or more, 7% by mass or more, 8% by mass or more, 9% by mass or more, or 10% by mass or more, relative to the total amount of the oil-based solid cosmetic composition according to this embodiment, and may be 30% by mass or less, 25% by mass or less, 23% by mass or less, 21% by mass or less, 19% by mass or less, or 16% by mass or less. The total amount of wax may be, for example, 5 to 30% by mass or 8 to 25% by mass, preferably 9 to 23% by mass, 10 to 21% by mass, 10 to 19% by mass or 10 to 16% by mass, and more preferably 12 to 13.7%, relative to the total amount of the oil-based solid cosmetic composition according to this embodiment.

[0035] Monoesters of monounsaturated fatty acids and monohydric alcohols

[0035] (C) Component The oily solid cosmetic composition according to this embodiment contains a monoester of a monovalent linear saturated fatty acid and a monovalent linear saturated fatty alcohol as component (C). The monoester has a total of 40 to 48 carbon atoms. The monoester is obtained by esterification of a monovalent linear saturated fatty acid and a monovalent linear saturated fatty alcohol. The monovalent linear saturated fatty acid and monovalent linear saturated fatty alcohol that serve as raw materials for the monoester of component (C) are not particularly limited as long as they yield a monoester with a total of 40 to 48 carbon atoms by esterification.

[0036]

[0036] Examples of monounsaturated fatty acids include caprylic acid (octanoic acid), pelargonic acid (nonanoic acid), capric acid (decanoic acid), lauric acid (dodecanoic acid), myristic acid (tetradecanoic acid), pentadecyl acid (pentadecanoic acid), palmitic acid (hexadecanoic acid), margaric acid (heptadecanoic acid), stearic acid (octadecanoic acid), arachidic acid (eicosanoic acid), behenic acid (docosanoic acid), lignoceric acid (tetracosanoic acid), hexacosanoic acid, octacosanoic acid, or triacontanoic acid. Examples of monohydric alcohols include decanol, undecanol, dodecanol, tridecanol, tetradecanol, pentadecanol, hexadecanol, heftadecanol, stearyl alcohol (octadecanol), nonadecyl alcohol (nonadecanol), arachidyl alcohol (eicosanyl alcohol), henicosyl alcohol, heneicosyl alcohol, behenyl alcohol (docosanyl alcohol), tricosanyl alcohol, lignoceryl alcohol (tetracosanyl alcohol), pentacosanyl alcohol, hexacosanyl alcohol, heptacosanyl alcohol, octacosanyl alcohol, nonacosanyl alcohol, triacontanyl alcohol, hentriacontanyl alcohol, or dotriacontanyl alcohol.

[0037]

[0037] The monoester of component (C) is a monoester of a monovalent linear saturated fatty acid and a monovalent linear saturated fatty alcohol, and is preferred because it is easier to obtain higher crystallinity and melting point, and is a monoester of a monovalent linear saturated fatty acid having 18 to 22 carbon atoms and a monovalent linear saturated fatty alcohol having 18 to 22 carbon atoms. Specifically, examples of monoesters of a monovalent linear saturated fatty acid having 18 to 22 carbon atoms and a monovalent linear saturated fatty alcohol having 18 to 22 carbon atoms include behenyl stearate, arachidyl eicosanoate, henicosyl eicosanoate, behenyl eicosanoate, stearyl behenate, nonadecanyl behenate, arachidyl behenate, henicosyl behenate, and behenyl behenate.

[0038]

[0038] The monoester of component (C) may be a chemically synthesized product, or it may be contained in oils extracted from natural products such as plants and microorganisms, or modified oils thereof. The above monoester can be synthesized by esterifying monovalent linear saturated fatty acids and monovalent linear saturated fatty alcohols by conventionally known methods. For example, monovalent linear saturated fatty acids and monovalent linear saturated fatty alcohols are placed in a reaction vessel in a molar ratio of 1:1 and heated at 160-250°C under an inert gas atmosphere, while removing the water produced. At this time, a catalyst may or may not be used. After the reaction, unreacted fatty acids and alcohols are removed from the reaction product as needed. If a catalyst was used, the catalyst is also removed. If necessary, the reaction product is purified by decolorization, deodorization, etc., to obtain a monoester.

