Oiling agent for cosmetics and cosmetics containing same

Abstract

The present invention relates to an oil agent for cosmetics, which contains (A) 70-99% by mass of a primary alcohol having a branched chain and 20-30 carbon atoms, and (B) 1-30% by mass of a primary alcohol having a branched chain and 12-19 carbon atoms. An emulsion cosmetic containing the oil agent for cosmetics, (C) a C3-6 bivalent polyhydric alcohol, and (D) a nonionic surfactant having an HLB value of 10-18 in a predetermined content ratio; and a cosmetic composition containing the oil agent for cosmetics, (C) a C3-6 bivalent polyhydric alcohol, and (D) a nonionic surfactant having an HLB value of 10-18. The cosmetic contains the component (A) and the component (B) at a predetermined content ratio, and (F) an inorganic powder having an average particle diameter of 10 nm to 100 [mu] m. According to the present invention, it is possible to provide: an emulsion cosmetic which exhibits excellent masticity when applied to skin in a high-temperature and high-humidity state and excellent penetration to skin in a high-temperature and high-humidity state, and which exhibits little unpleasant adsorption after application; provided is a cosmetic which suppresses the feeling of dryness and friction due to the containing of an inorganic powder, and which can give a balance between a heavy feeling and a skin-friendly feeling when applied to moist skin.

Description

Technical Field

[0001] The present invention relates to an oil agent for cosmetics and cosmetics containing the same. More specifically, the present invention relates to a cosmetic oil agent which has a good thick feeling when applied to skin in a high temperature and high humidity state, has an excellent penetration feeling into the skin in a high temperature and high humidity state, and has little unpleasant adsorption feeling after application, an emulsified cosmetic containing the cosmetic oil agent, and a cosmetic containing the cosmetic oil agent and an inorganic powder. Background Art

[0002] Since dry skin and rough skin are not only found on the face but also on the hands, feet and other parts of the body, skin care cosmetics have traditionally been used for the purpose of moisturizing the skin or preventing skin dryness. As the feeling of use pursued by such skin care cosmetics, in addition to the moisturizing feeling that is an essential characteristic of skin care cosmetics, the thick feeling when applied and the feeling of penetration into the skin can also be cited. Therefore, for the oily agent mixed into the skin care cosmetics for the purpose of improving the moisturizing feeling, it is also required to propose an oily agent with excellent thick feeling when applied and the feeling of penetration into the skin. Patent Document 1 discloses that, in order to improve the penetration feeling into the skin, one or more selected from esters of oleic acid and alcohols having 1 to 4 carbon atoms, liquid higher alcohols having 12 to 24 carbon atoms, and liquid higher fatty acids having 12 to 24 carbon atoms are used as skin-penetrating components in an emulsified skin external preparation. However, according to the technology described in Patent Document 1, an emulsified skin external preparation having excellent penetration feeling into the skin can be obtained, but there is a problem that the thickness feeling during application is insufficient as the penetration feeling into the skin is improved.

[0003] Patent document 2 proposes an emulsified cosmetic composition containing, as an oil component, a higher alcohol that is solid at room temperature and a higher alcohol that is liquid at room temperature, phospholipids, and oily components other than the higher alcohols in a specific content ratio, which can impart an effect of adjusting skin texture, making the skin smooth, and making the skin plump, elastic, and soft the next morning. However, in recent years, from the viewpoint of convenience, skin care cosmetics are required to be applied to wet skin after bathing or to skin in a high-temperature and high-humidity state after towel drying. However, the emulsified cosmetics described in Patent Document 2 do not have a sufficient sense of penetration into skin in a high-temperature and high-humidity state.

[0004] Patent document 3 discloses: an O / W type emulsified skin external composition containing an oily component that is liquid or semisolid at 25°C, a multi-chain multi-hydrophilic surfactant having multiple long-chain hydrophobic groups and multiple hydrophilic groups in the molecule, and an emulsifying polymer, wherein the oily component has excellent residual properties on the skin and can be used on moist skin. However, although the O / W type emulsified skin external composition described in Patent Document 3 has an excellent thick feeling when applied to wet skin, the feeling of penetration into the skin is insufficient.

[0005] Furthermore, based on the recent popularization of smartphones, navigation systems, etc., from the perspective of the operability of liquid crystal screens, if the applied cosmetics remain on the skin, fingerprints will adhere to the liquid crystal screen, the sliding property will deteriorate, and an unpleasant feeling of residue on the screen will become a problem, and it is desired to develop a cosmetic that can improve the unpleasant feeling of residue. However, it is extremely difficult to realize a cosmetic product that maintains a heavy feel when applied to skin in a high-temperature and high-humidity state, has excellent penetration into the skin in a high-temperature and high-humidity state, and improves the unpleasant adsorption feeling.

[0006] In addition, in the cosmetics containing powders such as foundation and sunscreen cosmetics, inorganic powders such as white pigment, coloring pigment, ultraviolet scattering agent (titanium dioxide, zinc oxide, etc.) are used. These inorganic powders have a coloring effect or an effect of protecting against ultraviolet rays that makes the skin look beautiful. On the other hand, in the above-mentioned cosmetics, in addition to the main functions such as coloring and ultraviolet protection, the use feeling such as the heavy feeling during coating, the skin-friendly feeling with the skin, and the spreadability on the skin are also taken seriously. If the content of inorganic powder is increased in order to improve the functions such as the above-mentioned coloring and ultraviolet protection, dryness and friction will be significantly caused when the cosmetics are applied to the skin, and the use feeling is reduced.

[0007] For example, Patent Document 4 proposes the following technology: in an oil-in-water emulsified cosmetic containing 2.5% to 30% by mass of an ultraviolet scattering agent having a hydrophobic surface, a hydrophobically modified alkyl cellulose is used as an emulsifier, and a water-soluble thickener with low salt resistance is further used to impart a watery feeling in use. However, although the oil-in-water emulsified cosmetic proposed in Patent Document 4 has a good skin-friendly feeling in use, the dry feeling and friction feeling when applied to the skin still have room for improvement. In addition, the above-mentioned Patent Document 3 discloses an O / W type emulsified skin external composition having excellent residual property of the oily component on the skin, comprising an oily component that is liquid or semisolid at 25° C., a multi-chain multi-hydrophilic surfactant having multiple long-chain hydrophobic groups and multiple hydrophilic groups in the molecule, and an emulsifying polymer. Although the O / W type emulsified skin external composition described in Patent Document 3 has an excellent effect of leaving the oily component on the skin after being applied to wet skin and rinsed off, the skin-friendly feeling is insufficient. Furthermore, cosmetics are used in various situations such as after washing the face, skin care, and bathing, but when the skin is wet, the desired feeling of use is often not obtained. In particular, there is the following problem: when the cosmetics are directly applied to wet skin, it is difficult to achieve both a heavy feeling and a skin-friendly feel. Therefore, there is a demand for a cosmetic product in which the dry feeling and frictional feeling due to the inclusion of an inorganic powder are suppressed and a balance is achieved between a thick feeling and a skin-friendly feel when applied to moist skin. [Prior art literature] [Patent Literature]

[0008] [Patent Document 1] Japanese Patent Application Publication No. 2007-238488 [Patent Document 2] Japanese Patent Application Publication No. 2005-53879 [Patent Document 3] Japanese Patent Application Publication No. 2017-178904 [Patent Document 4] Japanese Patent Application Publication No. 2015-120682 Summary of the invention [Problems to be solved by the invention]

[0009] Therefore, the object of the present invention is to provide a cosmetic oil agent which is preferable as an oily raw material for cosmetics, which has a good thick feeling when applied to skin in a high temperature and high humidity state, and has an excellent penetration feeling on the skin in a high temperature and high humidity state, and has less unpleasant adsorption feeling after application. In addition, it is also an object to provide a cosmetic containing the above-mentioned cosmetic oil agent, in particular, to provide an emulsified cosmetic, which has an excellent thick feeling when applied to skin in a high temperature and high humidity state and a penetration feeling on the skin in a high temperature and high humidity state, and further has less unpleasant adsorption feeling after application, and is suitable for use on moist skin and skin in a high temperature and high humidity state. Furthermore, an object of the present invention is to provide a cosmetic in which the dry feeling and frictional feeling due to the inclusion of an inorganic powder are suppressed and a thick feeling and a skin-friendly feeling are achieved when applied to moist skin.

Methods to solve the problem

[0010] In view of the above, the present inventors conducted intensive studies and found that the above problems can be solved by using a cosmetic oil containing a branched primary alcohol having 20 to 30 carbon atoms and a branched primary alcohol having 12 to 19 carbon atoms in specific amounts. The inventors further conducted studies and completed the present invention. Furthermore, the present inventors have found that the above-mentioned problems in cosmetics containing inorganic powders can be solved by combining the above-mentioned cosmetic oil with an inorganic powder having an average particle size of 10 nm to 100 μm, and have completed the present invention after further studies.

