Oil-based lip cosmetic

Abstract

The present invention addresses the problem of developing an oil-based lip cosmetic having appearance with no color development, ease of dying, and glossy feeling compatible with the skin. Provided is an oil-based lip cosmetic comprising the following components (A) to (B): (A) one or more components that are selected from Red No. 218, Red No. 223, and Orange No. 201; and (B) a powder that contains one or more inorganic powders therein, in which the outermost layer surface of each of the inorganic powders is silica.

Description

Oil-based lip cosmetic

[0001] The present invention relates to an oil-based lip cosmetic.

[0002] An oil-based lip cosmetic is one of the functions that is necessary to give color and a glossy feeling that blends well with the skin to the lips. By imparting color, it can create a healthy impression, and by imparting a glossy feeling that blends well with the skin, it can greatly affect the impression on people, such as making the appearance beautiful and prominent. Furthermore, it is important for maintaining the impression on people to prevent the applied color from fading due to eating or physical stimulation. Against this background, oil-based dyes are often used in recent years. An oil-based dye can stain the lips by contacting the lips and can exhibit a high makeup retention effect. On the other hand, when an oil-based dye is incorporated into a cosmetic formulation, the oil-based dye may develop color in the formulation depending on its compatibility with the components of the formulation. In order for an oil-based dye to exhibit excellent dyeing power on the lips, it is preferable that the oil-based dye does not develop color in the cosmetic before being dyed onto the lips. Conversely, if the oil-based dye reacts with the components of the formulation and the oil-based dye develops color in the cosmetic, the dyeing effect of the oil-based dye on the lips will decrease. Therefore, there has been a demand for an oil-based lip cosmetic that does not develop color in the oil-based lip cosmetic before being applied to the lips, that is, has excellent lack of color development in appearance, is easy to dye onto the lips, and can impart a glossy feeling that blends well with the skin.

[0003] So far, an oil-based solid cosmetic has been proposed that contains a specific oil-soluble dye, citric acid, phenyl-modified silicone, and silicone-treated synthetic phlogopite (synthetic fluorophlogopite), maintains a light appearance color during preparation, and prevents discoloration of the appearance over time, but when applied, once applied to the lips or skin, it exhibits sufficient color development by the oil-soluble dye in the formulation and has a good usability (see, for example, Patent Document 1).

[0004] Also, a makeup cosmetic has been proposed that contains a specific oil-soluble dye, a higher fatty acid metal salt, an oil component, and a specific amount of a pigment, and exhibits bright fluorescence color development and has good transparency (clear feeling) (see, for example, Patent Document 2).

[0005] Japanese Patent Publication No. 2019-108281 Japanese Patent Publication No. 2016-132650

[0006] However, while conventional technologies have explored cosmetics that do not develop color during preparation or over time, and cosmetics that have vivid color and transparency, these may not adhere well to the lips. Furthermore, the development of oil-based lip cosmetics that blend well with the skin and have excellent gloss has not yet been carried out.

[0007] In other words, the present invention aims to develop an oil-based lip cosmetic that is excellent in terms of lack of color development in appearance, adheres easily to the lips, and has a glossy finish that blends well with the skin.

[0008] In view of the above circumstances, the inventors conducted thorough research. As a result, they discovered that by combining one or more types selected from the group consisting of Red No. 218, Red No. 223, and Orange No. 201, and a powder containing one or more inorganic powders, with the outermost surface of the inorganic powder being silica, it is possible to achieve excellent lack of color development in appearance, ease of dyeing, and a glossy finish that blends well with the skin, thus completing the present invention.

[0009] In other words, the present invention may have the following configurations: [1] The present invention provides an oily lip cosmetic comprising the following components (A) to (B): (A) one or more selected from Red No. 218, Red No. 223 and Orange No. 201; (B) one or more inorganic powders in the powder, wherein the outermost surface of the inorganic powder is silica. [2] The present invention provides the oily lip cosmetic according to [1], wherein the silica of component (B) is non-porous. [3] The present invention provides the oily lip cosmetic according to [1] or [2], wherein the mass percentage of silica in component (B) is 0.1 to 50% by mass of the total component (B). [4] The present invention provides the oily lip cosmetic according to [1] or [2], wherein the inorganic powder of component (B) comprises one or more selected from metal oxides, silicates, carbonates, sulfates, and metal powders. [5] The present invention provides an oily lip cosmetic according to [1] or [2], wherein the metal oxide of component (B) contains titanium dioxide. [6] The present invention provides an oily lip cosmetic according to [1] or [2], wherein the inorganic powder of component (B) contains glass powder. [7] The present invention provides an oily lip cosmetic according to [1] or [2], further containing a compound having a carboxyl group as component (C). [8] The present invention provides an oily lip cosmetic according to [7], wherein component (C) is a carboxyvinyl polymer and / or an alkyl-modified carboxyvinyl polymer. [9] The present invention provides an oily lip cosmetic according to [1] or [2], wherein the average particle size of component (B) is 0.1 μm to 200 μm.

[10] A stain-inhibiting composition comprising silica as an active ingredient, comprising one or more selected from Red No. 218, Red No. 223 and Orange No. 201.

[0010] This figure shows the appearance images of Example 3, the blank of Example 3 with (A) removed, and Comparative Examples 1 and 2.

[0011] Preferred embodiments of the present invention will be described in detail below. However, the present invention is not limited to the following preferred embodiments and can be freely modified within the scope of the present invention. In this specification, percentages (%) are expressed in terms of mass unless otherwise specified. In this specification, when a numerical range is expressed using "~", the range includes the values ​​at both ends. In addition, the upper limit (less than or equal to) and lower limit (greater than or equal to) of each numerical range (~) can be arbitrarily combined as desired.

[0012] The present invention provides an oil-based lip cosmetic that exhibits excellent lack of color development in appearance, ease of staining, and a glossy finish that blends well with the skin.