[0039]

[0039] The monovalent linear saturated fatty acid and monovalent linear saturated fatty alcohol constituting the monoester of component (C) may be chemically synthesized products or may be refined from oils extracted from natural products such as plants and microorganisms. The monovalent linear saturated fatty acid and monovalent linear saturated fatty alcohol constituting the above monoester are preferably plant-derived components.

[0040]

[0040] As a raw material containing the monoester of component (C), it is preferable that the monoester content is sufficiently high. As a raw material containing the monoester, the ratio of the monoester content (mass) to the total mass of the raw material may be, for example, 90% by mass or more and 100% by mass or less, preferably 94% by mass or more and 100% by mass or less, and more preferably 96% by mass or more and 100% by mass or less.

[0041]

[0041] Examples of commercially available products that can be used as the monoester of component (C) are Unistar® M-2222SL (Nippon Oil & Fats Co., Ltd.) or Kester Wax K-72 (Koster Keunen).

[0042]

[0042] In the oil-based solid cosmetic composition according to this embodiment, the content of component (C) may be 1% by mass or more, 1.3% by mass or more, 1.5% by mass or more, or 2% by mass or more, with respect to the total amount of the oil-based solid cosmetic composition, and may be 5% by mass or less, 4% by mass or less, 3.5% by mass or less, or 3% by mass or less. In the oil-based solid cosmetic composition according to this embodiment, the content of component (C) may be 1 to 5% by mass, preferably 1.3 to 4% by mass, and more preferably 1.5 to 3.5% by mass or 2 to 3% by mass, with respect to the total amount of the oil-based solid cosmetic composition.

[0043]

[0043] The monoester content of component (C) in an oily solid cosmetic can be analyzed by conventionally known methods such as gas chromatography. For example, in the gas chromatography analysis method, a raw material containing the above monoester is used as the measurement sample, and this measurement sample is subjected to gas chromatography analysis under the following analytical conditions. The ratio obtained by dividing the sum of the peak areas that appear during the retention time corresponding to the main peaks of the standard substance with a total of 40 carbon atoms and the standard substance with a total of 48 carbon atoms by the total sum of the peak areas is the ratio of the monoester content with a total of 40 to 48 carbon atoms to the total mass of the measurement sample.

[0044]

[0044] Gas chromatograph conditions; Column: DB-1ht (manufactured by Agilent) Detector: Flame ionization detector (FID) Heating rate: 15°C / min Column temperature: 50~350℃ Standard substances: Monoesters with a total of 40 carbon atoms (e.g., stearyl behenate), monoesters with a total of 48 carbon atoms (e.g., tetracosanyl tetracosanoate)

[0045]

[0045] Stearyl behenate and tetracosanyl tetracosanoate, used as standard substances, can be obtained, for example, by reacting behenic acid and stearyl alcohol, or lignoceric acid and lignoceryl alcohol, in a molar ratio of 1:1 under a nitrogen atmosphere while heating and removing the water produced. Monohydric fatty acids and monohydric alcohols for preparing standard substances can be commercially available reagents (for example, those manufactured by Tokyo Chemical Industry Co., Ltd.).

[0046]

[0046] Component (C) may be used alone or in combination of two or more. Component (C) preferably contains one or more monoesters of a monovalent linear saturated fatty acid having 18 to 22 carbon atoms and a monovalent linear saturated fatty alcohol having 18 to 22 carbon atoms, more preferably contains one or more selected from the group consisting of stearyl behenate, nonadecanyl behenate, arachidyl behenate, henicosyl behenate, and behenyl behenate, even more preferably contains one or more selected from the group consisting of behenyl behenate and stearyl behenate, and even more preferably contains behenyl behenate.

[0047]

[0047] The oil-based solid cosmetic composition according to this embodiment may further contain monoesters other than component (C).

[0048]

[0048] (D component) The oily solid cosmetic composition according to this embodiment contains, as component (D), at least one selected from the group consisting of (polyglyceryl-2 isostearate / dimer dilinoleate) copolymer, hydrogenated castor oil dimer dilinoleate, hydrogenated castor oil isostearate, phytosteryl / octyldodecyl lauroyl glutamate, octyldodecyl stearoyloxystearate, polyglyceryl-10 isostearate, polyglyceryl-10 diisostearate, polyglyceryl-10 decaisostearate, and polybutene.