[0011] That is, the present invention is as follows. [1] A cosmetic oil agent comprising 70% to 99% by mass of (A) a branched primary alcohol having 20 to 30 carbon atoms and 1% to 30% by mass of (B) a branched primary alcohol having 12 to 19 carbon atoms. [2] An emulsified cosmetic comprising: 1% by mass to 60% by mass of the cosmetic oil according to [1], (C) a divalent to hexavalent polyol having 3 to 6 carbon atoms, and (D) a nonionic surfactant having an HLB value of 10 to 18, wherein the ratio of the total content of the components (A) and (B) to the content of the component (C) [{(A)+(B)} / (C)] is 0.05 to 30 in terms of mass ratio. [3] A cosmetic comprising 0.5% to 60% by mass of (A) a branched primary alcohol having 20 to 30 carbon atoms, 0.01% to 30% by mass of (B) a branched primary alcohol having 12 to 19 carbon atoms, and 2% to 50% by mass of (F) an inorganic powder having an average particle size of 10 nm to 100 μm, wherein the content ratio of the component (A) to the component (B) [(A) / (B)] is 2.3 to 99 by mass ratio. [Effects of the invention]

[0012] According to the present invention, there can be provided a cosmetic oil agent which has a good weighty feel when applied to skin in a high temperature and high humidity state, has an excellent penetration feeling into the skin in a high temperature and high humidity state, and has little unpleasant adsorption feeling after application. Furthermore, according to the present invention, a cosmetic having a good thick feeling and a good penetration feeling on the skin in a high temperature and high humidity state when applied to the skin in a high temperature and high humidity state can be provided. In particular, an emulsified cosmetic having an excellent thick feeling and a good penetration feeling on the skin in a high temperature and high humidity state when applied to the skin in a high temperature and high humidity state, and further, having a small unpleasant adsorption feeling after application, being suitable for wet skin after bathing or skin in a high temperature and high humidity state after being dried with a towel, and having excellent operability on a liquid crystal screen can be provided. Furthermore, according to the present invention, it is possible to provide a cosmetic product which can suppress the dry feeling and frictional feeling caused by the inorganic powder and can achieve both a thick feeling and a skin-friendly feeling when applied to moist skin. DETAILED DESCRIPTION

[0013] The present invention provides an oil agent for cosmetics. The cosmetic oil of the present invention contains (A) a branched primary alcohol having 20 to 30 carbon atoms and (B) a branched primary alcohol having 12 to 19 carbon atoms.

[0014] In the cosmetic oil of the present invention, the branched primary alcohol having 20 to 30 carbon atoms which can be used as the component (A) is not particularly limited as long as it can be used as an oil in cosmetics, but preferably has 20 to 28 carbon atoms, more preferably has 20 to 27 carbon atoms, further preferably has 20 to 24 carbon atoms, and particularly preferably has 20 carbon atoms. Specific examples of the component (A) include 2-octyl-1-dodecanol, 2-decyl-1-dodecanol, 2-decyl-1-tetradecanol, 2-dodecyl-1-hexadecanol, 2-dodecyl-1-heptadecanol, 2-tetradecanol, etc. Among them, 2-octyl-1-dodecanol, 2-decyl-1-dodecanol, 2-decyl-1-tetradecanol, and 2-dodecyl-1-hexadecanol are preferred, 2-octyl-1-dodecanol, 2-decyl-1-dodecanol, and 2-decyl-1-tetradecanol are more preferred, and 2-octyl-1-dodecanol is particularly preferred. In the present invention, the above-mentioned component (A) may be used alone or in combination of two or more. As the component (A) above, commercially available products provided by various companies for cosmetic purposes can be used.

[0015] The content of the component (A) in the cosmetic oil of the present invention is 70% by mass to 99% by mass. When the content of component (A) exceeds 99% by mass, the penetration feeling to the skin and the adsorption feeling after application may be deteriorated. From the viewpoint of the penetration feeling to the skin and the adsorption feeling after application, the content of component (A) is preferably 97% by mass or less, and more preferably 95% by mass or less. In addition, when the content of component (A) is less than 70% by mass, the weighty feeling when applied to the skin may be insufficient. From the viewpoint of the weighty feeling when applied to the skin, the content of component (A) is preferably 75% by mass or more, more preferably 78% by mass or more, and further preferably 80% by mass or more.

[0016] In the cosmetic oil of the present invention, the branched primary alcohol having 12 to 19 carbon atoms which can be used as the component (B) is not particularly limited as long as it can be used as an oil in cosmetics, but preferably has 14 to 19 carbon atoms, more preferably has 17 to 18 carbon atoms. Specific examples of the component (B) include 2-butyl-1-octanol, 2-pentyl-1-nonanol, 2-hexyl-1-decanol, 14-methyl-1-pentadecanol, 2-pentyl-1-dodecanol, 2-octyl-1-nonanol, 16-methyl-1-heptadecanol, 2-octyl-1-decanol, and 4-methyl-1-octadecanol. Among them, 2-pentyl-1-nonanol, 2-hexyl-1-decanol, 14-methyl-1-pentadecanol, 2-pentyl-1-dodecanol, 2-octyl-1-nonanol, 16-methyl-1-heptadecanol, 2-octyl-1-decanol, and 4-methyl-1-octadecanol are preferred, and 2-pentyl-1-dodecanol, 2-octyl-1-nonanol, 16-methyl-1-heptadecanol, and 2-octyl-1-decanol are more preferred. In the present invention, the component (B) may be used alone or in combination of two or more. As the component (B), commercially available products provided by various companies for cosmetic purposes can be used.

[0017] The content of the component (B) in the cosmetic oil of the present invention is 1% by mass to 30% by mass. When the content of the component (B) is less than 1% by mass, the adsorption feeling after application may be deteriorated. From the viewpoint of the adsorption feeling after application, the content of the component (B) is preferably 3% by mass or more, more preferably 5% by mass or more. In addition, when the content of component (B) is more than 30% by mass, the feeling of heaviness during application and the feeling of penetration into the skin may be deteriorated. From the viewpoint of the feeling of heaviness during application and the feeling of penetration into the skin, the content of component (B) is preferably 25% by mass or less, more preferably 22% by mass or less, and further preferably 20% by mass or less.

[0018] The total content of components (A) and (B) in the cosmetic oil of the present invention is preferably 76 to 100% by mass, more preferably 81 to 100% by mass, and even more preferably 85 to 100% by mass.

[0019] The cosmetic oil of the present invention may contain oils other than the components (A) and (B) or lipophilic additives within the range not impairing the characteristics of the present invention. The oily agent other than the components (A) and (B) is not particularly limited as long as it is compatible with the components (A) and (B). From the viewpoint of the heavy feeling during application and the adsorption feeling after application, it is preferred to contain the following triglyceride as the component (E). Examples of the lipophilic additive include lipophilic antioxidants, preservatives, and ultraviolet absorbers.

[0020] The cosmetic oil of the present invention can be produced by further adding a lipophilic oil or a lipophilic additive to the above-mentioned components (A) and (B) as necessary, and mixing them uniformly.

[0021] The cosmetic oil of the present invention can be preferably used as an oily raw material of cosmetics. The cosmetics that can use the cosmetic oil of the present invention are not particularly limited as long as they are cosmetics in the form of cosmetics that can contain oily components, and examples thereof include oily cosmetics such as beauty oils, cleansing oils, and hair oils; emulsified cosmetics for skin or hair such as lotions, skin creams, and hair creams; and emulsified cosmetics such as emulsion foundations and cream foundations. It is particularly preferably used in the emulsified cosmetics of the present invention described below. The cosmetic oil of the present invention can be used as a feel improver in cosmetics, particularly in emulsified cosmetics, to give a thicker feel when applied to the skin, and can further exhibit an excellent penetration feeling on the skin in a high temperature and high humidity state, thereby improving the unpleasant adsorption feeling after application.

[0022] The above-mentioned cosmetics containing the cosmetic oil of the present invention can be produced by conventional methods using, according to the respective forms, water, lower alcohols such as ethanol, oils other than the above-mentioned components (A) and (B), surfactants, moisturizers, thickeners, hair conditioners, antioxidants, stabilizers, preservatives, pearlescent agents, pH adjusters, ultraviolet absorbers, hydrotropes, pigments, dyes, bactericides, anti-inflammatory agents, astringents, refreshing agents, fragrances, plant extracts and other common cosmetic ingredients.

[0023] The invention also provides an emulsified cosmetic. The emulsified cosmetic of the present invention contains the cosmetic oil of the present invention, (C) a divalent to hexavalent polyol having 3 to 6 carbon atoms, and (D) a nonionic surfactant having an HLB value of 10 to 18.

[0024] The emulsified cosmetic of the present invention contains the above-mentioned cosmetic oil of the present invention as a feel improving agent. The content of the cosmetic oil of the present invention in the emulsified cosmetic of the present invention is preferably 1% to 60% by mass, more preferably 1% to 50% by mass, and further preferably 1% to 40% by mass. When the content of the cosmetic oil of the present invention is less than 1% by mass, the feel-improving effect may not be fully exerted. In addition, when the content of the cosmetic oil of the present invention is greater than 60% by mass, the sense of penetration into the skin at high temperature and high humidity may be insufficient, and an unpleasant adsorption feeling may occur after application.