[0013] Component (A), Red No. 218 (tetrachlorotetrabromofluorescein), Red No. 223 (tetrabromofluorescein), and Orange No. 201 (dibromofluorescein), are types of oil-soluble dyes of fluorane compounds having a fluorescein structure. These dyes react with proteins on the surface of the skin, causing the lactone ring of the fluorescein structure to open and form a carboxylate salt, thus producing color. They are classified as tar dyes. Because they produce red or orange color, they are widely used as colorants in makeup cosmetics such as lipstick. These dyes may be used individually or in combination of two or more. Examples of commercially available products include TPP Red No. 218, TPP Red No. 223, and Orange No. 201 (all manufactured by Kiseki Kasei Co., Ltd.), and one or two of these can be used. Among these, it is preferable that component (A) contains Red No. 218 and / or Red No. 223 due to its superior ease of dyeing.

[0014] The content of component (A) is not particularly limited, but from the viewpoint of ease of staining and a glossy finish that blends well with the skin, it is preferably 0.001% by mass or more (hereinafter, mass% will be simply abbreviated as "%"), more preferably 0.002% or more, even more preferably 0.01% or more, even more preferably 0.015% or more, and particularly preferably 0.02% or more, based on the total amount of oily lip cosmetic. Furthermore, from the viewpoint of lack of color development in appearance and a glossy finish that blends well with the skin, it is preferably 2% or less, more preferably 1% or less, even more preferably 0.5% or less, even more preferably 0.2% or less, particularly preferably 0.15% or less, and most preferably 0.1% or less. Furthermore, the above-mentioned upper and lower limits can be freely combined, but among them, 0.001 to 2% is preferred, 0.002 to 1% is more preferred, 0.002 to 0.5% is even more preferred, 0.01 to 0.2% is even more preferred, 0.015 to 0.15% is particularly preferred, and 0.02 to 0.1% is most preferred.

[0015] Component (B) is a powder containing one or more types of inorganic powders, wherein the outermost surface of the inorganic powder is silica. Here, "containing one or more types of inorganic powders" means that one powder contains one or more types of inorganic powders. "Containing two or more types of inorganic powders" means, for example, a composite powder of two types of inorganic compounds. And, "a powder whose outermost surface is silica among the inorganic powders" means that among the inorganic powders constituting one powder, silica is present on the surface side (the outermost layer of that inorganic powder (hereinafter also referred to as the outermost surface) is silica). Note that the outermost layer does not necessarily mean the entire surface of the powder, but also includes cases where silica is present in part. As component (B), the inorganic powders other than the outermost layer of the inorganic powder may be silica or not. In other words, as component (B), the inorganic powder may be entirely silica. Furthermore, other powders besides inorganic powders, such as organic powders, may be included in the powder of component (B), and their location is not particularly limited. In addition, in the case of a powder in the inorganic powder of component (B) where the outermost layer is silica, the outermost layer of silica may be further coated with organic matter and / or organic powder, and the location of the organic matter is not particularly limited. Also, if the inorganic powder is a metal powder, it is preferable that the outermost surface of the layer outside the metal powder is coated with silica.

[0016] Component (B) is, in one form, a silica-coated inorganic powder in which the outermost layer (outer surface) is silica and / or silica.

[0017] It is believed that the components contained in the inorganic powder are covered by the outermost layer of silica, which makes it difficult for component (B) to react with component (A) when it comes into contact with it, or prevents the components contained in the inorganic powder from leaching out to the outer layer due to the silica layer, or prevents the components contained in the inorganic powder from coming into contact with component (A) due to the silica layer. Therefore, it is believed that the components contained in the inorganic powder being covered by the outermost layer of silica results in an oily lip cosmetic that is excellent in terms of lack of visible color, ease of staining, and excellent in terms of a glossy finish that blends well with the skin.

[0018] The silica in the outermost layer of the inorganic powder of component (B) includes anhydrous silicic acid and / or hydrated silicic acid. In the case of synthetic anhydrous silicic acid, it may be obtained by any method, for example, by making a slurry of sodium silicate (water glass) in an alkaline environment and precipitating silica (wet method: precipitation method / gel method), by adding tetraalkoxysilane to a basic or alkaline solution and forming a silica film by hydrolysis of the tetraalkoxysilane (sol-gel method), by shifting the equilibrium in a hydrofluoric silicic acid solution by adding additives or raising the temperature to form silica (LPD method), or by polymerizing by spraying into the gas phase (CVD method). Examples of natural anhydrous silicic acid include quartz, tridymite, cristobalite, coesite, and quartz glass. Examples of hydrated silicic acid include colloidal silica, silicate oligomers, etc., in addition to the so-called amorphous "silica gel" obtained by gelling and drying silica hydrosol. Furthermore, water glass and alkoxysilanes can be used as raw materials for "silica gel." From the viewpoint of not developing color in appearance, it is preferable that the main component be anhydrous silicic acid, and anhydrous silicic acid that does not allow ions to elute or permeate, or that is of high density, is more preferable. This anhydrous silicic acid film may be a composite of two or more raw materials other than silica as the main component, and it may be a single film or a multilayer film.

[0019] The silica in component (B) is preferably high-density. Furthermore, the silica in component (B) is preferably non-porous. This is preferable because it enhances the effectiveness of the silica. Non-porous means that it has far fewer pores than porous silica, which is commonly used in cosmetics; it does not require that there are absolutely no pores on the silica surface. For example, non-porous silica is preferably one that does not have pores penetrating from the center to the surface within a radius of 1 / 2 of the silica's core. Also, the liquid absorption capacity measured by the method specified in JIS K 5101-13-1:2004 is preferably less than 120 ml / 100 g, and more preferably 50 ml / 100 g or less. While a lower BET specific surface area measured by the BET method tends to be preferable, the presence or absence of pores is important and depends on the size of the particles themselves, so it is not particularly limited. For example, the BET specific surface area measured by the BET method is preferably 0.2 to 50 m². ２ It is / g.