[0049]

[0049] The content of component (D) in the oil-based solid cosmetic composition according to this embodiment may be 3% by mass or more, 4% by mass or more, 6% by mass or more, or 8% by mass or more, 10% by mass or more, 15% by mass or more, 20% by mass or more, 30% by mass or more, 40% by mass or more, 50% by mass or more, 55% by mass or more, 60% by mass or more, 65% by mass or more, 70% by mass or more, 75% by mass or more, or 80% by mass or more, based on the total amount of the oil-based solid cosmetic composition. The content of component (D) in the oil-based solid cosmetic composition according to this embodiment may be 90% by mass or less, 85% by mass or less, 80% by mass or less, 75% by mass or less, 70% by mass or less, 65% by mass or less, 60% by mass or less, 50% by mass or less, 40% by mass or less, 30% by mass or less, 25% by mass or less, 20% by mass or less, 17% by mass or less, 15% by mass or less, or 13% by mass or less, based on the total amount of the oil-based solid cosmetic composition. The content of component (D) in the oil-based solid cosmetic composition according to this embodiment may be 3 to 90% by mass. In a particular embodiment, the content of component (D) in the oil-based solid cosmetic composition according to this embodiment may be 3 to 20% by mass, and particularly 4 to 17% by mass, based on the total amount of the oil-based solid cosmetic composition. Furthermore, the content of component (D) is preferably 20 to 70% by mass, more preferably 22 to 60% by mass, even more preferably 24 to 50% by mass, and particularly preferably 25 to 45% by mass, based on the total amount of the oil-based solid cosmetic composition. By having the content of component (D) within the above range, an oil-based solid cosmetic composition with superior effects of the present invention, and particularly excellent durability, can be obtained.

[0050]

[0050] The oil-based solid cosmetic composition of this embodiment may contain dimer dilinoleyl diisostearate and / or dimer dilinoleyl dimer dilinoleate as component (D). When component (D) contains dimer dilinoleyl diisostearate and / or dimer dilinoleyl dimer dilinoleate, the total content of dimer dilinoleyl diisostearate and dimer dilinoleyl dimer dilinoleate may be 8% by mass or less, 7% by mass or less, 6% by mass or less, or 5% by mass or less, based on the total amount of the oil-based solid cosmetic composition. The total content of dimer dilinoleyl diisostearate and dimer dilinoleyl dimer dilinoleate may be 3% by mass or more, or 4% by mass or more, based on the total amount of the oil-based solid cosmetic composition. In certain embodiments, the total content of dimer dilinoleyl diisostearate and dimer dilinoleyl dimer dilinoleate is 3% to 8% by mass, particularly 4% to 7% by mass, based on the total amount of the oily solid cosmetic.

[0051]

[0051] Component (D) may be of natural origin, such as plant origin. As a component (D) whose raw materials, fatty acids and alcohol, are plant origin, for example, HAILUCENT ISDA from Higher Alcohol Industries Co., Ltd. can be used.

[0052] oil

[0052] In addition to components (A), (B), (C), and (D), the oily solid cosmetic composition according to this embodiment preferably further contains an oil as component (E). Component (E) is not particularly limited and may be, for example, a polar oil or a non-polar oil, and may be semi-solid or liquid. Component (E) may be of natural origin, such as plant or animal origin, or may be petroleum origin. In a particular embodiment, component (E) is an oil having at least one hydroxyl group. Component (E) may be used alone or in combination of multiple types.

[0053]

[0053] Component (E) may be, for example, polyglyceryl-2 triisostearate, polyglyceryl-2 tetraisostearate, hydrogenated castor oil dimer dilinoleate, caprylic / capric triglyceride, squalane, phytosteryl / octyldodecyl lauroyl glutamate, polyglyceryl-2 diisostearate, jojoba seed oil, jojoba esters, octyldodecyl myristate, isostearyl isostearate, isostearyl alcohol, octyldodecanol, diisostearyl malate, polyglyceryl-10 nonaisostearate, sunflower seed oil, pentaerythrityl tetraisostearate, tridecyl trimellitate, etc.