[0025] The divalent to hexavalent polyol having 3 to 6 carbon atoms contained as the component (C) in the emulsified cosmetic of the present invention is not particularly limited as long as it is a raw material that can be generally blended in cosmetics, and examples thereof include diols such as propylene glycol (1,2-propylene glycol), 1,3-propylene glycol, dipropylene glycol, 1,3-butylene glycol, 1,2-pentanediol, and 1,2-hexanediol; triols such as glycerol; diglycerol; tetritols such as erythritol and threitol; pentitols such as arabitol, xylitol, and ribitol; hexitols such as iditol, dulcitol, sorbitol, and mannitol, etc. From the viewpoint of the adsorption feeling after application, diols or triols having 3 to 6 carbon atoms are more preferred, and diols having 3 to 6 carbon atoms are further preferred. Specific examples of preferred component (C) include propylene glycol, dipropylene glycol, 1,3-propanediol, 1,3-butylene glycol, glycerol, and diglycerol. In the present invention, the component (C) may be used alone or in combination of two or more. As the component (C), commercially available products provided by various companies for cosmetic purposes can be used.

[0026] From the viewpoint of a sense of penetration into the skin and a sense of adsorption after application, the ratio of the content of the component (A) and the total content of the component (B) to the content of the component (C) in the emulsified cosmetic of the present invention [{(A)+(B)} / (C)] is 0.05 to 30, preferably 0.1 to 25, more preferably 0.2 to 20, and even more preferably 0.2 to 10 in terms of mass ratio. The content of the component (C) in the emulsified cosmetic of the present invention is preferably 1% by mass to 20% by mass, more preferably 1% by mass to 15% by mass.

[0027] In the emulsified cosmetic of the present invention, as the nonionic surfactant having an HLB (Hydrophilic-Lipophilic Balance) value of 10 to 18 which can be used as the component (D), there is no particular limitation on the nonionic surfactant generally used for cosmetics as long as it has an HLB value of 10 to 18. For example, polyoxyethylene alkyl or alkenyl ethers having a polyether chain as a hydrophilic group, such as polyoxyethylene (9E.O.) lauryl ether and polyoxyethylene (10E.O.) oleyl ether; polyoxyethylene polyoxypropylene glycol ethers (160E.O.) (30P.O.) and the like; glycol); polyoxyethylene (20E.O.) polyoxypropylene (8P.O.) cetyl ether, polyoxyethylene (30E.O.) polyoxypropylene (6P.O.) decyl tetradecyl ether and other polyoxyethylene polyoxypropylene alkyl ethers; polyoxyethylene (40E.O.) hydrogenated castor oil, polyoxyethylene (60E.O.) hydrogenated castor oil and other polyoxyethylene hydrogenated castor oils; polyoxyethylene (30E.O.) castor oil, polyoxyethylene (50E.O.) castor oil and other polyoxyethylene castor oils; polyethylene glycol fatty acid esters such as polyethylene glycol (25E.O.) monostearate; polyoxyethylene fatty acid glycerides such as polyoxyethylene (15E.O.) monostearate glyceryl; polyoxyethylene (20E.O.) sorbitol Polyoxyethylene sorbitan fatty acid esters such as polyoxyethylene (20E.O.) sorbitan monolaurate, polyoxyethylene (20E.O.) sorbitan monostearate, polyoxyethylene (20E.O.) sorbitan monoisostearate, and polyoxyethylene (20E.O.) sorbitan monooleate; polyoxyethylene sorbitan fatty acid esters such as polyoxyethylene (60E.O.) sorbitan tetrastearate and polyoxyethylene (60E.O.) sorbitan tetraoleate; polyglycerol fatty acid esters having a polyglycerol chain as a hydrophilic group such as pentaglycerol monolaurate, pentaglycerol monostearate, hexaglycerol monolaurate, decaglycerol monolaurate, decaglycerol monomyristicate, decaglycerol monostearate, and decaglycerol distearate. The component (D) is used as an emulsifier in the emulsified cosmetic of the present invention, and may be used alone or in combination of two or more. As the component (D), commercially available products provided by various companies as nonionic surfactants for cosmetics can be used.

[0028] From the viewpoint of further stably emulsifying the cosmetic oil of the present invention, the component (D) preferably has an HLB value of 10 to 17, and more preferably 10 to 16. The HLB value of the nonionic surfactant can be calculated by the Griffin method. From the viewpoint of a heavy feeling when applied to the skin and a feeling of adsorption after application, polyoxyethylene sorbitan fatty acid esters and polyglycerol fatty acid esters having an HLB value of 10 to 18 are preferably used, and polyglycerol fatty acid esters are more preferably used. From the viewpoint of a feeling of adsorption after application, the number of carbon atoms of the fatty acid constituting the polyoxyethylene sorbitan fatty acid ester or polyglycerol fatty acid ester is preferably 10 to 20, and more preferably 12 to 18. The HLB value of the average degree of polymerization of the polyglycerol constituting the polyglycerol fatty acid ester is not particularly limited as long as it can stably emulsify the cosmetic oil of the present invention, but is preferably 2-10, and more preferably 3-10. Examples of the polyoxyethylene sorbitan fatty acid ester or polyglycerol fatty acid ester include monoesters, diesters, triesters, etc. There are no particular limitations as long as the polyoxyethylene sorbitan fatty acid ester or polyglycerol fatty acid ester has an HLB value of 10 to 18 and can stably emulsify the cosmetic oil of the present invention, but monoesters and diesters are preferably used, and monoesters are more preferably used.

[0029] The content of the component (D) in the emulsified cosmetic of the present invention is preferably 0.1% by mass to 10% by mass, more preferably 0.1% by mass to 5% by mass, from the viewpoint of emulsion stability.

[0030] The emulsified cosmetic of the present invention may further contain triglyceride as component (E) in addition to the cosmetic oil of the present invention, component (C) and component (D). When the emulsified cosmetic of the present invention contains component (E), the effect of improving the heavy feeling when applied to the skin and the unpleasant adsorption feeling after application is improved, which is more preferred. In the emulsified cosmetic of the present invention, examples of triglycerides that can be used as the component (E) include triglycerides containing one or more of higher fatty acids such as caproic acid, caprylic acid, capric acid, 2-ethylhexanoic acid, lauric acid, tridecanoic acid, isotridecanoic acid, myristic acid, palmitic acid, isopalmitic acid, stearic acid, isostearic acid, eicosanoic acid, behenic acid, lignoceric acid, myristic acid, palmitoleic acid, oleic acid, elaidic acid, erucic acid, linoleic acid, linolenic acid, coconut oil fatty acid, palm kernel oil fatty acid, hydrogenated palm kernel oil fatty acid, palm oil fatty acid, castor oil fatty acid, and hydrogenated castor oil fatty acid as constituent fatty acids; and animal and plant oils and fats such as olive oil, macadamia nut oil, sunflower oil, palm oil, palm kernel oil, safflower oil, castor oil, hydrogenated castor oil, coconut oil, camellia oil, cocoa butter, and shea butter. Among them, olive oil, sunflower oil, and tri(caprylic / capric)glyceride can be selectively used. These (E) components may be used alone or in combination of two or more. As the component (E), commercially available products provided by various companies for cosmetic purposes can be used.

[0031] The content of the component (E) in the emulsified cosmetic of the present invention is preferably 0.1% by mass to 20% by mass, more preferably 0.1% by mass to 10% by mass.

[0032] Without prejudice to the characteristics of the present invention, the emulsified cosmetic of the present invention may further contain solvents such as water and lower alcohols; oils such as hydrocarbon oils, higher fatty acids, straight-chain higher alcohols, silicone oils, and ester oils as needed; surfactants other than the above-mentioned component (D), moisturizers, thickeners, antioxidants, stabilizers, preservatives, pearlescent agents, pH adjusters, ultraviolet absorbers, hydrotropes, pigments, dyes, bactericides, anti-inflammatory agents, astringents, cooling agents, fragrances, plant extracts, and other additives that are commonly used in cosmetics.

[0033] The emulsified cosmetic of the present invention can be emulsified and produced by the following conventional emulsification means: a method in which water, a hydrophilic additive, etc. are added to the above-mentioned components (C) and (D) as required, the mixture is homogenized and heated to prepare an aqueous phase, and then an oil phase is added to the cosmetic oil of the present invention, other oily components such as the component (E) and a lipophilic additive are added to the cosmetic oil of the present invention as required, the mixture is homogenized and heated to prepare an oil phase, and the mixture is mixed and emulsified; a method in which water, a hydrophilic additive, other oily components such as the component (E) and a lipophilic additive are added to the cosmetic oil of the present invention, the above-mentioned components (C) and (D), the mixture is mixed and heated, and then a shear force is applied by a homomixer or the like to emulsify the mixture, etc.