[0020] When component (B) is pure silica, the average particle size of the silica is, for example, 0.5 to 50 μm, preferably 1 to 30 μm, and more preferably 3 to 20 μm, from the viewpoint of the effect of silica addition.

[0021] The inorganic powder in component (B) can be any type commonly used in cosmetics, regardless of its shape (spherical, needle-shaped, plate-shaped, etc.), particle size (fine particles, pigment grade, etc.), or particle structure (porous, non-porous, etc.). The inorganic powder is not particularly limited, but may contain elements such as Al (aluminum), Mg (magnesium), Ca (calcium), Na (sodium), K (potassium), Si (silicon), Sn (tin), Zn (zinc), Co (cobalt), Fe (iron), Ba (barium), Zr (zirconium), Ti (titanium), and Ce (cerium). Examples include metal oxides, silicates such as silicate minerals, carbonates, sulfates, and metal powders. Compound powders of these may also be used, and one or more types may be used. Specifically, silicate powders include talc, mica, kaolin, sericite, muscovite, phlogopite, rosinite, biotite, bentonite, montmorillonite, hectorite, zeolite, calcined sericite, (fluoride / hydroxide / oxide) / (Mg / K / silicon), synthetic fluorophlogopite, clay minerals which are silicate minerals, aluminum silicate, magnesium silicate, aluminum magnesium silicate, calcium silicate, glass powder, silica (anhydrous silicic acid) and other silicates, aluminum oxide, aluminum hydroxide, magnesium oxide, tin oxide, zinc oxide, iron oxides such as yellow iron oxide, red iron oxide, and black iron oxide, metal oxides such as titanium oxide and cerium oxide, metal powders such as aluminum powder, sulfates such as hydroxyapatite, barium sulfate, and calcium sulfate, carbonates such as calcium carbonate and magnesium carbonate, and other inorganic powders such as boron nitride and bismuth oxychloride.

[0022] Furthermore, the inorganic powder in component (B) may be a composite powder, and is not particularly limited, but a composite of a metal oxide and a silicate is preferred. Specifically, the inorganic powder in component (B) can be titanium oxide coated mica, titanium oxide coated synthetic fluorphlogopite, titanium oxide coated glass powder, etc., but is not particularly limited.

[0023] In particular, from the viewpoint of lack of color development in appearance, ease of dyeing, and a glossy finish that blends well with the skin, the inorganic powder in component (B) preferably contains metal oxides such as iron oxide, zinc oxide, and titanium oxide, and is more preferably titanium oxide. Furthermore, titanium oxide coated with silica is preferable because it has a significantly higher effect of suppressing color development in appearance than the uncoated titanium oxide. In addition, among the silicates as inorganic powders in component (B), it is preferable to include clay minerals such as mica, sericite, synthetic fluorophlogopite, and talc, silica, and glass powder. From the viewpoint of a glossy finish that blends well with the skin and lack of color development in appearance, it is more preferable to include silica and / or glass powder, and even more preferable to include titanium oxide coated glass powder.

[0024] The inorganic powder in component (B) preferably contains one or more selected from the group consisting of metal oxides, silicates, carbonates, sulfates, and metal powders, as this further improves the ease of dyeing and the glossy feel that blends well with the skin.

[0025] The metal oxide that may be included in the inorganic powder of component (B) preferably contains at least one selected from the group consisting of titanium dioxide, zinc oxide, and iron oxide, and more preferably contains titanium dioxide, from the viewpoint of a glossy finish that is familiar to the skin.

[0026] The silicate contained in the inorganic powder of component (B) preferably contains glass powder, from the viewpoint of ease of dyeing and a glossy finish that blends well with the skin. The glass powder is preferably titanium oxide coated glass powder, from the viewpoint of a glossy finish that blends well with the skin.

[0027] Component (B) preferably contains at least one selected from the group consisting of silica (preferably non-porous silica), silica-coated metal oxide, silica-coated silicate, and silica-coated metal powder, more preferably contains at least one selected from the group consisting of silica, silica-coated metal oxide, and silica-coated silicate, more preferably contains at least one selected from the group consisting of silica-coated metal oxide and silica-coated silicate from the viewpoint of ease of dyeing, and preferably contains silica-coated silicate from the viewpoint of lack of color development in appearance and a glossy feel that blends well with the skin. The silica-coated metal oxide as component (B) is preferably at least one selected from silica-coated zinc oxide, silica-coated iron oxide, and silica-coated titanium oxide, and more preferably silica-coated titanium oxide.

[0028] Furthermore, in a preferred embodiment, component (B) may include at least one selected from the group consisting of silica (preferably non-porous silica), silica-coated zinc oxide, silica-coated iron oxide, silica-coated titanium oxide, and silica-coated titanium oxide coated glass powder.

[0029] Component (B) is preferably in the form of a plate-like powder from the viewpoint of providing a glossy finish that blends well with the skin.

[0030] Furthermore, while the average particle size of component (B) is not particularly limited, from the viewpoint of a skin-friendly glossy feel, an average particle size of 0.1 μm or more is preferred, more preferably 1 μm or more, more preferably 5 μm or more, and even more preferably 10 μm or more. Also, 200 μm or less is preferred, and 150 μm or less is more preferred. In addition, the above upper and lower limits can be freely combined, but among them, 0.1 μm to 200 μm is preferred, 1 μm to 200 μm is more preferred, 5 μm to 150 μm is even more preferred, and 10 μm to 150 μm is particularly preferred. Also, in one embodiment, the average particle size of component (B) may be 30 to 200 μm.

[0031] The average particle diameter and average thickness of component (B) were determined by observing the particle diameter of 30 particles using a scanning electron microscope (JEOL JCM-6000Plus Neoscope desktop scanning electron microscope) and then measuring the median diameter D50 value using an image analysis device (Luzex AP, Nireco). For plate-shaped powders, the longest diameter (maximum diameter) was used for particle diameter.