[0054]

[0054] Component (E) preferably contains a liquid oil having at least one hydroxyl group. Examples of liquid oils having one or more hydroxyl groups include polyglyceryl-2 triisostearate and diisostearyl malate. Component (E) also preferably contains squalane and / or di(phytosteryl / octyldodecyl) lauroyl glutamate.

[0055]

[0055] The content of component (E) in the oil-based solid cosmetic composition according to this embodiment may be 35% by mass or more, 37% by mass or more, 38% by mass or more, 40% by mass or more, 45% by mass or more, 50% by mass or more, 55% by mass or more, 60% by mass or more, 65% by mass or more, 70% by mass or more, 75% by mass or more, or 80% by mass or more, based on the total amount of the oil-based solid cosmetic composition. The content of component (E) in the oil-based solid cosmetic composition according to this embodiment may be 90% by mass or less, 88% by mass or less, 85% by mass or less, 82% by mass or less, 80% by mass or less, 75% by mass or less, 70% by mass or less, 65% by mass or less, 60% by mass or less, 55% by mass or less, or 50% by mass or less, based on the total amount of the oil-based solid cosmetic composition. In the oil-based solid cosmetic composition according to this embodiment, the content of component (E) may be 35-85% by mass, 37-82% by mass, 38-80% by mass, 38-70% by mass, 38-60% by mass, or 38-50% by mass, based on the total amount of the oil-based solid cosmetic composition.

[0056]

[0056] In the oil-based solid cosmetic composition according to this embodiment, the mass ratio of component (E) to component (D) may be 1-16:1, 2-16:1, 3-16:1, 4-16:1, 6-16:1, 1-14:1, 1-12:1, 1-10:1, 1-9:1, 1-7:1, 1-6:1, 1:1-16, 1:2-16, 1:3-16, 1-4-16, 1:6-16, 1:1-14, 1:1-12, 1:1-10, 1:1-9, 1:1-7, or 1:1-6. In the oil-based solid cosmetic composition according to this embodiment, the mass ratio of component (E) to component (D) is preferably 6-13:1, 6-11:1, or 6-9:1.

[0057] Coloring agents

[0057] The oil-based solid cosmetic composition according to this embodiment may contain a colorant. The colorant may be, for example, an organic synthetic dye, a natural dye, an inorganic pigment, a gloss pigment, etc. The organic synthetic dye may be, for example, a dye, a lake, or an organic pigment, and the inorganic pigment may be, for example, an extender pigment, a coloring pigment, a white pigment, etc. The oil-based solid cosmetic composition according to this embodiment may not contain a colorant. An oil-based solid cosmetic composition without a colorant is suitable for, for example, a lip balm. If the oil-based solid cosmetic composition according to this embodiment contains a colorant, the amount of the colorant may be, for example, 0.01 to 30% by mass or 0.001 to 2% by mass of the total amount of the oil-based solid cosmetic composition.

[0058]

[0058] The oil-based solid cosmetic composition according to this embodiment may contain water. However, it is preferable that the oil-based solid cosmetic composition according to this embodiment is substantially water-free. The water content of the oil-based solid cosmetic composition may be 1.0% by mass or less, preferably 0.5% by mass or less, more preferably 0.3% by mass or less, and even more preferably 0.1% by mass or less, based on the total amount of the oil-based solid cosmetic composition.

[0059]

[0059] The oily solid cosmetic composition according to this embodiment may further contain other components. Examples of other components include antioxidants, preservatives, UV absorbers, humectants, surfactants, solvents, fragrances, pharmaceuticals, chelating agents, pH adjusters, etc.

[0060]

[0060] The oil-based solid cosmetic according to this embodiment may be, for example, a makeup cosmetic applied to the skin or lips. The oil-based solid cosmetic may be, for example, lipstick, blush, lip balm, lip liner, foundation, concealer, face color, eyeliner, eyeshadow, etc. In a particular embodiment, the oil-based solid cosmetic is lipstick, lip balm, or lip liner.

[0061]

[0061] The oily solid cosmetic composition according to this embodiment may have a naturally derived index (excluding water) as defined in ISO 16128, for example, of 80% or more, preferably 85% or more, more preferably 90% or more, and even more preferably 95% or more. The naturally derived index may be 98% or more. The naturally derived index may be less than 100%, and preferably 99% or less.