[0034] The emulsified cosmetics of the present invention can be preferably provided as oil-in-water emulsified cosmetics, and can also be provided as skin cosmetics such as lotion, massage cream, face cream, moisturizing cream, etc.; body cosmetics such as hand cream, foot cream, body cream, etc.; sunscreen cosmetics such as sunscreen lotion and sunscreen cream; base makeup cosmetics such as base makeup milk and base makeup cream; beauty makeup cosmetics such as liquid foundation and foundation cream, etc.

[0035] The emulsified cosmetic of the present invention has an excellent sense of thickness and penetration into the skin under high temperature and high humidity conditions when applied to the skin under high temperature and high humidity conditions, and further has little unpleasant adsorption feeling after application. Therefore, the emulsified cosmetic of the present invention is suitable for wet skin after bathing and skin in a high-temperature and high-humidity state after towel-drying, and is also excellent in operability on liquid crystal screens.

[0036] Furthermore, the present invention provides a cosmetic containing an inorganic powder (hereinafter also referred to as "the powder-containing cosmetic of the present invention" in this specification). The powder-containing cosmetic of the present invention contains (A) a branched primary alcohol having 20 to 30 carbon atoms, (B) a branched primary alcohol having 12 to 19 carbon atoms, and (F) an inorganic powder having an average particle size of 10 nm to 100 μm.

[0037] In the powder-containing cosmetic of the present invention, the branched primary alcohol having 20 to 30 carbon atoms contained as the component (A) is as described above with respect to the cosmetic oil of the present invention. The content of the component (A) in the powder-containing cosmetic of the present invention is 0.5% by mass to 60% by mass. When the content of the component (A) is less than 0.5% by mass, the effect of suppressing the dry feeling after application and the frictional feeling during application cannot be sufficiently obtained, and the heavy feeling when applied to wet skin may also be insufficient. The content of the component (A) is preferably 1% by mass or more, more preferably 2.5% by mass or more, from the viewpoint of the effect of suppressing the dry feeling after application and the frictional feeling during application, and the heavy feeling when applied to wet skin. If the content of the component (A) exceeds 60% by mass, the effect of suppressing the dry feeling after application and the frictional feeling during application may be insufficient, and the skin-friendly feeling with wet skin may be deteriorated. From the viewpoint of improving the touch when applied to the skin such as a dry feeling and a frictional feeling, and the skin-friendly feel with moist skin, the content of the component (A) is preferably 40% by mass or less, more preferably 30% by mass or less, further preferably 20% by mass or less, and particularly preferably 15% by mass or less.

[0038] In the powder-containing cosmetic of the present invention, the branched primary alcohol having 12 to 19 carbon atoms contained as the component (B) is as described above with respect to the cosmetic oil of the present invention. The content of the component (B) in the powder-containing cosmetic of the present invention is preferably 0.01% by mass to 30% by mass. When the content of the component (B) is less than 0.01% by mass, the effect of suppressing the dry feeling after application and the frictional feeling during application cannot be sufficiently obtained, and the skin-friendly feeling when applied to wet skin may be insufficient. The content of the component (B) is preferably 0.05% by mass or more, more preferably 0.1% by mass or more, from the viewpoint of the effect of suppressing the dry feeling after application and the frictional feeling during application and the skin-friendly feeling when applied to wet skin. If the content of the component (B) exceeds 30% by mass, the effect of suppressing the dry feeling after application and the frictional feeling during application is insufficient, and the heavy feeling when applied to wet skin and the skin-friendly feeling with wet skin may be deteriorated. The content of the component (B) is preferably 20% by mass or less, more preferably 10% by mass or less, from the viewpoint of the effect of suppressing the dry feeling after application to the skin and the frictional feeling when applied to the skin, and the heavy feeling when applied to wet skin and the skin-friendly feeling with wet skin.

[0039] The content ratio of the component (A) to the component (B) [(A) / (B)] in the powder-containing cosmetic of the present invention is 2.3 to 99 in terms of mass ratio. When the ratio [(A) / (B)] is less than 2.3, the effect of suppressing the dry feeling after application and the friction feeling during application is insufficient, and the heavy feeling when applied to wet skin and the skin-friendly feeling with wet skin may be deteriorated. If the ratio [(A) / (B)] is greater than 99, the effect of suppressing the dry feeling after application and the frictional feeling during application may be insufficient, and the skin-friendly feeling with wet skin may be deteriorated. From the viewpoint of improving the touch feeling when applied to the skin such as dry feeling and friction feeling, the heavy feeling when applied to wet skin, and the skin-friendly feeling with wet skin, the above ratio [(A) / (B)] is preferably 3 or more, more preferably 4 or more. Furthermore, the above ratio [(A) / (B)] is preferably 30 or less, more preferably 20 or less, and even more preferably 10 or less.

[0040] The total content of the components (A) and (B) in the powder-containing cosmetic of the present invention is 1% to 60% by mass, preferably 3% or more by mass. In addition, the total content of the components (A) and (B) is preferably 50% by mass or less, more preferably 40% by mass or less, further preferably 30% by mass or less, and particularly preferably 20% by mass or less. When the total content of the components (A) and (B) in the powder-containing cosmetic of the present invention is less than 1% by mass, the effect of improving the texture when applied to the skin may not be fully exhibited. On the other hand, when the total content of the components (A) and (B) exceeds 60% by mass, the effect of suppressing the frictional feeling during application is insufficient, and the skin-friendly feeling with wet skin may be deteriorated.

[0041] In the powder-containing cosmetic of the present invention, components (A) and (B) may be those prepared in advance using the above-mentioned cosmetic oil of the present invention.

[0042] The inorganic powder contained as the component (F) in the powder-containing cosmetic of the present invention is not particularly limited as long as it is a substance generally used as an inorganic pigment in cosmetics. Specifically, for example, inorganic body pigments (e.g., silica, talc, kaolin, mica, aluminum oxide, calcium carbonate, magnesium carbonate, barium sulfate, etc.); inorganic white pigments (e.g., titanium dioxide, zinc oxide, zirconium oxide, etc.); inorganic red pigments (e.g., red iron (ferric oxide), iron titanate, etc.); inorganic brown pigments (e.g., γ-ferric oxide, etc.); inorganic yellow pigments (e.g., yellow iron oxide (iron oxyhydroxide and ferrous hydroxide), ochre yellow, etc.); inorganic black pigments (e.g., black iron oxide (ferric oxide), low-valent titanium oxide, carbon black, etc.); inorganic purple pigments (e.g., manganese violet, cobalt violet (cobalt phosphate, hydrated ammonium cobalt phosphate, etc.)); inorganic green pigments (e.g., chromium oxide, hydrogen phosphate, etc.); chromium oxide, cobalt titanate, etc.); inorganic cyan pigments (for example, cobalt blue (cobalt aluminate), ultramarine (complex sodium aluminum sulfide silicate), cyan (ferrous cyanide, ammonium ferrous cyanide), etc.); pearlescent pigments (for example, mica titanium (mica coated with titanium dioxide), bismuth oxychloride coated with titanium dioxide, talc coated with titanium dioxide, bismuth oxychloride, etc.); colored pearlescent pigments (for example, mica coated with iron oxide, mica titanium coated with iron oxide, mica titanium coated with carbon black, mica titanium coated with black iron oxide, mica titanium coated with iron hydroxide, mica titanium coated with cyan, mica titanium coated with chromium hydroxide, mica titanium coated with chromium oxide, mica titanium coated with cobalt titanate, mica coated with low-valent titanium oxide, etc.), metal powder pigments (for example, aluminum powder, copper powder, etc.), etc.

[0043] In the present invention, as the (F) component, a powder obtained by surface-treating the inorganic pigment as described above using the following substances can be used: an inorganic compound such as silica, alumina, zirconium oxide, or an organic compound such as an organosilicon compound, a fluorine compound (perfluoroalkyl phosphate, perfluoroalkyl phosphate, perfluoroalkyl silane, etc.), a silane coupling agent, an N-acylamino acid (N-stearoyl-L-glutamic acid, etc.), a metal soap (aluminum stearate, etc.), and an amino acid. For the purpose of the present invention, it is preferred to use physical pigments such as silica, talc, and mica; white pigments such as titanium dioxide and zinc oxide; iron oxide (red iron oxide, yellow iron oxide, black iron oxide, etc.); and alumina-treated powders and hydrophobic-treated powders (organosilicon-treated powders, N-acylamino acid-treated powders, metal soap-treated powders, etc.) of these.

[0044] The average particle size of the inorganic powder contained as the component (F) in the powder-containing cosmetic of the present invention is 10 nm to 100 μm, preferably 10 nm to 2 μm, more preferably 10 nm to 1 μm, further preferably 10 nm to 300 nm, particularly preferably 10 nm to 50 nm. Here, the "average particle size" refers to the average particle size of primary particles of the inorganic powder, and is measured by a dynamic light scattering method or a laser diffraction / scattering method.

[0045] In the present invention, the component (F) may be used alone or in combination of two or more. As the component (F), commercially available products provided by various companies for cosmetic purposes can be used.