[0032] Examples of commercially available components (B) include Microglass Metashine MT1080RRS1 (red), Microglass Metashine MT1080RYS1 (yellow), Microglass Metashine MT1080RSS1 (all containing 0.1-5% silica-coated titanium oxide coated glass powder (average particle size 80 μm)), Microglass Metashine MT1120RRS1 (0.1-5% silica-coated titanium oxide coated glass powder (average particle size 120 μm)) (manufactured by Nippon Sheet Glass Co., Ltd.), SYMPHOLIGHT WW-E (10% silica-coated titanium oxide (average particle size 0.4 μm)), SYMPHOLIGHT RW-TE (10% silica-coated red iron oxide), SYMPHOLIGHT Examples include, but are not limited to, YW-TE (10% silica-coated yellow iron oxide) (manufactured by JGC Catalysts & Chemicals Co., Ltd.), Maxlight ZS-032 (silica-coated fine particle zinc oxide) (manufactured by Showa Denko Corporation), and CHIFFONSIL P-3R (average particle size approximately 5 μm, non-porous silica, oil absorption capacity (JIS K-5101 - linseed oil: 20 ml / 100 g or less)) (manufactured by JGC Catalysts & Chemicals Co., Ltd.).

[0033] The powder of component (B) may, if necessary, be subjected to one or more surface treatments by known methods using a silicone compound, alkylsilane treatment, metal soap, hydrocarbon oil, higher fatty acids and their salts, phospholipids, higher alcohols, esters, waxes, waxes, amino acids, acylated amino acids, surfactants, etc. Alternatively, the powder of component (B) may be untreated powder that has not been treated with any surface treatment agent (other than silica).

[0034] The content of component (B) is not particularly limited, but from the viewpoint of lack of color development in appearance, ease of staining, and a glossy feel that blends well with the skin, it is preferably 0.01% or more, more preferably 0.1% or more, and even more preferably 0.3% or more, relative to the total amount of oily lip cosmetic. Furthermore, from the viewpoint of lack of color development in appearance and ease of staining, the content of component (B) is preferably 20% or less, more preferably 10% or less, even more preferably 7% or less, and particularly preferably less than 5%, relative to the total amount of oily lip cosmetic. In addition, the above upper and lower limits can be freely combined, but among them, the content of component (B) is preferably 0.01 to 20%, more preferably 0.1 to 10%, even more preferably 0.3 to 7%, and particularly preferably 0.3% or more and less than 5%, relative to the total amount of oily lip cosmetic.

[0035] When component (B) is a silica-coated powder, the silica content in component (B) is not particularly limited, but from the viewpoint of no color development in appearance and ease of dyeing, it is preferably 0.1% or more, more preferably 0.5% or more, more preferably 1.0% or more, and even more preferably 2.0% or more relative to the total amount of component (B). Furthermore, it is preferably 50% or less, more preferably 20% or less, and even more preferably 10% or less. In addition, the above upper and lower limits can be freely combined, but among them, 0.1 to 50% is preferred, 0.5 to 50% is preferred, more preferably 1.0 to 20% is preferred, and even more preferably 2.0 to 10%.

[0036] The mass ratio of component (A) to component (B) (A) / (B) (hereinafter also simply referred to as (A) / (B)) is not particularly limited, but from the viewpoint of lack of color development in appearance, ease of dyeing, and a glossy feel that blends well with the skin, the lower limit is preferably 0.001 or more, more preferably 0.003 or more, even more preferably 0.007 or more, and particularly preferably 0.01 or more. Furthermore, the upper limit of (A) / (B) is preferably 5 or less, more preferably 3 or less, even more preferably 0.5 or less, even more preferably 0.3 or less, particularly preferably 0.15 or less, and may be less than 0.1. Furthermore, the above-mentioned upper and lower limits can be freely combined, but among them, (A) / (B) is preferably 0.001 to 5, more preferably 0.001 to 3, even more preferably 0.003 to 0.5, even more preferably 0.007 to 0.3, particularly preferably 0.01 to 0.15, and most preferably 0.01 or more and less than 0.1.

[0037] Furthermore, as components that may be used in the present invention, it is preferable to further incorporate a compound having a carboxyl group (C) from the viewpoint of not developing color in appearance and ease of dyeing. Examples of compounds having a carboxyl group (C) include acids such as acetic acid, propionic acid, glycolic acid, lactic acid, hydroxyacrylic acid, glyceric acid, malic acid, tartaric acid, citric acid, glutamic acid, and aspartic acid, as well as alkyl-modified carboxyvinyl polymers such as (acrylates / alkyl(C10-30)) crosspolymer, acrylates / ethylhexyl acrylate copolymer, (acrylates / steareth-20 methacrylate) copolymer, (acrylates / beheneth-25 methacrylate) copolymer, (styrene / acrylates) copolymer, (acrylates / dimethicone) copolymer, acrylates copolymer, and carbomer, and acrylic acid compounds such as these can be used one or more in combination. In addition, while acrylic acid compounds are usually neutralized with an alkaline agent before use in aqueous cosmetics, in this application they may be used without excessive neutralization, leaving free acrylic acid groups intact.

[0038] Among the components (C) that can be used in the present invention, from the viewpoint of not developing color in appearance, it is preferable that one or more are selected from the group consisting of malic acid, citric acid, carboxyvinyl polymer and alkyl-modified carboxyvinyl polymer, and more preferably one or more are selected from the group consisting of malic acid, citric acid, (acrylates / alkyl acrylate (C10-30)) crosspolymer, acrylates copolymer and carboxyvinyl polymer, more preferably carboxyvinyl polymer and / or alkyl-modified carboxyvinyl polymer, and even more preferably (acrylates / alkyl acrylate (C10-30)) crosspolymer. Such component (C) may be in powder form.