[0062]

[0062] The oil-based solid cosmetic composition according to this embodiment may be, for example, in the form of a stick, or in any other shape. The oil-based solid cosmetic composition according to this embodiment may be contained in a container such as a stick-shaped container or a thin dish-shaped container. It is preferable that the oil-based solid cosmetic composition according to this embodiment is not a solid made by solidifying powder. The oil-based solid cosmetic composition according to this embodiment is particularly suitable as a stick-shaped cosmetic composition because it has sufficiently high durability.

[0063]

[0063] The oily solid cosmetic composition according to this embodiment can be manufactured by conventional methods, for example, by heating and dissolving each raw material as needed, mixing them uniformly, and then cooling and solidifying them.

[0064]

[0064] Another aspect of this embodiment relates to a beauty method for keratin care and / or cosmetic, which includes applying the above-described oily solid cosmetic composition to keratin, particularly to skin or lips. [Examples]

[0065]

[0065] The present invention will be specifically described below with reference to examples, but the present invention is not limited to these examples.

[0066]

[0066] Lipsticks with the formulations shown in Tables 1, 3 and 5 were prepared. The compositions contain components expressed in weight % of the total weight of the composition. The lipsticks were prepared by heating and melting the waxes according to a conventional method, mixing all the components, and molding them using a stick-type container. The mass ratio of component (A) to component (C), the mass ratio of component (B) to component (C), the mass ratio of component (E) to component (D), and the total amount of wax in the oil-based solid cosmetic composition are shown in Tables 2, 4 and 6.

[0067]

[0067] Details of the components used in each example are as follows. Candelilla (Euphorbia cerifera) wax: INA Trading, Candelilla wax SR-3 Rice (Oryza sativa) bran wax: Cerarica Noda, RiceWax No. 1 Carnauba (Copernicia cerifera) wax: Baerlocher FR, Cerauba Jaune Flor Paillettes Sunflower (Helianthus Annuus) Seed Wax: Yokozeki Oil & Fat Industry Co., Ltd. (Polyglyceryl-2 isostearate / dimer dilinoleate) copolymer: Higher Alcohol Industry Co., Ltd., HAILUCENT ISDA Hydrogenated castor oil dimer dilinoleate: Higher Alcohol Industry Co., Ltd., RISOCAST DA-L Dimer dilinoleyl dimer dilinoleate: Nippon Seika Co., Ltd., LUSPLAN DD-DA7 Hydrogenated castor oil isostearate: Higher Alcohol Industry Co., Ltd., RISOCAST MIS Lauroyl glutamate di(phytosteryl / octyldodecyl): Ajinomoto Co., Inc., ELDOW PS-203 Octyldodecyl stearoyl oxystearate: Higher Alcohol Industries Co., Ltd., RISOCAST ODSHS Polyglyceryl-10 Isostearate: Sakamoto Pharmaceutical Co., Ltd., S FACE IS-1001P Polyglyceryl-10 Diisostearate: Sakamoto Pharmaceutical Co., Ltd., S FACE IS-1002P Polyglyceryl-10 Decaisostearate: Sakamoto Pharmaceutical Co., Ltd., S FACE IS-1009P Polyglyceryl-2 Tetraisostearate: Sakamoto Pharmaceutical Co., Ltd., S FACE IS-204P

[0068]

[0068] [Table 1]

[0069] [Table 2]

[0070] [Table 3]

[0071] [Table 4]

[0072] [Table 5]

[0073] [Table 6]

[0074] [Table 7]

[0075] [Table 8]

[0076]

[0076] [Sensory evaluation] Sensory evaluation was conducted on the oil-based solid cosmetic compositions of the examples and comparative examples. The sensory evaluation was performed by molding the oil-based solid cosmetic composition into a stick shape and applying the stick to the lips. The items of sensory evaluation were melting sensation, smooth glide, and color payoff. Melting sensation refers to the melting sensation when applied to the lips. Smooth glide refers to a smooth, non-sticky spread. Color payoff refers to the quality of color development of the applied film (makeup film).