[0046] The content of the component (F) in the powder-containing cosmetic of the present invention is 2% by mass to 50% by mass. When the content of the component (F) is less than 2% by mass, a heavy feeling when applied to wet skin and a skin-friendly feeling with wet skin tend not to be obtained. From the viewpoint of a thick feeling when applied to the skin and a skin-friendly feeling with moist skin, the content of the component (F) in the powder-containing cosmetic of the present invention is preferably 2.5% by mass or more, more preferably 5% by mass or more, further preferably 10% by mass or more, and particularly preferably 18% by mass or more. On the other hand, when the content of the component (F) exceeds 50% by mass, a dry feeling after application or a frictional feeling during application may occur. The content of the component (F) is preferably 40% by mass or less, more preferably 35% by mass or less, from the viewpoint of a dry feeling after application and a frictional feeling during application.

[0047] Furthermore, within the scope that does not impair the characteristics of the present invention, the powder-containing cosmetics of the present invention may contain the following other ingredients that can be used in cosmetics as needed: solvents such as water and lower alcohols; oils other than components (A) and (B), such as hydrocarbon oils, higher fatty acids, waxes, silicone oils, ester oils, etc.; surfactants, emulsifiers, dispersants, suspending agents, humectants, thickeners, antioxidants, stabilizers, preservatives, pearlescent agents, pH adjusters, ultraviolet absorbers, hydrotropes, organic pigments, pigments, bactericides, anti-inflammatory agents, astringents, cooling agents, fragrances, plant extracts and other additives.

[0048] The powder-containing cosmetic of the present invention can be produced by a conventional production method adopted according to the form of the cosmetic. For example, in the case of an emulsified cosmetic, the cosmetic can be prepared by the following methods: a mechanical emulsification method in which the components (A), (B), and (F), additives added as needed, and water are mixed, and shear force is applied using a homogenizer, a homogenizer, a high-pressure homogenizer, etc., and the mixture is mixed to emulsify the mixture; an agent-in-water method in which the component (F) is dispersed in an aqueous phase containing a hydrophilic additive and an emulsifier added as needed, and an oil phase containing a lipophilic additive added as needed is added under stirring; an agent-in-oil method in which the component (F) is dispersed in an oil phase containing a lipophilic additive and an emulsifier added as needed, and an aqueous phase containing a hydrophilic additive added as needed is added under stirring, etc.

[0049] The powder-containing cosmetics of the present invention can be provided as, for example, oily cosmetics, or emulsified cosmetics of the oil-in-water type or the water-in-oil type, and can be provided as the following products: skin cosmetics such as lotions, massage creams, face creams, and moisturizing creams; body cosmetics such as hand creams, foot creams, and body milks; sunscreen cosmetics such as sunscreen lotions and sunscreen creams; base makeup cosmetics such as base makeup milks and base makeup creams; base cosmetics such as liquid foundations and foundation creams; key color makeup cosmetics such as eye shadows, blushers, and lip glosses, etc. Since the powder-containing cosmetic of the present invention can contain inorganic powder having a coloring effect and an ultraviolet protection effect, it can be provided particularly suitably as a sunscreen cosmetic, a base makeup cosmetic, a foundation cosmetic, and the like.

[0050] The powder-containing cosmetic of the present invention can suppress the dry feeling and frictional feeling caused by containing inorganic powder, and can achieve both a thick feeling and a skin-friendly feeling when applied to moist skin. Therefore, the powder-containing cosmetic of the present invention is suitable for moist skin after washing the face or skin care, or after bathing. [Example]

[0051] Hereinafter, the present invention will be described in further detail based on examples, but the present invention is not limited to these examples.

[0052] First, examples of the cosmetic oil of the present invention will be described. [Examples 1 to 7 and Comparative Examples 1 to 5] Cosmetic Oils According to the composition shown in Table 1, the components in Table 1 were uniformly mixed to prepare the cosmetic oils of Examples 1 to 7 and the cosmetic oils of Comparative Examples 1 to 5. In addition, as the (A) component, (A') component, (B) component and (B') component in Table 1, commercially available products provided for cosmetic applications were used. Each of the cosmetic oils of Examples 1 to 7 and Comparative Examples 1 to 5 was evaluated for its weightiness and penetration when applied to skin in a high-temperature, high-humidity state as described below. The evaluation results are shown in Table 1.

[0053] (1) Heaviness when applied to skin in high temperature and high humidity conditions 20 female testers (22 to 40 years old) soaked their forearms in 40°C hot water for 5 minutes, gently wiped off the water with a towel, and then immediately applied about 1g of each cosmetic oil of Examples 1 to 7 and Comparative Examples 1 to 5 to the inner side of the forearm, spread it with fingers, and evaluated the thick feeling at this time according to the following evaluation criteria. The total score of the 20 people was calculated, and based on the sum of the scores, the thick feeling when applied to the skin in a high temperature and high humidity state was judged according to the following judgment criteria. The cosmetic oil that obtained the judgment of "0" or "◎" was evaluated as a cosmetic oil with a good thick feeling when applied to the skin in a high temperature and high humidity state. <Evaluation Criteria> 2 points: When applied to the skin, a very good thick feeling is felt. 1 point: When applied to the skin, a relatively good thick feeling is felt. 0 points: When applied to the skin, the thick feeling is not felt. <Judgment Criteria> ◎: The total score is 35 points or more ○: The total score is 30 points or more and 34 points or less △: The total score is 20 points or more and 29 points or less ×: The total score is less than 19 points

[0054] (2) Penetration into the skin under high temperature and high humidity 20 female testers (22 to 40 years old) soaked their forearms in 40°C hot water for 5 minutes, gently removed the water with a towel, and then immediately applied about 1g of each cosmetic oil of Examples 1 to 7 and Comparative Examples 1 to 5 to the inner side of the forearm, smeared with fingers, and evaluated the penetration feeling at this time according to the following evaluation criteria. The total score of the 20 people was calculated, and based on the sum of the scores, the penetration feeling of the skin in the high temperature and high humidity state was judged according to the following judgment criteria. The cosmetic oil that received the judgment of "0" or "◎" was evaluated as a cosmetic oil with a good penetration feeling on the skin in the high temperature and high humidity state. <Evaluation Criteria> 2 points: When applied to the skin, the product penetrates very well. 1 point: When applied to the skin, a good penetration feeling is felt. 0 points: When applied to the skin, the skin felt poorly penetrated. <Judgment Criteria> ◎: The total score is 35 points or more ○: The total score is 30 points or more and 34 points or less △: The total score is 20 points or more and 29 points or less ×: The total score is less than 19 points

[0055]

Table 1

[0056] As shown in Table 1, the cosmetic oils of Examples 1 to 7 were evaluated to be good in both the thick feeling when applied to the skin in a high temperature and high humidity state and the penetration feeling into the skin in a high temperature and high humidity state. In particular, the cosmetic oils of Examples 4 to 6 containing 95 mass%, 80 mass% and 90 mass% of 2-octyl-1-dodecanol as the component (A) and 2-pentyl-1-dodecanol, 16-methyl-1-heptadecanol and 2-octyl-1-decanol as the component (B) were evaluated to have both a very good thick feeling when applied to the skin in a high temperature and high humidity state and a very good penetration feeling into the skin in a high temperature and high humidity state. On the other hand, the cosmetic oil of Comparative Example 1 not containing the component (B) was evaluated to have insufficient thickness when applied to skin in a high-temperature, high-humidity state and poor penetration into skin in a high-temperature, high-humidity state. The cosmetic oil of Comparative Example 2 not containing the component (A) was evaluated to have a poor sense of thickness when applied to the skin in a high-temperature, high-humidity state, and to have an insufficient sense of penetration into the skin in a high-temperature, high-humidity state. The cosmetic oil of Comparative Example 3, in which the content of component (A) was less than 70% by mass and the content of component (B) was more than 30% by mass, was evaluated as having insufficient thickness and penetration into the skin under high temperature and high humidity conditions when applied to the skin under high temperature and high humidity conditions. The cosmetic oil of Comparative Example 5, which contains behenyl alcohol (a straight-chain primary alcohol having 22 carbon atoms) as the component (A') instead of a part of the component (A) and the content of the component (A) is less than 70% by mass, and cetyl alcohol (a straight-chain primary alcohol having 16 carbon atoms) as the component (B') instead of the component (B), was evaluated as having poor penetration into the skin under high temperature and high humidity conditions.

[0057] Next, examples are shown for the emulsified cosmetic of the present invention. [Examples 8 to 17, Comparative Examples 6 to 13] Emulsified Cosmetics According to the compositions shown in Tables 2 and 3, emulsified cosmetics containing the cosmetic oils of Examples 1 to 7 and Comparative Examples 1 to 5 were prepared by the method shown below as Examples 8 to 17 and Comparative Examples 6 to 13. The common additive components in Tables 2 and 3 are shown in Table 4. In addition, as the (C) component, (D) component and (E) component in Tables 2 and 3 and the components shown in Table 4, commercially available products provided for cosmetic applications were used. <Preparation method> Each cosmetic oil of Examples 1 to 7 and Comparative Examples 1 to 5 in Tables 2 and 3, component (C), component (D), component (E), common additives and water were mixed, heated to 75° C. to 80° C., mixed by applying shear force using a homomixer at this temperature, emulsified and then cooled to prepare an emulsified cosmetic.