[0039] The content of component (C) that can be used in the present invention is not particularly limited, but from the viewpoint of not developing color in appearance, it is preferably 0.01% or more, more preferably 0.03% or more, and even more preferably 0.05% or more, relative to the total amount of oily lip cosmetic. From the viewpoint of ease of staining, it is preferably 0.2% or less, more preferably 0.15% or less, and even more preferably 0.1% or less. Furthermore, the above upper and lower limits can be freely combined, but among them, 0.01 to 0.2% is preferred, 0.03 to 0.15% is more preferred, and 0.05 to 0.1% is even more preferred.

[0040] The mass ratio (B) / (C) of component (B) to component (C) that can be used in the present invention is not particularly limited, but from the viewpoint of not developing color in appearance, it is preferably 0.1 or more, more preferably 1.5 or more, even more preferably 10 or more, and may be 15 or more. Also, from the viewpoint of ease of dyeing, the mass ratio (B) / (C) of component (B) to component (C) is preferably 350 or less, more preferably 200 or less, even more preferably 170 or less, and may be 100 or less, or 50 or less. Furthermore, the above upper and lower limits can be freely combined, but among them, 0.1 to 350 is preferred, 1.5 to 200 is more preferred, 10 to 170 is even more preferred, and may be 10 to 100, 10 to 50, or 15 to 50.

[0041] In addition to the above components (A) to (C), the oil-based lip cosmetic of the present invention may contain components commonly used in cosmetics, such as oil components, powders, surfactants, fibers, alcohols (monohydric alcohols, polyhydric alcohols, etc.), gelling agents, water-soluble polymers, aqueous components such as moisturizing agents, saccharides, antioxidants, antifoaming agents, beauty components, preservatives, fragrances, etc., as long as the effects of the present invention are not impaired.

[0042] The oiliness in the oil-based lip cosmetic of the present invention means that the oil is the continuous phase and substantially does not contain water. Here, "substantially does not contain" means that it does not contain at all or, if it does contain, the amount is extremely small so as not to affect the present invention. For example, the water content is preferably 5% or less, more preferably 3% or less, still more preferably 1% or less, and particularly more preferably 0.1% or less, based on the oil-based lip cosmetic.

[0043] Further, since the oil-based lip cosmetic of the present invention has oil as the continuous phase, it contains an oil agent.

[0044] Among them, it is preferable to contain at least a liquid oil as the oil agent. The liquid oil refers to an oil that is liquid (has fluidity) at 25°C.

[0045] Liquid oils specifically include hydrocarbons such as isododecane, isohexadecane, light isoparaffin, liquid paraffin, squalane, squalene, α-olefin oligomer, polybutene, liquid isoparaffin, heavy liquid isoparaffin, polyisobutylene, hydrogenated polyisobutene, rapeseed oil, avocado oil, almond oil, apricot kernel oil, perilla oil, orange oil, olive oil, kiwi seed oil, sesame oil, wheat germ oil, rice germ oil, rice bran oil, safflower oil, sage oil, soybean oil, tea seed oil, and corn oil. Rosalia oil, rapeseed oil, evening primrose oil, camellia oil, peach kernel oil, Job's tears oil, peanut oil, sunflower oil, grape seed oil, meadowfoam oil, rosemary oil, jojoba oil, macadamia nut oil, lavender oil, rosehip oil, mink oil, and other animal and vegetable oils; glyceryl tri-2-ethylhexanoate, isotridecyl isononanoate, isononyl isononanoate, cetyl 2-ethylhexanoate, isopropyl myristate, isopropyl palmitate, ethylhexyl palmitate, octyldodecyl myristate Glyceryl trioctanoate, caprylic / capric triglyceride, glyceryl diisostearate, glyceryl triisostearate, polyglyceryl triisostearate (e.g., polyglyceryl-2 triisostearate), decaglyceryl decaisostearate, propylene glycol dicaprate, neopentyl glycol dicaprate, polyglyceryl triisostearate, diisostearyl malate, neopentyl glycol diethylhexanoate, tetraisostearate Esters such as pentaerythritol, pentaerythritol tetra-2-ethylhexanoate, dipentaerythritol pentaisostearate, dialkyl carbonate, bisethoxydiglycol cyclohexane-1,4-dicarboxylic acid, hydrogenated rosin dimer dilinoleyl condensate, and tridecyl trimellitate; fatty acids such as oleic acid and isostearic acid; higher alcohols such as oleyl alcohol, 2-octyldodecanol, 2-decyltetradecanol, isostearyl alcohol, and 2-hexyldecanol;Silicone oils such as dimethylpolysiloxane (dimethicone), methyltrimethicone, methylphenylpolysiloxane, octamethylcyclotetrasiloxane, decamethylcyclopentasiloxane, tetramethyltetrahydrogencyclotetrasiloxane, tetramethyltetraphenylcyclotetrasiloxane, tetramethyltetratrifluoropropylcyclotetrasiloxane, pentamethylpentatrifluoropropylcyclopentasiloxane, polyether-modified methylpolysiloxane, oleyl-modified methylpolysiloxane, polyvinylpyrrolidone-modified methylpolysiloxane; fluorine-based oils such as perfluoropolyether, perfluorodecane, perfluorooctane; lanolin derivatives such as lanolin acetate, isopropyl lanolin fatty acid, lanolin alcohol; liquid ultraviolet absorbers such as 2-ethylhexyl paramethoxycinnamate, ethylhexyl salicylate, etc. These liquid oils may be used alone or in combination of two or more.

[0046] Among them, from the viewpoint of the effects of the present invention, it is preferable to contain esters as the liquid oil, and it is more preferable to contain glycerin fatty acid esters.

[0047] The content of the liquid oil is preferably 50 to 97% by mass, and more preferably 60 to 95% by mass.