[0077]

[0077] Sensory evaluation was conducted by a panel of 10 cosmetic experts (ages 25-55) based on a single application to the lips, according to the following criteria. A rating of A to C indicates that the product is judged to be overall excellent. The results are shown in Tables 9 to 12. A: Wonderful B: Better C: Good D: Fail E: Not good F: Bad

[0078]

[0078] [Quality and Stability Evaluation] The quality and stability of the oil-based solid cosmetic compositions of the examples and comparative examples were evaluated. For quality, the oil-based solid cosmetic composition was molded into a stick shape, left to stand at 25°C for 24 hours, and then the condition of the cosmetic was observed after extending 5 mm from the container and applying it to the palm of the hand 10 times back and forth. If the stick shape was damaged after 10 back and forth applications, it was evaluated as "F," and if it could be used without any problems, it was evaluated as "A."

[0079]

[0079] Stability was evaluated by observing the appearance of oil-based solid cosmetic products molded into sticks, which were left standing at 45°C for one month with the top surface of the stick facing upwards. If significant changes (blooming) occurred or the stick shape could not be maintained, it was evaluated as "F", and if no change in appearance was observed, it was evaluated as "A". If both the quality and stability evaluations were evaluated as A, it was judged to be of excellent quality and stability. The results are shown in Tables 9 to 12.

[0080] [Table 9]

[0081] [Table 10]

[0082] [Table 11]

[0083] [Table 12]

[0084]

[0084] The results shown in the table demonstrate that all of the oily solid cosmetic compositions of the Examples of the Present Invention, containing components (A) to (D), are superior to comparative examples lacking one or more of components (A) to (D) in terms of solubility, smoothness, color payoff, and especially in terms of fracture testing and stability (Note: "A" means superior quality and stability for all compositions).

Claims

1. (A) Candelilla wax, (B) Plant-based and / or animal-based waxes having a melting point of 70°C or higher. (C) Monoesters of monovalent linear saturated fatty acids and monovalent linear saturated fatty alcohols having a total of 40 to 48 carbon atoms, and (D) An oily solid cosmetic comprising at least one selected from the group consisting of (polyglyceryl-2 isostearate / dimer dilinoleate) copolymer, hydrogenated castor oil dimer dilinoleate, hydrogenated castor oil isostearate, phytosteryl / octyldodecyl lauroyl glutamate, octyldodecyl stearoyloxystearate, polyglyceryl-10 isostearate, polyglyceryl-10 diisostearate, polyglyceryl-10 decaisostearate, and polybutene.

2. (A) Candelilla wax, (B) Plant-based and / or animal-based waxes having a melting point of 70°C or higher. (C) Monoesters of monovalent linear saturated fatty acids and monovalent linear saturated fatty alcohols having a total of 40 to 48 carbon atoms, and (D) An oil-based solid cosmetic containing 8% by mass or less of dimer dilinoleyl diisostearate and / or dimer dilinoleyl dimer dilinoleate based on the total amount of the oil-based solid cosmetic.

3. The cosmetic composition according to claim 1 or 2, wherein the plant-based wax is at least one selected from the group consisting of rice bran wax, carnauba wax, and sunflower seed wax.

4. The cosmetic composition according to any one of claims 1 to 3, wherein the monoester is at least one selected from the group consisting of behenyl stearate, arachidyl eicosanoate, henicosyl eicosanoate, behenyl eicosanoate, stearyl behenate, nonadecanyl behenate, arachidyl behenate, henicosyl behenate, and behenyl behenate.

5. (C) The cosmetic composition according to any one of claims 1 to 4, wherein component (C) is behenyl behenate.

6. The cosmetic composition according to any one of claims 1 to 5, further comprising, in addition to component (D), a liquid oil having at least one hydroxyl group.

7. A cosmetic composition according to any one of claims 1 to 6, which is a lipstick, blush, lip balm, lip liner, foundation, concealer, face color, eyeliner, or eyeshadow, preferably a lipstick, lip balm, or lip liner.

8. A cosmetic composition according to any one of claims 1 to 7, which is in the form of a stick.

9. The cosmetic composition according to any one of claims 1 to 8, further comprising a coloring agent.

10. A beauty method for keratin care and / or cosmetic application, comprising applying a cosmetic composition according to any one of claims 1 to 9 to keratin, particularly to the skin or lips.

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