[0058] Each of the emulsified cosmetics of Examples 8 to 17 and Comparative Examples 6 to 13 was evaluated for (1) the weighty feeling when applied to skin in a high temperature and high humidity state, (2) the penetration feeling through the skin in a high temperature and high humidity state, and (3) the unpleasant adsorption feeling after application. Similar to the above-mentioned cosmetic oil, the weighty feeling when applied to the skin in a high temperature and high humidity state and the penetration feeling on the skin in a high temperature and high humidity state were evaluated. In addition, the unpleasant adsorption feeling after application was evaluated by the method shown below.

[0059] (3) Unpleasant adsorption feeling after application 20 female testers (22 to 40 years old) applied about 1g of each emulsified cosmetic of Examples 8 to 17 and Comparative Examples 6 to 13, and then immediately operated a liquid crystal screen with their fingers, and evaluated the unpleasant adsorption feeling felt at this time according to the following evaluation criteria. The sum of the scores of the 20 people was calculated, and based on the sum of the scores, the unpleasant adsorption feeling after application was judged using the following judgment criteria. Emulsified cosmetics that were judged as "0" or "◎" were evaluated as emulsified cosmetics with less unpleasant adsorption feeling. <Evaluation Criteria> 2 points: When touching the LCD screen, fingerprints are not obvious, fingers do not feel sucked by the screen, and no unpleasant suction feeling is felt. 1 point: When touching the LCD screen, fingerprints are slightly visible, and fingers feel slightly sucked by the screen, with a slightly unpleasant suction feeling. 0 points: When touching the LCD screen, fingerprints are obvious, and fingers feel like they are sucked by the screen, giving an unpleasant suction feeling. <Judgment Criteria> ◎: The total score is 35 points or more ○: The total score is 30 points or more and 34 points or less △: The total score is 20 points or more and 29 points or less ×: The total score is less than 19 points The evaluation results are shown in Tables 2 and 3.

[0060]

Table 2

[0061]

Table 3

[0062]

Table 4

[0063] As shown in Table 2, the emulsified cosmetics of Examples 8 to 17 were evaluated as having a good thick feeling when applied to skin in a high temperature and high humidity state and a good penetration feeling into the skin in a high temperature and high humidity state, and having little unpleasant adsorption feeling after application. In particular, the emulsified cosmetics of Examples 12 and 13, which contained 3% by mass of the cosmetic oil of Example 4 or 5, contained 1,3-butylene glycol and dipropylene glycol as the component (C), and had a ratio of the total content of the component (A) and the component (B) to the content of the component (C) [{(A)+(B)} / (C)] of 0.2, were evaluated to have a very good sense of thickness when applied to skin in a high-temperature and high-humidity state and a very good sense of penetration into the skin in a high-temperature and high-humidity state, and also had very little unpleasant adsorption feeling after application.

[0064] On the other hand, as shown in Table 3, among the emulsified cosmetics of Comparative Examples 6 to 13, no emulsified cosmetic was evaluated as good in all the evaluation items. That is, the emulsified cosmetic of Comparative Example 9, which contains the cosmetic oil of Comparative Example 1 without the component (B), was evaluated as having insufficient thickness when applied to skin in a high temperature and high humidity state, poor penetration into the skin in a high temperature and high humidity state, and having an unpleasant adsorption feeling after application. The emulsified cosmetic of Comparative Example 10, which contains the cosmetic oil of Comparative Example 2 without the component (A), was evaluated as having a poor sense of thickness when applied to skin in a high temperature and high humidity state, insufficient sense of penetration into the skin in a high temperature and high humidity state, and having an unpleasant sense of adsorption after application. The emulsified cosmetic of Comparative Example 11, which contains the cosmetic oil of Comparative Example 3 in which the content of component (A) is less than 70% by mass and the content of component (B) is greater than 30% by mass, was evaluated as having insufficient thickness when applied to skin in a high temperature and high humidity state and having a slight unpleasant feeling after application. The emulsified cosmetic of Comparative Example 12, which contains the cosmetic oil of Comparative Example 4 in which a part of component (A) is replaced by component (A') (a straight-chain primary alcohol having 22 carbon atoms) and the content of component (A) is less than 70% by mass, was evaluated as having poor penetration into the skin under high temperature and high humidity conditions and having an unpleasant adsorption feeling after application. The emulsified cosmetic of Comparative Example 13, which contains the cosmetic oil of Comparative Example 5 containing the component (B') (a linear primary alcohol having 16 carbon atoms) instead of the component (B), was evaluated as having poor penetration into the skin at high temperature and high humidity and having a slightly unpleasant adsorption feeling after application. The emulsified cosmetic of Comparative Example 6, which contained the cosmetic oil of Example 5 but whose content was less than 1% by mass, and the emulsified cosmetic of Comparative Example 8, which contained the cosmetic oil of Example 5 but whose content was more than 60% by mass, were evaluated as insufficiently permeating into the skin at high temperature and high humidity, and having a slightly unpleasant adsorption feeling after application. The emulsified cosmetic of Comparative Example 7 not containing the component (C) was evaluated as having poor penetration into the skin in a high-temperature and high-humidity state and having an unpleasant adsorption feeling after application.

[0065] Examples will be further described with respect to the cosmetic oil agent of the present invention and the emulsified cosmetic of the present invention. [Example 18] Cosmetic Oil According to the composition shown in Table 5, the components in Table 5 were uniformly mixed to prepare the cosmetic oil of Example 18. In addition, as the (A) component and the (B) component in Table 5, commercially available products provided for cosmetic applications were used. The cosmetic oil of Example 18 was evaluated for its weightiness when applied to skin in a high-temperature, high-humidity state and its penetration into skin in a high-temperature, high-humidity state in the same manner as the cosmetic oils of Examples 1 to 7 and Comparative Examples 1 to 5. The evaluation results are shown in Table 5.

[0066]

Table 5

[0067] As shown in Table 5, the cosmetic oil of Example 18 was evaluated as having a very good weighty feel when applied to skin in a high-temperature, high-humidity state and having a good penetration feel into skin in a high-temperature, high-humidity state.

[0068] [Example 19] Emulsified cosmetics According to the composition shown in Table 6, the cosmetic oil (component (A) and component (B)), component (C), component (D), component (E), the common additive components shown in Table 4 and water of Example 18 in Table 6 were mixed, heated to 75°C to 80°C, mixed by applying shear force at this temperature using a homomixer, emulsified and then cooled to prepare an emulsified cosmetic of Example 19. In addition, as components (C), (D) and (E) in Table 6 and the components shown in Table 4, commercially available products provided for cosmetic purposes were used. The emulsified cosmetic of Example 19 was evaluated in the same manner as in Examples 8 to 17 and Comparative Examples 6 to 13 for (1) the feeling of heaviness when applied to skin in a high temperature and high humidity state, (2) the feeling of penetration into skin in a high temperature and high humidity state, and (3) the unpleasant feeling of adsorption after application. The evaluation results are collectively shown in Table 6.

[0069]

Table 6

[0070] As shown in Table 6, the emulsified cosmetic of Example 19 containing the cosmetic oil of Example 18 was evaluated as having a very good weighty feel when applied to skin in a high temperature and high humidity state, having a good penetration feel into the skin in a high temperature and high humidity state, and having little unpleasant adsorption feeling after application.

[0071] Next, formulation examples of cosmetics containing the cosmetic oil of the present invention are shown (Formulation Examples 1 to 4). [Prescription Example 1] Hair Oil The cosmetic oil (component (A) and component (B)) of Example 4 in Table 7, oils other than components (A) and (B), hair conditioners, antioxidants, and fragrances were mixed and uniformly dissolved to prepare hair oils according to the composition shown in Table 7. In addition, as the oils other than components (A) and (B) in Table 7, hair conditioners, antioxidants, and fragrances, commercially available products provided for cosmetic applications were used. The hair oil of Formulation Example 1 had a good weighty feel on the skin and hair in a high-temperature and high-humidity state and a good penetration feeling on the skin and hair in a high-temperature and high-humidity state.

[0072]

Table 7

[0073] [Prescription Example 2] Point makeup remover According to the composition shown in Table 8, the cosmetic oil agent (component (A) and component (B)) of Example 18 in Table 8, the oil agent other than component (A) and component (B), and the antioxidant were mixed and uniformly layered on a water layer prepared by dissolving a lower alcohol, a humectant, and a stabilizer in water to prepare a highlight makeup remover. In addition, as the oil agent other than component (A) and component (B) in Table 8, the antioxidant, the lower alcohol, the humectant, and the stabilizer, commercially available products provided for cosmetic purposes were used. The key makeup remover of Formulation Example 2 had a good feeling of thickness when applied to skin in a high temperature and high humidity state and a good feeling of penetration into skin in a high temperature and high humidity state.