[0048] Furthermore, the oily lip cosmetic of the present invention may contain an oily gelling agent to impart viscosity and hardness. Examples of oily gelling agents include hydrocarbon waxes, silicone waxes, oils and fats, dextrin fatty acid esters such as dextrin palmitate, sucrose fatty acid esters, inulin fatty acid esters, 12-hydroxystearic acid, fatty acids or their salts, fuming anhydrous silicic acid such as dimethylsilylated silica, fatty acid glycerin esters that are solid at 25°C such as (behenate / eicosanedioic acid) glyceryl, (dimethicone / vinyl dimethicone) crosspolymer, (vinyl dimethicone / alkyl di Examples include cross-linked silicone polymers such as methicone crosspolymer, dimethicone / phenylvinyldimethicone crosspolymer, dimethicone / PEG crosspolymer, and alkyldimethicone / PEG crosspolymer; organically modified clay minerals such as stearalkonium hectorite and disteardimonium hectorite; amino acid-based gelling agents such as dibutyllauroyl glutamide and dibutylethylhexanoyl glutamide; oil-soluble polyurethanes; and vinylpyrrolidone / eicosene copolymers. These oil-based gelling agents may be used individually or in combination of two or more.

[0049] The oily lip cosmetic of the present invention can be manufactured according to conventional methods. For example, it can be obtained by uniformly mixing oily components (A), (B), and (C), adding optional components as needed, and filling the mixture into a container, but the manufacturing method is not limited to this.

[0050] The properties of the oily lip cosmetic of the present invention are not particularly limited, and it can be liquid, paste, semi-solid, solid, etc., but among these, liquid, paste, and semi-solid forms are preferred from the viewpoint of a glossy finish that blends well with the skin.

[0051] The dosage form of the oily lip cosmetic of the present invention is not particularly limited, but examples include oily liquid (paste-like) cosmetics, oily multilayer cosmetics, oily solid cosmetics, multicolor solid cosmetics, aerosol cosmetics, etc. In particular, oily liquid (paste-like) cosmetics and oily solid cosmetics are more preferred, and oily liquid (paste-like) cosmetics are even more preferred.

[0052] The oily lip cosmetic of the present invention can be used in lip cosmetics such as lipstick, lip gloss, and lip serum, although this is not particularly limited. Here, "lip cosmetic" refers to a cosmetic used on the lips.

[0053] The present invention can also be suitably used as a stain-inhibiting composition (stain-inhibiting agent) of component (A), with silica as the active ingredient, from the viewpoint of not exhibiting color development in appearance. Here, stain-inhibiting means that one or more selected from the group consisting of Red No. 218, Red No. 223, and Orange No. 201 will not stain the lips until they are applied (they will not stain in the formulation). Another preferred embodiment is a stain-inhibiting composition (stain-inhibiting agent) that contains (B) one or more inorganic powders, with the outermost surface of the inorganic powder being silica as the active ingredient, and will not stain the lips until one or more selected from the group consisting of Red No. 218, Red No. 223, and Orange No. 201 are applied.

[0054] The present invention may also include the following embodiments: [1] An oily lip cosmetic comprising the following components (A) to (B): (A) one or more selected from the group consisting of Red No. 218, Red No. 223 and Orange No. 201; (B) one or more inorganic powders, the oily lip cosmetic comprising a powder in which the outermost surface of the inorganic powder is silica. [2] The oily lip cosmetic according to [1], wherein the silica is non-porous. [3] The oily lip cosmetic according to [1] or [2], wherein the mass percentage of the silica content is 0.1 to 50% by mass of the total component (B). [4*] The oily lip cosmetic according to any one of [1] to [3], wherein the inorganic powder comprises one or more selected from the group consisting of metal oxides, silicates, carbonates, sulfates, and metal powders. [5*] The oily lip cosmetic according to [4*], wherein the metal oxide comprises titanium dioxide. [6*] An oily lip cosmetic according to any one of [1] to [3] or [4*], wherein the inorganic powder contains titanium dioxide. [7*] An oily lip cosmetic according to [4*], wherein the silicate contains glass powder. [8*] An oily lip cosmetic according to any one of [1] to [3], [4*] to [7*], wherein the inorganic powder of component (B) contains glass powder. [9*] An oily lip cosmetic according to any one of [1] to [3], [4*] to [8*], further containing a compound having a carboxyl group as component (C). [10*] An oily lip cosmetic according to [9*], wherein the compound having a carboxyl group is a carboxyvinyl polymer and / or an alkyl-modified carboxyvinyl polymer. [11*] An oily lip cosmetic according to any one of [1] to [3], [4*] to [10*], wherein the average particle size of component (B) is 0.1 μm to 200 μm. [12*] (B) A stain-inhibiting composition that does not stain the lips until one or more selected from the group consisting of Red No. 218, Red No. 223, and Orange No. 201 are applied to the lips, comprising one or more inorganic powders, wherein the outermost surface of the inorganic powder is silica as an active ingredient.

[0055] The present invention will be described in detail below with reference to examples. However, these examples do not limit the present invention in any way.

[0056] Examples 1-21 and Comparative Examples 1-5: Oil-based paste (liquid) lipsticks were prepared using the formulations shown in Tables 1-3 below, according to the manufacturing method described below. They were evaluated for (a) lack of color development in appearance, (b) ease of staining, and (c) skin-friendly glossiness using the evaluation method described below. The results are also shown in Tables 1-3.

[0057]

[0058]

[0059]

[0060] <Evaluation Items> (i) Lack of color development in appearance <Evaluation Method> For the lack of color development in appearance, a blank sample without component (A) was prepared for each sample of the Examples and Comparative Examples and used as a standard. The blank sample was heated to over 90°C along with the oil-based paste lipstick of the Examples and Comparative Examples, and 20g of the sample was placed in a glass container with an outer diameter of Φ46mm and a height of 61mm. After cooling to room temperature of 25°C, it was compared with the blank sample. The degree of change in red color during preparation was observed visually by a panel of 15 cosmetic evaluation specialists, and the total scores from each panel were averaged. The average score was then judged according to the following criteria.