[0074]

Table 8

[0075] [Prescription Example 3] Makeup remover oil According to the composition shown in Table 8, the cosmetic oil (component (A) and component (B)) of Example 4 in Table 9, the oil other than components (A) and (B), the antioxidant and the lipophilic surfactant were mixed, and the hydrophilic surfactant and fragrance which were mixed and melted were added to prepare a cleansing oil. In addition, as the oil other than components (A) and (B) in Table 9, the antioxidant, the lipophilic surfactant, the hydrophilic surfactant and the fragrance, commercially available products provided for cosmetic use were used. The makeup remover oil of Formulation Example 3 had a good weighty feel when applied to skin in a high-temperature, high-humidity state and a good penetration feeling into the skin in a high-temperature, high-humidity state.

[0076]

Table 9

[0077] [Prescription Example 4] Hair Treatment According to the composition shown in Table 10, the cosmetic oil agent (component (A) and component (B)) of Example 4 in Table 10, oil agents other than components (A) and (B), hair conditioners, antioxidants, surfactants, moisturizers, pH adjusters, preservatives, and fragrances were added to water, and mixed by applying shear force to prepare a hair conditioner. In addition, as the oil agents other than components (A) and (B), hair conditioners, antioxidants, surfactants, moisturizers, pH adjusters, preservatives, and fragrances, commercially available products provided for cosmetic applications were used. The hair conditioner of Prescription Example 4 had a good weighty feel when applied to skin and hair in a high-temperature and high-humidity state and a good penetration feeling into skin and hair in a high-temperature and high-humidity state.

[0078]

Table 10

[0079] Next, formulation examples of the emulsified cosmetics of the present invention are shown (Formulation Examples 5 and 6). [Formulation Example 5] Emulsion According to the composition shown in Table 11, the cosmetic oil agent (component (A) and component (B)), component (E), lipophilic additive, component (C), component (D), hydrophilic additive and water of Example 4 in Table 11 were mixed, heated to 75°C to 80°C, mixed by applying shear force using a homomixer, emulsified and cooled to prepare an emulsion. In addition, as component (E), lipophilic additive, component (C), component (D) and hydrophilic additive, commercially available products provided for cosmetic use were used. The emulsion of Formulation Example 5 had a good sense of thickness when applied to skin in a high-temperature, high-humidity state and a good sense of penetration into skin in a high-temperature, high-humidity state, and also had little unpleasant adsorption feeling after application.

[0080]

Table 11

[0081] [Prescription Example 6] Cream The cosmetic oil (component (A) and component (B)), component (E), lipophilic additive, component (C), component (D), hydrophilic additive and water of Example 18 in Table 12 were mixed according to the composition shown in Table 12, heated to 75°C to 80°C, mixed by applying shear force using a homomixer, emulsified and cooled to prepare a cream. In addition, as component (E), lipophilic additive, component (C), component (D) and hydrophilic additive, commercially available products provided for cosmetic use were used. The cream of Formulation Example 6 had a good sense of thickness when applied to skin in a high-temperature, high-humidity state and a good sense of penetration into skin in a high-temperature, high-humidity state, and also had little unpleasant adsorption feeling after application.

[0082]

Table 12

[0083] Next, examples are shown for the powder-containing cosmetics of the present invention. [Examples 20 to 29, Comparative Examples 14 to 18] Oil-in-water emulsified cosmetics containing powder According to the composition shown in Table 13, the components (A), (B), (F), lipophilic additives, common additives and purified water in Table 13 were mixed, heated to 75°C to 80°C, and mixed by applying shear force at this temperature using a homomixer, emulsified and then cooled to prepare the oil-in-water emulsified cosmetics containing powders of Examples 20 to 29. In addition, according to the composition shown in Table 14, component (A), component (A'), component (B) or component (B'), component (F), common additives and purified water in Table 14 were mixed, heated to 75°C to 80°C, and at this temperature, a shear force was applied using a homogenizer to mix, and the mixture was emulsified and then cooled to prepare the oil-in-water emulsified cosmetics containing powders of Comparative Examples 14 to 18. In addition, the common additives in Tables 13 and 14 are as shown in Table 15. As the (A) component, (A') component, (B) component, (B') component, (F) component and lipophilic additive in Tables 13 and 14 and the common additives in Table 15, commercially available products provided for cosmetic applications were used.

[0084] The powder-containing oil-in-water emulsified cosmetics of Examples 20 to 29 and Comparative Examples 14 to 18 were evaluated for dryness after application to the skin, friction when applied to the skin, heaviness when applied to wet skin, and skin-friendly feeling when applied to wet skin as described below. The evaluation results are shown in Tables 13 and 14.

[0085] (1) Dryness 20 female testers (22 to 40 years old) applied about 0.1 g of each of the powdered oil-in-water emulsified cosmetics of the embodiments and comparative examples to the inner side of the forearm, and after applying with fingers, evaluated the dry feeling after application according to the following evaluation criteria. The total score of the 20 people was calculated, and based on the sum of the scores, the dry feeling after application to the skin was judged according to the following judgment criteria. The powdered oil-in-water emulsified cosmetics that were judged as "0" or "◎" were evaluated as powdered oil-in-water emulsified cosmetics that were not easy to produce dry feeling after application to the skin. <Evaluation Criteria> 2 points: No dryness was felt. 1 point: Slightly dry feeling. 0 points: A feeling of dryness is clearly felt. <Judgment Criteria> ◎: The total score is 35 points or more ○: The total score is 30 points or more and 34 points or less △: The total score is 20 points or more and 29 points or less ×: The total score is less than 19 points

[0086] (2) Friction 20 female testers (22 to 40 years old) applied about 0.1 g of each of the powdered oil-in-water emulsified cosmetics of the embodiments and comparative examples to the inner forearm, and smeared it with their fingers. The frictional feeling felt at this time was evaluated according to the following evaluation criteria. The total score of the 20 people was obtained, and based on the sum of the scores, the frictional feeling when applied to the skin was judged according to the following judgment criteria. The powdered oil-in-water emulsified cosmetics that were judged as "0" or "◎" were evaluated as powdered oil-in-water emulsified cosmetics that were not easy to produce frictional feeling when applied to the skin. <Evaluation Criteria> 2 points: No friction was felt. 1 point: Slight friction sensation. 0 points: The friction is clearly felt. <Judgment Criteria> ◎: The total score is 35 points or more ○: The total score is 30 points or more and 34 points or less △: The total score is 20 points or more and 29 points or less ×: The total score is less than 19 points

[0087] (3) Thick feeling when applied to wet skin 20 female testers (22 to 40 years old) sprayed 1 pump (0.4mL) of tap water at room temperature to the forearm with a sprayer and applied it with fingers for 10 seconds. Then about 0.1g of each of the embodiments and comparative examples containing powdered oil-in-water emulsified cosmetics were immediately applied to the inner side of the forearm and applied with fingers, and the heavy feeling felt at this time was evaluated according to the following evaluation criteria. The total score of the scores of 20 people was obtained, and based on the sum of the scores, the heavy feeling felt when applied to moist skin was judged according to the following judgment criteria. The oil-in-water emulsified cosmetics containing powders that were judged to be "0" or "◎" were evaluated as the oil-in-water emulsified cosmetics containing powders with good heavy feeling when applied to moist skin. <Evaluation Criteria> 2 points: When applied to the skin, a very good thick feeling is felt. 1 point: When applied to the skin, a relatively good thick feeling is felt. 0 points: When applied to the skin, the thick feeling is not felt. <Judgment Criteria> ◎: The total score is 35 points or more ○: The total score is 30 points or more and 34 points or less △: The total score is 20 points or more and 29 points or less ×: The total score is less than 19 points

[0088] (4) Skin-friendly feel when applied to wet skin 20 female testers (22 to 40 years old) sprayed 1 pump (0.4mL) of tap water at room temperature to the forearm with a sprayer and applied it with fingers for 10 seconds. Then about 0.1g of each of the embodiments and comparative examples containing powdered oil-in-water emulsified cosmetics were immediately applied to the inner side of the forearm and applied with fingers, and the skin-friendly feeling felt at this time was evaluated according to the following evaluation criteria. The total score of the scores of 20 people was obtained, and based on the sum of the scores, the skin-friendly feeling when applied to moist skin was judged according to the following judgment criteria. The powdered oil-in-water emulsified cosmetics containing the judgment of "0" or "◎" were evaluated as the powdered oil-in-water emulsified cosmetics containing good skin-friendly feeling when applied to moist skin. <Evaluation Criteria> 2 points: When applied to the skin, the skin-friendly feel was very good. 1 point: When applied to the skin, the skin feels relatively good. 0 points: When applied to the skin, the skin-friendly feeling was poor. <Judgment Criteria> ◎: The total score is 35 points or more ○: The total score is 30 points or more and 34 points or less △: The total score is 20 points or more and 29 points or less ×: The total score is less than 19 points

[0089]

Table 13

[0090]

Table 14

[0091]

Table 15

[0092] As shown in Table 13, the powder-containing oil-in-water emulsified cosmetics of Examples 20 to 29 were evaluated as powder-containing oil-in-water emulsified cosmetics that were less likely to produce a dry feeling after application and a frictional feeling during application, a heavy feeling when applied to wet skin, and a good skin-friendly feeling when applied to wet skin. In particular, the powder-containing oil-in-water emulsified cosmetics of Examples 25 to 27, which contained 2-octyl-1-dodecanol as the component (A), 2-pentyl-1-dodecanol, 2-octyl-1-decanol or 16-methyl-1-heptadecanol as the component (B), the (A) / (B) value was 4 or more and 10 or less, the total content of the components (A) and (B) was 3% by mass or more and 20% by mass or less, and the total content of the component (F) was 18% by mass or more and 35% by mass or less, were rated as "◎" in all evaluation items, and were evaluated as follows: a dry feeling after application and a frictional feeling during application were very unlikely to occur, and a heavy feeling when applied to wet skin and a skin-friendly feeling when applied to wet skin were very good.