[0061] <Absolute Evaluation Criteria> (a) Lack of color development in appearance (Score): (Evaluation) 5: No color change at all 4: Changed to a pale appearance color without dullness 3: Changed to a pale appearance color with some dullness 2: Somewhat vivid color development is observed 1: Vivid color development is observed <4-stage judgment criteria> (Judgment): (Evaluation) ◎: Higher than 4.0 ○: Higher than 3.0 and 4.0 or lower △: Higher than 2.0 and 3.0 or lower ×: 2.0 or lower Note that, as shown in Figure 1, a blank that does not include (A) was used as the standard, and images were taken comparing it with some samples of the examples. The HSB color model (Hue, Saturation, Value or Brightness) was measured in Photoshop, and the absolute value of the difference was evaluated. A visual observation by a panel of 15 cosmetic product evaluation specialists confirmed a correlation.

[0062] <Evaluation Items> (b) Ease of staining (c) Skin-friendly glossiness <Evaluation Method> For items (b) and (c) above, a usage test was conducted on each sample by 15 cosmetic evaluation panelists. Each panelist used the oil-based paste lipstick of the example and comparative example, and evaluated it on a 5-point scale according to the absolute evaluation criteria below, assigning a score. For each sample, the average score was calculated from the sum of the scores of all panelists and judged according to the following criteria. (b) Ease of staining was evaluated on whether each sample was perceived as easy to stain when applied to the lips, and (c) Skin-friendly glossiness was evaluated on whether, immediately after application, the staining layer spread evenly and uniformly on the lips, and whether a skin-friendly glossiness was perceived without any feeling of concealment.

[0063] <Absolute Evaluation Criteria> (b) Ease of dyeing, (c) Skin-friendly glossiness (Rating) : (Evaluation) 5: Excellent 4: Good 3: Neutral 2: Poor 1: Very Poor <Four-Stage Judgment Criteria> (Judgment) : (Evaluation) ◎: Higher than 4.0 ○: Higher than 3.0 and 4.0 or lower △: Higher than 2.0 and 3.0 or lower ×: 2.0 or lower.

[0064] (Manufacturing Method) (Only the raw materials listed in the No. in each table shall be used.) A: Components (16) to (20) were heated to 100°C and mixed uniformly. B: Components (1), (2), (14), and (15) were uniformly mixed and dispersed in a portion of A. C: Components (3) to (13) were added to the remainder of A and mixed uniformly, and then further mixed with B. D: C was filled into an applicator container at 90°C and cooled to room temperature to obtain an oily paste-like lipstick.

[0065] As is clear from the results of Examples 1 to 21 in Tables 1 to 3, the embodiments of the present invention were excellent in terms of lack of color development in appearance, ease of dyeing, and a glossy feel that blends well with the skin.

[0066] Furthermore, to verify the lack of color development in the appearance of (i), sample images were taken according to the method described above, and the HSB color model (hue, saturation, and value or brightness) was measured. The blank obtained by removing (A) from Example 3 had H=39, S=25, and B=89, while Example 3 had H=40, S=21, and B=85. The absolute value of the difference in H (hue), |ΔH|, was a very small value of 1. In other words, it could be confirmed from the image that the hue had not changed and there was no color development.

[0067] In contrast, in Comparative Example 1, |ΔH| = 21 (|ΔS| = 2, |ΔB| = 1), and in Comparative Example 2, |ΔH| = 30 (|ΔS| = 3, |ΔB| = 0). The absolute value of the difference in H (hue) |ΔH| was very large, and it was confirmed from the appearance that the color had developed.

[0068] Comparative Examples 3 to 5 also did not contain component (B), and silica was replaced with a powder in which it was not present in the outermost layer of the inorganic powder. The evaluation of the lack of color development in appearance was particularly low, which was consistent with the trend of the color measurement values ​​described above. Comparative Example 1 did not yield satisfactory quality, especially in terms of ease of dyeing.

[0069] Example 22: Oil-based stick lipstick ingredients (%) (1) Dimer dilinoleate (phytosteryl / isostearyl / cetyl / stearyl / behenyl) 15 (2) Hydrogenated polyisobutene 8 (3) Synthetic wax 5 (4) Microcrystalline wax 1 (5) Triethylhexanoin 15 (6) Diisostearyl malate 4 (7) Polyglyceryl triisostearate 2 Remainder (8) Neopentyl glycol dicaprate 2 (9) Dimethicone 20cs 5 (10) Trimethylsiloxysilicate 4 (11) Vanillyl butyl ether 0.2 (12) Capsaicin 0.2 (13) Mineral oil 1 (14) Apricot kernel oil 0.1 (15) Squalane 0.1 (16) Cocoa butter 0.3 (17) Red No. 218 (Component (A)) 0.03 (18) 10% silica-coated iron oxide (average particle size 0.3 μm) *18 (Component (B)) 2 (19) Acrylic acid / alkyl acrylate (C10-30) copolymer (Component (C)) 0.1 (20) Olive fruit oil 0.1 (21) Jojoba seed oil 0.1 (22) Sesame seed oil 0.1 (23) Tocopherol 0.1 (24) Caprylyl glycol 0.05 *18 SYMPHOLIGHT RW-TE (manufactured by JGC Catalysts & Chemicals Co., Ltd.) (Manufacturing method) A: Components (1) to (7) were heated to 100°C and uniformly dissolved.B: Components (8) to (24) were added to A and dispersed uniformly. C: B was poured into a stick container at 90°C and cooled to room temperature to obtain an oil-based stick lipstick.

[0070] The oil-based stick lipstick of Example 22 was excellent in terms of its lack of color development, ease of staining, and a glossy finish that blended well with the skin.

[0071] Example 23: Oily Liquid Lip Serum Ingredients (%) (1) Polybutene 15 (2) Petrolatum 15 (3) Pentaerythrityl Tetraethylhexanoate 5 (4) Ethylhexyl Methoxycinnamate 6 (5) Cetyl Ethylhexanoate (remainder) (6) Polyglyceryl-2 Triisostearate 20 (7) Dimer Dilinoleyl Bis(Behenyl / Isostearyl / Phytosteryl) Dimer Dilinoleate 15 (8) Diphenylsiloxy Phenylenite Trimethicone 1 (9) Japanese Pepper Extract 0.05 (10) Safflower Oil 0.01 (11) Sesame Seed Oil 0.01 (12) Dipropylene Glycol 0.2 (13) Octyldodecanol 5 (14) Red No. 223 (Ingredient (A)) 0.07 (15) Acrylic acid / C10-30 alkyl acrylate copolymer (Component (C)) 0.07 (16) 20% silica-coated zinc oxide (average particle size 0.03 μm) *19 (Component (B)) 1.4 (17) Sodium hyaluronate 0.1 *19 Maxlight ZS-032 Manufactured by Showa Denko Co., Ltd. (Manufacturing method) A: Components (1) to (7) were heated to 100°C and uniformly dissolved. B: Components (8) to (17) were added to A and uniformly dispersed. C: B was filled into a container with an applicator at 70°C and cooled to room temperature to obtain an oily liquid lip serum.

[0072] The oil-based liquid lip serum of Example 23 was excellent in terms of lack of visible color, ease of staining, and a glossy finish that blended well with the skin.

[0073] Example 24: Oily Stick Lipstick Ingredients (%) (1) Pentaerythrityl Tetraethylhexanoate 20 (2) Polybutene 15 (3) Tridecyl Trimellitate 30 (4) Synthetic Wax 8 (5) Ethylene / Propylene Copolymer 3 (6) Polyglyceryl-2 Triisostearate Remainder (7) Petrolatum 2 (8) Dimer Dilinoleate (Phytosteryl / Isostearyl / Cetyl / Stearyl / Behenyl) 10 (9) Phenoxyethanol 0.2 (10) Dipropylene Glycol 0.5 (11) Red No. 218 (Ingredient (A)) 0.05 (12) Red No. 223 (Ingredient (A)) 0.01 (13) Acrylates / C10-30 Alkyl Acrylate Copolymer (Ingredient (C)) 1 (14) 0.1-5% silica-coated titanium oxide-coated glass powder (average particle size 200 μm) (component (B)) 3 (manufacturing method) A: Components (1) to (8) were heated to 110°C and uniformly dissolved. B: Components (9) to (14) were added to A and uniformly dispersed. C: B was poured into a stick container at 100°C and cooled to room temperature to obtain an oil-based stick lipstick.

[0074] The oil-based stick lipstick of Example 24 was excellent in terms of its lack of color development, ease of staining, and skin-friendly glossiness.

[0075] Example 25: Oily Lip Gloss Ingredients (%) (1) Mineral Oil 20 (2) Tridecyl Trimellitate 25 (3) Decyltetradecanol 5 (4) Polybutene 25 (5) Polyglyceryl-2 Triisostearate 3 (6) Diisostearyl Malate (remainder) (7) Dextrin Palmitate 2 (8) Dextrin Palmitate / Ethylhexanoate 0.5 (9) Dimethicone 0.8 (10) Dimethylsilylated Silica 1.5 (11) Dipropylene Glycol 0.7 (12) Tocopherol 0.05 (13) Jojoba Seed Oil 0.5 (14) Meadowfoam Seed Oil 0.3 (15) Moringa Seed Oil 0.7 (16) Sodium Hyaluronate 0.01 (17) Red No. 218 (Component (A)) 0.25 (18) Acrylic acid / alkyl acrylate (C10-30) copolymer (Component (C)) 0.75 (19) 0.1-5% silica-coated titanium dioxide coated glass powder (average particle size 80 μm) (Component (B)) 0.3 (20) 0.1-5% silica-coated titanium dioxide coated glass powder (average particle size 120 μm) (Component (B)) 0.4 (21) 0.1-5% silica-coated titanium dioxide coated glass powder (average particle size 200 μm) (Component (B)) 0.2 (Manufacturing method) A: Components (1) to (9) were heated to 100°C and uniformly dissolved. B: Components (10) to (21) were added to A and uniformly dispersed. C: B was filled into a container with a coating at 80°C and cooled to room temperature to obtain an oily lip gloss.

[0076] The oil-based lip gloss of Example 25 was excellent in terms of its lack of visible color, ease of staining, and skin-friendly glossiness.

[0077] This application is based on Japanese Patent Application No. 2024-224784, filed on December 20, 2024, the disclosures of which are referenced and incorporated as a whole.

Claims

1. The following components (A) and (B): (A) one or more selected from the group consisting of Red No. 218, Red No. 223, and Orange No. 201; (B) one or more inorganic powders, the oily lip cosmetic comprising one or more inorganic powders, the powder having silica as its outermost surface layer.

2. The oily lip cosmetic according to claim 1, wherein the silica is non-porous.

3. The oily lip cosmetic composition according to claim 1 or 2, wherein the mass percentage of silica is 0.1 to 50% by mass of the total component (B).

4. The oily lip cosmetic composition according to claim 1 or 2, wherein the inorganic powder comprises one or more selected from the group consisting of metal oxides, silicates, carbonates, sulfates, and metal powders.

5. The oily lip cosmetic according to claim 4, wherein the metal oxide contains titanium oxide.

6. The oily lip cosmetic according to claim 4, wherein the silicate contains glass powder.

7. The oily lip cosmetic composition according to claim 1 or 2, further comprising a compound having a carboxyl group as component (C).

8. The oily lip cosmetic according to claim 7, wherein the compound having a carboxyl group is a carboxyvinyl polymer and / or an alkyl-modified carboxyvinyl polymer.

9. The oily lip cosmetic composition according to claim 1 or 2, wherein the average particle size of component (B) is 0.1 μm to 200 μm.

10. (B) A stain-inhibiting composition that does not stain the lips until one or more selected from the group consisting of Red No. 218, Red No. 223, and Orange No. 201 is applied to the lips, comprising one or more inorganic powders, wherein the outermost surface of the inorganic powders is silica as an active ingredient.

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