[0093] On the other hand, as shown in Table 14, among the powder-containing oil-in-water emulsified cosmetics of Comparative Examples 14 to 18, none of the powder-containing oil-in-water emulsified cosmetics was evaluated as good in all evaluation items. That is, in the powder-containing oil-in-water emulsified cosmetic of Comparative Example 14 which does not contain the component (B), it was evaluated that a slight dry feeling after application and a frictional feeling during application were felt, a heavy feeling when applied to wet skin was insufficient, and a poor skin-friendly feeling when applied to wet skin. The powder-containing oil-in-water emulsified cosmetic of Comparative Example 15 not containing component (A) was evaluated as having a dry feeling after application and a slight friction feeling during application. In addition, it was evaluated as having a heavy feeling when applied to wet skin and having an insufficient skin-friendly feeling when applied to wet skin. In the oil-in-water emulsified cosmetic containing powder of Comparative Example 16, which contains a straight-chain primary alcohol having 22 carbon atoms as component (A') together with component (A) and has a (A) / (B) value of less than 2.3, it was evaluated that a slight dry feeling after application and a frictional feeling during application were felt, and that a heavy feeling when applied to wet skin and a skin-friendly feeling when applied to wet skin were insufficient. In the powder-containing oil-in-water emulsified cosmetic of Comparative Example 17 containing a straight-chain primary alcohol having 16 carbon atoms as component (B') instead of component (B), it was evaluated that a slight dry feeling after application and a frictional feeling during application were felt, and that the skin-friendly feeling when applied to wet skin was insufficient. The powder-containing oil-in-water emulsified cosmetic of Comparative Example 18 in which the content of component (F) was less than 2% by mass was evaluated to have insufficient thick feeling and skin-friendly feeling when applied to wet skin.

[0094] Next, examples of the water-in-oil emulsified cosmetic containing powder of the present invention are described. [Example 30] Water-in-oil emulsified cosmetic containing powder According to the composition shown in Table 16, to an oil phase prepared by mixing component (A), component (B), an oil agent other than component (A) and component (B), a surfactant and a lipophilic additive, adding component (F) to disperse the mixture and heating to 75°C to 80°C, was added an aqueous phase prepared by adding a hydrophilic additive to purified water, mixing, dissolving and heating to 75°C to 80°C, and the mixture was uniformly mixed and emulsified using a homomixer to obtain a water-in-oil emulsified cosmetic containing powder of Example 30. In addition, as the components (A), (B), and (F) in Table 16, oils other than the components (A) and (B), surfactants, lipophilic additives, and hydrophilic additives, commercially available products for cosmetic applications were used. The water-in-oil emulsified cosmetic containing the powder of Example 30 can be preferably used as a sunscreen.

[0095]

Table 16

[0096] [Example 31] Water-in-oil emulsified cosmetic containing powder According to the composition shown in Table 17, to an oil phase prepared by mixing component (A), component (B), an oil agent other than component (A) and component (B), a surfactant and a lipophilic additive, adding component (F) to disperse the mixture and heating to 75°C to 80°C, an aqueous phase prepared by adding a hydrophilic additive to purified water, mixing, dissolving and heating to 75°C to 80°C was added, and the mixture was uniformly mixed and emulsified using a homomixer to obtain a water-in-oil emulsified cosmetic containing powder of Example 31. In addition, as the components (A), (B), (F), and oils other than the components (A) and (B) in Table 17, surfactants, lipophilic additives, and hydrophilic additives, commercially available products provided for cosmetic applications were used. The water-in-oil emulsified cosmetic containing powder of Example 31 can be preferably used as a foundation.

[0097]

Table 17

[0098] Next, formulation examples of the powder-containing cosmetics of the present invention are shown (Formulation Examples 7 and 8). [Prescription Example 7] Lipstick According to the composition shown in Table 18, the cosmetic oil agent (component (A) and component (B)) of Example 18 in Table 18, the oil agent other than component (A) and component (B), and the lipophilic additive were uniformly melted, and the pigment and component (F) mixed with the surface modifier were added and uniformly dispersed, filled in a mold, and formed to prepare a lipstick. In addition, as the oil agent other than component (A) and component (B), the lipophilic additive, the surface modifier, the pigment, and the component (F), commercially available products provided for cosmetic purposes were used. The lipstick of Prescription Example 7 contains inorganic powder, so that the dry feeling and frictional feeling caused by it are suppressed, and when applied to moist lips, both a thick feeling and a skin-friendly feeling with the lips can be achieved.

[0099]

Table 18

[0100] [Prescription Example 8] Liquid Foundation According to the composition shown in Table 19, the cosmetic oil (component (A) and component (B)) of Example 4 in Table 19, oils other than component (A) and (B), lipophilic additives, surfactants, hydrophilic additives, and purified water were mixed and heated to 75°C to 80°C, component (F) mixed with a surface modifier was added and uniformly dispersed, and mixed and emulsified with a homomixer to prepare a liquid foundation. In addition, as components (A) and oils other than (B), lipophilic additives, surfactants, hydrophilic additives, surface modifiers, and component (F), commercially available products provided for cosmetic applications were used. The liquid foundation of Prescription Example 8 contains inorganic powder, so that the dry feeling and frictional feeling caused by the inorganic powder are suppressed, and when applied to moist skin, both a thick feeling and a skin-friendly feeling can be achieved.

[0101]

Table 19

Industrial Applicability

[0102] As described above in detail, according to the present invention, there can be provided a cosmetic oil agent which has a good thick feeling when applied to skin in a high temperature and high humidity state, has an excellent penetration feeling into the skin in a high temperature and high humidity state, and has a small unpleasant adsorption feeling after application. The above-mentioned cosmetic oil agent can be preferably used for an oily raw material of cosmetics and can be used for cosmetics as a touch improver. Furthermore, according to the present invention, it is possible to provide an emulsified cosmetic which has an excellent sense of thickness and penetration into the skin in a high temperature and high humidity state when applied to the skin in a high temperature and high humidity state, and further, has little unpleasant adsorption feeling after application, is suitable for wet skin after bathing, and for skin in a high temperature and high humidity state after towel drying, and also has excellent operability on a liquid crystal screen. Furthermore, according to the present invention, a powder-containing cosmetic can be provided in which the dry feeling and frictional feeling caused by the inorganic powder contained are suppressed and a thick feeling and a skin-friendly feeling are achieved when applied to moist skin. The powder-containing cosmetic of the present invention contains inorganic powder and can be preferably used for sunscreen cosmetics, base makeup cosmetics, foundation cosmetics, and the like.

[0103] This application is based on Japanese Patent Application No. 2022-086450 and Japanese Patent Application No. 2022-201487 filed in Japan, and all the contents thereof are incorporated herein by reference.

Claims

1. A cosmetic oil, characterized in that: The alcohol contains 70% to 99% by mass of (A) a branched primary alcohol having 20 to 30 carbon atoms and 1% to 30% by mass of (B) a branched primary alcohol having 12 to 19 carbon atoms.

2. An emulsified cosmetic, characterized in that: A cosmetic composition comprising 1% to 60% by mass of the cosmetic oil according to claim 1, (C) a divalent to hexavalent polyol having 3 to 6 carbon atoms, and (D) a nonionic surfactant having an HLB value of 10 to 18, wherein the ratio of the total content of the components (A) and (B) to the content of the component (C) [{(A)+(B)} / (C)] is 0.05 to 30 in terms of mass ratio.

3. A cosmetic, characterized in that: The invention contains 0.5% to 60% by mass of (A) a branched primary alcohol having 20 to 30 carbon atoms, 0.01% to 30% by mass of (B) a branched primary alcohol having 12 to 19 carbon atoms, and 2% to 50% by mass of (F) an inorganic powder having an average particle size of 10 nm to 100 μm, wherein the content ratio of the component (A) to the component (B) [(A) / (B)] is 2.3 to 99 in terms of mass ratio.

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